329 files changed, 66037 insertions, 19036 deletions

diff --git a/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp b/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp
index 700d223fbc6da..3b9b0f3460729 100644
--- a/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp
+++ b/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp
@@ -17,7 +17,6 @@
 #include "lldb/Core/Scalar.h"
 #include "lldb/Core/Value.h"
 #include "lldb/Core/ValueObjectConstResult.h"
-#include "lldb/Symbol/ClangASTContext.h"
 #include "lldb/Symbol/UnwindPlan.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/RegisterContext.h"
@@ -28,7 +27,7 @@
 #include "llvm/ADT/Triple.h"
 
 #include "Utility/ARM_DWARF_Registers.h"
-#include "Utility/ARM_GCC_Registers.h"
+#include "Utility/ARM_ehframe_Registers.h"
 #include "Plugins/Process/Utility/ARMDefines.h"
 
 #include <vector>
@@ -38,90 +37,90 @@ using namespace lldb_private;
 
 static RegisterInfo g_register_infos[] =
 {
-    //  NAME       ALT       SZ OFF ENCODING         FORMAT          COMPILER                DWARF               GENERIC                     GDB                     LLDB NATIVE            VALUE REGS    INVALIDATE REGS
+    //  NAME       ALT       SZ OFF ENCODING         FORMAT          EH_FRAME                DWARF               GENERIC                     PROCESS PLUGIN          LLDB NATIVE            VALUE REGS    INVALIDATE REGS
     //  ========== =======   == === =============    ============    ======================= =================== =========================== ======================= ====================== ==========    ===============
-    {   "r0",      "arg1",    4, 0, eEncodingUint    , eFormatHex,   { gcc_r0,               dwarf_r0,           LLDB_REGNUM_GENERIC_ARG1,   gdb_arm_r0,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r1",      "arg2",    4, 0, eEncodingUint    , eFormatHex,   { gcc_r1,               dwarf_r1,           LLDB_REGNUM_GENERIC_ARG2,   gdb_arm_r1,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r2",      "arg3",    4, 0, eEncodingUint    , eFormatHex,   { gcc_r2,               dwarf_r2,           LLDB_REGNUM_GENERIC_ARG3,   gdb_arm_r2,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r3",      "arg4",    4, 0, eEncodingUint    , eFormatHex,   { gcc_r3,               dwarf_r3,           LLDB_REGNUM_GENERIC_ARG4,   gdb_arm_r3,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r4",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r4,               dwarf_r4,           LLDB_INVALID_REGNUM,        gdb_arm_r4,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r5",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r5,               dwarf_r5,           LLDB_INVALID_REGNUM,        gdb_arm_r5,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r6",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r6,               dwarf_r6,           LLDB_INVALID_REGNUM,        gdb_arm_r6,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r7",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r7,               dwarf_r7,           LLDB_REGNUM_GENERIC_FP,     gdb_arm_r7,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r8",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r8,               dwarf_r8,           LLDB_INVALID_REGNUM,        gdb_arm_r8,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r9",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r9,               dwarf_r9,           LLDB_INVALID_REGNUM,        gdb_arm_r9,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r10",     NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r10,              dwarf_r10,          LLDB_INVALID_REGNUM,        gdb_arm_r10,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r11",     NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r11,              dwarf_r11,          LLDB_INVALID_REGNUM,        gdb_arm_r11,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r12",     NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r12,              dwarf_r12,          LLDB_INVALID_REGNUM,        gdb_arm_r12,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "sp",      "r13",     4, 0, eEncodingUint    , eFormatHex,   { gcc_sp,               dwarf_sp,           LLDB_REGNUM_GENERIC_SP,     gdb_arm_sp,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "lr",      "r14",     4, 0, eEncodingUint    , eFormatHex,   { gcc_lr,               dwarf_lr,           LLDB_REGNUM_GENERIC_RA,     gdb_arm_lr,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "pc",      "r15",     4, 0, eEncodingUint    , eFormatHex,   { gcc_pc,               dwarf_pc,           LLDB_REGNUM_GENERIC_PC,     gdb_arm_pc,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "cpsr",    "psr",     4, 0, eEncodingUint    , eFormatHex,   { gcc_cpsr,             dwarf_cpsr,         LLDB_REGNUM_GENERIC_FLAGS,  gdb_arm_cpsr,           LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s0",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s0,           LLDB_INVALID_REGNUM,        gdb_arm_s0,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s1",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s1,           LLDB_INVALID_REGNUM,        gdb_arm_s1,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s2",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s2,           LLDB_INVALID_REGNUM,        gdb_arm_s2,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s3",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s3,           LLDB_INVALID_REGNUM,        gdb_arm_s3,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s4",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s4,           LLDB_INVALID_REGNUM,        gdb_arm_s4,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s5",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s5,           LLDB_INVALID_REGNUM,        gdb_arm_s5,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s6",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s6,           LLDB_INVALID_REGNUM,        gdb_arm_s6,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s7",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s7,           LLDB_INVALID_REGNUM,        gdb_arm_s7,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s8",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s8,           LLDB_INVALID_REGNUM,        gdb_arm_s8,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s9",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s9,           LLDB_INVALID_REGNUM,        gdb_arm_s9,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s10",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s10,          LLDB_INVALID_REGNUM,        gdb_arm_s10,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s11",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s11,          LLDB_INVALID_REGNUM,        gdb_arm_s11,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s12",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s12,          LLDB_INVALID_REGNUM,        gdb_arm_s12,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s13",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s13,          LLDB_INVALID_REGNUM,        gdb_arm_s13,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s14",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s14,          LLDB_INVALID_REGNUM,        gdb_arm_s14,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s15",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s15,          LLDB_INVALID_REGNUM,        gdb_arm_s15,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s16",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s16,          LLDB_INVALID_REGNUM,        gdb_arm_s16,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s17",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s17,          LLDB_INVALID_REGNUM,        gdb_arm_s17,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s18",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s18,          LLDB_INVALID_REGNUM,        gdb_arm_s18,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s19",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s19,          LLDB_INVALID_REGNUM,        gdb_arm_s19,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s20",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s20,          LLDB_INVALID_REGNUM,        gdb_arm_s20,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s21",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s21,          LLDB_INVALID_REGNUM,        gdb_arm_s21,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s22",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s22,          LLDB_INVALID_REGNUM,        gdb_arm_s22,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s23",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s23,          LLDB_INVALID_REGNUM,        gdb_arm_s23,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s24",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s24,          LLDB_INVALID_REGNUM,        gdb_arm_s24,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s25",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s25,          LLDB_INVALID_REGNUM,        gdb_arm_s25,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s26",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s26,          LLDB_INVALID_REGNUM,        gdb_arm_s26,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s27",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s27,          LLDB_INVALID_REGNUM,        gdb_arm_s27,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s28",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s28,          LLDB_INVALID_REGNUM,        gdb_arm_s28,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s29",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s29,          LLDB_INVALID_REGNUM,        gdb_arm_s29,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s30",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s30,          LLDB_INVALID_REGNUM,        gdb_arm_s30,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s31",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s31,          LLDB_INVALID_REGNUM,        gdb_arm_s31,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "fpscr",   NULL,      4, 0, eEncodingUint    , eFormatHex  , { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM,        gdb_arm_fpscr,          LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d0",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d0,           LLDB_INVALID_REGNUM,        gdb_arm_d0,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d1",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d1,           LLDB_INVALID_REGNUM,        gdb_arm_d1,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d2",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d2,           LLDB_INVALID_REGNUM,        gdb_arm_d2,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d3",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d3,           LLDB_INVALID_REGNUM,        gdb_arm_d3,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d4",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d4,           LLDB_INVALID_REGNUM,        gdb_arm_d4,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d5",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d5,           LLDB_INVALID_REGNUM,        gdb_arm_d5,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d6",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d6,           LLDB_INVALID_REGNUM,        gdb_arm_d6,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d7",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d7,           LLDB_INVALID_REGNUM,        gdb_arm_d7,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d8",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d8,           LLDB_INVALID_REGNUM,        gdb_arm_d8,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d9",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d9,           LLDB_INVALID_REGNUM,        gdb_arm_d9,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d10",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d10,          LLDB_INVALID_REGNUM,        gdb_arm_d10,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d11",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d11,          LLDB_INVALID_REGNUM,        gdb_arm_d11,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d12",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d12,          LLDB_INVALID_REGNUM,        gdb_arm_d12,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d13",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d13,          LLDB_INVALID_REGNUM,        gdb_arm_d13,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d14",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d14,          LLDB_INVALID_REGNUM,        gdb_arm_d14,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d15",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d15,          LLDB_INVALID_REGNUM,        gdb_arm_d15,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d16",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d16,          LLDB_INVALID_REGNUM,        gdb_arm_d16,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d17",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d17,          LLDB_INVALID_REGNUM,        gdb_arm_d17,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d18",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d18,          LLDB_INVALID_REGNUM,        gdb_arm_d18,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d19",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d19,          LLDB_INVALID_REGNUM,        gdb_arm_d19,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d20",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d20,          LLDB_INVALID_REGNUM,        gdb_arm_d20,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d21",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d21,          LLDB_INVALID_REGNUM,        gdb_arm_d21,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d22",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d22,          LLDB_INVALID_REGNUM,        gdb_arm_d22,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d23",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d23,          LLDB_INVALID_REGNUM,        gdb_arm_d23,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d24",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d24,          LLDB_INVALID_REGNUM,        gdb_arm_d24,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d25",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d25,          LLDB_INVALID_REGNUM,        gdb_arm_d25,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d26",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d26,          LLDB_INVALID_REGNUM,        gdb_arm_d26,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d27",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d27,          LLDB_INVALID_REGNUM,        gdb_arm_d27,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d28",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d28,          LLDB_INVALID_REGNUM,        gdb_arm_d28,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d29",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d29,          LLDB_INVALID_REGNUM,        gdb_arm_d29,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d30",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d30,          LLDB_INVALID_REGNUM,        gdb_arm_d30,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d31",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d31,          LLDB_INVALID_REGNUM,        gdb_arm_d31,            LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r0",      "arg1",    4, 0, eEncodingUint    , eFormatHex,   { ehframe_r0,           dwarf_r0,           LLDB_REGNUM_GENERIC_ARG1,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r1",      "arg2",    4, 0, eEncodingUint    , eFormatHex,   { ehframe_r1,           dwarf_r1,           LLDB_REGNUM_GENERIC_ARG2,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r2",      "arg3",    4, 0, eEncodingUint    , eFormatHex,   { ehframe_r2,           dwarf_r2,           LLDB_REGNUM_GENERIC_ARG3,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r3",      "arg4",    4, 0, eEncodingUint    , eFormatHex,   { ehframe_r3,           dwarf_r3,           LLDB_REGNUM_GENERIC_ARG4,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r4",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r4,           dwarf_r4,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r5",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r5,           dwarf_r5,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r6",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r6,           dwarf_r6,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r7",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r7,           dwarf_r7,           LLDB_REGNUM_GENERIC_FP,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r8",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r8,           dwarf_r8,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r9",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r9,           dwarf_r9,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r10",     NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r10,          dwarf_r10,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r11",     NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r11,          dwarf_r11,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r12",     NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r12,          dwarf_r12,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "sp",      "r13",     4, 0, eEncodingUint    , eFormatHex,   { ehframe_sp,           dwarf_sp,           LLDB_REGNUM_GENERIC_SP,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "lr",      "r14",     4, 0, eEncodingUint    , eFormatHex,   { ehframe_lr,           dwarf_lr,           LLDB_REGNUM_GENERIC_RA,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "pc",      "r15",     4, 0, eEncodingUint    , eFormatHex,   { ehframe_pc,           dwarf_pc,           LLDB_REGNUM_GENERIC_PC,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "cpsr",    "psr",     4, 0, eEncodingUint    , eFormatHex,   { ehframe_cpsr,         dwarf_cpsr,         LLDB_REGNUM_GENERIC_FLAGS,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s0",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s0,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s1",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s1,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s2",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s2,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s3",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s3,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s4",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s4,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s5",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s5,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s6",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s6,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s7",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s7,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s8",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s8,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s9",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s9,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s10",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s10,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s11",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s11,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s12",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s12,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s13",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s13,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s14",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s14,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s15",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s15,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s16",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s16,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s17",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s17,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s18",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s18,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s19",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s19,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s20",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s20,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s21",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s21,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s22",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s22,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s23",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s23,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s24",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s24,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s25",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s25,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s26",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s26,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s27",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s27,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s28",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s28,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s29",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s29,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s30",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s30,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s31",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s31,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "fpscr",   NULL,      4, 0, eEncodingUint    , eFormatHex  , { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d0",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d0,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d1",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d1,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d2",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d2,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d3",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d3,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d4",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d4,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d5",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d5,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d6",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d6,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d7",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d7,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d8",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d8,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d9",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d9,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d10",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d10,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d11",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d11,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d12",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d12,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d13",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d13,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d14",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d14,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d15",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d15,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d16",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d16,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d17",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d17,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d18",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d18,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d19",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d19,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d20",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d20,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d21",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d21,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d22",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d22,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d23",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d23,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d24",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d24,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d25",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d25,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d26",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d26,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d27",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d27,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d28",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d28,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d29",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d29,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d30",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d30,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d31",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d31,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
     {   "r8_usr",  NULL,      4, 0, eEncodingUint    , eFormatHex,   { LLDB_INVALID_REGNUM,  dwarf_r8_usr,       LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
     {   "r9_usr",  NULL,      4, 0, eEncodingUint    , eFormatHex,   { LLDB_INVALID_REGNUM,  dwarf_r9_usr,       LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
     {   "r10_usr", NULL,      4, 0, eEncodingUint    , eFormatHex,   { LLDB_INVALID_REGNUM,  dwarf_r10_usr,      LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
@@ -239,8 +238,8 @@ ABIMacOSX_arm::PrepareTrivialCall (Thread &thread,
         size_t num_stack_regs = ae - ai;
         
         sp -= (num_stack_regs * 4);
-        // Keep the stack 8 byte aligned, not that we need to
-        sp &= ~(8ull-1ull);
+        // Keep the stack 16 byte aligned
+        sp &= ~(16ull-1ull);
         
         // just using arg1 to get the right size
         const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1);
@@ -333,18 +332,18 @@ ABIMacOSX_arm::GetArgumentValues (Thread &thread,
         if (!value)
             return false;
         
-        ClangASTType clang_type = value->GetClangType();
-        if (clang_type)
+        CompilerType compiler_type = value->GetCompilerType();
+        if (compiler_type)
         {
             bool is_signed = false;
             size_t bit_width = 0;
-            if (clang_type.IsIntegerType (is_signed))
+            if (compiler_type.IsIntegerType (is_signed))
             {
-                bit_width = clang_type.GetBitSize(&thread);
+                bit_width = compiler_type.GetBitSize(&thread);
             }
-            else if (clang_type.IsPointerOrReferenceType ())
+            else if (compiler_type.IsPointerOrReferenceType ())
             {
-                bit_width = clang_type.GetBitSize(&thread);
+                bit_width = compiler_type.GetBitSize(&thread);
             }
             else
             {
@@ -414,22 +413,37 @@ ABIMacOSX_arm::GetArgumentValues (Thread &thread,
     return true;
 }
 
+bool
+ABIMacOSX_arm::IsArmv7kProcess (Thread *thread) const
+{
+    bool is_armv7k = false;
+    if (thread)
+    {
+        ProcessSP process_sp (thread->GetProcess());
+        if (process_sp)
+        {
+            const ArchSpec &arch (process_sp->GetTarget().GetArchitecture());
+            const ArchSpec::Core system_core = arch.GetCore();
+            if (system_core == ArchSpec::eCore_arm_armv7k)
+            {
+                is_armv7k = true;
+            }
+        }
+    }
+    return is_armv7k;
+}
+
 ValueObjectSP
 ABIMacOSX_arm::GetReturnValueObjectImpl (Thread &thread,
-                                         lldb_private::ClangASTType &clang_type) const
+                                         lldb_private::CompilerType &compiler_type) const
 {
     Value value;
     ValueObjectSP return_valobj_sp;
     
-    if (!clang_type)
-        return return_valobj_sp;
-    
-    clang::ASTContext *ast_context = clang_type.GetASTContext();
-    if (!ast_context)
+    if (!compiler_type)
         return return_valobj_sp;
 
-    //value.SetContext (Value::eContextTypeClangType, clang_type.GetOpaqueQualType());
-    value.SetClangType (clang_type);
+    value.SetCompilerType (compiler_type);
             
     RegisterContext *reg_ctx = thread.GetRegisterContext().get();
     if (!reg_ctx)
@@ -441,14 +455,68 @@ ABIMacOSX_arm::GetReturnValueObjectImpl (Thread &thread,
     // when reading data
     
     const RegisterInfo *r0_reg_info = reg_ctx->GetRegisterInfoByName("r0", 0);
-    if (clang_type.IsIntegerType (is_signed))
+    if (compiler_type.IsIntegerType (is_signed))
     {
-        size_t bit_width = clang_type.GetBitSize(&thread);
+        size_t bit_width = compiler_type.GetBitSize(&thread);
         
         switch (bit_width)
         {
             default:
                 return return_valobj_sp;
+            case 128:
+                if (IsArmv7kProcess (&thread))
+                {
+                    // "A composite type not larger than 16 bytes is returned in r0-r3. The format is
+                    // as if the result had been stored in memory at a word-aligned address and then
+                    // loaded into r0-r3 with an ldm instruction"
+                    {
+                        const RegisterInfo *r1_reg_info = reg_ctx->GetRegisterInfoByName("r1", 0);
+                        const RegisterInfo *r2_reg_info = reg_ctx->GetRegisterInfoByName("r2", 0);
+                        const RegisterInfo *r3_reg_info = reg_ctx->GetRegisterInfoByName("r3", 0);
+                        if (r1_reg_info && r2_reg_info && r3_reg_info)
+                        {
+                            const size_t byte_size = compiler_type.GetByteSize(&thread);
+                            ProcessSP process_sp (thread.GetProcess());
+                            if (byte_size <= r0_reg_info->byte_size + r1_reg_info->byte_size + r2_reg_info->byte_size + r3_reg_info->byte_size
+                                && process_sp)
+                            {
+                                std::unique_ptr<DataBufferHeap> heap_data_ap (new DataBufferHeap(byte_size, 0));
+                                const ByteOrder byte_order = process_sp->GetByteOrder();
+                                RegisterValue r0_reg_value;
+                                RegisterValue r1_reg_value;
+                                RegisterValue r2_reg_value;
+                                RegisterValue r3_reg_value;
+                                if (reg_ctx->ReadRegister(r0_reg_info, r0_reg_value)
+                                    && reg_ctx->ReadRegister(r1_reg_info, r1_reg_value)
+                                    && reg_ctx->ReadRegister(r2_reg_info, r2_reg_value)
+                                    && reg_ctx->ReadRegister(r3_reg_info, r3_reg_value))
+                                {
+                                    Error error;
+                                    if (r0_reg_value.GetAsMemoryData (r0_reg_info, heap_data_ap->GetBytes()+0, 4, byte_order, error)
+                                        && r1_reg_value.GetAsMemoryData (r1_reg_info, heap_data_ap->GetBytes()+4, 4, byte_order, error)
+                                        && r2_reg_value.GetAsMemoryData (r2_reg_info, heap_data_ap->GetBytes()+8, 4, byte_order, error)
+                                        && r3_reg_value.GetAsMemoryData (r3_reg_info, heap_data_ap->GetBytes()+12, 4, byte_order, error))
+                                    {
+                                        DataExtractor data (DataBufferSP (heap_data_ap.release()),
+                                                            byte_order,
+                                                            process_sp->GetAddressByteSize());
+                                        
+                                        return_valobj_sp = ValueObjectConstResult::Create (&thread,
+                                                                                        compiler_type,
+                                                                                        ConstString(""),
+                                                                                        data);
+                                        return return_valobj_sp;
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+                else
+                {
+                    return return_valobj_sp;
+                }
+                break;
             case 64:
             {
                 const RegisterInfo *r1_reg_info = reg_ctx->GetRegisterInfoByName("r1", 0);
@@ -481,7 +549,7 @@ ABIMacOSX_arm::GetReturnValueObjectImpl (Thread &thread,
                 break;
         }
     }
-    else if (clang_type.IsPointerType ())
+    else if (compiler_type.IsPointerType ())
     {
         uint32_t ptr = thread.GetRegisterContext()->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX;
         value.GetScalar() = ptr;
@@ -510,8 +578,8 @@ ABIMacOSX_arm::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObj
         return error;
     }
     
-    ClangASTType clang_type = new_value_sp->GetClangType();
-    if (!clang_type)
+    CompilerType compiler_type = new_value_sp->GetCompilerType();
+    if (!compiler_type)
     {
         error.SetErrorString ("Null clang type for return value.");
         return error;
@@ -526,7 +594,7 @@ ABIMacOSX_arm::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObj
     RegisterContext *reg_ctx = thread->GetRegisterContext().get();
 
     bool set_it_simple = false;
-    if (clang_type.IsIntegerType (is_signed) || clang_type.IsPointerType())
+    if (compiler_type.IsIntegerType (is_signed) || compiler_type.IsPointerType())
     {
         DataExtractor data;
         Error data_error;
@@ -561,12 +629,45 @@ ABIMacOSX_arm::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObj
                 }
             }
         }
+        else if (num_bytes <= 16 && IsArmv7kProcess (frame_sp->GetThread().get()))
+        {
+            // "A composite type not larger than 16 bytes is returned in r0-r3. The format is
+            // as if the result had been stored in memory at a word-aligned address and then
+            // loaded into r0-r3 with an ldm instruction"
+
+            const RegisterInfo *r0_info = reg_ctx->GetRegisterInfoByName("r0", 0);
+            const RegisterInfo *r1_info = reg_ctx->GetRegisterInfoByName("r1", 0);
+            const RegisterInfo *r2_info = reg_ctx->GetRegisterInfoByName("r2", 0);
+            const RegisterInfo *r3_info = reg_ctx->GetRegisterInfoByName("r3", 0);
+            lldb::offset_t offset = 0;
+            uint32_t bytes_written = 4;
+            uint32_t raw_value = data.GetMaxU64(&offset, 4);
+            if (reg_ctx->WriteRegisterFromUnsigned (r0_info, raw_value) && bytes_written <= num_bytes)
+            {
+                bytes_written += 4;
+                raw_value = data.GetMaxU64(&offset, 4);
+                if (bytes_written <= num_bytes && reg_ctx->WriteRegisterFromUnsigned (r1_info, raw_value))
+                {
+                    bytes_written += 4;
+                    raw_value = data.GetMaxU64(&offset, 4);
+                    if (bytes_written <= num_bytes && reg_ctx->WriteRegisterFromUnsigned (r2_info, raw_value))
+                    {
+                        bytes_written += 4;
+                        raw_value = data.GetMaxU64(&offset, 4);
+                        if (bytes_written <= num_bytes && reg_ctx->WriteRegisterFromUnsigned (r3_info, raw_value))
+                        {
+                            set_it_simple = true;
+                        }
+                    }
+                }
+            }
+        }
         else
         {
             error.SetErrorString("We don't support returning longer than 64 bit integer values at present.");
         }
     }
-    else if (clang_type.IsFloatingPointType (count, is_complex))
+    else if (compiler_type.IsFloatingPointType (count, is_complex))
     {
         if (is_complex)
             error.SetErrorString ("We don't support returning complex values at present");
diff --git a/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.h b/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.h
index eee43943d73ac..a4e9dead77946 100644
--- a/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.h
+++ b/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.h
@@ -20,42 +20,36 @@
 class ABIMacOSX_arm : public lldb_private::ABI
 {
 public:
-    ~ABIMacOSX_arm() { }
+    ~ABIMacOSX_arm() override = default;
     
-    virtual size_t 
-    GetRedZoneSize () const;
+    size_t 
+    GetRedZoneSize() const override;
     
-    virtual bool
-    PrepareTrivialCall (lldb_private::Thread &thread, 
-                        lldb::addr_t sp,
-                        lldb::addr_t func_addr,
-                        lldb::addr_t returnAddress, 
-                        llvm::ArrayRef<lldb::addr_t> args) const;
+    bool
+    PrepareTrivialCall(lldb_private::Thread &thread,
+                       lldb::addr_t sp,
+                       lldb::addr_t func_addr,
+                       lldb::addr_t returnAddress,
+                       llvm::ArrayRef<lldb::addr_t> args) const override;
     
-    virtual bool
-    GetArgumentValues (lldb_private::Thread &thread,
-                       lldb_private::ValueList &values) const;
+    bool
+    GetArgumentValues(lldb_private::Thread &thread,
+                      lldb_private::ValueList &values) const override;
     
-    virtual lldb_private::Error
-    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value);
+    lldb_private::Error
+    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value) override;
 
-protected:
-    virtual lldb::ValueObjectSP
-    GetReturnValueObjectImpl (lldb_private::Thread &thread,
-                    lldb_private::ClangASTType &ast_type) const;
-
-public:
-    virtual bool
-    CreateFunctionEntryUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
     
-    virtual bool
-    CreateDefaultUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
     
-    virtual bool
-    RegisterIsVolatile (const lldb_private::RegisterInfo *reg_info);
+    bool
+    RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
 
-    virtual bool
-    CallFrameAddressIsValid (lldb::addr_t cfa)
+    bool
+    CallFrameAddressIsValid(lldb::addr_t cfa) override
     {
         // Make sure the stack call frame addresses are are 4 byte aligned
         if (cfa & (4ull - 1ull))
@@ -65,8 +59,8 @@ public:
         return true;
     }
     
-    virtual bool
-    CodeAddressIsValid (lldb::addr_t pc)
+    bool
+    CodeAddressIsValid(lldb::addr_t pc) override
     {
         // Just make sure the address is a valid 32 bit address. Bit zero
         // might be set due to Thumb function calls, so don't enforce 2 byte
@@ -74,20 +68,24 @@ public:
         return pc <= UINT32_MAX;
     }
     
-    virtual lldb::addr_t
-    FixCodeAddress (lldb::addr_t pc)
+    lldb::addr_t
+    FixCodeAddress(lldb::addr_t pc) override
     {
         // ARM uses bit zero to signify a code address is thumb, so we must
         // strip bit zero in any code addresses.
         return pc & ~(lldb::addr_t)1;
     }
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoArray (uint32_t &count);
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoArray(uint32_t &count) override;
+
+    bool
+    IsArmv7kProcess (lldb_private::Thread *thread) const;
 
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
+
     static void
     Initialize();
     
@@ -103,13 +101,18 @@ public:
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
+
+    lldb_private::ConstString
+    GetPluginName() override;
     
-    virtual uint32_t
-    GetPluginVersion();
+    uint32_t
+    GetPluginVersion() override;
     
 protected:
+    lldb::ValueObjectSP
+    GetReturnValueObjectImpl(lldb_private::Thread &thread,
+                             lldb_private::CompilerType &ast_type) const override;
+
 private:
     ABIMacOSX_arm() : 
         lldb_private::ABI() 
@@ -118,4 +121,4 @@ private:
     }
 };
 
-#endif  // liblldb_ABIMacOSX_arm_h_
+#endif // liblldb_ABIMacOSX_arm_h_
diff --git a/source/Plugins/ABI/MacOSX-arm64/ABIMacOSX_arm64.cpp b/source/Plugins/ABI/MacOSX-arm64/ABIMacOSX_arm64.cpp
index 04b96180deb37..0e6f9d663ae8e 100644
--- a/source/Plugins/ABI/MacOSX-arm64/ABIMacOSX_arm64.cpp
+++ b/source/Plugins/ABI/MacOSX-arm64/ABIMacOSX_arm64.cpp
@@ -19,7 +19,6 @@
 #include "lldb/Core/Value.h"
 #include "lldb/Core/Value.h"
 #include "lldb/Core/ValueObjectConstResult.h"
-#include "lldb/Symbol/ClangASTContext.h"
 #include "lldb/Symbol/UnwindPlan.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/RegisterContext.h"
@@ -37,12 +36,11 @@ using namespace lldb;
 using namespace lldb_private;
 
 static const char *pluginDesc = "Mac OS X ABI for arm64 targets";
-static const char *pluginShort = "abi.macosx-arm64";
 
 
 static RegisterInfo g_register_infos[] = 
 {
-    //  NAME       ALT       SZ OFF ENCODING          FORMAT                   COMPILER             DWARF                  GENERIC                     GDB                     LLDB NATIVE
+    //  NAME       ALT       SZ OFF ENCODING          FORMAT                   EH_FRAME             DWARF                  GENERIC                     PROCESS PLUGIN          LLDB NATIVE
     //  ========== =======   == === =============     ===================      ===================  ====================== =========================== ======================= ======================
     {   "x0",      NULL,      8, 0, eEncodingUint   , eFormatHex           , { LLDB_INVALID_REGNUM, arm64_dwarf::x0,       LLDB_REGNUM_GENERIC_ARG1,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
     {   "x1",      NULL,      8, 0, eEncodingUint   , eFormatHex           , { LLDB_INVALID_REGNUM, arm64_dwarf::x1,       LLDB_REGNUM_GENERIC_ARG2,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
@@ -77,7 +75,7 @@ static RegisterInfo g_register_infos[] =
     {   "lr",      "x30",     8, 0, eEncodingUint   , eFormatHex           , { LLDB_INVALID_REGNUM, arm64_dwarf::x30,      LLDB_REGNUM_GENERIC_RA,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
     {   "sp",      "x31",     8, 0, eEncodingUint   , eFormatHex           , { LLDB_INVALID_REGNUM, arm64_dwarf::x31,      LLDB_REGNUM_GENERIC_SP,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
     {   "pc",      NULL,      8, 0, eEncodingUint   , eFormatHex           , { LLDB_INVALID_REGNUM, arm64_dwarf::pc,       LLDB_REGNUM_GENERIC_PC,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "cpsr",    "psr",     4, 0, eEncodingUint   , eFormatHex           , { LLDB_INVALID_REGNUM, arm64_dwarf::cpsr, LLDB_REGNUM_GENERIC_FLAGS,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "cpsr",    "psr",     4, 0, eEncodingUint   , eFormatHex           , { LLDB_INVALID_REGNUM, arm64_dwarf::cpsr,     LLDB_REGNUM_GENERIC_FLAGS,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
 
     {   "v0",      NULL,     16, 0, eEncodingVector , eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM, arm64_dwarf::v0,       LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
     {   "v1",      NULL,     16, 0, eEncodingVector , eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM, arm64_dwarf::v1,       LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
@@ -115,71 +113,71 @@ static RegisterInfo g_register_infos[] =
     {   "fpsr",    NULL,      4, 0, eEncodingUint   , eFormatHex           , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
     {   "fpcr",    NULL,      4, 0, eEncodingUint   , eFormatHex           , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
 
-    {   "s0",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s1",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s2",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s3",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s4",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s5",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s6",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s7",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s8",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s9",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s10",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s11",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s12",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s13",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s14",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s15",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s16",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s17",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s18",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s19",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s20",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s21",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s22",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s23",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s24",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s25",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s26",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s27",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s28",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s29",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s30",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "s31",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-
-    {   "d0",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d1",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d2",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d3",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d4",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d5",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d6",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d7",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d8",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d9",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d10",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d11",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d12",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d13",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d14",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d15",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d16",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d17",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d18",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d19",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d20",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d21",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d22",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d23",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d24",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d25",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d26",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d27",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d28",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d29",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d30",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
-    {   "d31",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL }
+    {   "s0",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s1",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s2",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s3",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s4",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s5",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s6",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s7",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s8",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s9",      NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s10",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s11",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s12",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s13",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s14",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s15",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s16",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s17",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s18",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s19",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s20",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s21",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s22",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s23",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s24",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s25",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s26",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s27",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s28",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s29",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s30",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "s31",     NULL,     4, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+
+    {   "d0",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d1",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d2",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d3",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d4",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d5",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d6",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d7",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d8",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d9",      NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d10",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d11",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d12",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d13",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d14",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d15",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d16",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d17",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d18",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d19",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d20",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d21",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d22",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d23",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d24",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d25",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d26",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d27",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d28",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d29",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d30",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
+    {   "d31",     NULL,     8, 0, eEncodingIEEE754 , eFormatFloat         , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,   LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL }
 };
 
 static const uint32_t k_num_register_infos = llvm::array_lengthof(g_register_infos);
@@ -322,7 +320,7 @@ ABIMacOSX_arm64::GetArgumentValues (Thread &thread, ValueList &values) const
         if (!value)
             return false;
         
-        ClangASTType value_type = value->GetClangType();
+        CompilerType value_type = value->GetCompilerType();
         if (value_type)
         {
             bool is_signed = false;
@@ -424,7 +422,7 @@ ABIMacOSX_arm64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueO
         return error;
     }
     
-    ClangASTType return_value_type = new_value_sp->GetClangType();
+    CompilerType return_value_type = new_value_sp->GetCompilerType();
     if (!return_value_type)
     {
         error.SetErrorString ("Null clang type for return value.");
@@ -709,7 +707,7 @@ ABIMacOSX_arm64::RegisterIsVolatile (const RegisterInfo *reg_info)
 static bool
 LoadValueFromConsecutiveGPRRegisters (ExecutionContext &exe_ctx,
                                       RegisterContext *reg_ctx,
-                                      const ClangASTType &value_type,
+                                      const CompilerType &value_type,
                                       bool is_return_value, // false => parameter, true => return value
                                       uint32_t &NGRN,       // NGRN (see ABI documentation)
                                       uint32_t &NSRN,       // NSRN (see ABI documentation)
@@ -724,18 +722,16 @@ LoadValueFromConsecutiveGPRRegisters (ExecutionContext &exe_ctx,
     const ByteOrder byte_order = exe_ctx.GetProcessRef().GetByteOrder();
     Error error;
 
-    ClangASTType base_type;
+    CompilerType base_type;
     const uint32_t homogeneous_count = value_type.IsHomogeneousAggregate (&base_type);
     if (homogeneous_count > 0 && homogeneous_count <= 8)
     {
-        printf ("ClangASTContext::IsHomogeneousAggregate() => %u\n", homogeneous_count);
         // Make sure we have enough registers
         if (NSRN < 8 && (8-NSRN) >= homogeneous_count)
         {
             if (!base_type)
                 return false;
             const size_t base_byte_size = base_type.GetByteSize(nullptr);
-            printf ("ClangASTContext::IsHomogeneousAggregate() => base_byte_size = %" PRIu64 "\n", (uint64_t) base_byte_size);
             uint32_t data_offset = 0;
 
             for (uint32_t i=0; i<homogeneous_count; ++i)
@@ -861,7 +857,7 @@ LoadValueFromConsecutiveGPRRegisters (ExecutionContext &exe_ctx,
 }
 
 ValueObjectSP
-ABIMacOSX_arm64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clang_type) const
+ABIMacOSX_arm64::GetReturnValueObjectImpl (Thread &thread, CompilerType &return_compiler_type) const
 {
     ValueObjectSP return_valobj_sp;
     Value value;
@@ -870,16 +866,16 @@ ABIMacOSX_arm64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_
     if (exe_ctx.GetTargetPtr() == NULL || exe_ctx.GetProcessPtr() == NULL)
         return return_valobj_sp;
 
-    //value.SetContext (Value::eContextTypeClangType, return_clang_type);
-    value.SetClangType(return_clang_type);
+    //value.SetContext (Value::eContextTypeClangType, return_compiler_type);
+    value.SetCompilerType(return_compiler_type);
     
     RegisterContext *reg_ctx = thread.GetRegisterContext().get();
     if (!reg_ctx)
         return return_valobj_sp;
     
-    const size_t byte_size = return_clang_type.GetByteSize(nullptr);
+    const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
 
-    const uint32_t type_flags = return_clang_type.GetTypeInfo (NULL);
+    const uint32_t type_flags = return_compiler_type.GetTypeInfo (NULL);
     if (type_flags & eTypeIsScalar ||
         type_flags & eTypeIsPointer)
     {
@@ -926,7 +922,7 @@ ABIMacOSX_arm64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_
                                                                     exe_ctx.GetProcessRef().GetAddressByteSize());
                                                 
                                                 return_valobj_sp = ValueObjectConstResult::Create (&thread,
-                                                                                                   return_clang_type,
+                                                                                                   return_compiler_type,
                                                                                                    ConstString(""),
                                                                                                    data);
                                                 return return_valobj_sp;
@@ -1043,7 +1039,7 @@ ABIMacOSX_arm64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_
                                                 byte_order,
                                                 exe_ctx.GetProcessRef().GetAddressByteSize());
                             return_valobj_sp = ValueObjectConstResult::Create (&thread,
-                                                                               return_clang_type,
+                                                                               return_compiler_type,
                                                                                ConstString(""),
                                                                                data);
                         }
@@ -1060,10 +1056,10 @@ ABIMacOSX_arm64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_
         uint32_t NGRN = 0;  // Search ABI docs for NGRN
         uint32_t NSRN = 0;  // Search ABI docs for NSRN
         const bool is_return_value = true;
-        if (LoadValueFromConsecutiveGPRRegisters (exe_ctx, reg_ctx, return_clang_type, is_return_value, NGRN, NSRN, data))
+        if (LoadValueFromConsecutiveGPRRegisters (exe_ctx, reg_ctx, return_compiler_type, is_return_value, NGRN, NSRN, data))
         {
             return_valobj_sp = ValueObjectConstResult::Create (&thread,
-                                                               return_clang_type,
+                                                               return_compiler_type,
                                                                ConstString(""),
                                                                data);            
         }
@@ -1095,12 +1091,6 @@ ABIMacOSX_arm64::GetPluginNameStatic()
     return g_plugin_name;
 }
 
-const char *
-ABIMacOSX_arm64::GetShortPluginName()
-{
-    return pluginShort;
-}
-
 uint32_t
 ABIMacOSX_arm64::GetPluginVersion()
 {
diff --git a/source/Plugins/ABI/MacOSX-arm64/ABIMacOSX_arm64.h b/source/Plugins/ABI/MacOSX-arm64/ABIMacOSX_arm64.h
index 6cce6a6f11741..1bc94f61c2f14 100644
--- a/source/Plugins/ABI/MacOSX-arm64/ABIMacOSX_arm64.h
+++ b/source/Plugins/ABI/MacOSX-arm64/ABIMacOSX_arm64.h
@@ -22,30 +22,30 @@ class ABIMacOSX_arm64 :
     public lldb_private::ABI
 {
 public:
-    ~ABIMacOSX_arm64() { }
+    ~ABIMacOSX_arm64() override = default;
     
-    virtual size_t 
-    GetRedZoneSize () const;
+    size_t
+    GetRedZoneSize() const override;
     
-    virtual bool
-    PrepareTrivialCall (lldb_private::Thread &thread,
-                        lldb::addr_t sp,
-                        lldb::addr_t functionAddress,
-                        lldb::addr_t returnAddress,
-                        llvm::ArrayRef<lldb::addr_t> args) const;
+    bool
+    PrepareTrivialCall(lldb_private::Thread &thread,
+                       lldb::addr_t sp,
+                       lldb::addr_t functionAddress,
+                       lldb::addr_t returnAddress,
+                       llvm::ArrayRef<lldb::addr_t> args) const override;
 
-    virtual bool
-    GetArgumentValues (lldb_private::Thread &thread,
-                       lldb_private::ValueList &values) const;
+    bool
+    GetArgumentValues(lldb_private::Thread &thread,
+                      lldb_private::ValueList &values) const override;
     
-    virtual bool
-    CreateFunctionEntryUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
     
-    virtual bool
-    CreateDefaultUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
     
-    virtual bool
-    RegisterIsVolatile (const lldb_private::RegisterInfo *reg_info);
+    bool
+    RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
 
     // The arm64 ABI requires that stack frames be 16 byte aligned.
     // When there is a trap handler on the stack, e.g. _sigtramp in userland
@@ -57,9 +57,8 @@ public:
     // Whitelisting the trap handlers for user space would be easy (_sigtramp) but
     // in other environments there can be a large number of different functions
     // involved in async traps.
-
-    virtual bool
-    CallFrameAddressIsValid (lldb::addr_t cfa)
+    bool
+    CallFrameAddressIsValid(lldb::addr_t cfa) override
     {
         // Make sure the stack call frame addresses are are 8 byte aligned
         if (cfa & (8ull - 1ull))
@@ -69,8 +68,8 @@ public:
         return true;
     }
     
-    virtual bool
-    CodeAddressIsValid (lldb::addr_t pc)
+    bool
+    CodeAddressIsValid(lldb::addr_t pc) override
     {
         if (pc & (4ull - 1ull))
             return false;   // Not 4 byte aligned
@@ -79,12 +78,13 @@ public:
         return true;
     }
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoArray (uint32_t &count);
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoArray(uint32_t &count) override;
 
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
+
     static void
     Initialize();
     
@@ -97,28 +97,26 @@ public:
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
+
     static lldb_private::ConstString
     GetPluginNameStatic();
 
-    virtual lldb_private::ConstString
-    GetPluginName()
+    lldb_private::ConstString
+    GetPluginName() override
     {
         return GetPluginNameStatic();
     }
 
-    virtual const char *
-    GetShortPluginName();
-    
-    virtual uint32_t
-    GetPluginVersion();
+    uint32_t
+    GetPluginVersion() override;
     
-    virtual lldb_private::Error
-    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value);
+    lldb_private::Error
+    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value) override;
 
 protected:
-    virtual lldb::ValueObjectSP
+    lldb::ValueObjectSP
     GetReturnValueObjectImpl (lldb_private::Thread &thread,
-                    lldb_private::ClangASTType &ast_type) const;
+                    lldb_private::CompilerType &ast_type) const override;
 
 private:
     ABIMacOSX_arm64() : 
@@ -128,4 +126,4 @@ private:
     } 
 };
 
-#endif  // liblldb_ABI_h_
+#endif // liblldb_ABIMacOSX_arm64_h_
diff --git a/source/Plugins/ABI/MacOSX-i386/ABIMacOSX_i386.cpp b/source/Plugins/ABI/MacOSX-i386/ABIMacOSX_i386.cpp
index 4204d18769b89..75e5fb1558e62 100644
--- a/source/Plugins/ABI/MacOSX-i386/ABIMacOSX_i386.cpp
+++ b/source/Plugins/ABI/MacOSX-i386/ABIMacOSX_i386.cpp
@@ -16,13 +16,13 @@
 #include "lldb/Core/RegisterValue.h"
 #include "lldb/Core/Scalar.h"
 #include "lldb/Core/ValueObjectConstResult.h"
-#include "lldb/Symbol/ClangASTContext.h"
 #include "lldb/Symbol/UnwindPlan.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/RegisterContext.h"
 #include "lldb/Target/Target.h"
 #include "lldb/Target/Thread.h"
 
+#include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/Triple.h"
 
 #include <vector>
@@ -32,16 +32,16 @@ using namespace lldb_private;
 
 enum
 {
-    gcc_eax = 0,
-    gcc_ecx,
-    gcc_edx,
-    gcc_ebx,
-    gcc_ebp,
-    gcc_esp,
-    gcc_esi,
-    gcc_edi,
-    gcc_eip,
-    gcc_eflags
+    ehframe_eax = 0,
+    ehframe_ecx,
+    ehframe_edx,
+    ehframe_ebx,
+    ehframe_ebp,   // Different from DWARF the regnums - eh_frame esp/ebp had their regnums switched on i386 darwin
+    ehframe_esp,   // Different from DWARF the regnums - eh_frame esp/ebp had their regnums switched on i386 darwin
+    ehframe_esi,
+    ehframe_edi,
+    ehframe_eip,
+    ehframe_eflags
 };
 
 enum
@@ -82,121 +82,60 @@ enum
     dwarf_ymm7 = dwarf_xmm7
 };
 
-enum
-{
-    gdb_eax        =  0,
-    gdb_ecx        =  1,
-    gdb_edx        =  2,
-    gdb_ebx        =  3,
-    gdb_esp        =  4,
-    gdb_ebp        =  5,
-    gdb_esi        =  6,
-    gdb_edi        =  7,
-    gdb_eip        =  8,
-    gdb_eflags     =  9,
-    gdb_cs         = 10,
-    gdb_ss         = 11,
-    gdb_ds         = 12,
-    gdb_es         = 13,
-    gdb_fs         = 14,
-    gdb_gs         = 15,
-    gdb_stmm0      = 16,
-    gdb_stmm1      = 17,
-    gdb_stmm2      = 18,
-    gdb_stmm3      = 19,
-    gdb_stmm4      = 20,
-    gdb_stmm5      = 21,
-    gdb_stmm6      = 22,
-    gdb_stmm7      = 23,
-    gdb_fctrl      = 24,    gdb_fcw     = gdb_fctrl,
-    gdb_fstat      = 25,    gdb_fsw     = gdb_fstat,
-    gdb_ftag       = 26,    gdb_ftw     = gdb_ftag,
-    gdb_fiseg      = 27,    gdb_fpu_cs  = gdb_fiseg,
-    gdb_fioff      = 28,    gdb_ip      = gdb_fioff,
-    gdb_foseg      = 29,    gdb_fpu_ds  = gdb_foseg,
-    gdb_fooff      = 30,    gdb_dp      = gdb_fooff,
-    gdb_fop        = 31,
-    gdb_xmm0       = 32,
-    gdb_xmm1       = 33,
-    gdb_xmm2       = 34,
-    gdb_xmm3       = 35,
-    gdb_xmm4       = 36,
-    gdb_xmm5       = 37,
-    gdb_xmm6       = 38,
-    gdb_xmm7       = 39,
-    gdb_mxcsr      = 40,
-    gdb_mm0        = 41,
-    gdb_mm1        = 42,
-    gdb_mm2        = 43,
-    gdb_mm3        = 44,
-    gdb_mm4        = 45,
-    gdb_mm5        = 46,
-    gdb_mm6        = 47,
-    gdb_mm7        = 48,
-    gdb_ymm0       = gdb_xmm0,
-    gdb_ymm1       = gdb_xmm1,
-    gdb_ymm2       = gdb_xmm2,
-    gdb_ymm3       = gdb_xmm3,
-    gdb_ymm4       = gdb_xmm4,
-    gdb_ymm5       = gdb_xmm5,
-    gdb_ymm6       = gdb_xmm6,
-    gdb_ymm7       = gdb_xmm7
-};
-
 
 static RegisterInfo g_register_infos[] = 
 {
-  //  NAME      ALT      SZ OFF ENCODING         FORMAT                COMPILER              DWARF                 GENERIC                      GDB                   LLDB NATIVE            VALUE REGS    INVALIDATE REGS
+  //  NAME      ALT      SZ OFF ENCODING         FORMAT                EH_FRAME              DWARF                 GENERIC                      PROCESS PLUGIN        LLDB NATIVE            VALUE REGS    INVALIDATE REGS
   //  ======    =======  == === =============    ============          ===================== ===================== ============================ ====================  ====================== ==========    ===============
-    { "eax",    NULL,    4,  0, eEncodingUint  , eFormatHex          , { gcc_eax             , dwarf_eax           , LLDB_INVALID_REGNUM       , gdb_eax            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ebx"   , NULL,    4,  0, eEncodingUint  , eFormatHex          , { gcc_ebx             , dwarf_ebx           , LLDB_INVALID_REGNUM       , gdb_ebx            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ecx"   , NULL,    4,  0, eEncodingUint  , eFormatHex          , { gcc_ecx             , dwarf_ecx           , LLDB_REGNUM_GENERIC_ARG4  , gdb_ecx            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "edx"   , NULL,    4,  0, eEncodingUint  , eFormatHex          , { gcc_edx             , dwarf_edx           , LLDB_REGNUM_GENERIC_ARG3  , gdb_edx            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "esi"   , NULL,    4,  0, eEncodingUint  , eFormatHex          , { gcc_esi             , dwarf_esi           , LLDB_REGNUM_GENERIC_ARG2  , gdb_esi            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "edi"   , NULL,    4,  0, eEncodingUint  , eFormatHex          , { gcc_edi             , dwarf_edi           , LLDB_REGNUM_GENERIC_ARG1  , gdb_edi            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ebp"   , "fp",    4,  0, eEncodingUint  , eFormatHex          , { gcc_ebp             , dwarf_ebp           , LLDB_REGNUM_GENERIC_FP    , gdb_ebp            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "esp"   , "sp",    4,  0, eEncodingUint  , eFormatHex          , { gcc_esp             , dwarf_esp           , LLDB_REGNUM_GENERIC_SP    , gdb_esp            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "eip"   , "pc",    4,  0, eEncodingUint  , eFormatHex          , { gcc_eip             , dwarf_eip           , LLDB_REGNUM_GENERIC_PC    , gdb_eip            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "eflags", NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_REGNUM_GENERIC_FLAGS , gdb_eflags         , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "cs"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_cs             , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ss"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_ss             , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ds"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_ds             , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "es"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_es             , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "fs"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_fs             , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "gs"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_gs             , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm0" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm0         , LLDB_INVALID_REGNUM       , gdb_stmm0          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm1" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm1         , LLDB_INVALID_REGNUM       , gdb_stmm1          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm2" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm2         , LLDB_INVALID_REGNUM       , gdb_stmm2          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm3" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm3         , LLDB_INVALID_REGNUM       , gdb_stmm3          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm4" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm4         , LLDB_INVALID_REGNUM       , gdb_stmm4          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm5" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm5         , LLDB_INVALID_REGNUM       , gdb_stmm5          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm6" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm6         , LLDB_INVALID_REGNUM       , gdb_stmm6          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm7" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm7         , LLDB_INVALID_REGNUM       , gdb_stmm7          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "fctrl" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_fctrl          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "fstat" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_fstat          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ftag"  , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_ftag           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "fiseg" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_fiseg          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "fioff" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_fioff          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "foseg" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_foseg          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "fooff" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_fooff          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "fop"   , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_fop            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm0"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm0          , LLDB_INVALID_REGNUM       , gdb_xmm0           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm1"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm1          , LLDB_INVALID_REGNUM       , gdb_xmm1           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm2"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm2          , LLDB_INVALID_REGNUM       , gdb_xmm2           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm3"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm3          , LLDB_INVALID_REGNUM       , gdb_xmm3           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm4"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm4          , LLDB_INVALID_REGNUM       , gdb_xmm4           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm5"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm5          , LLDB_INVALID_REGNUM       , gdb_xmm5           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm6"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm6          , LLDB_INVALID_REGNUM       , gdb_xmm6           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm7"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm7          , LLDB_INVALID_REGNUM       , gdb_xmm7           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "mxcsr" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_mxcsr          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm0"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm0          , LLDB_INVALID_REGNUM       , gdb_ymm0           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm1"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm1          , LLDB_INVALID_REGNUM       , gdb_ymm1           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm2"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm2          , LLDB_INVALID_REGNUM       , gdb_ymm2           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm3"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm3          , LLDB_INVALID_REGNUM       , gdb_ymm3           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm4"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm4          , LLDB_INVALID_REGNUM       , gdb_ymm4           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm5"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm5          , LLDB_INVALID_REGNUM       , gdb_ymm5           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm6"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm6          , LLDB_INVALID_REGNUM       , gdb_ymm6           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm7"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm7          , LLDB_INVALID_REGNUM       , gdb_ymm7           , LLDB_INVALID_REGNUM },      NULL,              NULL}
+    { "eax",    NULL,    4,  0, eEncodingUint  , eFormatHex          , { ehframe_eax         , dwarf_eax           , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ebx"   , NULL,    4,  0, eEncodingUint  , eFormatHex          , { ehframe_ebx         , dwarf_ebx           , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ecx"   , NULL,    4,  0, eEncodingUint  , eFormatHex          , { ehframe_ecx         , dwarf_ecx           , LLDB_REGNUM_GENERIC_ARG4  , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "edx"   , NULL,    4,  0, eEncodingUint  , eFormatHex          , { ehframe_edx         , dwarf_edx           , LLDB_REGNUM_GENERIC_ARG3  , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "esi"   , NULL,    4,  0, eEncodingUint  , eFormatHex          , { ehframe_esi         , dwarf_esi           , LLDB_REGNUM_GENERIC_ARG2  , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "edi"   , NULL,    4,  0, eEncodingUint  , eFormatHex          , { ehframe_edi         , dwarf_edi           , LLDB_REGNUM_GENERIC_ARG1  , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ebp"   , "fp",    4,  0, eEncodingUint  , eFormatHex          , { ehframe_ebp         , dwarf_ebp           , LLDB_REGNUM_GENERIC_FP    , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "esp"   , "sp",    4,  0, eEncodingUint  , eFormatHex          , { ehframe_esp         , dwarf_esp           , LLDB_REGNUM_GENERIC_SP    , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "eip"   , "pc",    4,  0, eEncodingUint  , eFormatHex          , { ehframe_eip         , dwarf_eip           , LLDB_REGNUM_GENERIC_PC    , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "eflags", NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_REGNUM_GENERIC_FLAGS , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "cs"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ss"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ds"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "es"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "fs"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "gs"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm0" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm0         , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm1" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm1         , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm2" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm2         , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm3" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm3         , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm4" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm4         , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm5" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm5         , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm6" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm6         , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm7" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_stmm7         , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "fctrl" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "fstat" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ftag"  , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "fiseg" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "fioff" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "foseg" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "fooff" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "fop"   , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm0"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm0          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm1"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm1          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm2"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm2          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm3"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm3          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm4"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm4          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm5"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm5          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm6"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm6          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm7"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_xmm7          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "mxcsr" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm0"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm0          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm1"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm1          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm2"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm2          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm3"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm3          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm4"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm4          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm5"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm5          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm6"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm6          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm7"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , dwarf_ymm7          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL}
 };
 
 static const uint32_t k_num_register_infos = llvm::array_lengthof(g_register_infos);
@@ -237,7 +176,7 @@ ABIMacOSX_i386::CreateInstance (const ArchSpec &arch)
 {
     static ABISP g_abi_sp;
      if ((arch.GetTriple().getArch() == llvm::Triple::x86) &&
-          (arch.GetTriple().isMacOSX() || arch.GetTriple().isiOS()))
+          (arch.GetTriple().isMacOSX() || arch.GetTriple().isiOS() || arch.GetTriple().isWatchOS()))
      {
         if (!g_abi_sp)
             g_abi_sp.reset (new ABIMacOSX_i386);
@@ -316,184 +255,6 @@ ABIMacOSX_i386::PrepareTrivialCall (Thread &thread,
     return true;
 }
 
-bool
-ABIMacOSX_i386::PrepareNormalCall (Thread &thread,
-                                   addr_t sp,
-                                   addr_t func_addr,
-                                   addr_t return_addr,
-                                   ValueList &args) const
-{
-    ExecutionContext exe_ctx (thread.shared_from_this());
-    RegisterContext *reg_ctx = thread.GetRegisterContext().get();
-    if (!reg_ctx)
-        return false;
-    
-    Process *process = exe_ctx.GetProcessPtr();
-    Error error;
-    uint32_t fp_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_FP);
-    uint32_t pc_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC);
-    uint32_t sp_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP);
-    
-    // Do the argument layout
-    
-    std::vector <uint32_t> argLayout;   // 4-byte chunks, as discussed in the ABI Function Call Guide
-    
-    size_t numArgs = args.GetSize();
-    size_t index;
-    
-    for (index = 0; index < numArgs; ++index)
-    {
-        Value *val = args.GetValueAtIndex(index);
-        
-        if (!val)
-            return false;
-        
-        switch (val->GetValueType())
-        {
-        case Value::eValueTypeScalar:
-            {
-                Scalar &scalar = val->GetScalar();
-                switch (scalar.GetType())
-                {
-                case Scalar::e_void:
-                    return false;
-                case Scalar::e_sint: 
-                case Scalar::e_uint:
-                case Scalar::e_slong:
-                case Scalar::e_ulong:
-                case Scalar::e_slonglong:
-                case Scalar::e_ulonglong:
-                    {
-                        uint64_t data = scalar.ULongLong();
-                        
-                        switch (scalar.GetByteSize())
-                        {
-                        default:
-                            return false;
-                        case 1:
-                            argLayout.push_back((uint32_t)(data & 0xffull));
-                            break;
-                        case 2:
-                            argLayout.push_back((uint32_t)(data & 0xffffull));
-                            break;
-                        case 4:
-                            argLayout.push_back((uint32_t)(data & 0xffffffffull));
-                            break;
-                        case 8:
-                            argLayout.push_back((uint32_t)(data & 0xffffffffull));
-                            argLayout.push_back((uint32_t)(data >> 32));
-                            break;
-                        }
-                    }
-                    break;
-                case Scalar::e_float:
-                    {
-                        float data = scalar.Float();
-                        uint32_t dataRaw = *((uint32_t*)(&data));
-                        argLayout.push_back(dataRaw);
-                    }
-                    break;
-                case Scalar::e_double:
-                    {
-                        double data = scalar.Double();
-                        uint32_t *dataRaw = ((uint32_t*)(&data));
-                        argLayout.push_back(dataRaw[0]);
-                        argLayout.push_back(dataRaw[1]);
-                    }
-                    break;
-                case Scalar::e_long_double:
-                    {
-                        long double data = scalar.Double();
-                        uint32_t *dataRaw = ((uint32_t*)(&data));
-                        while ((argLayout.size() * 4) & 0xf)
-                            argLayout.push_back(0);
-                        argLayout.push_back(dataRaw[0]);
-                        argLayout.push_back(dataRaw[1]);
-                        argLayout.push_back(dataRaw[2]);
-                        argLayout.push_back(dataRaw[3]);
-                    }
-                    break;
-                }
-            }
-            break;
-        case Value::eValueTypeHostAddress:
-            {
-                ClangASTType clang_type (val->GetClangType());
-                if (clang_type)
-                {
-                    uint32_t cstr_length = 0;
-                    if (clang_type.IsCStringType (cstr_length))
-                    {
-                        const char *cstr = (const char*)val->GetScalar().ULongLong();
-                        cstr_length = strlen(cstr);
-                        
-                        // Push the string onto the stack immediately.
-                        
-                        sp -= (cstr_length + 1);
-                        
-                        if (process->WriteMemory(sp, cstr, cstr_length + 1, error) != (cstr_length + 1))
-                            return false;
-                        
-                        // Put the address of the string into the argument array.
-                        
-                        argLayout.push_back((uint32_t)(sp & 0xffffffff));
-                    }
-                    else
-                    {
-                        return false;
-                    }
-                }
-                break;
-            }
-            break;
-        case Value::eValueTypeFileAddress:
-        case Value::eValueTypeLoadAddress:
-        default:
-            return false;
-        }
-    }
-    
-    // Make room for the arguments on the stack
-    
-    sp -= 4 * argLayout.size();
-    
-    // Align the SP
-    
-    sp &= ~(16ull-1ull); // 16-byte alignment
-    
-    // Write the arguments on the stack
-    
-    size_t numChunks = argLayout.size();
-
-    for (index = 0; index < numChunks; ++index)
-        if (process->WriteMemory(sp + (index * 4), &argLayout[index], sizeof(uint32_t), error) != sizeof(uint32_t))
-            return false;
-    
-    // The return address is pushed onto the stack.
-    
-    sp -= 4;
-    uint32_t returnAddressU32 = return_addr;
-    if (process->WriteMemory (sp, &returnAddressU32, sizeof(returnAddressU32), error) != sizeof(returnAddressU32))
-        return false;
-    
-    // %esp is set to the actual stack value.
-    
-    if (!reg_ctx->WriteRegisterFromUnsigned(sp_reg_num, sp))
-        return false;
-    
-    // %ebp is set to a fake value, in our case 0x0x00000000
-    
-    if (!reg_ctx->WriteRegisterFromUnsigned(fp_reg_num, 0x00000000))
-        return false;
-    
-    // %eip is set to the address of the called function.
-    
-    if (!reg_ctx->WriteRegisterFromUnsigned(pc_reg_num, func_addr))
-        return false;
-    
-    return true;    
-}
-
 static bool 
 ReadIntegerArgument (Scalar           &scalar,
                      unsigned int     bit_width,
@@ -545,23 +306,23 @@ ABIMacOSX_i386::GetArgumentValues (Thread &thread,
         
         // We currently only support extracting values with Clang QualTypes.
         // Do we care about others?
-        ClangASTType clang_type (value->GetClangType());
-        if (clang_type)
+        CompilerType compiler_type (value->GetCompilerType());
+        if (compiler_type)
         {
             bool is_signed;
             
-            if (clang_type.IsIntegerType (is_signed))
+            if (compiler_type.IsIntegerType (is_signed))
             {
                 ReadIntegerArgument(value->GetScalar(),
-                                    clang_type.GetBitSize(&thread),
+                                    compiler_type.GetBitSize(&thread),
                                     is_signed,
                                     thread.GetProcess().get(), 
                                     current_stack_argument);
             }
-            else if (clang_type.IsPointerType())
+            else if (compiler_type.IsPointerType())
             {
                 ReadIntegerArgument(value->GetScalar(),
-                                    clang_type.GetBitSize(&thread),
+                                    compiler_type.GetBitSize(&thread),
                                     false,
                                     thread.GetProcess().get(),
                                     current_stack_argument);
@@ -582,8 +343,8 @@ ABIMacOSX_i386::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueOb
         return error;
     }
     
-    ClangASTType clang_type = new_value_sp->GetClangType();
-    if (!clang_type)
+    CompilerType compiler_type = new_value_sp->GetCompilerType();
+    if (!compiler_type)
     {
         error.SetErrorString ("Null clang type for return value.");
         return error;
@@ -598,7 +359,7 @@ ABIMacOSX_i386::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueOb
     RegisterContext *reg_ctx = thread->GetRegisterContext().get();
 
     bool set_it_simple = false;
-    if (clang_type.IsIntegerType (is_signed) || clang_type.IsPointerType())
+    if (compiler_type.IsIntegerType (is_signed) || compiler_type.IsPointerType())
     {
         DataExtractor data;
         Error data_error;
@@ -638,7 +399,7 @@ ABIMacOSX_i386::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueOb
             error.SetErrorString("We don't support returning longer than 64 bit integer values at present.");
         }
     }
-    else if (clang_type.IsFloatingPointType (count, is_complex))
+    else if (compiler_type.IsFloatingPointType (count, is_complex))
     {
         if (is_complex)
             error.SetErrorString ("We don't support returning complex values at present");
@@ -654,16 +415,16 @@ ABIMacOSX_i386::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueOb
 
 ValueObjectSP
 ABIMacOSX_i386::GetReturnValueObjectImpl (Thread &thread,
-                                          ClangASTType &clang_type) const
+                                          CompilerType &compiler_type) const
 {
     Value value;
     ValueObjectSP return_valobj_sp;
     
-    if (!clang_type)
+    if (!compiler_type)
         return return_valobj_sp;
     
-    //value.SetContext (Value::eContextTypeClangType, clang_type.GetOpaqueQualType());
-    value.SetClangType (clang_type);
+    //value.SetContext (Value::eContextTypeClangType, compiler_type.GetOpaqueQualType());
+    value.SetCompilerType (compiler_type);
     
     RegisterContext *reg_ctx = thread.GetRegisterContext().get();
         if (!reg_ctx)
@@ -671,9 +432,9 @@ ABIMacOSX_i386::GetReturnValueObjectImpl (Thread &thread,
         
     bool is_signed;
             
-    if (clang_type.IsIntegerType (is_signed))
+    if (compiler_type.IsIntegerType (is_signed))
     {
-        size_t bit_width = clang_type.GetBitSize(&thread);
+        size_t bit_width = compiler_type.GetBitSize(&thread);
         
         unsigned eax_id = reg_ctx->GetRegisterInfoByName("eax", 0)->kinds[eRegisterKindLLDB];
         unsigned edx_id = reg_ctx->GetRegisterInfoByName("edx", 0)->kinds[eRegisterKindLLDB];
@@ -713,7 +474,7 @@ ABIMacOSX_i386::GetReturnValueObjectImpl (Thread &thread,
                 break;
         }
     }
-    else if (clang_type.IsPointerType ())
+    else if (compiler_type.IsPointerType ())
     {
         unsigned eax_id = reg_ctx->GetRegisterInfoByName("eax", 0)->kinds[eRegisterKindLLDB];
         uint32_t ptr = thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xffffffff;
diff --git a/source/Plugins/ABI/MacOSX-i386/ABIMacOSX_i386.h b/source/Plugins/ABI/MacOSX-i386/ABIMacOSX_i386.h
index d81b7a7e684b0..6a82fce35bf76 100644
--- a/source/Plugins/ABI/MacOSX-i386/ABIMacOSX_i386.h
+++ b/source/Plugins/ABI/MacOSX-i386/ABIMacOSX_i386.h
@@ -22,48 +22,33 @@ class ABIMacOSX_i386 :
     public lldb_private::ABI
 {
 public:
-
-    ~ABIMacOSX_i386() { }
-    
-    virtual size_t 
-    GetRedZoneSize () const;
+    ~ABIMacOSX_i386() override = default;
     
-    virtual bool
-    PrepareTrivialCall (lldb_private::Thread &thread, 
-                        lldb::addr_t sp,
-                        lldb::addr_t func_addr,
-                        lldb::addr_t return_addr, 
-                        llvm::ArrayRef<lldb::addr_t> args) const;
+    size_t 
+    GetRedZoneSize() const override;
     
-    virtual bool
-    PrepareNormalCall (lldb_private::Thread &thread,
+    bool
+    PrepareTrivialCall(lldb_private::Thread &thread,
                        lldb::addr_t sp,
                        lldb::addr_t func_addr,
                        lldb::addr_t return_addr,
-                       lldb_private::ValueList &args) const;
+                       llvm::ArrayRef<lldb::addr_t> args) const override;
     
-    virtual bool
-    GetArgumentValues (lldb_private::Thread &thread,
-                       lldb_private::ValueList &values) const;
+    bool
+    GetArgumentValues(lldb_private::Thread &thread,
+                      lldb_private::ValueList &values) const override;
     
-    virtual lldb_private::Error
-    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value);
+    lldb_private::Error
+    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value) override;
 
-protected:
-    virtual lldb::ValueObjectSP
-    GetReturnValueObjectImpl (lldb_private::Thread &thread,
-                    lldb_private::ClangASTType &ast_type) const;
-
-public:
-
-    virtual bool
-    CreateFunctionEntryUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
     
-    virtual bool
-    CreateDefaultUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
     
-    virtual bool
-    RegisterIsVolatile (const lldb_private::RegisterInfo *reg_info);
+    bool
+    RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
 
     // The Darwin i386 ABI requires that stack frames be 16 byte aligned.
     // When there is a trap handler on the stack, e.g. _sigtramp in userland
@@ -78,8 +63,8 @@ public:
     //
     // If we were to enforce 16-byte alignment, we also need to relax to 4-byte
     // alignment for non-darwin i386 targets.
-    virtual bool
-    CallFrameAddressIsValid (lldb::addr_t cfa)
+    bool
+    CallFrameAddressIsValid(lldb::addr_t cfa) override
     {
         // Make sure the stack call frame addresses are are 4 byte aligned
         if (cfa & (4ull - 1ull))
@@ -89,19 +74,20 @@ public:
         return true;
     }
 
-    virtual bool
-    CodeAddressIsValid (lldb::addr_t pc)
+    bool
+    CodeAddressIsValid(lldb::addr_t pc) override
     {
         // Just make sure the address is a valid 32 bit address. 
         return pc <= UINT32_MAX;
     }
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoArray (uint32_t &count);
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoArray(uint32_t &count) override;
 
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
+
     static void
     Initialize();
     
@@ -114,22 +100,30 @@ public:
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
+
     static lldb_private::ConstString
     GetPluginNameStatic ();
 
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
     
-    virtual uint32_t
-    GetPluginVersion();
+    uint32_t
+    GetPluginVersion() override;
     
 protected:
+    lldb::ValueObjectSP
+    GetReturnValueObjectImpl(lldb_private::Thread &thread,
+                             lldb_private::CompilerType &ast_type) const override;
+
     bool
     RegisterIsCalleeSaved (const lldb_private::RegisterInfo *reg_info);
 
 private:
-    ABIMacOSX_i386() : lldb_private::ABI() { } // Call CreateInstance instead.
+    ABIMacOSX_i386() : 
+        lldb_private::ABI() 
+    {
+        // Call CreateInstance instead.  
+    } 
 };
 
-
-#endif  // liblldb_ABI_h_
+#endif // liblldb_ABIMacOSX_i386_h_
diff --git a/source/Plugins/ABI/SysV-arm/ABISysV_arm.cpp b/source/Plugins/ABI/SysV-arm/ABISysV_arm.cpp
index 50a9863d83e74..ef625dece2656 100644
--- a/source/Plugins/ABI/SysV-arm/ABISysV_arm.cpp
+++ b/source/Plugins/ABI/SysV-arm/ABISysV_arm.cpp
@@ -17,7 +17,6 @@
 #include "lldb/Core/Scalar.h"
 #include "lldb/Core/Value.h"
 #include "lldb/Core/ValueObjectConstResult.h"
-#include "lldb/Symbol/ClangASTContext.h"
 #include "lldb/Symbol/UnwindPlan.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/RegisterContext.h"
@@ -28,7 +27,7 @@
 #include "llvm/ADT/Triple.h"
 
 #include "Utility/ARM_DWARF_Registers.h"
-#include "Utility/ARM_GCC_Registers.h"
+#include "Utility/ARM_ehframe_Registers.h"
 #include "Plugins/Process/Utility/ARMDefines.h"
 
 #include <vector>
@@ -38,90 +37,90 @@ using namespace lldb_private;
 
 static RegisterInfo g_register_infos[] =
 {
-    //  NAME       ALT       SZ OFF ENCODING         FORMAT          COMPILER                DWARF               GENERIC                     GDB                     LLDB NATIVE            VALUE REGS    INVALIDATE REGS
+    //  NAME       ALT       SZ OFF ENCODING         FORMAT          EH_FRAME                DWARF               GENERIC                     PROCESS PLUGIN          LLDB NATIVE            VALUE REGS    INVALIDATE REGS
     //  ========== =======   == === =============    ============    ======================= =================== =========================== ======================= ====================== ==========    ===============
-    {   "r0",      "arg1",    4, 0, eEncodingUint    , eFormatHex,   { gcc_r0,               dwarf_r0,           LLDB_REGNUM_GENERIC_ARG1,   gdb_arm_r0,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r1",      "arg2",    4, 0, eEncodingUint    , eFormatHex,   { gcc_r1,               dwarf_r1,           LLDB_REGNUM_GENERIC_ARG2,   gdb_arm_r1,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r2",      "arg3",    4, 0, eEncodingUint    , eFormatHex,   { gcc_r2,               dwarf_r2,           LLDB_REGNUM_GENERIC_ARG3,   gdb_arm_r2,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r3",      "arg4",    4, 0, eEncodingUint    , eFormatHex,   { gcc_r3,               dwarf_r3,           LLDB_REGNUM_GENERIC_ARG4,   gdb_arm_r3,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r4",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r4,               dwarf_r4,           LLDB_INVALID_REGNUM,        gdb_arm_r4,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r5",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r5,               dwarf_r5,           LLDB_INVALID_REGNUM,        gdb_arm_r5,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r6",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r6,               dwarf_r6,           LLDB_INVALID_REGNUM,        gdb_arm_r6,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r7",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r7,               dwarf_r7,           LLDB_REGNUM_GENERIC_FP,     gdb_arm_r7,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r8",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r8,               dwarf_r8,           LLDB_INVALID_REGNUM,        gdb_arm_r8,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r9",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r9,               dwarf_r9,           LLDB_INVALID_REGNUM,        gdb_arm_r9,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r10",     NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r10,              dwarf_r10,          LLDB_INVALID_REGNUM,        gdb_arm_r10,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r11",     NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r11,              dwarf_r11,          LLDB_INVALID_REGNUM,        gdb_arm_r11,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "r12",     NULL,      4, 0, eEncodingUint    , eFormatHex,   { gcc_r12,              dwarf_r12,          LLDB_INVALID_REGNUM,        gdb_arm_r12,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "sp",      "r13",     4, 0, eEncodingUint    , eFormatHex,   { gcc_sp,               dwarf_sp,           LLDB_REGNUM_GENERIC_SP,     gdb_arm_sp,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "lr",      "r14",     4, 0, eEncodingUint    , eFormatHex,   { gcc_lr,               dwarf_lr,           LLDB_REGNUM_GENERIC_RA,     gdb_arm_lr,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "pc",      "r15",     4, 0, eEncodingUint    , eFormatHex,   { gcc_pc,               dwarf_pc,           LLDB_REGNUM_GENERIC_PC,     gdb_arm_pc,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "cpsr",    "psr",     4, 0, eEncodingUint    , eFormatHex,   { gcc_cpsr,             dwarf_cpsr,         LLDB_REGNUM_GENERIC_FLAGS,  gdb_arm_cpsr,           LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s0",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s0,           LLDB_INVALID_REGNUM,        gdb_arm_s0,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s1",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s1,           LLDB_INVALID_REGNUM,        gdb_arm_s1,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s2",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s2,           LLDB_INVALID_REGNUM,        gdb_arm_s2,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s3",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s3,           LLDB_INVALID_REGNUM,        gdb_arm_s3,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s4",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s4,           LLDB_INVALID_REGNUM,        gdb_arm_s4,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s5",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s5,           LLDB_INVALID_REGNUM,        gdb_arm_s5,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s6",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s6,           LLDB_INVALID_REGNUM,        gdb_arm_s6,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s7",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s7,           LLDB_INVALID_REGNUM,        gdb_arm_s7,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s8",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s8,           LLDB_INVALID_REGNUM,        gdb_arm_s8,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s9",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s9,           LLDB_INVALID_REGNUM,        gdb_arm_s9,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s10",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s10,          LLDB_INVALID_REGNUM,        gdb_arm_s10,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s11",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s11,          LLDB_INVALID_REGNUM,        gdb_arm_s11,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s12",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s12,          LLDB_INVALID_REGNUM,        gdb_arm_s12,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s13",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s13,          LLDB_INVALID_REGNUM,        gdb_arm_s13,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s14",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s14,          LLDB_INVALID_REGNUM,        gdb_arm_s14,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s15",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s15,          LLDB_INVALID_REGNUM,        gdb_arm_s15,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s16",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s16,          LLDB_INVALID_REGNUM,        gdb_arm_s16,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s17",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s17,          LLDB_INVALID_REGNUM,        gdb_arm_s17,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s18",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s18,          LLDB_INVALID_REGNUM,        gdb_arm_s18,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s19",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s19,          LLDB_INVALID_REGNUM,        gdb_arm_s19,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s20",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s20,          LLDB_INVALID_REGNUM,        gdb_arm_s20,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s21",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s21,          LLDB_INVALID_REGNUM,        gdb_arm_s21,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s22",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s22,          LLDB_INVALID_REGNUM,        gdb_arm_s22,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s23",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s23,          LLDB_INVALID_REGNUM,        gdb_arm_s23,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s24",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s24,          LLDB_INVALID_REGNUM,        gdb_arm_s24,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s25",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s25,          LLDB_INVALID_REGNUM,        gdb_arm_s25,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s26",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s26,          LLDB_INVALID_REGNUM,        gdb_arm_s26,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s27",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s27,          LLDB_INVALID_REGNUM,        gdb_arm_s27,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s28",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s28,          LLDB_INVALID_REGNUM,        gdb_arm_s28,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s29",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s29,          LLDB_INVALID_REGNUM,        gdb_arm_s29,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s30",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s30,          LLDB_INVALID_REGNUM,        gdb_arm_s30,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "s31",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s31,          LLDB_INVALID_REGNUM,        gdb_arm_s31,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "fpscr",   NULL,      4, 0, eEncodingUint    , eFormatHex  , { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM,        gdb_arm_fpscr,          LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d0",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d0,           LLDB_INVALID_REGNUM,        gdb_arm_d0,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d1",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d1,           LLDB_INVALID_REGNUM,        gdb_arm_d1,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d2",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d2,           LLDB_INVALID_REGNUM,        gdb_arm_d2,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d3",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d3,           LLDB_INVALID_REGNUM,        gdb_arm_d3,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d4",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d4,           LLDB_INVALID_REGNUM,        gdb_arm_d4,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d5",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d5,           LLDB_INVALID_REGNUM,        gdb_arm_d5,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d6",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d6,           LLDB_INVALID_REGNUM,        gdb_arm_d6,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d7",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d7,           LLDB_INVALID_REGNUM,        gdb_arm_d7,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d8",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d8,           LLDB_INVALID_REGNUM,        gdb_arm_d8,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d9",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d9,           LLDB_INVALID_REGNUM,        gdb_arm_d9,             LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d10",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d10,          LLDB_INVALID_REGNUM,        gdb_arm_d10,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d11",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d11,          LLDB_INVALID_REGNUM,        gdb_arm_d11,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d12",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d12,          LLDB_INVALID_REGNUM,        gdb_arm_d12,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d13",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d13,          LLDB_INVALID_REGNUM,        gdb_arm_d13,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d14",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d14,          LLDB_INVALID_REGNUM,        gdb_arm_d14,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d15",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d15,          LLDB_INVALID_REGNUM,        gdb_arm_d15,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d16",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d16,          LLDB_INVALID_REGNUM,        gdb_arm_d16,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d17",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d17,          LLDB_INVALID_REGNUM,        gdb_arm_d17,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d18",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d18,          LLDB_INVALID_REGNUM,        gdb_arm_d18,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d19",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d19,          LLDB_INVALID_REGNUM,        gdb_arm_d19,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d20",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d20,          LLDB_INVALID_REGNUM,        gdb_arm_d20,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d21",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d21,          LLDB_INVALID_REGNUM,        gdb_arm_d21,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d22",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d22,          LLDB_INVALID_REGNUM,        gdb_arm_d22,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d23",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d23,          LLDB_INVALID_REGNUM,        gdb_arm_d23,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d24",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d24,          LLDB_INVALID_REGNUM,        gdb_arm_d24,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d25",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d25,          LLDB_INVALID_REGNUM,        gdb_arm_d25,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d26",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d26,          LLDB_INVALID_REGNUM,        gdb_arm_d26,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d27",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d27,          LLDB_INVALID_REGNUM,        gdb_arm_d27,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d28",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d28,          LLDB_INVALID_REGNUM,        gdb_arm_d28,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d29",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d29,          LLDB_INVALID_REGNUM,        gdb_arm_d29,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d30",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d30,          LLDB_INVALID_REGNUM,        gdb_arm_d30,            LLDB_INVALID_REGNUM },      NULL,              NULL},
-    {   "d31",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d31,          LLDB_INVALID_REGNUM,        gdb_arm_d31,            LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r0",      "arg1",    4, 0, eEncodingUint    , eFormatHex,   { ehframe_r0,           dwarf_r0,           LLDB_REGNUM_GENERIC_ARG1,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r1",      "arg2",    4, 0, eEncodingUint    , eFormatHex,   { ehframe_r1,           dwarf_r1,           LLDB_REGNUM_GENERIC_ARG2,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r2",      "arg3",    4, 0, eEncodingUint    , eFormatHex,   { ehframe_r2,           dwarf_r2,           LLDB_REGNUM_GENERIC_ARG3,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r3",      "arg4",    4, 0, eEncodingUint    , eFormatHex,   { ehframe_r3,           dwarf_r3,           LLDB_REGNUM_GENERIC_ARG4,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r4",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r4,           dwarf_r4,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r5",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r5,           dwarf_r5,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r6",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r6,           dwarf_r6,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r7",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r7,           dwarf_r7,           LLDB_REGNUM_GENERIC_FP,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r8",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r8,           dwarf_r8,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r9",      NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r9,           dwarf_r9,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r10",     NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r10,          dwarf_r10,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r11",     NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r11,          dwarf_r11,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "r12",     NULL,      4, 0, eEncodingUint    , eFormatHex,   { ehframe_r12,          dwarf_r12,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "sp",      "r13",     4, 0, eEncodingUint    , eFormatHex,   { ehframe_sp,           dwarf_sp,           LLDB_REGNUM_GENERIC_SP,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "lr",      "r14",     4, 0, eEncodingUint    , eFormatHex,   { ehframe_lr,           dwarf_lr,           LLDB_REGNUM_GENERIC_RA,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "pc",      "r15",     4, 0, eEncodingUint    , eFormatHex,   { ehframe_pc,           dwarf_pc,           LLDB_REGNUM_GENERIC_PC,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "cpsr",    "psr",     4, 0, eEncodingUint    , eFormatHex,   { ehframe_cpsr,         dwarf_cpsr,         LLDB_REGNUM_GENERIC_FLAGS,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s0",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s0,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s1",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s1,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s2",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s2,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s3",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s3,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s4",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s4,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s5",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s5,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s6",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s6,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s7",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s7,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s8",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s8,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s9",      NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s9,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s10",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s10,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s11",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s11,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s12",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s12,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s13",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s13,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s14",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s14,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s15",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s15,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s16",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s16,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s17",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s17,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s18",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s18,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s19",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s19,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s20",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s20,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s21",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s21,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s22",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s22,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s23",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s23,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s24",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s24,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s25",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s25,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s26",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s26,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s27",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s27,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s28",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s28,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s29",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s29,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s30",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s30,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "s31",     NULL,      4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_s31,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "fpscr",   NULL,      4, 0, eEncodingUint    , eFormatHex  , { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d0",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d0,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d1",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d1,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d2",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d2,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d3",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d3,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d4",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d4,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d5",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d5,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d6",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d6,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d7",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d7,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d8",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d8,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d9",      NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d9,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d10",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d10,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d11",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d11,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d12",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d12,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d13",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d13,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d14",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d14,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d15",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d15,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d16",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d16,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d17",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d17,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d18",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d18,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d19",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d19,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d20",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d20,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d21",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d21,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d22",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d22,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d23",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d23,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d24",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d24,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d25",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d25,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d26",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d26,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d27",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d27,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d28",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d28,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d29",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d29,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d30",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d30,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
+    {   "d31",     NULL,      8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM,  dwarf_d31,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
     {   "r8_usr",  NULL,      4, 0, eEncodingUint    , eFormatHex,   { LLDB_INVALID_REGNUM,  dwarf_r8_usr,       LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
     {   "r9_usr",  NULL,      4, 0, eEncodingUint    , eFormatHex,   { LLDB_INVALID_REGNUM,  dwarf_r9_usr,       LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
     {   "r10_usr", NULL,      4, 0, eEncodingUint    , eFormatHex,   { LLDB_INVALID_REGNUM,  dwarf_r10_usr,      LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },      NULL,              NULL},
@@ -333,18 +332,18 @@ ABISysV_arm::GetArgumentValues (Thread &thread,
         if (!value)
             return false;
         
-        ClangASTType clang_type = value->GetClangType();
-        if (clang_type)
+        CompilerType compiler_type = value->GetCompilerType();
+        if (compiler_type)
         {
             bool is_signed = false;
             size_t bit_width = 0;
-            if (clang_type.IsIntegerType (is_signed))
+            if (compiler_type.IsIntegerType (is_signed))
             {
-                bit_width = clang_type.GetBitSize(&thread);
+                bit_width = compiler_type.GetBitSize(&thread);
             }
-            else if (clang_type.IsPointerOrReferenceType ())
+            else if (compiler_type.IsPointerOrReferenceType ())
             {
-                bit_width = clang_type.GetBitSize(&thread);
+                bit_width = compiler_type.GetBitSize(&thread);
             }
             else
             {
@@ -398,22 +397,35 @@ ABISysV_arm::GetArgumentValues (Thread &thread,
     return true;
 }
 
+static bool
+GetReturnValuePassedInMemory(Thread &thread, RegisterContext* reg_ctx, size_t byte_size, Value& value)
+{
+    Error error;
+    DataBufferHeap buffer(byte_size, 0);
+
+    const RegisterInfo *r0_reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1);
+    uint32_t address = reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX;
+    thread.GetProcess()->ReadMemory(address, buffer.GetBytes(), buffer.GetByteSize(), error);
+
+    if (error.Fail())
+        return false;
+
+    value.SetBytes(buffer.GetBytes(), buffer.GetByteSize());
+    return true;
+}
+
 ValueObjectSP
 ABISysV_arm::GetReturnValueObjectImpl (Thread &thread,
-                                       lldb_private::ClangASTType &clang_type) const
+                                       lldb_private::CompilerType &compiler_type) const
 {
     Value value;
     ValueObjectSP return_valobj_sp;
     
-    if (!clang_type)
+    if (!compiler_type)
         return return_valobj_sp;
     
-    clang::ASTContext *ast_context = clang_type.GetASTContext();
-    if (!ast_context)
-        return return_valobj_sp;
-
-    //value.SetContext (Value::eContextTypeClangType, clang_type.GetOpaqueQualType());
-    value.SetClangType (clang_type);
+    //value.SetContext (Value::eContextTypeClangType, compiler_type.GetOpaqueQualType());
+    value.SetCompilerType (compiler_type);
             
     RegisterContext *reg_ctx = thread.GetRegisterContext().get();
     if (!reg_ctx)
@@ -427,9 +439,9 @@ ABISysV_arm::GetReturnValueObjectImpl (Thread &thread,
     // when reading data
     
     const RegisterInfo *r0_reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1);
-    size_t bit_width = clang_type.GetBitSize(&thread);
+    size_t bit_width = compiler_type.GetBitSize(&thread);
 
-    if (clang_type.IsIntegerType (is_signed))
+    if (compiler_type.IsIntegerType (is_signed))
     {       
         switch (bit_width)
         {
@@ -467,12 +479,33 @@ ABISysV_arm::GetReturnValueObjectImpl (Thread &thread,
                 break;
         }
     }
-    else if (clang_type.IsPointerType ())
+    else if (compiler_type.IsPointerType ())
     {
         uint32_t ptr = thread.GetRegisterContext()->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX;
         value.GetScalar() = ptr;
     }
-    else if (clang_type.IsFloatingPointType(float_count, is_complex))
+    else if (compiler_type.IsVectorType(nullptr, nullptr))
+    {
+        size_t byte_size = compiler_type.GetByteSize(&thread);
+        if (byte_size <= 16)
+        {
+            DataBufferHeap buffer(16, 0);
+            uint32_t* buffer_ptr = (uint32_t*)buffer.GetBytes();
+            
+            for (uint32_t i = 0; 4*i < byte_size; ++i)
+            {
+                const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + i);
+                buffer_ptr[i] = reg_ctx->ReadRegisterAsUnsigned(reg_info, 0) & UINT32_MAX;
+            }
+            value.SetBytes(buffer.GetBytes(), byte_size);
+        }
+        else
+        {
+            if (!GetReturnValuePassedInMemory(thread, reg_ctx, byte_size, value))
+                return return_valobj_sp;
+        }
+    }
+    else if (compiler_type.IsFloatingPointType(float_count, is_complex))
     {
         if (float_count == 1 && !is_complex)
         {
@@ -506,9 +539,9 @@ ABISysV_arm::GetReturnValueObjectImpl (Thread &thread,
             return return_valobj_sp;
         }
     }
-    else if (clang_type.IsAggregateType())
+    else if (compiler_type.IsAggregateType())
     {
-        size_t byte_size = clang_type.GetByteSize(&thread);
+        size_t byte_size = compiler_type.GetByteSize(&thread);
         if (byte_size <= 4)
         {
             RegisterValue r0_reg_value;
@@ -517,16 +550,7 @@ ABISysV_arm::GetReturnValueObjectImpl (Thread &thread,
         }
         else
         {
-            RegisterValue r0_reg_value;
-            uint32_t address = reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX;
-
-            Error error;
-            DataBufferHeap buffer(byte_size, 0);
-            thread.GetProcess()->ReadMemory(address, buffer.GetBytes(), buffer.GetByteSize(), error);
-
-            if (error.Success())
-                value.SetBytes(buffer.GetBytes(), buffer.GetByteSize());
-            else
+            if (!GetReturnValuePassedInMemory(thread, reg_ctx, byte_size, value))
                 return return_valobj_sp;
         }
     }
@@ -554,8 +578,8 @@ ABISysV_arm::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjec
         return error;
     }
     
-    ClangASTType clang_type = new_value_sp->GetClangType();
-    if (!clang_type)
+    CompilerType compiler_type = new_value_sp->GetCompilerType();
+    if (!compiler_type)
     {
         error.SetErrorString ("Null clang type for return value.");
         return error;
@@ -570,7 +594,7 @@ ABISysV_arm::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjec
     RegisterContext *reg_ctx = thread->GetRegisterContext().get();
 
     bool set_it_simple = false;
-    if (clang_type.IsIntegerType (is_signed) || clang_type.IsPointerType())
+    if (compiler_type.IsIntegerType (is_signed) || compiler_type.IsPointerType())
     {
         DataExtractor data;
         Error data_error;
@@ -610,7 +634,7 @@ ABISysV_arm::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjec
             error.SetErrorString("We don't support returning longer than 64 bit integer values at present.");
         }
     }
-    else if (clang_type.IsFloatingPointType (count, is_complex))
+    else if (compiler_type.IsFloatingPointType (count, is_complex))
     {
         if (is_complex)
             error.SetErrorString ("We don't support returning complex values at present");
diff --git a/source/Plugins/ABI/SysV-arm/ABISysV_arm.h b/source/Plugins/ABI/SysV-arm/ABISysV_arm.h
index 69becd6ec0c26..e3b280296a648 100644
--- a/source/Plugins/ABI/SysV-arm/ABISysV_arm.h
+++ b/source/Plugins/ABI/SysV-arm/ABISysV_arm.h
@@ -20,7 +20,7 @@
 class ABISysV_arm : public lldb_private::ABI
 {
 public:
-    ~ABISysV_arm() { }
+    ~ABISysV_arm() override = default;
 
     size_t
     GetRedZoneSize () const override;
@@ -39,12 +39,6 @@ public:
     lldb_private::Error
     SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value) override;
 
-protected:
-    lldb::ValueObjectSP
-    GetReturnValueObjectImpl (lldb_private::Thread &thread,
-                    lldb_private::ClangASTType &ast_type) const override;
-
-public:
     bool
     CreateFunctionEntryUnwindPlan (lldb_private::UnwindPlan &unwind_plan) override;
 
@@ -88,6 +82,7 @@ public:
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
+
     static void
     Initialize();
     
@@ -103,6 +98,7 @@ public:
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
+
     lldb_private::ConstString
     GetPluginName() override;
     
@@ -110,6 +106,10 @@ public:
     GetPluginVersion() override;
     
 protected:
+    lldb::ValueObjectSP
+    GetReturnValueObjectImpl(lldb_private::Thread &thread,
+                             lldb_private::CompilerType &ast_type) const override;
+
 private:
     ABISysV_arm() : 
         lldb_private::ABI() 
@@ -118,4 +118,4 @@ private:
     }
 };
 
-#endif  // liblldb_ABISysV_arm_h_
+#endif // liblldb_ABISysV_arm_h_
diff --git a/source/Plugins/ABI/SysV-arm64/ABISysV_arm64.cpp b/source/Plugins/ABI/SysV-arm64/ABISysV_arm64.cpp
index ed058ff19d992..bc6df235cb1e7 100644
--- a/source/Plugins/ABI/SysV-arm64/ABISysV_arm64.cpp
+++ b/source/Plugins/ABI/SysV-arm64/ABISysV_arm64.cpp
@@ -18,7 +18,6 @@
 #include "lldb/Core/Scalar.h"
 #include "lldb/Core/Value.h"
 #include "lldb/Core/ValueObjectConstResult.h"
-#include "lldb/Symbol/ClangASTContext.h"
 #include "lldb/Symbol/UnwindPlan.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/RegisterContext.h"
@@ -37,7 +36,7 @@ using namespace lldb_private;
 
 static RegisterInfo g_register_infos[] =
 {
-    //  NAME       ALT       SZ OFF ENCODING          FORMAT                   COMPILER             DWARF                  GENERIC                     GDB                     LLDB NATIVE
+    //  NAME       ALT       SZ OFF ENCODING          FORMAT                   EH_FRAME             DWARF                  GENERIC                     PROCESS PLUGIN          LLDB NATIVE
     //  ========== =======   == === =============     ===================      ===================  ====================== =========================== ======================= ======================
     {   "x0",      NULL,      8, 0, eEncodingUint   , eFormatHex           , { LLDB_INVALID_REGNUM, arm64_dwarf::x0,       LLDB_REGNUM_GENERIC_ARG1,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
     {   "x1",      NULL,      8, 0, eEncodingUint   , eFormatHex           , { LLDB_INVALID_REGNUM, arm64_dwarf::x1,       LLDB_REGNUM_GENERIC_ARG2,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM }, NULL, NULL },
@@ -313,7 +312,7 @@ ABISysV_arm64::GetArgumentValues (Thread &thread, ValueList &values) const
         if (!value)
             return false;
         
-        ClangASTType value_type = value->GetClangType();
+        CompilerType value_type = value->GetCompilerType();
         if (value_type)
         {
             bool is_signed = false;
@@ -397,7 +396,7 @@ ABISysV_arm64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObj
         return error;
     }
     
-    ClangASTType return_value_type = new_value_sp->GetClangType();
+    CompilerType return_value_type = new_value_sp->GetCompilerType();
     if (!return_value_type)
     {
         error.SetErrorString ("Null clang type for return value.");
@@ -686,7 +685,7 @@ ABISysV_arm64::RegisterIsVolatile (const RegisterInfo *reg_info)
 static bool
 LoadValueFromConsecutiveGPRRegisters (ExecutionContext &exe_ctx,
                                       RegisterContext *reg_ctx,
-                                      const ClangASTType &value_type,
+                                      const CompilerType &value_type,
                                       bool is_return_value, // false => parameter, true => return value
                                       uint32_t &NGRN,       // NGRN (see ABI documentation)
                                       uint32_t &NSRN,       // NSRN (see ABI documentation)
@@ -701,18 +700,16 @@ LoadValueFromConsecutiveGPRRegisters (ExecutionContext &exe_ctx,
     const ByteOrder byte_order = exe_ctx.GetProcessRef().GetByteOrder();
     Error error;
 
-    ClangASTType base_type;
+    CompilerType base_type;
     const uint32_t homogeneous_count = value_type.IsHomogeneousAggregate (&base_type);
     if (homogeneous_count > 0 && homogeneous_count <= 8)
     {
-        printf ("ClangASTContext::IsHomogeneousAggregate() => %u\n", homogeneous_count);
         // Make sure we have enough registers
         if (NSRN < 8 && (8-NSRN) >= homogeneous_count)
         {
             if (!base_type)
                 return false;
             const size_t base_byte_size = base_type.GetByteSize(nullptr);
-            printf ("ClangASTContext::IsHomogeneousAggregate() => base_byte_size = %" PRIu64 "\n", (uint64_t) base_byte_size);
             uint32_t data_offset = 0;
 
             for (uint32_t i=0; i<homogeneous_count; ++i)
@@ -831,7 +828,7 @@ LoadValueFromConsecutiveGPRRegisters (ExecutionContext &exe_ctx,
 }
 
 ValueObjectSP
-ABISysV_arm64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clang_type) const
+ABISysV_arm64::GetReturnValueObjectImpl (Thread &thread, CompilerType &return_compiler_type) const
 {
     ValueObjectSP return_valobj_sp;
     Value value;
@@ -840,16 +837,16 @@ ABISysV_arm64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cl
     if (exe_ctx.GetTargetPtr() == NULL || exe_ctx.GetProcessPtr() == NULL)
         return return_valobj_sp;
 
-    //value.SetContext (Value::eContextTypeClangType, return_clang_type);
-    value.SetClangType(return_clang_type);
+    //value.SetContext (Value::eContextTypeClangType, return_compiler_type);
+    value.SetCompilerType(return_compiler_type);
     
     RegisterContext *reg_ctx = thread.GetRegisterContext().get();
     if (!reg_ctx)
         return return_valobj_sp;
     
-    const size_t byte_size = return_clang_type.GetByteSize(nullptr);
+    const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
 
-    const uint32_t type_flags = return_clang_type.GetTypeInfo (NULL);
+    const uint32_t type_flags = return_compiler_type.GetTypeInfo (NULL);
     if (type_flags & eTypeIsScalar ||
         type_flags & eTypeIsPointer)
     {
@@ -898,7 +895,7 @@ ABISysV_arm64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cl
                                                                     exe_ctx.GetProcessRef().GetAddressByteSize());
                                                 
                                                 return_valobj_sp = ValueObjectConstResult::Create (&thread,
-                                                                                                   return_clang_type,
+                                                                                                   return_compiler_type,
                                                                                                    ConstString(""),
                                                                                                    data);
                                                 return return_valobj_sp;
@@ -1015,7 +1012,7 @@ ABISysV_arm64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cl
                                                 byte_order,
                                                 exe_ctx.GetProcessRef().GetAddressByteSize());
                             return_valobj_sp = ValueObjectConstResult::Create (&thread,
-                                                                               return_clang_type,
+                                                                               return_compiler_type,
                                                                                ConstString(""),
                                                                                data);
                         }
@@ -1032,10 +1029,10 @@ ABISysV_arm64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cl
         uint32_t NGRN = 0;  // Search ABI docs for NGRN
         uint32_t NSRN = 0;  // Search ABI docs for NSRN
         const bool is_return_value = true;
-        if (LoadValueFromConsecutiveGPRRegisters (exe_ctx, reg_ctx, return_clang_type, is_return_value, NGRN, NSRN, data))
+        if (LoadValueFromConsecutiveGPRRegisters (exe_ctx, reg_ctx, return_compiler_type, is_return_value, NGRN, NSRN, data))
         {
             return_valobj_sp = ValueObjectConstResult::Create (&thread,
-                                                               return_clang_type,
+                                                               return_compiler_type,
                                                                ConstString(""),
                                                                data);            
         }
diff --git a/source/Plugins/ABI/SysV-arm64/ABISysV_arm64.h b/source/Plugins/ABI/SysV-arm64/ABISysV_arm64.h
index 08c8682d8fa49..e36f87e744f40 100644
--- a/source/Plugins/ABI/SysV-arm64/ABISysV_arm64.h
+++ b/source/Plugins/ABI/SysV-arm64/ABISysV_arm64.h
@@ -20,7 +20,7 @@
 class ABISysV_arm64 : public lldb_private::ABI
 {
 public:
-    ~ABISysV_arm64() { }
+    ~ABISysV_arm64() override = default;
 
     size_t
     GetRedZoneSize () const override;
@@ -39,12 +39,6 @@ public:
     lldb_private::Error
     SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value) override;
 
-protected:
-    lldb::ValueObjectSP
-    GetReturnValueObjectImpl (lldb_private::Thread &thread,
-                    lldb_private::ClangASTType &ast_type) const override;
-
-public:
     bool
     CreateFunctionEntryUnwindPlan (lldb_private::UnwindPlan &unwind_plan) override;
 
@@ -64,7 +58,6 @@ public:
     // Whitelisting the trap handlers for user space would be easy (_sigtramp) but
     // in other environments there can be a large number of different functions
     // involved in async traps.
-
     bool
     CallFrameAddressIsValid (lldb::addr_t cfa) override
     {
@@ -92,6 +85,7 @@ public:
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
+
     static void
     Initialize();
     
@@ -107,6 +101,7 @@ public:
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
+
     lldb_private::ConstString
     GetPluginName() override;
     
@@ -114,6 +109,10 @@ public:
     GetPluginVersion() override;
     
 protected:
+    lldb::ValueObjectSP
+    GetReturnValueObjectImpl(lldb_private::Thread &thread,
+                             lldb_private::CompilerType &ast_type) const override;
+
 private:
     ABISysV_arm64() : 
         lldb_private::ABI() 
@@ -122,4 +121,4 @@ private:
     }
 };
 
-#endif  // liblldb_ABISysV_arm64_h_
+#endif // liblldb_ABISysV_arm64_h_
diff --git a/source/Plugins/ABI/SysV-hexagon/ABISysV_hexagon.cpp b/source/Plugins/ABI/SysV-hexagon/ABISysV_hexagon.cpp
index 69129df1f16b7..e0299b6f0b941 100644
--- a/source/Plugins/ABI/SysV-hexagon/ABISysV_hexagon.cpp
+++ b/source/Plugins/ABI/SysV-hexagon/ABISysV_hexagon.cpp
@@ -20,7 +20,6 @@
 #include "lldb/Core/ValueObjectConstResult.h"
 #include "lldb/Core/ValueObjectRegister.h"
 #include "lldb/Core/ValueObjectMemory.h"
-#include "lldb/Symbol/ClangASTContext.h"
 #include "lldb/Symbol/UnwindPlan.h"
 #include "lldb/Target/Target.h"
 #include "lldb/Target/Process.h"
@@ -30,7 +29,7 @@
 
 #include "llvm/ADT/Triple.h"
 
-#include "llvm/IR/Type.h"
+#include "llvm/IR/DerivedTypes.h"
 
 using namespace lldb;
 using namespace lldb_private;
@@ -227,7 +226,7 @@ ABISysV_hexagon::PrepareTrivialCall ( Thread &thread,
 //  . handle 64bit values and their register / stack requirements
 
 */
-#define HEX_ABI_DEBUG 1
+#define HEX_ABI_DEBUG 0
 bool
 ABISysV_hexagon::PrepareTrivialCall ( Thread &thread, 
                                       lldb::addr_t  sp  , 
@@ -243,6 +242,23 @@ ABISysV_hexagon::PrepareTrivialCall ( Thread &thread,
     // grab the process so we have access to the memory for spilling
     lldb::ProcessSP proc = thread.GetProcess( );
 
+    // get the register context for modifying all of the registers
+    RegisterContext *reg_ctx = thread.GetRegisterContext().get();
+    if (!reg_ctx)
+        return false;
+    
+    uint32_t pc_reg = reg_ctx->ConvertRegisterKindToRegisterNumber(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC);
+    if (pc_reg == LLDB_INVALID_REGNUM)
+        return false;
+
+    uint32_t ra_reg = reg_ctx->ConvertRegisterKindToRegisterNumber(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_RA);
+    if (ra_reg == LLDB_INVALID_REGNUM)
+        return false;
+
+    uint32_t sp_reg = reg_ctx->ConvertRegisterKindToRegisterNumber(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP);
+    if (sp_reg == LLDB_INVALID_REGNUM)
+        return false;
+
     // push host data onto target
     for ( size_t i = 0; i < args.size( ); i++ )
     {
@@ -277,11 +293,6 @@ ABISysV_hexagon::PrepareTrivialCall ( Thread &thread,
     // check if this is a variable argument function
     bool isVArg = prototype.isFunctionVarArg();
 
-    // get the register context for modifying all of the registers
-    RegisterContext *reg_ctx = thread.GetRegisterContext().get();
-    if (!reg_ctx)
-        return false;
-    
     // number of arguments passed by register
     int nRegArgs = nVArgRegParams;
     if (! isVArg )
@@ -324,10 +335,9 @@ ABISysV_hexagon::PrepareTrivialCall ( Thread &thread,
     }
 
     // update registers with current function call state
-    reg_ctx->WriteRegisterFromUnsigned ( 41, pc );
-    reg_ctx->WriteRegisterFromUnsigned ( 31, ra );
-    reg_ctx->WriteRegisterFromUnsigned ( 29, sp );
-//  reg_ctx->WriteRegisterFromUnsigned ( FP ??? );
+    reg_ctx->WriteRegisterFromUnsigned(pc_reg, pc);
+    reg_ctx->WriteRegisterFromUnsigned(ra_reg, ra);
+    reg_ctx->WriteRegisterFromUnsigned(sp_reg, sp);
 
 #if HEX_ABI_DEBUG
     // quick and dirty stack dumper for debugging
@@ -359,14 +369,14 @@ ABISysV_hexagon::SetReturnValueObject ( lldb::StackFrameSP &frame_sp, lldb::Valu
 }
 
 ValueObjectSP
-ABISysV_hexagon::GetReturnValueObjectSimple ( Thread &thread, ClangASTType &return_clang_type ) const
+ABISysV_hexagon::GetReturnValueObjectSimple ( Thread &thread, CompilerType &return_compiler_type ) const
 {
     ValueObjectSP return_valobj_sp;
     return return_valobj_sp;
 }
 
 ValueObjectSP
-ABISysV_hexagon::GetReturnValueObjectImpl ( Thread &thread, ClangASTType &return_clang_type ) const
+ABISysV_hexagon::GetReturnValueObjectImpl ( Thread &thread, CompilerType &return_compiler_type ) const
 {
     ValueObjectSP return_valobj_sp;
     return return_valobj_sp;
diff --git a/source/Plugins/ABI/SysV-hexagon/ABISysV_hexagon.h b/source/Plugins/ABI/SysV-hexagon/ABISysV_hexagon.h
index 1550a38c4f3b2..337e3fdcf7b54 100644
--- a/source/Plugins/ABI/SysV-hexagon/ABISysV_hexagon.h
+++ b/source/Plugins/ABI/SysV-hexagon/ABISysV_hexagon.h
@@ -21,63 +21,54 @@ class ABISysV_hexagon :
     public lldb_private::ABI
 {
 public:
+    ~ABISysV_hexagon() override = default;
 
-    ~ABISysV_hexagon( void )
-    {
-    }
-
-    virtual size_t
-    GetRedZoneSize ( void ) const;
+    size_t
+    GetRedZoneSize() const override;
 
-    virtual bool
-    PrepareTrivialCall ( lldb_private::Thread &thread, 
-                         lldb::addr_t sp,
-                         lldb::addr_t functionAddress,
-                         lldb::addr_t returnAddress, 
-                         llvm::ArrayRef<lldb::addr_t> args ) const;
+    bool
+    PrepareTrivialCall(lldb_private::Thread &thread,
+                       lldb::addr_t sp,
+                       lldb::addr_t functionAddress,
+                       lldb::addr_t returnAddress,
+                       llvm::ArrayRef<lldb::addr_t> args) const override;
     
     // special thread plan for GDB style non-jit function calls
-    virtual bool
-    PrepareTrivialCall ( lldb_private::Thread &thread, 
-                         lldb::addr_t sp,
-                         lldb::addr_t functionAddress,
-                         lldb::addr_t returnAddress,
-                         llvm::Type &prototype,
-                         llvm::ArrayRef<ABI::CallArgument> args ) const;
-
-    virtual bool
-    GetArgumentValues ( lldb_private::Thread &thread,
-                        lldb_private::ValueList &values ) const;
+    bool
+    PrepareTrivialCall(lldb_private::Thread &thread, 
+                       lldb::addr_t sp,
+                       lldb::addr_t functionAddress,
+                       lldb::addr_t returnAddress,
+                       llvm::Type &prototype,
+                       llvm::ArrayRef<ABI::CallArgument> args) const override;
+
+    bool
+    GetArgumentValues(lldb_private::Thread &thread,
+                       lldb_private::ValueList &values) const override;
     
-    virtual lldb_private::Error
-    SetReturnValueObject ( lldb::StackFrameSP &frame_sp,
-                           lldb::ValueObjectSP &new_value );
+    lldb_private::Error
+    SetReturnValueObject(lldb::StackFrameSP &frame_sp,
+                         lldb::ValueObjectSP &new_value) override;
 
-protected:
     lldb::ValueObjectSP
-    GetReturnValueObjectSimple ( lldb_private::Thread &thread,
-                                 lldb_private::ClangASTType &ast_type ) const;
-    
-public:    
-    virtual lldb::ValueObjectSP
-    GetReturnValueObjectImpl ( lldb_private::Thread &thread,
-                               lldb_private::ClangASTType &type ) const;
+    GetReturnValueObjectImpl(lldb_private::Thread &thread,
+                             lldb_private::CompilerType &type) const override;
         
     // specialized to work with llvm IR types
-    virtual lldb::ValueObjectSP
-    GetReturnValueObjectImpl ( lldb_private::Thread &thread, llvm::Type &type ) const;
+    lldb::ValueObjectSP
+    GetReturnValueObjectImpl(lldb_private::Thread &thread, llvm::Type &type) const override;
 
-    virtual bool
-    CreateFunctionEntryUnwindPlan ( lldb_private::UnwindPlan &unwind_plan );
+    bool
+    CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
     
-    virtual bool
-    CreateDefaultUnwindPlan ( lldb_private::UnwindPlan &unwind_plan );
+    bool
+    CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
         
-    virtual bool
-    RegisterIsVolatile ( const lldb_private::RegisterInfo *reg_info );
+    bool
+    RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
 
-    virtual bool
-    CallFrameAddressIsValid ( lldb::addr_t cfa )
+    bool
+    CallFrameAddressIsValid(lldb::addr_t cfa) override
     {
         // Make sure the stack call frame addresses are 8 byte aligned
         if (cfa & 0x07)
@@ -87,50 +78,60 @@ public:
         return true;
     }
     
-    virtual bool
-    CodeAddressIsValid ( lldb::addr_t pc )
+    bool
+    CodeAddressIsValid(lldb::addr_t pc) override
     {
         // We have a 64 bit address space, so anything is valid as opcodes
         // aren't fixed width...
         return true;
     }
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoArray ( uint32_t &count );
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoArray(uint32_t &count) override;
 
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
+
     static void
-    Initialize ( void );
+    Initialize();
 
     static void
-    Terminate ( void );
+    Terminate();
 
     static lldb::ABISP
     CreateInstance ( const lldb_private::ArchSpec &arch );
 
     static lldb_private::ConstString
-    GetPluginNameStatic ( void );
+    GetPluginNameStatic();
     
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName ( void );
 
-    virtual uint32_t
-    GetPluginVersion ( void );
+    lldb_private::ConstString
+    GetPluginName() override;
+
+    uint32_t
+    GetPluginVersion() override;
 
 protected:
     void
-    CreateRegisterMapIfNeeded ( void );
+    CreateRegisterMapIfNeeded();
+
+    lldb::ValueObjectSP
+    GetReturnValueObjectSimple(lldb_private::Thread &thread,
+                               lldb_private::CompilerType &ast_type) const;
 
     bool
     RegisterIsCalleeSaved (const lldb_private::RegisterInfo *reg_info);
 
 private:
-    ABISysV_hexagon ( void ) : lldb_private::ABI() { } // Call CreateInstance instead.
+    ABISysV_hexagon() : 
+        lldb_private::ABI() 
+    {
+         // Call CreateInstance instead.
+    }
 };
 
-#endif  // liblldb_ABISysV_hexagon_h_
+#endif // liblldb_ABISysV_hexagon_h_
diff --git a/source/Plugins/ABI/SysV-i386/ABISysV_i386.cpp b/source/Plugins/ABI/SysV-i386/ABISysV_i386.cpp
index 26da9aeb370d0..0a3779a2ce94e 100644
--- a/source/Plugins/ABI/SysV-i386/ABISysV_i386.cpp
+++ b/source/Plugins/ABI/SysV-i386/ABISysV_i386.cpp
@@ -19,7 +19,6 @@
 #include "lldb/Core/ValueObjectConstResult.h"
 #include "lldb/Core/ValueObjectRegister.h"
 #include "lldb/Core/ValueObjectMemory.h"
-#include "lldb/Symbol/ClangASTContext.h"
 #include "lldb/Symbol/UnwindPlan.h"
 #include "lldb/Target/Target.h"
 #include "lldb/Target/Process.h"
@@ -59,171 +58,109 @@ using namespace lldb_private;
 // Comment: Table 2.14 is followed till 'mm' entries.
 // After that, all entries are ignored here.
 
-enum gcc_dwarf_regnums
+enum dwarf_regnums
 {
-    gcc_dwarf_eax = 0,
-    gcc_dwarf_ecx,
-    gcc_dwarf_edx,
-    gcc_dwarf_ebx,
-    gcc_dwarf_esp,
-    gcc_dwarf_ebp,
-    gcc_dwarf_esi,
-    gcc_dwarf_edi,
-    gcc_dwarf_eip,
-    gcc_dwarf_eflags,
-
-    gcc_dwarf_st0 = 11,
-    gcc_dwarf_st1,
-    gcc_dwarf_st2,
-    gcc_dwarf_st3,
-    gcc_dwarf_st4,
-    gcc_dwarf_st5,
-    gcc_dwarf_st6,
-    gcc_dwarf_st7,
-
-    gcc_dwarf_xmm0 = 21,
-    gcc_dwarf_xmm1,
-    gcc_dwarf_xmm2,
-    gcc_dwarf_xmm3,
-    gcc_dwarf_xmm4,
-    gcc_dwarf_xmm5,
-    gcc_dwarf_xmm6,
-    gcc_dwarf_xmm7,
-    gcc_dwarf_ymm0 = gcc_dwarf_xmm0,
-    gcc_dwarf_ymm1 = gcc_dwarf_xmm1,
-    gcc_dwarf_ymm2 = gcc_dwarf_xmm2,
-    gcc_dwarf_ymm3 = gcc_dwarf_xmm3,
-    gcc_dwarf_ymm4 = gcc_dwarf_xmm4,
-    gcc_dwarf_ymm5 = gcc_dwarf_xmm5,
-    gcc_dwarf_ymm6 = gcc_dwarf_xmm6,
-    gcc_dwarf_ymm7 = gcc_dwarf_xmm7,
-
-    gcc_dwarf_mm0 = 29,
-    gcc_dwarf_mm1,
-    gcc_dwarf_mm2,
-    gcc_dwarf_mm3,
-    gcc_dwarf_mm4,
-    gcc_dwarf_mm5,
-    gcc_dwarf_mm6,
-    gcc_dwarf_mm7
-};
-
-
-enum gdb_regnums
-{
-    gdb_eax        =  0,
-    gdb_ecx        =  1,
-    gdb_edx        =  2,
-    gdb_ebx        =  3,
-    gdb_esp        =  4,
-    gdb_ebp        =  5,
-    gdb_esi        =  6,
-    gdb_edi        =  7,
-    gdb_eip        =  8,
-    gdb_eflags     =  9,
-    gdb_cs         = 10,
-    gdb_ss         = 11,
-    gdb_ds         = 12,
-    gdb_es         = 13,
-    gdb_fs         = 14,
-    gdb_gs         = 15,
-    gdb_st0        = 16,
-    gdb_st1        = 17,
-    gdb_st2        = 18,
-    gdb_st3        = 19,
-    gdb_st4        = 20,
-    gdb_st5        = 21,
-    gdb_st6        = 22,
-    gdb_st7        = 23,
-    gdb_fctrl      = 24,    gdb_fcw     = gdb_fctrl,
-    gdb_fstat      = 25,    gdb_fsw     = gdb_fstat,
-    gdb_ftag       = 26,    gdb_ftw     = gdb_ftag,
-    gdb_fiseg      = 27,    gdb_fpu_cs  = gdb_fiseg,
-    gdb_fioff      = 28,    gdb_ip      = gdb_fioff,
-    gdb_foseg      = 29,    gdb_fpu_ds  = gdb_foseg,
-    gdb_fooff      = 30,    gdb_dp      = gdb_fooff,
-    gdb_fop        = 31,
-    gdb_xmm0       = 32,
-    gdb_xmm1       = 33,
-    gdb_xmm2       = 34,
-    gdb_xmm3       = 35,
-    gdb_xmm4       = 36,
-    gdb_xmm5       = 37,
-    gdb_xmm6       = 38,
-    gdb_xmm7       = 39,
-    gdb_mxcsr      = 40,
-    gdb_mm0        = 41,
-    gdb_mm1        = 42,
-    gdb_mm2        = 43,
-    gdb_mm3        = 44,
-    gdb_mm4        = 45,
-    gdb_mm5        = 46,
-    gdb_mm6        = 47,
-    gdb_mm7        = 48,
-    gdb_ymm0       = gdb_xmm0,
-    gdb_ymm1       = gdb_xmm1,
-    gdb_ymm2       = gdb_xmm2,
-    gdb_ymm3       = gdb_xmm3,
-    gdb_ymm4       = gdb_xmm4,
-    gdb_ymm5       = gdb_xmm5,
-    gdb_ymm6       = gdb_xmm6,
-    gdb_ymm7       = gdb_xmm7
+    dwarf_eax = 0,
+    dwarf_ecx,
+    dwarf_edx,
+    dwarf_ebx,
+    dwarf_esp,
+    dwarf_ebp,
+    dwarf_esi,
+    dwarf_edi,
+    dwarf_eip,
+    dwarf_eflags,
+
+    dwarf_st0 = 11,
+    dwarf_st1,
+    dwarf_st2,
+    dwarf_st3,
+    dwarf_st4,
+    dwarf_st5,
+    dwarf_st6,
+    dwarf_st7,
+
+    dwarf_xmm0 = 21,
+    dwarf_xmm1,
+    dwarf_xmm2,
+    dwarf_xmm3,
+    dwarf_xmm4,
+    dwarf_xmm5,
+    dwarf_xmm6,
+    dwarf_xmm7,
+    dwarf_ymm0 = dwarf_xmm0,
+    dwarf_ymm1 = dwarf_xmm1,
+    dwarf_ymm2 = dwarf_xmm2,
+    dwarf_ymm3 = dwarf_xmm3,
+    dwarf_ymm4 = dwarf_xmm4,
+    dwarf_ymm5 = dwarf_xmm5,
+    dwarf_ymm6 = dwarf_xmm6,
+    dwarf_ymm7 = dwarf_xmm7,
+
+    dwarf_mm0 = 29,
+    dwarf_mm1,
+    dwarf_mm2,
+    dwarf_mm3,
+    dwarf_mm4,
+    dwarf_mm5,
+    dwarf_mm6,
+    dwarf_mm7
 };
 
 
 static RegisterInfo g_register_infos[] =
 {
-  //  NAME      ALT         SZ OFF ENCODING         FORMAT                  COMPILER                 DWARF                      GENERIC                  GDB                   LLDB NATIVE            VALUE REGS    INVALIDATE REGS
+  //  NAME      ALT         SZ OFF ENCODING         FORMAT                  EH_FRAME                 DWARF                      GENERIC                PROCESS PLUGIN          LLDB NATIVE            VALUE REGS    INVALIDATE REGS
   //  ======    =======     == === =============    ============          ===================== =====================    ============================ ====================  ======================    ==========    ===============
-    { "eax",    nullptr,    4,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_eax       , gcc_dwarf_eax           , LLDB_INVALID_REGNUM       , gdb_eax            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "ebx"   , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_ebx       , gcc_dwarf_ebx           , LLDB_INVALID_REGNUM       , gdb_ebx            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "ecx"   , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_ecx       , gcc_dwarf_ecx           , LLDB_REGNUM_GENERIC_ARG4  , gdb_ecx            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "edx"   , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_edx       , gcc_dwarf_edx           , LLDB_REGNUM_GENERIC_ARG3  , gdb_edx            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "esi"   , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_esi       , gcc_dwarf_esi           , LLDB_REGNUM_GENERIC_ARG2  , gdb_esi            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "edi"   , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_edi       , gcc_dwarf_edi           , LLDB_REGNUM_GENERIC_ARG1  , gdb_edi            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "ebp"   , "fp",       4,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_ebp       , gcc_dwarf_ebp           , LLDB_REGNUM_GENERIC_FP    , gdb_ebp            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "esp"   , "sp",       4,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_esp       , gcc_dwarf_esp           , LLDB_REGNUM_GENERIC_SP    , gdb_esp            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "eip"   , "pc",       4,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_eip       , gcc_dwarf_eip           , LLDB_REGNUM_GENERIC_PC    , gdb_eip            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "eflags", nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_REGNUM_GENERIC_FLAGS , gdb_eflags         , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "cs"    , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_cs             , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "ss"    , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_ss             , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "ds"    , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_ds             , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "es"    , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_es             , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "fs"    , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_fs             , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "gs"    , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_gs             , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "st0"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_st0           , LLDB_INVALID_REGNUM       , gdb_st0            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "st1"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_st1           , LLDB_INVALID_REGNUM       , gdb_st1            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "st2"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_st2           , LLDB_INVALID_REGNUM       , gdb_st2            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "st3"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_st3           , LLDB_INVALID_REGNUM       , gdb_st3            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "st4"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_st4           , LLDB_INVALID_REGNUM       , gdb_st4            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "st5"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_st5           , LLDB_INVALID_REGNUM       , gdb_st5            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "st6"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_st6           , LLDB_INVALID_REGNUM       , gdb_st6            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "st7"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_st7           , LLDB_INVALID_REGNUM       , gdb_st7            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "fctrl" , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_fctrl          , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "fstat" , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_fstat          , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "ftag"  , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_ftag           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "fiseg" , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_fiseg          , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "fioff" , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_fioff          , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "foseg" , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_foseg          , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "fooff" , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_fooff          , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "fop"   , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_fop            , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "xmm0"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_xmm0          , LLDB_INVALID_REGNUM       , gdb_xmm0           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "xmm1"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_xmm1          , LLDB_INVALID_REGNUM       , gdb_xmm1           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "xmm2"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_xmm2          , LLDB_INVALID_REGNUM       , gdb_xmm2           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "xmm3"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_xmm3          , LLDB_INVALID_REGNUM       , gdb_xmm3           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "xmm4"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_xmm4          , LLDB_INVALID_REGNUM       , gdb_xmm4           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "xmm5"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_xmm5          , LLDB_INVALID_REGNUM       , gdb_xmm5           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "xmm6"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_xmm6          , LLDB_INVALID_REGNUM       , gdb_xmm6           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "xmm7"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_xmm7          , LLDB_INVALID_REGNUM       , gdb_xmm7           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "mxcsr" , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , gdb_mxcsr          , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "ymm0"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_ymm0          , LLDB_INVALID_REGNUM       , gdb_ymm0           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "ymm1"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_ymm1          , LLDB_INVALID_REGNUM       , gdb_ymm1           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "ymm2"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_ymm2          , LLDB_INVALID_REGNUM       , gdb_ymm2           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "ymm3"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_ymm3          , LLDB_INVALID_REGNUM       , gdb_ymm3           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "ymm4"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_ymm4          , LLDB_INVALID_REGNUM       , gdb_ymm4           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "ymm5"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_ymm5          , LLDB_INVALID_REGNUM       , gdb_ymm5           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "ymm6"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_ymm6          , LLDB_INVALID_REGNUM       , gdb_ymm6           , LLDB_INVALID_REGNUM },      nullptr,        nullptr},
-    { "ymm7"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM , gcc_dwarf_ymm7          , LLDB_INVALID_REGNUM       , gdb_ymm7           , LLDB_INVALID_REGNUM },      nullptr,        nullptr}
+    { "eax",    nullptr,    4,  0, eEncodingUint  , eFormatHex          , {     dwarf_eax       ,     dwarf_eax           , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "ebx"   , nullptr,    4,  0, eEncodingUint  , eFormatHex          , {     dwarf_ebx       ,     dwarf_ebx           , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "ecx"   , nullptr,    4,  0, eEncodingUint  , eFormatHex          , {     dwarf_ecx       ,     dwarf_ecx           , LLDB_REGNUM_GENERIC_ARG4  , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "edx"   , nullptr,    4,  0, eEncodingUint  , eFormatHex          , {     dwarf_edx       ,     dwarf_edx           , LLDB_REGNUM_GENERIC_ARG3  , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "esi"   , nullptr,    4,  0, eEncodingUint  , eFormatHex          , {     dwarf_esi       ,     dwarf_esi           , LLDB_REGNUM_GENERIC_ARG2  , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "edi"   , nullptr,    4,  0, eEncodingUint  , eFormatHex          , {     dwarf_edi       ,     dwarf_edi           , LLDB_REGNUM_GENERIC_ARG1  , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "ebp"   , "fp",       4,  0, eEncodingUint  , eFormatHex          , {     dwarf_ebp       ,     dwarf_ebp           , LLDB_REGNUM_GENERIC_FP    , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "esp"   , "sp",       4,  0, eEncodingUint  , eFormatHex          , {     dwarf_esp       ,     dwarf_esp           , LLDB_REGNUM_GENERIC_SP    , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "eip"   , "pc",       4,  0, eEncodingUint  , eFormatHex          , {     dwarf_eip       ,     dwarf_eip           , LLDB_REGNUM_GENERIC_PC    , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "eflags", nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_REGNUM_GENERIC_FLAGS , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "cs"    , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "ss"    , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "ds"    , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "es"    , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "fs"    , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "gs"    , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "st0"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_st0           , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "st1"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_st1           , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "st2"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_st2           , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "st3"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_st3           , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "st4"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_st4           , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "st5"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_st5           , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "st6"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_st6           , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "st7"   , nullptr,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_st7           , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "fctrl" , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "fstat" , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "ftag"  , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "fiseg" , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "fioff" , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "foseg" , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "fooff" , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "fop"   , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "xmm0"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_xmm0          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "xmm1"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_xmm1          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "xmm2"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_xmm2          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "xmm3"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_xmm3          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "xmm4"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_xmm4          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "xmm5"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_xmm5          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "xmm6"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_xmm6          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "xmm7"  , nullptr,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_xmm7          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "mxcsr" , nullptr,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "ymm0"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_ymm0          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "ymm1"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_ymm1          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "ymm2"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_ymm2          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "ymm3"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_ymm3          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "ymm4"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_ymm4          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "ymm5"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_ymm5          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "ymm6"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_ymm6          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr},
+    { "ymm7"  , nullptr,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM ,     dwarf_ymm7          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      nullptr,        nullptr}
 };
 
 static const uint32_t k_num_register_infos = llvm::array_lengthof(g_register_infos);
@@ -387,22 +324,22 @@ ABISysV_i386::GetArgumentValues (Thread &thread,
             return false;
 
         // Currently: Support for extracting values with Clang QualTypes only.
-        ClangASTType clang_type (value->GetClangType());
-        if (clang_type)
+        CompilerType compiler_type (value->GetCompilerType());
+        if (compiler_type)
         {
             bool is_signed;
-            if (clang_type.IsIntegerType (is_signed))
+            if (compiler_type.IsIntegerType (is_signed))
             {
                 ReadIntegerArgument(value->GetScalar(),
-                                    clang_type.GetBitSize(&thread),
+                                    compiler_type.GetBitSize(&thread),
                                     is_signed,
                                     thread.GetProcess().get(),
                                     current_stack_argument);
             }
-            else if (clang_type.IsPointerType())
+            else if (compiler_type.IsPointerType())
             {
                 ReadIntegerArgument(value->GetScalar(),
-                                    clang_type.GetBitSize(&thread),
+                                    compiler_type.GetBitSize(&thread),
                                     false,
                                     thread.GetProcess().get(),
                                     current_stack_argument);
@@ -418,29 +355,170 @@ Error
 ABISysV_i386::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value_sp)
 {
     Error error;
-    //ToDo: Yet to be implemented
-    error.SetErrorString("ABISysV_i386::SetReturnValueObject(): Not implemented yet");
+    if (!new_value_sp)
+    {
+        error.SetErrorString("Empty value object for return value.");
+        return error;
+    }
+
+    CompilerType compiler_type = new_value_sp->GetCompilerType();
+    if (!compiler_type)
+    {
+        error.SetErrorString ("Null clang type for return value.");
+        return error;
+    }
+
+    const uint32_t type_flags = compiler_type.GetTypeInfo ();
+    Thread *thread = frame_sp->GetThread().get();
+    RegisterContext *reg_ctx = thread->GetRegisterContext().get();
+    DataExtractor data;
+    Error data_error;
+    size_t num_bytes = new_value_sp->GetData(data, data_error);
+    bool register_write_successful = true;
+
+    if (data_error.Fail())
+    {
+        error.SetErrorStringWithFormat("Couldn't convert return value to raw data: %s", data_error.AsCString());
+        return error;
+    }
+
+    // Following "IF ELSE" block categorizes various 'Fundamental Data Types'.
+    // The terminology 'Fundamental Data Types' used here is adopted from
+    // Table 2.1 of the reference document (specified on top of this file)
+
+    if (type_flags & eTypeIsPointer)     // 'Pointer'
+    {
+        if(num_bytes != sizeof(uint32_t))
+        {
+            error.SetErrorString("Pointer to be returned is not 4 bytes wide");
+            return error;
+        }
+        lldb::offset_t offset = 0;
+        const RegisterInfo *eax_info = reg_ctx->GetRegisterInfoByName("eax", 0);
+        uint32_t raw_value = data.GetMaxU32(&offset, num_bytes);
+        register_write_successful = reg_ctx->WriteRegisterFromUnsigned (eax_info, raw_value);
+    }
+    else if ((type_flags & eTypeIsScalar) || (type_flags & eTypeIsEnumeration)) //'Integral' + 'Floating Point'
+    {
+        lldb::offset_t offset = 0;
+        const RegisterInfo *eax_info = reg_ctx->GetRegisterInfoByName("eax", 0);
+
+        if (type_flags & eTypeIsInteger)    // 'Integral' except enum
+        {
+            switch (num_bytes)
+            {
+                default:
+                    break;
+                case 16:
+                    // For clang::BuiltinType::UInt128 & Int128
+                    // ToDo: Need to decide how to handle it
+                    break;
+                case 8:
+                {
+                    uint32_t raw_value_low = data.GetMaxU32(&offset, 4);
+                    const RegisterInfo *edx_info = reg_ctx->GetRegisterInfoByName("edx", 0);
+                    uint32_t raw_value_high = data.GetMaxU32(&offset, num_bytes - offset);
+                    register_write_successful = (reg_ctx->WriteRegisterFromUnsigned (eax_info, raw_value_low) &&
+                                                reg_ctx->WriteRegisterFromUnsigned (edx_info, raw_value_high));
+                    break;
+                }
+                case 4:
+                case 2:
+                case 1:
+                {
+                    uint32_t raw_value = data.GetMaxU32(&offset, num_bytes);
+                    register_write_successful = reg_ctx->WriteRegisterFromUnsigned (eax_info, raw_value);
+                    break;
+                }
+            }
+        }
+        else if (type_flags & eTypeIsEnumeration)    // handles enum
+        {
+            uint32_t raw_value = data.GetMaxU32(&offset, num_bytes);
+            register_write_successful = reg_ctx->WriteRegisterFromUnsigned (eax_info, raw_value);
+        }
+        else if (type_flags & eTypeIsFloat)  // 'Floating Point'
+        {
+            RegisterValue st0_value, fstat_value, ftag_value;
+            const RegisterInfo *st0_info = reg_ctx->GetRegisterInfoByName("st0", 0);
+            const RegisterInfo *fstat_info = reg_ctx->GetRegisterInfoByName("fstat", 0);
+            const RegisterInfo *ftag_info = reg_ctx->GetRegisterInfoByName("ftag", 0);
+
+            /* According to Page 3-12 of document
+            System V Application Binary Interface, Intel386 Architecture Processor Supplement, Fourth Edition
+            To return Floating Point values, all st% registers except st0 should be empty after exiting from
+            a function. This requires setting fstat and ftag registers to specific values.
+            fstat: The TOP field of fstat should be set to a value [0,7]. ABI doesn't specify the specific
+            value of TOP in case of function return. Hence, we set the TOP field to 7 by our choice. */
+            uint32_t value_fstat_u32 = 0x00003800;
+
+            /* ftag: Implication of setting TOP to 7 and indicating all st% registers empty except st0 is to set
+            7th bit of 4th byte of FXSAVE area to 1 and all other bits of this byte to 0. This is in accordance
+            with the document Intel 64 and IA-32 Architectures Software Developer's Manual, January 2015 */
+            uint32_t value_ftag_u32 = 0x00000080;
+
+            if (num_bytes <= 12)      // handles float, double, long double, __float80
+            {
+                long double value_long_dbl = 0.0;
+                if (num_bytes == 4)
+                    value_long_dbl = data.GetFloat(&offset);
+                else if (num_bytes == 8)
+                    value_long_dbl = data.GetDouble(&offset);
+                else if (num_bytes == 12)
+                    value_long_dbl = data.GetLongDouble(&offset);
+                else
+                {
+                    error.SetErrorString ("Invalid number of bytes for this return type");
+                    return error;
+                }
+                st0_value.SetLongDouble(value_long_dbl);
+                fstat_value.SetUInt32(value_fstat_u32);
+                ftag_value.SetUInt32(value_ftag_u32);
+                register_write_successful = reg_ctx->WriteRegister(st0_info, st0_value) &&
+                                            reg_ctx->WriteRegister(fstat_info, fstat_value) &&
+                                            reg_ctx->WriteRegister(ftag_info, ftag_value);
+            }
+            else if(num_bytes == 16)   // handles __float128
+            {
+                error.SetErrorString ("Implementation is missing for this clang type.");
+            }
+        }
+        else
+        {
+            // Neither 'Integral' nor 'Floating Point'. If flow reaches here
+            // then check type_flags. This type_flags is not a valid type.
+            error.SetErrorString ("Invalid clang type");
+        }
+    }
+    else
+    {
+        /* 'Complex Floating Point', 'Packed', 'Decimal Floating Point' and 'Aggregate' data types
+        are yet to be implemented */
+        error.SetErrorString ("Currently only Integral and Floating Point clang types are supported.");
+    }
+    if(!register_write_successful)
+        error.SetErrorString ("Register writing failed");
     return error;
 }
 
 
 ValueObjectSP
 ABISysV_i386::GetReturnValueObjectSimple (Thread &thread,
-                                          ClangASTType &return_clang_type) const
+                                          CompilerType &return_compiler_type) const
 {
     ValueObjectSP return_valobj_sp;
     Value value;
 
-    if (!return_clang_type)
+    if (!return_compiler_type)
         return return_valobj_sp;
 
-    value.SetClangType (return_clang_type);
+    value.SetCompilerType (return_compiler_type);
 
     RegisterContext *reg_ctx = thread.GetRegisterContext().get();
     if (!reg_ctx)
         return return_valobj_sp;
 
-    const uint32_t type_flags = return_clang_type.GetTypeInfo ();
+    const uint32_t type_flags = return_compiler_type.GetTypeInfo ();
 
     unsigned eax_id = reg_ctx->GetRegisterInfoByName("eax", 0)->kinds[eRegisterKindLLDB];
     unsigned edx_id = reg_ctx->GetRegisterInfoByName("edx", 0)->kinds[eRegisterKindLLDB];
@@ -463,7 +541,7 @@ ABISysV_i386::GetReturnValueObjectSimple (Thread &thread,
     else if ((type_flags & eTypeIsScalar) || (type_flags & eTypeIsEnumeration)) //'Integral' + 'Floating Point'
     {
         value.SetValueType(Value::eValueTypeScalar);
-        const size_t byte_size = return_clang_type.GetByteSize(nullptr);
+        const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
         bool success = false;
 
         if (type_flags & eTypeIsInteger)    // 'Integral' except enum
@@ -579,7 +657,7 @@ ABISysV_i386::GetReturnValueObjectSimple (Thread &thread,
                 return_valobj_sp = ValueObjectMemory::Create (&thread,
                                                                "",
                                                               Address (storage_addr, nullptr),
-                                                              return_clang_type);
+                                                              return_compiler_type);
             }
         }
 
@@ -597,16 +675,12 @@ ABISysV_i386::GetReturnValueObjectSimple (Thread &thread,
 
     else if (type_flags & eTypeIsVector)    // 'Packed'
     {
-        const size_t byte_size = return_clang_type.GetByteSize(nullptr);
+        const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
         if (byte_size > 0)
         {
-            const RegisterInfo *vec_reg = reg_ctx->GetRegisterInfoByName("ymm0", 0);
+            const RegisterInfo *vec_reg = reg_ctx->GetRegisterInfoByName("xmm0", 0);
             if (vec_reg == nullptr)
-            {
-                vec_reg = reg_ctx->GetRegisterInfoByName("xmm0", 0);
-                if (vec_reg == nullptr)
-                    vec_reg = reg_ctx->GetRegisterInfoByName("mm0", 0);
-            }
+                vec_reg = reg_ctx->GetRegisterInfoByName("mm0", 0);
 
             if (vec_reg)
             {
@@ -631,13 +705,52 @@ ABISysV_i386::GetReturnValueObjectSimple (Thread &thread,
                                                     byte_order,
                                                     process_sp->GetTarget().GetArchitecture().GetAddressByteSize());
                                 return_valobj_sp = ValueObjectConstResult::Create (&thread,
-                                                                                   return_clang_type,
+                                                                                   return_compiler_type,
                                                                                    ConstString(""),
                                                                                    data);
                             }
                         }
                     }
                 }
+                else if (byte_size <= vec_reg->byte_size*2)
+                {
+                    const RegisterInfo *vec_reg2 = reg_ctx->GetRegisterInfoByName("xmm1", 0);
+                    if (vec_reg2)
+                    {
+                        ProcessSP process_sp (thread.GetProcess());
+                        if (process_sp)
+                        {
+                            std::unique_ptr<DataBufferHeap> heap_data_ap (new DataBufferHeap(byte_size, 0));
+                            const ByteOrder byte_order = process_sp->GetByteOrder();
+                            RegisterValue reg_value;
+                            RegisterValue reg_value2;
+                            if (reg_ctx->ReadRegister(vec_reg, reg_value) && reg_ctx->ReadRegister(vec_reg2, reg_value2))
+                            {
+
+                                Error error;
+                                if (reg_value.GetAsMemoryData (vec_reg,
+                                                               heap_data_ap->GetBytes(),
+                                                               vec_reg->byte_size,
+                                                               byte_order,
+                                                               error) &&
+                                    reg_value2.GetAsMemoryData (vec_reg2,
+                                                                heap_data_ap->GetBytes() + vec_reg->byte_size,
+                                                                heap_data_ap->GetByteSize() - vec_reg->byte_size,
+                                                                byte_order,
+                                                                error))
+                                {
+                                    DataExtractor data (DataBufferSP (heap_data_ap.release()),
+                                                        byte_order,
+                                                        process_sp->GetTarget().GetArchitecture().GetAddressByteSize());
+                                    return_valobj_sp = ValueObjectConstResult::Create (&thread,
+                                                                                       return_compiler_type,
+                                                                                       ConstString(""),
+                                                                                       data);
+                                }
+                            }
+                        }
+                    }
+                }
             }
         }
     }
@@ -651,15 +764,15 @@ ABISysV_i386::GetReturnValueObjectSimple (Thread &thread,
 
 
 ValueObjectSP
-ABISysV_i386::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clang_type) const
+ABISysV_i386::GetReturnValueObjectImpl (Thread &thread, CompilerType &return_compiler_type) const
 {
     ValueObjectSP return_valobj_sp;
 
-    if (!return_clang_type)
+    if (!return_compiler_type)
         return return_valobj_sp;
 
     ExecutionContext exe_ctx (thread.shared_from_this());
-    return_valobj_sp = GetReturnValueObjectSimple(thread, return_clang_type);
+    return_valobj_sp = GetReturnValueObjectSimple(thread, return_compiler_type);
     if (return_valobj_sp)
         return return_valobj_sp;
 
@@ -667,14 +780,14 @@ ABISysV_i386::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cla
     if (!reg_ctx_sp)
        return return_valobj_sp;
 
-    if (return_clang_type.IsAggregateType())
+    if (return_compiler_type.IsAggregateType())
     {
         unsigned eax_id = reg_ctx_sp->GetRegisterInfoByName("eax", 0)->kinds[eRegisterKindLLDB];
         lldb::addr_t storage_addr = (uint32_t)(thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xffffffff);
         return_valobj_sp = ValueObjectMemory::Create (&thread,
                                                       "",
                                                       Address (storage_addr, nullptr),
-                                                      return_clang_type);
+                                                      return_compiler_type);
     }
 
     return return_valobj_sp;
@@ -690,8 +803,8 @@ ABISysV_i386::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan)
     unwind_plan.Clear();
     unwind_plan.SetRegisterKind (eRegisterKindDWARF);
 
-    uint32_t sp_reg_num = gcc_dwarf_esp;
-    uint32_t pc_reg_num = gcc_dwarf_eip;
+    uint32_t sp_reg_num = dwarf_esp;
+    uint32_t pc_reg_num = dwarf_eip;
 
     UnwindPlan::RowSP row(new UnwindPlan::Row);
     row->GetCFAValue().SetIsRegisterPlusOffset(sp_reg_num, 4);
@@ -714,9 +827,9 @@ ABISysV_i386::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
     unwind_plan.Clear();
     unwind_plan.SetRegisterKind (eRegisterKindDWARF);
 
-    uint32_t fp_reg_num = gcc_dwarf_ebp;
-    uint32_t sp_reg_num = gcc_dwarf_esp;
-    uint32_t pc_reg_num = gcc_dwarf_eip;
+    uint32_t fp_reg_num = dwarf_ebp;
+    uint32_t sp_reg_num = dwarf_esp;
+    uint32_t pc_reg_num = dwarf_eip;
 
     UnwindPlan::RowSP row(new UnwindPlan::Row);
     const int32_t ptr_size = 4;
diff --git a/source/Plugins/ABI/SysV-i386/ABISysV_i386.h b/source/Plugins/ABI/SysV-i386/ABISysV_i386.h
index 9612f900d2cef..2d0f097c328e6 100644
--- a/source/Plugins/ABI/SysV-i386/ABISysV_i386.h
+++ b/source/Plugins/ABI/SysV-i386/ABISysV_i386.h
@@ -21,10 +21,7 @@ class ABISysV_i386 :
     public lldb_private::ABI
 {
 public:
-
-    ~ABISysV_i386()
-    {
-    }
+    ~ABISysV_i386() override = default;
 
     size_t
     GetRedZoneSize () const override
@@ -46,18 +43,9 @@ public:
     lldb_private::Error
     SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value) override;
 
-protected:
-    lldb::ValueObjectSP
-    GetReturnValueObjectSimple (lldb_private::Thread &thread,
-                                lldb_private::ClangASTType &ast_type) const;
-
-    bool
-    RegisterIsCalleeSaved (const lldb_private::RegisterInfo *reg_info);
-
-public:
     lldb::ValueObjectSP
     GetReturnValueObjectImpl (lldb_private::Thread &thread,
-                          lldb_private::ClangASTType &type) const override;
+                          lldb_private::CompilerType &type) const override;
 
     bool
     CreateFunctionEntryUnwindPlan (lldb_private::UnwindPlan &unwind_plan) override;
@@ -104,9 +92,11 @@ public:
 
     const lldb_private::RegisterInfo *
     GetRegisterInfoArray (uint32_t &count) override;
+
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
+
     static void
     Initialize();
 
@@ -119,6 +109,7 @@ public:
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
+
     static lldb_private::ConstString
     GetPluginNameStatic();
 
@@ -126,13 +117,25 @@ public:
     GetPluginName() override;
 
     uint32_t
-    GetPluginVersion()  override
+    GetPluginVersion() override
     {
         return 1;
     }
 
+protected:
+    lldb::ValueObjectSP
+    GetReturnValueObjectSimple(lldb_private::Thread &thread,
+                               lldb_private::CompilerType &ast_type) const;
+
+    bool
+    RegisterIsCalleeSaved(const lldb_private::RegisterInfo *reg_info);
+
 private:
-    ABISysV_i386() : lldb_private::ABI() { } // Call CreateInstance instead.
+    ABISysV_i386() : 
+        lldb_private::ABI() 
+    {
+         // Call CreateInstance instead.
+    }
 };
 
-#endif  // liblldb_ABI_h
+#endif // liblldb_ABISysV_i386_h_
diff --git a/source/Plugins/ABI/SysV-mips/ABISysV_mips.cpp b/source/Plugins/ABI/SysV-mips/ABISysV_mips.cpp
index e1fc13a691afd..3c7e9495d6ce5 100644
--- a/source/Plugins/ABI/SysV-mips/ABISysV_mips.cpp
+++ b/source/Plugins/ABI/SysV-mips/ABISysV_mips.cpp
@@ -20,7 +20,6 @@
 #include "lldb/Core/ValueObjectConstResult.h"
 #include "lldb/Core/ValueObjectRegister.h"
 #include "lldb/Core/ValueObjectMemory.h"
-#include "lldb/Symbol/ClangASTContext.h"
 #include "lldb/Symbol/UnwindPlan.h"
 #include "lldb/Target/Target.h"
 #include "lldb/Target/Process.h"
@@ -34,133 +33,91 @@
 using namespace lldb;
 using namespace lldb_private;
 
-enum gcc_dwarf_regnums
+enum dwarf_regnums
 {
-    gcc_dwarf_r0 = 0,
-    gcc_dwarf_r1,
-    gcc_dwarf_r2,
-    gcc_dwarf_r3,
-    gcc_dwarf_r4,
-    gcc_dwarf_r5,
-    gcc_dwarf_r6,
-    gcc_dwarf_r7,
-    gcc_dwarf_r8,
-    gcc_dwarf_r9,
-    gcc_dwarf_r10,
-    gcc_dwarf_r11,
-    gcc_dwarf_r12,
-    gcc_dwarf_r13,
-    gcc_dwarf_r14,
-    gcc_dwarf_r15,
-    gcc_dwarf_r16,
-    gcc_dwarf_r17,
-    gcc_dwarf_r18,
-    gcc_dwarf_r19,
-    gcc_dwarf_r20,
-    gcc_dwarf_r21,
-    gcc_dwarf_r22,
-    gcc_dwarf_r23,
-    gcc_dwarf_r24,
-    gcc_dwarf_r25,
-    gcc_dwarf_r26,
-    gcc_dwarf_r27,
-    gcc_dwarf_r28,
-    gcc_dwarf_r29,
-    gcc_dwarf_r30,
-    gcc_dwarf_r31,
-    gcc_dwarf_sr,
-    gcc_dwarf_lo,
-    gcc_dwarf_hi,
-    gcc_dwarf_bad,
-    gcc_dwarf_cause,
-    gcc_dwarf_pc
-};
-
-enum gdb_regnums
-{
-    gdb_r0 = 0,
-    gdb_r1,
-    gdb_r2,
-    gdb_r3,
-    gdb_r4,
-    gdb_r5,
-    gdb_r6,
-    gdb_r7,
-    gdb_r8,
-    gdb_r9,
-    gdb_r10,
-    gdb_r11,
-    gdb_r12,
-    gdb_r13,
-    gdb_r14,
-    gdb_r15,
-    gdb_r16,
-    gdb_r17,
-    gdb_r18,
-    gdb_r19,
-    gdb_r20,
-    gdb_r21,
-    gdb_r22,
-    gdb_r23,
-    gdb_r24,
-    gdb_r25,
-    gdb_r26,
-    gdb_r27,
-    gdb_r28,
-    gdb_r29,
-    gdb_r30,
-    gdb_r31,
-    gdb_sr,
-    gdb_lo,
-    gdb_hi,
-    gdb_bad,
-    gdb_cause,
-    gdb_pc
+    dwarf_r0 = 0,
+    dwarf_r1,
+    dwarf_r2,
+    dwarf_r3,
+    dwarf_r4,
+    dwarf_r5,
+    dwarf_r6,
+    dwarf_r7,
+    dwarf_r8,
+    dwarf_r9,
+    dwarf_r10,
+    dwarf_r11,
+    dwarf_r12,
+    dwarf_r13,
+    dwarf_r14,
+    dwarf_r15,
+    dwarf_r16,
+    dwarf_r17,
+    dwarf_r18,
+    dwarf_r19,
+    dwarf_r20,
+    dwarf_r21,
+    dwarf_r22,
+    dwarf_r23,
+    dwarf_r24,
+    dwarf_r25,
+    dwarf_r26,
+    dwarf_r27,
+    dwarf_r28,
+    dwarf_r29,
+    dwarf_r30,
+    dwarf_r31,
+    dwarf_sr,
+    dwarf_lo,
+    dwarf_hi,
+    dwarf_bad,
+    dwarf_cause,
+    dwarf_pc
 };
 
 static const RegisterInfo
 g_register_infos[] =
 {
-   //  NAME      ALT    SZ OFF ENCODING        FORMAT        COMPILER                DWARF                 GENERIC                   GDB           LLDB NATIVE       VALUE REGS  INVALIDATE REGS
-  //  ========  ======  == === =============  =================== ============ ===================== ==================== =================     ====================== ========== ===============
-    { "r0"    , "zero", 4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r0,      gcc_dwarf_r0,           LLDB_INVALID_REGNUM,        gdb_r0,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r1"    , "AT",   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r1,      gcc_dwarf_r1,           LLDB_INVALID_REGNUM,        gdb_r1,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r2"    , "v0",   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r2,      gcc_dwarf_r2,           LLDB_INVALID_REGNUM,        gdb_r2,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r3"    , "v1",   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r3,      gcc_dwarf_r3,           LLDB_INVALID_REGNUM,        gdb_r3,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r4"    , "arg1", 4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r4,      gcc_dwarf_r4,           LLDB_REGNUM_GENERIC_ARG1,   gdb_r4,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r5"    , "arg2", 4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r5,      gcc_dwarf_r5,           LLDB_REGNUM_GENERIC_ARG2,   gdb_r5,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r6"    , "arg3", 4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r6,      gcc_dwarf_r6,           LLDB_REGNUM_GENERIC_ARG3,   gdb_r6,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r7"    , "arg4", 4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r7,      gcc_dwarf_r7,           LLDB_REGNUM_GENERIC_ARG4,   gdb_r7,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r8"    , "arg5", 4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r8,      gcc_dwarf_r8,           LLDB_INVALID_REGNUM,        gdb_r8,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r9"    , "arg6", 4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r9,      gcc_dwarf_r9,           LLDB_INVALID_REGNUM,        gdb_r9,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r10"   , "arg7", 4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r10,     gcc_dwarf_r10,          LLDB_INVALID_REGNUM,        gdb_r10,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r11"   , "arg8", 4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r11,     gcc_dwarf_r11,          LLDB_INVALID_REGNUM,        gdb_r11,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r12"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r12,     gcc_dwarf_r12,          LLDB_INVALID_REGNUM,        gdb_r12,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r13"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r13,     gcc_dwarf_r13,          LLDB_INVALID_REGNUM,        gdb_r13,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r14"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r14,     gcc_dwarf_r14,          LLDB_INVALID_REGNUM,        gdb_r14,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r15"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r15,     gcc_dwarf_r15,          LLDB_INVALID_REGNUM,        gdb_r15,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r16"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r16,     gcc_dwarf_r16,          LLDB_INVALID_REGNUM,        gdb_r16,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r17"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r17,     gcc_dwarf_r17,          LLDB_INVALID_REGNUM,        gdb_r17,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r18"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r18,     gcc_dwarf_r18,          LLDB_INVALID_REGNUM,        gdb_r18,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r19"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r19,     gcc_dwarf_r19,          LLDB_INVALID_REGNUM,        gdb_r19,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r20"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r20,     gcc_dwarf_r20,          LLDB_INVALID_REGNUM,        gdb_r20,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r21"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r21,     gcc_dwarf_r21,          LLDB_INVALID_REGNUM,        gdb_r21,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r22"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r22,     gcc_dwarf_r22,          LLDB_INVALID_REGNUM,        gdb_r22,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r23"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r23,     gcc_dwarf_r23,          LLDB_INVALID_REGNUM,        gdb_r23,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r24"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r24,     gcc_dwarf_r24,          LLDB_INVALID_REGNUM,        gdb_r24,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r25"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r25,     gcc_dwarf_r25,          LLDB_INVALID_REGNUM,        gdb_r25,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r26"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r26,     gcc_dwarf_r26,          LLDB_INVALID_REGNUM,        gdb_r26,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r27"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r27,     gcc_dwarf_r27,          LLDB_INVALID_REGNUM,        gdb_r27,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r28"   , "gp",   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r28,     gcc_dwarf_r28,          LLDB_INVALID_REGNUM,        gdb_r28,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r29"   , "sp",   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r29,     gcc_dwarf_r29,          LLDB_REGNUM_GENERIC_SP,     gdb_r29,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r30"   , "fp",   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r30,     gcc_dwarf_r30,          LLDB_REGNUM_GENERIC_FP,     gdb_r30,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r31"   , "ra",   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r31,     gcc_dwarf_r31,          LLDB_REGNUM_GENERIC_RA,     gdb_r31,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "sr"    , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_sr,      gcc_dwarf_sr,           LLDB_REGNUM_GENERIC_FLAGS,  gdb_sr,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "lo"    , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_lo,      gcc_dwarf_lo,           LLDB_INVALID_REGNUM,        gdb_lo,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "hi"    , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_hi,      gcc_dwarf_hi,           LLDB_INVALID_REGNUM,        gdb_hi,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "bad"   , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_bad,     gcc_dwarf_bad,          LLDB_INVALID_REGNUM,        gdb_bad,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "cause" , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_cause,   gcc_dwarf_cause,        LLDB_INVALID_REGNUM,        gdb_cause,  LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "pc"    , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_pc,      gcc_dwarf_pc,           LLDB_REGNUM_GENERIC_PC,     gdb_pc,     LLDB_INVALID_REGNUM },  NULL,      NULL},
+   //  NAME      ALT    SZ OFF ENCODING        FORMAT         EH_FRAME           DWARF                   GENERIC                     PROCESS PLUGINS         LLDB NATIVE            VALUE REGS  INVALIDATE REGS
+  //  ========  ======  == === =============  ===========    ============       ==============          ============                =================       ===================     ========== =================
+    { "r0"    , "zero", 4,  0, eEncodingUint, eFormatHex,  {     dwarf_r0,          dwarf_r0,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r1"    , "AT",   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r1,          dwarf_r1,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r2"    , "v0",   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r2,          dwarf_r2,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r3"    , "v1",   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r3,          dwarf_r3,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r4"    , "arg1", 4,  0, eEncodingUint, eFormatHex,  {     dwarf_r4,          dwarf_r4,           LLDB_REGNUM_GENERIC_ARG1,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r5"    , "arg2", 4,  0, eEncodingUint, eFormatHex,  {     dwarf_r5,          dwarf_r5,           LLDB_REGNUM_GENERIC_ARG2,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r6"    , "arg3", 4,  0, eEncodingUint, eFormatHex,  {     dwarf_r6,          dwarf_r6,           LLDB_REGNUM_GENERIC_ARG3,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r7"    , "arg4", 4,  0, eEncodingUint, eFormatHex,  {     dwarf_r7,          dwarf_r7,           LLDB_REGNUM_GENERIC_ARG4,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r8"    , "arg5", 4,  0, eEncodingUint, eFormatHex,  {     dwarf_r8,          dwarf_r8,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r9"    , "arg6", 4,  0, eEncodingUint, eFormatHex,  {     dwarf_r9,          dwarf_r9,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r10"   , "arg7", 4,  0, eEncodingUint, eFormatHex,  {     dwarf_r10,         dwarf_r10,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r11"   , "arg8", 4,  0, eEncodingUint, eFormatHex,  {     dwarf_r11,         dwarf_r11,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r12"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r12,         dwarf_r12,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r13"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r13,         dwarf_r13,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r14"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r14,         dwarf_r14,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r15"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r15,         dwarf_r15,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r16"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r16,         dwarf_r16,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r17"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r17,         dwarf_r17,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r18"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r18,         dwarf_r18,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r19"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r19,         dwarf_r19,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r20"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r20,         dwarf_r20,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r21"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r21,         dwarf_r21,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r22"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r22,         dwarf_r22,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r23"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r23,         dwarf_r23,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r24"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r24,         dwarf_r24,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r25"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r25,         dwarf_r25,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r26"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r26,         dwarf_r26,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r27"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r27,         dwarf_r27,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r28"   , "gp",   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r28,         dwarf_r28,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r29"   , "sp",   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r29,         dwarf_r29,          LLDB_REGNUM_GENERIC_SP,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r30"   , "fp",   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r30,         dwarf_r30,          LLDB_REGNUM_GENERIC_FP,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r31"   , "ra",   4,  0, eEncodingUint, eFormatHex,  {     dwarf_r31,         dwarf_r31,          LLDB_REGNUM_GENERIC_RA,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "sr"    , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_sr,          dwarf_sr,           LLDB_REGNUM_GENERIC_FLAGS,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "lo"    , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_lo,          dwarf_lo,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "hi"    , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_hi,          dwarf_hi,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "bad"   , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_bad,         dwarf_bad,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "cause" , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_cause,       dwarf_cause,        LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "pc"    , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_pc,          dwarf_pc,           LLDB_REGNUM_GENERIC_PC,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
 };
 
 static const uint32_t k_num_register_infos = llvm::array_lengthof(g_register_infos);
@@ -284,6 +241,7 @@ ABISysV_mips::PrepareTrivialCall (Thread &thread,
     const RegisterInfo *pc_reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC);
     const RegisterInfo *sp_reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP);
     const RegisterInfo *ra_reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_RA);
+    const RegisterInfo *r25_info = reg_ctx->GetRegisterInfoByName("r25", 0);
 
     if (log)
     log->Printf("Writing SP: 0x%" PRIx64, (uint64_t)sp);
@@ -305,7 +263,14 @@ ABISysV_mips::PrepareTrivialCall (Thread &thread,
     // Set pc to the address of the called function.
     if (!reg_ctx->WriteRegisterFromUnsigned (pc_reg_info, func_addr))
         return false;
-
+    
+    if (log)
+        log->Printf("Writing r25: 0x%" PRIx64, (uint64_t)func_addr);
+    
+    // All callers of position independent functions must place the address of the called function in t9 (r25)
+    if (!reg_ctx->WriteRegisterFromUnsigned (r25_info, func_addr))
+        return false;
+  
     return true;
 }
 
@@ -325,8 +290,8 @@ ABISysV_mips::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObje
         return error;
     }
 
-    ClangASTType clang_type = new_value_sp->GetClangType();
-    if (!clang_type)
+    CompilerType compiler_type = new_value_sp->GetCompilerType();
+    if (!compiler_type)
     {
         error.SetErrorString ("Null clang type for return value.");
         return error;
@@ -341,7 +306,7 @@ ABISysV_mips::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObje
     RegisterContext *reg_ctx = thread->GetRegisterContext().get();
 
     bool set_it_simple = false;
-    if (clang_type.IsIntegerType (is_signed) || clang_type.IsPointerType())
+    if (compiler_type.IsIntegerType (is_signed) || compiler_type.IsPointerType())
     {
         DataExtractor data;
         Error data_error;
@@ -382,7 +347,7 @@ ABISysV_mips::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObje
             error.SetErrorString("We don't support returning longer than 64 bit integer values at present.");
         }
     }
-    else if (clang_type.IsFloatingPointType (count, is_complex))
+    else if (compiler_type.IsFloatingPointType (count, is_complex))
     {
         if (is_complex)
             error.SetErrorString ("We don't support returning complex values at present");
@@ -398,40 +363,41 @@ ABISysV_mips::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObje
 
 
 ValueObjectSP
-ABISysV_mips::GetReturnValueObjectSimple (Thread &thread, ClangASTType &return_clang_type) const
+ABISysV_mips::GetReturnValueObjectSimple (Thread &thread, CompilerType &return_compiler_type) const
 {
     ValueObjectSP return_valobj_sp;
     return return_valobj_sp;
 }
 
 ValueObjectSP
-ABISysV_mips::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clang_type) const
+ABISysV_mips::GetReturnValueObjectImpl (Thread &thread, CompilerType &return_compiler_type) const
 {
     ValueObjectSP return_valobj_sp;
     Value value;
 
-    if (!return_clang_type)
+    if (!return_compiler_type)
         return return_valobj_sp;
 
     ExecutionContext exe_ctx (thread.shared_from_this());
     if (exe_ctx.GetTargetPtr() == NULL || exe_ctx.GetProcessPtr() == NULL)
         return return_valobj_sp;
 
-    value.SetClangType(return_clang_type);
+    value.SetCompilerType(return_compiler_type);
 
     RegisterContext *reg_ctx = thread.GetRegisterContext().get();
     if (!reg_ctx)
         return return_valobj_sp;
     
-    bool is_signed;
+    bool is_signed = false;
+    bool is_complex = false;
+    uint32_t count = 0;
 
     // In MIPS register "r2" (v0) holds the integer function return values
     const RegisterInfo *r2_reg_info = reg_ctx->GetRegisterInfoByName("r2", 0);
+    size_t bit_width = return_compiler_type.GetBitSize(&thread);
     
-    if (return_clang_type.IsIntegerType (is_signed))
+    if (return_compiler_type.IsIntegerType (is_signed))
     {
-        size_t bit_width = return_clang_type.GetBitSize(&thread);
-        
         switch (bit_width)
         {
             default:
@@ -468,11 +434,57 @@ ABISysV_mips::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cla
                 break;
         }
     }
-    else if (return_clang_type.IsPointerType ())
+    else if (return_compiler_type.IsPointerType ())
     {
         uint32_t ptr = thread.GetRegisterContext()->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT32_MAX;
         value.GetScalar() = ptr;
     }
+    else if (return_compiler_type.IsAggregateType ())
+    {
+        // Structure/Vector is always passed in memory and pointer to that memory is passed in r2. 
+        uint64_t mem_address = reg_ctx->ReadRegisterAsUnsigned(reg_ctx->GetRegisterInfoByName("r2", 0), 0);
+        // We have got the address. Create a memory object out of it
+        return_valobj_sp = ValueObjectMemory::Create (&thread,
+                                                      "",
+                                                      Address (mem_address, NULL),
+                                                      return_compiler_type);
+        return return_valobj_sp;
+    }
+    else if (return_compiler_type.IsFloatingPointType (count, is_complex))
+    {
+        const RegisterInfo *f0_info = reg_ctx->GetRegisterInfoByName("f0", 0);
+        const RegisterInfo *f1_info = reg_ctx->GetRegisterInfoByName("f1", 0);
+
+        if (count == 1 && !is_complex)
+        {
+            switch (bit_width)
+            {
+                default:
+                    return return_valobj_sp;
+                case 64:
+                {
+                    static_assert(sizeof(double) == sizeof(uint64_t), "");
+                    uint64_t raw_value;
+                    raw_value = reg_ctx->ReadRegisterAsUnsigned(f0_info, 0) & UINT32_MAX;
+                    raw_value |= ((uint64_t)(reg_ctx->ReadRegisterAsUnsigned(f1_info, 0) & UINT32_MAX)) << 32;
+                    value.GetScalar() = *reinterpret_cast<double*>(&raw_value);
+                    break;
+                }
+                case 32:
+                {
+                    static_assert(sizeof(float) == sizeof(uint32_t), "");
+                    uint32_t raw_value = reg_ctx->ReadRegisterAsUnsigned(f0_info, 0) & UINT32_MAX;
+                    value.GetScalar() = *reinterpret_cast<float*>(&raw_value);
+                    break;
+                }
+            }
+        }
+        else
+        {
+            // not handled yet
+            return return_valobj_sp;
+        }
+    }
     else
     {
         // not handled yet
@@ -496,17 +508,17 @@ ABISysV_mips::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan)
     UnwindPlan::RowSP row(new UnwindPlan::Row);
 
     // Our Call Frame Address is the stack pointer value
-    row->GetCFAValue().SetIsRegisterPlusOffset(gcc_dwarf_r29, 0);
+    row->GetCFAValue().SetIsRegisterPlusOffset(dwarf_r29, 0);
 
     // The previous PC is in the RA
-    row->SetRegisterLocationToRegister(gcc_dwarf_pc, gcc_dwarf_r31, true);
+    row->SetRegisterLocationToRegister(dwarf_pc, dwarf_r31, true);
     unwind_plan.AppendRow (row);
 
     // All other registers are the same.
 
     unwind_plan.SetSourceName ("mips at-func-entry default");
     unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
-    unwind_plan.SetReturnAddressRegister(gcc_dwarf_r31);
+    unwind_plan.SetReturnAddressRegister(dwarf_r31);
     return true;
 }
 
@@ -518,9 +530,9 @@ ABISysV_mips::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
 
     UnwindPlan::RowSP row(new UnwindPlan::Row);
 
-    row->GetCFAValue().SetIsRegisterPlusOffset(gcc_dwarf_r29, 0);
+    row->GetCFAValue().SetIsRegisterPlusOffset(dwarf_r29, 0);
 
-    row->SetRegisterLocationToRegister(gcc_dwarf_pc, gcc_dwarf_r31, true);
+    row->SetRegisterLocationToRegister(dwarf_pc, dwarf_r31, true);
 	
     unwind_plan.AppendRow (row);
     unwind_plan.SetSourceName ("mips default unwind plan");
@@ -542,13 +554,36 @@ ABISysV_mips::RegisterIsCalleeSaved (const RegisterInfo *reg_info)
     {
         // Preserved registers are :
         // r16-r23, r28, r29, r30, r31
+        const char *name = reg_info->name;
 
-        int reg = ((reg_info->byte_offset) / 4);
-
-        bool save  = (reg >= 16) && (reg <= 23);
-             save |= (reg >= 28) && (reg <= 31);
+        if (name[0] == 'r')
+        {
+            switch (name[1])
+            {
+                case '1': 
+                    if (name[2] == '6' || name[2] == '7' || name[2] == '8' || name[2] == '9') // r16-r19
+                        return name[3] == '\0';
+                break;
+                case '2': 
+                    if (name[2] == '0' || name[2] == '1' || name[2] == '2' || name[2] == '3'  // r20-r23
+                        || name[2] == '8' || name[2] == '9')                                  // r28 and r29
+                        return name[3] == '\0';
+                break;
+                case '3': 
+                    if (name[2] == '0' || name[2] == '1')       // r30 and r31
+                        return name[3] == '\0';
+                break;
+            }
 
-        return save;
+            if (name[0] == 'g' && name[1] == 'p' && name[2] == '\0')   // gp (r28)
+                return true;
+            if (name[0] == 's' && name[1] == 'p' && name[2] == '\0')   // sp (r29)
+                return true;
+            if (name[0] == 'f' && name[1] == 'p' && name[2] == '\0')   // fp (r30)
+                return true;
+            if (name[0] == 'r' && name[1] == 'a' && name[2] == '\0')   // ra (r31)
+                return true;
+        }
     }
     return false;
 }
diff --git a/source/Plugins/ABI/SysV-mips/ABISysV_mips.h b/source/Plugins/ABI/SysV-mips/ABISysV_mips.h
index ad47ac2229329..709c3bfe3adf5 100644
--- a/source/Plugins/ABI/SysV-mips/ABISysV_mips.h
+++ b/source/Plugins/ABI/SysV-mips/ABISysV_mips.h
@@ -21,49 +21,40 @@ class ABISysV_mips :
     public lldb_private::ABI
 {
 public:
+    ~ABISysV_mips() override = default;
 
-    ~ABISysV_mips()
-    {
-    }
-
-    virtual size_t
-    GetRedZoneSize () const;
+    size_t
+    GetRedZoneSize() const override;
 
-    virtual bool
-    PrepareTrivialCall (lldb_private::Thread &thread, 
-                        lldb::addr_t sp,
-                        lldb::addr_t functionAddress,
-                        lldb::addr_t returnAddress, 
-                        llvm::ArrayRef<lldb::addr_t> args) const;
+    bool
+    PrepareTrivialCall(lldb_private::Thread &thread,
+                       lldb::addr_t sp,
+                       lldb::addr_t functionAddress,
+                       lldb::addr_t returnAddress,
+                       llvm::ArrayRef<lldb::addr_t> args) const override;
 
-    virtual bool
-    GetArgumentValues (lldb_private::Thread &thread,
-                       lldb_private::ValueList &values) const;
+    bool
+    GetArgumentValues(lldb_private::Thread &thread,
+                      lldb_private::ValueList &values) const override;
 
-    virtual lldb_private::Error
-    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value);
+    lldb_private::Error
+    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value) override;
 
-protected:
     lldb::ValueObjectSP
-    GetReturnValueObjectSimple (lldb_private::Thread &thread,
-                                lldb_private::ClangASTType &ast_type) const;
-    
-public:    
-    virtual lldb::ValueObjectSP
-    GetReturnValueObjectImpl (lldb_private::Thread &thread,
-                          lldb_private::ClangASTType &type) const;
+    GetReturnValueObjectImpl(lldb_private::Thread &thread,
+                             lldb_private::CompilerType &type) const override;
 
-    virtual bool
-    CreateFunctionEntryUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
 
-    virtual bool
-    CreateDefaultUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
 
-    virtual bool
-    RegisterIsVolatile (const lldb_private::RegisterInfo *reg_info);
+    bool
+    RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
 
-    virtual bool
-    CallFrameAddressIsValid (lldb::addr_t cfa)
+    bool
+    CallFrameAddressIsValid(lldb::addr_t cfa) override
     {
         // Make sure the stack call frame addresses are 8 byte aligned
         if (cfa & (8ull - 1ull))
@@ -73,21 +64,21 @@ public:
         return true;
     }
 
-    virtual bool
-    CodeAddressIsValid (lldb::addr_t pc)//must- check
+    bool
+    CodeAddressIsValid(lldb::addr_t pc) override
     {
-       if (pc & (4ull - 1ull))
-           return false;   // Not 4 byte aligned
-        
-        // Anything else if fair game..
-        return true;
+        // Just make sure the address is a valid 32 bit address. Bit zero
+        // might be set due to MicroMIPS function calls, so don't enforce alignment.
+        return (pc <= UINT32_MAX);
     }
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoArray (uint32_t &count);
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoArray(uint32_t &count) override;
+
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
+
     static void
     Initialize();
 
@@ -103,21 +94,30 @@ public:
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
 
-    virtual uint32_t
-    GetPluginVersion();
+    lldb_private::ConstString
+    GetPluginName() override;
+
+    uint32_t
+    GetPluginVersion() override;
 
 protected:
     void
     CreateRegisterMapIfNeeded ();
 
+    lldb::ValueObjectSP
+    GetReturnValueObjectSimple(lldb_private::Thread &thread,
+                               lldb_private::CompilerType &ast_type) const;
+
     bool
     RegisterIsCalleeSaved (const lldb_private::RegisterInfo *reg_info);
 
 private:
-    ABISysV_mips() : lldb_private::ABI() { } // Call CreateInstance instead.
+    ABISysV_mips() : 
+        lldb_private::ABI() 
+    {
+         // Call CreateInstance instead.
+    }
 };
 
-#endif  // liblldb_ABI_h_
+#endif // liblldb_ABISysV_mips_h_
diff --git a/source/Plugins/ABI/SysV-mips64/ABISysV_mips64.cpp b/source/Plugins/ABI/SysV-mips64/ABISysV_mips64.cpp
index c790fa7e7bdd0..bc62c9fe82ee0 100644
--- a/source/Plugins/ABI/SysV-mips64/ABISysV_mips64.cpp
+++ b/source/Plugins/ABI/SysV-mips64/ABISysV_mips64.cpp
@@ -20,7 +20,6 @@
 #include "lldb/Core/ValueObjectConstResult.h"
 #include "lldb/Core/ValueObjectRegister.h"
 #include "lldb/Core/ValueObjectMemory.h"
-#include "lldb/Symbol/ClangASTContext.h"
 #include "lldb/Symbol/UnwindPlan.h"
 #include "lldb/Target/Target.h"
 #include "lldb/Target/Process.h"
@@ -34,133 +33,91 @@
 using namespace lldb;
 using namespace lldb_private;
 
-enum gcc_dwarf_regnums
+enum dwarf_regnums
 {
-    gcc_dwarf_r0 = 0,
-    gcc_dwarf_r1,
-    gcc_dwarf_r2,
-    gcc_dwarf_r3,
-    gcc_dwarf_r4,
-    gcc_dwarf_r5,
-    gcc_dwarf_r6,
-    gcc_dwarf_r7,
-    gcc_dwarf_r8,
-    gcc_dwarf_r9,
-    gcc_dwarf_r10,
-    gcc_dwarf_r11,
-    gcc_dwarf_r12,
-    gcc_dwarf_r13,
-    gcc_dwarf_r14,
-    gcc_dwarf_r15,
-    gcc_dwarf_r16,
-    gcc_dwarf_r17,
-    gcc_dwarf_r18,
-    gcc_dwarf_r19,
-    gcc_dwarf_r20,
-    gcc_dwarf_r21,
-    gcc_dwarf_r22,
-    gcc_dwarf_r23,
-    gcc_dwarf_r24,
-    gcc_dwarf_r25,
-    gcc_dwarf_r26,
-    gcc_dwarf_r27,
-    gcc_dwarf_r28,
-    gcc_dwarf_r29,
-    gcc_dwarf_r30,
-    gcc_dwarf_r31,
-    gcc_dwarf_sr,
-    gcc_dwarf_lo,
-    gcc_dwarf_hi,
-    gcc_dwarf_bad,
-    gcc_dwarf_cause,
-    gcc_dwarf_pc
-};
-
-enum gdb_regnums
-{
-    gdb_r0 = 0,
-    gdb_r1,
-    gdb_r2,
-    gdb_r3,
-    gdb_r4,
-    gdb_r5,
-    gdb_r6,
-    gdb_r7,
-    gdb_r8,
-    gdb_r9,
-    gdb_r10,
-    gdb_r11,
-    gdb_r12,
-    gdb_r13,
-    gdb_r14,
-    gdb_r15,
-    gdb_r16,
-    gdb_r17,
-    gdb_r18,
-    gdb_r19,
-    gdb_r20,
-    gdb_r21,
-    gdb_r22,
-    gdb_r23,
-    gdb_r24,
-    gdb_r25,
-    gdb_r26,
-    gdb_r27,
-    gdb_r28,
-    gdb_r29,
-    gdb_r30,
-    gdb_r31,
-    gdb_sr,
-    gdb_lo,
-    gdb_hi,
-    gdb_bad,
-    gdb_cause,
-    gdb_pc
+    dwarf_r0 = 0,
+    dwarf_r1,
+    dwarf_r2,
+    dwarf_r3,
+    dwarf_r4,
+    dwarf_r5,
+    dwarf_r6,
+    dwarf_r7,
+    dwarf_r8,
+    dwarf_r9,
+    dwarf_r10,
+    dwarf_r11,
+    dwarf_r12,
+    dwarf_r13,
+    dwarf_r14,
+    dwarf_r15,
+    dwarf_r16,
+    dwarf_r17,
+    dwarf_r18,
+    dwarf_r19,
+    dwarf_r20,
+    dwarf_r21,
+    dwarf_r22,
+    dwarf_r23,
+    dwarf_r24,
+    dwarf_r25,
+    dwarf_r26,
+    dwarf_r27,
+    dwarf_r28,
+    dwarf_r29,
+    dwarf_r30,
+    dwarf_r31,
+    dwarf_sr,
+    dwarf_lo,
+    dwarf_hi,
+    dwarf_bad,
+    dwarf_cause,
+    dwarf_pc
 };
 
 static const RegisterInfo
 g_register_infos_mips64[] =
 {
-   //  NAME      ALT    SZ OFF ENCODING        FORMAT        COMPILER                DWARF                 GENERIC                   GDB           LLDB NATIVE       VALUE REGS  INVALIDATE REGS
-  //  ========  ======  == === =============  =================== ============ ===================== ==================== =================     ====================== ========== ===============
-    { "r0"    , "zero", 8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r0,      gcc_dwarf_r0,           LLDB_INVALID_REGNUM,        gdb_r0,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r1"    , "AT",   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r1,      gcc_dwarf_r1,           LLDB_INVALID_REGNUM,        gdb_r1,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r2"    , "v0",   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r2,      gcc_dwarf_r2,           LLDB_INVALID_REGNUM,        gdb_r2,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r3"    , "v1",   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r3,      gcc_dwarf_r3,           LLDB_INVALID_REGNUM,        gdb_r3,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r4"    , "arg1", 8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r4,      gcc_dwarf_r4,           LLDB_REGNUM_GENERIC_ARG1,   gdb_r4,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r5"    , "arg2", 8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r5,      gcc_dwarf_r5,           LLDB_REGNUM_GENERIC_ARG2,   gdb_r5,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r6"    , "arg3", 8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r6,      gcc_dwarf_r6,           LLDB_REGNUM_GENERIC_ARG3,   gdb_r6,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r7"    , "arg4", 8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r7,      gcc_dwarf_r7,           LLDB_REGNUM_GENERIC_ARG4,   gdb_r7,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r8"    , "arg5", 8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r8,      gcc_dwarf_r8,           LLDB_REGNUM_GENERIC_ARG5,   gdb_r8,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r9"    , "arg6", 8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r9,      gcc_dwarf_r9,           LLDB_REGNUM_GENERIC_ARG6,   gdb_r9,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r10"   , "arg7", 8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r10,     gcc_dwarf_r10,          LLDB_REGNUM_GENERIC_ARG7,   gdb_r10,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r11"   , "arg8", 8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r11,     gcc_dwarf_r11,          LLDB_REGNUM_GENERIC_ARG8,   gdb_r11,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r12"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r12,     gcc_dwarf_r12,          LLDB_INVALID_REGNUM,        gdb_r12,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r13"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r13,     gcc_dwarf_r13,          LLDB_INVALID_REGNUM,        gdb_r13,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r14"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r14,     gcc_dwarf_r14,          LLDB_INVALID_REGNUM,        gdb_r14,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r15"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r15,     gcc_dwarf_r15,          LLDB_INVALID_REGNUM,        gdb_r15,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r16"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r16,     gcc_dwarf_r16,          LLDB_INVALID_REGNUM,        gdb_r16,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r17"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r17,     gcc_dwarf_r17,          LLDB_INVALID_REGNUM,        gdb_r17,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r18"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r18,     gcc_dwarf_r18,          LLDB_INVALID_REGNUM,        gdb_r18,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r19"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r19,     gcc_dwarf_r19,          LLDB_INVALID_REGNUM,        gdb_r19,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r20"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r20,     gcc_dwarf_r20,          LLDB_INVALID_REGNUM,        gdb_r20,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r21"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r21,     gcc_dwarf_r21,          LLDB_INVALID_REGNUM,        gdb_r21,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r22"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r22,     gcc_dwarf_r22,          LLDB_INVALID_REGNUM,        gdb_r22,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r23"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r23,     gcc_dwarf_r23,          LLDB_INVALID_REGNUM,        gdb_r23,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r24"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r24,     gcc_dwarf_r24,          LLDB_INVALID_REGNUM,        gdb_r24,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r25"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r25,     gcc_dwarf_r25,          LLDB_INVALID_REGNUM,        gdb_r25,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r26"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r26,     gcc_dwarf_r26,          LLDB_INVALID_REGNUM,        gdb_r26,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r27"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r27,     gcc_dwarf_r27,          LLDB_INVALID_REGNUM,        gdb_r27,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r28"   , "gp",   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r28,     gcc_dwarf_r28,          LLDB_INVALID_REGNUM,        gdb_r28,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r29"   , "sp",   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r29,     gcc_dwarf_r29,          LLDB_REGNUM_GENERIC_SP,     gdb_r29,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r30"   , "fp",   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r30,     gcc_dwarf_r30,          LLDB_REGNUM_GENERIC_FP,     gdb_r30,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "r31"   , "ra",   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_r31,     gcc_dwarf_r31,          LLDB_REGNUM_GENERIC_RA,     gdb_r31,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "sr"    , NULL,   4,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_sr,      gcc_dwarf_sr,           LLDB_REGNUM_GENERIC_FLAGS,  gdb_sr,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "lo"    , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_lo,      gcc_dwarf_lo,           LLDB_INVALID_REGNUM,        gdb_lo,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "hi"    , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_hi,      gcc_dwarf_hi,           LLDB_INVALID_REGNUM,        gdb_hi,     LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "bad"   , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_bad,     gcc_dwarf_bad,          LLDB_INVALID_REGNUM,        gdb_bad,    LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "cause" , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_cause,   gcc_dwarf_cause,        LLDB_INVALID_REGNUM,        gdb_cause,  LLDB_INVALID_REGNUM },  NULL,      NULL},
-    { "pc"    , NULL,   8,  0, eEncodingUint, eFormatHex,  { gcc_dwarf_pc,      gcc_dwarf_pc,           LLDB_REGNUM_GENERIC_PC,     gdb_pc,     LLDB_INVALID_REGNUM },  NULL,      NULL},
+   //  NAME      ALT    SZ OFF ENCODING        FORMAT         EH_FRAME           DWARF                   GENERIC                     PROCESS PLUGIN          LLDB NATIVE            VALUE REGS INVALIDATE REGS
+  //  ========  ======  == === =============  ==========     =============      =================       ====================        =================       ====================    ========== ===============
+    { "r0"    , "zero", 8,  0, eEncodingUint, eFormatHex,  {     dwarf_r0,          dwarf_r0,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r1"    , "AT",   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r1,          dwarf_r1,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r2"    , "v0",   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r2,          dwarf_r2,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r3"    , "v1",   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r3,          dwarf_r3,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r4"    , "arg1", 8,  0, eEncodingUint, eFormatHex,  {     dwarf_r4,          dwarf_r4,           LLDB_REGNUM_GENERIC_ARG1,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r5"    , "arg2", 8,  0, eEncodingUint, eFormatHex,  {     dwarf_r5,          dwarf_r5,           LLDB_REGNUM_GENERIC_ARG2,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r6"    , "arg3", 8,  0, eEncodingUint, eFormatHex,  {     dwarf_r6,          dwarf_r6,           LLDB_REGNUM_GENERIC_ARG3,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r7"    , "arg4", 8,  0, eEncodingUint, eFormatHex,  {     dwarf_r7,          dwarf_r7,           LLDB_REGNUM_GENERIC_ARG4,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r8"    , "arg5", 8,  0, eEncodingUint, eFormatHex,  {     dwarf_r8,          dwarf_r8,           LLDB_REGNUM_GENERIC_ARG5,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r9"    , "arg6", 8,  0, eEncodingUint, eFormatHex,  {     dwarf_r9,          dwarf_r9,           LLDB_REGNUM_GENERIC_ARG6,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r10"   , "arg7", 8,  0, eEncodingUint, eFormatHex,  {     dwarf_r10,         dwarf_r10,          LLDB_REGNUM_GENERIC_ARG7,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r11"   , "arg8", 8,  0, eEncodingUint, eFormatHex,  {     dwarf_r11,         dwarf_r11,          LLDB_REGNUM_GENERIC_ARG8,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r12"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r12,         dwarf_r12,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r13"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r13,         dwarf_r13,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r14"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r14,         dwarf_r14,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r15"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r15,         dwarf_r15,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r16"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r16,         dwarf_r16,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r17"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r17,         dwarf_r17,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r18"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r18,         dwarf_r18,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r19"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r19,         dwarf_r19,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r20"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r20,         dwarf_r20,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r21"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r21,         dwarf_r21,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r22"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r22,         dwarf_r22,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r23"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r23,         dwarf_r23,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r24"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r24,         dwarf_r24,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r25"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r25,         dwarf_r25,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r26"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r26,         dwarf_r26,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r27"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r27,         dwarf_r27,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r28"   , "gp",   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r28,         dwarf_r28,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r29"   , "sp",   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r29,         dwarf_r29,          LLDB_REGNUM_GENERIC_SP,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r30"   , "fp",   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r30,         dwarf_r30,          LLDB_REGNUM_GENERIC_FP,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "r31"   , "ra",   8,  0, eEncodingUint, eFormatHex,  {     dwarf_r31,         dwarf_r31,          LLDB_REGNUM_GENERIC_RA,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "sr"    , NULL,   4,  0, eEncodingUint, eFormatHex,  {     dwarf_sr,          dwarf_sr,           LLDB_REGNUM_GENERIC_FLAGS,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "lo"    , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_lo,          dwarf_lo,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "hi"    , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_hi,          dwarf_hi,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "bad"   , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_bad,         dwarf_bad,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "cause" , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_cause,       dwarf_cause,        LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
+    { "pc"    , NULL,   8,  0, eEncodingUint, eFormatHex,  {     dwarf_pc,          dwarf_pc,           LLDB_REGNUM_GENERIC_PC,     LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM },  NULL,      NULL},
 };
 
 static const uint32_t k_num_register_infos = llvm::array_lengthof(g_register_infos_mips64);
@@ -290,8 +247,8 @@ ABISysV_mips64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueOb
         return error;
     }
 
-    ClangASTType clang_type = new_value_sp->GetClangType();
-    if (!clang_type)
+    CompilerType compiler_type = new_value_sp->GetCompilerType();
+    if (!compiler_type)
     {
         error.SetErrorString ("Null clang type for return value.");
         return error;
@@ -313,7 +270,7 @@ ABISysV_mips64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueOb
         return error;
     }
 
-    const uint32_t type_flags = clang_type.GetTypeInfo (NULL);
+    const uint32_t type_flags = compiler_type.GetTypeInfo (NULL);
     
     if (type_flags & eTypeIsScalar ||
         type_flags & eTypeIsPointer)
@@ -368,42 +325,50 @@ ABISysV_mips64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueOb
 
 
 ValueObjectSP
-ABISysV_mips64::GetReturnValueObjectSimple (Thread &thread, ClangASTType &return_clang_type) const
+ABISysV_mips64::GetReturnValueObjectSimple (Thread &thread, CompilerType &return_compiler_type) const
 {
     ValueObjectSP return_valobj_sp;
     return return_valobj_sp;
 }
 
 ValueObjectSP
-ABISysV_mips64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clang_type) const
+ABISysV_mips64::GetReturnValueObjectImpl (Thread &thread, CompilerType &return_compiler_type) const
 {
     ValueObjectSP return_valobj_sp;
     Value value;
-
+    Error error;
+    
     ExecutionContext exe_ctx (thread.shared_from_this());
     if (exe_ctx.GetTargetPtr() == NULL || exe_ctx.GetProcessPtr() == NULL)
         return return_valobj_sp;
 
-    value.SetClangType(return_clang_type);
+    value.SetCompilerType(return_compiler_type);
 
     RegisterContext *reg_ctx = thread.GetRegisterContext().get();
     if (!reg_ctx)
         return return_valobj_sp;
 
-    const size_t byte_size = return_clang_type.GetByteSize(nullptr);
-    const uint32_t type_flags = return_clang_type.GetTypeInfo (NULL);
+    Target *target = exe_ctx.GetTargetPtr();
+    ByteOrder target_byte_order = target->GetArchitecture().GetByteOrder();
+    const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
+    const uint32_t type_flags = return_compiler_type.GetTypeInfo (NULL);
+    
+    const RegisterInfo *r2_info = reg_ctx->GetRegisterInfoByName("r2", 0);
+    const RegisterInfo *r3_info = reg_ctx->GetRegisterInfoByName("r3", 0);
 
-    if (type_flags & eTypeIsScalar)
+    if (type_flags & eTypeIsScalar ||
+        type_flags & eTypeIsPointer)
     {
         value.SetValueType(Value::eValueTypeScalar);
 
         bool success = false;
-        if (type_flags & eTypeIsInteger)
+        if (type_flags & eTypeIsInteger ||
+            type_flags & eTypeIsPointer)
         {
             // Extract the register context so we can read arguments from registers
             // In MIPS register "r2" (v0) holds the integer function return values
 
-            uint64_t raw_value = reg_ctx->ReadRegisterAsUnsigned(reg_ctx->GetRegisterInfoByName("r2", 0), 0);
+            uint64_t raw_value = reg_ctx->ReadRegisterAsUnsigned(r2_info, 0);
 
             const bool is_signed = (type_flags & eTypeIsSigned) != 0;
             switch (byte_size)
@@ -444,25 +409,302 @@ ABISysV_mips64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_c
                     break;
             }
         }
+        else if (type_flags & eTypeIsFloat)
+        {
+            if (type_flags & eTypeIsComplex)
+            {
+                // Don't handle complex yet.
+            }
+            else
+            {
+                if (byte_size <= sizeof(long double))
+                {
+                    const RegisterInfo *f0_info = reg_ctx->GetRegisterInfoByName("f0", 0);
+                    const RegisterInfo *f2_info = reg_ctx->GetRegisterInfoByName("f2", 0);
+                    RegisterValue f0_value, f2_value;
+                    DataExtractor f0_data, f2_data;
+                    
+                    reg_ctx->ReadRegister (f0_info, f0_value);
+                    reg_ctx->ReadRegister (f2_info, f2_value);
+                    
+                    f0_value.GetData(f0_data);
+                    f2_value.GetData(f2_data);
+
+                    lldb::offset_t offset = 0;
+                    if (byte_size == sizeof(float))
+                    {
+                        value.GetScalar() = (float) f0_data.GetFloat(&offset);
+                        success = true;
+                    }
+                    else if (byte_size == sizeof(double))
+                    {
+                        value.GetScalar() = (double) f0_data.GetDouble(&offset);
+                        success = true;
+                    }
+                    else if (byte_size == sizeof(long double))
+                    {
+                        DataExtractor *copy_from_extractor = NULL;
+                        DataBufferSP data_sp (new DataBufferHeap(16, 0));
+                        DataExtractor return_ext (data_sp, 
+                                                  target_byte_order, 
+                                                  target->GetArchitecture().GetAddressByteSize());
+
+                        if (target_byte_order == eByteOrderLittle)
+                        {
+                             f0_data.Append(f2_data);
+                             copy_from_extractor = &f0_data;
+                        }
+                        else
+                        {
+                            f2_data.Append(f0_data);
+                            copy_from_extractor = &f2_data;
+                        }
+
+                        copy_from_extractor->CopyByteOrderedData (0,
+                                                                  byte_size, 
+                                                                  data_sp->GetBytes(),
+                                                                  byte_size, 
+                                                                  target_byte_order);
+
+                        return_valobj_sp = ValueObjectConstResult::Create (&thread, 
+                                                                           return_compiler_type,
+                                                                           ConstString(""),
+                                                                           return_ext);
+                        return return_valobj_sp;
+
+                    }
+                }
+            }
+        }
 
         if (success)
         return_valobj_sp = ValueObjectConstResult::Create (thread.GetStackFrameAtIndex(0).get(),
                                                            value,
                                                            ConstString(""));
     }
-    else if (type_flags & eTypeIsPointer)
+    else if (type_flags & eTypeIsStructUnion ||
+             type_flags & eTypeIsClass ||
+             type_flags & eTypeIsVector)
     {
-        value.SetValueType(Value::eValueTypeScalar);
-        uint64_t raw_value = reg_ctx->ReadRegisterAsUnsigned(reg_ctx->GetRegisterInfoByName("r2", 0), 0);
-        value.GetScalar() = (uint64_t)(raw_value);
+        // Any structure of up to 16 bytes in size is returned in the registers.
+        if (byte_size <= 16)
+        {
+            DataBufferSP data_sp (new DataBufferHeap(16, 0));
+            DataExtractor return_ext (data_sp, 
+                                      target_byte_order, 
+                                      target->GetArchitecture().GetAddressByteSize());
+
+            RegisterValue r2_value, r3_value, f0_value, f1_value, f2_value;
+
+            uint32_t integer_bytes = 0;         // Tracks how much bytes of r2 and r3 registers we've consumed so far
+            bool use_fp_regs = 0;               // True if return values are in FP return registers.
+            bool found_non_fp_field = 0;        // True if we found any non floating point field in structure.
+            bool use_r2 = 0;                    // True if return values are in r2 register.
+            bool use_r3 = 0;                    // True if return values are in r3 register.
+            bool sucess = 0;                    // True if the result is copied into our data buffer
+            std::string name;
+            bool is_complex;
+            uint32_t count;
+            const uint32_t num_children = return_compiler_type.GetNumFields ();
+
+            // A structure consisting of one or two FP values (and nothing else) will be
+            // returned in the two FP return-value registers i.e fp0 and fp2.
+            if (num_children <= 2)
+            {
+                uint64_t field_bit_offset = 0;
 
-        return_valobj_sp = ValueObjectConstResult::Create (thread.GetStackFrameAtIndex(0).get(),
-                                                           value,
-                                                           ConstString(""));
-    }
-    else if (type_flags & eTypeIsVector)
-    {
-        // TODO: Handle vector types
+                // Check if this structure contains only floating point fields
+                for (uint32_t idx = 0; idx < num_children; idx++)
+                {
+                    CompilerType field_compiler_type = return_compiler_type.GetFieldAtIndex (idx, name, &field_bit_offset, NULL, NULL);
+                    
+                    if (field_compiler_type.IsFloatingPointType (count, is_complex))
+                        use_fp_regs = 1;
+                    else
+                        found_non_fp_field = 1;
+                }
+
+                if (use_fp_regs && !found_non_fp_field)
+                {
+                    // We have one or two FP-only values in this structure. Get it from f0/f2 registers.
+                    DataExtractor f0_data, f1_data, f2_data;
+                    const RegisterInfo *f0_info = reg_ctx->GetRegisterInfoByName("f0", 0);
+                    const RegisterInfo *f1_info = reg_ctx->GetRegisterInfoByName("f1", 0);
+                    const RegisterInfo *f2_info = reg_ctx->GetRegisterInfoByName("f2", 0);
+
+                    reg_ctx->ReadRegister (f0_info, f0_value);
+                    reg_ctx->ReadRegister (f2_info, f2_value);
+
+                    f0_value.GetData(f0_data);
+                    f2_value.GetData(f2_data);
+
+                    for (uint32_t idx = 0; idx < num_children; idx++)
+                    {
+                        CompilerType field_compiler_type = return_compiler_type.GetFieldAtIndex (idx, name, &field_bit_offset, NULL, NULL);
+                        const size_t field_byte_width = field_compiler_type.GetByteSize(nullptr);
+
+                        DataExtractor *copy_from_extractor = NULL;
+
+                        if (idx == 0)
+                        {
+                            if (field_byte_width == 16)                 // This case is for long double type.
+                            {
+                                // If structure contains long double type, then it is returned in fp0/fp1 registers.
+                                reg_ctx->ReadRegister (f1_info, f1_value);
+                                f1_value.GetData(f1_data);
+                                
+                                if (target_byte_order == eByteOrderLittle)
+                                {
+                                    f0_data.Append(f1_data);
+                                    copy_from_extractor = &f0_data;
+                                }
+                                else
+                                {
+                                    f1_data.Append(f0_data);
+                                    copy_from_extractor = &f1_data;
+                                }
+                            }
+                            else
+                                copy_from_extractor = &f0_data;        // This is in f0, copy from register to our result structure
+                        }
+                        else
+                            copy_from_extractor = &f2_data;        // This is in f2, copy from register to our result structure
+
+                        // Sanity check to avoid crash
+                        if (!copy_from_extractor || field_byte_width > copy_from_extractor->GetByteSize())
+                            return return_valobj_sp;
+
+                        // copy the register contents into our data buffer
+                        copy_from_extractor->CopyByteOrderedData (0,
+                                                                  field_byte_width, 
+                                                                  data_sp->GetBytes() + (field_bit_offset/8),
+                                                                  field_byte_width, 
+                                                                  target_byte_order);
+                    }
+
+                    // The result is in our data buffer.  Create a variable object out of it
+                    return_valobj_sp = ValueObjectConstResult::Create (&thread, 
+                                                                       return_compiler_type,
+                                                                       ConstString(""),
+                                                                       return_ext);
+
+                    return return_valobj_sp;
+                }
+            }
+
+            // If we reach here, it means this structure either contains more than two fields or 
+            // it contains at least one non floating point type.
+            // In that case, all fields are returned in GP return registers.
+            for (uint32_t idx = 0; idx < num_children; idx++)
+            {
+                uint64_t field_bit_offset = 0;
+                bool is_signed;
+                uint32_t padding;
+
+                CompilerType field_compiler_type = return_compiler_type.GetFieldAtIndex (idx, name, &field_bit_offset, NULL, NULL);
+                const size_t field_byte_width = field_compiler_type.GetByteSize(nullptr);
+
+                // if we don't know the size of the field (e.g. invalid type), just bail out
+                if (field_byte_width == 0)
+                    break;
+
+                uint32_t field_byte_offset = field_bit_offset/8;
+
+                if (field_compiler_type.IsIntegerType (is_signed)
+                    || field_compiler_type.IsPointerType ()
+                    || field_compiler_type.IsFloatingPointType (count, is_complex))
+                {
+                    padding = field_byte_offset - integer_bytes;
+
+                    if (integer_bytes < 8)
+                    {
+                        // We have not yet consumed r2 completely.
+                        if (integer_bytes + field_byte_width + padding <= 8)
+                        {
+                            // This field fits in r2, copy its value from r2 to our result structure
+                            integer_bytes = integer_bytes + field_byte_width + padding;  // Increase the consumed bytes.
+                            use_r2 = 1;
+                        }
+                        else
+                        {
+                            // There isn't enough space left in r2 for this field, so this will be in r3.
+                            integer_bytes = integer_bytes + field_byte_width + padding;  // Increase the consumed bytes.
+                            use_r3 = 1;
+                        }
+                    }
+                    // We already have consumed at-least 8 bytes that means r2 is done, and this field will be in r3.
+                    // Check if this field can fit in r3.
+                    else if (integer_bytes + field_byte_width + padding <= 16)
+                    {
+                        integer_bytes = integer_bytes + field_byte_width + padding;
+                        use_r3 = 1;
+                    }
+                    else
+                    {
+                        // There isn't any space left for this field, this should not happen as we have already checked
+                        // the overall size is not greater than 16 bytes. For now, return a NULL return value object.
+                        return return_valobj_sp;
+                    }
+                }
+            }
+            // Vector types upto 16 bytes are returned in GP return registers
+            if (type_flags & eTypeIsVector)
+            {
+                if (byte_size <= 8)
+                    use_r2 = 1;
+                else
+                {
+                    use_r2 = 1;
+                    use_r3 = 1;
+                }    
+            }
+
+            if (use_r2)
+            {
+                reg_ctx->ReadRegister (r2_info, r2_value);
+
+                const size_t bytes_copied = r2_value.GetAsMemoryData (r2_info,
+                                                                      data_sp->GetBytes(),
+                                                                      r2_info->byte_size,
+                                                                      target_byte_order,
+                                                                      error);
+                if (bytes_copied != r2_info->byte_size)
+                    return return_valobj_sp;
+                sucess = 1;
+            }
+            if (use_r3)
+            {
+                reg_ctx->ReadRegister (r3_info, r3_value);
+                const size_t bytes_copied = r3_value.GetAsMemoryData (r3_info,
+                                                                      data_sp->GetBytes() + r2_info->byte_size,
+                                                                      r3_info->byte_size,
+                                                                      target_byte_order,
+                                                                      error);                                                       
+                                                        
+                if (bytes_copied != r3_info->byte_size)
+                    return return_valobj_sp;
+                sucess = 1;
+            }
+            if (sucess)
+            {
+                // The result is in our data buffer.  Create a variable object out of it
+                return_valobj_sp = ValueObjectConstResult::Create (&thread, 
+                                                                   return_compiler_type,
+                                                                   ConstString(""),
+                                                                   return_ext);
+            }
+            return return_valobj_sp;
+        }
+
+        // Any structure/vector greater than 16 bytes in size is returned in memory.
+        // The pointer to that memory is returned in r2.
+        uint64_t mem_address = reg_ctx->ReadRegisterAsUnsigned(reg_ctx->GetRegisterInfoByName("r2", 0), 0);
+
+        // We have got the address. Create a memory object out of it
+        return_valobj_sp = ValueObjectMemory::Create (&thread,
+                                                      "",
+                                                      Address (mem_address, NULL),
+                                                      return_compiler_type);
     }
     return return_valobj_sp;
 }
@@ -476,17 +718,17 @@ ABISysV_mips64::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan)
     UnwindPlan::RowSP row(new UnwindPlan::Row);
 
     // Our Call Frame Address is the stack pointer value
-    row->GetCFAValue().SetIsRegisterPlusOffset(gcc_dwarf_r29, 0);
+    row->GetCFAValue().SetIsRegisterPlusOffset(dwarf_r29, 0);
 
     // The previous PC is in the RA
-    row->SetRegisterLocationToRegister(gcc_dwarf_pc, gcc_dwarf_r31, true);
+    row->SetRegisterLocationToRegister(dwarf_pc, dwarf_r31, true);
     unwind_plan.AppendRow (row);
 
     // All other registers are the same.
 
     unwind_plan.SetSourceName ("mips64 at-func-entry default");
     unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
-    unwind_plan.SetReturnAddressRegister(gcc_dwarf_r31);
+    unwind_plan.SetReturnAddressRegister(dwarf_r31);
     return true;
 }
 
@@ -498,9 +740,9 @@ ABISysV_mips64::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
 
     UnwindPlan::RowSP row(new UnwindPlan::Row);
 
-    row->GetCFAValue().SetIsRegisterPlusOffset(gcc_dwarf_r29, 0);
+    row->GetCFAValue().SetIsRegisterPlusOffset(dwarf_r29, 0);
 
-    row->SetRegisterLocationToRegister(gcc_dwarf_pc, gcc_dwarf_r31, true);
+    row->SetRegisterLocationToRegister(dwarf_pc, dwarf_r31, true);
 
     unwind_plan.AppendRow (row);
     unwind_plan.SetSourceName ("mips64 default unwind plan");
diff --git a/source/Plugins/ABI/SysV-mips64/ABISysV_mips64.h b/source/Plugins/ABI/SysV-mips64/ABISysV_mips64.h
index c37e717e09381..3290331e05a03 100644
--- a/source/Plugins/ABI/SysV-mips64/ABISysV_mips64.h
+++ b/source/Plugins/ABI/SysV-mips64/ABISysV_mips64.h
@@ -21,46 +21,37 @@ class ABISysV_mips64 :
     public lldb_private::ABI
 {
 public:
+    ~ABISysV_mips64() override = default;
 
-    ~ABISysV_mips64()
-    {
-    }
-
-    virtual size_t
-    GetRedZoneSize () const;
+    size_t
+    GetRedZoneSize() const override;
 
-    virtual bool
-    PrepareTrivialCall (lldb_private::Thread &thread, 
-                        lldb::addr_t sp,
-                        lldb::addr_t functionAddress,
-                        lldb::addr_t returnAddress, 
-                        llvm::ArrayRef<lldb::addr_t> args) const;
+    bool
+    PrepareTrivialCall(lldb_private::Thread &thread,
+                       lldb::addr_t sp,
+                       lldb::addr_t functionAddress,
+                       lldb::addr_t returnAddress,
+                       llvm::ArrayRef<lldb::addr_t> args) const override;
 
-    virtual bool
-    GetArgumentValues (lldb_private::Thread &thread,
-                       lldb_private::ValueList &values) const;
+    bool
+    GetArgumentValues(lldb_private::Thread &thread,
+                      lldb_private::ValueList &values) const override;
 
-    virtual lldb_private::Error
-    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value);
+    lldb_private::Error
+    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value) override;
 
-protected:
     lldb::ValueObjectSP
-    GetReturnValueObjectSimple (lldb_private::Thread &thread,
-                                lldb_private::ClangASTType &ast_type) const;
-
-public:    
-    virtual lldb::ValueObjectSP
-    GetReturnValueObjectImpl (lldb_private::Thread &thread,
-                          lldb_private::ClangASTType &type) const;
+    GetReturnValueObjectImpl(lldb_private::Thread &thread,
+                             lldb_private::CompilerType &type) const override;
 
-    virtual bool
-    CreateFunctionEntryUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
     
-    virtual bool
-    CreateDefaultUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
 
-    virtual bool
-    RegisterIsVolatile (const lldb_private::RegisterInfo *reg_info);
+    bool
+    RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
 
     // The SysV mips ABI requires that stack frames be 16 byte aligned.
     // When there is a trap handler on the stack, e.g. _sigtramp in userland
@@ -72,8 +63,8 @@ public:
     // Whitelisting the trap handlers for user space would be easy (_sigtramp) but
     // in other environments there can be a large number of different functions
     // involved in async traps.
-    virtual bool
-    CallFrameAddressIsValid (lldb::addr_t cfa)
+    bool
+    CallFrameAddressIsValid(lldb::addr_t cfa) override
     {
         // Make sure the stack call frame addresses are 8 byte aligned
         if (cfa & (8ull - 1ull))
@@ -83,8 +74,8 @@ public:
         return true;
     }
 
-    virtual bool
-    CodeAddressIsValid (lldb::addr_t pc)
+    bool
+    CodeAddressIsValid(lldb::addr_t pc) override
     {
        if (pc & (4ull - 1ull))
            return false;   // Not 4 byte aligned
@@ -93,11 +84,13 @@ public:
         return true;
     }
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoArray (uint32_t &count);
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoArray(uint32_t &count) override;
+
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
+
     static void
     Initialize();
 
@@ -113,21 +106,30 @@ public:
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
 
-    virtual uint32_t
-    GetPluginVersion();
+    lldb_private::ConstString
+    GetPluginName() override;
+
+    uint32_t
+    GetPluginVersion() override;
 
 protected:
     void
     CreateRegisterMapIfNeeded ();
 
+    lldb::ValueObjectSP
+    GetReturnValueObjectSimple(lldb_private::Thread &thread,
+                               lldb_private::CompilerType &ast_type) const;
+
     bool
     RegisterIsCalleeSaved (const lldb_private::RegisterInfo *reg_info);
 
 private:
-    ABISysV_mips64() : lldb_private::ABI() { } // Call CreateInstance instead.
+    ABISysV_mips64() : 
+        lldb_private::ABI() 
+    {
+         // Call CreateInstance instead.
+    }
 };
 
-#endif  // liblldb_ABI_h_
+#endif // liblldb_ABISysV_mips64_h_
diff --git a/source/Plugins/ABI/SysV-ppc/ABISysV_ppc.cpp b/source/Plugins/ABI/SysV-ppc/ABISysV_ppc.cpp
index 08416dc25b08f..f0da18637ba81 100644
--- a/source/Plugins/ABI/SysV-ppc/ABISysV_ppc.cpp
+++ b/source/Plugins/ABI/SysV-ppc/ABISysV_ppc.cpp
@@ -20,7 +20,6 @@
 #include "lldb/Core/ValueObjectConstResult.h"
 #include "lldb/Core/ValueObjectRegister.h"
 #include "lldb/Core/ValueObjectMemory.h"
-#include "lldb/Symbol/ClangASTContext.h"
 #include "lldb/Symbol/UnwindPlan.h"
 #include "lldb/Target/Target.h"
 #include "lldb/Target/Process.h"
@@ -34,123 +33,81 @@
 using namespace lldb;
 using namespace lldb_private;
 
-enum gcc_dwarf_regnums
+enum dwarf_regnums
 {
-    gcc_dwarf_r0 = 0,
-    gcc_dwarf_r1,
-    gcc_dwarf_r2,
-    gcc_dwarf_r3,
-    gcc_dwarf_r4,
-    gcc_dwarf_r5,
-    gcc_dwarf_r6,
-    gcc_dwarf_r7,
-    gcc_dwarf_r8,
-    gcc_dwarf_r9,
-    gcc_dwarf_r10,
-    gcc_dwarf_r11,
-    gcc_dwarf_r12,
-    gcc_dwarf_r13,
-    gcc_dwarf_r14,
-    gcc_dwarf_r15,
-    gcc_dwarf_r16,
-    gcc_dwarf_r17,
-    gcc_dwarf_r18,
-    gcc_dwarf_r19,
-    gcc_dwarf_r20,
-    gcc_dwarf_r21,
-    gcc_dwarf_r22,
-    gcc_dwarf_r23,
-    gcc_dwarf_r24,
-    gcc_dwarf_r25,
-    gcc_dwarf_r26,
-    gcc_dwarf_r27,
-    gcc_dwarf_r28,
-    gcc_dwarf_r29,
-    gcc_dwarf_r30,
-    gcc_dwarf_r31,
-    gcc_dwarf_f0,
-    gcc_dwarf_f1,
-    gcc_dwarf_f2,
-    gcc_dwarf_f3,
-    gcc_dwarf_f4,
-    gcc_dwarf_f5,
-    gcc_dwarf_f6,
-    gcc_dwarf_f7,
-    gcc_dwarf_f8,
-    gcc_dwarf_f9,
-    gcc_dwarf_f10,
-    gcc_dwarf_f11,
-    gcc_dwarf_f12,
-    gcc_dwarf_f13,
-    gcc_dwarf_f14,
-    gcc_dwarf_f15,
-    gcc_dwarf_f16,
-    gcc_dwarf_f17,
-    gcc_dwarf_f18,
-    gcc_dwarf_f19,
-    gcc_dwarf_f20,
-    gcc_dwarf_f21,
-    gcc_dwarf_f22,
-    gcc_dwarf_f23,
-    gcc_dwarf_f24,
-    gcc_dwarf_f25,
-    gcc_dwarf_f26,
-    gcc_dwarf_f27,
-    gcc_dwarf_f28,
-    gcc_dwarf_f29,
-    gcc_dwarf_f30,
-    gcc_dwarf_f31,
-    gcc_dwarf_cr,
-    gcc_dwarf_fpscr,
-    gcc_dwarf_xer = 101,
-    gcc_dwarf_lr = 108,
-    gcc_dwarf_ctr,
-    gcc_dwarf_pc,
-    gcc_dwarf_cfa,
+    dwarf_r0 = 0,
+    dwarf_r1,
+    dwarf_r2,
+    dwarf_r3,
+    dwarf_r4,
+    dwarf_r5,
+    dwarf_r6,
+    dwarf_r7,
+    dwarf_r8,
+    dwarf_r9,
+    dwarf_r10,
+    dwarf_r11,
+    dwarf_r12,
+    dwarf_r13,
+    dwarf_r14,
+    dwarf_r15,
+    dwarf_r16,
+    dwarf_r17,
+    dwarf_r18,
+    dwarf_r19,
+    dwarf_r20,
+    dwarf_r21,
+    dwarf_r22,
+    dwarf_r23,
+    dwarf_r24,
+    dwarf_r25,
+    dwarf_r26,
+    dwarf_r27,
+    dwarf_r28,
+    dwarf_r29,
+    dwarf_r30,
+    dwarf_r31,
+    dwarf_f0,
+    dwarf_f1,
+    dwarf_f2,
+    dwarf_f3,
+    dwarf_f4,
+    dwarf_f5,
+    dwarf_f6,
+    dwarf_f7,
+    dwarf_f8,
+    dwarf_f9,
+    dwarf_f10,
+    dwarf_f11,
+    dwarf_f12,
+    dwarf_f13,
+    dwarf_f14,
+    dwarf_f15,
+    dwarf_f16,
+    dwarf_f17,
+    dwarf_f18,
+    dwarf_f19,
+    dwarf_f20,
+    dwarf_f21,
+    dwarf_f22,
+    dwarf_f23,
+    dwarf_f24,
+    dwarf_f25,
+    dwarf_f26,
+    dwarf_f27,
+    dwarf_f28,
+    dwarf_f29,
+    dwarf_f30,
+    dwarf_f31,
+    dwarf_cr,
+    dwarf_fpscr,
+    dwarf_xer = 101,
+    dwarf_lr = 108,
+    dwarf_ctr,
+    dwarf_pc,
+    dwarf_cfa,
 };
 
-enum gdb_regnums
-{
-    gdb_r0 = 0,
-    gdb_r1,
-    gdb_r2,
-    gdb_r3,
-    gdb_r4,
-    gdb_r5,
-    gdb_r6,
-    gdb_r7,
-    gdb_r8,
-    gdb_r9,
-    gdb_r10,
-    gdb_r11,
-    gdb_r12,
-    gdb_r13,
-    gdb_r14,
-    gdb_r15,
-    gdb_r16,
-    gdb_r17,
-    gdb_r18,
-    gdb_r19,
-    gdb_r20,
-    gdb_r21,
-    gdb_r22,
-    gdb_r23,
-    gdb_r24,
-    gdb_r25,
-    gdb_r26,
-    gdb_r27,
-    gdb_r28,
-    gdb_r29,
-    gdb_r30,
-    gdb_r31,
-    gdb_lr,
-    gdb_cr,
-    gdb_xer,
-    gdb_ctr,
-    gdb_pc,
-};
-
-
 // Note that the size and offset will be updated by platform-specific classes.
 #define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4)           \
     { #reg, alt, 8, 0, eEncodingUint, \
@@ -158,45 +115,45 @@ enum gdb_regnums
 static const RegisterInfo
 g_register_infos[] =
 {
-    // General purpose registers.                 GCC,                  DWARF,              Generic,                GDB
-    DEFINE_GPR(r0,       NULL,  gcc_dwarf_r0,    gcc_dwarf_r0,    LLDB_INVALID_REGNUM,    gdb_r0),
-    DEFINE_GPR(r1,       "sp",  gcc_dwarf_r1,    gcc_dwarf_r1,    LLDB_REGNUM_GENERIC_SP, gdb_r1),
-    DEFINE_GPR(r2,       NULL,  gcc_dwarf_r2,    gcc_dwarf_r2,    LLDB_INVALID_REGNUM,    gdb_r2),
-    DEFINE_GPR(r3,       "arg1",gcc_dwarf_r3,    gcc_dwarf_r3,    LLDB_REGNUM_GENERIC_ARG1, gdb_r3),
-    DEFINE_GPR(r4,       "arg2",gcc_dwarf_r4,    gcc_dwarf_r4,    LLDB_REGNUM_GENERIC_ARG2 ,gdb_r4),
-    DEFINE_GPR(r5,       "arg3",gcc_dwarf_r5,    gcc_dwarf_r5,    LLDB_REGNUM_GENERIC_ARG3, gdb_r5),
-    DEFINE_GPR(r6,       "arg4",gcc_dwarf_r6,    gcc_dwarf_r6,    LLDB_REGNUM_GENERIC_ARG4, gdb_r6),
-    DEFINE_GPR(r7,       "arg5",gcc_dwarf_r7,    gcc_dwarf_r7,    LLDB_REGNUM_GENERIC_ARG5, gdb_r7),
-    DEFINE_GPR(r8,       "arg6",gcc_dwarf_r8,    gcc_dwarf_r8,    LLDB_REGNUM_GENERIC_ARG6, gdb_r8),
-    DEFINE_GPR(r9,       "arg7",gcc_dwarf_r9,    gcc_dwarf_r9,    LLDB_REGNUM_GENERIC_ARG7, gdb_r9),
-    DEFINE_GPR(r10,      "arg8",gcc_dwarf_r10,   gcc_dwarf_r10,   LLDB_REGNUM_GENERIC_ARG8, gdb_r10),
-    DEFINE_GPR(r11,      NULL,  gcc_dwarf_r11,   gcc_dwarf_r11,   LLDB_INVALID_REGNUM,    gdb_r11),
-    DEFINE_GPR(r12,      NULL,  gcc_dwarf_r12,   gcc_dwarf_r12,   LLDB_INVALID_REGNUM,    gdb_r12),
-    DEFINE_GPR(r13,      NULL,  gcc_dwarf_r13,   gcc_dwarf_r13,   LLDB_INVALID_REGNUM,    gdb_r13),
-    DEFINE_GPR(r14,      NULL,  gcc_dwarf_r14,   gcc_dwarf_r14,   LLDB_INVALID_REGNUM,    gdb_r14),
-    DEFINE_GPR(r15,      NULL,  gcc_dwarf_r15,   gcc_dwarf_r15,   LLDB_INVALID_REGNUM,    gdb_r15),
-    DEFINE_GPR(r16,      NULL,  gcc_dwarf_r16,   gcc_dwarf_r16,   LLDB_INVALID_REGNUM,    gdb_r16),
-    DEFINE_GPR(r17,      NULL,  gcc_dwarf_r17,   gcc_dwarf_r17,   LLDB_INVALID_REGNUM,    gdb_r17),
-    DEFINE_GPR(r18,      NULL,  gcc_dwarf_r18,   gcc_dwarf_r18,   LLDB_INVALID_REGNUM,    gdb_r18),
-    DEFINE_GPR(r19,      NULL,  gcc_dwarf_r19,   gcc_dwarf_r19,   LLDB_INVALID_REGNUM,    gdb_r19),
-    DEFINE_GPR(r20,      NULL,  gcc_dwarf_r20,   gcc_dwarf_r20,   LLDB_INVALID_REGNUM,    gdb_r20),
-    DEFINE_GPR(r21,      NULL,  gcc_dwarf_r21,   gcc_dwarf_r21,   LLDB_INVALID_REGNUM,    gdb_r21),
-    DEFINE_GPR(r22,      NULL,  gcc_dwarf_r22,   gcc_dwarf_r22,   LLDB_INVALID_REGNUM,    gdb_r22),
-    DEFINE_GPR(r23,      NULL,  gcc_dwarf_r23,   gcc_dwarf_r23,   LLDB_INVALID_REGNUM,    gdb_r23),
-    DEFINE_GPR(r24,      NULL,  gcc_dwarf_r24,   gcc_dwarf_r24,   LLDB_INVALID_REGNUM,    gdb_r24),
-    DEFINE_GPR(r25,      NULL,  gcc_dwarf_r25,   gcc_dwarf_r25,   LLDB_INVALID_REGNUM,    gdb_r25),
-    DEFINE_GPR(r26,      NULL,  gcc_dwarf_r26,   gcc_dwarf_r26,   LLDB_INVALID_REGNUM,    gdb_r26),
-    DEFINE_GPR(r27,      NULL,  gcc_dwarf_r27,   gcc_dwarf_r27,   LLDB_INVALID_REGNUM,    gdb_r27),
-    DEFINE_GPR(r28,      NULL,  gcc_dwarf_r28,   gcc_dwarf_r28,   LLDB_INVALID_REGNUM,    gdb_r28),
-    DEFINE_GPR(r29,      NULL,  gcc_dwarf_r29,   gcc_dwarf_r29,   LLDB_INVALID_REGNUM,    gdb_r29),
-    DEFINE_GPR(r30,      NULL,  gcc_dwarf_r30,   gcc_dwarf_r30,   LLDB_INVALID_REGNUM,    gdb_r30),
-    DEFINE_GPR(r31,      NULL,  gcc_dwarf_r31,   gcc_dwarf_r31,   LLDB_INVALID_REGNUM,    gdb_r31),
-    DEFINE_GPR(lr,       "lr",  gcc_dwarf_lr,    gcc_dwarf_lr,    LLDB_REGNUM_GENERIC_RA, gdb_lr),
-    DEFINE_GPR(cr,       "cr",  gcc_dwarf_cr,    gcc_dwarf_cr,    LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM),
-    DEFINE_GPR(xer,      "xer", gcc_dwarf_xer,   gcc_dwarf_xer,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(ctr,      "ctr", gcc_dwarf_ctr,   gcc_dwarf_ctr,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(pc,       "pc",  gcc_dwarf_pc,    gcc_dwarf_pc,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
-    { NULL, NULL, 8, 0, eEncodingUint, eFormatHex, { gcc_dwarf_cfa, gcc_dwarf_cfa, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, NULL, NULL},
+    // General purpose registers.             eh_frame,                 DWARF,              Generic,    Process Plugin
+    DEFINE_GPR(r0,       NULL,  dwarf_r0,    dwarf_r0,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r1,       "sp",  dwarf_r1,    dwarf_r1,    LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r2,       NULL,  dwarf_r2,    dwarf_r2,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r3,       "arg1",dwarf_r3,    dwarf_r3,    LLDB_REGNUM_GENERIC_ARG1, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r4,       "arg2",dwarf_r4,    dwarf_r4,    LLDB_REGNUM_GENERIC_ARG2 ,LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r5,       "arg3",dwarf_r5,    dwarf_r5,    LLDB_REGNUM_GENERIC_ARG3, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r6,       "arg4",dwarf_r6,    dwarf_r6,    LLDB_REGNUM_GENERIC_ARG4, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r7,       "arg5",dwarf_r7,    dwarf_r7,    LLDB_REGNUM_GENERIC_ARG5, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r8,       "arg6",dwarf_r8,    dwarf_r8,    LLDB_REGNUM_GENERIC_ARG6, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r9,       "arg7",dwarf_r9,    dwarf_r9,    LLDB_REGNUM_GENERIC_ARG7, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r10,      "arg8",dwarf_r10,   dwarf_r10,   LLDB_REGNUM_GENERIC_ARG8, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r11,      NULL,  dwarf_r11,   dwarf_r11,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r12,      NULL,  dwarf_r12,   dwarf_r12,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r13,      NULL,  dwarf_r13,   dwarf_r13,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r14,      NULL,  dwarf_r14,   dwarf_r14,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r15,      NULL,  dwarf_r15,   dwarf_r15,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r16,      NULL,  dwarf_r16,   dwarf_r16,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r17,      NULL,  dwarf_r17,   dwarf_r17,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r18,      NULL,  dwarf_r18,   dwarf_r18,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r19,      NULL,  dwarf_r19,   dwarf_r19,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r20,      NULL,  dwarf_r20,   dwarf_r20,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r21,      NULL,  dwarf_r21,   dwarf_r21,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r22,      NULL,  dwarf_r22,   dwarf_r22,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r23,      NULL,  dwarf_r23,   dwarf_r23,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r24,      NULL,  dwarf_r24,   dwarf_r24,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r25,      NULL,  dwarf_r25,   dwarf_r25,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r26,      NULL,  dwarf_r26,   dwarf_r26,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r27,      NULL,  dwarf_r27,   dwarf_r27,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r28,      NULL,  dwarf_r28,   dwarf_r28,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r29,      NULL,  dwarf_r29,   dwarf_r29,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r30,      NULL,  dwarf_r30,   dwarf_r30,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r31,      NULL,  dwarf_r31,   dwarf_r31,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(lr,       "lr",  dwarf_lr,    dwarf_lr,    LLDB_REGNUM_GENERIC_RA, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(cr,       "cr",  dwarf_cr,    dwarf_cr,    LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(xer,      "xer", dwarf_xer,   dwarf_xer,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(ctr,      "ctr", dwarf_ctr,   dwarf_ctr,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(pc,       "pc",  dwarf_pc,    dwarf_pc,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
+    { NULL, NULL, 8, 0, eEncodingUint, eFormatHex, { dwarf_cfa, dwarf_cfa, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, NULL, NULL},
 };
 
 static const uint32_t k_num_register_infos = llvm::array_lengthof(g_register_infos);
@@ -436,25 +393,25 @@ ABISysV_ppc::GetArgumentValues (Thread &thread,
 
         // We currently only support extracting values with Clang QualTypes.
         // Do we care about others?
-        ClangASTType clang_type = value->GetClangType();
-        if (!clang_type)
+        CompilerType compiler_type = value->GetCompilerType();
+        if (!compiler_type)
             return false;
         bool is_signed;
 
-        if (clang_type.IsIntegerType (is_signed))
+        if (compiler_type.IsIntegerType (is_signed))
         {
             ReadIntegerArgument(value->GetScalar(),
-                                clang_type.GetBitSize(&thread),
+                                compiler_type.GetBitSize(&thread),
                                 is_signed,
                                 thread,
                                 argument_register_ids,
                                 current_argument_register,
                                 current_stack_argument);
         }
-        else if (clang_type.IsPointerType ())
+        else if (compiler_type.IsPointerType ())
         {
             ReadIntegerArgument(value->GetScalar(),
-                                clang_type.GetBitSize(&thread),
+                                compiler_type.GetBitSize(&thread),
                                 false,
                                 thread,
                                 argument_register_ids,
@@ -476,8 +433,8 @@ ABISysV_ppc::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjec
         return error;
     }
 
-    ClangASTType clang_type = new_value_sp->GetClangType();
-    if (!clang_type)
+    CompilerType compiler_type = new_value_sp->GetCompilerType();
+    if (!compiler_type)
     {
         error.SetErrorString ("Null clang type for return value.");
         return error;
@@ -492,7 +449,7 @@ ABISysV_ppc::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjec
     RegisterContext *reg_ctx = thread->GetRegisterContext().get();
 
     bool set_it_simple = false;
-    if (clang_type.IsIntegerType (is_signed) || clang_type.IsPointerType())
+    if (compiler_type.IsIntegerType (is_signed) || compiler_type.IsPointerType())
     {
         const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoByName("r3", 0);
 
@@ -518,13 +475,13 @@ ABISysV_ppc::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjec
         }
 
     }
-    else if (clang_type.IsFloatingPointType (count, is_complex))
+    else if (compiler_type.IsFloatingPointType (count, is_complex))
     {
         if (is_complex)
             error.SetErrorString ("We don't support returning complex values at present");
         else
         {
-            size_t bit_width = clang_type.GetBitSize(frame_sp.get());
+            size_t bit_width = compiler_type.GetBitSize(frame_sp.get());
             if (bit_width <= 64)
             {
                 DataExtractor data;
@@ -563,22 +520,22 @@ ABISysV_ppc::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjec
 
 ValueObjectSP
 ABISysV_ppc::GetReturnValueObjectSimple (Thread &thread,
-                                            ClangASTType &return_clang_type) const
+                                         CompilerType &return_compiler_type) const
 {
     ValueObjectSP return_valobj_sp;
     Value value;
 
-    if (!return_clang_type)
+    if (!return_compiler_type)
         return return_valobj_sp;
 
     //value.SetContext (Value::eContextTypeClangType, return_value_type);
-    value.SetClangType (return_clang_type);
+    value.SetCompilerType (return_compiler_type);
 
     RegisterContext *reg_ctx = thread.GetRegisterContext().get();
     if (!reg_ctx)
         return return_valobj_sp;
 
-    const uint32_t type_flags = return_clang_type.GetTypeInfo ();
+    const uint32_t type_flags = return_compiler_type.GetTypeInfo ();
     if (type_flags & eTypeIsScalar)
     {
         value.SetValueType(Value::eValueTypeScalar);
@@ -588,7 +545,7 @@ ABISysV_ppc::GetReturnValueObjectSimple (Thread &thread,
         {
             // Extract the register context so we can read arguments from registers
 
-            const size_t byte_size = return_clang_type.GetByteSize(nullptr);
+            const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
             uint64_t raw_value = thread.GetRegisterContext()->ReadRegisterAsUnsigned(reg_ctx->GetRegisterInfoByName("r3", 0), 0);
             const bool is_signed = (type_flags & eTypeIsSigned) != 0;
             switch (byte_size)
@@ -637,7 +594,7 @@ ABISysV_ppc::GetReturnValueObjectSimple (Thread &thread,
             }
             else
             {
-                const size_t byte_size = return_clang_type.GetByteSize(nullptr);
+                const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
                 if (byte_size <= sizeof(long double))
                 {
                     const RegisterInfo *f1_info = reg_ctx->GetRegisterInfoByName("f1", 0);
@@ -681,7 +638,7 @@ ABISysV_ppc::GetReturnValueObjectSimple (Thread &thread,
     }
     else if (type_flags & eTypeIsVector)
     {
-        const size_t byte_size = return_clang_type.GetByteSize(nullptr);
+        const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
         if (byte_size > 0)
         {
 
@@ -709,7 +666,7 @@ ABISysV_ppc::GetReturnValueObjectSimple (Thread &thread,
                                                     byte_order,
                                                     process_sp->GetTarget().GetArchitecture().GetAddressByteSize());
                                 return_valobj_sp = ValueObjectConstResult::Create (&thread,
-                                                                                   return_clang_type,
+                                                                                   return_compiler_type,
                                                                                    ConstString(""),
                                                                                    data);
                             }
@@ -724,15 +681,15 @@ ABISysV_ppc::GetReturnValueObjectSimple (Thread &thread,
 }
 
 ValueObjectSP
-ABISysV_ppc::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clang_type) const
+ABISysV_ppc::GetReturnValueObjectImpl (Thread &thread, CompilerType &return_compiler_type) const
 {
     ValueObjectSP return_valobj_sp;
 
-    if (!return_clang_type)
+    if (!return_compiler_type)
         return return_valobj_sp;
 
     ExecutionContext exe_ctx (thread.shared_from_this());
-    return_valobj_sp = GetReturnValueObjectSimple(thread, return_clang_type);
+    return_valobj_sp = GetReturnValueObjectSimple(thread, return_compiler_type);
     if (return_valobj_sp)
         return return_valobj_sp;
 
@@ -740,8 +697,8 @@ ABISysV_ppc::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clan
     if (!reg_ctx_sp)
         return return_valobj_sp;
 
-    const size_t bit_width = return_clang_type.GetBitSize(&thread);
-    if (return_clang_type.IsAggregateType())
+    const size_t bit_width = return_compiler_type.GetBitSize(&thread);
+    if (return_compiler_type.IsAggregateType())
     {
         Target *target = exe_ctx.GetTargetPtr();
         bool is_memory = true;
@@ -768,7 +725,7 @@ ABISysV_ppc::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clan
             uint32_t fp_bytes = 0;       // Tracks how much of the xmm registers we've consumed so far
             uint32_t integer_bytes = 0;  // Tracks how much of the r3/rds registers we've consumed so far
 
-            const uint32_t num_children = return_clang_type.GetNumFields ();
+            const uint32_t num_children = return_compiler_type.GetNumFields ();
 
             // Since we are in the small struct regime, assume we are not in memory.
             is_memory = false;
@@ -781,8 +738,8 @@ ABISysV_ppc::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clan
                 bool is_complex;
                 uint32_t count;
 
-                ClangASTType field_clang_type = return_clang_type.GetFieldAtIndex (idx, name, &field_bit_offset, NULL, NULL);
-                const size_t field_bit_width = field_clang_type.GetBitSize(&thread);
+                CompilerType field_compiler_type = return_compiler_type.GetFieldAtIndex (idx, name, &field_bit_offset, NULL, NULL);
+                const size_t field_bit_width = field_compiler_type.GetBitSize(&thread);
 
                 // If there are any unaligned fields, this is stored in memory.
                 if (field_bit_offset % field_bit_width != 0)
@@ -798,7 +755,7 @@ ABISysV_ppc::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clan
                 DataExtractor *copy_from_extractor = NULL;
                 uint32_t       copy_from_offset    = 0;
 
-                if (field_clang_type.IsIntegerType (is_signed) || field_clang_type.IsPointerType ())
+                if (field_compiler_type.IsIntegerType (is_signed) || field_compiler_type.IsPointerType ())
                 {
                     if (integer_bytes < 8)
                     {
@@ -831,7 +788,7 @@ ABISysV_ppc::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clan
                         return return_valobj_sp;
                     }
                 }
-                else if (field_clang_type.IsFloatingPointType (count, is_complex))
+                else if (field_compiler_type.IsFloatingPointType (count, is_complex))
                 {
                     // Structs with long doubles are always passed in memory.
                     if (field_bit_width == 128)
@@ -858,12 +815,12 @@ ABISysV_ppc::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clan
                             else
                             {
                                 uint64_t next_field_bit_offset = 0;
-                                ClangASTType next_field_clang_type = return_clang_type.GetFieldAtIndex (idx + 1,
+                                CompilerType next_field_compiler_type = return_compiler_type.GetFieldAtIndex (idx + 1,
                                                                                                         name,
                                                                                                         &next_field_bit_offset,
                                                                                                         NULL,
                                                                                                         NULL);
-                                if (next_field_clang_type.IsIntegerType (is_signed))
+                                if (next_field_compiler_type.IsIntegerType (is_signed))
                                     in_gpr = true;
                                 else
                                 {
@@ -882,12 +839,12 @@ ABISysV_ppc::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clan
                             else
                             {
                                 uint64_t prev_field_bit_offset = 0;
-                                ClangASTType prev_field_clang_type = return_clang_type.GetFieldAtIndex (idx - 1,
+                                CompilerType prev_field_compiler_type = return_compiler_type.GetFieldAtIndex (idx - 1,
                                                                                                         name,
                                                                                                         &prev_field_bit_offset,
                                                                                                         NULL,
                                                                                                         NULL);
-                                if (prev_field_clang_type.IsIntegerType (is_signed))
+                                if (prev_field_compiler_type.IsIntegerType (is_signed))
                                     in_gpr = true;
                                 else
                                 {
@@ -946,7 +903,7 @@ ABISysV_ppc::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clan
             {
                 // The result is in our data buffer.  Let's make a variable object out of it:
                 return_valobj_sp = ValueObjectConstResult::Create (&thread,
-                                                                   return_clang_type,
+                                                                   return_compiler_type,
                                                                    ConstString(""),
                                                                    return_ext);
             }
@@ -965,7 +922,7 @@ ABISysV_ppc::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clan
             return_valobj_sp = ValueObjectMemory::Create (&thread,
                                                           "",
                                                           Address (storage_addr, NULL),
-                                                          return_clang_type);
+                                                          return_compiler_type);
         }
     }
 
@@ -978,9 +935,9 @@ ABISysV_ppc::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan)
     unwind_plan.Clear();
     unwind_plan.SetRegisterKind (eRegisterKindDWARF);
 
-    uint32_t lr_reg_num = gcc_dwarf_lr;
-    uint32_t sp_reg_num = gcc_dwarf_r1;
-    uint32_t pc_reg_num = gcc_dwarf_pc;
+    uint32_t lr_reg_num = dwarf_lr;
+    uint32_t sp_reg_num = dwarf_r1;
+    uint32_t pc_reg_num = dwarf_pc;
 
     UnwindPlan::RowSP row(new UnwindPlan::Row);
 
@@ -1005,8 +962,8 @@ ABISysV_ppc::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
     unwind_plan.Clear();
     unwind_plan.SetRegisterKind (eRegisterKindDWARF);
 
-    uint32_t sp_reg_num = gcc_dwarf_r1;
-    uint32_t pc_reg_num = gcc_dwarf_lr;
+    uint32_t sp_reg_num = dwarf_r1;
+    uint32_t pc_reg_num = dwarf_lr;
 
     UnwindPlan::RowSP row(new UnwindPlan::Row);
 
@@ -1020,7 +977,7 @@ ABISysV_ppc::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
     unwind_plan.SetSourceName ("ppc default unwind plan");
     unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
     unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolNo);
-    unwind_plan.SetReturnAddressRegister(gcc_dwarf_lr);
+    unwind_plan.SetReturnAddressRegister(dwarf_lr);
     return true;
 }
 
diff --git a/source/Plugins/ABI/SysV-ppc/ABISysV_ppc.h b/source/Plugins/ABI/SysV-ppc/ABISysV_ppc.h
index a7aad300e2979..99ee755631c22 100644
--- a/source/Plugins/ABI/SysV-ppc/ABISysV_ppc.h
+++ b/source/Plugins/ABI/SysV-ppc/ABISysV_ppc.h
@@ -21,52 +21,37 @@ class ABISysV_ppc :
     public lldb_private::ABI
 {
 public:
+    ~ABISysV_ppc() override = default;
 
-    ~ABISysV_ppc()
-    {
-    }
+    size_t
+    GetRedZoneSize() const override;
 
-    virtual size_t
-    GetRedZoneSize () const;
-
-    virtual bool
-    PrepareTrivialCall (lldb_private::Thread &thread, 
-                        lldb::addr_t sp,
-                        lldb::addr_t functionAddress,
-                        lldb::addr_t returnAddress, 
-                        llvm::ArrayRef<lldb::addr_t> args) const;
+    bool
+    PrepareTrivialCall(lldb_private::Thread &thread,
+                       lldb::addr_t sp,
+                       lldb::addr_t functionAddress,
+                       lldb::addr_t returnAddress,
+                       llvm::ArrayRef<lldb::addr_t> args) const override;
     
-    virtual bool
-    GetArgumentValues (lldb_private::Thread &thread,
-                       lldb_private::ValueList &values) const;
+    bool
+    GetArgumentValues(lldb_private::Thread &thread,
+                      lldb_private::ValueList &values) const override;
     
-    virtual lldb_private::Error
-    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value);
+    lldb_private::Error
+    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value) override;
 
-protected:
     lldb::ValueObjectSP
-    GetReturnValueObjectSimple (lldb_private::Thread &thread,
-                                lldb_private::ClangASTType &ast_type) const;
-    
-public:    
-    virtual lldb::ValueObjectSP
-    GetReturnValueObjectImpl (lldb_private::Thread &thread,
-                          lldb_private::ClangASTType &type) const;
+    GetReturnValueObjectImpl(lldb_private::Thread &thread,
+                             lldb_private::CompilerType &type) const override;
 
-    virtual bool
-    CreateFunctionEntryUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
     
-    virtual bool
-    CreateDefaultUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
         
-    virtual bool
-    RegisterIsVolatile (const lldb_private::RegisterInfo *reg_info);
-    
-    virtual bool
-    StackUsesFrames ()
-    {
-        return true;
-    }
+    bool
+    RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
     
     // The SysV ppc ABI requires that stack frames be 16 byte aligned.
     // When there is a trap handler on the stack, e.g. _sigtramp in userland
@@ -78,8 +63,8 @@ public:
     // Whitelisting the trap handlers for user space would be easy (_sigtramp) but
     // in other environments there can be a large number of different functions
     // involved in async traps.
-    virtual bool
-    CallFrameAddressIsValid (lldb::addr_t cfa)
+    bool
+    CallFrameAddressIsValid(lldb::addr_t cfa) override
     {
         // Make sure the stack call frame addresses are 8 byte aligned
         if (cfa & (8ull - 1ull))
@@ -89,25 +74,21 @@ public:
         return true;
     }
     
-    virtual bool
-    CodeAddressIsValid (lldb::addr_t pc)
+    bool
+    CodeAddressIsValid(lldb::addr_t pc) override
     {
         // We have a 64 bit address space, so anything is valid as opcodes
         // aren't fixed width...
         return true;
     }
 
-    virtual bool
-    FunctionCallsChangeCFA ()
-    {
-        return true;
-    }
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoArray(uint32_t &count) override;
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoArray (uint32_t &count);
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
+
     static void
     Initialize();
 
@@ -123,21 +104,30 @@ public:
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
 
-    virtual uint32_t
-    GetPluginVersion();
+    lldb_private::ConstString
+    GetPluginName() override;
+
+    uint32_t
+    GetPluginVersion() override;
 
 protected:
     void
     CreateRegisterMapIfNeeded ();
 
+    lldb::ValueObjectSP
+    GetReturnValueObjectSimple(lldb_private::Thread &thread,
+                               lldb_private::CompilerType &ast_type) const;
+
     bool
     RegisterIsCalleeSaved (const lldb_private::RegisterInfo *reg_info);
 
 private:
-    ABISysV_ppc() : lldb_private::ABI() { } // Call CreateInstance instead.
+    ABISysV_ppc() : 
+        lldb_private::ABI() 
+    {
+         // Call CreateInstance instead.
+    }
 };
 
-#endif  // liblldb_ABI_h_
+#endif // liblldb_ABISysV_ppc_h_
diff --git a/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.cpp b/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.cpp
index eb0d7c00070f4..96c54ce97eec2 100644
--- a/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.cpp
+++ b/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.cpp
@@ -20,7 +20,6 @@
 #include "lldb/Core/ValueObjectConstResult.h"
 #include "lldb/Core/ValueObjectRegister.h"
 #include "lldb/Core/ValueObjectMemory.h"
-#include "lldb/Symbol/ClangASTContext.h"
 #include "lldb/Symbol/UnwindPlan.h"
 #include "lldb/Target/Target.h"
 #include "lldb/Target/Process.h"
@@ -34,120 +33,79 @@
 using namespace lldb;
 using namespace lldb_private;
 
-enum gcc_dwarf_regnums
+enum dwarf_regnums
 {
-    gcc_dwarf_r0 = 0,
-    gcc_dwarf_r1,
-    gcc_dwarf_r2,
-    gcc_dwarf_r3,
-    gcc_dwarf_r4,
-    gcc_dwarf_r5,
-    gcc_dwarf_r6,
-    gcc_dwarf_r7,
-    gcc_dwarf_r8,
-    gcc_dwarf_r9,
-    gcc_dwarf_r10,
-    gcc_dwarf_r11,
-    gcc_dwarf_r12,
-    gcc_dwarf_r13,
-    gcc_dwarf_r14,
-    gcc_dwarf_r15,
-    gcc_dwarf_r16,
-    gcc_dwarf_r17,
-    gcc_dwarf_r18,
-    gcc_dwarf_r19,
-    gcc_dwarf_r20,
-    gcc_dwarf_r21,
-    gcc_dwarf_r22,
-    gcc_dwarf_r23,
-    gcc_dwarf_r24,
-    gcc_dwarf_r25,
-    gcc_dwarf_r26,
-    gcc_dwarf_r27,
-    gcc_dwarf_r28,
-    gcc_dwarf_r29,
-    gcc_dwarf_r30,
-    gcc_dwarf_r31,
-    gcc_dwarf_f0,
-    gcc_dwarf_f1,
-    gcc_dwarf_f2,
-    gcc_dwarf_f3,
-    gcc_dwarf_f4,
-    gcc_dwarf_f5,
-    gcc_dwarf_f6,
-    gcc_dwarf_f7,
-    gcc_dwarf_f8,
-    gcc_dwarf_f9,
-    gcc_dwarf_f10,
-    gcc_dwarf_f11,
-    gcc_dwarf_f12,
-    gcc_dwarf_f13,
-    gcc_dwarf_f14,
-    gcc_dwarf_f15,
-    gcc_dwarf_f16,
-    gcc_dwarf_f17,
-    gcc_dwarf_f18,
-    gcc_dwarf_f19,
-    gcc_dwarf_f20,
-    gcc_dwarf_f21,
-    gcc_dwarf_f22,
-    gcc_dwarf_f23,
-    gcc_dwarf_f24,
-    gcc_dwarf_f25,
-    gcc_dwarf_f26,
-    gcc_dwarf_f27,
-    gcc_dwarf_f28,
-    gcc_dwarf_f29,
-    gcc_dwarf_f30,
-    gcc_dwarf_f31,
-    gcc_dwarf_cr,
-    gcc_dwarf_fpscr,
-    gcc_dwarf_xer = 101,
-    gcc_dwarf_lr = 108,
-    gcc_dwarf_ctr,
-    gcc_dwarf_pc,
-    gcc_dwarf_cfa,
-};
-
-enum gdb_regnums
-{
-    gdb_r0 = 0,
-    gdb_r1,
-    gdb_r2,
-    gdb_r3,
-    gdb_r4,
-    gdb_r5,
-    gdb_r6,
-    gdb_r7,
-    gdb_r8,
-    gdb_r9,
-    gdb_r10,
-    gdb_r11,
-    gdb_r12,
-    gdb_r13,
-    gdb_r14,
-    gdb_r15,
-    gdb_r16,
-    gdb_r17,
-    gdb_r18,
-    gdb_r19,
-    gdb_r20,
-    gdb_r21,
-    gdb_r22,
-    gdb_r23,
-    gdb_r24,
-    gdb_r25,
-    gdb_r26,
-    gdb_r27,
-    gdb_r28,
-    gdb_r29,
-    gdb_r30,
-    gdb_r31,
-    gdb_lr,
-    gdb_cr,
-    gdb_xer,
-    gdb_ctr,
-    gdb_pc,
+    dwarf_r0 = 0,
+    dwarf_r1,
+    dwarf_r2,
+    dwarf_r3,
+    dwarf_r4,
+    dwarf_r5,
+    dwarf_r6,
+    dwarf_r7,
+    dwarf_r8,
+    dwarf_r9,
+    dwarf_r10,
+    dwarf_r11,
+    dwarf_r12,
+    dwarf_r13,
+    dwarf_r14,
+    dwarf_r15,
+    dwarf_r16,
+    dwarf_r17,
+    dwarf_r18,
+    dwarf_r19,
+    dwarf_r20,
+    dwarf_r21,
+    dwarf_r22,
+    dwarf_r23,
+    dwarf_r24,
+    dwarf_r25,
+    dwarf_r26,
+    dwarf_r27,
+    dwarf_r28,
+    dwarf_r29,
+    dwarf_r30,
+    dwarf_r31,
+    dwarf_f0,
+    dwarf_f1,
+    dwarf_f2,
+    dwarf_f3,
+    dwarf_f4,
+    dwarf_f5,
+    dwarf_f6,
+    dwarf_f7,
+    dwarf_f8,
+    dwarf_f9,
+    dwarf_f10,
+    dwarf_f11,
+    dwarf_f12,
+    dwarf_f13,
+    dwarf_f14,
+    dwarf_f15,
+    dwarf_f16,
+    dwarf_f17,
+    dwarf_f18,
+    dwarf_f19,
+    dwarf_f20,
+    dwarf_f21,
+    dwarf_f22,
+    dwarf_f23,
+    dwarf_f24,
+    dwarf_f25,
+    dwarf_f26,
+    dwarf_f27,
+    dwarf_f28,
+    dwarf_f29,
+    dwarf_f30,
+    dwarf_f31,
+    dwarf_cr,
+    dwarf_fpscr,
+    dwarf_xer = 101,
+    dwarf_lr = 108,
+    dwarf_ctr,
+    dwarf_pc,
+    dwarf_cfa,
 };
 
 
@@ -158,45 +116,45 @@ enum gdb_regnums
 static const RegisterInfo
 g_register_infos[] =
 {
-    // General purpose registers.                 GCC,                  DWARF,              Generic,                GDB
-    DEFINE_GPR(r0,       NULL,  gcc_dwarf_r0,    gcc_dwarf_r0,    LLDB_INVALID_REGNUM,    gdb_r0),
-    DEFINE_GPR(r1,       "sp",  gcc_dwarf_r1,    gcc_dwarf_r1,    LLDB_REGNUM_GENERIC_SP, gdb_r1),
-    DEFINE_GPR(r2,       NULL,  gcc_dwarf_r2,    gcc_dwarf_r2,    LLDB_INVALID_REGNUM,    gdb_r2),
-    DEFINE_GPR(r3,       "arg1",gcc_dwarf_r3,    gcc_dwarf_r3,    LLDB_REGNUM_GENERIC_ARG1, gdb_r3),
-    DEFINE_GPR(r4,       "arg2",gcc_dwarf_r4,    gcc_dwarf_r4,    LLDB_REGNUM_GENERIC_ARG2 ,gdb_r4),
-    DEFINE_GPR(r5,       "arg3",gcc_dwarf_r5,    gcc_dwarf_r5,    LLDB_REGNUM_GENERIC_ARG3, gdb_r5),
-    DEFINE_GPR(r6,       "arg4",gcc_dwarf_r6,    gcc_dwarf_r6,    LLDB_REGNUM_GENERIC_ARG4, gdb_r6),
-    DEFINE_GPR(r7,       "arg5",gcc_dwarf_r7,    gcc_dwarf_r7,    LLDB_REGNUM_GENERIC_ARG5, gdb_r7),
-    DEFINE_GPR(r8,       "arg6",gcc_dwarf_r8,    gcc_dwarf_r8,    LLDB_REGNUM_GENERIC_ARG6, gdb_r8),
-    DEFINE_GPR(r9,       "arg7",gcc_dwarf_r9,    gcc_dwarf_r9,    LLDB_REGNUM_GENERIC_ARG7, gdb_r9),
-    DEFINE_GPR(r10,      "arg8",gcc_dwarf_r10,   gcc_dwarf_r10,   LLDB_REGNUM_GENERIC_ARG8, gdb_r10),
-    DEFINE_GPR(r11,      NULL,  gcc_dwarf_r11,   gcc_dwarf_r11,   LLDB_INVALID_REGNUM,    gdb_r11),
-    DEFINE_GPR(r12,      NULL,  gcc_dwarf_r12,   gcc_dwarf_r12,   LLDB_INVALID_REGNUM,    gdb_r12),
-    DEFINE_GPR(r13,      NULL,  gcc_dwarf_r13,   gcc_dwarf_r13,   LLDB_INVALID_REGNUM,    gdb_r13),
-    DEFINE_GPR(r14,      NULL,  gcc_dwarf_r14,   gcc_dwarf_r14,   LLDB_INVALID_REGNUM,    gdb_r14),
-    DEFINE_GPR(r15,      NULL,  gcc_dwarf_r15,   gcc_dwarf_r15,   LLDB_INVALID_REGNUM,    gdb_r15),
-    DEFINE_GPR(r16,      NULL,  gcc_dwarf_r16,   gcc_dwarf_r16,   LLDB_INVALID_REGNUM,    gdb_r16),
-    DEFINE_GPR(r17,      NULL,  gcc_dwarf_r17,   gcc_dwarf_r17,   LLDB_INVALID_REGNUM,    gdb_r17),
-    DEFINE_GPR(r18,      NULL,  gcc_dwarf_r18,   gcc_dwarf_r18,   LLDB_INVALID_REGNUM,    gdb_r18),
-    DEFINE_GPR(r19,      NULL,  gcc_dwarf_r19,   gcc_dwarf_r19,   LLDB_INVALID_REGNUM,    gdb_r19),
-    DEFINE_GPR(r20,      NULL,  gcc_dwarf_r20,   gcc_dwarf_r20,   LLDB_INVALID_REGNUM,    gdb_r20),
-    DEFINE_GPR(r21,      NULL,  gcc_dwarf_r21,   gcc_dwarf_r21,   LLDB_INVALID_REGNUM,    gdb_r21),
-    DEFINE_GPR(r22,      NULL,  gcc_dwarf_r22,   gcc_dwarf_r22,   LLDB_INVALID_REGNUM,    gdb_r22),
-    DEFINE_GPR(r23,      NULL,  gcc_dwarf_r23,   gcc_dwarf_r23,   LLDB_INVALID_REGNUM,    gdb_r23),
-    DEFINE_GPR(r24,      NULL,  gcc_dwarf_r24,   gcc_dwarf_r24,   LLDB_INVALID_REGNUM,    gdb_r24),
-    DEFINE_GPR(r25,      NULL,  gcc_dwarf_r25,   gcc_dwarf_r25,   LLDB_INVALID_REGNUM,    gdb_r25),
-    DEFINE_GPR(r26,      NULL,  gcc_dwarf_r26,   gcc_dwarf_r26,   LLDB_INVALID_REGNUM,    gdb_r26),
-    DEFINE_GPR(r27,      NULL,  gcc_dwarf_r27,   gcc_dwarf_r27,   LLDB_INVALID_REGNUM,    gdb_r27),
-    DEFINE_GPR(r28,      NULL,  gcc_dwarf_r28,   gcc_dwarf_r28,   LLDB_INVALID_REGNUM,    gdb_r28),
-    DEFINE_GPR(r29,      NULL,  gcc_dwarf_r29,   gcc_dwarf_r29,   LLDB_INVALID_REGNUM,    gdb_r29),
-    DEFINE_GPR(r30,      NULL,  gcc_dwarf_r30,   gcc_dwarf_r30,   LLDB_INVALID_REGNUM,    gdb_r30),
-    DEFINE_GPR(r31,      NULL,  gcc_dwarf_r31,   gcc_dwarf_r31,   LLDB_INVALID_REGNUM,    gdb_r31),
-    DEFINE_GPR(lr,       "lr",  gcc_dwarf_lr,    gcc_dwarf_lr,    LLDB_REGNUM_GENERIC_RA, gdb_lr),
-    DEFINE_GPR(cr,       "cr",  gcc_dwarf_cr,    gcc_dwarf_cr,    LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM),
-    DEFINE_GPR(xer,      "xer", gcc_dwarf_xer,   gcc_dwarf_xer,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(ctr,      "ctr", gcc_dwarf_ctr,   gcc_dwarf_ctr,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(pc,       "pc",  gcc_dwarf_pc,    gcc_dwarf_pc,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
-    { NULL, NULL, 8, 0, eEncodingUint, eFormatHex, { gcc_dwarf_cfa, gcc_dwarf_cfa, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, NULL, NULL},
+    // General purpose registers.            eh_frame,                  DWARF,              Generic,     Process Plugin
+    DEFINE_GPR(r0,       NULL,  dwarf_r0,    dwarf_r0,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r1,       "sp",  dwarf_r1,    dwarf_r1,    LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r2,       NULL,  dwarf_r2,    dwarf_r2,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r3,       "arg1",dwarf_r3,    dwarf_r3,    LLDB_REGNUM_GENERIC_ARG1, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r4,       "arg2",dwarf_r4,    dwarf_r4,    LLDB_REGNUM_GENERIC_ARG2 ,LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r5,       "arg3",dwarf_r5,    dwarf_r5,    LLDB_REGNUM_GENERIC_ARG3, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r6,       "arg4",dwarf_r6,    dwarf_r6,    LLDB_REGNUM_GENERIC_ARG4, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r7,       "arg5",dwarf_r7,    dwarf_r7,    LLDB_REGNUM_GENERIC_ARG5, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r8,       "arg6",dwarf_r8,    dwarf_r8,    LLDB_REGNUM_GENERIC_ARG6, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r9,       "arg7",dwarf_r9,    dwarf_r9,    LLDB_REGNUM_GENERIC_ARG7, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r10,      "arg8",dwarf_r10,   dwarf_r10,   LLDB_REGNUM_GENERIC_ARG8, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r11,      NULL,  dwarf_r11,   dwarf_r11,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r12,      NULL,  dwarf_r12,   dwarf_r12,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r13,      NULL,  dwarf_r13,   dwarf_r13,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r14,      NULL,  dwarf_r14,   dwarf_r14,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r15,      NULL,  dwarf_r15,   dwarf_r15,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r16,      NULL,  dwarf_r16,   dwarf_r16,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r17,      NULL,  dwarf_r17,   dwarf_r17,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r18,      NULL,  dwarf_r18,   dwarf_r18,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r19,      NULL,  dwarf_r19,   dwarf_r19,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r20,      NULL,  dwarf_r20,   dwarf_r20,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r21,      NULL,  dwarf_r21,   dwarf_r21,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r22,      NULL,  dwarf_r22,   dwarf_r22,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r23,      NULL,  dwarf_r23,   dwarf_r23,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r24,      NULL,  dwarf_r24,   dwarf_r24,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r25,      NULL,  dwarf_r25,   dwarf_r25,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r26,      NULL,  dwarf_r26,   dwarf_r26,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r27,      NULL,  dwarf_r27,   dwarf_r27,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r28,      NULL,  dwarf_r28,   dwarf_r28,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r29,      NULL,  dwarf_r29,   dwarf_r29,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r30,      NULL,  dwarf_r30,   dwarf_r30,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r31,      NULL,  dwarf_r31,   dwarf_r31,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(lr,       "lr",  dwarf_lr,    dwarf_lr,    LLDB_REGNUM_GENERIC_RA, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(cr,       "cr",  dwarf_cr,    dwarf_cr,    LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(xer,      "xer", dwarf_xer,   dwarf_xer,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(ctr,      "ctr", dwarf_ctr,   dwarf_ctr,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(pc,       "pc",  dwarf_pc,    dwarf_pc,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
+    { NULL, NULL, 8, 0, eEncodingUint, eFormatHex, { dwarf_cfa, dwarf_cfa, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM}, NULL, NULL},
 };
 
 static const uint32_t k_num_register_infos = llvm::array_lengthof(g_register_infos);
@@ -436,25 +394,25 @@ ABISysV_ppc64::GetArgumentValues (Thread &thread,
 
         // We currently only support extracting values with Clang QualTypes.
         // Do we care about others?
-        ClangASTType clang_type = value->GetClangType();
-        if (!clang_type)
+        CompilerType compiler_type = value->GetCompilerType();
+        if (!compiler_type)
             return false;
         bool is_signed;
 
-        if (clang_type.IsIntegerType (is_signed))
+        if (compiler_type.IsIntegerType (is_signed))
         {
             ReadIntegerArgument(value->GetScalar(),
-                                clang_type.GetBitSize(&thread),
+                                compiler_type.GetBitSize(&thread),
                                 is_signed,
                                 thread,
                                 argument_register_ids,
                                 current_argument_register,
                                 current_stack_argument);
         }
-        else if (clang_type.IsPointerType ())
+        else if (compiler_type.IsPointerType ())
         {
             ReadIntegerArgument(value->GetScalar(),
-                                clang_type.GetBitSize(&thread),
+                                compiler_type.GetBitSize(&thread),
                                 false,
                                 thread,
                                 argument_register_ids,
@@ -476,8 +434,8 @@ ABISysV_ppc64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObj
         return error;
     }
 
-    ClangASTType clang_type = new_value_sp->GetClangType();
-    if (!clang_type)
+    CompilerType compiler_type = new_value_sp->GetCompilerType();
+    if (!compiler_type)
     {
         error.SetErrorString ("Null clang type for return value.");
         return error;
@@ -492,7 +450,7 @@ ABISysV_ppc64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObj
     RegisterContext *reg_ctx = thread->GetRegisterContext().get();
 
     bool set_it_simple = false;
-    if (clang_type.IsIntegerType (is_signed) || clang_type.IsPointerType())
+    if (compiler_type.IsIntegerType (is_signed) || compiler_type.IsPointerType())
     {
         const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoByName("r3", 0);
 
@@ -518,13 +476,13 @@ ABISysV_ppc64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObj
         }
 
     }
-    else if (clang_type.IsFloatingPointType (count, is_complex))
+    else if (compiler_type.IsFloatingPointType (count, is_complex))
     {
         if (is_complex)
             error.SetErrorString ("We don't support returning complex values at present");
         else
         {
-            size_t bit_width = clang_type.GetBitSize(frame_sp.get());
+            size_t bit_width = compiler_type.GetBitSize(frame_sp.get());
             if (bit_width <= 64)
             {
                 DataExtractor data;
@@ -563,22 +521,22 @@ ABISysV_ppc64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObj
 
 ValueObjectSP
 ABISysV_ppc64::GetReturnValueObjectSimple (Thread &thread,
-                                            ClangASTType &return_clang_type) const
+                                           CompilerType &return_compiler_type) const
 {
     ValueObjectSP return_valobj_sp;
     Value value;
 
-    if (!return_clang_type)
+    if (!return_compiler_type)
         return return_valobj_sp;
 
     //value.SetContext (Value::eContextTypeClangType, return_value_type);
-    value.SetClangType (return_clang_type);
+    value.SetCompilerType (return_compiler_type);
 
     RegisterContext *reg_ctx = thread.GetRegisterContext().get();
     if (!reg_ctx)
         return return_valobj_sp;
 
-    const uint32_t type_flags = return_clang_type.GetTypeInfo ();
+    const uint32_t type_flags = return_compiler_type.GetTypeInfo ();
     if (type_flags & eTypeIsScalar)
     {
         value.SetValueType(Value::eValueTypeScalar);
@@ -588,7 +546,7 @@ ABISysV_ppc64::GetReturnValueObjectSimple (Thread &thread,
         {
             // Extract the register context so we can read arguments from registers
 
-            const size_t byte_size = return_clang_type.GetByteSize(nullptr);
+            const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
             uint64_t raw_value = thread.GetRegisterContext()->ReadRegisterAsUnsigned(reg_ctx->GetRegisterInfoByName("r3", 0), 0);
             const bool is_signed = (type_flags & eTypeIsSigned) != 0;
             switch (byte_size)
@@ -637,7 +595,7 @@ ABISysV_ppc64::GetReturnValueObjectSimple (Thread &thread,
             }
             else
             {
-                const size_t byte_size = return_clang_type.GetByteSize(nullptr);
+                const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
                 if (byte_size <= sizeof(long double))
                 {
                     const RegisterInfo *f1_info = reg_ctx->GetRegisterInfoByName("f1", 0);
@@ -681,7 +639,7 @@ ABISysV_ppc64::GetReturnValueObjectSimple (Thread &thread,
     }
     else if (type_flags & eTypeIsVector)
     {
-        const size_t byte_size = return_clang_type.GetByteSize(nullptr);
+        const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
         if (byte_size > 0)
         {
 
@@ -709,7 +667,7 @@ ABISysV_ppc64::GetReturnValueObjectSimple (Thread &thread,
                                                     byte_order,
                                                     process_sp->GetTarget().GetArchitecture().GetAddressByteSize());
                                 return_valobj_sp = ValueObjectConstResult::Create (&thread,
-                                                                                   return_clang_type,
+                                                                                   return_compiler_type,
                                                                                    ConstString(""),
                                                                                    data);
                             }
@@ -724,15 +682,15 @@ ABISysV_ppc64::GetReturnValueObjectSimple (Thread &thread,
 }
 
 ValueObjectSP
-ABISysV_ppc64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clang_type) const
+ABISysV_ppc64::GetReturnValueObjectImpl (Thread &thread, CompilerType &return_compiler_type) const
 {
     ValueObjectSP return_valobj_sp;
 
-    if (!return_clang_type)
+    if (!return_compiler_type)
         return return_valobj_sp;
 
     ExecutionContext exe_ctx (thread.shared_from_this());
-    return_valobj_sp = GetReturnValueObjectSimple(thread, return_clang_type);
+    return_valobj_sp = GetReturnValueObjectSimple(thread, return_compiler_type);
     if (return_valobj_sp)
         return return_valobj_sp;
 
@@ -740,8 +698,8 @@ ABISysV_ppc64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cl
     if (!reg_ctx_sp)
         return return_valobj_sp;
 
-    const size_t bit_width = return_clang_type.GetBitSize(&thread);
-    if (return_clang_type.IsAggregateType())
+    const size_t bit_width = return_compiler_type.GetBitSize(&thread);
+    if (return_compiler_type.IsAggregateType())
     {
         Target *target = exe_ctx.GetTargetPtr();
         bool is_memory = true;
@@ -768,7 +726,7 @@ ABISysV_ppc64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cl
             uint32_t fp_bytes = 0;       // Tracks how much of the xmm registers we've consumed so far
             uint32_t integer_bytes = 0;  // Tracks how much of the r3/rds registers we've consumed so far
 
-            const uint32_t num_children = return_clang_type.GetNumFields ();
+            const uint32_t num_children = return_compiler_type.GetNumFields ();
 
             // Since we are in the small struct regime, assume we are not in memory.
             is_memory = false;
@@ -781,8 +739,8 @@ ABISysV_ppc64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cl
                 bool is_complex;
                 uint32_t count;
 
-                ClangASTType field_clang_type = return_clang_type.GetFieldAtIndex (idx, name, &field_bit_offset, NULL, NULL);
-                const size_t field_bit_width = field_clang_type.GetBitSize(&thread);
+                CompilerType field_compiler_type = return_compiler_type.GetFieldAtIndex (idx, name, &field_bit_offset, NULL, NULL);
+                const size_t field_bit_width = field_compiler_type.GetBitSize(&thread);
 
                 // If there are any unaligned fields, this is stored in memory.
                 if (field_bit_offset % field_bit_width != 0)
@@ -798,7 +756,7 @@ ABISysV_ppc64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cl
                 DataExtractor *copy_from_extractor = NULL;
                 uint32_t       copy_from_offset    = 0;
 
-                if (field_clang_type.IsIntegerType (is_signed) || field_clang_type.IsPointerType ())
+                if (field_compiler_type.IsIntegerType (is_signed) || field_compiler_type.IsPointerType ())
                 {
                     if (integer_bytes < 8)
                     {
@@ -831,7 +789,7 @@ ABISysV_ppc64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cl
                         return return_valobj_sp;
                     }
                 }
-                else if (field_clang_type.IsFloatingPointType (count, is_complex))
+                else if (field_compiler_type.IsFloatingPointType (count, is_complex))
                 {
                     // Structs with long doubles are always passed in memory.
                     if (field_bit_width == 128)
@@ -858,12 +816,12 @@ ABISysV_ppc64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cl
                             else
                             {
                                 uint64_t next_field_bit_offset = 0;
-                                ClangASTType next_field_clang_type = return_clang_type.GetFieldAtIndex (idx + 1,
+                                CompilerType next_field_compiler_type = return_compiler_type.GetFieldAtIndex (idx + 1,
                                                                                                         name,
                                                                                                         &next_field_bit_offset,
                                                                                                         NULL,
                                                                                                         NULL);
-                                if (next_field_clang_type.IsIntegerType (is_signed))
+                                if (next_field_compiler_type.IsIntegerType (is_signed))
                                     in_gpr = true;
                                 else
                                 {
@@ -882,12 +840,12 @@ ABISysV_ppc64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cl
                             else
                             {
                                 uint64_t prev_field_bit_offset = 0;
-                                ClangASTType prev_field_clang_type = return_clang_type.GetFieldAtIndex (idx - 1,
+                                CompilerType prev_field_compiler_type = return_compiler_type.GetFieldAtIndex (idx - 1,
                                                                                                         name,
                                                                                                         &prev_field_bit_offset,
                                                                                                         NULL,
                                                                                                         NULL);
-                                if (prev_field_clang_type.IsIntegerType (is_signed))
+                                if (prev_field_compiler_type.IsIntegerType (is_signed))
                                     in_gpr = true;
                                 else
                                 {
@@ -946,7 +904,7 @@ ABISysV_ppc64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cl
             {
                 // The result is in our data buffer.  Let's make a variable object out of it:
                 return_valobj_sp = ValueObjectConstResult::Create (&thread,
-                                                                   return_clang_type,
+                                                                   return_compiler_type,
                                                                    ConstString(""),
                                                                    return_ext);
             }
@@ -965,7 +923,7 @@ ABISysV_ppc64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_cl
             return_valobj_sp = ValueObjectMemory::Create (&thread,
                                                           "",
                                                           Address (storage_addr, NULL),
-                                                          return_clang_type);
+                                                          return_compiler_type);
         }
     }
 
@@ -978,9 +936,9 @@ ABISysV_ppc64::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan)
     unwind_plan.Clear();
     unwind_plan.SetRegisterKind (eRegisterKindDWARF);
 
-    uint32_t lr_reg_num = gcc_dwarf_lr;
-    uint32_t sp_reg_num = gcc_dwarf_r1;
-    uint32_t pc_reg_num = gcc_dwarf_pc;
+    uint32_t lr_reg_num = dwarf_lr;
+    uint32_t sp_reg_num = dwarf_r1;
+    uint32_t pc_reg_num = dwarf_pc;
 
     UnwindPlan::RowSP row(new UnwindPlan::Row);
 
@@ -1005,8 +963,8 @@ ABISysV_ppc64::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
     unwind_plan.Clear();
     unwind_plan.SetRegisterKind (eRegisterKindDWARF);
 
-    uint32_t sp_reg_num = gcc_dwarf_r1;
-    uint32_t pc_reg_num = gcc_dwarf_lr;
+    uint32_t sp_reg_num = dwarf_r1;
+    uint32_t pc_reg_num = dwarf_lr;
 
     UnwindPlan::RowSP row(new UnwindPlan::Row);
 
@@ -1015,13 +973,13 @@ ABISysV_ppc64::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
 
     row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * 2, true);
     row->SetRegisterLocationToIsCFAPlusOffset(sp_reg_num, 0, true);
-    row->SetRegisterLocationToAtCFAPlusOffset(gcc_dwarf_cr, ptr_size, true);
+    row->SetRegisterLocationToAtCFAPlusOffset(dwarf_cr, ptr_size, true);
 
     unwind_plan.AppendRow (row);
     unwind_plan.SetSourceName ("ppc64 default unwind plan");
     unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
     unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolNo);
-    unwind_plan.SetReturnAddressRegister(gcc_dwarf_lr);
+    unwind_plan.SetReturnAddressRegister(dwarf_lr);
     return true;
 }
 
diff --git a/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.h b/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.h
index d77cb9f1efe3b..b87f7938d5449 100644
--- a/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.h
+++ b/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.h
@@ -21,52 +21,37 @@ class ABISysV_ppc64 :
     public lldb_private::ABI
 {
 public:
+    ~ABISysV_ppc64() override = default;
 
-    ~ABISysV_ppc64()
-    {
-    }
+    size_t
+    GetRedZoneSize() const override;
 
-    virtual size_t
-    GetRedZoneSize () const;
-
-    virtual bool
-    PrepareTrivialCall (lldb_private::Thread &thread, 
-                        lldb::addr_t sp,
-                        lldb::addr_t functionAddress,
-                        lldb::addr_t returnAddress, 
-                        llvm::ArrayRef<lldb::addr_t> args) const;
+    bool
+    PrepareTrivialCall(lldb_private::Thread &thread,
+                       lldb::addr_t sp,
+                       lldb::addr_t functionAddress,
+                       lldb::addr_t returnAddress,
+                       llvm::ArrayRef<lldb::addr_t> args) const override;
     
-    virtual bool
-    GetArgumentValues (lldb_private::Thread &thread,
-                       lldb_private::ValueList &values) const;
+    bool
+    GetArgumentValues(lldb_private::Thread &thread,
+                      lldb_private::ValueList &values) const override;
     
-    virtual lldb_private::Error
-    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value);
+    lldb_private::Error
+    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value) override;
 
-protected:
     lldb::ValueObjectSP
-    GetReturnValueObjectSimple (lldb_private::Thread &thread,
-                                lldb_private::ClangASTType &ast_type) const;
-    
-public:    
-    virtual lldb::ValueObjectSP
-    GetReturnValueObjectImpl (lldb_private::Thread &thread,
-                          lldb_private::ClangASTType &type) const;
+    GetReturnValueObjectImpl(lldb_private::Thread &thread,
+                             lldb_private::CompilerType &type) const override;
 
-    virtual bool
-    CreateFunctionEntryUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
     
-    virtual bool
-    CreateDefaultUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
         
-    virtual bool
-    RegisterIsVolatile (const lldb_private::RegisterInfo *reg_info);
-    
-    virtual bool
-    StackUsesFrames ()
-    {
-        return true;
-    }
+    bool
+    RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
     
     // The SysV ppc64 ABI requires that stack frames be 16 byte aligned.
     // When there is a trap handler on the stack, e.g. _sigtramp in userland
@@ -78,8 +63,8 @@ public:
     // Whitelisting the trap handlers for user space would be easy (_sigtramp) but
     // in other environments there can be a large number of different functions
     // involved in async traps.
-    virtual bool
-    CallFrameAddressIsValid (lldb::addr_t cfa)
+    bool
+    CallFrameAddressIsValid(lldb::addr_t cfa) override
     {
         // Make sure the stack call frame addresses are 8 byte aligned
         if (cfa & (8ull - 1ull))
@@ -89,25 +74,21 @@ public:
         return true;
     }
     
-    virtual bool
-    CodeAddressIsValid (lldb::addr_t pc)
+    bool
+    CodeAddressIsValid(lldb::addr_t pc) override
     {
         // We have a 64 bit address space, so anything is valid as opcodes
         // aren't fixed width...
         return true;
     }
 
-    virtual bool
-    FunctionCallsChangeCFA ()
-    {
-        return true;
-    }
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoArray(uint32_t &count) override;
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoArray (uint32_t &count);
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
+
     static void
     Initialize();
 
@@ -123,21 +104,30 @@ public:
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
 
-    virtual uint32_t
-    GetPluginVersion();
+    lldb_private::ConstString
+    GetPluginName() override;
+
+    uint32_t
+    GetPluginVersion() override;
 
 protected:
     void
     CreateRegisterMapIfNeeded ();
 
+    lldb::ValueObjectSP
+    GetReturnValueObjectSimple(lldb_private::Thread &thread,
+                               lldb_private::CompilerType &ast_type) const;
+    
     bool
     RegisterIsCalleeSaved (const lldb_private::RegisterInfo *reg_info);
 
 private:
-    ABISysV_ppc64() : lldb_private::ABI() { } // Call CreateInstance instead.
+    ABISysV_ppc64() : 
+        lldb_private::ABI() 
+    {
+         // Call CreateInstance instead.
+    }
 };
 
-#endif  // liblldb_ABI_h_
+#endif // liblldb_ABISysV_ppc64_h_
diff --git a/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.cpp b/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.cpp
index 1d63628466c23..11e383d269c3e 100644
--- a/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.cpp
+++ b/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.cpp
@@ -20,7 +20,6 @@
 #include "lldb/Core/ValueObjectConstResult.h"
 #include "lldb/Core/ValueObjectRegister.h"
 #include "lldb/Core/ValueObjectMemory.h"
-#include "lldb/Symbol/ClangASTContext.h"
 #include "lldb/Symbol/UnwindPlan.h"
 #include "lldb/Target/Target.h"
 #include "lldb/Target/Process.h"
@@ -34,222 +33,144 @@
 using namespace lldb;
 using namespace lldb_private;
 
-enum gcc_dwarf_regnums
+enum dwarf_regnums
 {
-    gcc_dwarf_rax = 0,
-    gcc_dwarf_rdx,
-    gcc_dwarf_rcx,
-    gcc_dwarf_rbx,
-    gcc_dwarf_rsi,
-    gcc_dwarf_rdi,
-    gcc_dwarf_rbp,
-    gcc_dwarf_rsp,
-    gcc_dwarf_r8,
-    gcc_dwarf_r9,
-    gcc_dwarf_r10,
-    gcc_dwarf_r11,
-    gcc_dwarf_r12,
-    gcc_dwarf_r13,
-    gcc_dwarf_r14,
-    gcc_dwarf_r15,
-    gcc_dwarf_rip,
-    gcc_dwarf_xmm0,
-    gcc_dwarf_xmm1,
-    gcc_dwarf_xmm2,
-    gcc_dwarf_xmm3,
-    gcc_dwarf_xmm4,
-    gcc_dwarf_xmm5,
-    gcc_dwarf_xmm6,
-    gcc_dwarf_xmm7,
-    gcc_dwarf_xmm8,
-    gcc_dwarf_xmm9,
-    gcc_dwarf_xmm10,
-    gcc_dwarf_xmm11,
-    gcc_dwarf_xmm12,
-    gcc_dwarf_xmm13,
-    gcc_dwarf_xmm14,
-    gcc_dwarf_xmm15,
-    gcc_dwarf_stmm0,
-    gcc_dwarf_stmm1,
-    gcc_dwarf_stmm2,
-    gcc_dwarf_stmm3,
-    gcc_dwarf_stmm4,
-    gcc_dwarf_stmm5,
-    gcc_dwarf_stmm6,
-    gcc_dwarf_stmm7,
-    gcc_dwarf_ymm0,
-    gcc_dwarf_ymm1,
-    gcc_dwarf_ymm2,
-    gcc_dwarf_ymm3,
-    gcc_dwarf_ymm4,
-    gcc_dwarf_ymm5,
-    gcc_dwarf_ymm6,
-    gcc_dwarf_ymm7,
-    gcc_dwarf_ymm8,
-    gcc_dwarf_ymm9,
-    gcc_dwarf_ymm10,
-    gcc_dwarf_ymm11,
-    gcc_dwarf_ymm12,
-    gcc_dwarf_ymm13,
-    gcc_dwarf_ymm14,
-    gcc_dwarf_ymm15
+    dwarf_rax = 0,
+    dwarf_rdx,
+    dwarf_rcx,
+    dwarf_rbx,
+    dwarf_rsi,
+    dwarf_rdi,
+    dwarf_rbp,
+    dwarf_rsp,
+    dwarf_r8,
+    dwarf_r9,
+    dwarf_r10,
+    dwarf_r11,
+    dwarf_r12,
+    dwarf_r13,
+    dwarf_r14,
+    dwarf_r15,
+    dwarf_rip,
+    dwarf_xmm0,
+    dwarf_xmm1,
+    dwarf_xmm2,
+    dwarf_xmm3,
+    dwarf_xmm4,
+    dwarf_xmm5,
+    dwarf_xmm6,
+    dwarf_xmm7,
+    dwarf_xmm8,
+    dwarf_xmm9,
+    dwarf_xmm10,
+    dwarf_xmm11,
+    dwarf_xmm12,
+    dwarf_xmm13,
+    dwarf_xmm14,
+    dwarf_xmm15,
+    dwarf_stmm0,
+    dwarf_stmm1,
+    dwarf_stmm2,
+    dwarf_stmm3,
+    dwarf_stmm4,
+    dwarf_stmm5,
+    dwarf_stmm6,
+    dwarf_stmm7,
+    dwarf_ymm0,
+    dwarf_ymm1,
+    dwarf_ymm2,
+    dwarf_ymm3,
+    dwarf_ymm4,
+    dwarf_ymm5,
+    dwarf_ymm6,
+    dwarf_ymm7,
+    dwarf_ymm8,
+    dwarf_ymm9,
+    dwarf_ymm10,
+    dwarf_ymm11,
+    dwarf_ymm12,
+    dwarf_ymm13,
+    dwarf_ymm14,
+    dwarf_ymm15
 };
 
-enum gdb_regnums
-{
-    gdb_rax     =   0,
-    gdb_rbx     =   1,
-    gdb_rcx     =   2,
-    gdb_rdx     =   3,
-    gdb_rsi     =   4,
-    gdb_rdi     =   5,
-    gdb_rbp     =   6,
-    gdb_rsp     =   7,
-    gdb_r8      =   8,
-    gdb_r9      =   9,
-    gdb_r10     =  10,
-    gdb_r11     =  11,
-    gdb_r12     =  12,
-    gdb_r13     =  13,
-    gdb_r14     =  14,
-    gdb_r15     =  15,
-    gdb_rip     =  16,
-    gdb_rflags  =  17,
-    gdb_cs      =  18,
-    gdb_ss      =  19,
-    gdb_ds      =  20,
-    gdb_es      =  21,
-    gdb_fs      =  22,
-    gdb_gs      =  23,
-    gdb_stmm0   =  24,
-    gdb_stmm1   =  25,
-    gdb_stmm2   =  26,
-    gdb_stmm3   =  27,
-    gdb_stmm4   =  28,
-    gdb_stmm5   =  29,
-    gdb_stmm6   =  30,
-    gdb_stmm7   =  31,
-    gdb_fctrl   =  32,  gdb_fcw = gdb_fctrl,
-    gdb_fstat   =  33,  gdb_fsw = gdb_fstat,
-    gdb_ftag    =  34,  gdb_ftw = gdb_ftag,
-    gdb_fiseg   =  35,  gdb_fpu_cs  = gdb_fiseg,
-    gdb_fioff   =  36,  gdb_ip  = gdb_fioff,
-    gdb_foseg   =  37,  gdb_fpu_ds  = gdb_foseg,
-    gdb_fooff   =  38,  gdb_dp  = gdb_fooff,
-    gdb_fop     =  39,
-    gdb_xmm0    =  40,
-    gdb_xmm1    =  41,
-    gdb_xmm2    =  42,
-    gdb_xmm3    =  43,
-    gdb_xmm4    =  44,
-    gdb_xmm5    =  45,
-    gdb_xmm6    =  46,
-    gdb_xmm7    =  47,
-    gdb_xmm8    =  48,
-    gdb_xmm9    =  49,
-    gdb_xmm10   =  50,
-    gdb_xmm11   =  51,
-    gdb_xmm12   =  52,
-    gdb_xmm13   =  53,
-    gdb_xmm14   =  54,
-    gdb_xmm15   =  55,
-    gdb_mxcsr   =  56,
-    gdb_ymm0    =  57,
-    gdb_ymm1    =  58,
-    gdb_ymm2    =  59,
-    gdb_ymm3    =  60,
-    gdb_ymm4    =  61,
-    gdb_ymm5    =  62,
-    gdb_ymm6    =  63,
-    gdb_ymm7    =  64,
-    gdb_ymm8    =  65,
-    gdb_ymm9    =  66,
-    gdb_ymm10   =  67,
-    gdb_ymm11   =  68,
-    gdb_ymm12   =  69,
-    gdb_ymm13   =  70,
-    gdb_ymm14   =  71,
-    gdb_ymm15   =  72
-};
-
-
 static RegisterInfo g_register_infos[] = 
 {
-  //  NAME      ALT      SZ OFF ENCODING         FORMAT              COMPILER                DWARF                 GENERIC                     GDB                   LLDB NATIVE            VALUE REGS    INVALIDATE REGS
+  //  NAME      ALT      SZ OFF ENCODING         FORMAT              EH_FRAME                DWARF                 GENERIC                     PROCESS PLUGIN        LLDB NATIVE            VALUE REGS    INVALIDATE REGS
   //  ========  =======  == === =============    =================== ======================= ===================== =========================== ===================== ====================== ==========    ===============
-    { "rax"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_rax       , gcc_dwarf_rax       , LLDB_INVALID_REGNUM       , gdb_rax            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "rbx"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_rbx       , gcc_dwarf_rbx       , LLDB_INVALID_REGNUM       , gdb_rbx            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "rcx"   , "arg4",  8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_rcx       , gcc_dwarf_rcx       , LLDB_REGNUM_GENERIC_ARG4  , gdb_rcx            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "rdx"   , "arg3",  8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_rdx       , gcc_dwarf_rdx       , LLDB_REGNUM_GENERIC_ARG3  , gdb_rdx            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "rsi"   , "arg2",  8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_rsi       , gcc_dwarf_rsi       , LLDB_REGNUM_GENERIC_ARG2  , gdb_rsi            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "rdi"   , "arg1",  8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_rdi       , gcc_dwarf_rdi       , LLDB_REGNUM_GENERIC_ARG1  , gdb_rdi            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "rbp"   , "fp",    8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_rbp       , gcc_dwarf_rbp       , LLDB_REGNUM_GENERIC_FP    , gdb_rbp            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "rsp"   , "sp",    8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_rsp       , gcc_dwarf_rsp       , LLDB_REGNUM_GENERIC_SP    , gdb_rsp            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "r8"    , "arg5",  8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_r8        , gcc_dwarf_r8        , LLDB_REGNUM_GENERIC_ARG5  , gdb_r8             , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "r9"    , "arg6",  8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_r9        , gcc_dwarf_r9        , LLDB_REGNUM_GENERIC_ARG6  , gdb_r9             , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "r10"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_r10       , gcc_dwarf_r10       , LLDB_INVALID_REGNUM       , gdb_r10            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "r11"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_r11       , gcc_dwarf_r11       , LLDB_INVALID_REGNUM       , gdb_r11            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "r12"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_r12       , gcc_dwarf_r12       , LLDB_INVALID_REGNUM       , gdb_r12            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "r13"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_r13       , gcc_dwarf_r13       , LLDB_INVALID_REGNUM       , gdb_r13            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "r14"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_r14       , gcc_dwarf_r14       , LLDB_INVALID_REGNUM       , gdb_r14            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "r15"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_r15       , gcc_dwarf_r15       , LLDB_INVALID_REGNUM       , gdb_r15            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "rip"   , "pc",    8,  0, eEncodingUint  , eFormatHex          , { gcc_dwarf_rip       , gcc_dwarf_rip       , LLDB_REGNUM_GENERIC_PC    , gdb_rip            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "rflags", NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_REGNUM_GENERIC_FLAGS , gdb_rflags         , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "cs"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_cs             , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ss"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_ss             , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ds"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_ds             , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "es"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_es             , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "fs"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_fs             , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "gs"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_gs             , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm0" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm0     , gcc_dwarf_stmm0     , LLDB_INVALID_REGNUM       , gdb_stmm0          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm1" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm1     , gcc_dwarf_stmm1     , LLDB_INVALID_REGNUM       , gdb_stmm1          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm2" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm2     , gcc_dwarf_stmm2     , LLDB_INVALID_REGNUM       , gdb_stmm2          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm3" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm3     , gcc_dwarf_stmm3     , LLDB_INVALID_REGNUM       , gdb_stmm3          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm4" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm4     , gcc_dwarf_stmm4     , LLDB_INVALID_REGNUM       , gdb_stmm4          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm5" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm5     , gcc_dwarf_stmm5     , LLDB_INVALID_REGNUM       , gdb_stmm5          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm6" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm6     , gcc_dwarf_stmm6     , LLDB_INVALID_REGNUM       , gdb_stmm6          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "stmm7" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_stmm7     , gcc_dwarf_stmm7     , LLDB_INVALID_REGNUM       , gdb_stmm7          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "fctrl" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_fctrl          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "fstat" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_fstat          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ftag"  , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_ftag           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "fiseg" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_fiseg          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "fioff" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_fioff          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "foseg" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_foseg          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "fooff" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_fooff          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "fop"   , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_fop            , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm0"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm0      , gcc_dwarf_xmm0      , LLDB_INVALID_REGNUM       , gdb_xmm0           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm1"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm1      , gcc_dwarf_xmm1      , LLDB_INVALID_REGNUM       , gdb_xmm1           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm2"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm2      , gcc_dwarf_xmm2      , LLDB_INVALID_REGNUM       , gdb_xmm2           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm3"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm3      , gcc_dwarf_xmm3      , LLDB_INVALID_REGNUM       , gdb_xmm3           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm4"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm4      , gcc_dwarf_xmm4      , LLDB_INVALID_REGNUM       , gdb_xmm4           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm5"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm5      , gcc_dwarf_xmm5      , LLDB_INVALID_REGNUM       , gdb_xmm5           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm6"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm6      , gcc_dwarf_xmm6      , LLDB_INVALID_REGNUM       , gdb_xmm6           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm7"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm7      , gcc_dwarf_xmm7      , LLDB_INVALID_REGNUM       , gdb_xmm7           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm8"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm8      , gcc_dwarf_xmm8      , LLDB_INVALID_REGNUM       , gdb_xmm8           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm9"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm9      , gcc_dwarf_xmm9      , LLDB_INVALID_REGNUM       , gdb_xmm9           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm10" , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm10     , gcc_dwarf_xmm10     , LLDB_INVALID_REGNUM       , gdb_xmm10          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm11" , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm11     , gcc_dwarf_xmm11     , LLDB_INVALID_REGNUM       , gdb_xmm11          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm12" , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm12     , gcc_dwarf_xmm12     , LLDB_INVALID_REGNUM       , gdb_xmm12          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm13" , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm13     , gcc_dwarf_xmm13     , LLDB_INVALID_REGNUM       , gdb_xmm13          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm14" , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm14     , gcc_dwarf_xmm14     , LLDB_INVALID_REGNUM       , gdb_xmm14          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "xmm15" , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_xmm15     , gcc_dwarf_xmm15     , LLDB_INVALID_REGNUM       , gdb_xmm15          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "mxcsr" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , gdb_mxcsr          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm0"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm0      , gcc_dwarf_ymm0      , LLDB_INVALID_REGNUM       , gdb_ymm0           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm1"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm1      , gcc_dwarf_ymm1      , LLDB_INVALID_REGNUM       , gdb_ymm1           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm2"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm2      , gcc_dwarf_ymm2      , LLDB_INVALID_REGNUM       , gdb_ymm2           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm3"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm3      , gcc_dwarf_ymm3      , LLDB_INVALID_REGNUM       , gdb_ymm3           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm4"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm4      , gcc_dwarf_ymm4      , LLDB_INVALID_REGNUM       , gdb_ymm4           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm5"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm5      , gcc_dwarf_ymm5      , LLDB_INVALID_REGNUM       , gdb_ymm5           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm6"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm6      , gcc_dwarf_ymm6      , LLDB_INVALID_REGNUM       , gdb_ymm6           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm7"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm7      , gcc_dwarf_ymm7      , LLDB_INVALID_REGNUM       , gdb_ymm7           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm8"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm8      , gcc_dwarf_ymm8      , LLDB_INVALID_REGNUM       , gdb_ymm8           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm9"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm9      , gcc_dwarf_ymm9      , LLDB_INVALID_REGNUM       , gdb_ymm9           , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm10" , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm10     , gcc_dwarf_ymm10     , LLDB_INVALID_REGNUM       , gdb_ymm10          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm11" , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm11     , gcc_dwarf_ymm11     , LLDB_INVALID_REGNUM       , gdb_ymm11          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm12" , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm12     , gcc_dwarf_ymm12     , LLDB_INVALID_REGNUM       , gdb_ymm12          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm13" , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm13     , gcc_dwarf_ymm13     , LLDB_INVALID_REGNUM       , gdb_ymm13          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm14" , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm14     , gcc_dwarf_ymm14     , LLDB_INVALID_REGNUM       , gdb_ymm14          , LLDB_INVALID_REGNUM },      NULL,              NULL},
-    { "ymm15" , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_ymm15     , gcc_dwarf_ymm15     , LLDB_INVALID_REGNUM       , gdb_ymm15          , LLDB_INVALID_REGNUM },      NULL,              NULL}
+    { "rax"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , {     dwarf_rax       ,     dwarf_rax       , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "rbx"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , {     dwarf_rbx       ,     dwarf_rbx       , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "rcx"   , "arg4",  8,  0, eEncodingUint  , eFormatHex          , {     dwarf_rcx       ,     dwarf_rcx       , LLDB_REGNUM_GENERIC_ARG4  , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "rdx"   , "arg3",  8,  0, eEncodingUint  , eFormatHex          , {     dwarf_rdx       ,     dwarf_rdx       , LLDB_REGNUM_GENERIC_ARG3  , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "rsi"   , "arg2",  8,  0, eEncodingUint  , eFormatHex          , {     dwarf_rsi       ,     dwarf_rsi       , LLDB_REGNUM_GENERIC_ARG2  , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "rdi"   , "arg1",  8,  0, eEncodingUint  , eFormatHex          , {     dwarf_rdi       ,     dwarf_rdi       , LLDB_REGNUM_GENERIC_ARG1  , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "rbp"   , "fp",    8,  0, eEncodingUint  , eFormatHex          , {     dwarf_rbp       ,     dwarf_rbp       , LLDB_REGNUM_GENERIC_FP    , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "rsp"   , "sp",    8,  0, eEncodingUint  , eFormatHex          , {     dwarf_rsp       ,     dwarf_rsp       , LLDB_REGNUM_GENERIC_SP    , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "r8"    , "arg5",  8,  0, eEncodingUint  , eFormatHex          , {     dwarf_r8        ,     dwarf_r8        , LLDB_REGNUM_GENERIC_ARG5  , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "r9"    , "arg6",  8,  0, eEncodingUint  , eFormatHex          , {     dwarf_r9        ,     dwarf_r9        , LLDB_REGNUM_GENERIC_ARG6  , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "r10"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , {     dwarf_r10       ,     dwarf_r10       , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "r11"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , {     dwarf_r11       ,     dwarf_r11       , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "r12"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , {     dwarf_r12       ,     dwarf_r12       , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "r13"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , {     dwarf_r13       ,     dwarf_r13       , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "r14"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , {     dwarf_r14       ,     dwarf_r14       , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "r15"   , NULL,    8,  0, eEncodingUint  , eFormatHex          , {     dwarf_r15       ,     dwarf_r15       , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "rip"   , "pc",    8,  0, eEncodingUint  , eFormatHex          , {     dwarf_rip       ,     dwarf_rip       , LLDB_REGNUM_GENERIC_PC    , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "rflags", NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_REGNUM_GENERIC_FLAGS , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "cs"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ss"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ds"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "es"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "fs"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "gs"    , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm0" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_stmm0     ,     dwarf_stmm0     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm1" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_stmm1     ,     dwarf_stmm1     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm2" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_stmm2     ,     dwarf_stmm2     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm3" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_stmm3     ,     dwarf_stmm3     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm4" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_stmm4     ,     dwarf_stmm4     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm5" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_stmm5     ,     dwarf_stmm5     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm6" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_stmm6     ,     dwarf_stmm6     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "stmm7" , NULL,   10,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_stmm7     ,     dwarf_stmm7     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "fctrl" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "fstat" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ftag"  , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "fiseg" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "fioff" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "foseg" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "fooff" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "fop"   , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm0"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm0      ,     dwarf_xmm0      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm1"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm1      ,     dwarf_xmm1      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm2"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm2      ,     dwarf_xmm2      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm3"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm3      ,     dwarf_xmm3      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm4"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm4      ,     dwarf_xmm4      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm5"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm5      ,     dwarf_xmm5      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm6"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm6      ,     dwarf_xmm6      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm7"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm7      ,     dwarf_xmm7      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm8"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm8      ,     dwarf_xmm8      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm9"  , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm9      ,     dwarf_xmm9      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm10" , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm10     ,     dwarf_xmm10     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm11" , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm11     ,     dwarf_xmm11     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm12" , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm12     ,     dwarf_xmm12     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm13" , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm13     ,     dwarf_xmm13     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm14" , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm14     ,     dwarf_xmm14     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "xmm15" , NULL,   16,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_xmm15     ,     dwarf_xmm15     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "mxcsr" , NULL,    4,  0, eEncodingUint  , eFormatHex          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm0"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm0      ,     dwarf_ymm0      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm1"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm1      ,     dwarf_ymm1      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm2"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm2      ,     dwarf_ymm2      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm3"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm3      ,     dwarf_ymm3      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm4"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm4      ,     dwarf_ymm4      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm5"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm5      ,     dwarf_ymm5      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm6"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm6      ,     dwarf_ymm6      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm7"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm7      ,     dwarf_ymm7      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm8"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm8      ,     dwarf_ymm8      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm9"  , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm9      ,     dwarf_ymm9      , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm10" , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm10     ,     dwarf_ymm10     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm11" , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm11     ,     dwarf_ymm11     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm12" , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm12     ,     dwarf_ymm12     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm13" , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm13     ,     dwarf_ymm13     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm14" , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm14     ,     dwarf_ymm14     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL},
+    { "ymm15" , NULL,   32,  0, eEncodingVector, eFormatVectorOfUInt8, {     dwarf_ymm15     ,     dwarf_ymm15     , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM },      NULL,              NULL}
 };
 
 static const uint32_t k_num_register_infos = llvm::array_lengthof(g_register_infos);
@@ -502,25 +423,25 @@ ABISysV_x86_64::GetArgumentValues (Thread &thread,
         
         // We currently only support extracting values with Clang QualTypes.
         // Do we care about others?
-        ClangASTType clang_type = value->GetClangType();
-        if (!clang_type)
+        CompilerType compiler_type = value->GetCompilerType();
+        if (!compiler_type)
             return false;
         bool is_signed;
         
-        if (clang_type.IsIntegerType (is_signed))
+        if (compiler_type.IsIntegerType (is_signed))
         {
             ReadIntegerArgument(value->GetScalar(),
-                                clang_type.GetBitSize(&thread),
+                                compiler_type.GetBitSize(&thread),
                                 is_signed,
                                 thread, 
                                 argument_register_ids, 
                                 current_argument_register,
                                 current_stack_argument);
         }
-        else if (clang_type.IsPointerType ())
+        else if (compiler_type.IsPointerType ())
         {
             ReadIntegerArgument(value->GetScalar(),
-                                clang_type.GetBitSize(&thread),
+                                compiler_type.GetBitSize(&thread),
                                 false,
                                 thread,
                                 argument_register_ids, 
@@ -542,8 +463,8 @@ ABISysV_x86_64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueOb
         return error;
     }
     
-    ClangASTType clang_type = new_value_sp->GetClangType();
-    if (!clang_type)
+    CompilerType compiler_type = new_value_sp->GetCompilerType();
+    if (!compiler_type)
     {
         error.SetErrorString ("Null clang type for return value.");
         return error;
@@ -558,7 +479,7 @@ ABISysV_x86_64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueOb
     RegisterContext *reg_ctx = thread->GetRegisterContext().get();
 
     bool set_it_simple = false;
-    if (clang_type.IsIntegerType (is_signed) || clang_type.IsPointerType())
+    if (compiler_type.IsIntegerType (is_signed) || compiler_type.IsPointerType())
     {
         const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoByName("rax", 0);
 
@@ -584,13 +505,13 @@ ABISysV_x86_64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueOb
         }
 
     }
-    else if (clang_type.IsFloatingPointType (count, is_complex))
+    else if (compiler_type.IsFloatingPointType (count, is_complex))
     {
         if (is_complex)
             error.SetErrorString ("We don't support returning complex values at present");
         else
         {
-            size_t bit_width = clang_type.GetBitSize(frame_sp.get());
+            size_t bit_width = compiler_type.GetBitSize(frame_sp.get());
             if (bit_width <= 64)
             {
                 const RegisterInfo *xmm0_info = reg_ctx->GetRegisterInfoByName("xmm0", 0);
@@ -633,22 +554,22 @@ ABISysV_x86_64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueOb
 
 ValueObjectSP
 ABISysV_x86_64::GetReturnValueObjectSimple (Thread &thread,
-                                            ClangASTType &return_clang_type) const
+                                            CompilerType &return_compiler_type) const
 {
     ValueObjectSP return_valobj_sp;
     Value value;
     
-    if (!return_clang_type)
+    if (!return_compiler_type)
         return return_valobj_sp;
 
     //value.SetContext (Value::eContextTypeClangType, return_value_type);
-    value.SetClangType (return_clang_type);
+    value.SetCompilerType (return_compiler_type);
     
     RegisterContext *reg_ctx = thread.GetRegisterContext().get();
     if (!reg_ctx)
         return return_valobj_sp;
     
-    const uint32_t type_flags = return_clang_type.GetTypeInfo ();
+    const uint32_t type_flags = return_compiler_type.GetTypeInfo ();
     if (type_flags & eTypeIsScalar)
     {
         value.SetValueType(Value::eValueTypeScalar);
@@ -658,7 +579,7 @@ ABISysV_x86_64::GetReturnValueObjectSimple (Thread &thread,
         {
             // Extract the register context so we can read arguments from registers
             
-            const size_t byte_size = return_clang_type.GetByteSize(nullptr);
+            const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
             uint64_t raw_value = thread.GetRegisterContext()->ReadRegisterAsUnsigned(reg_ctx->GetRegisterInfoByName("rax", 0), 0);
             const bool is_signed = (type_flags & eTypeIsSigned) != 0;
             switch (byte_size)
@@ -707,7 +628,7 @@ ABISysV_x86_64::GetReturnValueObjectSimple (Thread &thread,
             }
             else
             {
-                const size_t byte_size = return_clang_type.GetByteSize(nullptr);
+                const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
                 if (byte_size <= sizeof(long double))
                 {
                     const RegisterInfo *xmm0_info = reg_ctx->GetRegisterInfoByName("xmm0", 0);
@@ -755,18 +676,13 @@ ABISysV_x86_64::GetReturnValueObjectSimple (Thread &thread,
     }
     else if (type_flags & eTypeIsVector)
     {
-        const size_t byte_size = return_clang_type.GetByteSize(nullptr);
+        const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
         if (byte_size > 0)
         {
+            const RegisterInfo *altivec_reg = reg_ctx->GetRegisterInfoByName("xmm0", 0);
+            if (altivec_reg == nullptr)
+                altivec_reg = reg_ctx->GetRegisterInfoByName("mm0", 0);
 
-            const RegisterInfo *altivec_reg = reg_ctx->GetRegisterInfoByName("ymm0", 0);
-            if (altivec_reg == NULL)
-            {
-                altivec_reg = reg_ctx->GetRegisterInfoByName("xmm0", 0);
-                if (altivec_reg == NULL)
-                    altivec_reg = reg_ctx->GetRegisterInfoByName("mm0", 0);
-            }
-            
             if (altivec_reg)
             {
                 if (byte_size <= altivec_reg->byte_size)
@@ -790,13 +706,52 @@ ABISysV_x86_64::GetReturnValueObjectSimple (Thread &thread,
                                                     byte_order,
                                                     process_sp->GetTarget().GetArchitecture().GetAddressByteSize());
                                 return_valobj_sp = ValueObjectConstResult::Create (&thread,
-                                                                                   return_clang_type,
+                                                                                   return_compiler_type,
                                                                                    ConstString(""),
                                                                                    data);
                             }
                         }
                     }
                 }
+                else if (byte_size <= altivec_reg->byte_size*2)
+                {
+                    const RegisterInfo *altivec_reg2 = reg_ctx->GetRegisterInfoByName("xmm1", 0);
+                    if (altivec_reg2)
+                    {
+                        ProcessSP process_sp (thread.GetProcess());
+                        if (process_sp)
+                        {
+                            std::unique_ptr<DataBufferHeap> heap_data_ap (new DataBufferHeap(byte_size, 0));
+                            const ByteOrder byte_order = process_sp->GetByteOrder();
+                            RegisterValue reg_value;
+                            RegisterValue reg_value2;
+                            if (reg_ctx->ReadRegister(altivec_reg, reg_value) && reg_ctx->ReadRegister(altivec_reg2, reg_value2))
+                            {
+
+                                Error error;
+                                if (reg_value.GetAsMemoryData (altivec_reg,
+                                                               heap_data_ap->GetBytes(),
+                                                               altivec_reg->byte_size,
+                                                               byte_order,
+                                                               error) &&
+                                    reg_value2.GetAsMemoryData (altivec_reg2,
+                                                               heap_data_ap->GetBytes() + altivec_reg->byte_size,
+                                                               heap_data_ap->GetByteSize() - altivec_reg->byte_size,
+                                                               byte_order,
+                                                               error))
+                                {
+                                    DataExtractor data (DataBufferSP (heap_data_ap.release()),
+                                                        byte_order,
+                                                        process_sp->GetTarget().GetArchitecture().GetAddressByteSize());
+                                    return_valobj_sp = ValueObjectConstResult::Create (&thread,
+                                                                                       return_compiler_type,
+                                                                                       ConstString(""),
+                                                                                       data);
+                                }
+                            }
+                        }
+                    }
+                }
             }
         }
     }
@@ -805,15 +760,15 @@ ABISysV_x86_64::GetReturnValueObjectSimple (Thread &thread,
 }
 
 ValueObjectSP
-ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_clang_type) const
+ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, CompilerType &return_compiler_type) const
 {
     ValueObjectSP return_valobj_sp;
 
-    if (!return_clang_type)
+    if (!return_compiler_type)
         return return_valobj_sp;
     
     ExecutionContext exe_ctx (thread.shared_from_this());
-    return_valobj_sp = GetReturnValueObjectSimple(thread, return_clang_type);
+    return_valobj_sp = GetReturnValueObjectSimple(thread, return_compiler_type);
     if (return_valobj_sp)
         return return_valobj_sp;
     
@@ -821,8 +776,8 @@ ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_c
     if (!reg_ctx_sp)
         return return_valobj_sp;
         
-    const size_t bit_width = return_clang_type.GetBitSize(&thread);
-    if (return_clang_type.IsAggregateType())
+    const size_t bit_width = return_compiler_type.GetBitSize(&thread);
+    if (return_compiler_type.IsAggregateType())
     {
         Target *target = exe_ctx.GetTargetPtr();
         bool is_memory = true;
@@ -855,7 +810,7 @@ ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_c
             uint32_t fp_bytes = 0;       // Tracks how much of the xmm registers we've consumed so far
             uint32_t integer_bytes = 0;  // Tracks how much of the rax/rds registers we've consumed so far
             
-            const uint32_t num_children = return_clang_type.GetNumFields ();
+            const uint32_t num_children = return_compiler_type.GetNumFields ();
             
             // Since we are in the small struct regime, assume we are not in memory.
             is_memory = false;
@@ -868,8 +823,8 @@ ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_c
                 bool is_complex;
                 uint32_t count;
                 
-                ClangASTType field_clang_type = return_clang_type.GetFieldAtIndex (idx, name, &field_bit_offset, NULL, NULL);
-                const size_t field_bit_width = field_clang_type.GetBitSize(&thread);
+                CompilerType field_compiler_type = return_compiler_type.GetFieldAtIndex (idx, name, &field_bit_offset, NULL, NULL);
+                const size_t field_bit_width = field_compiler_type.GetBitSize(&thread);
 
                 // if we don't know the size of the field (e.g. invalid type), just bail out
                 if (field_bit_width == 0)
@@ -889,7 +844,7 @@ ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_c
                 DataExtractor *copy_from_extractor = NULL;
                 uint32_t       copy_from_offset    = 0;
                 
-                if (field_clang_type.IsIntegerType (is_signed) || field_clang_type.IsPointerType ())
+                if (field_compiler_type.IsIntegerType (is_signed) || field_compiler_type.IsPointerType ())
                 {
                     if (integer_bytes < 8)
                     {
@@ -922,7 +877,7 @@ ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_c
                         return return_valobj_sp;
                     }
                 }
-                else if (field_clang_type.IsFloatingPointType (count, is_complex))
+                else if (field_compiler_type.IsFloatingPointType (count, is_complex))
                 {
                     // Structs with long doubles are always passed in memory.
                     if (field_bit_width == 128)
@@ -955,12 +910,12 @@ ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_c
                             else
                             {
                                 uint64_t next_field_bit_offset = 0;
-                                ClangASTType next_field_clang_type = return_clang_type.GetFieldAtIndex (idx + 1,
+                                CompilerType next_field_compiler_type = return_compiler_type.GetFieldAtIndex (idx + 1,
                                                                                                         name,
                                                                                                         &next_field_bit_offset,
                                                                                                         NULL,
                                                                                                         NULL);
-                                if (next_field_clang_type.IsIntegerType (is_signed))
+                                if (next_field_compiler_type.IsIntegerType (is_signed))
                                     in_gpr = true;
                                 else
                                 {
@@ -979,12 +934,12 @@ ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_c
                             else
                             {
                                 uint64_t prev_field_bit_offset = 0;
-                                ClangASTType prev_field_clang_type = return_clang_type.GetFieldAtIndex (idx - 1,
+                                CompilerType prev_field_compiler_type = return_compiler_type.GetFieldAtIndex (idx - 1,
                                                                                                         name,
                                                                                                         &prev_field_bit_offset,
                                                                                                         NULL,
                                                                                                         NULL);
-                                if (prev_field_clang_type.IsIntegerType (is_signed))
+                                if (prev_field_compiler_type.IsIntegerType (is_signed))
                                     in_gpr = true;
                                 else
                                 {
@@ -1048,7 +1003,7 @@ ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_c
             {
                 // The result is in our data buffer.  Let's make a variable object out of it:
                 return_valobj_sp = ValueObjectConstResult::Create (&thread, 
-                                                                   return_clang_type,
+                                                                   return_compiler_type,
                                                                    ConstString(""),
                                                                    return_ext);
             }
@@ -1067,7 +1022,7 @@ ABISysV_x86_64::GetReturnValueObjectImpl (Thread &thread, ClangASTType &return_c
             return_valobj_sp = ValueObjectMemory::Create (&thread,
                                                           "",
                                                           Address (storage_addr, NULL),
-                                                          return_clang_type); 
+                                                          return_compiler_type);
         }
     }
         
@@ -1084,8 +1039,8 @@ ABISysV_x86_64::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan)
     unwind_plan.Clear();
     unwind_plan.SetRegisterKind (eRegisterKindDWARF);
     
-    uint32_t sp_reg_num = gcc_dwarf_rsp;
-    uint32_t pc_reg_num = gcc_dwarf_rip;
+    uint32_t sp_reg_num = dwarf_rsp;
+    uint32_t pc_reg_num = dwarf_rip;
     
     UnwindPlan::RowSP row(new UnwindPlan::Row);
     row->GetCFAValue().SetIsRegisterPlusOffset(sp_reg_num, 8);
@@ -1108,14 +1063,14 @@ ABISysV_x86_64::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
     unwind_plan.Clear();
     unwind_plan.SetRegisterKind (eRegisterKindDWARF);
 
-    uint32_t fp_reg_num = gcc_dwarf_rbp;
-    uint32_t sp_reg_num = gcc_dwarf_rsp;
-    uint32_t pc_reg_num = gcc_dwarf_rip;
+    uint32_t fp_reg_num = dwarf_rbp;
+    uint32_t sp_reg_num = dwarf_rsp;
+    uint32_t pc_reg_num = dwarf_rip;
     
     UnwindPlan::RowSP row(new UnwindPlan::Row);
 
     const int32_t ptr_size = 8;
-    row->GetCFAValue().SetIsRegisterPlusOffset(gcc_dwarf_rbp, 2 * ptr_size);
+    row->GetCFAValue().SetIsRegisterPlusOffset(dwarf_rbp, 2 * ptr_size);
     row->SetOffset (0);
     
     row->SetRegisterLocationToAtCFAPlusOffset(fp_reg_num, ptr_size * -2, true);
diff --git a/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.h b/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.h
index 6fefcc2a9c747..07b57abaf57cd 100644
--- a/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.h
+++ b/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.h
@@ -21,46 +21,37 @@ class ABISysV_x86_64 :
     public lldb_private::ABI
 {
 public:
+    ~ABISysV_x86_64() override = default;
 
-    ~ABISysV_x86_64()
-    {
-    }
-
-    virtual size_t
-    GetRedZoneSize () const;
+    size_t
+    GetRedZoneSize() const override;
 
-    virtual bool
-    PrepareTrivialCall (lldb_private::Thread &thread, 
-                        lldb::addr_t sp,
-                        lldb::addr_t functionAddress,
-                        lldb::addr_t returnAddress, 
-                        llvm::ArrayRef<lldb::addr_t> args) const;
+    bool
+    PrepareTrivialCall(lldb_private::Thread &thread,
+                       lldb::addr_t sp,
+                       lldb::addr_t functionAddress,
+                       lldb::addr_t returnAddress,
+                       llvm::ArrayRef<lldb::addr_t> args) const override;
     
-    virtual bool
-    GetArgumentValues (lldb_private::Thread &thread,
-                       lldb_private::ValueList &values) const;
+    bool
+    GetArgumentValues(lldb_private::Thread &thread,
+                      lldb_private::ValueList &values) const override;
     
-    virtual lldb_private::Error
-    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value);
+    lldb_private::Error
+    SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value) override;
 
-protected:
     lldb::ValueObjectSP
-    GetReturnValueObjectSimple (lldb_private::Thread &thread,
-                                lldb_private::ClangASTType &ast_type) const;
-    
-public:    
-    virtual lldb::ValueObjectSP
-    GetReturnValueObjectImpl (lldb_private::Thread &thread,
-                          lldb_private::ClangASTType &type) const;
+    GetReturnValueObjectImpl(lldb_private::Thread &thread,
+                             lldb_private::CompilerType &type) const override;
 
-    virtual bool
-    CreateFunctionEntryUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
     
-    virtual bool
-    CreateDefaultUnwindPlan (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
         
-    virtual bool
-    RegisterIsVolatile (const lldb_private::RegisterInfo *reg_info);
+    bool
+    RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
 
     // The SysV x86_64 ABI requires that stack frames be 16 byte aligned.
     // When there is a trap handler on the stack, e.g. _sigtramp in userland
@@ -72,8 +63,8 @@ public:
     // Whitelisting the trap handlers for user space would be easy (_sigtramp) but
     // in other environments there can be a large number of different functions
     // involved in async traps.
-    virtual bool
-    CallFrameAddressIsValid (lldb::addr_t cfa)
+    bool
+    CallFrameAddressIsValid(lldb::addr_t cfa) override
     {
         // Make sure the stack call frame addresses are 8 byte aligned
         if (cfa & (8ull - 1ull))
@@ -83,19 +74,21 @@ public:
         return true;
     }
     
-    virtual bool
-    CodeAddressIsValid (lldb::addr_t pc)
+    bool
+    CodeAddressIsValid(lldb::addr_t pc) override
     {
         // We have a 64 bit address space, so anything is valid as opcodes
         // aren't fixed width...
         return true;
     }
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoArray (uint32_t &count);
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoArray(uint32_t &count) override;
+
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
+
     static void
     Initialize();
 
@@ -111,21 +104,30 @@ public:
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
 
-    virtual uint32_t
-    GetPluginVersion();
+    lldb_private::ConstString
+    GetPluginName() override;
+
+    uint32_t
+    GetPluginVersion() override;
 
 protected:
     void
     CreateRegisterMapIfNeeded ();
 
+    lldb::ValueObjectSP
+    GetReturnValueObjectSimple(lldb_private::Thread &thread,
+                               lldb_private::CompilerType &ast_type) const;
+
     bool
     RegisterIsCalleeSaved (const lldb_private::RegisterInfo *reg_info);
 
 private:
-    ABISysV_x86_64() : lldb_private::ABI() { } // Call CreateInstance instead.
+    ABISysV_x86_64() : 
+        lldb_private::ABI() 
+    {
+         // Call CreateInstance instead.
+    }
 };
 
-#endif  // liblldb_ABI_h_
+#endif // liblldb_ABISysV_x86_64_h_
diff --git a/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp b/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp
index d20219f6d1eb6..6d124b689341f 100644
--- a/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp
+++ b/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp
@@ -7,8 +7,9 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "DisassemblerLLVMC.h"
-
+// C Includes
+// C++ Includes
+// Project includes
 #include "llvm-c/Disassembler.h"
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCContext.h"
@@ -25,6 +26,8 @@
 #include "llvm/Support/TargetSelect.h"
 #include "llvm/ADT/SmallString.h"
 
+// Other libraries and framework includes
+#include "DisassemblerLLVMC.h"
 
 #include "lldb/Core/Address.h"
 #include "lldb/Core/DataExtractor.h"
@@ -52,18 +55,16 @@ public:
         Instruction (address, addr_class),
         m_disasm_sp (disasm.shared_from_this()),
         m_does_branch (eLazyBoolCalculate),
+        m_has_delay_slot (eLazyBoolCalculate),
         m_is_valid (false),
         m_using_file_addr (false)
     {
     }
 
-    virtual
-    ~InstructionLLVMC ()
-    {
-    }
+    ~InstructionLLVMC() override = default;
 
-    virtual bool
-    DoesBranch ()
+    bool
+    DoesBranch() override
     {
         if (m_does_branch == eLazyBoolCalculate)
         {
@@ -99,6 +100,43 @@ public:
         return m_does_branch == eLazyBoolYes;
     }
 
+    bool
+    HasDelaySlot() override
+    {
+        if (m_has_delay_slot == eLazyBoolCalculate)
+        {
+            GetDisassemblerLLVMC().Lock(this, NULL);
+            DataExtractor data;
+            if (m_opcode.GetData(data))
+            {
+                bool is_alternate_isa;
+                lldb::addr_t pc = m_address.GetFileAddress();
+
+                DisassemblerLLVMC::LLVMCDisassembler *mc_disasm_ptr = GetDisasmToUse (is_alternate_isa);
+                const uint8_t *opcode_data = data.GetDataStart();
+                const size_t opcode_data_len = data.GetByteSize();
+                llvm::MCInst inst;
+                const size_t inst_size = mc_disasm_ptr->GetMCInst (opcode_data,
+                                                                   opcode_data_len,
+                                                                   pc,
+                                                                   inst);
+                // if we didn't understand the instruction, say it doesn't have a delay slot...
+                if (inst_size == 0)
+                    m_has_delay_slot = eLazyBoolNo;
+                else
+                {
+                    const bool has_delay_slot = mc_disasm_ptr->HasDelaySlot(inst);
+                    if (has_delay_slot)
+                        m_has_delay_slot = eLazyBoolYes;
+                    else
+                        m_has_delay_slot = eLazyBoolNo;
+                }
+            }
+            GetDisassemblerLLVMC().Unlock();
+        }
+        return m_has_delay_slot == eLazyBoolYes;
+    }
+
     DisassemblerLLVMC::LLVMCDisassembler *
     GetDisasmToUse (bool &is_alternate_isa)
     {
@@ -117,10 +155,10 @@ public:
         return llvm_disasm.m_disasm_ap.get();
     }
 
-    virtual size_t
-    Decode (const lldb_private::Disassembler &disassembler,
-            const lldb_private::DataExtractor &data,
-            lldb::offset_t data_offset)
+    size_t
+    Decode(const lldb_private::Disassembler &disassembler,
+           const lldb_private::DataExtractor &data,
+           lldb::offset_t data_offset) override
     {
         // All we have to do is read the opcode which can be easy for some
         // architectures
@@ -234,15 +272,16 @@ public:
         }
     }
 
-    virtual void
-    CalculateMnemonicOperandsAndComment (const lldb_private::ExecutionContext *exe_ctx)
+    void
+    CalculateMnemonicOperandsAndComment(const lldb_private::ExecutionContext *exe_ctx) override
     {
         DataExtractor data;
         const AddressClass address_class = GetAddressClass ();
 
         if (m_opcode.GetData(data))
         {
-            char out_string[512];
+            std::string out_string;
+            std::string comment_string;
 
             DisassemblerLLVMC &llvm_disasm = GetDisassemblerLLVMC();
 
@@ -293,7 +332,12 @@ public:
             if (inst_size > 0)
             {
                 mc_disasm_ptr->SetStyle(use_hex_immediates, hex_style);
-                mc_disasm_ptr->PrintMCInst(inst, out_string, sizeof(out_string));
+                mc_disasm_ptr->PrintMCInst(inst, out_string, comment_string);
+                
+                if (!comment_string.empty())
+                {
+                    AppendComment(comment_string);
+                }
             }
 
             llvm_disasm.Unlock();
@@ -375,10 +419,10 @@ public:
 
             RegularExpression::Match matches(3);
 
-            if (s_regex.Execute(out_string, &matches))
+            if (s_regex.Execute(out_string.c_str(), &matches))
             {
-                matches.GetMatchAtIndex(out_string, 1, m_opcode_name);
-                matches.GetMatchAtIndex(out_string, 2, m_mnemonics);
+                matches.GetMatchAtIndex(out_string.c_str(), 1, m_opcode_name);
+                matches.GetMatchAtIndex(out_string.c_str(), 2, m_mnemonics);
             }
         }
     }
@@ -409,12 +453,11 @@ protected:
 
     DisassemblerSP          m_disasm_sp; // for ownership
     LazyBool                m_does_branch;
+    LazyBool                m_has_delay_slot;
     bool                    m_is_valid;
     bool                    m_using_file_addr;
 };
 
-
-
 DisassemblerLLVMC::LLVMCDisassembler::LLVMCDisassembler (const char *triple, const char *cpu, const char *features_str, unsigned flavor, DisassemblerLLVMC &owner):
     m_is_valid(true)
 {
@@ -482,9 +525,7 @@ DisassemblerLLVMC::LLVMCDisassembler::LLVMCDisassembler (const char *triple, con
         m_is_valid = false;
 }
 
-DisassemblerLLVMC::LLVMCDisassembler::~LLVMCDisassembler()
-{
-}
+DisassemblerLLVMC::LLVMCDisassembler::~LLVMCDisassembler() = default;
 
 uint64_t
 DisassemblerLLVMC::LLVMCDisassembler::GetMCInst (const uint8_t *opcode_data,
@@ -508,22 +549,25 @@ DisassemblerLLVMC::LLVMCDisassembler::GetMCInst (const uint8_t *opcode_data,
         return 0;
 }
 
-uint64_t
+void
 DisassemblerLLVMC::LLVMCDisassembler::PrintMCInst (llvm::MCInst &mc_inst,
-                                                   char *dst,
-                                                   size_t dst_len)
+                                                   std::string &inst_string,
+                                                   std::string &comments_string)
 {
-    llvm::StringRef unused_annotations;
-    llvm::SmallString<64> inst_string;
-    llvm::raw_svector_ostream inst_stream(inst_string);
-    m_instr_printer_ap->printInst (&mc_inst, inst_stream, unused_annotations,
-                                   *m_subtarget_info_ap);
-    inst_stream.flush();
-    const size_t output_size = std::min(dst_len - 1, inst_string.size());
-    std::memcpy(dst, inst_string.data(), output_size);
-    dst[output_size] = '\0';
-
-    return output_size;
+    llvm::raw_string_ostream inst_stream(inst_string);
+    llvm::raw_string_ostream comments_stream(comments_string);
+
+    m_instr_printer_ap->setCommentStream(comments_stream);
+    m_instr_printer_ap->printInst (&mc_inst, inst_stream, llvm::StringRef(), *m_subtarget_info_ap);
+    m_instr_printer_ap->setCommentStream(llvm::nulls());
+    comments_stream.flush();
+    
+    static std::string g_newlines("\r\n");
+    
+    for (size_t newline_pos = 0; (newline_pos = comments_string.find_first_of(g_newlines, newline_pos)) != comments_string.npos; /**/)
+    {
+        comments_string.replace(comments_string.begin() + newline_pos, comments_string.begin() + newline_pos + 1, 1, ' ');
+    }
 }
 
 void
@@ -544,35 +588,9 @@ DisassemblerLLVMC::LLVMCDisassembler::CanBranch (llvm::MCInst &mc_inst)
 }
 
 bool
-DisassemblerLLVMC::FlavorValidForArchSpec (const lldb_private::ArchSpec &arch, const char *flavor)
+DisassemblerLLVMC::LLVMCDisassembler::HasDelaySlot (llvm::MCInst &mc_inst)
 {
-    llvm::Triple triple = arch.GetTriple();
-    if (flavor == NULL || strcmp (flavor, "default") == 0)
-        return true;
-
-    if (triple.getArch() == llvm::Triple::x86 || triple.getArch() == llvm::Triple::x86_64)
-    {
-        if (strcmp (flavor, "intel") == 0 || strcmp (flavor, "att") == 0)
-            return true;
-        else
-            return false;
-    }
-    else
-        return false;
-}
-
-
-Disassembler *
-DisassemblerLLVMC::CreateInstance (const ArchSpec &arch, const char *flavor)
-{
-    if (arch.GetTriple().getArch() != llvm::Triple::UnknownArch)
-    {
-        std::unique_ptr<DisassemblerLLVMC> disasm_ap (new DisassemblerLLVMC(arch, flavor));
-
-        if (disasm_ap.get() && disasm_ap->IsValid())
-            return disasm_ap.release();
-    }
-    return NULL;
+    return m_instr_info_ap->get(mc_inst.getOpcode()).hasDelaySlot();
 }
 
 DisassemblerLLVMC::DisassemblerLLVMC (const ArchSpec &arch, const char *flavor_string) :
@@ -586,13 +604,12 @@ DisassemblerLLVMC::DisassemblerLLVMC (const ArchSpec &arch, const char *flavor_s
         m_flavor.assign("default");
     }
 
-    const char *triple = arch.GetTriple().getTriple().c_str();
     unsigned flavor = ~0U;
+    llvm::Triple triple = arch.GetTriple();
 
     // So far the only supported flavor is "intel" on x86.  The base class will set this
     // correctly coming in.
-    if (arch.GetTriple().getArch() == llvm::Triple::x86
-        || arch.GetTriple().getArch() == llvm::Triple::x86_64)
+    if (triple.getArch() == llvm::Triple::x86 || triple.getArch() == llvm::Triple::x86_64)
     {
         if (m_flavor == "intel")
         {
@@ -605,7 +622,7 @@ DisassemblerLLVMC::DisassemblerLLVMC (const ArchSpec &arch, const char *flavor_s
     }
 
     ArchSpec thumb_arch(arch);
-    if (arch.GetTriple().getArch() == llvm::Triple::arm)
+    if (triple.getArch() == llvm::Triple::arm)
     {
         std::string thumb_arch_name (thumb_arch.GetTriple().getArchName().str());
         // Replace "arm" with "thumb" so we get all thumb variants correct
@@ -621,18 +638,29 @@ DisassemblerLLVMC::DisassemblerLLVMC (const ArchSpec &arch, const char *flavor_s
         thumb_arch.GetTriple().setArchName(llvm::StringRef(thumb_arch_name.c_str()));
     }
 
+    // If no sub architecture specified then use the most recent arm architecture so the
+    // disassembler will return all instruction. Without it we will see a lot of unknow opcode
+    // in case the code uses instructions which are not available in the oldest arm version
+    // (used when no sub architecture is specified)
+    if (triple.getArch() == llvm::Triple::arm && triple.getSubArch() == llvm::Triple::NoSubArch)
+        triple.setArchName("armv8.1a");
+
+    const char *triple_str = triple.getTriple().c_str();
+
+    // v. https://en.wikipedia.org/wiki/ARM_Cortex-M#Silicon_customization
+    // 
     // Cortex-M3 devices (e.g. armv7m) can only execute thumb (T2) instructions,
     // so hardcode the primary disassembler to thumb mode.  Same for Cortex-M4 (armv7em).
     //
     // Handle the Cortex-M0 (armv6m) the same; the ISA is a subset of the T and T32
     // instructions defined in ARMv7-A.
 
-    if (arch.GetTriple().getArch() == llvm::Triple::arm
+    if ((triple.getArch() == llvm::Triple::arm || triple.getArch() == llvm::Triple::thumb)
         && (arch.GetCore() == ArchSpec::Core::eCore_arm_armv7m
             || arch.GetCore() == ArchSpec::Core::eCore_arm_armv7em
             || arch.GetCore() == ArchSpec::Core::eCore_arm_armv6m))
     {
-        triple = thumb_arch.GetTriple().getTriple().c_str();
+        triple_str = thumb_arch.GetTriple().getTriple().c_str();
     }
 
     const char *cpu = "";
@@ -674,8 +702,8 @@ DisassemblerLLVMC::DisassemblerLLVMC (const ArchSpec &arch, const char *flavor_s
     }
 
     std::string features_str = "";
-    if (arch.GetTriple().getArch() == llvm::Triple::mips || arch.GetTriple().getArch() == llvm::Triple::mipsel
-        || arch.GetTriple().getArch() == llvm::Triple::mips64 || arch.GetTriple().getArch() == llvm::Triple::mips64el)
+    if (triple.getArch() == llvm::Triple::mips || triple.getArch() == llvm::Triple::mipsel
+        || triple.getArch() == llvm::Triple::mips64 || triple.getArch() == llvm::Triple::mips64el)
     {
         uint32_t arch_flags = arch.GetFlags ();
         if (arch_flags & ArchSpec::eMIPSAse_msa)
@@ -684,13 +712,9 @@ DisassemblerLLVMC::DisassemblerLLVMC (const ArchSpec &arch, const char *flavor_s
             features_str += "+dsp,";
         if (arch_flags & ArchSpec::eMIPSAse_dspr2)
             features_str += "+dspr2,";
-        if (arch_flags & ArchSpec::eMIPSAse_mips16)
-            features_str += "+mips16,";
-        if (arch_flags & ArchSpec::eMIPSAse_micromips)
-            features_str += "+micromips,";
     }
     
-    m_disasm_ap.reset (new LLVMCDisassembler(triple, cpu, features_str.c_str(), flavor, *this));
+    m_disasm_ap.reset (new LLVMCDisassembler(triple_str, cpu, features_str.c_str(), flavor, *this));
     if (!m_disasm_ap->IsValid())
     {
         // We use m_disasm_ap.get() to tell whether we are valid or not, so if this isn't good for some reason,
@@ -698,8 +722,10 @@ DisassemblerLLVMC::DisassemblerLLVMC (const ArchSpec &arch, const char *flavor_s
         m_disasm_ap.reset();
     }
 
+    llvm::Triple::ArchType llvm_arch = triple.getArch();
+
     // For arm CPUs that can execute arm or thumb instructions, also create a thumb instruction disassembler.
-    if (arch.GetTriple().getArch() == llvm::Triple::arm)
+    if (llvm_arch == llvm::Triple::arm)
     {
         std::string thumb_triple(thumb_arch.GetTriple().getTriple());
         m_alternate_disasm_ap.reset(new LLVMCDisassembler(thumb_triple.c_str(), "", "", flavor, *this));
@@ -709,10 +735,40 @@ DisassemblerLLVMC::DisassemblerLLVMC (const ArchSpec &arch, const char *flavor_s
             m_alternate_disasm_ap.reset();
         }
     }
+    else if (llvm_arch == llvm::Triple::mips
+            || llvm_arch == llvm::Triple::mipsel
+            || llvm_arch == llvm::Triple::mips64
+            || llvm_arch == llvm::Triple::mips64el)
+    {
+        /* Create alternate disassembler for MIPS16 and microMIPS */
+        uint32_t arch_flags = arch.GetFlags ();
+        if (arch_flags & ArchSpec::eMIPSAse_mips16)
+            features_str += "+mips16,";
+        else if (arch_flags & ArchSpec::eMIPSAse_micromips)
+            features_str += "+micromips,";
+
+        m_alternate_disasm_ap.reset(new LLVMCDisassembler (triple_str, cpu, features_str.c_str(), flavor, *this));
+        if (!m_alternate_disasm_ap->IsValid())
+        {
+            m_disasm_ap.reset();
+            m_alternate_disasm_ap.reset();
+        }
+    }
 }
 
-DisassemblerLLVMC::~DisassemblerLLVMC()
+DisassemblerLLVMC::~DisassemblerLLVMC() = default;
+
+Disassembler *
+DisassemblerLLVMC::CreateInstance (const ArchSpec &arch, const char *flavor)
 {
+    if (arch.GetTriple().getArch() != llvm::Triple::UnknownArch)
+    {
+        std::unique_ptr<DisassemblerLLVMC> disasm_ap (new DisassemblerLLVMC(arch, flavor));
+
+        if (disasm_ap.get() && disasm_ap->IsValid())
+            return disasm_ap.release();
+    }
+    return NULL;
 }
 
 size_t
@@ -817,6 +873,24 @@ const char *DisassemblerLLVMC::SymbolLookupCallback (void *disassembler,
                                                                        name);
 }
 
+bool
+DisassemblerLLVMC::FlavorValidForArchSpec (const lldb_private::ArchSpec &arch, const char *flavor)
+{
+    llvm::Triple triple = arch.GetTriple();
+    if (flavor == NULL || strcmp (flavor, "default") == 0)
+        return true;
+
+    if (triple.getArch() == llvm::Triple::x86 || triple.getArch() == llvm::Triple::x86_64)
+    {
+        if (strcmp (flavor, "intel") == 0 || strcmp (flavor, "att") == 0)
+            return true;
+        else
+            return false;
+    }
+    else
+        return false;
+}
+
 int DisassemblerLLVMC::OpInfo (uint64_t PC,
                                uint64_t Offset,
                                uint64_t Size,
diff --git a/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.h b/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.h
index 56cec03994ef9..6359146d81d85 100644
--- a/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.h
+++ b/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.h
@@ -10,10 +10,20 @@
 #ifndef liblldb_DisassemblerLLVMC_h_
 #define liblldb_DisassemblerLLVMC_h_
 
+// C Includes
+// C++ Includes
+#include <memory>
 #include <string>
 
+// Other libraries and framework includes
 #include "llvm-c/Disassembler.h"
 
+// Project includes
+#include "lldb/Core/Address.h"
+#include "lldb/Core/Disassembler.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Host/Mutex.h"
+
 // Opaque references to C++ Objects in LLVM's MC.
 namespace llvm
 {
@@ -25,12 +35,7 @@ namespace llvm
     class MCInstPrinter;
     class MCAsmInfo;
     class MCSubtargetInfo;
-}
-
-#include "lldb/Core/Address.h"
-#include "lldb/Core/Disassembler.h"
-#include "lldb/Core/PluginManager.h"
-#include "lldb/Host/Mutex.h"
+} // namespace llvm
 
 class InstructionLLVMC;
 
@@ -46,9 +51,10 @@ class DisassemblerLLVMC : public lldb_private::Disassembler
         ~LLVMCDisassembler();
 
         uint64_t GetMCInst (const uint8_t *opcode_data, size_t opcode_data_len, lldb::addr_t pc, llvm::MCInst &mc_inst);
-        uint64_t PrintMCInst (llvm::MCInst &mc_inst, char *output_buffer, size_t out_buffer_len);
+        void PrintMCInst (llvm::MCInst &mc_inst, std::string &inst_string, std::string &comments_string);
         void     SetStyle (bool use_hex_immed, HexImmediateStyle hex_style);
         bool     CanBranch (llvm::MCInst &mc_inst);
+        bool     HasDelaySlot (llvm::MCInst &mc_inst);
         bool     IsValid()
         {
             return m_is_valid;
@@ -66,6 +72,10 @@ class DisassemblerLLVMC : public lldb_private::Disassembler
     };
 
 public:
+    DisassemblerLLVMC(const lldb_private::ArchSpec &arch, const char *flavor /* = NULL */);
+
+    ~DisassemblerLLVMC() override;
+
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
@@ -81,33 +91,28 @@ public:
     static lldb_private::Disassembler *
     CreateInstance(const lldb_private::ArchSpec &arch, const char *flavor);
 
-    DisassemblerLLVMC(const lldb_private::ArchSpec &arch, const char *flavor /* = NULL */);
-
-    virtual
-    ~DisassemblerLLVMC();
-
-    virtual size_t
-    DecodeInstructions (const lldb_private::Address &base_addr,
-                        const lldb_private::DataExtractor& data,
-                        lldb::offset_t data_offset,
-                        size_t num_instructions,
-                        bool append,
-                        bool data_from_file);
+    size_t
+    DecodeInstructions(const lldb_private::Address &base_addr,
+                       const lldb_private::DataExtractor& data,
+                       lldb::offset_t data_offset,
+                       size_t num_instructions,
+                       bool append,
+                       bool data_from_file) override;
 
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
 
-    virtual uint32_t
-    GetPluginVersion();
+    uint32_t
+    GetPluginVersion() override;
 
 protected:
     friend class InstructionLLVMC;
 
-    virtual bool
-    FlavorValidForArchSpec (const lldb_private::ArchSpec &arch, const char *flavor);
+    bool
+    FlavorValidForArchSpec(const lldb_private::ArchSpec &arch, const char *flavor) override;
 
     bool
     IsValid()
@@ -163,4 +168,4 @@ protected:
     std::unique_ptr<LLVMCDisassembler> m_alternate_disasm_ap;
 };
 
-#endif  // liblldb_DisassemblerLLVM_h_
+#endif // liblldb_DisassemblerLLVM_h_
diff --git a/source/Plugins/DynamicLoader/Hexagon-DYLD/DynamicLoaderHexagonDYLD.cpp b/source/Plugins/DynamicLoader/Hexagon-DYLD/DynamicLoaderHexagonDYLD.cpp
index 2308129b8cab0..28493170ac367 100644
--- a/source/Plugins/DynamicLoader/Hexagon-DYLD/DynamicLoaderHexagonDYLD.cpp
+++ b/source/Plugins/DynamicLoader/Hexagon-DYLD/DynamicLoaderHexagonDYLD.cpp
@@ -104,11 +104,6 @@ DynamicLoaderHexagonDYLD::GetPluginDescriptionStatic()
            "loads/unloads in Hexagon processes.";
 }
 
-void
-DynamicLoaderHexagonDYLD::GetPluginCommandHelp(const char *command, Stream *strm)
-{
-}
-
 uint32_t
 DynamicLoaderHexagonDYLD::GetPluginVersion()
 {
@@ -177,7 +172,7 @@ DynamicLoaderHexagonDYLD::DidAttach()
 
     // Map the loaded sections of this executable
     if ( load_offset != LLDB_INVALID_ADDRESS )
-        UpdateLoadedSections(executable, LLDB_INVALID_ADDRESS, load_offset);
+        UpdateLoadedSections(executable, LLDB_INVALID_ADDRESS, load_offset, true);
 
     // AD: confirm this?
     // Load into LLDB all of the currently loaded executables in the stub
@@ -248,18 +243,6 @@ DynamicLoaderHexagonDYLD::GetTargetExecutable()
     return executable;
 }
 
-Error
-DynamicLoaderHexagonDYLD::ExecutePluginCommand(Args &command, Stream *strm)
-{
-    return Error();
-}
-
-Log *
-DynamicLoaderHexagonDYLD::EnablePluginLogging(Stream *strm, Args &command)
-{
-    return NULL;
-}
-
 //AD: Needs to be updated?
 Error
 DynamicLoaderHexagonDYLD::CanLoadImage()
@@ -268,7 +251,10 @@ DynamicLoaderHexagonDYLD::CanLoadImage()
 }
 
 void
-DynamicLoaderHexagonDYLD::UpdateLoadedSections(ModuleSP module, addr_t link_map_addr, addr_t base_addr)
+DynamicLoaderHexagonDYLD::UpdateLoadedSections(ModuleSP module,
+                                               addr_t link_map_addr,
+                                               addr_t base_addr,
+                                               bool base_addr_is_offset)
 {
     Target &target = m_process->GetTarget();
     const SectionList *sections = GetSectionListFromModule(module);
@@ -442,7 +428,7 @@ DynamicLoaderHexagonDYLD::RefreshModules()
         for (I = m_rendezvous.loaded_begin(); I != E; ++I)
         {
             FileSpec file(I->path.c_str(), true);
-            ModuleSP module_sp = LoadModuleAtAddress(file, I->link_addr, I->base_addr);
+            ModuleSP module_sp = LoadModuleAtAddress(file, I->link_addr, I->base_addr, true);
             if (module_sp.get())
             {
                 loaded_modules.AppendIfNeeded( module_sp );
@@ -571,7 +557,7 @@ DynamicLoaderHexagonDYLD::LoadAllCurrentModules()
     {
         const char *module_path = I->path.c_str();
         FileSpec file(module_path, false);
-        ModuleSP module_sp = LoadModuleAtAddress(file, I->link_addr, I->base_addr);
+        ModuleSP module_sp = LoadModuleAtAddress(file, I->link_addr, I->base_addr, true);
         if (module_sp.get())
         {
             module_list.Append(module_sp);
@@ -591,7 +577,10 @@ DynamicLoaderHexagonDYLD::LoadAllCurrentModules()
 /// Helper for the entry breakpoint callback.  Resolves the load addresses
 /// of all dependent modules.
 ModuleSP
-DynamicLoaderHexagonDYLD::LoadModuleAtAddress(const FileSpec &file, addr_t link_map_addr, addr_t base_addr)
+DynamicLoaderHexagonDYLD::LoadModuleAtAddress(const FileSpec &file,
+                                              addr_t link_map_addr,
+                                              addr_t base_addr,
+                                              bool base_addr_is_offset)
 {
     Target &target = m_process->GetTarget();
     ModuleList &modules = target.GetImages();
@@ -602,12 +591,12 @@ DynamicLoaderHexagonDYLD::LoadModuleAtAddress(const FileSpec &file, addr_t link_
     // check if module is currently loaded
     if ((module_sp = modules.FindFirstModule (module_spec))) 
     {
-        UpdateLoadedSections(module_sp, link_map_addr, base_addr);
+        UpdateLoadedSections(module_sp, link_map_addr, base_addr, true);
     }
     // try to load this module from disk
     else if ((module_sp = target.GetSharedModule(module_spec))) 
     {
-        UpdateLoadedSections(module_sp, link_map_addr, base_addr);
+        UpdateLoadedSections(module_sp, link_map_addr, base_addr, true);
     }
 
     return module_sp;
diff --git a/source/Plugins/DynamicLoader/Hexagon-DYLD/DynamicLoaderHexagonDYLD.h b/source/Plugins/DynamicLoader/Hexagon-DYLD/DynamicLoaderHexagonDYLD.h
index aafa385c0fca2..e10d4ee642091 100644
--- a/source/Plugins/DynamicLoader/Hexagon-DYLD/DynamicLoaderHexagonDYLD.h
+++ b/source/Plugins/DynamicLoader/Hexagon-DYLD/DynamicLoaderHexagonDYLD.h
@@ -7,12 +7,13 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef liblldb_DynamicLoaderHexagon_H_
-#define liblldb_DynamicLoaderHexagon_H_
+#ifndef liblldb_DynamicLoaderHexagonDYLD_h_
+#define liblldb_DynamicLoaderHexagonDYLD_h_
 
 // C Includes
 // C++ Includes
 // Other libraries and framework includes
+// Project includes
 #include "lldb/Breakpoint/StoppointCallbackContext.h"
 #include "lldb/Target/DynamicLoader.h"
 
@@ -21,6 +22,9 @@
 class DynamicLoaderHexagonDYLD : public lldb_private::DynamicLoader
 {
 public:
+    DynamicLoaderHexagonDYLD(lldb_private::Process *process);
+
+    ~DynamicLoaderHexagonDYLD() override;
 
     static void
     Initialize();
@@ -37,48 +41,34 @@ public:
     static lldb_private::DynamicLoader *
     CreateInstance(lldb_private::Process *process, bool force);
 
-    DynamicLoaderHexagonDYLD(lldb_private::Process *process);
-
-    virtual
-    ~DynamicLoaderHexagonDYLD();
-
     //------------------------------------------------------------------
     // DynamicLoader protocol
     //------------------------------------------------------------------
 
-    virtual void
-    DidAttach();
+    void
+    DidAttach() override;
 
-    virtual void
-    DidLaunch();
+    void
+    DidLaunch() override;
 
-    virtual lldb::ThreadPlanSP
+    lldb::ThreadPlanSP
     GetStepThroughTrampolinePlan(lldb_private::Thread &thread,
-                                 bool stop_others);
+                                 bool stop_others) override;
 
-    virtual lldb_private::Error
-    CanLoadImage();
+    lldb_private::Error
+    CanLoadImage() override;
 
-    virtual lldb::addr_t
-    GetThreadLocalData (const lldb::ModuleSP module, const lldb::ThreadSP thread);
+    lldb::addr_t
+    GetThreadLocalData(const lldb::ModuleSP module, const lldb::ThreadSP thread) override;
 
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
 
-    virtual uint32_t
-    GetPluginVersion();
-
-    virtual void
-    GetPluginCommandHelp(const char *command, lldb_private::Stream *strm);
-
-    virtual lldb_private::Error
-    ExecutePluginCommand(lldb_private::Args &command, lldb_private::Stream *strm);
-
-    virtual lldb_private::Log *
-    EnablePluginLogging(lldb_private::Stream *strm, lldb_private::Args &command);
+    uint32_t
+    GetPluginVersion() override;
 
 protected:
     /// Runtime linker rendezvous structure.
@@ -124,18 +114,22 @@ protected:
     void
     UpdateLoadedSections(lldb::ModuleSP module,
                          lldb::addr_t link_map_addr,
-                         lldb::addr_t base_addr);
+                         lldb::addr_t base_addr,
+                         bool base_addr_is_offset) override;
 
     /// Removes the loaded sections from the target in @p module.
     ///
     /// @param module The module to traverse.
     void
-    UnloadSections(const lldb::ModuleSP module);
+    UnloadSections(const lldb::ModuleSP module) override;
 
     /// Locates or creates a module given by @p file and updates/loads the
     /// resulting module at the virtual base address @p base_addr.
     lldb::ModuleSP
-    LoadModuleAtAddress(const lldb_private::FileSpec &file, lldb::addr_t link_map_addr, lldb::addr_t base_addr);
+    LoadModuleAtAddress(const lldb_private::FileSpec &file,
+                        lldb::addr_t link_map_addr,
+                        lldb::addr_t base_addr,
+                        bool base_addr_is_offset) override;
 
     /// Callback routine invoked when we hit the breakpoint on process entry.
     ///
@@ -173,10 +167,10 @@ protected:
     FindRendezvousBreakpointAddress( );
 
 private:
-    DISALLOW_COPY_AND_ASSIGN(DynamicLoaderHexagonDYLD);
-
     const lldb_private::SectionList *
     GetSectionListFromModule(const lldb::ModuleSP module) const;
+
+    DISALLOW_COPY_AND_ASSIGN(DynamicLoaderHexagonDYLD);
 };
 
-#endif  // liblldb_DynamicLoaderHexagonDYLD_H_
+#endif // liblldb_DynamicLoaderHexagonDYLD_h_
diff --git a/source/Plugins/DynamicLoader/POSIX-DYLD/DYLDRendezvous.cpp b/source/Plugins/DynamicLoader/POSIX-DYLD/DYLDRendezvous.cpp
index 8b1dd283394b6..09e874a011df1 100644
--- a/source/Plugins/DynamicLoader/POSIX-DYLD/DYLDRendezvous.cpp
+++ b/source/Plugins/DynamicLoader/POSIX-DYLD/DYLDRendezvous.cpp
@@ -17,6 +17,7 @@
 #include "lldb/Symbol/ObjectFile.h"
 #include "lldb/Symbol/Symbol.h"
 #include "lldb/Symbol/SymbolContext.h"
+#include "lldb/Target/Platform.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/Target.h"
 
@@ -290,19 +291,13 @@ DYLDRendezvous::SOEntryIsMainExecutable(const SOEntry &entry)
     // FreeBSD and on Android it is the full path to the executable.
 
     auto triple = m_process->GetTarget().GetArchitecture().GetTriple();
-    auto os_type = triple.getOS();
-    auto env_type = triple.getEnvironment();
-
-    switch (os_type) {
+    switch (triple.getOS()) {
         case llvm::Triple::FreeBSD:
             return entry.file_spec == m_exe_file_spec;
         case llvm::Triple::Linux:
-            switch (env_type) {
-                case llvm::Triple::Android:
-                    return entry.file_spec == m_exe_file_spec;
-                default:
-                    return !entry.file_spec;
-            }
+            if (triple.isAndroid())
+                return entry.file_spec == m_exe_file_spec;
+            return !entry.file_spec;
         default:
             return false;
     }
@@ -372,6 +367,25 @@ DYLDRendezvous::ReadStringFromMemory(addr_t addr)
     return str;
 }
 
+// Returns true if the load bias reported by the linker is incorrect for the given entry. This
+// function is used to handle cases where we want to work around a bug in the system linker.
+static bool
+isLoadBiasIncorrect(Target& target, const std::string& file_path)
+{
+    // On Android L (API 21, 22) the load address of the "/system/bin/linker" isn't filled in
+    // correctly.
+    uint32_t os_major = 0, os_minor = 0, os_update = 0;
+    if (target.GetArchitecture().GetTriple().isAndroid() &&
+        target.GetPlatform()->GetOSVersion(os_major, os_minor, os_update) &&
+        (os_major == 21 || os_major == 22) &&
+        (file_path == "/system/bin/linker" || file_path == "/system/bin/linker64"))
+    {
+        return true;
+    }
+
+    return false;
+}
+
 bool
 DYLDRendezvous::ReadSOEntryFromMemory(lldb::addr_t addr, SOEntry &entry)
 {
@@ -413,11 +427,9 @@ DYLDRendezvous::ReadSOEntryFromMemory(lldb::addr_t addr, SOEntry &entry)
     std::string file_path = ReadStringFromMemory(entry.path_addr);
     entry.file_spec.SetFile(file_path, false);
 
-    // On Android L (5.0, 5.1) the load address of the "/system/bin/linker" isn't filled in
-    // correctly. To get the correct load address we fetch the load address of the file from the
-    // proc file system.
-    if (arch.GetTriple().getEnvironment() == llvm::Triple::Android && entry.base_addr == 0 &&
-        (file_path == "/system/bin/linker" || file_path == "/system/bin/linker64"))
+    // If the load bias reported by the linker is incorrect then fetch the load address of the file
+    // from the proc file system.
+    if (isLoadBiasIncorrect(m_process->GetTarget(), file_path))
     {
         lldb::addr_t load_addr = LLDB_INVALID_ADDRESS;
         bool is_loaded = false;
diff --git a/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.cpp b/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.cpp
index 8724fc039cb91..6ba7b470d7435 100644
--- a/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.cpp
+++ b/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.cpp
@@ -62,11 +62,6 @@ DynamicLoaderPOSIXDYLD::GetPluginDescriptionStatic()
            "loads/unloads in POSIX processes.";
 }
 
-void
-DynamicLoaderPOSIXDYLD::GetPluginCommandHelp(const char *command, Stream *strm)
-{
-}
-
 uint32_t
 DynamicLoaderPOSIXDYLD::GetPluginVersion()
 {
@@ -96,7 +91,8 @@ DynamicLoaderPOSIXDYLD::DynamicLoaderPOSIXDYLD(Process *process)
       m_load_offset(LLDB_INVALID_ADDRESS),
       m_entry_point(LLDB_INVALID_ADDRESS),
       m_auxv(),
-      m_dyld_bid(LLDB_INVALID_BREAK_ID)
+      m_dyld_bid(LLDB_INVALID_BREAK_ID),
+      m_vdso_base(LLDB_INVALID_ADDRESS)
 {
 }
 
@@ -131,6 +127,8 @@ DynamicLoaderPOSIXDYLD::DidAttach()
     if (log)
         log->Printf ("DynamicLoaderPOSIXDYLD::%s pid %" PRIu64 " executable '%s', load_offset 0x%" PRIx64, __FUNCTION__, m_process ? m_process->GetID () : LLDB_INVALID_PROCESS_ID, executable_sp ? executable_sp->GetFileSpec().GetPath().c_str () : "<null executable>", load_offset);
 
+    EvalVdsoStatus();
+
     // if we dont have a load address we cant re-base
     bool rebase_exec = (load_offset == LLDB_INVALID_ADDRESS) ? false : true;
 
@@ -165,7 +163,7 @@ DynamicLoaderPOSIXDYLD::DidAttach()
                          m_process ? m_process->GetID () : LLDB_INVALID_PROCESS_ID,
                          executable_sp->GetFileSpec().GetPath().c_str ());
 
-        UpdateLoadedSections(executable_sp, LLDB_INVALID_ADDRESS, load_offset);
+        UpdateLoadedSections(executable_sp, LLDB_INVALID_ADDRESS, load_offset, true);
 
         // When attaching to a target, there are two possible states:
         // (1) We already crossed the entry point and therefore the rendezvous
@@ -218,12 +216,13 @@ DynamicLoaderPOSIXDYLD::DidLaunch()
 
     executable = GetTargetExecutable();
     load_offset = ComputeLoadOffset();
+    EvalVdsoStatus();
 
     if (executable.get() && load_offset != LLDB_INVALID_ADDRESS)
     {
         ModuleList module_list;
         module_list.Append(executable);
-        UpdateLoadedSections(executable, LLDB_INVALID_ADDRESS, load_offset);
+        UpdateLoadedSections(executable, LLDB_INVALID_ADDRESS, load_offset, true);
 
         if (log)
             log->Printf ("DynamicLoaderPOSIXDYLD::%s about to call ProbeEntry()", __FUNCTION__);
@@ -234,29 +233,19 @@ DynamicLoaderPOSIXDYLD::DidLaunch()
 }
 
 Error
-DynamicLoaderPOSIXDYLD::ExecutePluginCommand(Args &command, Stream *strm)
-{
-    return Error();
-}
-
-Log *
-DynamicLoaderPOSIXDYLD::EnablePluginLogging(Stream *strm, Args &command)
-{
-    return NULL;
-}
-
-Error
 DynamicLoaderPOSIXDYLD::CanLoadImage()
 {
     return Error();
 }
 
 void
-DynamicLoaderPOSIXDYLD::UpdateLoadedSections(ModuleSP module, addr_t link_map_addr, addr_t base_addr)
+DynamicLoaderPOSIXDYLD::UpdateLoadedSections(ModuleSP module,
+                                             addr_t link_map_addr,
+                                             addr_t base_addr,
+                                             bool base_addr_is_offset)
 {
     m_loaded_modules[module] = link_map_addr;
-
-    UpdateLoadedSectionsCommon(module, base_addr);
+    UpdateLoadedSectionsCommon(module, base_addr, base_addr_is_offset);
 }
 
 void
@@ -414,7 +403,7 @@ DynamicLoaderPOSIXDYLD::RefreshModules()
         E = m_rendezvous.loaded_end();
         for (I = m_rendezvous.loaded_begin(); I != E; ++I)
         {
-            ModuleSP module_sp = LoadModuleAtAddress(I->file_spec, I->link_addr, I->base_addr);
+            ModuleSP module_sp = LoadModuleAtAddress(I->file_spec, I->link_addr, I->base_addr, true);
             if (module_sp.get())
             {
                 loaded_modules.AppendIfNeeded(module_sp);
@@ -432,8 +421,7 @@ DynamicLoaderPOSIXDYLD::RefreshModules()
         for (I = m_rendezvous.unloaded_begin(); I != E; ++I)
         {
             ModuleSpec module_spec{I->file_spec};
-            ModuleSP module_sp =
-                loaded_modules.FindFirstModule (module_spec);
+            ModuleSP module_sp = loaded_modules.FindFirstModule (module_spec);
 
             if (module_sp.get())
             {
@@ -519,11 +507,18 @@ DynamicLoaderPOSIXDYLD::LoadAllCurrentModules()
     // that ourselves here.
     ModuleSP executable = GetTargetExecutable();
     m_loaded_modules[executable] = m_rendezvous.GetLinkMapAddress();
-
-
+    if (m_vdso_base != LLDB_INVALID_ADDRESS)
+    {
+        FileSpec file_spec("[vdso]", false);
+        ModuleSP module_sp = LoadModuleAtAddress(file_spec, LLDB_INVALID_ADDRESS, m_vdso_base, false);
+        if (module_sp.get())
+        {
+            module_list.Append(module_sp);
+        }
+    }
     for (I = m_rendezvous.begin(), E = m_rendezvous.end(); I != E; ++I)
     {
-        ModuleSP module_sp = LoadModuleAtAddress(I->file_spec, I->link_addr, I->base_addr);
+        ModuleSP module_sp = LoadModuleAtAddress(I->file_spec, I->link_addr, I->base_addr, true);
         if (module_sp.get())
         {
             module_list.Append(module_sp);
@@ -568,6 +563,16 @@ DynamicLoaderPOSIXDYLD::ComputeLoadOffset()
     return m_load_offset;
 }
 
+void
+DynamicLoaderPOSIXDYLD::EvalVdsoStatus()
+{
+    AuxVector::iterator I = m_auxv->FindEntry(AuxVector::AT_SYSINFO_EHDR);
+
+    if (I != m_auxv->end())
+        m_vdso_base = I->value;
+
+}
+
 addr_t
 DynamicLoaderPOSIXDYLD::GetEntryPoint()
 {
diff --git a/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.h b/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.h
index 68d3059cb4bec..cb97bbf43ba92 100644
--- a/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.h
+++ b/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.h
@@ -1,4 +1,4 @@
-//===-- DynamicLoaderPOSIX.h ------------------------------------*- C++ -*-===//
+//===-- DynamicLoaderPOSIXDYLD.h --------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,12 +7,13 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef liblldb_DynamicLoaderPOSIX_H_
-#define liblldb_DynamicLoaderPOSIX_H_
+#ifndef liblldb_DynamicLoaderPOSIXDYLD_h_
+#define liblldb_DynamicLoaderPOSIXDYLD_h_
 
 // C Includes
 // C++ Includes
 // Other libraries and framework includes
+// Project includes
 #include "lldb/Breakpoint/StoppointCallbackContext.h"
 #include "lldb/Target/DynamicLoader.h"
 
@@ -23,6 +24,9 @@ class AuxVector;
 class DynamicLoaderPOSIXDYLD : public lldb_private::DynamicLoader
 {
 public:
+    DynamicLoaderPOSIXDYLD(lldb_private::Process *process);
+
+    ~DynamicLoaderPOSIXDYLD() override;
 
     static void
     Initialize();
@@ -39,48 +43,34 @@ public:
     static lldb_private::DynamicLoader *
     CreateInstance(lldb_private::Process *process, bool force);
 
-    DynamicLoaderPOSIXDYLD(lldb_private::Process *process);
-
-    virtual
-    ~DynamicLoaderPOSIXDYLD();
-
     //------------------------------------------------------------------
     // DynamicLoader protocol
     //------------------------------------------------------------------
 
-    virtual void
-    DidAttach();
+    void
+    DidAttach() override;
 
-    virtual void
-    DidLaunch();
+    void
+    DidLaunch() override;
 
-    virtual lldb::ThreadPlanSP
+    lldb::ThreadPlanSP
     GetStepThroughTrampolinePlan(lldb_private::Thread &thread,
-                                 bool stop_others);
+                                 bool stop_others) override;
 
-    virtual lldb_private::Error
-    CanLoadImage();
+    lldb_private::Error
+    CanLoadImage() override;
 
-    virtual lldb::addr_t
-    GetThreadLocalData (const lldb::ModuleSP module, const lldb::ThreadSP thread);
+    lldb::addr_t
+    GetThreadLocalData(const lldb::ModuleSP module, const lldb::ThreadSP thread) override;
 
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
-
-    virtual uint32_t
-    GetPluginVersion();
-
-    virtual void
-    GetPluginCommandHelp(const char *command, lldb_private::Stream *strm);
+    lldb_private::ConstString
+    GetPluginName() override;
 
-    virtual lldb_private::Error
-    ExecutePluginCommand(lldb_private::Args &command, lldb_private::Stream *strm);
-
-    virtual lldb_private::Log *
-    EnablePluginLogging(lldb_private::Stream *strm, lldb_private::Args &command);
+    uint32_t
+    GetPluginVersion() override;
 
 protected:
     /// Runtime linker rendezvous structure.
@@ -98,12 +88,16 @@ protected:
     /// Rendezvous breakpoint.
     lldb::break_id_t m_dyld_bid;
 
+    /// Contains AT_SYSINFO_EHDR, which means a vDSO has been
+    /// mapped to the address space
+    lldb::addr_t m_vdso_base;
+
     /// Loaded module list. (link map for each module)
     std::map<lldb::ModuleWP, lldb::addr_t, std::owner_less<lldb::ModuleWP>> m_loaded_modules;
 
     /// Enables a breakpoint on a function called by the runtime
     /// linker each time a module is loaded or unloaded.
-    void
+    virtual void
     SetRendezvousBreakpoint();
 
     /// Callback routine which updates the current list of loaded modules based
@@ -126,16 +120,17 @@ protected:
     /// @param link_map_addr The virtual address of the link map for the @p module.
     ///
     /// @param base_addr The virtual base address @p module is loaded at.
-    virtual void
+    void
     UpdateLoadedSections(lldb::ModuleSP module,
                          lldb::addr_t link_map_addr,
-                         lldb::addr_t base_addr);
+                         lldb::addr_t base_addr,
+                         bool base_addr_is_offset) override;
 
     /// Removes the loaded sections from the target in @p module.
     ///
     /// @param module The module to traverse.
-    virtual void
-    UnloadSections(const lldb::ModuleSP module);
+    void
+    UnloadSections(const lldb::ModuleSP module) override;
 
     /// Resolves the entry point for the current inferior process and sets a
     /// breakpoint at that address.
@@ -155,7 +150,7 @@ protected:
 
     /// Helper for the entry breakpoint callback.  Resolves the load addresses
     /// of all dependent modules.
-    void
+    virtual void
     LoadAllCurrentModules();
 
     /// Computes a value for m_load_offset returning the computed address on
@@ -168,6 +163,11 @@ protected:
     lldb::addr_t
     GetEntryPoint();
 
+    /// Evaluate if Aux vectors contain vDSO information
+    /// in case they do, read and assign the address to m_vdso_base
+    void
+    EvalVdsoStatus();
+
     /// Loads Module from inferior process.
     void
     ResolveExecutableModule(lldb::ModuleSP &module_sp);
@@ -176,4 +176,4 @@ private:
     DISALLOW_COPY_AND_ASSIGN(DynamicLoaderPOSIXDYLD);
 };
 
-#endif  // liblldb_DynamicLoaderPOSIXDYLD_H_
+#endif // liblldb_DynamicLoaderPOSIXDYLD_h_
diff --git a/source/Plugins/DynamicLoader/Static/DynamicLoaderStatic.h b/source/Plugins/DynamicLoader/Static/DynamicLoaderStatic.h
index ea33164cf8233..a7fdf4d221656 100644
--- a/source/Plugins/DynamicLoader/Static/DynamicLoaderStatic.h
+++ b/source/Plugins/DynamicLoader/Static/DynamicLoaderStatic.h
@@ -12,12 +12,8 @@
 
 // C Includes
 // C++ Includes
-#include <map>
-#include <vector>
-#include <string>
-
 // Other libraries and framework includes
-
+// Project includes
 #include "lldb/Target/DynamicLoader.h"
 #include "lldb/Host/FileSpec.h"
 #include "lldb/Core/UUID.h"
@@ -27,6 +23,10 @@
 class DynamicLoaderStatic : public lldb_private::DynamicLoader
 {
 public:
+    DynamicLoaderStatic(lldb_private::Process *process);
+
+    ~DynamicLoaderStatic() override;
+
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
@@ -45,37 +45,33 @@ public:
     static lldb_private::DynamicLoader *
     CreateInstance (lldb_private::Process *process, bool force);
 
-    DynamicLoaderStatic (lldb_private::Process *process);
-
-    virtual
-    ~DynamicLoaderStatic ();
     //------------------------------------------------------------------
     /// Called after attaching a process.
     ///
     /// Allow DynamicLoader plug-ins to execute some code after
     /// attaching to a process.
     //------------------------------------------------------------------
-    virtual void
-    DidAttach ();
+    void
+    DidAttach() override;
 
-    virtual void
-    DidLaunch ();
+    void
+    DidLaunch() override;
 
-    virtual lldb::ThreadPlanSP
-    GetStepThroughTrampolinePlan (lldb_private::Thread &thread,
-                                  bool stop_others);
+    lldb::ThreadPlanSP
+    GetStepThroughTrampolinePlan(lldb_private::Thread &thread,
+                                 bool stop_others) override;
 
-    virtual lldb_private::Error
-    CanLoadImage ();
+    lldb_private::Error
+    CanLoadImage() override;
 
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
 
-    virtual uint32_t
-    GetPluginVersion();
+    uint32_t
+    GetPluginVersion() override;
 
 private:
     void
@@ -84,4 +80,4 @@ private:
     DISALLOW_COPY_AND_ASSIGN (DynamicLoaderStatic);
 };
 
-#endif  // liblldb_DynamicLoaderStatic_h_
+#endif // liblldb_DynamicLoaderStatic_h_
diff --git a/source/Plugins/DynamicLoader/Windows-DYLD/DynamicLoaderWindowsDYLD.cpp b/source/Plugins/DynamicLoader/Windows-DYLD/DynamicLoaderWindowsDYLD.cpp
index 56b56ab3a1949..dd391b4ca4d2a 100644
--- a/source/Plugins/DynamicLoader/Windows-DYLD/DynamicLoaderWindowsDYLD.cpp
+++ b/source/Plugins/DynamicLoader/Windows-DYLD/DynamicLoaderWindowsDYLD.cpp
@@ -21,40 +21,39 @@ using namespace lldb_private;
 DynamicLoaderWindowsDYLD::DynamicLoaderWindowsDYLD(Process *process)
     : DynamicLoader(process)
 {
-
 }
 
 DynamicLoaderWindowsDYLD::~DynamicLoaderWindowsDYLD()
 {
-
 }
 
-void DynamicLoaderWindowsDYLD::Initialize()
+void
+DynamicLoaderWindowsDYLD::Initialize()
 {
-    PluginManager::RegisterPlugin(GetPluginNameStatic(),
-                                  GetPluginDescriptionStatic(),
-                                  CreateInstance);
+    PluginManager::RegisterPlugin(GetPluginNameStatic(), GetPluginDescriptionStatic(), CreateInstance);
 }
 
-void DynamicLoaderWindowsDYLD::Terminate()
+void
+DynamicLoaderWindowsDYLD::Terminate()
 {
-
 }
 
-ConstString DynamicLoaderWindowsDYLD::GetPluginNameStatic()
+ConstString
+DynamicLoaderWindowsDYLD::GetPluginNameStatic()
 {
     static ConstString g_plugin_name("windows-dyld");
     return g_plugin_name;
 }
 
-const char *DynamicLoaderWindowsDYLD::GetPluginDescriptionStatic()
+const char *
+DynamicLoaderWindowsDYLD::GetPluginDescriptionStatic()
 {
     return "Dynamic loader plug-in that watches for shared library "
            "loads/unloads in Windows processes.";
 }
 
-
-DynamicLoader *DynamicLoaderWindowsDYLD::CreateInstance(Process *process, bool force)
+DynamicLoader *
+DynamicLoaderWindowsDYLD::CreateInstance(Process *process, bool force)
 {
     bool should_create = force;
     if (!should_create)
@@ -65,32 +64,35 @@ DynamicLoader *DynamicLoaderWindowsDYLD::CreateInstance(Process *process, bool f
     }
 
     if (should_create)
-        return new DynamicLoaderWindowsDYLD (process);
+        return new DynamicLoaderWindowsDYLD(process);
 
     return nullptr;
 }
 
-void DynamicLoaderWindowsDYLD::DidAttach()
+void
+DynamicLoaderWindowsDYLD::DidAttach()
 {
-
 }
 
-void DynamicLoaderWindowsDYLD::DidLaunch()
+void
+DynamicLoaderWindowsDYLD::DidLaunch()
 {
-
 }
 
-Error DynamicLoaderWindowsDYLD::CanLoadImage()
+Error
+DynamicLoaderWindowsDYLD::CanLoadImage()
 {
     return Error();
 }
 
-ConstString DynamicLoaderWindowsDYLD::GetPluginName()
+ConstString
+DynamicLoaderWindowsDYLD::GetPluginName()
 {
     return GetPluginNameStatic();
 }
 
-uint32_t DynamicLoaderWindowsDYLD::GetPluginVersion()
+uint32_t
+DynamicLoaderWindowsDYLD::GetPluginVersion()
 {
     return 1;
 }
diff --git a/source/Plugins/DynamicLoader/Windows-DYLD/DynamicLoaderWindowsDYLD.h b/source/Plugins/DynamicLoader/Windows-DYLD/DynamicLoaderWindowsDYLD.h
index d12b999f4627c..8c479819c535b 100644
--- a/source/Plugins/DynamicLoader/Windows-DYLD/DynamicLoaderWindowsDYLD.h
+++ b/source/Plugins/DynamicLoader/Windows-DYLD/DynamicLoaderWindowsDYLD.h
@@ -1,4 +1,4 @@
-//===-- DynamicLoaderWindowsDYLDh ----------------------------------*- C++ -*-===//
+//===-- DynamicLoaderWindowsDYLD.h ------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,9 +7,13 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef liblldb_Plugins_Process_Windows_DynamicLoaderWindowsDYLD_H_
-#define liblldb_Plugins_Process_Windows_DynamicLoaderWindowsDYLD_H_
+#ifndef liblldb_Plugins_Process_Windows_DynamicLoaderWindowsDYLD_h_
+#define liblldb_Plugins_Process_Windows_DynamicLoaderWindowsDYLD_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-forward.h"
 #include "lldb/Target/DynamicLoader.h"
 
@@ -18,9 +22,10 @@ namespace lldb_private
 
 class DynamicLoaderWindowsDYLD : public DynamicLoader
 {
-  public:
+public:
     DynamicLoaderWindowsDYLD(Process *process);
-    virtual ~DynamicLoaderWindowsDYLD();
+
+    ~DynamicLoaderWindowsDYLD() override;
 
     static void Initialize();
     static void Terminate();
@@ -29,15 +34,15 @@ class DynamicLoaderWindowsDYLD : public DynamicLoader
 
     static DynamicLoader *CreateInstance(Process *process, bool force);
 
-    void DidAttach () override;
-    void DidLaunch () override;
-    Error CanLoadImage () override;
+    void DidAttach() override;
+    void DidLaunch() override;
+    Error CanLoadImage() override;
     lldb::ThreadPlanSP GetStepThroughTrampolinePlan(Thread &thread, bool stop) override;
 
     ConstString GetPluginName() override;
     uint32_t GetPluginVersion() override;
 };
 
-}
+} // namespace lldb_private
 
-#endif
+#endif // liblldb_Plugins_Process_Windows_DynamicLoaderWindowsDYLD_h_
diff --git a/source/Plugins/ExpressionParser/Clang/ASTDumper.cpp b/source/Plugins/ExpressionParser/Clang/ASTDumper.cpp
new file mode 100644
index 0000000000000..976310610f51d
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ASTDumper.cpp
@@ -0,0 +1,134 @@
+//===-- ASTDumper.cpp -------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ASTDumper.h"
+
+#include "lldb/Core/Log.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Symbol/CompilerType.h"
+
+#include "llvm/Support/raw_ostream.h"
+
+using namespace lldb_private;
+
+ASTDumper::ASTDumper (clang::Decl *decl)
+{
+    clang::DeclContext *decl_ctx = llvm::dyn_cast<clang::DeclContext>(decl);
+    
+    bool has_external_lexical_storage;
+    bool has_external_visible_storage;
+    
+    if (decl_ctx)
+    {
+        has_external_lexical_storage = decl_ctx->hasExternalLexicalStorage();
+        has_external_visible_storage = decl_ctx->hasExternalVisibleStorage();
+        decl_ctx->setHasExternalLexicalStorage(false);
+        decl_ctx->setHasExternalVisibleStorage(false);
+    }
+    
+    llvm::raw_string_ostream os(m_dump);
+    decl->print (os);
+    os.flush();
+    
+    if (decl_ctx)
+    {
+        decl_ctx->setHasExternalLexicalStorage(has_external_lexical_storage);
+        decl_ctx->setHasExternalVisibleStorage(has_external_visible_storage);
+    }
+}
+
+ASTDumper::ASTDumper (clang::DeclContext *decl_ctx)
+{
+    bool has_external_lexical_storage = decl_ctx->hasExternalLexicalStorage();
+    bool has_external_visible_storage = decl_ctx->hasExternalVisibleStorage();
+    
+    decl_ctx->setHasExternalLexicalStorage(false);
+    decl_ctx->setHasExternalVisibleStorage(false);
+    
+    if (clang::Decl *decl = llvm::dyn_cast<clang::Decl>(decl_ctx))
+    {
+        llvm::raw_string_ostream os(m_dump);
+        decl->print (os);
+        os.flush();
+    }
+    else
+    {
+        m_dump.assign("<DeclContext is not a Decl>");
+    }
+    
+    decl_ctx->setHasExternalLexicalStorage(has_external_lexical_storage);
+    decl_ctx->setHasExternalVisibleStorage(has_external_visible_storage);
+}
+
+ASTDumper::ASTDumper (const clang::Type *type)
+{
+    m_dump = clang::QualType(type, 0).getAsString();
+}
+
+ASTDumper::ASTDumper (clang::QualType type)
+{
+    m_dump = type.getAsString();
+}
+
+ASTDumper::ASTDumper (lldb::opaque_compiler_type_t type)
+{
+    m_dump = clang::QualType::getFromOpaquePtr(type).getAsString();
+}
+
+ASTDumper::ASTDumper (const CompilerType &compiler_type)
+{
+    m_dump = ClangASTContext::GetQualType(compiler_type).getAsString();
+}
+
+
+const char *
+ASTDumper::GetCString()
+{
+    return m_dump.c_str();
+}
+
+void ASTDumper::ToSTDERR()
+{
+    fprintf(stderr, "%s\n", m_dump.c_str());
+}
+
+void ASTDumper::ToLog(Log *log, const char *prefix)
+{
+    size_t len = m_dump.length() + 1;
+    
+    char *alloc = (char*)malloc(len);
+    char *str = alloc;
+    
+    memcpy(str, m_dump.c_str(), len);
+    
+    char *end = NULL;
+    
+    end = strchr(str, '\n');
+    
+    while (end)
+    {
+        *end = '\0';
+        
+        log->Printf("%s%s", prefix, str);
+        
+        *end = '\n';
+        
+        str = end + 1;
+        end = strchr(str, '\n');
+    }
+    
+    log->Printf("%s%s", prefix, str);
+                    
+    free(alloc);
+}
+
+void ASTDumper::ToStream(lldb::StreamSP &stream)
+{
+    stream->PutCString(m_dump.c_str());
+}
diff --git a/source/Plugins/ExpressionParser/Clang/ASTDumper.h b/source/Plugins/ExpressionParser/Clang/ASTDumper.h
new file mode 100644
index 0000000000000..c8dc6847d6c2d
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ASTDumper.h
@@ -0,0 +1,42 @@
+//===-- ASTDumper.h ---------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ASTDumper_h_
+#define liblldb_ASTDumper_h_
+
+#include "clang/AST/DeclVisitor.h"
+#include "clang/AST/TypeVisitor.h"
+
+#include "lldb/Core/Stream.h"
+#include "llvm/ADT/DenseSet.h"
+
+namespace lldb_private
+{
+    
+class ASTDumper
+{
+public:
+    ASTDumper (clang::Decl *decl);
+    ASTDumper (clang::DeclContext *decl_ctx);
+    ASTDumper (const clang::Type *type);
+    ASTDumper (clang::QualType type);
+    ASTDumper (lldb::opaque_compiler_type_t type);
+    ASTDumper (const CompilerType &compiler_type);
+    
+    const char *GetCString();
+    void ToSTDERR();
+    void ToLog(Log *log, const char *prefix);
+    void ToStream(lldb::StreamSP &stream);
+private:
+    std::string m_dump;
+};
+
+} // namespace lldb_private
+
+#endif
diff --git a/source/Plugins/ExpressionParser/Clang/ASTResultSynthesizer.cpp b/source/Plugins/ExpressionParser/Clang/ASTResultSynthesizer.cpp
new file mode 100644
index 0000000000000..02505bde240c2
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ASTResultSynthesizer.cpp
@@ -0,0 +1,514 @@
+//===-- ASTResultSynthesizer.cpp --------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ASTResultSynthesizer.h"
+
+#include "ClangPersistentVariables.h"
+
+#include "stdlib.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/Decl.h"
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclGroup.h"
+#include "clang/AST/DeclObjC.h"
+#include "clang/AST/Expr.h"
+#include "clang/AST/Stmt.h"
+#include "clang/Parse/Parser.h"
+#include "clang/Sema/SemaDiagnostic.h"
+#include "llvm/Support/Casting.h"
+#include "llvm/Support/raw_ostream.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Symbol/ClangASTImporter.h"
+#include "lldb/Target/Target.h"
+
+using namespace llvm;
+using namespace clang;
+using namespace lldb_private;
+
+ASTResultSynthesizer::ASTResultSynthesizer(ASTConsumer *passthrough,
+                                           Target &target) :
+    m_ast_context (NULL),
+    m_passthrough (passthrough),
+    m_passthrough_sema (NULL),
+    m_target (target),
+    m_sema (NULL)
+{
+    if (!m_passthrough)
+        return;
+
+    m_passthrough_sema = dyn_cast<SemaConsumer>(passthrough);
+}
+
+ASTResultSynthesizer::~ASTResultSynthesizer()
+{
+}
+
+void
+ASTResultSynthesizer::Initialize(ASTContext &Context)
+{
+    m_ast_context = &Context;
+
+    if (m_passthrough)
+        m_passthrough->Initialize(Context);
+}
+
+void
+ASTResultSynthesizer::TransformTopLevelDecl(Decl* D)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (NamedDecl *named_decl = dyn_cast<NamedDecl>(D))
+    {
+        if (log && log->GetVerbose())
+        {
+            if (named_decl->getIdentifier())
+                log->Printf("TransformTopLevelDecl(%s)", named_decl->getIdentifier()->getNameStart());
+            else if (ObjCMethodDecl *method_decl = dyn_cast<ObjCMethodDecl>(D))
+                log->Printf("TransformTopLevelDecl(%s)", method_decl->getSelector().getAsString().c_str());
+            else
+                log->Printf("TransformTopLevelDecl(<complex>)");
+        }
+
+    }
+
+    if (LinkageSpecDecl *linkage_spec_decl = dyn_cast<LinkageSpecDecl>(D))
+    {
+        RecordDecl::decl_iterator decl_iterator;
+
+        for (decl_iterator = linkage_spec_decl->decls_begin();
+             decl_iterator != linkage_spec_decl->decls_end();
+             ++decl_iterator)
+        {
+            TransformTopLevelDecl(*decl_iterator);
+        }
+    }
+    else if (ObjCMethodDecl *method_decl = dyn_cast<ObjCMethodDecl>(D))
+    {
+        if (m_ast_context &&
+            !method_decl->getSelector().getAsString().compare("$__lldb_expr:"))
+        {
+            RecordPersistentTypes(method_decl);
+            SynthesizeObjCMethodResult(method_decl);
+        }
+    }
+    else if (FunctionDecl *function_decl = dyn_cast<FunctionDecl>(D))
+    {
+        if (m_ast_context &&
+            !function_decl->getNameInfo().getAsString().compare("$__lldb_expr"))
+        {
+            RecordPersistentTypes(function_decl);
+            SynthesizeFunctionResult(function_decl);
+        }
+    }
+}
+
+bool
+ASTResultSynthesizer::HandleTopLevelDecl(DeclGroupRef D)
+{
+    DeclGroupRef::iterator decl_iterator;
+
+    for (decl_iterator = D.begin();
+         decl_iterator != D.end();
+         ++decl_iterator)
+    {
+        Decl *decl = *decl_iterator;
+
+        TransformTopLevelDecl(decl);
+    }
+
+    if (m_passthrough)
+        return m_passthrough->HandleTopLevelDecl(D);
+    return true;
+}
+
+bool
+ASTResultSynthesizer::SynthesizeFunctionResult (FunctionDecl *FunDecl)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (!m_sema)
+        return false;
+
+    FunctionDecl *function_decl = FunDecl;
+
+    if (!function_decl)
+        return false;
+
+    if (log && log->GetVerbose())
+    {
+        std::string s;
+        raw_string_ostream os(s);
+
+        function_decl->print(os);
+
+        os.flush();
+
+        log->Printf ("Untransformed function AST:\n%s", s.c_str());
+    }
+
+    Stmt *function_body = function_decl->getBody();
+    CompoundStmt *compound_stmt = dyn_cast<CompoundStmt>(function_body);
+
+    bool ret = SynthesizeBodyResult (compound_stmt,
+                                     function_decl);
+
+    if (log && log->GetVerbose())
+    {
+        std::string s;
+        raw_string_ostream os(s);
+
+        function_decl->print(os);
+
+        os.flush();
+
+        log->Printf ("Transformed function AST:\n%s", s.c_str());
+    }
+
+    return ret;
+}
+
+bool
+ASTResultSynthesizer::SynthesizeObjCMethodResult (ObjCMethodDecl *MethodDecl)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (!m_sema)
+        return false;
+
+    if (!MethodDecl)
+        return false;
+
+    if (log && log->GetVerbose())
+    {
+        std::string s;
+        raw_string_ostream os(s);
+
+        MethodDecl->print(os);
+
+        os.flush();
+
+        log->Printf ("Untransformed method AST:\n%s", s.c_str());
+    }
+
+    Stmt *method_body = MethodDecl->getBody();
+
+    if (!method_body)
+        return false;
+
+    CompoundStmt *compound_stmt = dyn_cast<CompoundStmt>(method_body);
+
+    bool ret = SynthesizeBodyResult (compound_stmt,
+                                     MethodDecl);
+
+    if (log && log->GetVerbose())
+    {
+        std::string s;
+        raw_string_ostream os(s);
+
+        MethodDecl->print(os);
+
+        os.flush();
+
+        log->Printf("Transformed method AST:\n%s", s.c_str());
+    }
+
+    return ret;
+}
+
+bool
+ASTResultSynthesizer::SynthesizeBodyResult (CompoundStmt *Body,
+                                            DeclContext *DC)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    ASTContext &Ctx(*m_ast_context);
+
+    if (!Body)
+        return false;
+
+    if (Body->body_empty())
+        return false;
+
+    Stmt **last_stmt_ptr = Body->body_end() - 1;
+    Stmt *last_stmt = *last_stmt_ptr;
+
+    while (dyn_cast<NullStmt>(last_stmt))
+    {
+        if (last_stmt_ptr != Body->body_begin())
+        {
+            last_stmt_ptr--;
+            last_stmt = *last_stmt_ptr;
+        }
+        else
+        {
+            return false;
+        }
+    }
+
+    Expr *last_expr = dyn_cast<Expr>(last_stmt);
+
+    if (!last_expr)
+        // No auxiliary variable necessary; expression returns void
+        return true;
+
+    // In C++11, last_expr can be a LValueToRvalue implicit cast.  Strip that off if that's the
+    // case.
+
+    do {
+        ImplicitCastExpr *implicit_cast = dyn_cast<ImplicitCastExpr>(last_expr);
+
+        if (!implicit_cast)
+            break;
+
+        if (implicit_cast->getCastKind() != CK_LValueToRValue)
+            break;
+
+        last_expr = implicit_cast->getSubExpr();
+    } while (0);
+
+    // is_lvalue is used to record whether the expression returns an assignable Lvalue or an
+    // Rvalue.  This is relevant because they are handled differently.
+    //
+    // For Lvalues
+    //
+    //   - In AST result synthesis (here!) the expression E is transformed into an initialization
+    //     T *$__lldb_expr_result_ptr = &E.
+    //
+    //   - In structure allocation, a pointer-sized slot is allocated in the struct that is to be
+    //     passed into the expression.
+    //
+    //   - In IR transformations, reads and writes to $__lldb_expr_result_ptr are redirected at
+    //     an entry in the struct ($__lldb_arg) passed into the expression.  (Other persistent
+    //     variables are treated similarly, having been materialized as references, but in those
+    //     cases the value of the reference itself is never modified.)
+    //
+    //   - During materialization, $0 (the result persistent variable) is ignored.
+    //
+    //   - During dematerialization, $0 is marked up as a load address with value equal to the
+    //     contents of the structure entry.
+    //
+    // For Rvalues
+    //
+    //   - In AST result synthesis the expression E is transformed into an initialization
+    //     static T $__lldb_expr_result = E.
+    //
+    //   - In structure allocation, a pointer-sized slot is allocated in the struct that is to be
+    //     passed into the expression.
+    //
+    //   - In IR transformations, an instruction is inserted at the beginning of the function to
+    //     dereference the pointer resident in the slot.  Reads and writes to $__lldb_expr_result
+    //     are redirected at that dereferenced version.  Guard variables for the static variable
+    //     are excised.
+    //
+    //   - During materialization, $0 (the result persistent variable) is populated with the location
+    //     of a newly-allocated area of memory.
+    //
+    //   - During dematerialization, $0 is ignored.
+
+    bool is_lvalue =
+        (last_expr->getValueKind() == VK_LValue || last_expr->getValueKind() == VK_XValue) &&
+        (last_expr->getObjectKind() == OK_Ordinary);
+
+    QualType expr_qual_type = last_expr->getType();
+    const clang::Type *expr_type = expr_qual_type.getTypePtr();
+
+    if (!expr_type)
+        return false;
+
+    if (expr_type->isVoidType())
+        return true;
+
+    if (log)
+    {
+        std::string s = expr_qual_type.getAsString();
+
+        log->Printf("Last statement is an %s with type: %s", (is_lvalue ? "lvalue" : "rvalue"), s.c_str());
+    }
+
+    clang::VarDecl *result_decl = NULL;
+
+    if (is_lvalue)
+    {
+        IdentifierInfo *result_ptr_id;
+
+        if (expr_type->isFunctionType())
+            result_ptr_id = &Ctx.Idents.get("$__lldb_expr_result"); // functions actually should be treated like function pointers
+        else
+            result_ptr_id = &Ctx.Idents.get("$__lldb_expr_result_ptr");
+
+        m_sema->RequireCompleteType(SourceLocation(), expr_qual_type, clang::diag::err_incomplete_type);
+
+        QualType ptr_qual_type;
+
+        if (expr_qual_type->getAs<ObjCObjectType>() != NULL)
+            ptr_qual_type = Ctx.getObjCObjectPointerType(expr_qual_type);
+        else
+            ptr_qual_type = Ctx.getPointerType(expr_qual_type);
+
+        result_decl = VarDecl::Create(Ctx,
+                                      DC,
+                                      SourceLocation(),
+                                      SourceLocation(),
+                                      result_ptr_id,
+                                      ptr_qual_type,
+                                      NULL,
+                                      SC_Static);
+
+        if (!result_decl)
+            return false;
+
+        ExprResult address_of_expr = m_sema->CreateBuiltinUnaryOp(SourceLocation(), UO_AddrOf, last_expr);
+
+        m_sema->AddInitializerToDecl(result_decl, address_of_expr.get(), true, false);
+    }
+    else
+    {
+        IdentifierInfo &result_id = Ctx.Idents.get("$__lldb_expr_result");
+
+        result_decl = VarDecl::Create(Ctx,
+                                      DC,
+                                      SourceLocation(),
+                                      SourceLocation(),
+                                      &result_id,
+                                      expr_qual_type,
+                                      NULL,
+                                      SC_Static);
+
+        if (!result_decl)
+            return false;
+
+        m_sema->AddInitializerToDecl(result_decl, last_expr, true, false);
+    }
+
+    DC->addDecl(result_decl);
+
+    ///////////////////////////////
+    // call AddInitializerToDecl
+    //
+
+    //m_sema->AddInitializerToDecl(result_decl, last_expr);
+
+    /////////////////////////////////
+    // call ConvertDeclToDeclGroup
+    //
+
+    Sema::DeclGroupPtrTy result_decl_group_ptr;
+
+    result_decl_group_ptr = m_sema->ConvertDeclToDeclGroup(result_decl);
+
+    ////////////////////////
+    // call ActOnDeclStmt
+    //
+
+    StmtResult result_initialization_stmt_result(m_sema->ActOnDeclStmt(result_decl_group_ptr,
+                                                                       SourceLocation(),
+                                                                       SourceLocation()));
+
+    ////////////////////////////////////////////////
+    // replace the old statement with the new one
+    //
+
+    *last_stmt_ptr = reinterpret_cast<Stmt*>(result_initialization_stmt_result.get());
+
+    return true;
+}
+
+void
+ASTResultSynthesizer::HandleTranslationUnit(ASTContext &Ctx)
+{
+    if (m_passthrough)
+        m_passthrough->HandleTranslationUnit(Ctx);
+}
+
+void
+ASTResultSynthesizer::RecordPersistentTypes(DeclContext *FunDeclCtx)
+{
+    typedef DeclContext::specific_decl_iterator<TypeDecl> TypeDeclIterator;
+
+    for (TypeDeclIterator i = TypeDeclIterator(FunDeclCtx->decls_begin()),
+         e = TypeDeclIterator(FunDeclCtx->decls_end());
+         i != e;
+         ++i)
+    {
+        MaybeRecordPersistentType(*i);
+    }
+}
+
+void
+ASTResultSynthesizer::MaybeRecordPersistentType(TypeDecl *D)
+{
+    if (!D->getIdentifier())
+        return;
+
+    StringRef name = D->getName();
+
+    if (name.size() == 0 || name[0] != '$')
+        return;
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    ConstString name_cs(name.str().c_str());
+
+    if (log)
+        log->Printf ("Recording persistent type %s\n", name_cs.GetCString());
+
+    Decl *D_scratch = m_target.GetClangASTImporter()->DeportDecl(m_target.GetScratchClangASTContext()->getASTContext(),
+                                                                 m_ast_context,
+                                                                 D);
+
+    if (TypeDecl *TypeDecl_scratch = dyn_cast<TypeDecl>(D_scratch))
+        llvm::cast<ClangPersistentVariables>(m_target.GetPersistentExpressionStateForLanguage(lldb::eLanguageTypeC))->RegisterPersistentType(name_cs, TypeDecl_scratch);
+}
+
+void
+ASTResultSynthesizer::HandleTagDeclDefinition(TagDecl *D)
+{
+    if (m_passthrough)
+        m_passthrough->HandleTagDeclDefinition(D);
+}
+
+void
+ASTResultSynthesizer::CompleteTentativeDefinition(VarDecl *D)
+{
+    if (m_passthrough)
+        m_passthrough->CompleteTentativeDefinition(D);
+}
+
+void
+ASTResultSynthesizer::HandleVTable(CXXRecordDecl *RD)
+{
+    if (m_passthrough)
+        m_passthrough->HandleVTable(RD);
+}
+
+void
+ASTResultSynthesizer::PrintStats()
+{
+    if (m_passthrough)
+        m_passthrough->PrintStats();
+}
+
+void
+ASTResultSynthesizer::InitializeSema(Sema &S)
+{
+    m_sema = &S;
+
+    if (m_passthrough_sema)
+        m_passthrough_sema->InitializeSema(S);
+}
+
+void
+ASTResultSynthesizer::ForgetSema()
+{
+    m_sema = NULL;
+
+    if (m_passthrough_sema)
+        m_passthrough_sema->ForgetSema();
+}
diff --git a/source/Plugins/ExpressionParser/Clang/ASTResultSynthesizer.h b/source/Plugins/ExpressionParser/Clang/ASTResultSynthesizer.h
new file mode 100644
index 0000000000000..9f7bbe05b0822
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ASTResultSynthesizer.h
@@ -0,0 +1,185 @@
+//===-- ASTResultSynthesizer.h ----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ASTResultSynthesizer_h_
+#define liblldb_ASTResultSynthesizer_h_
+
+#include "clang/Sema/SemaConsumer.h"
+#include "lldb/Core/ClangForward.h"
+#include "lldb/Target/Target.h"
+
+namespace lldb_private {
+
+//----------------------------------------------------------------------
+/// @class ASTResultSynthesizer ASTResultSynthesizer.h "lldb/Expression/ASTResultSynthesizer.h"
+/// @brief Adds a result variable declaration to the ASTs for an expression.
+///
+/// Users expect the expression "i + 3" to return a result, even if a result
+/// variable wasn't specifically declared.  To fulfil this requirement, LLDB adds
+/// a result variable to the expression, transforming it to 
+/// "int $__lldb_expr_result = i + 3."  The IR transformers ensure that the
+/// resulting variable is mapped to the right piece of memory.
+/// ASTResultSynthesizer's job is to add the variable and its initialization to
+/// the ASTs for the expression, and it does so by acting as a SemaConsumer for
+/// Clang.
+//----------------------------------------------------------------------
+class ASTResultSynthesizer : public clang::SemaConsumer
+{
+public:
+    //----------------------------------------------------------------------
+    /// Constructor
+    ///
+    /// @param[in] passthrough
+    ///     Since the ASTs must typically go through to the Clang code generator
+    ///     in order to produce LLVM IR, this SemaConsumer must allow them to
+    ///     pass to the next step in the chain after processing.  Passthrough is
+    ///     the next ASTConsumer, or NULL if none is required.
+    ///
+    /// @param[in] target
+    ///     The target, which contains the persistent variable store and the
+    ///     AST importer.
+    //----------------------------------------------------------------------
+    ASTResultSynthesizer(clang::ASTConsumer *passthrough,
+                         Target &target);
+    
+    //----------------------------------------------------------------------
+    /// Destructor
+    //----------------------------------------------------------------------
+    ~ASTResultSynthesizer() override;
+    
+    //----------------------------------------------------------------------
+    /// Link this consumer with a particular AST context
+    ///
+    /// @param[in] Context
+    ///     This AST context will be used for types and identifiers, and also
+    ///     forwarded to the passthrough consumer, if one exists.
+    //----------------------------------------------------------------------
+    void Initialize(clang::ASTContext &Context) override;
+    
+    //----------------------------------------------------------------------
+    /// Examine a list of Decls to find the function $__lldb_expr and 
+    /// transform its code
+    ///
+    /// @param[in] D
+    ///     The list of Decls to search.  These may contain LinkageSpecDecls,
+    ///     which need to be searched recursively.  That job falls to
+    ///     TransformTopLevelDecl.
+    //----------------------------------------------------------------------
+    bool HandleTopLevelDecl(clang::DeclGroupRef D) override;
+    
+    //----------------------------------------------------------------------
+    /// Passthrough stub
+    //----------------------------------------------------------------------
+    void HandleTranslationUnit(clang::ASTContext &Ctx) override;
+    
+    //----------------------------------------------------------------------
+    /// Passthrough stub
+    //----------------------------------------------------------------------
+    void HandleTagDeclDefinition(clang::TagDecl *D) override;
+    
+    //----------------------------------------------------------------------
+    /// Passthrough stub
+    //----------------------------------------------------------------------
+    void CompleteTentativeDefinition(clang::VarDecl *D) override;
+    
+    //----------------------------------------------------------------------
+    /// Passthrough stub
+    //----------------------------------------------------------------------
+    void HandleVTable(clang::CXXRecordDecl *RD) override;
+    
+    //----------------------------------------------------------------------
+    /// Passthrough stub
+    //----------------------------------------------------------------------
+    void PrintStats() override;
+    
+    //----------------------------------------------------------------------
+    /// Set the Sema object to use when performing transforms, and pass it on
+    ///
+    /// @param[in] S
+    ///     The Sema to use.  Because Sema isn't externally visible, this class
+    ///     casts it to an Action for actual use.
+    //----------------------------------------------------------------------
+    void InitializeSema(clang::Sema &S) override;
+    
+    //----------------------------------------------------------------------
+    /// Reset the Sema to NULL now that transformations are done
+    //----------------------------------------------------------------------
+    void ForgetSema() override;
+
+private:
+    //----------------------------------------------------------------------
+    /// Hunt the given Decl for FunctionDecls named $__lldb_expr, recursing
+    /// as necessary through LinkageSpecDecls, and calling SynthesizeResult on
+    /// anything that was found
+    ///
+    /// @param[in] D
+    ///     The Decl to hunt.
+    //----------------------------------------------------------------------
+    void TransformTopLevelDecl(clang::Decl *D);
+    
+    //----------------------------------------------------------------------
+    /// Process an Objective-C method and produce the result variable and
+    /// initialization
+    ///
+    /// @param[in] MethodDecl
+    ///     The method to process.
+    //----------------------------------------------------------------------
+    bool SynthesizeObjCMethodResult(clang::ObjCMethodDecl *MethodDecl);
+    
+    //----------------------------------------------------------------------
+    /// Process a function and produce the result variable and initialization
+    ///
+    /// @param[in] FunDecl
+    ///     The function to process.
+    //----------------------------------------------------------------------
+    bool SynthesizeFunctionResult(clang::FunctionDecl *FunDecl);
+    
+    //----------------------------------------------------------------------
+    /// Process a function body and produce the result variable and 
+    /// initialization
+    ///
+    /// @param[in] Body
+    ///     The body of the function.
+    ///
+    /// @param[in] DC
+    ///     The DeclContext of the function, into which the result variable
+    ///     is inserted.
+    //----------------------------------------------------------------------
+    bool SynthesizeBodyResult(clang::CompoundStmt *Body,
+                              clang::DeclContext *DC);
+    
+    //----------------------------------------------------------------------
+    /// Given a DeclContext for a function or method, find all types
+    /// declared in the context and record any persistent types found.
+    ///
+    /// @param[in] FunDeclCtx
+    ///     The context for the function to process.
+    //----------------------------------------------------------------------
+    void RecordPersistentTypes(clang::DeclContext *FunDeclCtx);
+    
+    //----------------------------------------------------------------------
+    /// Given a TypeDecl, if it declares a type whose name starts with a
+    /// dollar sign, register it as a pointer type in the target's scratch
+    /// AST context.
+    ///
+    /// @param[in] Body
+    ///     The body of the function.
+    //----------------------------------------------------------------------
+    void MaybeRecordPersistentType(clang::TypeDecl *D);
+    
+    clang::ASTContext *m_ast_context;           ///< The AST context to use for identifiers and types.
+    clang::ASTConsumer *m_passthrough;          ///< The ASTConsumer down the chain, for passthrough.  NULL if it's a SemaConsumer.
+    clang::SemaConsumer *m_passthrough_sema;    ///< The SemaConsumer down the chain, for passthrough.  NULL if it's an ASTConsumer.
+    Target &m_target;                           ///< The target, which contains the persistent variable store and the
+    clang::Sema *m_sema;                        ///< The Sema to use.
+};
+
+} // namespace lldb_private
+
+#endif // liblldb_ASTResultSynthesizer_h_
diff --git a/source/Plugins/ExpressionParser/Clang/ASTStructExtractor.cpp b/source/Plugins/ExpressionParser/Clang/ASTStructExtractor.cpp
new file mode 100644
index 0000000000000..38a2b6b33a8ab
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ASTStructExtractor.cpp
@@ -0,0 +1,221 @@
+//===-- ASTStructExtractor.cpp ----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ASTStructExtractor.h"
+
+#include "stdlib.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/Decl.h"
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclGroup.h"
+#include "clang/AST/Expr.h"
+#include "clang/AST/RecordLayout.h"
+#include "clang/AST/Stmt.h"
+#include "clang/Parse/Parser.h"
+#include "clang/Sema/Sema.h"
+#include "llvm/Support/Casting.h"
+#include "llvm/Support/raw_ostream.h"
+#include "lldb/Core/Log.h"
+
+using namespace llvm;
+using namespace clang;
+using namespace lldb_private;
+
+ASTStructExtractor::ASTStructExtractor(ASTConsumer *passthrough,
+                                       const char *struct_name,
+                                       ClangFunctionCaller &function) :
+    m_ast_context (NULL),
+    m_passthrough (passthrough),
+    m_passthrough_sema (NULL),
+    m_sema (NULL),
+    m_action (NULL),
+    m_function (function),
+    m_struct_name (struct_name)
+{
+    if (!m_passthrough)
+        return;
+
+    m_passthrough_sema = dyn_cast<SemaConsumer>(passthrough);
+}
+
+ASTStructExtractor::~ASTStructExtractor()
+{
+}
+
+void
+ASTStructExtractor::Initialize(ASTContext &Context)
+{
+    m_ast_context = &Context;
+
+    if (m_passthrough)
+        m_passthrough->Initialize(Context);
+}
+
+void
+ASTStructExtractor::ExtractFromFunctionDecl(FunctionDecl *F)
+{
+    if (!F->hasBody())
+        return;
+
+    Stmt *body_stmt = F->getBody();
+    CompoundStmt *body_compound_stmt = dyn_cast<CompoundStmt>(body_stmt);
+
+    if (!body_compound_stmt)
+        return; // do we have to handle this?
+
+    RecordDecl *struct_decl = NULL;
+
+    StringRef desired_name(m_struct_name.c_str());
+
+    for (CompoundStmt::const_body_iterator bi = body_compound_stmt->body_begin(), be = body_compound_stmt->body_end();
+         bi != be;
+         ++bi)
+    {
+        Stmt *curr_stmt = *bi;
+        DeclStmt *curr_decl_stmt = dyn_cast<DeclStmt>(curr_stmt);
+        if (!curr_decl_stmt)
+            continue;
+        DeclGroupRef decl_group = curr_decl_stmt->getDeclGroup();
+        for (Decl *candidate_decl : decl_group)
+        {
+            RecordDecl *candidate_record_decl = dyn_cast<RecordDecl>(candidate_decl);
+            if (!candidate_record_decl)
+                continue;
+            if (candidate_record_decl->getName() == desired_name)
+            {
+                struct_decl = candidate_record_decl;
+                break;
+            }
+        }
+        if (struct_decl)
+            break;
+    }
+
+    if (!struct_decl)
+        return;
+
+    const ASTRecordLayout* struct_layout(&m_ast_context->getASTRecordLayout (struct_decl));
+
+    if (!struct_layout)
+        return;
+
+    m_function.m_struct_size = struct_layout->getSize().getQuantity(); // TODO Store m_struct_size as CharUnits
+    m_function.m_return_offset = struct_layout->getFieldOffset(struct_layout->getFieldCount() - 1) / 8;
+    m_function.m_return_size = struct_layout->getDataSize().getQuantity() - m_function.m_return_offset;
+
+    for (unsigned field_index = 0, num_fields = struct_layout->getFieldCount();
+         field_index < num_fields;
+         ++field_index)
+    {
+        m_function.m_member_offsets.push_back(struct_layout->getFieldOffset(field_index) / 8);
+    }
+
+    m_function.m_struct_valid = true;
+}
+
+void
+ASTStructExtractor::ExtractFromTopLevelDecl(Decl* D)
+{
+    LinkageSpecDecl *linkage_spec_decl = dyn_cast<LinkageSpecDecl>(D);
+
+    if (linkage_spec_decl)
+    {
+        RecordDecl::decl_iterator decl_iterator;
+
+        for (decl_iterator = linkage_spec_decl->decls_begin();
+             decl_iterator != linkage_spec_decl->decls_end();
+             ++decl_iterator)
+        {
+            ExtractFromTopLevelDecl(*decl_iterator);
+        }
+    }
+
+    FunctionDecl *function_decl = dyn_cast<FunctionDecl>(D);
+
+    if (m_ast_context &&
+        function_decl &&
+        !m_function.m_wrapper_function_name.compare(function_decl->getNameAsString().c_str()))
+    {
+        ExtractFromFunctionDecl(function_decl);
+    }
+}
+
+bool
+ASTStructExtractor::HandleTopLevelDecl(DeclGroupRef D)
+{
+    DeclGroupRef::iterator decl_iterator;
+
+    for (decl_iterator = D.begin();
+         decl_iterator != D.end();
+         ++decl_iterator)
+    {
+        Decl *decl = *decl_iterator;
+
+        ExtractFromTopLevelDecl(decl);
+    }
+
+    if (m_passthrough)
+        return m_passthrough->HandleTopLevelDecl(D);
+    return true;
+}
+
+void
+ASTStructExtractor::HandleTranslationUnit(ASTContext &Ctx)
+{
+    if (m_passthrough)
+        m_passthrough->HandleTranslationUnit(Ctx);
+}
+
+void
+ASTStructExtractor::HandleTagDeclDefinition(TagDecl *D)
+{
+    if (m_passthrough)
+        m_passthrough->HandleTagDeclDefinition(D);
+}
+
+void
+ASTStructExtractor::CompleteTentativeDefinition(VarDecl *D)
+{
+    if (m_passthrough)
+        m_passthrough->CompleteTentativeDefinition(D);
+}
+
+void
+ASTStructExtractor::HandleVTable(CXXRecordDecl *RD)
+{
+    if (m_passthrough)
+        m_passthrough->HandleVTable(RD);
+}
+
+void
+ASTStructExtractor::PrintStats()
+{
+    if (m_passthrough)
+        m_passthrough->PrintStats();
+}
+
+void
+ASTStructExtractor::InitializeSema(Sema &S)
+{
+    m_sema = &S;
+    m_action = reinterpret_cast<Action*>(m_sema);
+
+    if (m_passthrough_sema)
+        m_passthrough_sema->InitializeSema(S);
+}
+
+void
+ASTStructExtractor::ForgetSema()
+{
+    m_sema = NULL;
+    m_action = NULL;
+
+    if (m_passthrough_sema)
+        m_passthrough_sema->ForgetSema();
+}
diff --git a/source/Plugins/ExpressionParser/Clang/ASTStructExtractor.h b/source/Plugins/ExpressionParser/Clang/ASTStructExtractor.h
new file mode 100644
index 0000000000000..2152cff911ff4
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ASTStructExtractor.h
@@ -0,0 +1,158 @@
+//===-- ASTStructExtractor.h ------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ASTStructExtractor_h_
+#define liblldb_ASTStructExtractor_h_
+
+#include "ClangExpressionVariable.h"
+#include "ClangFunctionCaller.h"
+
+#include "clang/Sema/SemaConsumer.h"
+#include "lldb/Core/ClangForward.h"
+
+namespace lldb_private {
+    
+//----------------------------------------------------------------------
+/// @class ASTStructExtractor ASTStructExtractor.h "lldb/Expression/ASTStructExtractor.h"
+/// @brief Extracts and describes the argument structure for a wrapped function.
+///
+/// This pass integrates with ClangFunctionCaller, which calls functions with custom
+/// sets of arguments.  To avoid having to implement the full calling convention
+/// for the target's architecture, ClangFunctionCaller writes a simple wrapper
+/// function that takes a pointer to an argument structure that contains room
+/// for the address of the function to be called, the values of all its
+/// arguments, and room for the function's return value.
+///
+/// The definition of this struct is itself in the body of the wrapper function,
+/// so Clang does the structure layout itself.  ASTStructExtractor reads through
+/// the AST for the wrapper function and finds the struct.
+//----------------------------------------------------------------------
+class ASTStructExtractor : public clang::SemaConsumer
+{
+public:
+    //----------------------------------------------------------------------
+    /// Constructor
+    ///
+    /// @param[in] passthrough
+    ///     Since the ASTs must typically go through to the Clang code generator
+    ///     in order to produce LLVM IR, this SemaConsumer must allow them to
+    ///     pass to the next step in the chain after processing.  Passthrough is
+    ///     the next ASTConsumer, or NULL if none is required.
+    ///
+    /// @param[in] struct_name
+    ///     The name of the structure to extract from the wrapper function.
+    ///
+    /// @param[in] function
+    ///     The caller object whose members should be populated with information
+    ///     about the argument struct.  ClangFunctionCaller friends ASTStructExtractor
+    ///     for this purpose.
+    //----------------------------------------------------------------------
+    ASTStructExtractor(clang::ASTConsumer *passthrough,
+                       const char *struct_name,
+                       ClangFunctionCaller &function);
+    
+    //----------------------------------------------------------------------
+    /// Destructor
+    //----------------------------------------------------------------------
+    ~ASTStructExtractor() override;
+    
+    //----------------------------------------------------------------------
+    /// Link this consumer with a particular AST context
+    ///
+    /// @param[in] Context
+    ///     This AST context will be used for types and identifiers, and also
+    ///     forwarded to the passthrough consumer, if one exists.
+    //----------------------------------------------------------------------
+    void Initialize(clang::ASTContext &Context) override;
+    
+    //----------------------------------------------------------------------
+    /// Examine a list of Decls to find the function $__lldb_expr and 
+    /// transform its code
+    ///
+    /// @param[in] D
+    ///     The list of Decls to search.  These may contain LinkageSpecDecls,
+    ///     which need to be searched recursively.  That job falls to
+    ///     TransformTopLevelDecl.
+    //----------------------------------------------------------------------
+    bool HandleTopLevelDecl(clang::DeclGroupRef D) override;
+    
+    //----------------------------------------------------------------------
+    /// Passthrough stub
+    //----------------------------------------------------------------------
+    void HandleTranslationUnit(clang::ASTContext &Ctx) override;
+    
+    //----------------------------------------------------------------------
+    /// Passthrough stub
+    //----------------------------------------------------------------------
+    void HandleTagDeclDefinition(clang::TagDecl *D) override;
+    
+    //----------------------------------------------------------------------
+    /// Passthrough stub
+    //----------------------------------------------------------------------
+    void CompleteTentativeDefinition(clang::VarDecl *D) override;
+    
+    //----------------------------------------------------------------------
+    /// Passthrough stub
+    //----------------------------------------------------------------------
+    void HandleVTable(clang::CXXRecordDecl *RD) override;
+    
+    //----------------------------------------------------------------------
+    /// Passthrough stub
+    //----------------------------------------------------------------------
+    void PrintStats() override;
+    
+    //----------------------------------------------------------------------
+    /// Set the Sema object to use when performing transforms, and pass it on
+    ///
+    /// @param[in] S
+    ///     The Sema to use.  Because Sema isn't externally visible, this class
+    ///     casts it to an Action for actual use.
+    //----------------------------------------------------------------------
+    void InitializeSema(clang::Sema &S) override;
+    
+    //----------------------------------------------------------------------
+    /// Reset the Sema to NULL now that transformations are done
+    //----------------------------------------------------------------------
+    void ForgetSema() override;
+
+private:
+    //----------------------------------------------------------------------
+    /// Hunt the given FunctionDecl for the argument struct and place
+    /// information about it into m_function
+    ///
+    /// @param[in] F
+    ///     The FunctionDecl to hunt.
+    //----------------------------------------------------------------------
+    void
+    ExtractFromFunctionDecl(clang::FunctionDecl* F);
+    
+    //----------------------------------------------------------------------
+    /// Hunt the given Decl for FunctionDecls named the same as the wrapper
+    /// function name, recursing as necessary through LinkageSpecDecls, and 
+    /// calling ExtractFromFunctionDecl on anything that was found
+    ///
+    /// @param[in] D
+    ///     The Decl to hunt.
+    //----------------------------------------------------------------------
+    void
+    ExtractFromTopLevelDecl(clang::Decl* D);
+    
+    clang::ASTContext              *m_ast_context;          ///< The AST context to use for identifiers and types.
+    clang::ASTConsumer             *m_passthrough;          ///< The ASTConsumer down the chain, for passthrough.  NULL if it's a SemaConsumer.
+    clang::SemaConsumer            *m_passthrough_sema;     ///< The SemaConsumer down the chain, for passthrough.  NULL if it's an ASTConsumer.
+    clang::Sema                    *m_sema;                 ///< The Sema to use.
+    clang::Action                  *m_action;               ///< The Sema to use, cast to an Action so it's usable.
+    
+    ClangFunctionCaller            &m_function;             ///< The function to populate with information about the argument structure.
+    std::string                     m_struct_name;          ///< The name of the structure to extract.
+};
+    
+} // namespace lldb_private
+
+#endif // liblldb_ASTStructExtractor_h_
diff --git a/source/Plugins/ExpressionParser/Clang/ClangASTSource.cpp b/source/Plugins/ExpressionParser/Clang/ClangASTSource.cpp
new file mode 100644
index 0000000000000..d2ea4390560a5
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangASTSource.cpp
@@ -0,0 +1,2101 @@
+//===-- ClangASTSource.cpp ---------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ClangASTSource.h"
+
+#include "ASTDumper.h"
+#include "ClangModulesDeclVendor.h"
+
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/RecordLayout.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/ModuleList.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Symbol/CompilerDeclContext.h"
+#include "lldb/Symbol/Function.h"
+#include "lldb/Symbol/SymbolVendor.h"
+#include "lldb/Symbol/TaggedASTType.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "lldb/Target/Target.h"
+
+#include <vector>
+
+using namespace clang;
+using namespace lldb_private;
+
+//------------------------------------------------------------------
+// Scoped class that will remove an active lexical decl from the set
+// when it goes out of scope.
+//------------------------------------------------------------------
+namespace {
+    class ScopedLexicalDeclEraser
+    {
+    public:
+        ScopedLexicalDeclEraser(std::set<const clang::Decl *> &decls,
+                                const clang::Decl *decl)
+            : m_active_lexical_decls(decls), m_decl(decl)
+        {
+        }
+
+        ~ScopedLexicalDeclEraser()
+        {
+            m_active_lexical_decls.erase(m_decl);
+        }
+
+    private:
+        std::set<const clang::Decl *> &m_active_lexical_decls;
+        const clang::Decl *m_decl;
+    };
+}
+
+ClangASTSource::~ClangASTSource()
+{
+    m_ast_importer_sp->ForgetDestination(m_ast_context);
+
+    // We are in the process of destruction, don't create clang ast context on demand
+    // by passing false to Target::GetScratchClangASTContext(create_on_demand).
+    ClangASTContext *scratch_clang_ast_context = m_target->GetScratchClangASTContext(false);
+
+    if (!scratch_clang_ast_context)
+        return;
+
+    clang::ASTContext *scratch_ast_context = scratch_clang_ast_context->getASTContext();
+
+    if (!scratch_ast_context)
+        return;
+
+    if (m_ast_context != scratch_ast_context)
+        m_ast_importer_sp->ForgetSource(scratch_ast_context, m_ast_context);
+}
+
+void
+ClangASTSource::StartTranslationUnit(ASTConsumer *Consumer)
+{
+    if (!m_ast_context)
+        return;
+
+    m_ast_context->getTranslationUnitDecl()->setHasExternalVisibleStorage();
+    m_ast_context->getTranslationUnitDecl()->setHasExternalLexicalStorage();
+}
+
+// The core lookup interface.
+bool
+ClangASTSource::FindExternalVisibleDeclsByName
+(
+    const DeclContext *decl_ctx,
+    DeclarationName clang_decl_name
+)
+{
+    if (!m_ast_context)
+    {
+        SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+        return false;
+    }
+
+    if (GetImportInProgress())
+    {
+        SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+        return false;
+    }
+
+    std::string decl_name (clang_decl_name.getAsString());
+
+//    if (m_decl_map.DoingASTImport ())
+//      return DeclContext::lookup_result();
+//
+    switch (clang_decl_name.getNameKind()) {
+    // Normal identifiers.
+    case DeclarationName::Identifier:
+        {
+            clang::IdentifierInfo *identifier_info = clang_decl_name.getAsIdentifierInfo();
+
+            if (!identifier_info ||
+                identifier_info->getBuiltinID() != 0)
+            {
+                SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+                return false;
+            }
+        }
+        break;
+
+    // Operator names.
+    case DeclarationName::CXXOperatorName:
+    case DeclarationName::CXXLiteralOperatorName:
+        break;
+
+    // Using directives found in this context.
+    // Tell Sema we didn't find any or we'll end up getting asked a *lot*.
+    case DeclarationName::CXXUsingDirective:
+      SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+      return false;
+
+    case DeclarationName::ObjCZeroArgSelector:
+    case DeclarationName::ObjCOneArgSelector:
+    case DeclarationName::ObjCMultiArgSelector:
+    {
+      llvm::SmallVector<NamedDecl*, 1> method_decls;
+
+      NameSearchContext method_search_context (*this, method_decls, clang_decl_name, decl_ctx);
+
+      FindObjCMethodDecls(method_search_context);
+
+      SetExternalVisibleDeclsForName (decl_ctx, clang_decl_name, method_decls);
+      return (method_decls.size() > 0);
+    }
+    // These aren't possible in the global context.
+    case DeclarationName::CXXConstructorName:
+    case DeclarationName::CXXDestructorName:
+    case DeclarationName::CXXConversionFunctionName:
+      SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+      return false;
+    }
+
+
+    if (!GetLookupsEnabled())
+    {
+        // Wait until we see a '$' at the start of a name before we start doing
+        // any lookups so we can avoid lookup up all of the builtin types.
+        if (!decl_name.empty() && decl_name[0] == '$')
+        {
+            SetLookupsEnabled (true);
+        }
+        else
+        {
+            SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+            return false;
+        }
+    }
+
+    ConstString const_decl_name(decl_name.c_str());
+
+    const char *uniqued_const_decl_name = const_decl_name.GetCString();
+    if (m_active_lookups.find (uniqued_const_decl_name) != m_active_lookups.end())
+    {
+        // We are currently looking up this name...
+        SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+        return false;
+    }
+    m_active_lookups.insert(uniqued_const_decl_name);
+//  static uint32_t g_depth = 0;
+//  ++g_depth;
+//  printf("[%5u] FindExternalVisibleDeclsByName() \"%s\"\n", g_depth, uniqued_const_decl_name);
+    llvm::SmallVector<NamedDecl*, 4> name_decls;
+    NameSearchContext name_search_context(*this, name_decls, clang_decl_name, decl_ctx);
+    FindExternalVisibleDecls(name_search_context);
+    SetExternalVisibleDeclsForName (decl_ctx, clang_decl_name, name_decls);
+//  --g_depth;
+    m_active_lookups.erase (uniqued_const_decl_name);
+    return (name_decls.size() != 0);
+}
+
+void
+ClangASTSource::CompleteType (TagDecl *tag_decl)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    static unsigned int invocation_id = 0;
+    unsigned int current_id = invocation_id++;
+
+    if (log)
+    {
+        log->Printf("    CompleteTagDecl[%u] on (ASTContext*)%p Completing (TagDecl*)%p named %s",
+                    current_id, static_cast<void*>(m_ast_context),
+                    static_cast<void*>(tag_decl),
+                    tag_decl->getName().str().c_str());
+
+        log->Printf("      CTD[%u] Before:", current_id);
+        ASTDumper dumper((Decl*)tag_decl);
+        dumper.ToLog(log, "      [CTD] ");
+    }
+
+    auto iter = m_active_lexical_decls.find(tag_decl);
+    if (iter != m_active_lexical_decls.end())
+        return;
+    m_active_lexical_decls.insert(tag_decl);
+    ScopedLexicalDeclEraser eraser(m_active_lexical_decls, tag_decl);
+
+    if (!m_ast_importer_sp->CompleteTagDecl (tag_decl))
+    {
+        // We couldn't complete the type.  Maybe there's a definition
+        // somewhere else that can be completed.
+
+        if (log)
+            log->Printf("      CTD[%u] Type could not be completed in the module in which it was first found.", current_id);
+
+        bool found = false;
+
+        DeclContext *decl_ctx = tag_decl->getDeclContext();
+
+        if (const NamespaceDecl *namespace_context = dyn_cast<NamespaceDecl>(decl_ctx))
+        {
+            ClangASTImporter::NamespaceMapSP namespace_map = m_ast_importer_sp->GetNamespaceMap(namespace_context);
+
+            if (log && log->GetVerbose())
+                log->Printf("      CTD[%u] Inspecting namespace map %p (%d entries)",
+                            current_id, static_cast<void*>(namespace_map.get()),
+                            static_cast<int>(namespace_map->size()));
+
+            if (!namespace_map)
+                return;
+
+            for (ClangASTImporter::NamespaceMap::iterator i = namespace_map->begin(), e = namespace_map->end();
+                 i != e && !found;
+                 ++i)
+            {
+                if (log)
+                    log->Printf("      CTD[%u] Searching namespace %s in module %s",
+                                current_id,
+                                i->second.GetName().AsCString(),
+                                i->first->GetFileSpec().GetFilename().GetCString());
+
+                TypeList types;
+
+                SymbolContext null_sc;
+                ConstString name(tag_decl->getName().str().c_str());
+
+                i->first->FindTypesInNamespace(null_sc, name, &i->second, UINT32_MAX, types);
+
+                for (uint32_t ti = 0, te = types.GetSize();
+                     ti != te && !found;
+                     ++ti)
+                {
+                    lldb::TypeSP type = types.GetTypeAtIndex(ti);
+
+                    if (!type)
+                        continue;
+
+                    CompilerType clang_type (type->GetFullCompilerType ());
+
+                    if (!clang_type)
+                        continue;
+
+                    const TagType *tag_type = ClangASTContext::GetQualType(clang_type)->getAs<TagType>();
+
+                    if (!tag_type)
+                        continue;
+
+                    TagDecl *candidate_tag_decl = const_cast<TagDecl*>(tag_type->getDecl());
+
+                    if (m_ast_importer_sp->CompleteTagDeclWithOrigin (tag_decl, candidate_tag_decl))
+                        found = true;
+                }
+            }
+        }
+        else
+        {
+            TypeList types;
+
+            SymbolContext null_sc;
+            ConstString name(tag_decl->getName().str().c_str());
+            CompilerDeclContext namespace_decl;
+
+            const ModuleList &module_list = m_target->GetImages();
+
+            bool exact_match = false;
+            module_list.FindTypes (null_sc, name, exact_match, UINT32_MAX, types);
+
+            for (uint32_t ti = 0, te = types.GetSize();
+                 ti != te && !found;
+                 ++ti)
+            {
+                lldb::TypeSP type = types.GetTypeAtIndex(ti);
+
+                if (!type)
+                    continue;
+
+                CompilerType clang_type (type->GetFullCompilerType ());
+
+                if (!clang_type)
+                    continue;
+
+                const TagType *tag_type = ClangASTContext::GetQualType(clang_type)->getAs<TagType>();
+
+                if (!tag_type)
+                    continue;
+
+                TagDecl *candidate_tag_decl = const_cast<TagDecl*>(tag_type->getDecl());
+
+                // We have found a type by basename and we need to make sure the decl contexts
+                // are the same before we can try to complete this type with another
+                if (!ClangASTContext::DeclsAreEquivalent (tag_decl, candidate_tag_decl))
+                    continue;
+
+                if (m_ast_importer_sp->CompleteTagDeclWithOrigin (tag_decl, candidate_tag_decl))
+                    found = true;
+            }
+        }
+    }
+
+    if (log)
+    {
+        log->Printf("      [CTD] After:");
+        ASTDumper dumper((Decl*)tag_decl);
+        dumper.ToLog(log, "      [CTD] ");
+    }
+}
+
+void
+ClangASTSource::CompleteType (clang::ObjCInterfaceDecl *interface_decl)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (log)
+    {
+        log->Printf("    [CompleteObjCInterfaceDecl] on (ASTContext*)%p Completing an ObjCInterfaceDecl named %s",
+                    static_cast<void*>(m_ast_context),
+                    interface_decl->getName().str().c_str());
+        log->Printf("      [COID] Before:");
+        ASTDumper dumper((Decl*)interface_decl);
+        dumper.ToLog(log, "      [COID] ");
+    }
+
+    Decl *original_decl = NULL;
+    ASTContext *original_ctx = NULL;
+
+    if (m_ast_importer_sp->ResolveDeclOrigin(interface_decl, &original_decl, &original_ctx))
+    {
+        if (ObjCInterfaceDecl *original_iface_decl = dyn_cast<ObjCInterfaceDecl>(original_decl))
+        {
+            ObjCInterfaceDecl *complete_iface_decl = GetCompleteObjCInterface(original_iface_decl);
+
+            if (complete_iface_decl && (complete_iface_decl != original_iface_decl))
+            {
+                m_ast_importer_sp->SetDeclOrigin(interface_decl, original_iface_decl);
+            }
+        }
+    }
+
+    m_ast_importer_sp->CompleteObjCInterfaceDecl (interface_decl);
+
+    if (interface_decl->getSuperClass() &&
+        interface_decl->getSuperClass() != interface_decl)
+        CompleteType(interface_decl->getSuperClass());
+
+    if (log)
+    {
+        log->Printf("      [COID] After:");
+        ASTDumper dumper((Decl*)interface_decl);
+        dumper.ToLog(log, "      [COID] ");
+    }
+}
+
+clang::ObjCInterfaceDecl *
+ClangASTSource::GetCompleteObjCInterface (clang::ObjCInterfaceDecl *interface_decl)
+{
+    lldb::ProcessSP process(m_target->GetProcessSP());
+
+    if (!process)
+        return NULL;
+
+    ObjCLanguageRuntime *language_runtime(process->GetObjCLanguageRuntime());
+
+    if (!language_runtime)
+        return NULL;
+
+    ConstString class_name(interface_decl->getNameAsString().c_str());
+
+    lldb::TypeSP complete_type_sp(language_runtime->LookupInCompleteClassCache(class_name));
+
+    if (!complete_type_sp)
+        return NULL;
+
+    TypeFromUser complete_type = TypeFromUser(complete_type_sp->GetFullCompilerType ());
+    lldb::opaque_compiler_type_t complete_opaque_type = complete_type.GetOpaqueQualType();
+
+    if (!complete_opaque_type)
+        return NULL;
+
+    const clang::Type *complete_clang_type = QualType::getFromOpaquePtr(complete_opaque_type).getTypePtr();
+    const ObjCInterfaceType *complete_interface_type = dyn_cast<ObjCInterfaceType>(complete_clang_type);
+
+    if (!complete_interface_type)
+        return NULL;
+
+    ObjCInterfaceDecl *complete_iface_decl(complete_interface_type->getDecl());
+
+    return complete_iface_decl;
+}
+
+void
+ClangASTSource::FindExternalLexicalDecls (const DeclContext *decl_context,
+                                          llvm::function_ref<bool(Decl::Kind)> predicate,
+                                          llvm::SmallVectorImpl<Decl*> &decls)
+{
+    ClangASTMetrics::RegisterLexicalQuery();
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    const Decl *context_decl = dyn_cast<Decl>(decl_context);
+
+    if (!context_decl)
+        return;
+
+    auto iter = m_active_lexical_decls.find(context_decl);
+    if (iter != m_active_lexical_decls.end())
+        return;
+    m_active_lexical_decls.insert(context_decl);
+    ScopedLexicalDeclEraser eraser(m_active_lexical_decls, context_decl);
+
+    static unsigned int invocation_id = 0;
+    unsigned int current_id = invocation_id++;
+
+    if (log)
+    {
+        if (const NamedDecl *context_named_decl = dyn_cast<NamedDecl>(context_decl))
+            log->Printf("FindExternalLexicalDecls[%u] on (ASTContext*)%p in '%s' (%sDecl*)%p",
+                        current_id, static_cast<void*>(m_ast_context),
+                        context_named_decl->getNameAsString().c_str(),
+                        context_decl->getDeclKindName(),
+                        static_cast<const void*>(context_decl));
+        else if(context_decl)
+            log->Printf("FindExternalLexicalDecls[%u] on (ASTContext*)%p in (%sDecl*)%p",
+                        current_id, static_cast<void*>(m_ast_context),
+                        context_decl->getDeclKindName(),
+                        static_cast<const void*>(context_decl));
+        else
+            log->Printf("FindExternalLexicalDecls[%u] on (ASTContext*)%p in a NULL context",
+                        current_id, static_cast<const void*>(m_ast_context));
+    }
+
+    Decl *original_decl = NULL;
+    ASTContext *original_ctx = NULL;
+
+    if (!m_ast_importer_sp->ResolveDeclOrigin(context_decl, &original_decl, &original_ctx))
+        return;
+
+    if (log)
+    {
+        log->Printf("  FELD[%u] Original decl (ASTContext*)%p (Decl*)%p:",
+                    current_id, static_cast<void*>(original_ctx),
+                    static_cast<void*>(original_decl));
+        ASTDumper(original_decl).ToLog(log, "    ");
+    }
+
+    if (ObjCInterfaceDecl *original_iface_decl = dyn_cast<ObjCInterfaceDecl>(original_decl))
+    {
+        ObjCInterfaceDecl *complete_iface_decl = GetCompleteObjCInterface(original_iface_decl);
+
+        if (complete_iface_decl && (complete_iface_decl != original_iface_decl))
+        {
+            original_decl = complete_iface_decl;
+            original_ctx = &complete_iface_decl->getASTContext();
+
+            m_ast_importer_sp->SetDeclOrigin(context_decl, original_iface_decl);
+        }
+    }
+
+    if (TagDecl *original_tag_decl = dyn_cast<TagDecl>(original_decl))
+    {
+        ExternalASTSource *external_source = original_ctx->getExternalSource();
+
+        if (external_source)
+            external_source->CompleteType (original_tag_decl);
+    }
+
+    const DeclContext *original_decl_context = dyn_cast<DeclContext>(original_decl);
+
+    if (!original_decl_context)
+        return;
+
+    for (TagDecl::decl_iterator iter = original_decl_context->decls_begin();
+         iter != original_decl_context->decls_end();
+         ++iter)
+    {
+        Decl *decl = *iter;
+
+        if (predicate(decl->getKind()))
+        {
+            if (log)
+            {
+                ASTDumper ast_dumper(decl);
+                if (const NamedDecl *context_named_decl = dyn_cast<NamedDecl>(context_decl))
+                    log->Printf("  FELD[%d] Adding [to %sDecl %s] lexical %sDecl %s", current_id, context_named_decl->getDeclKindName(), context_named_decl->getNameAsString().c_str(), decl->getDeclKindName(), ast_dumper.GetCString());
+                else
+                    log->Printf("  FELD[%d] Adding lexical %sDecl %s", current_id, decl->getDeclKindName(), ast_dumper.GetCString());
+            }
+            
+            Decl *copied_decl = m_ast_importer_sp->CopyDecl(m_ast_context, original_ctx, decl);
+
+            if (!copied_decl)
+                continue;
+
+            if (FieldDecl *copied_field = dyn_cast<FieldDecl>(copied_decl))
+            {
+                QualType copied_field_type = copied_field->getType();
+
+                m_ast_importer_sp->RequireCompleteType(copied_field_type);
+            }
+
+            DeclContext *decl_context_non_const = const_cast<DeclContext *>(decl_context);
+
+            if (copied_decl->getDeclContext() != decl_context)
+            {
+                if (copied_decl->getDeclContext()->containsDecl(copied_decl))
+                    copied_decl->getDeclContext()->removeDecl(copied_decl);
+                copied_decl->setDeclContext(decl_context_non_const);
+            }
+
+            if (!decl_context_non_const->containsDecl(copied_decl))
+                decl_context_non_const->addDeclInternal(copied_decl);
+        }
+    }
+
+    return;
+}
+
+void
+ClangASTSource::FindExternalVisibleDecls (NameSearchContext &context)
+{
+    assert (m_ast_context);
+
+    ClangASTMetrics::RegisterVisibleQuery();
+
+    const ConstString name(context.m_decl_name.getAsString().c_str());
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    static unsigned int invocation_id = 0;
+    unsigned int current_id = invocation_id++;
+
+    if (log)
+    {
+        if (!context.m_decl_context)
+            log->Printf("ClangASTSource::FindExternalVisibleDecls[%u] on (ASTContext*)%p for '%s' in a NULL DeclContext",
+                        current_id, static_cast<void*>(m_ast_context),
+                        name.GetCString());
+        else if (const NamedDecl *context_named_decl = dyn_cast<NamedDecl>(context.m_decl_context))
+            log->Printf("ClangASTSource::FindExternalVisibleDecls[%u] on (ASTContext*)%p for '%s' in '%s'",
+                        current_id, static_cast<void*>(m_ast_context),
+                        name.GetCString(),
+                        context_named_decl->getNameAsString().c_str());
+        else
+            log->Printf("ClangASTSource::FindExternalVisibleDecls[%u] on (ASTContext*)%p for '%s' in a '%s'",
+                        current_id, static_cast<void*>(m_ast_context),
+                        name.GetCString(),
+                        context.m_decl_context->getDeclKindName());
+    }
+
+    context.m_namespace_map.reset(new ClangASTImporter::NamespaceMap);
+
+    if (const NamespaceDecl *namespace_context = dyn_cast<NamespaceDecl>(context.m_decl_context))
+    {
+        ClangASTImporter::NamespaceMapSP namespace_map = m_ast_importer_sp->GetNamespaceMap(namespace_context);
+
+        if (log && log->GetVerbose())
+            log->Printf("  CAS::FEVD[%u] Inspecting namespace map %p (%d entries)",
+                        current_id, static_cast<void*>(namespace_map.get()),
+                        static_cast<int>(namespace_map->size()));
+
+        if (!namespace_map)
+            return;
+
+        for (ClangASTImporter::NamespaceMap::iterator i = namespace_map->begin(), e = namespace_map->end();
+             i != e;
+             ++i)
+        {
+            if (log)
+                log->Printf("  CAS::FEVD[%u] Searching namespace %s in module %s",
+                            current_id,
+                            i->second.GetName().AsCString(),
+                            i->first->GetFileSpec().GetFilename().GetCString());
+
+            FindExternalVisibleDecls(context,
+                                     i->first,
+                                     i->second,
+                                     current_id);
+        }
+    }
+    else if (isa<ObjCInterfaceDecl>(context.m_decl_context))
+    {
+        FindObjCPropertyAndIvarDecls(context);
+    }
+    else if (!isa<TranslationUnitDecl>(context.m_decl_context))
+    {
+        // we shouldn't be getting FindExternalVisibleDecls calls for these
+        return;
+    }
+    else
+    {
+        CompilerDeclContext namespace_decl;
+
+        if (log)
+            log->Printf("  CAS::FEVD[%u] Searching the root namespace", current_id);
+
+        FindExternalVisibleDecls(context,
+                                 lldb::ModuleSP(),
+                                 namespace_decl,
+                                 current_id);
+    }
+
+    if (!context.m_namespace_map->empty())
+    {
+        if (log && log->GetVerbose())
+            log->Printf("  CAS::FEVD[%u] Registering namespace map %p (%d entries)",
+                        current_id,
+                        static_cast<void*>(context.m_namespace_map.get()),
+                        static_cast<int>(context.m_namespace_map->size()));
+
+        NamespaceDecl *clang_namespace_decl = AddNamespace(context, context.m_namespace_map);
+
+        if (clang_namespace_decl)
+            clang_namespace_decl->setHasExternalVisibleStorage();
+    }
+}
+
+void
+ClangASTSource::FindExternalVisibleDecls (NameSearchContext &context,
+                                          lldb::ModuleSP module_sp,
+                                          CompilerDeclContext &namespace_decl,
+                                          unsigned int current_id)
+{
+    assert (m_ast_context);
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    SymbolContextList sc_list;
+
+    const ConstString name(context.m_decl_name.getAsString().c_str());
+
+    const char *name_unique_cstr = name.GetCString();
+
+    static ConstString id_name("id");
+    static ConstString Class_name("Class");
+
+    if (name == id_name || name == Class_name)
+        return;
+
+    if (name_unique_cstr == NULL)
+        return;
+
+    // The ClangASTSource is not responsible for finding $-names.
+    if (name_unique_cstr[0] == '$')
+        return;
+
+    if (module_sp && namespace_decl)
+    {
+        CompilerDeclContext found_namespace_decl;
+
+        SymbolVendor *symbol_vendor = module_sp->GetSymbolVendor();
+
+        if (symbol_vendor)
+        {
+            SymbolContext null_sc;
+
+            found_namespace_decl = symbol_vendor->FindNamespace(null_sc, name, &namespace_decl);
+
+            if (found_namespace_decl)
+            {
+                context.m_namespace_map->push_back(std::pair<lldb::ModuleSP, CompilerDeclContext>(module_sp, found_namespace_decl));
+
+                if (log)
+                    log->Printf("  CAS::FEVD[%u] Found namespace %s in module %s",
+                                current_id,
+                                name.GetCString(),
+                                module_sp->GetFileSpec().GetFilename().GetCString());
+            }
+        }
+    }
+    else
+    {
+        const ModuleList &target_images = m_target->GetImages();
+        Mutex::Locker modules_locker (target_images.GetMutex());
+
+        for (size_t i = 0, e = target_images.GetSize(); i < e; ++i)
+        {
+            lldb::ModuleSP image = target_images.GetModuleAtIndexUnlocked(i);
+
+            if (!image)
+                continue;
+
+            CompilerDeclContext found_namespace_decl;
+
+            SymbolVendor *symbol_vendor = image->GetSymbolVendor();
+
+            if (!symbol_vendor)
+                continue;
+
+            SymbolContext null_sc;
+
+            found_namespace_decl = symbol_vendor->FindNamespace(null_sc, name, &namespace_decl);
+
+            if (found_namespace_decl)
+            {
+                context.m_namespace_map->push_back(std::pair<lldb::ModuleSP, CompilerDeclContext>(image, found_namespace_decl));
+
+                if (log)
+                    log->Printf("  CAS::FEVD[%u] Found namespace %s in module %s",
+                                current_id,
+                                name.GetCString(),
+                                image->GetFileSpec().GetFilename().GetCString());
+            }
+        }
+    }
+
+    do
+    {
+        TypeList types;
+        SymbolContext null_sc;
+        const bool exact_match = false;
+
+        if (module_sp && namespace_decl)
+            module_sp->FindTypesInNamespace(null_sc, name, &namespace_decl, 1, types);
+        else
+            m_target->GetImages().FindTypes(null_sc, name, exact_match, 1, types);
+
+        bool found_a_type = false;
+        
+        if (size_t num_types = types.GetSize())
+        {
+            for (size_t ti = 0; ti < num_types; ++ti)
+            {
+                lldb::TypeSP type_sp = types.GetTypeAtIndex(ti);
+                
+                if (log)
+                {
+                    const char *name_string = type_sp->GetName().GetCString();
+                    
+                    log->Printf("  CAS::FEVD[%u] Matching type found for \"%s\": %s",
+                                current_id,
+                                name.GetCString(),
+                                (name_string ? name_string : "<anonymous>"));
+                }
+                
+                CompilerType full_type = type_sp->GetFullCompilerType();
+                
+                CompilerType copied_clang_type (GuardedCopyType(full_type));
+                
+                if (!copied_clang_type)
+                {
+                    if (log)
+                        log->Printf("  CAS::FEVD[%u] - Couldn't export a type",
+                                    current_id);
+                    
+                    continue;
+                }
+                
+                context.AddTypeDecl(copied_clang_type);
+                
+                found_a_type = true;
+                break;
+            }
+        }
+
+        if (!found_a_type)
+        {
+            // Try the modules next.
+            
+            do
+            {
+                if (ClangModulesDeclVendor *modules_decl_vendor = m_target->GetClangModulesDeclVendor())
+                {
+                    bool append = false;
+                    uint32_t max_matches = 1;
+                    std::vector <clang::NamedDecl *> decls;
+                    
+                    if (!modules_decl_vendor->FindDecls(name,
+                                                        append,
+                                                        max_matches,
+                                                        decls))
+                        break;
+
+                    if (log)
+                    {
+                        log->Printf("  CAS::FEVD[%u] Matching entity found for \"%s\" in the modules",
+                                    current_id,
+                                    name.GetCString());
+                    }
+                    
+                    clang::NamedDecl *const decl_from_modules = decls[0];
+                    
+                    if (llvm::isa<clang::TypeDecl>(decl_from_modules) ||
+                        llvm::isa<clang::ObjCContainerDecl>(decl_from_modules) ||
+                        llvm::isa<clang::EnumConstantDecl>(decl_from_modules))
+                    {
+                        clang::Decl *copied_decl = m_ast_importer_sp->CopyDecl(m_ast_context, &decl_from_modules->getASTContext(), decl_from_modules);
+                        clang::NamedDecl *copied_named_decl = copied_decl ? dyn_cast<clang::NamedDecl>(copied_decl) : nullptr;
+                        
+                        if (!copied_named_decl)
+                        {
+                            if (log)
+                                log->Printf("  CAS::FEVD[%u] - Couldn't export a type from the modules",
+                                            current_id);
+                            
+                            break;
+                        }
+                        
+                        context.AddNamedDecl(copied_named_decl);
+                        
+                        found_a_type = true;
+                    }
+                }
+            } while (0);
+        }
+        
+        if (!found_a_type)
+        {
+            do
+            {
+                // Couldn't find any types elsewhere.  Try the Objective-C runtime if one exists.
+
+                lldb::ProcessSP process(m_target->GetProcessSP());
+
+                if (!process)
+                    break;
+
+                ObjCLanguageRuntime *language_runtime(process->GetObjCLanguageRuntime());
+
+                if (!language_runtime)
+                    break;
+
+                DeclVendor *decl_vendor = language_runtime->GetDeclVendor();
+
+                if (!decl_vendor)
+                    break;
+
+                bool append = false;
+                uint32_t max_matches = 1;
+                std::vector <clang::NamedDecl *> decls;
+
+                if (!decl_vendor->FindDecls(name,
+                                            append,
+                                            max_matches,
+                                            decls))
+                    break;
+
+                if (log)
+                {
+                    log->Printf("  CAS::FEVD[%u] Matching type found for \"%s\" in the runtime",
+                                current_id,
+                                name.GetCString());
+                }
+                
+                clang::Decl *copied_decl = m_ast_importer_sp->CopyDecl(m_ast_context, &decls[0]->getASTContext(), decls[0]);
+                clang::NamedDecl *copied_named_decl = copied_decl ? dyn_cast<clang::NamedDecl>(copied_decl) : nullptr;
+                
+                if (!copied_named_decl)
+                {
+                    if (log)
+                        log->Printf("  CAS::FEVD[%u] - Couldn't export a type from the runtime",
+                                    current_id);
+
+                    break;
+                }
+
+                context.AddNamedDecl(copied_named_decl);
+            }
+            while(0);
+        }
+
+    } while(0);
+}
+
+template <class D> class TaggedASTDecl {
+public:
+    TaggedASTDecl() : decl(NULL) { }
+    TaggedASTDecl(D *_decl) : decl(_decl) { }
+    bool IsValid() const { return (decl != NULL); }
+    bool IsInvalid() const { return !IsValid(); }
+    D *operator->() const { return decl; }
+    D *decl;
+};
+
+template <class D2, template <class D> class TD, class D1>
+TD<D2>
+DynCast(TD<D1> source)
+{
+    return TD<D2> (dyn_cast<D2>(source.decl));
+}
+
+template <class D = Decl> class DeclFromParser;
+template <class D = Decl> class DeclFromUser;
+
+template <class D> class DeclFromParser : public TaggedASTDecl<D> {
+public:
+    DeclFromParser() : TaggedASTDecl<D>() { }
+    DeclFromParser(D *_decl) : TaggedASTDecl<D>(_decl) { }
+
+    DeclFromUser<D> GetOrigin(ClangASTImporter *importer);
+};
+
+template <class D> class DeclFromUser : public TaggedASTDecl<D> {
+public:
+    DeclFromUser() : TaggedASTDecl<D>() { }
+    DeclFromUser(D *_decl) : TaggedASTDecl<D>(_decl) { }
+
+    DeclFromParser<D> Import(ClangASTImporter *importer, ASTContext &dest_ctx);
+};
+
+template <class D>
+DeclFromUser<D>
+DeclFromParser<D>::GetOrigin(ClangASTImporter *importer)
+{
+    DeclFromUser <> origin_decl;
+    importer->ResolveDeclOrigin(this->decl, &origin_decl.decl, NULL);
+    if (origin_decl.IsInvalid())
+        return DeclFromUser<D>();
+    return DeclFromUser<D>(dyn_cast<D>(origin_decl.decl));
+}
+
+template <class D>
+DeclFromParser<D>
+DeclFromUser<D>::Import(ClangASTImporter *importer, ASTContext &dest_ctx)
+{
+    DeclFromParser <> parser_generic_decl(importer->CopyDecl(&dest_ctx, &this->decl->getASTContext(), this->decl));
+    if (parser_generic_decl.IsInvalid())
+        return DeclFromParser<D>();
+    return DeclFromParser<D>(dyn_cast<D>(parser_generic_decl.decl));
+}
+
+static bool
+FindObjCMethodDeclsWithOrigin (unsigned int current_id,
+                               NameSearchContext &context,
+                               ObjCInterfaceDecl *original_interface_decl,
+                               clang::ASTContext *ast_context,
+                               ClangASTImporter *ast_importer,
+                               const char *log_info)
+{
+    const DeclarationName &decl_name(context.m_decl_name);
+    clang::ASTContext *original_ctx = &original_interface_decl->getASTContext();
+
+    Selector original_selector;
+
+    if (decl_name.isObjCZeroArgSelector())
+    {
+        IdentifierInfo *ident = &original_ctx->Idents.get(decl_name.getAsString());
+        original_selector = original_ctx->Selectors.getSelector(0, &ident);
+    }
+    else if (decl_name.isObjCOneArgSelector())
+    {
+        const std::string &decl_name_string = decl_name.getAsString();
+        std::string decl_name_string_without_colon(decl_name_string.c_str(), decl_name_string.length() - 1);
+        IdentifierInfo *ident = &original_ctx->Idents.get(decl_name_string_without_colon.c_str());
+        original_selector = original_ctx->Selectors.getSelector(1, &ident);
+    }
+    else
+    {
+        SmallVector<IdentifierInfo *, 4> idents;
+
+        clang::Selector sel = decl_name.getObjCSelector();
+
+        unsigned num_args = sel.getNumArgs();
+
+        for (unsigned i = 0;
+             i != num_args;
+             ++i)
+        {
+            idents.push_back(&original_ctx->Idents.get(sel.getNameForSlot(i)));
+        }
+
+        original_selector = original_ctx->Selectors.getSelector(num_args, idents.data());
+    }
+
+    DeclarationName original_decl_name(original_selector);
+    
+    llvm::SmallVector<NamedDecl *, 1> methods;
+    
+    ClangASTContext::GetCompleteDecl(original_ctx, original_interface_decl);
+    
+    if (ObjCMethodDecl *instance_method_decl = original_interface_decl->lookupInstanceMethod(original_selector))
+    {
+        methods.push_back(instance_method_decl);
+    }
+    else if (ObjCMethodDecl *class_method_decl = original_interface_decl->lookupClassMethod(original_selector))
+    {
+        methods.push_back(class_method_decl);
+    }
+    
+    if (methods.empty())
+    {
+        return false;
+    }
+    
+    for (NamedDecl *named_decl : methods)
+    {
+        if (!named_decl)
+            continue;
+        
+        ObjCMethodDecl *result_method = dyn_cast<ObjCMethodDecl>(named_decl);
+
+        if (!result_method)
+            continue;
+
+        Decl *copied_decl = ast_importer->CopyDecl(ast_context, &result_method->getASTContext(), result_method);
+
+        if (!copied_decl)
+            continue;
+
+        ObjCMethodDecl *copied_method_decl = dyn_cast<ObjCMethodDecl>(copied_decl);
+
+        if (!copied_method_decl)
+            continue;
+
+        Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+        if (log)
+        {
+            ASTDumper dumper((Decl*)copied_method_decl);
+            log->Printf("  CAS::FOMD[%d] found (%s) %s", current_id, log_info, dumper.GetCString());
+        }
+
+        context.AddNamedDecl(copied_method_decl);
+    }
+
+    return true;
+}
+
+void
+ClangASTSource::FindObjCMethodDecls (NameSearchContext &context)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    static unsigned int invocation_id = 0;
+    unsigned int current_id = invocation_id++;
+
+    const DeclarationName &decl_name(context.m_decl_name);
+    const DeclContext *decl_ctx(context.m_decl_context);
+
+    const ObjCInterfaceDecl *interface_decl = dyn_cast<ObjCInterfaceDecl>(decl_ctx);
+
+    if (!interface_decl)
+        return;
+
+    do
+    {
+        Decl *original_decl = NULL;
+        ASTContext *original_ctx = NULL;
+
+        m_ast_importer_sp->ResolveDeclOrigin(interface_decl, &original_decl, &original_ctx);
+
+        if (!original_decl)
+            break;
+
+        ObjCInterfaceDecl *original_interface_decl = dyn_cast<ObjCInterfaceDecl>(original_decl);
+
+        if (FindObjCMethodDeclsWithOrigin(current_id,
+                                          context,
+                                          original_interface_decl,
+                                          m_ast_context,
+                                          m_ast_importer_sp.get(),
+                                          "at origin"))
+            return; // found it, no need to look any further
+    } while (0);
+
+    StreamString ss;
+
+    if (decl_name.isObjCZeroArgSelector())
+    {
+        ss.Printf("%s", decl_name.getAsString().c_str());
+    }
+    else if (decl_name.isObjCOneArgSelector())
+    {
+        ss.Printf("%s", decl_name.getAsString().c_str());
+    }
+    else
+    {
+        clang::Selector sel = decl_name.getObjCSelector();
+
+        for (unsigned i = 0, e = sel.getNumArgs();
+             i != e;
+             ++i)
+        {
+            llvm::StringRef r = sel.getNameForSlot(i);
+            ss.Printf("%s:", r.str().c_str());
+        }
+    }
+    ss.Flush();
+
+    if (strstr(ss.GetData(), "$__lldb"))
+        return; // we don't need any results
+
+    ConstString selector_name(ss.GetData());
+
+    if (log)
+        log->Printf("ClangASTSource::FindObjCMethodDecls[%d] on (ASTContext*)%p for selector [%s %s]",
+                    current_id, static_cast<void*>(m_ast_context),
+                    interface_decl->getNameAsString().c_str(),
+                    selector_name.AsCString());
+    SymbolContextList sc_list;
+
+    const bool include_symbols = false;
+    const bool include_inlines = false;
+    const bool append = false;
+
+    std::string interface_name = interface_decl->getNameAsString();
+
+    do
+    {
+        StreamString ms;
+        ms.Printf("-[%s %s]", interface_name.c_str(), selector_name.AsCString());
+        ms.Flush();
+        ConstString instance_method_name(ms.GetData());
+
+        m_target->GetImages().FindFunctions(instance_method_name, lldb::eFunctionNameTypeFull, include_symbols, include_inlines, append, sc_list);
+
+        if (sc_list.GetSize())
+            break;
+
+        ms.Clear();
+        ms.Printf("+[%s %s]", interface_name.c_str(), selector_name.AsCString());
+        ms.Flush();
+        ConstString class_method_name(ms.GetData());
+
+        m_target->GetImages().FindFunctions(class_method_name, lldb::eFunctionNameTypeFull, include_symbols, include_inlines, append, sc_list);
+
+        if (sc_list.GetSize())
+            break;
+
+        // Fall back and check for methods in categories.  If we find methods this way, we need to check that they're actually in
+        // categories on the desired class.
+
+        SymbolContextList candidate_sc_list;
+
+        m_target->GetImages().FindFunctions(selector_name, lldb::eFunctionNameTypeSelector, include_symbols, include_inlines, append, candidate_sc_list);
+
+        for (uint32_t ci = 0, ce = candidate_sc_list.GetSize();
+             ci != ce;
+             ++ci)
+        {
+            SymbolContext candidate_sc;
+
+            if (!candidate_sc_list.GetContextAtIndex(ci, candidate_sc))
+                continue;
+
+            if (!candidate_sc.function)
+                continue;
+
+            const char *candidate_name = candidate_sc.function->GetName().AsCString();
+
+            const char *cursor = candidate_name;
+
+            if (*cursor != '+' && *cursor != '-')
+                continue;
+
+            ++cursor;
+
+            if (*cursor != '[')
+                continue;
+
+            ++cursor;
+
+            size_t interface_len = interface_name.length();
+
+            if (strncmp(cursor, interface_name.c_str(), interface_len))
+                continue;
+
+            cursor += interface_len;
+
+            if (*cursor == ' ' || *cursor == '(')
+                sc_list.Append(candidate_sc);
+        }
+    }
+    while (0);
+
+    if (sc_list.GetSize())
+    {
+        // We found a good function symbol.  Use that.
+
+        for (uint32_t i = 0, e = sc_list.GetSize();
+             i != e;
+             ++i)
+        {
+            SymbolContext sc;
+
+            if (!sc_list.GetContextAtIndex(i, sc))
+                continue;
+
+            if (!sc.function)
+                continue;
+
+            CompilerDeclContext function_decl_ctx = sc.function->GetDeclContext();
+            if (!function_decl_ctx)
+                continue;
+
+            ObjCMethodDecl *method_decl = ClangASTContext::DeclContextGetAsObjCMethodDecl(function_decl_ctx);
+
+            if (!method_decl)
+                continue;
+
+            ObjCInterfaceDecl *found_interface_decl = method_decl->getClassInterface();
+
+            if (!found_interface_decl)
+                continue;
+
+            if (found_interface_decl->getName() == interface_decl->getName())
+            {
+                Decl *copied_decl = m_ast_importer_sp->CopyDecl(m_ast_context, &method_decl->getASTContext(), method_decl);
+
+                if (!copied_decl)
+                    continue;
+
+                ObjCMethodDecl *copied_method_decl = dyn_cast<ObjCMethodDecl>(copied_decl);
+
+                if (!copied_method_decl)
+                    continue;
+
+                if (log)
+                {
+                    ASTDumper dumper((Decl*)copied_method_decl);
+                    log->Printf("  CAS::FOMD[%d] found (in symbols) %s", current_id, dumper.GetCString());
+                }
+
+                context.AddNamedDecl(copied_method_decl);
+            }
+        }
+
+        return;
+    }
+
+    // Try the debug information.
+
+    do
+    {
+        ObjCInterfaceDecl *complete_interface_decl = GetCompleteObjCInterface(const_cast<ObjCInterfaceDecl*>(interface_decl));
+
+        if (!complete_interface_decl)
+            break;
+
+        // We found the complete interface.  The runtime never needs to be queried in this scenario.
+
+        DeclFromUser<const ObjCInterfaceDecl> complete_iface_decl(complete_interface_decl);
+
+        if (complete_interface_decl == interface_decl)
+            break; // already checked this one
+
+        if (log)
+            log->Printf("CAS::FOPD[%d] trying origin (ObjCInterfaceDecl*)%p/(ASTContext*)%p...",
+                        current_id, static_cast<void*>(complete_interface_decl),
+                        static_cast<void*>(&complete_iface_decl->getASTContext()));
+
+        FindObjCMethodDeclsWithOrigin(current_id,
+                                      context,
+                                      complete_interface_decl,
+                                      m_ast_context,
+                                      m_ast_importer_sp.get(),
+                                      "in debug info");
+
+        return;
+    }
+    while (0);
+    
+    do
+    {
+        // Check the modules only if the debug information didn't have a complete interface.
+        
+        if (ClangModulesDeclVendor *modules_decl_vendor = m_target->GetClangModulesDeclVendor())
+        {
+            ConstString interface_name(interface_decl->getNameAsString().c_str());
+            bool append = false;
+            uint32_t max_matches = 1;
+            std::vector <clang::NamedDecl *> decls;
+            
+            if (!modules_decl_vendor->FindDecls(interface_name,
+                                                append,
+                                                max_matches,
+                                                decls))
+                break;
+
+            ObjCInterfaceDecl *interface_decl_from_modules = dyn_cast<ObjCInterfaceDecl>(decls[0]);
+            
+            if (!interface_decl_from_modules)
+                break;
+            
+            if (FindObjCMethodDeclsWithOrigin(current_id,
+                                              context,
+                                              interface_decl_from_modules,
+                                              m_ast_context,
+                                              m_ast_importer_sp.get(),
+                                              "in modules"))
+                return;
+        }
+    }
+    while (0);
+
+    do
+    {
+        // Check the runtime only if the debug information didn't have a complete interface and the modules don't get us anywhere.
+
+        lldb::ProcessSP process(m_target->GetProcessSP());
+
+        if (!process)
+            break;
+
+        ObjCLanguageRuntime *language_runtime(process->GetObjCLanguageRuntime());
+
+        if (!language_runtime)
+            break;
+
+        DeclVendor *decl_vendor = language_runtime->GetDeclVendor();
+
+        if (!decl_vendor)
+            break;
+
+        ConstString interface_name(interface_decl->getNameAsString().c_str());
+        bool append = false;
+        uint32_t max_matches = 1;
+        std::vector <clang::NamedDecl *> decls;
+
+        if (!decl_vendor->FindDecls(interface_name,
+                                    append,
+                                    max_matches,
+                                    decls))
+            break;
+
+        ObjCInterfaceDecl *runtime_interface_decl = dyn_cast<ObjCInterfaceDecl>(decls[0]);
+        
+        if (!runtime_interface_decl)
+            break;
+
+        FindObjCMethodDeclsWithOrigin(current_id,
+                                      context,
+                                      runtime_interface_decl,
+                                      m_ast_context,
+                                      m_ast_importer_sp.get(),
+                                      "in runtime");
+    }
+    while(0);
+}
+
+static bool
+FindObjCPropertyAndIvarDeclsWithOrigin (unsigned int current_id,
+                                        NameSearchContext &context,
+                                        clang::ASTContext &ast_context,
+                                        ClangASTImporter *ast_importer,
+                                        DeclFromUser<const ObjCInterfaceDecl> &origin_iface_decl)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (origin_iface_decl.IsInvalid())
+        return false;
+
+    std::string name_str = context.m_decl_name.getAsString();
+    StringRef name(name_str.c_str());
+    IdentifierInfo &name_identifier(origin_iface_decl->getASTContext().Idents.get(name));
+
+    DeclFromUser<ObjCPropertyDecl> origin_property_decl(origin_iface_decl->FindPropertyDeclaration(&name_identifier));
+
+    bool found = false;
+
+    if (origin_property_decl.IsValid())
+    {
+        DeclFromParser<ObjCPropertyDecl> parser_property_decl(origin_property_decl.Import(ast_importer, ast_context));
+        if (parser_property_decl.IsValid())
+        {
+            if (log)
+            {
+                ASTDumper dumper((Decl*)parser_property_decl.decl);
+                log->Printf("  CAS::FOPD[%d] found %s", current_id, dumper.GetCString());
+            }
+
+            context.AddNamedDecl(parser_property_decl.decl);
+            found = true;
+        }
+    }
+
+    DeclFromUser<ObjCIvarDecl> origin_ivar_decl(origin_iface_decl->getIvarDecl(&name_identifier));
+
+    if (origin_ivar_decl.IsValid())
+    {
+        DeclFromParser<ObjCIvarDecl> parser_ivar_decl(origin_ivar_decl.Import(ast_importer, ast_context));
+        if (parser_ivar_decl.IsValid())
+        {
+            if (log)
+            {
+                ASTDumper dumper((Decl*)parser_ivar_decl.decl);
+                log->Printf("  CAS::FOPD[%d] found %s", current_id, dumper.GetCString());
+            }
+
+            context.AddNamedDecl(parser_ivar_decl.decl);
+            found = true;
+        }
+    }
+
+    return found;
+}
+
+void
+ClangASTSource::FindObjCPropertyAndIvarDecls (NameSearchContext &context)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    static unsigned int invocation_id = 0;
+    unsigned int current_id = invocation_id++;
+
+    DeclFromParser<const ObjCInterfaceDecl> parser_iface_decl(cast<ObjCInterfaceDecl>(context.m_decl_context));
+    DeclFromUser<const ObjCInterfaceDecl> origin_iface_decl(parser_iface_decl.GetOrigin(m_ast_importer_sp.get()));
+
+    ConstString class_name(parser_iface_decl->getNameAsString().c_str());
+
+    if (log)
+        log->Printf("ClangASTSource::FindObjCPropertyAndIvarDecls[%d] on (ASTContext*)%p for '%s.%s'",
+                    current_id, static_cast<void*>(m_ast_context),
+                    parser_iface_decl->getNameAsString().c_str(),
+                    context.m_decl_name.getAsString().c_str());
+
+    if (FindObjCPropertyAndIvarDeclsWithOrigin(current_id,
+                                               context,
+                                               *m_ast_context,
+                                               m_ast_importer_sp.get(),
+                                               origin_iface_decl))
+        return;
+
+    if (log)
+        log->Printf("CAS::FOPD[%d] couldn't find the property on origin (ObjCInterfaceDecl*)%p/(ASTContext*)%p, searching elsewhere...",
+                    current_id, static_cast<const void*>(origin_iface_decl.decl),
+                    static_cast<void*>(&origin_iface_decl->getASTContext()));
+
+    SymbolContext null_sc;
+    TypeList type_list;
+
+    do
+    {
+        ObjCInterfaceDecl *complete_interface_decl = GetCompleteObjCInterface(const_cast<ObjCInterfaceDecl*>(parser_iface_decl.decl));
+
+        if (!complete_interface_decl)
+            break;
+
+        // We found the complete interface.  The runtime never needs to be queried in this scenario.
+
+        DeclFromUser<const ObjCInterfaceDecl> complete_iface_decl(complete_interface_decl);
+
+        if (complete_iface_decl.decl == origin_iface_decl.decl)
+            break; // already checked this one
+
+        if (log)
+            log->Printf("CAS::FOPD[%d] trying origin (ObjCInterfaceDecl*)%p/(ASTContext*)%p...",
+                        current_id,
+                        static_cast<const void*>(complete_iface_decl.decl),
+                        static_cast<void*>(&complete_iface_decl->getASTContext()));
+
+        FindObjCPropertyAndIvarDeclsWithOrigin(current_id,
+                                               context,
+                                               *m_ast_context,
+                                               m_ast_importer_sp.get(),
+                                               complete_iface_decl);
+
+        return;
+    }
+    while(0);
+    
+    do
+    {
+        // Check the modules only if the debug information didn't have a complete interface.
+        
+        ClangModulesDeclVendor *modules_decl_vendor = m_target->GetClangModulesDeclVendor();
+        
+        if (!modules_decl_vendor)
+            break;
+        
+        bool append = false;
+        uint32_t max_matches = 1;
+        std::vector <clang::NamedDecl *> decls;
+        
+        if (!modules_decl_vendor->FindDecls(class_name,
+                                            append,
+                                            max_matches,
+                                            decls))
+            break;
+        
+        DeclFromUser<const ObjCInterfaceDecl> interface_decl_from_modules(dyn_cast<ObjCInterfaceDecl>(decls[0]));
+        
+        if (!interface_decl_from_modules.IsValid())
+            break;
+        
+        if (log)
+            log->Printf("CAS::FOPD[%d] trying module (ObjCInterfaceDecl*)%p/(ASTContext*)%p...",
+                        current_id,
+                        static_cast<const void*>(interface_decl_from_modules.decl),
+                        static_cast<void*>(&interface_decl_from_modules->getASTContext()));
+        
+        if (FindObjCPropertyAndIvarDeclsWithOrigin(current_id,
+                                                   context,
+                                                   *m_ast_context,
+                                                   m_ast_importer_sp.get(),
+                                                   interface_decl_from_modules))
+            return;
+    }
+    while(0);
+
+    do
+    {
+        // Check the runtime only if the debug information didn't have a complete interface
+        // and nothing was in the modules.
+
+        lldb::ProcessSP process(m_target->GetProcessSP());
+
+        if (!process)
+            return;
+
+        ObjCLanguageRuntime *language_runtime(process->GetObjCLanguageRuntime());
+
+        if (!language_runtime)
+            return;
+
+        DeclVendor *decl_vendor = language_runtime->GetDeclVendor();
+
+        if (!decl_vendor)
+            break;
+
+        bool append = false;
+        uint32_t max_matches = 1;
+        std::vector <clang::NamedDecl *> decls;
+
+        if (!decl_vendor->FindDecls(class_name,
+                                    append,
+                                    max_matches,
+                                    decls))
+            break;
+
+        DeclFromUser<const ObjCInterfaceDecl> interface_decl_from_runtime(dyn_cast<ObjCInterfaceDecl>(decls[0]));
+        
+        if (!interface_decl_from_runtime.IsValid())
+            break;
+
+        if (log)
+            log->Printf("CAS::FOPD[%d] trying runtime (ObjCInterfaceDecl*)%p/(ASTContext*)%p...",
+                        current_id,
+                        static_cast<const void*>(interface_decl_from_runtime.decl),
+                        static_cast<void*>(&interface_decl_from_runtime->getASTContext()));
+
+        if (FindObjCPropertyAndIvarDeclsWithOrigin(current_id,
+                                                   context,
+                                                   *m_ast_context,
+                                                   m_ast_importer_sp.get(),
+                                                   interface_decl_from_runtime))
+            return;
+    }
+    while(0);
+}
+
+typedef llvm::DenseMap<const FieldDecl *, uint64_t> FieldOffsetMap;
+typedef llvm::DenseMap<const CXXRecordDecl *, CharUnits> BaseOffsetMap;
+
+template <class D, class O>
+static bool
+ImportOffsetMap(llvm::DenseMap<const D *, O> &destination_map, llvm::DenseMap<const D *, O> &source_map,
+                ClangASTImporter *importer, ASTContext &dest_ctx)
+{
+    // When importing fields into a new record, clang has a hard requirement that
+    // fields be imported in field offset order.  Since they are stored in a DenseMap
+    // with a pointer as the key type, this means we cannot simply iterate over the
+    // map, as the order will be non-deterministic.  Instead we have to sort by the offset
+    // and then insert in sorted order.
+    typedef llvm::DenseMap<const D *, O> MapType;
+    typedef typename MapType::value_type PairType;
+    std::vector<PairType> sorted_items;
+    sorted_items.reserve(source_map.size());
+    sorted_items.assign(source_map.begin(), source_map.end());
+    std::sort(sorted_items.begin(), sorted_items.end(),
+              [](const PairType &lhs, const PairType &rhs)
+              {
+                  return lhs.second < rhs.second;
+              });
+
+    for (const auto &item : sorted_items)
+    {
+        DeclFromUser<D> user_decl(const_cast<D *>(item.first));
+        DeclFromParser <D> parser_decl(user_decl.Import(importer, dest_ctx));
+        if (parser_decl.IsInvalid())
+            return false;
+        destination_map.insert(std::pair<const D *, O>(parser_decl.decl, item.second));
+    }
+
+    return true;
+}
+
+template <bool IsVirtual>
+bool
+ExtractBaseOffsets(const ASTRecordLayout &record_layout, DeclFromUser<const CXXRecordDecl> &record,
+                   BaseOffsetMap &base_offsets)
+{
+    for (CXXRecordDecl::base_class_const_iterator bi = (IsVirtual ? record->vbases_begin() : record->bases_begin()),
+                                                  be = (IsVirtual ? record->vbases_end() : record->bases_end());
+         bi != be; ++bi)
+    {
+        if (!IsVirtual && bi->isVirtual())
+            continue;
+
+        const clang::Type *origin_base_type = bi->getType().getTypePtr();
+        const clang::RecordType *origin_base_record_type = origin_base_type->getAs<RecordType>();
+
+        if (!origin_base_record_type)
+            return false;
+
+        DeclFromUser <RecordDecl> origin_base_record(origin_base_record_type->getDecl());
+
+        if (origin_base_record.IsInvalid())
+            return false;
+
+        DeclFromUser <CXXRecordDecl> origin_base_cxx_record(DynCast<CXXRecordDecl>(origin_base_record));
+
+        if (origin_base_cxx_record.IsInvalid())
+            return false;
+
+        CharUnits base_offset;
+
+        if (IsVirtual)
+            base_offset = record_layout.getVBaseClassOffset(origin_base_cxx_record.decl);
+        else
+            base_offset = record_layout.getBaseClassOffset(origin_base_cxx_record.decl);
+
+        base_offsets.insert(std::pair<const CXXRecordDecl *, CharUnits>(origin_base_cxx_record.decl, base_offset));
+    }
+
+    return true;
+}
+
+bool
+ClangASTSource::layoutRecordType(const RecordDecl *record, uint64_t &size, uint64_t &alignment,
+                                 FieldOffsetMap &field_offsets, BaseOffsetMap &base_offsets,
+                                 BaseOffsetMap &virtual_base_offsets)
+{
+    ClangASTMetrics::RegisterRecordLayout();
+
+    static unsigned int invocation_id = 0;
+    unsigned int current_id = invocation_id++;
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (log)
+        log->Printf("LayoutRecordType[%u] on (ASTContext*)%p for (RecordDecl*)%p [name = '%s']",
+                    current_id, static_cast<void*>(m_ast_context),
+                    static_cast<const void*>(record),
+                    record->getNameAsString().c_str());
+
+    DeclFromParser <const RecordDecl> parser_record(record);
+    DeclFromUser <const RecordDecl> origin_record(parser_record.GetOrigin(m_ast_importer_sp.get()));
+
+    if (origin_record.IsInvalid())
+        return false;
+
+    FieldOffsetMap origin_field_offsets;
+    BaseOffsetMap origin_base_offsets;
+    BaseOffsetMap origin_virtual_base_offsets;
+
+    ClangASTContext::GetCompleteDecl(&origin_record->getASTContext(), const_cast<RecordDecl*>(origin_record.decl));
+
+    clang::RecordDecl* definition = origin_record.decl->getDefinition();
+    if (!definition || !definition->isCompleteDefinition())
+        return false;
+
+    const ASTRecordLayout &record_layout(origin_record->getASTContext().getASTRecordLayout(origin_record.decl));
+
+    int field_idx = 0, field_count = record_layout.getFieldCount();
+
+    for (RecordDecl::field_iterator fi = origin_record->field_begin(), fe = origin_record->field_end(); fi != fe; ++fi)
+    {
+        if (field_idx >= field_count)
+            return false; // Layout didn't go well.  Bail out.
+
+        uint64_t field_offset = record_layout.getFieldOffset(field_idx);
+
+        origin_field_offsets.insert(std::pair<const FieldDecl *, uint64_t>(*fi, field_offset));
+
+        field_idx++;
+    }
+
+    ASTContext &parser_ast_context(record->getASTContext());
+
+    DeclFromUser <const CXXRecordDecl> origin_cxx_record(DynCast<const CXXRecordDecl>(origin_record));
+
+    if (origin_cxx_record.IsValid())
+    {
+        if (!ExtractBaseOffsets<false>(record_layout, origin_cxx_record, origin_base_offsets) ||
+            !ExtractBaseOffsets<true>(record_layout, origin_cxx_record, origin_virtual_base_offsets))
+            return false;
+    }
+
+    if (!ImportOffsetMap(field_offsets, origin_field_offsets, m_ast_importer_sp.get(), parser_ast_context) ||
+        !ImportOffsetMap(base_offsets, origin_base_offsets, m_ast_importer_sp.get(), parser_ast_context) ||
+        !ImportOffsetMap(virtual_base_offsets, origin_virtual_base_offsets, m_ast_importer_sp.get(), parser_ast_context))
+        return false;
+
+    size = record_layout.getSize().getQuantity() * m_ast_context->getCharWidth();
+    alignment = record_layout.getAlignment().getQuantity() * m_ast_context->getCharWidth();
+
+    if (log)
+    {
+        log->Printf("LRT[%u] returned:", current_id);
+        log->Printf("LRT[%u]   Original = (RecordDecl*)%p", current_id,
+                    static_cast<const void*>(origin_record.decl));
+        log->Printf("LRT[%u]   Size = %" PRId64, current_id, size);
+        log->Printf("LRT[%u]   Alignment = %" PRId64, current_id, alignment);
+        log->Printf("LRT[%u]   Fields:", current_id);
+        for (RecordDecl::field_iterator fi = record->field_begin(), fe = record->field_end();
+             fi != fe;
+             ++fi)
+        {
+            log->Printf("LRT[%u]     (FieldDecl*)%p, Name = '%s', Offset = %" PRId64 " bits", current_id,
+                        static_cast<void *>(*fi), fi->getNameAsString().c_str(), field_offsets[*fi]);
+        }
+        DeclFromParser <const CXXRecordDecl> parser_cxx_record = DynCast<const CXXRecordDecl>(parser_record);
+        if (parser_cxx_record.IsValid())
+        {
+            log->Printf("LRT[%u]   Bases:", current_id);
+            for (CXXRecordDecl::base_class_const_iterator bi = parser_cxx_record->bases_begin(), be = parser_cxx_record->bases_end();
+                 bi != be;
+                 ++bi)
+            {
+                bool is_virtual = bi->isVirtual();
+
+                QualType base_type = bi->getType();
+                const RecordType *base_record_type = base_type->getAs<RecordType>();
+                DeclFromParser <RecordDecl> base_record(base_record_type->getDecl());
+                DeclFromParser <CXXRecordDecl> base_cxx_record = DynCast<CXXRecordDecl>(base_record);
+
+                log->Printf("LRT[%u]     %s(CXXRecordDecl*)%p, Name = '%s', Offset = %" PRId64 " chars", current_id,
+                            (is_virtual ? "Virtual " : ""), static_cast<void *>(base_cxx_record.decl),
+                            base_cxx_record.decl->getNameAsString().c_str(),
+                            (is_virtual ? virtual_base_offsets[base_cxx_record.decl].getQuantity()
+                                        : base_offsets[base_cxx_record.decl].getQuantity()));
+            }
+        }
+        else
+        {
+            log->Printf("LRD[%u]   Not a CXXRecord, so no bases", current_id);
+        }
+    }
+
+    return true;
+}
+
+void
+ClangASTSource::CompleteNamespaceMap (ClangASTImporter::NamespaceMapSP &namespace_map,
+                                      const ConstString &name,
+                                      ClangASTImporter::NamespaceMapSP &parent_map) const
+{
+    static unsigned int invocation_id = 0;
+    unsigned int current_id = invocation_id++;
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (log)
+    {
+        if (parent_map && parent_map->size())
+            log->Printf("CompleteNamespaceMap[%u] on (ASTContext*)%p Searching for namespace %s in namespace %s",
+                        current_id, static_cast<void*>(m_ast_context),
+                        name.GetCString(),
+                        parent_map->begin()->second.GetName().AsCString());
+        else
+            log->Printf("CompleteNamespaceMap[%u] on (ASTContext*)%p Searching for namespace %s",
+                        current_id, static_cast<void*>(m_ast_context),
+                        name.GetCString());
+    }
+
+    if (parent_map)
+    {
+        for (ClangASTImporter::NamespaceMap::iterator i = parent_map->begin(), e = parent_map->end();
+             i != e;
+             ++i)
+        {
+            CompilerDeclContext found_namespace_decl;
+
+            lldb::ModuleSP module_sp = i->first;
+            CompilerDeclContext module_parent_namespace_decl = i->second;
+
+            SymbolVendor *symbol_vendor = module_sp->GetSymbolVendor();
+
+            if (!symbol_vendor)
+                continue;
+
+            SymbolContext null_sc;
+
+            found_namespace_decl = symbol_vendor->FindNamespace(null_sc, name, &module_parent_namespace_decl);
+
+            if (!found_namespace_decl)
+                continue;
+
+            namespace_map->push_back(std::pair<lldb::ModuleSP, CompilerDeclContext>(module_sp, found_namespace_decl));
+
+            if (log)
+                log->Printf("  CMN[%u] Found namespace %s in module %s",
+                            current_id,
+                            name.GetCString(),
+                            module_sp->GetFileSpec().GetFilename().GetCString());
+        }
+    }
+    else
+    {
+        const ModuleList &target_images = m_target->GetImages();
+        Mutex::Locker modules_locker(target_images.GetMutex());
+
+        CompilerDeclContext null_namespace_decl;
+
+        for (size_t i = 0, e = target_images.GetSize(); i < e; ++i)
+        {
+            lldb::ModuleSP image = target_images.GetModuleAtIndexUnlocked(i);
+
+            if (!image)
+                continue;
+
+            CompilerDeclContext found_namespace_decl;
+
+            SymbolVendor *symbol_vendor = image->GetSymbolVendor();
+
+            if (!symbol_vendor)
+                continue;
+
+            SymbolContext null_sc;
+
+            found_namespace_decl = symbol_vendor->FindNamespace(null_sc, name, &null_namespace_decl);
+
+            if (!found_namespace_decl)
+                continue;
+
+            namespace_map->push_back(std::pair<lldb::ModuleSP, CompilerDeclContext>(image, found_namespace_decl));
+
+            if (log)
+                log->Printf("  CMN[%u] Found namespace %s in module %s",
+                            current_id,
+                            name.GetCString(),
+                            image->GetFileSpec().GetFilename().GetCString());
+        }
+    }
+}
+
+NamespaceDecl *
+ClangASTSource::AddNamespace (NameSearchContext &context, ClangASTImporter::NamespaceMapSP &namespace_decls)
+{
+    if (!namespace_decls)
+        return nullptr;
+
+    const CompilerDeclContext &namespace_decl = namespace_decls->begin()->second;
+
+    clang::ASTContext *src_ast = ClangASTContext::DeclContextGetClangASTContext(namespace_decl);
+    if (!src_ast)
+        return nullptr;
+    clang::NamespaceDecl *src_namespace_decl = ClangASTContext::DeclContextGetAsNamespaceDecl(namespace_decl);
+
+    if (!src_namespace_decl)
+        return nullptr;
+
+    Decl *copied_decl = m_ast_importer_sp->CopyDecl(m_ast_context, src_ast, src_namespace_decl);
+
+    if (!copied_decl)
+        return nullptr;
+
+    NamespaceDecl *copied_namespace_decl = dyn_cast<NamespaceDecl>(copied_decl);
+
+    if (!copied_namespace_decl)
+        return nullptr;
+
+    context.m_decls.push_back(copied_namespace_decl);
+
+    m_ast_importer_sp->RegisterNamespaceMap(copied_namespace_decl, namespace_decls);
+
+    return dyn_cast<NamespaceDecl>(copied_decl);
+}
+
+CompilerType
+ClangASTSource::GuardedCopyType (const CompilerType &src_type)
+{
+    ClangASTContext *src_ast = llvm::dyn_cast_or_null<ClangASTContext>(src_type.GetTypeSystem());
+    if (src_ast == nullptr)
+        return CompilerType();
+
+    ClangASTMetrics::RegisterLLDBImport();
+
+    SetImportInProgress(true);
+
+    QualType copied_qual_type = m_ast_importer_sp->CopyType (m_ast_context, src_ast->getASTContext(), ClangASTContext::GetQualType(src_type));
+
+    SetImportInProgress(false);
+
+    if (copied_qual_type.getAsOpaquePtr() && copied_qual_type->getCanonicalTypeInternal().isNull())
+        // this shouldn't happen, but we're hardening because the AST importer seems to be generating bad types
+        // on occasion.
+        return CompilerType();
+
+    return CompilerType(m_ast_context, copied_qual_type);
+}
+
+clang::NamedDecl *
+NameSearchContext::AddVarDecl(const CompilerType &type)
+{
+    assert (type && "Type for variable must be valid!");
+
+    if (!type.IsValid())
+        return NULL;
+
+    ClangASTContext* lldb_ast = llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem());
+    if (!lldb_ast)
+        return NULL;
+    
+    IdentifierInfo *ii = m_decl_name.getAsIdentifierInfo();
+
+    clang::ASTContext *ast = lldb_ast->getASTContext();
+
+    clang::NamedDecl *Decl = VarDecl::Create(*ast,
+                                             const_cast<DeclContext*>(m_decl_context),
+                                             SourceLocation(),
+                                             SourceLocation(),
+                                             ii,
+                                             ClangASTContext::GetQualType(type),
+                                             0,
+                                             SC_Static);
+    m_decls.push_back(Decl);
+
+    return Decl;
+}
+
+clang::NamedDecl *
+NameSearchContext::AddFunDecl (const CompilerType &type, bool extern_c)
+{
+    assert (type && "Type for variable must be valid!");
+
+    if (!type.IsValid())
+        return NULL;
+
+    if (m_function_types.count(type))
+        return NULL;
+    
+    ClangASTContext* lldb_ast = llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem());
+    if (!lldb_ast)
+        return NULL;
+
+    m_function_types.insert(type);
+
+    QualType qual_type (ClangASTContext::GetQualType(type));
+
+    clang::ASTContext *ast = lldb_ast->getASTContext();
+
+    const bool isInlineSpecified = false;
+    const bool hasWrittenPrototype = true;
+    const bool isConstexprSpecified = false;
+    
+    clang::DeclContext *context = const_cast<DeclContext*>(m_decl_context);
+    
+    if (extern_c) {
+        context = LinkageSpecDecl::Create(*ast,
+                                          context,
+                                          SourceLocation(),
+                                          SourceLocation(),
+                                          clang::LinkageSpecDecl::LanguageIDs::lang_c,
+                                          false);
+    }
+
+    // Pass the identifier info for functions the decl_name is needed for operators
+    clang::DeclarationName decl_name = m_decl_name.getNameKind() == DeclarationName::Identifier ? m_decl_name.getAsIdentifierInfo() : m_decl_name;
+
+    clang::FunctionDecl *func_decl = FunctionDecl::Create (*ast,
+                                                           context,
+                                                           SourceLocation(),
+                                                           SourceLocation(),
+                                                           decl_name,
+                                                           qual_type,
+                                                           NULL,
+                                                           SC_Extern,
+                                                           isInlineSpecified,
+                                                           hasWrittenPrototype,
+                                                           isConstexprSpecified);
+
+    // We have to do more than just synthesize the FunctionDecl.  We have to
+    // synthesize ParmVarDecls for all of the FunctionDecl's arguments.  To do
+    // this, we raid the function's FunctionProtoType for types.
+
+    const FunctionProtoType *func_proto_type = qual_type.getTypePtr()->getAs<FunctionProtoType>();
+
+    if (func_proto_type)
+    {
+        unsigned NumArgs = func_proto_type->getNumParams();
+        unsigned ArgIndex;
+
+        SmallVector<ParmVarDecl *, 5> parm_var_decls;
+
+        for (ArgIndex = 0; ArgIndex < NumArgs; ++ArgIndex)
+        {
+            QualType arg_qual_type (func_proto_type->getParamType(ArgIndex));
+
+            parm_var_decls.push_back(ParmVarDecl::Create (*ast,
+                                                          const_cast<DeclContext*>(context),
+                                                          SourceLocation(),
+                                                          SourceLocation(),
+                                                          NULL,
+                                                          arg_qual_type,
+                                                          NULL,
+                                                          SC_Static,
+                                                          NULL));
+        }
+
+        func_decl->setParams(ArrayRef<ParmVarDecl*>(parm_var_decls));
+    }
+    else
+    {
+        Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+        if (log)
+            log->Printf("Function type wasn't a FunctionProtoType");
+    }
+
+    m_decls.push_back(func_decl);
+
+    return func_decl;
+}
+
+clang::NamedDecl *
+NameSearchContext::AddGenericFunDecl()
+{
+    FunctionProtoType::ExtProtoInfo proto_info;
+
+    proto_info.Variadic = true;
+
+    QualType generic_function_type(m_ast_source.m_ast_context->getFunctionType (m_ast_source.m_ast_context->UnknownAnyTy,    // result
+                                                                                ArrayRef<QualType>(),                                        // argument types
+                                                                                proto_info));
+
+    return AddFunDecl(CompilerType (m_ast_source.m_ast_context, generic_function_type), true);
+}
+
+clang::NamedDecl *
+NameSearchContext::AddTypeDecl(const CompilerType &clang_type)
+{
+    if (clang_type)
+    {
+        QualType qual_type = ClangASTContext::GetQualType(clang_type);
+
+        if (const TypedefType *typedef_type = llvm::dyn_cast<TypedefType>(qual_type))
+        {
+            TypedefNameDecl *typedef_name_decl = typedef_type->getDecl();
+
+            m_decls.push_back(typedef_name_decl);
+
+            return (NamedDecl*)typedef_name_decl;
+        }
+        else if (const TagType *tag_type = qual_type->getAs<TagType>())
+        {
+            TagDecl *tag_decl = tag_type->getDecl();
+
+            m_decls.push_back(tag_decl);
+
+            return tag_decl;
+        }
+        else if (const ObjCObjectType *objc_object_type = qual_type->getAs<ObjCObjectType>())
+        {
+            ObjCInterfaceDecl *interface_decl = objc_object_type->getInterface();
+
+            m_decls.push_back((NamedDecl*)interface_decl);
+
+            return (NamedDecl*)interface_decl;
+        }
+    }
+    return NULL;
+}
+
+void
+NameSearchContext::AddLookupResult (clang::DeclContextLookupResult result)
+{
+    for (clang::NamedDecl *decl : result)
+        m_decls.push_back (decl);
+}
+
+void
+NameSearchContext::AddNamedDecl (clang::NamedDecl *decl)
+{
+    m_decls.push_back (decl);
+}
diff --git a/source/Plugins/ExpressionParser/Clang/ClangASTSource.h b/source/Plugins/ExpressionParser/Clang/ClangASTSource.h
new file mode 100644
index 0000000000000..bb6384721f513
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangASTSource.h
@@ -0,0 +1,526 @@
+//===-- ClangASTSource.h ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ClangASTSource_h_
+#define liblldb_ClangASTSource_h_
+
+#include <set>
+
+#include "clang/Basic/IdentifierTable.h"
+#include "lldb/Symbol/ClangExternalASTSourceCommon.h"
+#include "lldb/Symbol/ClangASTImporter.h"
+#include "lldb/Symbol/CompilerType.h"
+#include "lldb/Target/Target.h"
+
+#include "llvm/ADT/SmallSet.h"
+
+namespace lldb_private {
+    
+//----------------------------------------------------------------------
+/// @class ClangASTSource ClangASTSource.h "lldb/Expression/ClangASTSource.h"
+/// @brief Provider for named objects defined in the debug info for Clang
+///
+/// As Clang parses an expression, it may encounter names that are not
+/// defined inside the expression, including variables, functions, and
+/// types.  Clang knows the name it is looking for, but nothing else.
+/// The ExternalSemaSource class provides Decls (VarDecl, FunDecl, TypeDecl)
+/// to Clang for these names, consulting the ClangExpressionDeclMap to do
+/// the actual lookups.
+//----------------------------------------------------------------------
+class ClangASTSource : 
+    public ClangExternalASTSourceCommon,
+    public ClangASTImporter::MapCompleter
+{
+public:
+    //------------------------------------------------------------------
+    /// Constructor
+    ///
+    /// Initializes class variables.
+    ///
+    /// @param[in] declMap
+    ///     A reference to the LLDB object that handles entity lookup.
+    //------------------------------------------------------------------
+    ClangASTSource (const lldb::TargetSP &target) :
+        m_import_in_progress (false),
+        m_lookups_enabled (false),
+        m_target (target),
+        m_ast_context (NULL),
+        m_active_lexical_decls (),
+        m_active_lookups ()
+    {
+        m_ast_importer_sp = m_target->GetClangASTImporter();
+    }
+  
+    //------------------------------------------------------------------
+    /// Destructor
+    //------------------------------------------------------------------
+    ~ClangASTSource() override;
+    
+    //------------------------------------------------------------------
+    /// Interface stubs.
+    //------------------------------------------------------------------
+    clang::Decl *GetExternalDecl (uint32_t) override {   return NULL;                }
+    clang::Stmt *GetExternalDeclStmt (uint64_t) override {   return NULL;                }
+    clang::Selector GetExternalSelector (uint32_t) override {   return clang::Selector();   }
+    uint32_t GetNumExternalSelectors () override {   return 0;                   }
+    clang::CXXBaseSpecifier *GetExternalCXXBaseSpecifiers (uint64_t Offset) override
+                                                    {   return NULL;                }
+    void MaterializeVisibleDecls (const clang::DeclContext *DC)
+                                                    {   return;                     }
+      
+    void InstallASTContext (clang::ASTContext *ast_context)
+    {
+        m_ast_context = ast_context;
+        m_ast_importer_sp->InstallMapCompleter(ast_context, *this);
+    }
+  
+    //
+    // APIs for ExternalASTSource
+    //
+
+    //------------------------------------------------------------------
+    /// Look up all Decls that match a particular name.  Only handles
+    /// Identifiers and DeclContexts that are either NamespaceDecls or
+    /// TranslationUnitDecls.  Calls SetExternalVisibleDeclsForName with
+    /// the result.
+    ///
+    /// The work for this function is done by
+    /// void FindExternalVisibleDecls (NameSearchContext &);
+    ///
+    /// @param[in] DC
+    ///     The DeclContext to register the found Decls in.
+    ///
+    /// @param[in] Name
+    ///     The name to find entries for.
+    ///
+    /// @return
+    ///     Whatever SetExternalVisibleDeclsForName returns.
+    //------------------------------------------------------------------
+    bool FindExternalVisibleDeclsByName(const clang::DeclContext *DC, clang::DeclarationName Name) override;
+
+    //------------------------------------------------------------------
+    /// Enumerate all Decls in a given lexical context.
+    ///
+    /// @param[in] DC
+    ///     The DeclContext being searched.
+    ///
+    /// @param[in] isKindWeWant
+    ///     A callback function that returns true given the
+    ///     DeclKinds of desired Decls, and false otherwise.
+    ///
+    /// @param[in] Decls
+    ///     A vector that is filled in with matching Decls.
+    //------------------------------------------------------------------
+    void FindExternalLexicalDecls(
+        const clang::DeclContext *DC, llvm::function_ref<bool(clang::Decl::Kind)> IsKindWeWant,
+        llvm::SmallVectorImpl<clang::Decl *> &Decls) override;
+
+    //------------------------------------------------------------------
+    /// Specify the layout of the contents of a RecordDecl.
+    ///
+    /// @param[in] Record
+    ///     The record (in the parser's AST context) that needs to be
+    ///     laid out.
+    ///
+    /// @param[out] Size
+    ///     The total size of the record in bits.
+    ///
+    /// @param[out] Alignment
+    ///     The alignment of the record in bits.
+    ///
+    /// @param[in] FieldOffsets
+    ///     A map that must be populated with pairs of the record's
+    ///     fields (in the parser's AST context) and their offsets
+    ///     (measured in bits).
+    ///
+    /// @param[in] BaseOffsets
+    ///     A map that must be populated with pairs of the record's
+    ///     C++ concrete base classes (in the parser's AST context, 
+    ///     and only if the record is a CXXRecordDecl and has base
+    ///     classes) and their offsets (measured in bytes).
+    ///
+    /// @param[in] VirtualBaseOffsets
+    ///     A map that must be populated with pairs of the record's
+    ///     C++ virtual base classes (in the parser's AST context, 
+    ///     and only if the record is a CXXRecordDecl and has base
+    ///     classes) and their offsets (measured in bytes).
+    ///
+    /// @return
+    ///     True <=> the layout is valid.
+    //-----------------------------------------------------------------
+    bool layoutRecordType(const clang::RecordDecl *Record, uint64_t &Size, uint64_t &Alignment,
+                          llvm::DenseMap<const clang::FieldDecl *, uint64_t> &FieldOffsets,
+                          llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &BaseOffsets,
+                          llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &VirtualBaseOffsets) override;
+
+    //------------------------------------------------------------------
+    /// Complete a TagDecl.
+    ///
+    /// @param[in] Tag
+    ///     The Decl to be completed in place.
+    //------------------------------------------------------------------
+    void CompleteType(clang::TagDecl *Tag) override;
+
+    //------------------------------------------------------------------
+    /// Complete an ObjCInterfaceDecl.
+    ///
+    /// @param[in] Class
+    ///     The Decl to be completed in place.
+    //------------------------------------------------------------------
+    void CompleteType(clang::ObjCInterfaceDecl *Class) override;
+
+    //------------------------------------------------------------------
+    /// Called on entering a translation unit.  Tells Clang by calling
+    /// setHasExternalVisibleStorage() and setHasExternalLexicalStorage()
+    /// that this object has something to say about undefined names.
+    ///
+    /// @param[in] ASTConsumer
+    ///     Unused.
+    //------------------------------------------------------------------
+    void StartTranslationUnit(clang::ASTConsumer *Consumer) override;
+
+    //
+    // APIs for NamespaceMapCompleter
+    //
+    
+    //------------------------------------------------------------------
+    /// Look up the modules containing a given namespace and put the 
+    /// appropriate entries in the namespace map.
+    ///
+    /// @param[in] namespace_map
+    ///     The map to be completed.
+    ///
+    /// @param[in] name
+    ///     The name of the namespace to be found.
+    ///
+    /// @param[in] parent_map
+    ///     The map for the namespace's parent namespace, if there is
+    ///     one.
+    //------------------------------------------------------------------
+    void CompleteNamespaceMap(ClangASTImporter::NamespaceMapSP &namespace_map, const ConstString &name,
+                              ClangASTImporter::NamespaceMapSP &parent_map) const override;
+
+    //
+    // Helper APIs
+    //
+    
+    clang::NamespaceDecl *
+    AddNamespace (NameSearchContext &context, 
+                  ClangASTImporter::NamespaceMapSP &namespace_decls);
+    
+    //------------------------------------------------------------------
+    /// The worker function for FindExternalVisibleDeclsByName.
+    ///
+    /// @param[in] context
+    ///     The NameSearchContext to use when filing results.
+    //------------------------------------------------------------------
+    virtual void FindExternalVisibleDecls (NameSearchContext &context);
+    
+    void SetImportInProgress (bool import_in_progress) { m_import_in_progress = import_in_progress; }
+    bool GetImportInProgress () { return m_import_in_progress; }
+    
+    void SetLookupsEnabled (bool lookups_enabled) { m_lookups_enabled = lookups_enabled; }
+    bool GetLookupsEnabled () { return m_lookups_enabled; } 
+    
+    //----------------------------------------------------------------------
+    /// @class ClangASTSourceProxy ClangASTSource.h "lldb/Expression/ClangASTSource.h"
+    /// @brief Proxy for ClangASTSource
+    ///
+    /// Clang AST contexts like to own their AST sources, so this is a
+    /// state-free proxy object.
+    //----------------------------------------------------------------------
+    class ClangASTSourceProxy : public ClangExternalASTSourceCommon
+    {
+    public:
+        ClangASTSourceProxy (ClangASTSource &original) :
+            m_original(original)
+        {
+        }
+
+        bool
+        FindExternalVisibleDeclsByName(const clang::DeclContext *DC, clang::DeclarationName Name) override
+        {
+            return m_original.FindExternalVisibleDeclsByName(DC, Name);
+        }
+
+        void
+        FindExternalLexicalDecls(const clang::DeclContext *DC,
+                                 llvm::function_ref<bool(clang::Decl::Kind)> IsKindWeWant,
+                                 llvm::SmallVectorImpl<clang::Decl *> &Decls) override
+        {
+            return m_original.FindExternalLexicalDecls(DC, IsKindWeWant, Decls);
+        }
+
+        void
+        CompleteType(clang::TagDecl *Tag) override
+        {
+            return m_original.CompleteType(Tag);
+        }
+
+        void
+        CompleteType(clang::ObjCInterfaceDecl *Class) override
+        {
+            return m_original.CompleteType(Class);
+        }
+
+        bool
+        layoutRecordType(const clang::RecordDecl *Record, uint64_t &Size, uint64_t &Alignment,
+                         llvm::DenseMap<const clang::FieldDecl *, uint64_t> &FieldOffsets,
+                         llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &BaseOffsets,
+                         llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &VirtualBaseOffsets) override
+        {
+            return m_original.layoutRecordType(Record,
+                                               Size, 
+                                               Alignment, 
+                                               FieldOffsets, 
+                                               BaseOffsets, 
+                                               VirtualBaseOffsets);
+        }
+
+        void
+        StartTranslationUnit(clang::ASTConsumer *Consumer) override
+        {
+            return m_original.StartTranslationUnit(Consumer);
+        }
+        
+        ClangASTMetadata *
+        GetMetadata(const void * object)
+        {
+            return m_original.GetMetadata(object);
+        }
+        
+        void
+        SetMetadata(const void * object, ClangASTMetadata &metadata)
+        {
+            return m_original.SetMetadata(object, metadata);
+        }
+        
+        bool
+        HasMetadata(const void * object)
+        {
+            return m_original.HasMetadata(object);
+        }
+    private:
+        ClangASTSource &m_original;
+    };
+    
+    clang::ExternalASTSource *CreateProxy()
+    {
+        return new ClangASTSourceProxy(*this);
+    }
+    
+protected:
+    //------------------------------------------------------------------
+    /// Look for the complete version of an Objective-C interface, and
+    /// return it if found.
+    ///
+    /// @param[in] interface_decl
+    ///     An ObjCInterfaceDecl that may not be the complete one.
+    ///
+    /// @return
+    ///     NULL if the complete interface couldn't be found;
+    ///     the complete interface otherwise.
+    //------------------------------------------------------------------
+    clang::ObjCInterfaceDecl *
+    GetCompleteObjCInterface (clang::ObjCInterfaceDecl *interface_decl);
+    
+    //------------------------------------------------------------------
+    /// Find all entities matching a given name in a given module,
+    /// using a NameSearchContext to make Decls for them.
+    ///
+    /// @param[in] context
+    ///     The NameSearchContext that can construct Decls for this name.
+    ///
+    /// @param[in] module
+    ///     If non-NULL, the module to query.
+    ///
+    /// @param[in] namespace_decl
+    ///     If valid and module is non-NULL, the parent namespace.
+    ///
+    /// @param[in] current_id
+    ///     The ID for the current FindExternalVisibleDecls invocation,
+    ///     for logging purposes.
+    ///
+    /// @return
+    ///     True on success; false otherwise.
+    //------------------------------------------------------------------
+    void 
+    FindExternalVisibleDecls (NameSearchContext &context, 
+                              lldb::ModuleSP module,
+                              CompilerDeclContext &namespace_decl,
+                              unsigned int current_id);
+    
+    //------------------------------------------------------------------
+    /// Find all Objective-C methods matching a given selector.
+    ///
+    /// @param[in] context
+    ///     The NameSearchContext that can construct Decls for this name.
+    ///     Its m_decl_name contains the selector and its m_decl_context
+    ///     is the containing object.
+    //------------------------------------------------------------------
+    void
+    FindObjCMethodDecls (NameSearchContext &context);
+    
+    //------------------------------------------------------------------
+    /// Find all Objective-C properties and ivars with a given name.
+    ///
+    /// @param[in] context
+    ///     The NameSearchContext that can construct Decls for this name.
+    ///     Its m_decl_name contains the name and its m_decl_context
+    ///     is the containing object.
+    //------------------------------------------------------------------
+    void
+    FindObjCPropertyAndIvarDecls (NameSearchContext &context);
+    
+    //------------------------------------------------------------------
+    /// A wrapper for ClangASTContext::CopyType that sets a flag that
+    /// indicates that we should not respond to queries during import.
+    ///
+    /// @param[in] dest_context
+    ///     The target AST context, typically the parser's AST context.
+    ///
+    /// @param[in] source_context
+    ///     The source AST context, typically the AST context of whatever
+    ///     symbol file the type was found in.
+    ///
+    /// @param[in] src_type
+    ///     The source type.
+    ///
+    /// @return
+    ///     The imported type.
+    //------------------------------------------------------------------
+    CompilerType
+    GuardedCopyType (const CompilerType &src_type);
+    
+    friend struct NameSearchContext;
+    
+    bool                    m_import_in_progress;
+    bool                    m_lookups_enabled;
+
+    const lldb::TargetSP                m_target;           ///< The target to use in finding variables and types.
+    clang::ASTContext                  *m_ast_context;      ///< The AST context requests are coming in for.
+    lldb::ClangASTImporterSP            m_ast_importer_sp;  ///< The target's AST importer.
+    std::set<const clang::Decl *>       m_active_lexical_decls;
+    std::set<const char *>              m_active_lookups;
+};
+
+//----------------------------------------------------------------------
+/// @class NameSearchContext ClangASTSource.h "lldb/Expression/ClangASTSource.h"
+/// @brief Container for all objects relevant to a single name lookup
+///     
+/// LLDB needs to create Decls for entities it finds.  This class communicates
+/// what name is being searched for and provides helper functions to construct
+/// Decls given appropriate type information.
+//----------------------------------------------------------------------
+struct NameSearchContext {
+    ClangASTSource &m_ast_source;                               ///< The AST source making the request
+    llvm::SmallVectorImpl<clang::NamedDecl*> &m_decls;          ///< The list of declarations already constructed
+    ClangASTImporter::NamespaceMapSP m_namespace_map;           ///< The mapping of all namespaces found for this request back to their modules
+    const clang::DeclarationName &m_decl_name;                  ///< The name being looked for
+    const clang::DeclContext *m_decl_context;                   ///< The DeclContext to put declarations into
+    llvm::SmallSet <CompilerType, 5> m_function_types;    ///< All the types of functions that have been reported, so we don't report conflicts
+    
+    struct {
+        bool variable                   : 1;
+        bool function_with_type_info    : 1;
+        bool function                   : 1;
+    } m_found;
+    
+    //------------------------------------------------------------------
+    /// Constructor
+    ///
+    /// Initializes class variables.
+    ///
+    /// @param[in] astSource
+    ///     A reference to the AST source making a request.
+    ///
+    /// @param[in] decls
+    ///     A reference to a list into which new Decls will be placed.  This
+    ///     list is typically empty when the function is called.
+    ///
+    /// @param[in] name
+    ///     The name being searched for (always an Identifier).
+    ///
+    /// @param[in] dc
+    ///     The DeclContext to register Decls in.
+    //------------------------------------------------------------------
+    NameSearchContext (ClangASTSource &astSource,
+                       llvm::SmallVectorImpl<clang::NamedDecl*> &decls,
+                       clang::DeclarationName &name,
+                       const clang::DeclContext *dc) :
+        m_ast_source(astSource),
+        m_decls(decls),
+        m_decl_name(name),
+        m_decl_context(dc)
+    {
+        memset(&m_found, 0, sizeof(m_found));
+    }
+    
+    //------------------------------------------------------------------
+    /// Create a VarDecl with the name being searched for and the provided
+    /// type and register it in the right places.
+    ///
+    /// @param[in] type
+    ///     The opaque QualType for the VarDecl being registered.
+    //------------------------------------------------------------------
+    clang::NamedDecl *AddVarDecl(const CompilerType &type);
+    
+    //------------------------------------------------------------------
+    /// Create a FunDecl with the name being searched for and the provided
+    /// type and register it in the right places.
+    ///
+    /// @param[in] type
+    ///     The opaque QualType for the FunDecl being registered.
+    ///
+    /// @param[in] extern_c
+    ///     If true, build an extern "C" linkage specification for this.
+    //------------------------------------------------------------------
+    clang::NamedDecl *AddFunDecl(const CompilerType &type,
+                                 bool extern_c = false);
+    
+    //------------------------------------------------------------------
+    /// Create a FunDecl with the name being searched for and generic
+    /// type (i.e. intptr_t NAME_GOES_HERE(...)) and register it in the
+    /// right places.
+    //------------------------------------------------------------------
+    clang::NamedDecl *AddGenericFunDecl();
+    
+    //------------------------------------------------------------------
+    /// Create a TypeDecl with the name being searched for and the provided
+    /// type and register it in the right places.
+    ///
+    /// @param[in] compiler_type
+    ///     The opaque QualType for the TypeDecl being registered.
+    //------------------------------------------------------------------
+    clang::NamedDecl *AddTypeDecl(const CompilerType &compiler_type);
+    
+    
+    //------------------------------------------------------------------
+    /// Add Decls from the provided DeclContextLookupResult to the list
+    /// of results.
+    ///
+    /// @param[in] result
+    ///     The DeclContextLookupResult, usually returned as the result
+    ///     of querying a DeclContext.
+    //------------------------------------------------------------------
+    void AddLookupResult (clang::DeclContextLookupResult result);
+    
+    //------------------------------------------------------------------
+    /// Add a NamedDecl to the list of results.
+    ///
+    /// @param[in] decl
+    ///     The NamedDecl, usually returned as the result
+    ///     of querying a DeclContext.
+    //------------------------------------------------------------------
+    void AddNamedDecl (clang::NamedDecl *decl);
+};
+
+} // namespace lldb_private
+
+#endif // liblldb_ClangASTSource_h_
diff --git a/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp b/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp
new file mode 100644
index 0000000000000..c9bc4b6487cda
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp
@@ -0,0 +1,2351 @@
+//===-- ClangExpressionDeclMap.cpp -----------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ClangExpressionDeclMap.h"
+
+#include "ASTDumper.h"
+#include "ClangASTSource.h"
+#include "ClangModulesDeclVendor.h"
+#include "ClangPersistentVariables.h"
+
+#include "clang/AST/ASTConsumer.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/DeclarationName.h"
+#include "clang/AST/Decl.h"
+#include "lldb/lldb-private.h"
+#include "lldb/Core/Address.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/ModuleSpec.h"
+#include "lldb/Core/RegisterValue.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/Core/ValueObjectVariable.h"
+#include "lldb/Expression/Materializer.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Symbol/CompilerDecl.h"
+#include "lldb/Symbol/CompilerDeclContext.h"
+#include "lldb/Symbol/CompileUnit.h"
+#include "lldb/Symbol/Function.h"
+#include "lldb/Symbol/ObjectFile.h"
+#include "lldb/Symbol/SymbolContext.h"
+#include "lldb/Symbol/SymbolVendor.h"
+#include "lldb/Symbol/Type.h"
+#include "lldb/Symbol/TypeList.h"
+#include "lldb/Symbol/Variable.h"
+#include "lldb/Symbol/VariableList.h"
+#include "lldb/Target/CPPLanguageRuntime.h"
+#include "lldb/Target/ExecutionContext.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/RegisterContext.h"
+#include "lldb/Target/StackFrame.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Target/Thread.h"
+
+#include "Plugins/Language/CPlusPlus/CPlusPlusLanguage.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace clang;
+
+ClangExpressionDeclMap::ClangExpressionDeclMap (bool keep_result_in_memory,
+                                                Materializer::PersistentVariableDelegate *result_delegate,
+                                                ExecutionContext &exe_ctx) :
+    ClangASTSource (exe_ctx.GetTargetSP()),
+    m_found_entities (),
+    m_struct_members (),
+    m_keep_result_in_memory (keep_result_in_memory),
+    m_result_delegate (result_delegate),
+    m_parser_vars (),
+    m_struct_vars ()
+{
+    EnableStructVars();
+}
+
+ClangExpressionDeclMap::~ClangExpressionDeclMap()
+{
+    // Note: The model is now that the parser's AST context and all associated
+    //   data does not vanish until the expression has been executed.  This means
+    //   that valuable lookup data (like namespaces) doesn't vanish, but
+
+    DidParse();
+    DisableStructVars();
+}
+
+bool
+ClangExpressionDeclMap::WillParse(ExecutionContext &exe_ctx,
+                                  Materializer *materializer)
+{
+    ClangASTMetrics::ClearLocalCounters();
+
+    EnableParserVars();
+    m_parser_vars->m_exe_ctx = exe_ctx;
+
+    Target *target = exe_ctx.GetTargetPtr();
+    if (exe_ctx.GetFramePtr())
+        m_parser_vars->m_sym_ctx = exe_ctx.GetFramePtr()->GetSymbolContext(lldb::eSymbolContextEverything);
+    else if (exe_ctx.GetThreadPtr() && exe_ctx.GetThreadPtr()->GetStackFrameAtIndex(0))
+        m_parser_vars->m_sym_ctx = exe_ctx.GetThreadPtr()->GetStackFrameAtIndex(0)->GetSymbolContext(lldb::eSymbolContextEverything);
+    else if (exe_ctx.GetProcessPtr())
+    {
+        m_parser_vars->m_sym_ctx.Clear(true);
+        m_parser_vars->m_sym_ctx.target_sp = exe_ctx.GetTargetSP();
+    }
+    else if (target)
+    {
+        m_parser_vars->m_sym_ctx.Clear(true);
+        m_parser_vars->m_sym_ctx.target_sp = exe_ctx.GetTargetSP();
+    }
+
+    if (target)
+    {
+        m_parser_vars->m_persistent_vars = llvm::cast<ClangPersistentVariables>(target->GetPersistentExpressionStateForLanguage(eLanguageTypeC));
+
+        if (!target->GetScratchClangASTContext())
+            return false;
+    }
+
+    m_parser_vars->m_target_info = GetTargetInfo();
+    m_parser_vars->m_materializer = materializer;
+
+    return true;
+}
+
+void
+ClangExpressionDeclMap::InstallCodeGenerator (clang::ASTConsumer *code_gen)
+{
+    assert(m_parser_vars);
+    m_parser_vars->m_code_gen = code_gen;
+}
+
+void
+ClangExpressionDeclMap::DidParse()
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (log)
+        ClangASTMetrics::DumpCounters(log);
+
+    if (m_parser_vars.get())
+    {
+        for (size_t entity_index = 0, num_entities = m_found_entities.GetSize();
+             entity_index < num_entities;
+             ++entity_index)
+        {
+            ExpressionVariableSP var_sp(m_found_entities.GetVariableAtIndex(entity_index));
+            if (var_sp)
+                llvm::cast<ClangExpressionVariable>(var_sp.get())->DisableParserVars(GetParserID());
+        }
+
+        for (size_t pvar_index = 0, num_pvars = m_parser_vars->m_persistent_vars->GetSize();
+             pvar_index < num_pvars;
+             ++pvar_index)
+        {
+            ExpressionVariableSP pvar_sp(m_parser_vars->m_persistent_vars->GetVariableAtIndex(pvar_index));
+            if (ClangExpressionVariable *clang_var = llvm::dyn_cast<ClangExpressionVariable>(pvar_sp.get()))
+                clang_var->DisableParserVars(GetParserID());
+        }
+
+        DisableParserVars();
+    }
+}
+
+// Interface for IRForTarget
+
+ClangExpressionDeclMap::TargetInfo
+ClangExpressionDeclMap::GetTargetInfo()
+{
+    assert (m_parser_vars.get());
+
+    TargetInfo ret;
+
+    ExecutionContext &exe_ctx = m_parser_vars->m_exe_ctx;
+
+    Process *process = exe_ctx.GetProcessPtr();
+    if (process)
+    {
+        ret.byte_order = process->GetByteOrder();
+        ret.address_byte_size = process->GetAddressByteSize();
+    }
+    else
+    {
+        Target *target = exe_ctx.GetTargetPtr();
+        if (target)
+        {
+            ret.byte_order = target->GetArchitecture().GetByteOrder();
+            ret.address_byte_size = target->GetArchitecture().GetAddressByteSize();
+        }
+    }
+
+    return ret;
+}
+
+bool
+ClangExpressionDeclMap::AddPersistentVariable
+(
+    const NamedDecl *decl,
+    const ConstString &name,
+    TypeFromParser parser_type,
+    bool is_result,
+    bool is_lvalue
+)
+{
+    assert (m_parser_vars.get());
+
+    ClangASTContext *ast = llvm::dyn_cast_or_null<ClangASTContext>(parser_type.GetTypeSystem());
+    if (ast == nullptr)
+        return false;
+
+    if (m_parser_vars->m_materializer && is_result)
+    {
+        Error err;
+
+        ExecutionContext &exe_ctx = m_parser_vars->m_exe_ctx;
+        Target *target = exe_ctx.GetTargetPtr();
+        if (target == nullptr)
+            return false;
+
+        ClangASTContext *context(target->GetScratchClangASTContext());
+
+        TypeFromUser user_type(m_ast_importer_sp->DeportType(context->getASTContext(),
+                                                             ast->getASTContext(),
+                                                             parser_type.GetOpaqueQualType()),
+                               context);
+        
+        uint32_t offset = m_parser_vars->m_materializer->AddResultVariable(user_type,
+                                                                           is_lvalue,
+                                                                           m_keep_result_in_memory,
+                                                                           m_result_delegate,
+                                                                           err);
+
+        ClangExpressionVariable *var = new ClangExpressionVariable(exe_ctx.GetBestExecutionContextScope(),
+                                                                   name,
+                                                                   user_type,
+                                                                   m_parser_vars->m_target_info.byte_order,
+                                                                   m_parser_vars->m_target_info.address_byte_size);
+
+        m_found_entities.AddNewlyConstructedVariable(var);
+        
+        var->EnableParserVars(GetParserID());
+
+        ClangExpressionVariable::ParserVars *parser_vars = var->GetParserVars(GetParserID());
+
+        parser_vars->m_named_decl = decl;
+        parser_vars->m_parser_type = parser_type;
+
+        var->EnableJITVars(GetParserID());
+
+        ClangExpressionVariable::JITVars *jit_vars = var->GetJITVars(GetParserID());
+
+        jit_vars->m_offset = offset;
+
+        return true;
+    }
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+    ExecutionContext &exe_ctx = m_parser_vars->m_exe_ctx;
+    Target *target = exe_ctx.GetTargetPtr();
+    if (target == NULL)
+        return false;
+
+    ClangASTContext *context(target->GetScratchClangASTContext());
+
+    TypeFromUser user_type(m_ast_importer_sp->DeportType(context->getASTContext(),
+                                                         ast->getASTContext(),
+                                                         parser_type.GetOpaqueQualType()),
+                           context);
+
+    if (!user_type.GetOpaqueQualType())
+    {
+        if (log)
+            log->Printf("Persistent variable's type wasn't copied successfully");
+        return false;
+    }
+
+    if (!m_parser_vars->m_target_info.IsValid())
+        return false;
+
+    ClangExpressionVariable *var = llvm::cast<ClangExpressionVariable>(m_parser_vars->m_persistent_vars->CreatePersistentVariable (exe_ctx.GetBestExecutionContextScope (),
+                                                                                                                                   name,
+                                                                                                                                   user_type,
+                                                                                                                                   m_parser_vars->m_target_info.byte_order,
+                                                                                                                                   m_parser_vars->m_target_info.address_byte_size).get());
+
+    if (!var)
+        return false;
+
+    var->m_frozen_sp->SetHasCompleteType();
+
+    if (is_result)
+        var->m_flags |= ClangExpressionVariable::EVNeedsFreezeDry;
+    else
+        var->m_flags |= ClangExpressionVariable::EVKeepInTarget; // explicitly-declared persistent variables should persist
+
+    if (is_lvalue)
+    {
+        var->m_flags |= ClangExpressionVariable::EVIsProgramReference;
+    }
+    else
+    {
+        var->m_flags |= ClangExpressionVariable::EVIsLLDBAllocated;
+        var->m_flags |= ClangExpressionVariable::EVNeedsAllocation;
+    }
+
+    if (m_keep_result_in_memory)
+    {
+        var->m_flags |= ClangExpressionVariable::EVKeepInTarget;
+    }
+
+    if (log)
+        log->Printf("Created persistent variable with flags 0x%hx", var->m_flags);
+
+    var->EnableParserVars(GetParserID());
+
+    ClangExpressionVariable::ParserVars *parser_vars = var->GetParserVars(GetParserID());
+
+    parser_vars->m_named_decl = decl;
+    parser_vars->m_parser_type = parser_type;
+
+    return true;
+}
+
+bool
+ClangExpressionDeclMap::AddValueToStruct
+(
+    const NamedDecl *decl,
+    const ConstString &name,
+    llvm::Value *value,
+    size_t size,
+    lldb::offset_t alignment
+)
+{
+    assert (m_struct_vars.get());
+    assert (m_parser_vars.get());
+
+    bool is_persistent_variable = false;
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    m_struct_vars->m_struct_laid_out = false;
+
+    if (ClangExpressionVariable::FindVariableInList(m_struct_members, decl, GetParserID()))
+        return true;
+
+    ClangExpressionVariable *var(ClangExpressionVariable::FindVariableInList(m_found_entities, decl, GetParserID()));
+
+    if (!var)
+    {
+        var = ClangExpressionVariable::FindVariableInList(*m_parser_vars->m_persistent_vars, decl, GetParserID());
+        is_persistent_variable = true;
+    }
+
+    if (!var)
+        return false;
+
+    if (log)
+        log->Printf("Adding value for (NamedDecl*)%p [%s - %s] to the structure",
+                    static_cast<const void*>(decl), name.GetCString(),
+                    var->GetName().GetCString());
+
+    // We know entity->m_parser_vars is valid because we used a parser variable
+    // to find it
+
+    ClangExpressionVariable::ParserVars *parser_vars = llvm::cast<ClangExpressionVariable>(var)->GetParserVars(GetParserID());
+
+    parser_vars->m_llvm_value = value;
+
+    if (ClangExpressionVariable::JITVars *jit_vars = llvm::cast<ClangExpressionVariable>(var)->GetJITVars(GetParserID()))
+    {
+        // We already laid this out; do not touch
+
+        if (log)
+            log->Printf("Already placed at 0x%llx", (unsigned long long)jit_vars->m_offset);
+    }
+
+    llvm::cast<ClangExpressionVariable>(var)->EnableJITVars(GetParserID());
+
+    ClangExpressionVariable::JITVars *jit_vars = llvm::cast<ClangExpressionVariable>(var)->GetJITVars(GetParserID());
+
+    jit_vars->m_alignment = alignment;
+    jit_vars->m_size = size;
+
+    m_struct_members.AddVariable(var->shared_from_this());
+
+    if (m_parser_vars->m_materializer)
+    {
+        uint32_t offset = 0;
+
+        Error err;
+
+        if (is_persistent_variable)
+        {
+            ExpressionVariableSP var_sp(var->shared_from_this());
+            offset = m_parser_vars->m_materializer->AddPersistentVariable(var_sp, nullptr, err);
+        }
+        else
+        {
+            if (const lldb_private::Symbol *sym = parser_vars->m_lldb_sym)
+                offset = m_parser_vars->m_materializer->AddSymbol(*sym, err);
+            else if (const RegisterInfo *reg_info = var->GetRegisterInfo())
+                offset = m_parser_vars->m_materializer->AddRegister(*reg_info, err);
+            else if (parser_vars->m_lldb_var)
+                offset = m_parser_vars->m_materializer->AddVariable(parser_vars->m_lldb_var, err);
+        }
+
+        if (!err.Success())
+            return false;
+
+        if (log)
+            log->Printf("Placed at 0x%llx", (unsigned long long)offset);
+
+        jit_vars->m_offset = offset; // TODO DoStructLayout() should not change this.
+    }
+
+    return true;
+}
+
+bool
+ClangExpressionDeclMap::DoStructLayout ()
+{
+    assert (m_struct_vars.get());
+
+    if (m_struct_vars->m_struct_laid_out)
+        return true;
+
+    if (!m_parser_vars->m_materializer)
+        return false;
+
+    m_struct_vars->m_struct_alignment = m_parser_vars->m_materializer->GetStructAlignment();
+    m_struct_vars->m_struct_size = m_parser_vars->m_materializer->GetStructByteSize();
+    m_struct_vars->m_struct_laid_out = true;
+    return true;
+}
+
+bool ClangExpressionDeclMap::GetStructInfo
+(
+    uint32_t &num_elements,
+    size_t &size,
+    lldb::offset_t &alignment
+)
+{
+    assert (m_struct_vars.get());
+
+    if (!m_struct_vars->m_struct_laid_out)
+        return false;
+
+    num_elements = m_struct_members.GetSize();
+    size = m_struct_vars->m_struct_size;
+    alignment = m_struct_vars->m_struct_alignment;
+
+    return true;
+}
+
+bool
+ClangExpressionDeclMap::GetStructElement
+(
+    const NamedDecl *&decl,
+    llvm::Value *&value,
+    lldb::offset_t &offset,
+    ConstString &name,
+    uint32_t index
+)
+{
+    assert (m_struct_vars.get());
+
+    if (!m_struct_vars->m_struct_laid_out)
+        return false;
+
+    if (index >= m_struct_members.GetSize())
+        return false;
+
+    ExpressionVariableSP member_sp(m_struct_members.GetVariableAtIndex(index));
+
+    if (!member_sp)
+        return false;
+
+    ClangExpressionVariable::ParserVars *parser_vars = llvm::cast<ClangExpressionVariable>(member_sp.get())->GetParserVars(GetParserID());
+    ClangExpressionVariable::JITVars *jit_vars = llvm::cast<ClangExpressionVariable>(member_sp.get())->GetJITVars(GetParserID());
+
+    if (!parser_vars ||
+        !jit_vars ||
+        !member_sp->GetValueObject())
+        return false;
+
+    decl = parser_vars->m_named_decl;
+    value = parser_vars->m_llvm_value;
+    offset = jit_vars->m_offset;
+    name = member_sp->GetName();
+
+    return true;
+}
+
+bool
+ClangExpressionDeclMap::GetFunctionInfo
+(
+    const NamedDecl *decl,
+    uint64_t &ptr
+)
+{
+    ClangExpressionVariable *entity(ClangExpressionVariable::FindVariableInList(m_found_entities, decl, GetParserID()));
+
+    if (!entity)
+        return false;
+
+    // We know m_parser_vars is valid since we searched for the variable by
+    // its NamedDecl
+
+    ClangExpressionVariable::ParserVars *parser_vars = entity->GetParserVars(GetParserID());
+
+    ptr = parser_vars->m_lldb_value.GetScalar().ULongLong();
+
+    return true;
+}
+
+static void
+FindCodeSymbolInContext
+(
+    const ConstString &name,
+    SymbolContext &sym_ctx,
+    uint32_t name_type_mask,
+    SymbolContextList &sc_list
+)
+{
+    sc_list.Clear();
+    SymbolContextList temp_sc_list;
+    if (sym_ctx.module_sp)
+        sym_ctx.module_sp->FindFunctions(name,
+                                         NULL,
+                                         name_type_mask,
+                                         true,  // include_symbols
+                                         false, // include_inlines
+                                         true,  // append
+                                         temp_sc_list);
+    if (temp_sc_list.GetSize() == 0)
+    {
+        if (sym_ctx.target_sp)
+            sym_ctx.target_sp->GetImages().FindFunctions(name,
+                                                         name_type_mask,
+                                                         true,  // include_symbols
+                                                         false, // include_inlines
+                                                         true,  // append
+                                                         temp_sc_list);
+    }
+
+    SymbolContextList internal_symbol_sc_list;
+    unsigned temp_sc_list_size = temp_sc_list.GetSize();
+    for (unsigned i = 0; i < temp_sc_list_size; i++)
+    {
+        SymbolContext sc;
+        temp_sc_list.GetContextAtIndex(i, sc);
+        if (sc.function)
+        {
+            sc_list.Append(sc);
+        }
+        else if (sc.symbol)
+        {
+            if (sc.symbol->IsExternal())
+            {
+                sc_list.Append(sc);
+            }
+            else
+            {
+                internal_symbol_sc_list.Append(sc);
+            }
+        }
+    }
+
+    // If we had internal symbols and we didn't find any external symbols or
+    // functions in debug info, then fallback to the internal symbols
+    if (sc_list.GetSize() == 0 && internal_symbol_sc_list.GetSize())
+    {
+        sc_list = internal_symbol_sc_list;
+    }
+}
+
+bool
+ClangExpressionDeclMap::GetFunctionAddress
+(
+    const ConstString &name,
+    uint64_t &func_addr
+)
+{
+    assert (m_parser_vars.get());
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+    ExecutionContext &exe_ctx = m_parser_vars->m_exe_ctx;
+    Target *target = exe_ctx.GetTargetPtr();
+    // Back out in all cases where we're not fully initialized
+    if (target == NULL)
+        return false;
+    if (!m_parser_vars->m_sym_ctx.target_sp)
+        return false;
+
+    SymbolContextList sc_list;
+
+    FindCodeSymbolInContext(name, m_parser_vars->m_sym_ctx, eFunctionNameTypeAuto, sc_list);
+
+    uint32_t sc_list_size = sc_list.GetSize();
+
+    if (sc_list_size == 0)
+    {
+        SymbolContext &sc = m_parser_vars->m_sym_ctx;
+        if (sc.comp_unit)
+        {
+            LanguageType lang_type = sc.comp_unit->GetLanguage();
+            if (Language::LanguageIsCPlusPlus(lang_type) &&
+                CPlusPlusLanguage::IsCPPMangledName(name.AsCString()))
+            {
+                // 1. Demangle the name
+                Mangled mangled(name, true);
+                ConstString demangled = mangled.GetDemangledName(lang_type);
+
+                if (demangled)
+                {
+                    FindCodeSymbolInContext(
+                        demangled, m_parser_vars->m_sym_ctx, eFunctionNameTypeFull, sc_list);
+                    sc_list_size = sc_list.GetSize();
+                }
+            }
+        }
+    }
+
+    if (sc_list_size == 0)
+    {
+        // We occasionally get debug information in which a const function is reported
+        // as non-const, so the mangled name is wrong.  This is a hack to compensate.
+
+        if (!strncmp(name.GetCString(), "_ZN", 3) &&
+            strncmp(name.GetCString(), "_ZNK", 4))
+        {
+            std::string fixed_scratch("_ZNK");
+            fixed_scratch.append(name.GetCString() + 3);
+            ConstString fixed_name(fixed_scratch.c_str());
+
+            if (log)
+                log->Printf("Failed to find symbols given non-const name %s; trying %s", name.GetCString(), fixed_name.GetCString());
+
+            FindCodeSymbolInContext(
+                fixed_name, m_parser_vars->m_sym_ctx, eFunctionNameTypeAuto, sc_list);
+            sc_list_size = sc_list.GetSize();
+        }
+    }
+
+    lldb::addr_t intern_callable_load_addr = LLDB_INVALID_ADDRESS;
+
+    for (uint32_t i=0; i<sc_list_size; ++i)
+    {
+        SymbolContext sym_ctx;
+        sc_list.GetContextAtIndex(i, sym_ctx);
+
+
+        lldb::addr_t callable_load_addr = LLDB_INVALID_ADDRESS;
+
+        if (sym_ctx.function)
+        {
+            const Address func_so_addr = sym_ctx.function->GetAddressRange().GetBaseAddress();
+            if (func_so_addr.IsValid())
+            {
+                callable_load_addr = func_so_addr.GetCallableLoadAddress(target, false);
+            }
+        }
+        else if (sym_ctx.symbol)
+        {
+            if (sym_ctx.symbol->IsExternal())
+                callable_load_addr = sym_ctx.symbol->ResolveCallableAddress(*target);
+            else
+            {
+                if (intern_callable_load_addr == LLDB_INVALID_ADDRESS)
+                    intern_callable_load_addr = sym_ctx.symbol->ResolveCallableAddress(*target);
+            }
+        }
+
+        if (callable_load_addr != LLDB_INVALID_ADDRESS)
+        {
+            func_addr = callable_load_addr;
+            return true;
+        }
+    }
+
+    // See if we found an internal symbol
+    if (intern_callable_load_addr != LLDB_INVALID_ADDRESS)
+    {
+        func_addr = intern_callable_load_addr;
+        return true;
+    }
+
+    return false;
+}
+
+addr_t
+ClangExpressionDeclMap::GetSymbolAddress (Target &target,
+                                          Process *process,
+                                          const ConstString &name,
+                                          lldb::SymbolType symbol_type,
+                                          lldb_private::Module *module)
+{
+    SymbolContextList sc_list;
+
+    if (module)
+        module->FindSymbolsWithNameAndType(name, symbol_type, sc_list);
+    else
+        target.GetImages().FindSymbolsWithNameAndType(name, symbol_type, sc_list);
+
+    const uint32_t num_matches = sc_list.GetSize();
+    addr_t symbol_load_addr = LLDB_INVALID_ADDRESS;
+
+    for (uint32_t i=0; i<num_matches && (symbol_load_addr == 0 || symbol_load_addr == LLDB_INVALID_ADDRESS); i++)
+    {
+        SymbolContext sym_ctx;
+        sc_list.GetContextAtIndex(i, sym_ctx);
+
+        const Address sym_address = sym_ctx.symbol->GetAddress();
+
+        if (!sym_address.IsValid())
+            continue;
+
+        switch (sym_ctx.symbol->GetType())
+        {
+            case eSymbolTypeCode:
+            case eSymbolTypeTrampoline:
+                symbol_load_addr = sym_address.GetCallableLoadAddress (&target);
+                break;
+
+            case eSymbolTypeResolver:
+                symbol_load_addr = sym_address.GetCallableLoadAddress (&target, true);
+                break;
+
+            case eSymbolTypeReExported:
+                {
+                    ConstString reexport_name = sym_ctx.symbol->GetReExportedSymbolName();
+                    if (reexport_name)
+                    {
+                        ModuleSP reexport_module_sp;
+                        ModuleSpec reexport_module_spec;
+                        reexport_module_spec.GetPlatformFileSpec() = sym_ctx.symbol->GetReExportedSymbolSharedLibrary();
+                        if (reexport_module_spec.GetPlatformFileSpec())
+                        {
+                            reexport_module_sp = target.GetImages().FindFirstModule(reexport_module_spec);
+                            if (!reexport_module_sp)
+                            {
+                                reexport_module_spec.GetPlatformFileSpec().GetDirectory().Clear();
+                                reexport_module_sp = target.GetImages().FindFirstModule(reexport_module_spec);
+                            }
+                        }
+                        symbol_load_addr = GetSymbolAddress(target, process, sym_ctx.symbol->GetReExportedSymbolName(), symbol_type, reexport_module_sp.get());
+                    }
+                }
+                break;
+
+            case eSymbolTypeData:
+            case eSymbolTypeRuntime:
+            case eSymbolTypeVariable:
+            case eSymbolTypeLocal:
+            case eSymbolTypeParam:
+            case eSymbolTypeInvalid:
+            case eSymbolTypeAbsolute:
+            case eSymbolTypeException:
+            case eSymbolTypeSourceFile:
+            case eSymbolTypeHeaderFile:
+            case eSymbolTypeObjectFile:
+            case eSymbolTypeCommonBlock:
+            case eSymbolTypeBlock:
+            case eSymbolTypeVariableType:
+            case eSymbolTypeLineEntry:
+            case eSymbolTypeLineHeader:
+            case eSymbolTypeScopeBegin:
+            case eSymbolTypeScopeEnd:
+            case eSymbolTypeAdditional:
+            case eSymbolTypeCompiler:
+            case eSymbolTypeInstrumentation:
+            case eSymbolTypeUndefined:
+            case eSymbolTypeObjCClass:
+            case eSymbolTypeObjCMetaClass:
+            case eSymbolTypeObjCIVar:
+                symbol_load_addr = sym_address.GetLoadAddress (&target);
+                break;
+        }
+    }
+
+    if (symbol_load_addr == LLDB_INVALID_ADDRESS && process)
+    {
+        ObjCLanguageRuntime *runtime = process->GetObjCLanguageRuntime();
+
+        if (runtime)
+        {
+            symbol_load_addr = runtime->LookupRuntimeSymbol(name);
+        }
+    }
+
+    return symbol_load_addr;
+}
+
+addr_t
+ClangExpressionDeclMap::GetSymbolAddress (const ConstString &name, lldb::SymbolType symbol_type)
+{
+    assert (m_parser_vars.get());
+
+    if (!m_parser_vars->m_exe_ctx.GetTargetPtr())
+        return false;
+
+    return GetSymbolAddress(m_parser_vars->m_exe_ctx.GetTargetRef(), m_parser_vars->m_exe_ctx.GetProcessPtr(), name, symbol_type);
+}
+
+const Symbol *
+ClangExpressionDeclMap::FindGlobalDataSymbol (Target &target,
+                                              const ConstString &name,
+                                              lldb_private::Module *module)
+{
+    SymbolContextList sc_list;
+
+    if (module)
+        module->FindSymbolsWithNameAndType(name, eSymbolTypeAny, sc_list);
+    else
+        target.GetImages().FindSymbolsWithNameAndType(name, eSymbolTypeAny, sc_list);
+
+    const uint32_t matches = sc_list.GetSize();
+    for (uint32_t i=0; i<matches; ++i)
+    {
+        SymbolContext sym_ctx;
+        sc_list.GetContextAtIndex(i, sym_ctx);
+        if (sym_ctx.symbol)
+        {
+            const Symbol *symbol = sym_ctx.symbol;
+            const Address sym_address = symbol->GetAddress();
+
+            if (sym_address.IsValid())
+            {
+                switch (symbol->GetType())
+                {
+                    case eSymbolTypeData:
+                    case eSymbolTypeRuntime:
+                    case eSymbolTypeAbsolute:
+                    case eSymbolTypeObjCClass:
+                    case eSymbolTypeObjCMetaClass:
+                    case eSymbolTypeObjCIVar:
+                        if (symbol->GetDemangledNameIsSynthesized())
+                        {
+                            // If the demangled name was synthesized, then don't use it
+                            // for expressions. Only let the symbol match if the mangled
+                            // named matches for these symbols.
+                            if (symbol->GetMangled().GetMangledName() != name)
+                                break;
+                        }
+                        return symbol;
+
+                    case eSymbolTypeReExported:
+                        {
+                            ConstString reexport_name = symbol->GetReExportedSymbolName();
+                            if (reexport_name)
+                            {
+                                ModuleSP reexport_module_sp;
+                                ModuleSpec reexport_module_spec;
+                                reexport_module_spec.GetPlatformFileSpec() = symbol->GetReExportedSymbolSharedLibrary();
+                                if (reexport_module_spec.GetPlatformFileSpec())
+                                {
+                                    reexport_module_sp = target.GetImages().FindFirstModule(reexport_module_spec);
+                                    if (!reexport_module_sp)
+                                    {
+                                        reexport_module_spec.GetPlatformFileSpec().GetDirectory().Clear();
+                                        reexport_module_sp = target.GetImages().FindFirstModule(reexport_module_spec);
+                                    }
+                                }
+                                // Don't allow us to try and resolve a re-exported symbol if it is the same
+                                // as the current symbol
+                                if (name == symbol->GetReExportedSymbolName() && module == reexport_module_sp.get())
+                                    return NULL;
+
+                                return FindGlobalDataSymbol(target, symbol->GetReExportedSymbolName(), reexport_module_sp.get());
+                            }
+                        }
+                        break;
+
+                    case eSymbolTypeCode: // We already lookup functions elsewhere
+                    case eSymbolTypeVariable:
+                    case eSymbolTypeLocal:
+                    case eSymbolTypeParam:
+                    case eSymbolTypeTrampoline:
+                    case eSymbolTypeInvalid:
+                    case eSymbolTypeException:
+                    case eSymbolTypeSourceFile:
+                    case eSymbolTypeHeaderFile:
+                    case eSymbolTypeObjectFile:
+                    case eSymbolTypeCommonBlock:
+                    case eSymbolTypeBlock:
+                    case eSymbolTypeVariableType:
+                    case eSymbolTypeLineEntry:
+                    case eSymbolTypeLineHeader:
+                    case eSymbolTypeScopeBegin:
+                    case eSymbolTypeScopeEnd:
+                    case eSymbolTypeAdditional:
+                    case eSymbolTypeCompiler:
+                    case eSymbolTypeInstrumentation:
+                    case eSymbolTypeUndefined:
+                    case eSymbolTypeResolver:
+                        break;
+                }
+            }
+        }
+    }
+
+    return NULL;
+}
+
+lldb::VariableSP
+ClangExpressionDeclMap::FindGlobalVariable
+(
+    Target &target,
+    ModuleSP &module,
+    const ConstString &name,
+    CompilerDeclContext *namespace_decl,
+    TypeFromUser *type
+)
+{
+    VariableList vars;
+
+    if (module && namespace_decl)
+        module->FindGlobalVariables (name, namespace_decl, true, -1, vars);
+    else
+        target.GetImages().FindGlobalVariables(name, true, -1, vars);
+
+    if (vars.GetSize())
+    {
+        if (type)
+        {
+            for (size_t i = 0; i < vars.GetSize(); ++i)
+            {
+                VariableSP var_sp = vars.GetVariableAtIndex(i);
+
+                if (ClangASTContext::AreTypesSame(*type, var_sp->GetType()->GetFullCompilerType ()))
+                    return var_sp;
+            }
+        }
+        else
+        {
+            return vars.GetVariableAtIndex(0);
+        }
+    }
+
+    return VariableSP();
+}
+
+// Interface for ClangASTSource
+
+void
+ClangExpressionDeclMap::FindExternalVisibleDecls (NameSearchContext &context)
+{
+    assert (m_ast_context);
+
+    ClangASTMetrics::RegisterVisibleQuery();
+
+    const ConstString name(context.m_decl_name.getAsString().c_str());
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (GetImportInProgress())
+    {
+        if (log && log->GetVerbose())
+            log->Printf("Ignoring a query during an import");
+        return;
+    }
+
+    static unsigned int invocation_id = 0;
+    unsigned int current_id = invocation_id++;
+
+    if (log)
+    {
+        if (!context.m_decl_context)
+            log->Printf("ClangExpressionDeclMap::FindExternalVisibleDecls[%u] for '%s' in a NULL DeclContext", current_id, name.GetCString());
+        else if (const NamedDecl *context_named_decl = dyn_cast<NamedDecl>(context.m_decl_context))
+            log->Printf("ClangExpressionDeclMap::FindExternalVisibleDecls[%u] for '%s' in '%s'", current_id, name.GetCString(), context_named_decl->getNameAsString().c_str());
+        else
+            log->Printf("ClangExpressionDeclMap::FindExternalVisibleDecls[%u] for '%s' in a '%s'", current_id, name.GetCString(), context.m_decl_context->getDeclKindName());
+    }
+
+    if (const NamespaceDecl *namespace_context = dyn_cast<NamespaceDecl>(context.m_decl_context))
+    {
+        ClangASTImporter::NamespaceMapSP namespace_map = m_ast_importer_sp->GetNamespaceMap(namespace_context);
+
+        if (log && log->GetVerbose())
+            log->Printf("  CEDM::FEVD[%u] Inspecting (NamespaceMap*)%p (%d entries)",
+                        current_id, static_cast<void*>(namespace_map.get()),
+                        (int)namespace_map->size());
+
+        if (!namespace_map)
+            return;
+
+        for (ClangASTImporter::NamespaceMap::iterator i = namespace_map->begin(), e = namespace_map->end();
+             i != e;
+             ++i)
+        {
+            if (log)
+                log->Printf("  CEDM::FEVD[%u] Searching namespace %s in module %s",
+                            current_id,
+                            i->second.GetName().AsCString(),
+                            i->first->GetFileSpec().GetFilename().GetCString());
+
+            FindExternalVisibleDecls(context,
+                                     i->first,
+                                     i->second,
+                                     current_id);
+        }
+    }
+    else if (isa<TranslationUnitDecl>(context.m_decl_context))
+    {
+        CompilerDeclContext namespace_decl;
+
+        if (log)
+            log->Printf("  CEDM::FEVD[%u] Searching the root namespace", current_id);
+
+        FindExternalVisibleDecls(context,
+                                 lldb::ModuleSP(),
+                                 namespace_decl,
+                                 current_id);
+    }
+
+    if (!context.m_found.variable)
+        ClangASTSource::FindExternalVisibleDecls(context);
+}
+
+void
+ClangExpressionDeclMap::FindExternalVisibleDecls (NameSearchContext &context,
+                                                  lldb::ModuleSP module_sp,
+                                                  CompilerDeclContext &namespace_decl,
+                                                  unsigned int current_id)
+{
+    assert (m_ast_context);
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    SymbolContextList sc_list;
+
+    const ConstString name(context.m_decl_name.getAsString().c_str());
+
+    const char *name_unique_cstr = name.GetCString();
+
+    if (name_unique_cstr == NULL)
+        return;
+
+    static ConstString id_name("id");
+    static ConstString Class_name("Class");
+
+    if (name == id_name || name == Class_name)
+        return;
+
+    // Only look for functions by name out in our symbols if the function
+    // doesn't start with our phony prefix of '$'
+    Target *target = m_parser_vars->m_exe_ctx.GetTargetPtr();
+    StackFrame *frame = m_parser_vars->m_exe_ctx.GetFramePtr();
+    SymbolContext sym_ctx;
+    if (frame != nullptr)
+        sym_ctx = frame->GetSymbolContext(lldb::eSymbolContextFunction|lldb::eSymbolContextBlock);
+    if (name_unique_cstr[0] == '$' && !namespace_decl)
+    {
+        static ConstString g_lldb_class_name ("$__lldb_class");
+
+        if (name == g_lldb_class_name)
+        {
+            // Clang is looking for the type of "this"
+
+            if (frame == NULL)
+                return;
+
+
+            // Find the block that defines the function represented by "sym_ctx"
+            Block *function_block = sym_ctx.GetFunctionBlock();
+
+            if (!function_block)
+                return;
+
+            CompilerDeclContext function_decl_ctx = function_block->GetDeclContext();
+
+            if (!function_decl_ctx)
+                return;
+
+            clang::CXXMethodDecl *method_decl = ClangASTContext::DeclContextGetAsCXXMethodDecl(function_decl_ctx);
+
+            if (method_decl)
+            {
+                clang::CXXRecordDecl *class_decl = method_decl->getParent();
+
+                QualType class_qual_type(class_decl->getTypeForDecl(), 0);
+
+                TypeFromUser class_user_type (class_qual_type.getAsOpaquePtr(),
+                                              ClangASTContext::GetASTContext(&class_decl->getASTContext()));
+
+                if (log)
+                {
+                    ASTDumper ast_dumper(class_qual_type);
+                    log->Printf("  CEDM::FEVD[%u] Adding type for $__lldb_class: %s", current_id, ast_dumper.GetCString());
+                }
+
+                AddThisType(context, class_user_type, current_id);
+
+                if (method_decl->isInstance())
+                {
+                    // self is a pointer to the object
+
+                    QualType class_pointer_type = method_decl->getASTContext().getPointerType(class_qual_type);
+
+                    TypeFromUser self_user_type(class_pointer_type.getAsOpaquePtr(),
+                                                ClangASTContext::GetASTContext(&method_decl->getASTContext()));
+
+                    m_struct_vars->m_object_pointer_type = self_user_type;
+                }
+            }
+            else
+            {
+                // This branch will get hit if we are executing code in the context of a function that
+                // claims to have an object pointer (through DW_AT_object_pointer?) but is not formally a
+                // method of the class.  In that case, just look up the "this" variable in the current
+                // scope and use its type.
+                // FIXME: This code is formally correct, but clang doesn't currently emit DW_AT_object_pointer
+                // for C++ so it hasn't actually been tested.
+
+                VariableList *vars = frame->GetVariableList(false);
+
+                lldb::VariableSP this_var = vars->FindVariable(ConstString("this"));
+
+                if (this_var &&
+                    this_var->IsInScope(frame) &&
+                    this_var->LocationIsValidForFrame (frame))
+                {
+                    Type *this_type = this_var->GetType();
+
+                    if (!this_type)
+                        return;
+
+                    TypeFromUser pointee_type = this_type->GetForwardCompilerType ().GetPointeeType();
+
+                    if (pointee_type.IsValid())
+                    {
+                        if (log)
+                        {
+                            ASTDumper ast_dumper(pointee_type);
+                            log->Printf("  FEVD[%u] Adding type for $__lldb_class: %s", current_id, ast_dumper.GetCString());
+                        }
+                        
+                        AddThisType(context, pointee_type, current_id);
+                        TypeFromUser this_user_type(this_type->GetFullCompilerType ());
+                        m_struct_vars->m_object_pointer_type = this_user_type;
+                        return;
+                    }
+                }
+            }
+
+            return;
+        }
+
+        static ConstString g_lldb_objc_class_name ("$__lldb_objc_class");
+        if (name == g_lldb_objc_class_name)
+        {
+            // Clang is looking for the type of "*self"
+
+            if (!frame)
+                return;
+
+            SymbolContext sym_ctx = frame->GetSymbolContext(lldb::eSymbolContextFunction|lldb::eSymbolContextBlock);
+
+            // Find the block that defines the function represented by "sym_ctx"
+            Block *function_block = sym_ctx.GetFunctionBlock();
+
+            if (!function_block)
+                return;
+
+            CompilerDeclContext function_decl_ctx = function_block->GetDeclContext();
+
+            if (!function_decl_ctx)
+                return;
+
+            clang::ObjCMethodDecl *method_decl = ClangASTContext::DeclContextGetAsObjCMethodDecl(function_decl_ctx);
+
+            if (method_decl)
+            {
+                ObjCInterfaceDecl* self_interface = method_decl->getClassInterface();
+
+                if (!self_interface)
+                    return;
+
+                const clang::Type *interface_type = self_interface->getTypeForDecl();
+
+                if (!interface_type)
+                    return; // This is unlikely, but we have seen crashes where this occurred
+
+                TypeFromUser class_user_type(QualType(interface_type, 0).getAsOpaquePtr(),
+                                             ClangASTContext::GetASTContext(&method_decl->getASTContext()));
+
+                if (log)
+                {
+                    ASTDumper ast_dumper(interface_type);
+                    log->Printf("  FEVD[%u] Adding type for $__lldb_objc_class: %s", current_id, ast_dumper.GetCString());
+                }
+
+                AddOneType(context, class_user_type, current_id);
+
+                if (method_decl->isInstanceMethod())
+                {
+                    // self is a pointer to the object
+
+                    QualType class_pointer_type = method_decl->getASTContext().getObjCObjectPointerType(QualType(interface_type, 0));
+
+                    TypeFromUser self_user_type(class_pointer_type.getAsOpaquePtr(),
+                                                ClangASTContext::GetASTContext(&method_decl->getASTContext()));
+
+                    m_struct_vars->m_object_pointer_type = self_user_type;
+                }
+                else
+                {
+                    // self is a Class pointer
+                    QualType class_type = method_decl->getASTContext().getObjCClassType();
+
+                    TypeFromUser self_user_type(class_type.getAsOpaquePtr(),
+                                                ClangASTContext::GetASTContext(&method_decl->getASTContext()));
+
+                    m_struct_vars->m_object_pointer_type = self_user_type;
+                }
+
+                return;
+            }
+            else
+            {
+                // This branch will get hit if we are executing code in the context of a function that
+                // claims to have an object pointer (through DW_AT_object_pointer?) but is not formally a
+                // method of the class.  In that case, just look up the "self" variable in the current
+                // scope and use its type.
+
+                VariableList *vars = frame->GetVariableList(false);
+
+                lldb::VariableSP self_var = vars->FindVariable(ConstString("self"));
+
+                if (self_var &&
+                    self_var->IsInScope(frame) &&
+                    self_var->LocationIsValidForFrame (frame))
+                {
+                    Type *self_type = self_var->GetType();
+
+                    if (!self_type)
+                        return;
+
+                    CompilerType self_clang_type = self_type->GetFullCompilerType ();
+
+                    if (ClangASTContext::IsObjCClassType(self_clang_type))
+                    {
+                        return;
+                    }
+                    else if (ClangASTContext::IsObjCObjectPointerType(self_clang_type))
+                    {
+                        self_clang_type = self_clang_type.GetPointeeType();
+
+                        if (!self_clang_type)
+                            return;
+
+                        if (log)
+                        {
+                            ASTDumper ast_dumper(self_type->GetFullCompilerType ());
+                            log->Printf("  FEVD[%u] Adding type for $__lldb_objc_class: %s", current_id, ast_dumper.GetCString());
+                        }
+
+                        TypeFromUser class_user_type (self_clang_type);
+
+                        AddOneType(context, class_user_type, current_id);
+
+                        TypeFromUser self_user_type(self_type->GetFullCompilerType ());
+
+                        m_struct_vars->m_object_pointer_type = self_user_type;
+                        return;
+                    }
+                }
+            }
+
+            return;
+        }
+
+        // any other $__lldb names should be weeded out now
+        if (!::strncmp(name_unique_cstr, "$__lldb", sizeof("$__lldb") - 1))
+            return;
+
+        do
+        {
+            if (!target)
+                break;
+
+            ClangASTContext *scratch_clang_ast_context = target->GetScratchClangASTContext();
+
+            if (!scratch_clang_ast_context)
+                break;
+
+            ASTContext *scratch_ast_context = scratch_clang_ast_context->getASTContext();
+
+            if (!scratch_ast_context)
+                break;
+
+            TypeDecl *ptype_type_decl = m_parser_vars->m_persistent_vars->GetPersistentType(name);
+
+            if (!ptype_type_decl)
+                break;
+
+            Decl *parser_ptype_decl = m_ast_importer_sp->CopyDecl(m_ast_context, scratch_ast_context, ptype_type_decl);
+
+            if (!parser_ptype_decl)
+                break;
+
+            TypeDecl *parser_ptype_type_decl = dyn_cast<TypeDecl>(parser_ptype_decl);
+
+            if (!parser_ptype_type_decl)
+                break;
+
+            if (log)
+                log->Printf("  CEDM::FEVD[%u] Found persistent type %s", current_id, name.GetCString());
+
+            context.AddNamedDecl(parser_ptype_type_decl);
+        } while (0);
+
+        ExpressionVariableSP pvar_sp(m_parser_vars->m_persistent_vars->GetVariable(name));
+
+        if (pvar_sp)
+        {
+            AddOneVariable(context, pvar_sp, current_id);
+            return;
+        }
+
+        const char *reg_name(&name.GetCString()[1]);
+
+        if (m_parser_vars->m_exe_ctx.GetRegisterContext())
+        {
+            const RegisterInfo *reg_info(m_parser_vars->m_exe_ctx.GetRegisterContext()->GetRegisterInfoByName(reg_name));
+
+            if (reg_info)
+            {
+                if (log)
+                    log->Printf("  CEDM::FEVD[%u] Found register %s", current_id, reg_info->name);
+
+                AddOneRegister(context, reg_info, current_id);
+            }
+        }
+    }
+    else
+    {
+        ValueObjectSP valobj;
+        VariableSP var;
+
+        if (frame && !namespace_decl)
+        {
+            CompilerDeclContext compiler_decl_context = sym_ctx.block != nullptr ? sym_ctx.block->GetDeclContext() : CompilerDeclContext();
+
+            if (compiler_decl_context)
+            {
+                // Make sure that the variables are parsed so that we have the declarations
+                VariableListSP vars = frame->GetInScopeVariableList(true);
+                for (size_t i = 0; i < vars->GetSize(); i++)
+                    vars->GetVariableAtIndex(i)->GetDecl();
+
+                // Search for declarations matching the name
+                std::vector<CompilerDecl> found_decls = compiler_decl_context.FindDeclByName(name);
+                
+                bool variable_found = false;
+                for (CompilerDecl decl : found_decls)
+                {
+                    var = decl.GetAsVariable();
+                    if (var)
+                    {
+                        variable_found = true;
+                        valobj = ValueObjectVariable::Create(frame, var);
+                        AddOneVariable(context, var, valobj, current_id);
+                        context.m_found.variable = true;
+                    }
+                }
+                if (variable_found)
+                    return;
+            }
+        }
+        if (target)
+        {
+            var = FindGlobalVariable (*target,
+                                      module_sp,
+                                      name,
+                                      &namespace_decl,
+                                      NULL);
+
+            if (var)
+            {
+                valobj = ValueObjectVariable::Create(target, var);
+                AddOneVariable(context, var, valobj, current_id);
+                context.m_found.variable = true;
+                return;
+            }
+        }
+        
+        std::vector<clang::NamedDecl *> decls_from_modules;
+        
+        if (target)
+        {
+            if (ClangModulesDeclVendor *decl_vendor = target->GetClangModulesDeclVendor())
+            {
+                decl_vendor->FindDecls(name, false, UINT32_MAX, decls_from_modules);
+            }
+        }
+
+        if (!context.m_found.variable)
+        {
+            const bool include_inlines = false;
+            const bool append = false;
+
+            if (namespace_decl && module_sp)
+            {
+                const bool include_symbols = false;
+
+                module_sp->FindFunctions(name,
+                                         &namespace_decl,
+                                         eFunctionNameTypeBase,
+                                         include_symbols,
+                                         include_inlines,
+                                         append,
+                                         sc_list);
+            }
+            else if (target && !namespace_decl)
+            {
+                const bool include_symbols = true;
+
+                // TODO Fix FindFunctions so that it doesn't return
+                //   instance methods for eFunctionNameTypeBase.
+
+                target->GetImages().FindFunctions(name,
+                                                  eFunctionNameTypeFull,
+                                                  include_symbols,
+                                                  include_inlines,
+                                                  append,
+                                                  sc_list);
+            }
+
+            // If we found more than one function, see if we can use the
+            // frame's decl context to remove functions that are shadowed
+            // by other functions which match in type but are nearer in scope.
+            //
+            // AddOneFunction will not add a function whose type has already been
+            // added, so if there's another function in the list with a matching
+            // type, check to see if their decl context is a parent of the current
+            // frame's or was imported via a and using statement, and pick the
+            // best match according to lookup rules.
+            if (sc_list.GetSize() > 1)
+            {
+                // Collect some info about our frame's context.
+                StackFrame *frame = m_parser_vars->m_exe_ctx.GetFramePtr();
+                SymbolContext frame_sym_ctx;
+                if (frame != nullptr)
+                    frame_sym_ctx = frame->GetSymbolContext(lldb::eSymbolContextFunction|lldb::eSymbolContextBlock);
+                CompilerDeclContext frame_decl_context = frame_sym_ctx.block != nullptr ? frame_sym_ctx.block->GetDeclContext() : CompilerDeclContext();
+
+                // We can't do this without a compiler decl context for our frame.
+                if (frame_decl_context)
+                {
+                    clang::DeclContext *frame_decl_ctx = (clang::DeclContext *)frame_decl_context.GetOpaqueDeclContext();
+                    ClangASTContext *ast = llvm::dyn_cast_or_null<ClangASTContext>(frame_decl_context.GetTypeSystem());
+
+                    // Structure to hold the info needed when comparing function
+                    // declarations.
+                    struct FuncDeclInfo
+                    {
+                        ConstString m_name;
+                        CompilerType m_copied_type;
+                        uint32_t m_decl_lvl;
+                        SymbolContext m_sym_ctx;
+                    };
+
+                    // First, symplify things by looping through the symbol contexts
+                    // to remove unwanted functions and separate out the functions we
+                    // want to compare and prune into a separate list.
+                    // Cache the info needed about the function declarations in a
+                    // vector for efficiency.
+                    SymbolContextList sc_sym_list;
+                    uint32_t num_indices = sc_list.GetSize();
+                    std::vector<FuncDeclInfo> fdi_cache;
+                    fdi_cache.reserve(num_indices);
+                    for (uint32_t index = 0; index < num_indices; ++index)
+                    {
+                        FuncDeclInfo fdi;
+                        SymbolContext sym_ctx;
+                        sc_list.GetContextAtIndex(index, sym_ctx);
+
+                        // We don't know enough about symbols to compare them,
+                        // but we should keep them in the list.
+                        Function *function = sym_ctx.function;
+                        if (!function)
+                        {
+                            sc_sym_list.Append(sym_ctx);
+                            continue;
+                        }
+                        // Filter out functions without declaration contexts, as well as
+                        // class/instance methods, since they'll be skipped in the
+                        // code that follows anyway.
+                        CompilerDeclContext func_decl_context = function->GetDeclContext();
+                        if (!func_decl_context || func_decl_context.IsClassMethod(nullptr, nullptr, nullptr))
+                            continue;
+                        // We can only prune functions for which we can copy the type.
+                        CompilerType func_clang_type = function->GetType()->GetFullCompilerType();
+                        CompilerType copied_func_type = GuardedCopyType(func_clang_type);
+                        if (!copied_func_type)
+                        {
+                            sc_sym_list.Append(sym_ctx);
+                            continue;
+                        }
+
+                        fdi.m_sym_ctx = sym_ctx;
+                        fdi.m_name = function->GetName();
+                        fdi.m_copied_type = copied_func_type;
+                        fdi.m_decl_lvl = LLDB_INVALID_DECL_LEVEL;
+                        if (fdi.m_copied_type && func_decl_context)
+                        {
+                            // Call CountDeclLevels to get the number of parent scopes we
+                            // have to look through before we find the function declaration.
+                            // When comparing functions of the same type, the one with a
+                            // lower count will be closer to us in the lookup scope and
+                            // shadows the other.
+                            clang::DeclContext *func_decl_ctx = (clang::DeclContext *)func_decl_context.GetOpaqueDeclContext();
+                            fdi.m_decl_lvl = ast->CountDeclLevels(frame_decl_ctx,
+                                                                  func_decl_ctx,
+                                                                  &fdi.m_name,
+                                                                  &fdi.m_copied_type);
+                        }
+                        fdi_cache.emplace_back(fdi);
+                    }
+
+                    // Loop through the functions in our cache looking for matching types,
+                    // then compare their scope levels to see which is closer.
+                    std::multimap<CompilerType, const FuncDeclInfo*> matches;
+                    for (const FuncDeclInfo &fdi : fdi_cache)
+                    {
+                        const CompilerType t = fdi.m_copied_type;
+                        auto q = matches.find(t);
+                        if (q != matches.end())
+                        {
+                            if (q->second->m_decl_lvl > fdi.m_decl_lvl)
+                                // This function is closer; remove the old set.
+                                matches.erase(t);
+                            else if (q->second->m_decl_lvl < fdi.m_decl_lvl)
+                                // The functions in our set are closer - skip this one.
+                                continue;
+                        }
+                        matches.insert(std::make_pair(t, &fdi));
+                    }
+
+                    // Loop through our matches and add their symbol contexts to our list.
+                    SymbolContextList sc_func_list;
+                    for (const auto &q : matches)
+                        sc_func_list.Append(q.second->m_sym_ctx);
+
+                    // Rejoin the lists with the functions in front.
+                    sc_list = sc_func_list;
+                    sc_list.Append(sc_sym_list);
+                }
+            }
+
+            if (sc_list.GetSize())
+            {
+                Symbol *extern_symbol = NULL;
+                Symbol *non_extern_symbol = NULL;
+
+                for (uint32_t index = 0, num_indices = sc_list.GetSize();
+                     index < num_indices;
+                     ++index)
+                {
+                    SymbolContext sym_ctx;
+                    sc_list.GetContextAtIndex(index, sym_ctx);
+
+                    if (sym_ctx.function)
+                    {
+                        CompilerDeclContext decl_ctx = sym_ctx.function->GetDeclContext();
+
+                        if (!decl_ctx)
+                            continue;
+
+                        // Filter out class/instance methods.
+                        if (decl_ctx.IsClassMethod(nullptr, nullptr, nullptr))
+                            continue;
+
+                        AddOneFunction(context, sym_ctx.function, NULL, current_id);
+                        context.m_found.function_with_type_info = true;
+                        context.m_found.function = true;
+                    }
+                    else if (sym_ctx.symbol)
+                    {
+                        if (sym_ctx.symbol->GetType() == eSymbolTypeReExported && target)
+                        {
+                            sym_ctx.symbol = sym_ctx.symbol->ResolveReExportedSymbol(*target);
+                            if (sym_ctx.symbol == NULL)
+                                continue;
+                        }
+
+                        if (sym_ctx.symbol->IsExternal())
+                            extern_symbol = sym_ctx.symbol;
+                        else
+                            non_extern_symbol = sym_ctx.symbol;
+                    }
+                }
+                
+                if (!context.m_found.function_with_type_info)
+                {
+                    for (clang::NamedDecl *decl : decls_from_modules)
+                    {
+                        if (llvm::isa<clang::FunctionDecl>(decl))
+                        {
+                            clang::NamedDecl *copied_decl = llvm::cast<FunctionDecl>(m_ast_importer_sp->CopyDecl(m_ast_context, &decl->getASTContext(), decl));
+                            context.AddNamedDecl(copied_decl);
+                            context.m_found.function_with_type_info = true;
+                        }
+                    }
+                }
+
+                if (!context.m_found.function_with_type_info)
+                {
+                    if (extern_symbol)
+                    {
+                        AddOneFunction (context, NULL, extern_symbol, current_id);
+                        context.m_found.function = true;
+                    }
+                    else if (non_extern_symbol)
+                    {
+                        AddOneFunction (context, NULL, non_extern_symbol, current_id);
+                        context.m_found.function = true;
+                    }
+                }
+            }
+            
+            if (!context.m_found.function_with_type_info)
+            {
+                // Try the modules next.
+                
+                do
+                {
+                    if (ClangModulesDeclVendor *modules_decl_vendor = m_target->GetClangModulesDeclVendor())
+                    {
+                        bool append = false;
+                        uint32_t max_matches = 1;
+                        std::vector <clang::NamedDecl *> decls;
+                        
+                        if (!modules_decl_vendor->FindDecls(name,
+                                                            append,
+                                                            max_matches,
+                                                            decls))
+                            break;
+                        
+                        clang::NamedDecl *const decl_from_modules = decls[0];
+                        
+                        if (llvm::isa<clang::FunctionDecl>(decl_from_modules))
+                        {
+                            if (log)
+                            {
+                                log->Printf("  CAS::FEVD[%u] Matching function found for \"%s\" in the modules",
+                                            current_id,
+                                            name.GetCString());
+                            }
+                            
+                            clang::Decl *copied_decl = m_ast_importer_sp->CopyDecl(m_ast_context, &decl_from_modules->getASTContext(), decl_from_modules);
+                            clang::FunctionDecl *copied_function_decl = copied_decl ? dyn_cast<clang::FunctionDecl>(copied_decl) : nullptr;
+                            
+                            if (!copied_function_decl)
+                            {
+                                if (log)
+                                    log->Printf("  CAS::FEVD[%u] - Couldn't export a function declaration from the modules",
+                                                current_id);
+                                
+                                break;
+                            }
+                            
+                            if (copied_function_decl->getBody() && m_parser_vars->m_code_gen)
+                            {
+                                DeclGroupRef decl_group_ref(copied_function_decl);
+                                m_parser_vars->m_code_gen->HandleTopLevelDecl(decl_group_ref);
+                            }
+                            
+                            context.AddNamedDecl(copied_function_decl);
+                            
+                            context.m_found.function_with_type_info = true;
+                            context.m_found.function = true;
+                        }
+                        else if (llvm::isa<clang::VarDecl>(decl_from_modules))
+                        {
+                            if (log)
+                            {
+                                log->Printf("  CAS::FEVD[%u] Matching variable found for \"%s\" in the modules",
+                                            current_id,
+                                            name.GetCString());
+                            }
+                            
+                            clang::Decl *copied_decl = m_ast_importer_sp->CopyDecl(m_ast_context, &decl_from_modules->getASTContext(), decl_from_modules);
+                            clang::VarDecl *copied_var_decl = copied_decl ? dyn_cast_or_null<clang::VarDecl>(copied_decl) : nullptr;
+                            
+                            if (!copied_var_decl)
+                            {
+                                if (log)
+                                    log->Printf("  CAS::FEVD[%u] - Couldn't export a variable declaration from the modules",
+                                                current_id);
+                                
+                                break;
+                            }
+                            
+                            context.AddNamedDecl(copied_var_decl);
+                            
+                            context.m_found.variable = true;
+                        }
+                    }
+                } while (0);
+            }
+
+            if (target && !context.m_found.variable && !namespace_decl)
+            {
+                // We couldn't find a non-symbol variable for this.  Now we'll hunt for a generic
+                // data symbol, and -- if it is found -- treat it as a variable.
+
+                const Symbol *data_symbol = FindGlobalDataSymbol(*target, name);
+
+                if (data_symbol)
+                {
+                    std::string warning("got name from symbols: ");
+                    warning.append(name.AsCString());
+                    const unsigned diag_id = m_ast_context->getDiagnostics().getCustomDiagID(clang::DiagnosticsEngine::Level::Warning, "%0");
+                    m_ast_context->getDiagnostics().Report(diag_id) << warning.c_str();
+                    AddOneGenericVariable(context, *data_symbol, current_id);
+                    context.m_found.variable = true;
+                }
+            }
+        }
+    }
+}
+
+//static opaque_compiler_type_t
+//MaybePromoteToBlockPointerType
+//(
+//    ASTContext *ast_context,
+//    opaque_compiler_type_t candidate_type
+//)
+//{
+//    if (!candidate_type)
+//        return candidate_type;
+//
+//    QualType candidate_qual_type = QualType::getFromOpaquePtr(candidate_type);
+//
+//    const PointerType *candidate_pointer_type = dyn_cast<PointerType>(candidate_qual_type);
+//
+//    if (!candidate_pointer_type)
+//        return candidate_type;
+//
+//    QualType pointee_qual_type = candidate_pointer_type->getPointeeType();
+//
+//    const RecordType *pointee_record_type = dyn_cast<RecordType>(pointee_qual_type);
+//
+//    if (!pointee_record_type)
+//        return candidate_type;
+//
+//    RecordDecl *pointee_record_decl = pointee_record_type->getDecl();
+//
+//    if (!pointee_record_decl->isRecord())
+//        return candidate_type;
+//
+//    if (!pointee_record_decl->getName().startswith(llvm::StringRef("__block_literal_")))
+//        return candidate_type;
+//
+//    QualType generic_function_type = ast_context->getFunctionNoProtoType(ast_context->UnknownAnyTy);
+//    QualType block_pointer_type = ast_context->getBlockPointerType(generic_function_type);
+//
+//    return block_pointer_type.getAsOpaquePtr();
+//}
+
+bool
+ClangExpressionDeclMap::GetVariableValue (VariableSP &var,
+                                          lldb_private::Value &var_location,
+                                          TypeFromUser *user_type,
+                                          TypeFromParser *parser_type)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    Type *var_type = var->GetType();
+
+    if (!var_type)
+    {
+        if (log)
+            log->PutCString("Skipped a definition because it has no type");
+        return false;
+    }
+
+    CompilerType var_clang_type = var_type->GetFullCompilerType ();
+
+    if (!var_clang_type)
+    {
+        if (log)
+            log->PutCString("Skipped a definition because it has no Clang type");
+        return false;
+    }
+
+    ClangASTContext *clang_ast = llvm::dyn_cast_or_null<ClangASTContext>(var_type->GetForwardCompilerType().GetTypeSystem());
+
+    if (!clang_ast)
+    {
+        if (log)
+            log->PutCString("Skipped a definition because it has no Clang AST");
+        return false;
+    }
+
+
+    ASTContext *ast = clang_ast->getASTContext();
+
+    if (!ast)
+    {
+        if (log)
+            log->PutCString("There is no AST context for the current execution context");
+        return false;
+    }
+    //var_clang_type = MaybePromoteToBlockPointerType (ast, var_clang_type);
+
+    DWARFExpression &var_location_expr = var->LocationExpression();
+
+    Target *target = m_parser_vars->m_exe_ctx.GetTargetPtr();
+    Error err;
+
+    if (var->GetLocationIsConstantValueData())
+    {
+        DataExtractor const_value_extractor;
+
+        if (var_location_expr.GetExpressionData(const_value_extractor))
+        {
+            var_location = Value(const_value_extractor.GetDataStart(), const_value_extractor.GetByteSize());
+            var_location.SetValueType(Value::eValueTypeHostAddress);
+        }
+        else
+        {
+            if (log)
+                log->Printf("Error evaluating constant variable: %s", err.AsCString());
+            return false;
+        }
+    }
+
+    CompilerType type_to_use = GuardedCopyType(var_clang_type);
+
+    if (!type_to_use)
+    {
+        if (log)
+            log->Printf("Couldn't copy a variable's type into the parser's AST context");
+
+        return false;
+    }
+
+    if (parser_type)
+        *parser_type = TypeFromParser(type_to_use);
+
+    if (var_location.GetContextType() == Value::eContextTypeInvalid)
+        var_location.SetCompilerType(type_to_use);
+
+    if (var_location.GetValueType() == Value::eValueTypeFileAddress)
+    {
+        SymbolContext var_sc;
+        var->CalculateSymbolContext(&var_sc);
+
+        if (!var_sc.module_sp)
+            return false;
+
+        Address so_addr(var_location.GetScalar().ULongLong(), var_sc.module_sp->GetSectionList());
+
+        lldb::addr_t load_addr = so_addr.GetLoadAddress(target);
+
+        if (load_addr != LLDB_INVALID_ADDRESS)
+        {
+            var_location.GetScalar() = load_addr;
+            var_location.SetValueType(Value::eValueTypeLoadAddress);
+        }
+    }
+
+    if (user_type)
+        *user_type = TypeFromUser(var_clang_type);
+
+    return true;
+}
+
+void
+ClangExpressionDeclMap::AddOneVariable (NameSearchContext &context, VariableSP var, ValueObjectSP valobj, unsigned int current_id)
+{
+    assert (m_parser_vars.get());
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    TypeFromUser ut;
+    TypeFromParser pt;
+    Value var_location;
+
+    if (!GetVariableValue (var, var_location, &ut, &pt))
+        return;
+
+    clang::QualType parser_opaque_type = QualType::getFromOpaquePtr(pt.GetOpaqueQualType());
+
+    if (parser_opaque_type.isNull())
+        return;
+
+    if (const clang::Type *parser_type = parser_opaque_type.getTypePtr())
+    {
+        if (const TagType *tag_type = dyn_cast<TagType>(parser_type))
+            CompleteType(tag_type->getDecl());
+        if (const ObjCObjectPointerType *objc_object_ptr_type = dyn_cast<ObjCObjectPointerType>(parser_type))
+            CompleteType(objc_object_ptr_type->getInterfaceDecl());
+    }
+
+
+    bool is_reference = pt.IsReferenceType();
+
+    NamedDecl *var_decl = NULL;
+    if (is_reference)
+        var_decl = context.AddVarDecl(pt);
+    else
+        var_decl = context.AddVarDecl(pt.GetLValueReferenceType());
+
+    std::string decl_name(context.m_decl_name.getAsString());
+    ConstString entity_name(decl_name.c_str());
+    ClangExpressionVariable *entity(new ClangExpressionVariable(valobj));
+    m_found_entities.AddNewlyConstructedVariable(entity);
+
+    assert (entity);
+    entity->EnableParserVars(GetParserID());
+    ClangExpressionVariable::ParserVars *parser_vars = entity->GetParserVars(GetParserID());
+    parser_vars->m_parser_type = pt;
+    parser_vars->m_named_decl  = var_decl;
+    parser_vars->m_llvm_value  = NULL;
+    parser_vars->m_lldb_value  = var_location;
+    parser_vars->m_lldb_var    = var;
+
+    if (is_reference)
+        entity->m_flags |= ClangExpressionVariable::EVTypeIsReference;
+
+    if (log)
+    {
+        ASTDumper orig_dumper(ut.GetOpaqueQualType());
+        ASTDumper ast_dumper(var_decl);
+        log->Printf("  CEDM::FEVD[%u] Found variable %s, returned %s (original %s)", current_id, decl_name.c_str(), ast_dumper.GetCString(), orig_dumper.GetCString());
+    }
+}
+
+void
+ClangExpressionDeclMap::AddOneVariable(NameSearchContext &context,
+                                       ExpressionVariableSP &pvar_sp,
+                                       unsigned int current_id)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    TypeFromUser user_type (llvm::cast<ClangExpressionVariable>(pvar_sp.get())->GetTypeFromUser());
+
+    TypeFromParser parser_type (GuardedCopyType(user_type));
+
+    if (!parser_type.GetOpaqueQualType())
+    {
+        if (log)
+            log->Printf("  CEDM::FEVD[%u] Couldn't import type for pvar %s", current_id, pvar_sp->GetName().GetCString());
+        return;
+    }
+
+    NamedDecl *var_decl = context.AddVarDecl(parser_type.GetLValueReferenceType());
+
+    llvm::cast<ClangExpressionVariable>(pvar_sp.get())->EnableParserVars(GetParserID());
+    ClangExpressionVariable::ParserVars *parser_vars = llvm::cast<ClangExpressionVariable>(pvar_sp.get())->GetParserVars(GetParserID());
+    parser_vars->m_parser_type = parser_type;
+    parser_vars->m_named_decl = var_decl;
+    parser_vars->m_llvm_value = NULL;
+    parser_vars->m_lldb_value.Clear();
+
+    if (log)
+    {
+        ASTDumper ast_dumper(var_decl);
+        log->Printf("  CEDM::FEVD[%u] Added pvar %s, returned %s", current_id, pvar_sp->GetName().GetCString(), ast_dumper.GetCString());
+    }
+}
+
+void
+ClangExpressionDeclMap::AddOneGenericVariable(NameSearchContext &context,
+                                              const Symbol &symbol,
+                                              unsigned int current_id)
+{
+    assert(m_parser_vars.get());
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    Target *target = m_parser_vars->m_exe_ctx.GetTargetPtr();
+
+    if (target == NULL)
+        return;
+
+    ASTContext *scratch_ast_context = target->GetScratchClangASTContext()->getASTContext();
+
+    TypeFromUser user_type (ClangASTContext::GetBasicType(scratch_ast_context, eBasicTypeVoid).GetPointerType().GetLValueReferenceType());
+    TypeFromParser parser_type (ClangASTContext::GetBasicType(m_ast_context, eBasicTypeVoid).GetPointerType().GetLValueReferenceType());
+    NamedDecl *var_decl = context.AddVarDecl(parser_type);
+
+    std::string decl_name(context.m_decl_name.getAsString());
+    ConstString entity_name(decl_name.c_str());
+    ClangExpressionVariable *entity(new ClangExpressionVariable(m_parser_vars->m_exe_ctx.GetBestExecutionContextScope (),
+                                                                entity_name,
+                                                                user_type,
+                                                                m_parser_vars->m_target_info.byte_order,
+                                                                m_parser_vars->m_target_info.address_byte_size));
+    m_found_entities.AddNewlyConstructedVariable(entity);
+    
+    entity->EnableParserVars(GetParserID());
+    ClangExpressionVariable::ParserVars *parser_vars = entity->GetParserVars(GetParserID());
+
+    const Address symbol_address = symbol.GetAddress();
+    lldb::addr_t symbol_load_addr = symbol_address.GetLoadAddress(target);
+
+    //parser_vars->m_lldb_value.SetContext(Value::eContextTypeClangType, user_type.GetOpaqueQualType());
+    parser_vars->m_lldb_value.SetCompilerType(user_type);
+    parser_vars->m_lldb_value.GetScalar() = symbol_load_addr;
+    parser_vars->m_lldb_value.SetValueType(Value::eValueTypeLoadAddress);
+
+    parser_vars->m_parser_type = parser_type;
+    parser_vars->m_named_decl  = var_decl;
+    parser_vars->m_llvm_value  = NULL;
+    parser_vars->m_lldb_sym    = &symbol;
+
+    if (log)
+    {
+        ASTDumper ast_dumper(var_decl);
+
+        log->Printf("  CEDM::FEVD[%u] Found variable %s, returned %s", current_id, decl_name.c_str(), ast_dumper.GetCString());
+    }
+}
+
+bool
+ClangExpressionDeclMap::ResolveUnknownTypes()
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+    Target *target = m_parser_vars->m_exe_ctx.GetTargetPtr();
+
+    ClangASTContext *scratch_ast_context = target->GetScratchClangASTContext();
+
+    for (size_t index = 0, num_entities = m_found_entities.GetSize();
+         index < num_entities;
+         ++index)
+    {
+        ExpressionVariableSP entity = m_found_entities.GetVariableAtIndex(index);
+
+        ClangExpressionVariable::ParserVars *parser_vars = llvm::cast<ClangExpressionVariable>(entity.get())->GetParserVars(GetParserID());
+
+        if (entity->m_flags & ClangExpressionVariable::EVUnknownType)
+        {
+            const NamedDecl *named_decl = parser_vars->m_named_decl;
+            const VarDecl *var_decl = dyn_cast<VarDecl>(named_decl);
+
+            if (!var_decl)
+            {
+                if (log)
+                    log->Printf("Entity of unknown type does not have a VarDecl");
+                return false;
+            }
+
+            if (log)
+            {
+                ASTDumper ast_dumper(const_cast<VarDecl*>(var_decl));
+                log->Printf("Variable of unknown type now has Decl %s", ast_dumper.GetCString());
+            }
+
+            QualType var_type = var_decl->getType();
+            TypeFromParser parser_type(var_type.getAsOpaquePtr(), ClangASTContext::GetASTContext(&var_decl->getASTContext()));
+
+            lldb::opaque_compiler_type_t copied_type = m_ast_importer_sp->CopyType(scratch_ast_context->getASTContext(), &var_decl->getASTContext(), var_type.getAsOpaquePtr());
+
+            if (!copied_type)
+            {
+                if (log)
+                    log->Printf("ClangExpressionDeclMap::ResolveUnknownType - Couldn't import the type for a variable");
+
+                return (bool) lldb::ExpressionVariableSP();
+            }
+
+            TypeFromUser user_type(copied_type, scratch_ast_context);
+
+//            parser_vars->m_lldb_value.SetContext(Value::eContextTypeClangType, user_type.GetOpaqueQualType());
+            parser_vars->m_lldb_value.SetCompilerType(user_type);
+            parser_vars->m_parser_type = parser_type;
+
+            entity->SetCompilerType(user_type);
+
+            entity->m_flags &= ~(ClangExpressionVariable::EVUnknownType);
+        }
+    }
+
+    return true;
+}
+
+void
+ClangExpressionDeclMap::AddOneRegister (NameSearchContext &context,
+                                        const RegisterInfo *reg_info,
+                                        unsigned int current_id)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    CompilerType clang_type = ClangASTContext::GetBuiltinTypeForEncodingAndBitSize (m_ast_context,
+                                                                                    reg_info->encoding,
+                                                                                    reg_info->byte_size * 8);
+
+    if (!clang_type)
+    {
+        if (log)
+            log->Printf("  Tried to add a type for %s, but couldn't get one", context.m_decl_name.getAsString().c_str());
+        return;
+    }
+
+    TypeFromParser parser_clang_type (clang_type);
+
+    NamedDecl *var_decl = context.AddVarDecl(parser_clang_type);
+
+    ClangExpressionVariable *entity(new ClangExpressionVariable(m_parser_vars->m_exe_ctx.GetBestExecutionContextScope(),
+                                                                m_parser_vars->m_target_info.byte_order,
+                                                                m_parser_vars->m_target_info.address_byte_size));
+    m_found_entities.AddNewlyConstructedVariable(entity);
+
+    std::string decl_name(context.m_decl_name.getAsString());
+    entity->SetName (ConstString (decl_name.c_str()));
+    entity->SetRegisterInfo (reg_info);
+    entity->EnableParserVars(GetParserID());
+    ClangExpressionVariable::ParserVars *parser_vars = entity->GetParserVars(GetParserID());
+    parser_vars->m_parser_type = parser_clang_type;
+    parser_vars->m_named_decl = var_decl;
+    parser_vars->m_llvm_value = NULL;
+    parser_vars->m_lldb_value.Clear();
+    entity->m_flags |= ClangExpressionVariable::EVBareRegister;
+
+    if (log)
+    {
+        ASTDumper ast_dumper(var_decl);
+        log->Printf("  CEDM::FEVD[%d] Added register %s, returned %s", current_id, context.m_decl_name.getAsString().c_str(), ast_dumper.GetCString());
+    }
+}
+
+void
+ClangExpressionDeclMap::AddOneFunction (NameSearchContext &context,
+                                        Function* function,
+                                        Symbol* symbol,
+                                        unsigned int current_id)
+{
+    assert (m_parser_vars.get());
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    NamedDecl *function_decl = NULL;
+    Address fun_address;
+    CompilerType function_clang_type;
+
+    bool is_indirect_function = false;
+
+    if (function)
+    {
+        Type *function_type = function->GetType();
+
+        if (!function_type)
+        {
+            if (log)
+                log->PutCString("  Skipped a function because it has no type");
+            return;
+        }
+
+        function_clang_type = function_type->GetFullCompilerType ();
+
+        if (!function_clang_type)
+        {
+            if (log)
+                log->PutCString("  Skipped a function because it has no Clang type");
+            return;
+        }
+
+        fun_address = function->GetAddressRange().GetBaseAddress();
+
+        CompilerType copied_function_type = GuardedCopyType(function_clang_type);
+        if (copied_function_type)
+        {
+            function_decl = context.AddFunDecl(copied_function_type);
+
+            if (!function_decl)
+            {
+                if (log)
+                {
+                    log->Printf ("  Failed to create a function decl for '%s' {0x%8.8" PRIx64 "}",
+                                 function_type->GetName().GetCString(),
+                                 function_type->GetID());
+                }
+
+                return;
+            }
+        }
+        else
+        {
+            // We failed to copy the type we found
+            if (log)
+            {
+                log->Printf ("  Failed to import the function type '%s' {0x%8.8" PRIx64 "} into the expression parser AST contenxt",
+                             function_type->GetName().GetCString(),
+                             function_type->GetID());
+            }
+
+            return;
+        }
+    }
+    else if (symbol)
+    {
+        fun_address = symbol->GetAddress();
+        function_decl = context.AddGenericFunDecl();
+        is_indirect_function = symbol->IsIndirect();
+    }
+    else
+    {
+        if (log)
+            log->PutCString("  AddOneFunction called with no function and no symbol");
+        return;
+    }
+
+    Target *target = m_parser_vars->m_exe_ctx.GetTargetPtr();
+
+    lldb::addr_t load_addr = fun_address.GetCallableLoadAddress(target, is_indirect_function);
+
+    ClangExpressionVariable *entity(new ClangExpressionVariable (m_parser_vars->m_exe_ctx.GetBestExecutionContextScope (),
+                                                                 m_parser_vars->m_target_info.byte_order,
+                                                                 m_parser_vars->m_target_info.address_byte_size));
+    m_found_entities.AddNewlyConstructedVariable(entity);
+
+    std::string decl_name(context.m_decl_name.getAsString());
+    entity->SetName(ConstString(decl_name.c_str()));
+    entity->SetCompilerType (function_clang_type);
+    entity->EnableParserVars(GetParserID());
+
+    ClangExpressionVariable::ParserVars *parser_vars = entity->GetParserVars(GetParserID());
+
+    if (load_addr != LLDB_INVALID_ADDRESS)
+    {
+        parser_vars->m_lldb_value.SetValueType(Value::eValueTypeLoadAddress);
+        parser_vars->m_lldb_value.GetScalar() = load_addr;
+    }
+    else
+    {
+        // We have to try finding a file address.
+
+        lldb::addr_t file_addr = fun_address.GetFileAddress();
+
+        parser_vars->m_lldb_value.SetValueType(Value::eValueTypeFileAddress);
+        parser_vars->m_lldb_value.GetScalar() = file_addr;
+    }
+
+
+    parser_vars->m_named_decl  = function_decl;
+    parser_vars->m_llvm_value  = NULL;
+
+    if (log)
+    {
+        ASTDumper ast_dumper(function_decl);
+
+        StreamString ss;
+
+        fun_address.Dump(&ss, m_parser_vars->m_exe_ctx.GetBestExecutionContextScope(), Address::DumpStyleResolvedDescription);
+
+        log->Printf("  CEDM::FEVD[%u] Found %s function %s (description %s), returned %s",
+                    current_id,
+                    (function ? "specific" : "generic"),
+                    decl_name.c_str(),
+                    ss.GetData(),
+                    ast_dumper.GetCString());
+    }
+}
+
+void
+ClangExpressionDeclMap::AddThisType(NameSearchContext &context,
+                                    TypeFromUser &ut,
+                                    unsigned int current_id)
+{
+    CompilerType copied_clang_type = GuardedCopyType(ut);
+
+    if (!copied_clang_type)
+    {
+        Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+        if (log)
+            log->Printf("ClangExpressionDeclMap::AddThisType - Couldn't import the type");
+
+        return;
+    }
+
+    if (copied_clang_type.IsAggregateType() && copied_clang_type.GetCompleteType ())
+    {
+        CompilerType void_clang_type = ClangASTContext::GetBasicType(m_ast_context, eBasicTypeVoid);
+        CompilerType void_ptr_clang_type = void_clang_type.GetPointerType();
+
+        CompilerType method_type = ClangASTContext::CreateFunctionType (m_ast_context,
+                                                                        void_clang_type,
+                                                                        &void_ptr_clang_type,
+                                                                        1,
+                                                                        false,
+                                                                        copied_clang_type.GetTypeQualifiers());
+
+        const bool is_virtual = false;
+        const bool is_static = false;
+        const bool is_inline = false;
+        const bool is_explicit = false;
+        const bool is_attr_used = true;
+        const bool is_artificial = false;
+
+        ClangASTContext::GetASTContext(m_ast_context)->
+            AddMethodToCXXRecordType (copied_clang_type.GetOpaqueQualType(),
+                                      "$__lldb_expr",
+                                      method_type,
+                                      lldb::eAccessPublic,
+                                      is_virtual,
+                                      is_static,
+                                      is_inline,
+                                      is_explicit,
+                                      is_attr_used,
+                                      is_artificial);
+    }
+
+    if (!copied_clang_type.IsValid())
+        return;
+    
+    TypeSourceInfo *type_source_info = m_ast_context->getTrivialTypeSourceInfo(QualType::getFromOpaquePtr(copied_clang_type.GetOpaqueQualType()));
+    
+    if (!type_source_info)
+        return;
+    
+    // Construct a typedef type because if "*this" is a templated type we can't just return ClassTemplateSpecializationDecls in response to name queries.
+    // Using a typedef makes this much more robust.
+    
+    TypedefDecl *typedef_decl = TypedefDecl::Create(*m_ast_context,
+                                                    m_ast_context->getTranslationUnitDecl(),
+                                                    SourceLocation(),
+                                                    SourceLocation(),
+                                                    context.m_decl_name.getAsIdentifierInfo(),
+                                                    type_source_info);
+    
+    
+    if (!typedef_decl)
+        return;
+    
+    context.AddNamedDecl(typedef_decl);
+
+    return;
+}
+
+void
+ClangExpressionDeclMap::AddOneType(NameSearchContext &context,
+                                   TypeFromUser &ut,
+                                   unsigned int current_id)
+{
+    CompilerType copied_clang_type = GuardedCopyType(ut);
+
+    if (!copied_clang_type)
+    {
+        Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+        if (log)
+            log->Printf("ClangExpressionDeclMap::AddOneType - Couldn't import the type");
+
+        return;
+    }
+
+    context.AddTypeDecl(copied_clang_type);
+}
diff --git a/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.h b/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.h
new file mode 100644
index 0000000000000..b3f890c7acc71
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.h
@@ -0,0 +1,714 @@
+//===-- ClangExpressionDeclMap.h --------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ClangExpressionDeclMap_h_
+#define liblldb_ClangExpressionDeclMap_h_
+
+// C Includes
+#include <signal.h>
+#include <stdint.h>
+
+// C++ Includes
+#include <vector>
+
+#include "ClangExpressionVariable.h"
+#include "ClangASTSource.h"
+
+// Other libraries and framework includes
+// Project includes
+#include "llvm/ADT/DenseMap.h"
+#include "clang/AST/Decl.h"
+#include "lldb/lldb-public.h"
+#include "lldb/Core/ClangForward.h"
+#include "lldb/Core/Value.h"
+#include "lldb/Expression/Materializer.h"
+#include "lldb/Symbol/TaggedASTType.h"
+#include "lldb/Symbol/SymbolContext.h"
+#include "lldb/Target/ExecutionContext.h"
+
+namespace lldb_private {
+
+//----------------------------------------------------------------------
+/// @class ClangExpressionDeclMap ClangExpressionDeclMap.h "lldb/Expression/ClangExpressionDeclMap.h"
+/// @brief Manages named entities that are defined in LLDB's debug information.
+///
+/// The Clang parser uses the ClangASTSource as an interface to request named
+/// entities from outside an expression.  The ClangASTSource reports back, listing
+/// all possible objects corresponding to a particular name.  But it in turn
+/// relies on ClangExpressionDeclMap, which performs several important functions.
+///
+/// First, it records what variables and functions were looked up and what Decls
+/// were returned for them.
+///
+/// Second, it constructs a struct on behalf of IRForTarget, recording which 
+/// variables should be placed where and relaying this information back so that 
+/// IRForTarget can generate context-independent code.
+///
+/// Third, it "materializes" this struct on behalf of the expression command,
+/// finding the current values of each variable and placing them into the
+/// struct so that it can be passed to the JITted version of the IR.
+///
+/// Fourth and finally, it "dematerializes" the struct after the JITted code has
+/// has executed, placing the new values back where it found the old ones.
+//----------------------------------------------------------------------
+class ClangExpressionDeclMap : 
+    public ClangASTSource
+{
+public:
+    //------------------------------------------------------------------
+    /// Constructor
+    ///
+    /// Initializes class variables.
+    ///
+    /// @param[in] keep_result_in_memory
+    ///     If true, inhibits the normal deallocation of the memory for
+    ///     the result persistent variable, and instead marks the variable
+    ///     as persisting.
+    ///
+    /// @param[in] delegate
+    ///     If non-NULL, use this delegate to report result values.  This
+    ///     allows the client ClangUserExpression to report a result.
+    ///
+    /// @param[in] exe_ctx
+    ///     The execution context to use when parsing.
+    //------------------------------------------------------------------
+    ClangExpressionDeclMap (bool keep_result_in_memory,
+                            Materializer::PersistentVariableDelegate *result_delegate,
+                            ExecutionContext &exe_ctx);
+    
+    //------------------------------------------------------------------
+    /// Destructor
+    //------------------------------------------------------------------
+    ~ClangExpressionDeclMap() override;
+    
+    //------------------------------------------------------------------
+    /// Enable the state needed for parsing and IR transformation.
+    ///
+    /// @param[in] exe_ctx
+    ///     The execution context to use when finding types for variables.
+    ///     Also used to find a "scratch" AST context to store result types.
+    ///
+    /// @param[in] materializer
+    ///     If non-NULL, the materializer to populate with information about
+    ///     the variables to use
+    ///
+    /// @return
+    ///     True if parsing is possible; false if it is unsafe to continue.
+    //------------------------------------------------------------------
+    bool
+    WillParse (ExecutionContext &exe_ctx,
+               Materializer *materializer);
+    
+    void
+    InstallCodeGenerator (clang::ASTConsumer *code_gen);
+    
+    //------------------------------------------------------------------
+    /// [Used by ClangExpressionParser] For each variable that had an unknown
+    ///     type at the beginning of parsing, determine its final type now.
+    ///
+    /// @return
+    ///     True on success; false otherwise.
+    //------------------------------------------------------------------
+    bool 
+    ResolveUnknownTypes();
+    
+    //------------------------------------------------------------------
+    /// Disable the state needed for parsing and IR transformation.
+    //------------------------------------------------------------------
+    void 
+    DidParse ();
+    
+    //------------------------------------------------------------------
+    /// [Used by IRForTarget] Add a variable to the list of persistent
+    ///     variables for the process.
+    ///
+    /// @param[in] decl
+    ///     The Clang declaration for the persistent variable, used for
+    ///     lookup during parsing.
+    ///
+    /// @param[in] name
+    ///     The name of the persistent variable, usually $something.
+    ///
+    /// @param[in] type
+    ///     The type of the variable, in the Clang parser's context.
+    ///
+    /// @return
+    ///     True on success; false otherwise.
+    //------------------------------------------------------------------
+    bool 
+    AddPersistentVariable (const clang::NamedDecl *decl,
+                           const ConstString &name, 
+                           TypeFromParser type,
+                           bool is_result,
+                           bool is_lvalue);
+    
+    //------------------------------------------------------------------
+    /// [Used by IRForTarget] Add a variable to the struct that needs to
+    ///     be materialized each time the expression runs.
+    ///
+    /// @param[in] decl
+    ///     The Clang declaration for the variable.
+    ///
+    /// @param[in] name
+    ///     The name of the variable.
+    ///
+    /// @param[in] value
+    ///     The LLVM IR value for this variable.
+    ///
+    /// @param[in] size
+    ///     The size of the variable in bytes.
+    ///
+    /// @param[in] alignment
+    ///     The required alignment of the variable in bytes.
+    ///
+    /// @return
+    ///     True on success; false otherwise.
+    //------------------------------------------------------------------
+    bool 
+    AddValueToStruct (const clang::NamedDecl *decl,
+                      const ConstString &name,
+                      llvm::Value *value,
+                      size_t size,
+                      lldb::offset_t alignment);
+    
+    //------------------------------------------------------------------
+    /// [Used by IRForTarget] Finalize the struct, laying out the position 
+    /// of each object in it.
+    ///
+    /// @return
+    ///     True on success; false otherwise.
+    //------------------------------------------------------------------
+    bool 
+    DoStructLayout ();
+    
+    //------------------------------------------------------------------
+    /// [Used by IRForTarget] Get general information about the laid-out
+    /// struct after DoStructLayout() has been called.
+    ///
+    /// @param[out] num_elements
+    ///     The number of elements in the struct.
+    ///
+    /// @param[out] size
+    ///     The size of the struct, in bytes.
+    ///
+    /// @param[out] alignment
+    ///     The alignment of the struct, in bytes.
+    ///
+    /// @return
+    ///     True if the information could be retrieved; false otherwise.
+    //------------------------------------------------------------------
+    bool 
+    GetStructInfo (uint32_t &num_elements,
+                   size_t &size,
+                   lldb::offset_t &alignment);
+    
+    //------------------------------------------------------------------
+    /// [Used by IRForTarget] Get specific information about one field
+    /// of the laid-out struct after DoStructLayout() has been called.
+    ///
+    /// @param[out] decl
+    ///     The parsed Decl for the field, as generated by ClangASTSource
+    ///     on ClangExpressionDeclMap's behalf.  In the case of the result
+    ///     value, this will have the name $__lldb_result even if the
+    ///     result value ends up having the name $1.  This is an
+    ///     implementation detail of IRForTarget.
+    ///
+    /// @param[out] value
+    ///     The IR value for the field (usually a GlobalVariable).  In
+    ///     the case of the result value, this will have the correct
+    ///     name ($1, for instance).  This is an implementation detail
+    ///     of IRForTarget.
+    ///
+    /// @param[out] offset
+    ///     The offset of the field from the beginning of the struct.
+    ///     As long as the struct is aligned according to its required
+    ///     alignment, this offset will align the field correctly.
+    ///
+    /// @param[out] name
+    ///     The name of the field as used in materialization.
+    ///
+    /// @param[in] index
+    ///     The index of the field about which information is requested.
+    ///
+    /// @return
+    ///     True if the information could be retrieved; false otherwise.
+    //------------------------------------------------------------------
+    bool 
+    GetStructElement (const clang::NamedDecl *&decl,
+                      llvm::Value *&value,
+                      lldb::offset_t &offset,
+                      ConstString &name,
+                      uint32_t index);
+    
+    //------------------------------------------------------------------
+    /// [Used by IRForTarget] Get information about a function given its
+    /// Decl.
+    ///
+    /// @param[in] decl
+    ///     The parsed Decl for the Function, as generated by ClangASTSource
+    ///     on ClangExpressionDeclMap's behalf.
+    ///
+    /// @param[out] ptr
+    ///     The absolute address of the function in the target.
+    ///
+    /// @return
+    ///     True if the information could be retrieved; false otherwise.
+    //------------------------------------------------------------------
+    bool 
+    GetFunctionInfo (const clang::NamedDecl *decl, 
+                     uint64_t &ptr);
+    
+    //------------------------------------------------------------------
+    /// [Used by IRForTarget] Get the address of a function given nothing
+    /// but its name.  Some functions are needed but didn't get Decls made
+    /// during parsing -- specifically, sel_registerName is never called
+    /// in the generated IR but we need to call it nonetheless.
+    ///
+    /// @param[in] name
+    ///     The name of the function.  
+    ///
+    /// @param[out] ptr
+    ///     The absolute address of the function in the target.
+    ///
+    /// @return
+    ///     True if the address could be retrieved; false otherwise.
+    //------------------------------------------------------------------
+    bool 
+    GetFunctionAddress (const ConstString &name,
+                        uint64_t &ptr);
+    
+    //------------------------------------------------------------------
+    /// [Used by IRForTarget] Get the address of a symbol given nothing
+    /// but its name.
+    ///
+    /// @param[in] target
+    ///     The target to find the symbol in.  If not provided,
+    ///     then the current parsing context's Target.
+    ///
+    /// @param[in] process
+    ///     The process to use.  For Objective-C symbols, the process's
+    ///     Objective-C language runtime may be queried if the process
+    ///     is non-NULL.
+    ///
+    /// @param[in] name
+    ///     The name of the symbol.  
+    ///
+    /// @param[in] module
+    ///     The module to limit the search to. This can be NULL
+    ///
+    /// @return
+    ///     Valid load address for the symbol
+    //------------------------------------------------------------------
+    lldb::addr_t 
+    GetSymbolAddress (Target &target,
+                      Process *process,
+                      const ConstString &name,
+                      lldb::SymbolType symbol_type,
+                      Module *module = NULL);
+    
+    lldb::addr_t
+    GetSymbolAddress (const ConstString &name,
+                      lldb::SymbolType symbol_type);
+    
+    //------------------------------------------------------------------
+    /// [Used by IRInterpreter] Get basic target information.
+    ///
+    /// @param[out] byte_order
+    ///     The byte order of the target.
+    ///
+    /// @param[out] address_byte_size
+    ///     The size of a pointer in bytes.
+    ///
+    /// @return
+    ///     True if the information could be determined; false 
+    ///     otherwise.
+    //------------------------------------------------------------------
+    struct TargetInfo
+    {
+        lldb::ByteOrder byte_order;
+        size_t address_byte_size;
+        
+        TargetInfo() :
+            byte_order(lldb::eByteOrderInvalid),
+            address_byte_size(0)
+        {
+        }
+        
+        bool IsValid()
+        {
+            return (byte_order != lldb::eByteOrderInvalid &&
+                    address_byte_size != 0);
+        }
+    };
+    TargetInfo GetTargetInfo();
+    
+    //------------------------------------------------------------------
+    /// [Used by ClangASTSource] Find all entities matching a given name,
+    /// using a NameSearchContext to make Decls for them.
+    ///
+    /// @param[in] context
+    ///     The NameSearchContext that can construct Decls for this name.
+    ///
+    /// @return
+    ///     True on success; false otherwise.
+    //------------------------------------------------------------------
+    void 
+    FindExternalVisibleDecls(NameSearchContext &context) override;
+    
+    //------------------------------------------------------------------
+    /// Find all entities matching a given name in a given module/namespace,
+    /// using a NameSearchContext to make Decls for them.
+    ///
+    /// @param[in] context
+    ///     The NameSearchContext that can construct Decls for this name.
+    ///
+    /// @param[in] module
+    ///     If non-NULL, the module to query.
+    ///
+    /// @param[in] namespace_decl
+    ///     If valid and module is non-NULL, the parent namespace.
+    ///
+    /// @param[in] name
+    ///     The name as a plain C string.  The NameSearchContext contains 
+    ///     a DeclarationName for the name so at first the name may seem
+    ///     redundant, but ClangExpressionDeclMap operates in RTTI land so 
+    ///     it can't access DeclarationName.
+    ///
+    /// @param[in] current_id
+    ///     The ID for the current FindExternalVisibleDecls invocation,
+    ///     for logging purposes.
+    ///
+    /// @return
+    ///     True on success; false otherwise.
+    //------------------------------------------------------------------
+    void 
+    FindExternalVisibleDecls (NameSearchContext &context, 
+                              lldb::ModuleSP module,
+                              CompilerDeclContext &namespace_decl,
+                              unsigned int current_id);
+private:
+    ExpressionVariableList      m_found_entities;           ///< All entities that were looked up for the parser.
+    ExpressionVariableList      m_struct_members;           ///< All entities that need to be placed in the struct.
+    bool                        m_keep_result_in_memory;    ///< True if result persistent variables generated by this expression should stay in memory.
+    Materializer::PersistentVariableDelegate *m_result_delegate;  ///< If non-NULL, used to report expression results to ClangUserExpression.
+    
+    //----------------------------------------------------------------------
+    /// The following values should not live beyond parsing
+    //----------------------------------------------------------------------
+    class ParserVars 
+    {
+    public:
+        ParserVars(ClangExpressionDeclMap &decl_map) :
+            m_decl_map(decl_map)
+        {
+        }
+        
+        Target *
+        GetTarget()
+        {
+            if (m_exe_ctx.GetTargetPtr())
+                return m_exe_ctx.GetTargetPtr();
+            else if (m_sym_ctx.target_sp)
+                m_sym_ctx.target_sp.get();
+            return NULL;
+        }
+        
+        ExecutionContext            m_exe_ctx;                      ///< The execution context to use when parsing.
+        SymbolContext               m_sym_ctx;                      ///< The symbol context to use in finding variables and types.
+        ClangPersistentVariables   *m_persistent_vars = nullptr;    ///< The persistent variables for the process.
+        bool                        m_enable_lookups = false;       ///< Set to true during parsing if we have found the first "$__lldb" name.
+        TargetInfo                  m_target_info;                  ///< Basic information about the target.
+        Materializer               *m_materializer = nullptr;       ///< If non-NULL, the materializer to use when reporting used variables.
+        clang::ASTConsumer         *m_code_gen = nullptr;           ///< If non-NULL, a code generator that receives new top-level functions.
+    private:
+        ClangExpressionDeclMap     &m_decl_map;
+        DISALLOW_COPY_AND_ASSIGN (ParserVars);
+    };
+    
+    std::unique_ptr<ParserVars> m_parser_vars;
+    
+    //----------------------------------------------------------------------
+    /// Activate parser-specific variables
+    //----------------------------------------------------------------------
+    void 
+    EnableParserVars()
+    {
+        if (!m_parser_vars.get())
+            m_parser_vars.reset(new ParserVars(*this));
+    }
+    
+    //----------------------------------------------------------------------
+    /// Deallocate parser-specific variables
+    //----------------------------------------------------------------------
+    void 
+    DisableParserVars()
+    {
+        m_parser_vars.reset();
+    }
+    
+    //----------------------------------------------------------------------
+    /// The following values contain layout information for the materialized
+    /// struct, but are not specific to a single materialization
+    //----------------------------------------------------------------------
+    struct StructVars {
+        StructVars() :
+            m_struct_alignment(0),
+            m_struct_size(0),
+            m_struct_laid_out(false),
+            m_result_name(),
+            m_object_pointer_type(NULL, NULL)
+        {
+        }
+        
+        lldb::offset_t              m_struct_alignment;         ///< The alignment of the struct in bytes.
+        size_t                      m_struct_size;              ///< The size of the struct in bytes.
+        bool                        m_struct_laid_out;          ///< True if the struct has been laid out and the layout is valid (that is, no new fields have been added since).
+        ConstString                 m_result_name;              ///< The name of the result variable ($1, for example)
+        TypeFromUser                m_object_pointer_type;      ///< The type of the "this" variable, if one exists
+    };
+    
+    std::unique_ptr<StructVars> m_struct_vars;
+    
+    //----------------------------------------------------------------------
+    /// Activate struct variables
+    //----------------------------------------------------------------------
+    void 
+    EnableStructVars()
+    {
+        if (!m_struct_vars.get())
+            m_struct_vars.reset(new struct StructVars);
+    }
+    
+    //----------------------------------------------------------------------
+    /// Deallocate struct variables
+    //----------------------------------------------------------------------
+    void
+    DisableStructVars()
+    {
+        m_struct_vars.reset();
+    }
+    
+    //----------------------------------------------------------------------
+    /// Get this parser's ID for use in extracting parser- and JIT-specific
+    /// data from persistent variables.
+    //----------------------------------------------------------------------
+    uint64_t
+    GetParserID()
+    {
+        return (uint64_t)this;
+    }
+    
+    //------------------------------------------------------------------
+    /// Given a target, find a data symbol that has the given name.
+    ///
+    /// @param[in] target
+    ///     The target to use as the basis for the search.
+    ///
+    /// @param[in] name
+    ///     The name as a plain C string.
+    ///
+    /// @param[in] module
+    ///     The module to limit the search to. This can be NULL
+    ///
+    /// @return
+    ///     The LLDB Symbol found, or NULL if none was found.
+    //------------------------------------------------------------------
+    const Symbol *
+    FindGlobalDataSymbol (Target &target,
+                          const ConstString &name,
+                          Module *module = NULL);
+    
+    //------------------------------------------------------------------
+    /// Given a target, find a variable that matches the given name and 
+    /// type.
+    ///
+    /// @param[in] target
+    ///     The target to use as a basis for finding the variable.
+    ///
+    /// @param[in] module
+    ///     If non-NULL, the module to search.
+    ///
+    /// @param[in] name
+    ///     The name as a plain C string.
+    ///
+    /// @param[in] namespace_decl
+    ///     If non-NULL and module is non-NULL, the parent namespace.
+    ///
+    /// @param[in] type
+    ///     The required type for the variable.  This function may be called
+    ///     during parsing, in which case we don't know its type; hence the
+    ///     default.
+    ///
+    /// @return
+    ///     The LLDB Variable found, or NULL if none was found.
+    //------------------------------------------------------------------
+    lldb::VariableSP
+    FindGlobalVariable (Target &target,
+                        lldb::ModuleSP &module,
+                        const ConstString &name,
+                        CompilerDeclContext *namespace_decl,
+                        TypeFromUser *type = NULL);
+    
+    //------------------------------------------------------------------
+    /// Get the value of a variable in a given execution context and return
+    /// the associated Types if needed.
+    ///
+    /// @param[in] var
+    ///     The variable to evaluate.
+    ///
+    /// @param[out] var_location
+    ///     The variable location value to fill in
+    ///
+    /// @param[out] found_type
+    ///     The type of the found value, as it was found in the user process.
+    ///     This is only useful when the variable is being inspected on behalf
+    ///     of the parser, hence the default.
+    ///
+    /// @param[out] parser_type
+    ///     The type of the found value, as it was copied into the parser's
+    ///     AST context.  This is only useful when the variable is being
+    ///     inspected on behalf of the parser, hence the default.
+    ///
+    /// @param[in] decl
+    ///     The Decl to be looked up.
+    ///
+    /// @return
+    ///     Return true if the value was successfully filled in.
+    //------------------------------------------------------------------
+    bool
+    GetVariableValue (lldb::VariableSP &var,
+                      lldb_private::Value &var_location,
+                      TypeFromUser *found_type = NULL,
+                      TypeFromParser *parser_type = NULL);
+    
+    //------------------------------------------------------------------
+    /// Use the NameSearchContext to generate a Decl for the given LLDB
+    /// Variable, and put it in the Tuple list.
+    ///
+    /// @param[in] context
+    ///     The NameSearchContext to use when constructing the Decl.
+    ///
+    /// @param[in] var
+    ///     The LLDB Variable that needs a Decl.
+    ///
+    /// @param[in] valobj
+    ///     The LLDB ValueObject for that variable.
+    //------------------------------------------------------------------
+    void 
+    AddOneVariable (NameSearchContext &context, 
+                    lldb::VariableSP var,
+                    lldb::ValueObjectSP valobj,
+                    unsigned int current_id);
+    
+    //------------------------------------------------------------------
+    /// Use the NameSearchContext to generate a Decl for the given
+    /// persistent variable, and put it in the list of found entities.
+    ///
+    /// @param[in] context
+    ///     The NameSearchContext to use when constructing the Decl.
+    ///
+    /// @param[in] pvar
+    ///     The persistent variable that needs a Decl.
+    ///
+    /// @param[in] current_id
+    ///     The ID of the current invocation of FindExternalVisibleDecls
+    ///     for logging purposes.
+    //------------------------------------------------------------------
+    void 
+    AddOneVariable (NameSearchContext &context, 
+                    lldb::ExpressionVariableSP &pvar_sp,
+                    unsigned int current_id);
+    
+    //------------------------------------------------------------------
+    /// Use the NameSearchContext to generate a Decl for the given LLDB
+    /// symbol (treated as a variable), and put it in the list of found
+    /// entities.
+    ///
+    /// @param[in] context
+    ///     The NameSearchContext to use when constructing the Decl.
+    ///
+    /// @param[in] var
+    ///     The LLDB Variable that needs a Decl.
+    //------------------------------------------------------------------
+    void
+    AddOneGenericVariable (NameSearchContext &context,
+                           const Symbol &symbol,
+                           unsigned int current_id);
+    
+    //------------------------------------------------------------------
+    /// Use the NameSearchContext to generate a Decl for the given
+    /// function.  (Functions are not placed in the Tuple list.)  Can
+    /// handle both fully typed functions and generic functions.
+    ///
+    /// @param[in] context
+    ///     The NameSearchContext to use when constructing the Decl.
+    ///
+    /// @param[in] fun
+    ///     The Function that needs to be created.  If non-NULL, this is
+    ///     a fully-typed function.
+    ///
+    /// @param[in] sym
+    ///     The Symbol that corresponds to a function that needs to be 
+    ///     created with generic type (unitptr_t foo(...)).
+    //------------------------------------------------------------------
+    void
+    AddOneFunction (NameSearchContext &context, 
+                    Function *fun, 
+                    Symbol *sym,
+                    unsigned int current_id);
+    
+    //------------------------------------------------------------------
+    /// Use the NameSearchContext to generate a Decl for the given
+    /// register.
+    ///
+    /// @param[in] context
+    ///     The NameSearchContext to use when constructing the Decl.
+    ///
+    /// @param[in] reg_info
+    ///     The information corresponding to that register.
+    //------------------------------------------------------------------
+    void 
+    AddOneRegister (NameSearchContext &context, 
+                    const RegisterInfo *reg_info,
+                    unsigned int current_id);
+    
+    //------------------------------------------------------------------
+    /// Use the NameSearchContext to generate a Decl for the given
+    /// type.  (Types are not placed in the Tuple list.)
+    ///
+    /// @param[in] context
+    ///     The NameSearchContext to use when constructing the Decl.
+    ///
+    /// @param[in] type
+    ///     The type that needs to be created.
+    //------------------------------------------------------------------
+    void 
+    AddOneType (NameSearchContext &context, 
+                TypeFromUser &type,
+                unsigned int current_id);
+    
+    //------------------------------------------------------------------
+    /// Generate a Decl for "*this" and add a member function declaration
+    /// to it for the expression, then report it.
+    ///
+    /// @param[in] context
+    ///     The NameSearchContext to use when constructing the Decl.
+    ///
+    /// @param[in] type
+    ///     The type for *this.
+    //------------------------------------------------------------------
+    void
+    AddThisType(NameSearchContext &context,
+                TypeFromUser &type,
+                unsigned int current_id);
+};
+    
+} // namespace lldb_private
+
+#endif // liblldb_ClangExpressionDeclMap_h_
diff --git a/source/Plugins/ExpressionParser/Clang/ClangExpressionHelper.h b/source/Plugins/ExpressionParser/Clang/ClangExpressionHelper.h
new file mode 100644
index 0000000000000..bb620def691f9
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangExpressionHelper.h
@@ -0,0 +1,79 @@
+//===-- ClangExpression.h ---------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ClangExpression_h_
+#define liblldb_ClangExpression_h_
+
+// C Includes
+// C++ Includes
+#include <string>
+#include <map>
+#include <vector>
+
+// Other libraries and framework includes
+// Project includes
+
+#include "lldb/lldb-forward.h"
+#include "lldb/lldb-private.h"
+#include "lldb/Core/ClangForward.h"
+#include "lldb/Expression/ExpressionTypeSystemHelper.h"
+
+namespace lldb_private {
+
+class RecordingMemoryManager;
+
+//----------------------------------------------------------------------
+// ClangExpressionHelper
+//----------------------------------------------------------------------
+class ClangExpressionHelper : public ExpressionTypeSystemHelper
+{
+public:
+    static bool classof(const ExpressionTypeSystemHelper *ts)
+    {
+        return ts->getKind() == eKindClangHelper;
+    }
+
+    ClangExpressionHelper () :
+        ExpressionTypeSystemHelper(ExpressionTypeSystemHelper::LLVMCastKind::eKindClangHelper)
+    {
+    }
+
+    //------------------------------------------------------------------
+    /// Destructor
+    //------------------------------------------------------------------
+    virtual ~ClangExpressionHelper ()
+    {
+    }
+    
+    //------------------------------------------------------------------
+    /// Return the object that the parser should use when resolving external
+    /// values.  May be NULL if everything should be self-contained.
+    //------------------------------------------------------------------
+    virtual ClangExpressionDeclMap *
+    DeclMap () = 0;
+    
+    //------------------------------------------------------------------
+    /// Return the object that the parser should allow to access ASTs.
+    /// May be NULL if the ASTs do not need to be transformed.
+    ///
+    /// @param[in] passthrough
+    ///     The ASTConsumer that the returned transformer should send
+    ///     the ASTs to after transformation.
+    //------------------------------------------------------------------
+    virtual clang::ASTConsumer *
+    ASTTransformer (clang::ASTConsumer *passthrough) = 0;
+    
+
+protected:
+
+};
+
+} // namespace lldb_private
+
+#endif  // liblldb_ClangExpression_h_
diff --git a/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp b/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp
new file mode 100644
index 0000000000000..72c33fec8105c
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp
@@ -0,0 +1,657 @@
+//===-- ClangExpressionParser.cpp -------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/ExternalASTSource.h"
+#include "clang/Basic/FileManager.h"
+#include "clang/Basic/SourceLocation.h"
+#include "clang/Basic/TargetInfo.h"
+#include "clang/Basic/Version.h"
+#include "clang/CodeGen/CodeGenAction.h"
+#include "clang/CodeGen/ModuleBuilder.h"
+#include "clang/Frontend/CompilerInstance.h"
+#include "clang/Frontend/CompilerInvocation.h"
+#include "clang/Frontend/FrontendActions.h"
+#include "clang/Frontend/FrontendDiagnostic.h"
+#include "clang/Frontend/FrontendPluginRegistry.h"
+#include "clang/Frontend/TextDiagnosticBuffer.h"
+#include "clang/Frontend/TextDiagnosticPrinter.h"
+#include "clang/Lex/Preprocessor.h"
+#include "clang/Parse/ParseAST.h"
+#include "clang/Rewrite/Frontend/FrontendActions.h"
+#include "clang/Sema/SemaConsumer.h"
+#include "clang/StaticAnalyzer/Frontend/FrontendActions.h"
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ExecutionEngine/ExecutionEngine.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/TargetSelect.h"
+
+#include "llvm/ExecutionEngine/MCJIT.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/DynamicLibrary.h"
+#include "llvm/Support/Host.h"
+#include "llvm/Support/Signals.h"
+
+// Project includes
+#include "ClangExpressionParser.h"
+
+#include "ClangASTSource.h"
+#include "ClangExpressionHelper.h"
+#include "ClangExpressionDeclMap.h"
+#include "ClangModulesDeclVendor.h"
+#include "ClangPersistentVariables.h"
+#include "IRForTarget.h"
+
+#include "lldb/Core/ArchSpec.h"
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Debugger.h"
+#include "lldb/Core/Disassembler.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/StreamFile.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Expression/IRExecutionUnit.h"
+#include "lldb/Expression/IRDynamicChecks.h"
+#include "lldb/Expression/IRInterpreter.h"
+#include "lldb/Host/File.h"
+#include "lldb/Host/HostInfo.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Symbol/SymbolVendor.h"
+#include "lldb/Target/ExecutionContext.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/Target.h"
+
+using namespace clang;
+using namespace llvm;
+using namespace lldb_private;
+
+//===----------------------------------------------------------------------===//
+// Utility Methods for Clang
+//===----------------------------------------------------------------------===//
+
+std::string GetBuiltinIncludePath(const char *Argv0) {
+    SmallString<128> P(llvm::sys::fs::getMainExecutable(
+        Argv0, (void *)(intptr_t) GetBuiltinIncludePath));
+
+    if (!P.empty()) {
+        llvm::sys::path::remove_filename(P); // Remove /clang from foo/bin/clang
+        llvm::sys::path::remove_filename(P); // Remove /bin   from foo/bin
+
+        // Get foo/lib/clang/<version>/include
+        llvm::sys::path::append(P, "lib", "clang", CLANG_VERSION_STRING,
+                                "include");
+    }
+
+    return P.str();
+}
+
+class ClangExpressionParser::LLDBPreprocessorCallbacks : public PPCallbacks
+{
+    ClangModulesDeclVendor     &m_decl_vendor;
+    ClangPersistentVariables   &m_persistent_vars;
+    StreamString                m_error_stream;
+    bool                        m_has_errors = false;
+
+public:
+    LLDBPreprocessorCallbacks(ClangModulesDeclVendor &decl_vendor,
+                              ClangPersistentVariables &persistent_vars) :
+        m_decl_vendor(decl_vendor),
+        m_persistent_vars(persistent_vars)
+    {
+    }
+    
+    void
+    moduleImport(SourceLocation import_location,
+                 clang::ModuleIdPath path,
+                 const clang::Module * /*null*/) override
+    {
+        std::vector<ConstString> string_path;
+        
+        for (const std::pair<IdentifierInfo *, SourceLocation> &component : path)
+        {
+            string_path.push_back(ConstString(component.first->getName()));
+        }
+     
+        StreamString error_stream;
+        
+        ClangModulesDeclVendor::ModuleVector exported_modules;
+        
+        if (!m_decl_vendor.AddModule(string_path, &exported_modules, m_error_stream))
+        {
+            m_has_errors = true;
+        }
+        
+        for (ClangModulesDeclVendor::ModuleID module : exported_modules)
+        {
+            m_persistent_vars.AddHandLoadedClangModule(module);
+        }
+    }
+    
+    bool hasErrors()
+    {
+        return m_has_errors;
+    }
+    
+    const std::string &getErrorString()
+    {
+        return m_error_stream.GetString();
+    }
+};
+
+//===----------------------------------------------------------------------===//
+// Implementation of ClangExpressionParser
+//===----------------------------------------------------------------------===//
+
+ClangExpressionParser::ClangExpressionParser (ExecutionContextScope *exe_scope,
+                                              Expression &expr,
+                                              bool generate_debug_info) :
+    ExpressionParser (exe_scope, expr, generate_debug_info),
+    m_compiler (),
+    m_code_generator (),
+    m_pp_callbacks(nullptr)
+{
+    // 1. Create a new compiler instance.
+    m_compiler.reset(new CompilerInstance());
+
+    // 2. Install the target.
+
+    lldb::TargetSP target_sp;
+    if (exe_scope)
+        target_sp = exe_scope->CalculateTarget();
+
+    // TODO: figure out what to really do when we don't have a valid target.
+    // Sometimes this will be ok to just use the host target triple (when we
+    // evaluate say "2+3", but other expressions like breakpoint conditions
+    // and other things that _are_ target specific really shouldn't just be
+    // using the host triple. This needs to be fixed in a better way.
+    if (target_sp && target_sp->GetArchitecture().IsValid())
+    {
+        std::string triple = target_sp->GetArchitecture().GetTriple().str();
+        m_compiler->getTargetOpts().Triple = triple;
+    }
+    else
+    {
+        m_compiler->getTargetOpts().Triple = llvm::sys::getDefaultTargetTriple();
+    }
+
+    if (target_sp->GetArchitecture().GetMachine() == llvm::Triple::x86 ||
+        target_sp->GetArchitecture().GetMachine() == llvm::Triple::x86_64)
+    {
+        m_compiler->getTargetOpts().Features.push_back("+sse");
+        m_compiler->getTargetOpts().Features.push_back("+sse2");
+    }
+
+    // Any arm32 iOS environment, but not on arm64
+    if (m_compiler->getTargetOpts().Triple.find("arm64") == std::string::npos &&
+        m_compiler->getTargetOpts().Triple.find("arm") != std::string::npos &&
+        m_compiler->getTargetOpts().Triple.find("ios") != std::string::npos)
+    {
+        m_compiler->getTargetOpts().ABI = "apcs-gnu";
+    }
+
+    m_compiler->createDiagnostics();
+
+    // Create the target instance.
+    m_compiler->setTarget(TargetInfo::CreateTargetInfo(
+        m_compiler->getDiagnostics(), m_compiler->getInvocation().TargetOpts));
+
+    assert (m_compiler->hasTarget());
+
+    // 3. Set options.
+
+    lldb::LanguageType language = expr.Language();
+
+    switch (language)
+    {
+    case lldb::eLanguageTypeC:
+    case lldb::eLanguageTypeC89:
+    case lldb::eLanguageTypeC99:
+    case lldb::eLanguageTypeC11:
+        // FIXME: the following language option is a temporary workaround,
+        // to "ask for C, get C++."
+        // For now, the expression parser must use C++ anytime the
+        // language is a C family language, because the expression parser
+        // uses features of C++ to capture values.
+        m_compiler->getLangOpts().CPlusPlus = true;
+        break;
+    case lldb::eLanguageTypeObjC:
+        m_compiler->getLangOpts().ObjC1 = true;
+        m_compiler->getLangOpts().ObjC2 = true;
+        // FIXME: the following language option is a temporary workaround,
+        // to "ask for ObjC, get ObjC++" (see comment above).
+        m_compiler->getLangOpts().CPlusPlus = true;
+        break;
+    case lldb::eLanguageTypeC_plus_plus:
+    case lldb::eLanguageTypeC_plus_plus_11:
+    case lldb::eLanguageTypeC_plus_plus_14:
+        m_compiler->getLangOpts().CPlusPlus11 = true;
+        m_compiler->getHeaderSearchOpts().UseLibcxx = true;
+        // fall thru ...
+    case lldb::eLanguageTypeC_plus_plus_03:
+        m_compiler->getLangOpts().CPlusPlus = true;
+        // FIXME: the following language option is a temporary workaround,
+        // to "ask for C++, get ObjC++".  Apple hopes to remove this requirement
+        // on non-Apple platforms, but for now it is needed.
+        m_compiler->getLangOpts().ObjC1 = true;
+        break;
+    case lldb::eLanguageTypeObjC_plus_plus:
+    case lldb::eLanguageTypeUnknown:
+    default:
+        m_compiler->getLangOpts().ObjC1 = true;
+        m_compiler->getLangOpts().ObjC2 = true;
+        m_compiler->getLangOpts().CPlusPlus = true;
+        m_compiler->getLangOpts().CPlusPlus11 = true;
+        m_compiler->getHeaderSearchOpts().UseLibcxx = true;
+        break;
+    }
+
+    m_compiler->getLangOpts().Bool = true;
+    m_compiler->getLangOpts().WChar = true;
+    m_compiler->getLangOpts().Blocks = true;
+    m_compiler->getLangOpts().DebuggerSupport = true; // Features specifically for debugger clients
+    if (expr.DesiredResultType() == Expression::eResultTypeId)
+        m_compiler->getLangOpts().DebuggerCastResultToId = true;
+
+    m_compiler->getLangOpts().CharIsSigned =
+            ArchSpec(m_compiler->getTargetOpts().Triple.c_str()).CharIsSignedByDefault();
+
+    // Spell checking is a nice feature, but it ends up completing a
+    // lot of types that we didn't strictly speaking need to complete.
+    // As a result, we spend a long time parsing and importing debug
+    // information.
+    m_compiler->getLangOpts().SpellChecking = false;
+
+    lldb::ProcessSP process_sp;
+    if (exe_scope)
+        process_sp = exe_scope->CalculateProcess();
+
+    if (process_sp && m_compiler->getLangOpts().ObjC1)
+    {
+        if (process_sp->GetObjCLanguageRuntime())
+        {
+            if (process_sp->GetObjCLanguageRuntime()->GetRuntimeVersion() == ObjCLanguageRuntime::ObjCRuntimeVersions::eAppleObjC_V2)
+                m_compiler->getLangOpts().ObjCRuntime.set(ObjCRuntime::MacOSX, VersionTuple(10, 7));
+            else
+                m_compiler->getLangOpts().ObjCRuntime.set(ObjCRuntime::FragileMacOSX, VersionTuple(10, 7));
+
+            if (process_sp->GetObjCLanguageRuntime()->HasNewLiteralsAndIndexing())
+                m_compiler->getLangOpts().DebuggerObjCLiteral = true;
+        }
+    }
+
+    m_compiler->getLangOpts().ThreadsafeStatics = false;
+    m_compiler->getLangOpts().AccessControl = false; // Debuggers get universal access
+    m_compiler->getLangOpts().DollarIdents = true; // $ indicates a persistent variable name
+
+    // Set CodeGen options
+    m_compiler->getCodeGenOpts().EmitDeclMetadata = true;
+    m_compiler->getCodeGenOpts().InstrumentFunctions = false;
+    m_compiler->getCodeGenOpts().DisableFPElim = true;
+    m_compiler->getCodeGenOpts().OmitLeafFramePointer = false;
+    if (generate_debug_info)
+        m_compiler->getCodeGenOpts().setDebugInfo(CodeGenOptions::FullDebugInfo);
+    else
+        m_compiler->getCodeGenOpts().setDebugInfo(CodeGenOptions::NoDebugInfo);
+
+    // Disable some warnings.
+    m_compiler->getDiagnostics().setSeverityForGroup(clang::diag::Flavor::WarningOrError,
+        "unused-value", clang::diag::Severity::Ignored, SourceLocation());
+    m_compiler->getDiagnostics().setSeverityForGroup(clang::diag::Flavor::WarningOrError,
+        "odr", clang::diag::Severity::Ignored, SourceLocation());
+
+    // Inform the target of the language options
+    //
+    // FIXME: We shouldn't need to do this, the target should be immutable once
+    // created. This complexity should be lifted elsewhere.
+    m_compiler->getTarget().adjust(m_compiler->getLangOpts());
+
+    // 4. Set up the diagnostic buffer for reporting errors
+
+    m_compiler->getDiagnostics().setClient(new clang::TextDiagnosticBuffer);
+
+    // 5. Set up the source management objects inside the compiler
+
+    clang::FileSystemOptions file_system_options;
+    m_file_manager.reset(new clang::FileManager(file_system_options));
+
+    if (!m_compiler->hasSourceManager())
+        m_compiler->createSourceManager(*m_file_manager.get());
+
+    m_compiler->createFileManager();
+    m_compiler->createPreprocessor(TU_Complete);
+    
+    if (ClangModulesDeclVendor *decl_vendor = target_sp->GetClangModulesDeclVendor())
+    {
+        ClangPersistentVariables *clang_persistent_vars = llvm::cast<ClangPersistentVariables>(target_sp->GetPersistentExpressionStateForLanguage(lldb::eLanguageTypeC));
+        std::unique_ptr<PPCallbacks> pp_callbacks(new LLDBPreprocessorCallbacks(*decl_vendor, *clang_persistent_vars));
+        m_pp_callbacks = static_cast<LLDBPreprocessorCallbacks*>(pp_callbacks.get());
+        m_compiler->getPreprocessor().addPPCallbacks(std::move(pp_callbacks));
+    }
+        
+    // 6. Most of this we get from the CompilerInstance, but we
+    // also want to give the context an ExternalASTSource.
+    m_selector_table.reset(new SelectorTable());
+    m_builtin_context.reset(new Builtin::Context());
+
+    std::unique_ptr<clang::ASTContext> ast_context(new ASTContext(m_compiler->getLangOpts(),
+                                                                  m_compiler->getSourceManager(),
+                                                                  m_compiler->getPreprocessor().getIdentifierTable(),
+                                                                  *m_selector_table.get(),
+                                                                  *m_builtin_context.get()));
+    
+    ast_context->InitBuiltinTypes(m_compiler->getTarget());
+
+    ClangExpressionHelper *type_system_helper = dyn_cast<ClangExpressionHelper>(m_expr.GetTypeSystemHelper());
+    ClangExpressionDeclMap *decl_map = type_system_helper->DeclMap();
+
+    if (decl_map)
+    {
+        llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> ast_source(decl_map->CreateProxy());
+        decl_map->InstallASTContext(ast_context.get());
+        ast_context->setExternalSource(ast_source);
+    }
+
+    m_ast_context.reset(new ClangASTContext(m_compiler->getTargetOpts().Triple.c_str()));
+    m_ast_context->setASTContext(ast_context.get());
+    m_compiler->setASTContext(ast_context.release());
+
+    std::string module_name("$__lldb_module");
+
+    m_llvm_context.reset(new LLVMContext());
+    m_code_generator.reset(CreateLLVMCodeGen(m_compiler->getDiagnostics(),
+                                             module_name,
+                                             m_compiler->getHeaderSearchOpts(),
+                                             m_compiler->getPreprocessorOpts(),
+                                             m_compiler->getCodeGenOpts(),
+                                             *m_llvm_context));
+}
+
+ClangExpressionParser::~ClangExpressionParser()
+{
+}
+
+unsigned
+ClangExpressionParser::Parse (Stream &stream)
+{
+    TextDiagnosticBuffer *diag_buf = static_cast<TextDiagnosticBuffer*>(m_compiler->getDiagnostics().getClient());
+
+    diag_buf->FlushDiagnostics (m_compiler->getDiagnostics());
+
+    const char *expr_text = m_expr.Text();
+
+    clang::SourceManager &SourceMgr = m_compiler->getSourceManager();
+    bool created_main_file = false;
+    if (m_compiler->getCodeGenOpts().getDebugInfo() == CodeGenOptions::FullDebugInfo)
+    {
+        std::string temp_source_path;
+
+        int temp_fd = -1;
+        llvm::SmallString<PATH_MAX> result_path;
+        FileSpec tmpdir_file_spec;
+        if (HostInfo::GetLLDBPath(lldb::ePathTypeLLDBTempSystemDir, tmpdir_file_spec))
+        {
+            tmpdir_file_spec.AppendPathComponent("lldb-%%%%%%.expr");
+            temp_source_path = tmpdir_file_spec.GetPath();
+            llvm::sys::fs::createUniqueFile(temp_source_path, temp_fd, result_path);
+        }
+        else
+        {
+            llvm::sys::fs::createTemporaryFile("lldb", "expr", temp_fd, result_path);
+        }
+        
+        if (temp_fd != -1)
+        {
+            lldb_private::File file (temp_fd, true);
+            const size_t expr_text_len = strlen(expr_text);
+            size_t bytes_written = expr_text_len;
+            if (file.Write(expr_text, bytes_written).Success())
+            {
+                if (bytes_written == expr_text_len)
+                {
+                    file.Close();
+                    SourceMgr.setMainFileID(SourceMgr.createFileID(
+                        m_file_manager->getFile(result_path),
+                        SourceLocation(), SrcMgr::C_User));
+                    created_main_file = true;
+                }
+            }
+        }
+    }
+
+    if (!created_main_file)
+    {
+        std::unique_ptr<MemoryBuffer> memory_buffer = MemoryBuffer::getMemBufferCopy(expr_text, __FUNCTION__);
+        SourceMgr.setMainFileID(SourceMgr.createFileID(std::move(memory_buffer)));
+    }
+
+    diag_buf->BeginSourceFile(m_compiler->getLangOpts(), &m_compiler->getPreprocessor());
+
+    ClangExpressionHelper *type_system_helper = dyn_cast<ClangExpressionHelper>(m_expr.GetTypeSystemHelper());
+
+    ASTConsumer *ast_transformer = type_system_helper->ASTTransformer(m_code_generator.get());
+
+    if (ClangExpressionDeclMap *decl_map = type_system_helper->DeclMap())
+        decl_map->InstallCodeGenerator(m_code_generator.get());
+
+    if (ast_transformer)
+    {
+        ast_transformer->Initialize(m_compiler->getASTContext());
+        ParseAST(m_compiler->getPreprocessor(), ast_transformer, m_compiler->getASTContext());
+    }
+    else
+    {
+        m_code_generator->Initialize(m_compiler->getASTContext());
+        ParseAST(m_compiler->getPreprocessor(), m_code_generator.get(), m_compiler->getASTContext());
+    }
+
+    diag_buf->EndSourceFile();
+
+    TextDiagnosticBuffer::const_iterator diag_iterator;
+
+    int num_errors = 0;
+    
+    if (m_pp_callbacks && m_pp_callbacks->hasErrors())
+    {
+        num_errors++;
+        
+        stream.PutCString(m_pp_callbacks->getErrorString().c_str());
+    }
+
+    for (diag_iterator = diag_buf->warn_begin();
+         diag_iterator != diag_buf->warn_end();
+         ++diag_iterator)
+        stream.Printf("warning: %s\n", (*diag_iterator).second.c_str());
+
+    for (diag_iterator = diag_buf->err_begin();
+         diag_iterator != diag_buf->err_end();
+         ++diag_iterator)
+    {
+        num_errors++;
+        stream.Printf("error: %s\n", (*diag_iterator).second.c_str());
+    }
+
+    for (diag_iterator = diag_buf->note_begin();
+         diag_iterator != diag_buf->note_end();
+         ++diag_iterator)
+        stream.Printf("note: %s\n", (*diag_iterator).second.c_str());
+
+    if (!num_errors)
+    {
+        if (type_system_helper->DeclMap() && !type_system_helper->DeclMap()->ResolveUnknownTypes())
+        {
+            stream.Printf("error: Couldn't infer the type of a variable\n");
+            num_errors++;
+        }
+    }
+
+    return num_errors;
+}
+
+static bool FindFunctionInModule (ConstString &mangled_name,
+                                  llvm::Module *module,
+                                  const char *orig_name)
+{
+    for (llvm::Module::iterator fi = module->getFunctionList().begin(), fe = module->getFunctionList().end();
+         fi != fe;
+         ++fi)
+    {
+        if (fi->getName().str().find(orig_name) != std::string::npos)
+        {
+            mangled_name.SetCString(fi->getName().str().c_str());
+            return true;
+        }
+    }
+
+    return false;
+}
+
+Error
+ClangExpressionParser::PrepareForExecution (lldb::addr_t &func_addr,
+                                            lldb::addr_t &func_end,
+                                            lldb::IRExecutionUnitSP &execution_unit_sp,
+                                            ExecutionContext &exe_ctx,
+                                            bool &can_interpret,
+                                            ExecutionPolicy execution_policy)
+{
+	func_addr = LLDB_INVALID_ADDRESS;
+	func_end = LLDB_INVALID_ADDRESS;
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    Error err;
+
+    std::unique_ptr<llvm::Module> llvm_module_ap (m_code_generator->ReleaseModule());
+
+    if (!llvm_module_ap.get())
+    {
+        err.SetErrorToGenericError();
+        err.SetErrorString("IR doesn't contain a module");
+        return err;
+    }
+
+    // Find the actual name of the function (it's often mangled somehow)
+
+    ConstString function_name;
+
+    if (!FindFunctionInModule(function_name, llvm_module_ap.get(), m_expr.FunctionName()))
+    {
+        err.SetErrorToGenericError();
+        err.SetErrorStringWithFormat("Couldn't find %s() in the module", m_expr.FunctionName());
+        return err;
+    }
+    else
+    {
+        if (log)
+            log->Printf("Found function %s for %s", function_name.AsCString(), m_expr.FunctionName());
+    }
+
+    execution_unit_sp.reset(new IRExecutionUnit (m_llvm_context, // handed off here
+                                                 llvm_module_ap, // handed off here
+                                                 function_name,
+                                                 exe_ctx.GetTargetSP(),
+                                                 m_compiler->getTargetOpts().Features));
+
+    ClangExpressionHelper *type_system_helper = dyn_cast<ClangExpressionHelper>(m_expr.GetTypeSystemHelper());
+    ClangExpressionDeclMap *decl_map = type_system_helper->DeclMap(); // result can be NULL
+
+    if (decl_map)
+    {
+        Stream *error_stream = NULL;
+        Target *target = exe_ctx.GetTargetPtr();
+        if (target)
+            error_stream = target->GetDebugger().GetErrorFile().get();
+
+        IRForTarget ir_for_target(decl_map,
+                                  m_expr.NeedsVariableResolution(),
+                                  *execution_unit_sp,
+                                  error_stream,
+                                  function_name.AsCString());
+
+        bool ir_can_run = ir_for_target.runOnModule(*execution_unit_sp->GetModule());
+
+        Error interpret_error;
+        Process *process = exe_ctx.GetProcessPtr();
+
+        bool interpret_function_calls = !process ? false : process->CanInterpretFunctionCalls();
+        can_interpret = IRInterpreter::CanInterpret(*execution_unit_sp->GetModule(), *execution_unit_sp->GetFunction(), interpret_error, interpret_function_calls);
+
+
+        if (!ir_can_run)
+        {
+            err.SetErrorString("The expression could not be prepared to run in the target");
+            return err;
+        }
+
+        if (!can_interpret && execution_policy == eExecutionPolicyNever)
+        {
+            err.SetErrorStringWithFormat("Can't run the expression locally: %s", interpret_error.AsCString());
+            return err;
+        }
+
+        if (!process && execution_policy == eExecutionPolicyAlways)
+        {
+            err.SetErrorString("Expression needed to run in the target, but the target can't be run");
+            return err;
+        }
+
+        if (execution_policy == eExecutionPolicyAlways || !can_interpret)
+        {
+            if (m_expr.NeedsValidation() && process)
+            {
+                if (!process->GetDynamicCheckers())
+                {
+                    DynamicCheckerFunctions *dynamic_checkers = new DynamicCheckerFunctions();
+
+                    StreamString install_errors;
+
+                    if (!dynamic_checkers->Install(install_errors, exe_ctx))
+                    {
+                        if (install_errors.GetString().empty())
+                            err.SetErrorString ("couldn't install checkers, unknown error");
+                        else
+                            err.SetErrorString (install_errors.GetString().c_str());
+
+                        return err;
+                    }
+
+                    process->SetDynamicCheckers(dynamic_checkers);
+
+                    if (log)
+                        log->Printf("== [ClangUserExpression::Evaluate] Finished installing dynamic checkers ==");
+                }
+
+                IRDynamicChecks ir_dynamic_checks(*process->GetDynamicCheckers(), function_name.AsCString());
+
+                if (!ir_dynamic_checks.runOnModule(*execution_unit_sp->GetModule()))
+                {
+                    err.SetErrorToGenericError();
+                    err.SetErrorString("Couldn't add dynamic checks to the expression");
+                    return err;
+                }
+            }
+
+            execution_unit_sp->GetRunnableInfo(err, func_addr, func_end);
+        }
+    }
+    else
+    {
+        execution_unit_sp->GetRunnableInfo(err, func_addr, func_end);
+    }
+
+    return err;
+}
diff --git a/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.h b/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.h
new file mode 100644
index 0000000000000..3c055380b839f
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.h
@@ -0,0 +1,136 @@
+//===-- ClangExpressionParser.h ---------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ClangExpressionParser_h_
+#define liblldb_ClangExpressionParser_h_
+
+#include "lldb/lldb-public.h"
+#include "lldb/Core/ArchSpec.h"
+#include "lldb/Core/ClangForward.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Expression/ExpressionParser.h"
+
+#include <string>
+#include <vector>
+
+namespace lldb_private
+{
+
+class IRExecutionUnit;
+    
+//----------------------------------------------------------------------
+/// @class ClangExpressionParser ClangExpressionParser.h "lldb/Expression/ClangExpressionParser.h"
+/// @brief Encapsulates an instance of Clang that can parse expressions.
+///
+/// ClangExpressionParser is responsible for preparing an instance of
+/// ClangExpression for execution.  ClangExpressionParser uses ClangExpression
+/// as a glorified parameter list, performing the required parsing and
+/// conversion to formats (DWARF bytecode, or JIT compiled machine code)
+/// that can be executed.
+//----------------------------------------------------------------------
+class ClangExpressionParser : public ExpressionParser
+{
+public:
+    //------------------------------------------------------------------
+    /// Constructor
+    ///
+    /// Initializes class variables.
+    ///
+    /// @param[in] exe_scope,
+    ///     If non-NULL, an execution context scope that can help to 
+    ///     correctly create an expression with a valid process for 
+    ///     optional tuning Objective-C runtime support. Can be NULL.
+    ///
+    /// @param[in] expr
+    ///     The expression to be parsed.
+    //------------------------------------------------------------------
+    ClangExpressionParser (ExecutionContextScope *exe_scope,
+                           Expression &expr,
+                           bool generate_debug_info);
+    
+    //------------------------------------------------------------------
+    /// Destructor
+    //------------------------------------------------------------------
+    ~ClangExpressionParser () override;
+    
+    //------------------------------------------------------------------
+    /// Parse a single expression and convert it to IR using Clang.  Don't
+    /// wrap the expression in anything at all.
+    ///
+    /// @param[in] stream
+    ///     The stream to print errors to.
+    ///
+    /// @return
+    ///     The number of errors encountered during parsing.  0 means
+    ///     success.
+    //------------------------------------------------------------------
+    unsigned
+    Parse (Stream &stream) override;
+    
+    //------------------------------------------------------------------
+    /// Ready an already-parsed expression for execution, possibly
+    /// evaluating it statically.
+    ///
+    /// @param[out] func_addr
+    ///     The address to which the function has been written.
+    ///
+    /// @param[out] func_end
+    ///     The end of the function's allocated memory region.  (func_addr
+    ///     and func_end do not delimit an allocated region; the allocated
+    ///     region may begin before func_addr.)
+    ///
+    /// @param[in] execution_unit_sp
+    ///     After parsing, ownership of the execution unit for
+    ///     for the expression is handed to this shared pointer.
+    ///
+    /// @param[in] exe_ctx
+    ///     The execution context to write the function into.
+    ///
+    /// @param[out] evaluated_statically
+    ///     Set to true if the expression could be interpreted statically;
+    ///     untouched otherwise.
+    ///
+    /// @param[out] const_result
+    ///     If the result of the expression is constant, and the
+    ///     expression has no side effects, this is set to the result of the 
+    ///     expression.
+    ///
+    /// @param[in] execution_policy
+    ///     Determines whether the expression must be JIT-compiled, must be
+    ///     evaluated statically, or whether this decision may be made
+    ///     opportunistically.
+    ///
+    /// @return
+    ///     An error code indicating the success or failure of the operation.
+    ///     Test with Success().
+    //------------------------------------------------------------------
+    Error
+    PrepareForExecution (lldb::addr_t &func_addr,
+                         lldb::addr_t &func_end,
+                         lldb::IRExecutionUnitSP &execution_unit_sp,
+                         ExecutionContext &exe_ctx,
+                         bool &can_interpret,
+                         lldb_private::ExecutionPolicy execution_policy) override;
+        
+private:
+    std::unique_ptr<llvm::LLVMContext>       m_llvm_context;         ///< The LLVM context to generate IR into
+    std::unique_ptr<clang::FileManager>      m_file_manager;         ///< The Clang file manager object used by the compiler
+    std::unique_ptr<clang::CompilerInstance> m_compiler;             ///< The Clang compiler used to parse expressions into IR
+    std::unique_ptr<clang::Builtin::Context> m_builtin_context;      ///< Context for Clang built-ins
+    std::unique_ptr<clang::SelectorTable>    m_selector_table;       ///< Selector table for Objective-C methods
+    std::unique_ptr<clang::CodeGenerator>    m_code_generator;       ///< The Clang object that generates IR
+    
+    class LLDBPreprocessorCallbacks;
+    LLDBPreprocessorCallbacks               *m_pp_callbacks;         ///< Called when the preprocessor encounters module imports
+    std::unique_ptr<ClangASTContext>         m_ast_context;
+};
+    
+}
+
+#endif  // liblldb_ClangExpressionParser_h_
diff --git a/source/Plugins/ExpressionParser/Clang/ClangExpressionVariable.cpp b/source/Plugins/ExpressionParser/Clang/ClangExpressionVariable.cpp
new file mode 100644
index 0000000000000..908546b3ecdbd
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangExpressionVariable.cpp
@@ -0,0 +1,76 @@
+//===-- ClangExpressionVariable.cpp -----------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ClangExpressionVariable.h"
+
+#include "clang/AST/ASTContext.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/DataExtractor.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/Value.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/Target/ExecutionContext.h"
+#include "lldb/Target/Process.h"
+
+using namespace lldb_private;
+using namespace clang;
+
+const char *g_clang_expression_variable_kind_name = "ClangExpressionVariable";
+
+ClangExpressionVariable::ClangExpressionVariable(ExecutionContextScope *exe_scope, lldb::ByteOrder byte_order, uint32_t addr_byte_size) :
+    ExpressionVariable(LLVMCastKind::eKindClang),
+    m_parser_vars(),
+    m_jit_vars ()
+{
+    m_flags = EVNone;
+    m_frozen_sp = ValueObjectConstResult::Create (exe_scope, byte_order, addr_byte_size);
+}
+
+ClangExpressionVariable::ClangExpressionVariable (ExecutionContextScope *exe_scope,
+                                                  Value &value,
+                                                  const ConstString &name,
+                                                  uint16_t flags) :
+    ExpressionVariable(LLVMCastKind::eKindClang),
+    m_parser_vars(),
+    m_jit_vars ()
+{
+    m_flags = flags;
+    m_frozen_sp = ValueObjectConstResult::Create (exe_scope, value, name);
+}
+
+ClangExpressionVariable::ClangExpressionVariable (const lldb::ValueObjectSP &valobj_sp) :
+    ExpressionVariable(LLVMCastKind::eKindClang),
+    m_parser_vars(),
+    m_jit_vars ()
+{
+    m_flags = EVNone;
+    m_frozen_sp = valobj_sp;
+}
+
+ClangExpressionVariable::ClangExpressionVariable(ExecutionContextScope *exe_scope,
+                                                 const ConstString &name,
+                                                 const TypeFromUser& user_type,
+                                                 lldb::ByteOrder byte_order,
+                                                 uint32_t addr_byte_size) :
+    ExpressionVariable(LLVMCastKind::eKindClang),
+    m_parser_vars(),
+    m_jit_vars()
+{
+    m_flags = EVNone;
+    m_frozen_sp = ValueObjectConstResult::Create (exe_scope, byte_order, addr_byte_size);
+    SetName (name);
+    SetCompilerType (user_type);
+}
+
+TypeFromUser
+ClangExpressionVariable::GetTypeFromUser()
+{
+    TypeFromUser tfu (m_frozen_sp->GetCompilerType());
+    return tfu;
+}
diff --git a/source/Plugins/ExpressionParser/Clang/ClangExpressionVariable.h b/source/Plugins/ExpressionParser/Clang/ClangExpressionVariable.h
new file mode 100644
index 0000000000000..a4596148f6c74
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangExpressionVariable.h
@@ -0,0 +1,265 @@
+//===-- ClangExpressionVariable.h -------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ClangExpressionVariable_h_
+#define liblldb_ClangExpressionVariable_h_
+
+// C Includes
+#include <signal.h>
+#include <stdint.h>
+#include <string.h>
+
+// C++ Includes
+#include <map>
+#include <string>
+#include <vector>
+
+// Other libraries and framework includes
+#include "llvm/Support/Casting.h"
+
+// Project includes
+#include "lldb/lldb-public.h"
+#include "lldb/Core/ClangForward.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/Value.h"
+#include "lldb/Expression/ExpressionVariable.h"
+#include "lldb/Symbol/TaggedASTType.h"
+
+namespace llvm {
+    class Value;
+}
+
+namespace lldb_private {
+
+class ValueObjectConstResult;
+
+//----------------------------------------------------------------------
+/// @class ClangExpressionVariable ClangExpressionVariable.h "lldb/Expression/ClangExpressionVariable.h"
+/// @brief Encapsulates one variable for the expression parser.
+///
+/// The expression parser uses variables in three different contexts:
+///
+/// First, it stores persistent variables along with the process for use
+/// in expressions.  These persistent variables contain their own data
+/// and are typed.
+///
+/// Second, in an interpreted expression, it stores the local variables
+/// for the expression along with the expression.  These variables
+/// contain their own data and are typed.
+///
+/// Third, in a JIT-compiled expression, it stores the variables that
+/// the expression needs to have materialized and dematerialized at each
+/// execution.  These do not contain their own data but are named and
+/// typed.
+///
+/// This class supports all of these use cases using simple type
+/// polymorphism, and provides necessary support methods.  Its interface
+/// is RTTI-neutral.
+//----------------------------------------------------------------------
+class ClangExpressionVariable : public ExpressionVariable
+{
+public:
+    ClangExpressionVariable(ExecutionContextScope *exe_scope, lldb::ByteOrder byte_order, uint32_t addr_byte_size);
+
+    ClangExpressionVariable (ExecutionContextScope *exe_scope,
+                             Value &value,
+                             const ConstString &name,
+                             uint16_t flags = EVNone);
+    
+    ClangExpressionVariable(const lldb::ValueObjectSP &valobj_sp);
+    
+    ClangExpressionVariable(ExecutionContextScope *exe_scope,
+                            const ConstString &name,
+                            const TypeFromUser& user_type,
+                            lldb::ByteOrder byte_order,
+                            uint32_t addr_byte_size);
+        
+    //----------------------------------------------------------------------
+    /// Utility functions for dealing with ExpressionVariableLists in Clang-specific ways
+    //----------------------------------------------------------------------
+    
+    //----------------------------------------------------------------------
+    /// Finds a variable by NamedDecl in the list.
+    ///
+    /// @param[in] name
+    ///     The name of the requested variable.
+    ///
+    /// @return
+    ///     The variable requested, or NULL if that variable is not in the list.
+    //----------------------------------------------------------------------
+    static ClangExpressionVariable *
+    FindVariableInList (ExpressionVariableList &list, const clang::NamedDecl *decl, uint64_t parser_id)
+    {
+        lldb::ExpressionVariableSP var_sp;
+        for (size_t index = 0, size = list.GetSize(); index < size; ++index)
+        {
+            var_sp = list.GetVariableAtIndex(index);
+            
+            if (ClangExpressionVariable *clang_var = llvm::dyn_cast<ClangExpressionVariable>(var_sp.get()))
+            {
+                ClangExpressionVariable::ParserVars *parser_vars = clang_var->GetParserVars(parser_id);
+                
+                if (parser_vars && parser_vars->m_named_decl == decl)
+                    return clang_var;
+            }
+        }
+        return nullptr;
+    }
+
+    //----------------------------------------------------------------------
+    /// If the variable contains its own data, make a Value point at it.
+    /// If \a exe_ctx in not NULL, the value will be resolved in with
+    /// that execution context.
+    ///
+    /// @param[in] value
+    ///     The value to point at the data.
+    ///
+    /// @param[in] exe_ctx
+    ///     The execution context to use to resolve \a value.
+    ///
+    /// @return
+    ///     True on success; false otherwise (in particular, if this variable
+    ///     does not contain its own data).
+    //----------------------------------------------------------------------
+    bool
+    PointValueAtData(Value &value, ExecutionContext *exe_ctx);
+    
+    //----------------------------------------------------------------------
+    /// The following values should not live beyond parsing
+    //----------------------------------------------------------------------
+    class ParserVars 
+    {
+    public:
+
+        ParserVars() :
+            m_parser_type(),
+            m_named_decl (NULL),
+            m_llvm_value (NULL),
+            m_lldb_value (),
+            m_lldb_var   (),
+            m_lldb_sym   (NULL)
+        {
+        }
+
+        TypeFromParser          m_parser_type;  ///< The type of the variable according to the parser
+        const clang::NamedDecl *m_named_decl;   ///< The Decl corresponding to this variable
+        llvm::Value            *m_llvm_value;   ///< The IR value corresponding to this variable; usually a GlobalValue
+        lldb_private::Value     m_lldb_value;   ///< The value found in LLDB for this variable
+        lldb::VariableSP        m_lldb_var;     ///< The original variable for this variable
+        const lldb_private::Symbol *m_lldb_sym; ///< The original symbol for this variable, if it was a symbol
+    };
+    
+private:
+    typedef std::map <uint64_t, ParserVars> ParserVarMap;
+    ParserVarMap m_parser_vars;
+
+public:
+    //----------------------------------------------------------------------
+    /// Make this variable usable by the parser by allocating space for
+    /// parser-specific variables
+    //----------------------------------------------------------------------
+    void 
+    EnableParserVars(uint64_t parser_id)
+    {
+        m_parser_vars.insert(std::make_pair(parser_id, ParserVars()));
+    }
+    
+    //----------------------------------------------------------------------
+    /// Deallocate parser-specific variables
+    //----------------------------------------------------------------------
+    void
+    DisableParserVars(uint64_t parser_id)
+    {
+        m_parser_vars.erase(parser_id);
+    }
+    
+    //----------------------------------------------------------------------
+    /// Access parser-specific variables
+    //----------------------------------------------------------------------
+    ParserVars *
+    GetParserVars(uint64_t parser_id)
+    {
+        ParserVarMap::iterator i = m_parser_vars.find(parser_id);
+        
+        if (i == m_parser_vars.end())
+            return NULL;
+        else
+            return &i->second;
+    }
+    
+    //----------------------------------------------------------------------
+    /// The following values are valid if the variable is used by JIT code
+    //----------------------------------------------------------------------
+    struct JITVars {
+        JITVars () :
+            m_alignment (0),
+            m_size (0),
+            m_offset (0)
+        {
+        }
+
+        lldb::offset_t   m_alignment; ///< The required alignment of the variable, in bytes
+        size_t  m_size;               ///< The space required for the variable, in bytes
+        lldb::offset_t   m_offset;    ///< The offset of the variable in the struct, in bytes
+    };
+    
+private:
+    typedef std::map <uint64_t, JITVars> JITVarMap;
+    JITVarMap m_jit_vars;
+    
+public:
+    //----------------------------------------------------------------------
+    /// Make this variable usable for materializing for the JIT by allocating 
+    /// space for JIT-specific variables
+    //----------------------------------------------------------------------
+    void 
+    EnableJITVars(uint64_t parser_id)
+    {
+        m_jit_vars.insert(std::make_pair(parser_id, JITVars()));
+    }
+    
+    //----------------------------------------------------------------------
+    /// Deallocate JIT-specific variables
+    //----------------------------------------------------------------------
+    void 
+    DisableJITVars(uint64_t parser_id)
+    {
+        m_jit_vars.erase(parser_id);
+    }
+    
+    JITVars *GetJITVars(uint64_t parser_id)
+    {
+        JITVarMap::iterator i = m_jit_vars.find(parser_id);
+        
+        if (i == m_jit_vars.end())
+            return NULL;
+        else
+            return &i->second;
+    }
+    
+    TypeFromUser
+    GetTypeFromUser ();
+    
+    //------------------------------------------------------------------
+    // llvm casting support
+    //------------------------------------------------------------------
+    static bool classof(const ExpressionVariable *ev)
+    {
+        return ev->getKind() == ExpressionVariable::eKindClang;
+    }
+    
+    //----------------------------------------------------------------------
+    /// Members
+    //----------------------------------------------------------------------        
+    DISALLOW_COPY_AND_ASSIGN (ClangExpressionVariable);
+};
+
+} // namespace lldb_private
+
+#endif  // liblldb_ClangExpressionVariable_h_
diff --git a/source/Plugins/ExpressionParser/Clang/ClangFunctionCaller.cpp b/source/Plugins/ExpressionParser/Clang/ClangFunctionCaller.cpp
new file mode 100644
index 0000000000000..0d0d7475a00e2
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangFunctionCaller.cpp
@@ -0,0 +1,221 @@
+//===-- ClangFunctionCallerCaller.cpp ---------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ClangFunctionCaller.h"
+
+#include "ASTStructExtractor.h"
+#include "ClangExpressionParser.h"
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/RecordLayout.h"
+#include "clang/CodeGen/CodeGenAction.h"
+#include "clang/CodeGen/ModuleBuilder.h"
+#include "clang/Frontend/CompilerInstance.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/ExecutionEngine/ExecutionEngine.h"
+#include "llvm/IR/Module.h"
+
+// Project includes
+#include "lldb/Core/DataExtractor.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/State.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectList.h"
+#include "lldb/Expression/IRExecutionUnit.h"
+#include "lldb/Interpreter/CommandReturnObject.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Symbol/Function.h"
+#include "lldb/Symbol/Type.h"
+#include "lldb/Target/ExecutionContext.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/RegisterContext.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Target/Thread.h"
+#include "lldb/Target/ThreadPlan.h"
+#include "lldb/Target/ThreadPlanCallFunction.h"
+
+using namespace lldb_private;
+
+//----------------------------------------------------------------------
+// ClangFunctionCaller constructor
+//----------------------------------------------------------------------
+ClangFunctionCaller::ClangFunctionCaller 
+(
+    ExecutionContextScope &exe_scope,
+    const CompilerType &return_type, 
+    const Address& functionAddress, 
+    const ValueList &arg_value_list,
+    const char *name
+) :
+    FunctionCaller(exe_scope, return_type, functionAddress, arg_value_list, name),
+    m_type_system_helper (*this)
+{
+    m_jit_process_wp = lldb::ProcessWP(exe_scope.CalculateProcess());
+    // Can't make a ClangFunctionCaller without a process.
+    assert (m_jit_process_wp.lock());
+}
+
+//----------------------------------------------------------------------
+// Destructor
+//----------------------------------------------------------------------
+ClangFunctionCaller::~ClangFunctionCaller()
+{
+}
+
+unsigned
+ClangFunctionCaller::CompileFunction (Stream &errors)
+{
+    if (m_compiled)
+        return 0;
+    
+    // FIXME: How does clang tell us there's no return value?  We need to handle that case.
+    unsigned num_errors = 0;
+    
+    std::string return_type_str (m_function_return_type.GetTypeName().AsCString(""));
+    
+    // Cons up the function we're going to wrap our call in, then compile it...
+    // We declare the function "extern "C"" because the compiler might be in C++
+    // mode which would mangle the name and then we couldn't find it again...
+    m_wrapper_function_text.clear();
+    m_wrapper_function_text.append ("extern \"C\" void ");
+    m_wrapper_function_text.append (m_wrapper_function_name);
+    m_wrapper_function_text.append (" (void *input)\n{\n    struct ");
+    m_wrapper_function_text.append (m_wrapper_struct_name);
+    m_wrapper_function_text.append (" \n  {\n");
+    m_wrapper_function_text.append ("    ");
+    m_wrapper_function_text.append (return_type_str);
+    m_wrapper_function_text.append (" (*fn_ptr) (");
+
+    // Get the number of arguments.  If we have a function type and it is prototyped,
+    // trust that, otherwise use the values we were given.
+
+    // FIXME: This will need to be extended to handle Variadic functions.  We'll need
+    // to pull the defined arguments out of the function, then add the types from the
+    // arguments list for the variable arguments.
+
+    uint32_t num_args = UINT32_MAX;
+    bool trust_function = false;
+    // GetArgumentCount returns -1 for an unprototyped function.
+    CompilerType function_clang_type;
+    if (m_function_ptr)
+    {
+        function_clang_type = m_function_ptr->GetCompilerType();
+        if (function_clang_type)
+        {
+            int num_func_args = function_clang_type.GetFunctionArgumentCount();
+            if (num_func_args >= 0)
+            {
+                trust_function = true;
+                num_args = num_func_args;
+            }
+        }
+    }
+
+    if (num_args == UINT32_MAX)
+        num_args = m_arg_values.GetSize();
+
+    std::string args_buffer;  // This one stores the definition of all the args in "struct caller".
+    std::string args_list_buffer;  // This one stores the argument list called from the structure.
+    for (size_t i = 0; i < num_args; i++)
+    {
+        std::string type_name;
+
+        if (trust_function)
+        {
+            type_name = function_clang_type.GetFunctionArgumentTypeAtIndex(i).GetTypeName().AsCString("");
+        }
+        else
+        {
+            CompilerType clang_qual_type = m_arg_values.GetValueAtIndex(i)->GetCompilerType ();
+            if (clang_qual_type)
+            {
+                type_name = clang_qual_type.GetTypeName().AsCString("");
+            }
+            else
+            {   
+                errors.Printf("Could not determine type of input value %" PRIu64 ".", (uint64_t)i);
+                return 1;
+            }
+        }
+
+        m_wrapper_function_text.append (type_name);
+        if (i < num_args - 1)
+            m_wrapper_function_text.append (", ");
+
+        char arg_buf[32];
+        args_buffer.append ("    ");
+        args_buffer.append (type_name);
+        snprintf(arg_buf, 31, "arg_%" PRIu64, (uint64_t)i);
+        args_buffer.push_back (' ');
+        args_buffer.append (arg_buf);
+        args_buffer.append (";\n");
+
+        args_list_buffer.append ("__lldb_fn_data->");
+        args_list_buffer.append (arg_buf);
+        if (i < num_args - 1)
+            args_list_buffer.append (", ");
+
+    }
+    m_wrapper_function_text.append (");\n"); // Close off the function calling prototype.
+
+    m_wrapper_function_text.append (args_buffer);
+
+    m_wrapper_function_text.append ("    ");
+    m_wrapper_function_text.append (return_type_str);
+    m_wrapper_function_text.append (" return_value;");
+    m_wrapper_function_text.append ("\n  };\n  struct ");
+    m_wrapper_function_text.append (m_wrapper_struct_name);
+    m_wrapper_function_text.append ("* __lldb_fn_data = (struct ");
+    m_wrapper_function_text.append (m_wrapper_struct_name);
+    m_wrapper_function_text.append (" *) input;\n");
+
+    m_wrapper_function_text.append ("  __lldb_fn_data->return_value = __lldb_fn_data->fn_ptr (");
+    m_wrapper_function_text.append (args_list_buffer);
+    m_wrapper_function_text.append (");\n}\n");
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+    if (log)
+        log->Printf ("Expression: \n\n%s\n\n", m_wrapper_function_text.c_str());
+        
+    // Okay, now compile this expression
+    
+    lldb::ProcessSP jit_process_sp(m_jit_process_wp.lock());
+    if (jit_process_sp)
+    {
+        const bool generate_debug_info = true;
+        m_parser.reset(new ClangExpressionParser(jit_process_sp.get(), *this, generate_debug_info));
+        
+        num_errors = m_parser->Parse (errors);
+    }
+    else
+    {
+        errors.Printf("no process - unable to inject function");
+        num_errors = 1;
+    }
+    
+    m_compiled = (num_errors == 0);
+    
+    if (!m_compiled)
+        return num_errors;
+
+    return num_errors;
+}
+
+clang::ASTConsumer *
+ClangFunctionCaller::ClangFunctionCallerHelper::ASTTransformer (clang::ASTConsumer *passthrough)
+{
+    m_struct_extractor.reset(new ASTStructExtractor(passthrough, m_owner.GetWrapperStructName(), m_owner));
+    
+    return m_struct_extractor.get();
+}
diff --git a/source/Plugins/ExpressionParser/Clang/ClangFunctionCaller.h b/source/Plugins/ExpressionParser/Clang/ClangFunctionCaller.h
new file mode 100644
index 0000000000000..3e30f818a9328
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangFunctionCaller.h
@@ -0,0 +1,173 @@
+//===-- ClangFunctionCaller.h -----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ClangFunctionCaller_h_
+#define liblldb_ClangFunctionCaller_h_
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "ClangExpressionHelper.h"
+
+#include "lldb/Core/ClangForward.h"
+#include "lldb/Core/Address.h"
+#include "lldb/Core/ArchSpec.h"
+#include "lldb/Core/Value.h"
+#include "lldb/Core/ValueObjectList.h"
+#include "lldb/Expression/FunctionCaller.h"
+#include "lldb/Symbol/CompilerType.h"
+#include "lldb/Target/Process.h"
+
+namespace lldb_private
+{
+    
+class ASTStructExtractor;
+class ClangExpressionParser;
+
+//----------------------------------------------------------------------
+/// @class ClangFunctionCaller ClangFunctionCaller.h "lldb/Expression/ClangFunctionCaller.h"
+/// @brief Encapsulates a function that can be called.
+///
+/// A given ClangFunctionCaller object can handle a single function signature.
+/// Once constructed, it can set up any number of concurrent calls to
+/// functions with that signature.
+///
+/// It performs the call by synthesizing a structure that contains the pointer
+/// to the function and the arguments that should be passed to that function,
+/// and producing a special-purpose JIT-compiled function that accepts a void*
+/// pointing to this struct as its only argument and calls the function in the 
+/// struct with the written arguments.  This method lets Clang handle the
+/// vagaries of function calling conventions.
+///
+/// The simplest use of the ClangFunctionCaller is to construct it with a
+/// function representative of the signature you want to use, then call
+/// ExecuteFunction(ExecutionContext &, Stream &, Value &).
+///
+/// If you need to reuse the arguments for several calls, you can call
+/// InsertFunction() followed by WriteFunctionArguments(), which will return
+/// the location of the args struct for the wrapper function in args_addr_ref.
+///
+/// If you need to call the function on the thread plan stack, you can also 
+/// call InsertFunction() followed by GetThreadPlanToCallFunction().
+///
+/// Any of the methods that take arg_addr_ptr or arg_addr_ref can be passed
+/// a pointer set to LLDB_INVALID_ADDRESS and new structure will be allocated
+/// and its address returned in that variable.
+/// 
+/// Any of the methods that take arg_addr_ptr can be passed NULL, and the
+/// argument space will be managed for you.
+//----------------------------------------------------------------------    
+class ClangFunctionCaller : public FunctionCaller
+{
+    friend class ASTStructExtractor;
+    
+    class ClangFunctionCallerHelper : public ClangExpressionHelper
+    {
+    public:
+        ClangFunctionCallerHelper (ClangFunctionCaller &owner) :
+            m_owner(owner)
+        {
+        }
+        
+        ~ClangFunctionCallerHelper() override = default;
+        
+        //------------------------------------------------------------------
+        /// Return the object that the parser should use when resolving external
+        /// values.  May be NULL if everything should be self-contained.
+        //------------------------------------------------------------------
+        ClangExpressionDeclMap *
+        DeclMap() override
+        {
+            return NULL;
+        }
+        
+        //------------------------------------------------------------------
+        /// Return the object that the parser should allow to access ASTs.
+        /// May be NULL if the ASTs do not need to be transformed.
+        ///
+        /// @param[in] passthrough
+        ///     The ASTConsumer that the returned transformer should send
+        ///     the ASTs to after transformation.
+        //------------------------------------------------------------------
+        clang::ASTConsumer *
+        ASTTransformer(clang::ASTConsumer *passthrough) override;
+
+    private:
+        ClangFunctionCaller                      &m_owner;
+        std::unique_ptr<ASTStructExtractor> m_struct_extractor;         ///< The class that generates the argument struct layout.
+    };
+
+public:
+    //------------------------------------------------------------------
+    /// Constructor
+    ///
+    /// @param[in] exe_scope
+    ///     An execution context scope that gets us at least a target and 
+    ///     process.
+    ///
+    /// @param[in] ast_context
+    ///     The AST context to evaluate argument types in.
+    ///
+    /// @param[in] return_qualtype
+    ///     An opaque Clang QualType for the function result.  Should be
+    ///     defined in ast_context.
+    ///
+    /// @param[in] function_address
+    ///     The address of the function to call.
+    ///
+    /// @param[in] arg_value_list
+    ///     The default values to use when calling this function.  Can
+    ///     be overridden using WriteFunctionArguments().
+    //------------------------------------------------------------------
+    ClangFunctionCaller (ExecutionContextScope &exe_scope,
+                         const CompilerType &return_type,
+                         const Address& function_address,
+                         const ValueList &arg_value_list,
+                         const char *name);
+    
+    ~ClangFunctionCaller() override;
+
+    //------------------------------------------------------------------
+    /// Compile the wrapper function
+    ///
+    /// @param[in] errors
+    ///     The stream to print parser errors to.
+    ///
+    /// @return
+    ///     The number of errors.
+    //------------------------------------------------------------------
+    unsigned
+    CompileFunction (Stream &errors) override;
+    
+    ExpressionTypeSystemHelper *
+    GetTypeSystemHelper () override
+    {
+        return &m_type_system_helper;
+    }
+
+protected:
+    const char *GetWrapperStructName()
+    {
+        return m_wrapper_struct_name.c_str();
+    }
+
+private:
+    //------------------------------------------------------------------
+    // For ClangFunctionCaller only
+    //------------------------------------------------------------------
+
+    // Note: the parser needs to be destructed before the execution unit, so
+    // declare the execution unit first.
+    ClangFunctionCallerHelper   m_type_system_helper;
+};
+
+} // namespace lldb_private
+
+#endif // liblldb_ClangFunctionCaller_h_
diff --git a/source/Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.cpp b/source/Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.cpp
new file mode 100644
index 0000000000000..05d8a320a5a43
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.cpp
@@ -0,0 +1,731 @@
+//===-- ClangModulesDeclVendor.cpp ------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+#include <mutex>
+
+// Other libraries and framework includes
+#include "clang/Basic/TargetInfo.h"
+#include "clang/Frontend/CompilerInstance.h"
+#include "clang/Frontend/FrontendActions.h"
+#include "clang/Lex/Preprocessor.h"
+#include "clang/Parse/Parser.h"
+#include "clang/Sema/Lookup.h"
+#include "clang/Serialization/ASTReader.h"
+
+// Project includes
+#include "ClangModulesDeclVendor.h"
+
+#include "lldb/Core/Log.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Host/FileSpec.h"
+#include "lldb/Host/Host.h"
+#include "lldb/Host/HostInfo.h"
+#include "lldb/Symbol/CompileUnit.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Utility/LLDBAssert.h"
+
+using namespace lldb_private;
+
+namespace {
+    // Any Clang compiler requires a consumer for diagnostics.  This one stores them as strings
+    // so we can provide them to the user in case a module failed to load.
+    class StoringDiagnosticConsumer : public clang::DiagnosticConsumer
+    {
+    public:
+        StoringDiagnosticConsumer ();
+
+        void
+        HandleDiagnostic(clang::DiagnosticsEngine::Level DiagLevel,
+                         const clang::Diagnostic &info) override;
+        
+        void
+        ClearDiagnostics ();
+        
+        void
+        DumpDiagnostics (Stream &error_stream);
+
+    private:
+        typedef std::pair<clang::DiagnosticsEngine::Level, std::string> IDAndDiagnostic;
+        std::vector<IDAndDiagnostic> m_diagnostics;
+        Log * m_log;
+    };
+    
+    // The private implementation of our ClangModulesDeclVendor.  Contains all the Clang state required
+    // to load modules.
+    class ClangModulesDeclVendorImpl : public ClangModulesDeclVendor
+    {
+    public:
+        ClangModulesDeclVendorImpl(llvm::IntrusiveRefCntPtr<clang::DiagnosticsEngine> &diagnostics_engine,
+                                   llvm::IntrusiveRefCntPtr<clang::CompilerInvocation> &compiler_invocation,
+                                   std::unique_ptr<clang::CompilerInstance> &&compiler_instance,
+                                   std::unique_ptr<clang::Parser> &&parser);
+
+        ~ClangModulesDeclVendorImpl() override = default;
+
+        bool
+        AddModule(ModulePath &path,
+                  ModuleVector *exported_modules,
+                  Stream &error_stream) override;
+
+        bool
+        AddModulesForCompileUnit(CompileUnit &cu,
+                                 ModuleVector &exported_modules,
+                                 Stream &error_stream) override;
+
+        uint32_t
+        FindDecls(const ConstString &name,
+                  bool append,
+                  uint32_t max_matches,
+                  std::vector <clang::NamedDecl*> &decls) override;
+        
+        void
+        ForEachMacro(const ModuleVector &modules,
+                     std::function<bool (const std::string &)> handler) override;
+        
+    private:
+        void
+        ReportModuleExportsHelper (std::set<ClangModulesDeclVendor::ModuleID> &exports,
+                                   clang::Module *module);
+
+        void
+        ReportModuleExports (ModuleVector &exports,
+                             clang::Module *module);
+
+        clang::ModuleLoadResult
+        DoGetModule(clang::ModuleIdPath path, bool make_visible);
+        
+        bool                                                m_enabled = false;
+        
+        llvm::IntrusiveRefCntPtr<clang::DiagnosticsEngine>  m_diagnostics_engine;
+        llvm::IntrusiveRefCntPtr<clang::CompilerInvocation> m_compiler_invocation;
+        std::unique_ptr<clang::CompilerInstance>            m_compiler_instance;
+        std::unique_ptr<clang::Parser>                      m_parser;
+        size_t                                              m_source_location_index = 0; // used to give name components fake SourceLocations
+
+        typedef std::vector<ConstString>                    ImportedModule;
+        typedef std::map<ImportedModule, clang::Module *>   ImportedModuleMap;
+        typedef std::set<ModuleID>                          ImportedModuleSet;
+        ImportedModuleMap                                   m_imported_modules;
+        ImportedModuleSet                                   m_user_imported_modules;
+    };
+} // anonymous namespace
+
+StoringDiagnosticConsumer::StoringDiagnosticConsumer ()
+{
+    m_log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS);
+}
+
+void
+StoringDiagnosticConsumer::HandleDiagnostic (clang::DiagnosticsEngine::Level DiagLevel, const clang::Diagnostic &info)
+{
+    llvm::SmallVector<char, 256> diagnostic_string;
+    
+    info.FormatDiagnostic(diagnostic_string);
+    
+    m_diagnostics.push_back(IDAndDiagnostic(DiagLevel, std::string(diagnostic_string.data(), diagnostic_string.size())));
+}
+
+void
+StoringDiagnosticConsumer::ClearDiagnostics ()
+{
+    m_diagnostics.clear();
+}
+
+void
+StoringDiagnosticConsumer::DumpDiagnostics (Stream &error_stream)
+{
+    for (IDAndDiagnostic &diag : m_diagnostics)
+    {
+        switch (diag.first)
+        {
+            default:
+                error_stream.PutCString(diag.second.c_str());
+                error_stream.PutChar('\n');
+                break;
+            case clang::DiagnosticsEngine::Level::Ignored:
+                break;
+        }
+    }
+}
+
+static FileSpec
+GetResourceDir ()
+{
+    static FileSpec g_cached_resource_dir;
+    
+    static std::once_flag g_once_flag;
+    
+    std::call_once(g_once_flag, [](){
+        HostInfo::GetLLDBPath (lldb::ePathTypeClangDir, g_cached_resource_dir);
+    });
+    
+    return g_cached_resource_dir;
+}
+
+ClangModulesDeclVendor::ClangModulesDeclVendor()
+{
+}
+
+ClangModulesDeclVendor::~ClangModulesDeclVendor()
+{
+}
+
+ClangModulesDeclVendorImpl::ClangModulesDeclVendorImpl(llvm::IntrusiveRefCntPtr<clang::DiagnosticsEngine> &diagnostics_engine,
+                                                       llvm::IntrusiveRefCntPtr<clang::CompilerInvocation> &compiler_invocation,
+                                                       std::unique_ptr<clang::CompilerInstance> &&compiler_instance,
+                                                       std::unique_ptr<clang::Parser> &&parser) :
+    ClangModulesDeclVendor(),
+    m_diagnostics_engine(diagnostics_engine),
+    m_compiler_invocation(compiler_invocation),
+    m_compiler_instance(std::move(compiler_instance)),
+    m_parser(std::move(parser)),
+    m_imported_modules()
+{
+}
+
+void
+ClangModulesDeclVendorImpl::ReportModuleExportsHelper (std::set<ClangModulesDeclVendor::ModuleID> &exports,
+                                                       clang::Module *module)
+{
+    if (exports.count(reinterpret_cast<ClangModulesDeclVendor::ModuleID>(module)))
+        return;
+    
+    exports.insert(reinterpret_cast<ClangModulesDeclVendor::ModuleID>(module));
+    
+    llvm::SmallVector<clang::Module*, 2> sub_exports;
+    
+    module->getExportedModules(sub_exports);
+
+    for (clang::Module *module : sub_exports)
+    {
+        ReportModuleExportsHelper(exports, module);
+    }
+}
+
+void
+ClangModulesDeclVendorImpl::ReportModuleExports (ClangModulesDeclVendor::ModuleVector &exports,
+                                                 clang::Module *module)
+{
+    std::set<ClangModulesDeclVendor::ModuleID> exports_set;
+    
+    ReportModuleExportsHelper(exports_set, module);
+    
+    for (ModuleID module : exports_set)
+    {
+        exports.push_back(module);
+    }
+}
+
+bool
+ClangModulesDeclVendorImpl::AddModule(ModulePath &path,
+                                      ModuleVector *exported_modules,
+                                      Stream &error_stream)
+{
+    // Fail early.
+    
+    if (m_compiler_instance->hadModuleLoaderFatalFailure())
+    {
+        error_stream.PutCString("error: Couldn't load a module because the module loader is in a fatal state.\n");
+        return false;
+    }
+    
+    // Check if we've already imported this module.
+    
+    std::vector<ConstString> imported_module;
+    
+    for (ConstString path_component : path)
+    {
+        imported_module.push_back(path_component);
+    }
+    
+    {
+        ImportedModuleMap::iterator mi = m_imported_modules.find(imported_module);
+        
+        if (mi != m_imported_modules.end())
+        {
+            if (exported_modules)
+            {
+                ReportModuleExports(*exported_modules, mi->second);
+            }
+            return true;
+        }
+    }
+    
+    if (!m_compiler_instance->getPreprocessor().getHeaderSearchInfo().lookupModule(path[0].GetStringRef()))
+    {
+        error_stream.Printf("error: Header search couldn't locate module %s\n", path[0].AsCString());
+        return false;
+    }
+    
+    llvm::SmallVector<std::pair<clang::IdentifierInfo *, clang::SourceLocation>, 4> clang_path;
+    
+    {
+        clang::SourceManager &source_manager = m_compiler_instance->getASTContext().getSourceManager();
+        
+        for (ConstString path_component : path)
+        {
+            clang_path.push_back(std::make_pair(&m_compiler_instance->getASTContext().Idents.get(path_component.GetStringRef()),
+                                                source_manager.getLocForStartOfFile(source_manager.getMainFileID()).getLocWithOffset(m_source_location_index++)));
+        }
+    }
+    
+    StoringDiagnosticConsumer *diagnostic_consumer = static_cast<StoringDiagnosticConsumer *>(m_compiler_instance->getDiagnostics().getClient());
+    
+    diagnostic_consumer->ClearDiagnostics();
+    
+    clang::Module *top_level_module = DoGetModule(clang_path.front(), false);
+    
+    if (!top_level_module)
+    {
+        diagnostic_consumer->DumpDiagnostics(error_stream);
+        error_stream.Printf("error: Couldn't load top-level module %s\n", path[0].AsCString());
+        return false;
+    }
+    
+    clang::Module *submodule = top_level_module;
+    
+    for (size_t ci = 1; ci < path.size(); ++ci)
+    {
+        llvm::StringRef component = path[ci].GetStringRef();
+        submodule = submodule->findSubmodule(component.str());
+        if (!submodule)
+        {
+            diagnostic_consumer->DumpDiagnostics(error_stream);
+            error_stream.Printf("error: Couldn't load submodule %s\n", component.str().c_str());
+            return false;
+        }
+    }
+    
+    clang::Module *requested_module = DoGetModule(clang_path, true);
+    
+    if (requested_module != nullptr)
+    {
+        if (exported_modules)
+        {
+            ReportModuleExports(*exported_modules, requested_module);
+        }
+
+        m_imported_modules[imported_module] = requested_module;
+        
+        m_enabled = true;
+        
+        return true;
+    }
+    
+    return false;
+}
+
+bool
+ClangModulesDeclVendor::LanguageSupportsClangModules (lldb::LanguageType language)
+{
+    switch (language)
+    {
+    default:
+        return false;
+    // C++ and friends to be added
+    case lldb::LanguageType::eLanguageTypeC:
+    case lldb::LanguageType::eLanguageTypeC11:
+    case lldb::LanguageType::eLanguageTypeC89:
+    case lldb::LanguageType::eLanguageTypeC99:
+    case lldb::LanguageType::eLanguageTypeObjC:
+        return true;
+    }
+}
+
+bool
+ClangModulesDeclVendorImpl::AddModulesForCompileUnit(CompileUnit &cu,
+                                                     ClangModulesDeclVendor::ModuleVector &exported_modules,
+                                                     Stream &error_stream)
+{
+    if (LanguageSupportsClangModules(cu.GetLanguage()))
+    {
+        std::vector<ConstString> imported_modules = cu.GetImportedModules();
+        
+        for (ConstString imported_module : imported_modules)
+        {
+            std::vector<ConstString> path;
+            
+            path.push_back(imported_module);
+            
+            if (!AddModule(path, &exported_modules, error_stream))
+            {
+                return false;
+            }
+        }
+        
+        return true;
+    }
+
+    return true;
+}
+
+// ClangImporter::lookupValue
+
+uint32_t
+ClangModulesDeclVendorImpl::FindDecls (const ConstString &name,
+                                       bool append,
+                                       uint32_t max_matches,
+                                       std::vector <clang::NamedDecl*> &decls)
+{
+    if (!m_enabled)
+    {
+        return 0;
+    }
+
+    if (!append)
+        decls.clear();
+    
+    clang::IdentifierInfo &ident = m_compiler_instance->getASTContext().Idents.get(name.GetStringRef());
+    
+    clang::LookupResult lookup_result(m_compiler_instance->getSema(),
+                                      clang::DeclarationName(&ident),
+                                      clang::SourceLocation(),
+                                      clang::Sema::LookupOrdinaryName);
+    
+    m_compiler_instance->getSema().LookupName(lookup_result, m_compiler_instance->getSema().getScopeForContext(m_compiler_instance->getASTContext().getTranslationUnitDecl()));
+    
+    uint32_t num_matches = 0;
+    
+    for (clang::NamedDecl *named_decl : lookup_result)
+    {
+        if (num_matches >= max_matches)
+            return num_matches;
+        
+        decls.push_back(named_decl);
+        ++num_matches;
+    }
+    
+    return num_matches;
+}
+
+void
+ClangModulesDeclVendorImpl::ForEachMacro(const ClangModulesDeclVendor::ModuleVector &modules,
+                                         std::function<bool (const std::string &)> handler)
+{
+    if (!m_enabled)
+    {
+        return;
+    }
+    
+    typedef std::map<ModuleID, ssize_t> ModulePriorityMap;
+    ModulePriorityMap module_priorities;
+    
+    ssize_t priority = 0;
+    
+    for (ModuleID module : modules)
+    {
+        module_priorities[module] = priority++;
+    }
+    
+    if (m_compiler_instance->getPreprocessor().getExternalSource())
+    {
+        m_compiler_instance->getPreprocessor().getExternalSource()->ReadDefinedMacros();
+    }
+    
+    for (clang::Preprocessor::macro_iterator mi = m_compiler_instance->getPreprocessor().macro_begin(),
+                                             me = m_compiler_instance->getPreprocessor().macro_end();
+         mi != me;
+         ++mi)
+    {
+        const clang::IdentifierInfo *ii = nullptr;
+        
+        {
+            if (clang::IdentifierInfoLookup *lookup = m_compiler_instance->getPreprocessor().getIdentifierTable().getExternalIdentifierLookup())
+            {
+                lookup->get(mi->first->getName());
+            }
+            if (!ii)
+            {
+                ii = mi->first;
+            }
+        }
+        
+        ssize_t found_priority = -1;
+        clang::MacroInfo *macro_info = nullptr;
+        
+        for (clang::ModuleMacro *module_macro : m_compiler_instance->getPreprocessor().getLeafModuleMacros(ii))
+        {
+            clang::Module *module = module_macro->getOwningModule();
+            
+            {
+                ModulePriorityMap::iterator pi = module_priorities.find(reinterpret_cast<ModuleID>(module));
+                
+                if (pi != module_priorities.end() && pi->second > found_priority)
+                {
+                    macro_info = module_macro->getMacroInfo();
+                    found_priority = pi->second;
+                }
+            }
+            
+            clang::Module *top_level_module = module->getTopLevelModule();
+            
+            if (top_level_module != module)
+            {
+                ModulePriorityMap::iterator pi = module_priorities.find(reinterpret_cast<ModuleID>(top_level_module));
+                
+                if ((pi != module_priorities.end()) && pi->second > found_priority)
+                {
+                    macro_info = module_macro->getMacroInfo();
+                    found_priority = pi->second;
+                }
+            }
+        }
+        
+        if (macro_info)
+        {
+            std::string macro_expansion = "#define ";
+            macro_expansion.append(mi->first->getName().str().c_str());
+            
+            {
+                if (macro_info->isFunctionLike())
+                {
+                    macro_expansion.append("(");
+                    
+                    bool first_arg = true;
+                    
+                    for (clang::MacroInfo::arg_iterator ai = macro_info->arg_begin(),
+                                                        ae = macro_info->arg_end();
+                         ai != ae;
+                         ++ai)
+                    {
+                        if (!first_arg)
+                        {
+                            macro_expansion.append(", ");
+                        }
+                        else
+                        {
+                            first_arg = false;
+                        }
+                        
+                        macro_expansion.append((*ai)->getName().str());
+                    }
+                    
+                    if (macro_info->isC99Varargs())
+                    {
+                        if (first_arg)
+                        {
+                            macro_expansion.append("...");
+                        }
+                        else
+                        {
+                            macro_expansion.append(", ...");
+                        }
+                    }
+                    else if (macro_info->isGNUVarargs())
+                    {
+                        macro_expansion.append("...");
+                    }
+                    
+                    macro_expansion.append(")");
+                }
+                
+                macro_expansion.append(" ");
+
+                bool first_token = true;
+                
+                for (clang::MacroInfo::tokens_iterator ti = macro_info->tokens_begin(),
+                     te = macro_info->tokens_end();
+                     ti != te;
+                     ++ti)
+                {
+                    if (!first_token)
+                    {
+                        macro_expansion.append(" ");
+                    }
+                    else
+                    {
+                        first_token = false;
+                    }
+                    
+                    if (ti->isLiteral())
+                    {
+                        if (const char *literal_data = ti->getLiteralData())
+                        {
+                            std::string token_str(literal_data, ti->getLength());
+                            macro_expansion.append(token_str);
+                        }
+                        else
+                        {
+                            bool invalid = false;
+                            const char *literal_source = m_compiler_instance->getSourceManager().getCharacterData(ti->getLocation(), &invalid);
+                            
+                            if (invalid)
+                            {
+                                lldbassert(!"Unhandled token kind");
+                                macro_expansion.append("<unknown literal value>");
+                            }
+                            else
+                            {
+                                macro_expansion.append(std::string(literal_source, ti->getLength()));
+                            }
+                        }
+                    }
+                    else if (const char *punctuator_spelling = clang::tok::getPunctuatorSpelling(ti->getKind()))
+                    {
+                        macro_expansion.append(punctuator_spelling);
+                    }
+                    else if (const char *keyword_spelling = clang::tok::getKeywordSpelling(ti->getKind()))
+                    {
+                        macro_expansion.append(keyword_spelling);
+                    }
+                    else
+                    {
+                        switch (ti->getKind())
+                        {
+                            case clang::tok::TokenKind::identifier:
+                                macro_expansion.append(ti->getIdentifierInfo()->getName().str());
+                                break;
+                            case clang::tok::TokenKind::raw_identifier:
+                                macro_expansion.append(ti->getRawIdentifier().str());
+                            default:
+                                macro_expansion.append(ti->getName());
+                                break;
+                        }
+                    }
+                }
+                
+                if (handler(macro_expansion))
+                {
+                    return;
+                }
+            }
+        }
+    }
+}
+
+clang::ModuleLoadResult
+ClangModulesDeclVendorImpl::DoGetModule(clang::ModuleIdPath path,
+                                        bool make_visible)
+{
+    clang::Module::NameVisibilityKind visibility = make_visible ? clang::Module::AllVisible : clang::Module::Hidden;
+    
+    const bool is_inclusion_directive = false;
+    
+    return m_compiler_instance->loadModule(path.front().second, path, visibility, is_inclusion_directive);
+}
+
+static const char *ModuleImportBufferName = "LLDBModulesMemoryBuffer";
+
+lldb_private::ClangModulesDeclVendor *
+ClangModulesDeclVendor::Create(Target &target)
+{
+    // FIXME we should insure programmatically that the expression parser's compiler and the modules runtime's
+    // compiler are both initialized in the same way – preferably by the same code.
+    
+    if (!target.GetPlatform()->SupportsModules())
+        return nullptr;
+    
+    const ArchSpec &arch = target.GetArchitecture();
+    
+    std::vector<std::string> compiler_invocation_arguments =
+    {
+        "-fmodules",
+        "-fcxx-modules",
+        "-fsyntax-only",
+        "-femit-all-decls",
+        "-target", arch.GetTriple().str(),
+        "-fmodules-validate-system-headers",
+        "-Werror=non-modular-include-in-framework-module"
+    };
+    
+    target.GetPlatform()->AddClangModuleCompilationOptions(&target, compiler_invocation_arguments);
+
+    compiler_invocation_arguments.push_back(ModuleImportBufferName);
+
+    // Add additional search paths with { "-I", path } or { "-F", path } here.
+   
+    {
+        llvm::SmallString<128> DefaultModuleCache;
+        const bool erased_on_reboot = false;
+        llvm::sys::path::system_temp_directory(erased_on_reboot, DefaultModuleCache);
+        llvm::sys::path::append(DefaultModuleCache, "org.llvm.clang");
+        llvm::sys::path::append(DefaultModuleCache, "ModuleCache");
+        std::string module_cache_argument("-fmodules-cache-path=");
+        module_cache_argument.append(DefaultModuleCache.str().str());
+        compiler_invocation_arguments.push_back(module_cache_argument);
+    }
+    
+    FileSpecList &module_search_paths = target.GetClangModuleSearchPaths();
+    
+    for (size_t spi = 0, spe = module_search_paths.GetSize(); spi < spe; ++spi)
+    {
+        const FileSpec &search_path = module_search_paths.GetFileSpecAtIndex(spi);
+        
+        std::string search_path_argument = "-I";
+        search_path_argument.append(search_path.GetPath());
+        
+        compiler_invocation_arguments.push_back(search_path_argument);
+    }
+    
+    {
+        FileSpec clang_resource_dir = GetResourceDir();
+        
+        if (clang_resource_dir.IsDirectory())
+        {
+            compiler_invocation_arguments.push_back("-resource-dir");
+            compiler_invocation_arguments.push_back(clang_resource_dir.GetPath());
+        }
+    }
+    
+    llvm::IntrusiveRefCntPtr<clang::DiagnosticsEngine> diagnostics_engine = clang::CompilerInstance::createDiagnostics(new clang::DiagnosticOptions,
+                                                                                                                       new StoringDiagnosticConsumer);
+    
+    std::vector<const char *> compiler_invocation_argument_cstrs;
+    
+    for (const std::string &arg : compiler_invocation_arguments) {
+        compiler_invocation_argument_cstrs.push_back(arg.c_str());
+    }
+    
+    llvm::IntrusiveRefCntPtr<clang::CompilerInvocation> invocation(clang::createInvocationFromCommandLine(compiler_invocation_argument_cstrs, diagnostics_engine));
+    
+    if (!invocation)
+        return nullptr;
+    
+    std::unique_ptr<llvm::MemoryBuffer> source_buffer = llvm::MemoryBuffer::getMemBuffer("extern int __lldb __attribute__((unavailable));",
+                                                                                         ModuleImportBufferName);
+    
+    invocation->getPreprocessorOpts().addRemappedFile(ModuleImportBufferName, source_buffer.release());
+    
+    std::unique_ptr<clang::CompilerInstance> instance(new clang::CompilerInstance);
+    
+    instance->setDiagnostics(diagnostics_engine.get());
+    instance->setInvocation(invocation.get());
+    
+    std::unique_ptr<clang::FrontendAction> action(new clang::SyntaxOnlyAction);
+    
+    instance->setTarget(clang::TargetInfo::CreateTargetInfo(*diagnostics_engine, instance->getInvocation().TargetOpts));
+    
+    if (!instance->hasTarget())
+        return nullptr;
+    
+    instance->getTarget().adjust(instance->getLangOpts());
+    
+    if (!action->BeginSourceFile(*instance, instance->getFrontendOpts().Inputs[0]))
+        return nullptr;
+    
+    instance->getPreprocessor().enableIncrementalProcessing();
+    
+    instance->createModuleManager();
+    
+    instance->createSema(action->getTranslationUnitKind(), nullptr);
+    
+    const bool skipFunctionBodies = false;
+    std::unique_ptr<clang::Parser> parser(new clang::Parser(instance->getPreprocessor(), instance->getSema(), skipFunctionBodies));
+    
+    instance->getPreprocessor().EnterMainSourceFile();
+    parser->Initialize();
+    
+    clang::Parser::DeclGroupPtrTy parsed;
+    
+    while (!parser->ParseTopLevelDecl(parsed));
+    
+    return new ClangModulesDeclVendorImpl (diagnostics_engine, invocation, std::move(instance), std::move(parser));
+}
diff --git a/source/Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.h b/source/Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.h
new file mode 100644
index 0000000000000..df3b20550f9a0
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.h
@@ -0,0 +1,128 @@
+//===-- ClangModulesDeclVendor.h --------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ClangModulesDeclVendor_h
+#define liblldb_ClangModulesDeclVendor_h
+
+#include "lldb/Core/ArchSpec.h"
+#include "lldb/Core/ClangForward.h"
+#include "lldb/Symbol/DeclVendor.h"
+#include "lldb/Target/Platform.h"
+
+#include <set>
+#include <vector>
+
+namespace lldb_private
+{
+    
+class ClangModulesDeclVendor : public DeclVendor
+{
+public:
+    //------------------------------------------------------------------
+    // Constructors and Destructors
+    //------------------------------------------------------------------
+    ClangModulesDeclVendor();
+    
+    ~ClangModulesDeclVendor() override;
+    
+    static ClangModulesDeclVendor *
+    Create(Target &target);
+    
+    typedef std::vector<ConstString> ModulePath;
+    typedef uintptr_t                ModuleID;
+    typedef std::vector<ModuleID>    ModuleVector;
+    
+    //------------------------------------------------------------------
+    /// Add a module to the list of modules to search.
+    ///
+    /// @param[in] path
+    ///     The path to the exact module to be loaded.  E.g., if the desired
+    ///     module is std.io, then this should be { "std", "io" }.
+    ///
+    /// @param[in] exported_modules
+    ///     If non-NULL, a pointer to a vector to populate with the ID of every
+    ///     module that is re-exported by the specified module.
+    ///
+    /// @param[in] error_stream
+    ///     A stream to populate with the output of the Clang parser when
+    ///     it tries to load the module.
+    ///
+    /// @return
+    ///     True if the module could be loaded; false if not.  If the
+    ///     compiler encountered a fatal error during a previous module
+    ///     load, then this will always return false for this ModuleImporter.
+    //------------------------------------------------------------------
+    virtual bool
+    AddModule(ModulePath &path,
+              ModuleVector *exported_modules,
+              Stream &error_stream) = 0;
+    
+    //------------------------------------------------------------------
+    /// Add all modules referred to in a given compilation unit to the list
+    /// of modules to search.
+    ///
+    /// @param[in] cu
+    ///     The compilation unit to scan for imported modules.
+    ///
+    /// @param[in] exported_modules
+    ///     A vector to populate with the ID of each module loaded (directly
+    ///     and via re-exports) in this way.
+    ///
+    /// @param[in] error_stream
+    ///     A stream to populate with the output of the Clang parser when
+    ///     it tries to load the modules.
+    ///
+    /// @return
+    ///     True if all modules referred to by the compilation unit could be
+    ///     loaded; false if one could not be loaded.  If the compiler
+    ///     encountered a fatal error during a previous module
+    ///     load, then this will always return false for this ModuleImporter.
+    //------------------------------------------------------------------
+    virtual bool
+    AddModulesForCompileUnit(CompileUnit &cu,
+                             ModuleVector &exported_modules,
+                             Stream &error_stream) = 0;
+
+    //------------------------------------------------------------------
+    /// Enumerate all the macros that are defined by a given set of modules
+    /// that are already imported.
+    ///
+    /// @param[in] modules
+    ///     The unique IDs for all modules to query.  Later modules have higher
+    ///     priority, just as if you @imported them in that order.  This matters
+    ///     if module A #defines a macro and module B #undefs it.
+    ///
+    /// @param[in] handler
+    ///     A function to call with the text of each #define (including the
+    ///     #define directive).  #undef directives are not included; we simply
+    ///     elide any corresponding #define.  If this function returns true,
+    ///     we stop the iteration immediately.
+    //------------------------------------------------------------------
+    virtual void
+    ForEachMacro(const ModuleVector &modules,
+                 std::function<bool (const std::string &)> handler) = 0;
+    
+    //------------------------------------------------------------------
+    /// Query whether Clang supports modules for a particular language.
+    /// LLDB uses this to decide whether to try to find the modules loaded
+    /// by a gaiven compile unit.
+    ///
+    /// @param[in] language
+    ///     The language to query for.
+    ///
+    /// @return
+    ///     True if Clang has modules for the given language.
+    //------------------------------------------------------------------
+    static bool
+    LanguageSupportsClangModules (lldb::LanguageType language);
+};
+    
+} // namespace lldb_private
+
+#endif // liblldb_ClangModulesDeclVendor_h
diff --git a/source/Plugins/ExpressionParser/Clang/ClangPersistentVariables.cpp b/source/Plugins/ExpressionParser/Clang/ClangPersistentVariables.cpp
new file mode 100644
index 0000000000000..9bf9d435d7ead
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangPersistentVariables.cpp
@@ -0,0 +1,84 @@
+//===-- ClangPersistentVariables.cpp ----------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ClangPersistentVariables.h"
+
+#include "lldb/Core/DataExtractor.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Core/Value.h"
+
+#include "llvm/ADT/StringMap.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+ClangPersistentVariables::ClangPersistentVariables () :
+    lldb_private::PersistentExpressionState(LLVMCastKind::eKindClang),
+    m_next_persistent_variable_id (0)
+{
+}
+
+ExpressionVariableSP
+ClangPersistentVariables::CreatePersistentVariable (const lldb::ValueObjectSP &valobj_sp)
+{
+    return AddNewlyConstructedVariable(new ClangExpressionVariable(valobj_sp));
+}
+
+ExpressionVariableSP
+ClangPersistentVariables::CreatePersistentVariable (ExecutionContextScope *exe_scope, 
+                                                    const ConstString &name, 
+                                                    const CompilerType& compiler_type,
+                                                    lldb::ByteOrder byte_order, 
+                                                    uint32_t addr_byte_size)
+{
+    return AddNewlyConstructedVariable(new ClangExpressionVariable(exe_scope, name, compiler_type, byte_order, addr_byte_size));
+}
+
+void
+ClangPersistentVariables::RemovePersistentVariable (lldb::ExpressionVariableSP variable)
+{
+    RemoveVariable(variable);
+    
+    const char *name = variable->GetName().AsCString();
+    
+    if (*name != '$')
+        return;
+    name++;
+    
+    if (strtoul(name, NULL, 0) == m_next_persistent_variable_id - 1)
+        m_next_persistent_variable_id--;
+}
+
+ConstString
+ClangPersistentVariables::GetNextPersistentVariableName ()
+{
+    char name_cstr[256];
+    ::snprintf (name_cstr, sizeof(name_cstr), "$%u", m_next_persistent_variable_id++);
+    ConstString name(name_cstr);
+    return name;
+}
+
+void
+ClangPersistentVariables::RegisterPersistentType (const ConstString &name,
+                                                  clang::TypeDecl *type_decl)
+{
+    m_persistent_types.insert(std::pair<const char*, clang::TypeDecl*>(name.GetCString(), type_decl));
+}
+
+clang::TypeDecl *
+ClangPersistentVariables::GetPersistentType (const ConstString &name)
+{
+    PersistentTypeMap::const_iterator i = m_persistent_types.find(name.GetCString());
+    
+    if (i == m_persistent_types.end())
+        return NULL;
+    else
+        return i->second;
+}
diff --git a/source/Plugins/ExpressionParser/Clang/ClangPersistentVariables.h b/source/Plugins/ExpressionParser/Clang/ClangPersistentVariables.h
new file mode 100644
index 0000000000000..0e03d013d0490
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangPersistentVariables.h
@@ -0,0 +1,106 @@
+//===-- ClangPersistentVariables.h ------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ClangPersistentVariables_h_
+#define liblldb_ClangPersistentVariables_h_
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+#include "llvm/ADT/DenseMap.h"
+
+// Project includes
+#include "ClangExpressionVariable.h"
+#include "ClangModulesDeclVendor.h"
+
+#include "lldb/Expression/ExpressionVariable.h"
+
+namespace lldb_private
+{
+    
+//----------------------------------------------------------------------
+/// @class ClangPersistentVariables ClangPersistentVariables.h "lldb/Expression/ClangPersistentVariables.h"
+/// @brief Manages persistent values that need to be preserved between expression invocations.
+///
+/// A list of variables that can be accessed and updated by any expression.  See
+/// ClangPersistentVariable for more discussion.  Also provides an increasing,
+/// 0-based counter for naming result variables.
+//----------------------------------------------------------------------
+class ClangPersistentVariables : public PersistentExpressionState
+{
+public:
+    ClangPersistentVariables();
+
+    ~ClangPersistentVariables() override = default;
+
+    //------------------------------------------------------------------
+    // llvm casting support
+    //------------------------------------------------------------------
+    static bool classof(const PersistentExpressionState *pv)
+    {
+        return pv->getKind() == PersistentExpressionState::eKindClang;
+    }
+
+    lldb::ExpressionVariableSP
+    CreatePersistentVariable (const lldb::ValueObjectSP &valobj_sp) override;
+
+    lldb::ExpressionVariableSP
+    CreatePersistentVariable (ExecutionContextScope *exe_scope,
+                              const ConstString &name, 
+                              const CompilerType& compiler_type, 
+                              lldb::ByteOrder byte_order, 
+                              uint32_t addr_byte_size) override;
+
+    //----------------------------------------------------------------------
+    /// Return the next entry in the sequence of strings "$0", "$1", ... for
+    /// use naming persistent expression convenience variables.
+    ///
+    /// @return
+    ///     A string that contains the next persistent variable name.
+    //----------------------------------------------------------------------
+    ConstString
+    GetNextPersistentVariableName () override;
+    
+    void
+    RemovePersistentVariable (lldb::ExpressionVariableSP variable) override;
+    
+    lldb::addr_t
+    LookupSymbol (const ConstString &name) override { return LLDB_INVALID_ADDRESS; }
+
+    void
+    RegisterPersistentType (const ConstString &name,
+                            clang::TypeDecl *tag_decl);
+    
+    clang::TypeDecl *
+    GetPersistentType (const ConstString &name);
+    
+    void
+    AddHandLoadedClangModule(ClangModulesDeclVendor::ModuleID module)
+    {
+        m_hand_loaded_clang_modules.push_back(module);
+    }
+    
+    const ClangModulesDeclVendor::ModuleVector &GetHandLoadedClangModules()
+    {
+        return m_hand_loaded_clang_modules;
+    }
+    
+private:
+    uint32_t                                                m_next_persistent_variable_id;  ///< The counter used by GetNextResultName().
+    
+    typedef llvm::DenseMap<const char *, clang::TypeDecl *> PersistentTypeMap;
+    PersistentTypeMap                                       m_persistent_types;             ///< The persistent types declared by the user.
+    
+    ClangModulesDeclVendor::ModuleVector                    m_hand_loaded_clang_modules;    ///< These are Clang modules we hand-loaded; these are the highest-
+                                                                                            ///< priority source for macros.
+};
+
+} // namespace lldb_private
+
+#endif // liblldb_ClangPersistentVariables_h_
diff --git a/source/Plugins/ExpressionParser/Clang/ClangUserExpression.cpp b/source/Plugins/ExpressionParser/Clang/ClangUserExpression.cpp
new file mode 100644
index 0000000000000..11f7f84ff5f17
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangUserExpression.cpp
@@ -0,0 +1,673 @@
+//===-- ClangUserExpression.cpp ---------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdio.h>
+#if HAVE_SYS_TYPES_H
+#  include <sys/types.h>
+#endif
+
+#include <cstdlib>
+#include <string>
+#include <map>
+
+#include "ClangUserExpression.h"
+
+#include "ASTResultSynthesizer.h"
+#include "ClangExpressionDeclMap.h"
+#include "ClangExpressionParser.h"
+#include "ClangModulesDeclVendor.h"
+#include "ClangPersistentVariables.h"
+
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/StreamFile.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/Expression/ExpressionSourceCode.h"
+#include "lldb/Expression/IRExecutionUnit.h"
+#include "lldb/Expression/IRInterpreter.h"
+#include "lldb/Expression/Materializer.h"
+#include "lldb/Host/HostInfo.h"
+#include "lldb/Symbol/Block.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Symbol/Function.h"
+#include "lldb/Symbol/ObjectFile.h"
+#include "lldb/Symbol/SymbolVendor.h"
+#include "lldb/Symbol/Type.h"
+#include "lldb/Symbol/ClangExternalASTSourceCommon.h"
+#include "lldb/Symbol/VariableList.h"
+#include "lldb/Target/ExecutionContext.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/StackFrame.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Target/ThreadPlan.h"
+#include "lldb/Target/ThreadPlanCallUserExpression.h"
+
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclObjC.h"
+
+using namespace lldb_private;
+
+ClangUserExpression::ClangUserExpression (ExecutionContextScope &exe_scope,
+                                          const char *expr,
+                                          const char *expr_prefix,
+                                          lldb::LanguageType language,
+                                          ResultType desired_type,
+                                          const EvaluateExpressionOptions &options) :
+    LLVMUserExpression (exe_scope, expr, expr_prefix, language, desired_type, options),
+    m_type_system_helper(*m_target_wp.lock().get())
+{
+    switch (m_language)
+    {
+    case lldb::eLanguageTypeC_plus_plus:
+        m_allow_cxx = true;
+        break;
+    case lldb::eLanguageTypeObjC:
+        m_allow_objc = true;
+        break;
+    case lldb::eLanguageTypeObjC_plus_plus:
+    default:
+        m_allow_cxx = true;
+        m_allow_objc = true;
+        break;
+    }
+}
+
+ClangUserExpression::~ClangUserExpression ()
+{
+}
+
+void
+ClangUserExpression::ScanContext(ExecutionContext &exe_ctx, Error &err)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (log)
+        log->Printf("ClangUserExpression::ScanContext()");
+
+    m_target = exe_ctx.GetTargetPtr();
+
+    if (!(m_allow_cxx || m_allow_objc))
+    {
+        if (log)
+            log->Printf("  [CUE::SC] Settings inhibit C++ and Objective-C");
+        return;
+    }
+
+    StackFrame *frame = exe_ctx.GetFramePtr();
+    if (frame == NULL)
+    {
+        if (log)
+            log->Printf("  [CUE::SC] Null stack frame");
+        return;
+    }
+
+    SymbolContext sym_ctx = frame->GetSymbolContext(lldb::eSymbolContextFunction | lldb::eSymbolContextBlock);
+
+    if (!sym_ctx.function)
+    {
+        if (log)
+            log->Printf("  [CUE::SC] Null function");
+        return;
+    }
+
+    // Find the block that defines the function represented by "sym_ctx"
+    Block *function_block = sym_ctx.GetFunctionBlock();
+
+    if (!function_block)
+    {
+        if (log)
+            log->Printf("  [CUE::SC] Null function block");
+        return;
+    }
+
+    CompilerDeclContext decl_context = function_block->GetDeclContext();
+
+    if (!decl_context)
+    {
+        if (log)
+            log->Printf("  [CUE::SC] Null decl context");
+        return;
+    }
+
+    if (clang::CXXMethodDecl *method_decl = ClangASTContext::DeclContextGetAsCXXMethodDecl(decl_context))
+    {
+        if (m_allow_cxx && method_decl->isInstance())
+        {
+            if (m_enforce_valid_object)
+            {
+                lldb::VariableListSP variable_list_sp (function_block->GetBlockVariableList (true));
+
+                const char *thisErrorString = "Stopped in a C++ method, but 'this' isn't available; pretending we are in a generic context";
+
+                if (!variable_list_sp)
+                {
+                    err.SetErrorString(thisErrorString);
+                    return;
+                }
+
+                lldb::VariableSP this_var_sp (variable_list_sp->FindVariable(ConstString("this")));
+
+                if (!this_var_sp ||
+                    !this_var_sp->IsInScope(frame) ||
+                    !this_var_sp->LocationIsValidForFrame (frame))
+                {
+                    err.SetErrorString(thisErrorString);
+                    return;
+                }
+            }
+
+            m_in_cplusplus_method = true;
+            m_needs_object_ptr = true;
+        }
+    }
+    else if (clang::ObjCMethodDecl *method_decl = ClangASTContext::DeclContextGetAsObjCMethodDecl(decl_context))
+    {
+        if (m_allow_objc)
+        {
+            if (m_enforce_valid_object)
+            {
+                lldb::VariableListSP variable_list_sp (function_block->GetBlockVariableList (true));
+
+                const char *selfErrorString = "Stopped in an Objective-C method, but 'self' isn't available; pretending we are in a generic context";
+
+                if (!variable_list_sp)
+                {
+                    err.SetErrorString(selfErrorString);
+                    return;
+                }
+
+                lldb::VariableSP self_variable_sp = variable_list_sp->FindVariable(ConstString("self"));
+
+                if (!self_variable_sp ||
+                    !self_variable_sp->IsInScope(frame) ||
+                    !self_variable_sp->LocationIsValidForFrame (frame))
+                {
+                    err.SetErrorString(selfErrorString);
+                    return;
+                }
+            }
+
+            m_in_objectivec_method = true;
+            m_needs_object_ptr = true;
+
+            if (!method_decl->isInstanceMethod())
+                m_in_static_method = true;
+        }
+    }
+    else if (clang::FunctionDecl *function_decl = ClangASTContext::DeclContextGetAsFunctionDecl(decl_context))
+    {
+        // We might also have a function that said in the debug information that it captured an
+        // object pointer.  The best way to deal with getting to the ivars at present is by pretending
+        // that this is a method of a class in whatever runtime the debug info says the object pointer
+        // belongs to.  Do that here.
+
+        ClangASTMetadata *metadata = ClangASTContext::DeclContextGetMetaData (decl_context, function_decl);
+        if (metadata && metadata->HasObjectPtr())
+        {
+            lldb::LanguageType language = metadata->GetObjectPtrLanguage();
+            if (language == lldb::eLanguageTypeC_plus_plus)
+            {
+                if (m_enforce_valid_object)
+                {
+                    lldb::VariableListSP variable_list_sp (function_block->GetBlockVariableList (true));
+
+                    const char *thisErrorString = "Stopped in a context claiming to capture a C++ object pointer, but 'this' isn't available; pretending we are in a generic context";
+
+                    if (!variable_list_sp)
+                    {
+                        err.SetErrorString(thisErrorString);
+                        return;
+                    }
+
+                    lldb::VariableSP this_var_sp (variable_list_sp->FindVariable(ConstString("this")));
+
+                    if (!this_var_sp ||
+                        !this_var_sp->IsInScope(frame) ||
+                        !this_var_sp->LocationIsValidForFrame (frame))
+                    {
+                        err.SetErrorString(thisErrorString);
+                        return;
+                    }
+                }
+
+                m_in_cplusplus_method = true;
+                m_needs_object_ptr = true;
+            }
+            else if (language == lldb::eLanguageTypeObjC)
+            {
+                if (m_enforce_valid_object)
+                {
+                    lldb::VariableListSP variable_list_sp (function_block->GetBlockVariableList (true));
+
+                    const char *selfErrorString = "Stopped in a context claiming to capture an Objective-C object pointer, but 'self' isn't available; pretending we are in a generic context";
+
+                    if (!variable_list_sp)
+                    {
+                        err.SetErrorString(selfErrorString);
+                        return;
+                    }
+
+                    lldb::VariableSP self_variable_sp = variable_list_sp->FindVariable(ConstString("self"));
+
+                    if (!self_variable_sp ||
+                        !self_variable_sp->IsInScope(frame) ||
+                        !self_variable_sp->LocationIsValidForFrame (frame))
+                    {
+                        err.SetErrorString(selfErrorString);
+                        return;
+                    }
+
+                    Type *self_type = self_variable_sp->GetType();
+
+                    if (!self_type)
+                    {
+                        err.SetErrorString(selfErrorString);
+                        return;
+                    }
+
+                    CompilerType self_clang_type = self_type->GetForwardCompilerType ();
+
+                    if (!self_clang_type)
+                    {
+                        err.SetErrorString(selfErrorString);
+                        return;
+                    }
+
+                    if (ClangASTContext::IsObjCClassType(self_clang_type))
+                    {
+                        return;
+                    }
+                    else if (ClangASTContext::IsObjCObjectPointerType(self_clang_type))
+                    {
+                        m_in_objectivec_method = true;
+                        m_needs_object_ptr = true;
+                    }
+                    else
+                    {
+                        err.SetErrorString(selfErrorString);
+                        return;
+                    }
+                }
+                else
+                {
+                    m_in_objectivec_method = true;
+                    m_needs_object_ptr = true;
+                }
+            }
+        }
+    }
+}
+
+// This is a really nasty hack, meant to fix Objective-C expressions of the form
+// (int)[myArray count].  Right now, because the type information for count is
+// not available, [myArray count] returns id, which can't be directly cast to
+// int without causing a clang error.
+static void
+ApplyObjcCastHack(std::string &expr)
+{
+#define OBJC_CAST_HACK_FROM "(int)["
+#define OBJC_CAST_HACK_TO   "(int)(long long)["
+
+    size_t from_offset;
+
+    while ((from_offset = expr.find(OBJC_CAST_HACK_FROM)) != expr.npos)
+        expr.replace(from_offset, sizeof(OBJC_CAST_HACK_FROM) - 1, OBJC_CAST_HACK_TO);
+
+#undef OBJC_CAST_HACK_TO
+#undef OBJC_CAST_HACK_FROM
+}
+
+bool
+ClangUserExpression::Parse (Stream &error_stream,
+                            ExecutionContext &exe_ctx,
+                            lldb_private::ExecutionPolicy execution_policy,
+                            bool keep_result_in_memory,
+                            bool generate_debug_info)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    Error err;
+
+    InstallContext(exe_ctx);
+    
+    if (Target *target = exe_ctx.GetTargetPtr())
+    {
+        if (PersistentExpressionState *persistent_state = target->GetPersistentExpressionStateForLanguage(lldb::eLanguageTypeC))
+        {
+            m_result_delegate.RegisterPersistentState(persistent_state);
+        }
+        else
+        {
+            error_stream.PutCString ("error: couldn't start parsing (no persistent data)");
+            return false;
+        }
+    }
+    else
+    {
+        error_stream.PutCString ("error: couldn't start parsing (no target)");
+        return false;
+    }
+
+    ScanContext(exe_ctx, err);
+
+    if (!err.Success())
+    {
+        error_stream.Printf("warning: %s\n", err.AsCString());
+    }
+
+    StreamString m_transformed_stream;
+
+    ////////////////////////////////////
+    // Generate the expression
+    //
+
+    ApplyObjcCastHack(m_expr_text);
+    //ApplyUnicharHack(m_expr_text);
+
+    std::string prefix = m_expr_prefix;
+    
+    if (ClangModulesDeclVendor *decl_vendor = m_target->GetClangModulesDeclVendor())
+    {
+        const ClangModulesDeclVendor::ModuleVector &hand_imported_modules = llvm::cast<ClangPersistentVariables>(m_target->GetPersistentExpressionStateForLanguage(lldb::eLanguageTypeC))->GetHandLoadedClangModules();
+        ClangModulesDeclVendor::ModuleVector modules_for_macros;
+        
+        for (ClangModulesDeclVendor::ModuleID module : hand_imported_modules)
+        {
+            modules_for_macros.push_back(module);
+        }
+
+        if (m_target->GetEnableAutoImportClangModules())
+        {
+            if (StackFrame *frame = exe_ctx.GetFramePtr())
+            {
+                if (Block *block = frame->GetFrameBlock())
+                {
+                    SymbolContext sc;
+                    
+                    block->CalculateSymbolContext(&sc);
+                    
+                    if (sc.comp_unit)
+                    {
+                        StreamString error_stream;
+                        
+                        decl_vendor->AddModulesForCompileUnit(*sc.comp_unit, modules_for_macros, error_stream);
+                    }
+                }
+            }
+        }
+    }
+    
+    std::unique_ptr<ExpressionSourceCode> source_code (ExpressionSourceCode::CreateWrapped(prefix.c_str(), m_expr_text.c_str()));
+    
+    lldb::LanguageType lang_type;
+
+    if (m_in_cplusplus_method)
+        lang_type = lldb::eLanguageTypeC_plus_plus;
+    else if (m_in_objectivec_method)
+        lang_type = lldb::eLanguageTypeObjC;
+    else
+        lang_type = lldb::eLanguageTypeC;
+
+    if (!source_code->GetText(m_transformed_text, lang_type, m_const_object, m_in_static_method, exe_ctx))
+    {
+        error_stream.PutCString ("error: couldn't construct expression body");
+        return false;
+    }
+
+    if (log)
+        log->Printf("Parsing the following code:\n%s", m_transformed_text.c_str());
+
+    ////////////////////////////////////
+    // Set up the target and compiler
+    //
+
+    Target *target = exe_ctx.GetTargetPtr();
+
+    if (!target)
+    {
+        error_stream.PutCString ("error: invalid target\n");
+        return false;
+    }
+
+    //////////////////////////
+    // Parse the expression
+    //
+
+    m_materializer_ap.reset(new Materializer());
+
+    ResetDeclMap(exe_ctx, m_result_delegate, keep_result_in_memory);
+
+    class OnExit
+    {
+    public:
+        typedef std::function <void (void)> Callback;
+
+        OnExit (Callback const &callback) :
+            m_callback(callback)
+        {
+        }
+
+        ~OnExit ()
+        {
+            m_callback();
+        }
+    private:
+        Callback m_callback;
+    };
+
+    OnExit on_exit([this]() { ResetDeclMap(); });
+
+    if (!DeclMap()->WillParse(exe_ctx, m_materializer_ap.get()))
+    {
+        error_stream.PutCString ("error: current process state is unsuitable for expression parsing\n");
+
+        ResetDeclMap(); // We are being careful here in the case of breakpoint conditions.
+
+        return false;
+    }
+
+    Process *process = exe_ctx.GetProcessPtr();
+    ExecutionContextScope *exe_scope = process;
+
+    if (!exe_scope)
+        exe_scope = exe_ctx.GetTargetPtr();
+
+    ClangExpressionParser parser(exe_scope, *this, generate_debug_info);
+
+    unsigned num_errors = parser.Parse (error_stream);
+
+    if (num_errors)
+    {
+        error_stream.Printf ("error: %d errors parsing expression\n", num_errors);
+
+        ResetDeclMap(); // We are being careful here in the case of breakpoint conditions.
+
+        return false;
+    }
+
+    //////////////////////////////////////////////////////////////////////////////////////////
+    // Prepare the output of the parser for execution, evaluating it statically if possible
+    //
+
+    Error jit_error = parser.PrepareForExecution (m_jit_start_addr,
+                                                  m_jit_end_addr,
+                                                  m_execution_unit_sp,
+                                                  exe_ctx,
+                                                  m_can_interpret,
+                                                  execution_policy);
+
+    if (generate_debug_info)
+    {
+        lldb::ModuleSP jit_module_sp ( m_execution_unit_sp->GetJITModule());
+
+        if (jit_module_sp)
+        {
+            ConstString const_func_name(FunctionName());
+            FileSpec jit_file;
+            jit_file.GetFilename() = const_func_name;
+            jit_module_sp->SetFileSpecAndObjectName (jit_file, ConstString());
+            m_jit_module_wp = jit_module_sp;
+            target->GetImages().Append(jit_module_sp);
+        }
+//        lldb_private::ObjectFile *jit_obj_file = jit_module_sp->GetObjectFile();
+//        StreamFile strm (stdout, false);
+//        if (jit_obj_file)
+//        {
+//            jit_obj_file->GetSectionList();
+//            jit_obj_file->GetSymtab();
+//            jit_obj_file->Dump(&strm);
+//        }
+//        lldb_private::SymbolVendor *jit_sym_vendor = jit_module_sp->GetSymbolVendor();
+//        if (jit_sym_vendor)
+//        {
+//            lldb_private::SymbolContextList sc_list;
+//            jit_sym_vendor->FindFunctions(const_func_name, NULL, lldb::eFunctionNameTypeFull, true, false, sc_list);
+//            sc_list.Dump(&strm, target);
+//            jit_sym_vendor->Dump(&strm);
+//        }
+    }
+
+    ResetDeclMap(); // Make this go away since we don't need any of its state after parsing.  This also gets rid of any ClangASTImporter::Minions.
+
+    if (jit_error.Success())
+    {
+        if (process && m_jit_start_addr != LLDB_INVALID_ADDRESS)
+            m_jit_process_wp = lldb::ProcessWP(process->shared_from_this());
+        return true;
+    }
+    else
+    {
+        const char *error_cstr = jit_error.AsCString();
+        if (error_cstr && error_cstr[0])
+            error_stream.Printf ("error: %s\n", error_cstr);
+        else
+            error_stream.Printf ("error: expression can't be interpreted or run\n");
+        return false;
+    }
+}
+
+bool
+ClangUserExpression::AddArguments (ExecutionContext &exe_ctx,
+                                   std::vector<lldb::addr_t> &args,
+                                   lldb::addr_t struct_address,
+                                   Stream &error_stream)
+{
+    lldb::addr_t object_ptr = LLDB_INVALID_ADDRESS;
+    lldb::addr_t cmd_ptr    = LLDB_INVALID_ADDRESS;
+    
+    if (m_needs_object_ptr)
+    {
+        lldb::StackFrameSP frame_sp = exe_ctx.GetFrameSP();
+        if (!frame_sp)
+            return true;
+        
+        ConstString object_name;
+
+        if (m_in_cplusplus_method)
+        {
+            object_name.SetCString("this");
+        }
+        else if (m_in_objectivec_method)
+        {
+            object_name.SetCString("self");
+        }
+        else
+        {
+            error_stream.Printf("Need object pointer but don't know the language\n");
+            return false;
+        }
+
+        Error object_ptr_error;
+
+        object_ptr = GetObjectPointer(frame_sp, object_name, object_ptr_error);
+
+        if (!object_ptr_error.Success())
+        {
+            error_stream.Printf("warning: couldn't get required object pointer (substituting NULL): %s\n", object_ptr_error.AsCString());
+            object_ptr = 0;
+        }
+
+        if (m_in_objectivec_method)
+        {
+            ConstString cmd_name("_cmd");
+
+            cmd_ptr = GetObjectPointer(frame_sp, cmd_name, object_ptr_error);
+
+            if (!object_ptr_error.Success())
+            {
+                error_stream.Printf("warning: couldn't get cmd pointer (substituting NULL): %s\n", object_ptr_error.AsCString());
+                cmd_ptr = 0;
+            }
+        }
+        if (object_ptr)
+            args.push_back(object_ptr);
+
+        if (m_in_objectivec_method)
+            args.push_back(cmd_ptr);
+
+        args.push_back(struct_address);
+    }
+    else
+    {
+        args.push_back(struct_address);
+    }
+    return true;
+}
+
+lldb::ExpressionVariableSP
+ClangUserExpression::GetResultAfterDematerialization(ExecutionContextScope *exe_scope)
+{
+    return m_result_delegate.GetVariable();
+}
+
+void
+ClangUserExpression::ClangUserExpressionHelper::ResetDeclMap(ExecutionContext &exe_ctx, Materializer::PersistentVariableDelegate &delegate, bool keep_result_in_memory)
+{
+    m_expr_decl_map_up.reset(new ClangExpressionDeclMap(keep_result_in_memory, &delegate, exe_ctx));
+}
+
+clang::ASTConsumer *
+ClangUserExpression::ClangUserExpressionHelper::ASTTransformer (clang::ASTConsumer *passthrough)
+{
+    m_result_synthesizer_up.reset(new ASTResultSynthesizer(passthrough,
+                                                           m_target));
+
+    return m_result_synthesizer_up.get();
+}
+
+ClangUserExpression::ResultDelegate::ResultDelegate()
+{
+}
+
+ConstString
+ClangUserExpression::ResultDelegate::GetName()
+{
+    return m_persistent_state->GetNextPersistentVariableName();
+}
+
+void
+ClangUserExpression::ResultDelegate::DidDematerialize(lldb::ExpressionVariableSP &variable)
+{
+    m_variable = variable;
+}
+
+void
+ClangUserExpression::ResultDelegate::RegisterPersistentState(PersistentExpressionState *persistent_state)
+{
+    m_persistent_state = persistent_state;
+}
+
+lldb::ExpressionVariableSP &
+ClangUserExpression::ResultDelegate::GetVariable()
+{
+    return m_variable;
+}
+
diff --git a/source/Plugins/ExpressionParser/Clang/ClangUserExpression.h b/source/Plugins/ExpressionParser/Clang/ClangUserExpression.h
new file mode 100644
index 0000000000000..f2bfe31dce09d
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangUserExpression.h
@@ -0,0 +1,218 @@
+//===-- ClangUserExpression.h -----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ClangUserExpression_h_
+#define liblldb_ClangUserExpression_h_
+
+// C Includes
+// C++ Includes
+#include <vector>
+
+// Other libraries and framework includes
+// Project includes
+#include "ASTStructExtractor.h"
+#include "ASTResultSynthesizer.h"
+#include "ClangExpressionDeclMap.h"
+#include "ClangExpressionHelper.h"
+#include "ClangExpressionVariable.h"
+#include "IRForTarget.h"
+
+#include "lldb/lldb-forward.h"
+#include "lldb/lldb-private.h"
+#include "lldb/Core/Address.h"
+#include "lldb/Core/ClangForward.h"
+#include "lldb/Expression/LLVMUserExpression.h"
+#include "lldb/Expression/Materializer.h"
+#include "lldb/Target/ExecutionContext.h"
+
+namespace lldb_private
+{
+
+//----------------------------------------------------------------------
+/// @class ClangUserExpression ClangUserExpression.h "lldb/Expression/ClangUserExpression.h"
+/// @brief Encapsulates a single expression for use with Clang
+///
+/// LLDB uses expressions for various purposes, notably to call functions
+/// and as a backend for the expr command.  ClangUserExpression encapsulates
+/// the objects needed to parse and interpret or JIT an expression.  It
+/// uses the Clang parser to produce LLVM IR from the expression.
+//----------------------------------------------------------------------
+class ClangUserExpression : public LLVMUserExpression
+{
+public:
+    enum { kDefaultTimeout = 500000u };
+
+    class ClangUserExpressionHelper : public ClangExpressionHelper
+    {
+    public:
+        ClangUserExpressionHelper (Target &target) :
+            m_target(target)
+        {
+        }
+        
+        ~ClangUserExpressionHelper() override = default;
+        
+        //------------------------------------------------------------------
+        /// Return the object that the parser should use when resolving external
+        /// values.  May be NULL if everything should be self-contained.
+        //------------------------------------------------------------------
+        ClangExpressionDeclMap *
+        DeclMap() override
+        {
+            return m_expr_decl_map_up.get();
+        }
+        
+        void
+        ResetDeclMap()
+        {
+            m_expr_decl_map_up.reset();
+        }
+        
+        void
+        ResetDeclMap (ExecutionContext & exe_ctx, Materializer::PersistentVariableDelegate &result_delegate, bool keep_result_in_memory);
+        
+        //------------------------------------------------------------------
+        /// Return the object that the parser should allow to access ASTs.
+        /// May be NULL if the ASTs do not need to be transformed.
+        ///
+        /// @param[in] passthrough
+        ///     The ASTConsumer that the returned transformer should send
+        ///     the ASTs to after transformation.
+        //------------------------------------------------------------------
+        clang::ASTConsumer *
+        ASTTransformer(clang::ASTConsumer *passthrough) override;
+
+    private:
+        Target                                  &m_target;
+        std::unique_ptr<ClangExpressionDeclMap> m_expr_decl_map_up;
+        std::unique_ptr<ASTStructExtractor> m_struct_extractor_up;         ///< The class that generates the argument struct layout.
+        std::unique_ptr<ASTResultSynthesizer> m_result_synthesizer_up;
+    };
+
+    //------------------------------------------------------------------
+    /// Constructor
+    ///
+    /// @param[in] expr
+    ///     The expression to parse.
+    ///
+    /// @param[in] expr_prefix
+    ///     If non-NULL, a C string containing translation-unit level
+    ///     definitions to be included when the expression is parsed.
+    ///
+    /// @param[in] language
+    ///     If not eLanguageTypeUnknown, a language to use when parsing
+    ///     the expression.  Currently restricted to those languages
+    ///     supported by Clang.
+    ///
+    /// @param[in] desired_type
+    ///     If not eResultTypeAny, the type to use for the expression
+    ///     result.
+    //------------------------------------------------------------------
+    ClangUserExpression (ExecutionContextScope &exe_scope,
+                         const char *expr,
+                         const char *expr_prefix,
+                         lldb::LanguageType language,
+                         ResultType desired_type,
+                         const EvaluateExpressionOptions &options);
+
+    ~ClangUserExpression() override;
+
+    //------------------------------------------------------------------
+    /// Parse the expression
+    ///
+    /// @param[in] error_stream
+    ///     A stream to print parse errors and warnings to.
+    ///
+    /// @param[in] exe_ctx
+    ///     The execution context to use when looking up entities that
+    ///     are needed for parsing (locations of functions, types of
+    ///     variables, persistent variables, etc.)
+    ///
+    /// @param[in] execution_policy
+    ///     Determines whether interpretation is possible or mandatory.
+    ///
+    /// @param[in] keep_result_in_memory
+    ///     True if the resulting persistent variable should reside in
+    ///     target memory, if applicable.
+    ///
+    /// @return
+    ///     True on success (no errors); false otherwise.
+    //------------------------------------------------------------------
+    bool
+    Parse (Stream &error_stream,
+           ExecutionContext &exe_ctx,
+           lldb_private::ExecutionPolicy execution_policy,
+           bool keep_result_in_memory,
+           bool generate_debug_info) override;
+
+    ExpressionTypeSystemHelper *
+    GetTypeSystemHelper () override
+    {
+        return &m_type_system_helper;
+    }
+    
+    ClangExpressionDeclMap *
+    DeclMap ()
+    {
+        return m_type_system_helper.DeclMap();
+    }
+    
+    void
+    ResetDeclMap ()
+    {
+        m_type_system_helper.ResetDeclMap();
+    }
+    
+    void
+    ResetDeclMap (ExecutionContext & exe_ctx, Materializer::PersistentVariableDelegate &result_delegate, bool keep_result_in_memory)
+    {
+        m_type_system_helper.ResetDeclMap(exe_ctx, result_delegate, keep_result_in_memory);
+    }
+
+    lldb::ExpressionVariableSP
+    GetResultAfterDematerialization(ExecutionContextScope *exe_scope) override;
+    
+private:
+    //------------------------------------------------------------------
+    /// Populate m_in_cplusplus_method and m_in_objectivec_method based on the environment.
+    //------------------------------------------------------------------
+
+    void
+    ScanContext (ExecutionContext &exe_ctx,
+                 lldb_private::Error &err) override;
+
+    bool
+    AddArguments (ExecutionContext &exe_ctx,
+                  std::vector<lldb::addr_t> &args,
+                  lldb::addr_t struct_address,
+                  Stream &error_stream) override;
+    
+    ClangUserExpressionHelper   m_type_system_helper;
+    
+    class ResultDelegate : public Materializer::PersistentVariableDelegate
+    {
+    public:
+        ResultDelegate();
+        ConstString GetName() override;
+        void DidDematerialize(lldb::ExpressionVariableSP &variable) override;
+        
+        void RegisterPersistentState(PersistentExpressionState *persistent_state);
+        lldb::ExpressionVariableSP &GetVariable();
+
+    private:
+        PersistentExpressionState *m_persistent_state;
+        lldb::ExpressionVariableSP m_variable;
+    };
+    
+    ResultDelegate                                          m_result_delegate;
+};
+
+} // namespace lldb_private
+
+#endif // liblldb_ClangUserExpression_h_
diff --git a/source/Plugins/ExpressionParser/Clang/ClangUtilityFunction.cpp b/source/Plugins/ExpressionParser/Clang/ClangUtilityFunction.cpp
new file mode 100644
index 0000000000000..fe044c17ac788
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangUtilityFunction.cpp
@@ -0,0 +1,189 @@
+//===-- ClangUserExpression.cpp -------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ClangExpressionDeclMap.h"
+#include "ClangExpressionParser.h"
+#include "ClangUtilityFunction.h"
+
+// C Includes
+#include <stdio.h>
+#if HAVE_SYS_TYPES_H
+#  include <sys/types.h>
+#endif
+
+// C++ Includes
+
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/StreamFile.h"
+#include "lldb/Expression/ExpressionSourceCode.h"
+#include "lldb/Expression/IRExecutionUnit.h"
+#include "lldb/Host/Host.h"
+#include "lldb/Target/ExecutionContext.h"
+#include "lldb/Target/Target.h"
+
+using namespace lldb_private;
+
+//------------------------------------------------------------------
+/// Constructor
+///
+/// @param[in] text
+///     The text of the function.  Must be a full translation unit.
+///
+/// @param[in] name
+///     The name of the function, as used in the text.
+//------------------------------------------------------------------
+ClangUtilityFunction::ClangUtilityFunction (ExecutionContextScope &exe_scope,
+                                            const char *text,
+                                            const char *name) :
+    UtilityFunction (exe_scope, text, name)
+{
+}
+
+ClangUtilityFunction::~ClangUtilityFunction ()
+{
+}
+
+//------------------------------------------------------------------
+/// Install the utility function into a process
+///
+/// @param[in] error_stream
+///     A stream to print parse errors and warnings to.
+///
+/// @param[in] exe_ctx
+///     The execution context to install the utility function to.
+///
+/// @return
+///     True on success (no errors); false otherwise.
+//------------------------------------------------------------------
+bool
+ClangUtilityFunction::Install (Stream &error_stream,
+                               ExecutionContext &exe_ctx)
+{
+    if (m_jit_start_addr != LLDB_INVALID_ADDRESS)
+    {
+        error_stream.PutCString("error: already installed\n");
+        return false;
+    }
+    
+    ////////////////////////////////////
+    // Set up the target and compiler
+    //
+    
+    Target *target = exe_ctx.GetTargetPtr();
+    
+    if (!target)
+    {
+        error_stream.PutCString ("error: invalid target\n");
+        return false;
+    }
+    
+    Process *process = exe_ctx.GetProcessPtr();
+    
+    if (!process)
+    {
+        error_stream.PutCString ("error: invalid process\n");
+        return false;
+    }
+        
+    //////////////////////////
+    // Parse the expression
+    //
+    
+    bool keep_result_in_memory = false;
+    
+    ResetDeclMap(exe_ctx, keep_result_in_memory);
+    
+    if (!DeclMap()->WillParse(exe_ctx, NULL))
+    {
+        error_stream.PutCString ("error: current process state is unsuitable for expression parsing\n");
+        return false;
+    }
+    
+    const bool generate_debug_info = true;
+    ClangExpressionParser parser(exe_ctx.GetBestExecutionContextScope(), *this, generate_debug_info);
+    
+    unsigned num_errors = parser.Parse (error_stream);
+    
+    if (num_errors)
+    {
+        error_stream.Printf ("error: %d errors parsing expression\n", num_errors);
+        
+        ResetDeclMap();
+        
+        return false;
+    }
+    
+    //////////////////////////////////
+    // JIT the output of the parser
+    //
+        
+    bool can_interpret = false; // should stay that way
+    
+    Error jit_error = parser.PrepareForExecution (m_jit_start_addr, 
+                                                  m_jit_end_addr,
+                                                  m_execution_unit_sp,
+                                                  exe_ctx,
+                                                  can_interpret,
+                                                  eExecutionPolicyAlways);
+    
+    if (m_jit_start_addr != LLDB_INVALID_ADDRESS)
+    {
+        m_jit_process_wp = process->shared_from_this();
+        if (parser.GetGenerateDebugInfo())
+        {
+            lldb::ModuleSP jit_module_sp ( m_execution_unit_sp->GetJITModule());
+            
+            if (jit_module_sp)
+            {
+                ConstString const_func_name(FunctionName());
+                FileSpec jit_file;
+                jit_file.GetFilename() = const_func_name;
+                jit_module_sp->SetFileSpecAndObjectName (jit_file, ConstString());
+                m_jit_module_wp = jit_module_sp;
+                target->GetImages().Append(jit_module_sp);
+            }
+        }
+    }
+    
+#if 0
+	// jingham: look here
+    StreamFile logfile ("/tmp/exprs.txt", "a");
+    logfile.Printf ("0x%16.16" PRIx64 ": func = %s, source =\n%s\n",
+                    m_jit_start_addr, 
+                    m_function_name.c_str(), 
+                    m_function_text.c_str());
+#endif
+
+    DeclMap()->DidParse();
+    
+    ResetDeclMap();
+    
+    if (jit_error.Success())
+    {
+        return true;
+    }
+    else
+    {
+        const char *error_cstr = jit_error.AsCString();
+        if (error_cstr && error_cstr[0])
+            error_stream.Printf ("error: %s\n", error_cstr);
+        else
+            error_stream.Printf ("error: expression can't be interpreted or run\n");
+        return false;
+    }
+}
+
+void
+ClangUtilityFunction::ClangUtilityFunctionHelper::ResetDeclMap(ExecutionContext &exe_ctx, bool keep_result_in_memory)
+{
+    m_expr_decl_map_up.reset(new ClangExpressionDeclMap(keep_result_in_memory, nullptr, exe_ctx));
+}
diff --git a/source/Plugins/ExpressionParser/Clang/ClangUtilityFunction.h b/source/Plugins/ExpressionParser/Clang/ClangUtilityFunction.h
new file mode 100644
index 0000000000000..74839717946bc
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/ClangUtilityFunction.h
@@ -0,0 +1,137 @@
+//===-- ClangUtilityFunction.h ----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ClangUtilityFunction_h_
+#define liblldb_ClangUtilityFunction_h_
+
+// C Includes
+// C++ Includes
+#include <string>
+#include <map>
+#include <vector>
+
+// Other libraries and framework includes
+// Project includes
+#include "ClangExpressionHelper.h"
+
+#include "lldb/lldb-forward.h"
+#include "lldb/lldb-private.h"
+#include "lldb/Core/ClangForward.h"
+#include "lldb/Expression/UtilityFunction.h"
+
+namespace lldb_private 
+{
+
+//----------------------------------------------------------------------
+/// @class ClangUtilityFunction ClangUtilityFunction.h "lldb/Expression/ClangUtilityFunction.h"
+/// @brief Encapsulates a single expression for use with Clang
+///
+/// LLDB uses expressions for various purposes, notably to call functions
+/// and as a backend for the expr command.  ClangUtilityFunction encapsulates
+/// a self-contained function meant to be used from other code.  Utility
+/// functions can perform error-checking for ClangUserExpressions, or can
+/// simply provide a way to push a function into the target for the debugger to
+/// call later on.
+//----------------------------------------------------------------------
+class ClangUtilityFunction : public UtilityFunction
+{
+public:
+    class ClangUtilityFunctionHelper : public ClangExpressionHelper
+    {
+    public:
+        ClangUtilityFunctionHelper ()
+        {
+        }
+        
+        ~ClangUtilityFunctionHelper() override {}
+        
+        //------------------------------------------------------------------
+        /// Return the object that the parser should use when resolving external
+        /// values.  May be NULL if everything should be self-contained.
+        //------------------------------------------------------------------
+        ClangExpressionDeclMap *
+        DeclMap() override
+        {
+            return m_expr_decl_map_up.get();
+        }
+        
+        void
+        ResetDeclMap()
+        {
+            m_expr_decl_map_up.reset();
+        }
+        
+        void
+        ResetDeclMap (ExecutionContext & exe_ctx, bool keep_result_in_memory);
+
+        //------------------------------------------------------------------
+        /// Return the object that the parser should allow to access ASTs.
+        /// May be NULL if the ASTs do not need to be transformed.
+        ///
+        /// @param[in] passthrough
+        ///     The ASTConsumer that the returned transformer should send
+        ///     the ASTs to after transformation.
+        //------------------------------------------------------------------
+        clang::ASTConsumer *
+        ASTTransformer(clang::ASTConsumer *passthrough) override
+        {
+            return nullptr;
+        }
+    private:
+        std::unique_ptr<ClangExpressionDeclMap> m_expr_decl_map_up;
+    };
+    //------------------------------------------------------------------
+    /// Constructor
+    ///
+    /// @param[in] text
+    ///     The text of the function.  Must be a full translation unit.
+    ///
+    /// @param[in] name
+    ///     The name of the function, as used in the text.
+    //------------------------------------------------------------------
+    ClangUtilityFunction (ExecutionContextScope &exe_scope,
+                          const char *text,
+                          const char *name);
+    
+    ~ClangUtilityFunction() override;
+    
+    ExpressionTypeSystemHelper *
+    GetTypeSystemHelper () override
+    {
+        return &m_type_system_helper;
+    }
+
+    ClangExpressionDeclMap *
+    DeclMap()
+    {
+        return m_type_system_helper.DeclMap();
+    }
+
+    void
+    ResetDeclMap ()
+    {
+        m_type_system_helper.ResetDeclMap();
+    }
+    
+    void
+    ResetDeclMap (ExecutionContext & exe_ctx, bool keep_result_in_memory)
+    {
+        m_type_system_helper.ResetDeclMap(exe_ctx, keep_result_in_memory);
+    }
+    
+    bool
+    Install (Stream &error_stream, ExecutionContext &exe_ctx) override;
+    
+private:
+    ClangUtilityFunctionHelper  m_type_system_helper;    ///< The map to use when parsing and materializing the expression.
+};
+
+} // namespace lldb_private
+
+#endif // liblldb_ClangUtilityFunction_h_
diff --git a/source/Plugins/ExpressionParser/Clang/IRForTarget.cpp b/source/Plugins/ExpressionParser/Clang/IRForTarget.cpp
new file mode 100644
index 0000000000000..37b7bd1d2c84e
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/IRForTarget.cpp
@@ -0,0 +1,2820 @@
+//===-- IRForTarget.cpp -----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "IRForTarget.h"
+
+#include "ClangExpressionDeclMap.h"
+
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/InstrTypes.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/Intrinsics.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/LegacyPassManager.h"
+#include "llvm/Transforms/IPO.h"
+#include "llvm/IR/Metadata.h"
+#include "llvm/IR/ValueSymbolTable.h"
+
+#include "clang/AST/ASTContext.h"
+
+#include "lldb/Core/dwarf.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/Scalar.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Expression/IRExecutionUnit.h"
+#include "lldb/Expression/IRInterpreter.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Symbol/CompilerType.h"
+#include "lldb/Target/CPPLanguageRuntime.h"
+
+#include <map>
+
+using namespace llvm;
+
+static char ID;
+
+IRForTarget::StaticDataAllocator::StaticDataAllocator(lldb_private::IRExecutionUnit &execution_unit) :
+    m_execution_unit(execution_unit),
+    m_stream_string(lldb_private::Stream::eBinary, execution_unit.GetAddressByteSize(), execution_unit.GetByteOrder()),
+    m_allocation(LLDB_INVALID_ADDRESS)
+{
+}
+
+IRForTarget::FunctionValueCache::FunctionValueCache(Maker const &maker) :
+    m_maker(maker),
+    m_values()
+{
+}
+
+IRForTarget::FunctionValueCache::~FunctionValueCache()
+{
+}
+
+llvm::Value *
+IRForTarget::FunctionValueCache::GetValue(llvm::Function *function)
+{
+    if (!m_values.count(function))
+    {
+        llvm::Value *ret = m_maker(function);
+        m_values[function] = ret;
+        return ret;
+    }
+    return m_values[function];
+}
+
+lldb::addr_t
+IRForTarget::StaticDataAllocator::Allocate()
+{
+    lldb_private::Error err;
+
+    if (m_allocation != LLDB_INVALID_ADDRESS)
+    {
+        m_execution_unit.FreeNow(m_allocation);
+        m_allocation = LLDB_INVALID_ADDRESS;
+    }
+
+    m_allocation = m_execution_unit.WriteNow((const uint8_t*)m_stream_string.GetData(), m_stream_string.GetSize(), err);
+
+    return m_allocation;
+}
+
+lldb::TargetSP
+IRForTarget::StaticDataAllocator::GetTarget()
+{
+    return m_execution_unit.GetTarget();
+}
+
+static llvm::Value *
+FindEntryInstruction (llvm::Function *function)
+{
+    if (function->empty())
+        return NULL;
+
+    return function->getEntryBlock().getFirstNonPHIOrDbg();
+}
+
+IRForTarget::IRForTarget (lldb_private::ClangExpressionDeclMap *decl_map,
+                          bool resolve_vars,
+                          lldb_private::IRExecutionUnit &execution_unit,
+                          lldb_private::Stream *error_stream,
+                          const char *func_name) :
+    ModulePass(ID),
+    m_resolve_vars(resolve_vars),
+    m_func_name(func_name),
+    m_module(NULL),
+    m_decl_map(decl_map),
+    m_data_allocator(execution_unit),
+    m_CFStringCreateWithBytes(NULL),
+    m_sel_registerName(NULL),
+    m_intptr_ty(NULL),
+    m_error_stream(error_stream),
+    m_result_store(NULL),
+    m_result_is_pointer(false),
+    m_reloc_placeholder(NULL),
+    m_entry_instruction_finder (FindEntryInstruction)
+{
+}
+
+/* Handy utility functions used at several places in the code */
+
+static std::string
+PrintValue(const Value *value, bool truncate = false)
+{
+    std::string s;
+    if (value)
+    {
+        raw_string_ostream rso(s);
+        value->print(rso);
+        rso.flush();
+        if (truncate)
+            s.resize(s.length() - 1);
+    }
+    return s;
+}
+
+static std::string
+PrintType(const llvm::Type *type, bool truncate = false)
+{
+    std::string s;
+    raw_string_ostream rso(s);
+    type->print(rso);
+    rso.flush();
+    if (truncate)
+        s.resize(s.length() - 1);
+    return s;
+}
+
+IRForTarget::~IRForTarget()
+{
+}
+
+bool
+IRForTarget::FixFunctionLinkage(llvm::Function &llvm_function)
+{
+    llvm_function.setLinkage(GlobalValue::ExternalLinkage);
+
+    std::string name = llvm_function.getName().str();
+
+    return true;
+}
+
+IRForTarget::LookupResult
+IRForTarget::GetFunctionAddress (llvm::Function *fun,
+                                 uint64_t &fun_addr,
+                                 lldb_private::ConstString &name,
+                                 Constant **&value_ptr)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    fun_addr = LLDB_INVALID_ADDRESS;
+    name.Clear();
+    value_ptr = NULL;
+
+    if (fun->isIntrinsic())
+    {
+        Intrinsic::ID intrinsic_id = (Intrinsic::ID)fun->getIntrinsicID();
+
+        switch (intrinsic_id)
+        {
+        default:
+            if (log)
+                log->Printf("Unresolved intrinsic \"%s\"", Intrinsic::getName(intrinsic_id).c_str());
+
+            if (m_error_stream)
+                m_error_stream->Printf("Internal error [IRForTarget]: Call to unhandled compiler intrinsic '%s'\n", Intrinsic::getName(intrinsic_id).c_str());
+
+            return LookupResult::Fail;
+        case Intrinsic::memcpy:
+            {
+                static lldb_private::ConstString g_memcpy_str ("memcpy");
+                name = g_memcpy_str;
+            }
+            break;
+        case Intrinsic::memset:
+            {
+                static lldb_private::ConstString g_memset_str ("memset");
+                name = g_memset_str;
+            }
+            break;
+        case Intrinsic::dbg_declare:
+        case Intrinsic::dbg_value:
+            return LookupResult::Ignore;
+        }
+
+        if (log && name)
+            log->Printf("Resolved intrinsic name \"%s\"", name.GetCString());
+    }
+    else
+    {
+        name.SetCStringWithLength (fun->getName().data(), fun->getName().size());
+    }
+
+    // Find the address of the function.
+
+    clang::NamedDecl *fun_decl = DeclForGlobal (fun);
+
+    if (fun_decl)
+    {
+        if (!m_decl_map->GetFunctionInfo (fun_decl, fun_addr))
+        {
+            std::vector<lldb_private::ConstString> alternates;
+            bool found_it = m_decl_map->GetFunctionAddress (name, fun_addr);
+            if (!found_it)
+            {
+                if (log)
+                    log->Printf("Address of function \"%s\" not found.\n", name.GetCString());
+                // Check for an alternate mangling for names from the standard library.
+                // For example, "std::basic_string<...>" has an alternate mangling scheme per
+                // the Itanium C++ ABI.
+                lldb::ProcessSP process_sp = m_data_allocator.GetTarget()->GetProcessSP();
+                if (process_sp)
+                {
+                    lldb_private::CPPLanguageRuntime *cpp_runtime = process_sp->GetCPPLanguageRuntime();
+                    if (cpp_runtime && cpp_runtime->GetAlternateManglings(name, alternates))
+                    {
+                        for (size_t i = 0; i < alternates.size(); ++i)
+                        {
+                            const lldb_private::ConstString &alternate_name = alternates[i];
+                            if (log)
+                                log->Printf("Looking up address of function \"%s\" with alternate name \"%s\"",
+                                            name.GetCString(), alternate_name.GetCString());
+                            if ((found_it = m_decl_map->GetFunctionAddress (alternate_name, fun_addr)))
+                            {
+                                if (log)
+                                    log->Printf("Found address of function \"%s\" with alternate name \"%s\"",
+                                                name.GetCString(), alternate_name.GetCString());
+                                break;
+                            }
+                        }
+                    }
+                }
+            }
+
+            if (!found_it)
+            {
+                lldb_private::Mangled mangled_name(name);
+                if (m_error_stream)
+                {
+                    if (mangled_name.GetMangledName())
+                        m_error_stream->Printf("error: call to a function '%s' ('%s') that is not present in the target\n",
+                                               mangled_name.GetName(lldb::eLanguageTypeObjC_plus_plus).GetCString(),
+                                               mangled_name.GetMangledName().GetCString());
+                    else
+                        m_error_stream->Printf("error: call to a function '%s' that is not present in the target\n",
+                                               mangled_name.GetName(lldb::eLanguageTypeObjC_plus_plus).GetCString());
+                }
+                return LookupResult::Fail;
+            }
+        }
+    }
+    else
+    {
+        if (!m_decl_map->GetFunctionAddress (name, fun_addr))
+        {
+            if (log)
+                log->Printf ("Metadataless function \"%s\" had no address", name.GetCString());
+
+            if (m_error_stream)
+                m_error_stream->Printf("Error [IRForTarget]: Call to a symbol-only function '%s' that is not present in the target\n", name.GetCString());
+
+            return LookupResult::Fail;
+        }
+    }
+
+    if (log)
+        log->Printf("Found \"%s\" at 0x%" PRIx64, name.GetCString(), fun_addr);
+
+    return LookupResult::Success;
+}
+
+llvm::Constant *
+IRForTarget::BuildFunctionPointer (llvm::Type *type,
+                                   uint64_t ptr)
+{
+    PointerType *fun_ptr_ty = PointerType::getUnqual(type);
+    Constant *fun_addr_int = ConstantInt::get(m_intptr_ty, ptr, false);
+    return ConstantExpr::getIntToPtr(fun_addr_int, fun_ptr_ty);
+}
+
+void
+IRForTarget::RegisterFunctionMetadata(LLVMContext &context,
+                                      llvm::Value *function_ptr,
+                                      const char *name)
+{
+    for (llvm::User *user : function_ptr->users())
+    {
+        if (Instruction *user_inst = dyn_cast<Instruction>(user))
+        {
+            MDString* md_name = MDString::get(context, StringRef(name));
+
+            MDNode *metadata = MDNode::get(context, md_name);
+
+            user_inst->setMetadata("lldb.call.realName", metadata);
+        }
+        else
+        {
+            RegisterFunctionMetadata (context, user, name);
+        }
+    }
+}
+
+bool
+IRForTarget::ResolveFunctionPointers(llvm::Module &llvm_module)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    for (llvm::Module::iterator fi = llvm_module.begin();
+         fi != llvm_module.end();
+         ++fi)
+    {
+        Function *fun = &*fi;
+
+        bool is_decl = fun->isDeclaration();
+
+        if (log)
+            log->Printf("Examining %s function %s", (is_decl ? "declaration" : "non-declaration"), fun->getName().str().c_str());
+
+        if (!is_decl)
+            continue;
+
+        if (fun->use_empty())
+            continue; // ignore
+
+        uint64_t addr = LLDB_INVALID_ADDRESS;
+        lldb_private::ConstString name;
+        Constant **value_ptr = NULL;
+
+        LookupResult result = GetFunctionAddress(fun,
+                                                 addr,
+                                                 name,
+                                                 value_ptr);
+
+        switch (result)
+        {
+        case LookupResult::Fail:
+            return false; // GetFunctionAddress reports its own errors
+
+        case LookupResult::Ignore:
+            break; // Nothing to do
+
+        case LookupResult::Success:
+            {
+                Constant *value = BuildFunctionPointer(fun->getFunctionType(), addr);
+
+                RegisterFunctionMetadata (llvm_module.getContext(), fun, name.AsCString());
+
+                if (value_ptr)
+                    *value_ptr = value;
+
+                // If we are replacing a function with the nobuiltin attribute, it may
+                // be called with the builtin attribute on call sites. Remove any such
+                // attributes since it's illegal to have a builtin call to something
+                // other than a nobuiltin function.
+                if (fun->hasFnAttribute(llvm::Attribute::NoBuiltin)) {
+                    llvm::Attribute builtin = llvm::Attribute::get(fun->getContext(), llvm::Attribute::Builtin);
+
+                    for (auto u : fun->users()) {
+                        if (auto call = dyn_cast<CallInst>(u)) {
+                            call->removeAttribute(AttributeSet::FunctionIndex, builtin);
+                        }
+                    }
+                }
+
+                fun->replaceAllUsesWith(value);
+            }
+            break;
+        }
+    }
+
+    return true;
+}
+
+
+clang::NamedDecl *
+IRForTarget::DeclForGlobal (const GlobalValue *global_val, Module *module)
+{
+    NamedMDNode *named_metadata = module->getNamedMetadata("clang.global.decl.ptrs");
+
+    if (!named_metadata)
+        return NULL;
+
+    unsigned num_nodes = named_metadata->getNumOperands();
+    unsigned node_index;
+
+    for (node_index = 0;
+         node_index < num_nodes;
+         ++node_index)
+    {
+        llvm::MDNode *metadata_node = dyn_cast<llvm::MDNode>(named_metadata->getOperand(node_index));
+        if (!metadata_node)
+            return NULL;
+
+        if (metadata_node->getNumOperands() != 2)
+            continue;
+
+        if (mdconst::dyn_extract_or_null<GlobalValue>(metadata_node->getOperand(0)) != global_val)
+            continue;
+
+        ConstantInt *constant_int = mdconst::dyn_extract<ConstantInt>(metadata_node->getOperand(1));
+
+        if (!constant_int)
+            return NULL;
+
+        uintptr_t ptr = constant_int->getZExtValue();
+
+        return reinterpret_cast<clang::NamedDecl *>(ptr);
+    }
+
+    return NULL;
+}
+
+clang::NamedDecl *
+IRForTarget::DeclForGlobal (GlobalValue *global_val)
+{
+    return DeclForGlobal(global_val, m_module);
+}
+
+bool
+IRForTarget::CreateResultVariable (llvm::Function &llvm_function)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (!m_resolve_vars)
+        return true;
+
+    // Find the result variable.  If it doesn't exist, we can give up right here.
+
+    ValueSymbolTable& value_symbol_table = m_module->getValueSymbolTable();
+
+    std::string result_name_str;
+    const char *result_name = NULL;
+
+    for (ValueSymbolTable::iterator vi = value_symbol_table.begin(), ve = value_symbol_table.end();
+         vi != ve;
+         ++vi)
+    {
+        result_name_str = vi->first().str();
+        const char *value_name = result_name_str.c_str();
+
+        if (strstr(value_name, "$__lldb_expr_result_ptr") &&
+            strncmp(value_name, "_ZGV", 4))
+        {
+            result_name = value_name;
+            m_result_is_pointer = true;
+            break;
+        }
+
+        if (strstr(value_name, "$__lldb_expr_result") &&
+            strncmp(value_name, "_ZGV", 4))
+        {
+            result_name = value_name;
+            m_result_is_pointer = false;
+            break;
+        }
+    }
+
+    if (!result_name)
+    {
+        if (log)
+            log->PutCString("Couldn't find result variable");
+
+        return true;
+    }
+
+    if (log)
+        log->Printf("Result name: \"%s\"", result_name);
+
+    Value *result_value = m_module->getNamedValue(result_name);
+
+    if (!result_value)
+    {
+        if (log)
+            log->PutCString("Result variable had no data");
+
+        if (m_error_stream)
+            m_error_stream->Printf("Internal error [IRForTarget]: Result variable's name (%s) exists, but not its definition\n", result_name);
+
+        return false;
+    }
+
+    if (log)
+        log->Printf("Found result in the IR: \"%s\"", PrintValue(result_value, false).c_str());
+
+    GlobalVariable *result_global = dyn_cast<GlobalVariable>(result_value);
+
+    if (!result_global)
+    {
+        if (log)
+            log->PutCString("Result variable isn't a GlobalVariable");
+
+        if (m_error_stream)
+            m_error_stream->Printf("Internal error [IRForTarget]: Result variable (%s) is defined, but is not a global variable\n", result_name);
+
+        return false;
+    }
+
+    clang::NamedDecl *result_decl = DeclForGlobal (result_global);
+    if (!result_decl)
+    {
+        if (log)
+            log->PutCString("Result variable doesn't have a corresponding Decl");
+
+        if (m_error_stream)
+            m_error_stream->Printf("Internal error [IRForTarget]: Result variable (%s) does not have a corresponding Clang entity\n", result_name);
+
+        return false;
+    }
+
+    if (log)
+    {
+        std::string decl_desc_str;
+        raw_string_ostream decl_desc_stream(decl_desc_str);
+        result_decl->print(decl_desc_stream);
+        decl_desc_stream.flush();
+
+        log->Printf("Found result decl: \"%s\"", decl_desc_str.c_str());
+    }
+
+    clang::VarDecl *result_var = dyn_cast<clang::VarDecl>(result_decl);
+    if (!result_var)
+    {
+        if (log)
+            log->PutCString("Result variable Decl isn't a VarDecl");
+
+        if (m_error_stream)
+            m_error_stream->Printf("Internal error [IRForTarget]: Result variable (%s)'s corresponding Clang entity isn't a variable\n", result_name);
+
+        return false;
+    }
+
+    // Get the next available result name from m_decl_map and create the persistent
+    // variable for it
+
+    // If the result is an Lvalue, it is emitted as a pointer; see
+    // ASTResultSynthesizer::SynthesizeBodyResult.
+    if (m_result_is_pointer)
+    {
+        clang::QualType pointer_qual_type = result_var->getType();
+        const clang::Type *pointer_type = pointer_qual_type.getTypePtr();
+
+        const clang::PointerType *pointer_pointertype = pointer_type->getAs<clang::PointerType>();
+        const clang::ObjCObjectPointerType *pointer_objcobjpointertype = pointer_type->getAs<clang::ObjCObjectPointerType>();
+
+        if (pointer_pointertype)
+        {
+            clang::QualType element_qual_type = pointer_pointertype->getPointeeType();
+
+            m_result_type = lldb_private::TypeFromParser(element_qual_type.getAsOpaquePtr(),
+                                                         lldb_private::ClangASTContext::GetASTContext(&result_decl->getASTContext()));
+        }
+        else if (pointer_objcobjpointertype)
+        {
+            clang::QualType element_qual_type = clang::QualType(pointer_objcobjpointertype->getObjectType(), 0);
+
+            m_result_type = lldb_private::TypeFromParser(element_qual_type.getAsOpaquePtr(),
+                                                         lldb_private::ClangASTContext::GetASTContext(&result_decl->getASTContext()));
+        }
+        else
+        {
+            if (log)
+                log->PutCString("Expected result to have pointer type, but it did not");
+
+            if (m_error_stream)
+                m_error_stream->Printf("Internal error [IRForTarget]: Lvalue result (%s) is not a pointer variable\n", result_name);
+
+            return false;
+        }
+    }
+    else
+    {
+        m_result_type = lldb_private::TypeFromParser(result_var->getType().getAsOpaquePtr(),
+                                                     lldb_private::ClangASTContext::GetASTContext(&result_decl->getASTContext()));
+    }
+
+
+    lldb::TargetSP target_sp (m_data_allocator.GetTarget());
+    lldb_private::ExecutionContext exe_ctx (target_sp, true);
+    if (m_result_type.GetBitSize(exe_ctx.GetBestExecutionContextScope()) == 0)
+    {
+        lldb_private::StreamString type_desc_stream;
+        m_result_type.DumpTypeDescription(&type_desc_stream);
+
+        if (log)
+            log->Printf("Result type has size 0");
+
+        if (m_error_stream)
+            m_error_stream->Printf("Error [IRForTarget]: Size of result type '%s' couldn't be determined\n",
+                                   type_desc_stream.GetData());
+        return false;
+    }
+
+    if (log)
+    {
+        lldb_private::StreamString type_desc_stream;
+        m_result_type.DumpTypeDescription(&type_desc_stream);
+
+        log->Printf("Result decl type: \"%s\"", type_desc_stream.GetData());
+    }
+
+    m_result_name = lldb_private::ConstString("$RESULT_NAME");
+
+    if (log)
+        log->Printf("Creating a new result global: \"%s\" with size 0x%" PRIx64,
+                    m_result_name.GetCString(),
+                    m_result_type.GetByteSize(nullptr));
+
+    // Construct a new result global and set up its metadata
+
+    GlobalVariable *new_result_global = new GlobalVariable((*m_module),
+                                                           result_global->getType()->getElementType(),
+                                                           false, /* not constant */
+                                                           GlobalValue::ExternalLinkage,
+                                                           NULL, /* no initializer */
+                                                           m_result_name.GetCString ());
+
+    // It's too late in compilation to create a new VarDecl for this, but we don't
+    // need to.  We point the metadata at the old VarDecl.  This creates an odd
+    // anomaly: a variable with a Value whose name is something like $0 and a
+    // Decl whose name is $__lldb_expr_result.  This condition is handled in
+    // ClangExpressionDeclMap::DoMaterialize, and the name of the variable is
+    // fixed up.
+
+    ConstantInt *new_constant_int = ConstantInt::get(llvm::Type::getInt64Ty(m_module->getContext()),
+                                                     reinterpret_cast<uint64_t>(result_decl),
+                                                     false);
+
+    llvm::Metadata *values[2];
+    values[0] = ConstantAsMetadata::get(new_result_global);
+    values[1] = ConstantAsMetadata::get(new_constant_int);
+
+    ArrayRef<Metadata *> value_ref(values, 2);
+
+    MDNode *persistent_global_md = MDNode::get(m_module->getContext(), value_ref);
+    NamedMDNode *named_metadata = m_module->getNamedMetadata("clang.global.decl.ptrs");
+    named_metadata->addOperand(persistent_global_md);
+
+    if (log)
+        log->Printf("Replacing \"%s\" with \"%s\"",
+                    PrintValue(result_global).c_str(),
+                    PrintValue(new_result_global).c_str());
+
+    if (result_global->use_empty())
+    {
+        // We need to synthesize a store for this variable, because otherwise
+        // there's nothing to put into its equivalent persistent variable.
+
+        BasicBlock &entry_block(llvm_function.getEntryBlock());
+        Instruction *first_entry_instruction(entry_block.getFirstNonPHIOrDbg());
+
+        if (!first_entry_instruction)
+            return false;
+
+        if (!result_global->hasInitializer())
+        {
+            if (log)
+                log->Printf("Couldn't find initializer for unused variable");
+
+            if (m_error_stream)
+                m_error_stream->Printf("Internal error [IRForTarget]: Result variable (%s) has no writes and no initializer\n", result_name);
+
+            return false;
+        }
+
+        Constant *initializer = result_global->getInitializer();
+
+        StoreInst *synthesized_store = new StoreInst(initializer,
+                                                     new_result_global,
+                                                     first_entry_instruction);
+
+        if (log)
+            log->Printf("Synthesized result store \"%s\"\n", PrintValue(synthesized_store).c_str());
+    }
+    else
+    {
+        result_global->replaceAllUsesWith(new_result_global);
+    }
+
+    if (!m_decl_map->AddPersistentVariable(result_decl,
+                                           m_result_name,
+                                           m_result_type,
+                                           true,
+                                           m_result_is_pointer))
+        return false;
+
+    result_global->eraseFromParent();
+
+    return true;
+}
+
+bool
+IRForTarget::RewriteObjCConstString (llvm::GlobalVariable *ns_str,
+                                     llvm::GlobalVariable *cstr)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    Type *ns_str_ty = ns_str->getType();
+
+    Type *i8_ptr_ty = Type::getInt8PtrTy(m_module->getContext());
+    Type *i32_ty = Type::getInt32Ty(m_module->getContext());
+    Type *i8_ty = Type::getInt8Ty(m_module->getContext());
+
+    if (!m_CFStringCreateWithBytes)
+    {
+        lldb::addr_t CFStringCreateWithBytes_addr;
+
+        static lldb_private::ConstString g_CFStringCreateWithBytes_str ("CFStringCreateWithBytes");
+
+        if (!m_decl_map->GetFunctionAddress (g_CFStringCreateWithBytes_str, CFStringCreateWithBytes_addr))
+        {
+            if (log)
+                log->PutCString("Couldn't find CFStringCreateWithBytes in the target");
+
+            if (m_error_stream)
+                m_error_stream->Printf("Error [IRForTarget]: Rewriting an Objective-C constant string requires CFStringCreateWithBytes\n");
+
+            return false;
+        }
+
+        if (log)
+            log->Printf("Found CFStringCreateWithBytes at 0x%" PRIx64, CFStringCreateWithBytes_addr);
+
+        // Build the function type:
+        //
+        // CFStringRef CFStringCreateWithBytes (
+        //   CFAllocatorRef alloc,
+        //   const UInt8 *bytes,
+        //   CFIndex numBytes,
+        //   CFStringEncoding encoding,
+        //   Boolean isExternalRepresentation
+        // );
+        //
+        // We make the following substitutions:
+        //
+        // CFStringRef -> i8*
+        // CFAllocatorRef -> i8*
+        // UInt8 * -> i8*
+        // CFIndex -> long (i32 or i64, as appropriate; we ask the module for its pointer size for now)
+        // CFStringEncoding -> i32
+        // Boolean -> i8
+
+        Type *arg_type_array[5];
+
+        arg_type_array[0] = i8_ptr_ty;
+        arg_type_array[1] = i8_ptr_ty;
+        arg_type_array[2] = m_intptr_ty;
+        arg_type_array[3] = i32_ty;
+        arg_type_array[4] = i8_ty;
+
+        ArrayRef<Type *> CFSCWB_arg_types(arg_type_array, 5);
+
+        llvm::Type *CFSCWB_ty = FunctionType::get(ns_str_ty, CFSCWB_arg_types, false);
+
+        // Build the constant containing the pointer to the function
+        PointerType *CFSCWB_ptr_ty = PointerType::getUnqual(CFSCWB_ty);
+        Constant *CFSCWB_addr_int = ConstantInt::get(m_intptr_ty, CFStringCreateWithBytes_addr, false);
+        m_CFStringCreateWithBytes = ConstantExpr::getIntToPtr(CFSCWB_addr_int, CFSCWB_ptr_ty);
+    }
+
+    ConstantDataSequential *string_array = NULL;
+
+    if (cstr)
+        string_array = dyn_cast<ConstantDataSequential>(cstr->getInitializer());
+
+    Constant *alloc_arg         = Constant::getNullValue(i8_ptr_ty);
+    Constant *bytes_arg         = cstr ? ConstantExpr::getBitCast(cstr, i8_ptr_ty) : Constant::getNullValue(i8_ptr_ty);
+    Constant *numBytes_arg      = ConstantInt::get(m_intptr_ty, cstr ? string_array->getNumElements() - 1 : 0, false);
+    Constant *encoding_arg      = ConstantInt::get(i32_ty, 0x0600, false); /* 0x0600 is kCFStringEncodingASCII */
+    Constant *isExternal_arg    = ConstantInt::get(i8_ty, 0x0, false); /* 0x0 is false */
+
+    Value *argument_array[5];
+
+    argument_array[0] = alloc_arg;
+    argument_array[1] = bytes_arg;
+    argument_array[2] = numBytes_arg;
+    argument_array[3] = encoding_arg;
+    argument_array[4] = isExternal_arg;
+
+    ArrayRef <Value *> CFSCWB_arguments(argument_array, 5);
+
+    FunctionValueCache CFSCWB_Caller ([this, &CFSCWB_arguments] (llvm::Function *function)->llvm::Value * {
+        return CallInst::Create(m_CFStringCreateWithBytes,
+                                CFSCWB_arguments,
+                                "CFStringCreateWithBytes",
+                                llvm::cast<Instruction>(m_entry_instruction_finder.GetValue(function)));
+    });
+
+    if (!UnfoldConstant(ns_str, CFSCWB_Caller, m_entry_instruction_finder))
+    {
+        if (log)
+            log->PutCString("Couldn't replace the NSString with the result of the call");
+
+        if (m_error_stream)
+            m_error_stream->Printf("Error [IRForTarget]: Couldn't replace an Objective-C constant string with a dynamic string\n");
+
+        return false;
+    }
+
+    ns_str->eraseFromParent();
+
+    return true;
+}
+
+bool
+IRForTarget::RewriteObjCConstStrings()
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    ValueSymbolTable& value_symbol_table = m_module->getValueSymbolTable();
+
+    for (ValueSymbolTable::iterator vi = value_symbol_table.begin(), ve = value_symbol_table.end();
+         vi != ve;
+         ++vi)
+    {
+        std::string value_name = vi->first().str();
+        const char *value_name_cstr = value_name.c_str();
+
+        if (strstr(value_name_cstr, "_unnamed_cfstring_"))
+        {
+            Value *nsstring_value = vi->second;
+
+            GlobalVariable *nsstring_global = dyn_cast<GlobalVariable>(nsstring_value);
+
+            if (!nsstring_global)
+            {
+                if (log)
+                    log->PutCString("NSString variable is not a GlobalVariable");
+
+                if (m_error_stream)
+                    m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string is not a global variable\n");
+
+                return false;
+            }
+
+            if (!nsstring_global->hasInitializer())
+            {
+                if (log)
+                    log->PutCString("NSString variable does not have an initializer");
+
+                if (m_error_stream)
+                    m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string does not have an initializer\n");
+
+                return false;
+            }
+
+            ConstantStruct *nsstring_struct = dyn_cast<ConstantStruct>(nsstring_global->getInitializer());
+
+            if (!nsstring_struct)
+            {
+                if (log)
+                    log->PutCString("NSString variable's initializer is not a ConstantStruct");
+
+                if (m_error_stream)
+                    m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string is not a structure constant\n");
+
+                return false;
+            }
+
+            // We expect the following structure:
+            //
+            // struct {
+            //   int *isa;
+            //   int flags;
+            //   char *str;
+            //   long length;
+            // };
+
+            if (nsstring_struct->getNumOperands() != 4)
+            {
+                if (log)
+                    log->Printf("NSString variable's initializer structure has an unexpected number of members.  Should be 4, is %d", nsstring_struct->getNumOperands());
+
+                if (m_error_stream)
+                    m_error_stream->Printf("Internal error [IRForTarget]: The struct for an Objective-C constant string is not as expected\n");
+
+                return false;
+            }
+
+            Constant *nsstring_member = nsstring_struct->getOperand(2);
+
+            if (!nsstring_member)
+            {
+                if (log)
+                    log->PutCString("NSString initializer's str element was empty");
+
+                if (m_error_stream)
+                    m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string does not have a string initializer\n");
+
+                return false;
+            }
+
+            ConstantExpr *nsstring_expr = dyn_cast<ConstantExpr>(nsstring_member);
+
+            if (!nsstring_expr)
+            {
+                if (log)
+                    log->PutCString("NSString initializer's str element is not a ConstantExpr");
+
+                if (m_error_stream)
+                    m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string's string initializer is not constant\n");
+
+                return false;
+            }
+
+            if (nsstring_expr->getOpcode() != Instruction::GetElementPtr)
+            {
+                if (log)
+                    log->Printf("NSString initializer's str element is not a GetElementPtr expression, it's a %s", nsstring_expr->getOpcodeName());
+
+                if (m_error_stream)
+                    m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string's string initializer is not an array\n");
+
+                return false;
+            }
+
+            Constant *nsstring_cstr = nsstring_expr->getOperand(0);
+
+            GlobalVariable *cstr_global = dyn_cast<GlobalVariable>(nsstring_cstr);
+
+            if (!cstr_global)
+            {
+                if (log)
+                    log->PutCString("NSString initializer's str element is not a GlobalVariable");
+
+                if (m_error_stream)
+                    m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string's string initializer doesn't point to a global\n");
+
+                return false;
+            }
+
+            if (!cstr_global->hasInitializer())
+            {
+                if (log)
+                    log->PutCString("NSString initializer's str element does not have an initializer");
+
+                if (m_error_stream)
+                    m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string's string initializer doesn't point to initialized data\n");
+
+                return false;
+            }
+
+            /*
+            if (!cstr_array)
+            {
+                if (log)
+                    log->PutCString("NSString initializer's str element is not a ConstantArray");
+
+                if (m_error_stream)
+                    m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string's string initializer doesn't point to an array\n");
+
+                return false;
+            }
+
+            if (!cstr_array->isCString())
+            {
+                if (log)
+                    log->PutCString("NSString initializer's str element is not a C string array");
+
+                if (m_error_stream)
+                    m_error_stream->Printf("Internal error [IRForTarget]: An Objective-C constant string's string initializer doesn't point to a C string\n");
+
+                return false;
+            }
+            */
+
+            ConstantDataArray *cstr_array = dyn_cast<ConstantDataArray>(cstr_global->getInitializer());
+
+            if (log)
+            {
+                if (cstr_array)
+                    log->Printf("Found NSString constant %s, which contains \"%s\"", value_name_cstr, cstr_array->getAsString().str().c_str());
+                else
+                    log->Printf("Found NSString constant %s, which contains \"\"", value_name_cstr);
+            }
+
+            if (!cstr_array)
+                cstr_global = NULL;
+
+            if (!RewriteObjCConstString(nsstring_global, cstr_global))
+            {
+                if (log)
+                    log->PutCString("Error rewriting the constant string");
+
+                // We don't print an error message here because RewriteObjCConstString has done so for us.
+
+                return false;
+            }
+        }
+    }
+
+    for (ValueSymbolTable::iterator vi = value_symbol_table.begin(), ve = value_symbol_table.end();
+         vi != ve;
+         ++vi)
+    {
+        std::string value_name = vi->first().str();
+        const char *value_name_cstr = value_name.c_str();
+
+        if (!strcmp(value_name_cstr, "__CFConstantStringClassReference"))
+        {
+            GlobalVariable *gv = dyn_cast<GlobalVariable>(vi->second);
+
+            if (!gv)
+            {
+                if (log)
+                    log->PutCString("__CFConstantStringClassReference is not a global variable");
+
+                if (m_error_stream)
+                    m_error_stream->Printf("Internal error [IRForTarget]: Found a CFConstantStringClassReference, but it is not a global object\n");
+
+                return false;
+            }
+
+            gv->eraseFromParent();
+
+            break;
+        }
+    }
+
+    return true;
+}
+
+static bool IsObjCSelectorRef (Value *value)
+{
+    GlobalVariable *global_variable = dyn_cast<GlobalVariable>(value);
+
+    if (!global_variable || !global_variable->hasName() || !global_variable->getName().startswith("OBJC_SELECTOR_REFERENCES_"))
+        return false;
+
+    return true;
+}
+
+// This function does not report errors; its callers are responsible.
+bool
+IRForTarget::RewriteObjCSelector (Instruction* selector_load)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    LoadInst *load = dyn_cast<LoadInst>(selector_load);
+
+    if (!load)
+        return false;
+
+    // Unpack the message name from the selector.  In LLVM IR, an objc_msgSend gets represented as
+    //
+    // %tmp     = load i8** @"OBJC_SELECTOR_REFERENCES_" ; <i8*>
+    // %call    = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %obj, i8* %tmp, ...) ; <i8*>
+    //
+    // where %obj is the object pointer and %tmp is the selector.
+    //
+    // @"OBJC_SELECTOR_REFERENCES_" is a pointer to a character array called @"\01L_OBJC_llvm_moduleETH_VAR_NAllvm_moduleE_".
+    // @"\01L_OBJC_llvm_moduleETH_VAR_NAllvm_moduleE_" contains the string.
+
+    // Find the pointer's initializer (a ConstantExpr with opcode GetElementPtr) and get the string from its target
+
+    GlobalVariable *_objc_selector_references_ = dyn_cast<GlobalVariable>(load->getPointerOperand());
+
+    if (!_objc_selector_references_ || !_objc_selector_references_->hasInitializer())
+        return false;
+
+    Constant *osr_initializer = _objc_selector_references_->getInitializer();
+
+    ConstantExpr *osr_initializer_expr = dyn_cast<ConstantExpr>(osr_initializer);
+
+    if (!osr_initializer_expr || osr_initializer_expr->getOpcode() != Instruction::GetElementPtr)
+        return false;
+
+    Value *osr_initializer_base = osr_initializer_expr->getOperand(0);
+
+    if (!osr_initializer_base)
+        return false;
+
+    // Find the string's initializer (a ConstantArray) and get the string from it
+
+    GlobalVariable *_objc_meth_var_name_ = dyn_cast<GlobalVariable>(osr_initializer_base);
+
+    if (!_objc_meth_var_name_ || !_objc_meth_var_name_->hasInitializer())
+        return false;
+
+    Constant *omvn_initializer = _objc_meth_var_name_->getInitializer();
+
+    ConstantDataArray *omvn_initializer_array = dyn_cast<ConstantDataArray>(omvn_initializer);
+
+    if (!omvn_initializer_array->isString())
+        return false;
+
+    std::string omvn_initializer_string = omvn_initializer_array->getAsString();
+
+    if (log)
+        log->Printf("Found Objective-C selector reference \"%s\"", omvn_initializer_string.c_str());
+
+    // Construct a call to sel_registerName
+
+    if (!m_sel_registerName)
+    {
+        lldb::addr_t sel_registerName_addr;
+
+        static lldb_private::ConstString g_sel_registerName_str ("sel_registerName");
+        if (!m_decl_map->GetFunctionAddress (g_sel_registerName_str, sel_registerName_addr))
+            return false;
+
+        if (log)
+            log->Printf("Found sel_registerName at 0x%" PRIx64, sel_registerName_addr);
+
+        // Build the function type: struct objc_selector *sel_registerName(uint8_t*)
+
+        // The below code would be "more correct," but in actuality what's required is uint8_t*
+        //Type *sel_type = StructType::get(m_module->getContext());
+        //Type *sel_ptr_type = PointerType::getUnqual(sel_type);
+        Type *sel_ptr_type = Type::getInt8PtrTy(m_module->getContext());
+
+        Type *type_array[1];
+
+        type_array[0] = llvm::Type::getInt8PtrTy(m_module->getContext());
+
+        ArrayRef<Type *> srN_arg_types(type_array, 1);
+
+        llvm::Type *srN_type = FunctionType::get(sel_ptr_type, srN_arg_types, false);
+
+        // Build the constant containing the pointer to the function
+        PointerType *srN_ptr_ty = PointerType::getUnqual(srN_type);
+        Constant *srN_addr_int = ConstantInt::get(m_intptr_ty, sel_registerName_addr, false);
+        m_sel_registerName = ConstantExpr::getIntToPtr(srN_addr_int, srN_ptr_ty);
+    }
+
+    Value *argument_array[1];
+
+    Constant *omvn_pointer = ConstantExpr::getBitCast(_objc_meth_var_name_, Type::getInt8PtrTy(m_module->getContext()));
+
+    argument_array[0] = omvn_pointer;
+
+    ArrayRef<Value *> srN_arguments(argument_array, 1);
+
+    CallInst *srN_call = CallInst::Create(m_sel_registerName,
+                                          srN_arguments,
+                                          "sel_registerName",
+                                          selector_load);
+
+    // Replace the load with the call in all users
+
+    selector_load->replaceAllUsesWith(srN_call);
+
+    selector_load->eraseFromParent();
+
+    return true;
+}
+
+bool
+IRForTarget::RewriteObjCSelectors (BasicBlock &basic_block)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    BasicBlock::iterator ii;
+
+    typedef SmallVector <Instruction*, 2> InstrList;
+    typedef InstrList::iterator InstrIterator;
+
+    InstrList selector_loads;
+
+    for (ii = basic_block.begin();
+         ii != basic_block.end();
+         ++ii)
+    {
+        Instruction &inst = *ii;
+
+        if (LoadInst *load = dyn_cast<LoadInst>(&inst))
+            if (IsObjCSelectorRef(load->getPointerOperand()))
+                selector_loads.push_back(&inst);
+    }
+
+    InstrIterator iter;
+
+    for (iter = selector_loads.begin();
+         iter != selector_loads.end();
+         ++iter)
+    {
+        if (!RewriteObjCSelector(*iter))
+        {
+            if (m_error_stream)
+                m_error_stream->Printf("Internal error [IRForTarget]: Couldn't change a static reference to an Objective-C selector to a dynamic reference\n");
+
+            if (log)
+                log->PutCString("Couldn't rewrite a reference to an Objective-C selector");
+
+            return false;
+        }
+    }
+
+    return true;
+}
+
+// This function does not report errors; its callers are responsible.
+bool
+IRForTarget::RewritePersistentAlloc (llvm::Instruction *persistent_alloc)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    AllocaInst *alloc = dyn_cast<AllocaInst>(persistent_alloc);
+
+    MDNode *alloc_md = alloc->getMetadata("clang.decl.ptr");
+
+    if (!alloc_md || !alloc_md->getNumOperands())
+        return false;
+
+    ConstantInt *constant_int = mdconst::dyn_extract<ConstantInt>(alloc_md->getOperand(0));
+
+    if (!constant_int)
+        return false;
+
+    // We attempt to register this as a new persistent variable with the DeclMap.
+
+    uintptr_t ptr = constant_int->getZExtValue();
+
+    clang::VarDecl *decl = reinterpret_cast<clang::VarDecl *>(ptr);
+
+    lldb_private::TypeFromParser result_decl_type (decl->getType().getAsOpaquePtr(),
+                                                   lldb_private::ClangASTContext::GetASTContext(&decl->getASTContext()));
+
+    StringRef decl_name (decl->getName());
+    lldb_private::ConstString persistent_variable_name (decl_name.data(), decl_name.size());
+    if (!m_decl_map->AddPersistentVariable(decl, persistent_variable_name, result_decl_type, false, false))
+        return false;
+
+    GlobalVariable *persistent_global = new GlobalVariable((*m_module),
+                                                           alloc->getType(),
+                                                           false, /* not constant */
+                                                           GlobalValue::ExternalLinkage,
+                                                           NULL, /* no initializer */
+                                                           alloc->getName().str().c_str());
+
+    // What we're going to do here is make believe this was a regular old external
+    // variable.  That means we need to make the metadata valid.
+
+    NamedMDNode *named_metadata = m_module->getOrInsertNamedMetadata("clang.global.decl.ptrs");
+
+    llvm::Metadata *values[2];
+    values[0] = ConstantAsMetadata::get(persistent_global);
+    values[1] = ConstantAsMetadata::get(constant_int);
+
+    ArrayRef<llvm::Metadata *> value_ref(values, 2);
+
+    MDNode *persistent_global_md = MDNode::get(m_module->getContext(), value_ref);
+    named_metadata->addOperand(persistent_global_md);
+
+    // Now, since the variable is a pointer variable, we will drop in a load of that
+    // pointer variable.
+
+    LoadInst *persistent_load = new LoadInst (persistent_global, "", alloc);
+
+    if (log)
+        log->Printf("Replacing \"%s\" with \"%s\"",
+                    PrintValue(alloc).c_str(),
+                    PrintValue(persistent_load).c_str());
+
+    alloc->replaceAllUsesWith(persistent_load);
+    alloc->eraseFromParent();
+
+    return true;
+}
+
+bool
+IRForTarget::RewritePersistentAllocs(llvm::BasicBlock &basic_block)
+{
+    if (!m_resolve_vars)
+        return true;
+
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    BasicBlock::iterator ii;
+
+    typedef SmallVector <Instruction*, 2> InstrList;
+    typedef InstrList::iterator InstrIterator;
+
+    InstrList pvar_allocs;
+
+    for (ii = basic_block.begin();
+         ii != basic_block.end();
+         ++ii)
+    {
+        Instruction &inst = *ii;
+
+        if (AllocaInst *alloc = dyn_cast<AllocaInst>(&inst))
+        {
+            llvm::StringRef alloc_name = alloc->getName();
+
+            if (alloc_name.startswith("$") &&
+                !alloc_name.startswith("$__lldb"))
+            {
+                if (alloc_name.find_first_of("0123456789") == 1)
+                {
+                    if (log)
+                        log->Printf("Rejecting a numeric persistent variable.");
+
+                    if (m_error_stream)
+                        m_error_stream->Printf("Error [IRForTarget]: Names starting with $0, $1, ... are reserved for use as result names\n");
+
+                    return false;
+                }
+
+                pvar_allocs.push_back(alloc);
+            }
+        }
+    }
+
+    InstrIterator iter;
+
+    for (iter = pvar_allocs.begin();
+         iter != pvar_allocs.end();
+         ++iter)
+    {
+        if (!RewritePersistentAlloc(*iter))
+        {
+            if (m_error_stream)
+                m_error_stream->Printf("Internal error [IRForTarget]: Couldn't rewrite the creation of a persistent variable\n");
+
+            if (log)
+                log->PutCString("Couldn't rewrite the creation of a persistent variable");
+
+            return false;
+        }
+    }
+
+    return true;
+}
+
+bool
+IRForTarget::MaterializeInitializer (uint8_t *data, Constant *initializer)
+{
+    if (!initializer)
+        return true;
+
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (log && log->GetVerbose())
+        log->Printf("  MaterializeInitializer(%p, %s)", (void *)data, PrintValue(initializer).c_str());
+
+    Type *initializer_type = initializer->getType();
+
+    if (ConstantInt *int_initializer = dyn_cast<ConstantInt>(initializer))
+    {
+        memcpy (data, int_initializer->getValue().getRawData(), m_target_data->getTypeStoreSize(initializer_type));
+        return true;
+    }
+    else if (ConstantDataArray *array_initializer = dyn_cast<ConstantDataArray>(initializer))
+    {
+        if (array_initializer->isString())
+        {
+            std::string array_initializer_string = array_initializer->getAsString();
+            memcpy (data, array_initializer_string.c_str(), m_target_data->getTypeStoreSize(initializer_type));
+        }
+        else
+        {
+            ArrayType *array_initializer_type = array_initializer->getType();
+            Type *array_element_type = array_initializer_type->getElementType();
+
+            size_t element_size = m_target_data->getTypeAllocSize(array_element_type);
+
+            for (unsigned i = 0; i < array_initializer->getNumOperands(); ++i)
+            {
+                Value *operand_value = array_initializer->getOperand(i);
+                Constant *operand_constant = dyn_cast<Constant>(operand_value);
+
+                if (!operand_constant)
+                    return false;
+
+                if (!MaterializeInitializer(data + (i * element_size), operand_constant))
+                    return false;
+            }
+        }
+        return true;
+    }
+    else if (ConstantStruct *struct_initializer = dyn_cast<ConstantStruct>(initializer))
+    {
+        StructType *struct_initializer_type = struct_initializer->getType();
+        const StructLayout *struct_layout = m_target_data->getStructLayout(struct_initializer_type);
+
+        for (unsigned i = 0;
+             i < struct_initializer->getNumOperands();
+             ++i)
+        {
+            if (!MaterializeInitializer(data + struct_layout->getElementOffset(i), struct_initializer->getOperand(i)))
+                return false;
+        }
+        return true;
+    }
+    else if (isa<ConstantAggregateZero>(initializer))
+    {
+        memset(data, 0, m_target_data->getTypeStoreSize(initializer_type));
+        return true;
+    }
+    return false;
+}
+
+bool
+IRForTarget::MaterializeInternalVariable (GlobalVariable *global_variable)
+{
+    if (GlobalVariable::isExternalLinkage(global_variable->getLinkage()))
+        return false;
+
+    if (global_variable == m_reloc_placeholder)
+        return true;
+
+    uint64_t offset = m_data_allocator.GetStream().GetSize();
+
+    llvm::Type *variable_type = global_variable->getType();
+
+    Constant *initializer = global_variable->getInitializer();
+
+    llvm::Type *initializer_type = initializer->getType();
+
+    size_t size = m_target_data->getTypeAllocSize(initializer_type);
+    size_t align = m_target_data->getPrefTypeAlignment(initializer_type);
+
+    const size_t mask = (align - 1);
+    uint64_t aligned_offset = (offset + mask) & ~mask;
+    m_data_allocator.GetStream().PutNHex8(aligned_offset - offset, 0);
+    offset = aligned_offset;
+
+    lldb_private::DataBufferHeap data(size, '\0');
+
+    if (initializer)
+        if (!MaterializeInitializer(data.GetBytes(), initializer))
+            return false;
+
+    m_data_allocator.GetStream().Write(data.GetBytes(), data.GetByteSize());
+
+    Constant *new_pointer = BuildRelocation(variable_type, offset);
+
+    global_variable->replaceAllUsesWith(new_pointer);
+
+    global_variable->eraseFromParent();
+
+    return true;
+}
+
+// This function does not report errors; its callers are responsible.
+bool
+IRForTarget::MaybeHandleVariable (Value *llvm_value_ptr)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (log)
+        log->Printf("MaybeHandleVariable (%s)", PrintValue(llvm_value_ptr).c_str());
+
+    if (ConstantExpr *constant_expr = dyn_cast<ConstantExpr>(llvm_value_ptr))
+    {
+        switch (constant_expr->getOpcode())
+        {
+        default:
+            break;
+        case Instruction::GetElementPtr:
+        case Instruction::BitCast:
+            Value *s = constant_expr->getOperand(0);
+            if (!MaybeHandleVariable(s))
+                return false;
+        }
+    }
+    else if (GlobalVariable *global_variable = dyn_cast<GlobalVariable>(llvm_value_ptr))
+    {
+        if (!GlobalValue::isExternalLinkage(global_variable->getLinkage()))
+            return MaterializeInternalVariable(global_variable);
+
+        clang::NamedDecl *named_decl = DeclForGlobal(global_variable);
+
+        if (!named_decl)
+        {
+            if (IsObjCSelectorRef(llvm_value_ptr))
+                return true;
+
+            if (!global_variable->hasExternalLinkage())
+                return true;
+
+            if (log)
+                log->Printf("Found global variable \"%s\" without metadata", global_variable->getName().str().c_str());
+
+            return false;
+        }
+
+        std::string name (named_decl->getName().str());
+
+        clang::ValueDecl *value_decl = dyn_cast<clang::ValueDecl>(named_decl);
+        if (value_decl == NULL)
+            return false;
+
+        lldb_private::CompilerType compiler_type(&value_decl->getASTContext(), value_decl->getType());
+
+        const Type *value_type = NULL;
+
+        if (name[0] == '$')
+        {
+            // The $__lldb_expr_result name indicates the return value has allocated as
+            // a static variable.  Per the comment at ASTResultSynthesizer::SynthesizeBodyResult,
+            // accesses to this static variable need to be redirected to the result of dereferencing
+            // a pointer that is passed in as one of the arguments.
+            //
+            // Consequently, when reporting the size of the type, we report a pointer type pointing
+            // to the type of $__lldb_expr_result, not the type itself.
+            //
+            // We also do this for any user-declared persistent variables.
+            compiler_type = compiler_type.GetPointerType();
+            value_type = PointerType::get(global_variable->getType(), 0);
+        }
+        else
+        {
+            value_type = global_variable->getType();
+        }
+
+        const uint64_t value_size = compiler_type.GetByteSize(nullptr);
+        lldb::offset_t value_alignment = (compiler_type.GetTypeBitAlign() + 7ull) / 8ull;
+
+        if (log)
+        {
+            log->Printf("Type of \"%s\" is [clang \"%s\", llvm \"%s\"] [size %" PRIu64 ", align %" PRIu64 "]",
+                        name.c_str(),
+                        lldb_private::ClangASTContext::GetQualType(compiler_type).getAsString().c_str(),
+                        PrintType(value_type).c_str(),
+                        value_size,
+                        value_alignment);
+        }
+
+
+        if (named_decl && !m_decl_map->AddValueToStruct(named_decl,
+                                                        lldb_private::ConstString (name.c_str()),
+                                                        llvm_value_ptr,
+                                                        value_size,
+                                                        value_alignment))
+        {
+            if (!global_variable->hasExternalLinkage())
+                return true;
+            else if (HandleSymbol (global_variable))
+                return true;
+            else
+                return false;
+        }
+    }
+    else if (dyn_cast<llvm::Function>(llvm_value_ptr))
+    {
+        if (log)
+            log->Printf("Function pointers aren't handled right now");
+
+        return false;
+    }
+
+    return true;
+}
+
+// This function does not report errors; its callers are responsible.
+bool
+IRForTarget::HandleSymbol (Value *symbol)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    lldb_private::ConstString name(symbol->getName().str().c_str());
+
+    lldb::addr_t symbol_addr = m_decl_map->GetSymbolAddress (name, lldb::eSymbolTypeAny);
+
+    if (symbol_addr == LLDB_INVALID_ADDRESS)
+    {
+        if (log)
+            log->Printf ("Symbol \"%s\" had no address", name.GetCString());
+
+        return false;
+    }
+
+    if (log)
+        log->Printf("Found \"%s\" at 0x%" PRIx64, name.GetCString(), symbol_addr);
+
+    Type *symbol_type = symbol->getType();
+
+    Constant *symbol_addr_int = ConstantInt::get(m_intptr_ty, symbol_addr, false);
+
+    Value *symbol_addr_ptr = ConstantExpr::getIntToPtr(symbol_addr_int, symbol_type);
+
+    if (log)
+        log->Printf("Replacing %s with %s", PrintValue(symbol).c_str(), PrintValue(symbol_addr_ptr).c_str());
+
+    symbol->replaceAllUsesWith(symbol_addr_ptr);
+
+    return true;
+}
+
+bool
+IRForTarget::MaybeHandleCallArguments (CallInst *Old)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (log)
+        log->Printf("MaybeHandleCallArguments(%s)", PrintValue(Old).c_str());
+
+    for (unsigned op_index = 0, num_ops = Old->getNumArgOperands();
+         op_index < num_ops;
+         ++op_index)
+        if (!MaybeHandleVariable(Old->getArgOperand(op_index))) // conservatively believe that this is a store
+        {
+            if (m_error_stream)
+                m_error_stream->Printf("Internal error [IRForTarget]: Couldn't rewrite one of the arguments of a function call.\n");
+
+            return false;
+        }
+
+    return true;
+}
+
+bool
+IRForTarget::HandleObjCClass(Value *classlist_reference)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    GlobalVariable *global_variable = dyn_cast<GlobalVariable>(classlist_reference);
+
+    if (!global_variable)
+        return false;
+
+    Constant *initializer = global_variable->getInitializer();
+
+    if (!initializer)
+        return false;
+
+    if (!initializer->hasName())
+        return false;
+
+    StringRef name(initializer->getName());
+    lldb_private::ConstString name_cstr(name.str().c_str());
+    lldb::addr_t class_ptr = m_decl_map->GetSymbolAddress(name_cstr, lldb::eSymbolTypeObjCClass);
+
+    if (log)
+        log->Printf("Found reference to Objective-C class %s (0x%llx)", name_cstr.AsCString(), (unsigned long long)class_ptr);
+
+    if (class_ptr == LLDB_INVALID_ADDRESS)
+        return false;
+
+    if (global_variable->use_empty())
+        return false;
+
+    SmallVector<LoadInst *, 2> load_instructions;
+
+    for (llvm::User *u : global_variable->users())
+    {
+        if (LoadInst *load_instruction = dyn_cast<LoadInst>(u))
+            load_instructions.push_back(load_instruction);
+    }
+
+    if (load_instructions.empty())
+        return false;
+
+    Constant *class_addr = ConstantInt::get(m_intptr_ty, (uint64_t)class_ptr);
+
+    for (LoadInst *load_instruction : load_instructions)
+    {
+        Constant *class_bitcast = ConstantExpr::getIntToPtr(class_addr, load_instruction->getType());
+
+        load_instruction->replaceAllUsesWith(class_bitcast);
+
+        load_instruction->eraseFromParent();
+    }
+
+    return true;
+}
+
+bool
+IRForTarget::RemoveCXAAtExit (BasicBlock &basic_block)
+{
+    BasicBlock::iterator ii;
+
+    std::vector<CallInst *> calls_to_remove;
+
+    for (ii = basic_block.begin();
+         ii != basic_block.end();
+         ++ii)
+    {
+        Instruction &inst = *ii;
+
+        CallInst *call = dyn_cast<CallInst>(&inst);
+
+        // MaybeHandleCallArguments handles error reporting; we are silent here
+        if (!call)
+            continue;
+
+        bool remove = false;
+
+        llvm::Function *func = call->getCalledFunction();
+
+        if (func && func->getName() == "__cxa_atexit")
+            remove = true;
+
+        llvm::Value *val = call->getCalledValue();
+
+        if (val && val->getName() == "__cxa_atexit")
+            remove = true;
+
+        if (remove)
+            calls_to_remove.push_back(call);
+    }
+
+    for (std::vector<CallInst *>::iterator ci = calls_to_remove.begin(), ce = calls_to_remove.end();
+         ci != ce;
+         ++ci)
+    {
+        (*ci)->eraseFromParent();
+    }
+
+    return true;
+}
+
+bool
+IRForTarget::ResolveCalls(BasicBlock &basic_block)
+{
+    /////////////////////////////////////////////////////////////////////////
+    // Prepare the current basic block for execution in the remote process
+    //
+
+    BasicBlock::iterator ii;
+
+    for (ii = basic_block.begin();
+         ii != basic_block.end();
+         ++ii)
+    {
+        Instruction &inst = *ii;
+
+        CallInst *call = dyn_cast<CallInst>(&inst);
+
+        // MaybeHandleCallArguments handles error reporting; we are silent here
+        if (call && !MaybeHandleCallArguments(call))
+            return false;
+    }
+
+    return true;
+}
+
+bool
+IRForTarget::ResolveExternals (Function &llvm_function)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    for (GlobalVariable &global_var : m_module->globals())
+    {
+        std::string global_name = global_var.getName().str();
+
+        if (log)
+            log->Printf("Examining %s, DeclForGlobalValue returns %p",
+                        global_name.c_str(),
+                        static_cast<void*>(DeclForGlobal(&global_var)));
+
+        if (global_name.find("OBJC_IVAR") == 0)
+        {
+            if (!HandleSymbol(&global_var))
+            {
+                if (m_error_stream)
+                    m_error_stream->Printf("Error [IRForTarget]: Couldn't find Objective-C indirect ivar symbol %s\n", global_name.c_str());
+
+                return false;
+            }
+        }
+        else if (global_name.find("OBJC_CLASSLIST_REFERENCES_$") != global_name.npos)
+        {
+            if (!HandleObjCClass(&global_var))
+            {
+                if (m_error_stream)
+                    m_error_stream->Printf("Error [IRForTarget]: Couldn't resolve the class for an Objective-C static method call\n");
+
+                return false;
+            }
+        }
+        else if (global_name.find("OBJC_CLASSLIST_SUP_REFS_$") != global_name.npos)
+        {
+            if (!HandleObjCClass(&global_var))
+            {
+                if (m_error_stream)
+                    m_error_stream->Printf("Error [IRForTarget]: Couldn't resolve the class for an Objective-C static method call\n");
+
+                return false;
+            }
+        }
+        else if (DeclForGlobal(&global_var))
+        {
+            if (!MaybeHandleVariable (&global_var))
+            {
+                if (m_error_stream)
+                    m_error_stream->Printf("Internal error [IRForTarget]: Couldn't rewrite external variable %s\n", global_name.c_str());
+
+                return false;
+            }
+        }
+    }
+
+    return true;
+}
+
+bool
+IRForTarget::ReplaceStrings ()
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    typedef std::map <GlobalVariable *, size_t> OffsetsTy;
+
+    OffsetsTy offsets;
+
+    for (GlobalVariable &gv : m_module->globals())
+    {
+        if (!gv.hasInitializer())
+            continue;
+
+        Constant *gc = gv.getInitializer();
+
+        std::string str;
+
+        if (gc->isNullValue())
+        {
+            Type *gc_type = gc->getType();
+
+            ArrayType *gc_array_type = dyn_cast<ArrayType>(gc_type);
+
+            if (!gc_array_type)
+                continue;
+
+            Type *gc_element_type = gc_array_type->getElementType();
+
+            IntegerType *gc_integer_type = dyn_cast<IntegerType>(gc_element_type);
+
+            if (gc_integer_type->getBitWidth() != 8)
+                continue;
+
+            str = "";
+        }
+        else
+        {
+            ConstantDataArray *gc_array = dyn_cast<ConstantDataArray>(gc);
+
+            if (!gc_array)
+                continue;
+
+            if (!gc_array->isCString())
+                continue;
+
+            if (log)
+                log->Printf("Found a GlobalVariable with string initializer %s", PrintValue(gc).c_str());
+
+            str = gc_array->getAsString();
+        }
+
+        offsets[&gv] = m_data_allocator.GetStream().GetSize();
+
+        m_data_allocator.GetStream().Write(str.c_str(), str.length() + 1);
+    }
+
+    Type *char_ptr_ty = Type::getInt8PtrTy(m_module->getContext());
+
+    for (OffsetsTy::iterator oi = offsets.begin(), oe = offsets.end();
+         oi != oe;
+         ++oi)
+    {
+        GlobalVariable *gv = oi->first;
+        size_t offset = oi->second;
+
+        Constant *new_initializer = BuildRelocation(char_ptr_ty, offset);
+
+        if (log)
+            log->Printf("Replacing GV %s with %s", PrintValue(gv).c_str(), PrintValue(new_initializer).c_str());
+
+        for (llvm::User *u : gv->users())
+        {
+            if (log)
+                log->Printf("Found use %s", PrintValue(u).c_str());
+
+            ConstantExpr *const_expr = dyn_cast<ConstantExpr>(u);
+            StoreInst *store_inst = dyn_cast<StoreInst>(u);
+
+            if (const_expr)
+            {
+                if (const_expr->getOpcode() != Instruction::GetElementPtr)
+                {
+                    if (log)
+                        log->Printf("Use (%s) of string variable is not a GetElementPtr constant", PrintValue(const_expr).c_str());
+
+                    return false;
+                }
+
+                Constant *bit_cast = ConstantExpr::getBitCast(new_initializer, const_expr->getOperand(0)->getType());
+                Constant *new_gep = const_expr->getWithOperandReplaced(0, bit_cast);
+
+                const_expr->replaceAllUsesWith(new_gep);
+            }
+            else if (store_inst)
+            {
+                Constant *bit_cast = ConstantExpr::getBitCast(new_initializer, store_inst->getValueOperand()->getType());
+
+                store_inst->setOperand(0, bit_cast);
+            }
+            else
+            {
+                if (log)
+                    log->Printf("Use (%s) of string variable is neither a constant nor a store", PrintValue(const_expr).c_str());
+
+                return false;
+            }
+        }
+
+        gv->eraseFromParent();
+    }
+
+    return true;
+}
+
+bool
+IRForTarget::ReplaceStaticLiterals (llvm::BasicBlock &basic_block)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    typedef SmallVector <Value*, 2> ConstantList;
+    typedef SmallVector <llvm::Instruction*, 2> UserList;
+    typedef ConstantList::iterator ConstantIterator;
+    typedef UserList::iterator UserIterator;
+
+    ConstantList static_constants;
+    UserList static_users;
+
+    for (BasicBlock::iterator ii = basic_block.begin(), ie = basic_block.end();
+         ii != ie;
+         ++ii)
+    {
+        llvm::Instruction &inst = *ii;
+
+        for (Value *operand_val : inst.operand_values())
+        {
+            ConstantFP *operand_constant_fp = dyn_cast<ConstantFP>(operand_val);
+
+            if (operand_constant_fp/* && operand_constant_fp->getType()->isX86_FP80Ty()*/)
+            {
+                static_constants.push_back(operand_val);
+                static_users.push_back(&*ii);
+            }
+        }
+    }
+
+    ConstantIterator constant_iter;
+    UserIterator user_iter;
+
+    for (constant_iter = static_constants.begin(), user_iter = static_users.begin();
+         constant_iter != static_constants.end();
+         ++constant_iter, ++user_iter)
+    {
+        Value *operand_val = *constant_iter;
+        llvm::Instruction *inst = *user_iter;
+
+        ConstantFP *operand_constant_fp = dyn_cast<ConstantFP>(operand_val);
+
+        if (operand_constant_fp)
+        {
+            Type *operand_type = operand_constant_fp->getType();
+
+            APFloat operand_apfloat = operand_constant_fp->getValueAPF();
+            APInt operand_apint = operand_apfloat.bitcastToAPInt();
+
+            const uint8_t* operand_raw_data = (const uint8_t*)operand_apint.getRawData();
+            size_t operand_data_size = operand_apint.getBitWidth() / 8;
+
+            if (log)
+            {
+                std::string s;
+                raw_string_ostream ss(s);
+                for (size_t index = 0;
+                     index < operand_data_size;
+                     ++index)
+                {
+                    ss << (uint32_t)operand_raw_data[index];
+                    ss << " ";
+                }
+                ss.flush();
+
+                log->Printf("Found ConstantFP with size %" PRIu64 " and raw data %s", (uint64_t)operand_data_size, s.c_str());
+            }
+
+            lldb_private::DataBufferHeap data(operand_data_size, 0);
+
+            if (lldb_private::endian::InlHostByteOrder() != m_data_allocator.GetStream().GetByteOrder())
+            {
+                uint8_t *data_bytes = data.GetBytes();
+
+                for (size_t index = 0;
+                     index < operand_data_size;
+                     ++index)
+                {
+                    data_bytes[index] = operand_raw_data[operand_data_size - (1 + index)];
+                }
+            }
+            else
+            {
+                memcpy(data.GetBytes(), operand_raw_data, operand_data_size);
+            }
+
+            uint64_t offset = m_data_allocator.GetStream().GetSize();
+
+            size_t align = m_target_data->getPrefTypeAlignment(operand_type);
+
+            const size_t mask = (align - 1);
+            uint64_t aligned_offset = (offset + mask) & ~mask;
+            m_data_allocator.GetStream().PutNHex8(aligned_offset - offset, 0);
+
+            m_data_allocator.GetStream().Write(data.GetBytes(), operand_data_size);
+
+            llvm::Type *fp_ptr_ty = operand_constant_fp->getType()->getPointerTo();
+
+            Constant *new_pointer = BuildRelocation(fp_ptr_ty, aligned_offset);
+
+            llvm::LoadInst *fp_load = new llvm::LoadInst(new_pointer, "fp_load", inst);
+
+            operand_constant_fp->replaceAllUsesWith(fp_load);
+        }
+    }
+
+    return true;
+}
+
+static bool isGuardVariableRef(Value *V)
+{
+    Constant *Old = NULL;
+
+    if (!(Old = dyn_cast<Constant>(V)))
+        return false;
+
+    ConstantExpr *CE = NULL;
+
+    if ((CE = dyn_cast<ConstantExpr>(V)))
+    {
+        if (CE->getOpcode() != Instruction::BitCast)
+            return false;
+
+        Old = CE->getOperand(0);
+    }
+
+    GlobalVariable *GV = dyn_cast<GlobalVariable>(Old);
+
+    if (!GV || !GV->hasName() ||
+        (!GV->getName().startswith("_ZGV") && // Itanium ABI guard variable
+         !GV->getName().endswith("@4IA")))    // Microsoft ABI guard variable
+    {
+        return false;
+    }
+
+    return true;
+}
+
+void
+IRForTarget::TurnGuardLoadIntoZero(llvm::Instruction* guard_load)
+{
+    Constant *zero(Constant::getNullValue(guard_load->getType()));
+    guard_load->replaceAllUsesWith(zero);
+    guard_load->eraseFromParent();
+}
+
+static void ExciseGuardStore(Instruction* guard_store)
+{
+    guard_store->eraseFromParent();
+}
+
+bool
+IRForTarget::RemoveGuards(BasicBlock &basic_block)
+{
+    ///////////////////////////////////////////////////////
+    // Eliminate any reference to guard variables found.
+    //
+
+    BasicBlock::iterator ii;
+
+    typedef SmallVector <Instruction*, 2> InstrList;
+    typedef InstrList::iterator InstrIterator;
+
+    InstrList guard_loads;
+    InstrList guard_stores;
+
+    for (ii = basic_block.begin();
+         ii != basic_block.end();
+         ++ii)
+    {
+        Instruction &inst = *ii;
+
+        if (LoadInst *load = dyn_cast<LoadInst>(&inst))
+            if (isGuardVariableRef(load->getPointerOperand()))
+                guard_loads.push_back(&inst);
+
+        if (StoreInst *store = dyn_cast<StoreInst>(&inst))
+            if (isGuardVariableRef(store->getPointerOperand()))
+                guard_stores.push_back(&inst);
+    }
+
+    InstrIterator iter;
+
+    for (iter = guard_loads.begin();
+         iter != guard_loads.end();
+         ++iter)
+        TurnGuardLoadIntoZero(*iter);
+
+    for (iter = guard_stores.begin();
+         iter != guard_stores.end();
+         ++iter)
+        ExciseGuardStore(*iter);
+
+    return true;
+}
+
+// This function does not report errors; its callers are responsible.
+bool
+IRForTarget::UnfoldConstant(Constant *old_constant,
+                            FunctionValueCache &value_maker,
+                            FunctionValueCache &entry_instruction_finder)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    SmallVector<User*, 16> users;
+
+    // We do this because the use list might change, invalidating our iterator.
+    // Much better to keep a work list ourselves.
+    for (llvm::User *u : old_constant->users())
+        users.push_back(u);
+
+    for (size_t i = 0;
+         i < users.size();
+         ++i)
+    {
+        User *user = users[i];
+
+        if (Constant *constant = dyn_cast<Constant>(user))
+        {
+            // synthesize a new non-constant equivalent of the constant
+
+            if (ConstantExpr *constant_expr = dyn_cast<ConstantExpr>(constant))
+            {
+                switch (constant_expr->getOpcode())
+                {
+                default:
+                    if (log)
+                        log->Printf("Unhandled constant expression type: \"%s\"", PrintValue(constant_expr).c_str());
+                    return false;
+                case Instruction::BitCast:
+                    {
+                        FunctionValueCache bit_cast_maker ([&value_maker, &entry_instruction_finder, old_constant, constant_expr] (llvm::Function *function)->llvm::Value* {
+                            // UnaryExpr
+                            //   OperandList[0] is value
+
+                            if (constant_expr->getOperand(0) != old_constant)
+                                return constant_expr;
+
+                            return new BitCastInst(value_maker.GetValue(function),
+                                                   constant_expr->getType(),
+                                                   "",
+                                                   llvm::cast<Instruction>(entry_instruction_finder.GetValue(function)));
+                        });
+
+                        if (!UnfoldConstant(constant_expr, bit_cast_maker, entry_instruction_finder))
+                            return false;
+                    }
+                    break;
+                case Instruction::GetElementPtr:
+                    {
+                        // GetElementPtrConstantExpr
+                        //   OperandList[0] is base
+                        //   OperandList[1]... are indices
+
+                        FunctionValueCache get_element_pointer_maker ([&value_maker, &entry_instruction_finder, old_constant, constant_expr] (llvm::Function *function)->llvm::Value* {
+                            Value *ptr = constant_expr->getOperand(0);
+
+                            if (ptr == old_constant)
+                                ptr = value_maker.GetValue(function);
+
+                            std::vector<Value*> index_vector;
+
+                            unsigned operand_index;
+                            unsigned num_operands = constant_expr->getNumOperands();
+
+                            for (operand_index = 1;
+                                 operand_index < num_operands;
+                                 ++operand_index)
+                            {
+                                Value *operand = constant_expr->getOperand(operand_index);
+
+                                if (operand == old_constant)
+                                    operand = value_maker.GetValue(function);
+
+                                index_vector.push_back(operand);
+                            }
+
+                            ArrayRef <Value*> indices(index_vector);
+
+                            return GetElementPtrInst::Create(nullptr, ptr, indices, "", llvm::cast<Instruction>(entry_instruction_finder.GetValue(function)));
+                        });
+
+                        if (!UnfoldConstant(constant_expr, get_element_pointer_maker, entry_instruction_finder))
+                            return false;
+                    }
+                    break;
+                }
+            }
+            else
+            {
+                if (log)
+                    log->Printf("Unhandled constant type: \"%s\"", PrintValue(constant).c_str());
+                return false;
+            }
+        }
+        else
+        {
+            if (Instruction *inst = llvm::dyn_cast<Instruction>(user))
+            {
+                inst->replaceUsesOfWith(old_constant, value_maker.GetValue(inst->getParent()->getParent()));
+            }
+            else
+            {
+                if (log)
+                    log->Printf("Unhandled non-constant type: \"%s\"", PrintValue(user).c_str());
+                return false;
+            }
+        }
+    }
+
+    if (!isa<GlobalValue>(old_constant))
+    {
+        old_constant->destroyConstant();
+    }
+
+    return true;
+}
+
+bool
+IRForTarget::ReplaceVariables (Function &llvm_function)
+{
+    if (!m_resolve_vars)
+        return true;
+
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    m_decl_map->DoStructLayout();
+
+    if (log)
+        log->Printf("Element arrangement:");
+
+    uint32_t num_elements;
+    uint32_t element_index;
+
+    size_t size;
+    lldb::offset_t alignment;
+
+    if (!m_decl_map->GetStructInfo (num_elements, size, alignment))
+        return false;
+
+    Function::arg_iterator iter(llvm_function.getArgumentList().begin());
+
+    if (iter == llvm_function.getArgumentList().end())
+    {
+        if (m_error_stream)
+            m_error_stream->Printf("Internal error [IRForTarget]: Wrapper takes no arguments (should take at least a struct pointer)");
+
+        return false;
+    }
+
+    Argument *argument = &*iter;
+
+    if (argument->getName().equals("this"))
+    {
+        ++iter;
+
+        if (iter == llvm_function.getArgumentList().end())
+        {
+            if (m_error_stream)
+                m_error_stream->Printf("Internal error [IRForTarget]: Wrapper takes only 'this' argument (should take a struct pointer too)");
+
+            return false;
+        }
+
+        argument = &*iter;
+    }
+    else if (argument->getName().equals("self"))
+    {
+        ++iter;
+
+        if (iter == llvm_function.getArgumentList().end())
+        {
+            if (m_error_stream)
+                m_error_stream->Printf("Internal error [IRForTarget]: Wrapper takes only 'self' argument (should take '_cmd' and a struct pointer too)");
+
+            return false;
+        }
+
+        if (!iter->getName().equals("_cmd"))
+        {
+            if (m_error_stream)
+                m_error_stream->Printf("Internal error [IRForTarget]: Wrapper takes '%s' after 'self' argument (should take '_cmd')", iter->getName().str().c_str());
+
+            return false;
+        }
+
+        ++iter;
+
+        if (iter == llvm_function.getArgumentList().end())
+        {
+            if (m_error_stream)
+                m_error_stream->Printf("Internal error [IRForTarget]: Wrapper takes only 'self' and '_cmd' arguments (should take a struct pointer too)");
+
+            return false;
+        }
+
+        argument = &*iter;
+    }
+
+    if (!argument->getName().equals("$__lldb_arg"))
+    {
+        if (m_error_stream)
+            m_error_stream->Printf("Internal error [IRForTarget]: Wrapper takes an argument named '%s' instead of the struct pointer", argument->getName().str().c_str());
+
+        return false;
+    }
+
+    if (log)
+        log->Printf("Arg: \"%s\"", PrintValue(argument).c_str());
+
+    BasicBlock &entry_block(llvm_function.getEntryBlock());
+    Instruction *FirstEntryInstruction(entry_block.getFirstNonPHIOrDbg());
+
+    if (!FirstEntryInstruction)
+    {
+        if (m_error_stream)
+            m_error_stream->Printf("Internal error [IRForTarget]: Couldn't find the first instruction in the wrapper for use in rewriting");
+
+        return false;
+    }
+
+    LLVMContext &context(m_module->getContext());
+    IntegerType *offset_type(Type::getInt32Ty(context));
+
+    if (!offset_type)
+    {
+        if (m_error_stream)
+            m_error_stream->Printf("Internal error [IRForTarget]: Couldn't produce an offset type");
+
+        return false;
+    }
+
+    for (element_index = 0; element_index < num_elements; ++element_index)
+    {
+        const clang::NamedDecl *decl = NULL;
+        Value *value = NULL;
+        lldb::offset_t offset;
+        lldb_private::ConstString name;
+
+        if (!m_decl_map->GetStructElement (decl, value, offset, name, element_index))
+        {
+            if (m_error_stream)
+                m_error_stream->Printf("Internal error [IRForTarget]: Structure information is incomplete");
+
+            return false;
+        }
+
+        if (log)
+            log->Printf("  \"%s\" (\"%s\") placed at %" PRIu64,
+                        name.GetCString(),
+                        decl->getNameAsString().c_str(),
+                        offset);
+
+        if (value)
+        {
+            if (log)
+                log->Printf("    Replacing [%s]", PrintValue(value).c_str());
+
+            FunctionValueCache body_result_maker ([this, name, offset_type, offset, argument, value] (llvm::Function *function)->llvm::Value * {
+                // Per the comment at ASTResultSynthesizer::SynthesizeBodyResult, in cases where the result
+                // variable is an rvalue, we have to synthesize a dereference of the appropriate structure
+                // entry in order to produce the static variable that the AST thinks it is accessing.
+
+                llvm::Instruction *entry_instruction = llvm::cast<Instruction>(m_entry_instruction_finder.GetValue(function));
+
+                ConstantInt *offset_int(ConstantInt::get(offset_type, offset, true));
+                GetElementPtrInst *get_element_ptr = GetElementPtrInst::Create(nullptr,
+                                                                               argument,
+                                                                               offset_int,
+                                                                               "",
+                                                                               entry_instruction);
+
+                if (name == m_result_name && !m_result_is_pointer)
+                {
+                    BitCastInst *bit_cast = new BitCastInst(get_element_ptr,
+                                                            value->getType()->getPointerTo(),
+                                                            "",
+                                                            entry_instruction);
+
+                    LoadInst *load = new LoadInst(bit_cast, "", entry_instruction);
+
+                    return load;
+                }
+                else
+                {
+                    BitCastInst *bit_cast = new BitCastInst(get_element_ptr, value->getType(), "", entry_instruction);
+
+                    return bit_cast;
+                }
+            });
+
+            if (Constant *constant = dyn_cast<Constant>(value))
+            {
+                UnfoldConstant(constant, body_result_maker, m_entry_instruction_finder);
+            }
+            else if (Instruction *instruction = dyn_cast<Instruction>(value))
+            {
+                value->replaceAllUsesWith(body_result_maker.GetValue(instruction->getParent()->getParent()));
+            }
+            else
+            {
+                if (log)
+                    log->Printf("Unhandled non-constant type: \"%s\"", PrintValue(value).c_str());
+                return false;
+            }
+
+            if (GlobalVariable *var = dyn_cast<GlobalVariable>(value))
+                var->eraseFromParent();
+        }
+    }
+
+    if (log)
+        log->Printf("Total structure [align %" PRId64 ", size %" PRIu64 "]", (int64_t)alignment, (uint64_t)size);
+
+    return true;
+}
+
+llvm::Constant *
+IRForTarget::BuildRelocation(llvm::Type *type, uint64_t offset)
+{
+    llvm::Constant *offset_int = ConstantInt::get(m_intptr_ty, offset);
+
+    llvm::Constant *offset_array[1];
+
+    offset_array[0] = offset_int;
+
+    llvm::ArrayRef<llvm::Constant *> offsets(offset_array, 1);
+    llvm::Type *char_type = llvm::Type::getInt8Ty(m_module->getContext());
+    llvm::Type *char_pointer_type = char_type->getPointerTo();
+
+    llvm::Constant *reloc_placeholder_bitcast = ConstantExpr::getBitCast(m_reloc_placeholder, char_pointer_type);
+    llvm::Constant *reloc_getelementptr = ConstantExpr::getGetElementPtr(char_type, reloc_placeholder_bitcast, offsets);
+    llvm::Constant *reloc_bitcast = ConstantExpr::getBitCast(reloc_getelementptr, type);
+
+    return reloc_bitcast;
+}
+
+bool
+IRForTarget::CompleteDataAllocation ()
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    if (!m_data_allocator.GetStream().GetSize())
+        return true;
+
+    lldb::addr_t allocation = m_data_allocator.Allocate();
+
+    if (log)
+    {
+        if (allocation)
+            log->Printf("Allocated static data at 0x%llx", (unsigned long long)allocation);
+        else
+            log->Printf("Failed to allocate static data");
+    }
+
+    if (!allocation || allocation == LLDB_INVALID_ADDRESS)
+        return false;
+
+    Constant *relocated_addr = ConstantInt::get(m_intptr_ty, (uint64_t)allocation);
+    Constant *relocated_bitcast = ConstantExpr::getIntToPtr(relocated_addr, llvm::Type::getInt8PtrTy(m_module->getContext()));
+
+    m_reloc_placeholder->replaceAllUsesWith(relocated_bitcast);
+
+    m_reloc_placeholder->eraseFromParent();
+
+    return true;
+}
+
+bool
+IRForTarget::StripAllGVs (Module &llvm_module)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+    std::vector<GlobalVariable *> global_vars;
+    std::set<GlobalVariable *>erased_vars;
+
+    bool erased = true;
+
+    while (erased)
+    {
+        erased = false;
+
+        for (GlobalVariable &global_var : llvm_module.globals())
+        {
+            global_var.removeDeadConstantUsers();
+
+            if (global_var.use_empty())
+            {
+                if (log)
+                    log->Printf("Did remove %s",
+                                PrintValue(&global_var).c_str());
+                global_var.eraseFromParent();
+                erased = true;
+                break;
+            }
+        }
+    }
+
+    for (GlobalVariable &global_var : llvm_module.globals())
+    {
+        GlobalValue::user_iterator ui = global_var.user_begin();
+
+        if (log)
+            log->Printf("Couldn't remove %s because of %s",
+                        PrintValue(&global_var).c_str(),
+                        PrintValue(*ui).c_str());
+    }
+
+    return true;
+}
+
+bool
+IRForTarget::runOnModule (Module &llvm_module)
+{
+    lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+
+    m_module = &llvm_module;
+    m_target_data.reset(new DataLayout(m_module));
+    m_intptr_ty = llvm::Type::getIntNTy(m_module->getContext(), m_target_data->getPointerSizeInBits());
+
+    if (log)
+    {
+        std::string s;
+        raw_string_ostream oss(s);
+
+        m_module->print(oss, NULL);
+
+        oss.flush();
+
+        log->Printf("Module as passed in to IRForTarget: \n\"%s\"", s.c_str());
+    }
+
+    Function* main_function = m_module->getFunction(StringRef(m_func_name.c_str()));
+
+    if (!main_function)
+    {
+        if (log)
+            log->Printf("Couldn't find \"%s()\" in the module", m_func_name.c_str());
+
+        if (m_error_stream)
+            m_error_stream->Printf("Internal error [IRForTarget]: Couldn't find wrapper '%s' in the module", m_func_name.c_str());
+
+        return false;
+    }
+
+    if (!FixFunctionLinkage (*main_function))
+    {
+        if (log)
+            log->Printf("Couldn't fix the linkage for the function");
+
+        return false;
+    }
+
+    llvm::Type *int8_ty = Type::getInt8Ty(m_module->getContext());
+
+    m_reloc_placeholder = new llvm::GlobalVariable((*m_module),
+                                                   int8_ty,
+                                                   false /* IsConstant */,
+                                                   GlobalVariable::InternalLinkage,
+                                                   Constant::getNullValue(int8_ty),
+                                                   "reloc_placeholder",
+                                                   NULL /* InsertBefore */,
+                                                   GlobalVariable::NotThreadLocal /* ThreadLocal */,
+                                                   0 /* AddressSpace */);
+
+    ////////////////////////////////////////////////////////////
+    // Replace $__lldb_expr_result with a persistent variable
+    //
+
+    if (!CreateResultVariable(*main_function))
+    {
+        if (log)
+            log->Printf("CreateResultVariable() failed");
+
+        // CreateResultVariable() reports its own errors, so we don't do so here
+
+        return false;
+    }
+
+    if (log && log->GetVerbose())
+    {
+        std::string s;
+        raw_string_ostream oss(s);
+
+        m_module->print(oss, NULL);
+
+        oss.flush();
+
+        log->Printf("Module after creating the result variable: \n\"%s\"", s.c_str());
+    }
+
+    for (Module::iterator fi = m_module->begin(), fe = m_module->end();
+         fi != fe;
+         ++fi)
+    {
+        llvm::Function *function = &*fi;
+
+        if (function->begin() == function->end())
+            continue;
+
+        Function::iterator bbi;
+
+        for (bbi = function->begin();
+             bbi != function->end();
+             ++bbi)
+        {
+            if (!RemoveGuards(*bbi))
+            {
+                if (log)
+                    log->Printf("RemoveGuards() failed");
+
+                // RemoveGuards() reports its own errors, so we don't do so here
+
+                return false;
+            }
+
+            if (!RewritePersistentAllocs(*bbi))
+            {
+                if (log)
+                    log->Printf("RewritePersistentAllocs() failed");
+
+                // RewritePersistentAllocs() reports its own errors, so we don't do so here
+
+                return false;
+            }
+
+            if (!RemoveCXAAtExit(*bbi))
+            {
+                if (log)
+                    log->Printf("RemoveCXAAtExit() failed");
+
+                // RemoveCXAAtExit() reports its own errors, so we don't do so here
+
+                return false;
+            }
+        }
+    }
+
+    ///////////////////////////////////////////////////////////////////////////////
+    // Fix all Objective-C constant strings to use NSStringWithCString:encoding:
+    //
+
+    if (!RewriteObjCConstStrings())
+    {
+        if (log)
+            log->Printf("RewriteObjCConstStrings() failed");
+
+        // RewriteObjCConstStrings() reports its own errors, so we don't do so here
+
+        return false;
+    }
+
+    ///////////////////////////////
+    // Resolve function pointers
+    //
+
+    if (!ResolveFunctionPointers(llvm_module))
+    {
+        if (log)
+            log->Printf("ResolveFunctionPointers() failed");
+
+        // ResolveFunctionPointers() reports its own errors, so we don't do so here
+
+        return false;
+    }
+
+    for (Module::iterator fi = m_module->begin(), fe = m_module->end();
+         fi != fe;
+         ++fi)
+    {
+        llvm::Function *function = &*fi;
+
+        for (llvm::Function::iterator bbi = function->begin(), bbe = function->end();
+             bbi != bbe;
+             ++bbi)
+        {
+            if (!RewriteObjCSelectors(*bbi))
+            {
+                if (log)
+                    log->Printf("RewriteObjCSelectors() failed");
+
+                // RewriteObjCSelectors() reports its own errors, so we don't do so here
+
+                return false;
+            }
+        }
+    }
+
+    for (Module::iterator fi = m_module->begin(), fe = m_module->end();
+         fi != fe;
+         ++fi)
+    {
+        llvm::Function *function = &*fi;
+
+        for (llvm::Function::iterator bbi = function->begin(), bbe = function->end();
+             bbi != bbe;
+             ++bbi)
+        {
+            if (!ResolveCalls(*bbi))
+            {
+                if (log)
+                    log->Printf("ResolveCalls() failed");
+
+                // ResolveCalls() reports its own errors, so we don't do so here
+
+                return false;
+            }
+
+            if (!ReplaceStaticLiterals(*bbi))
+            {
+                if (log)
+                    log->Printf("ReplaceStaticLiterals() failed");
+
+                return false;
+            }
+        }
+    }
+
+    ////////////////////////////////////////////////////////////////////////
+    // Run function-level passes that only make sense on the main function
+    //
+
+    if (!ResolveExternals(*main_function))
+    {
+        if (log)
+            log->Printf("ResolveExternals() failed");
+
+        // ResolveExternals() reports its own errors, so we don't do so here
+
+        return false;
+    }
+
+    if (!ReplaceVariables(*main_function))
+    {
+        if (log)
+            log->Printf("ReplaceVariables() failed");
+
+        // ReplaceVariables() reports its own errors, so we don't do so here
+
+        return false;
+    }
+
+    if (!ReplaceStrings())
+    {
+        if (log)
+            log->Printf("ReplaceStrings() failed");
+
+        return false;
+    }
+
+    if (!CompleteDataAllocation())
+    {
+        if (log)
+            log->Printf("CompleteDataAllocation() failed");
+
+        return false;
+    }
+
+    if (!StripAllGVs(llvm_module))
+    {
+        if (log)
+            log->Printf("StripAllGVs() failed");
+    }
+
+    if (log && log->GetVerbose())
+    {
+        std::string s;
+        raw_string_ostream oss(s);
+
+        m_module->print(oss, NULL);
+
+        oss.flush();
+
+        log->Printf("Module after preparing for execution: \n\"%s\"", s.c_str());
+    }
+
+    return true;
+}
+
+void
+IRForTarget::assignPassManager (PMStack &pass_mgr_stack, PassManagerType pass_mgr_type)
+{
+}
+
+PassManagerType
+IRForTarget::getPotentialPassManagerType() const
+{
+    return PMT_ModulePassManager;
+}
diff --git a/source/Plugins/ExpressionParser/Clang/IRForTarget.h b/source/Plugins/ExpressionParser/Clang/IRForTarget.h
new file mode 100644
index 0000000000000..fb4abcc103ded
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Clang/IRForTarget.h
@@ -0,0 +1,745 @@
+//===-- IRForTarget.h ---------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_IRForTarget_h_
+#define liblldb_IRForTarget_h_
+
+#include "lldb/lldb-public.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Symbol/TaggedASTType.h"
+#include "llvm/Pass.h"
+
+#include <map>
+#include <functional>
+
+namespace llvm {
+    class BasicBlock;
+    class CallInst;
+    class Constant;
+    class ConstantInt;
+    class Function;
+    class GlobalValue;
+    class GlobalVariable;
+    class Instruction;
+    class IntegerType;
+    class Module;
+    class StoreInst;
+    class DataLayout;
+    class Type;
+    class Value;
+}
+
+namespace lldb_private {
+    class ClangExpressionDeclMap;
+    class IRExecutionUnit;
+    class IRMemoryMap;
+}
+
+//----------------------------------------------------------------------
+/// @class IRForTarget IRForTarget.h "lldb/Expression/IRForTarget.h"
+/// @brief Transforms the IR for a function to run in the target
+///
+/// Once an expression has been parsed and converted to IR, it can run
+/// in two contexts: interpreted by LLDB as a DWARF location expression,
+/// or compiled by the JIT and inserted into the target process for
+/// execution.
+///
+/// IRForTarget makes the second possible, by applying a series of
+/// transformations to the IR which make it relocatable.  These
+/// transformations are discussed in more detail next to their relevant
+/// functions.
+//----------------------------------------------------------------------
+class IRForTarget : public llvm::ModulePass
+{
+public:
+    enum class LookupResult {
+        Success,
+        Fail,
+        Ignore
+    };
+    
+    //------------------------------------------------------------------
+    /// Constructor
+    ///
+    /// @param[in] decl_map
+    ///     The list of externally-referenced variables for the expression,
+    ///     for use in looking up globals and allocating the argument
+    ///     struct.  See the documentation for ClangExpressionDeclMap.
+    ///
+    /// @param[in] resolve_vars
+    ///     True if the external variable references (including persistent
+    ///     variables) should be resolved.  If not, only external functions
+    ///     are resolved.
+    ///
+    /// @param[in] execution_policy
+    ///     Determines whether an IR interpreter can be used to statically
+    ///     evaluate the expression.
+    ///
+    /// @param[in] const_result
+    ///     This variable is populated with the statically-computed result
+    ///     of the function, if it has no side-effects and the result can
+    ///     be computed statically.
+    ///
+    /// @param[in] execution_unit
+    ///     The holder for raw data associated with the expression.
+    ///
+    /// @param[in] error_stream
+    ///     If non-NULL, a stream on which errors can be printed.
+    ///
+    /// @param[in] func_name
+    ///     The name of the function to prepare for execution in the target.
+    //------------------------------------------------------------------
+    IRForTarget(lldb_private::ClangExpressionDeclMap *decl_map,
+                bool resolve_vars,
+                lldb_private::IRExecutionUnit &execution_unit,
+                lldb_private::Stream *error_stream,
+                const char* func_name = "$__lldb_expr");
+    
+    //------------------------------------------------------------------
+    /// Destructor
+    //------------------------------------------------------------------
+    ~IRForTarget() override;
+    
+    //------------------------------------------------------------------
+    /// Run this IR transformer on a single module
+    ///
+    /// Implementation of the llvm::ModulePass::runOnModule() function.
+    ///
+    /// @param[in] llvm_module
+    ///     The module to run on.  This module is searched for the function
+    ///     $__lldb_expr, and that function is passed to the passes one by 
+    ///     one.
+    ///
+    /// @param[in] interpreter_error
+    ///     An error.  If the expression fails to be interpreted, this error
+    ///     is set to a reason why.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    runOnModule(llvm::Module &llvm_module) override;
+    
+    //------------------------------------------------------------------
+    /// Interface stub
+    ///
+    /// Implementation of the llvm::ModulePass::assignPassManager() 
+    /// function.
+    //------------------------------------------------------------------
+    void
+    assignPassManager(llvm::PMStack &pass_mgr_stack,
+		      llvm::PassManagerType pass_mgr_type = llvm::PMT_ModulePassManager) override;
+    
+    //------------------------------------------------------------------
+    /// Returns PMT_ModulePassManager
+    ///
+    /// Implementation of the llvm::ModulePass::getPotentialPassManagerType() 
+    /// function.
+    //------------------------------------------------------------------
+    llvm::PassManagerType
+    getPotentialPassManagerType() const override;
+
+private:
+    //------------------------------------------------------------------
+    /// Ensures that the current function's linkage is set to external.
+    /// Otherwise the JIT may not return an address for it.
+    ///
+    /// @param[in] llvm_function
+    ///     The function whose linkage is to be fixed.
+    ///
+    /// @return
+    ///     True on success; false otherwise.
+    //------------------------------------------------------------------
+    bool 
+    FixFunctionLinkage (llvm::Function &llvm_function);
+    
+    //------------------------------------------------------------------
+    /// A module-level pass to replace all function pointers with their
+    /// integer equivalents.
+    //------------------------------------------------------------------
+    
+    //------------------------------------------------------------------
+    /// The top-level pass implementation
+    ///
+    /// @param[in] llvm_module
+    ///     The module currently being processed.
+    ///
+    /// @param[in] llvm_function
+    ///     The function currently being processed.
+    ///
+    /// @return
+    ///     True on success; false otherwise.
+    //------------------------------------------------------------------
+    bool 
+    HasSideEffects (llvm::Function &llvm_function);
+    
+    //------------------------------------------------------------------
+    /// A function-level pass to check whether the function has side
+    /// effects.
+    //------------------------------------------------------------------
+    
+    //------------------------------------------------------------------
+    /// Get the address of a function, and a location to put the complete
+    /// Value of the function if one is available.
+    ///
+    /// @param[in] function
+    ///     The function to find the location of.
+    ///
+    /// @param[out] ptr
+    ///     The location of the function in the target.
+    ///
+    /// @param[out] name
+    ///     The resolved name of the function (matters for intrinsics).
+    ///
+    /// @param[out] value_ptr
+    ///     A variable to put the function's completed Value* in, or NULL
+    ///     if the Value* shouldn't be stored anywhere.
+    ///
+    /// @return
+    ///     The pointer.
+    //------------------------------------------------------------------ 
+    LookupResult
+    GetFunctionAddress (llvm::Function *function,
+                        uint64_t &ptr,
+                        lldb_private::ConstString &name,
+                        llvm::Constant **&value_ptr);
+    
+    //------------------------------------------------------------------
+    /// Build a function pointer given a type and a raw pointer.
+    ///
+    /// @param[in] type
+    ///     The type of the function pointer to be built.
+    ///
+    /// @param[in] ptr
+    ///     The value of the pointer.
+    ///
+    /// @return
+    ///     The pointer.
+    //------------------------------------------------------------------ 
+    llvm::Constant *
+    BuildFunctionPointer (llvm::Type *type,
+                          uint64_t ptr);
+    
+    void
+    RegisterFunctionMetadata (llvm::LLVMContext &context,
+                              llvm::Value *function_ptr,
+                              const char *name);
+    
+    //------------------------------------------------------------------
+    /// The top-level pass implementation
+    ///
+    /// @param[in] llvm_function
+    ///     The function currently being processed.
+    ///
+    /// @return
+    ///     True if the function has side effects (or if this cannot
+    ///     be determined); false otherwise.
+    //------------------------------------------------------------------
+    bool 
+    ResolveFunctionPointers (llvm::Module &llvm_module);
+    
+    //------------------------------------------------------------------
+    /// A function-level pass to take the generated global value
+    /// $__lldb_expr_result and make it into a persistent variable.
+    /// Also see ASTResultSynthesizer.
+    //------------------------------------------------------------------
+    
+    //------------------------------------------------------------------
+    /// Find the NamedDecl corresponding to a Value.  This interface is
+    /// exposed for the IR interpreter.
+    ///
+    /// @param[in] module
+    ///     The module containing metadata to search
+    ///
+    /// @param[in] global
+    ///     The global entity to search for
+    ///
+    /// @return
+    ///     The corresponding variable declaration
+    //------------------------------------------------------------------
+public:
+    static clang::NamedDecl *
+    DeclForGlobal (const llvm::GlobalValue *global_val, llvm::Module *module);
+private:
+    clang::NamedDecl *
+    DeclForGlobal (llvm::GlobalValue *global);
+    
+    //------------------------------------------------------------------
+    /// Set the constant result variable m_const_result to the provided
+    /// constant, assuming it can be evaluated.  The result variable
+    /// will be reset to NULL later if the expression has side effects.
+    ///
+    /// @param[in] initializer
+    ///     The constant initializer for the variable.
+    ///
+    /// @param[in] name
+    ///     The name of the result variable.
+    ///
+    /// @param[in] type
+    ///     The Clang type of the result variable.
+    //------------------------------------------------------------------    
+    void 
+    MaybeSetConstantResult (llvm::Constant *initializer,
+                            const lldb_private::ConstString &name,
+                            lldb_private::TypeFromParser type);
+    
+    //------------------------------------------------------------------
+    /// If the IR represents a cast of a variable, set m_const_result
+    /// to the result of the cast.  The result variable will be reset to
+    /// NULL latger if the expression has side effects.
+    ///
+    /// @param[in] type
+    ///     The Clang type of the result variable.
+    //------------------------------------------------------------------  
+    void
+    MaybeSetCastResult (lldb_private::TypeFromParser type);
+    
+    //------------------------------------------------------------------
+    /// The top-level pass implementation
+    ///
+    /// @param[in] llvm_function
+    ///     The function currently being processed.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    CreateResultVariable (llvm::Function &llvm_function);
+    
+    //------------------------------------------------------------------
+    /// A module-level pass to find Objective-C constant strings and
+    /// transform them to calls to CFStringCreateWithBytes.
+    //------------------------------------------------------------------
+
+    //------------------------------------------------------------------
+    /// Rewrite a single Objective-C constant string.
+    ///
+    /// @param[in] NSStr
+    ///     The constant NSString to be transformed
+    ///
+    /// @param[in] CStr
+    ///     The constant C string inside the NSString.  This will be
+    ///     passed as the bytes argument to CFStringCreateWithBytes.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    RewriteObjCConstString (llvm::GlobalVariable *NSStr,
+                            llvm::GlobalVariable *CStr);    
+    
+    //------------------------------------------------------------------
+    /// The top-level pass implementation
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    RewriteObjCConstStrings ();
+
+    //------------------------------------------------------------------
+    /// A basic block-level pass to find all Objective-C method calls and
+    /// rewrite them to use sel_registerName instead of statically allocated
+    /// selectors.  The reason is that the selectors are created on the
+    /// assumption that the Objective-C runtime will scan the appropriate
+    /// section and prepare them.  This doesn't happen when code is copied
+    /// into the target, though, and there's no easy way to induce the
+    /// runtime to scan them.  So instead we get our selectors from
+    /// sel_registerName.
+    //------------------------------------------------------------------
+
+    //------------------------------------------------------------------
+    /// Replace a single selector reference
+    ///
+    /// @param[in] selector_load
+    ///     The load of the statically-allocated selector.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    RewriteObjCSelector (llvm::Instruction* selector_load);
+    
+    //------------------------------------------------------------------
+    /// The top-level pass implementation
+    ///
+    /// @param[in] basic_block
+    ///     The basic block currently being processed.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    RewriteObjCSelectors (llvm::BasicBlock &basic_block);
+    
+    //------------------------------------------------------------------
+    /// A basic block-level pass to find all newly-declared persistent
+    /// variables and register them with the ClangExprDeclMap.  This 
+    /// allows them to be materialized and dematerialized like normal
+    /// external variables.  Before transformation, these persistent
+    /// variables look like normal locals, so they have an allocation.
+    /// This pass excises these allocations and makes references look
+    /// like external references where they will be resolved -- like all
+    /// other external references -- by ResolveExternals().
+    //------------------------------------------------------------------
+
+    //------------------------------------------------------------------
+    /// Handle a single allocation of a persistent variable
+    ///
+    /// @param[in] persistent_alloc
+    ///     The allocation of the persistent variable.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    RewritePersistentAlloc (llvm::Instruction *persistent_alloc);
+    
+    //------------------------------------------------------------------
+    /// The top-level pass implementation
+    ///
+    /// @param[in] basic_block
+    ///     The basic block currently being processed.
+    //------------------------------------------------------------------
+    bool 
+    RewritePersistentAllocs (llvm::BasicBlock &basic_block);
+    
+    //------------------------------------------------------------------
+    /// A function-level pass to find all external variables and functions 
+    /// used in the IR.  Each found external variable is added to the 
+    /// struct, and each external function is resolved in place, its call
+    /// replaced with a call to a function pointer whose value is the 
+    /// address of the function in the target process.
+    //------------------------------------------------------------------
+    
+    //------------------------------------------------------------------
+    /// Write an initializer to a memory array of assumed sufficient
+    /// size.
+    ///
+    /// @param[in] data
+    ///     A pointer to the data to write to.
+    ///
+    /// @param[in] initializer
+    ///     The initializer itself.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool
+    MaterializeInitializer (uint8_t *data, llvm::Constant *initializer);
+    
+    //------------------------------------------------------------------
+    /// Move an internal variable into the static allocation section.
+    ///
+    /// @param[in] global_variable
+    ///     The variable.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool
+    MaterializeInternalVariable (llvm::GlobalVariable *global_variable);
+    
+    //------------------------------------------------------------------
+    /// Handle a single externally-defined variable
+    ///
+    /// @param[in] value
+    ///     The variable.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    MaybeHandleVariable (llvm::Value *value);
+    
+    //------------------------------------------------------------------
+    /// Handle a single externally-defined symbol
+    ///
+    /// @param[in] symbol
+    ///     The symbol.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool
+    HandleSymbol (llvm::Value *symbol);
+    
+    //------------------------------------------------------------------
+    /// Handle a single externally-defined Objective-C class
+    ///
+    /// @param[in] classlist_reference
+    ///     The reference, usually "01L_OBJC_CLASSLIST_REFERENCES_$_n"
+    ///     where n (if present) is an index.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool
+    HandleObjCClass(llvm::Value *classlist_reference);
+
+    //------------------------------------------------------------------
+    /// Handle all the arguments to a function call
+    ///
+    /// @param[in] C
+    ///     The call instruction.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    MaybeHandleCallArguments (llvm::CallInst *call_inst);
+    
+    //------------------------------------------------------------------
+    /// Resolve variable references in calls to external functions
+    ///
+    /// @param[in] basic_block
+    ///     The basic block currently being processed.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    ResolveCalls (llvm::BasicBlock &basic_block);
+    
+    //------------------------------------------------------------------
+    /// Remove calls to __cxa_atexit, which should never be generated by
+    /// expressions.
+    ///
+    /// @param[in] call_inst
+    ///     The call instruction.
+    ///
+    /// @return
+    ///     True if the scan was successful; false if some operation
+    ///     failed
+    //------------------------------------------------------------------
+    bool
+    RemoveCXAAtExit (llvm::BasicBlock &basic_block);
+    
+    //------------------------------------------------------------------
+    /// The top-level pass implementation
+    ///
+    /// @param[in] basic_block
+    ///     The function currently being processed.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    ResolveExternals (llvm::Function &llvm_function);
+    
+    //------------------------------------------------------------------
+    /// A basic block-level pass to excise guard variables from the code.
+    /// The result for the function is passed through Clang as a static
+    /// variable.  Static variables normally have guard variables to
+    /// ensure that they are only initialized once.  
+    //------------------------------------------------------------------
+    
+    //------------------------------------------------------------------
+    /// Rewrite a load to a guard variable to return constant 0.
+    ///
+    /// @param[in] guard_load
+    ///     The load instruction to zero out.
+    //------------------------------------------------------------------
+    void
+    TurnGuardLoadIntoZero(llvm::Instruction* guard_load);
+    
+    //------------------------------------------------------------------
+    /// The top-level pass implementation
+    ///
+    /// @param[in] basic_block
+    ///     The basic block currently being processed.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    RemoveGuards (llvm::BasicBlock &basic_block);
+    
+    //------------------------------------------------------------------
+    /// A module-level pass to allocate all string literals in a separate
+    /// allocation and redirect references to them.
+    //------------------------------------------------------------------
+    
+    //------------------------------------------------------------------
+    /// The top-level pass implementation
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    ReplaceStrings ();
+    
+    //------------------------------------------------------------------
+    /// A basic block-level pass to find all literals that will be 
+    /// allocated as statics by the JIT (in contrast to the Strings, 
+    /// which already are statics) and synthesize loads for them.
+    //------------------------------------------------------------------
+    
+    //------------------------------------------------------------------
+    /// The top-level pass implementation
+    ///
+    /// @param[in] basic_block
+    ///     The basic block currently being processed.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    ReplaceStaticLiterals (llvm::BasicBlock &basic_block);
+    
+    //------------------------------------------------------------------
+    /// A function-level pass to make all external variable references
+    /// point at the correct offsets from the void* passed into the
+    /// function.  ClangExpressionDeclMap::DoStructLayout() must be called
+    /// beforehand, so that the offsets are valid.
+    //------------------------------------------------------------------
+    
+    //------------------------------------------------------------------
+    /// The top-level pass implementation
+    ///
+    /// @param[in] llvm_function
+    ///     The function currently being processed.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    ReplaceVariables (llvm::Function &llvm_function);
+    
+    //------------------------------------------------------------------
+    /// A module-level pass to remove all global variables from the
+    /// module since it no longer should export or import any symbols.
+    //------------------------------------------------------------------
+    
+    //------------------------------------------------------------------
+    /// The top-level pass implementation
+    ///
+    /// @param[in] llvm_module
+    ///     The module currently being processed.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool
+    StripAllGVs (llvm::Module &llvm_module);
+    
+    class StaticDataAllocator {
+    public:
+        StaticDataAllocator(lldb_private::IRExecutionUnit &execution_unit);
+        lldb_private::StreamString &GetStream()
+        {
+            return m_stream_string;
+        }
+        lldb::addr_t Allocate();
+
+        lldb::TargetSP
+        GetTarget();
+    private:
+        lldb_private::IRExecutionUnit  &m_execution_unit;
+        lldb_private::StreamString      m_stream_string;
+        lldb::addr_t                    m_allocation;
+    };
+    
+    /// Flags
+    bool                                    m_resolve_vars;             ///< True if external variable references and persistent variable references should be resolved
+    std::string                             m_func_name;                ///< The name of the function to translate
+    lldb_private::ConstString               m_result_name;              ///< The name of the result variable ($0, $1, ...)
+    lldb_private::TypeFromParser            m_result_type;              ///< The type of the result variable.
+    llvm::Module                           *m_module;                   ///< The module being processed, or NULL if that has not been determined yet.
+    std::unique_ptr<llvm::DataLayout>       m_target_data;              ///< The target data for the module being processed, or NULL if there is no module.
+    lldb_private::ClangExpressionDeclMap   *m_decl_map;                 ///< The DeclMap containing the Decls 
+    StaticDataAllocator                     m_data_allocator;           ///< The allocator to use for constant strings
+    llvm::Constant                         *m_CFStringCreateWithBytes;  ///< The address of the function CFStringCreateWithBytes, cast to the appropriate function pointer type
+    llvm::Constant                         *m_sel_registerName;         ///< The address of the function sel_registerName, cast to the appropriate function pointer type
+    llvm::IntegerType                      *m_intptr_ty;                ///< The type of an integer large enough to hold a pointer.
+    lldb_private::Stream                   *m_error_stream;             ///< If non-NULL, the stream on which errors should be printed
+    
+    llvm::StoreInst                        *m_result_store;             ///< If non-NULL, the store instruction that writes to the result variable.  If m_has_side_effects is true, this is NULL.
+    bool                                    m_result_is_pointer;        ///< True if the function's result in the AST is a pointer (see comments in ASTResultSynthesizer::SynthesizeBodyResult)
+    
+    llvm::GlobalVariable                   *m_reloc_placeholder;        ///< A placeholder that will be replaced by a pointer to the final location of the static allocation.
+    
+    //------------------------------------------------------------------
+    /// UnfoldConstant operates on a constant [Old] which has just been 
+    /// replaced with a value [New].  We assume that new_value has 
+    /// been properly placed early in the function, in front of the 
+    /// first instruction in the entry basic block 
+    /// [FirstEntryInstruction].  
+    ///
+    /// UnfoldConstant reads through the uses of Old and replaces Old 
+    /// in those uses with New.  Where those uses are constants, the 
+    /// function generates new instructions to compute the result of the 
+    /// new, non-constant expression and places them before 
+    /// FirstEntryInstruction.  These instructions replace the constant
+    /// uses, so UnfoldConstant calls itself recursively for those.
+    ///
+    /// @param[in] llvm_function
+    ///     The function currently being processed.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    
+    class FunctionValueCache {
+    public:
+        typedef std::function <llvm::Value *(llvm::Function *)> Maker;
+
+        FunctionValueCache (Maker const &maker);
+        ~FunctionValueCache ();
+        llvm::Value *GetValue (llvm::Function *function);
+    private:
+        Maker const m_maker;
+        typedef std::map<llvm::Function *, llvm::Value *> FunctionValueMap;
+        FunctionValueMap m_values;
+    };
+    
+    FunctionValueCache m_entry_instruction_finder;
+    
+    static bool
+    UnfoldConstant (llvm::Constant *old_constant, 
+                    FunctionValueCache &value_maker,
+                    FunctionValueCache &entry_instruction_finder);
+    
+    //------------------------------------------------------------------
+    /// Construct a reference to m_reloc_placeholder with a given type
+    /// and offset.  This typically happens after inserting data into
+    /// m_data_allocator.
+    ///
+    /// @param[in] type
+    ///     The type of the value being loaded.
+    ///
+    /// @param[in] offset
+    ///     The offset of the value from the base of m_data_allocator.
+    ///
+    /// @return
+    ///     The Constant for the reference, usually a ConstantExpr.
+    //------------------------------------------------------------------
+    llvm::Constant *
+    BuildRelocation(llvm::Type *type, 
+                    uint64_t offset);
+    
+    //------------------------------------------------------------------
+    /// Commit the allocation in m_data_allocator and use its final
+    /// location to replace m_reloc_placeholder.
+    ///
+    /// @param[in] module
+    ///     The module that m_data_allocator resides in
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool 
+    CompleteDataAllocation ();
+
+};
+
+#endif // liblldb_IRForTarget_h_
diff --git a/source/Plugins/ExpressionParser/Go/GoAST.h b/source/Plugins/ExpressionParser/Go/GoAST.h
new file mode 100644
index 0000000000000..6d51240eab5cc
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/GoAST.h
@@ -0,0 +1,3225 @@
+//===-- GoAST.h -------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// DO NOT EDIT.
+// Generated by gen_go_ast.py
+
+#ifndef liblldb_GoAST_h
+#define liblldb_GoAST_h
+
+#include "lldb/lldb-forward.h"
+#include "lldb/lldb-private.h"
+#include "llvm/Support/Casting.h"
+#include "Plugins/ExpressionParser/Go/GoLexer.h"
+
+namespace lldb_private
+{
+
+class GoASTNode
+{
+  public:
+    typedef GoLexer::TokenType TokenType;
+    typedef GoLexer::Token Token;
+    enum ChanDir
+    {
+        eChanBidir,
+        eChanSend,
+        eChanRecv,
+    };
+    enum NodeKind
+    {
+        eBadDecl,
+        eFuncDecl,
+        eGenDecl,
+        eArrayType,
+        eBadExpr,
+        eBasicLit,
+        eBinaryExpr,
+        eIdent,
+        eCallExpr,
+        eChanType,
+        eCompositeLit,
+        eEllipsis,
+        eFuncType,
+        eFuncLit,
+        eIndexExpr,
+        eInterfaceType,
+        eKeyValueExpr,
+        eMapType,
+        eParenExpr,
+        eSelectorExpr,
+        eSliceExpr,
+        eStarExpr,
+        eStructType,
+        eTypeAssertExpr,
+        eUnaryExpr,
+        eImportSpec,
+        eTypeSpec,
+        eValueSpec,
+        eAssignStmt,
+        eBadStmt,
+        eBlockStmt,
+        eBranchStmt,
+        eCaseClause,
+        eCommClause,
+        eDeclStmt,
+        eDeferStmt,
+        eEmptyStmt,
+        eExprStmt,
+        eForStmt,
+        eGoStmt,
+        eIfStmt,
+        eIncDecStmt,
+        eLabeledStmt,
+        eRangeStmt,
+        eReturnStmt,
+        eSelectStmt,
+        eSendStmt,
+        eSwitchStmt,
+        eTypeSwitchStmt,
+        eField,
+        eFieldList,
+    };
+
+    virtual ~GoASTNode() = default;
+
+    NodeKind
+    GetKind() const
+    {
+        return m_kind;
+    }
+
+    virtual const char *GetKindName() const = 0;
+
+    template <typename V> void WalkChildren(V &v);
+
+  protected:
+    explicit GoASTNode(NodeKind kind) : m_kind(kind) { }
+
+  private:
+    const NodeKind m_kind;
+    
+    GoASTNode(const GoASTNode &) = delete;
+    const GoASTNode &operator=(const GoASTNode &) = delete;
+};
+
+
+class GoASTDecl : public GoASTNode
+{
+  public:
+    template <typename R, typename V> R Visit(V *v) const;
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() >= eBadDecl && n->GetKind() <= eGenDecl;
+    }
+
+  protected:
+    explicit GoASTDecl(NodeKind kind) : GoASTNode(kind) { }
+  private:
+
+    GoASTDecl(const GoASTDecl &) = delete;
+    const GoASTDecl &operator=(const GoASTDecl &) = delete;
+};
+
+class GoASTExpr : public GoASTNode
+{
+  public:
+    template <typename R, typename V> R Visit(V *v) const;
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() >= eArrayType && n->GetKind() <= eUnaryExpr;
+    }
+
+  protected:
+    explicit GoASTExpr(NodeKind kind) : GoASTNode(kind) { }
+  private:
+
+    GoASTExpr(const GoASTExpr &) = delete;
+    const GoASTExpr &operator=(const GoASTExpr &) = delete;
+};
+
+class GoASTSpec : public GoASTNode
+{
+  public:
+    template <typename R, typename V> R Visit(V *v) const;
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() >= eImportSpec && n->GetKind() <= eValueSpec;
+    }
+
+  protected:
+    explicit GoASTSpec(NodeKind kind) : GoASTNode(kind) { }
+  private:
+
+    GoASTSpec(const GoASTSpec &) = delete;
+    const GoASTSpec &operator=(const GoASTSpec &) = delete;
+};
+
+class GoASTStmt : public GoASTNode
+{
+  public:
+    template <typename R, typename V> R Visit(V *v) const;
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() >= eAssignStmt && n->GetKind() <= eTypeSwitchStmt;
+    }
+
+  protected:
+    explicit GoASTStmt(NodeKind kind) : GoASTNode(kind) { }
+  private:
+
+    GoASTStmt(const GoASTStmt &) = delete;
+    const GoASTStmt &operator=(const GoASTStmt &) = delete;
+};
+
+
+class GoASTArrayType : public GoASTExpr
+{
+  public:
+    GoASTArrayType(GoASTExpr *len, GoASTExpr *elt) : GoASTExpr(eArrayType), m_len_up(len), m_elt_up(elt) {}
+    ~GoASTArrayType() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "ArrayType";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eArrayType;
+    }
+    
+    const GoASTExpr *
+    GetLen() const
+    {
+        return m_len_up.get();
+    }
+    void
+    SetLen(GoASTExpr *len)
+    {
+        m_len_up.reset(len);
+    }
+
+    const GoASTExpr *
+    GetElt() const
+    {
+        return m_elt_up.get();
+    }
+    void
+    SetElt(GoASTExpr *elt)
+    {
+        m_elt_up.reset(elt);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_len_up;
+    std::unique_ptr<GoASTExpr> m_elt_up;
+
+    GoASTArrayType(const GoASTArrayType &) = delete;
+    const GoASTArrayType &operator=(const GoASTArrayType &) = delete;
+};
+
+class GoASTAssignStmt : public GoASTStmt
+{
+  public:
+    explicit GoASTAssignStmt(bool define) : GoASTStmt(eAssignStmt), m_define(define) {}
+    ~GoASTAssignStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "AssignStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eAssignStmt;
+    }
+    
+    size_t
+    NumLhs() const
+    {
+        return m_lhs.size();
+    }
+    const GoASTExpr *
+    GetLhs(int i) const
+    {
+        return m_lhs[i].get();
+    }
+    void
+    AddLhs(GoASTExpr *lhs)
+    {
+        m_lhs.push_back(std::unique_ptr<GoASTExpr>(lhs));
+    }
+
+    size_t
+    NumRhs() const
+    {
+        return m_rhs.size();
+    }
+    const GoASTExpr *
+    GetRhs(int i) const
+    {
+        return m_rhs[i].get();
+    }
+    void
+    AddRhs(GoASTExpr *rhs)
+    {
+        m_rhs.push_back(std::unique_ptr<GoASTExpr>(rhs));
+    }
+
+    bool 
+    GetDefine() const
+    {
+        return m_define;
+    }
+    void
+    SetDefine(bool define)
+    {
+        m_define = define;
+    }
+
+  private:
+    friend class GoASTNode;
+    std::vector<std::unique_ptr<GoASTExpr> > m_lhs;
+    std::vector<std::unique_ptr<GoASTExpr> > m_rhs;
+    bool m_define;
+
+    GoASTAssignStmt(const GoASTAssignStmt &) = delete;
+    const GoASTAssignStmt &operator=(const GoASTAssignStmt &) = delete;
+};
+
+class GoASTBadDecl : public GoASTDecl
+{
+  public:
+    GoASTBadDecl() : GoASTDecl(eBadDecl) {}
+    ~GoASTBadDecl() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "BadDecl";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eBadDecl;
+    }
+    
+    GoASTBadDecl(const GoASTBadDecl &) = delete;
+    const GoASTBadDecl &operator=(const GoASTBadDecl &) = delete;
+};
+
+class GoASTBadExpr : public GoASTExpr
+{
+  public:
+    GoASTBadExpr() : GoASTExpr(eBadExpr) {}
+    ~GoASTBadExpr() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "BadExpr";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eBadExpr;
+    }
+    
+    GoASTBadExpr(const GoASTBadExpr &) = delete;
+    const GoASTBadExpr &operator=(const GoASTBadExpr &) = delete;
+};
+
+class GoASTBadStmt : public GoASTStmt
+{
+  public:
+    GoASTBadStmt() : GoASTStmt(eBadStmt) {}
+    ~GoASTBadStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "BadStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eBadStmt;
+    }
+    
+    GoASTBadStmt(const GoASTBadStmt &) = delete;
+    const GoASTBadStmt &operator=(const GoASTBadStmt &) = delete;
+};
+
+class GoASTBasicLit : public GoASTExpr
+{
+  public:
+    explicit GoASTBasicLit(Token value) : GoASTExpr(eBasicLit), m_value(value) {}
+    ~GoASTBasicLit() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "BasicLit";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eBasicLit;
+    }
+    
+    Token 
+    GetValue() const
+    {
+        return m_value;
+    }
+    void
+    SetValue(Token value)
+    {
+        m_value = value;
+    }
+
+  private:
+    friend class GoASTNode;
+    Token m_value;
+
+    GoASTBasicLit(const GoASTBasicLit &) = delete;
+    const GoASTBasicLit &operator=(const GoASTBasicLit &) = delete;
+};
+
+class GoASTBinaryExpr : public GoASTExpr
+{
+  public:
+    GoASTBinaryExpr(GoASTExpr *x, GoASTExpr *y, TokenType op) : GoASTExpr(eBinaryExpr), m_x_up(x), m_y_up(y), m_op(op) {}
+    ~GoASTBinaryExpr() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "BinaryExpr";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eBinaryExpr;
+    }
+    
+    const GoASTExpr *
+    GetX() const
+    {
+        return m_x_up.get();
+    }
+    void
+    SetX(GoASTExpr *x)
+    {
+        m_x_up.reset(x);
+    }
+
+    const GoASTExpr *
+    GetY() const
+    {
+        return m_y_up.get();
+    }
+    void
+    SetY(GoASTExpr *y)
+    {
+        m_y_up.reset(y);
+    }
+
+    TokenType 
+    GetOp() const
+    {
+        return m_op;
+    }
+    void
+    SetOp(TokenType op)
+    {
+        m_op = op;
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_x_up;
+    std::unique_ptr<GoASTExpr> m_y_up;
+    TokenType m_op;
+
+    GoASTBinaryExpr(const GoASTBinaryExpr &) = delete;
+    const GoASTBinaryExpr &operator=(const GoASTBinaryExpr &) = delete;
+};
+
+class GoASTBlockStmt : public GoASTStmt
+{
+  public:
+    GoASTBlockStmt() : GoASTStmt(eBlockStmt) {}
+    ~GoASTBlockStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "BlockStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eBlockStmt;
+    }
+    
+    size_t
+    NumList() const
+    {
+        return m_list.size();
+    }
+    const GoASTStmt *
+    GetList(int i) const
+    {
+        return m_list[i].get();
+    }
+    void
+    AddList(GoASTStmt *list)
+    {
+        m_list.push_back(std::unique_ptr<GoASTStmt>(list));
+    }
+
+  private:
+    friend class GoASTNode;
+    std::vector<std::unique_ptr<GoASTStmt> > m_list;
+
+    GoASTBlockStmt(const GoASTBlockStmt &) = delete;
+    const GoASTBlockStmt &operator=(const GoASTBlockStmt &) = delete;
+};
+
+class GoASTIdent : public GoASTExpr
+{
+  public:
+    explicit GoASTIdent(Token name) : GoASTExpr(eIdent), m_name(name) {}
+    ~GoASTIdent() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "Ident";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eIdent;
+    }
+    
+    Token 
+    GetName() const
+    {
+        return m_name;
+    }
+    void
+    SetName(Token name)
+    {
+        m_name = name;
+    }
+
+  private:
+    friend class GoASTNode;
+    Token m_name;
+
+    GoASTIdent(const GoASTIdent &) = delete;
+    const GoASTIdent &operator=(const GoASTIdent &) = delete;
+};
+
+class GoASTBranchStmt : public GoASTStmt
+{
+  public:
+    GoASTBranchStmt(GoASTIdent *label, TokenType tok) : GoASTStmt(eBranchStmt), m_label_up(label), m_tok(tok) {}
+    ~GoASTBranchStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "BranchStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eBranchStmt;
+    }
+    
+    const GoASTIdent *
+    GetLabel() const
+    {
+        return m_label_up.get();
+    }
+    void
+    SetLabel(GoASTIdent *label)
+    {
+        m_label_up.reset(label);
+    }
+
+    TokenType 
+    GetTok() const
+    {
+        return m_tok;
+    }
+    void
+    SetTok(TokenType tok)
+    {
+        m_tok = tok;
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTIdent> m_label_up;
+    TokenType m_tok;
+
+    GoASTBranchStmt(const GoASTBranchStmt &) = delete;
+    const GoASTBranchStmt &operator=(const GoASTBranchStmt &) = delete;
+};
+
+class GoASTCallExpr : public GoASTExpr
+{
+  public:
+    explicit GoASTCallExpr(bool ellipsis) : GoASTExpr(eCallExpr), m_ellipsis(ellipsis) {}
+    ~GoASTCallExpr() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "CallExpr";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eCallExpr;
+    }
+    
+    const GoASTExpr *
+    GetFun() const
+    {
+        return m_fun_up.get();
+    }
+    void
+    SetFun(GoASTExpr *fun)
+    {
+        m_fun_up.reset(fun);
+    }
+
+    size_t
+    NumArgs() const
+    {
+        return m_args.size();
+    }
+    const GoASTExpr *
+    GetArgs(int i) const
+    {
+        return m_args[i].get();
+    }
+    void
+    AddArgs(GoASTExpr *args)
+    {
+        m_args.push_back(std::unique_ptr<GoASTExpr>(args));
+    }
+
+    bool 
+    GetEllipsis() const
+    {
+        return m_ellipsis;
+    }
+    void
+    SetEllipsis(bool ellipsis)
+    {
+        m_ellipsis = ellipsis;
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_fun_up;
+    std::vector<std::unique_ptr<GoASTExpr> > m_args;
+    bool m_ellipsis;
+
+    GoASTCallExpr(const GoASTCallExpr &) = delete;
+    const GoASTCallExpr &operator=(const GoASTCallExpr &) = delete;
+};
+
+class GoASTCaseClause : public GoASTStmt
+{
+  public:
+    GoASTCaseClause() : GoASTStmt(eCaseClause) {}
+    ~GoASTCaseClause() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "CaseClause";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eCaseClause;
+    }
+    
+    size_t
+    NumList() const
+    {
+        return m_list.size();
+    }
+    const GoASTExpr *
+    GetList(int i) const
+    {
+        return m_list[i].get();
+    }
+    void
+    AddList(GoASTExpr *list)
+    {
+        m_list.push_back(std::unique_ptr<GoASTExpr>(list));
+    }
+
+    size_t
+    NumBody() const
+    {
+        return m_body.size();
+    }
+    const GoASTStmt *
+    GetBody(int i) const
+    {
+        return m_body[i].get();
+    }
+    void
+    AddBody(GoASTStmt *body)
+    {
+        m_body.push_back(std::unique_ptr<GoASTStmt>(body));
+    }
+
+  private:
+    friend class GoASTNode;
+    std::vector<std::unique_ptr<GoASTExpr> > m_list;
+    std::vector<std::unique_ptr<GoASTStmt> > m_body;
+
+    GoASTCaseClause(const GoASTCaseClause &) = delete;
+    const GoASTCaseClause &operator=(const GoASTCaseClause &) = delete;
+};
+
+class GoASTChanType : public GoASTExpr
+{
+  public:
+    GoASTChanType(ChanDir dir, GoASTExpr *value) : GoASTExpr(eChanType), m_dir(dir), m_value_up(value) {}
+    ~GoASTChanType() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "ChanType";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eChanType;
+    }
+    
+    ChanDir 
+    GetDir() const
+    {
+        return m_dir;
+    }
+    void
+    SetDir(ChanDir dir)
+    {
+        m_dir = dir;
+    }
+
+    const GoASTExpr *
+    GetValue() const
+    {
+        return m_value_up.get();
+    }
+    void
+    SetValue(GoASTExpr *value)
+    {
+        m_value_up.reset(value);
+    }
+
+  private:
+    friend class GoASTNode;
+    ChanDir m_dir;
+    std::unique_ptr<GoASTExpr> m_value_up;
+
+    GoASTChanType(const GoASTChanType &) = delete;
+    const GoASTChanType &operator=(const GoASTChanType &) = delete;
+};
+
+class GoASTCommClause : public GoASTStmt
+{
+  public:
+    GoASTCommClause() : GoASTStmt(eCommClause) {}
+    ~GoASTCommClause() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "CommClause";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eCommClause;
+    }
+    
+    const GoASTStmt *
+    GetComm() const
+    {
+        return m_comm_up.get();
+    }
+    void
+    SetComm(GoASTStmt *comm)
+    {
+        m_comm_up.reset(comm);
+    }
+
+    size_t
+    NumBody() const
+    {
+        return m_body.size();
+    }
+    const GoASTStmt *
+    GetBody(int i) const
+    {
+        return m_body[i].get();
+    }
+    void
+    AddBody(GoASTStmt *body)
+    {
+        m_body.push_back(std::unique_ptr<GoASTStmt>(body));
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTStmt> m_comm_up;
+    std::vector<std::unique_ptr<GoASTStmt> > m_body;
+
+    GoASTCommClause(const GoASTCommClause &) = delete;
+    const GoASTCommClause &operator=(const GoASTCommClause &) = delete;
+};
+
+class GoASTCompositeLit : public GoASTExpr
+{
+  public:
+    GoASTCompositeLit() : GoASTExpr(eCompositeLit) {}
+    ~GoASTCompositeLit() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "CompositeLit";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eCompositeLit;
+    }
+    
+    const GoASTExpr *
+    GetType() const
+    {
+        return m_type_up.get();
+    }
+    void
+    SetType(GoASTExpr *type)
+    {
+        m_type_up.reset(type);
+    }
+
+    size_t
+    NumElts() const
+    {
+        return m_elts.size();
+    }
+    const GoASTExpr *
+    GetElts(int i) const
+    {
+        return m_elts[i].get();
+    }
+    void
+    AddElts(GoASTExpr *elts)
+    {
+        m_elts.push_back(std::unique_ptr<GoASTExpr>(elts));
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_type_up;
+    std::vector<std::unique_ptr<GoASTExpr> > m_elts;
+
+    GoASTCompositeLit(const GoASTCompositeLit &) = delete;
+    const GoASTCompositeLit &operator=(const GoASTCompositeLit &) = delete;
+};
+
+class GoASTDeclStmt : public GoASTStmt
+{
+  public:
+    explicit GoASTDeclStmt(GoASTDecl *decl) : GoASTStmt(eDeclStmt), m_decl_up(decl) {}
+    ~GoASTDeclStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "DeclStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eDeclStmt;
+    }
+    
+    const GoASTDecl *
+    GetDecl() const
+    {
+        return m_decl_up.get();
+    }
+    void
+    SetDecl(GoASTDecl *decl)
+    {
+        m_decl_up.reset(decl);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTDecl> m_decl_up;
+
+    GoASTDeclStmt(const GoASTDeclStmt &) = delete;
+    const GoASTDeclStmt &operator=(const GoASTDeclStmt &) = delete;
+};
+
+class GoASTDeferStmt : public GoASTStmt
+{
+  public:
+    explicit GoASTDeferStmt(GoASTCallExpr *call) : GoASTStmt(eDeferStmt), m_call_up(call) {}
+    ~GoASTDeferStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "DeferStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eDeferStmt;
+    }
+    
+    const GoASTCallExpr *
+    GetCall() const
+    {
+        return m_call_up.get();
+    }
+    void
+    SetCall(GoASTCallExpr *call)
+    {
+        m_call_up.reset(call);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTCallExpr> m_call_up;
+
+    GoASTDeferStmt(const GoASTDeferStmt &) = delete;
+    const GoASTDeferStmt &operator=(const GoASTDeferStmt &) = delete;
+};
+
+class GoASTEllipsis : public GoASTExpr
+{
+  public:
+    explicit GoASTEllipsis(GoASTExpr *elt) : GoASTExpr(eEllipsis), m_elt_up(elt) {}
+    ~GoASTEllipsis() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "Ellipsis";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eEllipsis;
+    }
+    
+    const GoASTExpr *
+    GetElt() const
+    {
+        return m_elt_up.get();
+    }
+    void
+    SetElt(GoASTExpr *elt)
+    {
+        m_elt_up.reset(elt);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_elt_up;
+
+    GoASTEllipsis(const GoASTEllipsis &) = delete;
+    const GoASTEllipsis &operator=(const GoASTEllipsis &) = delete;
+};
+
+class GoASTEmptyStmt : public GoASTStmt
+{
+  public:
+    GoASTEmptyStmt() : GoASTStmt(eEmptyStmt) {}
+    ~GoASTEmptyStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "EmptyStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eEmptyStmt;
+    }
+    
+    GoASTEmptyStmt(const GoASTEmptyStmt &) = delete;
+    const GoASTEmptyStmt &operator=(const GoASTEmptyStmt &) = delete;
+};
+
+class GoASTExprStmt : public GoASTStmt
+{
+  public:
+    explicit GoASTExprStmt(GoASTExpr *x) : GoASTStmt(eExprStmt), m_x_up(x) {}
+    ~GoASTExprStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "ExprStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eExprStmt;
+    }
+    
+    const GoASTExpr *
+    GetX() const
+    {
+        return m_x_up.get();
+    }
+    void
+    SetX(GoASTExpr *x)
+    {
+        m_x_up.reset(x);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_x_up;
+
+    GoASTExprStmt(const GoASTExprStmt &) = delete;
+    const GoASTExprStmt &operator=(const GoASTExprStmt &) = delete;
+};
+
+class GoASTField : public GoASTNode
+{
+  public:
+    GoASTField() : GoASTNode(eField) {}
+    ~GoASTField() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "Field";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eField;
+    }
+    
+    size_t
+    NumNames() const
+    {
+        return m_names.size();
+    }
+    const GoASTIdent *
+    GetNames(int i) const
+    {
+        return m_names[i].get();
+    }
+    void
+    AddNames(GoASTIdent *names)
+    {
+        m_names.push_back(std::unique_ptr<GoASTIdent>(names));
+    }
+
+    const GoASTExpr *
+    GetType() const
+    {
+        return m_type_up.get();
+    }
+    void
+    SetType(GoASTExpr *type)
+    {
+        m_type_up.reset(type);
+    }
+
+    const GoASTBasicLit *
+    GetTag() const
+    {
+        return m_tag_up.get();
+    }
+    void
+    SetTag(GoASTBasicLit *tag)
+    {
+        m_tag_up.reset(tag);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::vector<std::unique_ptr<GoASTIdent> > m_names;
+    std::unique_ptr<GoASTExpr> m_type_up;
+    std::unique_ptr<GoASTBasicLit> m_tag_up;
+
+    GoASTField(const GoASTField &) = delete;
+    const GoASTField &operator=(const GoASTField &) = delete;
+};
+
+class GoASTFieldList : public GoASTNode
+{
+  public:
+    GoASTFieldList() : GoASTNode(eFieldList) {}
+    ~GoASTFieldList() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "FieldList";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eFieldList;
+    }
+    
+    size_t
+    NumList() const
+    {
+        return m_list.size();
+    }
+    const GoASTField *
+    GetList(int i) const
+    {
+        return m_list[i].get();
+    }
+    void
+    AddList(GoASTField *list)
+    {
+        m_list.push_back(std::unique_ptr<GoASTField>(list));
+    }
+
+  private:
+    friend class GoASTNode;
+    std::vector<std::unique_ptr<GoASTField> > m_list;
+
+    GoASTFieldList(const GoASTFieldList &) = delete;
+    const GoASTFieldList &operator=(const GoASTFieldList &) = delete;
+};
+
+class GoASTForStmt : public GoASTStmt
+{
+  public:
+    GoASTForStmt(GoASTStmt *init, GoASTExpr *cond, GoASTStmt *post, GoASTBlockStmt *body) : GoASTStmt(eForStmt), m_init_up(init), m_cond_up(cond), m_post_up(post), m_body_up(body) {}
+    ~GoASTForStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "ForStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eForStmt;
+    }
+    
+    const GoASTStmt *
+    GetInit() const
+    {
+        return m_init_up.get();
+    }
+    void
+    SetInit(GoASTStmt *init)
+    {
+        m_init_up.reset(init);
+    }
+
+    const GoASTExpr *
+    GetCond() const
+    {
+        return m_cond_up.get();
+    }
+    void
+    SetCond(GoASTExpr *cond)
+    {
+        m_cond_up.reset(cond);
+    }
+
+    const GoASTStmt *
+    GetPost() const
+    {
+        return m_post_up.get();
+    }
+    void
+    SetPost(GoASTStmt *post)
+    {
+        m_post_up.reset(post);
+    }
+
+    const GoASTBlockStmt *
+    GetBody() const
+    {
+        return m_body_up.get();
+    }
+    void
+    SetBody(GoASTBlockStmt *body)
+    {
+        m_body_up.reset(body);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTStmt> m_init_up;
+    std::unique_ptr<GoASTExpr> m_cond_up;
+    std::unique_ptr<GoASTStmt> m_post_up;
+    std::unique_ptr<GoASTBlockStmt> m_body_up;
+
+    GoASTForStmt(const GoASTForStmt &) = delete;
+    const GoASTForStmt &operator=(const GoASTForStmt &) = delete;
+};
+
+class GoASTFuncType : public GoASTExpr
+{
+  public:
+    GoASTFuncType(GoASTFieldList *params, GoASTFieldList *results) : GoASTExpr(eFuncType), m_params_up(params), m_results_up(results) {}
+    ~GoASTFuncType() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "FuncType";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eFuncType;
+    }
+    
+    const GoASTFieldList *
+    GetParams() const
+    {
+        return m_params_up.get();
+    }
+    void
+    SetParams(GoASTFieldList *params)
+    {
+        m_params_up.reset(params);
+    }
+
+    const GoASTFieldList *
+    GetResults() const
+    {
+        return m_results_up.get();
+    }
+    void
+    SetResults(GoASTFieldList *results)
+    {
+        m_results_up.reset(results);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTFieldList> m_params_up;
+    std::unique_ptr<GoASTFieldList> m_results_up;
+
+    GoASTFuncType(const GoASTFuncType &) = delete;
+    const GoASTFuncType &operator=(const GoASTFuncType &) = delete;
+};
+
+class GoASTFuncDecl : public GoASTDecl
+{
+  public:
+    GoASTFuncDecl(GoASTFieldList *recv, GoASTIdent *name, GoASTFuncType *type, GoASTBlockStmt *body) : GoASTDecl(eFuncDecl), m_recv_up(recv), m_name_up(name), m_type_up(type), m_body_up(body) {}
+    ~GoASTFuncDecl() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "FuncDecl";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eFuncDecl;
+    }
+    
+    const GoASTFieldList *
+    GetRecv() const
+    {
+        return m_recv_up.get();
+    }
+    void
+    SetRecv(GoASTFieldList *recv)
+    {
+        m_recv_up.reset(recv);
+    }
+
+    const GoASTIdent *
+    GetName() const
+    {
+        return m_name_up.get();
+    }
+    void
+    SetName(GoASTIdent *name)
+    {
+        m_name_up.reset(name);
+    }
+
+    const GoASTFuncType *
+    GetType() const
+    {
+        return m_type_up.get();
+    }
+    void
+    SetType(GoASTFuncType *type)
+    {
+        m_type_up.reset(type);
+    }
+
+    const GoASTBlockStmt *
+    GetBody() const
+    {
+        return m_body_up.get();
+    }
+    void
+    SetBody(GoASTBlockStmt *body)
+    {
+        m_body_up.reset(body);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTFieldList> m_recv_up;
+    std::unique_ptr<GoASTIdent> m_name_up;
+    std::unique_ptr<GoASTFuncType> m_type_up;
+    std::unique_ptr<GoASTBlockStmt> m_body_up;
+
+    GoASTFuncDecl(const GoASTFuncDecl &) = delete;
+    const GoASTFuncDecl &operator=(const GoASTFuncDecl &) = delete;
+};
+
+class GoASTFuncLit : public GoASTExpr
+{
+  public:
+    GoASTFuncLit(GoASTFuncType *type, GoASTBlockStmt *body) : GoASTExpr(eFuncLit), m_type_up(type), m_body_up(body) {}
+    ~GoASTFuncLit() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "FuncLit";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eFuncLit;
+    }
+    
+    const GoASTFuncType *
+    GetType() const
+    {
+        return m_type_up.get();
+    }
+    void
+    SetType(GoASTFuncType *type)
+    {
+        m_type_up.reset(type);
+    }
+
+    const GoASTBlockStmt *
+    GetBody() const
+    {
+        return m_body_up.get();
+    }
+    void
+    SetBody(GoASTBlockStmt *body)
+    {
+        m_body_up.reset(body);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTFuncType> m_type_up;
+    std::unique_ptr<GoASTBlockStmt> m_body_up;
+
+    GoASTFuncLit(const GoASTFuncLit &) = delete;
+    const GoASTFuncLit &operator=(const GoASTFuncLit &) = delete;
+};
+
+class GoASTGenDecl : public GoASTDecl
+{
+  public:
+    explicit GoASTGenDecl(TokenType tok) : GoASTDecl(eGenDecl), m_tok(tok) {}
+    ~GoASTGenDecl() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "GenDecl";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eGenDecl;
+    }
+    
+    TokenType 
+    GetTok() const
+    {
+        return m_tok;
+    }
+    void
+    SetTok(TokenType tok)
+    {
+        m_tok = tok;
+    }
+
+    size_t
+    NumSpecs() const
+    {
+        return m_specs.size();
+    }
+    const GoASTSpec *
+    GetSpecs(int i) const
+    {
+        return m_specs[i].get();
+    }
+    void
+    AddSpecs(GoASTSpec *specs)
+    {
+        m_specs.push_back(std::unique_ptr<GoASTSpec>(specs));
+    }
+
+  private:
+    friend class GoASTNode;
+    TokenType m_tok;
+    std::vector<std::unique_ptr<GoASTSpec> > m_specs;
+
+    GoASTGenDecl(const GoASTGenDecl &) = delete;
+    const GoASTGenDecl &operator=(const GoASTGenDecl &) = delete;
+};
+
+class GoASTGoStmt : public GoASTStmt
+{
+  public:
+    explicit GoASTGoStmt(GoASTCallExpr *call) : GoASTStmt(eGoStmt), m_call_up(call) {}
+    ~GoASTGoStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "GoStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eGoStmt;
+    }
+    
+    const GoASTCallExpr *
+    GetCall() const
+    {
+        return m_call_up.get();
+    }
+    void
+    SetCall(GoASTCallExpr *call)
+    {
+        m_call_up.reset(call);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTCallExpr> m_call_up;
+
+    GoASTGoStmt(const GoASTGoStmt &) = delete;
+    const GoASTGoStmt &operator=(const GoASTGoStmt &) = delete;
+};
+
+class GoASTIfStmt : public GoASTStmt
+{
+  public:
+    GoASTIfStmt(GoASTStmt *init, GoASTExpr *cond, GoASTBlockStmt *body, GoASTStmt *els) : GoASTStmt(eIfStmt), m_init_up(init), m_cond_up(cond), m_body_up(body), m_els_up(els) {}
+    ~GoASTIfStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "IfStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eIfStmt;
+    }
+    
+    const GoASTStmt *
+    GetInit() const
+    {
+        return m_init_up.get();
+    }
+    void
+    SetInit(GoASTStmt *init)
+    {
+        m_init_up.reset(init);
+    }
+
+    const GoASTExpr *
+    GetCond() const
+    {
+        return m_cond_up.get();
+    }
+    void
+    SetCond(GoASTExpr *cond)
+    {
+        m_cond_up.reset(cond);
+    }
+
+    const GoASTBlockStmt *
+    GetBody() const
+    {
+        return m_body_up.get();
+    }
+    void
+    SetBody(GoASTBlockStmt *body)
+    {
+        m_body_up.reset(body);
+    }
+
+    const GoASTStmt *
+    GetEls() const
+    {
+        return m_els_up.get();
+    }
+    void
+    SetEls(GoASTStmt *els)
+    {
+        m_els_up.reset(els);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTStmt> m_init_up;
+    std::unique_ptr<GoASTExpr> m_cond_up;
+    std::unique_ptr<GoASTBlockStmt> m_body_up;
+    std::unique_ptr<GoASTStmt> m_els_up;
+
+    GoASTIfStmt(const GoASTIfStmt &) = delete;
+    const GoASTIfStmt &operator=(const GoASTIfStmt &) = delete;
+};
+
+class GoASTImportSpec : public GoASTSpec
+{
+  public:
+    GoASTImportSpec(GoASTIdent *name, GoASTBasicLit *path) : GoASTSpec(eImportSpec), m_name_up(name), m_path_up(path) {}
+    ~GoASTImportSpec() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "ImportSpec";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eImportSpec;
+    }
+    
+    const GoASTIdent *
+    GetName() const
+    {
+        return m_name_up.get();
+    }
+    void
+    SetName(GoASTIdent *name)
+    {
+        m_name_up.reset(name);
+    }
+
+    const GoASTBasicLit *
+    GetPath() const
+    {
+        return m_path_up.get();
+    }
+    void
+    SetPath(GoASTBasicLit *path)
+    {
+        m_path_up.reset(path);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTIdent> m_name_up;
+    std::unique_ptr<GoASTBasicLit> m_path_up;
+
+    GoASTImportSpec(const GoASTImportSpec &) = delete;
+    const GoASTImportSpec &operator=(const GoASTImportSpec &) = delete;
+};
+
+class GoASTIncDecStmt : public GoASTStmt
+{
+  public:
+    GoASTIncDecStmt(GoASTExpr *x, TokenType tok) : GoASTStmt(eIncDecStmt), m_x_up(x), m_tok(tok) {}
+    ~GoASTIncDecStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "IncDecStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eIncDecStmt;
+    }
+    
+    const GoASTExpr *
+    GetX() const
+    {
+        return m_x_up.get();
+    }
+    void
+    SetX(GoASTExpr *x)
+    {
+        m_x_up.reset(x);
+    }
+
+    TokenType 
+    GetTok() const
+    {
+        return m_tok;
+    }
+    void
+    SetTok(TokenType tok)
+    {
+        m_tok = tok;
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_x_up;
+    TokenType m_tok;
+
+    GoASTIncDecStmt(const GoASTIncDecStmt &) = delete;
+    const GoASTIncDecStmt &operator=(const GoASTIncDecStmt &) = delete;
+};
+
+class GoASTIndexExpr : public GoASTExpr
+{
+  public:
+    GoASTIndexExpr(GoASTExpr *x, GoASTExpr *index) : GoASTExpr(eIndexExpr), m_x_up(x), m_index_up(index) {}
+    ~GoASTIndexExpr() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "IndexExpr";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eIndexExpr;
+    }
+    
+    const GoASTExpr *
+    GetX() const
+    {
+        return m_x_up.get();
+    }
+    void
+    SetX(GoASTExpr *x)
+    {
+        m_x_up.reset(x);
+    }
+
+    const GoASTExpr *
+    GetIndex() const
+    {
+        return m_index_up.get();
+    }
+    void
+    SetIndex(GoASTExpr *index)
+    {
+        m_index_up.reset(index);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_x_up;
+    std::unique_ptr<GoASTExpr> m_index_up;
+
+    GoASTIndexExpr(const GoASTIndexExpr &) = delete;
+    const GoASTIndexExpr &operator=(const GoASTIndexExpr &) = delete;
+};
+
+class GoASTInterfaceType : public GoASTExpr
+{
+  public:
+    explicit GoASTInterfaceType(GoASTFieldList *methods) : GoASTExpr(eInterfaceType), m_methods_up(methods) {}
+    ~GoASTInterfaceType() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "InterfaceType";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eInterfaceType;
+    }
+    
+    const GoASTFieldList *
+    GetMethods() const
+    {
+        return m_methods_up.get();
+    }
+    void
+    SetMethods(GoASTFieldList *methods)
+    {
+        m_methods_up.reset(methods);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTFieldList> m_methods_up;
+
+    GoASTInterfaceType(const GoASTInterfaceType &) = delete;
+    const GoASTInterfaceType &operator=(const GoASTInterfaceType &) = delete;
+};
+
+class GoASTKeyValueExpr : public GoASTExpr
+{
+  public:
+    GoASTKeyValueExpr(GoASTExpr *key, GoASTExpr *value) : GoASTExpr(eKeyValueExpr), m_key_up(key), m_value_up(value) {}
+    ~GoASTKeyValueExpr() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "KeyValueExpr";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eKeyValueExpr;
+    }
+    
+    const GoASTExpr *
+    GetKey() const
+    {
+        return m_key_up.get();
+    }
+    void
+    SetKey(GoASTExpr *key)
+    {
+        m_key_up.reset(key);
+    }
+
+    const GoASTExpr *
+    GetValue() const
+    {
+        return m_value_up.get();
+    }
+    void
+    SetValue(GoASTExpr *value)
+    {
+        m_value_up.reset(value);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_key_up;
+    std::unique_ptr<GoASTExpr> m_value_up;
+
+    GoASTKeyValueExpr(const GoASTKeyValueExpr &) = delete;
+    const GoASTKeyValueExpr &operator=(const GoASTKeyValueExpr &) = delete;
+};
+
+class GoASTLabeledStmt : public GoASTStmt
+{
+  public:
+    GoASTLabeledStmt(GoASTIdent *label, GoASTStmt *stmt) : GoASTStmt(eLabeledStmt), m_label_up(label), m_stmt_up(stmt) {}
+    ~GoASTLabeledStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "LabeledStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eLabeledStmt;
+    }
+    
+    const GoASTIdent *
+    GetLabel() const
+    {
+        return m_label_up.get();
+    }
+    void
+    SetLabel(GoASTIdent *label)
+    {
+        m_label_up.reset(label);
+    }
+
+    const GoASTStmt *
+    GetStmt() const
+    {
+        return m_stmt_up.get();
+    }
+    void
+    SetStmt(GoASTStmt *stmt)
+    {
+        m_stmt_up.reset(stmt);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTIdent> m_label_up;
+    std::unique_ptr<GoASTStmt> m_stmt_up;
+
+    GoASTLabeledStmt(const GoASTLabeledStmt &) = delete;
+    const GoASTLabeledStmt &operator=(const GoASTLabeledStmt &) = delete;
+};
+
+class GoASTMapType : public GoASTExpr
+{
+  public:
+    GoASTMapType(GoASTExpr *key, GoASTExpr *value) : GoASTExpr(eMapType), m_key_up(key), m_value_up(value) {}
+    ~GoASTMapType() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "MapType";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eMapType;
+    }
+    
+    const GoASTExpr *
+    GetKey() const
+    {
+        return m_key_up.get();
+    }
+    void
+    SetKey(GoASTExpr *key)
+    {
+        m_key_up.reset(key);
+    }
+
+    const GoASTExpr *
+    GetValue() const
+    {
+        return m_value_up.get();
+    }
+    void
+    SetValue(GoASTExpr *value)
+    {
+        m_value_up.reset(value);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_key_up;
+    std::unique_ptr<GoASTExpr> m_value_up;
+
+    GoASTMapType(const GoASTMapType &) = delete;
+    const GoASTMapType &operator=(const GoASTMapType &) = delete;
+};
+
+class GoASTParenExpr : public GoASTExpr
+{
+  public:
+    explicit GoASTParenExpr(GoASTExpr *x) : GoASTExpr(eParenExpr), m_x_up(x) {}
+    ~GoASTParenExpr() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "ParenExpr";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eParenExpr;
+    }
+    
+    const GoASTExpr *
+    GetX() const
+    {
+        return m_x_up.get();
+    }
+    void
+    SetX(GoASTExpr *x)
+    {
+        m_x_up.reset(x);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_x_up;
+
+    GoASTParenExpr(const GoASTParenExpr &) = delete;
+    const GoASTParenExpr &operator=(const GoASTParenExpr &) = delete;
+};
+
+class GoASTRangeStmt : public GoASTStmt
+{
+  public:
+    GoASTRangeStmt(GoASTExpr *key, GoASTExpr *value, bool define, GoASTExpr *x, GoASTBlockStmt *body) : GoASTStmt(eRangeStmt), m_key_up(key), m_value_up(value), m_define(define), m_x_up(x), m_body_up(body) {}
+    ~GoASTRangeStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "RangeStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eRangeStmt;
+    }
+    
+    const GoASTExpr *
+    GetKey() const
+    {
+        return m_key_up.get();
+    }
+    void
+    SetKey(GoASTExpr *key)
+    {
+        m_key_up.reset(key);
+    }
+
+    const GoASTExpr *
+    GetValue() const
+    {
+        return m_value_up.get();
+    }
+    void
+    SetValue(GoASTExpr *value)
+    {
+        m_value_up.reset(value);
+    }
+
+    bool 
+    GetDefine() const
+    {
+        return m_define;
+    }
+    void
+    SetDefine(bool define)
+    {
+        m_define = define;
+    }
+
+    const GoASTExpr *
+    GetX() const
+    {
+        return m_x_up.get();
+    }
+    void
+    SetX(GoASTExpr *x)
+    {
+        m_x_up.reset(x);
+    }
+
+    const GoASTBlockStmt *
+    GetBody() const
+    {
+        return m_body_up.get();
+    }
+    void
+    SetBody(GoASTBlockStmt *body)
+    {
+        m_body_up.reset(body);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_key_up;
+    std::unique_ptr<GoASTExpr> m_value_up;
+    bool m_define;
+    std::unique_ptr<GoASTExpr> m_x_up;
+    std::unique_ptr<GoASTBlockStmt> m_body_up;
+
+    GoASTRangeStmt(const GoASTRangeStmt &) = delete;
+    const GoASTRangeStmt &operator=(const GoASTRangeStmt &) = delete;
+};
+
+class GoASTReturnStmt : public GoASTStmt
+{
+  public:
+    GoASTReturnStmt() : GoASTStmt(eReturnStmt) {}
+    ~GoASTReturnStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "ReturnStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eReturnStmt;
+    }
+    
+    size_t
+    NumResults() const
+    {
+        return m_results.size();
+    }
+    const GoASTExpr *
+    GetResults(int i) const
+    {
+        return m_results[i].get();
+    }
+    void
+    AddResults(GoASTExpr *results)
+    {
+        m_results.push_back(std::unique_ptr<GoASTExpr>(results));
+    }
+
+  private:
+    friend class GoASTNode;
+    std::vector<std::unique_ptr<GoASTExpr> > m_results;
+
+    GoASTReturnStmt(const GoASTReturnStmt &) = delete;
+    const GoASTReturnStmt &operator=(const GoASTReturnStmt &) = delete;
+};
+
+class GoASTSelectStmt : public GoASTStmt
+{
+  public:
+    explicit GoASTSelectStmt(GoASTBlockStmt *body) : GoASTStmt(eSelectStmt), m_body_up(body) {}
+    ~GoASTSelectStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "SelectStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eSelectStmt;
+    }
+    
+    const GoASTBlockStmt *
+    GetBody() const
+    {
+        return m_body_up.get();
+    }
+    void
+    SetBody(GoASTBlockStmt *body)
+    {
+        m_body_up.reset(body);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTBlockStmt> m_body_up;
+
+    GoASTSelectStmt(const GoASTSelectStmt &) = delete;
+    const GoASTSelectStmt &operator=(const GoASTSelectStmt &) = delete;
+};
+
+class GoASTSelectorExpr : public GoASTExpr
+{
+  public:
+    GoASTSelectorExpr(GoASTExpr *x, GoASTIdent *sel) : GoASTExpr(eSelectorExpr), m_x_up(x), m_sel_up(sel) {}
+    ~GoASTSelectorExpr() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "SelectorExpr";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eSelectorExpr;
+    }
+    
+    const GoASTExpr *
+    GetX() const
+    {
+        return m_x_up.get();
+    }
+    void
+    SetX(GoASTExpr *x)
+    {
+        m_x_up.reset(x);
+    }
+
+    const GoASTIdent *
+    GetSel() const
+    {
+        return m_sel_up.get();
+    }
+    void
+    SetSel(GoASTIdent *sel)
+    {
+        m_sel_up.reset(sel);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_x_up;
+    std::unique_ptr<GoASTIdent> m_sel_up;
+
+    GoASTSelectorExpr(const GoASTSelectorExpr &) = delete;
+    const GoASTSelectorExpr &operator=(const GoASTSelectorExpr &) = delete;
+};
+
+class GoASTSendStmt : public GoASTStmt
+{
+  public:
+    GoASTSendStmt(GoASTExpr *chan, GoASTExpr *value) : GoASTStmt(eSendStmt), m_chan_up(chan), m_value_up(value) {}
+    ~GoASTSendStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "SendStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eSendStmt;
+    }
+    
+    const GoASTExpr *
+    GetChan() const
+    {
+        return m_chan_up.get();
+    }
+    void
+    SetChan(GoASTExpr *chan)
+    {
+        m_chan_up.reset(chan);
+    }
+
+    const GoASTExpr *
+    GetValue() const
+    {
+        return m_value_up.get();
+    }
+    void
+    SetValue(GoASTExpr *value)
+    {
+        m_value_up.reset(value);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_chan_up;
+    std::unique_ptr<GoASTExpr> m_value_up;
+
+    GoASTSendStmt(const GoASTSendStmt &) = delete;
+    const GoASTSendStmt &operator=(const GoASTSendStmt &) = delete;
+};
+
+class GoASTSliceExpr : public GoASTExpr
+{
+  public:
+    GoASTSliceExpr(GoASTExpr *x, GoASTExpr *low, GoASTExpr *high, GoASTExpr *max, bool slice3) : GoASTExpr(eSliceExpr), m_x_up(x), m_low_up(low), m_high_up(high), m_max_up(max), m_slice3(slice3) {}
+    ~GoASTSliceExpr() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "SliceExpr";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eSliceExpr;
+    }
+    
+    const GoASTExpr *
+    GetX() const
+    {
+        return m_x_up.get();
+    }
+    void
+    SetX(GoASTExpr *x)
+    {
+        m_x_up.reset(x);
+    }
+
+    const GoASTExpr *
+    GetLow() const
+    {
+        return m_low_up.get();
+    }
+    void
+    SetLow(GoASTExpr *low)
+    {
+        m_low_up.reset(low);
+    }
+
+    const GoASTExpr *
+    GetHigh() const
+    {
+        return m_high_up.get();
+    }
+    void
+    SetHigh(GoASTExpr *high)
+    {
+        m_high_up.reset(high);
+    }
+
+    const GoASTExpr *
+    GetMax() const
+    {
+        return m_max_up.get();
+    }
+    void
+    SetMax(GoASTExpr *max)
+    {
+        m_max_up.reset(max);
+    }
+
+    bool 
+    GetSlice3() const
+    {
+        return m_slice3;
+    }
+    void
+    SetSlice3(bool slice3)
+    {
+        m_slice3 = slice3;
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_x_up;
+    std::unique_ptr<GoASTExpr> m_low_up;
+    std::unique_ptr<GoASTExpr> m_high_up;
+    std::unique_ptr<GoASTExpr> m_max_up;
+    bool m_slice3;
+
+    GoASTSliceExpr(const GoASTSliceExpr &) = delete;
+    const GoASTSliceExpr &operator=(const GoASTSliceExpr &) = delete;
+};
+
+class GoASTStarExpr : public GoASTExpr
+{
+  public:
+    explicit GoASTStarExpr(GoASTExpr *x) : GoASTExpr(eStarExpr), m_x_up(x) {}
+    ~GoASTStarExpr() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "StarExpr";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eStarExpr;
+    }
+    
+    const GoASTExpr *
+    GetX() const
+    {
+        return m_x_up.get();
+    }
+    void
+    SetX(GoASTExpr *x)
+    {
+        m_x_up.reset(x);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_x_up;
+
+    GoASTStarExpr(const GoASTStarExpr &) = delete;
+    const GoASTStarExpr &operator=(const GoASTStarExpr &) = delete;
+};
+
+class GoASTStructType : public GoASTExpr
+{
+  public:
+    explicit GoASTStructType(GoASTFieldList *fields) : GoASTExpr(eStructType), m_fields_up(fields) {}
+    ~GoASTStructType() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "StructType";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eStructType;
+    }
+    
+    const GoASTFieldList *
+    GetFields() const
+    {
+        return m_fields_up.get();
+    }
+    void
+    SetFields(GoASTFieldList *fields)
+    {
+        m_fields_up.reset(fields);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTFieldList> m_fields_up;
+
+    GoASTStructType(const GoASTStructType &) = delete;
+    const GoASTStructType &operator=(const GoASTStructType &) = delete;
+};
+
+class GoASTSwitchStmt : public GoASTStmt
+{
+  public:
+    GoASTSwitchStmt(GoASTStmt *init, GoASTExpr *tag, GoASTBlockStmt *body) : GoASTStmt(eSwitchStmt), m_init_up(init), m_tag_up(tag), m_body_up(body) {}
+    ~GoASTSwitchStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "SwitchStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eSwitchStmt;
+    }
+    
+    const GoASTStmt *
+    GetInit() const
+    {
+        return m_init_up.get();
+    }
+    void
+    SetInit(GoASTStmt *init)
+    {
+        m_init_up.reset(init);
+    }
+
+    const GoASTExpr *
+    GetTag() const
+    {
+        return m_tag_up.get();
+    }
+    void
+    SetTag(GoASTExpr *tag)
+    {
+        m_tag_up.reset(tag);
+    }
+
+    const GoASTBlockStmt *
+    GetBody() const
+    {
+        return m_body_up.get();
+    }
+    void
+    SetBody(GoASTBlockStmt *body)
+    {
+        m_body_up.reset(body);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTStmt> m_init_up;
+    std::unique_ptr<GoASTExpr> m_tag_up;
+    std::unique_ptr<GoASTBlockStmt> m_body_up;
+
+    GoASTSwitchStmt(const GoASTSwitchStmt &) = delete;
+    const GoASTSwitchStmt &operator=(const GoASTSwitchStmt &) = delete;
+};
+
+class GoASTTypeAssertExpr : public GoASTExpr
+{
+  public:
+    GoASTTypeAssertExpr(GoASTExpr *x, GoASTExpr *type) : GoASTExpr(eTypeAssertExpr), m_x_up(x), m_type_up(type) {}
+    ~GoASTTypeAssertExpr() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "TypeAssertExpr";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eTypeAssertExpr;
+    }
+    
+    const GoASTExpr *
+    GetX() const
+    {
+        return m_x_up.get();
+    }
+    void
+    SetX(GoASTExpr *x)
+    {
+        m_x_up.reset(x);
+    }
+
+    const GoASTExpr *
+    GetType() const
+    {
+        return m_type_up.get();
+    }
+    void
+    SetType(GoASTExpr *type)
+    {
+        m_type_up.reset(type);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTExpr> m_x_up;
+    std::unique_ptr<GoASTExpr> m_type_up;
+
+    GoASTTypeAssertExpr(const GoASTTypeAssertExpr &) = delete;
+    const GoASTTypeAssertExpr &operator=(const GoASTTypeAssertExpr &) = delete;
+};
+
+class GoASTTypeSpec : public GoASTSpec
+{
+  public:
+    GoASTTypeSpec(GoASTIdent *name, GoASTExpr *type) : GoASTSpec(eTypeSpec), m_name_up(name), m_type_up(type) {}
+    ~GoASTTypeSpec() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "TypeSpec";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eTypeSpec;
+    }
+    
+    const GoASTIdent *
+    GetName() const
+    {
+        return m_name_up.get();
+    }
+    void
+    SetName(GoASTIdent *name)
+    {
+        m_name_up.reset(name);
+    }
+
+    const GoASTExpr *
+    GetType() const
+    {
+        return m_type_up.get();
+    }
+    void
+    SetType(GoASTExpr *type)
+    {
+        m_type_up.reset(type);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTIdent> m_name_up;
+    std::unique_ptr<GoASTExpr> m_type_up;
+
+    GoASTTypeSpec(const GoASTTypeSpec &) = delete;
+    const GoASTTypeSpec &operator=(const GoASTTypeSpec &) = delete;
+};
+
+class GoASTTypeSwitchStmt : public GoASTStmt
+{
+  public:
+    GoASTTypeSwitchStmt(GoASTStmt *init, GoASTStmt *assign, GoASTBlockStmt *body) : GoASTStmt(eTypeSwitchStmt), m_init_up(init), m_assign_up(assign), m_body_up(body) {}
+    ~GoASTTypeSwitchStmt() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "TypeSwitchStmt";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eTypeSwitchStmt;
+    }
+    
+    const GoASTStmt *
+    GetInit() const
+    {
+        return m_init_up.get();
+    }
+    void
+    SetInit(GoASTStmt *init)
+    {
+        m_init_up.reset(init);
+    }
+
+    const GoASTStmt *
+    GetAssign() const
+    {
+        return m_assign_up.get();
+    }
+    void
+    SetAssign(GoASTStmt *assign)
+    {
+        m_assign_up.reset(assign);
+    }
+
+    const GoASTBlockStmt *
+    GetBody() const
+    {
+        return m_body_up.get();
+    }
+    void
+    SetBody(GoASTBlockStmt *body)
+    {
+        m_body_up.reset(body);
+    }
+
+  private:
+    friend class GoASTNode;
+    std::unique_ptr<GoASTStmt> m_init_up;
+    std::unique_ptr<GoASTStmt> m_assign_up;
+    std::unique_ptr<GoASTBlockStmt> m_body_up;
+
+    GoASTTypeSwitchStmt(const GoASTTypeSwitchStmt &) = delete;
+    const GoASTTypeSwitchStmt &operator=(const GoASTTypeSwitchStmt &) = delete;
+};
+
+class GoASTUnaryExpr : public GoASTExpr
+{
+  public:
+    GoASTUnaryExpr(TokenType op, GoASTExpr *x) : GoASTExpr(eUnaryExpr), m_op(op), m_x_up(x) {}
+    ~GoASTUnaryExpr() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "UnaryExpr";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eUnaryExpr;
+    }
+    
+    TokenType 
+    GetOp() const
+    {
+        return m_op;
+    }
+    void
+    SetOp(TokenType op)
+    {
+        m_op = op;
+    }
+
+    const GoASTExpr *
+    GetX() const
+    {
+        return m_x_up.get();
+    }
+    void
+    SetX(GoASTExpr *x)
+    {
+        m_x_up.reset(x);
+    }
+
+  private:
+    friend class GoASTNode;
+    TokenType m_op;
+    std::unique_ptr<GoASTExpr> m_x_up;
+
+    GoASTUnaryExpr(const GoASTUnaryExpr &) = delete;
+    const GoASTUnaryExpr &operator=(const GoASTUnaryExpr &) = delete;
+};
+
+class GoASTValueSpec : public GoASTSpec
+{
+  public:
+    GoASTValueSpec() : GoASTSpec(eValueSpec) {}
+    ~GoASTValueSpec() override = default;
+
+    const char *
+    GetKindName() const override
+    {
+        return "ValueSpec";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == eValueSpec;
+    }
+    
+    size_t
+    NumNames() const
+    {
+        return m_names.size();
+    }
+    const GoASTIdent *
+    GetNames(int i) const
+    {
+        return m_names[i].get();
+    }
+    void
+    AddNames(GoASTIdent *names)
+    {
+        m_names.push_back(std::unique_ptr<GoASTIdent>(names));
+    }
+
+    const GoASTExpr *
+    GetType() const
+    {
+        return m_type_up.get();
+    }
+    void
+    SetType(GoASTExpr *type)
+    {
+        m_type_up.reset(type);
+    }
+
+    size_t
+    NumValues() const
+    {
+        return m_values.size();
+    }
+    const GoASTExpr *
+    GetValues(int i) const
+    {
+        return m_values[i].get();
+    }
+    void
+    AddValues(GoASTExpr *values)
+    {
+        m_values.push_back(std::unique_ptr<GoASTExpr>(values));
+    }
+
+  private:
+    friend class GoASTNode;
+    std::vector<std::unique_ptr<GoASTIdent> > m_names;
+    std::unique_ptr<GoASTExpr> m_type_up;
+    std::vector<std::unique_ptr<GoASTExpr> > m_values;
+
+    GoASTValueSpec(const GoASTValueSpec &) = delete;
+    const GoASTValueSpec &operator=(const GoASTValueSpec &) = delete;
+};
+
+
+template <typename R, typename V>
+R GoASTDecl::Visit(V* v) const
+{
+    switch(GetKind())
+    {
+    case eBadDecl:
+        return v->VisitBadDecl(llvm::cast<const GoASTBadDecl>(this));
+    case eFuncDecl:
+        return v->VisitFuncDecl(llvm::cast<const GoASTFuncDecl>(this));
+    case eGenDecl:
+        return v->VisitGenDecl(llvm::cast<const GoASTGenDecl>(this));
+    default:
+        assert(false && "Invalid kind");
+    }
+}
+
+template <typename R, typename V>
+R GoASTExpr::Visit(V* v) const
+{
+    switch(GetKind())
+    {
+    case eArrayType:
+        return v->VisitArrayType(llvm::cast<const GoASTArrayType>(this));
+    case eBadExpr:
+        return v->VisitBadExpr(llvm::cast<const GoASTBadExpr>(this));
+    case eBasicLit:
+        return v->VisitBasicLit(llvm::cast<const GoASTBasicLit>(this));
+    case eBinaryExpr:
+        return v->VisitBinaryExpr(llvm::cast<const GoASTBinaryExpr>(this));
+    case eIdent:
+        return v->VisitIdent(llvm::cast<const GoASTIdent>(this));
+    case eCallExpr:
+        return v->VisitCallExpr(llvm::cast<const GoASTCallExpr>(this));
+    case eChanType:
+        return v->VisitChanType(llvm::cast<const GoASTChanType>(this));
+    case eCompositeLit:
+        return v->VisitCompositeLit(llvm::cast<const GoASTCompositeLit>(this));
+    case eEllipsis:
+        return v->VisitEllipsis(llvm::cast<const GoASTEllipsis>(this));
+    case eFuncType:
+        return v->VisitFuncType(llvm::cast<const GoASTFuncType>(this));
+    case eFuncLit:
+        return v->VisitFuncLit(llvm::cast<const GoASTFuncLit>(this));
+    case eIndexExpr:
+        return v->VisitIndexExpr(llvm::cast<const GoASTIndexExpr>(this));
+    case eInterfaceType:
+        return v->VisitInterfaceType(llvm::cast<const GoASTInterfaceType>(this));
+    case eKeyValueExpr:
+        return v->VisitKeyValueExpr(llvm::cast<const GoASTKeyValueExpr>(this));
+    case eMapType:
+        return v->VisitMapType(llvm::cast<const GoASTMapType>(this));
+    case eParenExpr:
+        return v->VisitParenExpr(llvm::cast<const GoASTParenExpr>(this));
+    case eSelectorExpr:
+        return v->VisitSelectorExpr(llvm::cast<const GoASTSelectorExpr>(this));
+    case eSliceExpr:
+        return v->VisitSliceExpr(llvm::cast<const GoASTSliceExpr>(this));
+    case eStarExpr:
+        return v->VisitStarExpr(llvm::cast<const GoASTStarExpr>(this));
+    case eStructType:
+        return v->VisitStructType(llvm::cast<const GoASTStructType>(this));
+    case eTypeAssertExpr:
+        return v->VisitTypeAssertExpr(llvm::cast<const GoASTTypeAssertExpr>(this));
+    case eUnaryExpr:
+        return v->VisitUnaryExpr(llvm::cast<const GoASTUnaryExpr>(this));
+    default:
+        assert(false && "Invalid kind");
+    }
+}
+
+template <typename R, typename V>
+R GoASTSpec::Visit(V* v) const
+{
+    switch(GetKind())
+    {
+    case eImportSpec:
+        return v->VisitImportSpec(llvm::cast<const GoASTImportSpec>(this));
+    case eTypeSpec:
+        return v->VisitTypeSpec(llvm::cast<const GoASTTypeSpec>(this));
+    case eValueSpec:
+        return v->VisitValueSpec(llvm::cast<const GoASTValueSpec>(this));
+    default:
+        assert(false && "Invalid kind");
+    }
+}
+
+template <typename R, typename V>
+R GoASTStmt::Visit(V* v) const
+{
+    switch(GetKind())
+    {
+    case eAssignStmt:
+        return v->VisitAssignStmt(llvm::cast<const GoASTAssignStmt>(this));
+    case eBadStmt:
+        return v->VisitBadStmt(llvm::cast<const GoASTBadStmt>(this));
+    case eBlockStmt:
+        return v->VisitBlockStmt(llvm::cast<const GoASTBlockStmt>(this));
+    case eBranchStmt:
+        return v->VisitBranchStmt(llvm::cast<const GoASTBranchStmt>(this));
+    case eCaseClause:
+        return v->VisitCaseClause(llvm::cast<const GoASTCaseClause>(this));
+    case eCommClause:
+        return v->VisitCommClause(llvm::cast<const GoASTCommClause>(this));
+    case eDeclStmt:
+        return v->VisitDeclStmt(llvm::cast<const GoASTDeclStmt>(this));
+    case eDeferStmt:
+        return v->VisitDeferStmt(llvm::cast<const GoASTDeferStmt>(this));
+    case eEmptyStmt:
+        return v->VisitEmptyStmt(llvm::cast<const GoASTEmptyStmt>(this));
+    case eExprStmt:
+        return v->VisitExprStmt(llvm::cast<const GoASTExprStmt>(this));
+    case eForStmt:
+        return v->VisitForStmt(llvm::cast<const GoASTForStmt>(this));
+    case eGoStmt:
+        return v->VisitGoStmt(llvm::cast<const GoASTGoStmt>(this));
+    case eIfStmt:
+        return v->VisitIfStmt(llvm::cast<const GoASTIfStmt>(this));
+    case eIncDecStmt:
+        return v->VisitIncDecStmt(llvm::cast<const GoASTIncDecStmt>(this));
+    case eLabeledStmt:
+        return v->VisitLabeledStmt(llvm::cast<const GoASTLabeledStmt>(this));
+    case eRangeStmt:
+        return v->VisitRangeStmt(llvm::cast<const GoASTRangeStmt>(this));
+    case eReturnStmt:
+        return v->VisitReturnStmt(llvm::cast<const GoASTReturnStmt>(this));
+    case eSelectStmt:
+        return v->VisitSelectStmt(llvm::cast<const GoASTSelectStmt>(this));
+    case eSendStmt:
+        return v->VisitSendStmt(llvm::cast<const GoASTSendStmt>(this));
+    case eSwitchStmt:
+        return v->VisitSwitchStmt(llvm::cast<const GoASTSwitchStmt>(this));
+    case eTypeSwitchStmt:
+        return v->VisitTypeSwitchStmt(llvm::cast<const GoASTTypeSwitchStmt>(this));
+    default:
+        assert(false && "Invalid kind");
+    }
+}
+
+template <typename V>
+void GoASTNode::WalkChildren(V &v)
+{
+    switch (m_kind)
+    {
+
+
+    case eArrayType:
+        {
+            GoASTArrayType *n = llvm::cast<GoASTArrayType>(this);
+            (void)n;
+            v(n->m_len_up.get());
+            v(n->m_elt_up.get());
+            return;
+        }
+    case eAssignStmt:
+        {
+            GoASTAssignStmt *n = llvm::cast<GoASTAssignStmt>(this);
+            (void)n;
+            for (auto& e : n->m_lhs) { v(e.get()); }
+            for (auto& e : n->m_rhs) { v(e.get()); }
+            return;
+        }
+    case eBasicLit:
+        {
+            GoASTBasicLit *n = llvm::cast<GoASTBasicLit>(this);
+            (void)n;
+            return;
+        }
+    case eBinaryExpr:
+        {
+            GoASTBinaryExpr *n = llvm::cast<GoASTBinaryExpr>(this);
+            (void)n;
+            v(n->m_x_up.get());
+            v(n->m_y_up.get());
+            return;
+        }
+    case eBlockStmt:
+        {
+            GoASTBlockStmt *n = llvm::cast<GoASTBlockStmt>(this);
+            (void)n;
+            for (auto& e : n->m_list) { v(e.get()); }
+            return;
+        }
+    case eIdent:
+        {
+            GoASTIdent *n = llvm::cast<GoASTIdent>(this);
+            (void)n;
+            return;
+        }
+    case eBranchStmt:
+        {
+            GoASTBranchStmt *n = llvm::cast<GoASTBranchStmt>(this);
+            (void)n;
+            v(n->m_label_up.get());
+            return;
+        }
+    case eCallExpr:
+        {
+            GoASTCallExpr *n = llvm::cast<GoASTCallExpr>(this);
+            (void)n;
+            v(n->m_fun_up.get());
+            for (auto& e : n->m_args) { v(e.get()); }
+            return;
+        }
+    case eCaseClause:
+        {
+            GoASTCaseClause *n = llvm::cast<GoASTCaseClause>(this);
+            (void)n;
+            for (auto& e : n->m_list) { v(e.get()); }
+            for (auto& e : n->m_body) { v(e.get()); }
+            return;
+        }
+    case eChanType:
+        {
+            GoASTChanType *n = llvm::cast<GoASTChanType>(this);
+            (void)n;
+            v(n->m_value_up.get());
+            return;
+        }
+    case eCommClause:
+        {
+            GoASTCommClause *n = llvm::cast<GoASTCommClause>(this);
+            (void)n;
+            v(n->m_comm_up.get());
+            for (auto& e : n->m_body) { v(e.get()); }
+            return;
+        }
+    case eCompositeLit:
+        {
+            GoASTCompositeLit *n = llvm::cast<GoASTCompositeLit>(this);
+            (void)n;
+            v(n->m_type_up.get());
+            for (auto& e : n->m_elts) { v(e.get()); }
+            return;
+        }
+    case eDeclStmt:
+        {
+            GoASTDeclStmt *n = llvm::cast<GoASTDeclStmt>(this);
+            (void)n;
+            v(n->m_decl_up.get());
+            return;
+        }
+    case eDeferStmt:
+        {
+            GoASTDeferStmt *n = llvm::cast<GoASTDeferStmt>(this);
+            (void)n;
+            v(n->m_call_up.get());
+            return;
+        }
+    case eEllipsis:
+        {
+            GoASTEllipsis *n = llvm::cast<GoASTEllipsis>(this);
+            (void)n;
+            v(n->m_elt_up.get());
+            return;
+        }
+    case eExprStmt:
+        {
+            GoASTExprStmt *n = llvm::cast<GoASTExprStmt>(this);
+            (void)n;
+            v(n->m_x_up.get());
+            return;
+        }
+    case eField:
+        {
+            GoASTField *n = llvm::cast<GoASTField>(this);
+            (void)n;
+            for (auto& e : n->m_names) { v(e.get()); }
+            v(n->m_type_up.get());
+            v(n->m_tag_up.get());
+            return;
+        }
+    case eFieldList:
+        {
+            GoASTFieldList *n = llvm::cast<GoASTFieldList>(this);
+            (void)n;
+            for (auto& e : n->m_list) { v(e.get()); }
+            return;
+        }
+    case eForStmt:
+        {
+            GoASTForStmt *n = llvm::cast<GoASTForStmt>(this);
+            (void)n;
+            v(n->m_init_up.get());
+            v(n->m_cond_up.get());
+            v(n->m_post_up.get());
+            v(n->m_body_up.get());
+            return;
+        }
+    case eFuncType:
+        {
+            GoASTFuncType *n = llvm::cast<GoASTFuncType>(this);
+            (void)n;
+            v(n->m_params_up.get());
+            v(n->m_results_up.get());
+            return;
+        }
+    case eFuncDecl:
+        {
+            GoASTFuncDecl *n = llvm::cast<GoASTFuncDecl>(this);
+            (void)n;
+            v(n->m_recv_up.get());
+            v(n->m_name_up.get());
+            v(n->m_type_up.get());
+            v(n->m_body_up.get());
+            return;
+        }
+    case eFuncLit:
+        {
+            GoASTFuncLit *n = llvm::cast<GoASTFuncLit>(this);
+            (void)n;
+            v(n->m_type_up.get());
+            v(n->m_body_up.get());
+            return;
+        }
+    case eGenDecl:
+        {
+            GoASTGenDecl *n = llvm::cast<GoASTGenDecl>(this);
+            (void)n;
+            for (auto& e : n->m_specs) { v(e.get()); }
+            return;
+        }
+    case eGoStmt:
+        {
+            GoASTGoStmt *n = llvm::cast<GoASTGoStmt>(this);
+            (void)n;
+            v(n->m_call_up.get());
+            return;
+        }
+    case eIfStmt:
+        {
+            GoASTIfStmt *n = llvm::cast<GoASTIfStmt>(this);
+            (void)n;
+            v(n->m_init_up.get());
+            v(n->m_cond_up.get());
+            v(n->m_body_up.get());
+            v(n->m_els_up.get());
+            return;
+        }
+    case eImportSpec:
+        {
+            GoASTImportSpec *n = llvm::cast<GoASTImportSpec>(this);
+            (void)n;
+            v(n->m_name_up.get());
+            v(n->m_path_up.get());
+            return;
+        }
+    case eIncDecStmt:
+        {
+            GoASTIncDecStmt *n = llvm::cast<GoASTIncDecStmt>(this);
+            (void)n;
+            v(n->m_x_up.get());
+            return;
+        }
+    case eIndexExpr:
+        {
+            GoASTIndexExpr *n = llvm::cast<GoASTIndexExpr>(this);
+            (void)n;
+            v(n->m_x_up.get());
+            v(n->m_index_up.get());
+            return;
+        }
+    case eInterfaceType:
+        {
+            GoASTInterfaceType *n = llvm::cast<GoASTInterfaceType>(this);
+            (void)n;
+            v(n->m_methods_up.get());
+            return;
+        }
+    case eKeyValueExpr:
+        {
+            GoASTKeyValueExpr *n = llvm::cast<GoASTKeyValueExpr>(this);
+            (void)n;
+            v(n->m_key_up.get());
+            v(n->m_value_up.get());
+            return;
+        }
+    case eLabeledStmt:
+        {
+            GoASTLabeledStmt *n = llvm::cast<GoASTLabeledStmt>(this);
+            (void)n;
+            v(n->m_label_up.get());
+            v(n->m_stmt_up.get());
+            return;
+        }
+    case eMapType:
+        {
+            GoASTMapType *n = llvm::cast<GoASTMapType>(this);
+            (void)n;
+            v(n->m_key_up.get());
+            v(n->m_value_up.get());
+            return;
+        }
+    case eParenExpr:
+        {
+            GoASTParenExpr *n = llvm::cast<GoASTParenExpr>(this);
+            (void)n;
+            v(n->m_x_up.get());
+            return;
+        }
+    case eRangeStmt:
+        {
+            GoASTRangeStmt *n = llvm::cast<GoASTRangeStmt>(this);
+            (void)n;
+            v(n->m_key_up.get());
+            v(n->m_value_up.get());
+            v(n->m_x_up.get());
+            v(n->m_body_up.get());
+            return;
+        }
+    case eReturnStmt:
+        {
+            GoASTReturnStmt *n = llvm::cast<GoASTReturnStmt>(this);
+            (void)n;
+            for (auto& e : n->m_results) { v(e.get()); }
+            return;
+        }
+    case eSelectStmt:
+        {
+            GoASTSelectStmt *n = llvm::cast<GoASTSelectStmt>(this);
+            (void)n;
+            v(n->m_body_up.get());
+            return;
+        }
+    case eSelectorExpr:
+        {
+            GoASTSelectorExpr *n = llvm::cast<GoASTSelectorExpr>(this);
+            (void)n;
+            v(n->m_x_up.get());
+            v(n->m_sel_up.get());
+            return;
+        }
+    case eSendStmt:
+        {
+            GoASTSendStmt *n = llvm::cast<GoASTSendStmt>(this);
+            (void)n;
+            v(n->m_chan_up.get());
+            v(n->m_value_up.get());
+            return;
+        }
+    case eSliceExpr:
+        {
+            GoASTSliceExpr *n = llvm::cast<GoASTSliceExpr>(this);
+            (void)n;
+            v(n->m_x_up.get());
+            v(n->m_low_up.get());
+            v(n->m_high_up.get());
+            v(n->m_max_up.get());
+            return;
+        }
+    case eStarExpr:
+        {
+            GoASTStarExpr *n = llvm::cast<GoASTStarExpr>(this);
+            (void)n;
+            v(n->m_x_up.get());
+            return;
+        }
+    case eStructType:
+        {
+            GoASTStructType *n = llvm::cast<GoASTStructType>(this);
+            (void)n;
+            v(n->m_fields_up.get());
+            return;
+        }
+    case eSwitchStmt:
+        {
+            GoASTSwitchStmt *n = llvm::cast<GoASTSwitchStmt>(this);
+            (void)n;
+            v(n->m_init_up.get());
+            v(n->m_tag_up.get());
+            v(n->m_body_up.get());
+            return;
+        }
+    case eTypeAssertExpr:
+        {
+            GoASTTypeAssertExpr *n = llvm::cast<GoASTTypeAssertExpr>(this);
+            (void)n;
+            v(n->m_x_up.get());
+            v(n->m_type_up.get());
+            return;
+        }
+    case eTypeSpec:
+        {
+            GoASTTypeSpec *n = llvm::cast<GoASTTypeSpec>(this);
+            (void)n;
+            v(n->m_name_up.get());
+            v(n->m_type_up.get());
+            return;
+        }
+    case eTypeSwitchStmt:
+        {
+            GoASTTypeSwitchStmt *n = llvm::cast<GoASTTypeSwitchStmt>(this);
+            (void)n;
+            v(n->m_init_up.get());
+            v(n->m_assign_up.get());
+            v(n->m_body_up.get());
+            return;
+        }
+    case eUnaryExpr:
+        {
+            GoASTUnaryExpr *n = llvm::cast<GoASTUnaryExpr>(this);
+            (void)n;
+            v(n->m_x_up.get());
+            return;
+        }
+    case eValueSpec:
+        {
+            GoASTValueSpec *n = llvm::cast<GoASTValueSpec>(this);
+            (void)n;
+            for (auto& e : n->m_names) { v(e.get()); }
+            v(n->m_type_up.get());
+            for (auto& e : n->m_values) { v(e.get()); }
+            return;
+        }
+
+        case eEmptyStmt:
+        case eBadDecl:
+        case eBadExpr:
+        case eBadStmt:
+          break;
+    }
+}
+
+}  // namespace lldb_private
+
+#endif
+
diff --git a/source/Plugins/ExpressionParser/Go/GoLexer.cpp b/source/Plugins/ExpressionParser/Go/GoLexer.cpp
new file mode 100644
index 0000000000000..6de0f5619ca8c
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/GoLexer.cpp
@@ -0,0 +1,402 @@
+//===-- GoLexer.cpp ---------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <string.h>
+
+#include "GoLexer.h"
+
+using namespace lldb_private;
+
+llvm::StringMap<GoLexer::TokenType> *GoLexer::m_keywords;
+
+GoLexer::GoLexer(const char *src) : m_src(src), m_end(src + strlen(src)), m_last_token(TOK_INVALID, "")
+{
+}
+
+bool
+GoLexer::SkipWhitespace()
+{
+    bool saw_newline = false;
+    for (; m_src < m_end; ++m_src)
+    {
+        if (*m_src == '\n')
+            saw_newline = true;
+        if (*m_src == '/' && !SkipComment())
+            return saw_newline;
+        else if (!IsWhitespace(*m_src))
+            return saw_newline;
+    }
+    return saw_newline;
+}
+
+bool
+GoLexer::SkipComment()
+{
+    if (m_src[0] == '/' && m_src[1] == '/')
+    {
+        for (const char *c = m_src + 2; c < m_end; ++c)
+        {
+            if (*c == '\n')
+            {
+                m_src = c - 1;
+                return true;
+            }
+        }
+        return true;
+    }
+    else if (m_src[0] == '/' && m_src[1] == '*')
+    {
+        for (const char *c = m_src + 2; c < m_end; ++c)
+        {
+            if (c[0] == '*' && c[1] == '/')
+            {
+                m_src = c + 1;
+                return true;
+            }
+        }
+    }
+    return false;
+}
+
+const GoLexer::Token &
+GoLexer::Lex()
+{
+    bool newline = SkipWhitespace();
+    const char *start = m_src;
+    m_last_token.m_type = InternalLex(newline);
+    m_last_token.m_value = llvm::StringRef(start, m_src - start);
+    return m_last_token;
+}
+
+GoLexer::TokenType
+GoLexer::InternalLex(bool newline)
+{
+    if (m_src >= m_end)
+    {
+        return TOK_EOF;
+    }
+    if (newline)
+    {
+        switch (m_last_token.m_type)
+        {
+            case TOK_IDENTIFIER:
+            case LIT_FLOAT:
+            case LIT_IMAGINARY:
+            case LIT_INTEGER:
+            case LIT_RUNE:
+            case LIT_STRING:
+            case KEYWORD_BREAK:
+            case KEYWORD_CONTINUE:
+            case KEYWORD_FALLTHROUGH:
+            case KEYWORD_RETURN:
+            case OP_PLUS_PLUS:
+            case OP_MINUS_MINUS:
+            case OP_RPAREN:
+            case OP_RBRACK:
+            case OP_RBRACE:
+                return OP_SEMICOLON;
+            default:
+                break;
+        }
+    }
+    char c = *m_src;
+    switch (c)
+    {
+        case '0':
+        case '1':
+        case '2':
+        case '3':
+        case '4':
+        case '5':
+        case '6':
+        case '7':
+        case '8':
+        case '9':
+            return DoNumber();
+        case '+':
+        case '-':
+        case '*':
+        case '/':
+        case '%':
+        case '&':
+        case '|':
+        case '^':
+        case '<':
+        case '>':
+        case '!':
+        case ':':
+        case ';':
+        case '(':
+        case ')':
+        case '[':
+        case ']':
+        case '{':
+        case '}':
+        case ',':
+        case '=':
+            return DoOperator();
+        case '.':
+            if (IsDecimal(m_src[1]))
+                return DoNumber();
+            return DoOperator();
+        case '$':
+            // For lldb persistent vars.
+            return DoIdent();
+        case '"':
+        case '`':
+            return DoString();
+        case '\'':
+            return DoRune();
+        default:
+            break;
+    }
+    if (IsLetterOrDigit(c))
+        return DoIdent();
+    ++m_src;
+    return TOK_INVALID;
+}
+
+GoLexer::TokenType
+GoLexer::DoOperator()
+{
+    TokenType t = TOK_INVALID;
+    if (m_end - m_src > 2)
+    {
+        t = LookupKeyword(llvm::StringRef(m_src, 3));
+        if (t != TOK_INVALID)
+            m_src += 3;
+    }
+    if (t == TOK_INVALID && m_end - m_src > 1)
+    {
+        t = LookupKeyword(llvm::StringRef(m_src, 2));
+        if (t != TOK_INVALID)
+            m_src += 2;
+    }
+    if (t == TOK_INVALID)
+    {
+        t = LookupKeyword(llvm::StringRef(m_src, 1));
+        ++m_src;
+    }
+    return t;
+}
+
+GoLexer::TokenType
+GoLexer::DoIdent()
+{
+    const char *start = m_src++;
+    while (m_src < m_end && IsLetterOrDigit(*m_src))
+    {
+        ++m_src;
+    }
+    TokenType kw = LookupKeyword(llvm::StringRef(start, m_src - start));
+    if (kw != TOK_INVALID)
+        return kw;
+    return TOK_IDENTIFIER;
+}
+
+GoLexer::TokenType
+GoLexer::DoNumber()
+{
+    if (m_src[0] == '0' && (m_src[1] == 'x' || m_src[1] == 'X'))
+    {
+        m_src += 2;
+        while (IsHexChar(*m_src))
+            ++m_src;
+        return LIT_INTEGER;
+    }
+    bool dot_ok = true;
+    bool e_ok = true;
+    while (true)
+    {
+        while (IsDecimal(*m_src))
+            ++m_src;
+        switch (*m_src)
+        {
+            case 'i':
+                ++m_src;
+                return LIT_IMAGINARY;
+            case '.':
+                if (!dot_ok)
+                    return LIT_FLOAT;
+                ++m_src;
+                dot_ok = false;
+                break;
+            case 'e':
+            case 'E':
+                if (!e_ok)
+                    return LIT_FLOAT;
+                dot_ok = e_ok = false;
+                ++m_src;
+                if (*m_src == '+' || *m_src == '-')
+                    ++m_src;
+                break;
+            default:
+                if (dot_ok)
+                    return LIT_INTEGER;
+                return LIT_FLOAT;
+        }
+    }
+}
+
+GoLexer::TokenType
+GoLexer::DoRune()
+{
+    while (++m_src < m_end)
+    {
+        switch (*m_src)
+        {
+            case '\'':
+                ++m_src;
+                return LIT_RUNE;
+            case '\n':
+                return TOK_INVALID;
+            case '\\':
+                if (m_src[1] == '\n')
+                    return TOK_INVALID;
+                ++m_src;
+        }
+    }
+    return TOK_INVALID;
+}
+
+GoLexer::TokenType
+GoLexer::DoString()
+{
+    if (*m_src == '`')
+    {
+        while (++m_src < m_end)
+        {
+            if (*m_src == '`')
+            {
+                ++m_src;
+                return LIT_STRING;
+            }
+        }
+        return TOK_INVALID;
+    }
+    while (++m_src < m_end)
+    {
+        switch (*m_src)
+        {
+            case '"':
+                ++m_src;
+                return LIT_STRING;
+            case '\n':
+                return TOK_INVALID;
+            case '\\':
+                if (m_src[1] == '\n')
+                    return TOK_INVALID;
+                ++m_src;
+        }
+    }
+    return TOK_INVALID;
+}
+
+GoLexer::TokenType
+GoLexer::LookupKeyword(llvm::StringRef id)
+{
+    if (m_keywords == nullptr)
+        m_keywords = InitKeywords();
+    const auto &it = m_keywords->find(id);
+    if (it == m_keywords->end())
+        return TOK_INVALID;
+    return it->second;
+}
+
+llvm::StringRef
+GoLexer::LookupToken(TokenType t)
+{
+    if (m_keywords == nullptr)
+        m_keywords = InitKeywords();
+    for (const auto &e : *m_keywords)
+    {
+        if (e.getValue() == t)
+            return e.getKey();
+    }
+    return "";
+}
+
+llvm::StringMap<GoLexer::TokenType> *
+GoLexer::InitKeywords()
+{
+    auto &result = *new llvm::StringMap<TokenType>(128);
+    result["break"] = KEYWORD_BREAK;
+    result["default"] = KEYWORD_DEFAULT;
+    result["func"] = KEYWORD_FUNC;
+    result["interface"] = KEYWORD_INTERFACE;
+    result["select"] = KEYWORD_SELECT;
+    result["case"] = KEYWORD_CASE;
+    result["defer"] = KEYWORD_DEFER;
+    result["go"] = KEYWORD_GO;
+    result["map"] = KEYWORD_MAP;
+    result["struct"] = KEYWORD_STRUCT;
+    result["chan"] = KEYWORD_CHAN;
+    result["else"] = KEYWORD_ELSE;
+    result["goto"] = KEYWORD_GOTO;
+    result["package"] = KEYWORD_PACKAGE;
+    result["switch"] = KEYWORD_SWITCH;
+    result["const"] = KEYWORD_CONST;
+    result["fallthrough"] = KEYWORD_FALLTHROUGH;
+    result["if"] = KEYWORD_IF;
+    result["range"] = KEYWORD_RANGE;
+    result["type"] = KEYWORD_TYPE;
+    result["continue"] = KEYWORD_CONTINUE;
+    result["for"] = KEYWORD_FOR;
+    result["import"] = KEYWORD_IMPORT;
+    result["return"] = KEYWORD_RETURN;
+    result["var"] = KEYWORD_VAR;
+    result["+"] = OP_PLUS;
+    result["-"] = OP_MINUS;
+    result["*"] = OP_STAR;
+    result["/"] = OP_SLASH;
+    result["%"] = OP_PERCENT;
+    result["&"] = OP_AMP;
+    result["|"] = OP_PIPE;
+    result["^"] = OP_CARET;
+    result["<<"] = OP_LSHIFT;
+    result[">>"] = OP_RSHIFT;
+    result["&^"] = OP_AMP_CARET;
+    result["+="] = OP_PLUS_EQ;
+    result["-="] = OP_MINUS_EQ;
+    result["*="] = OP_STAR_EQ;
+    result["/="] = OP_SLASH_EQ;
+    result["%="] = OP_PERCENT_EQ;
+    result["&="] = OP_AMP_EQ;
+    result["|="] = OP_PIPE_EQ;
+    result["^="] = OP_CARET_EQ;
+    result["<<="] = OP_LSHIFT_EQ;
+    result[">>="] = OP_RSHIFT_EQ;
+    result["&^="] = OP_AMP_CARET_EQ;
+    result["&&"] = OP_AMP_AMP;
+    result["||"] = OP_PIPE_PIPE;
+    result["<-"] = OP_LT_MINUS;
+    result["++"] = OP_PLUS_PLUS;
+    result["--"] = OP_MINUS_MINUS;
+    result["=="] = OP_EQ_EQ;
+    result["<"] = OP_LT;
+    result[">"] = OP_GT;
+    result["="] = OP_EQ;
+    result["!"] = OP_BANG;
+    result["!="] = OP_BANG_EQ;
+    result["<="] = OP_LT_EQ;
+    result[">="] = OP_GT_EQ;
+    result[":="] = OP_COLON_EQ;
+    result["..."] = OP_DOTS;
+    result["("] = OP_LPAREN;
+    result["["] = OP_LBRACK;
+    result["{"] = OP_LBRACE;
+    result[","] = OP_COMMA;
+    result["."] = OP_DOT;
+    result[")"] = OP_RPAREN;
+    result["]"] = OP_RBRACK;
+    result["}"] = OP_RBRACE;
+    result[";"] = OP_SEMICOLON;
+    result[":"] = OP_COLON;
+    return &result;
+}
diff --git a/source/Plugins/ExpressionParser/Go/GoLexer.h b/source/Plugins/ExpressionParser/Go/GoLexer.h
new file mode 100644
index 0000000000000..e8e1635bab771
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/GoLexer.h
@@ -0,0 +1,201 @@
+//===-- GoLexer.h -----------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_GoLexer_h
+#define liblldb_GoLexer_h
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/StringMap.h"
+
+namespace lldb_private
+{
+
+class GoLexer
+{
+  public:
+    explicit GoLexer(const char *src);
+
+    enum TokenType
+    {
+        TOK_EOF,
+        TOK_INVALID,
+        TOK_IDENTIFIER,
+        LIT_INTEGER,
+        LIT_FLOAT,
+        LIT_IMAGINARY,
+        LIT_RUNE,
+        LIT_STRING,
+        KEYWORD_BREAK,
+        KEYWORD_DEFAULT,
+        KEYWORD_FUNC,
+        KEYWORD_INTERFACE,
+        KEYWORD_SELECT,
+        KEYWORD_CASE,
+        KEYWORD_DEFER,
+        KEYWORD_GO,
+        KEYWORD_MAP,
+        KEYWORD_STRUCT,
+        KEYWORD_CHAN,
+        KEYWORD_ELSE,
+        KEYWORD_GOTO,
+        KEYWORD_PACKAGE,
+        KEYWORD_SWITCH,
+        KEYWORD_CONST,
+        KEYWORD_FALLTHROUGH,
+        KEYWORD_IF,
+        KEYWORD_RANGE,
+        KEYWORD_TYPE,
+        KEYWORD_CONTINUE,
+        KEYWORD_FOR,
+        KEYWORD_IMPORT,
+        KEYWORD_RETURN,
+        KEYWORD_VAR,
+        OP_PLUS,
+        OP_MINUS,
+        OP_STAR,
+        OP_SLASH,
+        OP_PERCENT,
+        OP_AMP,
+        OP_PIPE,
+        OP_CARET,
+        OP_LSHIFT,
+        OP_RSHIFT,
+        OP_AMP_CARET,
+        OP_PLUS_EQ,
+        OP_MINUS_EQ,
+        OP_STAR_EQ,
+        OP_SLASH_EQ,
+        OP_PERCENT_EQ,
+        OP_AMP_EQ,
+        OP_PIPE_EQ,
+        OP_CARET_EQ,
+        OP_LSHIFT_EQ,
+        OP_RSHIFT_EQ,
+        OP_AMP_CARET_EQ,
+        OP_AMP_AMP,
+        OP_PIPE_PIPE,
+        OP_LT_MINUS,
+        OP_PLUS_PLUS,
+        OP_MINUS_MINUS,
+        OP_EQ_EQ,
+        OP_LT,
+        OP_GT,
+        OP_EQ,
+        OP_BANG,
+        OP_BANG_EQ,
+        OP_LT_EQ,
+        OP_GT_EQ,
+        OP_COLON_EQ,
+        OP_DOTS,
+        OP_LPAREN,
+        OP_LBRACK,
+        OP_LBRACE,
+        OP_COMMA,
+        OP_DOT,
+        OP_RPAREN,
+        OP_RBRACK,
+        OP_RBRACE,
+        OP_SEMICOLON,
+        OP_COLON,
+    };
+
+    struct Token
+    {
+        explicit Token(TokenType t, llvm::StringRef text) : m_type(t), m_value(text) {}
+        TokenType m_type;
+        llvm::StringRef m_value;
+    };
+
+    const Token &Lex();
+
+    size_t
+    BytesRemaining() const
+    {
+        return m_end - m_src;
+    }
+    llvm::StringRef
+    GetString(int len) const
+    {
+        return llvm::StringRef(m_src, len);
+    }
+
+    static TokenType LookupKeyword(llvm::StringRef id);
+    static llvm::StringRef LookupToken(TokenType t);
+
+  private:
+    bool
+    IsDecimal(char c)
+    {
+        return c >= '0' && c <= '9';
+    }
+    bool
+    IsHexChar(char c)
+    {
+        if (c >= '0' && c <= '9')
+            return true;
+        if (c >= 'A' && c <= 'F')
+            return true;
+        if (c >= 'a' && c <= 'f')
+            return true;
+        return false;
+    }
+    bool
+    IsLetterOrDigit(char c)
+    {
+        if (c >= 'a' && c <= 'z')
+            return true;
+        if (c >= 'A' && c <= 'Z')
+            return true;
+        if (c == '_')
+            return true;
+        if (c >= '0' && c <= '9')
+            return true;
+        // Treat all non-ascii chars as letters for simplicity.
+        return 0 != (c & 0x80);
+    }
+    bool
+    IsWhitespace(char c)
+    {
+        switch (c)
+        {
+            case ' ':
+            case '\t':
+            case '\r':
+                return true;
+        }
+        return false;
+    }
+
+    bool SkipWhitespace();
+    bool SkipComment();
+
+    TokenType InternalLex(bool newline);
+
+    TokenType DoOperator();
+
+    TokenType DoIdent();
+
+    TokenType DoNumber();
+
+    TokenType DoRune();
+
+    TokenType DoString();
+
+    static llvm::StringMap<TokenType> *InitKeywords();
+
+    static llvm::StringMap<TokenType> *m_keywords;
+
+    const char *m_src;
+    const char *m_end;
+    Token m_last_token;
+};
+
+} // namespace lldb_private
+
+#endif
diff --git a/source/Plugins/ExpressionParser/Go/GoParser.cpp b/source/Plugins/ExpressionParser/Go/GoParser.cpp
new file mode 100644
index 0000000000000..0f136f7e61dc8
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/GoParser.cpp
@@ -0,0 +1,1035 @@
+//===-- GoParser.cpp ---------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <vector>
+
+#include "GoParser.h"
+
+#include "lldb/Core/Error.h"
+#include "llvm/ADT/SmallString.h"
+#include "Plugins/ExpressionParser/Go/GoAST.h"
+
+using namespace lldb_private;
+using namespace lldb;
+
+namespace
+{
+llvm::StringRef
+DescribeToken(GoLexer::TokenType t)
+{
+    switch (t)
+    {
+        case GoLexer::TOK_EOF:
+            return "<eof>";
+        case GoLexer::TOK_IDENTIFIER:
+            return "identifier";
+        case GoLexer::LIT_FLOAT:
+            return "float";
+        case GoLexer::LIT_IMAGINARY:
+            return "imaginary";
+        case GoLexer::LIT_INTEGER:
+            return "integer";
+        case GoLexer::LIT_RUNE:
+            return "rune";
+        case GoLexer::LIT_STRING:
+            return "string";
+        default:
+            return GoLexer::LookupToken(t);
+    }
+}
+} // namespace
+
+class GoParser::Rule
+{
+  public:
+    Rule(llvm::StringRef name, GoParser *p) : m_name(name), m_parser(p), m_pos(p->m_pos) {}
+
+    std::nullptr_t
+    error()
+    {
+        if (!m_parser->m_failed)
+        {
+            // Set m_error in case this is the top level.
+            if (m_parser->m_last_tok == GoLexer::TOK_INVALID)
+                m_parser->m_error = m_parser->m_last;
+            else
+                m_parser->m_error = DescribeToken(m_parser->m_last_tok);
+            // And set m_last in case it isn't.
+            m_parser->m_last = m_name;
+            m_parser->m_last_tok = GoLexer::TOK_INVALID;
+            m_parser->m_pos = m_pos;
+        }
+        return nullptr;
+    }
+
+  private:
+    llvm::StringRef m_name;
+    GoParser *m_parser;
+    size_t m_pos;
+};
+
+GoParser::GoParser(const char *src) : m_lexer(src), m_pos(0), m_failed(false)
+{
+}
+
+GoASTStmt *
+GoParser::Statement()
+{
+    Rule r("Statement", this);
+    GoLexer::TokenType t = peek();
+    GoASTStmt *ret = nullptr;
+    switch (t)
+    {
+        case GoLexer::TOK_EOF:
+        case GoLexer::OP_SEMICOLON:
+        case GoLexer::OP_RPAREN:
+        case GoLexer::OP_RBRACE:
+        case GoLexer::TOK_INVALID:
+            return EmptyStmt();
+        case GoLexer::OP_LBRACE:
+            return Block();
+
+        /*      TODO:
+    case GoLexer::KEYWORD_GO:
+        return GoStmt();
+    case GoLexer::KEYWORD_RETURN:
+        return ReturnStmt();
+    case GoLexer::KEYWORD_BREAK:
+    case GoLexer::KEYWORD_CONTINUE:
+    case GoLexer::KEYWORD_GOTO:
+    case GoLexer::KEYWORD_FALLTHROUGH:
+        return BranchStmt();
+    case GoLexer::KEYWORD_IF:
+        return IfStmt();
+    case GoLexer::KEYWORD_SWITCH:
+        return SwitchStmt();
+    case GoLexer::KEYWORD_SELECT:
+        return SelectStmt();
+    case GoLexer::KEYWORD_FOR:
+        return ForStmt();
+    case GoLexer::KEYWORD_DEFER:
+        return DeferStmt();
+    case GoLexer::KEYWORD_CONST:
+    case GoLexer::KEYWORD_TYPE:
+    case GoLexer::KEYWORD_VAR:
+        return DeclStmt();
+    case GoLexer::TOK_IDENTIFIER:
+        if ((ret = LabeledStmt()) ||
+            (ret = ShortVarDecl()))
+        {
+            return ret;
+        }
+*/
+        default:
+            break;
+    }
+    GoASTExpr *expr = Expression();
+    if (expr == nullptr)
+        return r.error();
+    if (/*(ret = SendStmt(expr)) ||*/
+        (ret = IncDecStmt(expr)) || (ret = Assignment(expr)) || (ret = ExpressionStmt(expr)))
+    {
+        return ret;
+    }
+    delete expr;
+    return r.error();
+}
+
+GoASTStmt *
+GoParser::ExpressionStmt(GoASTExpr *e)
+{
+    if (Semicolon())
+        return new GoASTExprStmt(e);
+    return nullptr;
+}
+
+GoASTStmt *
+GoParser::IncDecStmt(GoASTExpr *e)
+{
+    Rule r("IncDecStmt", this);
+    if (match(GoLexer::OP_PLUS_PLUS))
+        return Semicolon() ? new GoASTIncDecStmt(e, GoLexer::OP_PLUS_PLUS) : r.error();
+    if (match(GoLexer::OP_MINUS_MINUS))
+        return Semicolon() ? new GoASTIncDecStmt(e, GoLexer::OP_MINUS_MINUS) : r.error();
+    return nullptr;
+}
+
+GoASTStmt *
+GoParser::Assignment(lldb_private::GoASTExpr *e)
+{
+    Rule r("Assignment", this);
+    std::vector<std::unique_ptr<GoASTExpr>> lhs;
+    for (GoASTExpr *l = MoreExpressionList(); l; l = MoreExpressionList())
+        lhs.push_back(std::unique_ptr<GoASTExpr>(l));
+    switch (peek())
+    {
+        case GoLexer::OP_EQ:
+        case GoLexer::OP_PLUS_EQ:
+        case GoLexer::OP_MINUS_EQ:
+        case GoLexer::OP_PIPE_EQ:
+        case GoLexer::OP_CARET_EQ:
+        case GoLexer::OP_STAR_EQ:
+        case GoLexer::OP_SLASH_EQ:
+        case GoLexer::OP_PERCENT_EQ:
+        case GoLexer::OP_LSHIFT_EQ:
+        case GoLexer::OP_RSHIFT_EQ:
+        case GoLexer::OP_AMP_EQ:
+        case GoLexer::OP_AMP_CARET_EQ:
+            break;
+        default:
+            return r.error();
+    }
+    // We don't want to own e until we know this is an assignment.
+    std::unique_ptr<GoASTAssignStmt> stmt(new GoASTAssignStmt(false));
+    stmt->AddLhs(e);
+    for (auto &l : lhs)
+        stmt->AddLhs(l.release());
+    for (GoASTExpr *r = Expression(); r; r = MoreExpressionList())
+        stmt->AddRhs(r);
+    if (!Semicolon() || stmt->NumRhs() == 0)
+        return new GoASTBadStmt;
+    return stmt.release();
+}
+
+GoASTStmt *
+GoParser::EmptyStmt()
+{
+    if (match(GoLexer::TOK_EOF))
+        return nullptr;
+    if (Semicolon())
+        return new GoASTEmptyStmt;
+    return nullptr;
+}
+
+GoASTStmt *
+GoParser::GoStmt()
+{
+    if (match(GoLexer::KEYWORD_GO))
+    {
+        if (GoASTCallExpr *e = llvm::dyn_cast_or_null<GoASTCallExpr>(Expression()))
+        {
+            return FinishStmt(new GoASTGoStmt(e));
+        }
+        m_last = "call expression";
+        m_failed = true;
+        return new GoASTBadStmt();
+    }
+    return nullptr;
+}
+
+GoASTStmt *
+GoParser::ReturnStmt()
+{
+    if (match(GoLexer::KEYWORD_RETURN))
+    {
+        std::unique_ptr<GoASTReturnStmt> r(new GoASTReturnStmt());
+        for (GoASTExpr *e = Expression(); e; e = MoreExpressionList())
+            r->AddResults(e);
+        return FinishStmt(r.release());
+    }
+    return nullptr;
+}
+
+GoASTStmt *
+GoParser::BranchStmt()
+{
+    GoLexer::Token *tok;
+    if ((tok = match(GoLexer::KEYWORD_BREAK)) || (tok = match(GoLexer::KEYWORD_CONTINUE)) ||
+        (tok = match(GoLexer::KEYWORD_GOTO)))
+    {
+        auto *e = Identifier();
+        if (tok->m_type == GoLexer::KEYWORD_GOTO && !e)
+            return syntaxerror();
+        return FinishStmt(new GoASTBranchStmt(e, tok->m_type));
+    }
+    if ((tok = match(GoLexer::KEYWORD_FALLTHROUGH)))
+        return FinishStmt(new GoASTBranchStmt(nullptr, tok->m_type));
+
+    return nullptr;
+}
+
+GoASTIdent *
+GoParser::Identifier()
+{
+    if (auto *tok = match(GoLexer::TOK_IDENTIFIER))
+        return new GoASTIdent(*tok);
+    return nullptr;
+}
+
+GoASTExpr *
+GoParser::MoreExpressionList()
+{
+    if (match(GoLexer::OP_COMMA))
+    {
+        auto *e = Expression();
+        if (!e)
+            return syntaxerror();
+        return e;
+    }
+    return nullptr;
+}
+
+GoASTIdent *
+GoParser::MoreIdentifierList()
+{
+    if (match(GoLexer::OP_COMMA))
+    {
+        auto *i = Identifier();
+        if (!i)
+            return syntaxerror();
+        return i;
+    }
+    return nullptr;
+}
+
+GoASTExpr *
+GoParser::Expression()
+{
+    Rule r("Expression", this);
+    if (GoASTExpr *ret = OrExpr())
+        return ret;
+    return r.error();
+}
+
+GoASTExpr *
+GoParser::UnaryExpr()
+{
+    switch (peek())
+    {
+        case GoLexer::OP_PLUS:
+        case GoLexer::OP_MINUS:
+        case GoLexer::OP_BANG:
+        case GoLexer::OP_CARET:
+        case GoLexer::OP_STAR:
+        case GoLexer::OP_AMP:
+        case GoLexer::OP_LT_MINUS:
+        {
+            const GoLexer::Token t = next();
+            if (GoASTExpr *e = UnaryExpr())
+            {
+                if (t.m_type == GoLexer::OP_STAR)
+                    return new GoASTStarExpr(e);
+                else
+                    return new GoASTUnaryExpr(t.m_type, e);
+            }
+            return syntaxerror();
+        }
+        default:
+            return PrimaryExpr();
+    }
+}
+
+GoASTExpr *
+GoParser::OrExpr()
+{
+    std::unique_ptr<GoASTExpr> l(AndExpr());
+    if (l)
+    {
+        while (match(GoLexer::OP_PIPE_PIPE))
+        {
+            GoASTExpr *r = AndExpr();
+            if (r)
+                l.reset(new GoASTBinaryExpr(l.release(), r, GoLexer::OP_PIPE_PIPE));
+            else
+                return syntaxerror();
+        }
+        return l.release();
+    }
+    return nullptr;
+}
+
+GoASTExpr *
+GoParser::AndExpr()
+{
+    std::unique_ptr<GoASTExpr> l(RelExpr());
+    if (l)
+    {
+        while (match(GoLexer::OP_AMP_AMP))
+        {
+            GoASTExpr *r = RelExpr();
+            if (r)
+                l.reset(new GoASTBinaryExpr(l.release(), r, GoLexer::OP_AMP_AMP));
+            else
+                return syntaxerror();
+        }
+        return l.release();
+    }
+    return nullptr;
+}
+
+GoASTExpr *
+GoParser::RelExpr()
+{
+    std::unique_ptr<GoASTExpr> l(AddExpr());
+    if (l)
+    {
+        for (GoLexer::Token *t; (t = match(GoLexer::OP_EQ_EQ)) || (t = match(GoLexer::OP_BANG_EQ)) ||
+                                (t = match(GoLexer::OP_LT)) || (t = match(GoLexer::OP_LT_EQ)) ||
+                                (t = match(GoLexer::OP_GT)) || (t = match(GoLexer::OP_GT_EQ));)
+        {
+            GoLexer::TokenType op = t->m_type;
+            GoASTExpr *r = AddExpr();
+            if (r)
+                l.reset(new GoASTBinaryExpr(l.release(), r, op));
+            else
+                return syntaxerror();
+        }
+        return l.release();
+    }
+    return nullptr;
+}
+
+GoASTExpr *
+GoParser::AddExpr()
+{
+    std::unique_ptr<GoASTExpr> l(MulExpr());
+    if (l)
+    {
+        for (GoLexer::Token *t; (t = match(GoLexer::OP_PLUS)) || (t = match(GoLexer::OP_MINUS)) ||
+                                (t = match(GoLexer::OP_PIPE)) || (t = match(GoLexer::OP_CARET));)
+        {
+            GoLexer::TokenType op = t->m_type;
+            GoASTExpr *r = MulExpr();
+            if (r)
+                l.reset(new GoASTBinaryExpr(l.release(), r, op));
+            else
+                return syntaxerror();
+        }
+        return l.release();
+    }
+    return nullptr;
+}
+
+GoASTExpr *
+GoParser::MulExpr()
+{
+    std::unique_ptr<GoASTExpr> l(UnaryExpr());
+    if (l)
+    {
+        for (GoLexer::Token *t; (t = match(GoLexer::OP_STAR)) || (t = match(GoLexer::OP_SLASH)) ||
+                                (t = match(GoLexer::OP_PERCENT)) || (t = match(GoLexer::OP_LSHIFT)) ||
+                                (t = match(GoLexer::OP_RSHIFT)) || (t = match(GoLexer::OP_AMP)) ||
+                                (t = match(GoLexer::OP_AMP_CARET));)
+        {
+            GoLexer::TokenType op = t->m_type;
+            GoASTExpr *r = UnaryExpr();
+            if (r)
+                l.reset(new GoASTBinaryExpr(l.release(), r, op));
+            else
+                return syntaxerror();
+        }
+        return l.release();
+    }
+    return nullptr;
+}
+
+GoASTExpr *
+GoParser::PrimaryExpr()
+{
+    GoASTExpr *l;
+    GoASTExpr *r;
+    (l = Conversion()) || (l = Operand());
+    if (!l)
+        return nullptr;
+    while ((r = Selector(l)) || (r = IndexOrSlice(l)) || (r = TypeAssertion(l)) || (r = Arguments(l)))
+    {
+        l = r;
+    }
+    return l;
+}
+
+GoASTExpr *
+GoParser::Operand()
+{
+    GoLexer::Token *lit;
+    if ((lit = match(GoLexer::LIT_INTEGER)) || (lit = match(GoLexer::LIT_FLOAT)) ||
+        (lit = match(GoLexer::LIT_IMAGINARY)) || (lit = match(GoLexer::LIT_RUNE)) || (lit = match(GoLexer::LIT_STRING)))
+        return new GoASTBasicLit(*lit);
+    if (match(GoLexer::OP_LPAREN))
+    {
+        GoASTExpr *e;
+        if (!((e = Expression()) && match(GoLexer::OP_RPAREN)))
+            return syntaxerror();
+        return e;
+    }
+    // MethodExpr should be handled by Selector
+    if (GoASTExpr *e = CompositeLit())
+        return e;
+    if (GoASTExpr *n = Name())
+        return n;
+    return FunctionLit();
+}
+
+GoASTExpr *
+GoParser::FunctionLit()
+{
+    if (!match(GoLexer::KEYWORD_FUNC))
+        return nullptr;
+    auto *sig = Signature();
+    if (!sig)
+        return syntaxerror();
+    auto *body = Block();
+    if (!body)
+    {
+        delete sig;
+        return syntaxerror();
+    }
+    return new GoASTFuncLit(sig, body);
+}
+
+GoASTBlockStmt *
+GoParser::Block()
+{
+    if (!match(GoLexer::OP_LBRACE))
+        return nullptr;
+    std::unique_ptr<GoASTBlockStmt> block(new GoASTBlockStmt);
+    for (auto *s = Statement(); s; s = Statement())
+        block->AddList(s);
+    if (!match(GoLexer::OP_RBRACE))
+        return syntaxerror();
+    return block.release();
+}
+
+GoASTExpr *
+GoParser::CompositeLit()
+{
+    Rule r("CompositeLit", this);
+    GoASTExpr *type;
+    (type = StructType()) || (type = ArrayOrSliceType(true)) || (type = MapType()) || (type = Name());
+    if (!type)
+        return r.error();
+    GoASTCompositeLit *lit = LiteralValue();
+    if (!lit)
+        return r.error();
+    lit->SetType(type);
+    return lit;
+}
+
+GoASTCompositeLit *
+GoParser::LiteralValue()
+{
+    if (!match(GoLexer::OP_LBRACE))
+        return nullptr;
+    std::unique_ptr<GoASTCompositeLit> lit(new GoASTCompositeLit);
+    for (GoASTExpr *e = Element(); e; e = Element())
+    {
+        lit->AddElts(e);
+        if (!match(GoLexer::OP_COMMA))
+            break;
+    }
+    if (!mustMatch(GoLexer::OP_RBRACE))
+        return nullptr;
+    return lit.release();
+}
+
+GoASTExpr *
+GoParser::Element()
+{
+    GoASTExpr *key;
+    if (!((key = Expression()) || (key = LiteralValue())))
+        return nullptr;
+    if (!match(GoLexer::OP_COLON))
+        return key;
+    GoASTExpr *value;
+    if ((value = Expression()) || (value = LiteralValue()))
+        return new GoASTKeyValueExpr(key, value);
+    delete key;
+    return syntaxerror();
+}
+
+GoASTExpr *
+GoParser::Selector(GoASTExpr *e)
+{
+    Rule r("Selector", this);
+    if (match(GoLexer::OP_DOT))
+    {
+        if (auto *name = Identifier())
+            return new GoASTSelectorExpr(e, name);
+    }
+    return r.error();
+}
+
+GoASTExpr *
+GoParser::IndexOrSlice(GoASTExpr *e)
+{
+    Rule r("IndexOrSlice", this);
+    if (match(GoLexer::OP_LBRACK))
+    {
+        std::unique_ptr<GoASTExpr> i1(Expression()), i2, i3;
+        bool slice = false;
+        if (match(GoLexer::OP_COLON))
+        {
+            slice = true;
+            i2.reset(Expression());
+            if (i2 && match(GoLexer::OP_COLON))
+            {
+                i3.reset(Expression());
+                if (!i3)
+                    return syntaxerror();
+            }
+        }
+        if (!(slice || i1))
+            return syntaxerror();
+        if (!mustMatch(GoLexer::OP_RBRACK))
+            return nullptr;
+        if (slice)
+        {
+            bool slice3 = i3.get();
+            return new GoASTSliceExpr(e, i1.release(), i2.release(), i3.release(), slice3);
+        }
+        return new GoASTIndexExpr(e, i1.release());
+    }
+    return r.error();
+}
+
+GoASTExpr *
+GoParser::TypeAssertion(GoASTExpr *e)
+{
+    Rule r("TypeAssertion", this);
+    if (match(GoLexer::OP_DOT) && match(GoLexer::OP_LPAREN))
+    {
+        if (auto *t = Type())
+        {
+            if (!mustMatch(GoLexer::OP_RPAREN))
+                return nullptr;
+            return new GoASTTypeAssertExpr(e, t);
+        }
+        return syntaxerror();
+    }
+    return r.error();
+}
+
+GoASTExpr *
+GoParser::Arguments(GoASTExpr *e)
+{
+    if (match(GoLexer::OP_LPAREN))
+    {
+        std::unique_ptr<GoASTCallExpr> call(new GoASTCallExpr(false));
+        GoASTExpr *arg;
+        // ( ExpressionList | Type [ "," ExpressionList ] )
+        for ((arg = Expression()) || (arg = Type()); arg; arg = MoreExpressionList())
+        {
+            call->AddArgs(arg);
+        }
+        if (match(GoLexer::OP_DOTS))
+            call->SetEllipsis(true);
+
+        // Eat trailing comma
+        match(GoLexer::OP_COMMA);
+
+        if (!mustMatch(GoLexer::OP_RPAREN))
+            return nullptr;
+        call->SetFun(e);
+        return call.release();
+    }
+    return nullptr;
+}
+
+GoASTExpr *
+GoParser::Conversion()
+{
+    Rule r("Conversion", this);
+    if (GoASTExpr *t = Type2())
+    {
+        if (match(GoLexer::OP_LPAREN))
+        {
+            GoASTExpr *v = Expression();
+            if (!v)
+                return syntaxerror();
+            match(GoLexer::OP_COMMA);
+            if (!mustMatch(GoLexer::OP_RPAREN))
+                return r.error();
+            GoASTCallExpr *call = new GoASTCallExpr(false);
+            call->SetFun(t);
+            call->AddArgs(v);
+            return call;
+        }
+    }
+    return r.error();
+}
+
+GoASTExpr *
+GoParser::Type2()
+{
+    switch (peek())
+    {
+        case GoLexer::OP_LBRACK:
+            return ArrayOrSliceType(false);
+        case GoLexer::KEYWORD_STRUCT:
+            return StructType();
+        case GoLexer::KEYWORD_FUNC:
+            return FunctionType();
+        case GoLexer::KEYWORD_INTERFACE:
+            return InterfaceType();
+        case GoLexer::KEYWORD_MAP:
+            return MapType();
+        case GoLexer::KEYWORD_CHAN:
+            return ChanType2();
+        default:
+            return nullptr;
+    }
+}
+
+GoASTExpr *
+GoParser::ArrayOrSliceType(bool allowEllipsis)
+{
+    Rule r("ArrayType", this);
+    if (match(GoLexer::OP_LBRACK))
+    {
+        std::unique_ptr<GoASTExpr> len;
+        if (allowEllipsis && match(GoLexer::OP_DOTS))
+        {
+            len.reset(new GoASTEllipsis(nullptr));
+        }
+        else
+        {
+            len.reset(Expression());
+        }
+
+        if (!match(GoLexer::OP_RBRACK))
+            return r.error();
+        GoASTExpr *elem = Type();
+        if (!elem)
+            return syntaxerror();
+        return new GoASTArrayType(len.release(), elem);
+    }
+    return r.error();
+}
+
+GoASTExpr *
+GoParser::StructType()
+{
+    if (!(match(GoLexer::KEYWORD_STRUCT) && mustMatch(GoLexer::OP_LBRACE)))
+        return nullptr;
+    std::unique_ptr<GoASTFieldList> fields(new GoASTFieldList);
+    while (auto *field = FieldDecl())
+        fields->AddList(field);
+    if (!mustMatch(GoLexer::OP_RBRACE))
+        return nullptr;
+    return new GoASTStructType(fields.release());
+}
+
+GoASTField *
+GoParser::FieldDecl()
+{
+    std::unique_ptr<GoASTField> f(new GoASTField);
+    GoASTExpr *t = FieldNamesAndType(f.get());
+    if (!t)
+        t = AnonymousFieldType();
+    if (!t)
+        return nullptr;
+
+    if (auto *tok = match(GoLexer::LIT_STRING))
+        f->SetTag(new GoASTBasicLit(*tok));
+    if (!Semicolon())
+        return syntaxerror();
+    return f.release();
+}
+
+GoASTExpr *
+GoParser::FieldNamesAndType(GoASTField *field)
+{
+    Rule r("FieldNames", this);
+    for (auto *id = Identifier(); id; id = MoreIdentifierList())
+        field->AddNames(id);
+    if (m_failed)
+        return nullptr;
+    GoASTExpr *t = Type();
+    if (t)
+        return t;
+    return r.error();
+}
+
+GoASTExpr *
+GoParser::AnonymousFieldType()
+{
+    bool pointer = match(GoLexer::OP_STAR);
+    GoASTExpr *t = Type();
+    if (!t)
+        return nullptr;
+    if (pointer)
+        return new GoASTStarExpr(t);
+    return t;
+}
+
+GoASTExpr *
+GoParser::FunctionType()
+{
+    if (!match(GoLexer::KEYWORD_FUNC))
+        return nullptr;
+    return Signature();
+}
+
+GoASTFuncType *
+GoParser::Signature()
+{
+    auto *params = Params();
+    if (!params)
+        return syntaxerror();
+    auto *result = Params();
+    if (!result)
+    {
+        if (auto *t = Type())
+        {
+            result = new GoASTFieldList;
+            auto *f = new GoASTField;
+            f->SetType(t);
+            result->AddList(f);
+        }
+    }
+    return new GoASTFuncType(params, result);
+}
+
+GoASTFieldList *
+GoParser::Params()
+{
+    if (!match(GoLexer::OP_LPAREN))
+        return nullptr;
+    std::unique_ptr<GoASTFieldList> l(new GoASTFieldList);
+    while (GoASTField *p = ParamDecl())
+    {
+        l->AddList(p);
+        if (!match(GoLexer::OP_COMMA))
+            break;
+    }
+    if (!mustMatch(GoLexer::OP_RPAREN))
+        return nullptr;
+    return l.release();
+}
+
+GoASTField *
+GoParser::ParamDecl()
+{
+    std::unique_ptr<GoASTField> field(new GoASTField);
+    GoASTIdent *id = Identifier();
+    if (id)
+    {
+        // Try `IdentifierList [ "..." ] Type`.
+        // If that fails, backtrack and try `[ "..." ] Type`.
+        Rule r("NamedParam", this);
+        for (; id; id = MoreIdentifierList())
+            field->AddNames(id);
+        GoASTExpr *t = ParamType();
+        if (t)
+        {
+            field->SetType(t);
+            return field.release();
+        }
+        field.reset(new GoASTField);
+        r.error();
+    }
+    GoASTExpr *t = ParamType();
+    if (t)
+    {
+        field->SetType(t);
+        return field.release();
+    }
+    return nullptr;
+}
+
+GoASTExpr *
+GoParser::ParamType()
+{
+    bool dots = match(GoLexer::OP_DOTS);
+    GoASTExpr *t = Type();
+    if (!dots)
+        return t;
+    if (!t)
+        return syntaxerror();
+    return new GoASTEllipsis(t);
+}
+
+GoASTExpr *
+GoParser::InterfaceType()
+{
+    if (!match(GoLexer::KEYWORD_INTERFACE) || !mustMatch(GoLexer::OP_LBRACE))
+        return nullptr;
+    std::unique_ptr<GoASTFieldList> methods(new GoASTFieldList);
+    while (true)
+    {
+        Rule r("MethodSpec", this);
+        // ( identifier Signature | TypeName ) ;
+        std::unique_ptr<GoASTIdent> id(Identifier());
+        if (!id)
+            break;
+        GoASTExpr *type = Signature();
+        if (!type)
+        {
+            r.error();
+            id.reset();
+            type = Name();
+        }
+        if (!Semicolon())
+            return syntaxerror();
+        auto *f = new GoASTField;
+        if (id)
+            f->AddNames(id.release());
+        f->SetType(type);
+        methods->AddList(f);
+    }
+    if (!mustMatch(GoLexer::OP_RBRACE))
+        return nullptr;
+    return new GoASTInterfaceType(methods.release());
+}
+
+GoASTExpr *
+GoParser::MapType()
+{
+    if (!(match(GoLexer::KEYWORD_MAP) && mustMatch(GoLexer::OP_LBRACK)))
+        return nullptr;
+    std::unique_ptr<GoASTExpr> key(Type());
+    if (!key)
+        return syntaxerror();
+    if (!mustMatch(GoLexer::OP_RBRACK))
+        return nullptr;
+    auto *elem = Type();
+    if (!elem)
+        return syntaxerror();
+    return new GoASTMapType(key.release(), elem);
+}
+
+GoASTExpr *
+GoParser::ChanType()
+{
+    Rule r("chan", this);
+    if (match(GoLexer::OP_LT_MINUS))
+    {
+        if (match(GoLexer::KEYWORD_CHAN))
+        {
+            auto *elem = Type();
+            if (!elem)
+                return syntaxerror();
+            return new GoASTChanType(GoASTNode::eChanRecv, elem);
+        }
+        return r.error();
+    }
+    return ChanType2();
+}
+
+GoASTExpr *
+GoParser::ChanType2()
+{
+    if (!match(GoLexer::KEYWORD_CHAN))
+        return nullptr;
+    auto dir = GoASTNode::eChanBidir;
+    if (match(GoLexer::OP_LT_MINUS))
+        dir = GoASTNode::eChanSend;
+    auto *elem = Type();
+    if (!elem)
+        return syntaxerror();
+    return new GoASTChanType(dir, elem);
+}
+
+GoASTExpr *
+GoParser::Type()
+{
+    if (GoASTExpr *t = Type2())
+        return t;
+    if (GoASTExpr *t = Name())
+        return t;
+    if (GoASTExpr *t = ChanType())
+        return t;
+    if (match(GoLexer::OP_STAR))
+    {
+        GoASTExpr *t = Type();
+        if (!t)
+            return syntaxerror();
+        return new GoASTStarExpr(t);
+    }
+    if (match(GoLexer::OP_LPAREN))
+    {
+        std::unique_ptr<GoASTExpr> t(Type());
+        if (!t || !match(GoLexer::OP_RPAREN))
+            return syntaxerror();
+        return t.release();
+    }
+    return nullptr;
+}
+
+bool
+GoParser::Semicolon()
+{
+    if (match(GoLexer::OP_SEMICOLON))
+        return true;
+    switch (peek())
+    {
+        case GoLexer::OP_RPAREN:
+        case GoLexer::OP_RBRACE:
+        case GoLexer::TOK_EOF:
+            return true;
+        default:
+            return false;
+    }
+}
+
+GoASTExpr *
+GoParser::Name()
+{
+    if (auto *id = Identifier())
+    {
+        if (GoASTExpr *qual = QualifiedIdent(id))
+            return qual;
+        return id;
+    }
+    return nullptr;
+}
+
+GoASTExpr *
+GoParser::QualifiedIdent(lldb_private::GoASTIdent *p)
+{
+    Rule r("QualifiedIdent", this);
+    llvm::SmallString<32> path(p->GetName().m_value);
+    GoLexer::Token *next;
+    bool have_slashes = false;
+    // LLDB extension: support full/package/path.name
+    while (match(GoLexer::OP_SLASH) && (next = match(GoLexer::TOK_IDENTIFIER)))
+    {
+        have_slashes = true;
+        path.append("/");
+        path.append(next->m_value);
+    }
+    if (match(GoLexer::OP_DOT))
+    {
+        auto *name = Identifier();
+        if (name)
+        {
+            if (have_slashes)
+            {
+                p->SetName(GoLexer::Token(GoLexer::TOK_IDENTIFIER, CopyString(path)));
+            }
+            return new GoASTSelectorExpr(p, name);
+        }
+    }
+    return r.error();
+}
+
+llvm::StringRef
+GoParser::CopyString(llvm::StringRef s)
+{
+    return m_strings.insert(std::make_pair(s, 'x')).first->getKey();
+}
+
+void
+GoParser::GetError(Error &error)
+{
+    llvm::StringRef want;
+    if (m_failed)
+        want = m_last_tok == GoLexer::TOK_INVALID ? DescribeToken(m_last_tok) : m_last;
+    else
+        want = m_error;
+    size_t len = m_lexer.BytesRemaining();
+    if (len > 10)
+        len = 10;
+    llvm::StringRef got;
+    if (len == 0)
+        got = "<eof>";
+    else
+        got = m_lexer.GetString(len);
+    error.SetErrorStringWithFormat("Syntax error: expected %s before '%s'.", want.str().c_str(), got.str().c_str());
+}
diff --git a/source/Plugins/ExpressionParser/Go/GoParser.h b/source/Plugins/ExpressionParser/Go/GoParser.h
new file mode 100644
index 0000000000000..9ceb670ccd117
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/GoParser.h
@@ -0,0 +1,165 @@
+//===-- GoParser.h -----------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_GoParser_h
+#define liblldb_GoParser_h
+
+#include "lldb/lldb-private.h"
+#include "Plugins/ExpressionParser/Go/GoAST.h"
+#include "Plugins/ExpressionParser/Go/GoLexer.h"
+
+namespace lldb_private
+{
+class GoParser
+{
+  public:
+    explicit GoParser(const char *src);
+
+    GoASTStmt *Statement();
+
+    GoASTStmt *GoStmt();
+    GoASTStmt *ReturnStmt();
+    GoASTStmt *BranchStmt();
+    GoASTStmt *EmptyStmt();
+    GoASTStmt *ExpressionStmt(GoASTExpr *e);
+    GoASTStmt *IncDecStmt(GoASTExpr *e);
+    GoASTStmt *Assignment(GoASTExpr *e);
+    GoASTBlockStmt *Block();
+
+    GoASTExpr *MoreExpressionList();  // ["," Expression]
+    GoASTIdent *MoreIdentifierList(); // ["," Identifier]
+
+    GoASTExpr *Expression();
+    GoASTExpr *UnaryExpr();
+    GoASTExpr *OrExpr();
+    GoASTExpr *AndExpr();
+    GoASTExpr *RelExpr();
+    GoASTExpr *AddExpr();
+    GoASTExpr *MulExpr();
+    GoASTExpr *PrimaryExpr();
+    GoASTExpr *Operand();
+    GoASTExpr *Conversion();
+
+    GoASTExpr *Selector(GoASTExpr *e);
+    GoASTExpr *IndexOrSlice(GoASTExpr *e);
+    GoASTExpr *TypeAssertion(GoASTExpr *e);
+    GoASTExpr *Arguments(GoASTExpr *e);
+
+    GoASTExpr *Type();
+    GoASTExpr *Type2();
+    GoASTExpr *ArrayOrSliceType(bool allowEllipsis);
+    GoASTExpr *StructType();
+    GoASTExpr *FunctionType();
+    GoASTExpr *InterfaceType();
+    GoASTExpr *MapType();
+    GoASTExpr *ChanType();
+    GoASTExpr *ChanType2();
+
+    GoASTExpr *Name();
+    GoASTExpr *QualifiedIdent(GoASTIdent *p);
+    GoASTIdent *Identifier();
+
+    GoASTField *FieldDecl();
+    GoASTExpr *AnonymousFieldType();
+    GoASTExpr *FieldNamesAndType(GoASTField *f);
+
+    GoASTFieldList *Params();
+    GoASTField *ParamDecl();
+    GoASTExpr *ParamType();
+    GoASTFuncType *Signature();
+    GoASTExpr *CompositeLit();
+    GoASTExpr *FunctionLit();
+    GoASTExpr *Element();
+    GoASTCompositeLit *LiteralValue();
+
+    bool
+    Failed() const
+    {
+        return m_failed;
+    }
+    bool
+    AtEOF() const
+    {
+        return m_lexer.BytesRemaining() == 0 && m_pos == m_tokens.size();
+    }
+
+    void GetError(Error &error);
+
+  private:
+    class Rule;
+    friend class Rule;
+
+    std::nullptr_t
+    syntaxerror()
+    {
+        m_failed = true;
+        return nullptr;
+    }
+    GoLexer::Token &
+    next()
+    {
+        if (m_pos >= m_tokens.size())
+        {
+            if (m_pos != 0 &&
+                (m_tokens.back().m_type == GoLexer::TOK_EOF || m_tokens.back().m_type == GoLexer::TOK_INVALID))
+                return m_tokens.back();
+            m_pos = m_tokens.size();
+            m_tokens.push_back(m_lexer.Lex());
+        }
+        return m_tokens[m_pos++];
+    }
+    GoLexer::TokenType
+    peek()
+    {
+        GoLexer::Token &tok = next();
+        --m_pos;
+        return tok.m_type;
+    }
+    GoLexer::Token *
+    match(GoLexer::TokenType t)
+    {
+        GoLexer::Token &tok = next();
+        if (tok.m_type == t)
+            return &tok;
+        --m_pos;
+        m_last_tok = t;
+        return nullptr;
+    }
+    GoLexer::Token *
+    mustMatch(GoLexer::TokenType t)
+    {
+        GoLexer::Token *tok = match(t);
+        if (tok)
+            return tok;
+        return syntaxerror();
+    }
+    bool Semicolon();
+
+    GoASTStmt *
+    FinishStmt(GoASTStmt *s)
+    {
+        if (!Semicolon())
+            m_failed = true;
+        return s;
+    }
+
+    llvm::StringRef CopyString(llvm::StringRef s);
+
+    GoLexer m_lexer;
+    std::vector<GoLexer::Token> m_tokens;
+    size_t m_pos;
+    llvm::StringRef m_error;
+    llvm::StringRef m_last;
+    GoLexer::TokenType m_last_tok;
+    llvm::StringMap<uint8_t> m_strings;
+    bool m_failed;
+};
+}
+
+#endif
diff --git a/source/Plugins/ExpressionParser/Go/GoUserExpression.cpp b/source/Plugins/ExpressionParser/Go/GoUserExpression.cpp
new file mode 100644
index 0000000000000..3f12a2b6255bb
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/GoUserExpression.cpp
@@ -0,0 +1,756 @@
+//===-- GoUserExpression.cpp ------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+#include <stdio.h>
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+// C++ Includes
+#include <cstdlib>
+#include <memory>
+#include <string>
+#include <vector>
+
+// Other libraries and framework includes
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/StringMap.h"
+
+// Project includes
+#include "GoUserExpression.h"
+
+#include "lldb/lldb-private.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/DataEncoder.h"
+#include "lldb/Core/DataExtractor.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/StreamFile.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/Core/ValueObjectRegister.h"
+#include "lldb/Expression/ExpressionVariable.h"
+#include "lldb/Symbol/TypeList.h"
+#include "lldb/Symbol/GoASTContext.h"
+#include "lldb/Symbol/VariableList.h"
+#include "lldb/Target/ExecutionContext.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/RegisterContext.h"
+#include "lldb/Target/StackFrame.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Target/ThreadPlan.h"
+#include "lldb/Target/ThreadPlanCallUserExpression.h"
+
+#include "Plugins/ExpressionParser/Go/GoAST.h"
+#include "Plugins/ExpressionParser/Go/GoParser.h"
+
+using namespace lldb_private;
+using namespace lldb;
+
+class GoUserExpression::GoInterpreter
+{
+  public:
+    GoInterpreter(ExecutionContext &exe_ctx, const char *expr)
+        : m_exe_ctx(exe_ctx), m_frame(exe_ctx.GetFrameSP()), m_parser(expr)
+    {
+        if (m_frame)
+        {
+            const SymbolContext &ctx = m_frame->GetSymbolContext(eSymbolContextFunction);
+            ConstString fname = ctx.GetFunctionName();
+            if (fname.GetLength() > 0)
+            {
+                size_t dot = fname.GetStringRef().find('.');
+                if (dot != llvm::StringRef::npos)
+                    m_package = llvm::StringRef(fname.AsCString(), dot);
+            }
+        }
+    }
+
+    void
+    set_use_dynamic(DynamicValueType use_dynamic)
+    {
+        m_use_dynamic = use_dynamic;
+    }
+
+    bool Parse();
+    lldb::ValueObjectSP Evaluate(ExecutionContext &exe_ctx);
+    lldb::ValueObjectSP EvaluateStatement(const GoASTStmt *s);
+    lldb::ValueObjectSP EvaluateExpr(const GoASTExpr *e);
+
+    ValueObjectSP
+    VisitBadExpr(const GoASTBadExpr *e)
+    {
+        m_parser.GetError(m_error);
+        return nullptr;
+    }
+
+    ValueObjectSP VisitParenExpr(const GoASTParenExpr *e);
+    ValueObjectSP VisitIdent(const GoASTIdent *e);
+    ValueObjectSP VisitStarExpr(const GoASTStarExpr *e);
+    ValueObjectSP VisitSelectorExpr(const GoASTSelectorExpr *e);
+    ValueObjectSP VisitBasicLit(const GoASTBasicLit *e);
+    ValueObjectSP VisitIndexExpr(const GoASTIndexExpr *e);
+    ValueObjectSP VisitUnaryExpr(const GoASTUnaryExpr *e);
+    ValueObjectSP VisitCallExpr(const GoASTCallExpr *e);
+
+    ValueObjectSP
+    VisitTypeAssertExpr(const GoASTTypeAssertExpr *e)
+    {
+        return NotImplemented(e);
+    }
+
+    ValueObjectSP
+    VisitBinaryExpr(const GoASTBinaryExpr *e)
+    {
+        return NotImplemented(e);
+    }
+
+    ValueObjectSP
+    VisitArrayType(const GoASTArrayType *e)
+    {
+        return NotImplemented(e);
+    }
+
+    ValueObjectSP
+    VisitChanType(const GoASTChanType *e)
+    {
+        return NotImplemented(e);
+    }
+
+    ValueObjectSP
+    VisitCompositeLit(const GoASTCompositeLit *e)
+    {
+        return NotImplemented(e);
+    }
+
+    ValueObjectSP
+    VisitEllipsis(const GoASTEllipsis *e)
+    {
+        return NotImplemented(e);
+    }
+
+    ValueObjectSP
+    VisitFuncType(const GoASTFuncType *e)
+    {
+        return NotImplemented(e);
+    }
+
+    ValueObjectSP
+    VisitFuncLit(const GoASTFuncLit *e)
+    {
+        return NotImplemented(e);
+    }
+
+    ValueObjectSP
+    VisitInterfaceType(const GoASTInterfaceType *e)
+    {
+        return NotImplemented(e);
+    }
+
+    ValueObjectSP
+    VisitKeyValueExpr(const GoASTKeyValueExpr *e)
+    {
+        return NotImplemented(e);
+    }
+
+    ValueObjectSP
+    VisitMapType(const GoASTMapType *e)
+    {
+        return NotImplemented(e);
+    }
+
+    ValueObjectSP
+    VisitSliceExpr(const GoASTSliceExpr *e)
+    {
+        return NotImplemented(e);
+    }
+
+    ValueObjectSP
+    VisitStructType(const GoASTStructType *e)
+    {
+        return NotImplemented(e);
+    }
+
+    CompilerType EvaluateType(const GoASTExpr *e);
+
+    Error &
+    error()
+    {
+        return m_error;
+    }
+
+  private:
+    std::nullptr_t
+    NotImplemented(const GoASTExpr *e)
+    {
+        m_error.SetErrorStringWithFormat("%s node not implemented", e->GetKindName());
+        return nullptr;
+    }
+
+    ExecutionContext m_exe_ctx;
+    lldb::StackFrameSP m_frame;
+    GoParser m_parser;
+    DynamicValueType m_use_dynamic;
+    Error m_error;
+    llvm::StringRef m_package;
+    std::vector<std::unique_ptr<GoASTStmt>> m_statements;
+};
+
+VariableSP
+FindGlobalVariable(TargetSP target, llvm::Twine name)
+{
+    ConstString fullname(name.str());
+    VariableList variable_list;
+    const bool append = true;
+    if (!target)
+    {
+        return nullptr;
+    }
+    const uint32_t match_count = target->GetImages().FindGlobalVariables(fullname, append, 1, variable_list);
+    if (match_count == 1)
+    {
+        return variable_list.GetVariableAtIndex(0);
+    }
+    return nullptr;
+}
+
+CompilerType
+LookupType(TargetSP target, ConstString name)
+{
+    if (!target)
+        return CompilerType();
+    SymbolContext sc;
+    TypeList type_list;
+    uint32_t num_matches = target->GetImages().FindTypes(sc, name, false, 2, type_list);
+    if (num_matches > 0)
+    {
+        return type_list.GetTypeAtIndex(0)->GetFullCompilerType();
+    }
+    return CompilerType();
+}
+
+GoUserExpression::GoUserExpression(ExecutionContextScope &exe_scope, const char *expr, const char *expr_prefix,
+                                   lldb::LanguageType language, ResultType desired_type,
+                                   const EvaluateExpressionOptions &options)
+    : UserExpression(exe_scope, expr, expr_prefix, language, desired_type, options)
+{
+}
+
+bool
+GoUserExpression::Parse(Stream &error_stream, ExecutionContext &exe_ctx, lldb_private::ExecutionPolicy execution_policy,
+                        bool keep_result_in_memory, bool generate_debug_info)
+{
+    InstallContext(exe_ctx);
+    m_interpreter.reset(new GoInterpreter(exe_ctx, GetUserText()));
+    if (m_interpreter->Parse())
+        return true;
+    const char *error_cstr = m_interpreter->error().AsCString();
+    if (error_cstr && error_cstr[0])
+        error_stream.Printf("error: %s\n", error_cstr);
+    else
+        error_stream.Printf("error: expression can't be interpreted or run\n");
+    return false;
+}
+
+lldb::ExpressionResults
+GoUserExpression::Execute(Stream &error_stream, ExecutionContext &exe_ctx, const EvaluateExpressionOptions &options,
+                          lldb::UserExpressionSP &shared_ptr_to_me, lldb::ExpressionVariableSP &result)
+{
+    Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_EXPRESSIONS | LIBLLDB_LOG_STEP));
+
+    lldb_private::ExecutionPolicy execution_policy = options.GetExecutionPolicy();
+    lldb::ExpressionResults execution_results = lldb::eExpressionSetupError;
+
+    Process *process = exe_ctx.GetProcessPtr();
+    Target *target = exe_ctx.GetTargetPtr();
+
+    if (target == nullptr || process == nullptr || process->GetState() != lldb::eStateStopped)
+    {
+        if (execution_policy == eExecutionPolicyAlways)
+        {
+            if (log)
+                log->Printf("== [GoUserExpression::Evaluate] Expression may not run, but is not constant ==");
+
+            error_stream.Printf("expression needed to run but couldn't");
+
+            return execution_results;
+        }
+    }
+
+    m_interpreter->set_use_dynamic(options.GetUseDynamic());
+    ValueObjectSP result_val_sp = m_interpreter->Evaluate(exe_ctx);
+    Error err = m_interpreter->error();
+    m_interpreter.reset();
+
+    if (!result_val_sp)
+    {
+        const char *error_cstr = err.AsCString();
+        if (error_cstr && error_cstr[0])
+            error_stream.Printf("error: %s\n", error_cstr);
+        else
+            error_stream.Printf("error: expression can't be interpreted or run\n");
+        return lldb::eExpressionDiscarded;
+    }
+    result.reset(new ExpressionVariable(ExpressionVariable::eKindGo));
+    result->m_live_sp = result->m_frozen_sp = result_val_sp;
+    result->m_flags |= ExpressionVariable::EVIsProgramReference;
+    PersistentExpressionState *pv = target->GetPersistentExpressionStateForLanguage(eLanguageTypeGo);
+    if (pv != nullptr)
+    {
+        result->SetName(pv->GetNextPersistentVariableName());
+        pv->AddVariable(result);
+    }
+    return lldb::eExpressionCompleted;
+}
+
+bool
+GoUserExpression::GoInterpreter::Parse()
+{
+    for (std::unique_ptr<GoASTStmt> stmt(m_parser.Statement()); stmt; stmt.reset(m_parser.Statement()))
+    {
+        if (m_parser.Failed())
+            break;
+        m_statements.emplace_back(std::move(stmt));
+    }
+    if (m_parser.Failed() || !m_parser.AtEOF())
+        m_parser.GetError(m_error);
+
+    return m_error.Success();
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::Evaluate(ExecutionContext &exe_ctx)
+{
+    m_exe_ctx = exe_ctx;
+    ValueObjectSP result;
+    for (const std::unique_ptr<GoASTStmt> &stmt : m_statements)
+    {
+        result = EvaluateStatement(stmt.get());
+        if (m_error.Fail())
+            return nullptr;
+    }
+    return result;
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::EvaluateStatement(const lldb_private::GoASTStmt *stmt)
+{
+    ValueObjectSP result;
+    switch (stmt->GetKind())
+    {
+        case GoASTNode::eBlockStmt:
+        {
+            const GoASTBlockStmt *block = llvm::cast<GoASTBlockStmt>(stmt);
+            for (size_t i = 0; i < block->NumList(); ++i)
+                result = EvaluateStatement(block->GetList(i));
+            break;
+        }
+        case GoASTNode::eBadStmt:
+            m_parser.GetError(m_error);
+            break;
+        case GoASTNode::eExprStmt:
+        {
+            const GoASTExprStmt *expr = llvm::cast<GoASTExprStmt>(stmt);
+            return EvaluateExpr(expr->GetX());
+        }
+        default:
+            m_error.SetErrorStringWithFormat("%s node not supported", stmt->GetKindName());
+    }
+    return result;
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::EvaluateExpr(const lldb_private::GoASTExpr *e)
+{
+    if (e)
+        return e->Visit<ValueObjectSP>(this);
+    return ValueObjectSP();
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitParenExpr(const lldb_private::GoASTParenExpr *e)
+{
+    return EvaluateExpr(e->GetX());
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitIdent(const GoASTIdent *e)
+{
+    ValueObjectSP val;
+    if (m_frame)
+    {
+        VariableSP var_sp;
+        std::string varname = e->GetName().m_value.str();
+        if (varname.size() > 1 && varname[0] == '$')
+        {
+            RegisterContextSP reg_ctx_sp = m_frame->GetRegisterContext();
+            const RegisterInfo *reg = reg_ctx_sp->GetRegisterInfoByName(varname.c_str() + 1);
+            if (reg)
+            {
+                std::string type;
+                switch (reg->encoding)
+                {
+                    case lldb::eEncodingSint:
+                        type.append("int");
+                        break;
+                    case lldb::eEncodingUint:
+                        type.append("uint");
+                        break;
+                    case lldb::eEncodingIEEE754:
+                        type.append("float");
+                        break;
+                    default:
+                        m_error.SetErrorString("Invaild register encoding");
+                        return nullptr;
+                }
+                switch (reg->byte_size)
+                {
+                    case 8:
+                        type.append("64");
+                        break;
+                    case 4:
+                        type.append("32");
+                        break;
+                    case 2:
+                        type.append("16");
+                        break;
+                    case 1:
+                        type.append("8");
+                        break;
+                    default:
+                        m_error.SetErrorString("Invaild register size");
+                        return nullptr;
+                }
+                ValueObjectSP regVal =
+                    ValueObjectRegister::Create(m_frame.get(), reg_ctx_sp, reg->kinds[eRegisterKindLLDB]);
+                CompilerType goType = LookupType(m_frame->CalculateTarget(), ConstString(type));
+                if (regVal)
+                {
+                    regVal = regVal->Cast(goType);
+                    return regVal;
+                }
+            }
+            m_error.SetErrorString("Invaild register name");
+            return nullptr;
+        }
+        VariableListSP var_list_sp(m_frame->GetInScopeVariableList(false));
+        if (var_list_sp)
+        {
+            var_sp = var_list_sp->FindVariable(ConstString(varname));
+            if (var_sp)
+                val = m_frame->GetValueObjectForFrameVariable(var_sp, m_use_dynamic);
+            else
+            {
+                // When a variable is on the heap instead of the stack, go records a variable
+                // '&x' instead of 'x'.
+                var_sp = var_list_sp->FindVariable(ConstString("&" + varname));
+                if (var_sp)
+                {
+                    val = m_frame->GetValueObjectForFrameVariable(var_sp, m_use_dynamic);
+                    if (val)
+                        val = val->Dereference(m_error);
+                    if (m_error.Fail())
+                        return nullptr;
+                }
+            }
+        }
+        if (!val)
+        {
+            m_error.Clear();
+            TargetSP target = m_frame->CalculateTarget();
+            if (!target)
+            {
+                m_error.SetErrorString("No target");
+                return nullptr;
+            }
+            var_sp = FindGlobalVariable(target, m_package + "." + e->GetName().m_value);
+            if (var_sp)
+                return m_frame->TrackGlobalVariable(var_sp, m_use_dynamic);
+        }
+    }
+    if (!val)
+        m_error.SetErrorStringWithFormat("Unknown variable %s", e->GetName().m_value.str().c_str());
+    return val;
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitStarExpr(const GoASTStarExpr *e)
+{
+    ValueObjectSP target = EvaluateExpr(e->GetX());
+    if (!target)
+        return nullptr;
+    return target->Dereference(m_error);
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitSelectorExpr(const lldb_private::GoASTSelectorExpr *e)
+{
+    ValueObjectSP target = EvaluateExpr(e->GetX());
+    if (target)
+    {
+        if (target->GetCompilerType().IsPointerType())
+        {
+            target = target->Dereference(m_error);
+            if (m_error.Fail())
+                return nullptr;
+        }
+        ConstString field(e->GetSel()->GetName().m_value);
+        ValueObjectSP result = target->GetChildMemberWithName(field, true);
+        if (!result)
+            m_error.SetErrorStringWithFormat("Unknown child %s", field.AsCString());
+        return result;
+    }
+    if (const GoASTIdent *package = llvm::dyn_cast<GoASTIdent>(e->GetX()))
+    {
+        if (VariableSP global = FindGlobalVariable(m_exe_ctx.GetTargetSP(),
+                                                   package->GetName().m_value + "." + e->GetSel()->GetName().m_value))
+        {
+            if (m_frame)
+            {
+                m_error.Clear();
+                return m_frame->GetValueObjectForFrameVariable(global, m_use_dynamic);
+            }
+        }
+    }
+    if (const GoASTBasicLit *packageLit = llvm::dyn_cast<GoASTBasicLit>(e->GetX()))
+    {
+        if (packageLit->GetValue().m_type == GoLexer::LIT_STRING)
+        {
+            std::string value = packageLit->GetValue().m_value.str();
+            value = value.substr(1, value.size() - 2);
+            if (VariableSP global =
+                    FindGlobalVariable(m_exe_ctx.GetTargetSP(), value + "." + e->GetSel()->GetName().m_value))
+            {
+                if (m_frame)
+                {
+                    m_error.Clear();
+                    return m_frame->TrackGlobalVariable(global, m_use_dynamic);
+                }
+            }
+        }
+    }
+    // EvaluateExpr should have already set m_error.
+    return target;
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitBasicLit(const lldb_private::GoASTBasicLit *e)
+{
+    std::string value = e->GetValue().m_value.str();
+    if (e->GetValue().m_type != GoLexer::LIT_INTEGER)
+    {
+        m_error.SetErrorStringWithFormat("Unsupported literal %s", value.c_str());
+        return nullptr;
+    }
+    errno = 0;
+    int64_t intvalue = strtol(value.c_str(), nullptr, 0);
+    if (errno != 0)
+    {
+        m_error.SetErrorToErrno();
+        return nullptr;
+    }
+    DataBufferSP buf(new DataBufferHeap(sizeof(intvalue), 0));
+    TargetSP target = m_exe_ctx.GetTargetSP();
+    if (!target)
+    {
+        m_error.SetErrorString("No target");
+        return nullptr;
+    }
+    ByteOrder order = target->GetArchitecture().GetByteOrder();
+    uint8_t addr_size = target->GetArchitecture().GetAddressByteSize();
+    DataEncoder enc(buf, order, addr_size);
+    enc.PutU64(0, static_cast<uint64_t>(intvalue));
+    DataExtractor data(buf, order, addr_size);
+
+    CompilerType type = LookupType(target, ConstString("int64"));
+    return ValueObject::CreateValueObjectFromData(nullptr, data, m_exe_ctx, type);
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitIndexExpr(const lldb_private::GoASTIndexExpr *e)
+{
+    ValueObjectSP target = EvaluateExpr(e->GetX());
+    if (!target)
+        return nullptr;
+    ValueObjectSP index = EvaluateExpr(e->GetIndex());
+    if (!index)
+        return nullptr;
+    bool is_signed;
+    if (!index->GetCompilerType().IsIntegerType(is_signed))
+    {
+        m_error.SetErrorString("Unsupported index");
+        return nullptr;
+    }
+    size_t idx;
+    if (is_signed)
+        idx = index->GetValueAsSigned(0);
+    else
+        idx = index->GetValueAsUnsigned(0);
+    if (GoASTContext::IsGoSlice(target->GetCompilerType()))
+    {
+        target = target->GetStaticValue();
+        ValueObjectSP cap = target->GetChildMemberWithName(ConstString("cap"), true);
+        if (cap)
+        {
+            uint64_t capval = cap->GetValueAsUnsigned(0);
+            if (idx >= capval)
+            {
+                m_error.SetErrorStringWithFormat("Invalid index %" PRIu64 " , cap = %" PRIu64, uint64_t(idx), capval);
+                return nullptr;
+            }
+        }
+        target = target->GetChildMemberWithName(ConstString("array"), true);
+        if (target && m_use_dynamic != eNoDynamicValues)
+        {
+            ValueObjectSP dynamic = target->GetDynamicValue(m_use_dynamic);
+            if (dynamic)
+                target = dynamic;
+        }
+        if (!target)
+            return nullptr;
+        return target->GetSyntheticArrayMember(idx, true);
+    }
+    return target->GetChildAtIndex(idx, true);
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitUnaryExpr(const GoASTUnaryExpr *e)
+{
+    ValueObjectSP x = EvaluateExpr(e->GetX());
+    if (!x)
+        return nullptr;
+    switch (e->GetOp())
+    {
+        case GoLexer::OP_AMP:
+        {
+            CompilerType type = x->GetCompilerType().GetPointerType();
+            uint64_t address = x->GetAddressOf();
+            return ValueObject::CreateValueObjectFromAddress(nullptr, address, m_exe_ctx, type);
+        }
+        case GoLexer::OP_PLUS:
+            return x;
+        default:
+            m_error.SetErrorStringWithFormat("Operator %s not supported",
+                                             GoLexer::LookupToken(e->GetOp()).str().c_str());
+            return nullptr;
+    }
+}
+
+CompilerType
+GoUserExpression::GoInterpreter::EvaluateType(const GoASTExpr *e)
+{
+    TargetSP target = m_exe_ctx.GetTargetSP();
+    if (auto *id = llvm::dyn_cast<GoASTIdent>(e))
+    {
+        CompilerType result = LookupType(target, ConstString(id->GetName().m_value));
+        if (result.IsValid())
+            return result;
+        std::string fullname = (m_package + "." + id->GetName().m_value).str();
+        result = LookupType(target, ConstString(fullname));
+        if (!result)
+            m_error.SetErrorStringWithFormat("Unknown type %s", fullname.c_str());
+        return result;
+    }
+    if (auto *sel = llvm::dyn_cast<GoASTSelectorExpr>(e))
+    {
+        std::string package;
+        if (auto *pkg_node = llvm::dyn_cast<GoASTIdent>(sel->GetX()))
+        {
+            package = pkg_node->GetName().m_value.str();
+        }
+        else if (auto *str_node = llvm::dyn_cast<GoASTBasicLit>(sel->GetX()))
+        {
+            if (str_node->GetValue().m_type == GoLexer::LIT_STRING)
+            {
+                package = str_node->GetValue().m_value.substr(1).str();
+                package.resize(package.length() - 1);
+            }
+        }
+        if (package.empty())
+        {
+            m_error.SetErrorStringWithFormat("Invalid %s in type expression", sel->GetX()->GetKindName());
+            return CompilerType();
+        }
+        std::string fullname = (package + "." + sel->GetSel()->GetName().m_value).str();
+        CompilerType result = LookupType(target, ConstString(fullname));
+        if (!result)
+            m_error.SetErrorStringWithFormat("Unknown type %s", fullname.c_str());
+        return result;
+    }
+    if (auto *star = llvm::dyn_cast<GoASTStarExpr>(e))
+    {
+        CompilerType elem = EvaluateType(star->GetX());
+        return elem.GetPointerType();
+    }
+    if (auto *paren = llvm::dyn_cast<GoASTParenExpr>(e))
+        return EvaluateType(paren->GetX());
+    if (auto *array = llvm::dyn_cast<GoASTArrayType>(e))
+    {
+        CompilerType elem = EvaluateType(array->GetElt());
+    }
+
+    m_error.SetErrorStringWithFormat("Invalid %s in type expression", e->GetKindName());
+    return CompilerType();
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitCallExpr(const lldb_private::GoASTCallExpr *e)
+{
+    ValueObjectSP x = EvaluateExpr(e->GetFun());
+    if (x || e->NumArgs() != 1)
+    {
+        m_error.SetErrorStringWithFormat("Code execution not supported");
+        return nullptr;
+    }
+    m_error.Clear();
+    CompilerType type = EvaluateType(e->GetFun());
+    if (!type)
+    {
+        return nullptr;
+    }
+    ValueObjectSP value = EvaluateExpr(e->GetArgs(0));
+    if (!value)
+        return nullptr;
+    // TODO: Handle special conversions
+    return value->Cast(type);
+}
+
+GoPersistentExpressionState::GoPersistentExpressionState() : PersistentExpressionState(eKindGo)
+{
+}
+
+ConstString
+GoPersistentExpressionState::GetNextPersistentVariableName()
+{
+    char name_cstr[256];
+    // We can't use the same variable format as clang.
+    ::snprintf(name_cstr, sizeof(name_cstr), "$go%u", m_next_persistent_variable_id++);
+    ConstString name(name_cstr);
+    return name;
+}
+
+void
+GoPersistentExpressionState::RemovePersistentVariable(lldb::ExpressionVariableSP variable)
+{
+    RemoveVariable(variable);
+
+    const char *name = variable->GetName().AsCString();
+
+    if (*(name++) != '$')
+        return;
+    if (*(name++) != 'g')
+        return;
+    if (*(name++) != 'o')
+        return;
+
+    if (strtoul(name, nullptr, 0) == m_next_persistent_variable_id - 1)
+        m_next_persistent_variable_id--;
+}
diff --git a/source/Plugins/ExpressionParser/Go/GoUserExpression.h b/source/Plugins/ExpressionParser/Go/GoUserExpression.h
new file mode 100644
index 0000000000000..b429c68f023d5
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/GoUserExpression.h
@@ -0,0 +1,98 @@
+//===-- GoUserExpression.h --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_GoUserExpression_h_
+#define liblldb_GoUserExpression_h_
+
+// C Includes
+// C++ Includes
+#include <memory>
+
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-forward.h"
+#include "lldb/lldb-private.h"
+#include "lldb/Expression/UserExpression.h"
+#include "lldb/Expression/ExpressionVariable.h"
+#include "lldb/Target/ExecutionContext.h"
+
+namespace lldb_private
+{
+class GoParser;
+
+class GoPersistentExpressionState : public PersistentExpressionState
+{
+  public:
+    GoPersistentExpressionState();
+
+    ConstString GetNextPersistentVariableName() override;
+
+    void RemovePersistentVariable(lldb::ExpressionVariableSP variable) override;
+
+    lldb::addr_t
+    LookupSymbol(const ConstString &name) override
+    {
+        return LLDB_INVALID_ADDRESS;
+    }
+
+    static bool
+    classof(const PersistentExpressionState *pv)
+    {
+        return pv->getKind() == PersistentExpressionState::eKindGo;
+    }
+
+  private:
+    uint32_t m_next_persistent_variable_id; ///< The counter used by GetNextResultName().
+};
+
+//----------------------------------------------------------------------
+/// @class GoUserExpression GoUserExpression.h "lldb/Expression/GoUserExpression.h"
+/// @brief Encapsulates a single expression for use with Go
+///
+/// LLDB uses expressions for various purposes, notably to call functions
+/// and as a backend for the expr command.  GoUserExpression encapsulates
+/// the objects needed to parse and interpret an expression.
+//----------------------------------------------------------------------
+class GoUserExpression : public UserExpression
+{
+  public:
+    GoUserExpression(ExecutionContextScope &exe_scope, const char *expr, const char *expr_prefix,
+                     lldb::LanguageType language, ResultType desired_type, const EvaluateExpressionOptions &options);
+
+    bool
+    Parse(Stream &error_stream, ExecutionContext &exe_ctx, lldb_private::ExecutionPolicy execution_policy,
+          bool keep_result_in_memory, bool generate_debug_info) override;
+
+    lldb::ExpressionResults
+    Execute(Stream &error_stream, ExecutionContext &exe_ctx,
+            const EvaluateExpressionOptions &options,
+            lldb::UserExpressionSP &shared_ptr_to_me,
+            lldb::ExpressionVariableSP &result) override;
+
+    bool
+    CanInterpret() override
+    {
+        return true;
+    }
+    bool
+    FinalizeJITExecution(Stream &error_stream, ExecutionContext &exe_ctx, lldb::ExpressionVariableSP &result,
+                         lldb::addr_t function_stack_bottom = LLDB_INVALID_ADDRESS,
+                         lldb::addr_t function_stack_top = LLDB_INVALID_ADDRESS) override
+    {
+        return true;
+    }
+
+  private:
+    class GoInterpreter;
+    std::unique_ptr<GoInterpreter> m_interpreter;
+};
+
+} // namespace lldb_private
+
+#endif // liblldb_GoUserExpression_h_
diff --git a/source/Plugins/ExpressionParser/Go/gen_go_ast.py b/source/Plugins/ExpressionParser/Go/gen_go_ast.py
new file mode 100644
index 0000000000000..05b589a9976cb
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/gen_go_ast.py
@@ -0,0 +1,356 @@
+import StringIO
+
+def addNodes():
+    addNode("ArrayType", "Expr", "len", "Expr", "elt", "Expr")
+    addNode("AssignStmt", "Stmt", "lhs", "[]Expr", "rhs", "[]Expr", "define", "bool")
+    addNode("BadDecl", "Decl")
+    addNode("BadExpr", "Expr")
+    addNode("BadStmt", "Stmt")
+    addNode("BasicLit", "Expr", "value", "Token")
+    addNode("BinaryExpr", "Expr", "x", "Expr", "y", "Expr", "op", "TokenType")
+    addNode("BlockStmt", "Stmt", "list", "[]Stmt")
+    addNode("Ident", "Expr", "name", "Token")
+    addNode("BranchStmt", "Stmt", "label", "Ident", "tok", "TokenType")
+    addNode("CallExpr", "Expr", "fun", "Expr", "args", "[]Expr", "ellipsis", "bool")
+    addNode("CaseClause", "Stmt", "list", "[]Expr", "body", "[]Stmt")
+    addNode("ChanType", "Expr", "dir", "ChanDir", "value", "Expr")
+    addNode("CommClause", "Stmt", "comm", "Stmt", "body", "[]Stmt")
+    addNode("CompositeLit", "Expr", "type", "Expr", "elts", "[]Expr")
+    addNode("DeclStmt", "Stmt", "decl", "Decl")
+    addNode("DeferStmt", "Stmt", "call", "CallExpr")
+    addNode("Ellipsis", "Expr", "elt", "Expr")
+    addNode("EmptyStmt", "Stmt")
+    addNode("ExprStmt", "Stmt", "x", "Expr")
+    addNode("Field", "Node", "names", "[]Ident", "type", "Expr", "tag", "BasicLit")
+    addNode("FieldList", "Node", "list", "[]Field")
+    addNode("ForStmt", "Stmt", "init", "Stmt", "cond", "Expr", "post", "Stmt", "body", "BlockStmt")
+    addNode("FuncType", "Expr", "params", "FieldList", "results", "FieldList")
+    addNode("FuncDecl", "Decl", "recv", "FieldList", "name", "Ident", "type", "FuncType", "body", "BlockStmt")
+    addNode("FuncLit", "Expr", "type", "FuncType", "body", "BlockStmt")
+    addNode("GenDecl", "Decl", "tok", "TokenType", "specs", "[]Spec")
+    addNode("GoStmt", "Stmt", "call", "CallExpr")
+    addNode("IfStmt", "Stmt", "init", "Stmt", "cond", "Expr", "body", "BlockStmt", "els", "Stmt")
+    addNode("ImportSpec", "Spec", "name", "Ident", "path", "BasicLit")
+    addNode("IncDecStmt", "Stmt", "x", "Expr", "tok", "TokenType")
+    addNode("IndexExpr", "Expr", "x", "Expr", "index", "Expr")
+    addNode("InterfaceType", "Expr", "methods", "FieldList")
+    addNode("KeyValueExpr", "Expr", "key", "Expr", "value", "Expr")
+    addNode("LabeledStmt", "Stmt", "label", "Ident", "stmt", "Stmt")
+    addNode("MapType", "Expr", "key", "Expr", "value", "Expr")
+    addNode("ParenExpr", "Expr", "x", "Expr")
+    addNode("RangeStmt", "Stmt", "key", "Expr", "value", "Expr", "define", "bool", "x", "Expr", "body", "BlockStmt")
+    addNode("ReturnStmt", "Stmt", "results", "[]Expr")
+    addNode("SelectStmt", "Stmt", "body", "BlockStmt")
+    addNode("SelectorExpr", "Expr", "x", "Expr", "sel", "Ident")
+    addNode("SendStmt", "Stmt", "chan", "Expr", "value", "Expr")
+    addNode("SliceExpr", "Expr", "x", "Expr", "low", "Expr", "high", "Expr", "max", "Expr", "slice3", "bool")
+    addNode("StarExpr", "Expr", "x", "Expr")
+    addNode("StructType", "Expr", "fields", "FieldList")
+    addNode("SwitchStmt", "Stmt", "init", "Stmt", "tag", "Expr", "body", "BlockStmt")
+    addNode("TypeAssertExpr", "Expr", "x", "Expr", "type", "Expr")
+    addNode("TypeSpec", "Spec", "name", "Ident", "type", "Expr")
+    addNode("TypeSwitchStmt", "Stmt", "init", "Stmt", "assign", "Stmt", "body", "BlockStmt")
+    addNode("UnaryExpr", "Expr", "op", "TokenType", "x", "Expr")
+    addNode("ValueSpec", "Spec", "names", "[]Ident", "type", "Expr", "values", "[]Expr")
+    addParent("Decl", "Node")
+    addParent("Expr", "Node")
+    addParent("Spec", "Node")
+    addParent("Stmt", "Node")
+
+
+class Member(object):
+    def __init__(self, name, typename):
+        self.title = name.title()
+        self.sname = name
+        self.mname = 'm_' + name
+        self.is_list = typename.startswith("[]")
+        self.is_value = isValueType(typename)
+        if self.is_value:
+            self.argtype = typename
+            self.mtype = typename
+        elif self.is_list:
+            self.argtype = 'GoAST' + typename[2:]
+            self.mtype = 'std::vector<std::unique_ptr<%s> >' % self.argtype
+        else:
+            self.argtype = 'GoAST' + typename
+            self.mtype = 'std::unique_ptr<%s>' % self.argtype
+            self.mname = self.mname + '_up'
+    
+
+kinds = {}
+parentClasses = StringIO.StringIO()
+childClasses = StringIO.StringIO()
+walker = StringIO.StringIO()
+
+def startClass(name, parent, out):
+    out.write("""
+class GoAST%s : public GoAST%s
+{
+  public:
+""" % (name, parent))
+
+def endClass(name, out):
+    out.write("""
+    %(name)s(const %(name)s &) = delete;
+    const %(name)s &operator=(const %(name)s &) = delete;
+};
+""" % {'name': 'GoAST' + name})
+
+def addNode(name, parent, *children):
+    startClass(name, parent, childClasses)
+    l = kinds.setdefault(parent, [])
+    l.append(name)
+    children = createMembers(name, children)
+    addConstructor(name, parent, children)
+    childClasses.write("""
+    const char *
+    GetKindName() const override
+    {
+        return "%(name)s";
+    }
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() == e%(name)s;
+    }
+    """ % {'name':name})
+    addChildren(name, children)
+    endClass(name, childClasses)
+
+def isValueType(typename):
+    if typename[0].islower():
+        return True
+    if typename[0].isupper():
+        return typename.startswith('Token') or typename == 'ChanDir'
+    return False
+
+
+def createMembers(name, children):
+    l = len(children)
+    if (l % 2) != 0:
+        raise Exception("Invalid children for %s: %s" % (name, children))
+    return [Member(children[i], children[i + 1]) for i in xrange(0, l, 2)]
+
+
+def addConstructor(name, parent, children):
+    for c in children:
+        if c.is_list:
+            children = [x for x in children if x.is_value]
+            break
+    childClasses.write('    ')
+    if len(children) == 1:
+        childClasses.write('explicit ')
+    childClasses.write('GoAST%s(' % name)
+    for i in xrange(len(children)):
+        if i > 0:
+            childClasses.write(', ')
+
+        c = children[i]
+        if c.is_value:
+            childClasses.write(c.argtype)
+            childClasses.write(' ')
+        else:
+            childClasses.write('%s *' % c.argtype)
+        childClasses.write(c.sname)
+    childClasses.write(') : GoAST%s(e%s)' % (parent, name))
+    for c in children:
+        childClasses.write(', ')
+        childClasses.write('%(mname)s(%(sname)s)' % c.__dict__)
+    childClasses.write(""" {}
+    ~GoAST%s() override = default;
+""" % name)
+
+    
+def addChildren(name, children):
+    if len(children) == 0:
+        return
+    walker.write("""
+    case e%(n)s:
+        {
+            GoAST%(n)s *n = llvm::cast<GoAST%(n)s>(this);
+            (void)n;""" % {'n':name})
+    for c in children:
+        if c.is_list:
+            childClasses.write("""
+    size_t
+    Num%(title)s() const
+    {
+        return %(mname)s.size();
+    }
+    const %(argtype)s *
+    Get%(title)s(int i) const
+    {
+        return %(mname)s[i].get();
+    }
+    void
+    Add%(title)s(%(argtype)s *%(sname)s)
+    {
+        %(mname)s.push_back(std::unique_ptr<%(argtype)s>(%(sname)s));
+    }
+""" % c.__dict__)
+            walker.write("""
+            for (auto& e : n->%s) { v(e.get()); }""" % c.mname)
+        else:
+            const = ''
+            get = ''
+            set = ''
+            t = c.argtype
+            if isValueType(t):
+                set = '%(mname)s = %(sname)s' % c.__dict__
+                t = t + ' '
+            else:
+                t = t + ' *'
+                const = 'const '
+                get = '.get()'
+                set = '%(mname)s.reset(%(sname)s)' % c.__dict__
+                walker.write("""
+            v(n->%s.get());""" % c.mname)
+            childClasses.write("""
+    %(const)s%(type)s
+    Get%(title)s() const
+    {
+        return %(mname)s%(get)s;
+    }
+    void
+    Set%(title)s(%(type)s%(sname)s)
+    {
+        %(set)s;
+    }
+""" % {'const':const, 'title': c.title, 'sname': c.sname, 'get': get, 'set': set, 'type': t, 'mname': c.mname})
+    childClasses.write('\n  private:\n    friend class GoASTNode;\n')
+    walker.write("""
+            return;
+        }""")
+    for c in children:
+        childClasses.write('    %s %s;\n' %(c.mtype, c.mname))
+    
+
+def addParent(name, parent):
+    startClass(name, parent, parentClasses)
+    l = kinds[name]
+    minName = l[0]
+    maxName = l[-1]
+    parentClasses.write("""    template <typename R, typename V> R Visit(V *v) const;
+
+    static bool
+    classof(const GoASTNode *n)
+    {
+        return n->GetKind() >= e%s && n->GetKind() <= e%s;
+    }
+
+  protected:
+    explicit GoAST%s(NodeKind kind) : GoASTNode(kind) { }
+  private:
+""" % (minName, maxName, name))
+    endClass(name, parentClasses)
+    
+addNodes()
+
+print """//===-- GoAST.h -------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// DO NOT EDIT.
+// Generated by gen_go_ast.py
+
+#ifndef liblldb_GoAST_h
+#define liblldb_GoAST_h
+
+#include "lldb/lldb-forward.h"
+#include "lldb/lldb-private.h"
+#include "llvm/Support/Casting.h"
+#include "Plugins/ExpressionParser/Go/GoLexer.h"
+
+namespace lldb_private
+{
+
+class GoASTNode
+{
+  public:
+    typedef GoLexer::TokenType TokenType;
+    typedef GoLexer::Token Token;
+    enum ChanDir
+    {
+        eChanBidir,
+        eChanSend,
+        eChanRecv,
+    };
+    enum NodeKind
+    {"""
+for l in kinds.itervalues():
+    for x in l:
+        print "        e%s," % x
+print """    };
+
+    virtual ~GoASTNode() = default;
+
+    NodeKind
+    GetKind() const
+    {
+        return m_kind;
+    }
+
+    virtual const char *GetKindName() const = 0;
+
+    template <typename V> void WalkChildren(V &v);
+
+  protected:
+    explicit GoASTNode(NodeKind kind) : m_kind(kind) { }
+
+  private:
+    const NodeKind m_kind;
+    
+    GoASTNode(const GoASTNode &) = delete;
+    const GoASTNode &operator=(const GoASTNode &) = delete;
+};
+"""
+
+
+print parentClasses.getvalue()
+print childClasses.getvalue()
+
+for k, l in kinds.iteritems():
+    if k == 'Node':
+        continue
+    print """
+template <typename R, typename V>
+R GoAST%s::Visit(V* v) const
+{
+    switch(GetKind())
+    {""" % k
+    for subtype in l:
+        print """    case e%(n)s:
+        return v->Visit%(n)s(llvm::cast<const GoAST%(n)s>(this));""" % {'n':subtype}
+
+    print """    default:
+        assert(false && "Invalid kind");
+    }
+}"""
+
+print """
+template <typename V>
+void GoASTNode::WalkChildren(V &v)
+{
+    switch (m_kind)
+    {
+"""
+print walker.getvalue()
+print"""
+        case eEmptyStmt:
+        case eBadDecl:
+        case eBadExpr:
+        case eBadStmt:
+          break;
+    }
+}
+
+}  // namespace lldb_private
+
+#endif
+"""
diff --git a/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp b/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
index 95ae549e0e4b3..d646d4d4754a1 100644
--- a/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
+++ b/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
@@ -290,9 +290,8 @@ EmulateInstructionARM::GetRegisterInfo (lldb::RegisterKind reg_kind, uint32_t re
 uint32_t
 EmulateInstructionARM::GetFramePointerRegisterNumber () const
 {
-    if (m_arch.GetTriple().getEnvironment() == llvm::Triple::Android)
+    if (m_arch.GetTriple().isAndroid())
         return LLDB_INVALID_REGNUM; // Don't use frame pointer on android
-
     bool is_apple = false;
     if (m_arch.GetTriple().getVendor() == llvm::Triple::Apple)
         is_apple = true;
@@ -301,6 +300,8 @@ EmulateInstructionARM::GetFramePointerRegisterNumber () const
             case llvm::Triple::Darwin:
             case llvm::Triple::MacOSX:
             case llvm::Triple::IOS:
+            case llvm::Triple::TvOS:
+            case llvm::Triple::WatchOS:
                 is_apple = true;
                 break;
             default:
@@ -387,9 +388,8 @@ EmulateInstructionARM::EmulatePUSH (const uint32_t opcode, const ARMEncoding enc
     }
 #endif
 
-    bool conditional = false;
     bool success = false;
-    if (ConditionPassed(opcode, &conditional))
+    if (ConditionPassed(opcode))
     {
         const uint32_t addr_byte_size = GetAddressByteSize();
         const addr_t sp = ReadCoreReg (SP_REG, &success);
@@ -442,10 +442,7 @@ EmulateInstructionARM::EmulatePUSH (const uint32_t opcode, const ARMEncoding enc
         uint32_t i;
         
         EmulateInstruction::Context context;
-        if (conditional)
-            context.type = EmulateInstruction::eContextRegisterStore;
-        else
-            context.type = EmulateInstruction::eContextPushRegisterOnStack;
+        context.type = EmulateInstruction::eContextPushRegisterOnStack;
         RegisterInfo reg_info;
         RegisterInfo sp_reg;
         GetRegisterInfo (eRegisterKindDWARF, dwarf_sp, sp_reg);
@@ -511,8 +508,7 @@ EmulateInstructionARM::EmulatePOP (const uint32_t opcode, const ARMEncoding enco
 
     bool success = false;
 
-    bool conditional = false;
-    if (ConditionPassed(opcode, &conditional))
+    if (ConditionPassed(opcode))
     {
         const uint32_t addr_byte_size = GetAddressByteSize();
         const addr_t sp = ReadCoreReg (SP_REG, &success);
@@ -574,10 +570,7 @@ EmulateInstructionARM::EmulatePOP (const uint32_t opcode, const ARMEncoding enco
         uint32_t i, data;
         
         EmulateInstruction::Context context;
-        if (conditional)
-            context.type = EmulateInstruction::eContextRegisterLoad;
-        else
-            context.type = EmulateInstruction::eContextPopRegisterOffStack;
+        context.type = EmulateInstruction::eContextPopRegisterOffStack;
         
         RegisterInfo sp_reg;
         GetRegisterInfo (eRegisterKindDWARF, dwarf_sp, sp_reg);
@@ -586,7 +579,7 @@ EmulateInstructionARM::EmulatePOP (const uint32_t opcode, const ARMEncoding enco
         {
             if (BitIsSet (registers, i))
             {
-                context.SetRegisterPlusOffset (sp_reg, addr - sp);
+                context.SetAddress(addr);
                 data = MemARead(context, addr, 4, 0, &success);
                 if (!success)
                     return false;    
@@ -900,12 +893,12 @@ EmulateInstructionARM::EmulateMOVRdImm (const uint32_t opcode, const ARMEncoding
                 break;
                   
             case eEncodingA1:
-                // d = UInt(Rd); setflags = (S == Ô1Õ); (imm32, carry) = ARMExpandImm_C(imm12, APSR.C);
+                // d = UInt(Rd); setflags = (S == '1'); (imm32, carry) = ARMExpandImm_C(imm12, APSR.C);
                 Rd = Bits32 (opcode, 15, 12);
                 setflags = BitIsSet (opcode, 20);
                 imm32 = ARMExpandImm_C (opcode, APSR_C, carry);
 
-                // if Rd == Ô1111Õ && S == Ô1Õ then SEE SUBS PC, LR and related instructions;
+                // if Rd == '1111' && S == '1' then SEE SUBS PC, LR and related instructions;
                 if ((Rd == 15) && setflags)
                     return EmulateSUBSPcLrEtc (opcode, encoding);
                   
@@ -1971,9 +1964,8 @@ EmulateInstructionARM::EmulateSTRRtSP (const uint32_t opcode, const ARMEncoding
     }
 #endif
 
-    bool conditional = false;
     bool success = false;
-    if (ConditionPassed(opcode, &conditional))
+    if (ConditionPassed(opcode))
     {
         const uint32_t addr_byte_size = GetAddressByteSize();
         const addr_t sp = ReadCoreReg (SP_REG, &success);
@@ -2018,10 +2010,7 @@ EmulateInstructionARM::EmulateSTRRtSP (const uint32_t opcode, const ARMEncoding
             addr = sp;
         
         EmulateInstruction::Context context;
-        if (conditional)
-            context.type = EmulateInstruction::eContextRegisterStore;
-        else
-            context.type = EmulateInstruction::eContextPushRegisterOnStack;
+        context.type = EmulateInstruction::eContextPushRegisterOnStack;
         RegisterInfo sp_reg;
         RegisterInfo dwarf_reg;
 
@@ -2082,8 +2071,7 @@ EmulateInstructionARM::EmulateVPUSH (const uint32_t opcode, const ARMEncoding en
 #endif
 
     bool success = false;
-    bool conditional = false;
-    if (ConditionPassed(opcode, &conditional))
+    if (ConditionPassed(opcode))
     {
         const uint32_t addr_byte_size = GetAddressByteSize();
         const addr_t sp = ReadCoreReg (SP_REG, &success);
@@ -2125,10 +2113,8 @@ EmulateInstructionARM::EmulateVPUSH (const uint32_t opcode, const ARMEncoding en
         uint32_t i;
         
         EmulateInstruction::Context context;
-        if (conditional)
-            context.type = EmulateInstruction::eContextRegisterStore;
-        else
-            context.type = EmulateInstruction::eContextPushRegisterOnStack;
+        context.type = EmulateInstruction::eContextPushRegisterOnStack;
+
         RegisterInfo dwarf_reg;
         RegisterInfo sp_reg;
         GetRegisterInfo (eRegisterKindDWARF, dwarf_sp, sp_reg);
@@ -2178,8 +2164,7 @@ EmulateInstructionARM::EmulateVPOP (const uint32_t opcode, const ARMEncoding enc
 #endif
 
     bool success = false;
-    bool conditional = false;
-    if (ConditionPassed(opcode, &conditional))
+    if (ConditionPassed(opcode))
     {
         const uint32_t addr_byte_size = GetAddressByteSize();
         const addr_t sp = ReadCoreReg (SP_REG, &success);
@@ -2222,17 +2207,15 @@ EmulateInstructionARM::EmulateVPOP (const uint32_t opcode, const ARMEncoding enc
         uint64_t data; // uint64_t to accommodate 64-bit registers.
         
         EmulateInstruction::Context context;
-        if (conditional)
-            context.type = EmulateInstruction::eContextRegisterLoad;
-        else
-            context.type = EmulateInstruction::eContextPopRegisterOffStack;
+        context.type = EmulateInstruction::eContextPopRegisterOffStack;
+
         RegisterInfo dwarf_reg;
         RegisterInfo sp_reg;
         GetRegisterInfo (eRegisterKindDWARF, dwarf_sp, sp_reg);
         for (i=0; i<regs; ++i)
         {
             GetRegisterInfo (eRegisterKindDWARF, start_reg + d + i, dwarf_reg);
-            context.SetRegisterPlusOffset (sp_reg, addr - sp);
+            context.SetAddress(addr);
             data = MemARead(context, addr, reg_byte_size, 0, &success);
             if (!success)
                 return false;    
@@ -3462,8 +3445,7 @@ EmulateInstructionARM::EmulateLDM (const uint32_t opcode, const ARMEncoding enco
 #endif
             
     bool success = false;
-    bool conditional = false;
-    if (ConditionPassed(opcode, &conditional))
+    if (ConditionPassed(opcode))
     {
         uint32_t n;
         uint32_t registers = 0;
@@ -3536,10 +3518,8 @@ EmulateInstructionARM::EmulateLDM (const uint32_t opcode, const ARMEncoding enco
                 context.SetRegisterPlusOffset (dwarf_reg, offset);
                 if (wback && (n == 13)) // Pop Instruction
                 {
-                    if (conditional)
-                        context.type = EmulateInstruction::eContextRegisterLoad;
-                    else
-                        context.type = EmulateInstruction::eContextPopRegisterOffStack;
+                    context.type = EmulateInstruction::eContextPopRegisterOffStack;
+                    context.SetAddress(base_address + offset);
                 }
 
                 // R[i] = MemA [address, 4]; address = address + 4;
@@ -4459,7 +4439,7 @@ EmulateInstructionARM::EmulateSTMDB (const uint32_t opcode, const ARMEncoding en
                 break;
                   
             case eEncodingA1:
-                // if W == '1' && Rn == '1101Õ && BitCount(register_list) >= 2 then SEE PUSH; 
+                // if W == '1' && Rn == '1101' && BitCount(register_list) >= 2 then SEE PUSH; 
                 if (BitIsSet (opcode, 21) && (Bits32 (opcode, 19, 16) == 13) && BitCount (Bits32 (opcode, 15, 0)) >= 2)
                 {
                     // See Push
@@ -4801,7 +4781,11 @@ EmulateInstructionARM::EmulateSTRThumb (const uint32_t opcode, const ARMEncoding
             address = base_address;
                   
         EmulateInstruction::Context context;
-        context.type = eContextRegisterStore;
+        if (n == 13)
+            context.type = eContextPushRegisterOnStack;
+        else
+            context.type = eContextRegisterStore;
+
         RegisterInfo base_reg;
         GetRegisterInfo (eRegisterKindDWARF, dwarf_r0 + n, base_reg);
                   
@@ -4829,8 +4813,12 @@ EmulateInstructionARM::EmulateSTRThumb (const uint32_t opcode, const ARMEncoding
         // if wback then R[n] = offset_addr;
         if (wback)
         {
-            context.type = eContextRegisterLoad;
+            if (n == 13)
+                context.type = eContextAdjustStackPointer;
+            else
+                context.type = eContextAdjustBaseRegister;
             context.SetAddress (offset_addr);
+
             if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_r0 + n, offset_addr))
                 return false;
         }
@@ -9579,7 +9567,7 @@ EmulateInstructionARM::EmulateSUBSPReg (const uint32_t opcode, const ARMEncoding
     if ConditionPassed() then
         EncodingSpecificOperations();
         shifted = Shift(R[m], shift_t, shift_n, APSR.C);
-        (result, carry, overflow) = AddWithCarry(SP, NOT(shifted), Ô1Õ);
+        (result, carry, overflow) = AddWithCarry(SP, NOT(shifted), '1');
         if d == 15 then // Can only occur for ARM encoding
             ALUWritePC(result); // setflags is always FALSE here
         else
@@ -9604,7 +9592,7 @@ EmulateInstructionARM::EmulateSUBSPReg (const uint32_t opcode, const ARMEncoding
         switch (encoding)
         {
             case eEncodingT1:
-                // d = UInt(Rd); m = UInt(Rm); setflags = (S == Ô1Õ);
+                // d = UInt(Rd); m = UInt(Rm); setflags = (S == '1');
                 d = Bits32 (opcode, 11, 8);
                 m = Bits32 (opcode, 3, 0);
                 setflags = BitIsSet (opcode, 20);
@@ -9622,12 +9610,12 @@ EmulateInstructionARM::EmulateSUBSPReg (const uint32_t opcode, const ARMEncoding
                 break;
 
             case eEncodingA1:
-                // d = UInt(Rd); m = UInt(Rm); setflags = (S == Ô1Õ);
+                // d = UInt(Rd); m = UInt(Rm); setflags = (S == '1');
                 d = Bits32 (opcode, 15, 12);
                 m = Bits32 (opcode, 3, 0);
                 setflags = BitIsSet (opcode, 20);
                 
-                // if Rd == Ô1111Õ && S == Ô1Õ then SEE SUBS PC, LR and related instructions;
+                // if Rd == '1111' && S == '1' then SEE SUBS PC, LR and related instructions;
                 if (d == 15 && setflags)
                     EmulateSUBSPcLrEtc (opcode, encoding);
 
@@ -9648,7 +9636,7 @@ EmulateInstructionARM::EmulateSUBSPReg (const uint32_t opcode, const ARMEncoding
         if (!success)
             return false;
 
-        // (result, carry, overflow) = AddWithCarry(SP, NOT(shifted), Ô1Õ);
+        // (result, carry, overflow) = AddWithCarry(SP, NOT(shifted), '1');
         uint32_t sp_val = ReadCoreReg (SP_REG, &success);
         if (!success)
             return false;
@@ -9679,7 +9667,7 @@ EmulateInstructionARM::EmulateADDRegShift (const uint32_t opcode, const ARMEncod
         EncodingSpecificOperations();
         shift_n = UInt(R[s]<7:0>);
         shifted = Shift(R[m], shift_t, shift_n, APSR.C);
-        (result, carry, overflow) = AddWithCarry(R[n], shifted, Ô0Õ);
+        (result, carry, overflow) = AddWithCarry(R[n], shifted, '0');
         R[d] = result;
         if setflags then
             APSR.N = result<31>;
@@ -9708,7 +9696,7 @@ EmulateInstructionARM::EmulateADDRegShift (const uint32_t opcode, const ARMEncod
                 m = Bits32 (opcode, 3, 0);
                 s = Bits32 (opcode, 11, 8);
                   
-                // setflags = (S == Ô1Õ); shift_t = DecodeRegShift(type);
+                // setflags = (S == '1'); shift_t = DecodeRegShift(type);
                 setflags = BitIsSet (opcode, 20);
                 shift_t = DecodeRegShift (Bits32 (opcode, 6, 5));
                   
@@ -9737,7 +9725,7 @@ EmulateInstructionARM::EmulateADDRegShift (const uint32_t opcode, const ARMEncod
         if (!success)
             return false;
 
-        // (result, carry, overflow) = AddWithCarry(R[n], shifted, Ô0Õ);
+        // (result, carry, overflow) = AddWithCarry(R[n], shifted, '0');
         uint32_t Rn = ReadCoreReg (n, &success);
         if (!success)
             return false;
@@ -9776,7 +9764,7 @@ EmulateInstructionARM::EmulateSUBReg (const uint32_t opcode, const ARMEncoding e
     if ConditionPassed() then
         EncodingSpecificOperations();
         shifted = Shift(R[m], shift_t, shift_n, APSR.C);
-        (result, carry, overflow) = AddWithCarry(R[n], NOT(shifted), Ô1Õ);
+        (result, carry, overflow) = AddWithCarry(R[n], NOT(shifted), '1');
         if d == 15 then // Can only occur for ARM encoding
             ALUWritePC(result); // setflags is always FALSE here
         else
@@ -9839,14 +9827,14 @@ EmulateInstructionARM::EmulateSUBReg (const uint32_t opcode, const ARMEncoding e
                 break;
                   
             case eEncodingA1:
-                // if Rn == Ô1101Õ then SEE SUB (SP minus register);
-                // d = UInt(Rd); n = UInt(Rn); m = UInt(Rm); setflags = (S == Ô1Õ);
+                // if Rn == '1101' then SEE SUB (SP minus register);
+                // d = UInt(Rd); n = UInt(Rn); m = UInt(Rm); setflags = (S == '1');
                 d = Bits32 (opcode, 15, 12);
                 n = Bits32 (opcode, 19, 16);
                 m = Bits32 (opcode, 3, 0);
                 setflags = BitIsSet (opcode, 20);
                 
-                // if Rd == Ô1111Õ && S == Ô1Õ then SEE SUBS PC, LR and related instructions;
+                // if Rd == '1111' && S == '1' then SEE SUBS PC, LR and related instructions;
                 if ((d == 15) && setflags)
                     EmulateSUBSPcLrEtc (opcode, encoding);
                   
@@ -9868,7 +9856,7 @@ EmulateInstructionARM::EmulateSUBReg (const uint32_t opcode, const ARMEncoding e
         if (!success)
             return false;
                   
-        // (result, carry, overflow) = AddWithCarry(R[n], NOT(shifted), Ô1Õ);
+        // (result, carry, overflow) = AddWithCarry(R[n], NOT(shifted), '1');
         uint32_t Rn = ReadCoreReg (n, &success);
         if (!success)
             return false;
@@ -9929,7 +9917,7 @@ EmulateInstructionARM::EmulateSTREX (const uint32_t opcode, const ARMEncoding en
         switch (encoding)
         {
             case eEncodingT1:
-                // d = UInt(Rd); t = UInt(Rt); n = UInt(Rn); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+                // d = UInt(Rd); t = UInt(Rt); n = UInt(Rn); imm32 = ZeroExtend(imm8:'00', 32);
                 d = Bits32 (opcode, 11, 8);
                 t = Bits32 (opcode, 15, 12);
                 n = Bits32 (opcode, 19, 16);
@@ -10037,13 +10025,13 @@ EmulateInstructionARM::EmulateSTRBImmARM (const uint32_t opcode, const ARMEncodi
         switch (encoding)
         {
             case eEncodingA1:
-                // if P == Ô0Õ && W == Ô1Õ then SEE STRBT;
+                // if P == '0' && W == '1' then SEE STRBT;
                 // t = UInt(Rt); n = UInt(Rn); imm32 = ZeroExtend(imm12, 32);
                 t = Bits32 (opcode, 15, 12);
                 n = Bits32 (opcode, 19, 16);
                 imm32 = Bits32 (opcode, 11, 0);
                   
-                // index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (P == Ô0Õ) || (W == Ô1Õ);
+                // index = (P == '1'); add = (U == '1'); wback = (P == '0') || (W == '1');
                 index = BitIsSet (opcode, 24);
                 add = BitIsSet (opcode, 23);
                 wback = BitIsClear (opcode, 24) || BitIsSet (opcode, 21);
@@ -10135,14 +10123,14 @@ EmulateInstructionARM::EmulateSTRImmARM (const uint32_t opcode, const ARMEncodin
         switch (encoding)
         {
             case eEncodingA1:
-                // if P == Ô0Õ && W == Ô1Õ then SEE STRT;
-                // if Rn == Ô1101Õ && P == Ô1Õ && U == Ô0Õ && W == Ô1Õ && imm12 == Ô000000000100Õ then SEE PUSH;
+                // if P == '0' && W == '1' then SEE STRT;
+                // if Rn == '1101' && P == '1' && U == '0' && W == '1' && imm12 == '000000000100' then SEE PUSH;
                 // t = UInt(Rt); n = UInt(Rn); imm32 = ZeroExtend(imm12, 32);
                 t = Bits32 (opcode, 15, 12);
                 n = Bits32 (opcode, 19, 16);
                 imm32 = Bits32 (opcode, 11, 0);
                   
-                // index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (P == Ô0Õ) || (W == Ô1Õ);
+                // index = (P == '1'); add = (U == '1'); wback = (P == '0') || (W == '1');
                 index = BitIsSet (opcode, 24);
                 add = BitIsSet (opcode, 23);
                 wback = BitIsClear (opcode, 24) || BitIsSet (opcode, 21);
@@ -10247,15 +10235,15 @@ EmulateInstructionARM::EmulateLDRDImmediate (const uint32_t opcode, const ARMEnc
         switch (encoding)
         {
             case eEncodingT1:
-                //if P == Ô0Õ && W == Ô0Õ then SEE ÒRelated encodingsÓ;
-                //if Rn == Ô1111Õ then SEE LDRD (literal);
-                //t = UInt(Rt); t2 = UInt(Rt2); n = UInt(Rn); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+                //if P == '0' && W == '0' then SEE 'Related encodings';
+                //if Rn == '1111' then SEE LDRD (literal);
+                //t = UInt(Rt); t2 = UInt(Rt2); n = UInt(Rn); imm32 = ZeroExtend(imm8:'00', 32);
                 t = Bits32 (opcode, 15, 12);
                 t2 = Bits32 (opcode, 11, 8);
                 n = Bits32 (opcode, 19, 16);
                 imm32 = Bits32 (opcode, 7, 0) << 2;
                   
-                //index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (W == Ô1Õ);
+                //index = (P == '1'); add = (U == '1'); wback = (W == '1');
                 index = BitIsSet (opcode, 24);
                 add = BitIsSet (opcode, 23);
                 wback = BitIsSet (opcode, 21);
@@ -10271,8 +10259,8 @@ EmulateInstructionARM::EmulateLDRDImmediate (const uint32_t opcode, const ARMEnc
                 break;
                   
             case eEncodingA1:
-                //if Rn == Ô1111Õ then SEE LDRD (literal);
-                //if Rt<0> == Ô1Õ then UNPREDICTABLE;
+                //if Rn == '1111' then SEE LDRD (literal);
+                //if Rt<0> == '1' then UNPREDICTABLE;
                 //t = UInt(Rt); t2 = t+1; n = UInt(Rn); imm32 = ZeroExtend(imm4H:imm4L, 32);
                 t = Bits32 (opcode, 15, 12);
                 if (BitIsSet (t, 0))
@@ -10281,12 +10269,12 @@ EmulateInstructionARM::EmulateLDRDImmediate (const uint32_t opcode, const ARMEnc
                 n = Bits32 (opcode, 19, 16);
                 imm32 = (Bits32 (opcode, 11, 8) << 4) | Bits32 (opcode, 3, 0);
                   
-                //index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (P == Ô0Õ) || (W == Ô1Õ);
+                //index = (P == '1'); add = (U == '1'); wback = (P == '0') || (W == '1');
                 index = BitIsSet (opcode, 24);
                 add = BitIsSet (opcode, 23);
                 wback = BitIsClear (opcode, 24) || BitIsSet (opcode, 21);
                   
-                //if P == Ô0Õ && W == Ô1Õ then UNPREDICTABLE;
+                //if P == '0' && W == '1' then UNPREDICTABLE;
                 if (BitIsClear (opcode, 24) && BitIsSet (opcode, 21))
                     return false;
                   
@@ -10327,8 +10315,11 @@ EmulateInstructionARM::EmulateLDRDImmediate (const uint32_t opcode, const ARMEnc
         GetRegisterInfo (eRegisterKindDWARF, dwarf_r0 + n, base_reg);
                   
         EmulateInstruction::Context context;
-        context.type = eContextRegisterLoad;
-        context.SetRegisterPlusOffset (base_reg, address - Rn);
+        if (n == 13)
+            context.type = eContextPopRegisterOffStack;
+        else
+            context.type = eContextRegisterLoad;
+        context.SetAddress(address);
                   
         const uint32_t addr_byte_size = GetAddressByteSize();
         uint32_t data = MemARead (context, address, addr_byte_size, 0, &success);
@@ -10339,8 +10330,7 @@ EmulateInstructionARM::EmulateLDRDImmediate (const uint32_t opcode, const ARMEnc
             return false;
                   
         //R[t2] = MemA[address+4,4];
-                  
-        context.SetRegisterPlusOffset (base_reg, (address + 4) - Rn);
+        context.SetAddress(address + 4);
         data = MemARead (context, address + 4, addr_byte_size, 0, &success);
         if (!success)
             return false;
@@ -10392,7 +10382,7 @@ EmulateInstructionARM::EmulateLDRDRegister (const uint32_t opcode, const ARMEnco
         switch (encoding)
         {
             case eEncodingA1:
-                // if Rt<0> == Ô1Õ then UNPREDICTABLE;
+                // if Rt<0> == '1' then UNPREDICTABLE;
                 // t = UInt(Rt); t2 = t+1; n = UInt(Rn); m = UInt(Rm);
                 t = Bits32 (opcode, 15, 12);
                 if (BitIsSet (t, 0))
@@ -10401,12 +10391,12 @@ EmulateInstructionARM::EmulateLDRDRegister (const uint32_t opcode, const ARMEnco
                 n = Bits32 (opcode, 19, 16);
                 m = Bits32 (opcode, 3, 0);
                   
-                // index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (P == Ô0Õ) || (W == Ô1Õ);
+                // index = (P == '1'); add = (U == '1'); wback = (P == '0') || (W == '1');
                 index = BitIsSet (opcode, 24);
                 add = BitIsSet (opcode, 23);
                 wback = BitIsClear (opcode, 24) || BitIsSet (opcode, 21);
                   
-                // if P == Ô0Õ && W == Ô1Õ then UNPREDICTABLE;
+                // if P == '0' && W == '1' then UNPREDICTABLE;
                   if (BitIsClear (opcode, 24) && BitIsSet (opcode, 21))
                   return false;
                   
@@ -10454,8 +10444,11 @@ EmulateInstructionARM::EmulateLDRDRegister (const uint32_t opcode, const ARMEnco
             address = Rn;
                   
         EmulateInstruction::Context context;
-        context.type = eContextRegisterLoad;
-        context.SetRegisterPlusIndirectOffset (base_reg, offset_reg);
+        if (n == 13)
+            context.type = eContextPopRegisterOffStack;
+        else
+            context.type = eContextRegisterLoad;
+        context.SetAddress(address);
                   
         // R[t] = MemA[address,4];
         const uint32_t addr_byte_size = GetAddressByteSize();
@@ -10519,14 +10512,14 @@ EmulateInstructionARM::EmulateSTRDImm (const uint32_t opcode, const ARMEncoding
         switch (encoding)
         {
             case eEncodingT1:
-                // if P == Ô0Õ && W == Ô0Õ then SEE ÒRelated encodingsÓ;
-                // t = UInt(Rt); t2 = UInt(Rt2); n = UInt(Rn); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+                // if P == '0' && W == '0' then SEE 'Related encodings';
+                // t = UInt(Rt); t2 = UInt(Rt2); n = UInt(Rn); imm32 = ZeroExtend(imm8:'00', 32);
                 t = Bits32 (opcode, 15, 12);
                 t2 = Bits32 (opcode, 11, 8);
                 n = Bits32 (opcode, 19, 16);
                 imm32 = Bits32 (opcode, 7, 0) << 2;
                   
-                // index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (W == Ô1Õ);
+                // index = (P == '1'); add = (U == '1'); wback = (W == '1');
                 index = BitIsSet (opcode, 24);
                 add = BitIsSet (opcode, 23);
                 wback = BitIsSet (opcode, 21);
@@ -10542,7 +10535,7 @@ EmulateInstructionARM::EmulateSTRDImm (const uint32_t opcode, const ARMEncoding
                 break;
                   
             case eEncodingA1:
-                // if Rt<0> == Ô1Õ then UNPREDICTABLE;
+                // if Rt<0> == '1' then UNPREDICTABLE;
                 // t = UInt(Rt); t2 = t+1; n = UInt(Rn); imm32 = ZeroExtend(imm4H:imm4L, 32);
                 t = Bits32 (opcode, 15, 12);
                 if (BitIsSet (t, 0))
@@ -10552,12 +10545,12 @@ EmulateInstructionARM::EmulateSTRDImm (const uint32_t opcode, const ARMEncoding
                 n = Bits32 (opcode, 19, 16);
                 imm32 = (Bits32 (opcode, 11, 8) << 4) | Bits32 (opcode, 3, 0);
                   
-                // index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (P == Ô0Õ) || (W == Ô1Õ);
+                // index = (P == '1'); add = (U == '1'); wback = (P == '0') || (W == '1');
                 index = BitIsSet (opcode, 24);
                 add = BitIsSet (opcode, 23);
                 wback = BitIsClear (opcode, 24) || BitIsSet (opcode, 21);
                   
-                // if P == Ô0Õ && W == Ô1Õ then UNPREDICTABLE;
+                // if P == '0' && W == '1' then UNPREDICTABLE;
                 if (BitIsClear (opcode, 24) && BitIsSet (opcode, 21))
                     return false;
                   
@@ -10605,7 +10598,10 @@ EmulateInstructionARM::EmulateSTRDImm (const uint32_t opcode, const ARMEncoding
             return false;
                   
         EmulateInstruction::Context context;
-        context.type = eContextRegisterStore;
+        if (n == 13)
+            context.type = eContextPushRegisterOnStack;
+        else
+            context.type = eContextRegisterStore;
         context.SetRegisterToRegisterPlusOffset (data_reg, base_reg, address - Rn);
                   
         const uint32_t addr_byte_size = GetAddressByteSize();
@@ -10627,9 +10623,12 @@ EmulateInstructionARM::EmulateSTRDImm (const uint32_t opcode, const ARMEncoding
         //if wback then R[n] = offset_addr;
         if (wback)
         {
-            context.type = eContextAdjustBaseRegister;
+            if (n == 13)
+                context.type = eContextAdjustStackPointer;
+            else
+                context.type = eContextAdjustBaseRegister;
             context.SetAddress (offset_addr);
-                  
+
             if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_r0 + n, offset_addr))
                 return false;
         }
@@ -10667,7 +10666,7 @@ EmulateInstructionARM::EmulateSTRDReg (const uint32_t opcode, const ARMEncoding
         switch (encoding)
         {
             case eEncodingA1:
-                // if Rt<0> == Ô1Õ then UNPREDICTABLE;
+                // if Rt<0> == '1' then UNPREDICTABLE;
                 // t = UInt(Rt); t2 = t+1; n = UInt(Rn); m = UInt(Rm);
                 t = Bits32 (opcode, 15, 12);
                 if (BitIsSet (t, 0))
@@ -10677,12 +10676,12 @@ EmulateInstructionARM::EmulateSTRDReg (const uint32_t opcode, const ARMEncoding
                 n = Bits32 (opcode, 19, 16);
                 m = Bits32 (opcode, 3, 0);
                   
-                // index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (P == Ô0Õ) || (W == Ô1Õ);
+                // index = (P == '1'); add = (U == '1'); wback = (P == '0') || (W == '1');
                 index = BitIsSet (opcode, 24);
                 add = BitIsSet (opcode, 23);
                 wback = BitIsClear (opcode, 24) || BitIsSet (opcode, 21);
                   
-                // if P == Ô0Õ && W == Ô1Õ then UNPREDICTABLE;
+                // if P == '0' && W == '1' then UNPREDICTABLE;
                 if (BitIsClear (opcode, 24) && BitIsSet (opcode, 21))
                    return false;
                   
@@ -10737,7 +10736,11 @@ EmulateInstructionARM::EmulateSTRDReg (const uint32_t opcode, const ARMEncoding
             return false;
                   
         EmulateInstruction::Context context;
-        context.type = eContextRegisterStore;
+        if (t == 13)
+            context.type = eContextPushRegisterOnStack;
+        else
+            context.type = eContextRegisterStore;
+        
         GetRegisterInfo (eRegisterKindDWARF, dwarf_r0 + t, data_reg);
         context.SetRegisterToRegisterPlusIndirectOffset (base_reg, offset_reg, data_reg);
                   
@@ -10808,25 +10811,25 @@ EmulateInstructionARM::EmulateVLDM (const uint32_t opcode, const ARMEncoding enc
         {
             case eEncodingT1:
             case eEncodingA1:
-                // if P == Ô0Õ && U == Ô0Õ && W == Ô0Õ then SEE ÒRelated encodingsÓ;
-                // if P == Ô0Õ && U == Ô1Õ && W == Ô1Õ && Rn == Ô1101Õ then SEE VPOP;
-                // if P == Ô1Õ && W == Ô0Õ then SEE VLDR;
-                // if P == U && W == Ô1Õ then UNDEFINED;
+                // if P == '0' && U == '0' && W == '0' then SEE 'Related encodings';
+                // if P == '0' && U == '1' && W == '1' && Rn == '1101' then SEE VPOP;
+                // if P == '1' && W == '0' then SEE VLDR;
+                // if P == U && W == '1' then UNDEFINED;
                 if ((Bit32 (opcode, 24) == Bit32 (opcode, 23)) && BitIsSet (opcode, 21))
                     return false;
                                            
                 // // Remaining combinations are PUW = 010 (IA without !), 011 (IA with !), 101 (DB with !)
-                // single_regs = FALSE; add = (U == Ô1Õ); wback = (W == Ô1Õ);
+                // single_regs = FALSE; add = (U == '1'); wback = (W == '1');
                 single_regs = false;
                 add = BitIsSet (opcode, 23);
                 wback = BitIsSet (opcode, 21);
                                            
-                // d = UInt(D:Vd); n = UInt(Rn); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+                // d = UInt(D:Vd); n = UInt(Rn); imm32 = ZeroExtend(imm8:'00', 32);
                 d = (Bit32 (opcode, 22) << 4) | Bits32 (opcode, 15, 12);
                 n = Bits32 (opcode, 19, 16);
                 imm32 = Bits32 (opcode, 7, 0) << 2;
                                            
-                // regs = UInt(imm8) DIV 2; // If UInt(imm8) is odd, see ÒFLDMXÓ.
+                // regs = UInt(imm8) DIV 2; // If UInt(imm8) is odd, see 'FLDMX'.
                 regs = Bits32 (opcode, 7, 0) / 2;
                                            
                 // if n == 15 && (wback || CurrentInstrSet() != InstrSet_ARM) then UNPREDICTABLE;
@@ -10841,22 +10844,22 @@ EmulateInstructionARM::EmulateVLDM (const uint32_t opcode, const ARMEncoding enc
                   
             case eEncodingT2:
             case eEncodingA2:
-                // if P == Ô0Õ && U == Ô0Õ && W == Ô0Õ then SEE ÒRelated encodingsÓ;
-                // if P == Ô0Õ && U == Ô1Õ && W == Ô1Õ && Rn == Ô1101Õ then SEE VPOP;
-                // if P == Ô1Õ && W == Ô0Õ then SEE VLDR;
-                // if P == U && W == Ô1Õ then UNDEFINED;
+                // if P == '0' && U == '0' && W == '0' then SEE 'Related encodings';
+                // if P == '0' && U == '1' && W == '1' && Rn == '1101' then SEE VPOP;
+                // if P == '1' && W == '0' then SEE VLDR;
+                // if P == U && W == '1' then UNDEFINED;
                 if ((Bit32 (opcode, 24) == Bit32 (opcode, 23)) && BitIsSet (opcode, 21))
                     return false;
                                            
                 // // Remaining combinations are PUW = 010 (IA without !), 011 (IA with !), 101 (DB with !)
-                // single_regs = TRUE; add = (U == Ô1Õ); wback = (W == Ô1Õ); d = UInt(Vd:D); n = UInt(Rn);
+                // single_regs = TRUE; add = (U == '1'); wback = (W == '1'); d = UInt(Vd:D); n = UInt(Rn);
                 single_regs = true;
                 add = BitIsSet (opcode, 23);
                 wback = BitIsSet (opcode, 21);
                 d = (Bits32 (opcode, 15, 12) << 1) | Bit32 (opcode, 22);
                 n = Bits32 (opcode, 19, 16);
                                            
-                // imm32 = ZeroExtend(imm8:Õ00Õ, 32); regs = UInt(imm8);
+                // imm32 = ZeroExtend(imm8:'00', 32); regs = UInt(imm8);
                 imm32 = Bits32 (opcode, 7, 0) << 2;
                 regs = Bits32 (opcode, 7, 0);
                                            
@@ -11000,25 +11003,25 @@ EmulateInstructionARM::EmulateVSTM (const uint32_t opcode, const ARMEncoding enc
         {
             case eEncodingT1:
             case eEncodingA1:
-                // if P == Ô0Õ && U == Ô0Õ && W == Ô0Õ then SEE ÒRelated encodingsÓ;
-                // if P == Ô1Õ && U == Ô0Õ && W == Ô1Õ && Rn == Ô1101Õ then SEE VPUSH;
-                // if P == Ô1Õ && W == Ô0Õ then SEE VSTR;
-                // if P == U && W == Ô1Õ then UNDEFINED;
+                // if P == '0' && U == '0' && W == '0' then SEE 'Related encodings';
+                // if P == '1' && U == '0' && W == '1' && Rn == '1101' then SEE VPUSH;
+                // if P == '1' && W == '0' then SEE VSTR;
+                // if P == U && W == '1' then UNDEFINED;
                 if ((Bit32 (opcode, 24) == Bit32 (opcode, 23)) && BitIsSet (opcode, 21))
                     return false;
                     
                 // // Remaining combinations are PUW = 010 (IA without !), 011 (IA with !), 101 (DB with !)
-                // single_regs = FALSE; add = (U == Ô1Õ); wback = (W == Ô1Õ);
+                // single_regs = FALSE; add = (U == '1'); wback = (W == '1');
                 single_regs = false;
                 add = BitIsSet (opcode, 23);
                 wback = BitIsSet (opcode, 21);
                 
-                // d = UInt(D:Vd); n = UInt(Rn); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+                // d = UInt(D:Vd); n = UInt(Rn); imm32 = ZeroExtend(imm8:'00', 32);
                 d = (Bit32 (opcode, 22) << 4) | Bits32 (opcode, 15, 12);
                 n = Bits32 (opcode, 19, 16);
                 imm32 = Bits32 (opcode, 7, 0) << 2;
                 
-                // regs = UInt(imm8) DIV 2; // If UInt(imm8) is odd, see ÒFSTMXÓ.
+                // regs = UInt(imm8) DIV 2; // If UInt(imm8) is odd, see 'FSTMX'.
                 regs = Bits32 (opcode, 7, 0) / 2;
                 
                 // if n == 15 && (wback || CurrentInstrSet() != InstrSet_ARM) then UNPREDICTABLE;
@@ -11033,22 +11036,22 @@ EmulateInstructionARM::EmulateVSTM (const uint32_t opcode, const ARMEncoding enc
                                            
             case eEncodingT2:
             case eEncodingA2:
-                // if P == Ô0Õ && U == Ô0Õ && W == Ô0Õ then SEE ÒRelated encodingsÓ;
-                // if P == Ô1Õ && U == Ô0Õ && W == Ô1Õ && Rn == Ô1101Õ then SEE VPUSH;
-                // if P == Ô1Õ && W == Ô0Õ then SEE VSTR;
-                // if P == U && W == Ô1Õ then UNDEFINED;
+                // if P == '0' && U == '0' && W == '0' then SEE 'Related encodings';
+                // if P == '1' && U == '0' && W == '1' && Rn == '1101' then SEE VPUSH;
+                // if P == '1' && W == '0' then SEE VSTR;
+                // if P == U && W == '1' then UNDEFINED;
                 if ((Bit32 (opcode, 24) == Bit32 (opcode, 23)) && BitIsSet (opcode, 21))
                     return false;
                     
                 // // Remaining combinations are PUW = 010 (IA without !), 011 (IA with !), 101 (DB with !)
-                // single_regs = TRUE; add = (U == Ô1Õ); wback = (W == Ô1Õ); d = UInt(Vd:D); n = UInt(Rn);
+                // single_regs = TRUE; add = (U == '1'); wback = (W == '1'); d = UInt(Vd:D); n = UInt(Rn);
                 single_regs = true;
                 add = BitIsSet (opcode, 23);
                 wback = BitIsSet (opcode, 21);
                 d = (Bits32 (opcode, 15, 12) << 1) | Bit32 (opcode, 22);
                 n = Bits32 (opcode, 19, 16);
                 
-                // imm32 = ZeroExtend(imm8:Õ00Õ, 32); regs = UInt(imm8);
+                // imm32 = ZeroExtend(imm8:'00', 32); regs = UInt(imm8);
                 imm32 = Bits32 (opcode, 7, 0) << 2;
                 regs = Bits32 (opcode, 7, 0);
                 
@@ -11193,7 +11196,7 @@ EmulateInstructionARM::EmulateVLDR (const uint32_t opcode, ARMEncoding encoding)
         {
             case eEncodingT1:
             case eEncodingA1:
-                // single_reg = FALSE; add = (U == Ô1Õ); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+                // single_reg = FALSE; add = (U == '1'); imm32 = ZeroExtend(imm8:'00', 32);
                 single_reg = false;
                 add = BitIsSet (opcode, 23);
                 imm32 = Bits32 (opcode, 7, 0) << 2;
@@ -11206,7 +11209,7 @@ EmulateInstructionARM::EmulateVLDR (const uint32_t opcode, ARMEncoding encoding)
                 
             case eEncodingT2:
             case eEncodingA2:
-                // single_reg = TRUE; add = (U == Ô1Õ); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+                // single_reg = TRUE; add = (U == '1'); imm32 = ZeroExtend(imm8:'00', 32);
                 single_reg = true;
                 add = BitIsSet (opcode, 23);
                 imm32 = Bits32 (opcode, 7, 0) << 2;
@@ -11322,7 +11325,7 @@ EmulateInstructionARM::EmulateVSTR (const uint32_t opcode, ARMEncoding encoding)
         {
             case eEncodingT1:
             case eEncodingA1:
-                // single_reg = FALSE; add = (U == Ô1Õ); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+                // single_reg = FALSE; add = (U == '1'); imm32 = ZeroExtend(imm8:'00', 32);
                 single_reg = false;
                 add = BitIsSet (opcode, 23);
                 imm32 = Bits32 (opcode, 7, 0) << 2;
@@ -11339,7 +11342,7 @@ EmulateInstructionARM::EmulateVSTR (const uint32_t opcode, ARMEncoding encoding)
                 
             case eEncodingT2:
             case eEncodingA2:
-                // single_reg = TRUE; add = (U == Ô1Õ); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+                // single_reg = TRUE; add = (U == '1'); imm32 = ZeroExtend(imm8:'00', 32);
                 single_reg = true;
                 add = BitIsSet (opcode, 23);
                 imm32 = Bits32 (opcode, 7, 0) << 2;
@@ -11461,16 +11464,16 @@ EmulateInstructionARM::EmulateVLD1Multiple (const uint32_t opcode, ARMEncoding e
             case eEncodingA1:
             {
                 // case type of
-                    // when Ô0111Õ
-                        // regs = 1; if align<1> == Ô1Õ then UNDEFINED;
-                    // when Ô1010Õ
-                        // regs = 2; if align == Ô11Õ then UNDEFINED;
-                    // when Ô0110Õ
-                        // regs = 3; if align<1> == Ô1Õ then UNDEFINED;
-                    // when Ô0010Õ
+                    // when '0111'
+                        // regs = 1; if align<1> == '1' then UNDEFINED;
+                    // when '1010'
+                        // regs = 2; if align == '11' then UNDEFINED;
+                    // when '0110'
+                        // regs = 3; if align<1> == '1' then UNDEFINED;
+                    // when '0010'
                         // regs = 4;
                     // otherwise
-                        // SEE ÒRelated encodingsÓ;
+                        // SEE 'Related encodings';
                 uint32_t type = Bits32 (opcode, 11, 8);
                 uint32_t align = Bits32 (opcode, 5, 4);
                 if (type == 7) // '0111'
@@ -11499,7 +11502,7 @@ EmulateInstructionARM::EmulateVLD1Multiple (const uint32_t opcode, ARMEncoding e
                 else
                     return false;
                 
-                // alignment = if align == Ô00Õ then 1 else 4 << UInt(align);
+                // alignment = if align == '00' then 1 else 4 << UInt(align);
                 if (align == 0)
                     alignment = 1;
                 else
@@ -11624,13 +11627,13 @@ EmulateInstructionARM::EmulateVLD1Single (const uint32_t opcode, const ARMEncodi
             {
                 uint32_t size = Bits32 (opcode, 11, 10);
                 uint32_t index_align = Bits32 (opcode, 7, 4);
-                // if size == Ô11Õ then SEE VLD1 (single element to all lanes);
+                // if size == '11' then SEE VLD1 (single element to all lanes);
                 if (size == 3)
                    return EmulateVLD1SingleAll (opcode, encoding);
                 // case size of
                 if (size == 0) // when '00'
                 {
-                    // if index_align<0> != Ô0Õ then UNDEFINED;
+                    // if index_align<0> != '0' then UNDEFINED;
                     if (BitIsClear (index_align, 0))
                         return false;
                         
@@ -11640,9 +11643,9 @@ EmulateInstructionARM::EmulateVLD1Single (const uint32_t opcode, const ARMEncodi
                     index = Bits32 (index_align, 3, 1);
                     alignment = 1;
                 }
-                else if (size == 1) // when Ô01Õ
+                else if (size == 1) // when '01'
                 {
-                    // if index_align<1> != Ô0Õ then UNDEFINED;
+                    // if index_align<1> != '0' then UNDEFINED;
                     if (BitIsClear (index_align, 1))
                         return false;
                         
@@ -11651,19 +11654,19 @@ EmulateInstructionARM::EmulateVLD1Single (const uint32_t opcode, const ARMEncodi
                     esize = 16;
                     index = Bits32 (index_align, 3, 2);
                     
-                    // alignment = if index_align<0> == Ô0Õ then 1 else 2;
+                    // alignment = if index_align<0> == '0' then 1 else 2;
                     if (BitIsClear (index_align, 0))
                         alignment = 1;
                     else
                         alignment = 2;
                 }
-                else if (size == 2) // when Ô10Õ
+                else if (size == 2) // when '10'
                 {
-                    // if index_align<2> != Ô0Õ then UNDEFINED;
+                    // if index_align<2> != '0' then UNDEFINED;
                     if (BitIsClear (index_align, 2))
                         return false;
                         
-                    // if index_align<1:0> != Ô00Õ && index_align<1:0> != Ô11Õ then UNDEFINED;
+                    // if index_align<1:0> != '00' && index_align<1:0> != '11' then UNDEFINED;
                     if ((Bits32 (index_align, 1, 0) != 0) && (Bits32 (index_align, 1, 0) != 3))
                         return false;
                         
@@ -11672,7 +11675,7 @@ EmulateInstructionARM::EmulateVLD1Single (const uint32_t opcode, const ARMEncodi
                     esize = 32;
                     index = Bit32 (index_align, 3);
                     
-                    // alignment = if index_align<1:0> == Ô00Õ then 1 else 4;
+                    // alignment = if index_align<1:0> == '00' then 1 else 4;
                     if (Bits32 (index_align, 1, 0) == 0)
                         alignment = 1;
                     else
@@ -11806,35 +11809,35 @@ EmulateInstructionARM::EmulateVST1Multiple (const uint32_t opcode, ARMEncoding e
                 uint32_t align = Bits32 (opcode, 5, 4);
                 
                 // case type of
-                if (type == 7)    // when Ô0111Õ
+                if (type == 7)    // when '0111'
                 {
-                    // regs = 1; if align<1> == Ô1Õ then UNDEFINED;
+                    // regs = 1; if align<1> == '1' then UNDEFINED;
                     regs = 1;
                     if (BitIsSet (align, 1))
                         return false;
                 }
-                else if (type == 10) // when Ô1010Õ
+                else if (type == 10) // when '1010'
                 {
-                    // regs = 2; if align == Ô11Õ then UNDEFINED;
+                    // regs = 2; if align == '11' then UNDEFINED;
                     regs = 2;
                     if (align == 3)
                         return false;
                 }
-                else if (type == 6) // when Ô0110Õ
+                else if (type == 6) // when '0110'
                 {
-                    // regs = 3; if align<1> == Ô1Õ then UNDEFINED;
+                    // regs = 3; if align<1> == '1' then UNDEFINED;
                     regs = 3;
                     if (BitIsSet (align, 1))
                         return false;
                 }
-                else if (type == 2) // when Ô0010Õ
+                else if (type == 2) // when '0010'
                     // regs = 4;
                     regs = 4;
                 else // otherwise
-                    // SEE ÒRelated encodingsÓ;
+                    // SEE 'Related encodings';
                     return false;
                     
-                // alignment = if align == Ô00Õ then 1 else 4 << UInt(align);
+                // alignment = if align == '00' then 1 else 4 << UInt(align);
                 if (align == 0)
                     alignment = 1;
                 else
@@ -11964,14 +11967,14 @@ EmulateInstructionARM::EmulateVST1Single (const uint32_t opcode, ARMEncoding enc
                 uint32_t size = Bits32 (opcode, 11, 10);
                 uint32_t index_align = Bits32 (opcode, 7, 4);
                 
-                // if size == Ô11Õ then UNDEFINED;
+                // if size == '11' then UNDEFINED;
                 if (size == 3)
                     return false;
                     
                 // case size of
-                if (size == 0) // when Ô00Õ
+                if (size == 0) // when '00'
                 {
-                    // if index_align<0> != Ô0Õ then UNDEFINED;
+                    // if index_align<0> != '0' then UNDEFINED;
                     if (BitIsClear (index_align, 0))
                         return false;
                     // ebytes = 1; esize = 8; index = UInt(index_align<3:1>); alignment = 1;
@@ -11980,9 +11983,9 @@ EmulateInstructionARM::EmulateVST1Single (const uint32_t opcode, ARMEncoding enc
                     index = Bits32 (index_align, 3, 1);
                     alignment = 1;
                 }
-                else if (size == 1) // when Ô01Õ
+                else if (size == 1) // when '01'
                 {
-                    // if index_align<1> != Ô0Õ then UNDEFINED;
+                    // if index_align<1> != '0' then UNDEFINED;
                     if (BitIsClear (index_align, 1))
                         return false;
                             
@@ -11991,19 +11994,19 @@ EmulateInstructionARM::EmulateVST1Single (const uint32_t opcode, ARMEncoding enc
                     esize = 16;
                     index = Bits32 (index_align, 3, 2);
                     
-                    // alignment = if index_align<0> == Ô0Õ then 1 else 2;
+                    // alignment = if index_align<0> == '0' then 1 else 2;
                     if (BitIsClear (index_align, 0))
                         alignment = 1;
                     else
                         alignment = 2;
                 }
-                else if (size == 2) // when Ô10Õ
+                else if (size == 2) // when '10'
                 {
-                    // if index_align<2> != Ô0Õ then UNDEFINED;
+                    // if index_align<2> != '0' then UNDEFINED;
                     if (BitIsClear (index_align, 2))
                         return false;
                         
-                    // if index_align<1:0> != Ô00Õ && index_align<1:0> != Ô11Õ then UNDEFINED;
+                    // if index_align<1:0> != '00' && index_align<1:0> != '11' then UNDEFINED;
                     if ((Bits32 (index_align, 1, 0) != 0) && (Bits32 (index_align, 1, 0) != 3))
                         return false;
                         
@@ -12012,7 +12015,7 @@ EmulateInstructionARM::EmulateVST1Single (const uint32_t opcode, ARMEncoding enc
                     esize = 32;
                     index = Bit32 (index_align, 3);
                     
-                    // alignment = if index_align<1:0> == Ô00Õ then 1 else 4;
+                    // alignment = if index_align<1:0> == '00' then 1 else 4;
                     if (Bits32 (index_align, 1, 0) == 0)
                         alignment = 1;
                     else
@@ -12125,12 +12128,12 @@ EmulateInstructionARM::EmulateVLD1SingleAll (const uint32_t opcode, const ARMEnc
             case eEncodingT1:
             case eEncodingA1:
             {
-                //if size == Ô11Õ || (size == Ô00Õ && a == Ô1Õ) then UNDEFINED;
+                //if size == '11' || (size == '00' && a == '1') then UNDEFINED;
                 uint32_t size = Bits32 (opcode, 7, 6);
                 if ((size == 3) || ((size == 0) && BitIsSet (opcode, 4)))
                     return false;
                     
-                //ebytes = 1 << UInt(size); elements = 8 DIV ebytes; regs = if T == Ô0Õ then 1 else 2;
+                //ebytes = 1 << UInt(size); elements = 8 DIV ebytes; regs = if T == '0' then 1 else 2;
                 ebytes = 1 << size;
                 elements = 8 / ebytes;
                 if (BitIsClear (opcode, 5))
@@ -12138,7 +12141,7 @@ EmulateInstructionARM::EmulateVLD1SingleAll (const uint32_t opcode, const ARMEnc
                 else
                     regs = 2;
                     
-                //alignment = if a == Ô0Õ then 1 else ebytes;
+                //alignment = if a == '0' then 1 else ebytes;
                 if (BitIsClear (opcode, 4))
                     alignment = 1;
                 else
@@ -12235,19 +12238,19 @@ EmulateInstructionARM::EmulateSUBSPcLrEtc (const uint32_t opcode, const ARMEncod
             UNPREDICTABLE;
         operand2 = if register_form then Shift(R[m], shift_t, shift_n, APSR.C) else imm32;
         case opcode of
-            when Ô0000Õ result = R[n] AND operand2; // AND
-            when Ô0001Õ result = R[n] EOR operand2; // EOR
-            when Ô0010Õ (result, -, -) = AddWithCarry(R[n], NOT(operand2), Ô1Õ); // SUB
-            when Ô0011Õ (result, -, -) = AddWithCarry(NOT(R[n]), operand2, Ô1Õ); // RSB
-            when Ô0100Õ (result, -, -) = AddWithCarry(R[n], operand2, Ô0Õ); // ADD
-            when Ô0101Õ (result, -, -) = AddWithCarry(R[n], operand2, APSR.c); // ADC
-            when Ô0110Õ (result, -, -) = AddWithCarry(R[n], NOT(operand2), APSR.C); // SBC
-            when Ô0111Õ (result, -, -) = AddWithCarry(NOT(R[n]), operand2, APSR.C); // RSC
-            when Ô1100Õ result = R[n] OR operand2; // ORR
-            when Ô1101Õ result = operand2; // MOV
-            when Ô1110Õ result = R[n] AND NOT(operand2); // BIC
-            when Ô1111Õ result = NOT(operand2); // MVN
-        CPSRWriteByInstr(SPSR[], Ô1111Õ, TRUE);
+            when '0000' result = R[n] AND operand2; // AND
+            when '0001' result = R[n] EOR operand2; // EOR
+            when '0010' (result, -, -) = AddWithCarry(R[n], NOT(operand2), '1'); // SUB
+            when '0011' (result, -, -) = AddWithCarry(NOT(R[n]), operand2, '1'); // RSB
+            when '0100' (result, -, -) = AddWithCarry(R[n], operand2, '0'); // ADD
+            when '0101' (result, -, -) = AddWithCarry(R[n], operand2, APSR.c); // ADC
+            when '0110' (result, -, -) = AddWithCarry(R[n], NOT(operand2), APSR.C); // SBC
+            when '0111' (result, -, -) = AddWithCarry(NOT(R[n]), operand2, APSR.C); // RSC
+            when '1100' result = R[n] OR operand2; // ORR
+            when '1101' result = operand2; // MOV
+            when '1110' result = R[n] AND NOT(operand2); // BIC
+            when '1111' result = NOT(operand2); // MVN
+        CPSRWriteByInstr(SPSR[], '1111', TRUE);
         BranchWritePC(result);
 #endif
 
@@ -12267,7 +12270,7 @@ EmulateInstructionARM::EmulateSUBSPcLrEtc (const uint32_t opcode, const ARMEncod
         {
             case eEncodingT1:
                 // if CurrentInstrSet() == InstrSet_ThumbEE then UNPREDICTABLE
-                // n = 14; imm32 = ZeroExtend(imm8, 32); register_form = FALSE; opcode = Ô0010Õ; // = SUB
+                // n = 14; imm32 = ZeroExtend(imm8, 32); register_form = FALSE; opcode = '0010'; // = SUB
                 n = 14;
                 imm32 = Bits32 (opcode, 7, 0);
                 register_form = false;
@@ -12329,62 +12332,62 @@ EmulateInstructionARM::EmulateSUBSPcLrEtc (const uint32_t opcode, const ARMEncod
         // case opcode of
         switch (code)
         {
-            case 0: // when Ô0000Õ 
+            case 0: // when '0000' 
                 // result = R[n] AND operand2; // AND
                 result.result = Rn & operand2;
                 break;
 
-            case 1: // when Ô0001Õ 
+            case 1: // when '0001' 
                 // result = R[n] EOR operand2; // EOR
                 result.result = Rn ^ operand2;
                 break;
                 
-            case 2: // when Ô0010Õ 
-                // (result, -, -) = AddWithCarry(R[n], NOT(operand2), Ô1Õ); // SUB
+            case 2: // when '0010' 
+                // (result, -, -) = AddWithCarry(R[n], NOT(operand2), '1'); // SUB
                 result = AddWithCarry (Rn, ~(operand2), 1);
                 break;
                 
-            case 3: // when Ô0011Õ 
-                // (result, -, -) = AddWithCarry(NOT(R[n]), operand2, Ô1Õ); // RSB
+            case 3: // when '0011' 
+                // (result, -, -) = AddWithCarry(NOT(R[n]), operand2, '1'); // RSB
                 result = AddWithCarry (~(Rn), operand2, 1);
                 break;
                 
-            case 4: // when Ô0100Õ 
-                // (result, -, -) = AddWithCarry(R[n], operand2, Ô0Õ); // ADD
+            case 4: // when '0100' 
+                // (result, -, -) = AddWithCarry(R[n], operand2, '0'); // ADD
                 result = AddWithCarry (Rn, operand2, 0);
                 break;
                 
-            case 5: // when Ô0101Õ 
+            case 5: // when '0101' 
                 // (result, -, -) = AddWithCarry(R[n], operand2, APSR.c); // ADC
                 result = AddWithCarry (Rn, operand2, APSR_C);
                 break;
                 
-            case 6: // when Ô0110Õ 
+            case 6: // when '0110' 
                 // (result, -, -) = AddWithCarry(R[n], NOT(operand2), APSR.C); // SBC
                 result = AddWithCarry (Rn, ~(operand2), APSR_C);
                 break;
                 
-            case 7: // when Ô0111Õ 
+            case 7: // when '0111' 
                 // (result, -, -) = AddWithCarry(NOT(R[n]), operand2, APSR.C); // RSC
                 result = AddWithCarry (~(Rn), operand2, APSR_C);
                 break;
                 
-            case 10: // when Ô1100Õ 
+            case 10: // when '1100' 
                 // result = R[n] OR operand2; // ORR
                 result.result = Rn | operand2;
                 break;
                 
-            case 11: // when Ô1101Õ 
+            case 11: // when '1101' 
                 // result = operand2; // MOV
                 result.result = operand2;
                 break;
                 
-            case 12: // when Ô1110Õ 
+            case 12: // when '1110' 
                 // result = R[n] AND NOT(operand2); // BIC
                 result.result = Rn & ~(operand2);
                 break;
                 
-            case 15: // when Ô1111Õ 
+            case 15: // when '1111' 
                 // result = NOT(operand2); // MVN
                 result.result = ~(operand2);
                 break;
@@ -12392,7 +12395,7 @@ EmulateInstructionARM::EmulateSUBSPcLrEtc (const uint32_t opcode, const ARMEncod
             default:
                 return false;
         }
-        // CPSRWriteByInstr(SPSR[], Ô1111Õ, TRUE);
+        // CPSRWriteByInstr(SPSR[], '1111', TRUE);
         
         // For now, in emulation mode, we don't have access to the SPSR, so we will use the CPSR instead, and hope for
         // the best.
@@ -13076,7 +13079,7 @@ EmulateInstructionARM::ArchVersion ()
 }
 
 bool
-EmulateInstructionARM::ConditionPassed (const uint32_t opcode, bool *is_conditional)
+EmulateInstructionARM::ConditionPassed (const uint32_t opcode)
 {
    // If we are ignoring conditions, then always return true.
    // this allows us to iterate over disassembly code and still
@@ -13084,12 +13087,8 @@ EmulateInstructionARM::ConditionPassed (const uint32_t opcode, bool *is_conditio
    // bits set in the CPSR register...
     if (m_ignore_conditions)
         return true;
-    
-    if (is_conditional)
-        *is_conditional = true;
 
     const uint32_t cond = CurrentCond (opcode);
-    
     if (cond == UINT32_MAX)
         return false;
     
@@ -13149,8 +13148,6 @@ EmulateInstructionARM::ConditionPassed (const uint32_t opcode, bool *is_conditio
     case 7: 
         // Always execute (cond == 0b1110, or the special 0b1111 which gives
         // opcodes different meanings, but always means execution happens.
-        if (is_conditional)
-            *is_conditional = false;
         return true;
     }
 
@@ -13643,6 +13640,13 @@ EmulateInstructionARM::EvaluateInstruction (uint32_t evaluate_options)
 }
 
 bool
+EmulateInstructionARM::IsInstructionConditional()
+{
+    const uint32_t cond = CurrentCond (m_opcode.GetOpcode32());
+    return cond != 0xe && cond != 0xf && cond != UINT32_MAX;
+}
+
+bool
 EmulateInstructionARM::TestEmulation (Stream *out_stream, ArchSpec &arch, OptionValueDictionary *test_data)
 {
     if (!test_data)
diff --git a/source/Plugins/Instruction/ARM/EmulateInstructionARM.h b/source/Plugins/Instruction/ARM/EmulateInstructionARM.h
index d107ca6bc702e..893f43f199779 100644
--- a/source/Plugins/Instruction/ARM/EmulateInstructionARM.h
+++ b/source/Plugins/Instruction/ARM/EmulateInstructionARM.h
@@ -94,20 +94,20 @@ public:
         return false;
     }
 
-    virtual lldb_private::ConstString
-    GetPluginName()
+    lldb_private::ConstString
+    GetPluginName() override
     {
         return GetPluginNameStatic();
     }
 
-    virtual uint32_t
-    GetPluginVersion()
+    uint32_t
+    GetPluginVersion()  override
     {
         return 1;
     }
 
     bool
-    SetTargetTriple (const ArchSpec &arch);
+    SetTargetTriple (const ArchSpec &arch)  override;
     
     enum Mode
     {
@@ -148,8 +148,8 @@ public:
 //    {
 //    }
     
-    virtual bool
-    SupportsEmulatingInstructionsOfType (InstructionType inst_type)
+    bool
+    SupportsEmulatingInstructionsOfType (InstructionType inst_type)  override
     {
         return SupportsEmulatingInstructionsOfTypeStatic (inst_type);
     }
@@ -157,32 +157,32 @@ public:
     virtual bool
     SetArchitecture (const ArchSpec &arch);
 
-    virtual bool 
-    ReadInstruction ();
+    bool
+    ReadInstruction ()  override;
     
-    virtual bool
-    SetInstruction (const Opcode &insn_opcode, const Address &inst_addr, Target *target);
+    bool
+    SetInstruction (const Opcode &insn_opcode, const Address &inst_addr, Target *target)  override;
 
-    virtual bool
-    EvaluateInstruction (uint32_t evaluate_options);
-    
-    virtual bool
-    TestEmulation (Stream *out_stream, ArchSpec &arch, OptionValueDictionary *test_data);
+    bool
+    EvaluateInstruction (uint32_t evaluate_options) override;
 
-    virtual bool
-    GetRegisterInfo (lldb::RegisterKind reg_kind, uint32_t reg_num, RegisterInfo &reg_info);
-    
+    bool
+    IsInstructionConditional() override;
 
-    virtual bool
-    CreateFunctionEntryUnwind (UnwindPlan &unwind_plan);
+    bool
+    TestEmulation (Stream *out_stream, ArchSpec &arch, OptionValueDictionary *test_data)  override;
+
+    bool
+    GetRegisterInfo (lldb::RegisterKind reg_kind, uint32_t reg_num, RegisterInfo &reg_info)  override;
+
+    bool
+    CreateFunctionEntryUnwind (UnwindPlan &unwind_plan) override;
 
     uint32_t
     ArchVersion();
 
     bool
-    ConditionPassed (const uint32_t opcode, 
-                     bool *is_conditional = NULL);  // Filled in with true if the opcode is a conditional opcode
-                                                    // Filled in with false if the opcode is always executed
+    ConditionPassed (const uint32_t opcode);
 
     uint32_t
     CurrentCond (const uint32_t opcode);
diff --git a/source/Plugins/Instruction/ARM64/EmulateInstructionARM64.cpp b/source/Plugins/Instruction/ARM64/EmulateInstructionARM64.cpp
index 992df1fba59e6..372ccf9b05f4b 100644
--- a/source/Plugins/Instruction/ARM64/EmulateInstructionARM64.cpp
+++ b/source/Plugins/Instruction/ARM64/EmulateInstructionARM64.cpp
@@ -231,58 +231,72 @@ EmulateInstructionARM64::GetOpcodeForInstruction (const uint32_t opcode)
         //----------------------------------------------------------------------
 
         // push register(s)
-        { 0xff000000, 0xd1000000, No_VFP, &EmulateInstructionARM64::Emulate_addsub_imm, "SUB  <Xd|SP>, <Xn|SP>, #<imm> {, <shift>}" },
-        { 0xff000000, 0xf1000000, No_VFP, &EmulateInstructionARM64::Emulate_addsub_imm, "SUBS  <Xd>, <Xn|SP>, #<imm> {, <shift>}" },
-        { 0xff000000, 0x91000000, No_VFP, &EmulateInstructionARM64::Emulate_addsub_imm, "ADD  <Xd|SP>, <Xn|SP>, #<imm> {, <shift>}" },
-        { 0xff000000, 0xb1000000, No_VFP, &EmulateInstructionARM64::Emulate_addsub_imm, "ADDS  <Xd>, <Xn|SP>, #<imm> {, <shift>}" },
-
-        { 0xff000000, 0x51000000, No_VFP, &EmulateInstructionARM64::Emulate_addsub_imm, "SUB  <Wd|WSP>, <Wn|WSP>, #<imm> {, <shift>}" },
-        { 0xff000000, 0x71000000, No_VFP, &EmulateInstructionARM64::Emulate_addsub_imm, "SUBS  <Wd>, <Wn|WSP>, #<imm> {, <shift>}" },
-        { 0xff000000, 0x11000000, No_VFP, &EmulateInstructionARM64::Emulate_addsub_imm, "ADD  <Wd|WSP>, <Wn|WSP>, #<imm> {, <shift>}" },
-        { 0xff000000, 0x31000000, No_VFP, &EmulateInstructionARM64::Emulate_addsub_imm, "ADDS  <Wd>, <Wn|WSP>, #<imm> {, <shift>}" },
-
-        { 0xffc00000, 0x29000000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_off,  "STP  <Wt>, <Wt2>, [<Xn|SP>{, #<imm>}]" },
-        { 0xffc00000, 0xa9000000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_off,  "STP  <Xt>, <Xt2>, [<Xn|SP>{, #<imm>}]" },
-        { 0xffc00000, 0x2d000000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_off,  "STP  <St>, <St2>, [<Xn|SP>{, #<imm>}]" },
-        { 0xffc00000, 0x6d000000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_off,  "STP  <Dt>, <Dt2>, [<Xn|SP>{, #<imm>}]" },
-        { 0xffc00000, 0xad000000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_off,  "STP  <Qt>, <Qt2>, [<Xn|SP>{, #<imm>}]" },
-
-        { 0xffc00000, 0x29800000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_pre,  "STP  <Wt>, <Wt2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0xa9800000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_pre,  "STP  <Xt>, <Xt2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0x2d800000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_pre,  "STP  <St>, <St2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0x6d800000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_pre,  "STP  <Dt>, <Dt2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0xad800000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_pre,  "STP  <Qt>, <Qt2>, [<Xn|SP>, #<imm>]!" },
-
-        { 0xffc00000, 0x28800000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_post, "STP  <Wt>, <Wt2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0xa8800000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_post, "STP  <Xt>, <Xt2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0x2c800000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_post, "STP  <St>, <St2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0x6c800000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_post, "STP  <Dt>, <Dt2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0xac800000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_post, "STP  <Qt>, <Qt2>, [<Xn|SP>, #<imm>]!" },
-
-        { 0xffc00000, 0x29400000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_off,  "LDP  <Wt>, <Wt2>, [<Xn|SP>{, #<imm>}]" },
-        { 0xffc00000, 0xa9400000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_off,  "LDP  <Xt>, <Xt2>, [<Xn|SP>{, #<imm>}]" },
-        { 0xffc00000, 0x2d400000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_off,  "LDP  <St>, <St2>, [<Xn|SP>{, #<imm>}]" },
-        { 0xffc00000, 0x6d400000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_off,  "LDP  <Dt>, <Dt2>, [<Xn|SP>{, #<imm>}]" },
-        { 0xffc00000, 0xad400000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_off,  "LDP  <Qt>, <Qt2>, [<Xn|SP>{, #<imm>}]" },
-
-        { 0xffc00000, 0x29c00000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_pre,  "LDP  <Wt>, <Wt2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0xa9c00000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_pre,  "LDP  <Xt>, <Xt2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0x2dc00000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_pre,  "LDP  <St>, <St2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0x6dc00000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_pre,  "LDP  <Dt>, <Dt2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0xadc00000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_pre,  "LDP  <Qt>, <Qt2>, [<Xn|SP>, #<imm>]!" },
-
-        { 0xffc00000, 0x28c00000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_post, "LDP  <Wt>, <Wt2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0xa8c00000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_post, "LDP  <Xt>, <Xt2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0x2cc00000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_post, "LDP  <St>, <St2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0x6cc00000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_post, "LDP  <Dt>, <Dt2>, [<Xn|SP>, #<imm>]!" },
-        { 0xffc00000, 0xacc00000, No_VFP, &EmulateInstructionARM64::Emulate_ldstpair_post, "LDP  <Qt>, <Qt2>, [<Xn|SP>, #<imm>]!" },
-
-        { 0xfc000000, 0x14000000, No_VFP, &EmulateInstructionARM64::EmulateB,              "B <label>"                            },
-        { 0xff000010, 0x54000000, No_VFP, &EmulateInstructionARM64::EmulateBcond,          "B.<cond> <label>"                     },
-        { 0x7f000000, 0x34000000, No_VFP, &EmulateInstructionARM64::EmulateCBZ,            "CBZ <Wt>, <label>"                    },
-        { 0x7f000000, 0x35000000, No_VFP, &EmulateInstructionARM64::EmulateCBZ,            "CBNZ <Wt>, <label>"                   },
-        { 0x7f000000, 0x36000000, No_VFP, &EmulateInstructionARM64::EmulateTBZ,            "TBZ <R><t>, #<imm>, <label>"          },
-        { 0x7f000000, 0x37000000, No_VFP, &EmulateInstructionARM64::EmulateTBZ,            "TBNZ <R><t>, #<imm>, <label>"         },
+        { 0xff000000, 0xd1000000, No_VFP, &EmulateInstructionARM64::EmulateADDSUBImm, "SUB  <Xd|SP>, <Xn|SP>, #<imm> {, <shift>}" },
+        { 0xff000000, 0xf1000000, No_VFP, &EmulateInstructionARM64::EmulateADDSUBImm, "SUBS  <Xd>, <Xn|SP>, #<imm> {, <shift>}"   },
+        { 0xff000000, 0x91000000, No_VFP, &EmulateInstructionARM64::EmulateADDSUBImm, "ADD  <Xd|SP>, <Xn|SP>, #<imm> {, <shift>}" },
+        { 0xff000000, 0xb1000000, No_VFP, &EmulateInstructionARM64::EmulateADDSUBImm, "ADDS  <Xd>, <Xn|SP>, #<imm> {, <shift>}"   },
+
+        { 0xff000000, 0x51000000, No_VFP, &EmulateInstructionARM64::EmulateADDSUBImm, "SUB  <Wd|WSP>, <Wn|WSP>, #<imm> {, <shift>}" },
+        { 0xff000000, 0x71000000, No_VFP, &EmulateInstructionARM64::EmulateADDSUBImm, "SUBS  <Wd>, <Wn|WSP>, #<imm> {, <shift>}"    },
+        { 0xff000000, 0x11000000, No_VFP, &EmulateInstructionARM64::EmulateADDSUBImm, "ADD  <Wd|WSP>, <Wn|WSP>, #<imm> {, <shift>}" },
+        { 0xff000000, 0x31000000, No_VFP, &EmulateInstructionARM64::EmulateADDSUBImm, "ADDS  <Wd>, <Wn|WSP>, #<imm> {, <shift>}"    },
+
+        { 0xffc00000, 0x29000000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_OFF>, "STP  <Wt>, <Wt2>, [<Xn|SP>{, #<imm>}]" },
+        { 0xffc00000, 0xa9000000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_OFF>, "STP  <Xt>, <Xt2>, [<Xn|SP>{, #<imm>}]" },
+        { 0xffc00000, 0x2d000000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_OFF>, "STP  <St>, <St2>, [<Xn|SP>{, #<imm>}]" },
+        { 0xffc00000, 0x6d000000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_OFF>, "STP  <Dt>, <Dt2>, [<Xn|SP>{, #<imm>}]" },
+        { 0xffc00000, 0xad000000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_OFF>, "STP  <Qt>, <Qt2>, [<Xn|SP>{, #<imm>}]" },
+
+        { 0xffc00000, 0x29800000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_PRE>, "STP  <Wt>, <Wt2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0xa9800000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_PRE>, "STP  <Xt>, <Xt2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0x2d800000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_PRE>, "STP  <St>, <St2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0x6d800000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_PRE>, "STP  <Dt>, <Dt2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0xad800000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_PRE>, "STP  <Qt>, <Qt2>, [<Xn|SP>, #<imm>]!" },
+
+        { 0xffc00000, 0x28800000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_POST>, "STP  <Wt>, <Wt2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0xa8800000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_POST>, "STP  <Xt>, <Xt2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0x2c800000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_POST>, "STP  <St>, <St2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0x6c800000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_POST>, "STP  <Dt>, <Dt2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0xac800000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_POST>, "STP  <Qt>, <Qt2>, [<Xn|SP>, #<imm>]!" },
+
+        { 0xffc00000, 0x29400000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_OFF>, "LDP  <Wt>, <Wt2>, [<Xn|SP>{, #<imm>}]" },
+        { 0xffc00000, 0xa9400000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_OFF>, "LDP  <Xt>, <Xt2>, [<Xn|SP>{, #<imm>}]" },
+        { 0xffc00000, 0x2d400000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_OFF>, "LDP  <St>, <St2>, [<Xn|SP>{, #<imm>}]" },
+        { 0xffc00000, 0x6d400000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_OFF>, "LDP  <Dt>, <Dt2>, [<Xn|SP>{, #<imm>}]" },
+        { 0xffc00000, 0xad400000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_OFF>, "LDP  <Qt>, <Qt2>, [<Xn|SP>{, #<imm>}]" },
+
+        { 0xffc00000, 0x29c00000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_PRE>, "LDP  <Wt>, <Wt2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0xa9c00000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_PRE>, "LDP  <Xt>, <Xt2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0x2dc00000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_PRE>, "LDP  <St>, <St2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0x6dc00000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_PRE>, "LDP  <Dt>, <Dt2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0xadc00000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_PRE>, "LDP  <Qt>, <Qt2>, [<Xn|SP>, #<imm>]!" },
+
+        { 0xffc00000, 0x28c00000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_POST>, "LDP  <Wt>, <Wt2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0xa8c00000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_POST>, "LDP  <Xt>, <Xt2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0x2cc00000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_POST>, "LDP  <St>, <St2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0x6cc00000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_POST>, "LDP  <Dt>, <Dt2>, [<Xn|SP>, #<imm>]!" },
+        { 0xffc00000, 0xacc00000, No_VFP, &EmulateInstructionARM64::EmulateLDPSTP<AddrMode_POST>, "LDP  <Qt>, <Qt2>, [<Xn|SP>, #<imm>]!" },
+
+        { 0xffe00c00, 0xb8000400, No_VFP, &EmulateInstructionARM64::EmulateLDRSTRImm<AddrMode_POST>, "STR <Wt>, [<Xn|SP>], #<simm>"   },
+        { 0xffe00c00, 0xf8000400, No_VFP, &EmulateInstructionARM64::EmulateLDRSTRImm<AddrMode_POST>, "STR <Xt>, [<Xn|SP>], #<simm>"   },
+        { 0xffe00c00, 0xb8000c00, No_VFP, &EmulateInstructionARM64::EmulateLDRSTRImm<AddrMode_PRE>,  "STR <Wt>, [<Xn|SP>, #<simm>]!"  },
+        { 0xffe00c00, 0xf8000c00, No_VFP, &EmulateInstructionARM64::EmulateLDRSTRImm<AddrMode_PRE>,  "STR <Xt>, [<Xn|SP>, #<simm>]!"  },
+        { 0xffc00000, 0xb9000000, No_VFP, &EmulateInstructionARM64::EmulateLDRSTRImm<AddrMode_OFF>,  "STR <Wt>, [<Xn|SP>{, #<pimm>}]" },
+        { 0xffc00000, 0xf9000000, No_VFP, &EmulateInstructionARM64::EmulateLDRSTRImm<AddrMode_OFF>,  "STR <Xt>, [<Xn|SP>{, #<pimm>}]" },
+
+        { 0xffe00c00, 0xb8400400, No_VFP, &EmulateInstructionARM64::EmulateLDRSTRImm<AddrMode_POST>, "LDR <Wt>, [<Xn|SP>], #<simm>"   },
+        { 0xffe00c00, 0xf8400400, No_VFP, &EmulateInstructionARM64::EmulateLDRSTRImm<AddrMode_POST>, "LDR <Xt>, [<Xn|SP>], #<simm>"   },
+        { 0xffe00c00, 0xb8400c00, No_VFP, &EmulateInstructionARM64::EmulateLDRSTRImm<AddrMode_PRE>,  "LDR <Wt>, [<Xn|SP>, #<simm>]!"  },
+        { 0xffe00c00, 0xf8400c00, No_VFP, &EmulateInstructionARM64::EmulateLDRSTRImm<AddrMode_PRE>,  "LDR <Xt>, [<Xn|SP>, #<simm>]!"  },
+        { 0xffc00000, 0xb9400000, No_VFP, &EmulateInstructionARM64::EmulateLDRSTRImm<AddrMode_OFF>,  "LDR <Wt>, [<Xn|SP>{, #<pimm>}]" },
+        { 0xffc00000, 0xf9400000, No_VFP, &EmulateInstructionARM64::EmulateLDRSTRImm<AddrMode_OFF>,  "LDR <Xt>, [<Xn|SP>{, #<pimm>}]" },
+
+        { 0xfc000000, 0x14000000, No_VFP, &EmulateInstructionARM64::EmulateB,     "B <label>"                    },
+        { 0xff000010, 0x54000000, No_VFP, &EmulateInstructionARM64::EmulateBcond, "B.<cond> <label>"             },
+        { 0x7f000000, 0x34000000, No_VFP, &EmulateInstructionARM64::EmulateCBZ,   "CBZ <Wt>, <label>"            },
+        { 0x7f000000, 0x35000000, No_VFP, &EmulateInstructionARM64::EmulateCBZ,   "CBNZ <Wt>, <label>"           },
+        { 0x7f000000, 0x36000000, No_VFP, &EmulateInstructionARM64::EmulateTBZ,   "TBZ <R><t>, #<imm>, <label>"  },
+        { 0x7f000000, 0x37000000, No_VFP, &EmulateInstructionARM64::EmulateTBZ,   "TBNZ <R><t>, #<imm>, <label>" },
 
     };
     static const size_t k_num_arm_opcodes = llvm::array_lengthof(g_opcodes);
@@ -391,7 +405,7 @@ EmulateInstructionARM64::CreateFunctionEntryUnwind (UnwindPlan &unwind_plan)
 uint32_t
 EmulateInstructionARM64::GetFramePointerRegisterNumber () const
 {
-    if (m_arch.GetTriple().getEnvironment() == llvm::Triple::Android)
+    if (m_arch.GetTriple().isAndroid())
         return LLDB_INVALID_REGNUM; // Don't use frame pointer on android
 
     return arm64_dwarf::sp;
@@ -462,7 +476,7 @@ EmulateInstructionARM64::BranchTo (const Context &context, uint32_t N, addr_t ta
 }
 
 bool
-EmulateInstructionARM64::ConditionHolds (const uint32_t cond, bool *is_conditional)
+EmulateInstructionARM64::ConditionHolds (const uint32_t cond)
 {
    // If we are ignoring conditions, then always return true.
    // this allows us to iterate over disassembly code and still
@@ -470,10 +484,7 @@ EmulateInstructionARM64::ConditionHolds (const uint32_t cond, bool *is_condition
    // bits set in the CPSR register...
     if (m_ignore_conditions)
         return true;
-    
-    if (is_conditional)
-        *is_conditional = true;
-  
+
     bool result = false;
     switch (UnsignedBits(cond, 3, 1))
     {
@@ -499,19 +510,18 @@ EmulateInstructionARM64::ConditionHolds (const uint32_t cond, bool *is_condition
         result = (m_opcode_pstate.N == m_opcode_pstate.V && m_opcode_pstate.Z == 0);
         break;
     case 7:
-        result = true;
-        if (is_conditional)
-            *is_conditional = false;
-        break;
+        // Always execute (cond == 0b1110, or the special 0b1111 which gives
+        // opcodes different meanings, but always means execution happens.
+        return true;
     }
 
-    if (cond & 1 && cond != 15)
+    if (cond & 1)
         result = !result;
     return result;
 }
 
 bool
-EmulateInstructionARM64::Emulate_addsub_imm (const uint32_t opcode)
+EmulateInstructionARM64::EmulateADDSUBImm (const uint32_t opcode)
 {
     // integer d = UInt(Rd);
     // integer n = UInt(Rn);
@@ -628,26 +638,8 @@ EmulateInstructionARM64::Emulate_addsub_imm (const uint32_t opcode)
     return false;
 }
 
-bool
-EmulateInstructionARM64::Emulate_ldstpair_off (const uint32_t opcode)
-{
-    return Emulate_ldstpair (opcode, AddrMode_OFF);
-}
-
-bool
-EmulateInstructionARM64::Emulate_ldstpair_pre (const uint32_t opcode)
-{
-    return Emulate_ldstpair (opcode, AddrMode_PRE);
-}
-
-bool
-EmulateInstructionARM64::Emulate_ldstpair_post (const uint32_t opcode)
-{
-    return Emulate_ldstpair (opcode, AddrMode_POST);
-}
-
-bool
-EmulateInstructionARM64::Emulate_ldstpair (const uint32_t opcode, AddrMode a_mode)
+template <EmulateInstructionARM64::AddrMode a_mode> bool
+EmulateInstructionARM64::EmulateLDPSTP (const uint32_t opcode)
 {
     uint32_t opc = Bits32(opcode, 31, 30);
     uint32_t V = Bit32(opcode, 26);
@@ -776,10 +768,6 @@ EmulateInstructionARM64::Emulate_ldstpair (const uint32_t opcode, AddrMode a_mod
     Context context_t;
     Context context_t2;
 
-    context_t.type = eContextRegisterPlusOffset;
-    context_t2.type = eContextRegisterPlusOffset;
-    context_t.SetRegisterToRegisterPlusOffset (reg_info_Rt, reg_info_base, 0);
-    context_t2.SetRegisterToRegisterPlusOffset (reg_info_Rt2, reg_info_base, size);
     uint8_t buffer [RegisterValue::kMaxRegisterByteSize];
     Error error;
 
@@ -792,6 +780,13 @@ EmulateInstructionARM64::Emulate_ldstpair (const uint32_t opcode, AddrMode a_mod
                 context_t.type = eContextPushRegisterOnStack;
                 context_t2.type = eContextPushRegisterOnStack;
             }
+            else
+            {
+                context_t.type = eContextRegisterStore;
+                context_t2.type = eContextRegisterStore;
+            }
+            context_t.SetRegisterToRegisterPlusOffset (reg_info_Rt, reg_info_base, 0);
+            context_t2.SetRegisterToRegisterPlusOffset (reg_info_Rt2, reg_info_base, size);
 
             if (!ReadRegister (&reg_info_Rt, data_Rt))
                 return false;
@@ -820,6 +815,13 @@ EmulateInstructionARM64::Emulate_ldstpair (const uint32_t opcode, AddrMode a_mod
                 context_t.type = eContextPopRegisterOffStack;
                 context_t2.type = eContextPopRegisterOffStack;
             }
+            else
+            {
+                context_t.type = eContextRegisterLoad;
+                context_t2.type = eContextRegisterLoad;
+            }
+            context_t.SetAddress(address);
+            context_t2.SetAddress(address + size);
 
             if (rt_unknown)
                 memset (buffer, 'U', reg_info_Rt.byte_size);
@@ -874,6 +876,132 @@ EmulateInstructionARM64::Emulate_ldstpair (const uint32_t opcode, AddrMode a_mod
     return true;
 }
 
+template <EmulateInstructionARM64::AddrMode a_mode> bool
+EmulateInstructionARM64::EmulateLDRSTRImm (const uint32_t opcode)
+{
+    uint32_t size = Bits32(opcode, 31, 30);
+    uint32_t opc = Bits32(opcode, 23, 22);
+    uint32_t n = Bits32(opcode, 9, 5);
+    uint32_t t = Bits32(opcode, 4, 0);
+
+    bool wback;
+    bool postindex;
+    uint64_t offset;
+
+    switch (a_mode)
+    {
+        case AddrMode_POST:
+            wback = true;
+            postindex = true;
+            offset = llvm::SignExtend64<9>(Bits32(opcode, 20, 12));
+            break;
+        case AddrMode_PRE:
+            wback = true;
+            postindex = false;
+            offset = llvm::SignExtend64<9>(Bits32(opcode, 20, 12));
+            break;
+        case AddrMode_OFF:
+            wback = false;
+            postindex = false;
+            offset = LSL(Bits32(opcode, 21, 10), size);
+            break;
+    }
+
+    MemOp memop;
+
+    if (Bit32(opc, 1) == 0)
+    {
+        memop = Bit32(opc, 0) == 1 ? MemOp_LOAD : MemOp_STORE;
+    }
+    else
+    {
+        memop = MemOp_LOAD;
+        if (size == 2 && Bit32(opc, 0) == 1)
+            return false;
+    }
+
+    Error error;
+    bool success = false;
+    uint64_t address;
+    uint8_t buffer[RegisterValue::kMaxRegisterByteSize];
+    RegisterValue data_Rt;
+
+    if (n == 31)
+        address = ReadRegisterUnsigned (eRegisterKindDWARF, arm64_dwarf::sp, 0, &success);
+    else
+        address = ReadRegisterUnsigned (eRegisterKindDWARF, arm64_dwarf::x0 + n, 0, &success);
+
+    if (!success)
+        return false;
+
+    if (!postindex)
+        address += offset;
+
+    RegisterInfo reg_info_base;
+    if (!GetRegisterInfo (eRegisterKindDWARF, arm64_dwarf::x0 + n, reg_info_base))
+        return false;
+
+    RegisterInfo reg_info_Rt;
+    if (!GetRegisterInfo (eRegisterKindDWARF, arm64_dwarf::x0 + t, reg_info_Rt))
+        return false;
+
+    Context context;
+    switch (memop)
+    {
+        case MemOp_STORE:
+            if (n == 31 || n == GetFramePointerRegisterNumber()) // if this store is based off of the sp or fp register
+                context.type = eContextPushRegisterOnStack;
+            else
+                context.type = eContextRegisterStore;
+            context.SetRegisterToRegisterPlusOffset (reg_info_Rt, reg_info_base, postindex ? 0 : offset);
+
+            if (!ReadRegister (&reg_info_Rt, data_Rt))
+                return false;
+            
+            if (data_Rt.GetAsMemoryData(&reg_info_Rt, buffer, reg_info_Rt.byte_size, eByteOrderLittle, error) == 0)
+                return false;
+
+            if (!WriteMemory(context, address, buffer, reg_info_Rt.byte_size))
+                return false;
+            break;
+            
+        case MemOp_LOAD:
+            if (n == 31 || n == GetFramePointerRegisterNumber()) // if this store is based off of the sp or fp register
+                context.type = eContextPopRegisterOffStack;
+            else
+                context.type = eContextRegisterLoad;
+            context.SetAddress(address);
+
+            if (!ReadMemory (context, address, buffer, reg_info_Rt.byte_size))
+                return false;
+
+            if (data_Rt.SetFromMemoryData(&reg_info_Rt, buffer, reg_info_Rt.byte_size, eByteOrderLittle, error) == 0)
+                return false;
+
+            if (!WriteRegister (context, &reg_info_Rt, data_Rt))
+                return false;
+
+        default:
+            return false;
+    }
+
+    if (wback)
+    {
+        if (postindex)
+            address += offset;
+
+        if (n == 31)
+            context.type = eContextAdjustStackPointer;
+        else
+            context.type = eContextAdjustBaseRegister;
+        context.SetImmediateSigned (offset);
+
+        if (!WriteRegisterUnsigned (context, &reg_info_base, address))
+            return false;
+    }
+    return true;
+}
+
 bool
 EmulateInstructionARM64::EmulateB (const uint32_t opcode)
 {
diff --git a/source/Plugins/Instruction/ARM64/EmulateInstructionARM64.h b/source/Plugins/Instruction/ARM64/EmulateInstructionARM64.h
index b74eddeaaf639..d9333c2824d29 100644
--- a/source/Plugins/Instruction/ARM64/EmulateInstructionARM64.h
+++ b/source/Plugins/Instruction/ARM64/EmulateInstructionARM64.h
@@ -1,4 +1,4 @@
-//===-- EmulateInstructionARM64.h ------------------------------------*- C++ -*-===//
+//===-- EmulateInstructionARM64.h -------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -10,6 +10,10 @@
 #ifndef EmulateInstructionARM64_h_
 #define EmulateInstructionARM64_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Core/EmulateInstruction.h"
 #include "lldb/Core/Error.h"
 #include "lldb/Interpreter/OptionValue.h"
@@ -18,6 +22,14 @@
 class EmulateInstructionARM64 : public lldb_private::EmulateInstruction
 {
 public: 
+    EmulateInstructionARM64 (const lldb_private::ArchSpec &arch) :
+        EmulateInstruction (arch),
+        m_opcode_pstate (),
+        m_emulated_pstate (),
+        m_ignore_conditions (false)
+    {
+    }
+
     static void
     Initialize ();
     
@@ -50,61 +62,46 @@ public:
         return false;
     }
 
-    virtual lldb_private::ConstString
-    GetPluginName();
-
-    virtual lldb_private::ConstString
-    GetShortPluginName()
-    {
-        return GetPluginNameStatic();
-    }
+    lldb_private::ConstString
+    GetPluginName() override;
 
-    virtual uint32_t
-    GetPluginVersion()
+    uint32_t
+    GetPluginVersion() override
     {
         return 1;
     }
 
     bool
-    SetTargetTriple (const lldb_private::ArchSpec &arch);
+    SetTargetTriple(const lldb_private::ArchSpec &arch) override;
     
-    EmulateInstructionARM64 (const lldb_private::ArchSpec &arch) :
-        EmulateInstruction (arch),
-        m_opcode_pstate (),
-        m_emulated_pstate (),
-        m_ignore_conditions (false)
-    {
-    }
-
-    virtual bool
-    SupportsEmulatingInstructionsOfType (lldb_private::InstructionType inst_type)
+    bool
+    SupportsEmulatingInstructionsOfType(lldb_private::InstructionType inst_type) override
     {
         return SupportsEmulatingInstructionsOfTypeStatic (inst_type);
     }
 
-    virtual bool 
-    ReadInstruction ();
+    bool
+    ReadInstruction() override;
     
-    virtual bool
-    EvaluateInstruction (uint32_t evaluate_options);
+    bool
+    EvaluateInstruction(uint32_t evaluate_options) override;
     
-    virtual bool
-    TestEmulation (lldb_private::Stream *out_stream, 
-                   lldb_private::ArchSpec &arch, 
-                   lldb_private::OptionValueDictionary *test_data)
+    bool
+    TestEmulation(lldb_private::Stream *out_stream,
+                  lldb_private::ArchSpec &arch,
+                  lldb_private::OptionValueDictionary *test_data) override
     {
         return false;
     }
 
-    virtual bool
-    GetRegisterInfo (lldb::RegisterKind reg_kind,
-                     uint32_t reg_num, 
-                     lldb_private::RegisterInfo &reg_info);
+    bool
+    GetRegisterInfo(lldb::RegisterKind reg_kind,
+                    uint32_t reg_num,
+                    lldb_private::RegisterInfo &reg_info) override;
 
-    virtual bool
-    CreateFunctionEntryUnwind (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateFunctionEntryUnwind(lldb_private::UnwindPlan &unwind_plan) override;
 
-    
     typedef enum 
     {
         AddrMode_OFF, 
@@ -141,7 +138,6 @@ public:
         BitwiseOp_NOT, 
         BitwiseOp_RBIT
     } BitwiseOp;
-    
 
     typedef enum
     {
@@ -252,7 +248,6 @@ public:
     } ProcState;
 
 protected:
-
     typedef struct
     {
         uint32_t mask;
@@ -272,25 +267,19 @@ protected:
     BranchTo (const Context &context, uint32_t N, lldb::addr_t target);
 
     bool
-    ConditionHolds (const uint32_t cond, bool *is_conditional = nullptr);
+    ConditionHolds (const uint32_t cond);
 
     bool
     UsingAArch32 ();
 
     bool
-    Emulate_addsub_imm (const uint32_t opcode);
-
-    bool
-    Emulate_ldstpair_off (const uint32_t opcode);
+    EmulateADDSUBImm (const uint32_t opcode);
 
-    bool
-    Emulate_ldstpair_pre (const uint32_t opcode);
-
-    bool
-    Emulate_ldstpair_post (const uint32_t opcode);
+    template <AddrMode a_mode> bool
+    EmulateLDPSTP (const uint32_t opcode);
 
-    bool
-    Emulate_ldstpair (const uint32_t opcode, AddrMode a_mode);
+    template <AddrMode a_mode> bool
+    EmulateLDRSTRImm (const uint32_t opcode);
 
     bool
     EmulateB (const uint32_t opcode);
@@ -309,4 +298,4 @@ protected:
     bool m_ignore_conditions;
 };
 
-#endif  // EmulateInstructionARM64_h_
+#endif // EmulateInstructionARM64_h_
diff --git a/source/Plugins/Instruction/MIPS/EmulateInstructionMIPS.cpp b/source/Plugins/Instruction/MIPS/EmulateInstructionMIPS.cpp
index 66866c73a5cb2..d6485f686e2c9 100644
--- a/source/Plugins/Instruction/MIPS/EmulateInstructionMIPS.cpp
+++ b/source/Plugins/Instruction/MIPS/EmulateInstructionMIPS.cpp
@@ -29,6 +29,7 @@
 #include "lldb/Core/DataExtractor.h"
 #include "lldb/Core/Stream.h"
 #include "lldb/Symbol/UnwindPlan.h"
+#include "lldb/Target/Target.h"
 
 #include "llvm/ADT/STLExtras.h"
 
@@ -132,10 +133,6 @@ EmulateInstructionMIPS::EmulateInstructionMIPS (const lldb_private::ArchSpec &ar
         features += "+dsp,";
     if (arch_flags & ArchSpec::eMIPSAse_dspr2)
         features += "+dspr2,";
-    if (arch_flags & ArchSpec::eMIPSAse_mips16)
-        features += "+mips16,";
-    if (arch_flags & ArchSpec::eMIPSAse_micromips)
-        features += "+micromips,";
 
     m_reg_info.reset (target->createMCRegInfo (triple.getTriple()));
     assert (m_reg_info.get());
@@ -152,6 +149,21 @@ EmulateInstructionMIPS::EmulateInstructionMIPS (const lldb_private::ArchSpec &ar
 
     m_disasm.reset (target->createMCDisassembler (*m_subtype_info, *m_context));
     assert (m_disasm.get());
+
+    /* Create alternate disassembler for microMIPS */
+    if (arch_flags & ArchSpec::eMIPSAse_mips16)
+        features += "+mips16,";
+    else if (arch_flags & ArchSpec::eMIPSAse_micromips)
+        features += "+micromips,";
+
+    m_alt_subtype_info.reset (target->createMCSubtargetInfo (triple.getTriple(), cpu, features));
+    assert (m_alt_subtype_info.get());
+
+    m_alt_disasm.reset (target->createMCDisassembler (*m_alt_subtype_info, *m_context));
+    assert (m_alt_disasm.get());
+
+    m_next_inst_size = 0;
+    m_use_alt_disaasm = false;
 }
 
 void
@@ -221,41 +233,76 @@ EmulateInstructionMIPS::GetRegisterName (unsigned reg_num, bool alternate_name)
     {
         switch (reg_num)
         {
-            case gcc_dwarf_sp_mips:  return "r29"; 
-            case gcc_dwarf_r30_mips: return "r30"; 
-            case gcc_dwarf_ra_mips:  return "r31";
-            case gcc_dwarf_f0_mips:  return "f0";
-            case gcc_dwarf_f1_mips:  return "f1";
-            case gcc_dwarf_f2_mips:  return "f2";
-            case gcc_dwarf_f3_mips:  return "f3";
-            case gcc_dwarf_f4_mips:  return "f4";
-            case gcc_dwarf_f5_mips:  return "f5";
-            case gcc_dwarf_f6_mips:  return "f6";
-            case gcc_dwarf_f7_mips:  return "f7";
-            case gcc_dwarf_f8_mips:  return "f8";
-            case gcc_dwarf_f9_mips:  return "f9";
-            case gcc_dwarf_f10_mips: return "f10";
-            case gcc_dwarf_f11_mips: return "f11";
-            case gcc_dwarf_f12_mips: return "f12";
-            case gcc_dwarf_f13_mips: return "f13";
-            case gcc_dwarf_f14_mips: return "f14";
-            case gcc_dwarf_f15_mips: return "f15";
-            case gcc_dwarf_f16_mips: return "f16";
-            case gcc_dwarf_f17_mips: return "f17";
-            case gcc_dwarf_f18_mips: return "f18";
-            case gcc_dwarf_f19_mips: return "f19";
-            case gcc_dwarf_f20_mips: return "f20";
-            case gcc_dwarf_f21_mips: return "f21";
-            case gcc_dwarf_f22_mips: return "f22";
-            case gcc_dwarf_f23_mips: return "f23";
-            case gcc_dwarf_f24_mips: return "f24";
-            case gcc_dwarf_f25_mips: return "f25";
-            case gcc_dwarf_f26_mips: return "f26";
-            case gcc_dwarf_f27_mips: return "f27";
-            case gcc_dwarf_f28_mips: return "f28";
-            case gcc_dwarf_f29_mips: return "f29";
-            case gcc_dwarf_f30_mips: return "f30";
-            case gcc_dwarf_f31_mips: return "f31";
+            case dwarf_sp_mips:          return "r29"; 
+            case dwarf_r30_mips:         return "r30"; 
+            case dwarf_ra_mips:          return "r31";
+            case dwarf_f0_mips:          return "f0";
+            case dwarf_f1_mips:          return "f1";
+            case dwarf_f2_mips:          return "f2";
+            case dwarf_f3_mips:          return "f3";
+            case dwarf_f4_mips:          return "f4";
+            case dwarf_f5_mips:          return "f5";
+            case dwarf_f6_mips:          return "f6";
+            case dwarf_f7_mips:          return "f7";
+            case dwarf_f8_mips:          return "f8";
+            case dwarf_f9_mips:          return "f9";
+            case dwarf_f10_mips:         return "f10";
+            case dwarf_f11_mips:         return "f11";
+            case dwarf_f12_mips:         return "f12";
+            case dwarf_f13_mips:         return "f13";
+            case dwarf_f14_mips:         return "f14";
+            case dwarf_f15_mips:         return "f15";
+            case dwarf_f16_mips:         return "f16";
+            case dwarf_f17_mips:         return "f17";
+            case dwarf_f18_mips:         return "f18";
+            case dwarf_f19_mips:         return "f19";
+            case dwarf_f20_mips:         return "f20";
+            case dwarf_f21_mips:         return "f21";
+            case dwarf_f22_mips:         return "f22";
+            case dwarf_f23_mips:         return "f23";
+            case dwarf_f24_mips:         return "f24";
+            case dwarf_f25_mips:         return "f25";
+            case dwarf_f26_mips:         return "f26";
+            case dwarf_f27_mips:         return "f27";
+            case dwarf_f28_mips:         return "f28";
+            case dwarf_f29_mips:         return "f29";
+            case dwarf_f30_mips:         return "f30";
+            case dwarf_f31_mips:         return "f31";
+            case dwarf_w0_mips:          return "w0";
+            case dwarf_w1_mips:          return "w1";
+            case dwarf_w2_mips:          return "w2";
+            case dwarf_w3_mips:          return "w3";
+            case dwarf_w4_mips:          return "w4";
+            case dwarf_w5_mips:          return "w5";
+            case dwarf_w6_mips:          return "w6";
+            case dwarf_w7_mips:          return "w7";
+            case dwarf_w8_mips:          return "w8";
+            case dwarf_w9_mips:          return "w9";
+            case dwarf_w10_mips:         return "w10";
+            case dwarf_w11_mips:         return "w11";
+            case dwarf_w12_mips:         return "w12";
+            case dwarf_w13_mips:         return "w13";
+            case dwarf_w14_mips:         return "w14";
+            case dwarf_w15_mips:         return "w15";
+            case dwarf_w16_mips:         return "w16";
+            case dwarf_w17_mips:         return "w17";
+            case dwarf_w18_mips:         return "w18";
+            case dwarf_w19_mips:         return "w19";
+            case dwarf_w20_mips:         return "w20";
+            case dwarf_w21_mips:         return "w21";
+            case dwarf_w22_mips:         return "w22";
+            case dwarf_w23_mips:         return "w23";
+            case dwarf_w24_mips:         return "w24";
+            case dwarf_w25_mips:         return "w25";
+            case dwarf_w26_mips:         return "w26";
+            case dwarf_w27_mips:         return "w27";
+            case dwarf_w28_mips:         return "w28";
+            case dwarf_w29_mips:         return "w29";
+            case dwarf_w30_mips:         return "w30";
+            case dwarf_w31_mips:         return "w31";
+            case dwarf_mir_mips:         return "mir";
+            case dwarf_mcsr_mips:        return "mcsr";
+            case dwarf_config5_mips:     return "config5";
             default:
                 break;
         }
@@ -264,78 +311,113 @@ EmulateInstructionMIPS::GetRegisterName (unsigned reg_num, bool alternate_name)
 
     switch (reg_num)
     {
-        case gcc_dwarf_zero_mips:     return "r0";
-        case gcc_dwarf_r1_mips:       return "r1";
-        case gcc_dwarf_r2_mips:       return "r2";
-        case gcc_dwarf_r3_mips:       return "r3";
-        case gcc_dwarf_r4_mips:       return "r4";
-        case gcc_dwarf_r5_mips:       return "r5";
-        case gcc_dwarf_r6_mips:       return "r6";
-        case gcc_dwarf_r7_mips:       return "r7";
-        case gcc_dwarf_r8_mips:       return "r8";
-        case gcc_dwarf_r9_mips:       return "r9";
-        case gcc_dwarf_r10_mips:      return "r10";
-        case gcc_dwarf_r11_mips:      return "r11";
-        case gcc_dwarf_r12_mips:      return "r12";
-        case gcc_dwarf_r13_mips:      return "r13";
-        case gcc_dwarf_r14_mips:      return "r14";
-        case gcc_dwarf_r15_mips:      return "r15";
-        case gcc_dwarf_r16_mips:      return "r16";
-        case gcc_dwarf_r17_mips:      return "r17";
-        case gcc_dwarf_r18_mips:      return "r18";
-        case gcc_dwarf_r19_mips:      return "r19";
-        case gcc_dwarf_r20_mips:      return "r20";
-        case gcc_dwarf_r21_mips:      return "r21";
-        case gcc_dwarf_r22_mips:      return "r22";
-        case gcc_dwarf_r23_mips:      return "r23";
-        case gcc_dwarf_r24_mips:      return "r24";
-        case gcc_dwarf_r25_mips:      return "r25";
-        case gcc_dwarf_r26_mips:      return "r26";
-        case gcc_dwarf_r27_mips:      return "r27";
-        case gcc_dwarf_gp_mips:       return "gp";
-        case gcc_dwarf_sp_mips:       return "sp";
-        case gcc_dwarf_r30_mips:      return "fp";
-        case gcc_dwarf_ra_mips:       return "ra";
-        case gcc_dwarf_sr_mips:       return "sr";
-        case gcc_dwarf_lo_mips:       return "lo";
-        case gcc_dwarf_hi_mips:       return "hi";
-        case gcc_dwarf_bad_mips:      return "bad";
-        case gcc_dwarf_cause_mips:    return "cause";
-        case gcc_dwarf_pc_mips:       return "pc";
-        case gcc_dwarf_f0_mips:       return "f0";
-        case gcc_dwarf_f1_mips:       return "f1";
-        case gcc_dwarf_f2_mips:       return "f2";
-        case gcc_dwarf_f3_mips:       return "f3";
-        case gcc_dwarf_f4_mips:       return "f4";
-        case gcc_dwarf_f5_mips:       return "f5";
-        case gcc_dwarf_f6_mips:       return "f6";
-        case gcc_dwarf_f7_mips:       return "f7";
-        case gcc_dwarf_f8_mips:       return "f8";
-        case gcc_dwarf_f9_mips:       return "f9";
-        case gcc_dwarf_f10_mips:      return "f10";
-        case gcc_dwarf_f11_mips:      return "f11";
-        case gcc_dwarf_f12_mips:      return "f12";
-        case gcc_dwarf_f13_mips:      return "f13";
-        case gcc_dwarf_f14_mips:      return "f14";
-        case gcc_dwarf_f15_mips:      return "f15";
-        case gcc_dwarf_f16_mips:      return "f16";
-        case gcc_dwarf_f17_mips:      return "f17";
-        case gcc_dwarf_f18_mips:      return "f18";
-        case gcc_dwarf_f19_mips:      return "f19";
-        case gcc_dwarf_f20_mips:      return "f20";
-        case gcc_dwarf_f21_mips:      return "f21";
-        case gcc_dwarf_f22_mips:      return "f22";
-        case gcc_dwarf_f23_mips:      return "f23";
-        case gcc_dwarf_f24_mips:      return "f24";
-        case gcc_dwarf_f25_mips:      return "f25";
-        case gcc_dwarf_f26_mips:      return "f26";
-        case gcc_dwarf_f27_mips:      return "f27";
-        case gcc_dwarf_f28_mips:      return "f28";
-        case gcc_dwarf_f29_mips:      return "f29";
-        case gcc_dwarf_f30_mips:      return "f30";
-        case gcc_dwarf_f31_mips:      return "f31";
-        case gcc_dwarf_fcsr_mips:     return "fcsr";
-        case gcc_dwarf_fir_mips:      return "fir";
+        case dwarf_zero_mips:         return "r0";
+        case dwarf_r1_mips:           return "r1";
+        case dwarf_r2_mips:           return "r2";
+        case dwarf_r3_mips:           return "r3";
+        case dwarf_r4_mips:           return "r4";
+        case dwarf_r5_mips:           return "r5";
+        case dwarf_r6_mips:           return "r6";
+        case dwarf_r7_mips:           return "r7";
+        case dwarf_r8_mips:           return "r8";
+        case dwarf_r9_mips:           return "r9";
+        case dwarf_r10_mips:          return "r10";
+        case dwarf_r11_mips:          return "r11";
+        case dwarf_r12_mips:          return "r12";
+        case dwarf_r13_mips:          return "r13";
+        case dwarf_r14_mips:          return "r14";
+        case dwarf_r15_mips:          return "r15";
+        case dwarf_r16_mips:          return "r16";
+        case dwarf_r17_mips:          return "r17";
+        case dwarf_r18_mips:          return "r18";
+        case dwarf_r19_mips:          return "r19";
+        case dwarf_r20_mips:          return "r20";
+        case dwarf_r21_mips:          return "r21";
+        case dwarf_r22_mips:          return "r22";
+        case dwarf_r23_mips:          return "r23";
+        case dwarf_r24_mips:          return "r24";
+        case dwarf_r25_mips:          return "r25";
+        case dwarf_r26_mips:          return "r26";
+        case dwarf_r27_mips:          return "r27";
+        case dwarf_gp_mips:           return "gp";
+        case dwarf_sp_mips:           return "sp";
+        case dwarf_r30_mips:          return "fp";
+        case dwarf_ra_mips:           return "ra";
+        case dwarf_sr_mips:           return "sr";
+        case dwarf_lo_mips:           return "lo";
+        case dwarf_hi_mips:           return "hi";
+        case dwarf_bad_mips:          return "bad";
+        case dwarf_cause_mips:        return "cause";
+        case dwarf_pc_mips:           return "pc";
+        case dwarf_f0_mips:           return "f0";
+        case dwarf_f1_mips:           return "f1";
+        case dwarf_f2_mips:           return "f2";
+        case dwarf_f3_mips:           return "f3";
+        case dwarf_f4_mips:           return "f4";
+        case dwarf_f5_mips:           return "f5";
+        case dwarf_f6_mips:           return "f6";
+        case dwarf_f7_mips:           return "f7";
+        case dwarf_f8_mips:           return "f8";
+        case dwarf_f9_mips:           return "f9";
+        case dwarf_f10_mips:          return "f10";
+        case dwarf_f11_mips:          return "f11";
+        case dwarf_f12_mips:          return "f12";
+        case dwarf_f13_mips:          return "f13";
+        case dwarf_f14_mips:          return "f14";
+        case dwarf_f15_mips:          return "f15";
+        case dwarf_f16_mips:          return "f16";
+        case dwarf_f17_mips:          return "f17";
+        case dwarf_f18_mips:          return "f18";
+        case dwarf_f19_mips:          return "f19";
+        case dwarf_f20_mips:          return "f20";
+        case dwarf_f21_mips:          return "f21";
+        case dwarf_f22_mips:          return "f22";
+        case dwarf_f23_mips:          return "f23";
+        case dwarf_f24_mips:          return "f24";
+        case dwarf_f25_mips:          return "f25";
+        case dwarf_f26_mips:          return "f26";
+        case dwarf_f27_mips:          return "f27";
+        case dwarf_f28_mips:          return "f28";
+        case dwarf_f29_mips:          return "f29";
+        case dwarf_f30_mips:          return "f30";
+        case dwarf_f31_mips:          return "f31";
+        case dwarf_fcsr_mips:         return "fcsr";
+        case dwarf_fir_mips:          return "fir";
+        case dwarf_w0_mips:           return "w0";
+        case dwarf_w1_mips:           return "w1";
+        case dwarf_w2_mips:           return "w2";
+        case dwarf_w3_mips:           return "w3";
+        case dwarf_w4_mips:           return "w4";
+        case dwarf_w5_mips:           return "w5";
+        case dwarf_w6_mips:           return "w6";
+        case dwarf_w7_mips:           return "w7";
+        case dwarf_w8_mips:           return "w8";
+        case dwarf_w9_mips:           return "w9";
+        case dwarf_w10_mips:          return "w10";
+        case dwarf_w11_mips:          return "w11";
+        case dwarf_w12_mips:          return "w12";
+        case dwarf_w13_mips:          return "w13";
+        case dwarf_w14_mips:          return "w14";
+        case dwarf_w15_mips:          return "w15";
+        case dwarf_w16_mips:          return "w16";
+        case dwarf_w17_mips:          return "w17";
+        case dwarf_w18_mips:          return "w18";
+        case dwarf_w19_mips:          return "w19";
+        case dwarf_w20_mips:          return "w20";
+        case dwarf_w21_mips:          return "w21";
+        case dwarf_w22_mips:          return "w22";
+        case dwarf_w23_mips:          return "w23";
+        case dwarf_w24_mips:          return "w24";
+        case dwarf_w25_mips:          return "w25";
+        case dwarf_w26_mips:          return "w26";
+        case dwarf_w27_mips:          return "w27";
+        case dwarf_w28_mips:          return "w28";
+        case dwarf_w29_mips:          return "w29";
+        case dwarf_w30_mips:          return "w30";
+        case dwarf_w31_mips:          return "w31";
+        case dwarf_mcsr_mips:         return "mcsr";
+        case dwarf_mir_mips:          return "mir";
+        case dwarf_config5_mips:      return "config5";
     }
     return nullptr;
 }
@@ -347,11 +429,11 @@ EmulateInstructionMIPS::GetRegisterInfo (RegisterKind reg_kind, uint32_t reg_num
     {
         switch (reg_num)
         {
-            case LLDB_REGNUM_GENERIC_PC:    reg_kind = eRegisterKindDWARF; reg_num = gcc_dwarf_pc_mips; break;
-            case LLDB_REGNUM_GENERIC_SP:    reg_kind = eRegisterKindDWARF; reg_num = gcc_dwarf_sp_mips; break;
-            case LLDB_REGNUM_GENERIC_FP:    reg_kind = eRegisterKindDWARF; reg_num = gcc_dwarf_r30_mips; break;
-            case LLDB_REGNUM_GENERIC_RA:    reg_kind = eRegisterKindDWARF; reg_num = gcc_dwarf_ra_mips; break;
-            case LLDB_REGNUM_GENERIC_FLAGS: reg_kind = eRegisterKindDWARF; reg_num = gcc_dwarf_sr_mips; break;
+            case LLDB_REGNUM_GENERIC_PC:    reg_kind = eRegisterKindDWARF; reg_num = dwarf_pc_mips; break;
+            case LLDB_REGNUM_GENERIC_SP:    reg_kind = eRegisterKindDWARF; reg_num = dwarf_sp_mips; break;
+            case LLDB_REGNUM_GENERIC_FP:    reg_kind = eRegisterKindDWARF; reg_num = dwarf_r30_mips; break;
+            case LLDB_REGNUM_GENERIC_RA:    reg_kind = eRegisterKindDWARF; reg_num = dwarf_ra_mips; break;
+            case LLDB_REGNUM_GENERIC_FLAGS: reg_kind = eRegisterKindDWARF; reg_num = dwarf_sr_mips; break;
             default:
                 return false;
         }
@@ -362,18 +444,24 @@ EmulateInstructionMIPS::GetRegisterInfo (RegisterKind reg_kind, uint32_t reg_num
        ::memset (&reg_info, 0, sizeof(RegisterInfo));
        ::memset (reg_info.kinds, LLDB_INVALID_REGNUM, sizeof(reg_info.kinds));
 
-       if (reg_num == gcc_dwarf_sr_mips || reg_num == gcc_dwarf_fcsr_mips || reg_num == gcc_dwarf_fir_mips)
+       if (reg_num == dwarf_sr_mips || reg_num == dwarf_fcsr_mips || reg_num == dwarf_fir_mips || reg_num == dwarf_mcsr_mips || reg_num == dwarf_mir_mips || reg_num == dwarf_config5_mips)
        {
            reg_info.byte_size = 4;
            reg_info.format = eFormatHex;
            reg_info.encoding = eEncodingUint;
        }
-       else if ((int)reg_num >= gcc_dwarf_zero_mips && (int)reg_num <= gcc_dwarf_f31_mips)
+       else if ((int)reg_num >= dwarf_zero_mips && (int)reg_num <= dwarf_f31_mips)
        {
            reg_info.byte_size = 4;
            reg_info.format = eFormatHex;
            reg_info.encoding = eEncodingUint;
        }
+       else if ((int)reg_num >= dwarf_w0_mips && (int)reg_num <= dwarf_w31_mips)
+       {
+           reg_info.byte_size = 16;
+           reg_info.format = eFormatVectorOfUInt8;
+           reg_info.encoding = eEncodingVector;
+       }
        else
        {
            return false;
@@ -385,11 +473,11 @@ EmulateInstructionMIPS::GetRegisterInfo (RegisterKind reg_kind, uint32_t reg_num
 
        switch (reg_num)
        {
-           case gcc_dwarf_r30_mips: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP; break;
-           case gcc_dwarf_ra_mips: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_RA; break;
-           case gcc_dwarf_sp_mips: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP; break;
-           case gcc_dwarf_pc_mips: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC; break;
-           case gcc_dwarf_sr_mips: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS; break;
+           case dwarf_r30_mips: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP; break;
+           case dwarf_ra_mips: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_RA; break;
+           case dwarf_sp_mips: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP; break;
+           case dwarf_pc_mips: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC; break;
+           case dwarf_sr_mips: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS; break;
            default: break;
        }
        return true;
@@ -409,6 +497,96 @@ EmulateInstructionMIPS::GetOpcodeForInstruction (const char *op_name)
         { "ADDiu",      &EmulateInstructionMIPS::Emulate_ADDiu,       "ADDIU rt,rs,immediate"    },
         { "SW",         &EmulateInstructionMIPS::Emulate_SW,          "SW rt,offset(rs)"         },
         { "LW",         &EmulateInstructionMIPS::Emulate_LW,          "LW rt,offset(base)"       },
+        //----------------------------------------------------------------------
+        // MicroMIPS Prologue/Epilogue instructions
+        //----------------------------------------------------------------------
+        { "ADDIUSP_MM", &EmulateInstructionMIPS::Emulate_ADDIUSP,     "ADDIU immediate"            },
+        { "ADDIUS5_MM", &EmulateInstructionMIPS::Emulate_ADDIUS5,     "ADDIUS5 rd,immediate"       },
+        { "SWSP_MM",    &EmulateInstructionMIPS::Emulate_SWSP,        "SWSP rt,offset(sp)"         },
+        { "SWM16_MM",   &EmulateInstructionMIPS::Emulate_SWM16_32,    "SWM16 reglist,offset(sp)"   },
+        { "SWM32_MM",   &EmulateInstructionMIPS::Emulate_SWM16_32,    "SWM32 reglist,offset(base)" },
+        { "SWP_MM",     &EmulateInstructionMIPS::Emulate_SWM16_32,    "SWP rs1,offset(base)"       },
+        { "LWSP_MM",    &EmulateInstructionMIPS::Emulate_LWSP,        "LWSP rt,offset(sp)"         },
+        { "LWM16_MM",   &EmulateInstructionMIPS::Emulate_LWM16_32,    "LWM16 reglist,offset(sp)"   },
+        { "LWM32_MM",   &EmulateInstructionMIPS::Emulate_LWM16_32,    "LWM32 reglist,offset(base)" },
+        { "LWP_MM",     &EmulateInstructionMIPS::Emulate_LWM16_32,    "LWP rd,offset(base)"        },
+        { "JRADDIUSP",  &EmulateInstructionMIPS::Emulate_JRADDIUSP,   "JRADDIUSP immediate"        },
+        //----------------------------------------------------------------------
+
+        // Load/Store  instructions
+        //----------------------------------------------------------------------
+        /* Following list of emulated instructions are required by implementation of hardware watchpoint
+           for MIPS in lldb. As we just need the address accessed by instructions, we have generalised 
+           all these instructions in 2 functions depending on their addressing modes */
+
+        { "LB",         &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LB    rt, offset(base)" },
+        { "LBE",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LBE   rt, offset(base)" },
+        { "LBU",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LBU   rt, offset(base)" },
+        { "LBUE",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LBUE  rt, offset(base)" },
+        { "LDC1",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LDC1  ft, offset(base)" },
+        { "LD",         &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LD    rt, offset(base)" },
+        { "LDL",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LDL   rt, offset(base)" },
+        { "LDR",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LDR   rt, offset(base)" },
+        { "LLD",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LLD   rt, offset(base)" },
+        { "LDC2",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LDC2  rt, offset(base)" },
+        { "LDXC1",      &EmulateInstructionMIPS::Emulate_LDST_Reg,          "LDXC1 fd, index (base)" },
+        { "LH",         &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LH    rt, offset(base)" },
+        { "LHE",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LHE   rt, offset(base)" },
+        { "LHU",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LHU   rt, offset(base)" },
+        { "LHUE",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LHUE  rt, offset(base)" },
+        { "LL",         &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LL    rt, offset(base)" },
+        { "LLE",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LLE   rt, offset(base)" },
+        { "LUXC1",      &EmulateInstructionMIPS::Emulate_LDST_Reg,          "LUXC1 fd, index (base)" },
+        { "LW",         &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LW    rt, offset(base)" },
+        { "LWC1",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LWC1  ft, offset(base)" },
+        { "LWC2",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LWC2  rt, offset(base)" },
+        { "LWE",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LWE   rt, offset(base)" },
+        { "LWL",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LWL   rt, offset(base)" },
+        { "LWLE",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LWLE  rt, offset(base)" },
+        { "LWR",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LWR   rt, offset(base)" },
+        { "LWRE",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LWRE  rt, offset(base)" },
+        { "LWXC1",      &EmulateInstructionMIPS::Emulate_LDST_Reg,          "LWXC1 fd, index (base)" },
+        { "LLX",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LLX   rt, offset(base)" },
+        { "LLXE",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LLXE  rt, offset(base)" },
+        { "LLDX",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "LLDX  rt, offset(base)" },
+
+        { "SB",         &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SB    rt, offset(base)" },
+        { "SBE",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SBE   rt, offset(base)" },
+        { "SC",         &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SC    rt, offset(base)" },
+        { "SCE",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SCE   rt, offset(base)" },
+        { "SCD",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SCD   rt, offset(base)" },
+        { "SD",         &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SD    rt, offset(base)" },
+        { "SDL",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SDL   rt, offset(base)" },
+        { "SDR",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SDR   rt, offset(base)" },
+        { "SDC1",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SDC1  ft, offset(base)" },
+        { "SDC2",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SDC2  rt, offset(base)" },
+        { "SDXC1",      &EmulateInstructionMIPS::Emulate_LDST_Reg,          "SDXC1 fs, index(base)"  },
+        { "SH",         &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SH    rt, offset(base)" },
+        { "SHE",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SHE   rt, offset(base)" },
+        { "SUXC1",      &EmulateInstructionMIPS::Emulate_LDST_Reg,          "SUXC1 fs, index (base)" },
+        { "SWC1",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SWC1  ft, offset(base)" },
+        { "SWC2",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SWC2  rt, offset(base)" },
+        { "SWE",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SWE   rt, offset(base)" },
+        { "SWL",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SWL   rt, offset(base)" },
+        { "SWLE",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SWLE  rt, offset(base)" },
+        { "SWR",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SWR   rt, offset(base)" },
+        { "SWRE",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SWRE  rt, offset(base)" },
+        { "SWXC1",      &EmulateInstructionMIPS::Emulate_LDST_Reg,          "SWXC1 fs, index (base)" },
+        { "SCX",        &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SCX   rt, offset(base)" },
+        { "SCXE",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SCXE  rt, offset(base)" },
+        { "SCDX",       &EmulateInstructionMIPS::Emulate_LDST_Imm,          "SCDX  rt, offset(base)" },
+
+        //----------------------------------------------------------------------
+        // MicroMIPS Load/Store instructions
+        //----------------------------------------------------------------------
+        { "LBU16_MM",      &EmulateInstructionMIPS::Emulate_LDST_Imm,       "LBU16 rt, decoded_offset(base)"       },
+        { "LHU16_MM",      &EmulateInstructionMIPS::Emulate_LDST_Imm,       "LHU16 rt, left_shifted_offset(base)"  },
+        { "LW16_MM",       &EmulateInstructionMIPS::Emulate_LDST_Imm,       "LW16  rt, left_shifted_offset(base)"  },
+        { "LWGP_MM",       &EmulateInstructionMIPS::Emulate_LDST_Imm,       "LWGP  rt, left_shifted_offset(gp)"    },
+        { "SH16_MM",       &EmulateInstructionMIPS::Emulate_LDST_Imm,       "SH16  rt, left_shifted_offset(base)"  },
+        { "SW16_MM",       &EmulateInstructionMIPS::Emulate_LDST_Imm,       "SW16  rt, left_shifted_offset(base)"  },
+        { "SW_MM",         &EmulateInstructionMIPS::Emulate_LDST_Imm,       "SWSP  rt, left_shifted_offset(base)"  },
+        { "SB16_MM",       &EmulateInstructionMIPS::Emulate_LDST_Imm,       "SB16  rt, offset(base)"               },
 
         //----------------------------------------------------------------------
         // Branch instructions
@@ -471,6 +649,34 @@ EmulateInstructionMIPS::GetOpcodeForInstruction (const char *op_name)
         { "BC1ANY2T",   &EmulateInstructionMIPS::Emulate_BC1ANY2T,    "BC1ANY2T cc, offset"       },
         { "BC1ANY4F",   &EmulateInstructionMIPS::Emulate_BC1ANY4F,    "BC1ANY4F cc, offset"       },
         { "BC1ANY4T",   &EmulateInstructionMIPS::Emulate_BC1ANY4T,    "BC1ANY4T cc, offset"       },
+        { "BNZ_B",      &EmulateInstructionMIPS::Emulate_BNZB,        "BNZ.b wt,s16"              },
+        { "BNZ_H",      &EmulateInstructionMIPS::Emulate_BNZH,        "BNZ.h wt,s16"              },
+        { "BNZ_W",      &EmulateInstructionMIPS::Emulate_BNZW,        "BNZ.w wt,s16"              },
+        { "BNZ_D",      &EmulateInstructionMIPS::Emulate_BNZD,        "BNZ.d wt,s16"              },
+        { "BZ_B",       &EmulateInstructionMIPS::Emulate_BZB,         "BZ.b wt,s16"               },
+        { "BZ_H",       &EmulateInstructionMIPS::Emulate_BZH,         "BZ.h wt,s16"               },
+        { "BZ_W",       &EmulateInstructionMIPS::Emulate_BZW,         "BZ.w wt,s16"               },
+        { "BZ_D",       &EmulateInstructionMIPS::Emulate_BZD,         "BZ.d wt,s16"               },
+        { "BNZ_V",      &EmulateInstructionMIPS::Emulate_BNZV,        "BNZ.V wt,s16"              },
+        { "BZ_V",       &EmulateInstructionMIPS::Emulate_BZV,         "BZ.V wt,s16"               },
+
+        //----------------------------------------------------------------------
+        // MicroMIPS Branch instructions
+        //----------------------------------------------------------------------
+        { "B16_MM",     &EmulateInstructionMIPS::Emulate_B16_MM,        "B16 offset"              },
+        { "BEQZ16_MM",  &EmulateInstructionMIPS::Emulate_Branch_MM,     "BEQZ16 rs, offset"       },
+        { "BNEZ16_MM",  &EmulateInstructionMIPS::Emulate_Branch_MM,     "BNEZ16 rs, offset"       },
+        { "BEQZC_MM",   &EmulateInstructionMIPS::Emulate_Branch_MM,     "BEQZC rs, offset"        },
+        { "BNEZC_MM",   &EmulateInstructionMIPS::Emulate_Branch_MM,     "BNEZC rs, offset"        },
+        { "BGEZALS_MM", &EmulateInstructionMIPS::Emulate_Branch_MM,     "BGEZALS rs, offset"      },
+        { "BLTZALS_MM", &EmulateInstructionMIPS::Emulate_Branch_MM,     "BLTZALS rs, offset"      },
+        { "JALR16_MM",  &EmulateInstructionMIPS::Emulate_JALRx16_MM,    "JALR16 rs"               },
+        { "JALRS16_MM", &EmulateInstructionMIPS::Emulate_JALRx16_MM,    "JALRS16 rs"              },
+        { "JR16_MM",    &EmulateInstructionMIPS::Emulate_JR,            "JR16 rs rs"              },
+        { "JRC16_MM",   &EmulateInstructionMIPS::Emulate_JR,            "JRC16 rs rs"             },
+        { "JALS_MM",    &EmulateInstructionMIPS::Emulate_JALx,          "JALS target"             },
+        { "JALX_MM",    &EmulateInstructionMIPS::Emulate_JALx,          "JALX target"             },
+        { "JALRS_MM",   &EmulateInstructionMIPS::Emulate_JALRS,         "JALRS rt, rs"            },
     };
 
     static const size_t k_num_mips_opcodes = llvm::array_lengthof(g_opcodes);
@@ -484,6 +690,76 @@ EmulateInstructionMIPS::GetOpcodeForInstruction (const char *op_name)
     return NULL;
 }
 
+uint32_t
+EmulateInstructionMIPS::GetSizeOfInstruction (lldb_private::DataExtractor& data, uint64_t inst_addr)
+{
+    uint64_t next_inst_size = 0;
+    llvm::MCInst mc_insn;
+    llvm::MCDisassembler::DecodeStatus decode_status;
+    llvm::ArrayRef<uint8_t> raw_insn (data.GetDataStart(), data.GetByteSize());
+
+    if (m_use_alt_disaasm)
+        decode_status = m_alt_disasm->getInstruction (mc_insn, next_inst_size, raw_insn, inst_addr, llvm::nulls(), llvm::nulls());
+    else
+        decode_status = m_disasm->getInstruction (mc_insn, next_inst_size, raw_insn, inst_addr, llvm::nulls(), llvm::nulls());
+
+    if (decode_status != llvm::MCDisassembler::Success)
+        return false;
+    
+    return m_insn_info->get(mc_insn.getOpcode()).getSize();
+}
+
+bool
+EmulateInstructionMIPS::SetInstruction (const Opcode &insn_opcode, const Address &inst_addr, Target *target)
+{
+    m_use_alt_disaasm = false;
+
+    if (EmulateInstruction::SetInstruction (insn_opcode, inst_addr, target))
+    {
+        if (inst_addr.GetAddressClass() == eAddressClassCodeAlternateISA)
+        {
+            Error error;
+            lldb::addr_t load_addr = LLDB_INVALID_ADDRESS;
+
+            /* 
+             * The address belongs to microMIPS function. To find the size of
+             * next instruction use microMIPS disassembler.
+            */
+             m_use_alt_disaasm = true;
+
+            uint32_t current_inst_size = insn_opcode.GetByteSize();
+            uint8_t buf[sizeof(uint32_t)];
+            uint64_t next_inst_addr = (m_addr & (~1ull)) + current_inst_size;
+            Address next_addr (next_inst_addr);
+
+            const size_t bytes_read = target->ReadMemory (next_addr,      /* Address of next instruction */
+                                                          true,           /* prefer_file_cache */
+                                                          buf,
+                                                          sizeof(uint32_t), 
+                                                          error,
+                                                          &load_addr);
+
+            if (bytes_read == 0)
+                return true;
+
+            DataExtractor data (buf, sizeof(uint32_t), GetByteOrder(), GetAddressByteSize());
+            m_next_inst_size = GetSizeOfInstruction (data, next_inst_addr);
+            return true;
+        }
+        else
+        {
+            /* 
+             * If the address class is not eAddressClassCodeAlternateISA then
+             * the function is not microMIPS. In this case instruction size is 
+             * always 4 bytes.
+            */
+            m_next_inst_size = 4;
+            return true;
+        }
+    }
+    return false;
+}
+
 bool 
 EmulateInstructionMIPS::ReadInstruction ()
 {
@@ -514,7 +790,11 @@ EmulateInstructionMIPS::EvaluateInstruction (uint32_t evaluate_options)
     {
         llvm::MCDisassembler::DecodeStatus decode_status;
         llvm::ArrayRef<uint8_t> raw_insn (data.GetDataStart(), data.GetByteSize());
-        decode_status = m_disasm->getInstruction (mc_insn, insn_size, raw_insn, m_addr, llvm::nulls(), llvm::nulls());
+        if (m_use_alt_disaasm)
+            decode_status = m_alt_disasm->getInstruction (mc_insn, insn_size, raw_insn, m_addr, llvm::nulls(), llvm::nulls());
+        else
+            decode_status = m_disasm->getInstruction (mc_insn, insn_size, raw_insn, m_addr, llvm::nulls(), llvm::nulls());
+
         if (decode_status != llvm::MCDisassembler::Success)
             return false;
     }
@@ -542,7 +822,7 @@ EmulateInstructionMIPS::EvaluateInstruction (uint32_t evaluate_options)
 
     if (auto_advance_pc)
     {
-        old_pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+        old_pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
         if (!success)
             return false;
     }
@@ -554,7 +834,7 @@ EmulateInstructionMIPS::EvaluateInstruction (uint32_t evaluate_options)
 
     if (auto_advance_pc)
     {
-        new_pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+        new_pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
         if (!success)
             return false;
 
@@ -563,7 +843,7 @@ EmulateInstructionMIPS::EvaluateInstruction (uint32_t evaluate_options)
         {
             new_pc += 4;
             Context context;
-            if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, new_pc))
+            if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, new_pc))
                 return false;
         }
     }
@@ -581,10 +861,10 @@ EmulateInstructionMIPS::CreateFunctionEntryUnwind (UnwindPlan &unwind_plan)
     const bool can_replace = false;
 
     // Our previous Call Frame Address is the stack pointer
-    row->GetCFAValue().SetIsRegisterPlusOffset(gcc_dwarf_sp_mips, 0);
+    row->GetCFAValue().SetIsRegisterPlusOffset(dwarf_sp_mips, 0);
 
     // Our previous PC is in the RA
-    row->SetRegisterLocationToRegister(gcc_dwarf_pc_mips, gcc_dwarf_ra_mips, can_replace);
+    row->SetRegisterLocationToRegister(dwarf_pc_mips, dwarf_ra_mips, can_replace);
 
     unwind_plan.AppendRow (row);
 
@@ -592,6 +872,7 @@ EmulateInstructionMIPS::CreateFunctionEntryUnwind (UnwindPlan &unwind_plan)
     unwind_plan.SetSourceName ("EmulateInstructionMIPS");
     unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
     unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolYes);
+    unwind_plan.SetReturnAddressRegister (dwarf_ra_mips);
 
     return true;
 }
@@ -601,18 +882,18 @@ EmulateInstructionMIPS::nonvolatile_reg_p (uint32_t regnum)
 {
     switch (regnum)
     {
-        case gcc_dwarf_r16_mips:
-        case gcc_dwarf_r17_mips:
-        case gcc_dwarf_r18_mips:
-        case gcc_dwarf_r19_mips:
-        case gcc_dwarf_r20_mips:
-        case gcc_dwarf_r21_mips:
-        case gcc_dwarf_r22_mips:
-        case gcc_dwarf_r23_mips:
-        case gcc_dwarf_gp_mips:
-        case gcc_dwarf_sp_mips:
-        case gcc_dwarf_r30_mips:
-        case gcc_dwarf_ra_mips:
+        case dwarf_r16_mips:
+        case dwarf_r17_mips:
+        case dwarf_r18_mips:
+        case dwarf_r19_mips:
+        case dwarf_r20_mips:
+        case dwarf_r21_mips:
+        case dwarf_r22_mips:
+        case dwarf_r23_mips:
+        case dwarf_gp_mips:
+        case dwarf_sp_mips:
+        case dwarf_r30_mips:
+        case dwarf_ra_mips:
             return true;
         default:
             return false;
@@ -633,10 +914,10 @@ EmulateInstructionMIPS::Emulate_ADDiu (llvm::MCInst& insn)
     src = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
 
     /* Check if this is addiu sp,<src>,imm16 */
-    if (dst == gcc_dwarf_sp_mips)
+    if (dst == dwarf_sp_mips)
     {
         /* read <src> register */
-        uint64_t src_opd_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + src, 0, &success);
+        uint64_t src_opd_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + src, 0, &success);
         if (!success)
             return false;
 
@@ -644,13 +925,13 @@ EmulateInstructionMIPS::Emulate_ADDiu (llvm::MCInst& insn)
 
         Context context;
         RegisterInfo reg_info_sp;
-        if (GetRegisterInfo (eRegisterKindDWARF, gcc_dwarf_sp_mips, reg_info_sp))
+        if (GetRegisterInfo (eRegisterKindDWARF, dwarf_sp_mips, reg_info_sp))
             context.SetRegisterPlusOffset (reg_info_sp, imm);
 
         /* We are allocating bytes on stack */
         context.type = eContextAdjustStackPointer;
 
-        WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_sp_mips, result);
+        WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_sp_mips, result);
     }
     
     return true;
@@ -663,30 +944,206 @@ EmulateInstructionMIPS::Emulate_SW (llvm::MCInst& insn)
     uint32_t imm16 = insn.getOperand(2).getImm();
     uint32_t imm = SignedBits(imm16, 15, 0);
     uint32_t src, base;
+    int32_t address;
+    Context bad_vaddr_context;
+
+    RegisterInfo reg_info_base;
 
     src = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     base = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
 
+    if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + base, reg_info_base))
+        return false;
+
+    /* read base register */
+    address = (int32_t)ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + base, 0, &success);
+    if (!success)
+        return false;
+
+    /* destination address */
+    address = address + imm;
+
+    /* Set the bad_vaddr register with base address used in the instruction */
+    bad_vaddr_context.type = eContextInvalid;
+    WriteRegisterUnsigned (bad_vaddr_context, eRegisterKindDWARF, dwarf_bad_mips, address);
+
     /* We look for sp based non-volatile register stores */
-    if (base == gcc_dwarf_sp_mips && nonvolatile_reg_p (src))
+    if (base == dwarf_sp_mips && nonvolatile_reg_p (src))
+    {
+
+        RegisterInfo reg_info_src;
+
+        if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + src, reg_info_src))
+            return false;
+
+        Context context;
+        RegisterValue data_src;
+        context.type = eContextPushRegisterOnStack;
+        context.SetRegisterToRegisterPlusOffset (reg_info_src, reg_info_base, 0);
+
+        uint8_t buffer [RegisterValue::kMaxRegisterByteSize];
+        Error error;
+
+        if (!ReadRegister (&reg_info_base, data_src))
+            return false;
+
+        if (data_src.GetAsMemoryData (&reg_info_src, buffer, reg_info_src.byte_size, eByteOrderLittle, error) == 0)
+            return false;
+
+        if (!WriteMemory (context, address, buffer, reg_info_src.byte_size))
+            return false;
+
+        return true;
+    }
+
+    return false;
+}
+
+bool
+EmulateInstructionMIPS::Emulate_LW (llvm::MCInst& insn)
+{
+  bool success =false;
+    uint32_t src, base;
+    int32_t imm, address;
+    Context bad_vaddr_context;
+
+    src = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
+    base = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
+    imm = insn.getOperand(2).getImm();
+
+    RegisterInfo reg_info_base;
+    if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + base, reg_info_base))
+        return false;
+
+    /* read base register */
+    address = (int32_t)ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + base, 0, &success);
+    if (!success)
+        return false;
+
+    /* destination address */
+    address = address + imm;
+
+    /* Set the bad_vaddr register with base address used in the instruction */
+    bad_vaddr_context.type = eContextInvalid;
+    WriteRegisterUnsigned (bad_vaddr_context, eRegisterKindDWARF, dwarf_bad_mips, address);
+
+    if (base == dwarf_sp_mips && nonvolatile_reg_p (src))
     {
-        uint32_t address;
-        RegisterInfo reg_info_base;
+        RegisterValue data_src;
         RegisterInfo reg_info_src;
 
-        if (!GetRegisterInfo (eRegisterKindDWARF, gcc_dwarf_zero_mips + base, reg_info_base)
-            || !GetRegisterInfo (eRegisterKindDWARF, gcc_dwarf_zero_mips + src, reg_info_src))
+        if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + src, reg_info_src))
             return false;
 
-        /* read SP */
-        address = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + base, 0, &success);
+        Context context;
+        context.type = eContextPopRegisterOffStack;
+        context.SetAddress (address);
+
+        if (!WriteRegister (context, &reg_info_src, data_src))
+            return false;
+
+        return true;
+    }
+
+    return false;
+}
+
+bool
+EmulateInstructionMIPS::Emulate_ADDIUSP (llvm::MCInst& insn)
+{
+    bool success = false;
+    const uint32_t imm9 = insn.getOperand(0).getImm();
+    uint64_t result;
+
+    // This instruction operates implicitly on stack pointer, so read <sp> register.
+    uint64_t src_opd_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_sp_mips, 0, &success);
+    if (!success)
+        return false;
+
+    result = src_opd_val + imm9;
+
+    Context context;
+    RegisterInfo reg_info_sp;
+    if (GetRegisterInfo (eRegisterKindDWARF, dwarf_sp_mips, reg_info_sp))
+        context.SetRegisterPlusOffset (reg_info_sp, imm9);
+
+    // We are adjusting the stack.
+    context.type = eContextAdjustStackPointer;
+
+    WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_sp_mips, result);
+    return true;
+}
+
+bool
+EmulateInstructionMIPS::Emulate_ADDIUS5 (llvm::MCInst& insn)
+{
+    bool success = false;
+    uint32_t base;
+    const uint32_t imm4 = insn.getOperand(2).getImm();
+    uint64_t result;
+
+    // The source and destination register is same for this instruction.
+    base = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
+
+    // We are looking for stack adjustment only
+    if (base == dwarf_sp_mips)
+    {
+        // Read stack pointer register
+        uint64_t src_opd_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + base, 0, &success);
         if (!success)
             return false;
 
-        /* destination address */
-        address = address + imm;
+        result = src_opd_val + imm4;
 
         Context context;
+        RegisterInfo reg_info_sp;
+        if (GetRegisterInfo (eRegisterKindDWARF, dwarf_sp_mips, reg_info_sp))
+            context.SetRegisterPlusOffset (reg_info_sp, imm4);
+
+        // We are adjusting the stack.
+        context.type = eContextAdjustStackPointer;
+
+        WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_sp_mips, result);
+    }
+
+    return true;
+}
+
+bool
+EmulateInstructionMIPS::Emulate_SWSP (llvm::MCInst& insn)
+{
+    bool success = false;
+    uint32_t imm5 = insn.getOperand(2).getImm();
+    uint32_t src, base;
+    Context bad_vaddr_context;
+    uint32_t address;
+
+    src = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
+    base = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
+
+    RegisterInfo reg_info_base;
+
+    if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + base, reg_info_base))
+        return false;
+
+    // read base register
+    address = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + base, 0, &success);
+    if (!success)
+        return false;
+
+    // destination address
+    address = address + imm5;
+
+    // We use bad_vaddr_context to store base address which is used by H/W watchpoint
+    // Set the bad_vaddr register with base address used in the instruction
+    bad_vaddr_context.type = eContextInvalid;
+    WriteRegisterUnsigned (bad_vaddr_context, eRegisterKindDWARF, dwarf_bad_mips, address);
+
+    // We look for sp based non-volatile register stores.
+    if (base == dwarf_sp_mips && nonvolatile_reg_p (src))
+    {
+        RegisterInfo reg_info_src;
+        Context context;
         RegisterValue data_src;
         context.type = eContextPushRegisterOnStack;
         context.SetRegisterToRegisterPlusOffset (reg_info_src, reg_info_base, 0);
@@ -709,24 +1166,118 @@ EmulateInstructionMIPS::Emulate_SW (llvm::MCInst& insn)
     return false;
 }
 
+/* Emulate SWM16,SWM32 and SWP instruction.
+
+   SWM16 always has stack pointer as a base register (but it is still available in MCInst as an operand).
+   SWM32 and SWP can have base register other than stack pointer.
+*/
 bool
-EmulateInstructionMIPS::Emulate_LW (llvm::MCInst& insn)
+EmulateInstructionMIPS::Emulate_SWM16_32 (llvm::MCInst& insn)
 {
+    bool success = false;
     uint32_t src, base;
+    uint32_t num_operands = insn.getNumOperands();  // No of operands vary based on no of regs to store.
 
-    src = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
-    base = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
+    // Base register is second last operand of the instruction.
+    base = m_reg_info->getEncodingValue (insn.getOperand(num_operands-2).getReg());
+
+    // We are looking for sp based stores so if base is not a stack pointer then don't proceed.
+    if (base != dwarf_sp_mips)
+        return false;
+
+    // offset is always the last operand.
+    uint32_t offset = insn.getOperand(num_operands-1).getImm(); 
+
+    RegisterInfo reg_info_base;
+    RegisterInfo reg_info_src;
+    
+    if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + base, reg_info_base))
+        return false;
+
+    // read SP
+    uint32_t base_address = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + base, 0, &success);
+    if (!success)
+        return false;
+
+    // Resulting base addrss
+    base_address = base_address + offset;
+
+    // Total no of registers to be stored are num_operands-2.
+    for (uint32_t i = 0; i < num_operands - 2; i++)
+    {
+        // Get the register number to be stored.
+        src = m_reg_info->getEncodingValue (insn.getOperand(i).getReg());
+
+        /* 
+            Record only non-volatile stores.
+            This check is required for SWP instruction because source operand could be any register.
+            SWM16 and SWM32 instruction always has saved registers as source operands.
+        */
+        if (!nonvolatile_reg_p (src))
+            return false;
+
+        if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + src, reg_info_src))
+            return false;
+
+        Context context;
+        RegisterValue data_src;
+        context.type = eContextPushRegisterOnStack;
+        context.SetRegisterToRegisterPlusOffset (reg_info_src, reg_info_base, 0);
+
+        uint8_t buffer [RegisterValue::kMaxRegisterByteSize];
+        Error error;
+
+        if (!ReadRegister (&reg_info_base, data_src))
+            return false;
+
+        if (data_src.GetAsMemoryData (&reg_info_src, buffer, reg_info_src.byte_size, eByteOrderLittle, error) == 0)
+            return false;
+
+        if (!WriteMemory (context, base_address, buffer, reg_info_src.byte_size))
+            return false;
+
+        // Stack address for next register
+        base_address = base_address + reg_info_src.byte_size;
+    }
+    return true;
+}
+
+bool
+EmulateInstructionMIPS::Emulate_LWSP (llvm::MCInst& insn)
+{
+    bool success = false;
+    uint32_t src = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
+    uint32_t base = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
+    uint32_t imm5 = insn.getOperand(2).getImm();
+    Context bad_vaddr_context;
+
+    RegisterInfo reg_info_base;
+    if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + base, reg_info_base))
+        return false;
 
-    if (base == gcc_dwarf_sp_mips && nonvolatile_reg_p (src))
+    // read base register
+    uint32_t base_address = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + base, 0, &success);
+    if (!success)
+        return false;
+
+    base_address = base_address + imm5;
+
+    // We use bad_vaddr_context to store base address which is used by H/W watchpoint
+    // Set the bad_vaddr register with base address used in the instruction
+    bad_vaddr_context.type = eContextInvalid;
+    WriteRegisterUnsigned (bad_vaddr_context, eRegisterKindDWARF, dwarf_bad_mips, base_address);
+
+    if (base == dwarf_sp_mips && nonvolatile_reg_p (src))
     {
         RegisterValue data_src;
         RegisterInfo reg_info_src;
 
-        if (!GetRegisterInfo (eRegisterKindDWARF, gcc_dwarf_zero_mips + src, reg_info_src))
+        if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + src, reg_info_src))
             return false;
 
         Context context;
-        context.type = eContextRegisterLoad;
+        context.type = eContextPopRegisterOffStack;
+        context.SetAddress (base_address);
 
         if (!WriteRegister (context, &reg_info_src, data_src))
             return false;
@@ -737,6 +1288,105 @@ EmulateInstructionMIPS::Emulate_LW (llvm::MCInst& insn)
     return false;
 }
 
+/* Emulate LWM16, LWM32 and LWP instructions.
+
+   LWM16 always has stack pointer as a base register (but it is still available in MCInst as an operand).
+   LWM32 and LWP can have base register other than stack pointer.
+*/
+bool
+EmulateInstructionMIPS::Emulate_LWM16_32 (llvm::MCInst& insn)
+{
+    bool success = false;
+    uint32_t dst, base;
+    uint32_t num_operands = insn.getNumOperands();  // No of operands vary based on no of regs to store.
+    uint32_t imm = insn.getOperand(num_operands-1).getImm();    // imm is the last operand in the instruction.
+    
+    // Base register is second last operand of the instruction.
+    base = m_reg_info->getEncodingValue (insn.getOperand(num_operands-2).getReg());
+
+    // We are looking for sp based loads so if base is not a stack pointer then don't proceed.
+    if (base != dwarf_sp_mips)
+        return false;
+
+    uint32_t base_address = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + base, 0, &success);
+    if (!success)
+        return false;
+
+    base_address = base_address + imm;
+
+    RegisterValue data_dst;
+    RegisterInfo reg_info_dst;
+
+    // Total no of registers to be re-stored are num_operands-2.
+    for (uint32_t i = 0; i < num_operands - 2; i++)
+    {
+        // Get the register number to be re-stored.
+        dst = m_reg_info->getEncodingValue (insn.getOperand(i).getReg());
+
+        /*
+            Record only non-volatile loads.
+            This check is required for LWP instruction because destination operand could be any register.
+            LWM16 and LWM32 instruction always has saved registers as destination operands.
+        */
+        if (!nonvolatile_reg_p (dst))
+            return false;
+        
+        if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + dst, reg_info_dst))
+            return false;
+
+        Context context;
+        context.type = eContextPopRegisterOffStack;
+        context.SetAddress (base_address + (i*4));
+
+        if (!WriteRegister (context, &reg_info_dst, data_dst))
+            return false;
+    }
+
+    return true;
+}
+
+bool
+EmulateInstructionMIPS::Emulate_JRADDIUSP (llvm::MCInst& insn)
+{
+    bool success = false;
+    int32_t imm5 = insn.getOperand(0).getImm();
+
+    /* JRADDIUSP immediate
+    *       PC <- RA
+    *       SP <- SP + zero_extend(Immediate << 2)
+    */
+    
+    // This instruction operates implicitly on stack pointer, so read <sp> register.
+    int32_t src_opd_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_sp_mips, 0, &success);
+    if (!success)
+        return false;
+
+    int32_t ra_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_ra_mips, 0, &success);
+    if (!success)
+        return false;
+    
+    int32_t result = src_opd_val + imm5;
+
+    Context context;
+
+    // Update the PC
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, ra_val))
+        return false;
+    
+    RegisterInfo reg_info_sp;
+    if (GetRegisterInfo (eRegisterKindDWARF, dwarf_sp_mips, reg_info_sp))
+        context.SetRegisterPlusOffset (reg_info_sp, imm5);
+
+    // We are adjusting stack
+    context.type = eContextAdjustStackPointer;
+
+    // update SP
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_sp_mips, result))
+        return false;
+
+    return true;
+}
+
 bool
 EmulateInstructionMIPS::Emulate_BEQ (llvm::MCInst& insn)
 {
@@ -754,15 +1404,15 @@ EmulateInstructionMIPS::Emulate_BEQ (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, 0, &success);
+    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rt, 0, &success);
     if (!success)
         return false;
 
@@ -774,13 +1424,270 @@ EmulateInstructionMIPS::Emulate_BEQ (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
 }
 
 bool
+EmulateInstructionMIPS::Emulate_B16_MM (llvm::MCInst& insn)
+{
+    bool success = false;
+    int32_t offset, pc, target;
+    uint32_t current_inst_size = m_insn_info->get(insn.getOpcode()).getSize();
+
+    offset = insn.getOperand(0).getImm();
+
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
+    if (!success)
+        return false;
+
+    // unconditional branch
+    target = pc + offset;
+
+    Context context;
+    context.type = eContextRelativeBranchImmediate;
+    context.SetImmediate (current_inst_size + offset);
+
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
+        return false;
+
+    return true;
+}
+
+/*
+   BEQZC, BNEZC are 32 bit compact instructions without a delay slot.
+   BEQZ16, BNEZ16 are 16 bit instructions with delay slot.
+   BGEZALS, BLTZALS are 16 bit instructions with short (2-byte) delay slot.
+*/
+bool
+EmulateInstructionMIPS::Emulate_Branch_MM (llvm::MCInst& insn)
+{
+    bool success = false;
+    int32_t target = 0;
+    uint32_t current_inst_size = m_insn_info->get(insn.getOpcode()).getSize();
+    const char *op_name = m_insn_info->getName (insn.getOpcode ());
+    bool update_ra = false;
+    uint32_t ra_offset = 0;
+
+    /*
+     * BEQZ16 rs, offset
+     *      condition <- (GPR[rs] = 0)
+     *      if condition then
+     *          PC = PC + sign_ext (offset || 0)
+     *
+     * BNEZ16 rs, offset
+     *      condition <- (GPR[rs] != 0)
+     *      if condition then
+     *          PC = PC + sign_ext (offset || 0)
+     *
+     * BEQZC rs, offset     (compact instruction: No delay slot)
+     *      condition <- (GPR[rs] == 0)
+     *      if condition then
+     *         PC = PC + 4 + sign_ext (offset || 0)
+    */
+
+    uint32_t rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
+    int32_t offset = insn.getOperand(1).getImm();
+
+    int32_t pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
+    if (!success)
+        return false;
+
+    int32_t rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
+    if (!success)
+        return false;
+
+    if (!strcasecmp (op_name, "BEQZ16_MM"))
+    {
+        if (rs_val == 0)
+            target = pc + offset;
+        else
+            target = pc + current_inst_size + m_next_inst_size; // Skip delay slot instruction.
+    }
+    else if (!strcasecmp (op_name, "BNEZ16_MM"))
+    {
+        if (rs_val != 0)
+            target = pc + offset;
+        else
+            target = pc + current_inst_size + m_next_inst_size; // Skip delay slot instruction.
+    }
+    else if (!strcasecmp (op_name, "BEQZC_MM"))
+    {
+        if (rs_val == 0)
+            target = pc + 4 + offset;
+        else
+            target = pc + 4;         // 32 bit instruction and does not have delay slot instruction.
+    }
+    else if (!strcasecmp (op_name, "BNEZC_MM"))
+    {
+        if (rs_val != 0)
+            target = pc + 4 + offset;
+        else
+            target = pc + 4;         // 32 bit instruction and does not have delay slot instruction.
+    }
+    else if (!strcasecmp (op_name, "BGEZALS_MM"))
+    {
+        if (rs_val >= 0)
+            target = pc + offset;
+        else
+            target = pc + 6;        // 32 bit instruction with short (2-byte) delay slot
+        
+        update_ra = true;
+        ra_offset = 6;
+    }
+    else if (!strcasecmp (op_name, "BLTZALS_MM"))
+    {
+        if (rs_val >= 0)
+            target = pc + offset;
+        else
+            target = pc + 6;        // 32 bit instruction with short (2-byte) delay slot
+        
+        update_ra = true;
+        ra_offset = 6;
+    }
+
+    Context context;
+    context.type = eContextRelativeBranchImmediate;
+    context.SetImmediate (current_inst_size + offset);
+
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
+        return false;
+
+    if (update_ra)
+    {
+        if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + ra_offset))
+            return false;
+    }
+    return true;
+}
+
+/* Emulate micromips jump instructions.
+   JALR16,JALRS16
+*/
+bool
+EmulateInstructionMIPS::Emulate_JALRx16_MM (llvm::MCInst& insn)
+{
+    bool success = false;
+    uint32_t ra_offset = 0;
+    const char *op_name = m_insn_info->getName (insn.getOpcode ());
+
+    uint32_t rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
+
+    uint32_t pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
+    if (!success)
+        return false;
+
+    uint32_t rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
+    if (!success)
+        return false;
+
+    if (!strcasecmp (op_name, "JALR16_MM"))
+        ra_offset = 6;      // 2-byte instruction with 4-byte delay slot.
+    else if (!strcasecmp (op_name, "JALRS16_MM"))
+        ra_offset = 4;      // 2-byte instruction with 2-byte delay slot.
+
+    Context context;
+
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, rs_val))
+        return false;
+
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + ra_offset))
+        return false;
+
+    return true;
+}
+
+/* Emulate JALS and JALX instructions.
+    JALS 32 bit instruction with short (2-byte) delay slot.
+    JALX 32 bit instruction with 4-byte delay slot.
+*/
+bool
+EmulateInstructionMIPS::Emulate_JALx (llvm::MCInst& insn)
+{
+    bool success = false;
+    uint32_t offset=0, target=0, pc=0, ra_offset=0;
+    const char *op_name = m_insn_info->getName (insn.getOpcode ());
+    
+    /* 
+     * JALS target
+     *      RA = PC + 6
+     *      offset = sign_ext (offset << 1)
+     *      PC = PC[31-27] | offset
+     * JALX target
+     *      RA = PC + 8
+     *      offset = sign_ext (offset << 2)
+     *      PC = PC[31-28] | offset
+    */
+    offset = insn.getOperand(0).getImm();
+
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
+    if (!success)
+        return false;
+
+    // These are PC-region branches and not PC-relative.
+    if (!strcasecmp (op_name, "JALS_MM"))
+    {
+        // target address is in the “current� 128 MB-aligned region
+        target = (pc & 0xF8000000UL) | offset;
+        ra_offset = 6;
+    }
+    else if (!strcasecmp (op_name, "JALX_MM"))
+    {
+        // target address is in the “current� 256 MB-aligned region
+        target = (pc & 0xF0000000UL) | offset;
+        ra_offset = 8;
+    }
+
+    Context context;
+
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
+        return false;
+
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + ra_offset))
+        return false;
+
+    return true;
+}
+
+bool
+EmulateInstructionMIPS::Emulate_JALRS (llvm::MCInst& insn)
+{
+    bool success = false;
+    uint32_t rs=0, rt=0;
+    int32_t pc=0, rs_val=0;
+    
+    /*
+        JALRS rt, rs
+            GPR[rt] <- PC + 6
+            PC <- GPR[rs]
+    */
+
+    rt = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
+    rs = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
+
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
+    if (!success)
+        return false;
+
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
+    if (!success)
+        return false;
+    
+    Context context;
+
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, rs_val))
+        return false;
+
+    // This is 4-byte instruction with 2-byte delay slot.
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_zero_mips + rt, pc + 6))
+        return false;
+    
+    return true;
+}
+
+bool
 EmulateInstructionMIPS::Emulate_BNE (llvm::MCInst& insn)
 {
     bool success = false;
@@ -797,15 +1704,15 @@ EmulateInstructionMIPS::Emulate_BNE (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, 0, &success);
+    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rt, 0, &success);
     if (!success)
         return false;
 
@@ -817,7 +1724,7 @@ EmulateInstructionMIPS::Emulate_BNE (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -840,15 +1747,15 @@ EmulateInstructionMIPS::Emulate_BEQL (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, 0, &success);
+    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rt, 0, &success);
     if (!success)
         return false;
 
@@ -860,7 +1767,7 @@ EmulateInstructionMIPS::Emulate_BEQL (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -883,15 +1790,15 @@ EmulateInstructionMIPS::Emulate_BNEL (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, 0, &success);
+    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rt, 0, &success);
     if (!success)
         return false;
 
@@ -903,7 +1810,7 @@ EmulateInstructionMIPS::Emulate_BNEL (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -926,11 +1833,11 @@ EmulateInstructionMIPS::Emulate_BGEZL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -942,7 +1849,7 @@ EmulateInstructionMIPS::Emulate_BGEZL (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -965,11 +1872,11 @@ EmulateInstructionMIPS::Emulate_BLTZL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -981,7 +1888,7 @@ EmulateInstructionMIPS::Emulate_BLTZL (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -1004,11 +1911,11 @@ EmulateInstructionMIPS::Emulate_BGTZL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1020,7 +1927,7 @@ EmulateInstructionMIPS::Emulate_BGTZL (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -1043,11 +1950,11 @@ EmulateInstructionMIPS::Emulate_BLEZL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1059,7 +1966,7 @@ EmulateInstructionMIPS::Emulate_BLEZL (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -1082,11 +1989,11 @@ EmulateInstructionMIPS::Emulate_BGTZ (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1098,7 +2005,7 @@ EmulateInstructionMIPS::Emulate_BGTZ (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -1121,11 +2028,11 @@ EmulateInstructionMIPS::Emulate_BLEZ (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1137,7 +2044,7 @@ EmulateInstructionMIPS::Emulate_BLEZ (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -1160,11 +2067,11 @@ EmulateInstructionMIPS::Emulate_BLTZ (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1176,7 +2083,7 @@ EmulateInstructionMIPS::Emulate_BLTZ (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -1199,11 +2106,11 @@ EmulateInstructionMIPS::Emulate_BGEZALL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1215,10 +2122,10 @@ EmulateInstructionMIPS::Emulate_BGEZALL (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips, pc + 8))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + 8))
         return false;
 
     return true;
@@ -1238,7 +2145,7 @@ EmulateInstructionMIPS::Emulate_BAL (llvm::MCInst& insn)
     */
     offset = insn.getOperand(0).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
@@ -1246,10 +2153,10 @@ EmulateInstructionMIPS::Emulate_BAL (llvm::MCInst& insn)
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips, pc + 8))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + 8))
         return false;
 
     return true;
@@ -1269,7 +2176,7 @@ EmulateInstructionMIPS::Emulate_BALC (llvm::MCInst& insn)
     */
     offset = insn.getOperand(0).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
@@ -1277,10 +2184,10 @@ EmulateInstructionMIPS::Emulate_BALC (llvm::MCInst& insn)
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + 4))
         return false;
 
     return true;
@@ -1305,11 +2212,11 @@ EmulateInstructionMIPS::Emulate_BGEZAL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1320,10 +2227,10 @@ EmulateInstructionMIPS::Emulate_BGEZAL (llvm::MCInst& insn)
     else
         target = pc + 8;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips, pc + 8))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + 8))
         return false;
 
     return true;
@@ -1348,11 +2255,11 @@ EmulateInstructionMIPS::Emulate_BLTZAL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1363,10 +2270,10 @@ EmulateInstructionMIPS::Emulate_BLTZAL (llvm::MCInst& insn)
     else
         target = pc + 8;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips, pc + 8))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + 8))
         return false;
 
     return true;
@@ -1391,11 +2298,11 @@ EmulateInstructionMIPS::Emulate_BLTZALL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1406,10 +2313,10 @@ EmulateInstructionMIPS::Emulate_BLTZALL (llvm::MCInst& insn)
     else
         target = pc + 8;    /* skip delay slot */
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips, pc + 8))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + 8))
         return false;
 
     return true;
@@ -1435,11 +2342,11 @@ EmulateInstructionMIPS::Emulate_BLEZALC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1450,10 +2357,10 @@ EmulateInstructionMIPS::Emulate_BLEZALC (llvm::MCInst& insn)
     else
         target = pc + 4;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + 4))
         return false;
 
     return true;
@@ -1478,11 +2385,11 @@ EmulateInstructionMIPS::Emulate_BGEZALC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1493,10 +2400,10 @@ EmulateInstructionMIPS::Emulate_BGEZALC (llvm::MCInst& insn)
     else
         target = pc + 4;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + 4))
         return false;
 
     return true;
@@ -1521,11 +2428,11 @@ EmulateInstructionMIPS::Emulate_BLTZALC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1536,10 +2443,10 @@ EmulateInstructionMIPS::Emulate_BLTZALC (llvm::MCInst& insn)
     else
         target = pc + 4;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + 4))
         return false;
 
     return true;
@@ -1564,11 +2471,11 @@ EmulateInstructionMIPS::Emulate_BGTZALC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1579,10 +2486,10 @@ EmulateInstructionMIPS::Emulate_BGTZALC (llvm::MCInst& insn)
     else
         target = pc + 4;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + 4))
         return false;
 
     return true;
@@ -1606,11 +2513,11 @@ EmulateInstructionMIPS::Emulate_BEQZALC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1621,10 +2528,10 @@ EmulateInstructionMIPS::Emulate_BEQZALC (llvm::MCInst& insn)
     else
         target = pc + 4;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + 4))
         return false;
 
     return true;
@@ -1648,11 +2555,11 @@ EmulateInstructionMIPS::Emulate_BNEZALC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1663,10 +2570,10 @@ EmulateInstructionMIPS::Emulate_BNEZALC (llvm::MCInst& insn)
     else
         target = pc + 4;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + 4))
         return false;
 
     return true;
@@ -1689,11 +2596,11 @@ EmulateInstructionMIPS::Emulate_BGEZ (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1704,7 +2611,7 @@ EmulateInstructionMIPS::Emulate_BGEZ (llvm::MCInst& insn)
     else
         target = pc + 8;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -1723,7 +2630,7 @@ EmulateInstructionMIPS::Emulate_BC (llvm::MCInst& insn)
     */
     offset = insn.getOperand(0).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
@@ -1731,7 +2638,7 @@ EmulateInstructionMIPS::Emulate_BC (llvm::MCInst& insn)
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -1754,15 +2661,15 @@ EmulateInstructionMIPS::Emulate_BEQC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, 0, &success);
+    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rt, 0, &success);
     if (!success)
         return false;
 
@@ -1774,7 +2681,7 @@ EmulateInstructionMIPS::Emulate_BEQC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -1797,15 +2704,15 @@ EmulateInstructionMIPS::Emulate_BNEC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, 0, &success);
+    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rt, 0, &success);
     if (!success)
         return false;
 
@@ -1817,7 +2724,7 @@ EmulateInstructionMIPS::Emulate_BNEC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -1841,15 +2748,15 @@ EmulateInstructionMIPS::Emulate_BLTC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, 0, &success);
+    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rt, 0, &success);
     if (!success)
         return false;
 
@@ -1861,7 +2768,7 @@ EmulateInstructionMIPS::Emulate_BLTC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -1885,15 +2792,15 @@ EmulateInstructionMIPS::Emulate_BGEC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, 0, &success);
+    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rt, 0, &success);
     if (!success)
         return false;
 
@@ -1905,7 +2812,7 @@ EmulateInstructionMIPS::Emulate_BGEC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -1929,15 +2836,15 @@ EmulateInstructionMIPS::Emulate_BLTUC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, 0, &success);
+    rt_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rt, 0, &success);
     if (!success)
         return false;
 
@@ -1949,7 +2856,7 @@ EmulateInstructionMIPS::Emulate_BLTUC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -1973,15 +2880,15 @@ EmulateInstructionMIPS::Emulate_BGEUC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, 0, &success);
+    rt_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rt, 0, &success);
     if (!success)
         return false;
 
@@ -1993,7 +2900,7 @@ EmulateInstructionMIPS::Emulate_BGEUC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2016,11 +2923,11 @@ EmulateInstructionMIPS::Emulate_BLTZC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -2032,7 +2939,7 @@ EmulateInstructionMIPS::Emulate_BLTZC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2055,11 +2962,11 @@ EmulateInstructionMIPS::Emulate_BLEZC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -2071,7 +2978,7 @@ EmulateInstructionMIPS::Emulate_BLEZC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2094,11 +3001,11 @@ EmulateInstructionMIPS::Emulate_BGEZC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -2110,7 +3017,7 @@ EmulateInstructionMIPS::Emulate_BGEZC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2133,11 +3040,11 @@ EmulateInstructionMIPS::Emulate_BGTZC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -2149,7 +3056,7 @@ EmulateInstructionMIPS::Emulate_BGTZC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2172,11 +3079,11 @@ EmulateInstructionMIPS::Emulate_BEQZC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -2188,7 +3095,7 @@ EmulateInstructionMIPS::Emulate_BEQZC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2211,11 +3118,11 @@ EmulateInstructionMIPS::Emulate_BNEZC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
@@ -2227,7 +3134,7 @@ EmulateInstructionMIPS::Emulate_BNEZC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2258,15 +3165,15 @@ EmulateInstructionMIPS::Emulate_BOVC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, 0, &success);
+    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rt, 0, &success);
     if (!success)
         return false;
 
@@ -2278,7 +3185,7 @@ EmulateInstructionMIPS::Emulate_BOVC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2302,15 +3209,15 @@ EmulateInstructionMIPS::Emulate_BNVC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, 0, &success);
+    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rt, 0, &success);
     if (!success)
         return false;
 
@@ -2322,7 +3229,7 @@ EmulateInstructionMIPS::Emulate_BNVC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2341,7 +3248,7 @@ EmulateInstructionMIPS::Emulate_J (llvm::MCInst& insn)
     */
     offset = insn.getOperand(0).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
@@ -2350,7 +3257,7 @@ EmulateInstructionMIPS::Emulate_J (llvm::MCInst& insn)
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, pc))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, pc))
         return false;
 
     return true;
@@ -2369,7 +3276,7 @@ EmulateInstructionMIPS::Emulate_JAL (llvm::MCInst& insn)
     */
     offset = insn.getOperand(0).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
@@ -2378,10 +3285,10 @@ EmulateInstructionMIPS::Emulate_JAL (llvm::MCInst& insn)
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips, pc + 8))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + 8))
         return false;
 
     return true;
@@ -2402,20 +3309,20 @@ EmulateInstructionMIPS::Emulate_JALR (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     rs = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, rs_val))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, rs_val))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, pc + 8))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_zero_mips + rt, pc + 8))
         return false;
 
     return true;
@@ -2437,11 +3344,11 @@ EmulateInstructionMIPS::Emulate_JIALC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, 0, &success);
+    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rt, 0, &success);
     if (!success)
         return false;
 
@@ -2449,10 +3356,10 @@ EmulateInstructionMIPS::Emulate_JIALC (llvm::MCInst& insn)
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips, pc + 4))
         return false;
 
     return true;
@@ -2473,7 +3380,7 @@ EmulateInstructionMIPS::Emulate_JIC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rt, 0, &success);
+    rt_val = (int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rt, 0, &success);
     if (!success)
         return false;
 
@@ -2481,7 +3388,7 @@ EmulateInstructionMIPS::Emulate_JIC (llvm::MCInst& insn)
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2500,13 +3407,13 @@ EmulateInstructionMIPS::Emulate_JR (llvm::MCInst& insn)
     */
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
 
-    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + rs, 0, &success);
+    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + rs, 0, &success);
     if (!success)
         return false;
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, rs_val))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, rs_val))
         return false;
 
     return true;
@@ -2529,11 +3436,11 @@ EmulateInstructionMIPS::Emulate_BC1F (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips, 0, &success);
+    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips, 0, &success);
     if (!success)
         return false;
 
@@ -2547,7 +3454,7 @@ EmulateInstructionMIPS::Emulate_BC1F (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2570,11 +3477,11 @@ EmulateInstructionMIPS::Emulate_BC1T (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips, 0, &success);
+    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips, 0, &success);
     if (!success)
         return false;
 
@@ -2588,7 +3495,7 @@ EmulateInstructionMIPS::Emulate_BC1T (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2611,11 +3518,11 @@ EmulateInstructionMIPS::Emulate_BC1FL (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips, 0, &success);
+    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips, 0, &success);
     if (!success)
         return false;
 
@@ -2629,7 +3536,7 @@ EmulateInstructionMIPS::Emulate_BC1FL (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2652,11 +3559,11 @@ EmulateInstructionMIPS::Emulate_BC1TL (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips, 0, &success);
+    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips, 0, &success);
     if (!success)
         return false;
 
@@ -2670,7 +3577,7 @@ EmulateInstructionMIPS::Emulate_BC1TL (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2694,11 +3601,11 @@ EmulateInstructionMIPS::Emulate_BC1EQZ (llvm::MCInst& insn)
     ft = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    ft_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + ft, 0, &success);
+    ft_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + ft, 0, &success);
     if (!success)
         return false;
 
@@ -2709,7 +3616,7 @@ EmulateInstructionMIPS::Emulate_BC1EQZ (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2733,11 +3640,11 @@ EmulateInstructionMIPS::Emulate_BC1NEZ (llvm::MCInst& insn)
     ft = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    ft_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips + ft, 0, &success);
+    ft_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + ft, 0, &success);
     if (!success)
         return false;
 
@@ -2748,7 +3655,7 @@ EmulateInstructionMIPS::Emulate_BC1NEZ (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2772,11 +3679,11 @@ EmulateInstructionMIPS::Emulate_BC1ANY2F (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips, 0, &success);
+    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips, 0, &success);
     if (!success)
         return false;
 
@@ -2791,7 +3698,7 @@ EmulateInstructionMIPS::Emulate_BC1ANY2F (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2815,11 +3722,11 @@ EmulateInstructionMIPS::Emulate_BC1ANY2T (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips, 0, &success);
+    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips, 0, &success);
     if (!success)
         return false;
 
@@ -2834,7 +3741,7 @@ EmulateInstructionMIPS::Emulate_BC1ANY2T (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2860,11 +3767,11 @@ EmulateInstructionMIPS::Emulate_BC1ANY4F (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips, 0, &success);
+    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips, 0, &success);
     if (!success)
         return false;
 
@@ -2879,7 +3786,7 @@ EmulateInstructionMIPS::Emulate_BC1ANY4F (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
@@ -2905,11 +3812,11 @@ EmulateInstructionMIPS::Emulate_BC1ANY4T (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
     if (!success)
         return false;
 
-    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips, 0, &success);
+    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips, 0, &success);
     if (!success)
         return false;
 
@@ -2924,8 +3831,234 @@ EmulateInstructionMIPS::Emulate_BC1ANY4T (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
+        return false;
+
+    return true;
+}
+
+bool
+EmulateInstructionMIPS::Emulate_BNZB (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 1, true);
+}
+
+bool
+EmulateInstructionMIPS::Emulate_BNZH (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 2, true);
+}
+
+bool
+EmulateInstructionMIPS::Emulate_BNZW (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 4, true);
+}
+
+bool
+EmulateInstructionMIPS::Emulate_BNZD (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 8, true);
+}
+
+bool
+EmulateInstructionMIPS::Emulate_BZB (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 1, false);
+}
+
+bool
+EmulateInstructionMIPS::Emulate_BZH (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 2, false);
+}
+
+bool
+EmulateInstructionMIPS::Emulate_BZW (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 4, false);
+}
+
+bool
+EmulateInstructionMIPS::Emulate_BZD (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 8, false);
+}
+
+bool
+EmulateInstructionMIPS::Emulate_MSA_Branch_DF (llvm::MCInst& insn, int element_byte_size, bool bnz)
+{
+    bool success = false, branch_hit = true;
+    int32_t target = 0;
+    RegisterValue reg_value;
+    uint8_t * ptr = NULL;
+
+    uint32_t wt = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
+    int32_t offset = insn.getOperand(1).getImm();
+
+    int32_t pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
+    if (!success)
+        return false;
+
+    if (ReadRegister (eRegisterKindDWARF, dwarf_w0_mips + wt, reg_value))
+        ptr = (uint8_t *)reg_value.GetBytes();
+    else
+        return false;
+
+    for(int i = 0; i < 16 / element_byte_size; i++)
+    {
+        switch(element_byte_size)
+        {
+            case 1:
+                if((*ptr == 0 && bnz) || (*ptr != 0 && !bnz) )
+                    branch_hit = false;
+                break;
+            case 2:
+                if((*(uint16_t *)ptr == 0 && bnz) || (*(uint16_t *)ptr != 0 && !bnz))
+                    branch_hit = false;
+                break;
+            case 4:
+                if((*(uint32_t *)ptr == 0 && bnz) || (*(uint32_t *)ptr != 0 && !bnz))
+                    branch_hit = false;
+                break;
+            case 8:
+                if((*(uint64_t *)ptr == 0 && bnz) || (*(uint64_t *)ptr != 0 && !bnz))
+                    branch_hit = false;
+                break;
+        }
+        if(!branch_hit)
+           break;
+        ptr = ptr + element_byte_size;
+    }
+
+    if(branch_hit)
+        target = pc + offset;
+    else
+        target = pc + 8;
+
+    Context context;
+    context.type = eContextRelativeBranchImmediate;
+
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
         return false;
 
     return true;
 }
+
+bool
+EmulateInstructionMIPS::Emulate_BNZV (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_V (insn, true);
+}
+
+bool
+EmulateInstructionMIPS::Emulate_BZV (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_V (insn, false);
+}
+
+bool
+EmulateInstructionMIPS::Emulate_MSA_Branch_V (llvm::MCInst& insn, bool bnz)
+{
+    bool success = false;
+    int32_t target = 0;
+    llvm::APInt wr_val = llvm::APInt::getNullValue(128);
+    llvm::APInt fail_value = llvm::APInt::getMaxValue(128);
+    llvm::APInt zero_value = llvm::APInt::getNullValue(128);
+    RegisterValue reg_value;
+
+    uint32_t wt = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
+    int32_t offset = insn.getOperand(1).getImm();
+
+    int32_t pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips, 0, &success);
+    if (!success)
+        return false;
+
+    if (ReadRegister (eRegisterKindDWARF, dwarf_w0_mips + wt, reg_value))
+        wr_val = reg_value.GetAsUInt128(fail_value);
+    else
+        return false;
+
+    if((llvm::APInt::isSameValue(zero_value, wr_val) && !bnz) || (!llvm::APInt::isSameValue(zero_value, wr_val) && bnz))
+        target = pc + offset;
+    else
+        target = pc + 8;
+
+    Context context;
+    context.type = eContextRelativeBranchImmediate;
+
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips, target))
+        return false;
+
+    return true;
+}
+
+bool
+EmulateInstructionMIPS::Emulate_LDST_Imm (llvm::MCInst& insn)
+{
+    bool success = false;
+    uint32_t base;
+    int32_t imm, address;
+    Context bad_vaddr_context;
+
+    uint32_t num_operands = insn.getNumOperands();
+    base = m_reg_info->getEncodingValue (insn.getOperand(num_operands-2).getReg());
+    imm = insn.getOperand(num_operands-1).getImm();
+
+    RegisterInfo reg_info_base;
+    if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + base, reg_info_base))
+        return false;
+
+    /* read base register */
+    address =(int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + base, 0, &success);
+    if (!success)
+        return false;
+
+    /* destination address */
+    address = address + imm;
+
+    /* Set the bad_vaddr register with base address used in the instruction */
+    bad_vaddr_context.type = eContextInvalid;
+    WriteRegisterUnsigned (bad_vaddr_context, eRegisterKindDWARF, dwarf_bad_mips, address);
+
+    return true;
+}
+
+bool
+EmulateInstructionMIPS::Emulate_LDST_Reg (llvm::MCInst& insn)
+{
+    bool success = false;
+    uint32_t base, index;
+    int32_t address, index_address;
+    Context bad_vaddr_context;
+
+    uint32_t num_operands = insn.getNumOperands();
+    base = m_reg_info->getEncodingValue (insn.getOperand(num_operands-2).getReg());
+    index = m_reg_info->getEncodingValue (insn.getOperand(num_operands-1).getReg());
+
+    RegisterInfo reg_info_base, reg_info_index;
+    if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + base, reg_info_base))
+        return false;
+
+    if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + index, reg_info_index))
+        return false;
+
+    /* read base register */
+    address =(int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + base, 0, &success);
+    if (!success)
+        return false;
+
+    /* read index register */
+    index_address =(int32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + index, 0, &success);
+    if (!success)
+        return false;
+
+    /* destination address */
+    address = address + index_address;
+
+    /* Set the bad_vaddr register with base address used in the instruction */
+    bad_vaddr_context.type = eContextInvalid;
+    WriteRegisterUnsigned (bad_vaddr_context, eRegisterKindDWARF, dwarf_bad_mips, address);
+
+    return true;
+}
diff --git a/source/Plugins/Instruction/MIPS/EmulateInstructionMIPS.h b/source/Plugins/Instruction/MIPS/EmulateInstructionMIPS.h
index 25d8fc8891d5b..e1340f9832785 100644
--- a/source/Plugins/Instruction/MIPS/EmulateInstructionMIPS.h
+++ b/source/Plugins/Instruction/MIPS/EmulateInstructionMIPS.h
@@ -60,53 +60,52 @@ public:
         return false;
     }
 
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
 
-    virtual lldb_private::ConstString
-    GetShortPluginName()
-    {
-        return GetPluginNameStatic();
-    }
-
-    virtual uint32_t
-    GetPluginVersion()
+    uint32_t
+    GetPluginVersion() override
     {
         return 1;
     }
 
     bool
-    SetTargetTriple (const lldb_private::ArchSpec &arch);
+    SetTargetTriple (const lldb_private::ArchSpec &arch) override;
     
     EmulateInstructionMIPS (const lldb_private::ArchSpec &arch);
 
-    virtual bool
-    SupportsEmulatingInstructionsOfType (lldb_private::InstructionType inst_type)
+    bool
+    SupportsEmulatingInstructionsOfType (lldb_private::InstructionType inst_type) override
     {
         return SupportsEmulatingInstructionsOfTypeStatic (inst_type);
     }
 
-    virtual bool 
-    ReadInstruction ();
-    
-    virtual bool
-    EvaluateInstruction (uint32_t evaluate_options);
+    bool
+    ReadInstruction () override;
     
-    virtual bool
+    bool
+    EvaluateInstruction (uint32_t evaluate_options) override;
+
+    bool
+    SetInstruction (const lldb_private::Opcode &insn_opcode, 
+                    const lldb_private::Address &inst_addr, 
+                    lldb_private::Target *target) override;
+
+    bool
     TestEmulation (lldb_private::Stream *out_stream, 
                    lldb_private::ArchSpec &arch, 
-                   lldb_private::OptionValueDictionary *test_data)
+                   lldb_private::OptionValueDictionary *test_data) override
     {
         return false;
     }
 
-    virtual bool
+    bool
     GetRegisterInfo (lldb::RegisterKind reg_kind,
                      uint32_t reg_num, 
-                     lldb_private::RegisterInfo &reg_info);
+                     lldb_private::RegisterInfo &reg_info) override;
 
-    virtual bool
-    CreateFunctionEntryUnwind (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateFunctionEntryUnwind (lldb_private::UnwindPlan &unwind_plan) override;
 
 
 protected:
@@ -121,6 +120,9 @@ protected:
     static MipsOpcode*
     GetOpcodeForInstruction (const char *op_name);
 
+    uint32_t
+    GetSizeOfInstruction (lldb_private::DataExtractor& data, uint64_t inst_addr);
+
     bool
     Emulate_ADDiu (llvm::MCInst& insn);
 
@@ -131,6 +133,33 @@ protected:
     Emulate_LW (llvm::MCInst& insn);
 
     bool
+    Emulate_ADDIUSP (llvm::MCInst& insn);
+
+    bool
+    Emulate_ADDIUS5 (llvm::MCInst& insn);
+
+    bool
+    Emulate_SWSP (llvm::MCInst& insn);
+
+    bool
+    Emulate_SWM16_32 (llvm::MCInst& insn);
+
+    bool
+    Emulate_LWSP (llvm::MCInst& insn);
+
+    bool
+    Emulate_LWM16_32 (llvm::MCInst& insn);
+
+    bool
+    Emulate_JRADDIUSP (llvm::MCInst& insn);
+
+    bool
+    Emulate_LDST_Imm (llvm::MCInst& insn);
+
+    bool
+    Emulate_LDST_Reg (llvm::MCInst& insn);
+
+    bool
     Emulate_BEQ (llvm::MCInst& insn);
 
     bool
@@ -296,6 +325,57 @@ protected:
     Emulate_BC1ANY4T  (llvm::MCInst& insn);
 
     bool
+    Emulate_BNZB  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BNZH  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BNZW  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BNZD  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BZB  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BZH  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BZW  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BZD  (llvm::MCInst& insn);
+
+    bool
+    Emulate_MSA_Branch_DF (llvm::MCInst& insn, int element_byte_size, bool bnz);
+
+    bool
+    Emulate_BNZV  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BZV  (llvm::MCInst& insn);
+
+    bool
+    Emulate_MSA_Branch_V (llvm::MCInst& insn, bool bnz);
+
+    bool
+    Emulate_B16_MM (llvm::MCInst& insn);
+
+    bool
+    Emulate_Branch_MM (llvm::MCInst& insn);
+
+    bool
+    Emulate_JALRx16_MM (llvm::MCInst& insn);
+
+    bool
+    Emulate_JALx (llvm::MCInst& insn);
+
+    bool
+    Emulate_JALRS (llvm::MCInst& insn);
+
+    bool
     nonvolatile_reg_p (uint32_t regnum);
 
     const char *
@@ -303,11 +383,15 @@ protected:
 
 private:
     std::unique_ptr<llvm::MCDisassembler>   m_disasm;
+    std::unique_ptr<llvm::MCDisassembler>   m_alt_disasm;
     std::unique_ptr<llvm::MCSubtargetInfo>  m_subtype_info;
+    std::unique_ptr<llvm::MCSubtargetInfo>  m_alt_subtype_info;
     std::unique_ptr<llvm::MCRegisterInfo>   m_reg_info;
     std::unique_ptr<llvm::MCAsmInfo>        m_asm_info;
     std::unique_ptr<llvm::MCContext>        m_context;
     std::unique_ptr<llvm::MCInstrInfo>      m_insn_info;
+    uint32_t                                m_next_inst_size;
+    bool                                    m_use_alt_disaasm;
 };
 
 #endif  // EmulateInstructionMIPS_h_
diff --git a/source/Plugins/Instruction/MIPS64/EmulateInstructionMIPS64.cpp b/source/Plugins/Instruction/MIPS64/EmulateInstructionMIPS64.cpp
index a574e7d348e15..28eba093f3179 100644
--- a/source/Plugins/Instruction/MIPS64/EmulateInstructionMIPS64.cpp
+++ b/source/Plugins/Instruction/MIPS64/EmulateInstructionMIPS64.cpp
@@ -221,41 +221,76 @@ EmulateInstructionMIPS64::GetRegisterName (unsigned reg_num, bool alternate_name
     {
         switch (reg_num)
         {
-            case gcc_dwarf_sp_mips64:  return "r29"; 
-            case gcc_dwarf_r30_mips64: return "r30"; 
-            case gcc_dwarf_ra_mips64:  return "r31";
-            case gcc_dwarf_f0_mips64:  return "f0";
-            case gcc_dwarf_f1_mips64:  return "f1";
-            case gcc_dwarf_f2_mips64:  return "f2";
-            case gcc_dwarf_f3_mips64:  return "f3";
-            case gcc_dwarf_f4_mips64:  return "f4";
-            case gcc_dwarf_f5_mips64:  return "f5";
-            case gcc_dwarf_f6_mips64:  return "f6";
-            case gcc_dwarf_f7_mips64:  return "f7";
-            case gcc_dwarf_f8_mips64:  return "f8";
-            case gcc_dwarf_f9_mips64:  return "f9";
-            case gcc_dwarf_f10_mips64: return "f10";
-            case gcc_dwarf_f11_mips64: return "f11";
-            case gcc_dwarf_f12_mips64: return "f12";
-            case gcc_dwarf_f13_mips64: return "f13";
-            case gcc_dwarf_f14_mips64: return "f14";
-            case gcc_dwarf_f15_mips64: return "f15";
-            case gcc_dwarf_f16_mips64: return "f16";
-            case gcc_dwarf_f17_mips64: return "f17";
-            case gcc_dwarf_f18_mips64: return "f18";
-            case gcc_dwarf_f19_mips64: return "f19";
-            case gcc_dwarf_f20_mips64: return "f20";
-            case gcc_dwarf_f21_mips64: return "f21";
-            case gcc_dwarf_f22_mips64: return "f22";
-            case gcc_dwarf_f23_mips64: return "f23";
-            case gcc_dwarf_f24_mips64: return "f24";
-            case gcc_dwarf_f25_mips64: return "f25";
-            case gcc_dwarf_f26_mips64: return "f26";
-            case gcc_dwarf_f27_mips64: return "f27";
-            case gcc_dwarf_f28_mips64: return "f28";
-            case gcc_dwarf_f29_mips64: return "f29";
-            case gcc_dwarf_f30_mips64: return "f30";
-            case gcc_dwarf_f31_mips64: return "f31";
+            case dwarf_sp_mips64:      return "r29"; 
+            case dwarf_r30_mips64:     return "r30"; 
+            case dwarf_ra_mips64:      return "r31";
+            case dwarf_f0_mips64:      return "f0";
+            case dwarf_f1_mips64:      return "f1";
+            case dwarf_f2_mips64:      return "f2";
+            case dwarf_f3_mips64:      return "f3";
+            case dwarf_f4_mips64:      return "f4";
+            case dwarf_f5_mips64:      return "f5";
+            case dwarf_f6_mips64:      return "f6";
+            case dwarf_f7_mips64:      return "f7";
+            case dwarf_f8_mips64:      return "f8";
+            case dwarf_f9_mips64:      return "f9";
+            case dwarf_f10_mips64:     return "f10";
+            case dwarf_f11_mips64:     return "f11";
+            case dwarf_f12_mips64:     return "f12";
+            case dwarf_f13_mips64:     return "f13";
+            case dwarf_f14_mips64:     return "f14";
+            case dwarf_f15_mips64:     return "f15";
+            case dwarf_f16_mips64:     return "f16";
+            case dwarf_f17_mips64:     return "f17";
+            case dwarf_f18_mips64:     return "f18";
+            case dwarf_f19_mips64:     return "f19";
+            case dwarf_f20_mips64:     return "f20";
+            case dwarf_f21_mips64:     return "f21";
+            case dwarf_f22_mips64:     return "f22";
+            case dwarf_f23_mips64:     return "f23";
+            case dwarf_f24_mips64:     return "f24";
+            case dwarf_f25_mips64:     return "f25";
+            case dwarf_f26_mips64:     return "f26";
+            case dwarf_f27_mips64:     return "f27";
+            case dwarf_f28_mips64:     return "f28";
+            case dwarf_f29_mips64:     return "f29";
+            case dwarf_f30_mips64:     return "f30";
+            case dwarf_f31_mips64:     return "f31";
+            case dwarf_w0_mips64:      return "w0";
+            case dwarf_w1_mips64:      return "w1";
+            case dwarf_w2_mips64:      return "w2";
+            case dwarf_w3_mips64:      return "w3";
+            case dwarf_w4_mips64:      return "w4";
+            case dwarf_w5_mips64:      return "w5";
+            case dwarf_w6_mips64:      return "w6";
+            case dwarf_w7_mips64:      return "w7";
+            case dwarf_w8_mips64:      return "w8";
+            case dwarf_w9_mips64:      return "w9";
+            case dwarf_w10_mips64:     return "w10";
+            case dwarf_w11_mips64:     return "w11";
+            case dwarf_w12_mips64:     return "w12";
+            case dwarf_w13_mips64:     return "w13";
+            case dwarf_w14_mips64:     return "w14";
+            case dwarf_w15_mips64:     return "w15";
+            case dwarf_w16_mips64:     return "w16";
+            case dwarf_w17_mips64:     return "w17";
+            case dwarf_w18_mips64:     return "w18";
+            case dwarf_w19_mips64:     return "w19";
+            case dwarf_w20_mips64:     return "w20";
+            case dwarf_w21_mips64:     return "w21";
+            case dwarf_w22_mips64:     return "w22";
+            case dwarf_w23_mips64:     return "w23";
+            case dwarf_w24_mips64:     return "w24";
+            case dwarf_w25_mips64:     return "w25";
+            case dwarf_w26_mips64:     return "w26";
+            case dwarf_w27_mips64:     return "w27";
+            case dwarf_w28_mips64:     return "w28";
+            case dwarf_w29_mips64:     return "w29";
+            case dwarf_w30_mips64:     return "w30";
+            case dwarf_w31_mips64:     return "w31";
+            case dwarf_mir_mips64:     return "mir";
+            case dwarf_mcsr_mips64:    return "mcsr";
+            case dwarf_config5_mips64: return "config5";
             default:
                 break;
         }
@@ -264,78 +299,113 @@ EmulateInstructionMIPS64::GetRegisterName (unsigned reg_num, bool alternate_name
 
     switch (reg_num)
     {
-        case gcc_dwarf_zero_mips64:     return "r0";
-        case gcc_dwarf_r1_mips64:       return "r1";
-        case gcc_dwarf_r2_mips64:       return "r2";
-        case gcc_dwarf_r3_mips64:       return "r3";
-        case gcc_dwarf_r4_mips64:       return "r4";
-        case gcc_dwarf_r5_mips64:       return "r5";
-        case gcc_dwarf_r6_mips64:       return "r6";
-        case gcc_dwarf_r7_mips64:       return "r7";
-        case gcc_dwarf_r8_mips64:       return "r8";
-        case gcc_dwarf_r9_mips64:       return "r9";
-        case gcc_dwarf_r10_mips64:      return "r10";
-        case gcc_dwarf_r11_mips64:      return "r11";
-        case gcc_dwarf_r12_mips64:      return "r12";
-        case gcc_dwarf_r13_mips64:      return "r13";
-        case gcc_dwarf_r14_mips64:      return "r14";
-        case gcc_dwarf_r15_mips64:      return "r15";
-        case gcc_dwarf_r16_mips64:      return "r16";
-        case gcc_dwarf_r17_mips64:      return "r17";
-        case gcc_dwarf_r18_mips64:      return "r18";
-        case gcc_dwarf_r19_mips64:      return "r19";
-        case gcc_dwarf_r20_mips64:      return "r20";
-        case gcc_dwarf_r21_mips64:      return "r21";
-        case gcc_dwarf_r22_mips64:      return "r22";
-        case gcc_dwarf_r23_mips64:      return "r23";
-        case gcc_dwarf_r24_mips64:      return "r24";
-        case gcc_dwarf_r25_mips64:      return "r25";
-        case gcc_dwarf_r26_mips64:      return "r26";
-        case gcc_dwarf_r27_mips64:      return "r27";
-        case gcc_dwarf_gp_mips64:       return "gp";
-        case gcc_dwarf_sp_mips64:       return "sp";
-        case gcc_dwarf_r30_mips64:      return "fp";
-        case gcc_dwarf_ra_mips64:       return "ra";
-        case gcc_dwarf_sr_mips64:       return "sr";
-        case gcc_dwarf_lo_mips64:       return "lo";
-        case gcc_dwarf_hi_mips64:       return "hi";
-        case gcc_dwarf_bad_mips64:      return "bad";
-        case gcc_dwarf_cause_mips64:    return "cause";
-        case gcc_dwarf_pc_mips64:       return "pc";
-        case gcc_dwarf_f0_mips64:       return "f0";
-        case gcc_dwarf_f1_mips64:       return "f1";
-        case gcc_dwarf_f2_mips64:       return "f2";
-        case gcc_dwarf_f3_mips64:       return "f3";
-        case gcc_dwarf_f4_mips64:       return "f4";
-        case gcc_dwarf_f5_mips64:       return "f5";
-        case gcc_dwarf_f6_mips64:       return "f6";
-        case gcc_dwarf_f7_mips64:       return "f7";
-        case gcc_dwarf_f8_mips64:       return "f8";
-        case gcc_dwarf_f9_mips64:       return "f9";
-        case gcc_dwarf_f10_mips64:      return "f10";
-        case gcc_dwarf_f11_mips64:      return "f11";
-        case gcc_dwarf_f12_mips64:      return "f12";
-        case gcc_dwarf_f13_mips64:      return "f13";
-        case gcc_dwarf_f14_mips64:      return "f14";
-        case gcc_dwarf_f15_mips64:      return "f15";
-        case gcc_dwarf_f16_mips64:      return "f16";
-        case gcc_dwarf_f17_mips64:      return "f17";
-        case gcc_dwarf_f18_mips64:      return "f18";
-        case gcc_dwarf_f19_mips64:      return "f19";
-        case gcc_dwarf_f20_mips64:      return "f20";
-        case gcc_dwarf_f21_mips64:      return "f21";
-        case gcc_dwarf_f22_mips64:      return "f22";
-        case gcc_dwarf_f23_mips64:      return "f23";
-        case gcc_dwarf_f24_mips64:      return "f24";
-        case gcc_dwarf_f25_mips64:      return "f25";
-        case gcc_dwarf_f26_mips64:      return "f26";
-        case gcc_dwarf_f27_mips64:      return "f27";
-        case gcc_dwarf_f28_mips64:      return "f28";
-        case gcc_dwarf_f29_mips64:      return "f29";
-        case gcc_dwarf_f30_mips64:      return "f30";
-        case gcc_dwarf_f31_mips64:      return "f31";
-        case gcc_dwarf_fcsr_mips64:     return "fcsr";
-        case gcc_dwarf_fir_mips64:      return "fir";
+        case dwarf_zero_mips64:     return "r0";
+        case dwarf_r1_mips64:       return "r1";
+        case dwarf_r2_mips64:       return "r2";
+        case dwarf_r3_mips64:       return "r3";
+        case dwarf_r4_mips64:       return "r4";
+        case dwarf_r5_mips64:       return "r5";
+        case dwarf_r6_mips64:       return "r6";
+        case dwarf_r7_mips64:       return "r7";
+        case dwarf_r8_mips64:       return "r8";
+        case dwarf_r9_mips64:       return "r9";
+        case dwarf_r10_mips64:      return "r10";
+        case dwarf_r11_mips64:      return "r11";
+        case dwarf_r12_mips64:      return "r12";
+        case dwarf_r13_mips64:      return "r13";
+        case dwarf_r14_mips64:      return "r14";
+        case dwarf_r15_mips64:      return "r15";
+        case dwarf_r16_mips64:      return "r16";
+        case dwarf_r17_mips64:      return "r17";
+        case dwarf_r18_mips64:      return "r18";
+        case dwarf_r19_mips64:      return "r19";
+        case dwarf_r20_mips64:      return "r20";
+        case dwarf_r21_mips64:      return "r21";
+        case dwarf_r22_mips64:      return "r22";
+        case dwarf_r23_mips64:      return "r23";
+        case dwarf_r24_mips64:      return "r24";
+        case dwarf_r25_mips64:      return "r25";
+        case dwarf_r26_mips64:      return "r26";
+        case dwarf_r27_mips64:      return "r27";
+        case dwarf_gp_mips64:       return "gp";
+        case dwarf_sp_mips64:       return "sp";
+        case dwarf_r30_mips64:      return "fp";
+        case dwarf_ra_mips64:       return "ra";
+        case dwarf_sr_mips64:       return "sr";
+        case dwarf_lo_mips64:       return "lo";
+        case dwarf_hi_mips64:       return "hi";
+        case dwarf_bad_mips64:      return "bad";
+        case dwarf_cause_mips64:    return "cause";
+        case dwarf_pc_mips64:       return "pc";
+        case dwarf_f0_mips64:       return "f0";
+        case dwarf_f1_mips64:       return "f1";
+        case dwarf_f2_mips64:       return "f2";
+        case dwarf_f3_mips64:       return "f3";
+        case dwarf_f4_mips64:       return "f4";
+        case dwarf_f5_mips64:       return "f5";
+        case dwarf_f6_mips64:       return "f6";
+        case dwarf_f7_mips64:       return "f7";
+        case dwarf_f8_mips64:       return "f8";
+        case dwarf_f9_mips64:       return "f9";
+        case dwarf_f10_mips64:      return "f10";
+        case dwarf_f11_mips64:      return "f11";
+        case dwarf_f12_mips64:      return "f12";
+        case dwarf_f13_mips64:      return "f13";
+        case dwarf_f14_mips64:      return "f14";
+        case dwarf_f15_mips64:      return "f15";
+        case dwarf_f16_mips64:      return "f16";
+        case dwarf_f17_mips64:      return "f17";
+        case dwarf_f18_mips64:      return "f18";
+        case dwarf_f19_mips64:      return "f19";
+        case dwarf_f20_mips64:      return "f20";
+        case dwarf_f21_mips64:      return "f21";
+        case dwarf_f22_mips64:      return "f22";
+        case dwarf_f23_mips64:      return "f23";
+        case dwarf_f24_mips64:      return "f24";
+        case dwarf_f25_mips64:      return "f25";
+        case dwarf_f26_mips64:      return "f26";
+        case dwarf_f27_mips64:      return "f27";
+        case dwarf_f28_mips64:      return "f28";
+        case dwarf_f29_mips64:      return "f29";
+        case dwarf_f30_mips64:      return "f30";
+        case dwarf_f31_mips64:      return "f31";
+        case dwarf_fcsr_mips64:     return "fcsr";
+        case dwarf_fir_mips64:      return "fir";
+        case dwarf_w0_mips64:       return "w0";
+        case dwarf_w1_mips64:       return "w1";
+        case dwarf_w2_mips64:       return "w2";
+        case dwarf_w3_mips64:       return "w3";
+        case dwarf_w4_mips64:       return "w4";
+        case dwarf_w5_mips64:       return "w5";
+        case dwarf_w6_mips64:       return "w6";
+        case dwarf_w7_mips64:       return "w7";
+        case dwarf_w8_mips64:       return "w8";
+        case dwarf_w9_mips64:       return "w9";
+        case dwarf_w10_mips64:      return "w10";
+        case dwarf_w11_mips64:      return "w11";
+        case dwarf_w12_mips64:      return "w12";
+        case dwarf_w13_mips64:      return "w13";
+        case dwarf_w14_mips64:      return "w14";
+        case dwarf_w15_mips64:      return "w15";
+        case dwarf_w16_mips64:      return "w16";
+        case dwarf_w17_mips64:      return "w17";
+        case dwarf_w18_mips64:      return "w18";
+        case dwarf_w19_mips64:      return "w19";
+        case dwarf_w20_mips64:      return "w20";
+        case dwarf_w21_mips64:      return "w21";
+        case dwarf_w22_mips64:      return "w22";
+        case dwarf_w23_mips64:      return "w23";
+        case dwarf_w24_mips64:      return "w24";
+        case dwarf_w25_mips64:      return "w25";
+        case dwarf_w26_mips64:      return "w26";
+        case dwarf_w27_mips64:      return "w27";
+        case dwarf_w28_mips64:      return "w28";
+        case dwarf_w29_mips64:      return "w29";
+        case dwarf_w30_mips64:      return "w30";
+        case dwarf_w31_mips64:      return "w31";
+        case dwarf_mcsr_mips64:     return "mcsr";
+        case dwarf_mir_mips64:      return "mir";
+        case dwarf_config5_mips64:  return "config5";
     }
     return nullptr;
 }
@@ -347,11 +417,11 @@ EmulateInstructionMIPS64::GetRegisterInfo (RegisterKind reg_kind, uint32_t reg_n
     {
         switch (reg_num)
         {
-            case LLDB_REGNUM_GENERIC_PC:    reg_kind = eRegisterKindDWARF; reg_num = gcc_dwarf_pc_mips64; break;
-            case LLDB_REGNUM_GENERIC_SP:    reg_kind = eRegisterKindDWARF; reg_num = gcc_dwarf_sp_mips64; break;
-            case LLDB_REGNUM_GENERIC_FP:    reg_kind = eRegisterKindDWARF; reg_num = gcc_dwarf_r30_mips64; break;
-            case LLDB_REGNUM_GENERIC_RA:    reg_kind = eRegisterKindDWARF; reg_num = gcc_dwarf_ra_mips64; break;
-            case LLDB_REGNUM_GENERIC_FLAGS: reg_kind = eRegisterKindDWARF; reg_num = gcc_dwarf_sr_mips64; break;
+            case LLDB_REGNUM_GENERIC_PC:    reg_kind = eRegisterKindDWARF; reg_num = dwarf_pc_mips64; break;
+            case LLDB_REGNUM_GENERIC_SP:    reg_kind = eRegisterKindDWARF; reg_num = dwarf_sp_mips64; break;
+            case LLDB_REGNUM_GENERIC_FP:    reg_kind = eRegisterKindDWARF; reg_num = dwarf_r30_mips64; break;
+            case LLDB_REGNUM_GENERIC_RA:    reg_kind = eRegisterKindDWARF; reg_num = dwarf_ra_mips64; break;
+            case LLDB_REGNUM_GENERIC_FLAGS: reg_kind = eRegisterKindDWARF; reg_num = dwarf_sr_mips64; break;
             default:
                 return false;
         }
@@ -362,18 +432,24 @@ EmulateInstructionMIPS64::GetRegisterInfo (RegisterKind reg_kind, uint32_t reg_n
        ::memset (&reg_info, 0, sizeof(RegisterInfo));
        ::memset (reg_info.kinds, LLDB_INVALID_REGNUM, sizeof(reg_info.kinds));
 
-       if (reg_num == gcc_dwarf_sr_mips64 || reg_num == gcc_dwarf_fcsr_mips64 || reg_num == gcc_dwarf_fir_mips64)
+       if (reg_num == dwarf_sr_mips64 || reg_num == dwarf_fcsr_mips64 || reg_num == dwarf_fir_mips64 || reg_num == dwarf_mcsr_mips64 || reg_num == dwarf_mir_mips64 || reg_num == dwarf_config5_mips64)
        {
            reg_info.byte_size = 4;
            reg_info.format = eFormatHex;
            reg_info.encoding = eEncodingUint;
        }
-       else if ((int)reg_num >= gcc_dwarf_zero_mips64 && (int)reg_num <= gcc_dwarf_f31_mips64)
+       else if ((int)reg_num >= dwarf_zero_mips64 && (int)reg_num <= dwarf_f31_mips64)
        {
            reg_info.byte_size = 8;
            reg_info.format = eFormatHex;
            reg_info.encoding = eEncodingUint;
        }
+       else if ((int)reg_num >= dwarf_w0_mips64 && (int)reg_num <= dwarf_w31_mips64)
+       {
+           reg_info.byte_size = 16;
+           reg_info.format = eFormatVectorOfUInt8;
+           reg_info.encoding = eEncodingVector;
+       }
        else
        {
            return false;
@@ -385,11 +461,11 @@ EmulateInstructionMIPS64::GetRegisterInfo (RegisterKind reg_kind, uint32_t reg_n
 
        switch (reg_num)
        {
-           case gcc_dwarf_r30_mips64: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP; break;
-           case gcc_dwarf_ra_mips64: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_RA; break;
-           case gcc_dwarf_sp_mips64: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP; break;
-           case gcc_dwarf_pc_mips64: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC; break;
-           case gcc_dwarf_sr_mips64: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS; break;
+           case dwarf_r30_mips64: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP; break;
+           case dwarf_ra_mips64: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_RA; break;
+           case dwarf_sp_mips64: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP; break;
+           case dwarf_pc_mips64: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC; break;
+           case dwarf_sr_mips64: reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS; break;
            default: break;
        }
        return true;
@@ -410,8 +486,65 @@ EmulateInstructionMIPS64::GetOpcodeForInstruction (const char *op_name)
         { "SD",         &EmulateInstructionMIPS64::Emulate_SD,          "SD rt,offset(rs)"          },
         { "LD",         &EmulateInstructionMIPS64::Emulate_LD,          "LD rt,offset(base)"        },
 
-        { "SW",         &EmulateInstructionMIPS64::Emulate_SW,          "SW rt,offset(rs)"          },
-        { "LW",         &EmulateInstructionMIPS64::Emulate_LW,          "LW rt,offset(rs)"          },
+
+
+
+        //----------------------------------------------------------------------
+        // Load/Store  instructions
+        //----------------------------------------------------------------------
+        /* Following list of emulated instructions are required by implementation of hardware watchpoint
+           for MIPS in lldb. As we just need the address accessed by instructions, we have generalised 
+           all these instructions in 2 functions depending on their addressing modes */
+
+        { "LB",         &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LB    rt, offset(base)" },
+        { "LBE",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LBE   rt, offset(base)" },
+        { "LBU",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LBU   rt, offset(base)" },
+        { "LBUE",       &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LBUE  rt, offset(base)" },
+        { "LDC1",       &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LDC1  ft, offset(base)" },
+        { "LDL",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LDL   rt, offset(base)" },
+        { "LDR",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LDR   rt, offset(base)" },
+        { "LLD",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LLD   rt, offset(base)" },
+        { "LDC2",       &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LDC2  rt, offset(base)" },
+        { "LDXC1",      &EmulateInstructionMIPS64::Emulate_LDST_Reg,          "LDXC1 fd, index (base)" },
+        { "LH",         &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LH    rt, offset(base)" },
+        { "LHE",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LHE   rt, offset(base)" },
+        { "LHU",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LHU   rt, offset(base)" },
+        { "LHUE",       &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LHUE  rt, offset(base)" },
+        { "LL",         &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LL    rt, offset(base)" },
+        { "LLE",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LLE   rt, offset(base)" },
+        { "LUXC1",      &EmulateInstructionMIPS64::Emulate_LDST_Reg,          "LUXC1 fd, index (base)" },
+        { "LW",         &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LW    rt, offset(rs)"   },
+        { "LWC1",       &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LWC1  ft, offset(base)" },
+        { "LWC2",       &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LWC2  rt, offset(base)" },
+        { "LWE",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LWE   rt, offset(base)" },
+        { "LWL",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LWL   rt, offset(base)" },
+        { "LWLE",       &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LWLE  rt, offset(base)" },
+        { "LWR",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LWR   rt, offset(base)" },
+        { "LWRE",       &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "LWRE  rt, offset(base)" },
+        { "LWXC1",      &EmulateInstructionMIPS64::Emulate_LDST_Reg,          "LWXC1 fd, index (base)" },
+
+        { "SB",         &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SB    rt, offset(base)" },
+        { "SBE",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SBE   rt, offset(base)" },
+        { "SC",         &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SC    rt, offset(base)" },
+        { "SCE",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SCE   rt, offset(base)" },
+        { "SCD",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SCD   rt, offset(base)" },
+        { "SDL",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SDL   rt, offset(base)" },
+        { "SDR",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SDR   rt, offset(base)" },
+        { "SDC1",       &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SDC1  ft, offset(base)" },
+        { "SDC2",       &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SDC2  rt, offset(base)" },
+        { "SDXC1",      &EmulateInstructionMIPS64::Emulate_LDST_Reg,          "SDXC1 fs, index (base)" },
+        { "SH",         &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SH    rt, offset(base)" },
+        { "SHE",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SHE   rt, offset(base)" },
+        { "SUXC1",      &EmulateInstructionMIPS64::Emulate_LDST_Reg,          "SUXC1 fs, index (base)" },
+        { "SW",         &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SW    rt, offset(rs)"   },
+        { "SWC1",       &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SWC1  ft, offset(base)" },
+        { "SWC2",       &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SWC2  rt, offset(base)" },
+        { "SWE",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SWE   rt, offset(base)" },
+        { "SWL",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SWL   rt, offset(base)" },
+        { "SWLE",       &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SWLE  rt, offset(base)" },
+        { "SWR",        &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SWR   rt, offset(base)" },
+        { "SWRE",       &EmulateInstructionMIPS64::Emulate_LDST_Imm,          "SWRE  rt, offset(base)" },
+        { "SWXC1",      &EmulateInstructionMIPS64::Emulate_LDST_Reg,          "SWXC1 fs, index (base)" },
 
         //----------------------------------------------------------------------
         // Branch instructions
@@ -474,6 +607,16 @@ EmulateInstructionMIPS64::GetOpcodeForInstruction (const char *op_name)
         { "BC1ANY2T",   &EmulateInstructionMIPS64::Emulate_BC1ANY2T,    "BC1ANY2T cc, offset"       },
         { "BC1ANY4F",   &EmulateInstructionMIPS64::Emulate_BC1ANY4F,    "BC1ANY4F cc, offset"       },
         { "BC1ANY4T",   &EmulateInstructionMIPS64::Emulate_BC1ANY4T,    "BC1ANY4T cc, offset"       },
+        { "BNZ_B",      &EmulateInstructionMIPS64::Emulate_BNZB,        "BNZ.b wt,s16"              },
+        { "BNZ_H",      &EmulateInstructionMIPS64::Emulate_BNZH,        "BNZ.h wt,s16"              },
+        { "BNZ_W",      &EmulateInstructionMIPS64::Emulate_BNZW,        "BNZ.w wt,s16"              },
+        { "BNZ_D",      &EmulateInstructionMIPS64::Emulate_BNZD,        "BNZ.d wt,s16"              },
+        { "BZ_B",       &EmulateInstructionMIPS64::Emulate_BZB,         "BZ.b wt,s16"               },
+        { "BZ_H",       &EmulateInstructionMIPS64::Emulate_BZH,         "BZ.h wt,s16"               },
+        { "BZ_W",       &EmulateInstructionMIPS64::Emulate_BZW,         "BZ.w wt,s16"               },
+        { "BZ_D",       &EmulateInstructionMIPS64::Emulate_BZD,         "BZ.d wt,s16"               },
+        { "BNZ_V",      &EmulateInstructionMIPS64::Emulate_BNZV,        "BNZ.V wt,s16"              },
+        { "BZ_V",       &EmulateInstructionMIPS64::Emulate_BZV,         "BZ.V wt,s16"               },
     };
 
     static const size_t k_num_mips_opcodes = llvm::array_lengthof(g_opcodes);
@@ -545,7 +688,7 @@ EmulateInstructionMIPS64::EvaluateInstruction (uint32_t evaluate_options)
 
     if (auto_advance_pc)
     {
-        old_pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+        old_pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
         if (!success)
             return false;
     }
@@ -557,7 +700,7 @@ EmulateInstructionMIPS64::EvaluateInstruction (uint32_t evaluate_options)
 
     if (auto_advance_pc)
     {
-        new_pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+        new_pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
         if (!success)
             return false;
 
@@ -566,7 +709,7 @@ EmulateInstructionMIPS64::EvaluateInstruction (uint32_t evaluate_options)
         {
             new_pc += 4;
             Context context;
-            if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, new_pc))
+            if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, new_pc))
                 return false;
         }
     }
@@ -584,10 +727,10 @@ EmulateInstructionMIPS64::CreateFunctionEntryUnwind (UnwindPlan &unwind_plan)
     const bool can_replace = false;
 
     // Our previous Call Frame Address is the stack pointer
-    row->GetCFAValue().SetIsRegisterPlusOffset(gcc_dwarf_sp_mips64, 0);
+    row->GetCFAValue().SetIsRegisterPlusOffset(dwarf_sp_mips64, 0);
 
     // Our previous PC is in the RA
-    row->SetRegisterLocationToRegister(gcc_dwarf_pc_mips64, gcc_dwarf_ra_mips64, can_replace);
+    row->SetRegisterLocationToRegister(dwarf_pc_mips64, dwarf_ra_mips64, can_replace);
 
     unwind_plan.AppendRow (row);
 
@@ -595,6 +738,7 @@ EmulateInstructionMIPS64::CreateFunctionEntryUnwind (UnwindPlan &unwind_plan)
     unwind_plan.SetSourceName ("EmulateInstructionMIPS64");
     unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
     unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolYes);
+    unwind_plan.SetReturnAddressRegister (dwarf_ra_mips64);
 
     return true;
 }
@@ -604,18 +748,18 @@ EmulateInstructionMIPS64::nonvolatile_reg_p (uint64_t regnum)
 {
     switch (regnum)
     {
-        case gcc_dwarf_r16_mips64:
-        case gcc_dwarf_r17_mips64:
-        case gcc_dwarf_r18_mips64:
-        case gcc_dwarf_r19_mips64:
-        case gcc_dwarf_r20_mips64:
-        case gcc_dwarf_r21_mips64:
-        case gcc_dwarf_r22_mips64:
-        case gcc_dwarf_r23_mips64:
-        case gcc_dwarf_gp_mips64:
-        case gcc_dwarf_sp_mips64:
-        case gcc_dwarf_r30_mips64:
-        case gcc_dwarf_ra_mips64:
+        case dwarf_r16_mips64:
+        case dwarf_r17_mips64:
+        case dwarf_r18_mips64:
+        case dwarf_r19_mips64:
+        case dwarf_r20_mips64:
+        case dwarf_r21_mips64:
+        case dwarf_r22_mips64:
+        case dwarf_r23_mips64:
+        case dwarf_gp_mips64:
+        case dwarf_sp_mips64:
+        case dwarf_r30_mips64:
+        case dwarf_ra_mips64:
             return true;
         default:
             return false;
@@ -636,10 +780,10 @@ EmulateInstructionMIPS64::Emulate_DADDiu (llvm::MCInst& insn)
     src = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
 
     /* Check if this is daddiu sp,<src>,imm16 */
-    if (dst == gcc_dwarf_sp_mips64)
+    if (dst == dwarf_sp_mips64)
     {
         /* read <src> register */
-        uint64_t src_opd_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + src, 0, &success);
+        uint64_t src_opd_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + src, 0, &success);
         if (!success)
             return false;
 
@@ -647,79 +791,19 @@ EmulateInstructionMIPS64::Emulate_DADDiu (llvm::MCInst& insn)
 
         Context context;
         RegisterInfo reg_info_sp;
-        if (GetRegisterInfo (eRegisterKindDWARF, gcc_dwarf_sp_mips64, reg_info_sp))
+        if (GetRegisterInfo (eRegisterKindDWARF, dwarf_sp_mips64, reg_info_sp))
             context.SetRegisterPlusOffset (reg_info_sp, imm);
 
         /* We are allocating bytes on stack */
         context.type = eContextAdjustStackPointer;
 
-        WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_sp_mips64, result);
+        WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_sp_mips64, result);
     }
     
     return true;
 }
 
 bool
-EmulateInstructionMIPS64::Emulate_SW (llvm::MCInst& insn)
-{
-    bool success = false;
-    uint32_t base;
-    int64_t imm, address;
-    Context bad_vaddr_context;
-
-    base = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
-    imm = insn.getOperand(2).getImm();
-
-    RegisterInfo reg_info_base;
-    if (!GetRegisterInfo (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + base, reg_info_base))
-        return false;
-
-    /* read base register */
-    address = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + base, 0, &success);
-    if (!success)
-        return false;
-
-    /* destination address */
-    address = address + imm;
-
-    /* Set the bad_vaddr register with base address used in the instruction */
-    bad_vaddr_context.type = eContextInvalid;
-    WriteRegisterUnsigned (bad_vaddr_context, eRegisterKindDWARF, gcc_dwarf_bad_mips64, address);
-
-    return true;
-}
-
-bool
-EmulateInstructionMIPS64::Emulate_LW (llvm::MCInst& insn)
-{
-    bool success = false;
-    uint32_t base;
-    int64_t imm, address;
-    Context bad_vaddr_context;
-
-    base = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
-    imm = insn.getOperand(2).getImm();
-
-    RegisterInfo reg_info_base;
-    if (!GetRegisterInfo (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + base, reg_info_base))
-        return false;
-
-    /* read base register */
-    address = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + base, 0, &success);
-    if (!success)
-        return false;
-
-    /* destination address */
-    address = address + imm;
-
-    /* Set the bad_vaddr register with base address used in the instruction */
-    bad_vaddr_context.type = eContextInvalid;
-    WriteRegisterUnsigned (bad_vaddr_context, eRegisterKindDWARF, gcc_dwarf_bad_mips64, address);
-
-    return true;
-}
-
-bool
 EmulateInstructionMIPS64::Emulate_SD (llvm::MCInst& insn)
 {
     uint64_t address;
@@ -734,12 +818,12 @@ EmulateInstructionMIPS64::Emulate_SD (llvm::MCInst& insn)
     src = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     base = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
 
-    if (!GetRegisterInfo (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + base, reg_info_base)
-        || !GetRegisterInfo (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + src, reg_info_src))
+    if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips64 + base, reg_info_base)
+        || !GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips64 + src, reg_info_src))
         return false;
 
     /* read SP */
-    address = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + base, 0, &success);
+    address = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + base, 0, &success);
     if (!success)
         return false;
 
@@ -747,7 +831,7 @@ EmulateInstructionMIPS64::Emulate_SD (llvm::MCInst& insn)
     address = address + imm;
 
     /* We look for sp based non-volatile register stores */
-    if (base == gcc_dwarf_sp_mips64 && nonvolatile_reg_p (src))
+    if (base == dwarf_sp_mips64 && nonvolatile_reg_p (src))
     {
         Context context;
         RegisterValue data_src;
@@ -769,7 +853,7 @@ EmulateInstructionMIPS64::Emulate_SD (llvm::MCInst& insn)
 
     /* Set the bad_vaddr register with base address used in the instruction */
     bad_vaddr_context.type = eContextInvalid;
-    WriteRegisterUnsigned (bad_vaddr_context, eRegisterKindDWARF, gcc_dwarf_bad_mips64, address);
+    WriteRegisterUnsigned (bad_vaddr_context, eRegisterKindDWARF, dwarf_bad_mips64, address);
 
     return true;
 }
@@ -777,17 +861,38 @@ EmulateInstructionMIPS64::Emulate_SD (llvm::MCInst& insn)
 bool
 EmulateInstructionMIPS64::Emulate_LD (llvm::MCInst& insn)
 {
+    bool success =false;
     uint32_t src, base;
+    int64_t imm, address;
+    Context bad_vaddr_context;
 
     src = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     base = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
+    imm = insn.getOperand(2).getImm();
+
+    RegisterInfo reg_info_base;
+    if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips64 + base, reg_info_base))
+        return false;
+
+    /* read base register */
+    address = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + base, 0, &success);
+    if (!success)
+        return false;
 
-    if (base == gcc_dwarf_sp_mips64 && nonvolatile_reg_p (src))
+    /* destination address */
+    address = address + imm;
+
+    /* Set the bad_vaddr register with base address used in the instruction */
+    bad_vaddr_context.type = eContextInvalid;
+    WriteRegisterUnsigned (bad_vaddr_context, eRegisterKindDWARF, dwarf_bad_mips64, address);
+
+
+    if (base == dwarf_sp_mips64 && nonvolatile_reg_p (src))
     {
         RegisterValue data_src;
         RegisterInfo reg_info_src;
 
-        if (!GetRegisterInfo (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + src, reg_info_src))
+        if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips64 + src, reg_info_src))
             return false;
 
         Context context;
@@ -821,15 +926,15 @@ EmulateInstructionMIPS64::Emulate_BEQ (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, 0, &success);
+    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rt, 0, &success);
     if (!success)
         return false;
 
@@ -841,7 +946,7 @@ EmulateInstructionMIPS64::Emulate_BEQ (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -864,15 +969,15 @@ EmulateInstructionMIPS64::Emulate_BNE (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, 0, &success);
+    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rt, 0, &success);
     if (!success)
         return false;
 
@@ -884,7 +989,7 @@ EmulateInstructionMIPS64::Emulate_BNE (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -907,15 +1012,15 @@ EmulateInstructionMIPS64::Emulate_BEQL (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, 0, &success);
+    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rt, 0, &success);
     if (!success)
         return false;
 
@@ -927,7 +1032,7 @@ EmulateInstructionMIPS64::Emulate_BEQL (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -950,15 +1055,15 @@ EmulateInstructionMIPS64::Emulate_BNEL (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, 0, &success);
+    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rt, 0, &success);
     if (!success)
         return false;
 
@@ -970,7 +1075,7 @@ EmulateInstructionMIPS64::Emulate_BNEL (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -993,11 +1098,11 @@ EmulateInstructionMIPS64::Emulate_BGEZL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1009,7 +1114,7 @@ EmulateInstructionMIPS64::Emulate_BGEZL (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -1032,11 +1137,11 @@ EmulateInstructionMIPS64::Emulate_BLTZL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1048,7 +1153,7 @@ EmulateInstructionMIPS64::Emulate_BLTZL (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -1071,11 +1176,11 @@ EmulateInstructionMIPS64::Emulate_BGTZL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1087,7 +1192,7 @@ EmulateInstructionMIPS64::Emulate_BGTZL (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -1110,11 +1215,11 @@ EmulateInstructionMIPS64::Emulate_BLEZL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1126,7 +1231,7 @@ EmulateInstructionMIPS64::Emulate_BLEZL (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -1149,11 +1254,11 @@ EmulateInstructionMIPS64::Emulate_BGTZ (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1165,7 +1270,7 @@ EmulateInstructionMIPS64::Emulate_BGTZ (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -1188,11 +1293,11 @@ EmulateInstructionMIPS64::Emulate_BLEZ (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1204,7 +1309,7 @@ EmulateInstructionMIPS64::Emulate_BLEZ (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -1227,11 +1332,11 @@ EmulateInstructionMIPS64::Emulate_BLTZ (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1243,7 +1348,7 @@ EmulateInstructionMIPS64::Emulate_BLTZ (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -1266,11 +1371,11 @@ EmulateInstructionMIPS64::Emulate_BGEZALL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1282,10 +1387,10 @@ EmulateInstructionMIPS64::Emulate_BGEZALL (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips64, pc + 8))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips64, pc + 8))
         return false;
 
     return true;
@@ -1305,7 +1410,7 @@ EmulateInstructionMIPS64::Emulate_BAL (llvm::MCInst& insn)
     */
     offset = insn.getOperand(0).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
@@ -1313,10 +1418,10 @@ EmulateInstructionMIPS64::Emulate_BAL (llvm::MCInst& insn)
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips64, pc + 8))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips64, pc + 8))
         return false;
 
     return true;
@@ -1336,7 +1441,7 @@ EmulateInstructionMIPS64::Emulate_BALC (llvm::MCInst& insn)
     */
     offset = insn.getOperand(0).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
@@ -1344,10 +1449,10 @@ EmulateInstructionMIPS64::Emulate_BALC (llvm::MCInst& insn)
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips64, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips64, pc + 4))
         return false;
 
     return true;
@@ -1372,11 +1477,11 @@ EmulateInstructionMIPS64::Emulate_BGEZAL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1387,10 +1492,10 @@ EmulateInstructionMIPS64::Emulate_BGEZAL (llvm::MCInst& insn)
     else
         target = pc + 8;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips64, pc + 8))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips64, pc + 8))
         return false;
 
     return true;
@@ -1415,11 +1520,11 @@ EmulateInstructionMIPS64::Emulate_BLTZAL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1430,10 +1535,10 @@ EmulateInstructionMIPS64::Emulate_BLTZAL (llvm::MCInst& insn)
     else
         target = pc + 8;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips64, pc + 8))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips64, pc + 8))
         return false;
 
     return true;
@@ -1458,11 +1563,11 @@ EmulateInstructionMIPS64::Emulate_BLTZALL (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1473,10 +1578,10 @@ EmulateInstructionMIPS64::Emulate_BLTZALL (llvm::MCInst& insn)
     else
         target = pc + 8;    /* skip delay slot */
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips64, pc + 8))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips64, pc + 8))
         return false;
 
     return true;
@@ -1502,11 +1607,11 @@ EmulateInstructionMIPS64::Emulate_BLEZALC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1517,10 +1622,10 @@ EmulateInstructionMIPS64::Emulate_BLEZALC (llvm::MCInst& insn)
     else
         target = pc + 4;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips64, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips64, pc + 4))
         return false;
 
     return true;
@@ -1545,11 +1650,11 @@ EmulateInstructionMIPS64::Emulate_BGEZALC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1560,10 +1665,10 @@ EmulateInstructionMIPS64::Emulate_BGEZALC (llvm::MCInst& insn)
     else
         target = pc + 4;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips64, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips64, pc + 4))
         return false;
 
     return true;
@@ -1588,11 +1693,11 @@ EmulateInstructionMIPS64::Emulate_BLTZALC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1603,10 +1708,10 @@ EmulateInstructionMIPS64::Emulate_BLTZALC (llvm::MCInst& insn)
     else
         target = pc + 4;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips64, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips64, pc + 4))
         return false;
 
     return true;
@@ -1631,11 +1736,11 @@ EmulateInstructionMIPS64::Emulate_BGTZALC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1646,10 +1751,10 @@ EmulateInstructionMIPS64::Emulate_BGTZALC (llvm::MCInst& insn)
     else
         target = pc + 4;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips64, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips64, pc + 4))
         return false;
 
     return true;
@@ -1673,11 +1778,11 @@ EmulateInstructionMIPS64::Emulate_BEQZALC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1688,10 +1793,10 @@ EmulateInstructionMIPS64::Emulate_BEQZALC (llvm::MCInst& insn)
     else
         target = pc + 4;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips64, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips64, pc + 4))
         return false;
 
     return true;
@@ -1715,11 +1820,11 @@ EmulateInstructionMIPS64::Emulate_BNEZALC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1730,10 +1835,10 @@ EmulateInstructionMIPS64::Emulate_BNEZALC (llvm::MCInst& insn)
     else
         target = pc + 4;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips64, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips64, pc + 4))
         return false;
 
     return true;
@@ -1756,11 +1861,11 @@ EmulateInstructionMIPS64::Emulate_BGEZ (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -1771,7 +1876,7 @@ EmulateInstructionMIPS64::Emulate_BGEZ (llvm::MCInst& insn)
     else
         target = pc + 8;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -1790,7 +1895,7 @@ EmulateInstructionMIPS64::Emulate_BC (llvm::MCInst& insn)
     */
     offset = insn.getOperand(0).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
@@ -1798,7 +1903,7 @@ EmulateInstructionMIPS64::Emulate_BC (llvm::MCInst& insn)
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -1821,15 +1926,15 @@ EmulateInstructionMIPS64::Emulate_BEQC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, 0, &success);
+    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rt, 0, &success);
     if (!success)
         return false;
 
@@ -1841,7 +1946,7 @@ EmulateInstructionMIPS64::Emulate_BEQC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -1864,15 +1969,15 @@ EmulateInstructionMIPS64::Emulate_BNEC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, 0, &success);
+    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rt, 0, &success);
     if (!success)
         return false;
 
@@ -1884,7 +1989,7 @@ EmulateInstructionMIPS64::Emulate_BNEC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -1908,15 +2013,15 @@ EmulateInstructionMIPS64::Emulate_BLTC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, 0, &success);
+    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rt, 0, &success);
     if (!success)
         return false;
 
@@ -1928,7 +2033,7 @@ EmulateInstructionMIPS64::Emulate_BLTC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -1952,15 +2057,15 @@ EmulateInstructionMIPS64::Emulate_BGEC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, 0, &success);
+    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rt, 0, &success);
     if (!success)
         return false;
 
@@ -1972,7 +2077,7 @@ EmulateInstructionMIPS64::Emulate_BGEC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -1996,15 +2101,15 @@ EmulateInstructionMIPS64::Emulate_BLTUC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, 0, &success);
+    rt_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rt, 0, &success);
     if (!success)
         return false;
 
@@ -2016,7 +2121,7 @@ EmulateInstructionMIPS64::Emulate_BLTUC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2040,15 +2145,15 @@ EmulateInstructionMIPS64::Emulate_BGEUC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, 0, &success);
+    rt_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rt, 0, &success);
     if (!success)
         return false;
 
@@ -2060,7 +2165,7 @@ EmulateInstructionMIPS64::Emulate_BGEUC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2083,11 +2188,11 @@ EmulateInstructionMIPS64::Emulate_BLTZC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -2099,7 +2204,7 @@ EmulateInstructionMIPS64::Emulate_BLTZC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2122,11 +2227,11 @@ EmulateInstructionMIPS64::Emulate_BLEZC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -2138,7 +2243,7 @@ EmulateInstructionMIPS64::Emulate_BLEZC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2161,11 +2266,11 @@ EmulateInstructionMIPS64::Emulate_BGEZC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -2177,7 +2282,7 @@ EmulateInstructionMIPS64::Emulate_BGEZC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2200,11 +2305,11 @@ EmulateInstructionMIPS64::Emulate_BGTZC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -2216,7 +2321,7 @@ EmulateInstructionMIPS64::Emulate_BGTZC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2239,11 +2344,11 @@ EmulateInstructionMIPS64::Emulate_BEQZC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -2255,7 +2360,7 @@ EmulateInstructionMIPS64::Emulate_BEQZC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2278,11 +2383,11 @@ EmulateInstructionMIPS64::Emulate_BNEZC (llvm::MCInst& insn)
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
@@ -2294,7 +2399,7 @@ EmulateInstructionMIPS64::Emulate_BNEZC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2325,15 +2430,15 @@ EmulateInstructionMIPS64::Emulate_BOVC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, 0, &success);
+    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rt, 0, &success);
     if (!success)
         return false;
 
@@ -2345,7 +2450,7 @@ EmulateInstructionMIPS64::Emulate_BOVC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2369,15 +2474,15 @@ EmulateInstructionMIPS64::Emulate_BNVC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
     offset = insn.getOperand(2).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, 0, &success);
+    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rt, 0, &success);
     if (!success)
         return false;
 
@@ -2389,7 +2494,7 @@ EmulateInstructionMIPS64::Emulate_BNVC (llvm::MCInst& insn)
     Context context;
     context.type = eContextRelativeBranchImmediate;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2408,7 +2513,7 @@ EmulateInstructionMIPS64::Emulate_J (llvm::MCInst& insn)
     */
     offset = insn.getOperand(0).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
@@ -2417,7 +2522,7 @@ EmulateInstructionMIPS64::Emulate_J (llvm::MCInst& insn)
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, pc))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, pc))
         return false;
 
     return true;
@@ -2436,7 +2541,7 @@ EmulateInstructionMIPS64::Emulate_JAL (llvm::MCInst& insn)
     */
     offset = insn.getOperand(0).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
@@ -2445,10 +2550,10 @@ EmulateInstructionMIPS64::Emulate_JAL (llvm::MCInst& insn)
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips64, pc + 8))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips64, pc + 8))
         return false;
 
     return true;
@@ -2469,20 +2574,20 @@ EmulateInstructionMIPS64::Emulate_JALR (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     rs = m_reg_info->getEncodingValue (insn.getOperand(1).getReg());
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, rs_val))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, rs_val))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, pc + 8))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_zero_mips64 + rt, pc + 8))
         return false;
 
     return true;
@@ -2504,11 +2609,11 @@ EmulateInstructionMIPS64::Emulate_JIALC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, 0, &success);
+    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rt, 0, &success);
     if (!success)
         return false;
 
@@ -2516,10 +2621,10 @@ EmulateInstructionMIPS64::Emulate_JIALC (llvm::MCInst& insn)
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_ra_mips64, pc + 4))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_ra_mips64, pc + 4))
         return false;
 
     return true;
@@ -2540,7 +2645,7 @@ EmulateInstructionMIPS64::Emulate_JIC (llvm::MCInst& insn)
     rt = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
 
-    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rt, 0, &success);
+    rt_val = (int64_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rt, 0, &success);
     if (!success)
         return false;
 
@@ -2548,7 +2653,7 @@ EmulateInstructionMIPS64::Emulate_JIC (llvm::MCInst& insn)
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2567,13 +2672,13 @@ EmulateInstructionMIPS64::Emulate_JR (llvm::MCInst& insn)
     */
     rs = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
 
-    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + rs, 0, &success);
+    rs_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + rs, 0, &success);
     if (!success)
         return false;
 
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, rs_val))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, rs_val))
         return false;
 
     return true;
@@ -2596,11 +2701,11 @@ EmulateInstructionMIPS64::Emulate_BC1F (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips64, 0, &success);
+    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips64, 0, &success);
     if (!success)
         return false;
 
@@ -2614,7 +2719,7 @@ EmulateInstructionMIPS64::Emulate_BC1F (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2637,11 +2742,11 @@ EmulateInstructionMIPS64::Emulate_BC1T (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips64, 0, &success);
+    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips64, 0, &success);
     if (!success)
         return false;
 
@@ -2655,7 +2760,7 @@ EmulateInstructionMIPS64::Emulate_BC1T (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2678,11 +2783,11 @@ EmulateInstructionMIPS64::Emulate_BC1FL (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips64, 0, &success);
+    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips64, 0, &success);
     if (!success)
         return false;
 
@@ -2696,7 +2801,7 @@ EmulateInstructionMIPS64::Emulate_BC1FL (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2719,11 +2824,11 @@ EmulateInstructionMIPS64::Emulate_BC1TL (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips64, 0, &success);
+    fcsr = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips64, 0, &success);
     if (!success)
         return false;
 
@@ -2737,7 +2842,7 @@ EmulateInstructionMIPS64::Emulate_BC1TL (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2761,11 +2866,11 @@ EmulateInstructionMIPS64::Emulate_BC1EQZ (llvm::MCInst& insn)
     ft = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    ft_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + ft, 0, &success);
+    ft_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + ft, 0, &success);
     if (!success)
         return false;
 
@@ -2776,7 +2881,7 @@ EmulateInstructionMIPS64::Emulate_BC1EQZ (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2800,11 +2905,11 @@ EmulateInstructionMIPS64::Emulate_BC1NEZ (llvm::MCInst& insn)
     ft = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    ft_val = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_zero_mips64 + ft, 0, &success);
+    ft_val = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips64 + ft, 0, &success);
     if (!success)
         return false;
 
@@ -2815,7 +2920,7 @@ EmulateInstructionMIPS64::Emulate_BC1NEZ (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2839,11 +2944,11 @@ EmulateInstructionMIPS64::Emulate_BC1ANY2F (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips64, 0, &success);
+    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips64, 0, &success);
     if (!success)
         return false;
 
@@ -2858,7 +2963,7 @@ EmulateInstructionMIPS64::Emulate_BC1ANY2F (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2882,11 +2987,11 @@ EmulateInstructionMIPS64::Emulate_BC1ANY2T (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips64, 0, &success);
+    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips64, 0, &success);
     if (!success)
         return false;
 
@@ -2901,7 +3006,7 @@ EmulateInstructionMIPS64::Emulate_BC1ANY2T (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2927,11 +3032,11 @@ EmulateInstructionMIPS64::Emulate_BC1ANY4F (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips64, 0, &success);
+    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips64, 0, &success);
     if (!success)
         return false;
 
@@ -2946,7 +3051,7 @@ EmulateInstructionMIPS64::Emulate_BC1ANY4F (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
@@ -2972,11 +3077,11 @@ EmulateInstructionMIPS64::Emulate_BC1ANY4T (llvm::MCInst& insn)
     cc = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
     offset = insn.getOperand(1).getImm();
     
-    pc = ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_pc_mips64, 0, &success);
+    pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
     if (!success)
         return false;
 
-    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, gcc_dwarf_fcsr_mips64, 0, &success);
+    fcsr = (uint32_t) ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_fcsr_mips64, 0, &success);
     if (!success)
         return false;
 
@@ -2991,8 +3096,234 @@ EmulateInstructionMIPS64::Emulate_BC1ANY4T (llvm::MCInst& insn)
     
     Context context;
 
-    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, gcc_dwarf_pc_mips64, target))
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
         return false;
 
     return true;
 }
+
+bool
+EmulateInstructionMIPS64::Emulate_BNZB (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 1, true);
+}
+
+bool
+EmulateInstructionMIPS64::Emulate_BNZH (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 2, true);
+}
+
+bool
+EmulateInstructionMIPS64::Emulate_BNZW (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 4, true);
+}
+
+bool
+EmulateInstructionMIPS64::Emulate_BNZD (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 8, true);
+}
+
+bool
+EmulateInstructionMIPS64::Emulate_BZB (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 1, false);
+}
+
+bool
+EmulateInstructionMIPS64::Emulate_BZH (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 2, false);
+}
+
+bool
+EmulateInstructionMIPS64::Emulate_BZW (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 4, false);
+}
+
+bool
+EmulateInstructionMIPS64::Emulate_BZD (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_DF(insn, 8, false);
+}
+
+bool
+EmulateInstructionMIPS64::Emulate_MSA_Branch_DF (llvm::MCInst& insn, int element_byte_size, bool bnz)
+{
+    bool success = false, branch_hit = true;
+    int64_t target = 0;
+    RegisterValue reg_value;
+    uint8_t * ptr = NULL;
+
+    uint32_t wt = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
+    int64_t offset = insn.getOperand(1).getImm();
+
+    int64_t pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
+    if (!success)
+        return false;
+
+    if (ReadRegister (eRegisterKindDWARF, dwarf_w0_mips64 + wt, reg_value))
+        ptr = (uint8_t *)reg_value.GetBytes();
+    else
+        return false;
+
+    for(int i = 0; i < 16 / element_byte_size; i++)
+    {
+        switch(element_byte_size)
+        {
+            case 1:
+                if((*ptr == 0 && bnz) || (*ptr != 0 && !bnz) )
+                    branch_hit = false;
+                break;
+            case 2:
+                if((*(uint16_t *)ptr == 0 && bnz) || (*(uint16_t *)ptr != 0 && !bnz))
+                    branch_hit = false;
+                break;
+            case 4:
+                if((*(uint32_t *)ptr == 0 && bnz) || (*(uint32_t *)ptr != 0 && !bnz))
+                    branch_hit = false;
+                break;
+            case 8:
+                if((*(uint64_t *)ptr == 0 && bnz) || (*(uint64_t *)ptr != 0 && !bnz))
+                    branch_hit = false;
+                break;
+        }
+        if(!branch_hit)
+           break;
+        ptr = ptr + element_byte_size;
+    }
+
+    if(branch_hit)
+        target = pc + offset;
+    else
+        target = pc + 8;
+
+    Context context;
+    context.type = eContextRelativeBranchImmediate;
+
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
+        return false;
+
+    return true;
+}
+
+bool
+EmulateInstructionMIPS64::Emulate_BNZV (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_V (insn, true);
+}
+
+bool
+EmulateInstructionMIPS64::Emulate_BZV (llvm::MCInst& insn)
+{
+    return Emulate_MSA_Branch_V (insn, false);
+}
+
+bool
+EmulateInstructionMIPS64::Emulate_MSA_Branch_V (llvm::MCInst& insn, bool bnz)
+{
+    bool success = false;
+    int64_t target = 0;
+    llvm::APInt wr_val = llvm::APInt::getNullValue(128);
+    llvm::APInt fail_value = llvm::APInt::getMaxValue(128);
+    llvm::APInt zero_value = llvm::APInt::getNullValue(128);
+    RegisterValue reg_value;
+
+    uint32_t wt = m_reg_info->getEncodingValue (insn.getOperand(0).getReg());
+    int64_t offset = insn.getOperand(1).getImm();
+
+    int64_t pc = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_pc_mips64, 0, &success);
+    if (!success)
+        return false;
+
+    if (ReadRegister (eRegisterKindDWARF, dwarf_w0_mips64 + wt, reg_value))
+        wr_val = reg_value.GetAsUInt128(fail_value);
+    else
+        return false;
+
+    if((llvm::APInt::isSameValue(zero_value, wr_val) && !bnz) || (!llvm::APInt::isSameValue(zero_value, wr_val) && bnz))
+        target = pc + offset;
+    else
+        target = pc + 8;
+
+    Context context;
+    context.type = eContextRelativeBranchImmediate;
+
+    if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_pc_mips64, target))
+        return false;
+
+    return true;
+}
+
+bool
+EmulateInstructionMIPS64::Emulate_LDST_Imm (llvm::MCInst& insn)
+{
+    bool success = false;
+    uint32_t base;
+    int64_t imm, address;
+    Context bad_vaddr_context;
+
+    uint32_t num_operands = insn.getNumOperands();
+    base = m_reg_info->getEncodingValue (insn.getOperand(num_operands-2).getReg());
+    imm = insn.getOperand(num_operands-1).getImm();
+
+    RegisterInfo reg_info_base;
+    if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + base, reg_info_base))
+        return false;
+
+    /* read base register */
+    address = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + base, 0, &success);
+    if (!success)
+        return false;
+
+    /* destination address */
+    address = address + imm;
+
+    /* Set the bad_vaddr register with base address used in the instruction */
+    bad_vaddr_context.type = eContextInvalid;
+    WriteRegisterUnsigned (bad_vaddr_context, eRegisterKindDWARF, dwarf_bad_mips, address);
+
+    return true;
+}
+
+bool
+EmulateInstructionMIPS64::Emulate_LDST_Reg (llvm::MCInst& insn)
+{
+    bool success = false;
+    uint32_t base, index;
+    int64_t address, index_address;
+    Context bad_vaddr_context;
+
+    uint32_t num_operands = insn.getNumOperands();
+    base = m_reg_info->getEncodingValue (insn.getOperand(num_operands-2).getReg());
+    index = m_reg_info->getEncodingValue (insn.getOperand(num_operands-1).getReg());
+
+    RegisterInfo reg_info_base, reg_info_index;
+    if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + base, reg_info_base))
+        return false;
+
+    if (!GetRegisterInfo (eRegisterKindDWARF, dwarf_zero_mips + index, reg_info_index))
+        return false;
+
+    /* read base register */
+    address = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + base, 0, &success);
+    if (!success)
+        return false;
+
+    /* read index register */
+    index_address = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_zero_mips + index, 0, &success);
+    if (!success)
+        return false;
+
+    /* destination address */
+    address = address + index_address;
+
+    /* Set the bad_vaddr register with base address used in the instruction */
+    bad_vaddr_context.type = eContextInvalid;
+    WriteRegisterUnsigned (bad_vaddr_context, eRegisterKindDWARF, dwarf_bad_mips, address);
+
+    return true;
+}
diff --git a/source/Plugins/Instruction/MIPS64/EmulateInstructionMIPS64.h b/source/Plugins/Instruction/MIPS64/EmulateInstructionMIPS64.h
index faefd329a8e46..e0b20792ae1f9 100644
--- a/source/Plugins/Instruction/MIPS64/EmulateInstructionMIPS64.h
+++ b/source/Plugins/Instruction/MIPS64/EmulateInstructionMIPS64.h
@@ -1,4 +1,4 @@
-//===-- EmulateInstructionMIPS64.h ------------------------------------*- C++ -*-===//
+//===-- EmulateInstructionMIPS64.h ------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -10,6 +10,14 @@
 #ifndef EmulateInstructionMIPS64_h_
 #define EmulateInstructionMIPS64_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/Core/EmulateInstruction.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Interpreter/OptionValue.h"
+
 namespace llvm
 {
     class MCDisassembler;
@@ -19,15 +27,13 @@ namespace llvm
     class MCContext;
     class MCInstrInfo;
     class MCInst;
-}
-
-#include "lldb/Core/EmulateInstruction.h"
-#include "lldb/Core/Error.h"
-#include "lldb/Interpreter/OptionValue.h"
+} // namespace llvm
 
 class EmulateInstructionMIPS64 : public lldb_private::EmulateInstruction
 {
 public: 
+    EmulateInstructionMIPS64(const lldb_private::ArchSpec &arch);
+
     static void
     Initialize ();
 
@@ -60,57 +66,47 @@ public:
         return false;
     }
 
-    virtual lldb_private::ConstString
-    GetPluginName();
-
-    virtual lldb_private::ConstString
-    GetShortPluginName()
-    {
-        return GetPluginNameStatic();
-    }
+    lldb_private::ConstString
+    GetPluginName() override;
 
-    virtual uint32_t
-    GetPluginVersion()
+    uint32_t
+    GetPluginVersion() override
     {
         return 1;
     }
 
     bool
-    SetTargetTriple (const lldb_private::ArchSpec &arch);
+    SetTargetTriple(const lldb_private::ArchSpec &arch) override;
     
-    EmulateInstructionMIPS64 (const lldb_private::ArchSpec &arch);
-
-    virtual bool
-    SupportsEmulatingInstructionsOfType (lldb_private::InstructionType inst_type)
+    bool
+    SupportsEmulatingInstructionsOfType(lldb_private::InstructionType inst_type) override
     {
         return SupportsEmulatingInstructionsOfTypeStatic (inst_type);
     }
 
-    virtual bool 
-    ReadInstruction ();
+    bool
+    ReadInstruction() override;
     
-    virtual bool
-    EvaluateInstruction (uint32_t evaluate_options);
+    bool
+    EvaluateInstruction(uint32_t evaluate_options) override;
     
-    virtual bool
-    TestEmulation (lldb_private::Stream *out_stream, 
-                   lldb_private::ArchSpec &arch, 
-                   lldb_private::OptionValueDictionary *test_data)
+    bool
+    TestEmulation(lldb_private::Stream *out_stream,
+                  lldb_private::ArchSpec &arch,
+                  lldb_private::OptionValueDictionary *test_data) override
     {
         return false;
     }
 
-    virtual bool
-    GetRegisterInfo (lldb::RegisterKind reg_kind,
-                     uint32_t reg_num, 
-                     lldb_private::RegisterInfo &reg_info);
-
-    virtual bool
-    CreateFunctionEntryUnwind (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    GetRegisterInfo(lldb::RegisterKind reg_kind,
+                    uint32_t reg_num,
+                    lldb_private::RegisterInfo &reg_info) override;
 
+    bool
+    CreateFunctionEntryUnwind(lldb_private::UnwindPlan &unwind_plan) override;
 
 protected:
-
     typedef struct
     {
         const char *op_name;
@@ -128,13 +124,13 @@ protected:
     Emulate_SD (llvm::MCInst& insn);
 
     bool
-    Emulate_SW (llvm::MCInst& insn);
+    Emulate_LD (llvm::MCInst& insn);
 
     bool
-    Emulate_LW (llvm::MCInst& insn);
+    Emulate_LDST_Imm (llvm::MCInst& insn);
 
     bool
-    Emulate_LD (llvm::MCInst& insn);
+    Emulate_LDST_Reg (llvm::MCInst& insn);
 
     bool
     Emulate_BEQ (llvm::MCInst& insn);
@@ -302,6 +298,42 @@ protected:
     Emulate_BC1ANY4T  (llvm::MCInst& insn);
 
     bool
+    Emulate_BNZB  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BNZH  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BNZW  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BNZD  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BZB  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BZH  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BZW  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BZD  (llvm::MCInst& insn);
+
+    bool
+    Emulate_MSA_Branch_DF (llvm::MCInst& insn, int element_byte_size, bool bnz);
+
+    bool
+    Emulate_BNZV  (llvm::MCInst& insn);
+
+    bool
+    Emulate_BZV  (llvm::MCInst& insn);
+
+    bool
+    Emulate_MSA_Branch_V (llvm::MCInst& insn, bool bnz);
+
+    bool
     nonvolatile_reg_p (uint64_t regnum);
 
     const char *
@@ -316,4 +348,4 @@ private:
     std::unique_ptr<llvm::MCInstrInfo>      m_insn_info;
 };
 
-#endif  // EmulateInstructionMIPS64_h_
+#endif // EmulateInstructionMIPS64_h_
diff --git a/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.cpp b/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.cpp
index 9b72ceb71bd01..c2f1f2e95c838 100644
--- a/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.cpp
+++ b/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.cpp
@@ -66,9 +66,11 @@ AddressSanitizerRuntime::GetTypeStatic()
 AddressSanitizerRuntime::AddressSanitizerRuntime(const ProcessSP &process_sp) :
     m_is_active(false),
     m_runtime_module(),
-    m_process(process_sp),
+    m_process_wp(),
     m_breakpoint_id(0)
 {
+    if (process_sp)
+        m_process_wp = process_sp;
 }
 
 AddressSanitizerRuntime::~AddressSanitizerRuntime()
@@ -78,14 +80,11 @@ AddressSanitizerRuntime::~AddressSanitizerRuntime()
 
 bool ModuleContainsASanRuntime(Module * module)
 {
-    SymbolContextList sc_list;
-    const bool include_symbols = true;
-    const bool append = true;
-    const bool include_inlines = true;
-    
-    size_t num_matches = module->FindFunctions(ConstString("__asan_get_alloc_stack"), NULL, eFunctionNameTypeAuto, include_symbols, include_inlines, append, sc_list);
-    
-    return num_matches > 0;
+    const Symbol* symbol = module->FindFirstSymbolWithNameAndType(
+            ConstString("__asan_get_alloc_stack"),
+            lldb::eSymbolTypeAny);
+
+    return symbol != nullptr;
 }
 
 void
@@ -164,7 +163,11 @@ t
 StructuredData::ObjectSP
 AddressSanitizerRuntime::RetrieveReportData()
 {
-    ThreadSP thread_sp = m_process->GetThreadList().GetSelectedThread();
+    ProcessSP process_sp = GetProcessSP();
+    if (!process_sp)
+        return StructuredData::ObjectSP();
+
+    ThreadSP thread_sp = process_sp->GetThreadList().GetSelectedThread();
     StackFrameSP frame_sp = thread_sp->GetSelectedFrame();
     
     if (!frame_sp)
@@ -178,7 +181,7 @@ AddressSanitizerRuntime::RetrieveReportData()
     options.SetTimeoutUsec(RETRIEVE_REPORT_DATA_FUNCTION_TIMEOUT_USEC);
     
     ValueObjectSP return_value_sp;
-    if (m_process->GetTarget().EvaluateExpression(address_sanitizer_retrieve_report_data_command, frame_sp.get(), return_value_sp, options) != eExpressionCompleted)
+    if (process_sp->GetTarget().EvaluateExpression(address_sanitizer_retrieve_report_data_command, frame_sp.get(), return_value_sp, options) != eExpressionCompleted)
         return StructuredData::ObjectSP();
     
     int present = return_value_sp->GetValueForExpressionPath(".present")->GetValueAsUnsigned(0);
@@ -196,7 +199,7 @@ AddressSanitizerRuntime::RetrieveReportData()
     addr_t description_ptr = return_value_sp->GetValueForExpressionPath(".description")->GetValueAsUnsigned(0);
     std::string description;
     Error error;
-    m_process->ReadCStringFromMemory(description_ptr, description, error);
+    process_sp->ReadCStringFromMemory(description_ptr, description, error);
     
     StructuredData::Dictionary *dict = new StructuredData::Dictionary();
     dict->AddStringItem("instrumentation_class", "AddressSanitizer");
@@ -252,27 +255,31 @@ AddressSanitizerRuntime::NotifyBreakpointHit(void *baton, StoppointCallbackConte
     assert (baton && "null baton");
     if (!baton)
         return false;
-    
+
     AddressSanitizerRuntime *const instance = static_cast<AddressSanitizerRuntime*>(baton);
-    
+
     StructuredData::ObjectSP report = instance->RetrieveReportData();
     std::string description;
     if (report) {
         description = instance->FormatDescription(report);
     }
-    ThreadSP thread = context->exe_ctx_ref.GetThreadSP();
-    thread->SetStopInfo(InstrumentationRuntimeStopInfo::CreateStopReasonWithInstrumentationData(*thread, description.c_str(), report));
-
-    if (instance->m_process)
+    ProcessSP process_sp = instance->GetProcessSP();
+    // Make sure this is the right process
+    if (process_sp && process_sp == context->exe_ctx_ref.GetProcessSP())
     {
-        StreamFileSP stream_sp (instance->m_process->GetTarget().GetDebugger().GetOutputFile());
+        ThreadSP thread_sp = context->exe_ctx_ref.GetThreadSP();
+        if (thread_sp)
+            thread_sp->SetStopInfo(InstrumentationRuntimeStopInfo::CreateStopReasonWithInstrumentationData(*thread_sp, description.c_str(), report));
+        
+        StreamFileSP stream_sp (process_sp->GetTarget().GetDebugger().GetOutputFile());
         if (stream_sp)
         {
             stream_sp->Printf ("AddressSanitizer report breakpoint hit. Use 'thread info -s' to get extended information about the report.\n");
         }
+        return true;    // Return true to stop the target
     }
-    // Return true to stop the target, false to just let the target run.
-    return true;
+    else
+        return false;   // Let target run
 }
 
 void
@@ -281,6 +288,10 @@ AddressSanitizerRuntime::Activate()
     if (m_is_active)
         return;
 
+    ProcessSP process_sp = GetProcessSP();
+    if (!process_sp)
+        return;
+
     ConstString symbol_name ("__asan::AsanDie()");
     const Symbol *symbol = m_runtime_module->FindFirstSymbolWithNameAndType (symbol_name, eSymbolTypeCode);
     
@@ -290,7 +301,7 @@ AddressSanitizerRuntime::Activate()
     if (!symbol->ValueIsAddress() || !symbol->GetAddressRef().IsValid())
         return;
     
-    Target &target = m_process->GetTarget();
+    Target &target = process_sp->GetTarget();
     addr_t symbol_address = symbol->GetAddressRef().GetOpcodeLoadAddress(&target);
     
     if (symbol_address == LLDB_INVALID_ADDRESS)
@@ -298,18 +309,15 @@ AddressSanitizerRuntime::Activate()
     
     bool internal = true;
     bool hardware = false;
-    Breakpoint *breakpoint = m_process->GetTarget().CreateBreakpoint(symbol_address, internal, hardware).get();
+    Breakpoint *breakpoint = process_sp->GetTarget().CreateBreakpoint(symbol_address, internal, hardware).get();
     breakpoint->SetCallback (AddressSanitizerRuntime::NotifyBreakpointHit, this, true);
     breakpoint->SetBreakpointKind ("address-sanitizer-report");
     m_breakpoint_id = breakpoint->GetID();
     
-    if (m_process)
+    StreamFileSP stream_sp (process_sp->GetTarget().GetDebugger().GetOutputFile());
+    if (stream_sp)
     {
-        StreamFileSP stream_sp (m_process->GetTarget().GetDebugger().GetOutputFile());
-        if (stream_sp)
-        {
-                stream_sp->Printf ("AddressSanitizer debugger support is active. Memory error breakpoint has been installed and you can now use the 'memory history' command.\n");
-        }
+            stream_sp->Printf ("AddressSanitizer debugger support is active. Memory error breakpoint has been installed and you can now use the 'memory history' command.\n");
     }
 
     m_is_active = true;
@@ -320,8 +328,12 @@ AddressSanitizerRuntime::Deactivate()
 {
     if (m_breakpoint_id != LLDB_INVALID_BREAK_ID)
     {
-        m_process->GetTarget().RemoveBreakpointByID(m_breakpoint_id);
-        m_breakpoint_id = LLDB_INVALID_BREAK_ID;
+        ProcessSP process_sp = GetProcessSP();
+        if (process_sp)
+        {
+            process_sp->GetTarget().RemoveBreakpointByID(m_breakpoint_id);
+            m_breakpoint_id = LLDB_INVALID_BREAK_ID;
+        }
     }
     m_is_active = false;
 }
diff --git a/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.h b/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.h
index 69c134cbedaff..fe12ab847e76d 100644
--- a/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.h
+++ b/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.h
@@ -10,6 +10,10 @@
 #ifndef liblldb_AddressSanitizerRuntime_h_
 #define liblldb_AddressSanitizerRuntime_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-private.h"
 #include "lldb/Target/ABI.h"
 #include "lldb/Target/InstrumentationRuntime.h"
@@ -21,7 +25,8 @@ namespace lldb_private {
 class AddressSanitizerRuntime : public lldb_private::InstrumentationRuntime
 {
 public:
-    
+    ~AddressSanitizerRuntime() override;
+
     static lldb::InstrumentationRuntimeSP
     CreateInstance (const lldb::ProcessSP &process_sp);
     
@@ -36,29 +41,37 @@ public:
     
     static lldb::InstrumentationRuntimeType
     GetTypeStatic();
-    
-    virtual
-    ~AddressSanitizerRuntime();
-    
-    virtual lldb_private::ConstString
-    GetPluginName() { return GetPluginNameStatic(); }
+
+    lldb_private::ConstString
+    GetPluginName() override
+    { 
+        return GetPluginNameStatic();
+    }
     
     virtual lldb::InstrumentationRuntimeType
     GetType() { return GetTypeStatic(); }
     
-    virtual uint32_t
-    GetPluginVersion() { return 1; }
+    uint32_t
+    GetPluginVersion() override
+    {
+        return 1;
+    }
     
-    virtual void
-    ModulesDidLoad(lldb_private::ModuleList &module_list);
+    void
+    ModulesDidLoad(lldb_private::ModuleList &module_list) override;
     
-    virtual bool
-    IsActive();
+    bool
+    IsActive() override;
     
 private:
-    
     AddressSanitizerRuntime(const lldb::ProcessSP &process_sp);
-    
+
+    lldb::ProcessSP
+    GetProcessSP ()
+    {
+        return m_process_wp.lock();
+    }
+
     void
     Activate();
     
@@ -76,11 +89,10 @@ private:
     
     bool m_is_active;
     lldb::ModuleSP m_runtime_module;
-    lldb::ProcessSP m_process;
+    lldb::ProcessWP m_process_wp;
     lldb::user_id_t m_breakpoint_id;
-
 };
     
 } // namespace lldb_private
 
-#endif  // liblldb_InstrumentationRuntime_h_
+#endif // liblldb_AddressSanitizerRuntime_h_
diff --git a/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp b/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp
index 8e454e712fe80..143e447940576 100644
--- a/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp
+++ b/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp
@@ -16,6 +16,7 @@
 #include "lldb/Core/ModuleSpec.h"
 #include "lldb/Core/Section.h"
 #include "lldb/Core/StreamString.h"
+#include "lldb/Interpreter/OptionValueProperties.h"
 #include "lldb/Symbol/SymbolContext.h"
 #include "lldb/Symbol/SymbolVendor.h"
 #include "lldb/Target/Process.h"
@@ -27,6 +28,58 @@
 using namespace lldb;
 using namespace lldb_private;
 
+namespace {
+
+    PropertyDefinition
+    g_properties[] =
+    {
+        { "enable-jit-breakpoint", OptionValue::eTypeBoolean, true,  true , nullptr, nullptr, "Enable breakpoint on __jit_debug_register_code." },
+        {  nullptr               , OptionValue::eTypeInvalid, false, 0,     nullptr, nullptr, nullptr }
+    };
+
+    enum
+    {
+        ePropertyEnableJITBreakpoint
+    };
+
+
+    class PluginProperties : public Properties
+    {
+    public:
+        static ConstString
+        GetSettingName()
+        {
+            return JITLoaderGDB::GetPluginNameStatic();
+        }
+
+        PluginProperties()
+        {
+            m_collection_sp.reset (new OptionValueProperties(GetSettingName()));
+            m_collection_sp->Initialize(g_properties);
+        }
+
+        bool
+        GetEnableJITBreakpoint() const
+        {
+            return m_collection_sp->GetPropertyAtIndexAsBoolean(
+                nullptr,
+                ePropertyEnableJITBreakpoint,
+                g_properties[ePropertyEnableJITBreakpoint].default_uint_value != 0);
+        }
+
+    };
+
+    typedef std::shared_ptr<PluginProperties> JITLoaderGDBPropertiesSP;
+
+    static const JITLoaderGDBPropertiesSP&
+    GetGlobalPluginProperties()
+    {
+        static const auto g_settings_sp(std::make_shared<PluginProperties>());
+        return g_settings_sp;
+    }
+
+}  // anonymous namespace end
+
 //------------------------------------------------------------------
 // Debug Interface Structures
 //------------------------------------------------------------------
@@ -37,7 +90,6 @@ typedef enum
     JIT_UNREGISTER_FN
 } jit_actions_t;
 
-#pragma pack(push, 4)
 template <typename ptr_t>
 struct jit_code_entry
 {
@@ -54,7 +106,6 @@ struct jit_descriptor
     ptr_t    relevant_entry; // pointer
     ptr_t    first_entry; // pointer
 };
-#pragma pack(pop)
 
 JITLoaderGDB::JITLoaderGDB (lldb_private::Process *process) :
     JITLoader(process),
@@ -70,6 +121,19 @@ JITLoaderGDB::~JITLoaderGDB ()
         m_process->GetTarget().RemoveBreakpointByID (m_jit_break_id);
 }
 
+void
+JITLoaderGDB::DebuggerInitialize(Debugger &debugger)
+{
+    if (!PluginManager::GetSettingForJITLoaderPlugin(debugger, PluginProperties::GetSettingName()))
+    {
+        const bool is_global_setting = true;
+        PluginManager::CreateSettingForJITLoaderPlugin(debugger,
+                                                       GetGlobalPluginProperties()->GetValueProperties(),
+                                                       ConstString ("Properties for the JIT LoaderGDB plug-in."),
+                                                       is_global_setting);
+    }
+}
+
 void JITLoaderGDB::DidAttach()
 {
     Target &target = m_process->GetTarget();
@@ -88,7 +152,7 @@ void
 JITLoaderGDB::ModulesDidLoad(ModuleList &module_list)
 {
     if (!DidSetJITBreakpoint() && m_process->IsAlive())
-	SetJITBreakpoint(module_list);
+        SetJITBreakpoint(module_list);
 }
 
 //------------------------------------------------------------------
@@ -97,11 +161,13 @@ JITLoaderGDB::ModulesDidLoad(ModuleList &module_list)
 void
 JITLoaderGDB::SetJITBreakpoint(lldb_private::ModuleList &module_list)
 {
-    Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_JIT_LOADER));
+    if (!GetGlobalPluginProperties()->GetEnableJITBreakpoint())
+        return;
 
     if ( DidSetJITBreakpoint() )
         return;
 
+    Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_JIT_LOADER));
     if (log)
         log->Printf("JITLoaderGDB::%s looking for JIT register hook",
                     __FUNCTION__);
@@ -407,7 +473,8 @@ JITLoaderGDB::Initialize()
 {
     PluginManager::RegisterPlugin (GetPluginNameStatic(),
                                    GetPluginDescriptionStatic(),
-                                   CreateInstance);
+                                   CreateInstance,
+                                   DebuggerInitialize);
 }
 
 void
diff --git a/source/Plugins/JITLoader/GDB/JITLoaderGDB.h b/source/Plugins/JITLoader/GDB/JITLoaderGDB.h
index bfa1721d3349c..10bd989c328f6 100644
--- a/source/Plugins/JITLoader/GDB/JITLoaderGDB.h
+++ b/source/Plugins/JITLoader/GDB/JITLoaderGDB.h
@@ -13,15 +13,19 @@
 // C Includes
 // C++ Includes
 #include <map>
-#include <vector>
-#include <string>
 
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Target/JITLoader.h"
 #include "lldb/Target/Process.h"
 
 class JITLoaderGDB : public lldb_private::JITLoader
 {
 public:
+    JITLoaderGDB(lldb_private::Process *process);
+
+    ~JITLoaderGDB() override;
+
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
@@ -40,31 +44,29 @@ public:
     static lldb::JITLoaderSP
     CreateInstance (lldb_private::Process *process, bool force);
 
-    JITLoaderGDB (lldb_private::Process *process);
-
-    virtual
-    ~JITLoaderGDB ();
+    static void
+    DebuggerInitialize(lldb_private::Debugger &debugger);
 
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
 
-    virtual uint32_t
-    GetPluginVersion();
+    uint32_t
+    GetPluginVersion() override;
 
     //------------------------------------------------------------------
     // JITLoader interface
     //------------------------------------------------------------------
-    virtual void
-    DidAttach ();
+    void
+    DidAttach() override;
 
-    virtual void
-    DidLaunch ();
+    void
+    DidLaunch() override;
 
-    virtual void
-    ModulesDidLoad (lldb_private::ModuleList &module_list);
+    void
+    ModulesDidLoad(lldb_private::ModuleList &module_list) override;
 
 private:
     lldb::addr_t
@@ -105,4 +107,4 @@ private:
 
 };
 
-#endif
+#endif // liblldb_JITLoaderGDB_h_
diff --git a/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp b/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
new file mode 100644
index 0000000000000..a554aa57d58e5
--- /dev/null
+++ b/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
@@ -0,0 +1,792 @@
+//===-- CPlusPlusLanguage.cpp --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "CPlusPlusLanguage.h"
+
+
+#include "llvm/ADT/StringRef.h"
+
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Core/RegularExpression.h"
+#include "lldb/Core/UniqueCStringMap.h"
+#include "lldb/DataFormatters/CXXFunctionPointer.h"
+#include "lldb/DataFormatters/DataVisualization.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/DataFormatters/VectorType.h"
+
+#include "CxxStringTypes.h"
+#include "LibCxx.h"
+#include "LibStdcpp.h"
+
+#include <cstring>
+#include <cctype>
+#include <functional>
+#include <mutex>
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+void
+CPlusPlusLanguage::Initialize()
+{
+    PluginManager::RegisterPlugin (GetPluginNameStatic(),
+                                   "C++ Language",
+                                   CreateInstance);
+}
+
+void
+CPlusPlusLanguage::Terminate()
+{
+    PluginManager::UnregisterPlugin (CreateInstance);
+}
+
+lldb_private::ConstString
+CPlusPlusLanguage::GetPluginNameStatic()
+{
+    static ConstString g_name("cplusplus");
+    return g_name;
+}
+
+
+//------------------------------------------------------------------
+// PluginInterface protocol
+//------------------------------------------------------------------
+lldb_private::ConstString
+CPlusPlusLanguage::GetPluginName()
+{
+    return GetPluginNameStatic();
+}
+
+uint32_t
+CPlusPlusLanguage::GetPluginVersion()
+{
+    return 1;
+}
+
+//------------------------------------------------------------------
+// Static Functions
+//------------------------------------------------------------------
+Language *
+CPlusPlusLanguage::CreateInstance (lldb::LanguageType language)
+{
+    if (Language::LanguageIsCPlusPlus(language))
+        return new CPlusPlusLanguage();
+    return nullptr;
+}
+
+void
+CPlusPlusLanguage::MethodName::Clear()
+{
+    m_full.Clear();
+    m_basename = llvm::StringRef();
+    m_context = llvm::StringRef();
+    m_arguments = llvm::StringRef();
+    m_qualifiers = llvm::StringRef();
+    m_type = eTypeInvalid;
+    m_parsed = false;
+    m_parse_error = false;
+}
+
+bool
+ReverseFindMatchingChars (const llvm::StringRef &s,
+                          const llvm::StringRef &left_right_chars,
+                          size_t &left_pos,
+                          size_t &right_pos,
+                          size_t pos = llvm::StringRef::npos)
+{
+    assert (left_right_chars.size() == 2);
+    left_pos = llvm::StringRef::npos;
+    const char left_char = left_right_chars[0];
+    const char right_char = left_right_chars[1];
+    pos = s.find_last_of(left_right_chars, pos);
+    if (pos == llvm::StringRef::npos || s[pos] == left_char)
+        return false;
+    right_pos = pos;
+    uint32_t depth = 1;
+    while (pos > 0 && depth > 0)
+    {
+        pos = s.find_last_of(left_right_chars, pos);
+        if (pos == llvm::StringRef::npos)
+            return false;
+        if (s[pos] == left_char)
+        {
+            if (--depth == 0)
+            {
+                left_pos = pos;
+                return left_pos < right_pos;
+            }            
+        }
+        else if (s[pos] == right_char)
+        {
+            ++depth;
+        }
+    }
+    return false;
+}
+
+static bool
+IsValidBasename(const llvm::StringRef& basename)
+{
+    // Check that the basename matches with the following regular expression or is an operator name:
+    // "^~?([A-Za-z_][A-Za-z_0-9]*)(<.*>)?$"
+    // We are using a hand written implementation because it is significantly more efficient then
+    // using the general purpose regular expression library.
+    size_t idx = 0;
+    if (basename.size() > 0 && basename[0] == '~')
+        idx = 1;
+
+    if (basename.size() <= idx)
+        return false; // Empty string or "~"
+
+    if (!std::isalpha(basename[idx]) && basename[idx] != '_')
+        return false; // First charater (after removing the possible '~'') isn't in [A-Za-z_]
+
+    // Read all characters matching [A-Za-z_0-9]
+    ++idx;
+    while (idx < basename.size())
+    {
+        if (!std::isalnum(basename[idx]) && basename[idx] != '_')
+            break;
+        ++idx;
+    }
+
+    // We processed all characters. It is a vaild basename.
+    if (idx == basename.size())
+        return true;
+
+    // Check for basename with template arguments
+    // TODO: Improve the quality of the validation with validating the template arguments
+    if (basename[idx] == '<' && basename.back() == '>')
+        return true;
+
+    // Check if the basename is a vaild C++ operator name
+    if (!basename.startswith("operator"))
+        return false;
+
+    static RegularExpression g_operator_regex("^(operator)( ?)([A-Za-z_][A-Za-z_0-9]*|\\(\\)|\\[\\]|[\\^<>=!\\/*+-]+)(<.*>)?(\\[\\])?$");
+    std::string basename_str(basename.str());
+    return g_operator_regex.Execute(basename_str.c_str(), nullptr);
+}
+
+void
+CPlusPlusLanguage::MethodName::Parse()
+{
+    if (!m_parsed && m_full)
+    {
+//        ConstString mangled;
+//        m_full.GetMangledCounterpart(mangled);
+//        printf ("\n   parsing = '%s'\n", m_full.GetCString());
+//        if (mangled)
+//            printf ("   mangled = '%s'\n", mangled.GetCString());
+        m_parse_error = false;
+        m_parsed = true;
+        llvm::StringRef full (m_full.GetCString());
+        
+        size_t arg_start, arg_end;
+        llvm::StringRef parens("()", 2);
+        if (ReverseFindMatchingChars (full, parens, arg_start, arg_end))
+        {
+            m_arguments = full.substr(arg_start, arg_end - arg_start + 1);
+            if (arg_end + 1 < full.size())
+                m_qualifiers = full.substr(arg_end + 1);
+            if (arg_start > 0)
+            {
+                size_t basename_end = arg_start;
+                size_t context_start = 0;
+                size_t context_end = llvm::StringRef::npos;
+                if (basename_end > 0 && full[basename_end-1] == '>')
+                {
+                    // TODO: handle template junk...
+                    // Templated function
+                    size_t template_start, template_end;
+                    llvm::StringRef lt_gt("<>", 2);
+                    if (ReverseFindMatchingChars (full, lt_gt, template_start, template_end, basename_end))
+                    {
+                        // Check for templated functions that include return type like: 'void foo<Int>()'
+                        context_start = full.rfind(' ', template_start);
+                        if (context_start == llvm::StringRef::npos)
+                            context_start = 0;
+
+                        context_end = full.rfind(':', template_start);
+                        if (context_end == llvm::StringRef::npos || context_end < context_start)
+                            context_end = context_start;
+                    }
+                    else
+                    {
+                        context_end = full.rfind(':', basename_end);
+                    }
+                }
+                else if (context_end == llvm::StringRef::npos)
+                {
+                    context_end = full.rfind(':', basename_end);
+                }
+
+                if (context_end == llvm::StringRef::npos)
+                    m_basename = full.substr(0, basename_end);
+                else
+                {
+                    if (context_start < context_end)
+                        m_context = full.substr(context_start, context_end - 1);
+                    const size_t basename_begin = context_end + 1;
+                    m_basename = full.substr(basename_begin, basename_end - basename_begin);
+                }
+                m_type = eTypeUnknownMethod;
+            }
+            else
+            {
+                m_parse_error = true;
+                return;
+            }
+
+            if (!IsValidBasename(m_basename))
+            {
+                // The C++ basename doesn't match our regular expressions so this can't
+                // be a valid C++ method, clear everything out and indicate an error
+                m_context = llvm::StringRef();
+                m_basename = llvm::StringRef();
+                m_arguments = llvm::StringRef();
+                m_qualifiers = llvm::StringRef();
+                m_parse_error = true;
+            }
+        }
+        else
+        {
+            m_parse_error = true;
+        }
+    }
+}
+
+llvm::StringRef
+CPlusPlusLanguage::MethodName::GetBasename ()
+{
+    if (!m_parsed)
+        Parse();
+    return m_basename;
+}
+
+llvm::StringRef
+CPlusPlusLanguage::MethodName::GetContext ()
+{
+    if (!m_parsed)
+        Parse();
+    return m_context;
+}
+
+llvm::StringRef
+CPlusPlusLanguage::MethodName::GetArguments ()
+{
+    if (!m_parsed)
+        Parse();
+    return m_arguments;
+}
+
+llvm::StringRef
+CPlusPlusLanguage::MethodName::GetQualifiers ()
+{
+    if (!m_parsed)
+        Parse();
+    return m_qualifiers;
+}
+
+bool
+CPlusPlusLanguage::IsCPPMangledName (const char *name)
+{
+    // FIXME, we should really run through all the known C++ Language plugins and ask each one if
+    // this is a C++ mangled name, but we can put that off till there is actually more than one
+    // we care about.
+    
+    if (name && name[0] == '_' && name[1] == 'Z')
+        return true;
+    else
+        return false;
+}
+
+bool
+CPlusPlusLanguage::ExtractContextAndIdentifier (const char *name, llvm::StringRef &context, llvm::StringRef &identifier)
+{
+    static RegularExpression g_basename_regex("^(([A-Za-z_][A-Za-z_0-9]*::)*)([A-Za-z_][A-Za-z_0-9]*)$");
+    RegularExpression::Match match(4);
+    if (g_basename_regex.Execute (name, &match))
+    {
+        match.GetMatchAtIndex(name, 1, context);
+        match.GetMatchAtIndex(name, 3, identifier);
+        return true;
+    }
+    return false;
+}
+
+class CPPRuntimeEquivalents
+{
+public:
+    CPPRuntimeEquivalents ()
+    {
+        
+        m_impl.Append(ConstString("std::basic_string<char, std::char_traits<char>, std::allocator<char> >").AsCString(), ConstString("basic_string<char>"));
+
+        // these two (with a prefixed std::) occur when c++stdlib string class occurs as a template argument in some STL container
+        m_impl.Append(ConstString("std::basic_string<char, std::char_traits<char>, std::allocator<char> >").AsCString(), ConstString("std::basic_string<char>"));
+        
+        m_impl.Sort();
+    }
+    
+    void
+    Add (ConstString& type_name,
+         ConstString& type_equivalent)
+    {
+        m_impl.Insert(type_name.AsCString(), type_equivalent);
+    }
+    
+    uint32_t
+    FindExactMatches (ConstString& type_name,
+                      std::vector<ConstString>& equivalents)
+    {
+        
+        uint32_t count = 0;
+
+        for (ImplData match = m_impl.FindFirstValueForName(type_name.AsCString());
+             match != NULL;
+             match = m_impl.FindNextValueForName(match))
+        {
+            equivalents.push_back(match->value);
+            count++;
+        }
+
+        return count;        
+    }
+    
+    // partial matches can occur when a name with equivalents is a template argument.
+    // e.g. we may have "class Foo" be a match for "struct Bar". if we have a typename
+    // such as "class Templatized<class Foo, Anything>" we want this to be replaced with
+    // "class Templatized<struct Bar, Anything>". Since partial matching is time consuming
+    // once we get a partial match, we add it to the exact matches list for faster retrieval
+    uint32_t
+    FindPartialMatches (ConstString& type_name,
+                        std::vector<ConstString>& equivalents)
+    {
+        
+        uint32_t count = 0;
+        
+        const char* type_name_cstr = type_name.AsCString();
+        
+        size_t items_count = m_impl.GetSize();
+        
+        for (size_t item = 0; item < items_count; item++)
+        {
+            const char* key_cstr = m_impl.GetCStringAtIndex(item);
+            if ( strstr(type_name_cstr,key_cstr) )
+            {
+                count += AppendReplacements(type_name_cstr,
+                                            key_cstr,
+                                            equivalents);
+            }
+        }
+        
+        return count;
+        
+    }
+    
+private:
+    
+    std::string& replace (std::string& target,
+                          std::string& pattern,
+                          std::string& with)
+    {
+        size_t pos;
+        size_t pattern_len = pattern.size();
+        
+        while ( (pos = target.find(pattern)) != std::string::npos )
+            target.replace(pos, pattern_len, with);
+        
+        return target;
+    }
+    
+    uint32_t
+    AppendReplacements (const char* original,
+                        const char *matching_key,
+                        std::vector<ConstString>& equivalents)
+    {
+        
+        std::string matching_key_str(matching_key);
+        ConstString original_const(original);
+        
+        uint32_t count = 0;
+        
+        for (ImplData match = m_impl.FindFirstValueForName(matching_key);
+             match != NULL;
+             match = m_impl.FindNextValueForName(match))
+        {
+            std::string target(original);
+            std::string equiv_class(match->value.AsCString());
+            
+            replace (target, matching_key_str, equiv_class);
+            
+            ConstString target_const(target.c_str());
+
+// you will most probably want to leave this off since it might make this map grow indefinitely
+#ifdef ENABLE_CPP_EQUIVALENTS_MAP_TO_GROW
+            Add(original_const, target_const);
+#endif
+            equivalents.push_back(target_const);
+            
+            count++;
+        }
+        
+        return count;
+    }
+    
+    typedef UniqueCStringMap<ConstString> Impl;
+    typedef const Impl::Entry* ImplData;
+    Impl m_impl;
+};
+
+static CPPRuntimeEquivalents&
+GetEquivalentsMap ()
+{
+    static CPPRuntimeEquivalents g_equivalents_map;
+    return g_equivalents_map;
+}
+
+
+uint32_t
+CPlusPlusLanguage::FindEquivalentNames(ConstString type_name, std::vector<ConstString>& equivalents)
+{
+    uint32_t count = GetEquivalentsMap().FindExactMatches(type_name, equivalents);
+
+    bool might_have_partials= 
+        ( count == 0 )  // if we have a full name match just use it
+        && (strchr(type_name.AsCString(), '<') != NULL  // we should only have partial matches when templates are involved, check that we have
+            && strchr(type_name.AsCString(), '>') != NULL); // angle brackets in the type_name before trying to scan for partial matches
+    
+    if ( might_have_partials )
+        count = GetEquivalentsMap().FindPartialMatches(type_name, equivalents);
+    
+    return count;
+}
+
+static void
+LoadLibCxxFormatters (lldb::TypeCategoryImplSP cpp_category_sp)
+{
+    if (!cpp_category_sp)
+        return;
+    
+    TypeSummaryImpl::Flags stl_summary_flags;
+    stl_summary_flags.SetCascades(true)
+    .SetSkipPointers(false)
+    .SetSkipReferences(false)
+    .SetDontShowChildren(true)
+    .SetDontShowValue(true)
+    .SetShowMembersOneLiner(false)
+    .SetHideItemNames(false);
+    
+#ifndef LLDB_DISABLE_PYTHON
+    lldb::TypeSummaryImplSP std_string_summary_sp(new CXXFunctionSummaryFormat(stl_summary_flags, lldb_private::formatters::LibcxxStringSummaryProvider, "std::string summary provider"));
+    lldb::TypeSummaryImplSP std_wstring_summary_sp(new CXXFunctionSummaryFormat(stl_summary_flags, lldb_private::formatters::LibcxxWStringSummaryProvider, "std::wstring summary provider"));
+    
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::__1::string"),
+                                                         std_string_summary_sp);
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >"),
+                                                         std_string_summary_sp);
+    
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::__1::wstring"),
+                                                         std_wstring_summary_sp);
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> >"),
+                                                         std_wstring_summary_sp);
+    
+    SyntheticChildren::Flags stl_synth_flags;
+    stl_synth_flags.SetCascades(true).SetSkipPointers(false).SetSkipReferences(false);
+    
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxStdVectorSyntheticFrontEndCreator, "libc++ std::vector synthetic children", ConstString("^std::__1::vector<.+>(( )?&)?$"), stl_synth_flags, true);
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxStdListSyntheticFrontEndCreator, "libc++ std::list synthetic children", ConstString("^std::__1::list<.+>(( )?&)?$"), stl_synth_flags, true);
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, "libc++ std::map synthetic children", ConstString("^std::__1::map<.+> >(( )?&)?$"), stl_synth_flags, true);
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEndCreator, "libc++ std::vector<bool> synthetic children", ConstString("std::__1::vector<std::__1::allocator<bool> >"), stl_synth_flags);
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEndCreator, "libc++ std::vector<bool> synthetic children", ConstString("std::__1::vector<bool, std::__1::allocator<bool> >"), stl_synth_flags);
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, "libc++ std::set synthetic children", ConstString("^std::__1::set<.+> >(( )?&)?$"), stl_synth_flags, true);
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, "libc++ std::multiset synthetic children", ConstString("^std::__1::multiset<.+> >(( )?&)?$"), stl_synth_flags, true);
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, "libc++ std::multimap synthetic children", ConstString("^std::__1::multimap<.+> >(( )?&)?$"), stl_synth_flags, true);
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEndCreator, "libc++ std::unordered containers synthetic children", ConstString("^(std::__1::)unordered_(multi)?(map|set)<.+> >$"), stl_synth_flags, true);
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxInitializerListSyntheticFrontEndCreator, "libc++ std::initializer_list synthetic children", ConstString("^std::initializer_list<.+>(( )?&)?$"), stl_synth_flags, true);
+    
+    cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(RegularExpressionSP(new RegularExpression("^(std::__1::)deque<.+>(( )?&)?$")),
+                                                               SyntheticChildrenSP(new ScriptedSyntheticChildren(stl_synth_flags,
+                                                                                                                 "lldb.formatters.cpp.libcxx.stddeque_SynthProvider")));
+    
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEndCreator, "shared_ptr synthetic children", ConstString("^(std::__1::)shared_ptr<.+>(( )?&)?$"), stl_synth_flags, true);
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEndCreator, "weak_ptr synthetic children", ConstString("^(std::__1::)weak_ptr<.+>(( )?&)?$"), stl_synth_flags, true);
+    
+    stl_summary_flags.SetDontShowChildren(false);stl_summary_flags.SetSkipPointers(false);
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEndCreator, "libc++ std::vector<bool> synthetic children", ConstString("std::__1::vector<bool, std::__1::allocator<bool> >"), stl_synth_flags);
+    
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::vector summary provider", ConstString("^std::__1::vector<.+>(( )?&)?$"), stl_summary_flags, true);
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::list summary provider", ConstString("^std::__1::list<.+>(( )?&)?$"), stl_summary_flags, true);
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::map summary provider", ConstString("^std::__1::map<.+>(( )?&)?$"), stl_summary_flags, true);
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::deque summary provider", ConstString("^std::__1::deque<.+>(( )?&)?$"), stl_summary_flags, true);
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::vector<bool> summary provider", ConstString("std::__1::vector<std::__1::allocator<bool> >"), stl_summary_flags);
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::vector<bool> summary provider", ConstString("std::__1::vector<bool, std::__1::allocator<bool> >"), stl_summary_flags);
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::set summary provider", ConstString("^std::__1::set<.+>(( )?&)?$"), stl_summary_flags, true);
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::multiset summary provider", ConstString("^std::__1::multiset<.+>(( )?&)?$"), stl_summary_flags, true);
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::multimap summary provider", ConstString("^std::__1::multimap<.+>(( )?&)?$"), stl_summary_flags, true);
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::unordered containers summary provider", ConstString("^(std::__1::)unordered_(multi)?(map|set)<.+> >$"), stl_summary_flags, true);
+    
+    stl_summary_flags.SetSkipPointers(true);
+    
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxSmartPointerSummaryProvider, "libc++ std::shared_ptr summary provider", ConstString("^std::__1::shared_ptr<.+>(( )?&)?$"), stl_summary_flags, true);
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxSmartPointerSummaryProvider, "libc++ std::weak_ptr summary provider", ConstString("^std::__1::weak_ptr<.+>(( )?&)?$"), stl_summary_flags, true);
+    
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibCxxVectorIteratorSyntheticFrontEndCreator, "std::vector iterator synthetic children", ConstString("^std::__1::__wrap_iter<.+>$"), stl_synth_flags, true);
+    
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, "libc++ std::vector<bool> summary provider", ConstString("std::__1::vector<bool, std::__1::allocator<bool> >"), stl_summary_flags);
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEndCreator, "std::map iterator synthetic children", ConstString("^std::__1::__map_iterator<.+>$"), stl_synth_flags, true);
+    
+    AddFilter(cpp_category_sp, {"__a_"}, "libc++ std::atomic filter", ConstString("^std::__1::atomic<.*>$"), stl_synth_flags, true);
+#endif
+}
+
+static void
+LoadLibStdcppFormatters(lldb::TypeCategoryImplSP cpp_category_sp)
+{
+    if (!cpp_category_sp)
+        return;
+    
+    TypeSummaryImpl::Flags stl_summary_flags;
+    stl_summary_flags.SetCascades(true)
+    .SetSkipPointers(false)
+    .SetSkipReferences(false)
+    .SetDontShowChildren(true)
+    .SetDontShowValue(true)
+    .SetShowMembersOneLiner(false)
+    .SetHideItemNames(false);
+    
+    lldb::TypeSummaryImplSP std_string_summary_sp(new StringSummaryFormat(stl_summary_flags,
+                                                                          "${var._M_dataplus._M_p}"));
+
+    lldb::TypeSummaryImplSP cxx11_string_summary_sp(new CXXFunctionSummaryFormat(stl_summary_flags,
+                                                                                 LibStdcppStringSummaryProvider,
+                                                                                 "libstdc++ c++11 std::string summary provider"));
+    lldb::TypeSummaryImplSP cxx11_wstring_summary_sp(new CXXFunctionSummaryFormat(stl_summary_flags,
+                                                                                 LibStdcppWStringSummaryProvider,
+                                                                                 "libstdc++ c++11 std::wstring summary provider"));
+
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::string"),
+                                                      std_string_summary_sp);
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::basic_string<char>"),
+                                                      std_string_summary_sp);
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::basic_string<char,std::char_traits<char>,std::allocator<char> >"),
+                                                      std_string_summary_sp);
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::basic_string<char, std::char_traits<char>, std::allocator<char> >"),
+                                                      std_string_summary_sp);
+
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::__cxx11::string"),
+                                                      cxx11_string_summary_sp);
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >"),
+                                                      cxx11_string_summary_sp);
+
+    // making sure we force-pick the summary for printing wstring (_M_p is a wchar_t*)
+    lldb::TypeSummaryImplSP std_wstring_summary_sp(new StringSummaryFormat(stl_summary_flags,
+                                                                           "${var._M_dataplus._M_p%S}"));
+    
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::wstring"),
+                                                      std_wstring_summary_sp);
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::basic_string<wchar_t>"),
+                                                      std_wstring_summary_sp);
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> >"),
+                                                      std_wstring_summary_sp);
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >"),
+                                                      std_wstring_summary_sp);
+
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::__cxx11::wstring"),
+                                                      cxx11_wstring_summary_sp);
+    cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::__cxx11::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >"),
+                                                      cxx11_wstring_summary_sp);
+
+#ifndef LLDB_DISABLE_PYTHON
+    
+    SyntheticChildren::Flags stl_synth_flags;
+    stl_synth_flags.SetCascades(true).SetSkipPointers(false).SetSkipReferences(false);
+    
+    cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(RegularExpressionSP(new RegularExpression("^std::vector<.+>(( )?&)?$")),
+                                                            SyntheticChildrenSP(new ScriptedSyntheticChildren(stl_synth_flags,
+                                                                                                              "lldb.formatters.cpp.gnu_libstdcpp.StdVectorSynthProvider")));
+    cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(RegularExpressionSP(new RegularExpression("^std::map<.+> >(( )?&)?$")),
+                                                            SyntheticChildrenSP(new ScriptedSyntheticChildren(stl_synth_flags,
+                                                                                                              "lldb.formatters.cpp.gnu_libstdcpp.StdMapSynthProvider")));
+    cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(RegularExpressionSP(new RegularExpression("^std::(__cxx11::)?list<.+>(( )?&)?$")),
+                                                            SyntheticChildrenSP(new ScriptedSyntheticChildren(stl_synth_flags,
+                                                                                                              "lldb.formatters.cpp.gnu_libstdcpp.StdListSynthProvider")));
+    stl_summary_flags.SetDontShowChildren(false);stl_summary_flags.SetSkipPointers(true);
+    cpp_category_sp->GetRegexTypeSummariesContainer()->Add(RegularExpressionSP(new RegularExpression("^std::vector<.+>(( )?&)?$")),
+                                                           TypeSummaryImplSP(new StringSummaryFormat(stl_summary_flags,
+                                                                                                     "size=${svar%#}")));
+    cpp_category_sp->GetRegexTypeSummariesContainer()->Add(RegularExpressionSP(new RegularExpression("^std::map<.+> >(( )?&)?$")),
+                                                           TypeSummaryImplSP(new StringSummaryFormat(stl_summary_flags,
+                                                                                                     "size=${svar%#}")));
+    cpp_category_sp->GetRegexTypeSummariesContainer()->Add(RegularExpressionSP(new RegularExpression("^std::(__cxx11::)?list<.+>(( )?&)?$")),
+                                                           TypeSummaryImplSP(new StringSummaryFormat(stl_summary_flags,
+                                                                                                     "size=${svar%#}")));
+
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibStdcppVectorIteratorSyntheticFrontEndCreator, "std::vector iterator synthetic children", ConstString("^__gnu_cxx::__normal_iterator<.+>$"), stl_synth_flags, true);
+    
+    AddCXXSynthetic(cpp_category_sp, lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEndCreator, "std::map iterator synthetic children", ConstString("^std::_Rb_tree_iterator<.+>$"), stl_synth_flags, true);
+#endif
+}
+
+static void
+LoadSystemFormatters(lldb::TypeCategoryImplSP cpp_category_sp)
+{
+    if (!cpp_category_sp)
+        return;
+    
+    TypeSummaryImpl::Flags string_flags;
+    string_flags.SetCascades(true)
+    .SetSkipPointers(true)
+    .SetSkipReferences(false)
+    .SetDontShowChildren(true)
+    .SetDontShowValue(false)
+    .SetShowMembersOneLiner(false)
+    .SetHideItemNames(false);
+    
+    TypeSummaryImpl::Flags string_array_flags;
+    string_array_flags.SetCascades(true)
+    .SetSkipPointers(true)
+    .SetSkipReferences(false)
+    .SetDontShowChildren(true)
+    .SetDontShowValue(true)
+    .SetShowMembersOneLiner(false)
+    .SetHideItemNames(false);
+    
+#ifndef LLDB_DISABLE_PYTHON
+    // FIXME because of a bug in the FormattersContainer we need to add a summary for both X* and const X* (<rdar://problem/12717717>)
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char16StringSummaryProvider, "char16_t * summary provider", ConstString("char16_t *"), string_flags);
+    AddCXXSummary(cpp_category_sp,
+                  lldb_private::formatters::Char16StringSummaryProvider,
+                  "char16_t [] summary provider",
+                  ConstString("char16_t \\[[0-9]+\\]"),
+                  string_array_flags,
+                  true);
+    
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char32StringSummaryProvider, "char32_t * summary provider", ConstString("char32_t *"), string_flags);
+    AddCXXSummary(cpp_category_sp,
+                  lldb_private::formatters::Char32StringSummaryProvider,
+                  "char32_t [] summary provider",
+                  ConstString("char32_t \\[[0-9]+\\]"),
+                  string_array_flags,
+                  true);
+    
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::WCharStringSummaryProvider, "wchar_t * summary provider", ConstString("wchar_t *"), string_flags);
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::WCharStringSummaryProvider, "wchar_t * summary provider", ConstString("wchar_t \\[[0-9]+\\]"), string_array_flags, true);
+    
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char16StringSummaryProvider, "unichar * summary provider", ConstString("unichar *"), string_flags);
+    
+    TypeSummaryImpl::Flags widechar_flags;
+    widechar_flags.SetDontShowValue(true)
+    .SetSkipPointers(true)
+    .SetSkipReferences(false)
+    .SetCascades(true)
+    .SetDontShowChildren(true)
+    .SetHideItemNames(true)
+    .SetShowMembersOneLiner(false);
+    
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char16SummaryProvider, "char16_t summary provider", ConstString("char16_t"), widechar_flags);
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char32SummaryProvider, "char32_t summary provider", ConstString("char32_t"), widechar_flags);
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::WCharSummaryProvider, "wchar_t summary provider", ConstString("wchar_t"), widechar_flags);
+    
+    AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char16SummaryProvider, "unichar summary provider", ConstString("unichar"), widechar_flags);
+#endif
+}
+
+lldb::TypeCategoryImplSP
+CPlusPlusLanguage::GetFormatters ()
+{
+    static std::once_flag g_initialize;
+    static TypeCategoryImplSP g_category;
+    
+    std::call_once(g_initialize, [this] () -> void {
+        DataVisualization::Categories::GetCategory(GetPluginName(), g_category);
+        if (g_category)
+        {
+            LoadLibCxxFormatters(g_category);
+            LoadLibStdcppFormatters(g_category);
+            LoadSystemFormatters(g_category);
+        }
+    });
+    return g_category;
+}
+
+HardcodedFormatters::HardcodedSummaryFinder
+CPlusPlusLanguage::GetHardcodedSummaries ()
+{
+    static std::once_flag g_initialize;
+    static ConstString g_vectortypes("VectorTypes");
+    static HardcodedFormatters::HardcodedSummaryFinder g_formatters;
+    
+    std::call_once(g_initialize, [] () -> void {
+        g_formatters.push_back(
+                                        [](lldb_private::ValueObject& valobj,
+                                           lldb::DynamicValueType,
+                                           FormatManager&) -> TypeSummaryImpl::SharedPointer {
+                                            static CXXFunctionSummaryFormat::SharedPointer formatter_sp(new CXXFunctionSummaryFormat(TypeSummaryImpl::Flags(), lldb_private::formatters::CXXFunctionPointerSummaryProvider, "Function pointer summary provider"));
+                                            if (valobj.GetCompilerType().IsFunctionPointerType())
+                                            {
+                                                return formatter_sp;
+                                            }
+                                            return nullptr;
+                                        });
+        g_formatters.push_back(
+                                        [](lldb_private::ValueObject& valobj,
+                                           lldb::DynamicValueType,
+                                           FormatManager& fmt_mgr) -> TypeSummaryImpl::SharedPointer {
+                                            static CXXFunctionSummaryFormat::SharedPointer formatter_sp(new CXXFunctionSummaryFormat(TypeSummaryImpl::Flags()
+                                                                                                                                     .SetCascades(true)
+                                                                                                                                     .SetDontShowChildren(true)
+                                                                                                                                     .SetHideItemNames(true)
+                                                                                                                                     .SetShowMembersOneLiner(true)
+                                                                                                                                     .SetSkipPointers(true)
+                                                                                                                                     .SetSkipReferences(false),
+                                                                                                                                     lldb_private::formatters::VectorTypeSummaryProvider,
+                                                                                                                                     "vector_type pointer summary provider"));
+                                            if (valobj.GetCompilerType().IsVectorType(nullptr, nullptr))
+                                            {
+                                                if (fmt_mgr.GetCategory(g_vectortypes)->IsEnabled())
+                                                    return formatter_sp;
+                                            }
+                                            return nullptr;
+                                        });
+    });
+    
+    return g_formatters;
+}
+
+HardcodedFormatters::HardcodedSyntheticFinder
+CPlusPlusLanguage::GetHardcodedSynthetics ()
+{
+    static std::once_flag g_initialize;
+    static ConstString g_vectortypes("VectorTypes");
+    static HardcodedFormatters::HardcodedSyntheticFinder g_formatters;
+    
+    std::call_once(g_initialize, [] () -> void {
+        g_formatters.push_back(
+                                         [](lldb_private::ValueObject& valobj,
+                                            lldb::DynamicValueType,
+                                            FormatManager& fmt_mgr) -> SyntheticChildren::SharedPointer {
+                                             static CXXSyntheticChildren::SharedPointer formatter_sp(new CXXSyntheticChildren(SyntheticChildren::Flags().SetCascades(true).SetSkipPointers(true).SetSkipReferences(true).SetNonCacheable(true),
+                                                                                                                              "vector_type synthetic children",
+                                                                                                                              lldb_private::formatters::VectorTypeSyntheticFrontEndCreator));
+                                             if (valobj.GetCompilerType().IsVectorType(nullptr, nullptr))
+                                             {
+                                                 if (fmt_mgr.GetCategory(g_vectortypes)->IsEnabled())
+                                                     return formatter_sp;
+                                             }
+                                             return nullptr;
+                                         });
+    });
+    
+    return g_formatters;
+}
+
diff --git a/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h b/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h
new file mode 100644
index 0000000000000..1a8c0f6938a5b
--- /dev/null
+++ b/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h
@@ -0,0 +1,186 @@
+//===-- CPlusPlusLanguage.h -------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_CPlusPlusLanguage_h_
+#define liblldb_CPlusPlusLanguage_h_
+
+// C Includes
+// C++ Includes
+#include <vector>
+
+// Other libraries and framework includes
+#include "llvm/ADT/StringRef.h"
+
+// Project includes
+#include "lldb/lldb-private.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Target/Language.h"
+
+namespace lldb_private {
+    
+class CPlusPlusLanguage :
+    public Language
+{
+public:
+    class MethodName
+    {
+    public:
+        enum Type
+        {
+            eTypeInvalid,
+            eTypeUnknownMethod,
+            eTypeClassMethod,
+            eTypeInstanceMethod
+        };
+        
+        MethodName () :
+            m_full(),
+            m_basename(),
+            m_context(),
+            m_arguments(),
+            m_qualifiers(),
+            m_type (eTypeInvalid),
+            m_parsed (false),
+            m_parse_error (false)
+        {
+        }
+
+        MethodName (const ConstString &s) :
+            m_full(s),
+            m_basename(),
+            m_context(),
+            m_arguments(),
+            m_qualifiers(),
+            m_type (eTypeInvalid),
+            m_parsed (false),
+            m_parse_error (false)
+        {
+        }
+
+        void
+        Clear();
+        
+        bool
+        IsValid ()
+        {
+            if (!m_parsed)
+                Parse();
+            if (m_parse_error)
+                return false;
+            if (m_type == eTypeInvalid)
+                return false;
+            return (bool)m_full;
+        }
+
+        Type
+        GetType () const
+        {
+            return m_type;
+        }
+        
+        const ConstString &
+        GetFullName () const
+        {
+            return m_full;
+        }
+        
+        llvm::StringRef
+        GetBasename ();
+
+        llvm::StringRef
+        GetContext ();
+        
+        llvm::StringRef
+        GetArguments ();
+        
+        llvm::StringRef
+        GetQualifiers ();
+
+    protected:
+        void
+        Parse();
+
+        ConstString     m_full;         // Full name:    "lldb::SBTarget::GetBreakpointAtIndex(unsigned int) const"
+        llvm::StringRef m_basename;     // Basename:     "GetBreakpointAtIndex"
+        llvm::StringRef m_context;      // Decl context: "lldb::SBTarget"
+        llvm::StringRef m_arguments;    // Arguments:    "(unsigned int)"
+        llvm::StringRef m_qualifiers;   // Qualifiers:   "const"
+        Type m_type;
+        bool m_parsed;
+        bool m_parse_error;
+    };
+
+    CPlusPlusLanguage() = default;
+
+    ~CPlusPlusLanguage() override = default;
+
+    lldb::LanguageType
+    GetLanguageType () const override
+    {
+        return lldb::eLanguageTypeC_plus_plus;
+    }
+    
+    lldb::TypeCategoryImplSP
+    GetFormatters () override;
+    
+    HardcodedFormatters::HardcodedSummaryFinder
+    GetHardcodedSummaries () override;
+    
+    HardcodedFormatters::HardcodedSyntheticFinder
+    GetHardcodedSynthetics () override;
+    
+    //------------------------------------------------------------------
+    // Static Functions
+    //------------------------------------------------------------------
+    static void
+    Initialize();
+    
+    static void
+    Terminate();
+    
+    static lldb_private::Language *
+    CreateInstance (lldb::LanguageType language);
+    
+    static lldb_private::ConstString
+    GetPluginNameStatic();
+
+    static bool
+    IsCPPMangledName(const char *name);
+
+    // Extract C++ context and identifier from a string using heuristic matching (as opposed to
+    // CPlusPlusLanguage::MethodName which has to have a fully qualified C++ name with parens and arguments.
+    // If the name is a lone C identifier (e.g. C) or a qualified C identifier (e.g. A::B::C) it will return true,
+    // and identifier will be the identifier (C and C respectively) and the context will be "" and "A::B::" respectively.
+    // If the name fails the heuristic matching for a qualified or unqualified C/C++ identifier, then it will return false
+    // and identifier and context will be unchanged.
+
+    static bool
+    ExtractContextAndIdentifier (const char *name, llvm::StringRef &context, llvm::StringRef &identifier);
+    
+    // in some cases, compilers will output different names for one same type. when that happens, it might be impossible
+    // to construct SBType objects for a valid type, because the name that is available is not the same as the name that
+    // can be used as a search key in FindTypes(). the equivalents map here is meant to return possible alternative names
+    // for a type through which a search can be conducted. Currently, this is only enabled for C++ but can be extended
+    // to ObjC or other languages if necessary
+    static uint32_t
+    FindEquivalentNames(ConstString type_name, std::vector<ConstString>& equivalents);
+
+    //------------------------------------------------------------------
+    // PluginInterface protocol
+    //------------------------------------------------------------------
+    ConstString
+    GetPluginName() override;
+    
+    uint32_t
+    GetPluginVersion() override;
+};
+    
+} // namespace lldb_private
+
+#endif // liblldb_CPlusPlusLanguage_h_
diff --git a/source/Plugins/Language/CPlusPlus/CxxStringTypes.cpp b/source/Plugins/Language/CPlusPlus/CxxStringTypes.cpp
new file mode 100644
index 0000000000000..7e8d9582a2b58
--- /dev/null
+++ b/source/Plugins/Language/CPlusPlus/CxxStringTypes.cpp
@@ -0,0 +1,204 @@
+//===-- CXXStringTypes.cpp --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "CxxStringTypes.h"
+
+#include "llvm/Support/ConvertUTF.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/StringPrinter.h"
+#include "lldb/DataFormatters/TypeSummary.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/SectionLoadList.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Target/Thread.h"
+#include "lldb/Utility/ProcessStructReader.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+
+#include <algorithm>
+
+#if __ANDROID_NDK__
+#include <sys/types.h>
+#endif
+
+#include "lldb/Host/Time.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+bool
+lldb_private::formatters::Char16StringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    lldb::addr_t valobj_addr = GetArrayAddressOrPointerValue(valobj);
+    if (valobj_addr == 0 || valobj_addr == LLDB_INVALID_ADDRESS)
+        return false;
+    
+    StringPrinter::ReadStringAndDumpToStreamOptions options(valobj);
+    options.SetLocation(valobj_addr);
+    options.SetProcessSP(process_sp);
+    options.SetStream(&stream);
+    options.SetPrefixToken("u");
+    
+    if (!StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF16>(options))
+    {
+        stream.Printf("Summary Unavailable");
+        return true;
+    }
+    
+    return true;
+}
+
+bool
+lldb_private::formatters::Char32StringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    lldb::addr_t valobj_addr = GetArrayAddressOrPointerValue(valobj);
+    if (valobj_addr == 0 || valobj_addr == LLDB_INVALID_ADDRESS)
+        return false;
+    
+    StringPrinter::ReadStringAndDumpToStreamOptions options(valobj);
+    options.SetLocation(valobj_addr);
+    options.SetProcessSP(process_sp);
+    options.SetStream(&stream);
+    options.SetPrefixToken("U");
+    
+    if (!StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF32>(options))
+    {
+        stream.Printf("Summary Unavailable");
+        return true;
+    }
+    
+    return true;
+}
+
+bool
+lldb_private::formatters::WCharStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    lldb::addr_t valobj_addr = GetArrayAddressOrPointerValue(valobj);
+    if (valobj_addr == 0 || valobj_addr == LLDB_INVALID_ADDRESS)
+        return false;
+    
+    // Get a wchar_t basic type from the current type system
+    CompilerType wchar_compiler_type = valobj.GetCompilerType().GetBasicTypeFromAST(lldb::eBasicTypeWChar);
+    
+    if (!wchar_compiler_type)
+        return false;
+    
+    const uint32_t wchar_size = wchar_compiler_type.GetBitSize(nullptr); // Safe to pass NULL for exe_scope here
+    
+    StringPrinter::ReadStringAndDumpToStreamOptions options(valobj);
+    options.SetLocation(valobj_addr);
+    options.SetProcessSP(process_sp);
+    options.SetStream(&stream);
+    options.SetPrefixToken("L");
+    
+    switch (wchar_size)
+    {
+        case 8:
+            return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF8>(options);
+        case 16:
+            return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF16>(options);
+        case 32:
+            return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF32>(options);
+        default:
+            stream.Printf("size for wchar_t is not valid");
+            return true;
+    }
+    return true;
+}
+
+bool
+lldb_private::formatters::Char16SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&)
+{
+    DataExtractor data;
+    Error error;
+    valobj.GetData(data, error);
+    
+    if (error.Fail())
+        return false;
+    
+    std::string value;
+    valobj.GetValueAsCString(lldb::eFormatUnicode16, value);
+    if (!value.empty())
+        stream.Printf("%s ", value.c_str());
+    
+    StringPrinter::ReadBufferAndDumpToStreamOptions options(valobj);
+    options.SetData(data);
+    options.SetStream(&stream);
+    options.SetPrefixToken("u");
+    options.SetQuote('\'');
+    options.SetSourceSize(1);
+    options.SetBinaryZeroIsTerminator(false);
+    
+    return StringPrinter::ReadBufferAndDumpToStream<StringPrinter::StringElementType::UTF16>(options);
+}
+
+bool
+lldb_private::formatters::Char32SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&)
+{
+    DataExtractor data;
+    Error error;
+    valobj.GetData(data, error);
+    
+    if (error.Fail())
+        return false;
+    
+    std::string value;
+    valobj.GetValueAsCString(lldb::eFormatUnicode32, value);
+    if (!value.empty())
+        stream.Printf("%s ", value.c_str());
+    
+    StringPrinter::ReadBufferAndDumpToStreamOptions options(valobj);
+    options.SetData(data);
+    options.SetStream(&stream);
+    options.SetPrefixToken("U");
+    options.SetQuote('\'');
+    options.SetSourceSize(1);
+    options.SetBinaryZeroIsTerminator(false);
+    
+    return StringPrinter::ReadBufferAndDumpToStream<StringPrinter::StringElementType::UTF32>(options);
+}
+
+bool
+lldb_private::formatters::WCharSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions&)
+{
+    DataExtractor data;
+    Error error;
+    valobj.GetData(data, error);
+    
+    if (error.Fail())
+        return false;
+    
+    StringPrinter::ReadBufferAndDumpToStreamOptions options(valobj);
+    options.SetData(data);
+    options.SetStream(&stream);
+    options.SetPrefixToken("L");
+    options.SetQuote('\'');
+    options.SetSourceSize(1);
+    options.SetBinaryZeroIsTerminator(false);
+    
+    return StringPrinter::ReadBufferAndDumpToStream<StringPrinter::StringElementType::UTF16>(options);
+}
diff --git a/source/Plugins/Language/CPlusPlus/CxxStringTypes.h b/source/Plugins/Language/CPlusPlus/CxxStringTypes.h
new file mode 100644
index 0000000000000..bfb03bda7ee05
--- /dev/null
+++ b/source/Plugins/Language/CPlusPlus/CxxStringTypes.h
@@ -0,0 +1,41 @@
+//===-- CxxStringTypes.h ----------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_CxxStringTypes_h_
+#define liblldb_CxxStringTypes_h_
+
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/DataFormatters/TypeSummary.h"
+
+namespace lldb_private {
+    namespace formatters
+    {
+        bool
+        Char16StringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // char16_t* and unichar*
+        
+        bool
+        Char32StringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // char32_t*
+        
+        bool
+        WCharStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // wchar_t*
+        
+        bool
+        Char16SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // char16_t and unichar
+        
+        bool
+        Char32SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // char32_t
+        
+        bool
+        WCharSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // wchar_t
+        
+    } // namespace formatters
+} // namespace lldb_private
+
+#endif // liblldb_CxxStringTypes_h_
diff --git a/source/Plugins/Language/CPlusPlus/LibCxx.cpp b/source/Plugins/Language/CPlusPlus/LibCxx.cpp
new file mode 100644
index 0000000000000..950bd62c5c9fc
--- /dev/null
+++ b/source/Plugins/Language/CPlusPlus/LibCxx.cpp
@@ -0,0 +1,653 @@
+//===-- LibCxx.cpp ----------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "LibCxx.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Debugger.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/FormatEntity.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/DataFormatters/StringPrinter.h"
+#include "lldb/DataFormatters/TypeSummary.h"
+#include "lldb/DataFormatters/VectorIterator.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/Target.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+bool
+lldb_private::formatters::LibcxxSmartPointerSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    ValueObjectSP valobj_sp(valobj.GetNonSyntheticValue());
+    if (!valobj_sp)
+        return false;
+    ValueObjectSP ptr_sp(valobj_sp->GetChildMemberWithName(ConstString("__ptr_"), true));
+    ValueObjectSP count_sp(valobj_sp->GetChildAtNamePath( {ConstString("__cntrl_"),ConstString("__shared_owners_")} ));
+    ValueObjectSP weakcount_sp(valobj_sp->GetChildAtNamePath( {ConstString("__cntrl_"),ConstString("__shared_weak_owners_")} ));
+    
+    if (!ptr_sp)
+        return false;
+    
+    if (ptr_sp->GetValueAsUnsigned(0) == 0)
+    {
+        stream.Printf("nullptr");
+        return true;
+    }
+    else
+    {
+        bool print_pointee = false;
+        Error error;
+        ValueObjectSP pointee_sp = ptr_sp->Dereference(error);
+        if (pointee_sp && error.Success())
+        {
+            if (pointee_sp->DumpPrintableRepresentation(stream,
+                                                        ValueObject::eValueObjectRepresentationStyleSummary,
+                                                        lldb::eFormatInvalid,
+                                                        ValueObject::ePrintableRepresentationSpecialCasesDisable,
+                                                        false))
+                print_pointee = true;
+        }
+        if (!print_pointee)
+            stream.Printf("ptr = 0x%" PRIx64, ptr_sp->GetValueAsUnsigned(0));
+    }
+    
+    if (count_sp)
+        stream.Printf(" strong=%" PRIu64, 1+count_sp->GetValueAsUnsigned(0));
+
+    if (weakcount_sp)
+        stream.Printf(" weak=%" PRIu64, 1+weakcount_sp->GetValueAsUnsigned(0));
+    
+    return true;
+}
+
+lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::LibcxxVectorBoolSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get()),
+m_bool_type(),
+m_exe_ctx_ref(),
+m_count(0),
+m_base_data_address(0),
+m_children()
+{
+    if (valobj_sp)
+    {
+        Update();
+        m_bool_type = valobj_sp->GetCompilerType().GetBasicTypeFromAST(lldb::eBasicTypeBool);
+    }
+}
+
+size_t
+lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::CalculateNumChildren ()
+{
+    return m_count;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    auto iter = m_children.find(idx),
+        end = m_children.end();
+    if (iter != end)
+        return iter->second;
+    if (idx >= m_count)
+        return ValueObjectSP();
+    if (m_base_data_address == 0 || m_count == 0)
+        return ValueObjectSP();
+    if (!m_bool_type)
+        return ValueObjectSP();
+    size_t byte_idx = (idx >> 3); // divide by 8 to get byte index
+    size_t bit_index = (idx & 7); // efficient idx % 8 for bit index
+    lldb::addr_t byte_location = m_base_data_address + byte_idx;
+    ProcessSP process_sp(m_exe_ctx_ref.GetProcessSP());
+    if (!process_sp)
+        return ValueObjectSP();
+    uint8_t byte = 0;
+    uint8_t mask = 0;
+    Error err;
+    size_t bytes_read = process_sp->ReadMemory(byte_location, &byte, 1, err);
+    if (err.Fail() || bytes_read == 0)
+        return ValueObjectSP();
+    switch (bit_index)
+    {
+        case 0:
+            mask = 1; break;
+        case 1:
+            mask = 2; break;
+        case 2:
+            mask = 4; break;
+        case 3:
+            mask = 8; break;
+        case 4:
+            mask = 16; break;
+        case 5:
+            mask = 32; break;
+        case 6:
+            mask = 64; break;
+        case 7:
+            mask = 128; break;
+        default:
+            return ValueObjectSP();
+    }
+    bool bit_set = ((byte & mask) != 0);
+    DataBufferSP buffer_sp(new DataBufferHeap(m_bool_type.GetByteSize(nullptr),0));
+    if (bit_set && buffer_sp && buffer_sp->GetBytes())
+        *(buffer_sp->GetBytes()) = 1; // regardless of endianness, anything non-zero is true
+    StreamString name; name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+    ValueObjectSP retval_sp(CreateValueObjectFromData(name.GetData(), DataExtractor(buffer_sp, process_sp->GetByteOrder(), process_sp->GetAddressByteSize()), m_exe_ctx_ref, m_bool_type));
+    if (retval_sp)
+        m_children[idx] = retval_sp;
+    return retval_sp;
+}
+
+/*(std::__1::vector<std::__1::allocator<bool> >) vBool = {
+ __begin_ = 0x00000001001000e0
+ __size_ = 56
+ __cap_alloc_ = {
+ std::__1::__libcpp_compressed_pair_imp<unsigned long, std::__1::allocator<unsigned long> > = {
+ __first_ = 1
+ }
+ }
+ }*/
+
+bool
+lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::Update()
+{
+    m_children.clear();
+    ValueObjectSP valobj_sp = m_backend.GetSP();
+    if (!valobj_sp)
+        return false;
+    m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
+    ValueObjectSP size_sp(valobj_sp->GetChildMemberWithName(ConstString("__size_"), true));
+    if (!size_sp)
+        return false;
+    m_count = size_sp->GetValueAsUnsigned(0);
+    if (!m_count)
+        return true;
+    ValueObjectSP begin_sp(valobj_sp->GetChildMemberWithName(ConstString("__begin_"), true));
+    if (!begin_sp)
+    {
+        m_count = 0;
+        return false;
+    }
+    m_base_data_address = begin_sp->GetValueAsUnsigned(0);
+    if (!m_base_data_address)
+    {
+        m_count = 0;
+        return false;
+    }
+    return false;
+}
+
+bool
+lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+size_t
+lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    if (!m_count || !m_base_data_address)
+        return UINT32_MAX;
+    const char* item_name = name.GetCString();
+    uint32_t idx = ExtractIndexFromString(item_name);
+    if (idx < UINT32_MAX && idx >= CalculateNumChildren())
+        return UINT32_MAX;
+    return idx;
+}
+
+lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::~LibcxxVectorBoolSyntheticFrontEnd ()
+{}
+
+SyntheticChildrenFrontEnd*
+lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    if (!valobj_sp)
+        return NULL;
+    return (new LibcxxVectorBoolSyntheticFrontEnd(valobj_sp));
+}
+
+/*
+ (lldb) fr var ibeg --raw --ptr-depth 1
+ (std::__1::__map_iterator<std::__1::__tree_iterator<std::__1::pair<int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::__tree_node<std::__1::pair<int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, void *> *, long> >) ibeg = {
+ __i_ = {
+ __ptr_ = 0x0000000100103870 {
+ std::__1::__tree_node_base<void *> = {
+ std::__1::__tree_end_node<std::__1::__tree_node_base<void *> *> = {
+ __left_ = 0x0000000000000000
+ }
+ __right_ = 0x0000000000000000
+ __parent_ = 0x00000001001038b0
+ __is_black_ = true
+ }
+ __value_ = {
+ first = 0
+ second = { std::string }
+ */
+
+lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::LibCxxMapIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get()),
+m_pair_ptr()
+{
+    if (valobj_sp)
+        Update();
+}
+
+bool
+lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::Update()
+{
+    ValueObjectSP valobj_sp = m_backend.GetSP();
+    if (!valobj_sp)
+        return false;
+    
+    TargetSP target_sp(valobj_sp->GetTargetSP());
+    
+    if (!target_sp)
+        return false;
+
+    if (!valobj_sp)
+        return false;
+
+    // this must be a ValueObject* because it is a child of the ValueObject we are producing children for
+    // it if were a ValueObjectSP, we would end up with a loop (iterator -> synthetic -> child -> parent == iterator)
+    // and that would in turn leak memory by never allowing the ValueObjects to die and free their memory
+    m_pair_ptr = valobj_sp->GetValueForExpressionPath(".__i_.__ptr_->__value_",
+                                                     NULL,
+                                                     NULL,
+                                                     NULL,
+                                                     ValueObject::GetValueForExpressionPathOptions().DontCheckDotVsArrowSyntax().SetSyntheticChildrenTraversal(ValueObject::GetValueForExpressionPathOptions::SyntheticChildrenTraversal::None),
+                                                     NULL).get();
+    
+    return false;
+}
+
+size_t
+lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::CalculateNumChildren ()
+{
+    return 2;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    if (!m_pair_ptr)
+        return lldb::ValueObjectSP();
+    return m_pair_ptr->GetChildAtIndex(idx, true);
+}
+
+bool
+lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+size_t
+lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    if (name == ConstString("first"))
+        return 0;
+    if (name == ConstString("second"))
+        return 1;
+    return UINT32_MAX;
+}
+
+lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::~LibCxxMapIteratorSyntheticFrontEnd ()
+{
+    // this will be deleted when its parent dies (since it's a child object)
+    //delete m_pair_ptr;
+}
+
+SyntheticChildrenFrontEnd*
+lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    if (!valobj_sp)
+        return NULL;
+    return (new LibCxxMapIteratorSyntheticFrontEnd(valobj_sp));
+}
+
+/*
+ (lldb) fr var ibeg --raw --ptr-depth 1 -T
+ (std::__1::__wrap_iter<int *>) ibeg = {
+ (std::__1::__wrap_iter<int *>::iterator_type) __i = 0x00000001001037a0 {
+ (int) *__i = 1
+ }
+ }
+*/
+
+SyntheticChildrenFrontEnd*
+lldb_private::formatters::LibCxxVectorIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    static ConstString g_item_name;
+    if (!g_item_name)
+        g_item_name.SetCString("__i");
+    if (!valobj_sp)
+        return NULL;
+    return (new VectorIteratorSyntheticFrontEnd(valobj_sp,g_item_name));
+}
+
+lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEnd::LibcxxSharedPtrSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get()),
+m_cntrl(NULL),
+m_count_sp(),
+m_weak_count_sp(),
+m_ptr_size(0),
+m_byte_order(lldb::eByteOrderInvalid)
+{
+    if (valobj_sp)
+        Update();
+}
+
+size_t
+lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEnd::CalculateNumChildren ()
+{
+    return (m_cntrl ? 1 : 0);
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    if (!m_cntrl)
+        return lldb::ValueObjectSP();
+
+    ValueObjectSP valobj_sp = m_backend.GetSP();
+    if (!valobj_sp)
+        return lldb::ValueObjectSP();
+
+    if (idx == 0)
+        return valobj_sp->GetChildMemberWithName(ConstString("__ptr_"), true);
+
+    if (idx > 2)
+        return lldb::ValueObjectSP();
+
+    if (idx == 1)
+    {
+        if (!m_count_sp)
+        {
+            ValueObjectSP shared_owners_sp(m_cntrl->GetChildMemberWithName(ConstString("__shared_owners_"),true));
+            if (!shared_owners_sp)
+                return lldb::ValueObjectSP();
+            uint64_t count = 1 + shared_owners_sp->GetValueAsUnsigned(0);
+            DataExtractor data(&count, 8, m_byte_order, m_ptr_size);
+            m_count_sp = CreateValueObjectFromData("count", data, valobj_sp->GetExecutionContextRef(), shared_owners_sp->GetCompilerType());
+        }
+        return m_count_sp;
+    }
+    else /* if (idx == 2) */
+    {
+        if (!m_weak_count_sp)
+        {
+            ValueObjectSP shared_weak_owners_sp(m_cntrl->GetChildMemberWithName(ConstString("__shared_weak_owners_"),true));
+            if (!shared_weak_owners_sp)
+                return lldb::ValueObjectSP();
+            uint64_t count = 1 + shared_weak_owners_sp->GetValueAsUnsigned(0);
+            DataExtractor data(&count, 8, m_byte_order, m_ptr_size);
+            m_weak_count_sp = CreateValueObjectFromData("count", data, valobj_sp->GetExecutionContextRef(), shared_weak_owners_sp->GetCompilerType());
+        }
+        return m_weak_count_sp;
+    }
+}
+
+bool
+lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEnd::Update()
+{
+    m_count_sp.reset();
+    m_weak_count_sp.reset();
+    m_cntrl = NULL;
+    
+    ValueObjectSP valobj_sp = m_backend.GetSP();
+    if (!valobj_sp)
+        return false;
+    
+    TargetSP target_sp(valobj_sp->GetTargetSP());
+    if (!target_sp)
+        return false;
+    
+    m_byte_order = target_sp->GetArchitecture().GetByteOrder();
+    m_ptr_size = target_sp->GetArchitecture().GetAddressByteSize();
+    
+    lldb::ValueObjectSP cntrl_sp(valobj_sp->GetChildMemberWithName(ConstString("__cntrl_"),true));
+    
+    m_cntrl = cntrl_sp.get(); // need to store the raw pointer to avoid a circular dependency
+    return false;
+}
+
+bool
+lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+size_t
+lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    if (name == ConstString("__ptr_"))
+        return 0;
+    if (name == ConstString("count"))
+        return 1;
+    if (name == ConstString("weak_count"))
+        return 2;
+    return UINT32_MAX;
+}
+
+lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEnd::~LibcxxSharedPtrSyntheticFrontEnd ()
+{}
+
+SyntheticChildrenFrontEnd*
+lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    if (!valobj_sp)
+        return NULL;
+    return (new LibcxxSharedPtrSyntheticFrontEnd(valobj_sp));
+}
+
+bool
+lldb_private::formatters::LibcxxContainerSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    if (valobj.IsPointerType())
+    {
+        uint64_t value = valobj.GetValueAsUnsigned(0);
+        if (!value)
+            return false;
+        stream.Printf("0x%016" PRIx64 " ", value);
+    }
+    return FormatEntity::FormatStringRef("size=${svar%#}", stream, NULL, NULL, NULL, &valobj, false, false);
+}
+
+// the field layout in a libc++ string (cap, side, data or data, size, cap)
+enum LibcxxStringLayoutMode
+{
+    eLibcxxStringLayoutModeCSD = 0,
+    eLibcxxStringLayoutModeDSC = 1,
+    eLibcxxStringLayoutModeInvalid = 0xffff
+};
+
+// this function abstracts away the layout and mode details of a libc++ string
+// and returns the address of the data and the size ready for callers to consume
+static bool
+ExtractLibcxxStringInfo (ValueObject& valobj,
+                         ValueObjectSP &location_sp,
+                         uint64_t& size)
+{
+    ValueObjectSP D(valobj.GetChildAtIndexPath({0,0,0,0}));
+    if (!D)
+        return false;
+    
+    ValueObjectSP layout_decider(D->GetChildAtIndexPath({0,0}));
+    
+    // this child should exist
+    if (!layout_decider)
+        return false;
+    
+    ConstString g_data_name("__data_");
+    ConstString g_size_name("__size_");
+    bool short_mode = false; // this means the string is in short-mode and the data is stored inline
+    LibcxxStringLayoutMode layout = (layout_decider->GetName() == g_data_name) ? eLibcxxStringLayoutModeDSC : eLibcxxStringLayoutModeCSD;
+    uint64_t size_mode_value = 0;
+    
+    if (layout == eLibcxxStringLayoutModeDSC)
+    {
+        ValueObjectSP size_mode(D->GetChildAtIndexPath({1,1,0}));
+        if (!size_mode)
+            return false;
+        
+        if (size_mode->GetName() != g_size_name)
+        {
+            // we are hitting the padding structure, move along
+            size_mode = D->GetChildAtIndexPath({1,1,1});
+            if (!size_mode)
+                return false;
+        }
+        
+        size_mode_value = (size_mode->GetValueAsUnsigned(0));
+        short_mode = ((size_mode_value & 0x80) == 0);
+    }
+    else
+    {
+        ValueObjectSP size_mode(D->GetChildAtIndexPath({1,0,0}));
+        if (!size_mode)
+            return false;
+        
+        size_mode_value = (size_mode->GetValueAsUnsigned(0));
+        short_mode = ((size_mode_value & 1) == 0);
+    }
+    
+    if (short_mode)
+    {
+        ValueObjectSP s(D->GetChildAtIndex(1, true));
+        if (!s)
+            return false;
+        location_sp = s->GetChildAtIndex((layout == eLibcxxStringLayoutModeDSC) ? 0 : 1, true);
+        size = (layout == eLibcxxStringLayoutModeDSC) ? size_mode_value : ((size_mode_value >> 1) % 256);
+        return (location_sp.get() != nullptr);
+    }
+    else
+    {
+        ValueObjectSP l(D->GetChildAtIndex(0, true));
+        if (!l)
+            return false;
+        // we can use the layout_decider object as the data pointer
+        location_sp = (layout == eLibcxxStringLayoutModeDSC) ? layout_decider : l->GetChildAtIndex(2, true);
+        ValueObjectSP size_vo(l->GetChildAtIndex(1, true));
+        if (!size_vo || !location_sp)
+            return false;
+        size = size_vo->GetValueAsUnsigned(0);
+        return true;
+    }
+}
+
+bool
+lldb_private::formatters::LibcxxWStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& summary_options)
+{
+    uint64_t size = 0;
+    ValueObjectSP location_sp((ValueObject*)nullptr);
+    if (!ExtractLibcxxStringInfo(valobj, location_sp, size))
+        return false;
+    if (size == 0)
+    {
+        stream.Printf("L\"\"");
+        return true;
+    }
+    if (!location_sp)
+        return false;
+    
+    DataExtractor extractor;
+    
+    StringPrinter::ReadBufferAndDumpToStreamOptions options(valobj);
+    
+    if (summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryCapped)
+    {
+        const auto max_size = valobj.GetTargetSP()->GetMaximumSizeOfStringSummary();
+        if (size > max_size)
+        {
+            size = max_size;
+            options.SetIsTruncated(true);
+        }
+    }
+    location_sp->GetPointeeData(extractor, 0, size);
+    
+    // std::wstring::size() is measured in 'characters', not bytes
+    auto wchar_t_size = valobj.GetTargetSP()->GetScratchClangASTContext()->GetBasicType(lldb::eBasicTypeWChar).GetByteSize(nullptr);
+    
+    options.SetData(extractor);
+    options.SetStream(&stream);
+    options.SetPrefixToken("L");
+    options.SetQuote('"');
+    options.SetSourceSize(size);
+    options.SetBinaryZeroIsTerminator(false);
+    
+    switch (wchar_t_size)
+    {
+        case 1:
+            StringPrinter::ReadBufferAndDumpToStream<lldb_private::formatters::StringPrinter::StringElementType::UTF8>(options);
+            break;
+            
+        case 2:
+            lldb_private::formatters::StringPrinter::ReadBufferAndDumpToStream<lldb_private::formatters::StringPrinter::StringElementType::UTF16>(options);
+            break;
+            
+        case 4:
+            lldb_private::formatters::StringPrinter::ReadBufferAndDumpToStream<lldb_private::formatters::StringPrinter::StringElementType::UTF32>(options);
+            break;
+            
+        default:
+            stream.Printf("size for wchar_t is not valid");
+            return true;
+    }
+    
+    return true;
+}
+
+bool
+lldb_private::formatters::LibcxxStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& summary_options)
+{
+    uint64_t size = 0;
+    ValueObjectSP location_sp((ValueObject*)nullptr);
+    
+    if (!ExtractLibcxxStringInfo(valobj, location_sp, size))
+        return false;
+    
+    if (size == 0)
+    {
+        stream.Printf("\"\"");
+        return true;
+    }
+    
+    if (!location_sp)
+        return false;
+    
+    StringPrinter::ReadBufferAndDumpToStreamOptions options(valobj);
+    
+    DataExtractor extractor;
+    if (summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryCapped)
+    {
+        const auto max_size = valobj.GetTargetSP()->GetMaximumSizeOfStringSummary();
+        if (size > max_size)
+        {
+            size = max_size;
+            options.SetIsTruncated(true);
+        }
+    }
+    location_sp->GetPointeeData(extractor, 0, size);
+    
+    options.SetData(extractor);
+    options.SetStream(&stream);
+    options.SetPrefixToken(0);
+    options.SetQuote('"');
+    options.SetSourceSize(size);
+    options.SetBinaryZeroIsTerminator(false);
+    StringPrinter::ReadBufferAndDumpToStream<StringPrinter::StringElementType::ASCII>(options);
+    
+    return true;
+}
diff --git a/source/Plugins/Language/CPlusPlus/LibCxx.h b/source/Plugins/Language/CPlusPlus/LibCxx.h
new file mode 100644
index 0000000000000..ae00bc0ade340
--- /dev/null
+++ b/source/Plugins/Language/CPlusPlus/LibCxx.h
@@ -0,0 +1,141 @@
+//===-- LibCxx.h ---------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_LibCxx_h_
+#define liblldb_LibCxx_h_
+
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/DataFormatters/TypeSummary.h"
+#include "lldb/DataFormatters/TypeSynthetic.h"
+
+namespace lldb_private {
+    namespace formatters
+    {
+        
+        bool
+        LibcxxStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // libc++ std::string
+        
+        bool
+        LibcxxWStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // libc++ std::wstring
+        
+        bool
+        LibcxxSmartPointerSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // libc++ std::shared_ptr<> and std::weak_ptr<>
+        
+        class LibcxxVectorBoolSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            LibcxxVectorBoolSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+            
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+            
+            ~LibcxxVectorBoolSyntheticFrontEnd() override;
+            
+        private:
+            CompilerType m_bool_type;
+            ExecutionContextRef m_exe_ctx_ref;
+            uint64_t m_count;
+            lldb::addr_t m_base_data_address;
+            std::map<size_t,lldb::ValueObjectSP> m_children;
+        };
+        
+        SyntheticChildrenFrontEnd* LibcxxVectorBoolSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+        
+        bool
+        LibcxxContainerSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        class LibCxxMapIteratorSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            LibCxxMapIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+            
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+            
+            ~LibCxxMapIteratorSyntheticFrontEnd() override;
+            
+        private:
+            ValueObject *m_pair_ptr;
+        };
+        
+        SyntheticChildrenFrontEnd* LibCxxMapIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+        
+        SyntheticChildrenFrontEnd* LibCxxVectorIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+        
+        class LibcxxSharedPtrSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            LibcxxSharedPtrSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+            
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+            
+            ~LibcxxSharedPtrSyntheticFrontEnd() override;
+            
+        private:
+            ValueObject* m_cntrl;
+            lldb::ValueObjectSP m_count_sp;
+            lldb::ValueObjectSP m_weak_count_sp;
+            uint8_t m_ptr_size;
+            lldb::ByteOrder m_byte_order;
+        };
+        
+        SyntheticChildrenFrontEnd* LibcxxSharedPtrSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+        
+        SyntheticChildrenFrontEnd* LibcxxStdVectorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+        
+        SyntheticChildrenFrontEnd* LibcxxStdListSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+        
+        SyntheticChildrenFrontEnd* LibcxxStdMapSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+        
+        SyntheticChildrenFrontEnd* LibcxxStdUnorderedMapSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+        
+        SyntheticChildrenFrontEnd* LibcxxInitializerListSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+
+    } // namespace formatters
+} // namespace lldb_private
+
+#endif // liblldb_LibCxx_h_
diff --git a/source/Plugins/Language/CPlusPlus/LibCxxInitializerList.cpp b/source/Plugins/Language/CPlusPlus/LibCxxInitializerList.cpp
new file mode 100644
index 0000000000000..9970d49dac624
--- /dev/null
+++ b/source/Plugins/Language/CPlusPlus/LibCxxInitializerList.cpp
@@ -0,0 +1,147 @@
+//===-- LibCxxInitializerList.cpp -------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "LibCxx.h"
+
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+namespace lldb_private {
+    namespace formatters {
+        class LibcxxInitializerListSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            LibcxxInitializerListSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~LibcxxInitializerListSyntheticFrontEnd() override;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+            
+        private:
+            ValueObject* m_start;
+            CompilerType m_element_type;
+            uint32_t m_element_size;
+            size_t m_num_elements;
+            std::map<size_t,lldb::ValueObjectSP> m_children;
+        };
+    } // namespace formatters
+} // namespace lldb_private
+
+lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::LibcxxInitializerListSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get()),
+m_start(NULL),
+m_element_type(),
+m_element_size(0),
+m_num_elements(0),
+m_children()
+{
+    if (valobj_sp)
+        Update();
+}
+
+lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::~LibcxxInitializerListSyntheticFrontEnd()
+{
+    // this needs to stay around because it's a child object who will follow its parent's life cycle
+    // delete m_start;
+}
+
+size_t
+lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::CalculateNumChildren ()
+{
+    static ConstString g___size_("__size_");
+    m_num_elements = 0;
+    ValueObjectSP size_sp(m_backend.GetChildMemberWithName(g___size_, true));
+    if (size_sp)
+        m_num_elements = size_sp->GetValueAsUnsigned(0);
+    return m_num_elements;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    if (!m_start)
+        return lldb::ValueObjectSP();
+    
+    auto cached = m_children.find(idx);
+    if (cached != m_children.end())
+        return cached->second;
+    
+    uint64_t offset = idx * m_element_size;
+    offset = offset + m_start->GetValueAsUnsigned(0);
+    StreamString name;
+    name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+    ValueObjectSP child_sp = CreateValueObjectFromAddress(name.GetData(), offset, m_backend.GetExecutionContextRef(), m_element_type);
+    m_children[idx] = child_sp;
+    return child_sp;
+}
+
+bool
+lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::Update()
+{
+    static ConstString g___begin_("__begin_");
+
+    m_start = nullptr;
+    m_num_elements = 0;
+    m_children.clear();
+    lldb::TemplateArgumentKind kind;
+    m_element_type = m_backend.GetCompilerType().GetTemplateArgument(0, kind);
+    if (kind != lldb::eTemplateArgumentKindType || false == m_element_type.IsValid())
+        return false;
+    
+    m_element_size = m_element_type.GetByteSize(nullptr);
+    
+    if (m_element_size > 0)
+        m_start = m_backend.GetChildMemberWithName(g___begin_,true).get(); // store raw pointers or end up with a circular dependency
+
+    return false;
+}
+
+bool
+lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+size_t
+lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    if (!m_start)
+        return UINT32_MAX;
+    return ExtractIndexFromString(name.GetCString());
+}
+
+lldb_private::SyntheticChildrenFrontEnd*
+lldb_private::formatters::LibcxxInitializerListSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    if (!valobj_sp)
+        return NULL;
+    return (new LibcxxInitializerListSyntheticFrontEnd(valobj_sp));
+}
diff --git a/source/Plugins/Language/CPlusPlus/LibCxxList.cpp b/source/Plugins/Language/CPlusPlus/LibCxxList.cpp
new file mode 100644
index 0000000000000..f86f968ea8573
--- /dev/null
+++ b/source/Plugins/Language/CPlusPlus/LibCxxList.cpp
@@ -0,0 +1,414 @@
+//===-- LibCxxList.cpp ------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "LibCxx.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/Target.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+namespace {
+
+    class ListEntry
+    {
+    public:
+        ListEntry() = default;
+        ListEntry (ValueObjectSP entry_sp) : m_entry_sp(entry_sp) {}
+        ListEntry (const ListEntry& rhs) : m_entry_sp(rhs.m_entry_sp) {}
+        ListEntry (ValueObject* entry) : m_entry_sp(entry ? entry->GetSP() : ValueObjectSP()) {}
+
+        ListEntry
+        next ()
+        {
+            if (!m_entry_sp)
+                return ListEntry();
+            return ListEntry(m_entry_sp->GetChildAtIndexPath({0,1}));
+        }
+
+        ListEntry
+        prev ()
+        {
+            if (!m_entry_sp)
+                return ListEntry();
+            return ListEntry(m_entry_sp->GetChildAtIndexPath({0,0}));
+        }
+
+        uint64_t
+        value () const
+        {
+            if (!m_entry_sp)
+                return 0;
+            return m_entry_sp->GetValueAsUnsigned(0);
+        }
+
+        bool
+        null()
+        {
+            return (value() == 0);
+        }
+
+        explicit operator bool ()
+        {
+            return GetEntry().get() != nullptr && null() == false;
+        }
+
+        ValueObjectSP
+        GetEntry ()
+        {
+            return m_entry_sp;
+        }
+
+        void
+        SetEntry (ValueObjectSP entry)
+        {
+            m_entry_sp = entry;
+        }
+
+        bool
+        operator == (const ListEntry& rhs) const
+        {
+            return value() == rhs.value();
+        }
+
+        bool
+        operator != (const ListEntry& rhs) const
+        {
+            return !(*this == rhs);
+        }
+
+    private:
+        ValueObjectSP m_entry_sp;
+    };
+    
+    class ListIterator
+    {
+    public:
+        ListIterator() = default;
+        ListIterator (ListEntry entry) : m_entry(entry) {}
+        ListIterator (ValueObjectSP entry) : m_entry(entry) {}
+        ListIterator (const ListIterator& rhs) : m_entry(rhs.m_entry) {}
+        ListIterator (ValueObject* entry) : m_entry(entry) {}
+        
+        ValueObjectSP
+        value ()
+        {
+            return m_entry.GetEntry();
+        }
+        
+        ValueObjectSP
+        advance (size_t count)
+        {
+            if (count == 0)
+                return m_entry.GetEntry();
+            if (count == 1)
+            {
+                next ();
+                return m_entry.GetEntry();
+            }
+            while (count > 0)
+            {
+                next ();
+                count--;
+                if (m_entry.null())
+                    return lldb::ValueObjectSP();
+            }
+            return m_entry.GetEntry();
+        }
+        
+        bool
+        operator == (const ListIterator& rhs) const
+        {
+            return (rhs.m_entry == m_entry);
+        }
+        
+    protected:
+        void
+        next ()
+        {
+            m_entry = m_entry.next();
+        }
+        
+        void
+        prev ()
+        {
+            m_entry = m_entry.prev();
+        }
+        
+    private:
+        ListEntry m_entry;
+    };
+
+} // end anonymous namespace
+
+namespace lldb_private {
+    namespace formatters {
+        class LibcxxStdListSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            LibcxxStdListSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~LibcxxStdListSyntheticFrontEnd() override = default;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+            
+        private:
+            bool
+            HasLoop(size_t count);
+            
+            size_t m_list_capping_size;
+            static const bool g_use_loop_detect = true;
+
+            size_t m_loop_detected; // The number of elements that have had loop detection run over them.
+            ListEntry m_slow_runner; // Used for loop detection
+            ListEntry m_fast_runner; // Used for loop detection
+
+            lldb::addr_t m_node_address;
+            ValueObject* m_head;
+            ValueObject* m_tail;
+            CompilerType m_element_type;
+            size_t m_count;
+            std::map<size_t,lldb::ValueObjectSP> m_children;
+            std::map<size_t, ListIterator> m_iterators;
+        };
+    } // namespace formatters
+} // namespace lldb_private
+
+lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::LibcxxStdListSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get()),
+m_list_capping_size(0),
+m_loop_detected(0),
+m_node_address(),
+m_head(NULL),
+m_tail(NULL),
+m_element_type(),
+m_count(UINT32_MAX),
+m_children(),
+m_iterators()
+{
+    if (valobj_sp)
+        Update();
+}
+
+bool
+lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::HasLoop(size_t count)
+{
+    if (g_use_loop_detect == false)
+        return false;
+    // don't bother checking for a loop if we won't actually need to jump nodes
+    if (m_count < 2)
+        return false;
+
+    if (m_loop_detected == 0)
+    {
+        // This is the first time we are being run (after the last update). Set up the loop
+        // invariant for the first element.
+        m_slow_runner = ListEntry(m_head).next();
+        m_fast_runner = m_slow_runner.next();
+        m_loop_detected = 1;
+    }
+
+    // Loop invariant:
+    // Loop detection has been run over the first m_loop_detected elements. If m_slow_runner ==
+    // m_fast_runner then the loop has been detected after m_loop_detected elements.
+    const size_t steps_to_run = std::min(count,m_count);
+    while (m_loop_detected < steps_to_run
+            && m_slow_runner
+            && m_fast_runner
+            && m_slow_runner != m_fast_runner) {
+
+        m_slow_runner = m_slow_runner.next();
+        m_fast_runner = m_fast_runner.next().next();
+        m_loop_detected++;
+    }
+    if (count <= m_loop_detected)
+        return false; // No loop in the first m_loop_detected elements.
+    if (!m_slow_runner || !m_fast_runner)
+        return false; // Reached the end of the list. Definitely no loops.
+    return m_slow_runner == m_fast_runner;
+}
+
+size_t
+lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::CalculateNumChildren ()
+{
+    if (m_count != UINT32_MAX)
+        return m_count;
+    if (!m_head || !m_tail || m_node_address == 0)
+        return 0;
+    ValueObjectSP size_alloc(m_backend.GetChildMemberWithName(ConstString("__size_alloc_"), true));
+    if (size_alloc)
+    {
+        ValueObjectSP first(size_alloc->GetChildMemberWithName(ConstString("__first_"), true));
+        if (first)
+        {
+            m_count = first->GetValueAsUnsigned(UINT32_MAX);
+        }
+    }
+    if (m_count != UINT32_MAX)
+    {
+        return m_count;
+    }
+    else
+    {
+        uint64_t next_val = m_head->GetValueAsUnsigned(0);
+        uint64_t prev_val = m_tail->GetValueAsUnsigned(0);
+        if (next_val == 0 || prev_val == 0)
+            return 0;
+        if (next_val == m_node_address)
+            return 0;
+        if (next_val == prev_val)
+            return 1;
+        uint64_t size = 2;
+        ListEntry current(m_head);
+        while (current.next() && current.next().value() != m_node_address)
+        {
+            size++;
+            current = current.next();
+            if (size > m_list_capping_size)
+                break;
+        }
+        return m_count = (size-1);
+    }
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    if (idx >= CalculateNumChildren())
+        return lldb::ValueObjectSP();
+    
+    if (!m_head || !m_tail || m_node_address == 0)
+        return lldb::ValueObjectSP();
+    
+    auto cached = m_children.find(idx);
+    if (cached != m_children.end())
+        return cached->second;
+    
+    if (HasLoop(idx+1))
+        return lldb::ValueObjectSP();
+    
+    size_t actual_advance = idx;
+    
+    ListIterator current(m_head);
+    if (idx > 0)
+    {
+        auto cached_iterator = m_iterators.find(idx-1);
+        if (cached_iterator != m_iterators.end())
+        {
+            current = cached_iterator->second;
+            actual_advance = 1;
+        }
+    }
+    
+    ValueObjectSP current_sp(current.advance(actual_advance));
+    if (!current_sp)
+        return lldb::ValueObjectSP();
+    
+    m_iterators[idx] = current;
+    
+    current_sp = current_sp->GetChildAtIndex(1, true); // get the __value_ child
+    if (!current_sp)
+        return lldb::ValueObjectSP();
+    // we need to copy current_sp into a new object otherwise we will end up with all items named __value_
+    DataExtractor data;
+    Error error;
+    current_sp->GetData(data, error);
+    if (error.Fail())
+        return lldb::ValueObjectSP();
+    
+    StreamString name;
+    name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+    return (m_children[idx] = CreateValueObjectFromData(name.GetData(), data, m_backend.GetExecutionContextRef(), m_element_type));
+}
+
+bool
+lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::Update()
+{
+    m_children.clear();
+    m_iterators.clear();
+    m_head = m_tail = NULL;
+    m_node_address = 0;
+    m_count = UINT32_MAX;
+    m_loop_detected = 0;
+    m_slow_runner.SetEntry(nullptr);
+    m_fast_runner.SetEntry(nullptr);
+
+    Error err;
+    ValueObjectSP backend_addr(m_backend.AddressOf(err));
+    m_list_capping_size = 0;
+    if (m_backend.GetTargetSP())
+        m_list_capping_size = m_backend.GetTargetSP()->GetMaximumNumberOfChildrenToDisplay();
+    if (m_list_capping_size == 0)
+        m_list_capping_size = 255;
+    if (err.Fail() || backend_addr.get() == NULL)
+        return false;
+    m_node_address = backend_addr->GetValueAsUnsigned(0);
+    if (!m_node_address || m_node_address == LLDB_INVALID_ADDRESS)
+        return false;
+    ValueObjectSP impl_sp(m_backend.GetChildMemberWithName(ConstString("__end_"),true));
+    if (!impl_sp)
+        return false;
+    CompilerType list_type = m_backend.GetCompilerType();
+    if (list_type.IsReferenceType())
+        list_type = list_type.GetNonReferenceType();
+
+    if (list_type.GetNumTemplateArguments() == 0)
+        return false;
+    lldb::TemplateArgumentKind kind;
+    m_element_type = list_type.GetTemplateArgument(0, kind);
+    m_head = impl_sp->GetChildMemberWithName(ConstString("__next_"), true).get();
+    m_tail = impl_sp->GetChildMemberWithName(ConstString("__prev_"), true).get();
+    return false;
+}
+
+bool
+lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+size_t
+lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    return ExtractIndexFromString(name.GetCString());
+}
+
+SyntheticChildrenFrontEnd*
+lldb_private::formatters::LibcxxStdListSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    if (!valobj_sp)
+        return NULL;
+    return (new LibcxxStdListSyntheticFrontEnd(valobj_sp));
+}
diff --git a/source/Plugins/Language/CPlusPlus/LibCxxMap.cpp b/source/Plugins/Language/CPlusPlus/LibCxxMap.cpp
new file mode 100644
index 0000000000000..aa82557edb020
--- /dev/null
+++ b/source/Plugins/Language/CPlusPlus/LibCxxMap.cpp
@@ -0,0 +1,478 @@
+//===-- LibCxxList.cpp ------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "LibCxx.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/Target.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+class MapEntry
+{
+public:
+    MapEntry() = default;
+    explicit MapEntry (ValueObjectSP entry_sp) : m_entry_sp(entry_sp) {}
+    MapEntry (const MapEntry& rhs) : m_entry_sp(rhs.m_entry_sp) {}
+    explicit MapEntry (ValueObject* entry) : m_entry_sp(entry ? entry->GetSP() : ValueObjectSP()) {}
+    
+    ValueObjectSP
+    left () const
+    {
+        static ConstString g_left("__left_");
+        if (!m_entry_sp)
+            return m_entry_sp;
+        return m_entry_sp->GetChildMemberWithName(g_left, true);
+    }
+    
+    ValueObjectSP
+    right () const
+    {
+        static ConstString g_right("__right_");
+        if (!m_entry_sp)
+            return m_entry_sp;
+        return m_entry_sp->GetChildMemberWithName(g_right, true);
+    }
+    
+    ValueObjectSP
+    parent () const
+    {
+        static ConstString g_parent("__parent_");
+        if (!m_entry_sp)
+            return m_entry_sp;
+        return m_entry_sp->GetChildMemberWithName(g_parent, true);
+    }
+    
+    uint64_t
+    value () const
+    {
+        if (!m_entry_sp)
+            return 0;
+        return m_entry_sp->GetValueAsUnsigned(0);
+    }
+    
+    bool
+    error () const
+    {
+        if (!m_entry_sp)
+            return true;
+        return m_entry_sp->GetError().Fail();
+    }
+    
+    bool
+    null() const
+    {
+        return (value() == 0);
+    }
+    
+    ValueObjectSP
+    GetEntry () const
+    {
+        return m_entry_sp;
+    }
+    
+    void
+    SetEntry (ValueObjectSP entry)
+    {
+        m_entry_sp = entry;
+    }
+    
+    bool
+    operator == (const MapEntry& rhs) const
+    {
+        return (rhs.m_entry_sp.get() == m_entry_sp.get());
+    }
+    
+private:
+    ValueObjectSP m_entry_sp;
+};
+
+class MapIterator
+{
+public:
+    MapIterator() = default;
+    MapIterator (MapEntry entry, size_t depth = 0) : m_entry(entry), m_max_depth(depth), m_error(false) {}
+    MapIterator (ValueObjectSP entry, size_t depth = 0) : m_entry(entry), m_max_depth(depth), m_error(false) {}
+    MapIterator (const MapIterator& rhs) : m_entry(rhs.m_entry),m_max_depth(rhs.m_max_depth), m_error(false) {}
+    MapIterator (ValueObject* entry, size_t depth = 0) : m_entry(entry), m_max_depth(depth), m_error(false) {}
+    
+    ValueObjectSP
+    value ()
+    {
+        return m_entry.GetEntry();
+    }
+    
+    ValueObjectSP
+    advance (size_t count)
+    {
+        ValueObjectSP fail(nullptr);
+        if (m_error)
+            return fail;
+        size_t steps = 0;
+        while (count > 0)
+        {
+            next();
+            count--, steps++;
+            if (m_error ||
+                m_entry.null() ||
+                (steps > m_max_depth))
+                return fail;
+        }
+        return m_entry.GetEntry();
+    }
+    
+protected:
+    void
+    next ()
+    {
+        if (m_entry.null())
+            return;
+        MapEntry right(m_entry.right());
+        if (right.null() == false)
+        {
+            m_entry = tree_min(std::move(right));
+            return;
+        }
+        size_t steps = 0;
+        while (!is_left_child(m_entry))
+        {
+            if (m_entry.error())
+            {
+                m_error = true;
+                return;
+            }
+            m_entry.SetEntry(m_entry.parent());
+            steps++;
+            if (steps > m_max_depth)
+            {
+                m_entry = MapEntry();
+                return;
+            }
+        }
+        m_entry = MapEntry(m_entry.parent());
+    }
+    
+private:
+    MapEntry
+    tree_min (MapEntry&& x)
+    {
+        if (x.null())
+            return MapEntry();
+        MapEntry left(x.left());
+        size_t steps = 0;
+        while (left.null() == false)
+        {
+            if (left.error())
+            {
+                m_error = true;
+                return MapEntry();
+            }
+            x = left;
+            left.SetEntry(x.left());
+            steps++;
+            if (steps > m_max_depth)
+                return MapEntry();
+        }
+        return x;
+    }
+    
+    bool
+    is_left_child (const MapEntry& x)
+    {
+        if (x.null())
+            return false;
+        MapEntry rhs(x.parent());
+        rhs.SetEntry(rhs.left());
+        return x.value() == rhs.value();
+    }
+    
+    MapEntry m_entry;
+    size_t m_max_depth;
+    bool m_error;
+};
+
+namespace lldb_private {
+    namespace formatters {
+        class LibcxxStdMapSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            LibcxxStdMapSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~LibcxxStdMapSyntheticFrontEnd() override = default;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+            
+        private:
+            bool
+            GetDataType();
+            
+            void
+            GetValueOffset (const lldb::ValueObjectSP& node);
+            
+            ValueObject* m_tree;
+            ValueObject* m_root_node;
+            CompilerType m_element_type;
+            uint32_t m_skip_size;
+            size_t m_count;
+            std::map<size_t, lldb::ValueObjectSP> m_children;
+            std::map<size_t, MapIterator> m_iterators;
+        };
+    } // namespace formatters
+} // namespace lldb_private
+
+lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::LibcxxStdMapSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get()),
+m_tree(NULL),
+m_root_node(NULL),
+m_element_type(),
+m_skip_size(UINT32_MAX),
+m_count(UINT32_MAX),
+m_children(),
+m_iterators()
+{
+    if (valobj_sp)
+        Update();
+}
+
+size_t
+lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::CalculateNumChildren ()
+{
+    static ConstString g___pair3_("__pair3_");
+    static ConstString g___first_("__first_");
+
+    if (m_count != UINT32_MAX)
+        return m_count;
+    if (m_tree == NULL)
+        return 0;
+    ValueObjectSP m_item(m_tree->GetChildMemberWithName(g___pair3_, true));
+    if (!m_item)
+        return 0;
+    m_item = m_item->GetChildMemberWithName(g___first_, true);
+    if (!m_item)
+        return 0;
+    m_count = m_item->GetValueAsUnsigned(0);
+    return m_count;
+}
+
+bool
+lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::GetDataType()
+{
+    static ConstString g___value_("__value_");
+    
+    if (m_element_type.GetOpaqueQualType() && m_element_type.GetTypeSystem())
+        return true;
+    m_element_type.Clear();
+    ValueObjectSP deref;
+    Error error;
+    deref = m_root_node->Dereference(error);
+    if (!deref || error.Fail())
+        return false;
+    deref = deref->GetChildMemberWithName(g___value_, true);
+    if (!deref)
+        return false;
+    m_element_type = deref->GetCompilerType();
+    return true;
+}
+
+void
+lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::GetValueOffset (const lldb::ValueObjectSP& node)
+{
+    if (m_skip_size != UINT32_MAX)
+        return;
+    if (!node)
+        return;
+    CompilerType node_type(node->GetCompilerType());
+    uint64_t bit_offset;
+    if (node_type.GetIndexOfFieldWithName("__value_", NULL, &bit_offset) == UINT32_MAX)
+        return;
+    m_skip_size = bit_offset / 8u;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    static ConstString g___cc("__cc");
+    static ConstString g___nc("__nc");
+    static ConstString g___value_("__value_");
+
+    
+    if (idx >= CalculateNumChildren())
+        return lldb::ValueObjectSP();
+    if (m_tree == NULL || m_root_node == NULL)
+        return lldb::ValueObjectSP();
+    
+    auto cached = m_children.find(idx);
+    if (cached != m_children.end())
+        return cached->second;
+
+    MapIterator iterator(m_root_node, CalculateNumChildren());
+    
+    const bool need_to_skip = (idx > 0);
+    size_t actual_advancde = idx;
+    if (need_to_skip)
+    {
+        auto cached_iterator = m_iterators.find(idx-1);
+        if (cached_iterator != m_iterators.end())
+        {
+            iterator = cached_iterator->second;
+            actual_advancde = 1;
+        }
+    }
+    
+    ValueObjectSP iterated_sp(iterator.advance(actual_advancde));
+    if (iterated_sp.get() == NULL)
+    {
+        // this tree is garbage - stop
+        m_tree = NULL; // this will stop all future searches until an Update() happens
+        return iterated_sp;
+    }
+    if (GetDataType())
+    {
+        if (!need_to_skip)
+        {
+            Error error;
+            iterated_sp = iterated_sp->Dereference(error);
+            if (!iterated_sp || error.Fail())
+            {
+                m_tree = NULL;
+                return lldb::ValueObjectSP();
+            }
+            GetValueOffset(iterated_sp);
+            iterated_sp = iterated_sp->GetChildMemberWithName(g___value_, true);
+            if (!iterated_sp)
+            {
+                m_tree = NULL;
+                return lldb::ValueObjectSP();
+            }
+        }
+        else
+        {
+            // because of the way our debug info is made, we need to read item 0 first
+            // so that we can cache information used to generate other elements
+            if (m_skip_size == UINT32_MAX)
+                GetChildAtIndex(0);
+            if (m_skip_size == UINT32_MAX)
+            {
+                m_tree = NULL;
+                return lldb::ValueObjectSP();
+            }
+            iterated_sp = iterated_sp->GetSyntheticChildAtOffset(m_skip_size, m_element_type, true);
+            if (!iterated_sp)
+            {
+                m_tree = NULL;
+                return lldb::ValueObjectSP();
+            }
+        }
+    }
+    else
+    {
+        m_tree = NULL;
+        return lldb::ValueObjectSP();
+    }
+    // at this point we have a valid 
+    // we need to copy current_sp into a new object otherwise we will end up with all items named __value_
+    DataExtractor data;
+    Error error;
+    iterated_sp->GetData(data, error);
+    if (error.Fail())
+    {
+        m_tree = NULL;
+        return lldb::ValueObjectSP();
+    }
+    StreamString name;
+    name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+    auto potential_child_sp = CreateValueObjectFromData(name.GetData(), data, m_backend.GetExecutionContextRef(), m_element_type);
+    if (potential_child_sp)
+    {
+        switch (potential_child_sp->GetNumChildren())
+        {
+            case 1:
+            {
+                auto child0_sp = potential_child_sp->GetChildAtIndex(0, true);
+                if (child0_sp && child0_sp->GetName() == g___cc)
+                    potential_child_sp = child0_sp;
+                break;
+            }
+            case 2:
+            {
+                auto child0_sp = potential_child_sp->GetChildAtIndex(0, true);
+                auto child1_sp = potential_child_sp->GetChildAtIndex(1, true);
+                if (child0_sp && child0_sp->GetName() == g___cc &&
+                    child1_sp && child1_sp->GetName() == g___nc)
+                    potential_child_sp = child0_sp;
+                break;
+            }
+        }
+        potential_child_sp->SetName(ConstString(name.GetData()));
+    }
+    m_iterators[idx] = iterator;
+    return (m_children[idx] = potential_child_sp);
+}
+
+bool
+lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::Update()
+{
+    static ConstString g___tree_("__tree_");
+    static ConstString g___begin_node_("__begin_node_");
+    m_count = UINT32_MAX;
+    m_tree = m_root_node = NULL;
+    m_children.clear();
+    m_iterators.clear();
+    m_tree = m_backend.GetChildMemberWithName(g___tree_, true).get();
+    if (!m_tree)
+        return false;
+    m_root_node = m_tree->GetChildMemberWithName(g___begin_node_, true).get();
+    return false;
+}
+
+bool
+lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+size_t
+lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    return ExtractIndexFromString(name.GetCString());
+}
+
+SyntheticChildrenFrontEnd*
+lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    if (!valobj_sp)
+        return NULL;
+    return (new LibcxxStdMapSyntheticFrontEnd(valobj_sp));
+}
diff --git a/source/Plugins/Language/CPlusPlus/LibCxxUnorderedMap.cpp b/source/Plugins/Language/CPlusPlus/LibCxxUnorderedMap.cpp
new file mode 100644
index 0000000000000..8ad806d52bce3
--- /dev/null
+++ b/source/Plugins/Language/CPlusPlus/LibCxxUnorderedMap.cpp
@@ -0,0 +1,172 @@
+//===-- LibCxxUnorderedMap.cpp ----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "LibCxx.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/Target.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+namespace lldb_private {
+    namespace formatters {
+        class LibcxxStdUnorderedMapSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            LibcxxStdUnorderedMapSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~LibcxxStdUnorderedMapSyntheticFrontEnd() override = default;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+
+        private:
+            ValueObject* m_tree;
+            size_t m_num_elements;
+            ValueObject* m_next_element;
+            std::map<size_t,lldb::ValueObjectSP> m_children;
+            std::vector<std::pair<ValueObject*, uint64_t> > m_elements_cache;
+        };
+    } // namespace formatters
+} // namespace lldb_private
+
+lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEnd::LibcxxStdUnorderedMapSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get()),
+m_tree(NULL),
+m_num_elements(0),
+m_next_element(nullptr),
+m_children(),
+m_elements_cache()
+{
+    if (valobj_sp)
+        Update();
+}
+
+size_t
+lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEnd::CalculateNumChildren ()
+{
+    if (m_num_elements != UINT32_MAX)
+        return m_num_elements;
+    return 0;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    if (idx >= CalculateNumChildren())
+        return lldb::ValueObjectSP();
+    if (m_tree == NULL)
+        return lldb::ValueObjectSP();
+    
+    auto cached = m_children.find(idx);
+    if (cached != m_children.end())
+        return cached->second;
+    
+    while (idx >= m_elements_cache.size())
+    {
+        if (m_next_element == nullptr)
+            return lldb::ValueObjectSP();
+        
+        Error error;
+        ValueObjectSP node_sp = m_next_element->Dereference(error);
+        if (!node_sp || error.Fail())
+            return lldb::ValueObjectSP();
+        
+        ValueObjectSP value_sp = node_sp->GetChildMemberWithName(ConstString("__value_"), true);
+        ValueObjectSP hash_sp = node_sp->GetChildMemberWithName(ConstString("__hash_"), true);
+        if (!hash_sp || !value_sp)
+            return lldb::ValueObjectSP();
+        m_elements_cache.push_back({value_sp.get(),hash_sp->GetValueAsUnsigned(0)});
+        m_next_element = node_sp->GetChildMemberWithName(ConstString("__next_"),true).get();
+        if (!m_next_element || m_next_element->GetValueAsUnsigned(0) == 0)
+            m_next_element = nullptr;
+    }
+    
+    std::pair<ValueObject*, uint64_t> val_hash = m_elements_cache[idx];
+    if (!val_hash.first)
+        return lldb::ValueObjectSP();
+    StreamString stream;
+    stream.Printf("[%" PRIu64 "]", (uint64_t)idx);
+    DataExtractor data;
+    Error error;
+    val_hash.first->GetData(data, error);
+    if (error.Fail())
+        return lldb::ValueObjectSP();
+    const bool thread_and_frame_only_if_stopped = true;
+    ExecutionContext exe_ctx = val_hash.first->GetExecutionContextRef().Lock(thread_and_frame_only_if_stopped);
+    return val_hash.first->CreateValueObjectFromData(stream.GetData(),
+                                                     data,
+                                                     exe_ctx,
+                                                     val_hash.first->GetCompilerType());
+}
+
+bool
+lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEnd::Update()
+{
+    m_num_elements = UINT32_MAX;
+    m_next_element = nullptr;
+    m_elements_cache.clear();
+    m_children.clear();
+    ValueObjectSP table_sp = m_backend.GetChildMemberWithName(ConstString("__table_"), true);
+    if (!table_sp)
+        return false;
+    ValueObjectSP num_elements_sp = table_sp->GetChildAtNamePath({ConstString("__p2_"),ConstString("__first_")});
+    if (!num_elements_sp)
+        return false;
+    m_num_elements = num_elements_sp->GetValueAsUnsigned(0);
+    m_tree = table_sp->GetChildAtNamePath({ConstString("__p1_"),ConstString("__first_"),ConstString("__next_")}).get();
+    if (m_num_elements > 0)
+        m_next_element = table_sp->GetChildAtNamePath({ConstString("__p1_"),ConstString("__first_"),ConstString("__next_")}).get();
+    return false;
+}
+
+bool
+lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+size_t
+lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    return ExtractIndexFromString(name.GetCString());
+}
+
+SyntheticChildrenFrontEnd*
+lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    if (!valobj_sp)
+        return NULL;
+    return (new LibcxxStdUnorderedMapSyntheticFrontEnd(valobj_sp));
+}
diff --git a/source/Plugins/Language/CPlusPlus/LibCxxVector.cpp b/source/Plugins/Language/CPlusPlus/LibCxxVector.cpp
new file mode 100644
index 0000000000000..9fb4f48e90907
--- /dev/null
+++ b/source/Plugins/Language/CPlusPlus/LibCxxVector.cpp
@@ -0,0 +1,159 @@
+//===-- LibCxxVector.cpp ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "LibCxx.h"
+
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+namespace lldb_private {
+    namespace formatters {
+        class LibcxxStdVectorSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            LibcxxStdVectorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~LibcxxStdVectorSyntheticFrontEnd() override;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+
+        private:
+            ValueObject* m_start;
+            ValueObject* m_finish;
+            CompilerType m_element_type;
+            uint32_t m_element_size;
+            std::map<size_t,lldb::ValueObjectSP> m_children;
+        };
+    } // namespace formatters
+} // namespace lldb_private
+
+lldb_private::formatters::LibcxxStdVectorSyntheticFrontEnd::LibcxxStdVectorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get()),
+m_start(NULL),
+m_finish(NULL),
+m_element_type(),
+m_element_size(0),
+m_children()
+{
+    if (valobj_sp)
+        Update();
+}
+
+lldb_private::formatters::LibcxxStdVectorSyntheticFrontEnd::~LibcxxStdVectorSyntheticFrontEnd()
+{
+    // these need to stay around because they are child objects who will follow their parent's life cycle
+    // delete m_start;
+    // delete m_finish;
+}
+
+size_t
+lldb_private::formatters::LibcxxStdVectorSyntheticFrontEnd::CalculateNumChildren ()
+{
+    if (!m_start || !m_finish)
+        return 0;
+    uint64_t start_val = m_start->GetValueAsUnsigned(0);
+    uint64_t finish_val = m_finish->GetValueAsUnsigned(0);
+    
+    if (start_val == 0 || finish_val == 0)
+        return 0;
+    
+    if (start_val >= finish_val)
+        return 0;
+    
+    size_t num_children = (finish_val - start_val);
+    if (num_children % m_element_size)
+        return 0;
+    return num_children/m_element_size;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::LibcxxStdVectorSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    if (!m_start || !m_finish)
+        return lldb::ValueObjectSP();
+    
+    auto cached = m_children.find(idx);
+    if (cached != m_children.end())
+        return cached->second;
+    
+    uint64_t offset = idx * m_element_size;
+    offset = offset + m_start->GetValueAsUnsigned(0);
+    StreamString name;
+    name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+    ValueObjectSP child_sp = CreateValueObjectFromAddress(name.GetData(), offset, m_backend.GetExecutionContextRef(), m_element_type);
+    m_children[idx] = child_sp;
+    return child_sp;
+}
+
+bool
+lldb_private::formatters::LibcxxStdVectorSyntheticFrontEnd::Update()
+{
+    m_start = m_finish = NULL;
+    m_children.clear();
+    ValueObjectSP data_type_finder_sp(m_backend.GetChildMemberWithName(ConstString("__end_cap_"),true));
+    if (!data_type_finder_sp)
+        return false;
+    data_type_finder_sp = data_type_finder_sp->GetChildMemberWithName(ConstString("__first_"),true);
+    if (!data_type_finder_sp)
+        return false;
+    m_element_type = data_type_finder_sp->GetCompilerType().GetPointeeType();
+    m_element_size = m_element_type.GetByteSize(nullptr);
+    
+    if (m_element_size > 0)
+    {
+        // store raw pointers or end up with a circular dependency
+        m_start = m_backend.GetChildMemberWithName(ConstString("__begin_"),true).get();
+        m_finish = m_backend.GetChildMemberWithName(ConstString("__end_"),true).get();
+    }
+    return false;
+}
+
+bool
+lldb_private::formatters::LibcxxStdVectorSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+size_t
+lldb_private::formatters::LibcxxStdVectorSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    if (!m_start || !m_finish)
+        return UINT32_MAX;
+    return ExtractIndexFromString(name.GetCString());
+}
+
+lldb_private::SyntheticChildrenFrontEnd*
+lldb_private::formatters::LibcxxStdVectorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    if (!valobj_sp)
+        return NULL;
+    return (new LibcxxStdVectorSyntheticFrontEnd(valobj_sp));
+}
diff --git a/source/Plugins/Language/CPlusPlus/LibStdcpp.cpp b/source/Plugins/Language/CPlusPlus/LibStdcpp.cpp
new file mode 100644
index 0000000000000..ed89c5c84ea3a
--- /dev/null
+++ b/source/Plugins/Language/CPlusPlus/LibStdcpp.cpp
@@ -0,0 +1,373 @@
+//===-- LibStdcpp.cpp ---------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "LibStdcpp.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/StringPrinter.h"
+#include "lldb/DataFormatters/VectorIterator.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/Target.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+class LibstdcppMapIteratorSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+{
+public:
+    LibstdcppMapIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+    
+    size_t
+    CalculateNumChildren() override;
+    
+    lldb::ValueObjectSP
+    GetChildAtIndex(size_t idx) override;
+    
+    bool
+    Update() override;
+    
+    bool
+    MightHaveChildren() override;
+    
+    size_t
+    GetIndexOfChildWithName (const ConstString &name) override;
+    
+    ~LibstdcppMapIteratorSyntheticFrontEnd() override;
+    
+private:
+    ExecutionContextRef m_exe_ctx_ref;
+    lldb::addr_t m_pair_address;
+    CompilerType m_pair_type;
+    EvaluateExpressionOptions m_options;
+    lldb::ValueObjectSP m_pair_sp;
+};
+
+/*
+ (std::_Rb_tree_iterator<std::pair<const int, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) ibeg = {
+ (_Base_ptr) _M_node = 0x0000000100103910 {
+ (std::_Rb_tree_color) _M_color = _S_black
+ (std::_Rb_tree_node_base::_Base_ptr) _M_parent = 0x00000001001038c0
+ (std::_Rb_tree_node_base::_Base_ptr) _M_left = 0x0000000000000000
+ (std::_Rb_tree_node_base::_Base_ptr) _M_right = 0x0000000000000000
+ }
+ }
+ */
+
+LibstdcppMapIteratorSyntheticFrontEnd::LibstdcppMapIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+    SyntheticChildrenFrontEnd(*valobj_sp.get()),
+    m_exe_ctx_ref(),
+    m_pair_address(0),
+    m_pair_type(),
+    m_options(),
+    m_pair_sp()
+{
+    if (valobj_sp)
+        Update();
+    m_options.SetCoerceToId(false);
+    m_options.SetUnwindOnError(true);
+    m_options.SetKeepInMemory(true);
+    m_options.SetUseDynamic(lldb::eDynamicCanRunTarget);
+}
+
+bool
+LibstdcppMapIteratorSyntheticFrontEnd::Update()
+{
+    ValueObjectSP valobj_sp = m_backend.GetSP();
+    if (!valobj_sp)
+        return false;
+    
+    TargetSP target_sp(valobj_sp->GetTargetSP());
+    
+    if (!target_sp)
+        return false;
+    
+    bool is_64bit = (target_sp->GetArchitecture().GetAddressByteSize() == 8);
+    
+    if (!valobj_sp)
+        return false;
+    m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
+    
+    ValueObjectSP _M_node_sp(valobj_sp->GetChildMemberWithName(ConstString("_M_node"), true));
+    if (!_M_node_sp)
+        return false;
+    
+    m_pair_address = _M_node_sp->GetValueAsUnsigned(0);
+    if (m_pair_address == 0)
+        return false;
+    
+    m_pair_address += (is_64bit ? 32 : 16);
+    
+    CompilerType my_type(valobj_sp->GetCompilerType());
+    if (my_type.GetNumTemplateArguments() >= 1)
+    {
+        TemplateArgumentKind kind;
+        CompilerType pair_type = my_type.GetTemplateArgument(0, kind);
+        if (kind != eTemplateArgumentKindType && kind != eTemplateArgumentKindTemplate && kind != eTemplateArgumentKindTemplateExpansion)
+            return false;
+        m_pair_type = pair_type;
+    }
+    else
+        return false;
+    
+    return true;
+}
+
+size_t
+LibstdcppMapIteratorSyntheticFrontEnd::CalculateNumChildren ()
+{
+    return 2;
+}
+
+lldb::ValueObjectSP
+LibstdcppMapIteratorSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    if (m_pair_address != 0 && m_pair_type)
+    {
+        if (!m_pair_sp)
+            m_pair_sp = CreateValueObjectFromAddress("pair", m_pair_address, m_exe_ctx_ref, m_pair_type);
+        if (m_pair_sp)
+            return m_pair_sp->GetChildAtIndex(idx, true);
+    }
+    return lldb::ValueObjectSP();
+}
+
+bool
+LibstdcppMapIteratorSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+size_t
+LibstdcppMapIteratorSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    if (name == ConstString("first"))
+        return 0;
+    if (name == ConstString("second"))
+        return 1;
+    return UINT32_MAX;
+}
+
+LibstdcppMapIteratorSyntheticFrontEnd::~LibstdcppMapIteratorSyntheticFrontEnd ()
+{}
+
+SyntheticChildrenFrontEnd*
+lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    if (!valobj_sp)
+        return NULL;
+    return (new LibstdcppMapIteratorSyntheticFrontEnd(valobj_sp));
+}
+
+/*
+ (lldb) fr var ibeg --ptr-depth 1
+ (__gnu_cxx::__normal_iterator<int *, std::vector<int, std::allocator<int> > >) ibeg = {
+ _M_current = 0x00000001001037a0 {
+ *_M_current = 1
+ }
+ }
+ */
+
+SyntheticChildrenFrontEnd*
+lldb_private::formatters::LibStdcppVectorIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    static ConstString g_item_name;
+    if (!g_item_name)
+        g_item_name.SetCString("_M_current");
+    if (!valobj_sp)
+        return NULL;
+    return (new VectorIteratorSyntheticFrontEnd(valobj_sp,g_item_name));
+}
+
+lldb_private::formatters::VectorIteratorSyntheticFrontEnd::VectorIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp,
+                                                                                            ConstString item_name) :
+SyntheticChildrenFrontEnd(*valobj_sp.get()),
+m_exe_ctx_ref(),
+m_item_name(item_name),
+m_item_sp()
+{
+    if (valobj_sp)
+        Update();
+}
+
+bool
+lldb_private::formatters::VectorIteratorSyntheticFrontEnd::Update()
+{
+    m_item_sp.reset();
+    
+    ValueObjectSP valobj_sp = m_backend.GetSP();
+    if (!valobj_sp)
+        return false;
+    
+    if (!valobj_sp)
+        return false;
+    
+    ValueObjectSP item_ptr(valobj_sp->GetChildMemberWithName(m_item_name,true));
+    if (!item_ptr)
+        return false;
+    if (item_ptr->GetValueAsUnsigned(0) == 0)
+        return false;
+    Error err;
+    m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
+    m_item_sp = CreateValueObjectFromAddress("item", item_ptr->GetValueAsUnsigned(0), m_exe_ctx_ref, item_ptr->GetCompilerType().GetPointeeType());
+    if (err.Fail())
+        m_item_sp.reset();
+    return false;
+}
+
+size_t
+lldb_private::formatters::VectorIteratorSyntheticFrontEnd::CalculateNumChildren ()
+{
+    return 1;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::VectorIteratorSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    if (idx == 0)
+        return m_item_sp;
+    return lldb::ValueObjectSP();
+}
+
+bool
+lldb_private::formatters::VectorIteratorSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+size_t
+lldb_private::formatters::VectorIteratorSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    if (name == ConstString("item"))
+        return 0;
+    return UINT32_MAX;
+}
+
+lldb_private::formatters::VectorIteratorSyntheticFrontEnd::~VectorIteratorSyntheticFrontEnd ()
+{
+}
+
+bool
+lldb_private::formatters::LibStdcppStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    const bool scalar_is_load_addr = true;
+    AddressType addr_type;
+    lldb::addr_t addr_of_string = valobj.GetAddressOf(scalar_is_load_addr, &addr_type);
+    if (addr_of_string != LLDB_INVALID_ADDRESS)
+    {
+        switch (addr_type)
+        {
+            case eAddressTypeLoad:
+            {
+                ProcessSP process_sp(valobj.GetProcessSP());
+                if (!process_sp)
+                    return false;
+
+                StringPrinter::ReadStringAndDumpToStreamOptions options(valobj);
+                Error error;
+                lldb::addr_t addr_of_data = process_sp->ReadPointerFromMemory(addr_of_string, error);
+                if (error.Fail() || addr_of_data == 0 || addr_of_data == LLDB_INVALID_ADDRESS)
+                    return false;
+                options.SetLocation(addr_of_data);
+                options.SetProcessSP(process_sp);
+                options.SetStream(&stream);
+                options.SetNeedsZeroTermination(false);
+                options.SetBinaryZeroIsTerminator(true);
+                lldb::addr_t size_of_data = process_sp->ReadPointerFromMemory(addr_of_string + process_sp->GetAddressByteSize(), error);
+                if (error.Fail())
+                    return false;
+                options.SetSourceSize(size_of_data);
+
+                if (!StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF8>(options))
+                {
+                    stream.Printf("Summary Unavailable");
+                    return true;
+                }
+                else
+                    return true;
+            }
+                break;
+            case eAddressTypeHost:
+                break;
+            case eAddressTypeInvalid:
+            case eAddressTypeFile:
+                break;
+        }
+    }
+    return false;
+}
+
+bool
+lldb_private::formatters::LibStdcppWStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    const bool scalar_is_load_addr = true;
+    AddressType addr_type;
+    lldb::addr_t addr_of_string = valobj.GetAddressOf(scalar_is_load_addr, &addr_type);
+    if (addr_of_string != LLDB_INVALID_ADDRESS)
+    {
+        switch (addr_type)
+        {
+            case eAddressTypeLoad:
+            {
+                ProcessSP process_sp(valobj.GetProcessSP());
+                if (!process_sp)
+                    return false;
+
+                CompilerType wchar_compiler_type = valobj.GetCompilerType().GetBasicTypeFromAST(lldb::eBasicTypeWChar);
+
+                if (!wchar_compiler_type)
+                    return false;
+
+                const uint32_t wchar_size = wchar_compiler_type.GetBitSize(nullptr); // Safe to pass NULL for exe_scope here
+
+                StringPrinter::ReadStringAndDumpToStreamOptions options(valobj);
+                Error error;
+                lldb::addr_t addr_of_data = process_sp->ReadPointerFromMemory(addr_of_string, error);
+                if (error.Fail() || addr_of_data == 0 || addr_of_data == LLDB_INVALID_ADDRESS)
+                    return false;
+                options.SetLocation(addr_of_data);
+                options.SetProcessSP(process_sp);
+                options.SetStream(&stream);
+                options.SetNeedsZeroTermination(false);
+                options.SetBinaryZeroIsTerminator(false);
+                lldb::addr_t size_of_data = process_sp->ReadPointerFromMemory(addr_of_string + process_sp->GetAddressByteSize(), error);
+                if (error.Fail())
+                    return false;
+                options.SetSourceSize(size_of_data);
+                options.SetPrefixToken("L");
+
+                switch (wchar_size)
+                {
+                    case 8:
+                        return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF8>(options);
+                    case 16:
+                        return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF16>(options);
+                    case 32:
+                        return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF32>(options);
+                    default:
+                        stream.Printf("size for wchar_t is not valid");
+                        return true;
+                }
+                return true;
+            }
+                break;
+            case eAddressTypeHost:
+                break;
+            case eAddressTypeInvalid:
+            case eAddressTypeFile:
+                break;
+        }
+    }
+    return false;
+}
diff --git a/source/Plugins/Language/CPlusPlus/LibStdcpp.h b/source/Plugins/Language/CPlusPlus/LibStdcpp.h
new file mode 100644
index 0000000000000..347856a1695c4
--- /dev/null
+++ b/source/Plugins/Language/CPlusPlus/LibStdcpp.h
@@ -0,0 +1,33 @@
+//===-- LibStdCpp.h ---------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_LibStdCpp_h_
+#define liblldb_LibStdCpp_h_
+
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/DataFormatters/TypeSummary.h"
+#include "lldb/DataFormatters/TypeSynthetic.h"
+
+namespace lldb_private {
+    namespace formatters
+    {
+        bool
+        LibStdcppStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // libcstdc++ c++11 std::string
+
+        bool
+        LibStdcppWStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options); // libcstdc++ c++11 std::wstring
+
+        SyntheticChildrenFrontEnd* LibstdcppMapIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+        
+        SyntheticChildrenFrontEnd* LibStdcppVectorIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+    } // namespace formatters
+} // namespace lldb_private
+
+#endif // liblldb_LibStdCpp_h_
diff --git a/source/Plugins/Language/Go/GoFormatterFunctions.cpp b/source/Plugins/Language/Go/GoFormatterFunctions.cpp
new file mode 100644
index 0000000000000..1d7cd76b97392
--- /dev/null
+++ b/source/Plugins/Language/Go/GoFormatterFunctions.cpp
@@ -0,0 +1,173 @@
+//===-- GoFormatterFunctions.cpp---------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+#include <map>
+
+// Other libraries and framework includes
+// Project includes
+#include "GoFormatterFunctions.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/DataFormatters/StringPrinter.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+namespace
+{
+class GoSliceSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+{
+  public:
+    GoSliceSyntheticFrontEnd(ValueObject &valobj)
+        : SyntheticChildrenFrontEnd(valobj)
+    {
+        Update();
+    }
+
+    ~GoSliceSyntheticFrontEnd() override = default;
+
+    size_t
+    CalculateNumChildren() override
+    {
+        return m_len;
+    }
+
+    lldb::ValueObjectSP
+    GetChildAtIndex(size_t idx) override
+    {
+        if (idx < m_len)
+        {
+            ValueObjectSP &cached = m_children[idx];
+            if (!cached)
+            {
+                StreamString idx_name;
+                idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+                lldb::addr_t object_at_idx = m_base_data_address;
+                object_at_idx += idx * m_type.GetByteSize(nullptr);
+                cached = CreateValueObjectFromAddress(idx_name.GetData(), object_at_idx,
+                                                      m_backend.GetExecutionContextRef(), m_type);
+            }
+            return cached;
+        }
+        return ValueObjectSP();
+    }
+
+    bool
+    Update() override
+    {
+        size_t old_count = m_len;
+
+        ConstString array_const_str("array");
+        ValueObjectSP array_sp = m_backend.GetChildMemberWithName(array_const_str, true);
+        if (!array_sp)
+        {
+            m_children.clear();
+            return old_count == 0;
+        }
+        m_type = array_sp->GetCompilerType().GetPointeeType();
+        m_base_data_address = array_sp->GetPointerValue();
+
+        ConstString len_const_str("len");
+        ValueObjectSP len_sp = m_backend.GetChildMemberWithName(len_const_str, true);
+        if (len_sp)
+        {
+            m_len = len_sp->GetValueAsUnsigned(0);
+            m_children.clear();
+        }
+
+        return old_count == m_len;
+    }
+
+    bool
+    MightHaveChildren() override
+    {
+        return true;
+    }
+
+    size_t
+    GetIndexOfChildWithName(const ConstString &name) override
+    {
+        return ExtractIndexFromString(name.AsCString());
+    }
+
+  private:
+    CompilerType m_type;
+    lldb::addr_t m_base_data_address;
+    size_t m_len;
+    std::map<size_t, lldb::ValueObjectSP> m_children;
+};
+
+} // anonymous namespace
+
+bool
+lldb_private::formatters::GoStringSummaryProvider(ValueObject &valobj, Stream &stream, const TypeSummaryOptions &opts)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+
+    if (valobj.IsPointerType())
+    {
+        Error err;
+        ValueObjectSP deref = valobj.Dereference(err);
+        if (!err.Success())
+            return false;
+        return GoStringSummaryProvider(*deref, stream, opts);
+    }
+
+    ConstString str_name("str");
+    ConstString len_name("len");
+
+    ValueObjectSP data_sp = valobj.GetChildMemberWithName(str_name, true);
+    ValueObjectSP len_sp = valobj.GetChildMemberWithName(len_name, true);
+    if (!data_sp || !len_sp)
+        return false;
+    bool success;
+    lldb::addr_t valobj_addr = data_sp->GetValueAsUnsigned(0, &success);
+
+    if (!success)
+        return false;
+
+    uint64_t length = len_sp->GetValueAsUnsigned(0);
+    if (length == 0)
+    {
+        stream.Printf("\"\"");
+        return true;
+    }
+
+    StringPrinter::ReadStringAndDumpToStreamOptions options(valobj);
+    options.SetLocation(valobj_addr);
+    options.SetProcessSP(process_sp);
+    options.SetStream(&stream);
+    options.SetSourceSize(length);
+    options.SetNeedsZeroTermination(false);
+    options.SetLanguage(eLanguageTypeGo);
+
+    if (!StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF8>(options))
+    {
+        stream.Printf("Summary Unavailable");
+        return true;
+    }
+
+    return true;
+}
+
+SyntheticChildrenFrontEnd *
+lldb_private::formatters::GoSliceSyntheticFrontEndCreator(CXXSyntheticChildren *, lldb::ValueObjectSP valobj_sp)
+{
+    if (!valobj_sp)
+        return nullptr;
+
+    lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
+    if (!process_sp)
+        return nullptr;
+    return new GoSliceSyntheticFrontEnd(*valobj_sp);
+}
diff --git a/source/Plugins/Language/Go/GoFormatterFunctions.h b/source/Plugins/Language/Go/GoFormatterFunctions.h
new file mode 100644
index 0000000000000..ae1eda0f0c541
--- /dev/null
+++ b/source/Plugins/Language/Go/GoFormatterFunctions.h
@@ -0,0 +1,43 @@
+//===-- GoFormatterFunctions.h-----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_GoFormatterFunctions_h_
+#define liblldb_GoFormatterFunctions_h_
+
+// C Includes
+#include <stdint.h>
+#include <time.h>
+
+// C++ Includes
+// Other libraries and framework includes
+#include "clang/AST/ASTContext.h"
+
+// Project includes
+#include "lldb/lldb-forward.h"
+
+#include "lldb/Core/ConstString.h"
+#include "lldb/DataFormatters/FormatClasses.h"
+#include "lldb/DataFormatters/TypeSynthetic.h"
+#include "lldb/Target/ExecutionContext.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "lldb/Target/Target.h"
+
+namespace lldb_private
+{
+namespace formatters
+{
+
+bool GoStringSummaryProvider(ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options);
+
+SyntheticChildrenFrontEnd *GoSliceSyntheticFrontEndCreator(CXXSyntheticChildren *, lldb::ValueObjectSP);
+
+} // namespace formatters
+} // namespace lldb_private
+
+#endif // liblldb_GoFormatterFunctions_h_
diff --git a/source/Plugins/Language/Go/GoLanguage.cpp b/source/Plugins/Language/Go/GoLanguage.cpp
new file mode 100644
index 0000000000000..ed010ffa4b2e0
--- /dev/null
+++ b/source/Plugins/Language/Go/GoLanguage.cpp
@@ -0,0 +1,146 @@
+//===-- GoLanguage.cpp ------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+#include <string.h>
+// C++ Includes
+#include <functional>
+#include <mutex>
+
+// Other libraries and framework includes
+#include "llvm/ADT/StringRef.h"
+
+// Project includes
+#include "GoLanguage.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/Symbol/GoASTContext.h"
+#include "Plugins/Language/Go/GoFormatterFunctions.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+void
+GoLanguage::Initialize()
+{
+    PluginManager::RegisterPlugin(GetPluginNameStatic(), "Go Language", CreateInstance);
+}
+
+void
+GoLanguage::Terminate()
+{
+    PluginManager::UnregisterPlugin(CreateInstance);
+}
+
+lldb_private::ConstString
+GoLanguage::GetPluginNameStatic()
+{
+    static ConstString g_name("Go");
+    return g_name;
+}
+
+//------------------------------------------------------------------
+// PluginInterface protocol
+//------------------------------------------------------------------
+lldb_private::ConstString
+GoLanguage::GetPluginName()
+{
+    return GetPluginNameStatic();
+}
+
+uint32_t
+GoLanguage::GetPluginVersion()
+{
+    return 1;
+}
+
+//------------------------------------------------------------------
+// Static Functions
+//------------------------------------------------------------------
+Language *
+GoLanguage::CreateInstance(lldb::LanguageType language)
+{
+    if (language == eLanguageTypeGo)
+        return new GoLanguage();
+    return nullptr;
+}
+
+HardcodedFormatters::HardcodedSummaryFinder
+GoLanguage::GetHardcodedSummaries()
+{
+    static std::once_flag g_initialize;
+    static HardcodedFormatters::HardcodedSummaryFinder g_formatters;
+
+    std::call_once(g_initialize, []() -> void
+                   {
+                       g_formatters.push_back(
+                           [](lldb_private::ValueObject &valobj, lldb::DynamicValueType,
+                              FormatManager &) -> TypeSummaryImpl::SharedPointer
+                           {
+                               static CXXFunctionSummaryFormat::SharedPointer formatter_sp(new CXXFunctionSummaryFormat(
+                                   TypeSummaryImpl::Flags().SetDontShowChildren(true),
+                                   lldb_private::formatters::GoStringSummaryProvider, "Go string summary provider"));
+                               if (GoASTContext::IsGoString(valobj.GetCompilerType()))
+                               {
+                                   return formatter_sp;
+                               }
+                               if (GoASTContext::IsGoString(valobj.GetCompilerType().GetPointeeType()))
+                               {
+                                   return formatter_sp;
+                               }
+                               return nullptr;
+                           });
+                       g_formatters.push_back(
+                           [](lldb_private::ValueObject &valobj, lldb::DynamicValueType,
+                              FormatManager &) -> TypeSummaryImpl::SharedPointer
+                           {
+                               static lldb::TypeSummaryImplSP formatter_sp(
+                                   new StringSummaryFormat(TypeSummaryImpl::Flags().SetHideItemNames(true),
+                                                           "(len ${var.len}, cap ${var.cap})"));
+                               if (GoASTContext::IsGoSlice(valobj.GetCompilerType()))
+                               {
+                                   return formatter_sp;
+                               }
+                               if (GoASTContext::IsGoSlice(valobj.GetCompilerType().GetPointeeType()))
+                               {
+                                   return formatter_sp;
+                               }
+                               return nullptr;
+                           });
+                   });
+    return g_formatters;
+}
+
+HardcodedFormatters::HardcodedSyntheticFinder
+GoLanguage::GetHardcodedSynthetics()
+{
+    static std::once_flag g_initialize;
+    static HardcodedFormatters::HardcodedSyntheticFinder g_formatters;
+
+    std::call_once(g_initialize, []() -> void
+                   {
+                       g_formatters.push_back(
+                           [](lldb_private::ValueObject &valobj, lldb::DynamicValueType,
+                              FormatManager &fmt_mgr) -> SyntheticChildren::SharedPointer
+                           {
+                               static CXXSyntheticChildren::SharedPointer formatter_sp(
+                                   new CXXSyntheticChildren(SyntheticChildren::Flags(), "slice synthetic children",
+                                                            lldb_private::formatters::GoSliceSyntheticFrontEndCreator));
+                               if (GoASTContext::IsGoSlice(valobj.GetCompilerType()))
+                               {
+                                   return formatter_sp;
+                               }
+                               return nullptr;
+                           });
+                   });
+
+    return g_formatters;
+}
diff --git a/source/Plugins/Language/Go/GoLanguage.h b/source/Plugins/Language/Go/GoLanguage.h
new file mode 100644
index 0000000000000..67dd04c2a22ee
--- /dev/null
+++ b/source/Plugins/Language/Go/GoLanguage.h
@@ -0,0 +1,66 @@
+//===-- GoLanguage.h --------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_GoLanguage_h_
+#define liblldb_GoLanguage_h_
+
+// C Includes
+// C++ Includes
+#include <vector>
+
+// Other libraries and framework includes
+#include "llvm/ADT/StringRef.h"
+
+// Project includes
+#include "lldb/lldb-private.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Target/Language.h"
+
+namespace lldb_private
+{
+
+class GoLanguage : public Language
+{
+  public:
+    GoLanguage() = default;
+
+    ~GoLanguage() override = default;
+
+    lldb::LanguageType
+    GetLanguageType() const override
+    {
+        return lldb::eLanguageTypeGo;
+    }
+
+    HardcodedFormatters::HardcodedSummaryFinder GetHardcodedSummaries() override;
+
+    HardcodedFormatters::HardcodedSyntheticFinder GetHardcodedSynthetics() override;
+
+    //------------------------------------------------------------------
+    // Static Functions
+    //------------------------------------------------------------------
+    static void Initialize();
+
+    static void Terminate();
+
+    static lldb_private::Language *CreateInstance(lldb::LanguageType language);
+
+    static lldb_private::ConstString GetPluginNameStatic();
+
+    //------------------------------------------------------------------
+    // PluginInterface protocol
+    //------------------------------------------------------------------
+    ConstString GetPluginName() override;
+
+    uint32_t GetPluginVersion() override;
+};
+
+} // namespace lldb_private
+
+#endif // liblldb_GoLanguage_h_
diff --git a/source/Plugins/Language/ObjC/CF.cpp b/source/Plugins/Language/ObjC/CF.cpp
new file mode 100644
index 0000000000000..614eb29a0f7a4
--- /dev/null
+++ b/source/Plugins/Language/ObjC/CF.cpp
@@ -0,0 +1,334 @@
+//===-- CF.cpp ----------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "CF.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/Language.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "lldb/Target/StackFrame.h"
+#include "lldb/Target/Target.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+bool
+lldb_private::formatters::CFAbsoluteTimeSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    time_t epoch = GetOSXEpoch();
+    epoch = epoch + (time_t)valobj.GetValueAsUnsigned(0);
+    tm *tm_date = localtime(&epoch);
+    if (!tm_date)
+        return false;
+    std::string buffer(1024,0);
+    if (strftime (&buffer[0], 1023, "%Z", tm_date) == 0)
+        return false;
+    stream.Printf("%04d-%02d-%02d %02d:%02d:%02d %s", tm_date->tm_year+1900, tm_date->tm_mon+1, tm_date->tm_mday, tm_date->tm_hour, tm_date->tm_min, tm_date->tm_sec, buffer.c_str());
+    return true;
+}
+
+bool
+lldb_private::formatters::CFBagSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    static ConstString g_TypeHint("CFBag");
+    
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    uint32_t count = 0;
+    
+    bool is_type_ok = false; // check to see if this is a CFBag we know about
+    if (descriptor->IsCFType())
+    {
+        ConstString type_name(valobj.GetTypeName());
+        if (type_name == ConstString("__CFBag") || type_name == ConstString("const struct __CFBag"))
+        {
+            if (valobj.IsPointerType())
+                is_type_ok = true;
+        }
+    }
+    
+    if (is_type_ok == false)
+    {
+        StackFrameSP frame_sp(valobj.GetFrameSP());
+        if (!frame_sp)
+            return false;
+        ValueObjectSP count_sp;
+        StreamString expr;
+        expr.Printf("(int)CFBagGetCount((void*)0x%" PRIx64 ")",valobj.GetPointerValue());
+        EvaluateExpressionOptions options;
+        options.SetResultIsInternal(true);
+        if (process_sp->GetTarget().EvaluateExpression(expr.GetData(), frame_sp.get(), count_sp, options) != eExpressionCompleted)
+            return false;
+        if (!count_sp)
+            return false;
+        count = count_sp->GetValueAsUnsigned(0);
+    }
+    else
+    {
+        uint32_t offset = 2*ptr_size+4 + valobj_addr;
+        Error error;
+        count = process_sp->ReadUnsignedIntegerFromMemory(offset, 4, 0, error);
+        if (error.Fail())
+            return false;
+    }
+    
+    std::string prefix,suffix;
+    if (Language* language = Language::FindPlugin(options.GetLanguage()))
+    {
+        if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
+        {
+            prefix.clear();
+            suffix.clear();
+        }
+    }
+    
+    stream.Printf("%s\"%u value%s\"%s",
+                  prefix.c_str(),
+                  count,(count == 1 ? "" : "s"),
+                  suffix.c_str());
+    return true;
+}
+
+bool
+lldb_private::formatters::CFBitVectorSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    uint32_t count = 0;
+    
+    bool is_type_ok = false; // check to see if this is a CFBag we know about
+    if (descriptor->IsCFType())
+    {
+        ConstString type_name(valobj.GetTypeName());
+        if (type_name == ConstString("__CFMutableBitVector") || type_name == ConstString("__CFBitVector") || type_name == ConstString("CFMutableBitVectorRef") || type_name == ConstString("CFBitVectorRef"))
+        {
+            if (valobj.IsPointerType())
+                is_type_ok = true;
+        }
+    }
+    
+    if (is_type_ok == false)
+        return false;
+    
+    Error error;
+    count = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr+2*ptr_size, ptr_size, 0, error);
+    if (error.Fail())
+        return false;
+    uint64_t num_bytes = count / 8 + ((count & 7) ? 1 : 0);
+    addr_t data_ptr = process_sp->ReadPointerFromMemory(valobj_addr+2*ptr_size+2*ptr_size, error);
+    if (error.Fail())
+        return false;
+    // make sure we do not try to read huge amounts of data
+    if (num_bytes > 1024)
+        num_bytes = 1024;
+    DataBufferSP buffer_sp(new DataBufferHeap(num_bytes,0));
+    num_bytes = process_sp->ReadMemory(data_ptr, buffer_sp->GetBytes(), num_bytes, error);
+    if (error.Fail() || num_bytes == 0)
+        return false;
+    uint8_t *bytes = buffer_sp->GetBytes();
+    for (uint64_t byte_idx = 0; byte_idx < num_bytes-1; byte_idx++)
+    {
+        uint8_t byte = bytes[byte_idx];
+        bool bit0 = (byte & 1) == 1;
+        bool bit1 = (byte & 2) == 2;
+        bool bit2 = (byte & 4) == 4;
+        bool bit3 = (byte & 8) == 8;
+        bool bit4 = (byte & 16) == 16;
+        bool bit5 = (byte & 32) == 32;
+        bool bit6 = (byte & 64) == 64;
+        bool bit7 = (byte & 128) == 128;
+        stream.Printf("%c%c%c%c %c%c%c%c ",
+                      (bit7 ? '1' : '0'),
+                      (bit6 ? '1' : '0'),
+                      (bit5 ? '1' : '0'),
+                      (bit4 ? '1' : '0'),
+                      (bit3 ? '1' : '0'),
+                      (bit2 ? '1' : '0'),
+                      (bit1 ? '1' : '0'),
+                      (bit0 ? '1' : '0'));
+        count -= 8;
+    }
+    {
+        // print the last byte ensuring we do not print spurious bits
+        uint8_t byte = bytes[num_bytes-1];
+        bool bit0 = (byte & 1) == 1;
+        bool bit1 = (byte & 2) == 2;
+        bool bit2 = (byte & 4) == 4;
+        bool bit3 = (byte & 8) == 8;
+        bool bit4 = (byte & 16) == 16;
+        bool bit5 = (byte & 32) == 32;
+        bool bit6 = (byte & 64) == 64;
+        bool bit7 = (byte & 128) == 128;
+        if (count)
+        {
+            stream.Printf("%c",bit7 ? '1' : '0');
+            count -= 1;
+        }
+        if (count)
+        {
+            stream.Printf("%c",bit6 ? '1' : '0');
+            count -= 1;
+        }
+        if (count)
+        {
+            stream.Printf("%c",bit5 ? '1' : '0');
+            count -= 1;
+        }
+        if (count)
+        {
+            stream.Printf("%c",bit4 ? '1' : '0');
+            count -= 1;
+        }
+        if (count)
+        {
+            stream.Printf("%c",bit3 ? '1' : '0');
+            count -= 1;
+        }
+        if (count)
+        {
+            stream.Printf("%c",bit2 ? '1' : '0');
+            count -= 1;
+        }
+        if (count)
+        {
+            stream.Printf("%c",bit1 ? '1' : '0');
+            count -= 1;
+        }
+        if (count)
+            stream.Printf("%c",bit0 ? '1' : '0');
+    }
+    return true;
+}
+
+bool
+lldb_private::formatters::CFBinaryHeapSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    static ConstString g_TypeHint("CFBinaryHeap");
+    
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    uint32_t count = 0;
+    
+    bool is_type_ok = false; // check to see if this is a CFBinaryHeap we know about
+    if (descriptor->IsCFType())
+    {
+        ConstString type_name(valobj.GetTypeName());
+        if (type_name == ConstString("__CFBinaryHeap") || type_name == ConstString("const struct __CFBinaryHeap"))
+        {
+            if (valobj.IsPointerType())
+                is_type_ok = true;
+        }
+    }
+    
+    if (is_type_ok == false)
+    {
+        StackFrameSP frame_sp(valobj.GetFrameSP());
+        if (!frame_sp)
+            return false;
+        ValueObjectSP count_sp;
+        StreamString expr;
+        expr.Printf("(int)CFBinaryHeapGetCount((void*)0x%" PRIx64 ")",valobj.GetPointerValue());
+        EvaluateExpressionOptions options;
+        options.SetResultIsInternal(true);
+        if (process_sp->GetTarget().EvaluateExpression(expr.GetData(), frame_sp.get(), count_sp, options) != eExpressionCompleted)
+            return false;
+        if (!count_sp)
+            return false;
+        count = count_sp->GetValueAsUnsigned(0);
+    }
+    else
+    {
+        uint32_t offset = 2*ptr_size;
+        Error error;
+        count = process_sp->ReadUnsignedIntegerFromMemory(offset, 4, 0, error);
+        if (error.Fail())
+            return false;
+    }
+    
+    std::string prefix,suffix;
+    if (Language* language = Language::FindPlugin(options.GetLanguage()))
+    {
+        if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
+        {
+            prefix.clear();
+            suffix.clear();
+        }
+    }
+    
+    stream.Printf("%s\"%u item%s\"%s",
+                  prefix.c_str(),
+                  count,(count == 1 ? "" : "s"),
+                  suffix.c_str());
+    return true;
+}
diff --git a/source/Plugins/Language/ObjC/CF.h b/source/Plugins/Language/ObjC/CF.h
new file mode 100644
index 0000000000000..4044f09f585e2
--- /dev/null
+++ b/source/Plugins/Language/ObjC/CF.h
@@ -0,0 +1,34 @@
+//===-- CF.h ---------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_CF_h_
+#define liblldb_CF_h_
+
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/DataFormatters/TypeSummary.h"
+
+namespace lldb_private {
+    namespace formatters
+    {
+        bool
+        CFBagSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        CFBinaryHeapSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        CFBitVectorSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        CFAbsoluteTimeSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+    } // namespace formatters
+} // namespace lldb_private
+
+#endif // liblldb_CF_h_
diff --git a/source/Plugins/Language/ObjC/Cocoa.cpp b/source/Plugins/Language/ObjC/Cocoa.cpp
new file mode 100644
index 0000000000000..aa6e476b61319
--- /dev/null
+++ b/source/Plugins/Language/ObjC/Cocoa.cpp
@@ -0,0 +1,967 @@
+//===-- Cocoa.cpp -----------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "Cocoa.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Mangled.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/DataFormatters/StringPrinter.h"
+#include "lldb/DataFormatters/TypeSummary.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/Language.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Utility/ProcessStructReader.h"
+
+#include "NSString.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+bool
+lldb_private::formatters::NSBundleSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    const char* class_name = descriptor->GetClassName().GetCString();
+    
+    if (!class_name || !*class_name)
+        return false;
+    
+    if (!strcmp(class_name,"NSBundle"))
+    {
+        uint64_t offset = 5 * ptr_size;
+        ValueObjectSP text(valobj.GetSyntheticChildAtOffset(offset, valobj.GetCompilerType().GetBasicTypeFromAST(lldb::eBasicTypeObjCID), true));
+        
+        StreamString summary_stream;
+        bool was_nsstring_ok = NSStringSummaryProvider(*text.get(), summary_stream, options);
+        if (was_nsstring_ok && summary_stream.GetSize() > 0)
+        {
+            stream.Printf("%s",summary_stream.GetData());
+            return true;
+        }
+    }
+    // this is either an unknown subclass or an NSBundle that comes from [NSBundle mainBundle]
+    // which is encoded differently and needs to be handled by running code
+    return ExtractSummaryFromObjCExpression(valobj, "NSString*", "bundlePath", stream, options.GetLanguage());
+}
+
+bool
+lldb_private::formatters::NSTimeZoneSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    const char* class_name = descriptor->GetClassName().GetCString();
+    
+    if (!class_name || !*class_name)
+        return false;
+    
+    if (!strcmp(class_name,"__NSTimeZone"))
+    {
+        uint64_t offset = ptr_size;
+        ValueObjectSP text(valobj.GetSyntheticChildAtOffset(offset, valobj.GetCompilerType(), true));
+        StreamString summary_stream;
+        bool was_nsstring_ok = NSStringSummaryProvider(*text.get(), summary_stream, options);
+        if (was_nsstring_ok && summary_stream.GetSize() > 0)
+        {
+            stream.Printf("%s",summary_stream.GetData());
+            return true;
+        }
+    }
+    return ExtractSummaryFromObjCExpression(valobj, "NSString*", "name", stream, options.GetLanguage());
+}
+
+bool
+lldb_private::formatters::NSNotificationSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    const char* class_name = descriptor->GetClassName().GetCString();
+    
+    if (!class_name || !*class_name)
+        return false;
+    
+    if (!strcmp(class_name,"NSConcreteNotification"))
+    {
+        uint64_t offset = ptr_size;
+        ValueObjectSP text(valobj.GetSyntheticChildAtOffset(offset, valobj.GetCompilerType(), true));
+        StreamString summary_stream;
+        bool was_nsstring_ok = NSStringSummaryProvider(*text.get(), summary_stream, options);
+        if (was_nsstring_ok && summary_stream.GetSize() > 0)
+        {
+            stream.Printf("%s",summary_stream.GetData());
+            return true;
+        }
+    }
+    // this is either an unknown subclass or an NSBundle that comes from [NSBundle mainBundle]
+    // which is encoded differently and needs to be handled by running code
+    return ExtractSummaryFromObjCExpression(valobj, "NSString*", "name", stream, options.GetLanguage());
+}
+
+bool
+lldb_private::formatters::NSMachPortSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    const char* class_name = descriptor->GetClassName().GetCString();
+    
+    if (!class_name || !*class_name)
+        return false;
+    
+    uint64_t port_number = 0;
+    
+    do
+    {
+        if (!strcmp(class_name,"NSMachPort"))
+        {
+            uint64_t offset = (ptr_size == 4 ? 12 : 20);
+            Error error;
+            port_number = process_sp->ReadUnsignedIntegerFromMemory(offset+valobj_addr, 4, 0, error);
+            if (error.Success())
+                break;
+        }
+        if (!ExtractValueFromObjCExpression(valobj, "int", "machPort", port_number))
+            return false;
+    } while (false);
+    
+    stream.Printf("mach port: %u",(uint32_t)(port_number & 0x00000000FFFFFFFF));
+    return true;
+}
+
+bool
+lldb_private::formatters::NSIndexSetSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    const char* class_name = descriptor->GetClassName().GetCString();
+    
+    if (!class_name || !*class_name)
+        return false;
+    
+    uint64_t count = 0;
+    
+    do {
+        if (!strcmp(class_name,"NSIndexSet") || !strcmp(class_name,"NSMutableIndexSet"))
+        {
+            Error error;
+            uint32_t mode = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr+ptr_size, 4, 0, error);
+            if (error.Fail())
+                return false;
+            // this means the set is empty - count = 0
+            if ((mode & 1) == 1)
+            {
+                count = 0;
+                break;
+            }
+            if ((mode & 2) == 2)
+                mode = 1; // this means the set only has one range
+            else
+                mode = 2; // this means the set has multiple ranges
+            if (mode == 1)
+            {
+                count = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr+3*ptr_size, ptr_size, 0, error);
+                if (error.Fail())
+                    return false;
+            }
+            else
+            {
+                // read a pointer to the data at 2*ptr_size
+                count = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr+2*ptr_size, ptr_size, 0, error);
+                if (error.Fail())
+                    return false;
+                // read the data at 2*ptr_size from the first location
+                count = process_sp->ReadUnsignedIntegerFromMemory(count+2*ptr_size, ptr_size, 0, error);
+                if (error.Fail())
+                    return false;
+            }
+        }
+        else
+        {
+            if (!ExtractValueFromObjCExpression(valobj, "unsigned long long int", "count", count))
+                return false;
+        }
+    }  while (false);
+    stream.Printf("%" PRIu64 " index%s",
+                  count,
+                  (count == 1 ? "" : "es"));
+    return true;
+}
+
+static void
+NSNumber_FormatChar (ValueObject& valobj,
+                     Stream& stream,
+                     char value,
+                     lldb::LanguageType lang)
+{
+    static ConstString g_TypeHint("NSNumber:char");
+    
+    std::string prefix,suffix;
+    if (Language* language = Language::FindPlugin(lang))
+    {
+        if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
+        {
+            prefix.clear();
+            suffix.clear();
+        }
+    }
+    
+    stream.Printf("%s%hhd%s",
+                  prefix.c_str(),
+                  value,
+                  suffix.c_str());
+}
+
+static void
+NSNumber_FormatShort (ValueObject& valobj,
+                      Stream& stream,
+                      short value,
+                      lldb::LanguageType lang)
+{
+    static ConstString g_TypeHint("NSNumber:short");
+    
+    std::string prefix,suffix;
+    if (Language* language = Language::FindPlugin(lang))
+    {
+        if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
+        {
+            prefix.clear();
+            suffix.clear();
+        }
+    }
+    
+    stream.Printf("%s%hd%s",
+                  prefix.c_str(),
+                  value,
+                  suffix.c_str());
+}
+
+static void
+NSNumber_FormatInt (ValueObject& valobj,
+                    Stream& stream,
+                    int value,
+                    lldb::LanguageType lang)
+{
+    static ConstString g_TypeHint("NSNumber:int");
+    
+    std::string prefix,suffix;
+    if (Language* language = Language::FindPlugin(lang))
+    {
+        if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
+        {
+            prefix.clear();
+            suffix.clear();
+        }
+    }
+    
+    stream.Printf("%s%d%s",
+                  prefix.c_str(),
+                  value,
+                  suffix.c_str());
+}
+
+static void
+NSNumber_FormatLong (ValueObject& valobj,
+                     Stream& stream,
+                     uint64_t value,
+                     lldb::LanguageType lang)
+{
+    static ConstString g_TypeHint("NSNumber:long");
+    
+    std::string prefix,suffix;
+    if (Language* language = Language::FindPlugin(lang))
+    {
+        if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
+        {
+            prefix.clear();
+            suffix.clear();
+        }
+    }
+    
+    stream.Printf("%s%" PRId64 "%s",
+                  prefix.c_str(),
+                  value,
+                  suffix.c_str());
+}
+
+static void
+NSNumber_FormatFloat (ValueObject& valobj,
+                      Stream& stream,
+                      float value,
+                      lldb::LanguageType lang)
+{
+    static ConstString g_TypeHint("NSNumber:float");
+    
+    std::string prefix,suffix;
+    if (Language* language = Language::FindPlugin(lang))
+    {
+        if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
+        {
+            prefix.clear();
+            suffix.clear();
+        }
+    }
+    
+    stream.Printf("%s%f%s",
+                  prefix.c_str(),
+                  value,
+                  suffix.c_str());
+}
+
+static void
+NSNumber_FormatDouble (ValueObject& valobj,
+                       Stream& stream,
+                       double value,
+                       lldb::LanguageType lang)
+{
+    static ConstString g_TypeHint("NSNumber:double");
+    
+    std::string prefix,suffix;
+    if (Language* language = Language::FindPlugin(lang))
+    {
+        if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
+        {
+            prefix.clear();
+            suffix.clear();
+        }
+    }
+    
+    stream.Printf("%s%g%s",
+                  prefix.c_str(),
+                  value,
+                  suffix.c_str());
+}
+
+bool
+lldb_private::formatters::NSNumberSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    const char* class_name = descriptor->GetClassName().GetCString();
+    
+    if (!class_name || !*class_name)
+        return false;
+    
+    if (!strcmp(class_name,"NSNumber") || !strcmp(class_name,"__NSCFNumber"))
+    {
+        uint64_t value = 0;
+        uint64_t i_bits = 0;
+        if (descriptor->GetTaggedPointerInfo(&i_bits,&value))
+        {
+            switch (i_bits)
+            {
+                case 0:
+                    NSNumber_FormatChar(valobj, stream, (char)value, options.GetLanguage());
+                    break;
+                case 1:
+                case 4:
+                    NSNumber_FormatShort(valobj, stream, (short)value, options.GetLanguage());
+                    break;
+                case 2:
+                case 8:
+                    NSNumber_FormatInt(valobj, stream, (int)value, options.GetLanguage());
+                    break;
+                case 3:
+                case 12:
+                    NSNumber_FormatLong(valobj, stream, value, options.GetLanguage());
+                    break;
+                default:
+                    return false;
+            }
+            return true;
+        }
+        else
+        {
+            Error error;
+            uint8_t data_type = (process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, 1, 0, error) & 0x1F);
+            uint64_t data_location = valobj_addr + 2*ptr_size;
+            uint64_t value = 0;
+            if (error.Fail())
+                return false;
+            switch (data_type)
+            {
+                case 1: // 0B00001
+                    value = process_sp->ReadUnsignedIntegerFromMemory(data_location, 1, 0, error);
+                    if (error.Fail())
+                        return false;
+                    NSNumber_FormatChar(valobj, stream, (char)value, options.GetLanguage());
+                    break;
+                case 2: // 0B0010
+                    value = process_sp->ReadUnsignedIntegerFromMemory(data_location, 2, 0, error);
+                    if (error.Fail())
+                        return false;
+                    NSNumber_FormatShort(valobj, stream, (short)value, options.GetLanguage());
+                    break;
+                case 3: // 0B0011
+                    value = process_sp->ReadUnsignedIntegerFromMemory(data_location, 4, 0, error);
+                    if (error.Fail())
+                        return false;
+                    NSNumber_FormatInt(valobj, stream, (int)value, options.GetLanguage());
+                    break;
+                case 17: // 0B10001
+                    data_location += 8;
+                case 4: // 0B0100
+                    value = process_sp->ReadUnsignedIntegerFromMemory(data_location, 8, 0, error);
+                    if (error.Fail())
+                        return false;
+                    NSNumber_FormatLong(valobj, stream, value, options.GetLanguage());
+                    break;
+                case 5: // 0B0101
+                {
+                    uint32_t flt_as_int = process_sp->ReadUnsignedIntegerFromMemory(data_location, 4, 0, error);
+                    if (error.Fail())
+                        return false;
+                    float flt_value = *((float*)&flt_as_int);
+                    NSNumber_FormatFloat(valobj, stream, flt_value, options.GetLanguage());
+                    break;
+                }
+                case 6: // 0B0110
+                {
+                    uint64_t dbl_as_lng = process_sp->ReadUnsignedIntegerFromMemory(data_location, 8, 0, error);
+                    if (error.Fail())
+                        return false;
+                    double dbl_value = *((double*)&dbl_as_lng);
+                    NSNumber_FormatDouble(valobj, stream, dbl_value, options.GetLanguage());
+                    break;
+                }
+                default:
+                    return false;
+            }
+            return true;
+        }
+    }
+    else
+    {
+        return ExtractSummaryFromObjCExpression(valobj, "NSString*", "stringValue", stream, options.GetLanguage());
+    }
+}
+
+bool
+lldb_private::formatters::NSURLSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    const char* class_name = descriptor->GetClassName().GetCString();
+    
+    if (!class_name || !*class_name)
+        return false;
+    
+    if (strcmp(class_name, "NSURL") == 0)
+    {
+        uint64_t offset_text = ptr_size + ptr_size + 8; // ISA + pointer + 8 bytes of data (even on 32bit)
+        uint64_t offset_base = offset_text + ptr_size;
+        CompilerType type(valobj.GetCompilerType());
+        ValueObjectSP text(valobj.GetSyntheticChildAtOffset(offset_text, type, true));
+        ValueObjectSP base(valobj.GetSyntheticChildAtOffset(offset_base, type, true));
+        if (!text)
+            return false;
+        if (text->GetValueAsUnsigned(0) == 0)
+            return false;
+        StreamString summary;
+        if (!NSStringSummaryProvider(*text, summary, options))
+            return false;
+        if (base && base->GetValueAsUnsigned(0))
+        {
+            if (summary.GetSize() > 0)
+                summary.GetString().resize(summary.GetSize()-1);
+            summary.Printf(" -- ");
+            StreamString base_summary;
+            if (NSURLSummaryProvider(*base, base_summary, options) && base_summary.GetSize() > 0)
+                summary.Printf("%s",base_summary.GetSize() > 2 ? base_summary.GetData() + 2 : base_summary.GetData());
+        }
+        if (summary.GetSize())
+        {
+            stream.Printf("%s",summary.GetData());
+            return true;
+        }
+    }
+    else
+    {
+        return ExtractSummaryFromObjCExpression(valobj, "NSString*", "description", stream, options.GetLanguage());
+    }
+    return false;
+}
+
+bool
+lldb_private::formatters::NSDateSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    uint64_t date_value_bits = 0;
+    double date_value = 0.0;
+    
+    const char* class_name = descriptor->GetClassName().GetCString();
+    
+    if (!class_name || !*class_name)
+        return false;
+    
+    if (strcmp(class_name,"NSDate") == 0 ||
+        strcmp(class_name,"__NSDate") == 0 ||
+        strcmp(class_name,"__NSTaggedDate") == 0)
+    {
+        uint64_t info_bits=0,value_bits = 0;
+        if (descriptor->GetTaggedPointerInfo(&info_bits,&value_bits))
+        {
+            date_value_bits = ((value_bits << 8) | (info_bits << 4));
+            date_value = *((double*)&date_value_bits);
+        }
+        else
+        {
+            Error error;
+            date_value_bits = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr+ptr_size, 8, 0, error);
+            date_value = *((double*)&date_value_bits);
+            if (error.Fail())
+                return false;
+        }
+    }
+    else if (!strcmp(class_name,"NSCalendarDate"))
+    {
+        Error error;
+        date_value_bits = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr+2*ptr_size, 8, 0, error);
+        date_value = *((double*)&date_value_bits);
+        if (error.Fail())
+            return false;
+    }
+    else
+    {
+        if (ExtractValueFromObjCExpression(valobj, "NSTimeInterval", "ExtractValueFromObjCExpression", date_value_bits) == false)
+            return false;
+        date_value = *((double*)&date_value_bits);
+    }
+    if (date_value == -63114076800)
+    {
+        stream.Printf("0001-12-30 00:00:00 +0000");
+        return true;
+    }
+    // this snippet of code assumes that time_t == seconds since Jan-1-1970
+    // this is generally true and POSIXly happy, but might break if a library
+    // vendor decides to get creative
+    time_t epoch = GetOSXEpoch();
+    epoch = epoch + (time_t)date_value;
+    tm *tm_date = gmtime(&epoch);
+    if (!tm_date)
+        return false;
+    std::string buffer(1024,0);
+    if (strftime (&buffer[0], 1023, "%Z", tm_date) == 0)
+        return false;
+    stream.Printf("%04d-%02d-%02d %02d:%02d:%02d %s", tm_date->tm_year+1900, tm_date->tm_mon+1, tm_date->tm_mday, tm_date->tm_hour, tm_date->tm_min, tm_date->tm_sec, buffer.c_str());
+    return true;
+}
+
+bool
+lldb_private::formatters::ObjCClassSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptorFromISA(valobj.GetValueAsUnsigned(0)));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    ConstString class_name = descriptor->GetClassName();
+    
+    if (class_name.IsEmpty())
+        return false;
+    
+    if (ConstString cs = Mangled(class_name).GetDemangledName(lldb::eLanguageTypeUnknown))
+        class_name = cs;
+    
+    stream.Printf("%s",class_name.AsCString("<unknown class>"));
+    return true;
+}
+
+class ObjCClassSyntheticChildrenFrontEnd : public SyntheticChildrenFrontEnd
+{
+public:
+    ObjCClassSyntheticChildrenFrontEnd (lldb::ValueObjectSP valobj_sp) :
+    SyntheticChildrenFrontEnd(*valobj_sp.get())
+    {
+    }
+    
+    ~ObjCClassSyntheticChildrenFrontEnd() override = default;
+
+    size_t
+    CalculateNumChildren() override
+    {
+        return 0;
+    }
+    
+    lldb::ValueObjectSP
+    GetChildAtIndex(size_t idx) override
+    {
+        return lldb::ValueObjectSP();
+    }
+    
+    bool
+    Update() override
+    {
+        return false;
+    }
+    
+    bool
+    MightHaveChildren() override
+    {
+        return false;
+    }
+    
+    size_t
+    GetIndexOfChildWithName(const ConstString &name) override
+    {
+        return UINT32_MAX;
+    }
+};
+
+SyntheticChildrenFrontEnd*
+lldb_private::formatters::ObjCClassSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    return new ObjCClassSyntheticChildrenFrontEnd(valobj_sp);
+}
+
+template<bool needs_at>
+bool
+lldb_private::formatters::NSDataSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    bool is_64bit = (process_sp->GetAddressByteSize() == 8);
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    uint64_t value = 0;
+    
+    const char* class_name = descriptor->GetClassName().GetCString();
+    
+    if (!class_name || !*class_name)
+        return false;
+    
+    if (!strcmp(class_name,"NSConcreteData") ||
+        !strcmp(class_name,"NSConcreteMutableData") ||
+        !strcmp(class_name,"__NSCFData"))
+    {
+        uint32_t offset = (is_64bit ? 16 : 8);
+        Error error;
+        value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + offset, is_64bit ? 8 : 4, 0, error);
+        if (error.Fail())
+            return false;
+    }
+    else
+    {
+        if (!ExtractValueFromObjCExpression(valobj, "int", "length", value))
+            return false;
+    }
+    
+    stream.Printf("%s%" PRIu64 " byte%s%s",
+                  (needs_at ? "@\"" : ""),
+                  value,
+                  (value != 1 ? "s" : ""),
+                  (needs_at ? "\"" : ""));
+    
+    return true;
+}
+
+bool
+lldb_private::formatters::ObjCBOOLSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    const uint32_t type_info = valobj.GetCompilerType().GetTypeInfo();
+    
+    ValueObjectSP real_guy_sp = valobj.GetSP();
+    
+    if (type_info & eTypeIsPointer)
+    {
+        Error err;
+        real_guy_sp = valobj.Dereference(err);
+        if (err.Fail() || !real_guy_sp)
+            return false;
+    }
+    else if (type_info & eTypeIsReference)
+    {
+        real_guy_sp =  valobj.GetChildAtIndex(0, true);
+        if (!real_guy_sp)
+            return false;
+    }
+    uint64_t value = real_guy_sp->GetValueAsUnsigned(0);
+    if (value == 0)
+    {
+        stream.Printf("NO");
+        return true;
+    }
+    stream.Printf("YES");
+    return true;
+}
+
+template <bool is_sel_ptr>
+bool
+lldb_private::formatters::ObjCSELSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    lldb::ValueObjectSP valobj_sp;
+    
+    CompilerType charstar (valobj.GetCompilerType().GetBasicTypeFromAST(eBasicTypeChar).GetPointerType());
+    
+    if (!charstar)
+        return false;
+    
+    ExecutionContext exe_ctx(valobj.GetExecutionContextRef());
+    
+    if (is_sel_ptr)
+    {
+        lldb::addr_t data_address = valobj.GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
+        if (data_address == LLDB_INVALID_ADDRESS)
+            return false;
+        valobj_sp = ValueObject::CreateValueObjectFromAddress("text", data_address, exe_ctx, charstar);
+    }
+    else
+    {
+        DataExtractor data;
+        Error error;
+        valobj.GetData(data, error);
+        if (error.Fail())
+            return false;
+        valobj_sp = ValueObject::CreateValueObjectFromData("text", data, exe_ctx, charstar);
+    }
+    
+    if (!valobj_sp)
+        return false;
+    
+    stream.Printf("%s",valobj_sp->GetSummaryAsCString());
+    return true;
+}
+
+// POSIX has an epoch on Jan-1-1970, but Cocoa prefers Jan-1-2001
+// this call gives the POSIX equivalent of the Cocoa epoch
+time_t
+lldb_private::formatters::GetOSXEpoch ()
+{
+    static time_t epoch = 0;
+    if (!epoch)
+    {
+#ifndef _WIN32
+        tzset();
+        tm tm_epoch;
+        tm_epoch.tm_sec = 0;
+        tm_epoch.tm_hour = 0;
+        tm_epoch.tm_min = 0;
+        tm_epoch.tm_mon = 0;
+        tm_epoch.tm_mday = 1;
+        tm_epoch.tm_year = 2001-1900; // for some reason, we need to subtract 1900 from this field. not sure why.
+        tm_epoch.tm_isdst = -1;
+        tm_epoch.tm_gmtoff = 0;
+        tm_epoch.tm_zone = NULL;
+        epoch = timegm(&tm_epoch);
+#endif
+    }
+    return epoch;
+}
+
+bool
+lldb_private::formatters::RuntimeSpecificDescriptionSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    if (const char* description = valobj.GetObjectDescription())
+    {
+        stream.Printf("%s", description);
+        return true;
+    }
+    else
+        return false;
+}
+
+template bool
+lldb_private::formatters::NSDataSummaryProvider<true> (ValueObject&, Stream&, const TypeSummaryOptions&);
+
+template bool
+lldb_private::formatters::NSDataSummaryProvider<false> (ValueObject&, Stream&, const TypeSummaryOptions&);
+
+template bool
+lldb_private::formatters::ObjCSELSummaryProvider<true> (ValueObject&, Stream&, const TypeSummaryOptions&);
+
+template bool
+lldb_private::formatters::ObjCSELSummaryProvider<false> (ValueObject&, Stream&, const TypeSummaryOptions&);
diff --git a/source/Plugins/Language/ObjC/Cocoa.h b/source/Plugins/Language/ObjC/Cocoa.h
new file mode 100644
index 0000000000000..0caacf3453d4a
--- /dev/null
+++ b/source/Plugins/Language/ObjC/Cocoa.h
@@ -0,0 +1,97 @@
+//===-- Cocoa.h ---------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_Cocoa_h_
+#define liblldb_Cocoa_h_
+
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/DataFormatters/TypeSummary.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+
+namespace lldb_private {
+    namespace formatters
+    {
+        bool
+        NSIndexSetSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        NSArraySummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        template<bool needs_at>
+        bool
+        NSDataSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        NSNumberSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        NSNotificationSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        NSTimeZoneSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        NSMachPortSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        NSDateSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        NSBundleSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        NSURLSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        extern template bool
+        NSDataSummaryProvider<true> (ValueObject&, Stream&, const TypeSummaryOptions&) ;
+        
+        extern template bool
+        NSDataSummaryProvider<false> (ValueObject&, Stream&, const TypeSummaryOptions&) ;
+        
+        SyntheticChildrenFrontEnd* NSArraySyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+        
+        SyntheticChildrenFrontEnd* NSIndexPathSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+        
+        bool
+        ObjCClassSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        SyntheticChildrenFrontEnd* ObjCClassSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+        
+        bool
+        ObjCBOOLSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        template <bool is_sel_ptr>
+        bool
+        ObjCSELSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        extern template bool
+        ObjCSELSummaryProvider<true> (ValueObject&, Stream&, const TypeSummaryOptions&);
+        
+        extern template bool
+        ObjCSELSummaryProvider<false> (ValueObject&, Stream&, const TypeSummaryOptions&);
+        
+        bool
+        RuntimeSpecificDescriptionSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        NSError_SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        NSException_SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        SyntheticChildrenFrontEnd*
+        NSErrorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp);
+        
+        SyntheticChildrenFrontEnd*
+        NSExceptionSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp);
+    } // namespace formatters
+} // namespace lldb_private
+
+#endif // liblldb_Cocoa_h_
diff --git a/source/Plugins/Language/ObjC/CoreMedia.cpp b/source/Plugins/Language/ObjC/CoreMedia.cpp
new file mode 100644
index 0000000000000..4103067b8d582
--- /dev/null
+++ b/source/Plugins/Language/ObjC/CoreMedia.cpp
@@ -0,0 +1,89 @@
+//===-- CoreMedia.cpp --------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "CoreMedia.h"
+
+#include "lldb/Core/Flags.h"
+#include "lldb/Symbol/TypeSystem.h"
+#include "lldb/Target/Target.h"
+#include <inttypes.h>
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+bool
+lldb_private::formatters::CMTimeSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    CompilerType type = valobj.GetCompilerType();
+    if (!type.IsValid())
+        return false;
+
+    TypeSystem *type_system = valobj.GetExecutionContextRef().GetTargetSP()->GetScratchTypeSystemForLanguage(nullptr, lldb::eLanguageTypeC);
+    if (!type_system)
+        return false;
+    
+    // fetch children by offset to compensate for potential lack of debug info
+    auto int64_ty = type_system->GetBuiltinTypeForEncodingAndBitSize(eEncodingSint, 64);
+    auto int32_ty = type_system->GetBuiltinTypeForEncodingAndBitSize(eEncodingSint, 32);
+    
+    auto value_sp(valobj.GetSyntheticChildAtOffset(0, int64_ty, true));
+    auto timescale_sp(valobj.GetSyntheticChildAtOffset(8, int32_ty, true));
+    auto flags_sp(valobj.GetSyntheticChildAtOffset(12, int32_ty, true));
+    
+    if (!value_sp || !timescale_sp || !flags_sp)
+        return false;
+    
+    auto value = value_sp->GetValueAsUnsigned(0);
+    auto timescale = (int32_t)timescale_sp->GetValueAsUnsigned(0); // the timescale specifies the fraction of a second each unit in the numerator occupies
+    auto flags = Flags(flags_sp->GetValueAsUnsigned(0) & 0x00000000000000FF); // the flags I need sit in the LSB
+    
+    const unsigned int FlagPositiveInf = 4;
+    const unsigned int FlagNegativeInf = 8;
+    const unsigned int FlagIndefinite = 16;
+    
+    if (flags.AnySet(FlagIndefinite))
+    {
+        stream.Printf("indefinite");
+        return true;
+    }
+    
+    if (flags.AnySet(FlagPositiveInf))
+    {
+        stream.Printf("+oo");
+        return true;
+    }
+    
+    if (flags.AnySet(FlagNegativeInf))
+    {
+        stream.Printf("-oo");
+        return true;
+    }
+    
+    if (timescale == 0)
+        return false;
+    
+    switch (timescale)
+    {
+        case 0:
+            return false;
+        case 1:
+            stream.Printf("%" PRId64 " seconds", value);
+            return true;
+        case 2:
+            stream.Printf("%" PRId64 " half seconds", value);
+            return true;
+        case 3:
+            stream.Printf("%" PRId64 " third%sof a second", value, value == 1 ? " " : "s ");
+            return true;
+        default:
+            stream.Printf("%" PRId64 " %" PRId32 "th%sof a second", value, timescale, value == 1 ? " " : "s ");
+            return true;
+    }
+}
diff --git a/source/Plugins/Language/ObjC/CoreMedia.h b/source/Plugins/Language/ObjC/CoreMedia.h
new file mode 100644
index 0000000000000..2ffabaadccf58
--- /dev/null
+++ b/source/Plugins/Language/ObjC/CoreMedia.h
@@ -0,0 +1,26 @@
+//===-- CoreMedia.h -----------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_CoreMedia_h_
+#define liblldb_CoreMedia_h_
+
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/DataFormatters/TypeSummary.h"
+
+namespace lldb_private {
+    namespace formatters
+    {
+        
+        bool
+        CMTimeSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+    } // namespace formatters
+} // namespace lldb_private
+
+#endif // liblldb_CF_h_
diff --git a/source/Plugins/Language/ObjC/NSArray.cpp b/source/Plugins/Language/ObjC/NSArray.cpp
new file mode 100644
index 0000000000000..ccc82ab95ecc7
--- /dev/null
+++ b/source/Plugins/Language/ObjC/NSArray.cpp
@@ -0,0 +1,792 @@
+//===-- NSArray.cpp ---------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+#include "clang/AST/ASTContext.h"
+
+// Project includes
+#include "Cocoa.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/Expression/FunctionCaller.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/Language.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntime.h"
+#include "lldb/Target/Target.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+namespace  lldb_private {
+    namespace formatters {
+        class NSArrayMSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            NSArrayMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~NSArrayMSyntheticFrontEnd() override = default;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override = 0;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+            
+        protected:
+            virtual lldb::addr_t
+            GetDataAddress () = 0;
+            
+            virtual uint64_t
+            GetUsedCount () = 0;
+            
+            virtual uint64_t
+            GetOffset () = 0;
+            
+            virtual uint64_t
+            GetSize () = 0;
+            
+            ExecutionContextRef m_exe_ctx_ref;
+            uint8_t m_ptr_size;
+            CompilerType m_id_type;
+            std::vector<lldb::ValueObjectSP> m_children;
+        };
+        
+        class NSArrayMSyntheticFrontEnd_109 : public NSArrayMSyntheticFrontEnd
+        {
+        public:
+            NSArrayMSyntheticFrontEnd_109 (lldb::ValueObjectSP valobj_sp);
+
+            ~NSArrayMSyntheticFrontEnd_109() override;
+
+            bool
+            Update() override;
+            
+        protected:
+            lldb::addr_t
+            GetDataAddress() override;
+            
+            uint64_t
+            GetUsedCount() override;
+            
+            uint64_t
+            GetOffset() override;
+            
+            uint64_t
+            GetSize() override;
+            
+        private:
+            struct DataDescriptor_32
+            {
+                uint32_t _used;
+                uint32_t _priv1 : 2 ;
+                uint32_t _size : 30;
+                uint32_t _priv2 : 2;
+                uint32_t _offset : 30;
+                uint32_t _priv3;
+                uint32_t _data;
+            };
+
+            struct DataDescriptor_64
+            {
+                uint64_t _used;
+                uint64_t _priv1 : 2 ;
+                uint64_t _size : 62;
+                uint64_t _priv2 : 2;
+                uint64_t _offset : 62;
+                uint32_t _priv3;
+                uint64_t _data;
+            };
+
+            DataDescriptor_32 *m_data_32;
+            DataDescriptor_64 *m_data_64;
+        };
+        
+        class NSArrayMSyntheticFrontEnd_1010 : public NSArrayMSyntheticFrontEnd
+        {
+        public:
+            NSArrayMSyntheticFrontEnd_1010 (lldb::ValueObjectSP valobj_sp);
+
+            ~NSArrayMSyntheticFrontEnd_1010() override;
+
+            bool
+            Update() override;
+            
+        protected:
+            lldb::addr_t
+            GetDataAddress() override;
+            
+            uint64_t
+            GetUsedCount() override;
+            
+            uint64_t
+            GetOffset() override;
+            
+            uint64_t
+            GetSize() override;
+            
+        private:
+            struct DataDescriptor_32
+            {
+                uint32_t _used;
+                uint32_t _offset;
+                uint32_t _size : 28;
+                uint64_t _priv1 : 4;
+                uint32_t _priv2;
+                uint32_t _data;
+            };
+
+            struct DataDescriptor_64
+            {
+                uint64_t _used;
+                uint64_t _offset;
+                uint64_t _size : 60;
+                uint64_t _priv1 : 4;
+                uint32_t _priv2;
+                uint64_t _data;
+            };
+
+            DataDescriptor_32 *m_data_32;
+            DataDescriptor_64 *m_data_64;
+        };
+        
+        class NSArrayISyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            NSArrayISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~NSArrayISyntheticFrontEnd() override = default;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+
+        private:
+            ExecutionContextRef m_exe_ctx_ref;
+            uint8_t m_ptr_size;
+            uint64_t m_items;
+            lldb::addr_t m_data_ptr;
+            CompilerType m_id_type;
+            std::vector<lldb::ValueObjectSP> m_children;
+        };
+        
+        class NSArray0SyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            NSArray0SyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~NSArray0SyntheticFrontEnd() override = default;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+        };
+        
+        class NSArrayCodeRunningSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            NSArrayCodeRunningSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~NSArrayCodeRunningSyntheticFrontEnd() override = default;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+        };
+    } // namespace formatters
+} // namespace lldb_private
+
+bool
+lldb_private::formatters::NSArraySummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    static ConstString g_TypeHint("NSArray");
+    
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    uint64_t value = 0;
+    
+    const char* class_name = descriptor->GetClassName().GetCString();
+    
+    if (!class_name || !*class_name)
+        return false;
+    
+    if (!strcmp(class_name,"__NSArrayI"))
+    {
+        Error error;
+        value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
+        if (error.Fail())
+            return false;
+    }
+    else if (!strcmp(class_name,"__NSArrayM"))
+    {
+        Error error;
+        value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
+        if (error.Fail())
+            return false;
+    }
+    else if (!strcmp(class_name,"__NSArray0"))
+    {
+        value = 0;
+    }
+    else if (!strcmp(class_name,"__NSCFArray"))
+    {
+        Error error;
+        value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + 2 * ptr_size, ptr_size, 0, error);
+        if (error.Fail())
+            return false;
+    }
+    else
+    {
+        if (!ExtractValueFromObjCExpression(valobj, "int", "count", value))
+            return false;
+    }
+    
+    std::string prefix,suffix;
+    if (Language* language = Language::FindPlugin(options.GetLanguage()))
+    {
+        if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
+        {
+            prefix.clear();
+            suffix.clear();
+        }
+    }
+    
+    stream.Printf("%s%" PRIu64 " %s%s%s",
+                  prefix.c_str(),
+                  value,
+                  "element",
+                  value == 1 ? "" : "s",
+                  suffix.c_str());
+    return true;
+}
+
+lldb_private::formatters::NSArrayMSyntheticFrontEnd::NSArrayMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp),
+m_exe_ctx_ref(),
+m_ptr_size(8),
+m_id_type(),
+m_children()
+{
+    if (valobj_sp)
+    {
+        clang::ASTContext *ast = valobj_sp->GetExecutionContextRef().GetTargetSP()->GetScratchClangASTContext()->getASTContext();
+        if (ast)
+            m_id_type = CompilerType(ast, ast->ObjCBuiltinIdTy);
+        if (valobj_sp->GetProcessSP())
+            m_ptr_size = valobj_sp->GetProcessSP()->GetAddressByteSize();
+    }
+}
+
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::NSArrayMSyntheticFrontEnd_109 (lldb::ValueObjectSP valobj_sp) :
+NSArrayMSyntheticFrontEnd(valobj_sp),
+m_data_32(NULL),
+m_data_64(NULL)
+{
+}
+
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::NSArrayMSyntheticFrontEnd_1010 (lldb::ValueObjectSP valobj_sp) :
+NSArrayMSyntheticFrontEnd(valobj_sp),
+m_data_32(NULL),
+m_data_64(NULL)
+{
+}
+
+size_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd::CalculateNumChildren ()
+{
+    return GetUsedCount();
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::NSArrayMSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    if (idx >= CalculateNumChildren())
+        return lldb::ValueObjectSP();
+    lldb::addr_t object_at_idx = GetDataAddress();
+    size_t pyhs_idx = idx;
+    pyhs_idx += GetOffset();
+    if (GetSize() <= pyhs_idx)
+        pyhs_idx -= GetSize();
+    object_at_idx += (pyhs_idx * m_ptr_size);
+    StreamString idx_name;
+    idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+    lldb::ValueObjectSP retval_sp = CreateValueObjectFromAddress(idx_name.GetData(),
+                                                                 object_at_idx,
+                                                                 m_exe_ctx_ref,
+                                                                 m_id_type);
+    m_children.push_back(retval_sp);
+    return retval_sp;
+}
+
+bool
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::Update()
+{
+    m_children.clear();
+    ValueObjectSP valobj_sp = m_backend.GetSP();
+    m_ptr_size = 0;
+    delete m_data_32;
+    m_data_32 = NULL;
+    delete m_data_64;
+    m_data_64 = NULL;
+    if (!valobj_sp)
+        return false;
+    m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
+    Error error;
+    error.Clear();
+    lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
+    if (!process_sp)
+        return false;
+    m_ptr_size = process_sp->GetAddressByteSize();
+    uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size;
+    if (m_ptr_size == 4)
+    {
+        m_data_32 = new DataDescriptor_32();
+        process_sp->ReadMemory (data_location, m_data_32, sizeof(DataDescriptor_32), error);
+    }
+    else
+    {
+        m_data_64 = new DataDescriptor_64();
+        process_sp->ReadMemory (data_location, m_data_64, sizeof(DataDescriptor_64), error);
+    }
+    if (error.Fail())
+        return false;
+    return false;
+}
+
+bool
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::Update()
+{
+    m_children.clear();
+    ValueObjectSP valobj_sp = m_backend.GetSP();
+    m_ptr_size = 0;
+    delete m_data_32;
+    m_data_32 = NULL;
+    delete m_data_64;
+    m_data_64 = NULL;
+    if (!valobj_sp)
+        return false;
+    m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
+    Error error;
+    error.Clear();
+    lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
+    if (!process_sp)
+        return false;
+    m_ptr_size = process_sp->GetAddressByteSize();
+    uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size;
+    if (m_ptr_size == 4)
+    {
+        m_data_32 = new DataDescriptor_32();
+        process_sp->ReadMemory (data_location, m_data_32, sizeof(DataDescriptor_32), error);
+    }
+    else
+    {
+        m_data_64 = new DataDescriptor_64();
+        process_sp->ReadMemory (data_location, m_data_64, sizeof(DataDescriptor_64), error);
+    }
+    if (error.Fail())
+        return false;
+    return false;
+}
+
+bool
+lldb_private::formatters::NSArrayMSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+size_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    const char* item_name = name.GetCString();
+    uint32_t idx = ExtractIndexFromString(item_name);
+    if (idx < UINT32_MAX && idx >= CalculateNumChildren())
+        return UINT32_MAX;
+    return idx;
+}
+
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::~NSArrayMSyntheticFrontEnd_109()
+{
+    delete m_data_32;
+    m_data_32 = NULL;
+    delete m_data_64;
+    m_data_64 = NULL;
+}
+
+lldb::addr_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::GetDataAddress ()
+{
+    if (!m_data_32 && !m_data_64)
+        return LLDB_INVALID_ADDRESS;
+    return m_data_32 ? m_data_32->_data :
+    m_data_64->_data;
+}
+
+uint64_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::GetUsedCount ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return m_data_32 ? m_data_32->_used :
+    m_data_64->_used;
+}
+
+uint64_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::GetOffset ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return m_data_32 ? m_data_32->_offset :
+    m_data_64->_offset;
+}
+
+uint64_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_109::GetSize ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return m_data_32 ? m_data_32->_size :
+    m_data_64->_size;
+}
+
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::~NSArrayMSyntheticFrontEnd_1010()
+{
+    delete m_data_32;
+    m_data_32 = NULL;
+    delete m_data_64;
+    m_data_64 = NULL;
+}
+
+lldb::addr_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::GetDataAddress ()
+{
+    if (!m_data_32 && !m_data_64)
+        return LLDB_INVALID_ADDRESS;
+    return m_data_32 ? m_data_32->_data :
+    m_data_64->_data;
+}
+
+uint64_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::GetUsedCount ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return m_data_32 ? m_data_32->_used :
+    m_data_64->_used;
+}
+
+uint64_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::GetOffset ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return m_data_32 ? m_data_32->_offset :
+    m_data_64->_offset;
+}
+
+uint64_t
+lldb_private::formatters::NSArrayMSyntheticFrontEnd_1010::GetSize ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return m_data_32 ? m_data_32->_size :
+    m_data_64->_size;
+}
+
+lldb_private::formatters::NSArrayISyntheticFrontEnd::NSArrayISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd (*valobj_sp.get()),
+m_exe_ctx_ref (),
+m_ptr_size (8),
+m_items (0),
+m_data_ptr (0)
+{
+    if (valobj_sp)
+    {
+        CompilerType type = valobj_sp->GetCompilerType();
+        if (type)
+        {
+            ClangASTContext *ast = valobj_sp->GetExecutionContextRef().GetTargetSP()->GetScratchClangASTContext();
+            if (ast)
+                m_id_type = CompilerType(ast->getASTContext(), ast->getASTContext()->ObjCBuiltinIdTy);
+        }
+    }
+}
+
+size_t
+lldb_private::formatters::NSArrayISyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    const char* item_name = name.GetCString();
+    uint32_t idx = ExtractIndexFromString(item_name);
+    if (idx < UINT32_MAX && idx >= CalculateNumChildren())
+        return UINT32_MAX;
+    return idx;
+}
+
+size_t
+lldb_private::formatters::NSArrayISyntheticFrontEnd::CalculateNumChildren ()
+{
+    return m_items;
+}
+
+bool
+lldb_private::formatters::NSArrayISyntheticFrontEnd::Update()
+{
+    m_ptr_size = 0;
+    m_items = 0;
+    m_data_ptr = 0;
+    m_children.clear();
+    ValueObjectSP valobj_sp = m_backend.GetSP();
+    if (!valobj_sp)
+        return false;
+    m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
+    Error error;
+    error.Clear();
+    lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
+    if (!process_sp)
+        return false;
+    m_ptr_size = process_sp->GetAddressByteSize();
+    uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size;
+    m_items = process_sp->ReadPointerFromMemory(data_location, error);
+    if (error.Fail())
+        return false;
+    m_data_ptr = data_location+m_ptr_size;
+    return false;
+}
+
+bool
+lldb_private::formatters::NSArrayISyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::NSArrayISyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    if (idx >= CalculateNumChildren())
+        return lldb::ValueObjectSP();
+    lldb::addr_t object_at_idx = m_data_ptr;
+    object_at_idx += (idx * m_ptr_size);
+    ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP();
+    if (!process_sp)
+        return lldb::ValueObjectSP();
+    Error error;
+    if (error.Fail())
+        return lldb::ValueObjectSP();
+    StreamString idx_name;
+    idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+    lldb::ValueObjectSP retval_sp = CreateValueObjectFromAddress(idx_name.GetData(),
+                                                                 object_at_idx,
+                                                                 m_exe_ctx_ref,
+                                                                 m_id_type);
+    m_children.push_back(retval_sp);
+    return retval_sp;
+}
+
+lldb_private::formatters::NSArray0SyntheticFrontEnd::NSArray0SyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd (*valobj_sp.get())
+{
+}
+
+size_t
+lldb_private::formatters::NSArray0SyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    return UINT32_MAX;
+}
+
+size_t
+lldb_private::formatters::NSArray0SyntheticFrontEnd::CalculateNumChildren ()
+{
+    return 0;
+}
+
+bool
+lldb_private::formatters::NSArray0SyntheticFrontEnd::Update()
+{
+    return false;
+}
+
+bool
+lldb_private::formatters::NSArray0SyntheticFrontEnd::MightHaveChildren ()
+{
+    return false;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::NSArray0SyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    return lldb::ValueObjectSP();
+}
+
+SyntheticChildrenFrontEnd* lldb_private::formatters::NSArraySyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    if (!valobj_sp)
+        return nullptr;
+    
+    lldb::ProcessSP process_sp (valobj_sp->GetProcessSP());
+    if (!process_sp)
+        return NULL;
+    AppleObjCRuntime *runtime = llvm::dyn_cast_or_null<AppleObjCRuntime>(process_sp->GetObjCLanguageRuntime());
+    if (!runtime)
+        return NULL;
+    
+    CompilerType valobj_type(valobj_sp->GetCompilerType());
+    Flags flags(valobj_type.GetTypeInfo());
+    
+    if (flags.IsClear(eTypeIsPointer))
+    {
+        Error error;
+        valobj_sp = valobj_sp->AddressOf(error);
+        if (error.Fail() || !valobj_sp)
+            return NULL;
+    }
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(*valobj_sp.get()));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return NULL;
+    
+    const char* class_name = descriptor->GetClassName().GetCString();
+    
+    if (!class_name || !*class_name)
+        return NULL;
+    
+    if (!strcmp(class_name,"__NSArrayI"))
+    {
+        return (new NSArrayISyntheticFrontEnd(valobj_sp));
+    }
+    else if (!strcmp(class_name,"__NSArray0"))
+    {
+        return (new NSArray0SyntheticFrontEnd(valobj_sp));
+    }
+    else if (!strcmp(class_name,"__NSArrayM"))
+    {
+        if (runtime->GetFoundationVersion() >= 1100)
+            return (new NSArrayMSyntheticFrontEnd_1010(valobj_sp));
+        else
+            return (new NSArrayMSyntheticFrontEnd_109(valobj_sp));
+    }
+    else
+    {
+        return (new NSArrayCodeRunningSyntheticFrontEnd(valobj_sp));
+    }
+}
+
+lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::NSArrayCodeRunningSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get())
+{}
+
+size_t
+lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::CalculateNumChildren ()
+{
+    uint64_t count = 0;
+    if (ExtractValueFromObjCExpression(m_backend, "int", "count", count))
+        return count;
+    return 0;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    StreamString idx_name;
+    idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+    lldb::ValueObjectSP valobj_sp = CallSelectorOnObject(m_backend,"id","objectAtIndex:",idx);
+    if (valobj_sp)
+    {
+        valobj_sp->SetPreferredDisplayLanguage(m_backend.GetPreferredDisplayLanguage());
+        valobj_sp->SetName(ConstString(idx_name.GetData()));
+    }
+    return valobj_sp;
+}
+
+bool
+lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::Update()
+{
+    return false;
+}
+
+bool
+lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+size_t
+lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    return 0;
+}
diff --git a/source/Plugins/Language/ObjC/NSDictionary.cpp b/source/Plugins/Language/ObjC/NSDictionary.cpp
new file mode 100644
index 0000000000000..e4a7425329f58
--- /dev/null
+++ b/source/Plugins/Language/ObjC/NSDictionary.cpp
@@ -0,0 +1,749 @@
+//===-- NSDictionary.cpp ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+#include <mutex>
+
+// Other libraries and framework includes
+#include "clang/AST/DeclCXX.h"
+
+// Project includes
+#include "NSDictionary.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/Language.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "lldb/Target/StackFrame.h"
+#include "lldb/Target/Target.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+std::map<ConstString, CXXFunctionSummaryFormat::Callback>&
+NSDictionary_Additionals::GetAdditionalSummaries ()
+{
+    static std::map<ConstString, CXXFunctionSummaryFormat::Callback> g_map;
+    return g_map;
+}
+
+std::map<ConstString, CXXSyntheticChildren::CreateFrontEndCallback>&
+NSDictionary_Additionals::GetAdditionalSynthetics ()
+{
+    static std::map<ConstString, CXXSyntheticChildren::CreateFrontEndCallback> g_map;
+    return g_map;
+}
+
+static CompilerType
+GetLLDBNSPairType (TargetSP target_sp)
+{
+    CompilerType compiler_type;
+    
+    ClangASTContext *target_ast_context = target_sp->GetScratchClangASTContext();
+    
+    if (target_ast_context)
+    {
+        ConstString g___lldb_autogen_nspair("__lldb_autogen_nspair");
+        
+        compiler_type = target_ast_context->GetTypeForIdentifier<clang::CXXRecordDecl>(g___lldb_autogen_nspair);
+        
+        if (!compiler_type)
+        {
+            compiler_type = target_ast_context->CreateRecordType(NULL, lldb::eAccessPublic, g___lldb_autogen_nspair.GetCString(), clang::TTK_Struct, lldb::eLanguageTypeC);
+            
+            if (compiler_type)
+            {
+                ClangASTContext::StartTagDeclarationDefinition(compiler_type);
+                CompilerType id_compiler_type = target_ast_context->GetBasicType (eBasicTypeObjCID);
+                ClangASTContext::AddFieldToRecordType(compiler_type, "key", id_compiler_type, lldb::eAccessPublic, 0);
+                ClangASTContext::AddFieldToRecordType(compiler_type, "value", id_compiler_type, lldb::eAccessPublic, 0);
+                ClangASTContext::CompleteTagDeclarationDefinition(compiler_type);
+            }
+        }
+    }
+    return compiler_type;
+}
+
+namespace lldb_private {
+    namespace  formatters {
+        class NSDictionaryISyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            NSDictionaryISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~NSDictionaryISyntheticFrontEnd() override;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+
+        private:
+            struct DataDescriptor_32
+            {
+                uint32_t _used : 26;
+                uint32_t _szidx : 6;
+            };
+
+            struct DataDescriptor_64
+            {
+                uint64_t _used : 58;
+                uint32_t _szidx : 6;
+            };
+
+            struct DictionaryItemDescriptor
+            {
+                lldb::addr_t key_ptr;
+                lldb::addr_t val_ptr;
+                lldb::ValueObjectSP valobj_sp;
+            };
+
+            ExecutionContextRef m_exe_ctx_ref;
+            uint8_t m_ptr_size;
+            lldb::ByteOrder m_order;
+            DataDescriptor_32 *m_data_32;
+            DataDescriptor_64 *m_data_64;
+            lldb::addr_t m_data_ptr;
+            CompilerType m_pair_type;
+            std::vector<DictionaryItemDescriptor> m_children;
+        };
+        
+        class NSDictionaryMSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            NSDictionaryMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~NSDictionaryMSyntheticFrontEnd() override;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+
+        private:
+            struct DataDescriptor_32
+            {
+                uint32_t _used : 26;
+                uint32_t _kvo : 1;
+                uint32_t _size;
+                uint32_t _mutations;
+                uint32_t _objs_addr;
+                uint32_t _keys_addr;
+            };
+
+            struct DataDescriptor_64
+            {
+                uint64_t _used : 58;
+                uint32_t _kvo : 1;
+                uint64_t _size;
+                uint64_t _mutations;
+                uint64_t _objs_addr;
+                uint64_t _keys_addr;
+            };
+
+            struct DictionaryItemDescriptor
+            {
+                lldb::addr_t key_ptr;
+                lldb::addr_t val_ptr;
+                lldb::ValueObjectSP valobj_sp;
+            };
+
+            ExecutionContextRef m_exe_ctx_ref;
+            uint8_t m_ptr_size;
+            lldb::ByteOrder m_order;
+            DataDescriptor_32 *m_data_32;
+            DataDescriptor_64 *m_data_64;
+            CompilerType m_pair_type;
+            std::vector<DictionaryItemDescriptor> m_children;
+        };
+        
+        class NSDictionaryCodeRunningSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            NSDictionaryCodeRunningSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~NSDictionaryCodeRunningSyntheticFrontEnd() override = default;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+        };
+    } // namespace formatters
+} // namespace lldb_private
+
+template<bool name_entries>
+bool
+lldb_private::formatters::NSDictionarySummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    static ConstString g_TypeHint("NSDictionary");
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    bool is_64bit = (ptr_size == 8);
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    uint64_t value = 0;
+    
+    ConstString class_name_cs = descriptor->GetClassName();
+    const char* class_name = class_name_cs.GetCString();
+    
+    if (!class_name || !*class_name)
+        return false;
+    
+    if (!strcmp(class_name,"__NSDictionaryI"))
+    {
+        Error error;
+        value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
+        if (error.Fail())
+            return false;
+        value &= (is_64bit ? ~0xFC00000000000000UL : ~0xFC000000U);
+    }
+    else if (!strcmp(class_name,"__NSDictionaryM"))
+    {
+        Error error;
+        value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
+        if (error.Fail())
+            return false;
+        value &= (is_64bit ? ~0xFC00000000000000UL : ~0xFC000000U);
+    }
+    /*else if (!strcmp(class_name,"__NSCFDictionary"))
+     {
+     Error error;
+     value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + (is_64bit ? 20 : 12), 4, 0, error);
+     if (error.Fail())
+     return false;
+     if (is_64bit)
+     value &= ~0x0f1f000000000000UL;
+     }*/
+    else
+    {
+        auto& map(NSDictionary_Additionals::GetAdditionalSummaries());
+        auto iter = map.find(class_name_cs), end = map.end();
+        if (iter != end)
+            return iter->second(valobj, stream, options);
+        if (!ExtractValueFromObjCExpression(valobj, "int", "count", value))
+            return false;
+    }
+    
+    std::string prefix,suffix;
+    if (Language* language = Language::FindPlugin(options.GetLanguage()))
+    {
+        if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
+        {
+            prefix.clear();
+            suffix.clear();
+        }
+    }
+    
+    stream.Printf("%s%" PRIu64 " %s%s%s",
+                  prefix.c_str(),
+                  value,
+                  "key/value pair",
+                  value == 1 ? "" : "s",
+                  suffix.c_str());
+    return true;
+}
+
+SyntheticChildrenFrontEnd* lldb_private::formatters::NSDictionarySyntheticFrontEndCreator (CXXSyntheticChildren* synth, lldb::ValueObjectSP valobj_sp)
+{
+    lldb::ProcessSP process_sp (valobj_sp->GetProcessSP());
+    if (!process_sp)
+        return NULL;
+    ObjCLanguageRuntime *runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    if (!runtime)
+        return NULL;
+    
+    CompilerType valobj_type(valobj_sp->GetCompilerType());
+    Flags flags(valobj_type.GetTypeInfo());
+    
+    if (flags.IsClear(eTypeIsPointer))
+    {
+        Error error;
+        valobj_sp = valobj_sp->AddressOf(error);
+        if (error.Fail() || !valobj_sp)
+            return NULL;
+    }
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(*valobj_sp.get()));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return NULL;
+    
+    ConstString class_name_cs = descriptor->GetClassName();
+    const char* class_name = class_name_cs.GetCString();
+    
+    if (!class_name || !*class_name)
+        return NULL;
+    
+    if (!strcmp(class_name,"__NSDictionaryI"))
+    {
+        return (new NSDictionaryISyntheticFrontEnd(valobj_sp));
+    }
+    else if (!strcmp(class_name,"__NSDictionaryM"))
+    {
+        return (new NSDictionaryMSyntheticFrontEnd(valobj_sp));
+    }
+    else
+    {
+        auto& map(NSDictionary_Additionals::GetAdditionalSynthetics());
+        auto iter = map.find(class_name_cs), end = map.end();
+        if (iter != end)
+            return iter->second(synth, valobj_sp);
+        return (new NSDictionaryCodeRunningSyntheticFrontEnd(valobj_sp));
+    }
+}
+
+lldb_private::formatters::NSDictionaryCodeRunningSyntheticFrontEnd::NSDictionaryCodeRunningSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get())
+{}
+
+size_t
+lldb_private::formatters::NSDictionaryCodeRunningSyntheticFrontEnd::CalculateNumChildren ()
+{
+    uint64_t count = 0;
+    if (ExtractValueFromObjCExpression(m_backend, "int", "count", count))
+        return count;
+    return 0;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::NSDictionaryCodeRunningSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    StreamString idx_name;
+    idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+    StreamString key_fetcher_expr;
+    key_fetcher_expr.Printf("(id)[(NSArray*)[(id)0x%" PRIx64 " allKeys] objectAtIndex:%" PRIu64 "]", m_backend.GetPointerValue(), (uint64_t)idx);
+    StreamString value_fetcher_expr;
+    value_fetcher_expr.Printf("(id)[(id)0x%" PRIx64 " objectForKey:(%s)]",m_backend.GetPointerValue(),key_fetcher_expr.GetData());
+    StreamString object_fetcher_expr;
+    object_fetcher_expr.Printf("struct __lldb_autogen_nspair { id key; id value; } _lldb_valgen_item; _lldb_valgen_item.key = %s; _lldb_valgen_item.value = %s; _lldb_valgen_item;",key_fetcher_expr.GetData(),value_fetcher_expr.GetData());
+    lldb::ValueObjectSP child_sp;
+    EvaluateExpressionOptions options;
+    options.SetKeepInMemory(true);
+    options.SetLanguage(lldb::eLanguageTypeObjC_plus_plus);
+    options.SetResultIsInternal(true);
+    m_backend.GetTargetSP()->EvaluateExpression(object_fetcher_expr.GetData(),
+                                                GetViableFrame(m_backend.GetTargetSP().get()),
+                                                child_sp,
+                                                options);
+    if (child_sp)
+        child_sp->SetName(ConstString(idx_name.GetData()));
+    return child_sp;
+}
+
+bool
+lldb_private::formatters::NSDictionaryCodeRunningSyntheticFrontEnd::Update()
+{
+    return false;
+}
+
+bool
+lldb_private::formatters::NSDictionaryCodeRunningSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+size_t
+lldb_private::formatters::NSDictionaryCodeRunningSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    return 0;
+}
+
+lldb_private::formatters::NSDictionaryISyntheticFrontEnd::NSDictionaryISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get()),
+m_exe_ctx_ref(),
+m_ptr_size(8),
+m_order(lldb::eByteOrderInvalid),
+m_data_32(NULL),
+m_data_64(NULL),
+m_pair_type()
+{
+}
+
+lldb_private::formatters::NSDictionaryISyntheticFrontEnd::~NSDictionaryISyntheticFrontEnd ()
+{
+    delete m_data_32;
+    m_data_32 = NULL;
+    delete m_data_64;
+    m_data_64 = NULL;
+}
+
+size_t
+lldb_private::formatters::NSDictionaryISyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    const char* item_name = name.GetCString();
+    uint32_t idx = ExtractIndexFromString(item_name);
+    if (idx < UINT32_MAX && idx >= CalculateNumChildren())
+        return UINT32_MAX;
+    return idx;
+}
+
+size_t
+lldb_private::formatters::NSDictionaryISyntheticFrontEnd::CalculateNumChildren ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return (m_data_32 ? m_data_32->_used : m_data_64->_used);
+}
+
+bool
+lldb_private::formatters::NSDictionaryISyntheticFrontEnd::Update()
+{
+    m_children.clear();
+    delete m_data_32;
+    m_data_32 = NULL;
+    delete m_data_64;
+    m_data_64 = NULL;
+    m_ptr_size = 0;
+    ValueObjectSP valobj_sp = m_backend.GetSP();
+    if (!valobj_sp)
+        return false;
+    m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
+    Error error;
+    error.Clear();
+    lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
+    if (!process_sp)
+        return false;
+    m_ptr_size = process_sp->GetAddressByteSize();
+    m_order = process_sp->GetByteOrder();
+    uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size;
+    if (m_ptr_size == 4)
+    {
+        m_data_32 = new DataDescriptor_32();
+        process_sp->ReadMemory (data_location, m_data_32, sizeof(DataDescriptor_32), error);
+    }
+    else
+    {
+        m_data_64 = new DataDescriptor_64();
+        process_sp->ReadMemory (data_location, m_data_64, sizeof(DataDescriptor_64), error);
+    }
+    if (error.Fail())
+        return false;
+    m_data_ptr = data_location + m_ptr_size;
+    return false;
+}
+
+bool
+lldb_private::formatters::NSDictionaryISyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::NSDictionaryISyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    uint32_t num_children = CalculateNumChildren();
+    
+    if (idx >= num_children)
+        return lldb::ValueObjectSP();
+    
+    if (m_children.empty())
+    {
+        // do the scan phase
+        lldb::addr_t key_at_idx = 0, val_at_idx = 0;
+        
+        uint32_t tries = 0;
+        uint32_t test_idx = 0;
+        
+        while(tries < num_children)
+        {
+            key_at_idx = m_data_ptr + (2*test_idx * m_ptr_size);
+            val_at_idx = key_at_idx + m_ptr_size;
+            ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP();
+            if (!process_sp)
+                return lldb::ValueObjectSP();
+            Error error;
+            key_at_idx = process_sp->ReadPointerFromMemory(key_at_idx, error);
+            if (error.Fail())
+                return lldb::ValueObjectSP();
+            val_at_idx = process_sp->ReadPointerFromMemory(val_at_idx, error);
+            if (error.Fail())
+                return lldb::ValueObjectSP();
+            
+            test_idx++;
+            
+            if (!key_at_idx || !val_at_idx)
+                continue;
+            tries++;
+            
+            DictionaryItemDescriptor descriptor = {key_at_idx,val_at_idx,lldb::ValueObjectSP()};
+            
+            m_children.push_back(descriptor);
+        }
+    }
+    
+    if (idx >= m_children.size()) // should never happen
+        return lldb::ValueObjectSP();
+    
+    DictionaryItemDescriptor &dict_item = m_children[idx];
+    if (!dict_item.valobj_sp)
+    {
+        if (!m_pair_type.IsValid())
+        {
+            TargetSP target_sp(m_backend.GetTargetSP());
+            if (!target_sp)
+                return ValueObjectSP();
+            m_pair_type = GetLLDBNSPairType(target_sp);
+        }
+        if (!m_pair_type.IsValid())
+            return ValueObjectSP();
+        
+        DataBufferSP buffer_sp(new DataBufferHeap(2*m_ptr_size,0));
+        
+        if (m_ptr_size == 8)
+        {
+            uint64_t *data_ptr = (uint64_t *)buffer_sp->GetBytes();
+            *data_ptr = dict_item.key_ptr;
+            *(data_ptr+1) = dict_item.val_ptr;
+        }
+        else
+        {
+            uint32_t *data_ptr = (uint32_t *)buffer_sp->GetBytes();
+            *data_ptr = dict_item.key_ptr;
+            *(data_ptr+1) = dict_item.val_ptr;
+        }
+        
+        StreamString idx_name;
+        idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+        DataExtractor data(buffer_sp, m_order, m_ptr_size);
+        dict_item.valobj_sp = CreateValueObjectFromData(idx_name.GetData(),
+                                                        data,
+                                                        m_exe_ctx_ref,
+                                                        m_pair_type);
+    }
+    return dict_item.valobj_sp;
+}
+
+lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::NSDictionaryMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get()),
+m_exe_ctx_ref(),
+m_ptr_size(8),
+m_order(lldb::eByteOrderInvalid),
+m_data_32(NULL),
+m_data_64(NULL),
+m_pair_type()
+{
+}
+
+lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::~NSDictionaryMSyntheticFrontEnd ()
+{
+    delete m_data_32;
+    m_data_32 = NULL;
+    delete m_data_64;
+    m_data_64 = NULL;
+}
+
+size_t
+lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    const char* item_name = name.GetCString();
+    uint32_t idx = ExtractIndexFromString(item_name);
+    if (idx < UINT32_MAX && idx >= CalculateNumChildren())
+        return UINT32_MAX;
+    return idx;
+}
+
+size_t
+lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::CalculateNumChildren ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return (m_data_32 ? m_data_32->_used : m_data_64->_used);
+}
+
+bool
+lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::Update()
+{
+    m_children.clear();
+    ValueObjectSP valobj_sp = m_backend.GetSP();
+    m_ptr_size = 0;
+    delete m_data_32;
+    m_data_32 = NULL;
+    delete m_data_64;
+    m_data_64 = NULL;
+    if (!valobj_sp)
+        return false;
+    m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
+    Error error;
+    error.Clear();
+    lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
+    if (!process_sp)
+        return false;
+    m_ptr_size = process_sp->GetAddressByteSize();
+    m_order = process_sp->GetByteOrder();
+    uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size;
+    if (m_ptr_size == 4)
+    {
+        m_data_32 = new DataDescriptor_32();
+        process_sp->ReadMemory (data_location, m_data_32, sizeof(DataDescriptor_32), error);
+    }
+    else
+    {
+        m_data_64 = new DataDescriptor_64();
+        process_sp->ReadMemory (data_location, m_data_64, sizeof(DataDescriptor_64), error);
+    }
+    if (error.Fail())
+        return false;
+    return false;
+}
+
+bool
+lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    lldb::addr_t m_keys_ptr = (m_data_32 ? m_data_32->_keys_addr : m_data_64->_keys_addr);
+    lldb::addr_t m_values_ptr = (m_data_32 ? m_data_32->_objs_addr : m_data_64->_objs_addr);
+    
+    uint32_t num_children = CalculateNumChildren();
+    
+    if (idx >= num_children)
+        return lldb::ValueObjectSP();
+    
+    if (m_children.empty())
+    {
+        // do the scan phase
+        lldb::addr_t key_at_idx = 0, val_at_idx = 0;
+        
+        uint32_t tries = 0;
+        uint32_t test_idx = 0;
+        
+        while(tries < num_children)
+        {
+            key_at_idx = m_keys_ptr + (test_idx * m_ptr_size);
+            val_at_idx = m_values_ptr + (test_idx * m_ptr_size);;
+            ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP();
+            if (!process_sp)
+                return lldb::ValueObjectSP();
+            Error error;
+            key_at_idx = process_sp->ReadPointerFromMemory(key_at_idx, error);
+            if (error.Fail())
+                return lldb::ValueObjectSP();
+            val_at_idx = process_sp->ReadPointerFromMemory(val_at_idx, error);
+            if (error.Fail())
+                return lldb::ValueObjectSP();
+            
+            test_idx++;
+            
+            if (!key_at_idx || !val_at_idx)
+                continue;
+            tries++;
+            
+            DictionaryItemDescriptor descriptor = {key_at_idx,val_at_idx,lldb::ValueObjectSP()};
+            
+            m_children.push_back(descriptor);
+        }
+    }
+    
+    if (idx >= m_children.size()) // should never happen
+        return lldb::ValueObjectSP();
+    
+    DictionaryItemDescriptor &dict_item = m_children[idx];
+    if (!dict_item.valobj_sp)
+    {
+        if (!m_pair_type.IsValid())
+        {
+            TargetSP target_sp(m_backend.GetTargetSP());
+            if (!target_sp)
+                return ValueObjectSP();
+            m_pair_type = GetLLDBNSPairType(target_sp);
+        }
+        if (!m_pair_type.IsValid())
+            return ValueObjectSP();
+        
+        DataBufferSP buffer_sp(new DataBufferHeap(2*m_ptr_size,0));
+        
+        if (m_ptr_size == 8)
+        {
+            uint64_t *data_ptr = (uint64_t *)buffer_sp->GetBytes();
+            *data_ptr = dict_item.key_ptr;
+            *(data_ptr+1) = dict_item.val_ptr;
+        }
+        else
+        {
+            uint32_t *data_ptr = (uint32_t *)buffer_sp->GetBytes();
+            *data_ptr = dict_item.key_ptr;
+            *(data_ptr+1) = dict_item.val_ptr;
+        }
+        
+        StreamString idx_name;
+        idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+        DataExtractor data(buffer_sp, m_order, m_ptr_size);
+        dict_item.valobj_sp = CreateValueObjectFromData(idx_name.GetData(),
+                                                        data,
+                                                        m_exe_ctx_ref,
+                                                        m_pair_type);
+    }
+    return dict_item.valobj_sp;
+}
+
+template bool
+lldb_private::formatters::NSDictionarySummaryProvider<true> (ValueObject&, Stream&, const TypeSummaryOptions&);
+
+template bool
+lldb_private::formatters::NSDictionarySummaryProvider<false> (ValueObject&, Stream&, const TypeSummaryOptions&);
diff --git a/source/Plugins/Language/ObjC/NSDictionary.h b/source/Plugins/Language/ObjC/NSDictionary.h
new file mode 100644
index 0000000000000..e96c25a97b2b4
--- /dev/null
+++ b/source/Plugins/Language/ObjC/NSDictionary.h
@@ -0,0 +1,48 @@
+//===-- NSDictionary.h ---------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_NSDictionary_h_
+#define liblldb_NSDictionary_h_
+
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/DataFormatters/TypeSummary.h"
+#include "lldb/DataFormatters/TypeSynthetic.h"
+
+#include <map>
+
+namespace lldb_private {
+    namespace formatters
+    {
+        template<bool name_entries>
+        bool
+        NSDictionarySummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+
+        extern template bool
+        NSDictionarySummaryProvider<true> (ValueObject&, Stream&, const TypeSummaryOptions&) ;
+        
+        extern template bool
+        NSDictionarySummaryProvider<false> (ValueObject&, Stream&, const TypeSummaryOptions&) ;
+        
+        SyntheticChildrenFrontEnd* NSDictionarySyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+        
+        class NSDictionary_Additionals
+        {
+        public:
+            static std::map<ConstString, CXXFunctionSummaryFormat::Callback>&
+            GetAdditionalSummaries ();
+            
+            static std::map<ConstString, CXXSyntheticChildren::CreateFrontEndCallback>&
+            GetAdditionalSynthetics ();
+        };
+    } // namespace formatters
+} // namespace lldb_private
+
+#endif // liblldb_NSDictionary_h_
diff --git a/source/Plugins/Language/ObjC/NSError.cpp b/source/Plugins/Language/ObjC/NSError.cpp
new file mode 100644
index 0000000000000..c627cd0319264
--- /dev/null
+++ b/source/Plugins/Language/ObjC/NSError.cpp
@@ -0,0 +1,218 @@
+//===-- NSError.cpp ---------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+#include "clang/AST/DeclCXX.h"
+
+// Project includes
+#include "Cocoa.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "lldb/Target/Target.h"
+
+#include "lldb/Utility/ProcessStructReader.h"
+
+#include "Plugins/Language/ObjC/NSString.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+bool
+lldb_private::formatters::NSError_SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    ProcessSP process_sp(valobj.GetProcessSP());
+    if (!process_sp)
+        return false;
+    
+    lldb::addr_t ptr_value = LLDB_INVALID_ADDRESS;
+    
+    CompilerType valobj_type(valobj.GetCompilerType());
+    Flags type_flags(valobj_type.GetTypeInfo());
+    if (type_flags.AllClear(eTypeHasValue))
+    {
+        if (valobj.IsBaseClass() && valobj.GetParent())
+            ptr_value = valobj.GetParent()->GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
+    }
+    else
+        ptr_value = valobj.GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
+
+    if (ptr_value == LLDB_INVALID_ADDRESS)
+        return false;
+    size_t ptr_size = process_sp->GetAddressByteSize();
+    lldb::addr_t code_location = ptr_value + 2 * ptr_size;
+    lldb::addr_t domain_location = ptr_value + 3 * ptr_size;
+    
+    Error error;
+    uint64_t code = process_sp->ReadUnsignedIntegerFromMemory(code_location, ptr_size, 0, error);
+    if (error.Fail())
+        return false;
+    
+    lldb::addr_t domain_str_value = process_sp->ReadPointerFromMemory(domain_location, error);
+    if (error.Fail() || domain_str_value == LLDB_INVALID_ADDRESS)
+        return false;
+    
+    if (!domain_str_value)
+    {
+        stream.Printf("domain: nil - code: %" PRIu64, code);
+        return true;
+    }
+    
+    InferiorSizedWord isw(domain_str_value, *process_sp);
+    
+    ValueObjectSP domain_str_sp = ValueObject::CreateValueObjectFromData("domain_str", isw.GetAsData(process_sp->GetByteOrder()), valobj.GetExecutionContextRef(), process_sp->GetTarget().GetScratchClangASTContext()->GetBasicType(lldb::eBasicTypeVoid).GetPointerType());
+    
+    if (!domain_str_sp)
+        return false;
+    
+    StreamString domain_str_summary;
+    if (NSStringSummaryProvider(*domain_str_sp, domain_str_summary, options) && !domain_str_summary.Empty())
+    {
+        stream.Printf("domain: %s - code: %" PRIu64, domain_str_summary.GetData(), code);
+        return true;
+    }
+    else
+    {
+        stream.Printf("domain: nil - code: %" PRIu64, code);
+        return true;
+    }
+}
+
+class NSErrorSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+{
+public:
+    NSErrorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+    SyntheticChildrenFrontEnd(*valobj_sp)
+    {}
+
+    ~NSErrorSyntheticFrontEnd() override = default;
+    // no need to delete m_child_ptr - it's kept alive by the cluster manager on our behalf
+
+    size_t
+    CalculateNumChildren() override
+    {
+        if (m_child_ptr)
+            return 1;
+        if (m_child_sp)
+            return 1;
+        return 0;
+    }
+    
+    lldb::ValueObjectSP
+    GetChildAtIndex(size_t idx) override
+    {
+        if (idx != 0)
+            return lldb::ValueObjectSP();
+        
+        if (m_child_ptr)
+            return m_child_ptr->GetSP();
+        return m_child_sp;
+    }
+    
+    bool
+    Update() override
+    {
+        m_child_ptr = nullptr;
+        m_child_sp.reset();
+        
+        ProcessSP process_sp(m_backend.GetProcessSP());
+        if (!process_sp)
+            return false;
+        
+        lldb::addr_t userinfo_location = LLDB_INVALID_ADDRESS;
+        
+        CompilerType valobj_type(m_backend.GetCompilerType());
+        Flags type_flags(valobj_type.GetTypeInfo());
+        if (type_flags.AllClear(eTypeHasValue))
+        {
+            if (m_backend.IsBaseClass() && m_backend.GetParent())
+                userinfo_location = m_backend.GetParent()->GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
+        }
+        else
+            userinfo_location = m_backend.GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
+
+        if (userinfo_location == LLDB_INVALID_ADDRESS)
+            return false;
+        
+        size_t ptr_size = process_sp->GetAddressByteSize();
+
+        userinfo_location += 4 * ptr_size;
+        Error error;
+        lldb::addr_t userinfo = process_sp->ReadPointerFromMemory(userinfo_location, error);
+        if (userinfo == LLDB_INVALID_ADDRESS || error.Fail())
+            return false;
+        InferiorSizedWord isw(userinfo,*process_sp);
+        m_child_sp = ValueObject::CreateValueObjectFromData("_userInfo",
+                                                            isw.GetAsData(process_sp->GetByteOrder()),
+                                                            m_backend.GetExecutionContextRef(),
+                                                            process_sp->GetTarget().GetScratchClangASTContext()->GetBasicType(lldb::eBasicTypeObjCID));
+        return false;
+    }
+    
+    bool
+    MightHaveChildren() override
+    {
+        return true;
+    }
+    
+    size_t
+    GetIndexOfChildWithName(const ConstString &name) override
+    {
+        static ConstString g___userInfo("_userInfo");
+        if (name == g___userInfo)
+            return 0;
+        return UINT32_MAX;
+    }
+
+private:
+    // the child here can be "real" (i.e. an actual child of the root) or synthetized from raw memory
+    // if the former, I need to store a plain pointer to it - or else a loop of references will cause this entire hierarchy of values to leak
+    // if the latter, then I need to store a SharedPointer to it - so that it only goes away when everyone else in the cluster goes away
+    // oh joy!
+    ValueObject* m_child_ptr;
+    ValueObjectSP m_child_sp;
+};
+
+SyntheticChildrenFrontEnd*
+lldb_private::formatters::NSErrorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    lldb::ProcessSP process_sp (valobj_sp->GetProcessSP());
+    if (!process_sp)
+        return nullptr;
+    ObjCLanguageRuntime *runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    if (!runtime)
+        return nullptr;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(*valobj_sp.get()));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return nullptr;
+    
+    const char* class_name = descriptor->GetClassName().GetCString();
+    
+    if (!class_name || !*class_name)
+        return nullptr;
+    
+    if (!strcmp(class_name,"NSError"))
+        return (new NSErrorSyntheticFrontEnd(valobj_sp));
+    else if (!strcmp(class_name,"__NSCFError"))
+        return (new NSErrorSyntheticFrontEnd(valobj_sp));
+    
+    return nullptr;
+}
diff --git a/source/Plugins/Language/ObjC/NSException.cpp b/source/Plugins/Language/ObjC/NSException.cpp
new file mode 100644
index 0000000000000..e58223a4d461e
--- /dev/null
+++ b/source/Plugins/Language/ObjC/NSException.cpp
@@ -0,0 +1,219 @@
+//===-- NSException.cpp -----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+#include "clang/AST/DeclCXX.h"
+
+// Project includes
+#include "Cocoa.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "lldb/Target/Target.h"
+
+#include "lldb/Utility/ProcessStructReader.h"
+
+#include "Plugins/Language/ObjC/NSString.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+bool
+lldb_private::formatters::NSException_SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    ProcessSP process_sp(valobj.GetProcessSP());
+    if (!process_sp)
+        return false;
+    
+    lldb::addr_t ptr_value = LLDB_INVALID_ADDRESS;
+    
+    CompilerType valobj_type(valobj.GetCompilerType());
+    Flags type_flags(valobj_type.GetTypeInfo());
+    if (type_flags.AllClear(eTypeHasValue))
+    {
+        if (valobj.IsBaseClass() && valobj.GetParent())
+            ptr_value = valobj.GetParent()->GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
+    }
+    else
+        ptr_value = valobj.GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
+    
+    if (ptr_value == LLDB_INVALID_ADDRESS)
+        return false;
+    size_t ptr_size = process_sp->GetAddressByteSize();
+    lldb::addr_t name_location = ptr_value + 1 * ptr_size;
+    lldb::addr_t reason_location = ptr_value + 2 * ptr_size;
+    
+    Error error;
+    lldb::addr_t name = process_sp->ReadPointerFromMemory(name_location, error);
+    if (error.Fail() || name == LLDB_INVALID_ADDRESS)
+        return false;
+    
+    lldb::addr_t reason = process_sp->ReadPointerFromMemory(reason_location, error);
+    if (error.Fail() || reason == LLDB_INVALID_ADDRESS)
+        return false;
+    
+    InferiorSizedWord name_isw(name, *process_sp);
+    InferiorSizedWord reason_isw(reason, *process_sp);
+    
+    CompilerType voidstar = process_sp->GetTarget().GetScratchClangASTContext()->GetBasicType(lldb::eBasicTypeVoid).GetPointerType();
+    
+    ValueObjectSP name_sp = ValueObject::CreateValueObjectFromData("name_str", name_isw.GetAsData(process_sp->GetByteOrder()), valobj.GetExecutionContextRef(), voidstar);
+    ValueObjectSP reason_sp = ValueObject::CreateValueObjectFromData("reason_str", reason_isw.GetAsData(process_sp->GetByteOrder()), valobj.GetExecutionContextRef(), voidstar);
+    
+    if (!name_sp || !reason_sp)
+        return false;
+    
+    StreamString name_str_summary;
+    StreamString reason_str_summary;
+    if (NSStringSummaryProvider(*name_sp, name_str_summary, options) &&
+        NSStringSummaryProvider(*reason_sp, reason_str_summary, options) &&
+        !name_str_summary.Empty() &&
+        !reason_str_summary.Empty())
+    {
+        stream.Printf("name: %s - reason: %s", name_str_summary.GetData(), reason_str_summary.GetData());
+        return true;
+    }
+    else
+        return false;
+}
+
+class NSExceptionSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+{
+public:
+    NSExceptionSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+    SyntheticChildrenFrontEnd(*valobj_sp)
+    {}
+
+    ~NSExceptionSyntheticFrontEnd() override = default;
+    // no need to delete m_child_ptr - it's kept alive by the cluster manager on our behalf
+
+    size_t
+    CalculateNumChildren() override
+    {
+        if (m_child_ptr)
+            return 1;
+        if (m_child_sp)
+            return 1;
+        return 0;
+    }
+    
+    lldb::ValueObjectSP
+    GetChildAtIndex(size_t idx) override
+    {
+        if (idx != 0)
+            return lldb::ValueObjectSP();
+        
+        if (m_child_ptr)
+            return m_child_ptr->GetSP();
+        return m_child_sp;
+    }
+    
+    bool
+    Update() override
+    {
+        m_child_ptr = nullptr;
+        m_child_sp.reset();
+        
+        ProcessSP process_sp(m_backend.GetProcessSP());
+        if (!process_sp)
+            return false;
+        
+        lldb::addr_t userinfo_location = LLDB_INVALID_ADDRESS;
+        
+        CompilerType valobj_type(m_backend.GetCompilerType());
+        Flags type_flags(valobj_type.GetTypeInfo());
+        if (type_flags.AllClear(eTypeHasValue))
+        {
+            if (m_backend.IsBaseClass() && m_backend.GetParent())
+                userinfo_location = m_backend.GetParent()->GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
+        }
+        else
+            userinfo_location = m_backend.GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
+        
+        if (userinfo_location == LLDB_INVALID_ADDRESS)
+            return false;
+        
+        size_t ptr_size = process_sp->GetAddressByteSize();
+        
+        userinfo_location += 3 * ptr_size;
+        Error error;
+        lldb::addr_t userinfo = process_sp->ReadPointerFromMemory(userinfo_location, error);
+        if (userinfo == LLDB_INVALID_ADDRESS || error.Fail())
+            return false;
+        InferiorSizedWord isw(userinfo,*process_sp);
+        m_child_sp = ValueObject::CreateValueObjectFromData("userInfo",
+                                                            isw.GetAsData(process_sp->GetByteOrder()),
+                                                            m_backend.GetExecutionContextRef(),
+                                                            process_sp->GetTarget().GetScratchClangASTContext()->GetBasicType(lldb::eBasicTypeObjCID));
+        return false;
+    }
+    
+    bool
+    MightHaveChildren() override
+    {
+        return true;
+    }
+    
+    size_t
+    GetIndexOfChildWithName(const ConstString &name) override
+    {
+        static ConstString g___userInfo("userInfo");
+        if (name == g___userInfo)
+            return 0;
+        return UINT32_MAX;
+    }
+
+private:
+    // the child here can be "real" (i.e. an actual child of the root) or synthetized from raw memory
+    // if the former, I need to store a plain pointer to it - or else a loop of references will cause this entire hierarchy of values to leak
+    // if the latter, then I need to store a SharedPointer to it - so that it only goes away when everyone else in the cluster goes away
+    // oh joy!
+    ValueObject* m_child_ptr;
+    ValueObjectSP m_child_sp;
+};
+
+SyntheticChildrenFrontEnd*
+lldb_private::formatters::NSExceptionSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+{
+    lldb::ProcessSP process_sp (valobj_sp->GetProcessSP());
+    if (!process_sp)
+        return nullptr;
+    ObjCLanguageRuntime *runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    if (!runtime)
+        return nullptr;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(*valobj_sp.get()));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return nullptr;
+    
+    const char* class_name = descriptor->GetClassName().GetCString();
+    
+    if (!class_name || !*class_name)
+        return nullptr;
+    
+    if (!strcmp(class_name,"NSException"))
+        return (new NSExceptionSyntheticFrontEnd(valobj_sp));
+    else if (!strcmp(class_name,"NSCFException"))
+        return (new NSExceptionSyntheticFrontEnd(valobj_sp));
+    else if (!strcmp(class_name,"__NSCFException"))
+        return (new NSExceptionSyntheticFrontEnd(valobj_sp));
+    
+    return nullptr;
+}
diff --git a/source/Plugins/Language/ObjC/NSIndexPath.cpp b/source/Plugins/Language/ObjC/NSIndexPath.cpp
new file mode 100644
index 0000000000000..245f6da80c7f1
--- /dev/null
+++ b/source/Plugins/Language/ObjC/NSIndexPath.cpp
@@ -0,0 +1,349 @@
+//===-- NSIndexPath.cpp -----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "Cocoa.h"
+
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/DataFormatters/TypeSynthetic.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/Target.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+class NSIndexPathSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+{
+public:
+    NSIndexPathSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+    SyntheticChildrenFrontEnd (*valobj_sp.get()),
+    m_ptr_size(0),
+    m_uint_star_type()
+    {
+        m_ptr_size = m_backend.GetTargetSP()->GetArchitecture().GetAddressByteSize();
+    }
+
+    ~NSIndexPathSyntheticFrontEnd() override = default;
+
+    size_t
+    CalculateNumChildren() override
+    {
+        return m_impl.GetNumIndexes();
+    }
+    
+    lldb::ValueObjectSP
+    GetChildAtIndex(size_t idx) override
+    {
+        return m_impl.GetIndexAtIndex(idx, m_uint_star_type);
+    }
+    
+    bool
+    Update() override
+    {
+        m_impl.Clear();
+        
+        TypeSystem* type_system = m_backend.GetCompilerType().GetTypeSystem();
+        if (!type_system)
+            return false;
+
+        ClangASTContext *ast = m_backend.GetExecutionContextRef().GetTargetSP()->GetScratchClangASTContext();
+        if (!ast)
+            return false;
+
+        m_uint_star_type = ast->GetPointerSizedIntType(false);
+        
+        static ConstString g__indexes("_indexes");
+        static ConstString g__length("_length");
+
+        ProcessSP process_sp = m_backend.GetProcessSP();
+        if (!process_sp)
+            return false;
+        
+        ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+        
+        if (!runtime)
+            return false;
+        
+        ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(m_backend));
+        
+        if (!descriptor.get() || !descriptor->IsValid())
+            return false;
+        
+        uint64_t info_bits(0),value_bits(0),payload(0);
+        
+        if (descriptor->GetTaggedPointerInfo(&info_bits, &value_bits, &payload))
+        {
+            m_impl.m_inlined.SetIndexes(payload, *process_sp);
+            m_impl.m_mode = Mode::Inlined;
+        }
+        else
+        {
+            ObjCLanguageRuntime::ClassDescriptor::iVarDescriptor _indexes_id;
+            ObjCLanguageRuntime::ClassDescriptor::iVarDescriptor _length_id;
+            
+            bool has_indexes(false),has_length(false);
+            
+            for (size_t x = 0;
+                 x < descriptor->GetNumIVars();
+                 x++)
+            {
+                const auto& ivar = descriptor->GetIVarAtIndex(x);
+                if (ivar.m_name == g__indexes)
+                {
+                    _indexes_id = ivar;
+                    has_indexes = true;
+                }
+                else if (ivar.m_name == g__length)
+                {
+                    _length_id = ivar;
+                    has_length = true;
+                }
+                
+                if (has_length && has_indexes)
+                    break;
+            }
+            
+            if (has_length && has_indexes)
+            {
+                m_impl.m_outsourced.m_indexes = m_backend.GetSyntheticChildAtOffset(_indexes_id.m_offset,
+                                                                                    m_uint_star_type.GetPointerType(),
+                                                                                    true).get();
+                ValueObjectSP length_sp(m_backend.GetSyntheticChildAtOffset(_length_id.m_offset,
+                                                                            m_uint_star_type,
+                                                                            true));
+                if (length_sp)
+                {
+                    m_impl.m_outsourced.m_count = length_sp->GetValueAsUnsigned(0);
+                    if (m_impl.m_outsourced.m_indexes)
+                        m_impl.m_mode = Mode::Outsourced;
+                }
+            }
+        }
+        return false;
+    }
+    
+    bool
+    MightHaveChildren() override
+    {
+        if (m_impl.m_mode == Mode::Invalid)
+            return false;
+        return true;
+    }
+    
+    size_t
+    GetIndexOfChildWithName(const ConstString &name) override
+    {
+        const char* item_name = name.GetCString();
+        uint32_t idx = ExtractIndexFromString(item_name);
+        if (idx < UINT32_MAX && idx >= CalculateNumChildren())
+            return UINT32_MAX;
+        return idx;
+    }
+    
+    lldb::ValueObjectSP
+    GetSyntheticValue() override
+    {
+        return nullptr;
+    }
+
+protected:
+    ObjCLanguageRuntime::ClassDescriptorSP m_descriptor_sp;
+    
+    enum class Mode {
+        Inlined,
+        Outsourced,
+        Invalid
+    };
+    
+    struct Impl {
+        Mode m_mode;
+
+        size_t
+        GetNumIndexes ()
+        {
+            switch (m_mode)
+            {
+                case Mode::Inlined:
+                    return m_inlined.GetNumIndexes();
+                case Mode::Outsourced:
+                    return m_outsourced.m_count;
+                default:
+                    return 0;
+            }
+        }
+        
+        lldb::ValueObjectSP
+        GetIndexAtIndex (size_t idx, const CompilerType& desired_type)
+        {
+            if (idx >= GetNumIndexes())
+                return nullptr;
+            switch (m_mode)
+            {
+                default: return nullptr;
+                case Mode::Inlined:
+                    return m_inlined.GetIndexAtIndex (idx, desired_type);
+                case Mode::Outsourced:
+                    return m_outsourced.GetIndexAtIndex (idx);
+            }
+        }
+
+        struct InlinedIndexes {
+        public:
+          void SetIndexes(uint64_t value, Process& p)
+          {
+              m_indexes = value;
+              _lengthForInlinePayload(p.GetAddressByteSize());
+              m_process = &p;
+          }
+              
+          size_t
+          GetNumIndexes ()
+          {
+              return m_count;
+          }
+
+          lldb::ValueObjectSP
+          GetIndexAtIndex (size_t idx, const CompilerType& desired_type)
+          {
+              std::pair<uint64_t, bool> value(_indexAtPositionForInlinePayload(idx));
+              if (!value.second)
+                  return nullptr;
+              
+              Value v;
+              if (m_ptr_size == 8)
+              {
+                  Scalar scalar( (unsigned long long)value.first );
+                  v = Value(scalar);
+              }
+              else
+              {
+                  Scalar scalar( (unsigned int)value.first );
+                  v = Value(scalar);
+              }
+
+              v.SetCompilerType(desired_type);
+
+              StreamString idx_name;
+              idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+
+              return ValueObjectConstResult::Create(m_process, v, ConstString(idx_name.GetData()));
+          }
+            
+            void
+            Clear ()
+            {
+                m_indexes = 0;
+                m_count = 0;
+                m_ptr_size = 0;
+                m_process = nullptr;
+            }
+                    
+        private:
+          uint64_t m_indexes;
+          size_t m_count;
+          uint32_t m_ptr_size;
+          Process *m_process;
+                    
+          // cfr. Foundation for the details of this code
+          size_t _lengthForInlinePayload(uint32_t ptr_size) {
+              m_ptr_size = ptr_size;
+              if (m_ptr_size == 8)
+              m_count = ((m_indexes >> 3) & 0x7);
+              else
+              m_count = ((m_indexes >> 3) & 0x3);
+              return m_count;
+          }
+                    
+          std::pair<uint64_t, bool>
+          _indexAtPositionForInlinePayload(size_t pos)
+          {
+              if (m_ptr_size == 8)
+              {
+                switch (pos) {
+                    case 5: return {((m_indexes >> 51) & 0x1ff),true};
+                    case 4: return {((m_indexes >> 42) & 0x1ff),true};
+                    case 3: return {((m_indexes >> 33) & 0x1ff),true};
+                    case 2: return {((m_indexes >> 24) & 0x1ff),true};
+                    case 1: return {((m_indexes >> 15) & 0x1ff),true};
+                    case 0: return {((m_indexes >>  6) & 0x1ff),true};
+                }
+              }
+              else
+                  {
+                  switch (pos) {
+                      case 2: return {((m_indexes >> 23) & 0x1ff),true};
+                      case 1: return {((m_indexes >> 14) & 0x1ff),true};
+                      case 0: return {((m_indexes >>  5) & 0x1ff),true};
+                  }
+              }
+              return {0,false};
+          }
+
+        };
+        struct OutsourcedIndexes {
+            ValueObject *m_indexes;
+            size_t m_count;
+                    
+            lldb::ValueObjectSP
+            GetIndexAtIndex (size_t idx)
+            {
+                if (m_indexes)
+                {
+                    ValueObjectSP index_sp(m_indexes->GetSyntheticArrayMember(idx, true));
+                    return index_sp;
+                }
+                return nullptr;
+            }
+            
+            void
+            Clear ()
+            {
+                m_indexes = nullptr;
+                m_count = 0;
+            }
+        };
+
+        union {
+            struct InlinedIndexes m_inlined;
+            struct OutsourcedIndexes m_outsourced;
+        };
+        
+        void
+        Clear ()
+        {
+            m_mode = Mode::Invalid;
+            m_inlined.Clear();
+            m_outsourced.Clear();
+        }
+    } m_impl;
+    
+    uint32_t m_ptr_size;
+    CompilerType m_uint_star_type;
+};
+
+namespace lldb_private {
+    namespace formatters {
+        
+        SyntheticChildrenFrontEnd* NSIndexPathSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
+        {
+            if (valobj_sp)
+                return new NSIndexPathSyntheticFrontEnd(valobj_sp);
+            return nullptr;
+        }
+
+    } // namespace formatters
+} // namespace lldb_private
diff --git a/source/Plugins/Language/ObjC/NSSet.cpp b/source/Plugins/Language/ObjC/NSSet.cpp
new file mode 100644
index 0000000000000..93115957e329a
--- /dev/null
+++ b/source/Plugins/Language/ObjC/NSSet.cpp
@@ -0,0 +1,758 @@
+//===-- NSSet.cpp -----------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "NSSet.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/Language.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "lldb/Target/Target.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+std::map<ConstString, CXXFunctionSummaryFormat::Callback>&
+NSSet_Additionals::GetAdditionalSummaries ()
+{
+    static std::map<ConstString, CXXFunctionSummaryFormat::Callback> g_map;
+    return g_map;
+}
+
+std::map<ConstString, CXXSyntheticChildren::CreateFrontEndCallback>&
+NSSet_Additionals::GetAdditionalSynthetics ()
+{
+    static std::map<ConstString, CXXSyntheticChildren::CreateFrontEndCallback> g_map;
+    return g_map;
+}
+
+namespace lldb_private {
+    namespace formatters {
+        class NSSetISyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            NSSetISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~NSSetISyntheticFrontEnd() override;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+
+        private:
+            struct DataDescriptor_32
+            {
+                uint32_t _used : 26;
+                uint32_t _szidx : 6;
+            };
+
+            struct DataDescriptor_64
+            {
+                uint64_t _used : 58;
+                uint32_t _szidx : 6;
+            };
+
+            struct SetItemDescriptor
+            {
+                lldb::addr_t item_ptr;
+                lldb::ValueObjectSP valobj_sp;
+            };
+
+            ExecutionContextRef m_exe_ctx_ref;
+            uint8_t m_ptr_size;
+            DataDescriptor_32 *m_data_32;
+            DataDescriptor_64 *m_data_64;
+            lldb::addr_t m_data_ptr;
+            std::vector<SetItemDescriptor> m_children;
+        };
+        
+        class NSOrderedSetSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            NSOrderedSetSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~NSOrderedSetSyntheticFrontEnd() override = default;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+
+        private:
+            uint32_t m_count;
+            std::map<uint32_t,lldb::ValueObjectSP> m_children;
+        };
+        
+        class NSSetMSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            NSSetMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~NSSetMSyntheticFrontEnd() override;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+
+        private:
+            struct DataDescriptor_32
+            {
+                uint32_t _used : 26;
+                uint32_t _size;
+                uint32_t _mutations;
+                uint32_t _objs_addr;
+            };
+
+            struct DataDescriptor_64
+            {
+                uint64_t _used : 58;
+                uint64_t _size;
+                uint64_t _mutations;
+                uint64_t _objs_addr;
+            };
+
+            struct SetItemDescriptor
+            {
+                lldb::addr_t item_ptr;
+                lldb::ValueObjectSP valobj_sp;
+            };
+
+            ExecutionContextRef m_exe_ctx_ref;
+            uint8_t m_ptr_size;
+            DataDescriptor_32 *m_data_32;
+            DataDescriptor_64 *m_data_64;
+            std::vector<SetItemDescriptor> m_children;
+        };
+        
+        class NSSetCodeRunningSyntheticFrontEnd : public SyntheticChildrenFrontEnd
+        {
+        public:
+            NSSetCodeRunningSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
+
+            ~NSSetCodeRunningSyntheticFrontEnd() override;
+
+            size_t
+            CalculateNumChildren() override;
+            
+            lldb::ValueObjectSP
+            GetChildAtIndex(size_t idx) override;
+            
+            bool
+            Update() override;
+            
+            bool
+            MightHaveChildren() override;
+            
+            size_t
+            GetIndexOfChildWithName(const ConstString &name) override;
+        };
+    } // namespace formatters
+} // namespace lldb_private
+
+template<bool cf_style>
+bool
+lldb_private::formatters::NSSetSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    static ConstString g_TypeHint("NSSet");
+    
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    bool is_64bit = (ptr_size == 8);
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    uint64_t value = 0;
+    
+    ConstString class_name_cs = descriptor->GetClassName();
+    const char* class_name = class_name_cs.GetCString();
+    
+    if (!class_name || !*class_name)
+        return false;
+    
+    if (!strcmp(class_name,"__NSSetI"))
+    {
+        Error error;
+        value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
+        if (error.Fail())
+            return false;
+        value &= (is_64bit ? ~0xFC00000000000000UL : ~0xFC000000U);
+    }
+    else if (!strcmp(class_name,"__NSSetM"))
+    {
+        Error error;
+        value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
+        if (error.Fail())
+            return false;
+        value &= (is_64bit ? ~0xFC00000000000000UL : ~0xFC000000U);
+    }
+    /*else if (!strcmp(class_name,"__NSCFSet"))
+     {
+     Error error;
+     value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + (is_64bit ? 20 : 12), 4, 0, error);
+     if (error.Fail())
+     return false;
+     if (is_64bit)
+     value &= ~0x1fff000000000000UL;
+     }
+     else if (!strcmp(class_name,"NSCountedSet"))
+     {
+     Error error;
+     value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
+     if (error.Fail())
+     return false;
+     value = process_sp->ReadUnsignedIntegerFromMemory(value + (is_64bit ? 20 : 12), 4, 0, error);
+     if (error.Fail())
+     return false;
+     if (is_64bit)
+     value &= ~0x1fff000000000000UL;
+     }*/
+    else
+    {
+        auto& map(NSSet_Additionals::GetAdditionalSummaries());
+        auto iter = map.find(class_name_cs), end = map.end();
+        if (iter != end)
+            return iter->second(valobj, stream, options);
+        if (!ExtractValueFromObjCExpression(valobj, "int", "count", value))
+            return false;
+    }
+    
+    std::string prefix,suffix;
+    if (Language* language = Language::FindPlugin(options.GetLanguage()))
+    {
+        if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
+        {
+            prefix.clear();
+            suffix.clear();
+        }
+    }
+    
+    stream.Printf("%s%" PRIu64 " %s%s%s",
+                  prefix.c_str(),
+                  value,
+                  "element",
+                  value == 1 ? "" : "s",
+                  suffix.c_str());
+    return true;
+}
+
+SyntheticChildrenFrontEnd* lldb_private::formatters::NSSetSyntheticFrontEndCreator (CXXSyntheticChildren* synth, lldb::ValueObjectSP valobj_sp)
+{
+    lldb::ProcessSP process_sp (valobj_sp->GetProcessSP());
+    if (!process_sp)
+        return NULL;
+    ObjCLanguageRuntime *runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    if (!runtime)
+        return NULL;
+    
+    CompilerType valobj_type(valobj_sp->GetCompilerType());
+    Flags flags(valobj_type.GetTypeInfo());
+    
+    if (flags.IsClear(eTypeIsPointer))
+    {
+        Error error;
+        valobj_sp = valobj_sp->AddressOf(error);
+        if (error.Fail() || !valobj_sp)
+            return NULL;
+    }
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(*valobj_sp.get()));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return NULL;
+    
+    ConstString class_name_cs = descriptor->GetClassName();
+    const char* class_name = class_name_cs.GetCString();
+    
+    if (!class_name || !*class_name)
+        return NULL;
+    
+    if (!strcmp(class_name,"__NSSetI"))
+    {
+        return (new NSSetISyntheticFrontEnd(valobj_sp));
+    }
+    else if (!strcmp(class_name,"__NSSetM"))
+    {
+        return (new NSSetMSyntheticFrontEnd(valobj_sp));
+    }
+    else if ((!strcmp(class_name,"__NSOrderedSetI")) || (!strcmp(class_name,"__NSOrderedSetM")))
+    {
+        return new NSOrderedSetSyntheticFrontEnd(valobj_sp); // this runs code
+    }
+    else
+    {
+        auto& map(NSSet_Additionals::GetAdditionalSynthetics());
+        auto iter = map.find(class_name_cs), end = map.end();
+        if (iter != end)
+            return iter->second(synth, valobj_sp);
+        return /*(new NSSetCodeRunningSyntheticFrontEnd(valobj_sp))*/ NULL;
+    }
+}
+
+lldb_private::formatters::NSSetISyntheticFrontEnd::NSSetISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get()),
+m_exe_ctx_ref(),
+m_ptr_size(8),
+m_data_32(NULL),
+m_data_64(NULL)
+{
+    if (valobj_sp)
+        Update();
+}
+
+lldb_private::formatters::NSSetISyntheticFrontEnd::~NSSetISyntheticFrontEnd ()
+{
+    delete m_data_32;
+    m_data_32 = NULL;
+    delete m_data_64;
+    m_data_64 = NULL;
+}
+
+size_t
+lldb_private::formatters::NSSetISyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    const char* item_name = name.GetCString();
+    uint32_t idx = ExtractIndexFromString(item_name);
+    if (idx < UINT32_MAX && idx >= CalculateNumChildren())
+        return UINT32_MAX;
+    return idx;
+}
+
+size_t
+lldb_private::formatters::NSSetISyntheticFrontEnd::CalculateNumChildren ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return (m_data_32 ? m_data_32->_used : m_data_64->_used);
+}
+
+bool
+lldb_private::formatters::NSSetISyntheticFrontEnd::Update()
+{
+    m_children.clear();
+    delete m_data_32;
+    m_data_32 = NULL;
+    delete m_data_64;
+    m_data_64 = NULL;
+    m_ptr_size = 0;
+    ValueObjectSP valobj_sp = m_backend.GetSP();
+    if (!valobj_sp)
+        return false;
+    if (!valobj_sp)
+        return false;
+    m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
+    Error error;
+    if (valobj_sp->IsPointerType())
+    {
+        valobj_sp = valobj_sp->Dereference(error);
+        if (error.Fail() || !valobj_sp)
+            return false;
+    }
+    error.Clear();
+    lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
+    if (!process_sp)
+        return false;
+    m_ptr_size = process_sp->GetAddressByteSize();
+    uint64_t data_location = valobj_sp->GetAddressOf() + m_ptr_size;
+    if (m_ptr_size == 4)
+    {
+        m_data_32 = new DataDescriptor_32();
+        process_sp->ReadMemory (data_location, m_data_32, sizeof(DataDescriptor_32), error);
+    }
+    else
+    {
+        m_data_64 = new DataDescriptor_64();
+        process_sp->ReadMemory (data_location, m_data_64, sizeof(DataDescriptor_64), error);
+    }
+    if (error.Fail())
+        return false;
+    m_data_ptr = data_location + m_ptr_size;
+    return false;
+}
+
+bool
+lldb_private::formatters::NSSetISyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::NSSetISyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    uint32_t num_children = CalculateNumChildren();
+    
+    if (idx >= num_children)
+        return lldb::ValueObjectSP();
+    
+    ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP();
+    if (!process_sp)
+        return lldb::ValueObjectSP();
+    
+    if (m_children.empty())
+    {
+        // do the scan phase
+        lldb::addr_t obj_at_idx = 0;
+        
+        uint32_t tries = 0;
+        uint32_t test_idx = 0;
+        
+        while(tries < num_children)
+        {
+            obj_at_idx = m_data_ptr + (test_idx * m_ptr_size);
+            if (!process_sp)
+                return lldb::ValueObjectSP();
+            Error error;
+            obj_at_idx = process_sp->ReadPointerFromMemory(obj_at_idx, error);
+            if (error.Fail())
+                return lldb::ValueObjectSP();
+            
+            test_idx++;
+            
+            if (!obj_at_idx)
+                continue;
+            tries++;
+            
+            SetItemDescriptor descriptor = {obj_at_idx,lldb::ValueObjectSP()};
+            
+            m_children.push_back(descriptor);
+        }
+    }
+    
+    if (idx >= m_children.size()) // should never happen
+        return lldb::ValueObjectSP();
+    
+    SetItemDescriptor &set_item = m_children[idx];
+    if (!set_item.valobj_sp)
+    {
+        auto ptr_size = process_sp->GetAddressByteSize();
+        DataBufferHeap buffer(ptr_size,0);
+        switch (ptr_size)
+        {
+            case 0: // architecture has no clue?? - fail
+                return lldb::ValueObjectSP();
+            case 4:
+                *((uint32_t*)buffer.GetBytes()) = (uint32_t)set_item.item_ptr;
+                break;
+            case 8:
+                *((uint64_t*)buffer.GetBytes()) = (uint64_t)set_item.item_ptr;
+                break;
+            default:
+                assert(false && "pointer size is not 4 nor 8 - get out of here ASAP");
+        }
+        StreamString idx_name;
+        idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+        
+        DataExtractor data(buffer.GetBytes(),
+                           buffer.GetByteSize(),
+                           process_sp->GetByteOrder(),
+                           process_sp->GetAddressByteSize());
+        
+        set_item.valobj_sp =
+        CreateValueObjectFromData(idx_name.GetData(),
+                                  data,
+                                  m_exe_ctx_ref,
+                                  m_backend.GetCompilerType().GetBasicTypeFromAST(lldb::eBasicTypeObjCID));
+    }
+    return set_item.valobj_sp;
+}
+
+lldb_private::formatters::NSSetMSyntheticFrontEnd::NSSetMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get()),
+m_exe_ctx_ref(),
+m_ptr_size(8),
+m_data_32(NULL),
+m_data_64(NULL)
+{
+    if (valobj_sp)
+        Update ();
+}
+
+lldb_private::formatters::NSSetMSyntheticFrontEnd::~NSSetMSyntheticFrontEnd ()
+{
+    delete m_data_32;
+    m_data_32 = NULL;
+    delete m_data_64;
+    m_data_64 = NULL;
+}
+
+size_t
+lldb_private::formatters::NSSetMSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    const char* item_name = name.GetCString();
+    uint32_t idx = ExtractIndexFromString(item_name);
+    if (idx < UINT32_MAX && idx >= CalculateNumChildren())
+        return UINT32_MAX;
+    return idx;
+}
+
+size_t
+lldb_private::formatters::NSSetMSyntheticFrontEnd::CalculateNumChildren ()
+{
+    if (!m_data_32 && !m_data_64)
+        return 0;
+    return (m_data_32 ? m_data_32->_used : m_data_64->_used);
+}
+
+bool
+lldb_private::formatters::NSSetMSyntheticFrontEnd::Update()
+{
+    m_children.clear();
+    ValueObjectSP valobj_sp = m_backend.GetSP();
+    m_ptr_size = 0;
+    delete m_data_32;
+    m_data_32 = NULL;
+    delete m_data_64;
+    m_data_64 = NULL;
+    if (!valobj_sp)
+        return false;
+    if (!valobj_sp)
+        return false;
+    m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
+    Error error;
+    if (valobj_sp->IsPointerType())
+    {
+        valobj_sp = valobj_sp->Dereference(error);
+        if (error.Fail() || !valobj_sp)
+            return false;
+    }
+    error.Clear();
+    lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
+    if (!process_sp)
+        return false;
+    m_ptr_size = process_sp->GetAddressByteSize();
+    uint64_t data_location = valobj_sp->GetAddressOf() + m_ptr_size;
+    if (m_ptr_size == 4)
+    {
+        m_data_32 = new DataDescriptor_32();
+        process_sp->ReadMemory (data_location, m_data_32, sizeof(DataDescriptor_32), error);
+    }
+    else
+    {
+        m_data_64 = new DataDescriptor_64();
+        process_sp->ReadMemory (data_location, m_data_64, sizeof(DataDescriptor_64), error);
+    }
+    if (error.Fail())
+        return false;
+    return false;
+}
+
+bool
+lldb_private::formatters::NSSetMSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::NSSetMSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    lldb::addr_t m_objs_addr = (m_data_32 ? m_data_32->_objs_addr : m_data_64->_objs_addr);
+    
+    uint32_t num_children = CalculateNumChildren();
+    
+    if (idx >= num_children)
+        return lldb::ValueObjectSP();
+    
+    ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP();
+    if (!process_sp)
+        return lldb::ValueObjectSP();
+    
+    if (m_children.empty())
+    {
+        // do the scan phase
+        lldb::addr_t obj_at_idx = 0;
+        
+        uint32_t tries = 0;
+        uint32_t test_idx = 0;
+        
+        while(tries < num_children)
+        {
+            obj_at_idx = m_objs_addr + (test_idx * m_ptr_size);
+            if (!process_sp)
+                return lldb::ValueObjectSP();
+            Error error;
+            obj_at_idx = process_sp->ReadPointerFromMemory(obj_at_idx, error);
+            if (error.Fail())
+                return lldb::ValueObjectSP();
+            
+            test_idx++;
+            
+            if (!obj_at_idx)
+                continue;
+            tries++;
+            
+            SetItemDescriptor descriptor = {obj_at_idx,lldb::ValueObjectSP()};
+            
+            m_children.push_back(descriptor);
+        }
+    }
+    
+    if (idx >= m_children.size()) // should never happen
+        return lldb::ValueObjectSP();
+    
+    SetItemDescriptor &set_item = m_children[idx];
+    if (!set_item.valobj_sp)
+    {
+        auto ptr_size = process_sp->GetAddressByteSize();
+        DataBufferHeap buffer(ptr_size,0);
+        switch (ptr_size)
+        {
+            case 0: // architecture has no clue?? - fail
+                return lldb::ValueObjectSP();
+            case 4:
+                *((uint32_t*)buffer.GetBytes()) = (uint32_t)set_item.item_ptr;
+                break;
+            case 8:
+                *((uint64_t*)buffer.GetBytes()) = (uint64_t)set_item.item_ptr;
+                break;
+            default:
+                assert(false && "pointer size is not 4 nor 8 - get out of here ASAP");
+        }
+        StreamString idx_name;
+        idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+        
+        DataExtractor data(buffer.GetBytes(),
+                           buffer.GetByteSize(),
+                           process_sp->GetByteOrder(),
+                           process_sp->GetAddressByteSize());
+        
+        set_item.valobj_sp =
+        CreateValueObjectFromData(idx_name.GetData(),
+                                  data,
+                                  m_exe_ctx_ref,
+                                  m_backend.GetCompilerType().GetBasicTypeFromAST(lldb::eBasicTypeObjCID));
+    }
+    return set_item.valobj_sp;
+}
+
+lldb_private::formatters::NSOrderedSetSyntheticFrontEnd::NSOrderedSetSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
+SyntheticChildrenFrontEnd(*valobj_sp.get()),
+m_count(UINT32_MAX),
+m_children()
+{}
+
+size_t
+lldb_private::formatters::NSOrderedSetSyntheticFrontEnd::CalculateNumChildren ()
+{
+    if (m_count != UINT32_MAX)
+        return m_count;
+    uint64_t count_temp;
+    if (ExtractValueFromObjCExpression(m_backend,"unsigned int","count",count_temp))
+        return (m_count = count_temp);
+    return (m_count = 0);
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::NSOrderedSetSyntheticFrontEnd::GetChildAtIndex (size_t idx)
+{
+    auto iter = m_children.find(idx);
+    if (iter == m_children.end())
+    {
+        lldb::ValueObjectSP retval_sp;
+        if (idx <= m_count)
+        {
+            retval_sp = CallSelectorOnObject(m_backend, "id", "objectAtIndex", idx);
+            if (retval_sp)
+            {
+                StreamString idx_name;
+                idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+                retval_sp->SetName(ConstString(idx_name.GetData()));
+            }
+            m_children[idx] = retval_sp;
+        }
+        return retval_sp;
+    }
+    else
+        return iter->second;
+}
+
+bool
+lldb_private::formatters::NSOrderedSetSyntheticFrontEnd::Update()
+{
+    return false;
+}
+
+bool
+lldb_private::formatters::NSOrderedSetSyntheticFrontEnd::MightHaveChildren ()
+{
+    return true;
+}
+
+size_t
+lldb_private::formatters::NSOrderedSetSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
+{
+    const char* item_name = name.GetCString();
+    uint32_t idx = ExtractIndexFromString(item_name);
+    if (idx < UINT32_MAX && idx >= CalculateNumChildren())
+        return UINT32_MAX;
+    return idx;
+}
+
+template bool
+lldb_private::formatters::NSSetSummaryProvider<true> (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+
+template bool
+lldb_private::formatters::NSSetSummaryProvider<false> (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
diff --git a/source/Plugins/Language/ObjC/NSSet.h b/source/Plugins/Language/ObjC/NSSet.h
new file mode 100644
index 0000000000000..c8622706e860d
--- /dev/null
+++ b/source/Plugins/Language/ObjC/NSSet.h
@@ -0,0 +1,40 @@
+//===-- NSSet.h ---------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_NSSet_h_
+#define liblldb_NSSet_h_
+
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/DataFormatters/TypeSummary.h"
+#include "lldb/DataFormatters/TypeSynthetic.h"
+
+namespace lldb_private {
+    namespace formatters
+    {
+        template<bool cf_style>
+        bool
+        NSSetSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        SyntheticChildrenFrontEnd* NSSetSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP);
+        
+        class NSSet_Additionals
+        {
+        public:
+            static std::map<ConstString, CXXFunctionSummaryFormat::Callback>&
+            GetAdditionalSummaries ();
+            
+            static std::map<ConstString, CXXSyntheticChildren::CreateFrontEndCallback>&
+            GetAdditionalSynthetics ();
+        };
+    } // namespace formatters
+} // namespace lldb_private
+
+#endif // liblldb_NSSet_h_
diff --git a/source/Plugins/Language/ObjC/NSString.cpp b/source/Plugins/Language/ObjC/NSString.cpp
new file mode 100644
index 0000000000000..80896631baf3c
--- /dev/null
+++ b/source/Plugins/Language/ObjC/NSString.cpp
@@ -0,0 +1,405 @@
+//===-- NSString.cpp ----------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "NSString.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/DataFormatters/StringPrinter.h"
+#include "lldb/Host/Endian.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/Language.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Utility/ProcessStructReader.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+std::map<ConstString, CXXFunctionSummaryFormat::Callback>&
+NSString_Additionals::GetAdditionalSummaries ()
+{
+    static std::map<ConstString, CXXFunctionSummaryFormat::Callback> g_map;
+    return g_map;
+}
+
+static CompilerType
+GetNSPathStore2Type (Target &target)
+{
+    static ConstString g_type_name("__lldb_autogen_nspathstore2");
+    
+    ClangASTContext *ast_ctx = target.GetScratchClangASTContext();
+    
+    if (!ast_ctx)
+        return CompilerType();
+    
+    CompilerType voidstar = ast_ctx->GetBasicType(lldb::eBasicTypeVoid).GetPointerType();
+    CompilerType uint32 = ast_ctx->GetBuiltinTypeForEncodingAndBitSize(eEncodingUint, 32);
+    
+    return ast_ctx->GetOrCreateStructForIdentifier(g_type_name, {
+        {"isa",voidstar},
+        {"lengthAndRef",uint32},
+        {"buffer",voidstar}
+    });
+}
+
+bool
+lldb_private::formatters::NSStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& summary_options)
+{
+    static ConstString g_TypeHint("NSString");
+    
+    ProcessSP process_sp = valobj.GetProcessSP();
+    if (!process_sp)
+        return false;
+    
+    ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
+    
+    if (!runtime)
+        return false;
+    
+    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
+    
+    if (!descriptor.get() || !descriptor->IsValid())
+        return false;
+    
+    uint32_t ptr_size = process_sp->GetAddressByteSize();
+    
+    lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
+    
+    if (!valobj_addr)
+        return false;
+    
+    ConstString class_name_cs = descriptor->GetClassName();
+    const char* class_name = class_name_cs.GetCString();
+    
+    if (!class_name || !*class_name)
+        return false;
+    
+    bool is_tagged_ptr = (0 == strcmp(class_name,"NSTaggedPointerString")) && descriptor->GetTaggedPointerInfo();
+    // for a tagged pointer, the descriptor has everything we need
+    if (is_tagged_ptr)
+        return NSTaggedString_SummaryProvider(valobj, descriptor, stream, summary_options);
+    
+    auto& additionals_map(NSString_Additionals::GetAdditionalSummaries());
+    auto iter = additionals_map.find(class_name_cs), end = additionals_map.end();
+    if (iter != end)
+        return iter->second(valobj, stream, summary_options);
+    
+    // if not a tagged pointer that we know about, try the normal route
+    uint64_t info_bits_location = valobj_addr + ptr_size;
+    if (process_sp->GetByteOrder() != lldb::eByteOrderLittle)
+        info_bits_location += 3;
+    
+    Error error;
+    
+    uint8_t info_bits = process_sp->ReadUnsignedIntegerFromMemory(info_bits_location, 1, 0, error);
+    if (error.Fail())
+        return false;
+    
+    bool is_mutable = (info_bits & 1) == 1;
+    bool is_inline = (info_bits & 0x60) == 0;
+    bool has_explicit_length = (info_bits & (1 | 4)) != 4;
+    bool is_unicode = (info_bits & 0x10) == 0x10;
+    bool is_path_store = strcmp(class_name,"NSPathStore2") == 0;
+    bool has_null = (info_bits & 8) == 8;
+    
+    size_t explicit_length = 0;
+    if (!has_null && has_explicit_length && !is_path_store)
+    {
+        lldb::addr_t explicit_length_offset = 2*ptr_size;
+        if (is_mutable && !is_inline)
+            explicit_length_offset = explicit_length_offset + ptr_size; //  notInlineMutable.length;
+        else if (is_inline)
+            explicit_length = explicit_length + 0; // inline1.length;
+        else if (!is_inline && !is_mutable)
+            explicit_length_offset = explicit_length_offset + ptr_size; // notInlineImmutable1.length;
+        else
+            explicit_length_offset = 0;
+        
+        if (explicit_length_offset)
+        {
+            explicit_length_offset = valobj_addr + explicit_length_offset;
+            explicit_length = process_sp->ReadUnsignedIntegerFromMemory(explicit_length_offset, 4, 0, error);
+        }
+    }
+    
+    if (strcmp(class_name,"NSString") &&
+        strcmp(class_name,"CFStringRef") &&
+        strcmp(class_name,"CFMutableStringRef") &&
+        strcmp(class_name,"__NSCFConstantString") &&
+        strcmp(class_name,"__NSCFString") &&
+        strcmp(class_name,"NSCFConstantString") &&
+        strcmp(class_name,"NSCFString") &&
+        strcmp(class_name,"NSPathStore2"))
+    {
+        // not one of us - but tell me class name
+        stream.Printf("class name = %s",class_name);
+        return true;
+    }
+    
+    std::string prefix,suffix;
+    if (Language* language = Language::FindPlugin(summary_options.GetLanguage()))
+    {
+        if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
+        {
+            prefix.clear();
+            suffix.clear();
+        }
+    }
+    
+    StringPrinter::ReadStringAndDumpToStreamOptions options(valobj);
+    options.SetPrefixToken(prefix);
+    options.SetSuffixToken(suffix);
+    
+    if (is_mutable)
+    {
+        uint64_t location = 2 * ptr_size + valobj_addr;
+        location = process_sp->ReadPointerFromMemory(location, error);
+        if (error.Fail())
+            return false;
+        if (has_explicit_length && is_unicode)
+        {
+            options.SetLocation(location);
+            options.SetProcessSP(process_sp);
+            options.SetStream(&stream);
+            options.SetQuote('"');
+            options.SetSourceSize(explicit_length);
+            options.SetNeedsZeroTermination(false);
+            options.SetIgnoreMaxLength(summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryUncapped);
+            options.SetBinaryZeroIsTerminator(false);
+            options.SetLanguage(summary_options.GetLanguage());
+            return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF16>(options);
+        }
+        else
+        {
+            options.SetLocation(location+1);
+            options.SetProcessSP(process_sp);
+            options.SetStream(&stream);
+            options.SetSourceSize(explicit_length);
+            options.SetNeedsZeroTermination(false);
+            options.SetIgnoreMaxLength(summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryUncapped);
+            options.SetBinaryZeroIsTerminator(false);
+            options.SetLanguage(summary_options.GetLanguage());
+            return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::ASCII>(options);
+        }
+    }
+    else if (is_inline && has_explicit_length && !is_unicode && !is_path_store && !is_mutable)
+    {
+        uint64_t location = 3 * ptr_size + valobj_addr;
+        
+        options.SetLocation(location);
+        options.SetProcessSP(process_sp);
+        options.SetStream(&stream);
+        options.SetQuote('"');
+        options.SetSourceSize(explicit_length);
+        options.SetIgnoreMaxLength(summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryUncapped);
+        options.SetLanguage(summary_options.GetLanguage());
+        return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::ASCII> (options);
+    }
+    else if (is_unicode)
+    {
+        uint64_t location = valobj_addr + 2*ptr_size;
+        if (is_inline)
+        {
+            if (!has_explicit_length)
+            {
+                stream.Printf("found new combo");
+                return true;
+            }
+            else
+                location += ptr_size;
+        }
+        else
+        {
+            location = process_sp->ReadPointerFromMemory(location, error);
+            if (error.Fail())
+                return false;
+        }
+        options.SetLocation(location);
+        options.SetProcessSP(process_sp);
+        options.SetStream(&stream);
+        options.SetQuote('"');
+        options.SetSourceSize(explicit_length);
+        options.SetNeedsZeroTermination(has_explicit_length == false);
+        options.SetIgnoreMaxLength(summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryUncapped);
+        options.SetBinaryZeroIsTerminator(has_explicit_length == false);
+        options.SetLanguage(summary_options.GetLanguage());
+        return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF16> (options);
+    }
+    else if (is_path_store)
+    {
+        ProcessStructReader reader(valobj.GetProcessSP().get(), valobj.GetValueAsUnsigned(0), GetNSPathStore2Type(*valobj.GetTargetSP()));
+        explicit_length = reader.GetField<uint32_t>(ConstString("lengthAndRef")) >> 20;
+        lldb::addr_t location = valobj.GetValueAsUnsigned(0) + ptr_size + 4;
+        
+        options.SetLocation(location);
+        options.SetProcessSP(process_sp);
+        options.SetStream(&stream);
+        options.SetQuote('"');
+        options.SetSourceSize(explicit_length);
+        options.SetNeedsZeroTermination(has_explicit_length == false);
+        options.SetIgnoreMaxLength(summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryUncapped);
+        options.SetBinaryZeroIsTerminator(has_explicit_length == false);
+        options.SetLanguage(summary_options.GetLanguage());
+        return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF16> (options);
+    }
+    else if (is_inline)
+    {
+        uint64_t location = valobj_addr + 2*ptr_size;
+        if (!has_explicit_length)
+        {
+            // in this kind of string, the byte before the string content is a length byte
+            // so let's try and use it to handle the embedded NUL case
+            Error error;
+            explicit_length = process_sp->ReadUnsignedIntegerFromMemory(location, 1, 0, error);
+            if (error.Fail() || explicit_length == 0)
+                has_explicit_length = false;
+            else
+                has_explicit_length = true;
+            location++;
+        }
+        options.SetLocation(location);
+        options.SetProcessSP(process_sp);
+        options.SetStream(&stream);
+        options.SetSourceSize(explicit_length);
+        options.SetNeedsZeroTermination(!has_explicit_length);
+        options.SetIgnoreMaxLength(summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryUncapped);
+        options.SetBinaryZeroIsTerminator(!has_explicit_length);
+        options.SetLanguage(summary_options.GetLanguage());
+        if (has_explicit_length)
+            return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::UTF8>(options);
+        else
+            return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::ASCII>(options);
+    }
+    else
+    {
+        uint64_t location = valobj_addr + 2*ptr_size;
+        location = process_sp->ReadPointerFromMemory(location, error);
+        if (error.Fail())
+            return false;
+        if (has_explicit_length && !has_null)
+            explicit_length++; // account for the fact that there is no NULL and we need to have one added
+        options.SetLocation(location);
+        options.SetProcessSP(process_sp);
+        options.SetStream(&stream);
+        options.SetSourceSize(explicit_length);
+        options.SetIgnoreMaxLength(summary_options.GetCapping() == TypeSummaryCapping::eTypeSummaryUncapped);
+        options.SetLanguage(summary_options.GetLanguage());
+        return StringPrinter::ReadStringAndDumpToStream<StringPrinter::StringElementType::ASCII>(options);
+    }
+}
+
+bool
+lldb_private::formatters::NSAttributedStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    TargetSP target_sp(valobj.GetTargetSP());
+    if (!target_sp)
+        return false;
+    uint32_t addr_size = target_sp->GetArchitecture().GetAddressByteSize();
+    uint64_t pointer_value = valobj.GetValueAsUnsigned(0);
+    if (!pointer_value)
+        return false;
+    pointer_value += addr_size;
+    CompilerType type(valobj.GetCompilerType());
+    ExecutionContext exe_ctx(target_sp,false);
+    ValueObjectSP child_ptr_sp(valobj.CreateValueObjectFromAddress("string_ptr", pointer_value, exe_ctx, type));
+    if (!child_ptr_sp)
+        return false;
+    DataExtractor data;
+    Error error;
+    child_ptr_sp->GetData(data, error);
+    if (error.Fail())
+        return false;
+    ValueObjectSP child_sp(child_ptr_sp->CreateValueObjectFromData("string_data", data, exe_ctx, type));
+    child_sp->GetValueAsUnsigned(0);
+    if (child_sp)
+        return NSStringSummaryProvider(*child_sp, stream, options);
+    return false;
+}
+
+bool
+lldb_private::formatters::NSMutableAttributedStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
+{
+    return NSAttributedStringSummaryProvider(valobj, stream, options);
+}
+
+bool
+lldb_private::formatters::NSTaggedString_SummaryProvider (ValueObject& valobj, ObjCLanguageRuntime::ClassDescriptorSP descriptor, Stream& stream, const TypeSummaryOptions& summary_options)
+{
+    static ConstString g_TypeHint("NSString");
+    
+    if (!descriptor)
+        return false;
+    uint64_t len_bits = 0, data_bits = 0;
+    if (!descriptor->GetTaggedPointerInfo(&len_bits,&data_bits,nullptr))
+        return false;
+    
+    static const int g_MaxNonBitmaskedLen = 7; //TAGGED_STRING_UNPACKED_MAXLEN
+    static const int g_SixbitMaxLen = 9;
+    static const int g_fiveBitMaxLen = 11;
+    
+    static const char *sixBitToCharLookup = "eilotrm.apdnsIc ufkMShjTRxgC4013" "bDNvwyUL2O856P-B79AFKEWV_zGJ/HYX";
+    
+    if (len_bits > g_fiveBitMaxLen)
+        return false;
+    
+    std::string prefix,suffix;
+    if (Language* language = Language::FindPlugin(summary_options.GetLanguage()))
+    {
+        if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
+        {
+            prefix.clear();
+            suffix.clear();
+        }
+    }
+    
+    // this is a fairly ugly trick - pretend that the numeric value is actually a char*
+    // this works under a few assumptions:
+    // little endian architecture
+    // sizeof(uint64_t) > g_MaxNonBitmaskedLen
+    if (len_bits <= g_MaxNonBitmaskedLen)
+    {
+        stream.Printf("%s",prefix.c_str());
+        stream.Printf("\"%s\"",(const char*)&data_bits);
+        stream.Printf("%s",suffix.c_str());
+        return true;
+    }
+    
+    // if the data is bitmasked, we need to actually process the bytes
+    uint8_t bitmask = 0;
+    uint8_t shift_offset = 0;
+    
+    if (len_bits <= g_SixbitMaxLen)
+    {
+        bitmask = 0x03f;
+        shift_offset = 6;
+    }
+    else
+    {
+        bitmask = 0x01f;
+        shift_offset = 5;
+    }
+    
+    std::vector<uint8_t> bytes;
+    bytes.resize(len_bits);
+    for (; len_bits > 0; data_bits >>= shift_offset, --len_bits)
+    {
+        uint8_t packed = data_bits & bitmask;
+        bytes.insert(bytes.begin(), sixBitToCharLookup[packed]);
+    }
+    
+    stream.Printf("%s",prefix.c_str());
+    stream.Printf("\"%s\"",&bytes[0]);
+    stream.Printf("%s",suffix.c_str());
+    return true;
+}
diff --git a/source/Plugins/Language/ObjC/NSString.h b/source/Plugins/Language/ObjC/NSString.h
new file mode 100644
index 0000000000000..6a767a55e0098
--- /dev/null
+++ b/source/Plugins/Language/ObjC/NSString.h
@@ -0,0 +1,42 @@
+//===-- NSString.h ---------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_NSString_h_
+#define liblldb_NSString_h_
+
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/DataFormatters/TypeSummary.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+
+namespace lldb_private {
+    namespace formatters
+    {
+        bool
+        NSStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        NSTaggedString_SummaryProvider (ValueObject& valobj, ObjCLanguageRuntime::ClassDescriptorSP descriptor, Stream& stream, const TypeSummaryOptions& summary_options);
+        
+        bool
+        NSAttributedStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        bool
+        NSMutableAttributedStringSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options);
+        
+        class NSString_Additionals
+        {
+        public:
+            static std::map<ConstString, CXXFunctionSummaryFormat::Callback>&
+            GetAdditionalSummaries ();
+        };
+    } // namespace formatters
+} // namespace lldb_private
+
+#endif // liblldb_CF_h_
diff --git a/source/Plugins/Language/ObjC/ObjCLanguage.cpp b/source/Plugins/Language/ObjC/ObjCLanguage.cpp
new file mode 100644
index 0000000000000..91a3a0fb42999
--- /dev/null
+++ b/source/Plugins/Language/ObjC/ObjCLanguage.cpp
@@ -0,0 +1,877 @@
+//===-- ObjCLanguage.cpp ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+#include <mutex>
+
+// Other libraries and framework includes
+// Project includes
+#include "ObjCLanguage.h"
+
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/DataFormatters/DataVisualization.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/Symbol/CompilerType.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "lldb/Symbol/ClangASTContext.h"
+
+#include "CF.h"
+#include "Cocoa.h"
+#include "CoreMedia.h"
+#include "NSDictionary.h"
+#include "NSSet.h"
+#include "NSString.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+void
+ObjCLanguage::Initialize()
+{
+    PluginManager::RegisterPlugin (GetPluginNameStatic(),
+                                   "Objective-C Language",
+                                   CreateInstance);
+}
+
+void
+ObjCLanguage::Terminate()
+{
+    PluginManager::UnregisterPlugin (CreateInstance);
+}
+
+lldb_private::ConstString
+ObjCLanguage::GetPluginNameStatic()
+{
+    static ConstString g_name("objc");
+    return g_name;
+}
+
+//------------------------------------------------------------------
+// PluginInterface protocol
+//------------------------------------------------------------------
+lldb_private::ConstString
+ObjCLanguage::GetPluginName()
+{
+    return GetPluginNameStatic();
+}
+
+uint32_t
+ObjCLanguage::GetPluginVersion()
+{
+    return 1;
+}
+
+//------------------------------------------------------------------
+// Static Functions
+//------------------------------------------------------------------
+Language *
+ObjCLanguage::CreateInstance (lldb::LanguageType language)
+{
+    switch (language)
+    {
+        case lldb::eLanguageTypeObjC:
+            return new ObjCLanguage();
+        default:
+            return nullptr;
+    }
+}
+
+void
+ObjCLanguage::MethodName::Clear()
+{
+    m_full.Clear();
+    m_class.Clear();
+    m_category.Clear();
+    m_selector.Clear();
+    m_type = eTypeUnspecified;
+    m_category_is_valid = false;
+}
+
+bool
+ObjCLanguage::MethodName::SetName (const char *name, bool strict)
+{
+    Clear();
+    if (name && name[0])
+    {
+        // If "strict" is true. then the method must be specified with a
+        // '+' or '-' at the beginning. If "strict" is false, then the '+'
+        // or '-' can be omitted
+        bool valid_prefix = false;
+        
+        if (name[0] == '+' || name[0] == '-')
+        {
+            valid_prefix = name[1] == '[';
+            if (name[0] == '+')
+                m_type = eTypeClassMethod;
+            else
+                m_type = eTypeInstanceMethod;
+        }
+        else if (!strict)
+        {
+            // "strict" is false, the name just needs to start with '['
+            valid_prefix = name[0] == '[';
+        }
+        
+        if (valid_prefix)
+        {
+            int name_len = strlen (name);
+            // Objective C methods must have at least:
+            //      "-[" or "+[" prefix
+            //      One character for a class name
+            //      One character for the space between the class name
+            //      One character for the method name
+            //      "]" suffix
+            if (name_len >= (5 + (strict ? 1 : 0)) && name[name_len - 1] == ']')
+            {
+                m_full.SetCStringWithLength(name, name_len);
+            }
+        }
+    }
+    return IsValid(strict);
+}
+
+const ConstString &
+ObjCLanguage::MethodName::GetClassName ()
+{
+    if (!m_class)
+    {
+        if (IsValid(false))
+        {
+            const char *full = m_full.GetCString();
+            const char *class_start = (full[0] == '[' ? full + 1 : full + 2);
+            const char *paren_pos = strchr (class_start, '(');
+            if (paren_pos)
+            {
+                m_class.SetCStringWithLength (class_start, paren_pos - class_start);
+            }
+            else
+            {
+                // No '(' was found in the full name, we can definitively say
+                // that our category was valid (and empty).
+                m_category_is_valid = true;
+                const char *space_pos = strchr (full, ' ');
+                if (space_pos)
+                {
+                    m_class.SetCStringWithLength (class_start, space_pos - class_start);
+                    if (!m_class_category)
+                    {
+                        // No category in name, so we can also fill in the m_class_category
+                        m_class_category = m_class;
+                    }
+                }
+            }
+        }
+    }
+    return m_class;
+}
+
+const ConstString &
+ObjCLanguage::MethodName::GetClassNameWithCategory () 
+{
+    if (!m_class_category)
+    {
+        if (IsValid(false))
+        {
+            const char *full = m_full.GetCString();
+            const char *class_start = (full[0] == '[' ? full + 1 : full + 2);
+            const char *space_pos = strchr (full, ' ');
+            if (space_pos)
+            {
+                m_class_category.SetCStringWithLength (class_start, space_pos - class_start);
+                // If m_class hasn't been filled in and the class with category doesn't
+                // contain a '(', then we can also fill in the m_class
+                if (!m_class && strchr (m_class_category.GetCString(), '(') == NULL)
+                {
+                    m_class = m_class_category;
+                    // No '(' was found in the full name, we can definitively say
+                    // that our category was valid (and empty).
+                    m_category_is_valid = true;
+
+                }
+            }
+        }
+    }
+    return m_class_category;
+}
+
+const ConstString &
+ObjCLanguage::MethodName::GetSelector ()
+{
+    if (!m_selector)
+    {
+        if (IsValid(false))
+        {
+            const char *full = m_full.GetCString();
+            const char *space_pos = strchr (full, ' ');
+            if (space_pos)
+            {
+                ++space_pos; // skip the space
+                m_selector.SetCStringWithLength (space_pos, m_full.GetLength() - (space_pos - full) - 1);
+            }
+        }
+    }
+    return m_selector;
+}
+
+const ConstString &
+ObjCLanguage::MethodName::GetCategory ()
+{
+    if (!m_category_is_valid && !m_category)
+    {
+        if (IsValid(false))
+        {
+            m_category_is_valid = true;
+            const char *full = m_full.GetCString();
+            const char *class_start = (full[0] == '[' ? full + 1 : full + 2);
+            const char *open_paren_pos = strchr (class_start, '(');
+            if (open_paren_pos)
+            {
+                ++open_paren_pos; // Skip the open paren
+                const char *close_paren_pos = strchr (open_paren_pos, ')');
+                if (close_paren_pos)
+                    m_category.SetCStringWithLength (open_paren_pos, close_paren_pos - open_paren_pos);
+            }
+        }
+    }
+    return m_category;
+}
+
+ConstString
+ObjCLanguage::MethodName::GetFullNameWithoutCategory (bool empty_if_no_category)
+{
+    if (IsValid(false))
+    {
+        if (HasCategory())
+        {
+            StreamString strm;
+            if (m_type == eTypeClassMethod)
+                strm.PutChar('+');
+            else if (m_type == eTypeInstanceMethod)
+                strm.PutChar('-');
+            strm.Printf("[%s %s]", GetClassName().GetCString(), GetSelector().GetCString());
+            return ConstString(strm.GetString().c_str());
+        }
+        
+        if (!empty_if_no_category)
+        {
+            // Just return the full name since it doesn't have a category
+            return GetFullName();
+        }
+    }
+    return ConstString();
+}
+
+size_t
+ObjCLanguage::MethodName::GetFullNames (std::vector<ConstString> &names, bool append)
+{
+    if (!append)
+        names.clear();
+    if (IsValid(false))
+    {
+        StreamString strm;
+        const bool is_class_method = m_type == eTypeClassMethod;
+        const bool is_instance_method = m_type == eTypeInstanceMethod;
+        const ConstString &category = GetCategory();
+        if (is_class_method || is_instance_method)
+        {
+            names.push_back (m_full);
+            if (category)
+            {
+                strm.Printf("%c[%s %s]",
+                            is_class_method ? '+' : '-',
+                            GetClassName().GetCString(),
+                            GetSelector().GetCString());
+                names.push_back(ConstString(strm.GetString().c_str()));
+            }
+        }
+        else
+        {
+            const ConstString &class_name = GetClassName();
+            const ConstString &selector = GetSelector();
+            strm.Printf("+[%s %s]", class_name.GetCString(), selector.GetCString());
+            names.push_back(ConstString(strm.GetString().c_str()));
+            strm.Clear();
+            strm.Printf("-[%s %s]", class_name.GetCString(), selector.GetCString());
+            names.push_back(ConstString(strm.GetString().c_str()));
+            strm.Clear();
+            if (category)
+            {
+                strm.Printf("+[%s(%s) %s]", class_name.GetCString(), category.GetCString(), selector.GetCString());
+                names.push_back(ConstString(strm.GetString().c_str()));
+                strm.Clear();
+                strm.Printf("-[%s(%s) %s]", class_name.GetCString(), category.GetCString(), selector.GetCString());
+                names.push_back(ConstString(strm.GetString().c_str()));
+            }
+        }
+    }
+    return names.size();
+}
+
+static void
+LoadObjCFormatters(TypeCategoryImplSP objc_category_sp)
+{
+    if (!objc_category_sp)
+        return;
+    
+    TypeSummaryImpl::Flags objc_flags;
+    objc_flags.SetCascades(false)
+    .SetSkipPointers(true)
+    .SetSkipReferences(true)
+    .SetDontShowChildren(true)
+    .SetDontShowValue(true)
+    .SetShowMembersOneLiner(false)
+    .SetHideItemNames(false);
+    
+    lldb::TypeSummaryImplSP ObjC_BOOL_summary(new CXXFunctionSummaryFormat(objc_flags, lldb_private::formatters::ObjCBOOLSummaryProvider,""));
+    objc_category_sp->GetTypeSummariesContainer()->Add(ConstString("BOOL"),
+                                                       ObjC_BOOL_summary);
+    objc_category_sp->GetTypeSummariesContainer()->Add(ConstString("BOOL &"),
+                                                       ObjC_BOOL_summary);
+    objc_category_sp->GetTypeSummariesContainer()->Add(ConstString("BOOL *"),
+                                                       ObjC_BOOL_summary);
+    
+#ifndef LLDB_DISABLE_PYTHON
+    // we need to skip pointers here since we are special casing a SEL* when retrieving its value
+    objc_flags.SetSkipPointers(true);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::ObjCSELSummaryProvider<false>, "SEL summary provider", ConstString("SEL"), objc_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::ObjCSELSummaryProvider<false>, "SEL summary provider", ConstString("struct objc_selector"), objc_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::ObjCSELSummaryProvider<false>, "SEL summary provider", ConstString("objc_selector"), objc_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::ObjCSELSummaryProvider<true>, "SEL summary provider", ConstString("objc_selector *"), objc_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::ObjCSELSummaryProvider<true>, "SEL summary provider", ConstString("SEL *"), objc_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::ObjCClassSummaryProvider, "Class summary provider", ConstString("Class"), objc_flags);
+    
+    SyntheticChildren::Flags class_synth_flags;
+    class_synth_flags.SetCascades(true).SetSkipPointers(false).SetSkipReferences(false);
+    
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::ObjCClassSyntheticFrontEndCreator, "Class synthetic children", ConstString("Class"), class_synth_flags);
+#endif // LLDB_DISABLE_PYTHON
+    
+    objc_flags.SetSkipPointers(false);
+    objc_flags.SetCascades(true);
+    objc_flags.SetSkipReferences(false);
+    
+    AddStringSummary (objc_category_sp,
+                      "${var.__FuncPtr%A}",
+                      ConstString("__block_literal_generic"),
+                      objc_flags);
+    
+    AddStringSummary(objc_category_sp,
+                     "${var.years} years, ${var.months} months, ${var.days} days, ${var.hours} hours, ${var.minutes} minutes ${var.seconds} seconds",
+                     ConstString("CFGregorianUnits"),
+                     objc_flags);
+    AddStringSummary(objc_category_sp,
+                     "location=${var.location} length=${var.length}",
+                     ConstString("CFRange"),
+                     objc_flags);
+    
+    AddStringSummary(objc_category_sp,
+                     "location=${var.location}, length=${var.length}",
+                     ConstString("NSRange"),
+                     objc_flags);
+    AddStringSummary(objc_category_sp,
+                     "(${var.origin}, ${var.size}), ...",
+                     ConstString("NSRectArray"),
+                     objc_flags);
+    
+    AddOneLineSummary (objc_category_sp,
+                       ConstString("NSPoint"),
+                       objc_flags);
+    AddOneLineSummary (objc_category_sp,
+                       ConstString("NSSize"),
+                       objc_flags);
+    AddOneLineSummary (objc_category_sp,
+                       ConstString("NSRect"),
+                       objc_flags);
+    
+    AddOneLineSummary (objc_category_sp,
+                       ConstString("CGSize"),
+                       objc_flags);
+    AddOneLineSummary (objc_category_sp,
+                       ConstString("CGPoint"),
+                       objc_flags);
+    AddOneLineSummary (objc_category_sp,
+                       ConstString("CGRect"),
+                       objc_flags);
+    
+    AddStringSummary(objc_category_sp,
+                     "red=${var.red} green=${var.green} blue=${var.blue}",
+                     ConstString("RGBColor"),
+                     objc_flags);
+    AddStringSummary(objc_category_sp,
+                     "(t=${var.top}, l=${var.left}, b=${var.bottom}, r=${var.right})",
+                     ConstString("Rect"),
+                     objc_flags);
+    AddStringSummary(objc_category_sp,
+                     "{(v=${var.v}, h=${var.h})}",
+                     ConstString("Point"),
+                     objc_flags);
+    AddStringSummary(objc_category_sp,
+                     "${var.month}/${var.day}/${var.year}  ${var.hour} :${var.minute} :${var.second} dayOfWeek:${var.dayOfWeek}",
+                     ConstString("DateTimeRect *"),
+                     objc_flags);
+    AddStringSummary(objc_category_sp,
+                     "${var.ld.month}/${var.ld.day}/${var.ld.year} ${var.ld.hour} :${var.ld.minute} :${var.ld.second} dayOfWeek:${var.ld.dayOfWeek}",
+                     ConstString("LongDateRect"),
+                     objc_flags);
+    AddStringSummary(objc_category_sp,
+                     "(x=${var.x}, y=${var.y})",
+                     ConstString("HIPoint"),
+                     objc_flags);
+    AddStringSummary(objc_category_sp,
+                     "origin=${var.origin} size=${var.size}",
+                     ConstString("HIRect"),
+                     objc_flags);
+    
+    TypeSummaryImpl::Flags appkit_flags;
+    appkit_flags.SetCascades(true)
+    .SetSkipPointers(false)
+    .SetSkipReferences(false)
+    .SetDontShowChildren(true)
+    .SetDontShowValue(false)
+    .SetShowMembersOneLiner(false)
+    .SetHideItemNames(false);
+    
+    appkit_flags.SetDontShowChildren(false);
+    
+#ifndef LLDB_DISABLE_PYTHON
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSArraySummaryProvider, "NSArray summary provider", ConstString("NSArray"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSArraySummaryProvider, "NSArray summary provider", ConstString("NSMutableArray"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSArraySummaryProvider, "NSArray summary provider", ConstString("__NSArrayI"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSArraySummaryProvider, "NSArray summary provider", ConstString("__NSArray0"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSArraySummaryProvider, "NSArray summary provider", ConstString("__NSArrayM"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSArraySummaryProvider, "NSArray summary provider", ConstString("__NSCFArray"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSArraySummaryProvider, "NSArray summary provider", ConstString("CFArrayRef"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSArraySummaryProvider, "NSArray summary provider", ConstString("CFMutableArrayRef"), appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDictionarySummaryProvider<false>, "NSDictionary summary provider", ConstString("NSDictionary"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDictionarySummaryProvider<false>, "NSDictionary summary provider", ConstString("NSMutableDictionary"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDictionarySummaryProvider<false>, "NSDictionary summary provider", ConstString("__NSCFDictionary"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDictionarySummaryProvider<false>, "NSDictionary summary provider", ConstString("__NSDictionaryI"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDictionarySummaryProvider<false>, "NSDictionary summary provider", ConstString("__NSDictionaryM"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDictionarySummaryProvider<true>, "NSDictionary summary provider", ConstString("CFDictionaryRef"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDictionarySummaryProvider<true>, "NSDictionary summary provider", ConstString("CFMutableDictionaryRef"), appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSSetSummaryProvider<false>, "NSSet summary", ConstString("NSSet"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSSetSummaryProvider<false>, "NSMutableSet summary", ConstString("NSMutableSet"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSSetSummaryProvider<true>, "CFSetRef summary", ConstString("CFSetRef"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSSetSummaryProvider<true>, "CFMutableSetRef summary", ConstString("CFMutableSetRef"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSSetSummaryProvider<false>, "__NSCFSet summary", ConstString("__NSCFSet"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSSetSummaryProvider<false>, "__NSSetI summary", ConstString("__NSSetI"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSSetSummaryProvider<false>, "__NSSetM summary", ConstString("__NSSetM"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSSetSummaryProvider<false>, "NSCountedSet summary", ConstString("NSCountedSet"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSSetSummaryProvider<false>, "NSMutableSet summary", ConstString("NSMutableSet"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSSetSummaryProvider<false>, "NSOrderedSet summary", ConstString("NSOrderedSet"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSSetSummaryProvider<false>, "__NSOrderedSetI summary", ConstString("__NSOrderedSetI"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSSetSummaryProvider<false>, "__NSOrderedSetM summary", ConstString("__NSOrderedSetM"), appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSError_SummaryProvider, "NSError summary provider", ConstString("NSError"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSException_SummaryProvider, "NSException summary provider", ConstString("NSException"), appkit_flags);
+    
+    // AddSummary(appkit_category_sp, "${var.key%@} -> ${var.value%@}", ConstString("$_lldb_typegen_nspair"), appkit_flags);
+    
+    appkit_flags.SetDontShowChildren(true);
+    
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSArraySyntheticFrontEndCreator, "NSArray synthetic children", ConstString("__NSArrayM"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSArraySyntheticFrontEndCreator, "NSArray synthetic children", ConstString("__NSArrayI"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSArraySyntheticFrontEndCreator, "NSArray synthetic children", ConstString("__NSArray0"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSArraySyntheticFrontEndCreator, "NSArray synthetic children", ConstString("NSArray"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSArraySyntheticFrontEndCreator, "NSArray synthetic children", ConstString("NSMutableArray"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSArraySyntheticFrontEndCreator, "NSArray synthetic children", ConstString("__NSCFArray"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSArraySyntheticFrontEndCreator, "NSArray synthetic children", ConstString("CFMutableArrayRef"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSArraySyntheticFrontEndCreator, "NSArray synthetic children", ConstString("CFArrayRef"), ScriptedSyntheticChildren::Flags());
+    
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSDictionarySyntheticFrontEndCreator, "NSDictionary synthetic children", ConstString("__NSDictionaryM"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSDictionarySyntheticFrontEndCreator, "NSDictionary synthetic children", ConstString("__NSDictionaryI"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSDictionarySyntheticFrontEndCreator, "NSDictionary synthetic children", ConstString("__NSCFDictionary"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSDictionarySyntheticFrontEndCreator, "NSDictionary synthetic children", ConstString("NSDictionary"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSDictionarySyntheticFrontEndCreator, "NSDictionary synthetic children", ConstString("NSMutableDictionary"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSDictionarySyntheticFrontEndCreator, "NSDictionary synthetic children", ConstString("CFDictionaryRef"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSDictionarySyntheticFrontEndCreator, "NSDictionary synthetic children", ConstString("CFMutableDictionaryRef"), ScriptedSyntheticChildren::Flags());
+    
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSErrorSyntheticFrontEndCreator, "NSError synthetic children", ConstString("NSError"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSExceptionSyntheticFrontEndCreator, "NSException synthetic children", ConstString("NSException"), ScriptedSyntheticChildren::Flags());
+    
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSSetSyntheticFrontEndCreator, "NSSet synthetic children", ConstString("NSSet"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSSetSyntheticFrontEndCreator, "__NSSetI synthetic children", ConstString("__NSSetI"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSSetSyntheticFrontEndCreator, "__NSSetM synthetic children", ConstString("__NSSetM"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSSetSyntheticFrontEndCreator, "NSMutableSet synthetic children", ConstString("NSMutableSet"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSSetSyntheticFrontEndCreator, "NSOrderedSet synthetic children", ConstString("NSOrderedSet"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSSetSyntheticFrontEndCreator, "__NSOrderedSetI synthetic children", ConstString("__NSOrderedSetI"), ScriptedSyntheticChildren::Flags());
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSSetSyntheticFrontEndCreator, "__NSOrderedSetM synthetic children", ConstString("__NSOrderedSetM"), ScriptedSyntheticChildren::Flags());
+    
+    AddCXXSynthetic(objc_category_sp, lldb_private::formatters::NSIndexPathSyntheticFrontEndCreator, "NSIndexPath synthetic children", ConstString("NSIndexPath"), ScriptedSyntheticChildren::Flags());
+    
+    AddCXXSummary(objc_category_sp,lldb_private::formatters::CFBagSummaryProvider, "CFBag summary provider", ConstString("CFBagRef"), appkit_flags);
+    AddCXXSummary(objc_category_sp,lldb_private::formatters::CFBagSummaryProvider, "CFBag summary provider", ConstString("__CFBag"), appkit_flags);
+    AddCXXSummary(objc_category_sp,lldb_private::formatters::CFBagSummaryProvider, "CFBag summary provider", ConstString("const struct __CFBag"), appkit_flags);
+    AddCXXSummary(objc_category_sp,lldb_private::formatters::CFBagSummaryProvider, "CFBag summary provider", ConstString("CFMutableBagRef"), appkit_flags);
+    
+    AddCXXSummary(objc_category_sp,lldb_private::formatters::CFBinaryHeapSummaryProvider, "CFBinaryHeap summary provider", ConstString("CFBinaryHeapRef"), appkit_flags);
+    AddCXXSummary(objc_category_sp,lldb_private::formatters::CFBinaryHeapSummaryProvider, "CFBinaryHeap summary provider", ConstString("__CFBinaryHeap"), appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSStringSummaryProvider, "NSString summary provider", ConstString("NSString"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSStringSummaryProvider, "NSString summary provider", ConstString("CFStringRef"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSStringSummaryProvider, "NSString summary provider", ConstString("__CFString"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSStringSummaryProvider, "NSString summary provider", ConstString("CFMutableStringRef"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSStringSummaryProvider, "NSString summary provider", ConstString("NSMutableString"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSStringSummaryProvider, "NSString summary provider", ConstString("__NSCFConstantString"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSStringSummaryProvider, "NSString summary provider", ConstString("__NSCFString"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSStringSummaryProvider, "NSString summary provider", ConstString("NSCFConstantString"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSStringSummaryProvider, "NSString summary provider", ConstString("NSCFString"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSStringSummaryProvider, "NSString summary provider", ConstString("NSPathStore2"), appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSAttributedStringSummaryProvider, "NSAttributedString summary provider", ConstString("NSAttributedString"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSMutableAttributedStringSummaryProvider, "NSMutableAttributedString summary provider", ConstString("NSMutableAttributedString"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSMutableAttributedStringSummaryProvider, "NSMutableAttributedString summary provider", ConstString("NSConcreteMutableAttributedString"), appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSBundleSummaryProvider, "NSBundle summary provider", ConstString("NSBundle"), appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDataSummaryProvider<false>, "NSData summary provider", ConstString("NSData"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDataSummaryProvider<false>, "NSData summary provider", ConstString("NSConcreteData"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDataSummaryProvider<false>, "NSData summary provider", ConstString("NSConcreteMutableData"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDataSummaryProvider<false>, "NSData summary provider", ConstString("NSMutableData"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDataSummaryProvider<false>, "NSData summary provider", ConstString("__NSCFData"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDataSummaryProvider<true>, "NSData summary provider", ConstString("CFDataRef"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDataSummaryProvider<true>, "NSData summary provider", ConstString("CFMutableDataRef"), appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSMachPortSummaryProvider, "NSMachPort summary provider", ConstString("NSMachPort"), appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSNotificationSummaryProvider, "NSNotification summary provider", ConstString("NSNotification"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSNotificationSummaryProvider, "NSNotification summary provider", ConstString("NSConcreteNotification"), appkit_flags);
+    
+    AddStringSummary(objc_category_sp, "domain: ${var._domain} - code: ${var._code}", ConstString("NSError"), appkit_flags);
+    AddStringSummary(objc_category_sp,"name:${var.name%S} reason:${var.reason%S}",ConstString("NSException"),appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSNumberSummaryProvider, "NSNumber summary provider", ConstString("NSNumber"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSNumberSummaryProvider, "CFNumberRef summary provider", ConstString("CFNumberRef"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSNumberSummaryProvider, "NSNumber summary provider", ConstString("__NSCFBoolean"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSNumberSummaryProvider, "NSNumber summary provider", ConstString("__NSCFNumber"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSNumberSummaryProvider, "NSNumber summary provider", ConstString("NSCFBoolean"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSNumberSummaryProvider, "NSNumber summary provider", ConstString("NSCFNumber"), appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::RuntimeSpecificDescriptionSummaryProvider, "NSDecimalNumber summary provider", ConstString("NSDecimalNumber"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::RuntimeSpecificDescriptionSummaryProvider, "NSHost summary provider", ConstString("NSHost"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::RuntimeSpecificDescriptionSummaryProvider, "NSTask summary provider", ConstString("NSTask"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::RuntimeSpecificDescriptionSummaryProvider, "NSValue summary provider", ConstString("NSValue"), appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSURLSummaryProvider, "NSURL summary provider", ConstString("NSURL"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSURLSummaryProvider, "NSURL summary provider", ConstString("CFURLRef"), appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDateSummaryProvider, "NSDate summary provider", ConstString("NSDate"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDateSummaryProvider, "NSDate summary provider", ConstString("__NSDate"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDateSummaryProvider, "NSDate summary provider", ConstString("__NSTaggedDate"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSDateSummaryProvider, "NSDate summary provider", ConstString("NSCalendarDate"), appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSTimeZoneSummaryProvider, "NSTimeZone summary provider", ConstString("NSTimeZone"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSTimeZoneSummaryProvider, "NSTimeZone summary provider", ConstString("CFTimeZoneRef"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSTimeZoneSummaryProvider, "NSTimeZone summary provider", ConstString("__NSTimeZone"), appkit_flags);
+    
+    // CFAbsoluteTime is actually a double rather than a pointer to an object
+    // we do not care about the numeric value, since it is probably meaningless to users
+    appkit_flags.SetDontShowValue(true);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::CFAbsoluteTimeSummaryProvider, "CFAbsoluteTime summary provider", ConstString("CFAbsoluteTime"), appkit_flags);
+    appkit_flags.SetDontShowValue(false);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSIndexSetSummaryProvider, "NSIndexSet summary provider", ConstString("NSIndexSet"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::NSIndexSetSummaryProvider, "NSIndexSet summary provider", ConstString("NSMutableIndexSet"), appkit_flags);
+    
+    AddStringSummary(objc_category_sp,
+                     "@\"${var.month%d}/${var.day%d}/${var.year%d} ${var.hour%d}:${var.minute%d}:${var.second}\"",
+                     ConstString("CFGregorianDate"),
+                     appkit_flags);
+    
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::CFBitVectorSummaryProvider, "CFBitVector summary provider", ConstString("CFBitVectorRef"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::CFBitVectorSummaryProvider, "CFBitVector summary provider", ConstString("CFMutableBitVectorRef"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::CFBitVectorSummaryProvider, "CFBitVector summary provider", ConstString("__CFBitVector"), appkit_flags);
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::CFBitVectorSummaryProvider, "CFBitVector summary provider", ConstString("__CFMutableBitVector"), appkit_flags);
+#endif // LLDB_DISABLE_PYTHON
+}
+
+static void
+LoadCoreMediaFormatters(TypeCategoryImplSP objc_category_sp)
+{
+    if (!objc_category_sp)
+        return;
+
+    TypeSummaryImpl::Flags cm_flags;
+    cm_flags.SetCascades(true)
+    .SetDontShowChildren(false)
+    .SetDontShowValue(false)
+    .SetHideItemNames(false)
+    .SetShowMembersOneLiner(false)
+    .SetSkipPointers(false)
+    .SetSkipReferences(false);
+    
+#ifndef LLDB_DISABLE_PYTHON
+    AddCXXSummary(objc_category_sp, lldb_private::formatters::CMTimeSummaryProvider, "CMTime summary provider", ConstString("CMTime"), cm_flags);
+#endif // LLDB_DISABLE_PYTHON
+}
+
+lldb::TypeCategoryImplSP
+ObjCLanguage::GetFormatters ()
+{
+    static std::once_flag g_initialize;
+    static TypeCategoryImplSP g_category;
+    
+    std::call_once(g_initialize, [this] () -> void {
+        DataVisualization::Categories::GetCategory(GetPluginName(), g_category);
+        if (g_category)
+        {
+            LoadCoreMediaFormatters(g_category);
+            LoadObjCFormatters(g_category);
+        }
+    });
+    return g_category;
+}
+
+std::vector<ConstString>
+ObjCLanguage::GetPossibleFormattersMatches (ValueObject& valobj, lldb::DynamicValueType use_dynamic)
+{
+    std::vector<ConstString> result;
+    
+    if (use_dynamic == lldb::eNoDynamicValues)
+        return result;
+    
+    CompilerType compiler_type(valobj.GetCompilerType());
+    
+    const bool check_cpp = false;
+    const bool check_objc = true;
+    bool canBeObjCDynamic = compiler_type.IsPossibleDynamicType(nullptr, check_cpp, check_objc);
+    
+    if (canBeObjCDynamic)
+    {
+        do {
+            lldb::ProcessSP process_sp = valobj.GetProcessSP();
+            if (!process_sp)
+                break;
+            ObjCLanguageRuntime* runtime = process_sp->GetObjCLanguageRuntime();
+            if (runtime == nullptr)
+                break;
+            ObjCLanguageRuntime::ClassDescriptorSP objc_class_sp (runtime->GetClassDescriptor(valobj));
+            if (!objc_class_sp)
+                break;
+            if (ConstString name = objc_class_sp->GetClassName())
+                result.push_back(name);
+        } while (false);
+    }
+    
+    return result;
+}
+
+std::unique_ptr<Language::TypeScavenger>
+ObjCLanguage::GetTypeScavenger ()
+{
+    class ObjCTypeScavenger : public Language::TypeScavenger
+    {
+    private:
+        class ObjCScavengerResult : public Language::TypeScavenger::Result
+        {
+        public:
+            ObjCScavengerResult (CompilerType type) :
+                Language::TypeScavenger::Result(),
+                m_compiler_type(type)
+            {
+            }
+            
+            bool
+            IsValid () override
+            {
+                return m_compiler_type.IsValid();
+            }
+            
+            bool
+            DumpToStream (Stream& stream,
+                          bool print_help_if_available) override
+            {
+                if (IsValid())
+                {
+                    m_compiler_type.DumpTypeDescription(&stream);
+                    stream.EOL();
+                    return true;
+                }
+                return false;
+            }
+
+            ~ObjCScavengerResult() override = default;
+
+        private:
+            CompilerType m_compiler_type;
+        };
+        
+    protected:
+        ObjCTypeScavenger() = default;
+        
+        ~ObjCTypeScavenger() override = default;
+        
+        bool
+        Find_Impl (ExecutionContextScope *exe_scope,
+                   const char *key,
+                   ResultSet &results) override
+        {
+            bool result = false;
+            
+            Target* target = exe_scope->CalculateTarget().get();
+            if (target)
+            {
+                if (auto clang_modules_decl_vendor = target->GetClangModulesDeclVendor())
+                {
+                    std::vector <clang::NamedDecl*> decls;
+                    ConstString key_cs(key);
+                    
+                    if (clang_modules_decl_vendor->FindDecls(key_cs, false, UINT32_MAX, decls) > 0 &&
+                        decls.size() > 0)
+                    {
+                        CompilerType module_type = ClangASTContext::GetTypeForDecl(decls.front());
+                        result = true;
+                        std::unique_ptr<Language::TypeScavenger::Result> result(new ObjCScavengerResult(module_type));
+                        results.insert(std::move(result));
+                    }
+                }
+            }
+            
+            if (!result)
+            {
+                Process* process = exe_scope->CalculateProcess().get();
+                if (process)
+                {
+                    const bool create_on_demand = false;
+                    auto objc_runtime = process->GetObjCLanguageRuntime(create_on_demand);
+                    if (objc_runtime)
+                    {
+                        auto decl_vendor = objc_runtime->GetDeclVendor();
+                        if (decl_vendor)
+                        {
+                            std::vector<clang::NamedDecl *> decls;
+                            ConstString name(key);
+                            decl_vendor->FindDecls(name, true, UINT32_MAX, decls);
+                            for (auto decl : decls)
+                            {
+                                if (decl)
+                                {
+                                    if (CompilerType candidate = ClangASTContext::GetTypeForDecl(decl))
+                                    {
+                                        result = true;
+                                        std::unique_ptr<Language::TypeScavenger::Result> result(new ObjCScavengerResult(candidate));
+                                        results.insert(std::move(result));
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+
+            return result;
+        }
+
+        friend class lldb_private::ObjCLanguage;
+    };
+    
+    return std::unique_ptr<TypeScavenger>(new ObjCTypeScavenger());
+}
+
+bool
+ObjCLanguage::GetFormatterPrefixSuffix (ValueObject& valobj, ConstString type_hint,
+                                        std::string& prefix, std::string& suffix)
+{
+    static ConstString g_CFBag("CFBag");
+    static ConstString g_CFBinaryHeap("CFBinaryHeap");
+    
+    static ConstString g_NSNumberChar("NSNumber:char");
+    static ConstString g_NSNumberShort("NSNumber:short");
+    static ConstString g_NSNumberInt("NSNumber:int");
+    static ConstString g_NSNumberLong("NSNumber:long");
+    static ConstString g_NSNumberFloat("NSNumber:float");
+    static ConstString g_NSNumberDouble("NSNumber:double");
+    
+    static ConstString g_NSData("NSData");
+    static ConstString g_NSArray("NSArray");
+    static ConstString g_NSString("NSString");
+    static ConstString g_NSStringStar("NSString*");
+    
+    if (type_hint.IsEmpty())
+        return false;
+    
+    prefix.clear();
+    suffix.clear();
+    
+    if (type_hint == g_CFBag ||
+        type_hint == g_CFBinaryHeap)
+    {
+        prefix = "@";
+        return true;
+    }
+    
+    if (type_hint == g_NSNumberChar)
+    {
+        prefix = "(char)";
+        return true;
+    }
+    if (type_hint == g_NSNumberShort)
+    {
+        prefix = "(short)";
+        return true;
+    }
+    if (type_hint == g_NSNumberInt)
+    {
+        prefix = "(int)";
+        return true;
+    }
+    if (type_hint == g_NSNumberLong)
+    {
+        prefix = "(long)";
+        return true;
+    }
+    if (type_hint == g_NSNumberFloat)
+    {
+        prefix = "(float)";
+        return true;
+    }
+    if (type_hint == g_NSNumberDouble)
+    {
+        prefix = "(double)";
+        return true;
+    }
+    
+    if (type_hint == g_NSData ||
+        type_hint == g_NSArray)
+    {
+        prefix = "@\"";
+        suffix = "\"";
+        return true;
+    }
+    
+    if (type_hint == g_NSString ||
+        type_hint == g_NSStringStar)
+    {
+        prefix = "@";
+        return true;
+    }
+    
+    return false;
+}
+
+bool
+ObjCLanguage::IsNilReference (ValueObject& valobj)
+{
+    const uint32_t mask = eTypeIsObjC | eTypeIsPointer;
+    bool isObjCpointer = (((valobj.GetCompilerType().GetTypeInfo(nullptr)) & mask) == mask);
+    if (!isObjCpointer)
+        return false;
+    bool canReadValue = true;
+    bool isZero = valobj.GetValueAsUnsigned(0,&canReadValue) == 0;
+    return canReadValue && isZero;
+}
diff --git a/source/Plugins/Language/ObjC/ObjCLanguage.h b/source/Plugins/Language/ObjC/ObjCLanguage.h
new file mode 100644
index 0000000000000..e30aa18c0443d
--- /dev/null
+++ b/source/Plugins/Language/ObjC/ObjCLanguage.h
@@ -0,0 +1,210 @@
+//===-- ObjCLanguage.h ------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ObjCLanguage_h_
+#define liblldb_ObjCLanguage_h_
+
+// C Includes
+// C++ Includes
+#include <vector>
+
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-private.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Target/Language.h"
+
+namespace lldb_private {
+    
+class ObjCLanguage :
+    public Language
+{
+public:
+    class MethodName
+    {
+    public:
+        enum Type
+        {
+            eTypeUnspecified,
+            eTypeClassMethod,
+            eTypeInstanceMethod
+        };
+        
+        MethodName () :
+            m_full(),
+            m_class(),
+            m_category(),
+            m_selector(),
+            m_type (eTypeUnspecified),
+            m_category_is_valid (false)
+        {
+        }
+
+        MethodName (const char *name, bool strict) :
+            m_full(),
+            m_class(),
+            m_category(),
+            m_selector(),
+            m_type (eTypeUnspecified),
+            m_category_is_valid (false)
+        {
+            SetName (name, strict);
+        }
+
+        void
+        Clear();
+
+        bool
+        IsValid (bool strict) const
+        {
+            // If "strict" is true, the name must have everything specified including
+            // the leading "+" or "-" on the method name
+            if (strict && m_type == eTypeUnspecified)
+                return false;
+            // Other than that, m_full will only be filled in if the objective C
+            // name is valid.
+            return (bool)m_full;
+        }
+        
+        bool
+        HasCategory()
+        {
+            return !GetCategory().IsEmpty();
+        }
+
+        Type
+        GetType () const
+        {
+            return m_type;
+        }
+        
+        const ConstString &
+        GetFullName () const
+        {
+            return m_full;
+        }
+        
+        ConstString
+        GetFullNameWithoutCategory (bool empty_if_no_category);
+
+        bool
+        SetName (const char *name, bool strict);
+
+        const ConstString &
+        GetClassName ();
+
+        const ConstString &
+        GetClassNameWithCategory ();
+
+        const ConstString &
+        GetCategory ();
+        
+        const ConstString &
+        GetSelector ();
+
+        // Get all possible names for a method. Examples:
+        // If name is "+[NSString(my_additions) myStringWithCString:]"
+        //  names[0] => "+[NSString(my_additions) myStringWithCString:]"
+        //  names[1] => "+[NSString myStringWithCString:]"
+        // If name is specified without the leading '+' or '-' like "[NSString(my_additions) myStringWithCString:]"
+        //  names[0] => "+[NSString(my_additions) myStringWithCString:]"
+        //  names[1] => "-[NSString(my_additions) myStringWithCString:]"
+        //  names[2] => "+[NSString myStringWithCString:]"
+        //  names[3] => "-[NSString myStringWithCString:]"
+        size_t
+        GetFullNames (std::vector<ConstString> &names, bool append);
+
+    protected:
+        ConstString m_full;     // Full name:   "+[NSString(my_additions) myStringWithCString:]"
+        ConstString m_class;    // Class name:  "NSString"
+        ConstString m_class_category; // Class with category: "NSString(my_additions)"
+        ConstString m_category; // Category:    "my_additions"
+        ConstString m_selector; // Selector:    "myStringWithCString:"
+        Type m_type;
+        bool m_category_is_valid;
+    };
+
+    ObjCLanguage() = default;
+
+    ~ObjCLanguage() override = default;
+
+    lldb::LanguageType
+    GetLanguageType () const override
+    {
+        return lldb::eLanguageTypeObjC;
+    }
+    
+    lldb::TypeCategoryImplSP
+    GetFormatters () override;
+    
+    std::vector<ConstString>
+    GetPossibleFormattersMatches (ValueObject& valobj, lldb::DynamicValueType use_dynamic) override;
+    
+    std::unique_ptr<TypeScavenger>
+    GetTypeScavenger () override;
+    
+    bool
+    GetFormatterPrefixSuffix (ValueObject& valobj, ConstString type_hint,
+                              std::string& prefix, std::string& suffix) override;
+    
+    bool
+    IsNilReference (ValueObject& valobj) override;
+    
+    //------------------------------------------------------------------
+    // Static Functions
+    //------------------------------------------------------------------
+    static void
+    Initialize();
+    
+    static void
+    Terminate();
+    
+    static lldb_private::Language *
+    CreateInstance (lldb::LanguageType language);
+    
+    static lldb_private::ConstString
+    GetPluginNameStatic();
+    
+    static bool
+    IsPossibleObjCMethodName (const char *name)
+    {
+        if (!name)
+            return false;
+        bool starts_right = (name[0] == '+' || name[0] == '-') && name[1] == '[';
+        bool ends_right = (name[strlen(name) - 1] == ']');
+        return (starts_right && ends_right);
+    }
+    
+    static bool
+    IsPossibleObjCSelector (const char *name)
+    {
+        if (!name)
+            return false;
+            
+        if (strchr(name, ':') == NULL)
+            return true;
+        else if (name[strlen(name) - 1] == ':')
+            return true;
+        else
+            return false;
+    }
+    
+    //------------------------------------------------------------------
+    // PluginInterface protocol
+    //------------------------------------------------------------------
+    ConstString
+    GetPluginName() override;
+    
+    uint32_t
+    GetPluginVersion() override;
+};
+    
+} // namespace lldb_private
+
+#endif // liblldb_ObjCLanguage_h_
diff --git a/source/Plugins/Language/ObjCPlusPlus/ObjCPlusPlusLanguage.cpp b/source/Plugins/Language/ObjCPlusPlus/ObjCPlusPlusLanguage.cpp
new file mode 100644
index 0000000000000..62ddafefad97d
--- /dev/null
+++ b/source/Plugins/Language/ObjCPlusPlus/ObjCPlusPlusLanguage.cpp
@@ -0,0 +1,68 @@
+//===-- ObjCPlusPlusLanguage.cpp --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ObjCPlusPlusLanguage.h"
+
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/PluginManager.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+void
+ObjCPlusPlusLanguage::Initialize()
+{
+    PluginManager::RegisterPlugin (GetPluginNameStatic(),
+                                   "Objective-C++ Language",
+                                   CreateInstance);
+}
+
+void
+ObjCPlusPlusLanguage::Terminate()
+{
+    PluginManager::UnregisterPlugin (CreateInstance);
+}
+
+lldb_private::ConstString
+ObjCPlusPlusLanguage::GetPluginNameStatic()
+{
+    static ConstString g_name("objcplusplus");
+    return g_name;
+}
+
+
+//------------------------------------------------------------------
+// PluginInterface protocol
+//------------------------------------------------------------------
+lldb_private::ConstString
+ObjCPlusPlusLanguage::GetPluginName()
+{
+    return GetPluginNameStatic();
+}
+
+uint32_t
+ObjCPlusPlusLanguage::GetPluginVersion()
+{
+    return 1;
+}
+
+//------------------------------------------------------------------
+// Static Functions
+//------------------------------------------------------------------
+Language *
+ObjCPlusPlusLanguage::CreateInstance (lldb::LanguageType language)
+{
+    switch (language)
+    {
+        case lldb::eLanguageTypeObjC_plus_plus:
+            return new ObjCPlusPlusLanguage();
+        default:
+            return nullptr;
+    }
+}
diff --git a/source/Plugins/Language/ObjCPlusPlus/ObjCPlusPlusLanguage.h b/source/Plugins/Language/ObjCPlusPlus/ObjCPlusPlusLanguage.h
new file mode 100644
index 0000000000000..0e1db66b08995
--- /dev/null
+++ b/source/Plugins/Language/ObjCPlusPlus/ObjCPlusPlusLanguage.h
@@ -0,0 +1,63 @@
+//===-- ObjCPlusPlusLanguage.h ----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ObjCPlusPlusLanguage_h_
+#define liblldb_ObjCPlusPlusLanguage_h_
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-private.h"
+#include "lldb/Target/Language.h"
+
+namespace lldb_private {
+    
+class ObjCPlusPlusLanguage :
+    public Language
+{
+public:
+    ObjCPlusPlusLanguage() = default;
+
+    ~ObjCPlusPlusLanguage() override = default;
+
+    lldb::LanguageType
+    GetLanguageType() const override
+    {
+        return lldb::eLanguageTypeObjC_plus_plus;
+    }
+    
+    //------------------------------------------------------------------
+    // Static Functions
+    //------------------------------------------------------------------
+    static void
+    Initialize();
+    
+    static void
+    Terminate();
+    
+    static lldb_private::Language *
+    CreateInstance (lldb::LanguageType language);
+    
+    static lldb_private::ConstString
+    GetPluginNameStatic();
+    
+    //------------------------------------------------------------------
+    // PluginInterface protocol
+    //------------------------------------------------------------------
+    ConstString
+    GetPluginName() override;
+    
+    uint32_t
+    GetPluginVersion() override;
+};
+    
+} // namespace lldb_private
+
+#endif // liblldb_CPlusPlusLanguage_h_
diff --git a/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.cpp b/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.cpp
index 3a3878ef09a1a..a5fa004493a2a 100644
--- a/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.cpp
+++ b/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.cpp
@@ -40,14 +40,15 @@ ItaniumABILanguageRuntime::CouldHaveDynamicValue (ValueObject &in_value)
 {
     const bool check_cxx = true;
     const bool check_objc = false;
-    return in_value.GetClangType().IsPossibleDynamicType (NULL, check_cxx, check_objc);
+    return in_value.GetCompilerType().IsPossibleDynamicType (NULL, check_cxx, check_objc);
 }
 
 bool
 ItaniumABILanguageRuntime::GetDynamicTypeAndAddress (ValueObject &in_value, 
                                                      lldb::DynamicValueType use_dynamic, 
                                                      TypeAndOrName &class_type_or_name, 
-                                                     Address &dynamic_address)
+                                                     Address &dynamic_address,
+                                                     Value::ValueType &value_type)
 {
     // For Itanium, if the type has a vtable pointer in the object, it will be at offset 0
     // in the object.  That will point to the "address point" within the vtable (not the beginning of the
@@ -58,6 +59,7 @@ ItaniumABILanguageRuntime::GetDynamicTypeAndAddress (ValueObject &in_value,
     //
     
     class_type_or_name.Clear();
+    value_type = Value::ValueType::eValueTypeScalar;
     
     // Only a pointer or reference type can have a different dynamic and static type:
     if (CouldHaveDynamicValue (in_value))
@@ -189,7 +191,7 @@ ItaniumABILanguageRuntime::GetDynamicTypeAndAddress (ValueObject &in_value,
                                 type_sp = class_types.GetTypeAtIndex(i);
                                 if (type_sp)
                                 {
-                                    if (type_sp->GetClangFullType().IsCXXClassType())
+                                    if (ClangASTContext::IsCXXClassType(type_sp->GetFullCompilerType ()))
                                     {
                                         if (log)
                                             log->Printf ("0x%16.16" PRIx64 ": static-type = '%s' has multiple matching dynamic types, picking this one: uid={0x%" PRIx64 "}, type-name='%s'\n",
@@ -221,8 +223,8 @@ ItaniumABILanguageRuntime::GetDynamicTypeAndAddress (ValueObject &in_value,
                         // the value we were handed.
                         if (type_sp)
                         {
-                            if (ClangASTContext::AreTypesSame (in_value.GetClangType(),
-                                                               type_sp->GetClangFullType()))
+                            if (ClangASTContext::AreTypesSame (in_value.GetCompilerType(),
+                                                               type_sp->GetFullCompilerType ()))
                             {
                                 // The dynamic type we found was the same type,
                                 // so we don't have a dynamic type here...
@@ -268,6 +270,42 @@ ItaniumABILanguageRuntime::GetDynamicTypeAndAddress (ValueObject &in_value,
     return class_type_or_name.IsEmpty() == false;
 }
 
+TypeAndOrName
+ItaniumABILanguageRuntime::FixUpDynamicType(const TypeAndOrName& type_and_or_name,
+                                            ValueObject& static_value)
+{
+    CompilerType static_type(static_value.GetCompilerType());
+    Flags static_type_flags(static_type.GetTypeInfo());
+    
+    TypeAndOrName ret(type_and_or_name);
+    if (type_and_or_name.HasType())
+    {
+        // The type will always be the type of the dynamic object.  If our parent's type was a pointer,
+        // then our type should be a pointer to the type of the dynamic object.  If a reference, then the original type
+        // should be okay...
+        CompilerType orig_type = type_and_or_name.GetCompilerType();
+        CompilerType corrected_type = orig_type;
+        if (static_type_flags.AllSet(eTypeIsPointer))
+            corrected_type = orig_type.GetPointerType ();
+        else if (static_type_flags.AllSet(eTypeIsReference))
+            corrected_type = orig_type.GetLValueReferenceType();
+        ret.SetCompilerType(corrected_type);
+    }
+    else
+    {
+        // If we are here we need to adjust our dynamic type name to include the correct & or * symbol
+        std::string corrected_name (type_and_or_name.GetName().GetCString());
+        if (static_type_flags.AllSet(eTypeIsPointer))
+            corrected_name.append(" *");
+        else if (static_type_flags.AllSet(eTypeIsReference))
+            corrected_name.append(" &");
+        // the parent type should be a correctly pointer'ed or referenc'ed type
+        ret.SetCompilerType(static_type);
+        ret.SetName(corrected_name.c_str());
+    }
+    return ret;
+}
+
 bool
 ItaniumABILanguageRuntime::IsVTableName (const char *name)
 {
@@ -420,6 +458,7 @@ ItaniumABILanguageRuntime::CreateExceptionResolver (Breakpoint *bkpt, bool catch
                                                                   exception_names.data(),
                                                                   exception_names.size(),
                                                                   eFunctionNameTypeBase,
+                                                                  eLanguageTypeUnknown,
                                                                   eLazyBoolNo));
 
     return resolver_sp;
diff --git a/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.h b/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.h
index bc5d83be4bf57..519a3cee36d6a 100644
--- a/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.h
+++ b/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.h
@@ -1,4 +1,4 @@
-//===-- ItaniumABILanguageRuntime.h ----------------------------------------*- C++ -*-===//
+//===-- ItaniumABILanguageRuntime.h -----------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -12,6 +12,8 @@
 
 // C Includes
 // C++ Includes
+#include <vector>
+
 // Other libraries and framework includes
 // Project includes
 #include "lldb/lldb-private.h"
@@ -20,28 +22,13 @@
 #include "lldb/Target/CPPLanguageRuntime.h"
 #include "lldb/Core/Value.h"
 
-#include <map>
-#include <vector>
-
 namespace lldb_private {
     
     class ItaniumABILanguageRuntime :
     public lldb_private::CPPLanguageRuntime
     {
     public:
-        ~ItaniumABILanguageRuntime() { }
-        
-        virtual bool
-        IsVTableName (const char *name);
-        
-        virtual bool
-        GetDynamicTypeAndAddress (ValueObject &in_value, 
-                                  lldb::DynamicValueType use_dynamic, 
-                                  TypeAndOrName &class_type_or_name, 
-                                  Address &address);
-        
-        virtual bool
-        CouldHaveDynamicValue (ValueObject &in_value);
+        ~ItaniumABILanguageRuntime() override = default;
         
         //------------------------------------------------------------------
         // Static Functions
@@ -58,38 +45,54 @@ namespace lldb_private {
         static lldb_private::ConstString
         GetPluginNameStatic();
 
-        //------------------------------------------------------------------
-        // PluginInterface protocol
-        //------------------------------------------------------------------
-        virtual lldb_private::ConstString
-        GetPluginName();
+        bool
+        IsVTableName(const char *name) override;
         
-        virtual uint32_t
-        GetPluginVersion();
+        bool
+        GetDynamicTypeAndAddress(ValueObject &in_value,
+                                 lldb::DynamicValueType use_dynamic,
+                                 TypeAndOrName &class_type_or_name,
+                                 Address &address,
+                                 Value::ValueType &value_type) override;
         
-        virtual void
-        SetExceptionBreakpoints ();
+        TypeAndOrName
+        FixUpDynamicType(const TypeAndOrName& type_and_or_name,
+                         ValueObject& static_value) override;
         
-        virtual void
-        ClearExceptionBreakpoints ();
+        bool
+        CouldHaveDynamicValue(ValueObject &in_value) override;
         
-        virtual bool
-        ExceptionBreakpointsAreSet ();
+        void
+        SetExceptionBreakpoints() override;
         
-        virtual bool
-        ExceptionBreakpointsExplainStop (lldb::StopInfoSP stop_reason);
+        void
+        ClearExceptionBreakpoints() override;
+        
+        bool
+        ExceptionBreakpointsAreSet() override;
+        
+        bool
+        ExceptionBreakpointsExplainStop(lldb::StopInfoSP stop_reason) override;
 
-        virtual lldb::BreakpointResolverSP
-        CreateExceptionResolver (Breakpoint *bkpt, bool catch_bp, bool throw_bp);
+        lldb::BreakpointResolverSP
+        CreateExceptionResolver(Breakpoint *bkpt, bool catch_bp, bool throw_bp) override;
         
-        virtual lldb::SearchFilterSP
-        CreateExceptionSearchFilter ();
+        lldb::SearchFilterSP
+        CreateExceptionSearchFilter() override;
 
-        virtual size_t
-        GetAlternateManglings(const ConstString &mangled, std::vector<ConstString> &alternates);
+        size_t
+        GetAlternateManglings(const ConstString &mangled, std::vector<ConstString> &alternates) override;
 
-    protected:
+        //------------------------------------------------------------------
+        // PluginInterface protocol
+        //------------------------------------------------------------------
+        lldb_private::ConstString
+        GetPluginName() override;
+        
+        uint32_t
+        GetPluginVersion() override;
 
+    protected:
         lldb::BreakpointResolverSP
         CreateExceptionResolver (Breakpoint *bkpt, bool catch_bp, bool throw_bp, bool for_expressions);
 
@@ -107,4 +110,4 @@ namespace lldb_private {
     
 } // namespace lldb_private
 
-#endif  // liblldb_ItaniumABILanguageRuntime_h_
+#endif // liblldb_ItaniumABILanguageRuntime_h_
diff --git a/source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp b/source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp
new file mode 100644
index 0000000000000..d59f292e7a08c
--- /dev/null
+++ b/source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp
@@ -0,0 +1,238 @@
+//===-- GoLanguageRuntime.cpp --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "GoLanguageRuntime.h"
+
+#include "lldb/Breakpoint/BreakpointLocation.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Core/Scalar.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectMemory.h"
+#include "lldb/Symbol/GoASTContext.h"
+#include "lldb/Symbol/Symbol.h"
+#include "lldb/Symbol/TypeList.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/RegisterContext.h"
+#include "lldb/Target/SectionLoadList.h"
+#include "lldb/Target/StopInfo.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Target/Thread.h"
+#include "llvm/ADT/Twine.h"
+
+#include <vector>
+
+using namespace lldb;
+using namespace lldb_private;
+
+namespace {
+ValueObjectSP GetChild(ValueObject& obj, const char* name, bool dereference = true) {
+    ConstString name_const_str(name);
+    ValueObjectSP result = obj.GetChildMemberWithName(name_const_str, true);
+    if (dereference && result && result->IsPointerType()) {
+        Error err;
+        result = result->Dereference(err);
+        if (err.Fail())
+            result.reset();
+    }
+    return result;
+}
+
+ConstString ReadString(ValueObject& str, Process* process) {
+    ConstString result;
+    ValueObjectSP data = GetChild(str, "str", false);
+    ValueObjectSP len = GetChild(str, "len");
+    if (len && data)
+    {
+        Error err;
+        lldb::addr_t addr = data->GetPointerValue();
+        if (addr == LLDB_INVALID_ADDRESS)
+            return result;
+        uint64_t byte_size = len->GetValueAsUnsigned(0);
+        char* buf = new char[byte_size + 1];
+        buf[byte_size] = 0;
+        size_t bytes_read = process->ReadMemory (addr,
+                                                 buf,
+                                                 byte_size,
+                                                 err);
+        if (!(err.Fail() || bytes_read != byte_size))
+            result = ConstString(buf, bytes_read);
+        delete[] buf;
+    }
+    return result;
+}
+
+ConstString
+ReadTypeName(ValueObjectSP type, Process* process)
+{
+    if (ValueObjectSP uncommon = GetChild(*type, "x"))
+    {
+        ValueObjectSP name = GetChild(*uncommon, "name");
+        ValueObjectSP package = GetChild(*uncommon, "pkgpath");
+        if (name && name->GetPointerValue() != 0 && package && package->GetPointerValue() != 0)
+        {
+            ConstString package_const_str = ReadString(*package, process);
+            ConstString name_const_str = ReadString(*name, process);
+            if (package_const_str.GetLength() == 0)
+                return name_const_str;
+            return ConstString((package_const_str.GetStringRef() + "." + name_const_str.GetStringRef()).str());
+        }
+    }
+    ValueObjectSP name = GetChild(*type, "_string");
+    if (name)
+        return ReadString(*name, process);
+    return ConstString("");
+}
+
+CompilerType
+LookupRuntimeType(ValueObjectSP type, ExecutionContext* exe_ctx, bool* is_direct)
+{
+    uint8_t kind = GetChild(*type, "kind")->GetValueAsUnsigned(0);
+    *is_direct = GoASTContext::IsDirectIface(kind);
+    if (GoASTContext::IsPointerKind(kind))
+    {
+        CompilerType type_ptr = type->GetCompilerType().GetPointerType();
+        Error err;
+        ValueObjectSP elem = type->CreateValueObjectFromAddress("elem", type->GetAddressOf() + type->GetByteSize(), *exe_ctx, type_ptr)->Dereference(err);
+        if (err.Fail())
+            return CompilerType();
+        bool tmp_direct;
+        return LookupRuntimeType(elem, exe_ctx, &tmp_direct).GetPointerType();
+    }
+    Target *target = exe_ctx->GetTargetPtr();
+    Process *process = exe_ctx->GetProcessPtr();
+    
+    ConstString const_typename = ReadTypeName(type, process);
+    if (const_typename.GetLength() == 0)
+        return CompilerType();
+    
+    SymbolContext sc;
+    TypeList type_list;
+    uint32_t num_matches = target->GetImages().FindTypes (sc,
+                                                          const_typename,
+                                                          false,
+                                                          2,
+                                                          type_list);
+    if (num_matches > 0) {
+        return type_list.GetTypeAtIndex(0)->GetFullCompilerType();
+    }
+    return CompilerType();
+}
+
+}
+
+bool
+GoLanguageRuntime::CouldHaveDynamicValue (ValueObject &in_value)
+{
+    return GoASTContext::IsGoInterface(in_value.GetCompilerType());
+}
+
+bool
+GoLanguageRuntime::GetDynamicTypeAndAddress(ValueObject &in_value, lldb::DynamicValueType use_dynamic,
+                                            TypeAndOrName &class_type_or_name, Address &dynamic_address,
+                                            Value::ValueType &value_type)
+{
+    value_type = Value::eValueTypeScalar;
+    class_type_or_name.Clear();
+    if (CouldHaveDynamicValue (in_value))
+    {
+        Error err;
+        ValueObjectSP iface = in_value.GetStaticValue();
+        ValueObjectSP data_sp = GetChild(*iface, "data", false);
+        if (!data_sp)
+            return false;
+
+        if (ValueObjectSP tab = GetChild(*iface, "tab"))
+            iface = tab;
+        ValueObjectSP type = GetChild(*iface, "_type");
+        if (!type)
+        {
+            return false;
+        }
+        
+        bool direct;
+        ExecutionContext exe_ctx (in_value.GetExecutionContextRef());
+        CompilerType final_type = LookupRuntimeType(type, &exe_ctx, &direct);
+        if (!final_type)
+            return false;
+        if (direct)
+        {
+            class_type_or_name.SetCompilerType(final_type);
+        }
+        else
+        {
+            // TODO: implement reference types or fix caller to support dynamic types that aren't pointers
+            // so we don't have to introduce this extra pointer.
+            class_type_or_name.SetCompilerType(final_type.GetPointerType());
+        }
+
+        dynamic_address.SetLoadAddress(data_sp->GetPointerValue(), exe_ctx.GetTargetPtr());
+
+        return true;
+    }
+    return false;
+}
+
+TypeAndOrName
+GoLanguageRuntime::FixUpDynamicType(const TypeAndOrName &type_and_or_name, ValueObject &static_value)
+{
+    return type_and_or_name;
+}
+
+//------------------------------------------------------------------
+// Static Functions
+//------------------------------------------------------------------
+LanguageRuntime *
+GoLanguageRuntime::CreateInstance (Process *process, lldb::LanguageType language)
+{
+    if (language == eLanguageTypeGo)
+        return new GoLanguageRuntime (process);
+    else
+        return NULL;
+}
+
+void
+GoLanguageRuntime::Initialize()
+{
+    PluginManager::RegisterPlugin (GetPluginNameStatic(),
+                                   "Go Language Runtime",
+                                   CreateInstance);
+}
+
+void
+GoLanguageRuntime::Terminate()
+{
+    PluginManager::UnregisterPlugin (CreateInstance);
+}
+
+lldb_private::ConstString
+GoLanguageRuntime::GetPluginNameStatic()
+{
+    static ConstString g_name("golang");
+    return g_name;
+}
+
+//------------------------------------------------------------------
+// PluginInterface protocol
+//------------------------------------------------------------------
+lldb_private::ConstString
+GoLanguageRuntime::GetPluginName()
+{
+    return GetPluginNameStatic();
+}
+
+uint32_t
+GoLanguageRuntime::GetPluginVersion()
+{
+    return 1;
+}
+
diff --git a/source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.h b/source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.h
new file mode 100644
index 0000000000000..596d2888dc856
--- /dev/null
+++ b/source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.h
@@ -0,0 +1,93 @@
+//===-- GoLanguageRuntime.h -------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_GoLanguageRuntime_h_
+#define liblldb_GoLanguageRuntime_h_
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-private.h"
+#include "lldb/Breakpoint/BreakpointResolver.h"
+#include "lldb/Target/LanguageRuntime.h"
+#include "lldb/Core/Value.h"
+
+namespace lldb_private {
+    
+    class GoLanguageRuntime :
+    public lldb_private::LanguageRuntime
+    {
+    public:
+        ~GoLanguageRuntime() override = default;
+
+        //------------------------------------------------------------------
+        // Static Functions
+        //------------------------------------------------------------------
+        static void
+        Initialize();
+        
+        static void
+        Terminate();
+        
+        static lldb_private::LanguageRuntime *
+        CreateInstance(Process *process, lldb::LanguageType language);
+        
+        static lldb_private::ConstString
+        GetPluginNameStatic();
+
+        lldb::LanguageType
+        GetLanguageType() const override
+        {
+            return lldb::eLanguageTypeGo;
+        }
+
+        bool
+        GetObjectDescription(Stream &str, ValueObject &object) override
+        {
+            // TODO(ribrdb): Maybe call String() method?
+            return false;
+        }
+
+        bool
+        GetObjectDescription(Stream &str, Value &value, ExecutionContextScope *exe_scope) override
+        {
+            return false;
+        }
+
+        bool GetDynamicTypeAndAddress(ValueObject &in_value, lldb::DynamicValueType use_dynamic,
+                                      TypeAndOrName &class_type_or_name, Address &address,
+                                      Value::ValueType &value_type) override;
+
+        bool CouldHaveDynamicValue(ValueObject &in_value) override;
+
+        lldb::BreakpointResolverSP
+        CreateExceptionResolver(Breakpoint *bkpt, bool catch_bp, bool throw_bp) override
+        {
+            return lldb::BreakpointResolverSP();
+        }
+
+        TypeAndOrName FixUpDynamicType(const TypeAndOrName &type_and_or_name, ValueObject &static_value) override;
+
+        //------------------------------------------------------------------
+        // PluginInterface protocol
+        //------------------------------------------------------------------
+        lldb_private::ConstString
+        GetPluginName() override;
+        
+        uint32_t
+        GetPluginVersion() override;
+        
+    private:
+        GoLanguageRuntime(Process *process) : lldb_private::LanguageRuntime(process) { } // Call CreateInstance instead.
+    };
+    
+} // namespace lldb_private
+
+#endif // liblldb_GoLanguageRuntime_h_
diff --git a/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.cpp b/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.cpp
index 2490cf31409b6..149244df30c22 100644
--- a/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.cpp
+++ b/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.cpp
@@ -7,6 +7,10 @@
 //
 //===----------------------------------------------------------------------===//
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "RenderScriptRuntime.h"
 
 #include "lldb/Core/ConstString.h"
@@ -14,10 +18,15 @@
 #include "lldb/Core/Error.h"
 #include "lldb/Core/Log.h"
 #include "lldb/Core/PluginManager.h"
+#include "lldb/Core/ValueObjectVariable.h"
+#include "lldb/Core/RegularExpression.h"
+#include "lldb/DataFormatters/DumpValueObjectOptions.h"
+#include "lldb/Host/StringConvert.h"
 #include "lldb/Symbol/Symbol.h"
 #include "lldb/Symbol/Type.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/Target.h"
+#include "lldb/Target/Thread.h"
 #include "lldb/Interpreter/Args.h"
 #include "lldb/Interpreter/Options.h"
 #include "lldb/Interpreter/CommandInterpreter.h"
@@ -25,11 +34,350 @@
 #include "lldb/Interpreter/CommandObjectMultiword.h"
 #include "lldb/Breakpoint/StoppointCallbackContext.h"
 #include "lldb/Target/RegisterContext.h"
-
+#include "lldb/Expression/UserExpression.h"
 #include "lldb/Symbol/VariableList.h"
 
 using namespace lldb;
 using namespace lldb_private;
+using namespace lldb_renderscript;
+
+namespace {
+
+// The empirical_type adds a basic level of validation to arbitrary data
+// allowing us to track if data has been discovered and stored or not.
+// An empirical_type will be marked as valid only if it has been explicitly assigned to.
+template <typename type_t>
+class empirical_type
+{
+public:
+    // Ctor. Contents is invalid when constructed.
+    empirical_type()
+        : valid(false)
+    {}
+
+    // Return true and copy contents to out if valid, else return false.
+    bool get(type_t& out) const
+    {
+        if (valid)
+            out = data;
+        return valid;
+    }
+
+    // Return a pointer to the contents or nullptr if it was not valid.
+    const type_t* get() const
+    {
+        return valid ? &data : nullptr;
+    }
+
+    // Assign data explicitly.
+    void set(const type_t in)
+    {
+        data = in;
+        valid = true;
+    }
+
+    // Mark contents as invalid.
+    void invalidate()
+    {
+        valid = false;
+    }
+
+    // Returns true if this type contains valid data.
+    bool isValid() const
+    {
+        return valid;
+    }
+
+    // Assignment operator.
+    empirical_type<type_t>& operator = (const type_t in)
+    {
+        set(in);
+        return *this;
+    }
+
+    // Dereference operator returns contents.
+    // Warning: Will assert if not valid so use only when you know data is valid.
+    const type_t& operator * () const
+    {
+        assert(valid);
+        return data;
+    }
+
+protected:
+    bool valid;
+    type_t data;
+};
+
+} // anonymous namespace
+
+// The ScriptDetails class collects data associated with a single script instance.
+struct RenderScriptRuntime::ScriptDetails
+{
+    ~ScriptDetails() = default;
+
+    enum ScriptType
+    {
+        eScript,
+        eScriptC
+    };
+
+    // The derived type of the script.
+    empirical_type<ScriptType> type;
+    // The name of the original source file.
+    empirical_type<std::string> resName;
+    // Path to script .so file on the device.
+    empirical_type<std::string> scriptDyLib;
+    // Directory where kernel objects are cached on device.
+    empirical_type<std::string> cacheDir;
+    // Pointer to the context which owns this script.
+    empirical_type<lldb::addr_t> context;
+    // Pointer to the script object itself.
+    empirical_type<lldb::addr_t> script;
+};
+
+// This Element class represents the Element object in RS,
+// defining the type associated with an Allocation.
+struct RenderScriptRuntime::Element
+{
+    // Taken from rsDefines.h
+    enum DataKind
+    {
+        RS_KIND_USER,
+        RS_KIND_PIXEL_L = 7,
+        RS_KIND_PIXEL_A,
+        RS_KIND_PIXEL_LA,
+        RS_KIND_PIXEL_RGB,
+        RS_KIND_PIXEL_RGBA,
+        RS_KIND_PIXEL_DEPTH,
+        RS_KIND_PIXEL_YUV,
+        RS_KIND_INVALID = 100
+    };
+
+    // Taken from rsDefines.h
+    enum DataType
+    {
+        RS_TYPE_NONE = 0,
+        RS_TYPE_FLOAT_16,
+        RS_TYPE_FLOAT_32,
+        RS_TYPE_FLOAT_64,
+        RS_TYPE_SIGNED_8,
+        RS_TYPE_SIGNED_16,
+        RS_TYPE_SIGNED_32,
+        RS_TYPE_SIGNED_64,
+        RS_TYPE_UNSIGNED_8,
+        RS_TYPE_UNSIGNED_16,
+        RS_TYPE_UNSIGNED_32,
+        RS_TYPE_UNSIGNED_64,
+        RS_TYPE_BOOLEAN,
+
+        RS_TYPE_UNSIGNED_5_6_5,
+        RS_TYPE_UNSIGNED_5_5_5_1,
+        RS_TYPE_UNSIGNED_4_4_4_4,
+
+        RS_TYPE_MATRIX_4X4,
+        RS_TYPE_MATRIX_3X3,
+        RS_TYPE_MATRIX_2X2,
+
+        RS_TYPE_ELEMENT = 1000,
+        RS_TYPE_TYPE,
+        RS_TYPE_ALLOCATION,
+        RS_TYPE_SAMPLER,
+        RS_TYPE_SCRIPT,
+        RS_TYPE_MESH,
+        RS_TYPE_PROGRAM_FRAGMENT,
+        RS_TYPE_PROGRAM_VERTEX,
+        RS_TYPE_PROGRAM_RASTER,
+        RS_TYPE_PROGRAM_STORE,
+        RS_TYPE_FONT,
+
+        RS_TYPE_INVALID = 10000
+    };
+
+    std::vector<Element> children;                       // Child Element fields for structs
+    empirical_type<lldb::addr_t> element_ptr;            // Pointer to the RS Element of the Type
+    empirical_type<DataType> type;                       // Type of each data pointer stored by the allocation
+    empirical_type<DataKind> type_kind;                  // Defines pixel type if Allocation is created from an image
+    empirical_type<uint32_t> type_vec_size;              // Vector size of each data point, e.g '4' for uchar4
+    empirical_type<uint32_t> field_count;                // Number of Subelements
+    empirical_type<uint32_t> datum_size;                 // Size of a single Element with padding
+    empirical_type<uint32_t> padding;                    // Number of padding bytes
+    empirical_type<uint32_t> array_size;                 // Number of items in array, only needed for strucrs
+    ConstString type_name;                               // Name of type, only needed for structs
+
+    static const ConstString &GetFallbackStructName();   // Print this as the type name of a struct Element
+                                                         // If we can't resolve the actual struct name
+
+    bool shouldRefresh() const
+    {
+        const bool valid_ptr = element_ptr.isValid() && *element_ptr.get() != 0x0;
+        const bool valid_type = type.isValid() && type_vec_size.isValid() && type_kind.isValid();
+        return !valid_ptr || !valid_type || !datum_size.isValid();
+    }
+};
+
+// This AllocationDetails class collects data associated with a single
+// allocation instance.
+struct RenderScriptRuntime::AllocationDetails
+{
+    struct Dimension
+    {
+        uint32_t dim_1;
+        uint32_t dim_2;
+        uint32_t dim_3;
+        uint32_t cubeMap;
+
+        Dimension()
+        {
+             dim_1 = 0;
+             dim_2 = 0;
+             dim_3 = 0;
+             cubeMap = 0;
+        }
+    };
+
+    // Header for reading and writing allocation contents
+    // to a binary file.
+    struct FileHeader
+    {
+        uint8_t ident[4];      // ASCII 'RSAD' identifying the file
+        uint16_t hdr_size;     // Header size in bytes, for backwards compatability
+        uint16_t type;         // DataType enum
+        uint32_t kind;         // DataKind enum
+        uint32_t dims[3];      // Dimensions
+        uint32_t element_size; // Size of a single element, including padding
+    };
+
+    // Monotonically increasing from 1
+    static unsigned int ID;
+
+    // Maps Allocation DataType enum and vector size to printable strings
+    // using mapping from RenderScript numerical types summary documentation
+    static const char* RsDataTypeToString[][4];
+
+    // Maps Allocation DataKind enum to printable strings
+    static const char* RsDataKindToString[];
+
+    // Maps allocation types to format sizes for printing.
+    static const unsigned int RSTypeToFormat[][3];
+
+    // Give each allocation an ID as a way
+    // for commands to reference it.
+    const unsigned int id;
+
+    RenderScriptRuntime::Element element;     // Allocation Element type
+    empirical_type<Dimension> dimension;      // Dimensions of the Allocation
+    empirical_type<lldb::addr_t> address;     // Pointer to address of the RS Allocation
+    empirical_type<lldb::addr_t> data_ptr;    // Pointer to the data held by the Allocation
+    empirical_type<lldb::addr_t> type_ptr;    // Pointer to the RS Type of the Allocation
+    empirical_type<lldb::addr_t> context;     // Pointer to the RS Context of the Allocation
+    empirical_type<uint32_t> size;            // Size of the allocation
+    empirical_type<uint32_t> stride;          // Stride between rows of the allocation
+
+    // Give each allocation an id, so we can reference it in user commands.
+    AllocationDetails(): id(ID++)
+    {
+    }
+
+    bool shouldRefresh() const
+    {
+        bool valid_ptrs = data_ptr.isValid() && *data_ptr.get() != 0x0;
+        valid_ptrs = valid_ptrs && type_ptr.isValid() && *type_ptr.get() != 0x0;
+        return !valid_ptrs || !dimension.isValid() || !size.isValid() || element.shouldRefresh();
+    }
+};
+
+
+const ConstString &
+RenderScriptRuntime::Element::GetFallbackStructName()
+{
+    static const ConstString FallbackStructName("struct");
+    return FallbackStructName;
+}
+
+unsigned int RenderScriptRuntime::AllocationDetails::ID = 1;
+
+const char* RenderScriptRuntime::AllocationDetails::RsDataKindToString[] =
+{
+   "User",
+   "Undefined", "Undefined", "Undefined", // Enum jumps from 0 to 7
+   "Undefined", "Undefined", "Undefined",
+   "L Pixel",
+   "A Pixel",
+   "LA Pixel",
+   "RGB Pixel",
+   "RGBA Pixel",
+   "Pixel Depth",
+   "YUV Pixel"
+};
+
+const char* RenderScriptRuntime::AllocationDetails::RsDataTypeToString[][4] =
+{
+    {"None", "None", "None", "None"},
+    {"half", "half2", "half3", "half4"},
+    {"float", "float2", "float3", "float4"},
+    {"double", "double2", "double3", "double4"},
+    {"char", "char2", "char3", "char4"},
+    {"short", "short2", "short3", "short4"},
+    {"int", "int2", "int3", "int4"},
+    {"long", "long2", "long3", "long4"},
+    {"uchar", "uchar2", "uchar3", "uchar4"},
+    {"ushort", "ushort2", "ushort3", "ushort4"},
+    {"uint", "uint2", "uint3", "uint4"},
+    {"ulong", "ulong2", "ulong3", "ulong4"},
+    {"bool", "bool2", "bool3", "bool4"},
+    {"packed_565", "packed_565", "packed_565", "packed_565"},
+    {"packed_5551", "packed_5551", "packed_5551", "packed_5551"},
+    {"packed_4444", "packed_4444", "packed_4444", "packed_4444"},
+    {"rs_matrix4x4", "rs_matrix4x4", "rs_matrix4x4", "rs_matrix4x4"},
+    {"rs_matrix3x3", "rs_matrix3x3", "rs_matrix3x3", "rs_matrix3x3"},
+    {"rs_matrix2x2", "rs_matrix2x2", "rs_matrix2x2", "rs_matrix2x2"},
+
+    // Handlers
+    {"RS Element", "RS Element", "RS Element", "RS Element"},
+    {"RS Type", "RS Type", "RS Type", "RS Type"},
+    {"RS Allocation", "RS Allocation", "RS Allocation", "RS Allocation"},
+    {"RS Sampler", "RS Sampler", "RS Sampler", "RS Sampler"},
+    {"RS Script", "RS Script", "RS Script", "RS Script"},
+
+    // Deprecated
+    {"RS Mesh", "RS Mesh", "RS Mesh", "RS Mesh"},
+    {"RS Program Fragment", "RS Program Fragment", "RS Program Fragment", "RS Program Fragment"},
+    {"RS Program Vertex", "RS Program Vertex", "RS Program Vertex", "RS Program Vertex"},
+    {"RS Program Raster", "RS Program Raster", "RS Program Raster", "RS Program Raster"},
+    {"RS Program Store", "RS Program Store", "RS Program Store", "RS Program Store"},
+    {"RS Font", "RS Font", "RS Font", "RS Font"}
+};
+
+// Used as an index into the RSTypeToFormat array elements
+enum TypeToFormatIndex {
+   eFormatSingle = 0,
+   eFormatVector,
+   eElementSize
+};
+
+// { format enum of single element, format enum of element vector, size of element}
+const unsigned int RenderScriptRuntime::AllocationDetails::RSTypeToFormat[][3] =
+{
+    {eFormatHex, eFormatHex, 1}, // RS_TYPE_NONE
+    {eFormatFloat, eFormatVectorOfFloat16, 2}, // RS_TYPE_FLOAT_16
+    {eFormatFloat, eFormatVectorOfFloat32, sizeof(float)}, // RS_TYPE_FLOAT_32
+    {eFormatFloat, eFormatVectorOfFloat64, sizeof(double)}, // RS_TYPE_FLOAT_64
+    {eFormatDecimal, eFormatVectorOfSInt8, sizeof(int8_t)}, // RS_TYPE_SIGNED_8
+    {eFormatDecimal, eFormatVectorOfSInt16, sizeof(int16_t)}, // RS_TYPE_SIGNED_16
+    {eFormatDecimal, eFormatVectorOfSInt32, sizeof(int32_t)}, // RS_TYPE_SIGNED_32
+    {eFormatDecimal, eFormatVectorOfSInt64, sizeof(int64_t)}, // RS_TYPE_SIGNED_64
+    {eFormatDecimal, eFormatVectorOfUInt8, sizeof(uint8_t)}, // RS_TYPE_UNSIGNED_8
+    {eFormatDecimal, eFormatVectorOfUInt16, sizeof(uint16_t)}, // RS_TYPE_UNSIGNED_16
+    {eFormatDecimal, eFormatVectorOfUInt32, sizeof(uint32_t)}, // RS_TYPE_UNSIGNED_32
+    {eFormatDecimal, eFormatVectorOfUInt64, sizeof(uint64_t)}, // RS_TYPE_UNSIGNED_64
+    {eFormatBoolean, eFormatBoolean, 1}, // RS_TYPE_BOOL
+    {eFormatHex, eFormatHex, sizeof(uint16_t)}, // RS_TYPE_UNSIGNED_5_6_5
+    {eFormatHex, eFormatHex, sizeof(uint16_t)}, // RS_TYPE_UNSIGNED_5_5_5_1
+    {eFormatHex, eFormatHex, sizeof(uint16_t)}, // RS_TYPE_UNSIGNED_4_4_4_4
+    {eFormatVectorOfFloat32, eFormatVectorOfFloat32, sizeof(float) * 16}, // RS_TYPE_MATRIX_4X4
+    {eFormatVectorOfFloat32, eFormatVectorOfFloat32, sizeof(float) * 9}, // RS_TYPE_MATRIX_3X3
+    {eFormatVectorOfFloat32, eFormatVectorOfFloat32, sizeof(float) * 4} // RS_TYPE_MATRIX_2X2
+};
 
 //------------------------------------------------------------------
 // Static Functions
@@ -44,6 +392,47 @@ RenderScriptRuntime::CreateInstance(Process *process, lldb::LanguageType languag
         return NULL;
 }
 
+// Callback with a module to search for matching symbols.
+// We first check that the module contains RS kernels.
+// Then look for a symbol which matches our kernel name.
+// The breakpoint address is finally set using the address of this symbol.
+Searcher::CallbackReturn
+RSBreakpointResolver::SearchCallback(SearchFilter &filter,
+                                     SymbolContext &context,
+                                     Address*,
+                                     bool)
+{
+    ModuleSP module = context.module_sp;
+
+    if (!module)
+        return Searcher::eCallbackReturnContinue;
+
+    // Is this a module containing renderscript kernels?
+    if (nullptr == module->FindFirstSymbolWithNameAndType(ConstString(".rs.info"), eSymbolTypeData))
+        return Searcher::eCallbackReturnContinue;
+
+    // Attempt to set a breakpoint on the kernel name symbol within the module library.
+    // If it's not found, it's likely debug info is unavailable - try to set a
+    // breakpoint on <name>.expand.
+
+    const Symbol* kernel_sym = module->FindFirstSymbolWithNameAndType(m_kernel_name, eSymbolTypeCode);
+    if (!kernel_sym)
+    {
+        std::string kernel_name_expanded(m_kernel_name.AsCString());
+        kernel_name_expanded.append(".expand");
+        kernel_sym = module->FindFirstSymbolWithNameAndType(ConstString(kernel_name_expanded.c_str()), eSymbolTypeCode);
+    }
+
+    if (kernel_sym)
+    {
+        Address bp_addr = kernel_sym->GetAddress();
+        if (filter.AddressPasses(bp_addr))
+            m_breakpoint->AddLocation(bp_addr);
+    }
+
+    return Searcher::eCallbackReturnContinue;
+}
+
 void
 RenderScriptRuntime::Initialize()
 {
@@ -88,7 +477,7 @@ RenderScriptRuntime::GetModuleKind(const lldb::ModuleSP &module_sp)
             return eModuleKindDriver;
         }
 
-        const ConstString rs_cpureflib("libRSCPURef.so");
+        const ConstString rs_cpureflib("libRSCpuRef.so");
         if (module_sp->GetFileSpec().GetFilename() == rs_cpureflib)
         {
             return eModuleKindImpl;
@@ -104,7 +493,6 @@ RenderScriptRuntime::IsRenderScriptModule(const lldb::ModuleSP &module_sp)
     return GetModuleKind(module_sp) != eModuleKindIgnored;
 }
 
-
 void 
 RenderScriptRuntime::ModulesDidLoad(const ModuleList &module_list )
 {
@@ -121,7 +509,6 @@ RenderScriptRuntime::ModulesDidLoad(const ModuleList &module_list )
     }
 }
 
-
 //------------------------------------------------------------------
 // PluginInterface protocol
 //------------------------------------------------------------------
@@ -145,11 +532,19 @@ RenderScriptRuntime::IsVTableName(const char *name)
 
 bool
 RenderScriptRuntime::GetDynamicTypeAndAddress(ValueObject &in_value, lldb::DynamicValueType use_dynamic,
-                                              TypeAndOrName &class_type_or_name, Address &address)
+                                              TypeAndOrName &class_type_or_name, Address &address,
+                                              Value::ValueType &value_type)
 {
     return false;
 }
 
+TypeAndOrName
+RenderScriptRuntime::FixUpDynamicType (const TypeAndOrName& type_and_or_name,
+                                       ValueObject& static_value)
+{
+    return type_and_or_name;
+}
+
 bool
 RenderScriptRuntime::CouldHaveDynamicValue(ValueObject &in_value)
 {
@@ -163,22 +558,78 @@ RenderScriptRuntime::CreateExceptionResolver(Breakpoint *bkpt, bool catch_bp, bo
     return resolver_sp;
 }
 
-
 const RenderScriptRuntime::HookDefn RenderScriptRuntime::s_runtimeHookDefns[] =
 {
     //rsdScript
-    {"rsdScriptInit", "_Z13rsdScriptInitPKN7android12renderscript7ContextEPNS0_7ScriptCEPKcS7_PKhjj", 0, RenderScriptRuntime::eModuleKindDriver, &lldb_private::RenderScriptRuntime::CaptureScriptInit1},
-    {"rsdScriptInvokeForEach", "_Z22rsdScriptInvokeForEachPKN7android12renderscript7ContextEPNS0_6ScriptEjPKNS0_10AllocationEPS6_PKvjPK12RsScriptCall", 0, RenderScriptRuntime::eModuleKindDriver, nullptr},
-    {"rsdScriptInvokeForEachMulti", "_Z27rsdScriptInvokeForEachMultiPKN7android12renderscript7ContextEPNS0_6ScriptEjPPKNS0_10AllocationEjPS6_PKvjPK12RsScriptCall", 0, RenderScriptRuntime::eModuleKindDriver, nullptr},
-    {"rsdScriptInvokeFunction", "_Z23rsdScriptInvokeFunctionPKN7android12renderscript7ContextEPNS0_6ScriptEjPKvj", 0, RenderScriptRuntime::eModuleKindDriver, nullptr},
-    {"rsdScriptSetGlobalVar", "_Z21rsdScriptSetGlobalVarPKN7android12renderscript7ContextEPKNS0_6ScriptEjPvj", 0, RenderScriptRuntime::eModuleKindDriver, &lldb_private::RenderScriptRuntime::CaptureSetGlobalVar1},
+    {
+        "rsdScriptInit", //name
+        "_Z13rsdScriptInitPKN7android12renderscript7ContextEPNS0_7ScriptCEPKcS7_PKhjj", // symbol name 32 bit
+        "_Z13rsdScriptInitPKN7android12renderscript7ContextEPNS0_7ScriptCEPKcS7_PKhmj", // symbol name 64 bit
+        0, // version
+        RenderScriptRuntime::eModuleKindDriver, // type
+        &lldb_private::RenderScriptRuntime::CaptureScriptInit1 // handler
+    },
+    {
+        "rsdScriptInvokeForEach", // name
+        "_Z22rsdScriptInvokeForEachPKN7android12renderscript7ContextEPNS0_6ScriptEjPKNS0_10AllocationEPS6_PKvjPK12RsScriptCall", // symbol name 32bit
+        "_Z22rsdScriptInvokeForEachPKN7android12renderscript7ContextEPNS0_6ScriptEjPKNS0_10AllocationEPS6_PKvmPK12RsScriptCall", // symbol name 64bit
+        0, // version
+        RenderScriptRuntime::eModuleKindDriver, // type
+        nullptr // handler
+    },
+    {
+        "rsdScriptInvokeForEachMulti", // name
+        "_Z27rsdScriptInvokeForEachMultiPKN7android12renderscript7ContextEPNS0_6ScriptEjPPKNS0_10AllocationEjPS6_PKvjPK12RsScriptCall", // symbol name 32bit
+        "_Z27rsdScriptInvokeForEachMultiPKN7android12renderscript7ContextEPNS0_6ScriptEjPPKNS0_10AllocationEmPS6_PKvmPK12RsScriptCall", // symbol name 64bit
+        0, // version
+        RenderScriptRuntime::eModuleKindDriver, // type
+        nullptr // handler
+    },
+    {
+        "rsdScriptInvokeFunction", // name
+        "_Z23rsdScriptInvokeFunctionPKN7android12renderscript7ContextEPNS0_6ScriptEjPKvj", // symbol name 32bit
+        "_Z23rsdScriptInvokeFunctionPKN7android12renderscript7ContextEPNS0_6ScriptEjPKvm", // symbol name 64bit
+        0, // version
+        RenderScriptRuntime::eModuleKindDriver, // type
+        nullptr // handler
+    },
+    {
+        "rsdScriptSetGlobalVar", // name
+        "_Z21rsdScriptSetGlobalVarPKN7android12renderscript7ContextEPKNS0_6ScriptEjPvj", // symbol name 32bit
+        "_Z21rsdScriptSetGlobalVarPKN7android12renderscript7ContextEPKNS0_6ScriptEjPvm", // symbol name 64bit
+        0, // version
+        RenderScriptRuntime::eModuleKindDriver, // type
+        &lldb_private::RenderScriptRuntime::CaptureSetGlobalVar1 // handler
+    },
 
     //rsdAllocation
-    {"rsdAllocationInit", "_Z17rsdAllocationInitPKN7android12renderscript7ContextEPNS0_10AllocationEb", 0, RenderScriptRuntime::eModuleKindDriver, &lldb_private::RenderScriptRuntime::CaptureAllocationInit1},
-    {"rsdAllocationRead2D", "_Z19rsdAllocationRead2DPKN7android12renderscript7ContextEPKNS0_10AllocationEjjj23RsAllocationCubemapFacejjPvjj", 0, RenderScriptRuntime::eModuleKindDriver, nullptr},
+    {
+        "rsdAllocationInit", // name
+        "_Z17rsdAllocationInitPKN7android12renderscript7ContextEPNS0_10AllocationEb", // symbol name 32bit
+        "_Z17rsdAllocationInitPKN7android12renderscript7ContextEPNS0_10AllocationEb", // symbol name 64bit
+        0, // version
+        RenderScriptRuntime::eModuleKindDriver, // type
+        &lldb_private::RenderScriptRuntime::CaptureAllocationInit1 // handler
+    },
+    {
+        "rsdAllocationRead2D", //name
+        "_Z19rsdAllocationRead2DPKN7android12renderscript7ContextEPKNS0_10AllocationEjjj23RsAllocationCubemapFacejjPvjj", // symbol name 32bit
+        "_Z19rsdAllocationRead2DPKN7android12renderscript7ContextEPKNS0_10AllocationEjjj23RsAllocationCubemapFacejjPvmm", // symbol name 64bit
+        0, // version
+        RenderScriptRuntime::eModuleKindDriver, // type
+        nullptr // handler
+    },
+    {
+        "rsdAllocationDestroy", // name
+        "_Z20rsdAllocationDestroyPKN7android12renderscript7ContextEPNS0_10AllocationE", // symbol name 32bit
+        "_Z20rsdAllocationDestroyPKN7android12renderscript7ContextEPNS0_10AllocationE", // symbol name 64bit
+        0, // version
+        RenderScriptRuntime::eModuleKindDriver, // type
+        &lldb_private::RenderScriptRuntime::CaptureAllocationDestroy // handler
+    },
 };
-const size_t RenderScriptRuntime::s_runtimeHookCount = sizeof(s_runtimeHookDefns)/sizeof(s_runtimeHookDefns[0]);
 
+const size_t RenderScriptRuntime::s_runtimeHookCount = sizeof(s_runtimeHookDefns)/sizeof(s_runtimeHookDefns[0]);
 
 bool
 RenderScriptRuntime::HookCallback(void *baton, StoppointCallbackContext *ctx, lldb::user_id_t break_id, lldb::user_id_t break_loc_id)
@@ -193,13 +644,12 @@ RenderScriptRuntime::HookCallback(void *baton, StoppointCallbackContext *ctx, ll
     return false;
 }
 
-
 void 
 RenderScriptRuntime::HookCallback(RuntimeHook* hook_info, ExecutionContext& context)
 {
     Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
 
-    if(log)
+    if (log)
         log->Printf ("RenderScriptRuntime::HookCallback - '%s' .", hook_info->defn->name);
 
     if (hook_info->defn->grabber) 
@@ -208,56 +658,241 @@ RenderScriptRuntime::HookCallback(RuntimeHook* hook_info, ExecutionContext& cont
     }
 }
 
-
 bool
-RenderScriptRuntime::GetArg32Simple(ExecutionContext& context, uint32_t arg, uint32_t *data)
+RenderScriptRuntime::GetArgSimple(ExecutionContext &context, uint32_t arg, uint64_t *data)
 {
-    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+    // Get a positional integer argument.
+    // Given an ExecutionContext, ``context`` which should be a RenderScript
+    // frame, get the value of the positional argument ``arg`` and save its value
+    // to the address pointed to by ``data``.
+    // returns true on success, false otherwise.
+    // If unsuccessful, the value pointed to by ``data`` is undefined. Otherwise,
+    // ``data`` will be set to the value of the the given ``arg``.
+    // NOTE: only natural width integer arguments for the machine are supported.
+    // Behaviour with non primitive arguments is undefined.
 
     if (!data)
         return false;
 
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
     Error error;
     RegisterContext* reg_ctx = context.GetRegisterContext();
     Process* process = context.GetProcessPtr();
+    bool success = false; // return value
 
-    if (context.GetTargetPtr()->GetArchitecture().GetMachine() == llvm::Triple::ArchType::x86) 
+    if (!context.GetTargetPtr())
     {
-        uint64_t sp = reg_ctx->GetSP();
+        if (log)
+            log->Printf("RenderScriptRuntime::GetArgSimple - Invalid target");
+
+        return false;
+    }
+
+    switch (context.GetTargetPtr()->GetArchitecture().GetMachine())
+    {
+        case llvm::Triple::ArchType::x86:
         {
+            uint64_t sp = reg_ctx->GetSP();
             uint32_t offset = (1 + arg) * sizeof(uint32_t);
-            process->ReadMemory(sp + offset, data, sizeof(uint32_t), error);
-            if(error.Fail())
+            uint32_t result = 0;
+            process->ReadMemory(sp + offset, &result, sizeof(uint32_t), error);
+            if (error.Fail())
             {
-                if(log)
-                    log->Printf ("RenderScriptRuntime:: GetArg32Simple - error reading X86 stack: %s.", error.AsCString());     
+                if (log)
+                    log->Printf("RenderScriptRuntime::GetArgSimple - error reading X86 stack: %s.", error.AsCString());
             }
+            else
+            {
+                *data = result;
+                success = true;
+            }
+
+            break;
         }
-    }
-    else if (context.GetTargetPtr()->GetArchitecture().GetMachine() == llvm::Triple::ArchType::arm) 
-    {
-        if (arg < 4)
+        case llvm::Triple::ArchType::x86_64:
         {
-            const RegisterInfo* rArg = reg_ctx->GetRegisterInfoAtIndex(arg);
+            // amd64 has 6 integer registers, and 8 XMM registers for parameter passing.
+            // Surplus args are spilled onto the stack.
+            // rdi, rsi, rdx, rcx, r8, r9, (zmm0 - 7 for vectors)
+            // ref: AMD64 ABI Draft 0.99.6 – October 7, 2013 – 10:35; Figure 3.4. Retrieved from
+            // http://www.x86-64.org/documentation/abi.pdf
+            if (arg > 5)
+            {
+                if (log)
+                    log->Warning("X86_64 register spill is not supported.");
+                break;
+            }
+            const char * regnames[] = {"rdi", "rsi", "rdx", "rcx", "r8", "r9"};
+            assert((sizeof(regnames) / sizeof(const char *)) > arg);
+            const RegisterInfo *rArg = reg_ctx->GetRegisterInfoByName(regnames[arg]);
             RegisterValue rVal;
-            reg_ctx->ReadRegister(rArg, rVal);
-            (*data) = rVal.GetAsUInt32();
+            success = reg_ctx->ReadRegister(rArg, rVal);
+            if (success)
+            {
+                *data = rVal.GetAsUInt64(0u, &success);
+            }
+            else
+            {
+                if (log)
+                    log->Printf("RenderScriptRuntime::GetArgSimple - error reading x86_64 register: %d.", arg);
+            }
+            break;
         }
-        else
+        case llvm::Triple::ArchType::arm:
         {
-            uint64_t sp = reg_ctx->GetSP();
+            // arm 32 bit
+            if (arg < 4)
             {
+                const RegisterInfo* rArg = reg_ctx->GetRegisterInfoAtIndex(arg);
+                RegisterValue rVal;
+                success = reg_ctx->ReadRegister(rArg, rVal);
+                if (success)
+                {
+                    (*data) = rVal.GetAsUInt32(0u, &success);
+                }
+                else
+                {
+                    if (log)
+                        log->Printf("RenderScriptRuntime::GetArgSimple - error reading ARM register: %d.", arg);
+                }
+            }
+            else
+            {
+                uint64_t sp = reg_ctx->GetSP();
                 uint32_t offset = (arg-4) * sizeof(uint32_t);
                 process->ReadMemory(sp + offset, &data, sizeof(uint32_t), error);
-                if(error.Fail())
+                if (error.Fail())
+                {
+                    if (log)
+                        log->Printf("RenderScriptRuntime::GetArgSimple - error reading ARM stack: %s.", error.AsCString());
+                }
+                else
                 {
-                    if(log)
-                        log->Printf ("RenderScriptRuntime:: GetArg32Simple - error reading ARM stack: %s.", error.AsCString());     
+                    success = true;
                 }
             }
-        }   
+
+            break;
+        }
+        case llvm::Triple::ArchType::aarch64:
+        {
+            // arm 64 bit
+            // first 8 arguments are in the registers
+            if (arg < 8)
+            {
+                const RegisterInfo* rArg = reg_ctx->GetRegisterInfoAtIndex(arg);
+                RegisterValue rVal;
+                success = reg_ctx->ReadRegister(rArg, rVal);
+                if (success)
+                {
+                    *data = rVal.GetAsUInt64(0u, &success);
+                }
+                else
+                {
+                    if (log)
+                        log->Printf("RenderScriptRuntime::GetArgSimple() - AARCH64 - Error while reading the argument #%d", arg);
+                }
+            }
+            else
+            {
+                // @TODO: need to find the argument in the stack
+                if (log)
+                    log->Printf("RenderScriptRuntime::GetArgSimple - AARCH64 - FOR #ARG >= 8 NOT IMPLEMENTED YET. Argument number: %d", arg);
+            }
+            break;
+        }
+        case llvm::Triple::ArchType::mipsel:
+        {
+
+            // read from the registers
+            if (arg < 4){
+                const RegisterInfo* rArg = reg_ctx->GetRegisterInfoAtIndex(arg + 4);
+                RegisterValue rVal;
+                success = reg_ctx->ReadRegister(rArg, rVal);
+                if (success)
+                {
+                    *data = rVal.GetAsUInt64(0u, &success);
+                }
+                else
+                {
+                    if (log)
+                        log->Printf("RenderScriptRuntime::GetArgSimple() - Mips - Error while reading the argument #%d", arg);
+                }
+
+            }
+
+            // read from the stack
+            else
+            {
+                uint64_t sp = reg_ctx->GetSP();
+                uint32_t offset = arg * sizeof(uint32_t);
+                process->ReadMemory(sp + offset, &data, sizeof(uint32_t), error);
+                if (error.Fail())
+                {
+                    if (log)
+                        log->Printf("RenderScriptRuntime::GetArgSimple - error reading Mips stack: %s.", error.AsCString());
+                }
+                else
+                {
+                    success = true;
+                }
+            }
+
+            break;
+        }
+        case llvm::Triple::ArchType::mips64el:
+        {
+            // read from the registers
+            if (arg < 8)
+            {
+                const RegisterInfo* rArg = reg_ctx->GetRegisterInfoAtIndex(arg + 4);
+                RegisterValue rVal;
+                success = reg_ctx->ReadRegister(rArg, rVal);
+                if (success)
+                {
+                    (*data) = rVal.GetAsUInt64(0u, &success);
+                }
+                else
+                {
+                    if (log)
+                        log->Printf("RenderScriptRuntime::GetArgSimple - Mips64 - Error reading the argument #%d", arg);
+                }
+            }
+
+            // read from the stack
+            else
+            {
+                uint64_t sp = reg_ctx->GetSP();
+                uint32_t offset = (arg - 8) * sizeof(uint64_t);
+                process->ReadMemory(sp + offset, &data, sizeof(uint64_t), error);
+                if (error.Fail())
+                {
+                    if (log)
+                        log->Printf("RenderScriptRuntime::GetArgSimple - Mips64 - Error reading Mips64 stack: %s.", error.AsCString());
+                }
+                else
+                {
+                    success = true;
+                }
+            }
+
+            break;
+        }
+        default:
+        {
+            // invalid architecture
+            if (log)
+                log->Printf("RenderScriptRuntime::GetArgSimple - Architecture not supported");
+
+        }
     }
-    return true;
+
+    if (!success)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::GetArgSimple - failed to get argument at index %" PRIu32, arg);
+    }
+    return success;
 }
 
 void 
@@ -267,35 +902,38 @@ RenderScriptRuntime::CaptureSetGlobalVar1(RuntimeHook* hook_info, ExecutionConte
     
     //Context, Script, int, data, length
 
-    Error error;
-    
-    uint32_t rs_context_u32 = 0U;
-    uint32_t rs_script_u32 = 0U;
-    uint32_t rs_id_u32 = 0U;
-    uint32_t rs_data_u32 = 0U;
-    uint32_t rs_length_u32 = 0U;
+    uint64_t rs_context_u64 = 0U;
+    uint64_t rs_script_u64 = 0U;
+    uint64_t rs_id_u64 = 0U;
+    uint64_t rs_data_u64 = 0U;
+    uint64_t rs_length_u64 = 0U;
 
-    std::string resname;
-    std::string cachedir;
+    bool success =
+        GetArgSimple(context, 0, &rs_context_u64) &&
+        GetArgSimple(context, 1, &rs_script_u64) &&
+        GetArgSimple(context, 2, &rs_id_u64) &&
+        GetArgSimple(context, 3, &rs_data_u64) &&
+        GetArgSimple(context, 4, &rs_length_u64);
 
-    GetArg32Simple(context, 0, &rs_context_u32);
-    GetArg32Simple(context, 1, &rs_script_u32);
-    GetArg32Simple(context, 2, &rs_id_u32);
-    GetArg32Simple(context, 3, &rs_data_u32);
-    GetArg32Simple(context, 4, &rs_length_u32);
+    if (!success)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::CaptureSetGlobalVar1 - Error while reading the function parameters");
+        return;
+    }
     
-    if(log)
+    if (log)
     {
         log->Printf ("RenderScriptRuntime::CaptureSetGlobalVar1 - 0x%" PRIx64 ",0x%" PRIx64 " slot %" PRIu64 " = 0x%" PRIx64 ":%" PRIu64 "bytes.",
-                        (uint64_t)rs_context_u32, (uint64_t)rs_script_u32, (uint64_t)rs_id_u32, (uint64_t)rs_data_u32, (uint64_t)rs_length_u32);
+                        rs_context_u64, rs_script_u64, rs_id_u64, rs_data_u64, rs_length_u64);
 
-        addr_t script_addr =  (addr_t)rs_script_u32;
+        addr_t script_addr =  (addr_t)rs_script_u64;
         if (m_scriptMappings.find( script_addr ) != m_scriptMappings.end())
         {
             auto rsm = m_scriptMappings[script_addr];
-            if (rs_id_u32 < rsm->m_globals.size())
+            if (rs_id_u64 < rsm->m_globals.size())
             {
-                auto rsg = rsm->m_globals[rs_id_u32];
+                auto rsg = rsm->m_globals[rs_id_u64];
                 log->Printf ("RenderScriptRuntime::CaptureSetGlobalVar1 - Setting of '%s' within '%s' inferred", rsg.m_name.AsCString(), 
                                 rsm->m_module->GetFileSpec().GetFilename().AsCString());
             }
@@ -310,19 +948,65 @@ RenderScriptRuntime::CaptureAllocationInit1(RuntimeHook* hook_info, ExecutionCon
     
     //Context, Alloc, bool
 
-    Error error;
-    
-    uint32_t rs_context_u32 = 0U;
-    uint32_t rs_alloc_u32 = 0U;
-    uint32_t rs_forceZero_u32 = 0U;
-
-    GetArg32Simple(context, 0, &rs_context_u32);
-    GetArg32Simple(context, 1, &rs_alloc_u32);
-    GetArg32Simple(context, 2, &rs_forceZero_u32);
-        
-    if(log)
+    uint64_t rs_context_u64 = 0U;
+    uint64_t rs_alloc_u64 = 0U;
+    uint64_t rs_forceZero_u64 = 0U;
+
+    bool success =
+        GetArgSimple(context, 0, &rs_context_u64) &&
+        GetArgSimple(context, 1, &rs_alloc_u64) &&
+        GetArgSimple(context, 2, &rs_forceZero_u64);
+    if (!success) // error case
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::CaptureAllocationInit1 - Error while reading the function parameters");
+        return; // abort
+    }
+
+    if (log)
         log->Printf ("RenderScriptRuntime::CaptureAllocationInit1 - 0x%" PRIx64 ",0x%" PRIx64 ",0x%" PRIx64 " .",
-                        (uint64_t)rs_context_u32, (uint64_t)rs_alloc_u32, (uint64_t)rs_forceZero_u32);
+                        rs_context_u64, rs_alloc_u64, rs_forceZero_u64);
+
+    AllocationDetails* alloc = LookUpAllocation(rs_alloc_u64, true);
+    if (alloc)
+        alloc->context = rs_context_u64;
+}
+
+void
+RenderScriptRuntime::CaptureAllocationDestroy(RuntimeHook* hook_info, ExecutionContext& context)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+
+    // Context, Alloc
+    uint64_t rs_context_u64 = 0U;
+    uint64_t rs_alloc_u64 = 0U;
+
+    bool success = GetArgSimple(context, 0, &rs_context_u64) && GetArgSimple(context, 1, &rs_alloc_u64);
+    if (!success) // error case
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::CaptureAllocationDestroy - Error while reading the function parameters");
+        return; // abort
+    }
+
+    if (log)
+        log->Printf("RenderScriptRuntime::CaptureAllocationDestroy - 0x%" PRIx64 ", 0x%" PRIx64 ".",
+                    rs_context_u64, rs_alloc_u64);
+
+    for (auto iter = m_allocations.begin(); iter != m_allocations.end(); ++iter)
+    {
+        auto& allocation_ap = *iter; // get the unique pointer
+        if (allocation_ap->address.isValid() && *allocation_ap->address.get() == rs_alloc_u64)
+        {
+            m_allocations.erase(iter);
+            if (log)
+                log->Printf("RenderScriptRuntime::CaptureAllocationDestroy - Deleted allocation entry");
+            return;
+        }
+    }
+
+    if (log)
+        log->Printf("RenderScriptRuntime::CaptureAllocationDestroy - Couldn't find destroyed allocation");
 }
 
 void 
@@ -334,64 +1018,72 @@ RenderScriptRuntime::CaptureScriptInit1(RuntimeHook* hook_info, ExecutionContext
     Error error;
     Process* process = context.GetProcessPtr();
 
-    uint32_t rs_context_u32 = 0U;
-    uint32_t rs_script_u32 = 0U;
-    uint32_t rs_resnameptr_u32 = 0U;
-    uint32_t rs_cachedirptr_u32 = 0U;
+    uint64_t rs_context_u64 = 0U;
+    uint64_t rs_script_u64 = 0U;
+    uint64_t rs_resnameptr_u64 = 0U;
+    uint64_t rs_cachedirptr_u64 = 0U;
 
     std::string resname;
     std::string cachedir;
 
-    GetArg32Simple(context, 0, &rs_context_u32);
-    GetArg32Simple(context, 1, &rs_script_u32);
-    GetArg32Simple(context, 2, &rs_resnameptr_u32);
-    GetArg32Simple(context, 3, &rs_cachedirptr_u32);
+    // read the function parameters
+    bool success =
+        GetArgSimple(context, 0, &rs_context_u64) &&
+        GetArgSimple(context, 1, &rs_script_u64) &&
+        GetArgSimple(context, 2, &rs_resnameptr_u64) &&
+        GetArgSimple(context, 3, &rs_cachedirptr_u64);
 
-    process->ReadCStringFromMemory((lldb::addr_t)rs_resnameptr_u32, resname, error);
+    if (!success)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::CaptureScriptInit1 - Error while reading the function parameters");
+        return;
+    }
+
+    process->ReadCStringFromMemory((lldb::addr_t)rs_resnameptr_u64, resname, error);
     if (error.Fail())
     {
-        if(log)
+        if (log)
             log->Printf ("RenderScriptRuntime::CaptureScriptInit1 - error reading resname: %s.", error.AsCString());
                    
     }
 
-    process->ReadCStringFromMemory((lldb::addr_t)rs_cachedirptr_u32, cachedir, error);
+    process->ReadCStringFromMemory((lldb::addr_t)rs_cachedirptr_u64, cachedir, error);
     if (error.Fail())
     {
-        if(log)
+        if (log)
             log->Printf ("RenderScriptRuntime::CaptureScriptInit1 - error reading cachedir: %s.", error.AsCString());     
     }
     
     if (log)
         log->Printf ("RenderScriptRuntime::CaptureScriptInit1 - 0x%" PRIx64 ",0x%" PRIx64 " => '%s' at '%s' .",
-                     (uint64_t)rs_context_u32, (uint64_t)rs_script_u32, resname.c_str(), cachedir.c_str());
+                     rs_context_u64, rs_script_u64, resname.c_str(), cachedir.c_str());
 
     if (resname.size() > 0)
     {
         StreamString strm;
         strm.Printf("librs.%s.so", resname.c_str());
 
-        ScriptDetails script;
-        script.cachedir = cachedir;
-        script.resname = resname;
-        script.scriptDyLib.assign(strm.GetData());
-        script.script = rs_script_u32;
-        script.context = rs_context_u32;
-
-        m_scripts.push_back(script);
+        ScriptDetails* script = LookUpScript(rs_script_u64, true);
+        if (script)
+        {
+            script->type = ScriptDetails::eScriptC;
+            script->cacheDir = cachedir;
+            script->resName = resname;
+            script->scriptDyLib = strm.GetData();
+            script->context = addr_t(rs_context_u64);
+        }
 
         if (log)
             log->Printf ("RenderScriptRuntime::CaptureScriptInit1 - '%s' tagged with context 0x%" PRIx64 " and script 0x%" PRIx64 ".",
-                         strm.GetData(), (uint64_t)rs_context_u32, (uint64_t)rs_script_u32);
+                         strm.GetData(), rs_context_u64, rs_script_u64);
     } 
     else if (log)
     {
         log->Printf ("RenderScriptRuntime::CaptureScriptInit1 - resource name invalid, Script not tagged");
     }
-
 }
 
-
 void
 RenderScriptRuntime::LoadRuntimeHooks(lldb::ModuleSP module, ModuleKind kind)
 {
@@ -402,16 +1094,24 @@ RenderScriptRuntime::LoadRuntimeHooks(lldb::ModuleSP module, ModuleKind kind)
         return;
     }
 
-    if ((GetProcess()->GetTarget().GetArchitecture().GetMachine() != llvm::Triple::ArchType::x86)
-        && (GetProcess()->GetTarget().GetArchitecture().GetMachine() != llvm::Triple::ArchType::arm))
+    Target &target = GetProcess()->GetTarget();
+    llvm::Triple::ArchType targetArchType = target.GetArchitecture().GetMachine();
+
+    if (targetArchType != llvm::Triple::ArchType::x86
+        && targetArchType != llvm::Triple::ArchType::arm
+        && targetArchType != llvm::Triple::ArchType::aarch64
+        && targetArchType != llvm::Triple::ArchType::mipsel
+        && targetArchType != llvm::Triple::ArchType::mips64el
+        && targetArchType != llvm::Triple::ArchType::x86_64
+    )
     {
         if (log)
-            log->Printf ("RenderScriptRuntime::LoadRuntimeHooks - Unable to hook runtime. Only X86, ARM supported currently.");
+            log->Printf ("RenderScriptRuntime::LoadRuntimeHooks - Unable to hook runtime. Only X86, ARM, Mips supported currently.");
 
         return;
     }
 
-    Target &target = GetProcess()->GetTarget();
+    uint32_t archByteSize = target.GetArchitecture().GetAddressByteSize();
 
     for (size_t idx = 0; idx < s_runtimeHookCount; idx++)
     {
@@ -420,16 +1120,29 @@ RenderScriptRuntime::LoadRuntimeHooks(lldb::ModuleSP module, ModuleKind kind)
             continue;
         }
 
-        const Symbol *sym = module->FindFirstSymbolWithNameAndType(ConstString(hook_defn->symbol_name), eSymbolTypeCode);
+        const char* symbol_name = (archByteSize == 4) ? hook_defn->symbol_name_m32 : hook_defn->symbol_name_m64;
+
+        const Symbol *sym = module->FindFirstSymbolWithNameAndType(ConstString(symbol_name), eSymbolTypeCode);
+        if (!sym){
+            if (log){
+                log->Printf("RenderScriptRuntime::LoadRuntimeHooks - ERROR: Symbol '%s' related to the function %s not found", symbol_name, hook_defn->name);
+            }
+            continue;
+        }
 
         addr_t addr = sym->GetLoadAddress(&target);
         if (addr == LLDB_INVALID_ADDRESS)
         {
-            if(log)
+            if (log)
                 log->Printf ("RenderScriptRuntime::LoadRuntimeHooks - Unable to resolve the address of hook function '%s' with symbol '%s'.", 
-                             hook_defn->name, hook_defn->symbol_name);
+                             hook_defn->name, symbol_name);
             continue;
         }
+        else
+        {
+            if (log)
+                log->Printf("RenderScriptRuntime::LoadRuntimeHooks - Function %s, address resolved at 0x%" PRIx64, hook_defn->name, addr);
+        }
 
         RuntimeHookSP hook(new RuntimeHook());
         hook->address = addr;
@@ -455,35 +1168,1082 @@ RenderScriptRuntime::FixupScriptDetails(RSModuleDescriptorSP rsmodule_sp)
 
     const ModuleSP module = rsmodule_sp->m_module;
     const FileSpec& file = module->GetPlatformFileSpec();
-    
-    for (const auto &rs_script : m_scripts)
+
+    // Iterate over all of the scripts that we currently know of.
+    // Note: We cant push or pop to m_scripts here or it may invalidate rs_script.
+    for (const auto & rs_script : m_scripts)
+    {
+        // Extract the expected .so file path for this script.
+        std::string dylib;
+        if (!rs_script->scriptDyLib.get(dylib))
+            continue;
+
+        // Only proceed if the module that has loaded corresponds to this script.
+        if (file.GetFilename() != ConstString(dylib.c_str()))
+            continue;
+
+        // Obtain the script address which we use as a key.
+        lldb::addr_t script;
+        if (!rs_script->script.get(script))
+            continue;
+
+        // If we have a script mapping for the current script.
+        if (m_scriptMappings.find(script) != m_scriptMappings.end())
+        {
+            // if the module we have stored is different to the one we just received.
+            if (m_scriptMappings[script] != rsmodule_sp)
+            {
+                if (log)
+                    log->Printf ("RenderScriptRuntime::FixupScriptDetails - Error: script %" PRIx64 " wants reassigned to new rsmodule '%s'.",
+                                    (uint64_t)script, rsmodule_sp->m_module->GetFileSpec().GetFilename().AsCString());
+            }
+        }
+        // We don't have a script mapping for the current script.
+        else
+        {
+            // Obtain the script resource name.
+            std::string resName;
+            if (rs_script->resName.get(resName))
+                // Set the modules resource name.
+                rsmodule_sp->m_resname = resName;
+            // Add Script/Module pair to map.
+            m_scriptMappings[script] = rsmodule_sp;
+            if (log)
+                log->Printf ("RenderScriptRuntime::FixupScriptDetails - script %" PRIx64 " associated with rsmodule '%s'.",
+                                (uint64_t)script, rsmodule_sp->m_module->GetFileSpec().GetFilename().AsCString());
+        }
+    }
+}
+
+// Uses the Target API to evaluate the expression passed as a parameter to the function
+// The result of that expression is returned an unsigned 64 bit int, via the result* paramter.
+// Function returns true on success, and false on failure
+bool
+RenderScriptRuntime::EvalRSExpression(const char* expression, StackFrame* frame_ptr, uint64_t* result)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+    if (log)
+        log->Printf("RenderScriptRuntime::EvalRSExpression(%s)", expression);
+
+    ValueObjectSP expr_result;
+    // Perform the actual expression evaluation
+    GetProcess()->GetTarget().EvaluateExpression(expression, frame_ptr, expr_result);
+
+    if (!expr_result)
+    {
+       if (log)
+           log->Printf("RenderScriptRuntime::EvalRSExpression -  Error: Couldn't evaluate expression");
+       return false;
+    }
+
+    // The result of the expression is invalid
+    if (!expr_result->GetError().Success())
+    {
+        Error err = expr_result->GetError();
+        if (err.GetError() == UserExpression::kNoResult) // Expression returned void, so this is actually a success
+        {
+            if (log)
+                log->Printf("RenderScriptRuntime::EvalRSExpression - Expression returned void");
+
+            result = nullptr;
+            return true;
+        }
+
+        if (log)
+            log->Printf("RenderScriptRuntime::EvalRSExpression - Error evaluating expression result: %s", err.AsCString());
+        return false;
+    }
+
+    bool success = false;
+    *result = expr_result->GetValueAsUnsigned(0, &success); // We only read the result as an unsigned int.
+
+    if (!success)
+    {
+       if (log)
+           log->Printf("RenderScriptRuntime::EvalRSExpression -  Error: Couldn't convert expression result to unsigned int");
+       return false;
+    }
+
+    return true;
+}
+
+namespace // anonymous
+{
+    // max length of an expanded expression
+    const int jit_max_expr_size = 768;
+
+    // Format strings containing the expressions we may need to evaluate.
+    const char runtimeExpressions[][256] =
+    {
+     // Mangled GetOffsetPointer(Allocation*, xoff, yoff, zoff, lod, cubemap)
+     "(int*)_Z12GetOffsetPtrPKN7android12renderscript10AllocationEjjjj23RsAllocationCubemapFace(0x%lx, %u, %u, %u, 0, 0)",
+
+     // Type* rsaAllocationGetType(Context*, Allocation*)
+     "(void*)rsaAllocationGetType(0x%lx, 0x%lx)",
+
+     // rsaTypeGetNativeData(Context*, Type*, void* typeData, size)
+     // Pack the data in the following way mHal.state.dimX; mHal.state.dimY; mHal.state.dimZ;
+     // mHal.state.lodCount; mHal.state.faces; mElement; into typeData
+     // Need to specify 32 or 64 bit for uint_t since this differs between devices
+     "uint%u_t data[6]; (void*)rsaTypeGetNativeData(0x%lx, 0x%lx, data, 6); data[0]", // X dim
+     "uint%u_t data[6]; (void*)rsaTypeGetNativeData(0x%lx, 0x%lx, data, 6); data[1]", // Y dim
+     "uint%u_t data[6]; (void*)rsaTypeGetNativeData(0x%lx, 0x%lx, data, 6); data[2]", // Z dim
+     "uint%u_t data[6]; (void*)rsaTypeGetNativeData(0x%lx, 0x%lx, data, 6); data[5]", // Element ptr
+
+     // rsaElementGetNativeData(Context*, Element*, uint32_t* elemData,size)
+     // Pack mType; mKind; mNormalized; mVectorSize; NumSubElements into elemData
+     "uint32_t data[5]; (void*)rsaElementGetNativeData(0x%lx, 0x%lx, data, 5); data[0]", // Type
+     "uint32_t data[5]; (void*)rsaElementGetNativeData(0x%lx, 0x%lx, data, 5); data[1]", // Kind
+     "uint32_t data[5]; (void*)rsaElementGetNativeData(0x%lx, 0x%lx, data, 5); data[3]", // Vector Size
+     "uint32_t data[5]; (void*)rsaElementGetNativeData(0x%lx, 0x%lx, data, 5); data[4]", // Field Count
+
+      // rsaElementGetSubElements(RsContext con, RsElement elem, uintptr_t *ids, const char **names,
+      // size_t *arraySizes, uint32_t dataSize)
+      // Needed for Allocations of structs to gather details about fields/Subelements
+     "void* ids[%u]; const char* names[%u]; size_t arr_size[%u];"
+     "(void*)rsaElementGetSubElements(0x%lx, 0x%lx, ids, names, arr_size, %u); ids[%u]",     // Element* of field
+
+     "void* ids[%u]; const char* names[%u]; size_t arr_size[%u];"
+     "(void*)rsaElementGetSubElements(0x%lx, 0x%lx, ids, names, arr_size, %u); names[%u]",   // Name of field
+
+     "void* ids[%u]; const char* names[%u]; size_t arr_size[%u];"
+     "(void*)rsaElementGetSubElements(0x%lx, 0x%lx, ids, names, arr_size, %u); arr_size[%u]" // Array size of field
+    };
+
+
+    // Temporary workaround for MIPS, until the compiler emits the JAL instruction when invoking directly the function.
+    // At the moment, when evaluating an expression involving a function call, the LLVM codegen for Mips  emits a JAL
+    // instruction, which is able to jump in the range +/- 128MB with respect to the current program counter ($pc). If
+    // the requested function happens to reside outside the above region, the function address will be truncated and the
+    // function invocation will fail. This is a problem in the RS plugin as we rely on the RS API to probe the number and
+    // the nature of allocations. A proper solution in the MIPS compiler is currently being investigated. As temporary
+    // work around for this context, we'll invoke the RS API through function pointers, which cause the compiler to emit a
+    // register based JALR instruction.
+    const char runtimeExpressions_mips[][512] =
+    {
+    // Mangled GetOffsetPointer(Allocation*, xoff, yoff, zoff, lod, cubemap)
+    "int* (*f) (void*, int, int, int, int, int) = (int* (*) (void*, int, int, int, int, int)) "
+        "_Z12GetOffsetPtrPKN7android12renderscript10AllocationEjjjj23RsAllocationCubemapFace; "
+        "(int*) f((void*) 0x%lx, %u, %u, %u, 0, 0)",
+
+    // Type* rsaAllocationGetType(Context*, Allocation*)
+    "void* (*f) (void*, void*) = (void* (*) (void*, void*)) rsaAllocationGetType; (void*) f((void*) 0x%lx, (void*) 0x%lx)",
+
+    // rsaTypeGetNativeData(Context*, Type*, void* typeData, size)
+    // Pack the data in the following way mHal.state.dimX; mHal.state.dimY; mHal.state.dimZ;
+    // mHal.state.lodCount; mHal.state.faces; mElement; into typeData
+    // Need to specify 32 or 64 bit for uint_t since this differs between devices
+    "uint%u_t data[6]; void* (*f)(void*, void*, uintptr_t*, uint32_t) = (void* (*)(void*, void*, uintptr_t*, uint32_t)) "
+        "rsaTypeGetNativeData; (void*) f((void*) 0x%lx, (void*) 0x%lx, data, 6); data[0]",
+    "uint%u_t data[6]; void* (*f)(void*, void*, uintptr_t*, uint32_t) = (void* (*)(void*, void*, uintptr_t*, uint32_t)) "
+        "rsaTypeGetNativeData; (void*) f((void*) 0x%lx, (void*) 0x%lx, data, 6); data[1]",
+    "uint%u_t data[6]; void* (*f)(void*, void*, uintptr_t*, uint32_t) = (void* (*)(void*, void*, uintptr_t*, uint32_t)) "
+        "rsaTypeGetNativeData; (void*) f((void*) 0x%lx, (void*) 0x%lx, data, 6); data[2]",
+    "uint%u_t data[6]; void* (*f)(void*, void*, uintptr_t*, uint32_t) = (void* (*)(void*, void*, uintptr_t*, uint32_t)) "
+        "rsaTypeGetNativeData; (void*) f((void*) 0x%lx, (void*) 0x%lx, data, 6); data[5]",
+
+    // rsaElementGetNativeData(Context*, Element*, uint32_t* elemData,size)
+    // Pack mType; mKind; mNormalized; mVectorSize; NumSubElements into elemData
+    "uint32_t data[5]; void* (*f)(void*, void*, uint32_t*, uint32_t) = (void* (*)(void*, void*, uint32_t*, uint32_t)) "
+        "rsaElementGetNativeData; (void*) f((void*) 0x%lx, (void*) 0x%lx, data, 5); data[0]", // Type
+    "uint32_t data[5]; void* (*f)(void*, void*, uint32_t*, uint32_t) = (void* (*)(void*, void*, uint32_t*, uint32_t)) "
+        "rsaElementGetNativeData; (void*) f((void*) 0x%lx, (void*) 0x%lx, data, 5); data[1]", // Kind
+    "uint32_t data[5]; void* (*f)(void*, void*, uint32_t*, uint32_t) = (void* (*)(void*, void*, uint32_t*, uint32_t)) "
+        "rsaElementGetNativeData; (void*) f((void*) 0x%lx, (void*) 0x%lx, data, 5); data[3]", // Vector size
+    "uint32_t data[5]; void* (*f)(void*, void*, uint32_t*, uint32_t) = (void* (*)(void*, void*, uint32_t*, uint32_t)) "
+        "rsaElementGetNativeData; (void*) f((void*) 0x%lx, (void*) 0x%lx, data, 5); data[4]", // Field count
+
+    // rsaElementGetSubElements(RsContext con, RsElement elem, uintptr_t *ids, const char **names,
+    // size_t *arraySizes, uint32_t dataSize)
+    // Needed for Allocations of structs to gather details about fields/Subelements
+   "void* ids[%u]; const char* names[%u]; size_t arr_size[%u];"
+        "void* (*f) (void*, void*, uintptr_t*, const char**, size_t*, uint32_t) = "
+        "(void* (*) (void*, void*, uintptr_t*, const char**, size_t*, uint32_t)) rsaElementGetSubElements;"
+        "(void*) f((void*) 0x%lx, (void*) 0x%lx, (uintptr_t*) ids, names, arr_size, (uint32_t) %u);"
+        "ids[%u]", // Element* of field
+   "void* ids[%u]; const char* names[%u]; size_t arr_size[%u];"
+        "void* (*f) (void*, void*, uintptr_t*, const char**, size_t*, uint32_t) = "
+        "(void* (*) (void*, void*, uintptr_t*, const char**, size_t*, uint32_t)) rsaElementGetSubElements;"
+        "(void*) f((void*) 0x%lx, (void*) 0x%lx, (uintptr_t*) ids, names, arr_size, (uint32_t) %u);"
+        "names[%u]", // Name of field
+   "void* ids[%u]; const char* names[%u]; size_t arr_size[%u];"
+        "void* (*f) (void*, void*, uintptr_t*, const char**, size_t*, uint32_t) = "
+        "(void* (*) (void*, void*, uintptr_t*, const char**, size_t*, uint32_t)) rsaElementGetSubElements;"
+        "(void*) f((void*) 0x%lx, (void*) 0x%lx, (uintptr_t*) ids, names, arr_size, (uint32_t) %u);"
+        "arr_size[%u]" // Array size of field
+    };
+
+} // end of the anonymous namespace
+
+
+// Retrieve the string to JIT for the given expression
+const char*
+RenderScriptRuntime::JITTemplate(ExpressionStrings e)
+{
+    // be nice to your Mips friend when adding new expression strings
+    static_assert(sizeof(runtimeExpressions)/sizeof(runtimeExpressions[0]) ==
+            sizeof(runtimeExpressions_mips)/sizeof(runtimeExpressions_mips[0]),
+            "#runtimeExpressions != #runtimeExpressions_mips");
+
+    assert((e >= eExprGetOffsetPtr && e <= eExprSubelementsArrSize) &&
+           "Expression string out of bounds");
+
+    llvm::Triple::ArchType arch = GetTargetRef().GetArchitecture().GetMachine();
+
+    // mips JAL workaround
+    if(arch == llvm::Triple::ArchType::mips64el || arch == llvm::Triple::ArchType::mipsel)
+        return runtimeExpressions_mips[e];
+    else
+        return runtimeExpressions[e];
+}
+
+
+// JITs the RS runtime for the internal data pointer of an allocation.
+// Is passed x,y,z coordinates for the pointer to a specific element.
+// Then sets the data_ptr member in Allocation with the result.
+// Returns true on success, false otherwise
+bool
+RenderScriptRuntime::JITDataPointer(AllocationDetails* allocation, StackFrame* frame_ptr,
+                                    unsigned int x, unsigned int y, unsigned int z)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+
+    if (!allocation->address.isValid())
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::JITDataPointer - Failed to find allocation details");
+        return false;
+    }
+
+    const char* expr_cstr = JITTemplate(eExprGetOffsetPtr);
+    char buffer[jit_max_expr_size];
+
+    int chars_written = snprintf(buffer, jit_max_expr_size, expr_cstr, *allocation->address.get(), x, y, z);
+    if (chars_written < 0)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::JITDataPointer - Encoding error in snprintf()");
+        return false;
+    }
+    else if (chars_written >= jit_max_expr_size)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::JITDataPointer - Expression too long");
+        return false;
+    }
+
+    uint64_t result = 0;
+    if (!EvalRSExpression(buffer, frame_ptr, &result))
+        return false;
+
+    addr_t mem_ptr = static_cast<lldb::addr_t>(result);
+    allocation->data_ptr = mem_ptr;
+
+    return true;
+}
+
+// JITs the RS runtime for the internal pointer to the RS Type of an allocation
+// Then sets the type_ptr member in Allocation with the result.
+// Returns true on success, false otherwise
+bool
+RenderScriptRuntime::JITTypePointer(AllocationDetails* allocation, StackFrame* frame_ptr)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+
+    if (!allocation->address.isValid() || !allocation->context.isValid())
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::JITTypePointer - Failed to find allocation details");
+        return false;
+    }
+
+    const char* expr_cstr = JITTemplate(eExprAllocGetType);
+    char buffer[jit_max_expr_size];
+
+    int chars_written = snprintf(buffer, jit_max_expr_size, expr_cstr, *allocation->context.get(), *allocation->address.get());
+    if (chars_written < 0)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::JITDataPointer - Encoding error in snprintf()");
+        return false;
+    }
+    else if (chars_written >= jit_max_expr_size)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::JITTypePointer - Expression too long");
+        return false;
+    }
+
+    uint64_t result = 0;
+    if (!EvalRSExpression(buffer, frame_ptr, &result))
+        return false;
+
+    addr_t type_ptr = static_cast<lldb::addr_t>(result);
+    allocation->type_ptr = type_ptr;
+
+    return true;
+}
+
+// JITs the RS runtime for information about the dimensions and type of an allocation
+// Then sets dimension and element_ptr members in Allocation with the result.
+// Returns true on success, false otherwise
+bool
+RenderScriptRuntime::JITTypePacked(AllocationDetails* allocation, StackFrame* frame_ptr)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+
+    if (!allocation->type_ptr.isValid() || !allocation->context.isValid())
     {
-        if (file.GetFilename() == ConstString(rs_script.scriptDyLib.c_str()))
+        if (log)
+            log->Printf("RenderScriptRuntime::JITTypePacked - Failed to find allocation details");
+        return false;
+    }
+
+    // Expression is different depending on if device is 32 or 64 bit
+    uint32_t archByteSize = GetProcess()->GetTarget().GetArchitecture().GetAddressByteSize();
+    const unsigned int bits = archByteSize == 4 ? 32 : 64;
+
+    // We want 4 elements from packed data
+    const unsigned int num_exprs = 4;
+    assert(num_exprs == (eExprTypeElemPtr - eExprTypeDimX + 1) && "Invalid number of expressions");
+
+    char buffer[num_exprs][jit_max_expr_size];
+    uint64_t results[num_exprs];
+
+    for (unsigned int i = 0; i < num_exprs; ++i)
+    {
+        const char* expr_cstr = JITTemplate((ExpressionStrings) (eExprTypeDimX + i));
+        int chars_written = snprintf(buffer[i], jit_max_expr_size, expr_cstr, bits,
+                                     *allocation->context.get(), *allocation->type_ptr.get());
+        if (chars_written < 0)
+        {
+            if (log)
+                log->Printf("RenderScriptRuntime::JITDataPointer - Encoding error in snprintf()");
+            return false;
+        }
+        else if (chars_written >= jit_max_expr_size)
+        {
+            if (log)
+                log->Printf("RenderScriptRuntime::JITTypePacked - Expression too long");
+            return false;
+        }
+
+        // Perform expression evaluation
+        if (!EvalRSExpression(buffer[i], frame_ptr, &results[i]))
+            return false;
+    }
+
+    // Assign results to allocation members
+    AllocationDetails::Dimension dims;
+    dims.dim_1 = static_cast<uint32_t>(results[0]);
+    dims.dim_2 = static_cast<uint32_t>(results[1]);
+    dims.dim_3 = static_cast<uint32_t>(results[2]);
+    allocation->dimension = dims;
+
+    addr_t elem_ptr = static_cast<lldb::addr_t>(results[3]);
+    allocation->element.element_ptr = elem_ptr;
+
+    if (log)
+        log->Printf("RenderScriptRuntime::JITTypePacked - dims (%u, %u, %u) Element*: 0x%" PRIx64,
+                    dims.dim_1, dims.dim_2, dims.dim_3, elem_ptr);
+
+    return true;
+}
+
+// JITs the RS runtime for information about the Element of an allocation
+// Then sets type, type_vec_size, field_count and type_kind members in Element with the result.
+// Returns true on success, false otherwise
+bool
+RenderScriptRuntime::JITElementPacked(Element& elem, const lldb::addr_t context, StackFrame* frame_ptr)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+
+    if (!elem.element_ptr.isValid())
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::JITElementPacked - Failed to find allocation details");
+        return false;
+    }
+
+    // We want 4 elements from packed data
+    const unsigned int num_exprs = 4;
+    assert(num_exprs == (eExprElementFieldCount - eExprElementType + 1) && "Invalid number of expressions");
+
+    char buffer[num_exprs][jit_max_expr_size];
+    uint64_t results[num_exprs];
+
+    for (unsigned int i = 0; i < num_exprs; i++)
+    {
+        const char* expr_cstr = JITTemplate((ExpressionStrings) (eExprElementType + i));
+        int chars_written = snprintf(buffer[i], jit_max_expr_size, expr_cstr, context, *elem.element_ptr.get());
+        if (chars_written < 0)
         {
-            if (m_scriptMappings.find( rs_script.script ) != m_scriptMappings.end())
+            if (log)
+                log->Printf("RenderScriptRuntime::JITElementPacked - Encoding error in snprintf()");
+            return false;
+        }
+        else if (chars_written >= jit_max_expr_size)
+        {
+            if (log)
+                log->Printf("RenderScriptRuntime::JITElementPacked - Expression too long");
+            return false;
+        }
+
+        // Perform expression evaluation
+        if (!EvalRSExpression(buffer[i], frame_ptr, &results[i]))
+            return false;
+    }
+
+    // Assign results to allocation members
+    elem.type = static_cast<RenderScriptRuntime::Element::DataType>(results[0]);
+    elem.type_kind = static_cast<RenderScriptRuntime::Element::DataKind>(results[1]);
+    elem.type_vec_size = static_cast<uint32_t>(results[2]);
+    elem.field_count = static_cast<uint32_t>(results[3]);
+
+    if (log)
+        log->Printf("RenderScriptRuntime::JITElementPacked - data type %u, pixel type %u, vector size %u, field count %u",
+                    *elem.type.get(), *elem.type_kind.get(), *elem.type_vec_size.get(), *elem.field_count.get());
+
+    // If this Element has subelements then JIT rsaElementGetSubElements() for details about its fields
+    if (*elem.field_count.get() > 0 && !JITSubelements(elem, context, frame_ptr))
+        return false;
+
+    return true;
+}
+
+// JITs the RS runtime for information about the subelements/fields of a struct allocation
+// This is necessary for infering the struct type so we can pretty print the allocation's contents.
+// Returns true on success, false otherwise
+bool
+RenderScriptRuntime::JITSubelements(Element& elem, const lldb::addr_t context, StackFrame* frame_ptr)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+
+    if (!elem.element_ptr.isValid() || !elem.field_count.isValid())
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::JITSubelements - Failed to find allocation details");
+        return false;
+    }
+
+    const short num_exprs = 3;
+    assert(num_exprs == (eExprSubelementsArrSize - eExprSubelementsId + 1) && "Invalid number of expressions");
+
+    char expr_buffer[jit_max_expr_size];
+    uint64_t results;
+
+    // Iterate over struct fields.
+    const uint32_t field_count = *elem.field_count.get();
+    for (unsigned int field_index = 0; field_index < field_count; ++field_index)
+    {
+        Element child;
+        for (unsigned int expr_index = 0; expr_index < num_exprs; ++expr_index)
+        {
+            const char* expr_cstr = JITTemplate((ExpressionStrings) (eExprSubelementsId + expr_index));
+            int chars_written = snprintf(expr_buffer, jit_max_expr_size, expr_cstr,
+                                         field_count, field_count, field_count,
+                                         context, *elem.element_ptr.get(), field_count, field_index);
+            if (chars_written < 0)
+            {
+                if (log)
+                    log->Printf("RenderScriptRuntime::JITSubelements - Encoding error in snprintf()");
+                return false;
+            }
+            else if (chars_written >= jit_max_expr_size)
             {
-                if (m_scriptMappings[rs_script.script] != rsmodule_sp)
+                if (log)
+                    log->Printf("RenderScriptRuntime::JITSubelements - Expression too long");
+                return false;
+            }
+
+            // Perform expression evaluation
+            if (!EvalRSExpression(expr_buffer, frame_ptr, &results))
+                return false;
+
+            if (log)
+                log->Printf("RenderScriptRuntime::JITSubelements - Expr result 0x%" PRIx64, results);
+
+            switch(expr_index)
+            {
+                case 0: // Element* of child
+                    child.element_ptr = static_cast<addr_t>(results);
+                    break;
+                case 1: // Name of child
                 {
-                    if (log)
+                    lldb::addr_t address = static_cast<addr_t>(results);
+                    Error err;
+                    std::string name;
+                    GetProcess()->ReadCStringFromMemory(address, name, err);
+                    if (!err.Fail())
+                        child.type_name = ConstString(name);
+                    else
                     {
-                        log->Printf ("RenderScriptRuntime::FixupScriptDetails - Error: script %" PRIx64 " wants reassigned to new rsmodule '%s'.", 
-                                     (uint64_t)rs_script.script, rsmodule_sp->m_module->GetFileSpec().GetFilename().AsCString());
+                        if (log)
+                            log->Printf("RenderScriptRuntime::JITSubelements - Warning: Couldn't read field name");
                     }
+                    break;
                 }
+                case 2: // Array size of child
+                    child.array_size = static_cast<uint32_t>(results);
+                    break;
             }
-            else
+        }
+
+        // We need to recursively JIT each Element field of the struct since
+        // structs can be nested inside structs.
+        if (!JITElementPacked(child, context, frame_ptr))
+            return false;
+        elem.children.push_back(child);
+    }
+
+    // Try to infer the name of the struct type so we can pretty print the allocation contents.
+    FindStructTypeName(elem, frame_ptr);
+
+    return true;
+}
+
+// JITs the RS runtime for the address of the last element in the allocation.
+// The `elem_size` paramter represents the size of a single element, including padding.
+// Which is needed as an offset from the last element pointer.
+// Using this offset minus the starting address we can calculate the size of the allocation.
+// Returns true on success, false otherwise
+bool
+RenderScriptRuntime::JITAllocationSize(AllocationDetails* allocation, StackFrame* frame_ptr)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+
+    if (!allocation->address.isValid() || !allocation->dimension.isValid()
+        || !allocation->data_ptr.isValid() || !allocation->element.datum_size.isValid())
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::JITAllocationSize - Failed to find allocation details");
+        return false;
+    }
+
+    // Find dimensions
+    unsigned int dim_x = allocation->dimension.get()->dim_1;
+    unsigned int dim_y = allocation->dimension.get()->dim_2;
+    unsigned int dim_z = allocation->dimension.get()->dim_3;
+
+    // Our plan of jitting the last element address doesn't seem to work for struct Allocations
+    // Instead try to infer the size ourselves without any inter element padding.
+    if (allocation->element.children.size() > 0)
+    {
+        if (dim_x == 0) dim_x = 1;
+        if (dim_y == 0) dim_y = 1;
+        if (dim_z == 0) dim_z = 1;
+
+        allocation->size = dim_x * dim_y * dim_z * *allocation->element.datum_size.get();
+
+        if (log)
+            log->Printf("RenderScriptRuntime::JITAllocationSize - Infered size of struct allocation %u", *allocation->size.get());
+
+        return true;
+    }
+
+    const char* expr_cstr = JITTemplate(eExprGetOffsetPtr);
+    char buffer[jit_max_expr_size];
+
+    // Calculate last element
+    dim_x = dim_x == 0 ? 0 : dim_x - 1;
+    dim_y = dim_y == 0 ? 0 : dim_y - 1;
+    dim_z = dim_z == 0 ? 0 : dim_z - 1;
+
+    int chars_written = snprintf(buffer, jit_max_expr_size, expr_cstr, *allocation->address.get(),
+                                 dim_x, dim_y, dim_z);
+    if (chars_written < 0)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::JITAllocationSize - Encoding error in snprintf()");
+        return false;
+    }
+    else if (chars_written >= jit_max_expr_size)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::JITAllocationSize - Expression too long");
+        return false;
+    }
+
+    uint64_t result = 0;
+    if (!EvalRSExpression(buffer, frame_ptr, &result))
+        return false;
+
+    addr_t mem_ptr = static_cast<lldb::addr_t>(result);
+    // Find pointer to last element and add on size of an element
+    allocation->size = static_cast<uint32_t>(mem_ptr - *allocation->data_ptr.get()) + *allocation->element.datum_size.get();
+
+    return true;
+}
+
+// JITs the RS runtime for information about the stride between rows in the allocation.
+// This is done to detect padding, since allocated memory is 16-byte aligned.
+// Returns true on success, false otherwise
+bool
+RenderScriptRuntime::JITAllocationStride(AllocationDetails* allocation, StackFrame* frame_ptr)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+
+    if (!allocation->address.isValid() || !allocation->data_ptr.isValid())
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::JITAllocationStride - Failed to find allocation details");
+        return false;
+    }
+
+    const char* expr_cstr = JITTemplate(eExprGetOffsetPtr);
+    char buffer[jit_max_expr_size];
+
+    int chars_written = snprintf(buffer, jit_max_expr_size, expr_cstr, *allocation->address.get(),
+                                 0, 1, 0);
+    if (chars_written < 0)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::JITAllocationStride - Encoding error in snprintf()");
+        return false;
+    }
+    else if (chars_written >= jit_max_expr_size)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::JITAllocationStride - Expression too long");
+        return false;
+    }
+
+    uint64_t result = 0;
+    if (!EvalRSExpression(buffer, frame_ptr, &result))
+        return false;
+
+    addr_t mem_ptr = static_cast<lldb::addr_t>(result);
+    allocation->stride = static_cast<uint32_t>(mem_ptr - *allocation->data_ptr.get());
+
+    return true;
+}
+
+// JIT all the current runtime info regarding an allocation
+bool
+RenderScriptRuntime::RefreshAllocation(AllocationDetails* allocation, StackFrame* frame_ptr)
+{
+    // GetOffsetPointer()
+    if (!JITDataPointer(allocation, frame_ptr))
+        return false;
+
+    // rsaAllocationGetType()
+    if (!JITTypePointer(allocation, frame_ptr))
+        return false;
+
+    // rsaTypeGetNativeData()
+    if (!JITTypePacked(allocation, frame_ptr))
+        return false;
+
+    // rsaElementGetNativeData()
+    if (!JITElementPacked(allocation->element, *allocation->context.get(), frame_ptr))
+        return false;
+
+    // Sets the datum_size member in Element
+    SetElementSize(allocation->element);
+
+    // Use GetOffsetPointer() to infer size of the allocation
+    if (!JITAllocationSize(allocation, frame_ptr))
+        return false;
+
+    return true;
+}
+
+// Function attempts to set the type_name member of the paramaterised Element object.
+// This string should be the name of the struct type the Element represents.
+// We need this string for pretty printing the Element to users.
+void
+RenderScriptRuntime::FindStructTypeName(Element& elem, StackFrame* frame_ptr)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+
+    if (!elem.type_name.IsEmpty()) // Name already set
+        return;
+    else
+        elem.type_name = Element::GetFallbackStructName(); // Default type name if we don't succeed
+
+    // Find all the global variables from the script rs modules
+    VariableList variable_list;
+    for (auto module_sp : m_rsmodules)
+        module_sp->m_module->FindGlobalVariables(RegularExpression("."), true, UINT32_MAX, variable_list);
+
+    // Iterate over all the global variables looking for one with a matching type to the Element.
+    // We make the assumption a match exists since there needs to be a global variable to reflect the
+    // struct type back into java host code.
+    for (uint32_t var_index = 0; var_index < variable_list.GetSize(); ++var_index)
+    {
+        const VariableSP var_sp(variable_list.GetVariableAtIndex(var_index));
+        if (!var_sp)
+           continue;
+
+        ValueObjectSP valobj_sp = ValueObjectVariable::Create(frame_ptr, var_sp);
+        if (!valobj_sp)
+            continue;
+
+        // Find the number of variable fields.
+        // If it has no fields, or more fields than our Element, then it can't be the struct we're looking for.
+        // Don't check for equality since RS can add extra struct members for padding.
+        size_t num_children = valobj_sp->GetNumChildren();
+        if (num_children > elem.children.size() || num_children == 0)
+            continue;
+
+        // Iterate over children looking for members with matching field names.
+        // If all the field names match, this is likely the struct we want.
+        //
+        //   TODO: This could be made more robust by also checking children data sizes, or array size
+        bool found = true;
+        for (size_t child_index = 0; child_index < num_children; ++child_index)
+        {
+            ValueObjectSP child = valobj_sp->GetChildAtIndex(child_index, true);
+            if (!child || (child->GetName() != elem.children[child_index].type_name))
             {
-                m_scriptMappings[rs_script.script] = rsmodule_sp;
-                rsmodule_sp->m_resname = rs_script.resname;
-                if (log)
-                {
-                    log->Printf ("RenderScriptRuntime::FixupScriptDetails - script %" PRIx64 " associated with rsmodule '%s'.", 
-                                    (uint64_t)rs_script.script, rsmodule_sp->m_module->GetFileSpec().GetFilename().AsCString());
-                }
+                found = false;
+                break;
+            }
+        }
+
+        // RS can add extra struct members for padding in the format '#rs_padding_[0-9]+'
+        if (found && num_children < elem.children.size())
+        {
+            const unsigned int size_diff = elem.children.size() - num_children;
+            if (log)
+                log->Printf("RenderScriptRuntime::FindStructTypeName - %u padding struct entries", size_diff);
+
+            for (unsigned int padding_index = 0; padding_index < size_diff; ++padding_index)
+            {
+                const ConstString& name = elem.children[num_children + padding_index].type_name;
+                if (strcmp(name.AsCString(), "#rs_padding") < 0)
+                    found = false;
             }
         }
+
+        // We've found a global var with matching type
+        if (found)
+        {
+            // Dereference since our Element type isn't a pointer.
+            if (valobj_sp->IsPointerType())
+            {
+                Error err;
+                ValueObjectSP deref_valobj = valobj_sp->Dereference(err);
+                if (!err.Fail())
+                    valobj_sp = deref_valobj;
+            }
+
+            // Save name of variable in Element.
+            elem.type_name = valobj_sp->GetTypeName();
+            if (log)
+                log->Printf("RenderScriptRuntime::FindStructTypeName - Element name set to %s", elem.type_name.AsCString());
+
+            return;
+        }
     }
-    
+}
+
+// Function sets the datum_size member of Element. Representing the size of a single instance including padding.
+// Assumes the relevant allocation information has already been jitted.
+void
+RenderScriptRuntime::SetElementSize(Element& elem)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+    const Element::DataType type = *elem.type.get();
+    assert(type >= Element::RS_TYPE_NONE && type <= Element::RS_TYPE_FONT
+                                                   && "Invalid allocation type");
+
+    const unsigned int vec_size = *elem.type_vec_size.get();
+    unsigned int data_size = 0;
+    unsigned int padding = 0;
+
+    // Element is of a struct type, calculate size recursively.
+    if ((type == Element::RS_TYPE_NONE) && (elem.children.size() > 0))
+    {
+        for (Element& child : elem.children)
+        {
+            SetElementSize(child);
+            const unsigned int array_size = child.array_size.isValid() ? *child.array_size.get() : 1;
+            data_size += *child.datum_size.get() * array_size;
+        }
+    }
+    else if (type == Element::RS_TYPE_UNSIGNED_5_6_5 || type == Element::RS_TYPE_UNSIGNED_5_5_5_1 ||
+             type == Element::RS_TYPE_UNSIGNED_4_4_4_4) // These have been packed already
+    {
+        data_size = AllocationDetails::RSTypeToFormat[type][eElementSize];
+    }
+    else if (type < Element::RS_TYPE_ELEMENT)
+    {
+        data_size = vec_size * AllocationDetails::RSTypeToFormat[type][eElementSize];
+        if (vec_size == 3)
+            padding = AllocationDetails::RSTypeToFormat[type][eElementSize];
+    }
+    else
+        data_size = GetProcess()->GetTarget().GetArchitecture().GetAddressByteSize();
+
+    elem.padding = padding;
+    elem.datum_size = data_size + padding;
+    if (log)
+        log->Printf("RenderScriptRuntime::SetElementSize - element size set to %u", data_size + padding);
+}
+
+// Given an allocation, this function copies the allocation contents from device into a buffer on the heap.
+// Returning a shared pointer to the buffer containing the data.
+std::shared_ptr<uint8_t>
+RenderScriptRuntime::GetAllocationData(AllocationDetails* allocation, StackFrame* frame_ptr)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+
+    // JIT all the allocation details
+    if (allocation->shouldRefresh())
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::GetAllocationData - Allocation details not calculated yet, jitting info");
+
+        if (!RefreshAllocation(allocation, frame_ptr))
+        {
+            if (log)
+                log->Printf("RenderScriptRuntime::GetAllocationData - Couldn't JIT allocation details");
+            return nullptr;
+        }
+    }
+
+    assert(allocation->data_ptr.isValid() && allocation->element.type.isValid() && allocation->element.type_vec_size.isValid()
+           && allocation->size.isValid() && "Allocation information not available");
+
+    // Allocate a buffer to copy data into
+    const unsigned int size = *allocation->size.get();
+    std::shared_ptr<uint8_t> buffer(new uint8_t[size]);
+    if (!buffer)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::GetAllocationData - Couldn't allocate a %u byte buffer", size);
+        return nullptr;
+    }
+
+    // Read the inferior memory
+    Error error;
+    lldb::addr_t data_ptr = *allocation->data_ptr.get();
+    GetProcess()->ReadMemory(data_ptr, buffer.get(), size, error);
+    if (error.Fail())
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::GetAllocationData - '%s' Couldn't read %u bytes of allocation data from 0x%" PRIx64,
+                        error.AsCString(), size, data_ptr);
+        return nullptr;
+    }
+
+    return buffer;
+}
+
+// Function copies data from a binary file into an allocation.
+// There is a header at the start of the file, FileHeader, before the data content itself.
+// Information from this header is used to display warnings to the user about incompatabilities
+bool
+RenderScriptRuntime::LoadAllocation(Stream &strm, const uint32_t alloc_id, const char* filename, StackFrame* frame_ptr)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+
+    // Find allocation with the given id
+    AllocationDetails* alloc = FindAllocByID(strm, alloc_id);
+    if (!alloc)
+        return false;
+
+    if (log)
+        log->Printf("RenderScriptRuntime::LoadAllocation - Found allocation 0x%" PRIx64, *alloc->address.get());
+
+    // JIT all the allocation details
+    if (alloc->shouldRefresh())
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::LoadAllocation - Allocation details not calculated yet, jitting info");
+
+        if (!RefreshAllocation(alloc, frame_ptr))
+        {
+            if (log)
+                log->Printf("RenderScriptRuntime::LoadAllocation - Couldn't JIT allocation details");
+            return false;
+        }
+    }
+
+    assert(alloc->data_ptr.isValid() && alloc->element.type.isValid() && alloc->element.type_vec_size.isValid()
+           && alloc->size.isValid() && alloc->element.datum_size.isValid() && "Allocation information not available");
+
+    // Check we can read from file
+    FileSpec file(filename, true);
+    if (!file.Exists())
+    {
+        strm.Printf("Error: File %s does not exist", filename);
+        strm.EOL();
+        return false;
+    }
+
+    if (!file.Readable())
+    {
+        strm.Printf("Error: File %s does not have readable permissions", filename);
+        strm.EOL();
+        return false;
+    }
+
+    // Read file into data buffer
+    DataBufferSP data_sp(file.ReadFileContents());
+
+    // Cast start of buffer to FileHeader and use pointer to read metadata
+    void* file_buffer = data_sp->GetBytes();
+    const AllocationDetails::FileHeader* head = static_cast<AllocationDetails::FileHeader*>(file_buffer);
+
+    // Advance buffer past header
+    file_buffer = static_cast<uint8_t*>(file_buffer) + head->hdr_size;
+
+    if (log)
+        log->Printf("RenderScriptRuntime::LoadAllocation - header type %u, element size %u",
+                    head->type, head->element_size);
+
+    // Check if the target allocation and file both have the same number of bytes for an Element
+    if (*alloc->element.datum_size.get() != head->element_size)
+    {
+        strm.Printf("Warning: Mismatched Element sizes - file %u bytes, allocation %u bytes",
+                    head->element_size, *alloc->element.datum_size.get());
+        strm.EOL();
+    }
+
+    // Check if the target allocation and file both have the same integral type
+    const unsigned int type = static_cast<unsigned int>(*alloc->element.type.get());
+    if (type != head->type)
+    {
+        // Enum value isn't monotonous, so doesn't always index RsDataTypeToString array
+        unsigned int printable_target_type_index = type;
+        unsigned int printable_head_type_index = head->type;
+        if (type >= Element::RS_TYPE_ELEMENT && type <= Element::RS_TYPE_FONT)
+            printable_target_type_index = static_cast<Element::DataType>(
+                                         (type - Element::RS_TYPE_ELEMENT) + Element::RS_TYPE_MATRIX_2X2 + 1);
+
+        if (head->type >= Element::RS_TYPE_ELEMENT && head->type <= Element::RS_TYPE_FONT)
+            printable_head_type_index = static_cast<Element::DataType>(
+                                        (head->type - Element::RS_TYPE_ELEMENT) + Element::RS_TYPE_MATRIX_2X2 + 1);
+
+        const char* file_type_cstr = AllocationDetails::RsDataTypeToString[printable_head_type_index][0];
+        const char* target_type_cstr = AllocationDetails::RsDataTypeToString[printable_target_type_index][0];
+
+        strm.Printf("Warning: Mismatched Types - file '%s' type, allocation '%s' type",
+                    file_type_cstr, target_type_cstr);
+        strm.EOL();
+    }
+
+    // Calculate size of allocation data in file
+    size_t length = data_sp->GetByteSize() - head->hdr_size;
+
+    // Check if the target allocation and file both have the same total data size.
+    const unsigned int alloc_size = *alloc->size.get();
+    if (alloc_size != length)
+    {
+        strm.Printf("Warning: Mismatched allocation sizes - file 0x%" PRIx64 " bytes, allocation 0x%x bytes",
+                    (uint64_t) length, alloc_size);
+        strm.EOL();
+        length = alloc_size < length ? alloc_size : length; // Set length to copy to minimum
+    }
+
+    // Copy file data from our buffer into the target allocation.
+    lldb::addr_t alloc_data = *alloc->data_ptr.get();
+    Error error;
+    size_t bytes_written = GetProcess()->WriteMemory(alloc_data, file_buffer, length, error);
+    if (!error.Success() || bytes_written != length)
+    {
+        strm.Printf("Error: Couldn't write data to allocation %s", error.AsCString());
+        strm.EOL();
+        return false;
+    }
+
+    strm.Printf("Contents of file '%s' read into allocation %u", filename, alloc->id);
+    strm.EOL();
+
+    return true;
+}
+
+// Function copies allocation contents into a binary file.
+// This file can then be loaded later into a different allocation.
+// There is a header, FileHeader, before the allocation data containing meta-data.
+bool
+RenderScriptRuntime::SaveAllocation(Stream &strm, const uint32_t alloc_id, const char* filename, StackFrame* frame_ptr)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+
+    // Find allocation with the given id
+    AllocationDetails* alloc = FindAllocByID(strm, alloc_id);
+    if (!alloc)
+        return false;
+
+    if (log)
+        log->Printf("RenderScriptRuntime::SaveAllocation - Found allocation 0x%" PRIx64, *alloc->address.get());
+
+     // JIT all the allocation details
+    if (alloc->shouldRefresh())
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::SaveAllocation - Allocation details not calculated yet, jitting info");
+
+        if (!RefreshAllocation(alloc, frame_ptr))
+        {
+            if (log)
+                log->Printf("RenderScriptRuntime::SaveAllocation - Couldn't JIT allocation details");
+            return false;
+        }
+    }
+
+    assert(alloc->data_ptr.isValid() && alloc->element.type.isValid() && alloc->element.type_vec_size.isValid() && alloc->element.datum_size.get()
+           && alloc->element.type_kind.isValid() && alloc->dimension.isValid() && "Allocation information not available");
+
+    // Check we can create writable file
+    FileSpec file_spec(filename, true);
+    File file(file_spec, File::eOpenOptionWrite | File::eOpenOptionCanCreate | File::eOpenOptionTruncate);
+    if (!file)
+    {
+        strm.Printf("Error: Failed to open '%s' for writing", filename);
+        strm.EOL();
+        return false;
+    }
+
+    // Read allocation into buffer of heap memory
+    const std::shared_ptr<uint8_t> buffer = GetAllocationData(alloc, frame_ptr);
+    if (!buffer)
+    {
+        strm.Printf("Error: Couldn't read allocation data into buffer");
+        strm.EOL();
+        return false;
+    }
+
+    // Create the file header
+    AllocationDetails::FileHeader head;
+    head.ident[0] = 'R'; head.ident[1] = 'S'; head.ident[2] = 'A'; head.ident[3] = 'D';
+    head.hdr_size = static_cast<uint16_t>(sizeof(AllocationDetails::FileHeader));
+    head.type = static_cast<uint16_t>(*alloc->element.type.get());
+    head.kind = static_cast<uint32_t>(*alloc->element.type_kind.get());
+    head.dims[0] = static_cast<uint32_t>(alloc->dimension.get()->dim_1);
+    head.dims[1] = static_cast<uint32_t>(alloc->dimension.get()->dim_2);
+    head.dims[2] = static_cast<uint32_t>(alloc->dimension.get()->dim_3);
+    head.element_size = static_cast<uint32_t>(*alloc->element.datum_size.get());
+
+    // Write the file header
+    size_t num_bytes = sizeof(AllocationDetails::FileHeader);
+    Error err = file.Write(static_cast<const void*>(&head), num_bytes);
+    if (!err.Success())
+    {
+        strm.Printf("Error: '%s' when writing to file '%s'", err.AsCString(), filename);
+        strm.EOL();
+        return false;
+    }
+
+    // Write allocation data to file
+    num_bytes = static_cast<size_t>(*alloc->size.get());
+    if (log)
+        log->Printf("RenderScriptRuntime::SaveAllocation - Writing 0x%" PRIx64 " bytes from %p", (uint64_t) num_bytes, buffer.get());
+
+    err = file.Write(buffer.get(), num_bytes);
+    if (!err.Success())
+    {
+        strm.Printf("Error: '%s' when writing to file '%s'", err.AsCString(), filename);
+        strm.EOL();
+        return false;
+    }
+
+    strm.Printf("Allocation written to file '%s'", filename);
+    strm.EOL();
+    return true;
 }
 
 bool
@@ -496,7 +2256,14 @@ RenderScriptRuntime::LoadModule(const lldb::ModuleSP &module_sp)
         for (const auto &rs_module : m_rsmodules)
         {
             if (rs_module->m_module == module_sp)
+            {
+                // Check if the user has enabled automatically breaking on
+                // all RS kernels.
+                if (m_breakAllKernels)
+                    BreakOnModuleKernels(rs_module);
+
                 return false;
+            }
         }
         bool module_loaded = false;
         switch (GetModuleKind(module_sp))
@@ -585,7 +2352,6 @@ RenderScriptRuntime::Update()
     }
 }
 
-
 // The maximum line length of an .rs.info packet
 #define MAXLINE 500
 
@@ -609,12 +2375,12 @@ RSModuleDescriptor::ParseRSInfo()
         std::string info((const char *)buffer->GetBytes());
 
         std::vector<std::string> info_lines;
-        size_t lpos = info.find_first_of("\n");
+        size_t lpos = info.find('\n');
         while (lpos != std::string::npos)
         {
             info_lines.push_back(info.substr(0, lpos));
             info = info.substr(lpos + 1);
-            lpos = info.find_first_of("\n");
+            lpos = info.find('\n');
         }
         size_t offset = 0;
         while (offset < info_lines.size())
@@ -710,7 +2476,6 @@ RenderScriptRuntime::Status(Stream &strm) const
             strm.Indent(b.second->defn->name);
             strm.EOL();
         }
-        strm.EOL();
     } 
     else
     {
@@ -728,15 +2493,21 @@ RenderScriptRuntime::DumpContexts(Stream &strm) const
 
     std::map<addr_t, uint64_t> contextReferences;
 
-    for (const auto &script : m_scripts)
+    // Iterate over all of the currently discovered scripts.
+    // Note: We cant push or pop from m_scripts inside this loop or it may invalidate script.
+    for (const auto & script : m_scripts)
     {
-        if (contextReferences.find(script.context) != contextReferences.end())
+        if (!script->context.isValid())
+            continue;
+        lldb::addr_t context = *script->context;
+
+        if (contextReferences.find(context) != contextReferences.end())
         {
-            contextReferences[script.context]++;
+            contextReferences[context]++;
         }
         else
         {
-            contextReferences[script.context] = 1;
+            contextReferences[context] = 1;
         }
     }
 
@@ -767,69 +2538,502 @@ RenderScriptRuntime::DumpKernels(Stream &strm) const
     strm.IndentLess();
 }
 
-void 
-RenderScriptRuntime::AttemptBreakpointAtKernelName(Stream &strm, const char* name, Error& error)
+RenderScriptRuntime::AllocationDetails*
+RenderScriptRuntime::FindAllocByID(Stream &strm, const uint32_t alloc_id)
 {
-    if (!name) 
+    AllocationDetails* alloc = nullptr;
+
+    // See if we can find allocation using id as an index;
+    if (alloc_id <= m_allocations.size() && alloc_id != 0
+        && m_allocations[alloc_id-1]->id == alloc_id)
     {
-        error.SetErrorString("invalid kernel name");
-        return;
+        alloc = m_allocations[alloc_id-1].get();
+        return alloc;
     }
 
-    bool kernels_found;
-    ConstString kernel_name(name);
-    for (const auto &module : m_rsmodules)
+    // Fallback to searching
+    for (const auto & a : m_allocations)
     {
-        for (const auto &kernel : module->m_kernels)
+       if (a->id == alloc_id)
+       {
+           alloc = a.get();
+           break;
+       }
+    }
+
+    if (alloc == nullptr)
+    {
+        strm.Printf("Error: Couldn't find allocation with id matching %u", alloc_id);
+        strm.EOL();
+    }
+
+    return alloc;
+}
+
+// Prints the contents of an allocation to the output stream, which may be a file
+bool
+RenderScriptRuntime::DumpAllocation(Stream &strm, StackFrame* frame_ptr, const uint32_t id)
+{
+    Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+
+    // Check we can find the desired allocation
+    AllocationDetails* alloc = FindAllocByID(strm, id);
+    if (!alloc)
+        return false; // FindAllocByID() will print error message for us here
+
+    if (log)
+        log->Printf("RenderScriptRuntime::DumpAllocation - Found allocation 0x%" PRIx64, *alloc->address.get());
+
+    // Check we have information about the allocation, if not calculate it
+    if (alloc->shouldRefresh())
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::DumpAllocation - Allocation details not calculated yet, jitting info");
+
+        // JIT all the allocation information
+        if (!RefreshAllocation(alloc, frame_ptr))
         {
-            if (kernel.m_name == kernel_name)
-            {
-                //Attempt to set a breakpoint on this symbol, within the module library
-                //If it's not found, it's likely debug info is unavailable - set a
-                //breakpoint on <name>.expand and emit a warning.
+            strm.Printf("Error: Couldn't JIT allocation details");
+            strm.EOL();
+            return false;
+        }
+    }
+
+    // Establish format and size of each data element
+    const unsigned int vec_size = *alloc->element.type_vec_size.get();
+    const Element::DataType type = *alloc->element.type.get();
+
+    assert(type >= Element::RS_TYPE_NONE && type <= Element::RS_TYPE_FONT
+                                                   && "Invalid allocation type");
+
+    lldb::Format format;
+    if (type >= Element::RS_TYPE_ELEMENT)
+        format = eFormatHex;
+    else
+        format = vec_size == 1 ? static_cast<lldb::Format>(AllocationDetails::RSTypeToFormat[type][eFormatSingle])
+                               : static_cast<lldb::Format>(AllocationDetails::RSTypeToFormat[type][eFormatVector]);
+
+    const unsigned int data_size = *alloc->element.datum_size.get();
+
+    if (log)
+        log->Printf("RenderScriptRuntime::DumpAllocation - Element size %u bytes, including padding", data_size);
+
+    // Allocate a buffer to copy data into
+    std::shared_ptr<uint8_t> buffer = GetAllocationData(alloc, frame_ptr);
+    if (!buffer)
+    {
+        strm.Printf("Error: Couldn't read allocation data");
+        strm.EOL();
+        return false;
+    }
+
+    // Calculate stride between rows as there may be padding at end of rows since
+    // allocated memory is 16-byte aligned
+    if (!alloc->stride.isValid())
+    {
+        if (alloc->dimension.get()->dim_2 == 0) // We only have one dimension
+            alloc->stride = 0;
+        else if (!JITAllocationStride(alloc, frame_ptr))
+        {
+            strm.Printf("Error: Couldn't calculate allocation row stride");
+            strm.EOL();
+            return false;
+        }
+    }
+    const unsigned int stride = *alloc->stride.get();
+    const unsigned int size = *alloc->size.get(); // Size of whole allocation
+    const unsigned int padding = alloc->element.padding.isValid() ? *alloc->element.padding.get() : 0;
+    if (log)
+        log->Printf("RenderScriptRuntime::DumpAllocation - stride %u bytes, size %u bytes, padding %u", stride, size, padding);
+
+    // Find dimensions used to index loops, so need to be non-zero
+    unsigned int dim_x = alloc->dimension.get()->dim_1;
+    dim_x = dim_x == 0 ? 1 : dim_x;
 
-                const Symbol* kernel_sym = module->m_module->FindFirstSymbolWithNameAndType(kernel_name, eSymbolTypeCode);
+    unsigned int dim_y = alloc->dimension.get()->dim_2;
+    dim_y = dim_y == 0 ? 1 : dim_y;
 
-                if (!kernel_sym)
+    unsigned int dim_z = alloc->dimension.get()->dim_3;
+    dim_z = dim_z == 0 ? 1 : dim_z;
+
+    // Use data extractor to format output
+    const uint32_t archByteSize = GetProcess()->GetTarget().GetArchitecture().GetAddressByteSize();
+    DataExtractor alloc_data(buffer.get(), size, GetProcess()->GetByteOrder(), archByteSize);
+
+    unsigned int offset = 0;   // Offset in buffer to next element to be printed
+    unsigned int prev_row = 0; // Offset to the start of the previous row
+
+    // Iterate over allocation dimensions, printing results to user
+    strm.Printf("Data (X, Y, Z):");
+    for (unsigned int z = 0; z < dim_z; ++z)
+    {
+        for (unsigned int y = 0; y < dim_y; ++y)
+        {
+            // Use stride to index start of next row.
+            if (!(y==0 && z==0))
+                offset = prev_row + stride;
+            prev_row = offset;
+
+            // Print each element in the row individually
+            for (unsigned int x = 0; x < dim_x; ++x)
+            {
+                strm.Printf("\n(%u, %u, %u) = ", x, y, z);
+                if ((type == Element::RS_TYPE_NONE) && (alloc->element.children.size() > 0) &&
+                    (alloc->element.type_name != Element::GetFallbackStructName()))
                 {
-                    std::string kernel_name_expanded(name);
-                    kernel_name_expanded.append(".expand");
-                    kernel_sym = module->m_module->FindFirstSymbolWithNameAndType(ConstString(kernel_name_expanded.c_str()), eSymbolTypeCode);
+                    // Here we are dumping an Element of struct type.
+                    // This is done using expression evaluation with the name of the struct type and pointer to element.
 
-                    if (kernel_sym)
-                    {
-                        strm.Printf("Kernel '%s' could not be found, but expansion exists. ", name); 
-                        strm.Printf("Breakpoint placed on expanded kernel. Have you compiled in debug mode?");
-                        strm.EOL();
-                    }
-                    else
+                    // Don't print the name of the resulting expression, since this will be '$[0-9]+'
+                    DumpValueObjectOptions expr_options;
+                    expr_options.SetHideName(true);
+
+                    // Setup expression as derefrencing a pointer cast to element address.
+                    char expr_char_buffer[jit_max_expr_size];
+                    int chars_written = snprintf(expr_char_buffer, jit_max_expr_size, "*(%s*) 0x%" PRIx64,
+                                        alloc->element.type_name.AsCString(), *alloc->data_ptr.get() + offset);
+
+                    if (chars_written < 0 || chars_written >= jit_max_expr_size)
                     {
-                        error.SetErrorStringWithFormat("Could not locate symbols for loaded kernel '%s'.", name);
-                        return;
+                        if (log)
+                            log->Printf("RenderScriptRuntime::DumpAllocation- Error in snprintf()");
+                        continue;
                     }
-                }
 
-                addr_t bp_addr = kernel_sym->GetLoadAddress(&GetProcess()->GetTarget());
-                if (bp_addr == LLDB_INVALID_ADDRESS)
+                    // Evaluate expression
+                    ValueObjectSP expr_result;
+                    GetProcess()->GetTarget().EvaluateExpression(expr_char_buffer, frame_ptr, expr_result);
+
+                    // Print the results to our stream.
+                    expr_result->Dump(strm, expr_options);
+                }
+                else
                 {
-                    error.SetErrorStringWithFormat("Could not locate load address for symbols of kernel '%s'.", name);
-                    return;
+                    alloc_data.Dump(&strm, offset, format, data_size - padding, 1, 1, LLDB_INVALID_ADDRESS, 0, 0);
                 }
+                offset += data_size;
+            }
+        }
+    }
+    strm.EOL();
+
+    return true;
+}
+
+// Prints infomation regarding all the currently loaded allocations.
+// These details are gathered by jitting the runtime, which has as latency.
+void
+RenderScriptRuntime::ListAllocations(Stream &strm, StackFrame* frame_ptr, bool recompute)
+{
+    strm.Printf("RenderScript Allocations:");
+    strm.EOL();
+    strm.IndentMore();
+
+    for (auto &alloc : m_allocations)
+    {
+        // JIT the allocation info if we haven't done it, or the user forces us to.
+        bool do_refresh = alloc->shouldRefresh() || recompute;
+
+        // JIT current allocation information
+        if (do_refresh && !RefreshAllocation(alloc.get(), frame_ptr))
+        {
+            strm.Printf("Error: Couldn't evaluate details for allocation %u\n", alloc->id);
+            continue;
+        }
 
-                BreakpointSP bp = GetProcess()->GetTarget().CreateBreakpoint(bp_addr, false, false);
-                strm.Printf("Breakpoint %" PRIu64 ": kernel '%s' within script '%s'", (uint64_t)bp->GetID(), name, module->m_resname.c_str());
-                strm.EOL();
+        strm.Printf("%u:\n",alloc->id);
+        strm.IndentMore();
 
-                kernels_found = true;
+        strm.Indent("Context: ");
+        if (!alloc->context.isValid())
+            strm.Printf("unknown\n");
+        else
+            strm.Printf("0x%" PRIx64 "\n", *alloc->context.get());
+
+        strm.Indent("Address: ");
+        if (!alloc->address.isValid())
+            strm.Printf("unknown\n");
+        else
+            strm.Printf("0x%" PRIx64 "\n", *alloc->address.get());
+
+        strm.Indent("Data pointer: ");
+        if (!alloc->data_ptr.isValid())
+            strm.Printf("unknown\n");
+        else
+            strm.Printf("0x%" PRIx64 "\n", *alloc->data_ptr.get());
+
+        strm.Indent("Dimensions: ");
+        if (!alloc->dimension.isValid())
+            strm.Printf("unknown\n");
+        else
+            strm.Printf("(%d, %d, %d)\n", alloc->dimension.get()->dim_1,
+                                          alloc->dimension.get()->dim_2,
+                                          alloc->dimension.get()->dim_3);
+
+        strm.Indent("Data Type: ");
+        if (!alloc->element.type.isValid() || !alloc->element.type_vec_size.isValid())
+            strm.Printf("unknown\n");
+        else
+        {
+            const int vector_size = *alloc->element.type_vec_size.get();
+            Element::DataType type = *alloc->element.type.get();
+
+            if (!alloc->element.type_name.IsEmpty())
+                strm.Printf("%s\n", alloc->element.type_name.AsCString());
+            else
+            {
+                // Enum value isn't monotonous, so doesn't always index RsDataTypeToString array
+                if (type >= Element::RS_TYPE_ELEMENT && type <= Element::RS_TYPE_FONT)
+                    type = static_cast<Element::DataType>((type - Element::RS_TYPE_ELEMENT) +  Element::RS_TYPE_MATRIX_2X2 + 1);
+
+                if (type >= (sizeof(AllocationDetails::RsDataTypeToString) / sizeof(AllocationDetails::RsDataTypeToString[0]))
+                    || vector_size > 4 || vector_size < 1)
+                    strm.Printf("invalid type\n");
+                else
+                    strm.Printf("%s\n", AllocationDetails::RsDataTypeToString[static_cast<unsigned int>(type)][vector_size-1]);
             }
         }
+
+        strm.Indent("Data Kind: ");
+        if (!alloc->element.type_kind.isValid())
+            strm.Printf("unknown\n");
+        else
+        {
+            const Element::DataKind kind = *alloc->element.type_kind.get();
+            if (kind < Element::RS_KIND_USER || kind > Element::RS_KIND_PIXEL_YUV)
+                strm.Printf("invalid kind\n");
+            else
+                strm.Printf("%s\n", AllocationDetails::RsDataKindToString[static_cast<unsigned int>(kind)]);
+        }
+
+        strm.EOL();
+        strm.IndentLess();
     }
+    strm.IndentLess();
+}
 
-    if (!kernels_found)
+// Set breakpoints on every kernel found in RS module
+void
+RenderScriptRuntime::BreakOnModuleKernels(const RSModuleDescriptorSP rsmodule_sp)
+{
+    for (const auto &kernel : rsmodule_sp->m_kernels)
     {
-        error.SetErrorString("kernel name not found");
+        // Don't set breakpoint on 'root' kernel
+        if (strcmp(kernel.m_name.AsCString(), "root") == 0)
+            continue;
+
+        CreateKernelBreakpoint(kernel.m_name);
     }
-    return;
+}
+
+// Method is internally called by the 'kernel breakpoint all' command to
+// enable or disable breaking on all kernels.
+//
+// When do_break is true we want to enable this functionality.
+// When do_break is false we want to disable it.
+void
+RenderScriptRuntime::SetBreakAllKernels(bool do_break, TargetSP target)
+{
+    Log* log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_LANGUAGE | LIBLLDB_LOG_BREAKPOINTS));
+
+    InitSearchFilter(target);
+
+    // Set breakpoints on all the kernels
+    if (do_break && !m_breakAllKernels)
+    {
+        m_breakAllKernels = true;
+
+        for (const auto &module : m_rsmodules)
+            BreakOnModuleKernels(module);
+
+        if (log)
+            log->Printf("RenderScriptRuntime::SetBreakAllKernels(True)"
+                        "- breakpoints set on all currently loaded kernels");
+    }
+    else if (!do_break && m_breakAllKernels) // Breakpoints won't be set on any new kernels.
+    {
+        m_breakAllKernels = false;
+
+        if (log)
+            log->Printf("RenderScriptRuntime::SetBreakAllKernels(False) - breakpoints no longer automatically set");
+    }
+}
+
+// Given the name of a kernel this function creates a breakpoint using our
+// own breakpoint resolver, and returns the Breakpoint shared pointer.
+BreakpointSP
+RenderScriptRuntime::CreateKernelBreakpoint(const ConstString& name)
+{
+    Log* log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_LANGUAGE | LIBLLDB_LOG_BREAKPOINTS));
+
+    if (!m_filtersp)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::CreateKernelBreakpoint - Error: No breakpoint search filter set");
+        return nullptr;
+    }
+
+    BreakpointResolverSP resolver_sp(new RSBreakpointResolver(nullptr, name));
+    BreakpointSP bp = GetProcess()->GetTarget().CreateBreakpoint(m_filtersp, resolver_sp, false, false, false);
+
+    // Give RS breakpoints a specific name, so the user can manipulate them as a group.
+    Error err;
+    if (!bp->AddName("RenderScriptKernel", err) && log)
+        log->Printf("RenderScriptRuntime::CreateKernelBreakpoint: Error setting break name, %s", err.AsCString());
+
+    return bp;
+}
+
+// Given an expression for a variable this function tries to calculate the variable's value.
+// If this is possible it returns true and sets the uint64_t parameter to the variables unsigned value.
+// Otherwise function returns false.
+bool
+RenderScriptRuntime::GetFrameVarAsUnsigned(const StackFrameSP frame_sp, const char* var_name, uint64_t& val)
+{
+    Log* log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_LANGUAGE));
+    Error error;
+    VariableSP var_sp;
+
+    // Find variable in stack frame
+    ValueObjectSP value_sp(frame_sp->GetValueForVariableExpressionPath(var_name,
+                                                                       eNoDynamicValues,
+                                                                       StackFrame::eExpressionPathOptionCheckPtrVsMember |
+                                                                       StackFrame::eExpressionPathOptionsAllowDirectIVarAccess,
+                                                                       var_sp,
+                                                                       error));
+    if (!error.Success())
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::GetFrameVarAsUnsigned - Error, couldn't find '%s' in frame", var_name);
+
+        return false;
+    }
+
+    // Find the unsigned int value for the variable
+    bool success = false;
+    val = value_sp->GetValueAsUnsigned(0, &success);
+    if (!success)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::GetFrameVarAsUnsigned - Error, couldn't parse '%s' as an unsigned int", var_name);
+
+        return false;
+    }
+
+    return true;
+}
+
+// Callback when a kernel breakpoint hits and we're looking for a specific coordinate.
+// Baton parameter contains a pointer to the target coordinate we want to break on.
+// Function then checks the .expand frame for the current coordinate and breaks to user if it matches.
+// Parameter 'break_id' is the id of the Breakpoint which made the callback.
+// Parameter 'break_loc_id' is the id for the BreakpointLocation which was hit,
+// a single logical breakpoint can have multiple addresses.
+bool
+RenderScriptRuntime::KernelBreakpointHit(void *baton, StoppointCallbackContext *ctx,
+                                         user_id_t break_id, user_id_t break_loc_id)
+{
+    Log* log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_LANGUAGE | LIBLLDB_LOG_BREAKPOINTS));
+
+    assert(baton && "Error: null baton in conditional kernel breakpoint callback");
+
+    // Coordinate we want to stop on
+    const int* target_coord = static_cast<const int*>(baton);
+
+    if (log)
+        log->Printf("RenderScriptRuntime::KernelBreakpointHit - Break ID %" PRIu64 ", target coord (%d, %d, %d)",
+                    break_id, target_coord[0], target_coord[1], target_coord[2]);
+
+    // Go up one stack frame to .expand kernel
+    ExecutionContext context(ctx->exe_ctx_ref);
+    ThreadSP thread_sp = context.GetThreadSP();
+    if (!thread_sp->SetSelectedFrameByIndex(1))
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::KernelBreakpointHit - Error, couldn't go up stack frame");
+
+       return false;
+    }
+
+    StackFrameSP frame_sp = thread_sp->GetSelectedFrame();
+    if (!frame_sp)
+    {
+        if (log)
+            log->Printf("RenderScriptRuntime::KernelBreakpointHit - Error, couldn't select .expand stack frame");
+
+        return false;
+    }
+
+    // Get values for variables in .expand frame that tell us the current kernel invocation
+    const char* coord_expressions[] = {"rsIndex", "p->current.y", "p->current.z"};
+    uint64_t current_coord[3] = {0, 0, 0};
+
+    for(int i = 0; i < 3; ++i)
+    {
+        if (!GetFrameVarAsUnsigned(frame_sp, coord_expressions[i], current_coord[i]))
+            return false;
+
+        if (log)
+            log->Printf("RenderScriptRuntime::KernelBreakpointHit, %s = %" PRIu64, coord_expressions[i], current_coord[i]);
+    }
+
+    // Check if the current kernel invocation coordinate matches our target coordinate
+    if (current_coord[0] == static_cast<uint64_t>(target_coord[0]) &&
+        current_coord[1] == static_cast<uint64_t>(target_coord[1]) &&
+        current_coord[2] == static_cast<uint64_t>(target_coord[2]))
+    {
+        if (log)
+             log->Printf("RenderScriptRuntime::KernelBreakpointHit, BREAKING %" PRIu64 ", %" PRIu64 ", %" PRIu64,
+                         current_coord[0], current_coord[1], current_coord[2]);
+
+        BreakpointSP breakpoint_sp = context.GetTargetPtr()->GetBreakpointByID(break_id);
+        assert(breakpoint_sp != nullptr && "Error: Couldn't find breakpoint matching break id for callback");
+        breakpoint_sp->SetEnabled(false); // Optimise since conditional breakpoint should only be hit once.
+        return true;
+    }
+
+    // No match on coordinate
+    return false;
+}
+
+// Tries to set a breakpoint on the start of a kernel, resolved using the kernel name.
+// Argument 'coords', represents a three dimensional coordinate which can be used to specify
+// a single kernel instance to break on. If this is set then we add a callback to the breakpoint.
+void
+RenderScriptRuntime::PlaceBreakpointOnKernel(Stream &strm, const char* name, const std::array<int,3> coords,
+                                             Error& error, TargetSP target)
+{
+    if (!name)
+    {
+        error.SetErrorString("invalid kernel name");
+        return;
+    }
+
+    InitSearchFilter(target);
+
+    ConstString kernel_name(name);
+    BreakpointSP bp = CreateKernelBreakpoint(kernel_name);
+
+    // We have a conditional breakpoint on a specific coordinate
+    if (coords[0] != -1)
+    {
+        strm.Printf("Conditional kernel breakpoint on coordinate %d, %d, %d", coords[0], coords[1], coords[2]);
+        strm.EOL();
+
+        // Allocate memory for the baton, and copy over coordinate
+        int* baton = new int[3];
+        baton[0] = coords[0]; baton[1] = coords[1]; baton[2] = coords[2];
+
+        // Create a callback that will be invoked everytime the breakpoint is hit.
+        // The baton object passed to the handler is the target coordinate we want to break on.
+        bp->SetCallback(KernelBreakpointHit, baton, true);
+
+        // Store a shared pointer to the baton, so the memory will eventually be cleaned up after destruction
+        m_conditional_breaks[bp->GetID()] = std::shared_ptr<int>(baton);
+    }
+
+    if (bp)
+        bp->GetDescription(&strm, lldb::eDescriptionLevelInitial, false);
 }
 
 void
@@ -845,12 +3049,49 @@ RenderScriptRuntime::DumpModules(Stream &strm) const
     strm.IndentLess();
 }
 
+RenderScriptRuntime::ScriptDetails*
+RenderScriptRuntime::LookUpScript(addr_t address, bool create)
+{
+    for (const auto & s : m_scripts)
+    {
+        if (s->script.isValid())
+            if (*s->script == address)
+                return s.get();
+    }
+    if (create)
+    {
+        std::unique_ptr<ScriptDetails> s(new ScriptDetails);
+        s->script = address;
+        m_scripts.push_back(std::move(s));
+        return m_scripts.back().get();
+    }
+    return nullptr;
+}
+
+RenderScriptRuntime::AllocationDetails*
+RenderScriptRuntime::LookUpAllocation(addr_t address, bool create)
+{
+    for (const auto & a : m_allocations)
+    {
+        if (a->address.isValid())
+            if (*a->address == address)
+                return a.get();
+    }
+    if (create)
+    {
+        std::unique_ptr<AllocationDetails> a(new AllocationDetails);
+        a->address = address;
+        m_allocations.push_back(std::move(a));
+        return m_allocations.back().get();
+    }
+    return nullptr;
+}
+
 void
 RSModuleDescriptor::Dump(Stream &strm) const
 {
     strm.Indent();
     m_module->GetFileSpec().Dump(&strm);
-    m_module->ParseAllDebugSymbols();
     if(m_module->GetNumCompileUnits())
     {
         strm.Indent("Debug info loaded.");
@@ -931,8 +3172,7 @@ RSKernelDescriptor::Dump(Stream &strm) const
 
 class CommandObjectRenderScriptRuntimeModuleProbe : public CommandObjectParsed
 {
-  private:
-  public:
+public:
     CommandObjectRenderScriptRuntimeModuleProbe(CommandInterpreter &interpreter)
         : CommandObjectParsed(interpreter, "renderscript module probe",
                               "Initiates a Probe of all loaded modules for kernels and other renderscript objects.",
@@ -941,10 +3181,10 @@ class CommandObjectRenderScriptRuntimeModuleProbe : public CommandObjectParsed
     {
     }
 
-    ~CommandObjectRenderScriptRuntimeModuleProbe() {}
+    ~CommandObjectRenderScriptRuntimeModuleProbe() override = default;
 
     bool
-    DoExecute(Args &command, CommandReturnObject &result)
+    DoExecute(Args &command, CommandReturnObject &result) override
     {
         const size_t argc = command.GetArgumentCount();
         if (argc == 0)
@@ -970,8 +3210,7 @@ class CommandObjectRenderScriptRuntimeModuleProbe : public CommandObjectParsed
 
 class CommandObjectRenderScriptRuntimeModuleDump : public CommandObjectParsed
 {
-  private:
-  public:
+public:
     CommandObjectRenderScriptRuntimeModuleDump(CommandInterpreter &interpreter)
         : CommandObjectParsed(interpreter, "renderscript module dump",
                               "Dumps renderscript specific information for all modules.", "renderscript module dump",
@@ -979,10 +3218,10 @@ class CommandObjectRenderScriptRuntimeModuleDump : public CommandObjectParsed
     {
     }
 
-    ~CommandObjectRenderScriptRuntimeModuleDump() {}
+    ~CommandObjectRenderScriptRuntimeModuleDump() override = default;
 
     bool
-    DoExecute(Args &command, CommandReturnObject &result)
+    DoExecute(Args &command, CommandReturnObject &result) override
     {
         RenderScriptRuntime *runtime =
             (RenderScriptRuntime *)m_exe_ctx.GetProcessPtr()->GetLanguageRuntime(eLanguageTypeExtRenderScript);
@@ -994,8 +3233,7 @@ class CommandObjectRenderScriptRuntimeModuleDump : public CommandObjectParsed
 
 class CommandObjectRenderScriptRuntimeModule : public CommandObjectMultiword
 {
-  private:
-  public:
+public:
     CommandObjectRenderScriptRuntimeModule(CommandInterpreter &interpreter)
         : CommandObjectMultiword(interpreter, "renderscript module", "Commands that deal with renderscript modules.",
                                  NULL)
@@ -1004,13 +3242,12 @@ class CommandObjectRenderScriptRuntimeModule : public CommandObjectMultiword
         LoadSubCommand("dump", CommandObjectSP(new CommandObjectRenderScriptRuntimeModuleDump(interpreter)));
     }
 
-    ~CommandObjectRenderScriptRuntimeModule() {}
+    ~CommandObjectRenderScriptRuntimeModule() override = default;
 };
 
 class CommandObjectRenderScriptRuntimeKernelList : public CommandObjectParsed
 {
-  private:
-  public:
+public:
     CommandObjectRenderScriptRuntimeKernelList(CommandInterpreter &interpreter)
         : CommandObjectParsed(interpreter, "renderscript kernel list",
                               "Lists renderscript kernel names and associated script resources.", "renderscript kernel list",
@@ -1018,10 +3255,10 @@ class CommandObjectRenderScriptRuntimeKernelList : public CommandObjectParsed
     {
     }
 
-    ~CommandObjectRenderScriptRuntimeKernelList() {}
+    ~CommandObjectRenderScriptRuntimeKernelList() override = default;
 
     bool
-    DoExecute(Args &command, CommandReturnObject &result)
+    DoExecute(Args &command, CommandReturnObject &result) override
     {
         RenderScriptRuntime *runtime =
             (RenderScriptRuntime *)m_exe_ctx.GetProcessPtr()->GetLanguageRuntime(eLanguageTypeExtRenderScript);
@@ -1031,52 +3268,213 @@ class CommandObjectRenderScriptRuntimeKernelList : public CommandObjectParsed
     }
 };
 
-class CommandObjectRenderScriptRuntimeKernelBreakpoint : public CommandObjectParsed
+class CommandObjectRenderScriptRuntimeKernelBreakpointSet : public CommandObjectParsed
 {
-  private:
-  public:
-    CommandObjectRenderScriptRuntimeKernelBreakpoint(CommandInterpreter &interpreter)
-        : CommandObjectParsed(interpreter, "renderscript kernel breakpoint",
-                              "Sets a breakpoint on a renderscript kernel.", "renderscript kernel breakpoint",
-                              eCommandRequiresProcess | eCommandProcessMustBeLaunched | eCommandProcessMustBePaused)
+public:
+    CommandObjectRenderScriptRuntimeKernelBreakpointSet(CommandInterpreter &interpreter)
+        : CommandObjectParsed(interpreter, "renderscript kernel breakpoint set",
+                              "Sets a breakpoint on a renderscript kernel.", "renderscript kernel breakpoint set <kernel_name> [-c x,y,z]",
+                              eCommandRequiresProcess | eCommandProcessMustBeLaunched | eCommandProcessMustBePaused), m_options(interpreter)
     {
     }
 
-    ~CommandObjectRenderScriptRuntimeKernelBreakpoint() {}
+    ~CommandObjectRenderScriptRuntimeKernelBreakpointSet() override = default;
 
-    bool
-    DoExecute(Args &command, CommandReturnObject &result)
+    Options*
+    GetOptions() override
     {
-        const size_t argc = command.GetArgumentCount();
-        if (argc == 1)
+        return &m_options;
+    }
+
+    class CommandOptions : public Options
+    {
+    public:
+        CommandOptions(CommandInterpreter &interpreter) : Options(interpreter)
         {
-            RenderScriptRuntime *runtime =
-                (RenderScriptRuntime *)m_exe_ctx.GetProcessPtr()->GetLanguageRuntime(eLanguageTypeExtRenderScript);
+        }
+
+        ~CommandOptions() override = default;
 
+        Error
+        SetOptionValue(uint32_t option_idx, const char *option_arg) override
+        {
             Error error;
-            runtime->AttemptBreakpointAtKernelName(result.GetOutputStream(), command.GetArgumentAtIndex(0), error);
+            const int short_option = m_getopt_table[option_idx].val;
 
-            if (error.Success())
+            switch (short_option)
             {
-                result.AppendMessage("Breakpoint(s) created");
-                result.SetStatus(eReturnStatusSuccessFinishResult);
-                return true;
+                case 'c':
+                    if (!ParseCoordinate(option_arg))
+                        error.SetErrorStringWithFormat("Couldn't parse coordinate '%s', should be in format 'x,y,z'.", option_arg);
+                    break;
+                default:
+                    error.SetErrorStringWithFormat("unrecognized option '%c'", short_option);
+                    break;
             }
+            return error;
+        }
+
+        // -c takes an argument of the form 'num[,num][,num]'.
+        // Where 'id_cstr' is this argument with the whitespace trimmed.
+        // Missing coordinates are defaulted to zero.
+        bool
+        ParseCoordinate(const char* id_cstr)
+        {
+            RegularExpression regex;
+            RegularExpression::Match regex_match(3);
+
+            bool matched = false;
+            if(regex.Compile("^([0-9]+),([0-9]+),([0-9]+)$") && regex.Execute(id_cstr, &regex_match))
+                matched = true;
+            else if(regex.Compile("^([0-9]+),([0-9]+)$") && regex.Execute(id_cstr, &regex_match))
+                matched = true;
+            else if(regex.Compile("^([0-9]+)$") && regex.Execute(id_cstr, &regex_match))
+                matched = true;
+            for(uint32_t i = 0; i < 3; i++)
+            {
+                std::string group;
+                if(regex_match.GetMatchAtIndex(id_cstr, i + 1, group))
+                    m_coord[i] = (uint32_t)strtoul(group.c_str(), NULL, 0);
+                else
+                    m_coord[i] = 0;
+            }
+            return matched;
+        }
+
+        void
+        OptionParsingStarting() override
+        {
+            // -1 means the -c option hasn't been set
+            m_coord[0] = -1;
+            m_coord[1] = -1;
+            m_coord[2] = -1;
+        }
+
+        const OptionDefinition*
+        GetDefinitions() override
+        {
+            return g_option_table;
+        }
+
+        static OptionDefinition g_option_table[];
+        std::array<int,3> m_coord;
+    };
+
+    bool
+    DoExecute(Args &command, CommandReturnObject &result) override
+    {
+        const size_t argc = command.GetArgumentCount();
+        if (argc < 1)
+        {
+            result.AppendErrorWithFormat("'%s' takes 1 argument of kernel name, and an optional coordinate.", m_cmd_name.c_str());
             result.SetStatus(eReturnStatusFailed);
-            result.AppendErrorWithFormat("Error: %s", error.AsCString());
             return false;
         }
 
-        result.AppendErrorWithFormat("'%s' takes 1 argument of kernel name", m_cmd_name.c_str());
+        RenderScriptRuntime *runtime =
+                (RenderScriptRuntime *)m_exe_ctx.GetProcessPtr()->GetLanguageRuntime(eLanguageTypeExtRenderScript);
+
+        Error error;
+        runtime->PlaceBreakpointOnKernel(result.GetOutputStream(), command.GetArgumentAtIndex(0), m_options.m_coord,
+                                         error, m_exe_ctx.GetTargetSP());
+
+        if (error.Success())
+        {
+            result.AppendMessage("Breakpoint(s) created");
+            result.SetStatus(eReturnStatusSuccessFinishResult);
+            return true;
+        }
         result.SetStatus(eReturnStatusFailed);
+        result.AppendErrorWithFormat("Error: %s", error.AsCString());
         return false;
     }
+
+private:
+    CommandOptions m_options;
+};
+
+OptionDefinition
+CommandObjectRenderScriptRuntimeKernelBreakpointSet::CommandOptions::g_option_table[] =
+{
+    { LLDB_OPT_SET_1, false, "coordinate", 'c', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeValue,
+      "Set a breakpoint on a single invocation of the kernel with specified coordinate.\n"
+      "Coordinate takes the form 'x[,y][,z] where x,y,z are positive integers representing kernel dimensions. "
+      "Any unset dimensions will be defaulted to zero."},
+    { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL }
+};
+
+class CommandObjectRenderScriptRuntimeKernelBreakpointAll : public CommandObjectParsed
+{
+public:
+    CommandObjectRenderScriptRuntimeKernelBreakpointAll(CommandInterpreter &interpreter)
+        : CommandObjectParsed(interpreter, "renderscript kernel breakpoint all",
+                              "Automatically sets a breakpoint on all renderscript kernels that are or will be loaded.\n"
+                              "Disabling option means breakpoints will no longer be set on any kernels loaded in the future, "
+                              "but does not remove currently set breakpoints.",
+                              "renderscript kernel breakpoint all <enable/disable>",
+                              eCommandRequiresProcess | eCommandProcessMustBeLaunched | eCommandProcessMustBePaused)
+    {
+    }
+
+    ~CommandObjectRenderScriptRuntimeKernelBreakpointAll() override = default;
+
+    bool
+    DoExecute(Args &command, CommandReturnObject &result) override
+    {
+        const size_t argc = command.GetArgumentCount();
+        if (argc != 1)
+        {
+            result.AppendErrorWithFormat("'%s' takes 1 argument of 'enable' or 'disable'", m_cmd_name.c_str());
+            result.SetStatus(eReturnStatusFailed);
+            return false;
+        }
+
+        RenderScriptRuntime *runtime =
+          static_cast<RenderScriptRuntime *>(m_exe_ctx.GetProcessPtr()->GetLanguageRuntime(eLanguageTypeExtRenderScript));
+
+        bool do_break = false;
+        const char* argument = command.GetArgumentAtIndex(0);
+        if (strcmp(argument, "enable") == 0)
+        {
+            do_break = true;
+            result.AppendMessage("Breakpoints will be set on all kernels.");
+        }
+        else if (strcmp(argument, "disable") == 0)
+        {
+            do_break = false;
+            result.AppendMessage("Breakpoints will not be set on any new kernels.");
+        }
+        else
+        {
+            result.AppendErrorWithFormat("Argument must be either 'enable' or 'disable'");
+            result.SetStatus(eReturnStatusFailed);
+            return false;
+        }
+
+        runtime->SetBreakAllKernels(do_break, m_exe_ctx.GetTargetSP());
+
+        result.SetStatus(eReturnStatusSuccessFinishResult);
+        return true;
+    }
+};
+
+class CommandObjectRenderScriptRuntimeKernelBreakpoint : public CommandObjectMultiword
+{
+public:
+    CommandObjectRenderScriptRuntimeKernelBreakpoint(CommandInterpreter &interpreter)
+        : CommandObjectMultiword(interpreter, "renderscript kernel", "Commands that generate breakpoints on renderscript kernels.",
+                                 nullptr)
+    {
+        LoadSubCommand("set", CommandObjectSP(new CommandObjectRenderScriptRuntimeKernelBreakpointSet(interpreter)));
+        LoadSubCommand("all", CommandObjectSP(new CommandObjectRenderScriptRuntimeKernelBreakpointAll(interpreter)));
+    }
+
+    ~CommandObjectRenderScriptRuntimeKernelBreakpoint() override = default;
 };
 
 class CommandObjectRenderScriptRuntimeKernel : public CommandObjectMultiword
 {
-  private:
-  public:
+public:
     CommandObjectRenderScriptRuntimeKernel(CommandInterpreter &interpreter)
         : CommandObjectMultiword(interpreter, "renderscript kernel", "Commands that deal with renderscript kernels.",
                                  NULL)
@@ -1085,13 +3483,12 @@ class CommandObjectRenderScriptRuntimeKernel : public CommandObjectMultiword
         LoadSubCommand("breakpoint", CommandObjectSP(new CommandObjectRenderScriptRuntimeKernelBreakpoint(interpreter)));
     }
 
-    ~CommandObjectRenderScriptRuntimeKernel() {}
+    ~CommandObjectRenderScriptRuntimeKernel() override = default;
 };
 
 class CommandObjectRenderScriptRuntimeContextDump : public CommandObjectParsed
 {
-  private:
-  public:
+public:
     CommandObjectRenderScriptRuntimeContextDump(CommandInterpreter &interpreter)
         : CommandObjectParsed(interpreter, "renderscript context dump",
                               "Dumps renderscript context information.", "renderscript context dump",
@@ -1099,10 +3496,10 @@ class CommandObjectRenderScriptRuntimeContextDump : public CommandObjectParsed
     {
     }
 
-    ~CommandObjectRenderScriptRuntimeContextDump() {}
+    ~CommandObjectRenderScriptRuntimeContextDump() override = default;
 
     bool
-    DoExecute(Args &command, CommandReturnObject &result)
+    DoExecute(Args &command, CommandReturnObject &result) override
     {
         RenderScriptRuntime *runtime =
             (RenderScriptRuntime *)m_exe_ctx.GetProcessPtr()->GetLanguageRuntime(eLanguageTypeExtRenderScript);
@@ -1114,8 +3511,7 @@ class CommandObjectRenderScriptRuntimeContextDump : public CommandObjectParsed
 
 class CommandObjectRenderScriptRuntimeContext : public CommandObjectMultiword
 {
-  private:
-  public:
+public:
     CommandObjectRenderScriptRuntimeContext(CommandInterpreter &interpreter)
         : CommandObjectMultiword(interpreter, "renderscript context", "Commands that deal with renderscript contexts.",
                                  NULL)
@@ -1123,13 +3519,345 @@ class CommandObjectRenderScriptRuntimeContext : public CommandObjectMultiword
         LoadSubCommand("dump", CommandObjectSP(new CommandObjectRenderScriptRuntimeContextDump(interpreter)));
     }
 
-    ~CommandObjectRenderScriptRuntimeContext() {}
+    ~CommandObjectRenderScriptRuntimeContext() override = default;
+};
+
+class CommandObjectRenderScriptRuntimeAllocationDump : public CommandObjectParsed
+{
+public:
+    CommandObjectRenderScriptRuntimeAllocationDump(CommandInterpreter &interpreter)
+        : CommandObjectParsed(interpreter, "renderscript allocation dump",
+                              "Displays the contents of a particular allocation", "renderscript allocation dump <ID>",
+                              eCommandRequiresProcess | eCommandProcessMustBeLaunched), m_options(interpreter)
+    {
+    }
+
+    ~CommandObjectRenderScriptRuntimeAllocationDump() override = default;
+
+    Options*
+    GetOptions() override
+    {
+        return &m_options;
+    }
+
+    class CommandOptions : public Options
+    {
+    public:
+        CommandOptions(CommandInterpreter &interpreter) : Options(interpreter)
+        {
+        }
+
+        ~CommandOptions() override = default;
+
+        Error
+        SetOptionValue(uint32_t option_idx, const char *option_arg) override
+        {
+            Error error;
+            const int short_option = m_getopt_table[option_idx].val;
+
+            switch (short_option)
+            {
+                case 'f':
+                    m_outfile.SetFile(option_arg, true);
+                    if (m_outfile.Exists())
+                    {
+                        m_outfile.Clear();
+                        error.SetErrorStringWithFormat("file already exists: '%s'", option_arg);
+                    }
+                    break;
+                default:
+                    error.SetErrorStringWithFormat("unrecognized option '%c'", short_option);
+                    break;
+            }
+            return error;
+        }
+
+        void
+        OptionParsingStarting() override
+        {
+            m_outfile.Clear();
+        }
+
+        const OptionDefinition*
+        GetDefinitions() override
+        {
+            return g_option_table;
+        }
+
+        static OptionDefinition g_option_table[];
+        FileSpec m_outfile;
+    };
+
+    bool
+    DoExecute(Args &command, CommandReturnObject &result) override
+    {
+        const size_t argc = command.GetArgumentCount();
+        if (argc < 1)
+        {
+            result.AppendErrorWithFormat("'%s' takes 1 argument, an allocation ID. As well as an optional -f argument",
+                                         m_cmd_name.c_str());
+            result.SetStatus(eReturnStatusFailed);
+            return false;
+        }
+
+        RenderScriptRuntime *runtime =
+          static_cast<RenderScriptRuntime *>(m_exe_ctx.GetProcessPtr()->GetLanguageRuntime(eLanguageTypeExtRenderScript));
+
+        const char* id_cstr = command.GetArgumentAtIndex(0);
+        bool convert_complete = false;
+        const uint32_t id = StringConvert::ToUInt32(id_cstr, UINT32_MAX, 0, &convert_complete);
+        if (!convert_complete)
+        {
+            result.AppendErrorWithFormat("invalid allocation id argument '%s'", id_cstr);
+            result.SetStatus(eReturnStatusFailed);
+            return false;
+        }
+
+        Stream* output_strm = nullptr;
+        StreamFile outfile_stream;
+        const FileSpec &outfile_spec = m_options.m_outfile; // Dump allocation to file instead
+        if (outfile_spec)
+        {
+            // Open output file
+            char path[256];
+            outfile_spec.GetPath(path, sizeof(path));
+            if (outfile_stream.GetFile().Open(path, File::eOpenOptionWrite | File::eOpenOptionCanCreate).Success())
+            {
+                output_strm = &outfile_stream;
+                result.GetOutputStream().Printf("Results written to '%s'", path);
+                result.GetOutputStream().EOL();
+            }
+            else
+            {
+                result.AppendErrorWithFormat("Couldn't open file '%s'", path);
+                result.SetStatus(eReturnStatusFailed);
+                return false;
+            }
+        }
+        else
+            output_strm = &result.GetOutputStream();
+
+        assert(output_strm != nullptr);
+        bool success = runtime->DumpAllocation(*output_strm, m_exe_ctx.GetFramePtr(), id);
+
+        if (success)
+            result.SetStatus(eReturnStatusSuccessFinishResult);
+        else
+            result.SetStatus(eReturnStatusFailed);
+
+        return true;
+    }
+
+private:
+    CommandOptions m_options;
+};
+
+OptionDefinition
+CommandObjectRenderScriptRuntimeAllocationDump::CommandOptions::g_option_table[] =
+{
+    { LLDB_OPT_SET_1, false, "file", 'f', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeFilename,
+      "Print results to specified file instead of command line."},
+    { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL }
+};
+
+class CommandObjectRenderScriptRuntimeAllocationList : public CommandObjectParsed
+{
+public:
+    CommandObjectRenderScriptRuntimeAllocationList(CommandInterpreter &interpreter)
+        : CommandObjectParsed(interpreter, "renderscript allocation list",
+                              "List renderscript allocations and their information.", "renderscript allocation list",
+                              eCommandRequiresProcess | eCommandProcessMustBeLaunched), m_options(interpreter)
+    {
+    }
+
+    ~CommandObjectRenderScriptRuntimeAllocationList() override = default;
+
+    Options*
+    GetOptions() override
+    {
+        return &m_options;
+    }
+
+    class CommandOptions : public Options
+    {
+    public:
+        CommandOptions(CommandInterpreter &interpreter) : Options(interpreter), m_refresh(false)
+        {
+        }
+
+        ~CommandOptions() override = default;
+
+        Error
+        SetOptionValue(uint32_t option_idx, const char *option_arg) override
+        {
+            Error error;
+            const int short_option = m_getopt_table[option_idx].val;
+
+            switch (short_option)
+            {
+                case 'r':
+                    m_refresh = true;
+                    break;
+                default:
+                    error.SetErrorStringWithFormat("unrecognized option '%c'", short_option);
+                    break;
+            }
+            return error;
+        }
+
+        void
+        OptionParsingStarting() override
+        {
+            m_refresh = false;
+        }
+
+        const OptionDefinition*
+        GetDefinitions() override
+        {
+            return g_option_table;
+        }
+
+        static OptionDefinition g_option_table[];
+        bool m_refresh;
+    };
+
+    bool
+    DoExecute(Args &command, CommandReturnObject &result) override
+    {
+        RenderScriptRuntime *runtime =
+          static_cast<RenderScriptRuntime *>(m_exe_ctx.GetProcessPtr()->GetLanguageRuntime(eLanguageTypeExtRenderScript));
+        runtime->ListAllocations(result.GetOutputStream(), m_exe_ctx.GetFramePtr(), m_options.m_refresh);
+        result.SetStatus(eReturnStatusSuccessFinishResult);
+        return true;
+    }
+
+private:
+    CommandOptions m_options;
+};
+
+OptionDefinition
+CommandObjectRenderScriptRuntimeAllocationList::CommandOptions::g_option_table[] =
+{
+    { LLDB_OPT_SET_1, false, "refresh", 'r', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone,
+      "Recompute allocation details."},
+    { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL }
+};
+
+class CommandObjectRenderScriptRuntimeAllocationLoad : public CommandObjectParsed
+{
+public:
+    CommandObjectRenderScriptRuntimeAllocationLoad(CommandInterpreter &interpreter)
+        : CommandObjectParsed(interpreter, "renderscript allocation load",
+                              "Loads renderscript allocation contents from a file.", "renderscript allocation load <ID> <filename>",
+                              eCommandRequiresProcess | eCommandProcessMustBeLaunched)
+    {
+    }
+
+    ~CommandObjectRenderScriptRuntimeAllocationLoad() override = default;
+
+    bool
+    DoExecute(Args &command, CommandReturnObject &result) override
+    {
+        const size_t argc = command.GetArgumentCount();
+        if (argc != 2)
+        {
+            result.AppendErrorWithFormat("'%s' takes 2 arguments, an allocation ID and filename to read from.", m_cmd_name.c_str());
+            result.SetStatus(eReturnStatusFailed);
+            return false;
+        }
+
+        RenderScriptRuntime *runtime =
+          static_cast<RenderScriptRuntime *>(m_exe_ctx.GetProcessPtr()->GetLanguageRuntime(eLanguageTypeExtRenderScript));
+
+        const char* id_cstr = command.GetArgumentAtIndex(0);
+        bool convert_complete = false;
+        const uint32_t id = StringConvert::ToUInt32(id_cstr, UINT32_MAX, 0, &convert_complete);
+        if (!convert_complete)
+        {
+            result.AppendErrorWithFormat ("invalid allocation id argument '%s'", id_cstr);
+            result.SetStatus (eReturnStatusFailed);
+            return false;
+        }
+
+        const char* filename = command.GetArgumentAtIndex(1);
+        bool success = runtime->LoadAllocation(result.GetOutputStream(), id, filename, m_exe_ctx.GetFramePtr());
+
+        if (success)
+            result.SetStatus(eReturnStatusSuccessFinishResult);
+        else
+            result.SetStatus(eReturnStatusFailed);
+
+        return true;
+    }
+};
+
+class CommandObjectRenderScriptRuntimeAllocationSave : public CommandObjectParsed
+{
+public:
+    CommandObjectRenderScriptRuntimeAllocationSave(CommandInterpreter &interpreter)
+        : CommandObjectParsed(interpreter, "renderscript allocation save",
+                              "Write renderscript allocation contents to a file.", "renderscript allocation save <ID> <filename>",
+                              eCommandRequiresProcess | eCommandProcessMustBeLaunched)
+    {
+    }
+
+    ~CommandObjectRenderScriptRuntimeAllocationSave() override = default;
+
+    bool
+    DoExecute(Args &command, CommandReturnObject &result) override
+    {
+        const size_t argc = command.GetArgumentCount();
+        if (argc != 2)
+        {
+            result.AppendErrorWithFormat("'%s' takes 2 arguments, an allocation ID and filename to read from.", m_cmd_name.c_str());
+            result.SetStatus(eReturnStatusFailed);
+            return false;
+        }
+
+        RenderScriptRuntime *runtime =
+          static_cast<RenderScriptRuntime *>(m_exe_ctx.GetProcessPtr()->GetLanguageRuntime(eLanguageTypeExtRenderScript));
+
+        const char* id_cstr = command.GetArgumentAtIndex(0);
+        bool convert_complete = false;
+        const uint32_t id = StringConvert::ToUInt32(id_cstr, UINT32_MAX, 0, &convert_complete);
+        if (!convert_complete)
+        {
+            result.AppendErrorWithFormat ("invalid allocation id argument '%s'", id_cstr);
+            result.SetStatus (eReturnStatusFailed);
+            return false;
+        }
+
+        const char* filename = command.GetArgumentAtIndex(1);
+        bool success = runtime->SaveAllocation(result.GetOutputStream(), id, filename, m_exe_ctx.GetFramePtr());
+
+        if (success)
+            result.SetStatus(eReturnStatusSuccessFinishResult);
+        else
+            result.SetStatus(eReturnStatusFailed);
+
+        return true;
+    }
+};
+
+class CommandObjectRenderScriptRuntimeAllocation : public CommandObjectMultiword
+{
+public:
+    CommandObjectRenderScriptRuntimeAllocation(CommandInterpreter &interpreter)
+        : CommandObjectMultiword(interpreter, "renderscript allocation", "Commands that deal with renderscript allocations.",
+                                 NULL)
+    {
+        LoadSubCommand("list", CommandObjectSP(new CommandObjectRenderScriptRuntimeAllocationList(interpreter)));
+        LoadSubCommand("dump", CommandObjectSP(new CommandObjectRenderScriptRuntimeAllocationDump(interpreter)));
+        LoadSubCommand("save", CommandObjectSP(new CommandObjectRenderScriptRuntimeAllocationSave(interpreter)));
+        LoadSubCommand("load", CommandObjectSP(new CommandObjectRenderScriptRuntimeAllocationLoad(interpreter)));
+    }
+
+    ~CommandObjectRenderScriptRuntimeAllocation() override = default;
 };
 
 class CommandObjectRenderScriptRuntimeStatus : public CommandObjectParsed
 {
-  private:
-  public:
+public:
     CommandObjectRenderScriptRuntimeStatus(CommandInterpreter &interpreter)
         : CommandObjectParsed(interpreter, "renderscript status",
                               "Displays current renderscript runtime status.", "renderscript status",
@@ -1137,10 +3865,10 @@ class CommandObjectRenderScriptRuntimeStatus : public CommandObjectParsed
     {
     }
 
-    ~CommandObjectRenderScriptRuntimeStatus() {}
+    ~CommandObjectRenderScriptRuntimeStatus() override = default;
 
     bool
-    DoExecute(Args &command, CommandReturnObject &result)
+    DoExecute(Args &command, CommandReturnObject &result) override
     {
         RenderScriptRuntime *runtime =
             (RenderScriptRuntime *)m_exe_ctx.GetProcessPtr()->GetLanguageRuntime(eLanguageTypeExtRenderScript);
@@ -1152,7 +3880,7 @@ class CommandObjectRenderScriptRuntimeStatus : public CommandObjectParsed
 
 class CommandObjectRenderScriptRuntime : public CommandObjectMultiword
 {
-  public:
+public:
     CommandObjectRenderScriptRuntime(CommandInterpreter &interpreter)
         : CommandObjectMultiword(interpreter, "renderscript", "A set of commands for operating on renderscript.",
                                  "renderscript <subcommand> [<subcommand-options>]")
@@ -1161,9 +3889,10 @@ class CommandObjectRenderScriptRuntime : public CommandObjectMultiword
         LoadSubCommand("status", CommandObjectSP(new CommandObjectRenderScriptRuntimeStatus(interpreter)));
         LoadSubCommand("kernel", CommandObjectSP(new CommandObjectRenderScriptRuntimeKernel(interpreter)));
         LoadSubCommand("context", CommandObjectSP(new CommandObjectRenderScriptRuntimeContext(interpreter)));
+        LoadSubCommand("allocation", CommandObjectSP(new CommandObjectRenderScriptRuntimeAllocation(interpreter)));
     }
 
-    ~CommandObjectRenderScriptRuntime() {}
+    ~CommandObjectRenderScriptRuntime() override = default;
 };
 
 void
@@ -1173,7 +3902,8 @@ RenderScriptRuntime::Initiate()
 }
 
 RenderScriptRuntime::RenderScriptRuntime(Process *process)
-    : lldb_private::CPPLanguageRuntime(process), m_initiated(false), m_debuggerPresentFlagged(false)
+    : lldb_private::CPPLanguageRuntime(process), m_initiated(false), m_debuggerPresentFlagged(false),
+      m_breakAllKernels(false)
 {
     ModulesDidLoad(process->GetTarget().GetImages());
 }
@@ -1189,3 +3919,4 @@ RenderScriptRuntime::GetCommandObject(lldb_private::CommandInterpreter& interpre
     return command_object;
 }
 
+RenderScriptRuntime::~RenderScriptRuntime() = default;
diff --git a/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.h b/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.h
index 2a01e744e9768..0ca268c93b007 100644
--- a/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.h
+++ b/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.h
@@ -12,6 +12,12 @@
 
 // C Includes
 // C++ Includes
+#include <array>
+#include <map>
+#include <memory>
+#include <string>
+#include <vector>
+
 // Other libraries and framework includes
 // Project includes
 #include "lldb/lldb-private.h"
@@ -19,8 +25,8 @@
 #include "lldb/Target/CPPLanguageRuntime.h"
 #include "lldb/Core/Module.h"
 
-namespace lldb_private
-{
+namespace lldb_private {
+namespace lldb_renderscript {
 
 typedef uint32_t RSSlot;
 class RSModuleDescriptor;
@@ -31,11 +37,56 @@ typedef std::shared_ptr<RSModuleDescriptor> RSModuleDescriptorSP;
 typedef std::shared_ptr<RSGlobalDescriptor> RSGlobalDescriptorSP;
 typedef std::shared_ptr<RSKernelDescriptor> RSKernelDescriptorSP;
 
+// Breakpoint Resolvers decide where a breakpoint is placed,
+// so having our own allows us to limit the search scope to RS kernel modules.
+// As well as check for .expand kernels as a fallback.
+class RSBreakpointResolver : public BreakpointResolver
+{
+public:
+    RSBreakpointResolver(Breakpoint *bkpt, ConstString name):
+                         BreakpointResolver (bkpt, BreakpointResolver::NameResolver),
+                         m_kernel_name(name)
+    {
+    }
+
+    void
+    GetDescription(Stream *strm) override
+    {
+        if (strm)
+            strm->Printf("RenderScript kernel breakpoint for '%s'", m_kernel_name.AsCString());
+    }
+
+    void
+    Dump(Stream *s) const override
+    {
+    }
+
+    Searcher::CallbackReturn
+    SearchCallback(SearchFilter &filter,
+                   SymbolContext &context,
+                   Address *addr,
+                   bool containing) override;
+
+    Searcher::Depth
+    GetDepth() override
+    {
+        return Searcher::eDepthModule;
+    }
+
+    lldb::BreakpointResolverSP
+    CopyForBreakpoint(Breakpoint &breakpoint) override
+    {
+        lldb::BreakpointResolverSP ret_sp(new RSBreakpointResolver(&breakpoint, m_kernel_name));
+        return ret_sp;
+    }
 
+protected:
+    ConstString m_kernel_name;
+};
 
 struct RSKernelDescriptor
 {
-  public:
+public:
     RSKernelDescriptor(const RSModuleDescriptor *module, const char *name, uint32_t slot)
         : m_module(module)
         , m_name(name)
@@ -52,7 +103,7 @@ struct RSKernelDescriptor
 
 struct RSGlobalDescriptor
 {
-  public:
+public:
     RSGlobalDescriptor(const RSModuleDescriptor *module, const char *name )
         : m_module(module)
         , m_name(name)
@@ -67,13 +118,13 @@ struct RSGlobalDescriptor
 
 class RSModuleDescriptor
 {
-  public:
+public:
     RSModuleDescriptor(const lldb::ModuleSP &module)
         : m_module(module)
     {
     }
 
-    ~RSModuleDescriptor() {}
+    ~RSModuleDescriptor() = default;
 
     bool ParseRSInfo();
 
@@ -86,10 +137,11 @@ class RSModuleDescriptor
     std::string m_resname;
 };
 
+} // namespace lldb_renderscript
+
 class RenderScriptRuntime : public lldb_private::CPPLanguageRuntime
 {
-  public:
-
+public:
     enum ModuleKind
     {
         eModuleKindIgnored,
@@ -99,8 +151,7 @@ class RenderScriptRuntime : public lldb_private::CPPLanguageRuntime
         eModuleKindKernelObj
     };
 
-
-    ~RenderScriptRuntime() {}
+    ~RenderScriptRuntime() override;
 
     //------------------------------------------------------------------
     // Static Functions
@@ -121,21 +172,19 @@ class RenderScriptRuntime : public lldb_private::CPPLanguageRuntime
 
     static void ModulesDidLoad(const lldb::ProcessSP& process_sp, const ModuleList &module_list );
 
-    //------------------------------------------------------------------
-    // PluginInterface protocol
-    //------------------------------------------------------------------
-    virtual lldb_private::ConstString GetPluginName();
-
-    virtual uint32_t GetPluginVersion();
+    bool IsVTableName(const char *name) override;
 
-    virtual bool IsVTableName(const char *name);
-
-    virtual bool GetDynamicTypeAndAddress(ValueObject &in_value, lldb::DynamicValueType use_dynamic,
-                                          TypeAndOrName &class_type_or_name, Address &address);
+    bool GetDynamicTypeAndAddress(ValueObject &in_value, lldb::DynamicValueType use_dynamic,
+                                  TypeAndOrName &class_type_or_name, Address &address,
+                                  Value::ValueType &value_type) override;
+    
+    TypeAndOrName
+    FixUpDynamicType(const TypeAndOrName& type_and_or_name,
+                     ValueObject& static_value) override;
 
-    virtual bool CouldHaveDynamicValue(ValueObject &in_value);
+    bool CouldHaveDynamicValue(ValueObject &in_value) override;
 
-    virtual lldb::BreakpointResolverSP CreateExceptionResolver(Breakpoint *bkpt, bool catch_bp, bool throw_bp);
+    lldb::BreakpointResolverSP CreateExceptionResolver(Breakpoint *bkpt, bool catch_bp, bool throw_bp) override;
 
     bool LoadModule(const lldb::ModuleSP &module_sp);
 
@@ -147,25 +196,60 @@ class RenderScriptRuntime : public lldb_private::CPPLanguageRuntime
 
     void DumpKernels(Stream &strm) const;
 
-    void AttemptBreakpointAtKernelName(Stream &strm, const char *name, Error &error);
+    bool DumpAllocation(Stream &strm, StackFrame* frame_ptr, const uint32_t id);
+
+    void ListAllocations(Stream &strm, StackFrame* frame_ptr, bool recompute);
+
+    void PlaceBreakpointOnKernel(Stream &strm, const char *name, const std::array<int,3> coords,
+                                 Error &error, lldb::TargetSP target);
+
+    void SetBreakAllKernels(bool do_break, lldb::TargetSP target);
 
     void Status(Stream &strm) const;
 
-    virtual size_t GetAlternateManglings(const ConstString &mangled, std::vector<ConstString> &alternates) {
+    size_t GetAlternateManglings(const ConstString &mangled, std::vector<ConstString> &alternates) override {
         return static_cast<size_t>(0);
     }
 
-    virtual void ModulesDidLoad(const ModuleList &module_list );
+    void ModulesDidLoad(const ModuleList &module_list) override;
+
+    bool LoadAllocation(Stream &strm, const uint32_t alloc_id, const char* filename, StackFrame* frame_ptr);
+
+    bool SaveAllocation(Stream &strm, const uint32_t alloc_id, const char* filename, StackFrame* frame_ptr);
 
     void Update();
 
     void Initiate();
+
+    //------------------------------------------------------------------
+    // PluginInterface protocol
+    //------------------------------------------------------------------
+    lldb_private::ConstString GetPluginName() override;
+
+    uint32_t GetPluginVersion() override;
+
+protected:
+    struct ScriptDetails;
+    struct AllocationDetails;
+    struct Element;
+
+    void InitSearchFilter(lldb::TargetSP target)
+    {
+        if (!m_filtersp)
+            m_filtersp.reset(new SearchFilterForUnconstrainedSearches(target));
+    }
     
-  protected:
-    
-    void FixupScriptDetails(RSModuleDescriptorSP rsmodule_sp);
+    void FixupScriptDetails(lldb_renderscript::RSModuleDescriptorSP rsmodule_sp);
 
     void LoadRuntimeHooks(lldb::ModuleSP module, ModuleKind kind);
+
+    bool RefreshAllocation(AllocationDetails* allocation, StackFrame* frame_ptr);
+
+    bool EvalRSExpression(const char* expression, StackFrame* frame_ptr, uint64_t* result);
+
+    lldb::BreakpointSP CreateKernelBreakpoint(const ConstString& name);
+
+    void BreakOnModuleKernels(const lldb_renderscript::RSModuleDescriptorSP rsmodule_sp);
     
     struct RuntimeHook;
     typedef void (RenderScriptRuntime::*CaptureStateFn)(RuntimeHook* hook_info, ExecutionContext &context);  // Please do this!
@@ -173,7 +257,8 @@ class RenderScriptRuntime : public lldb_private::CPPLanguageRuntime
     struct HookDefn
     {
         const char * name;
-        const char * symbol_name;
+        const char * symbol_name_m32; // mangled name for the 32 bit architectures
+        const char * symbol_name_m64; // mangled name for the 64 bit archs
         uint32_t version;
         ModuleKind kind;
         CaptureStateFn grabber;
@@ -185,46 +270,102 @@ class RenderScriptRuntime : public lldb_private::CPPLanguageRuntime
         const HookDefn  *defn;
         lldb::BreakpointSP bp_sp;
     };
-    
-    typedef std::shared_ptr<RuntimeHook> RuntimeHookSP;
 
-    struct ScriptDetails
-    {
-        std::string resname;
-        std::string scriptDyLib;
-        std::string cachedir;
-        lldb::addr_t context;
-        lldb::addr_t script;
-    };
+    typedef std::shared_ptr<RuntimeHook> RuntimeHookSP;
 
     lldb::ModuleSP m_libRS;
     lldb::ModuleSP m_libRSDriver;
     lldb::ModuleSP m_libRSCpuRef;
-    std::vector<RSModuleDescriptorSP> m_rsmodules;
-    std::vector<ScriptDetails> m_scripts;
+    std::vector<lldb_renderscript::RSModuleDescriptorSP> m_rsmodules;
+
+    std::vector<std::unique_ptr<ScriptDetails>> m_scripts;
+    std::vector<std::unique_ptr<AllocationDetails>> m_allocations;
 
-    std::map<lldb::addr_t, RSModuleDescriptorSP> m_scriptMappings;
+    std::map<lldb::addr_t, lldb_renderscript::RSModuleDescriptorSP> m_scriptMappings;
     std::map<lldb::addr_t, RuntimeHookSP> m_runtimeHooks;
+    std::map<lldb::user_id_t, std::shared_ptr<int>> m_conditional_breaks;
+
+    lldb::SearchFilterSP m_filtersp; // Needed to create breakpoints through Target API
 
     bool m_initiated;
     bool m_debuggerPresentFlagged;
+    bool m_breakAllKernels;
     static const HookDefn s_runtimeHookDefns[];
     static const size_t s_runtimeHookCount;
 
-  private:
+private:
+    // Used to index expression format strings
+    enum ExpressionStrings
+    {
+       eExprGetOffsetPtr = 0,
+       eExprAllocGetType,
+       eExprTypeDimX,
+       eExprTypeDimY,
+       eExprTypeDimZ,
+       eExprTypeElemPtr,
+       eExprElementType,
+       eExprElementKind,
+       eExprElementVec,
+       eExprElementFieldCount,
+       eExprSubelementsId,
+       eExprSubelementsName,
+       eExprSubelementsArrSize
+    };
+
     RenderScriptRuntime(Process *process); // Call CreateInstance instead.
     
     static bool HookCallback(void *baton, StoppointCallbackContext *ctx, lldb::user_id_t break_id,
                              lldb::user_id_t break_loc_id);
 
+    static bool KernelBreakpointHit(void *baton, StoppointCallbackContext *ctx,
+                                    lldb::user_id_t break_id, lldb::user_id_t break_loc_id);
+
     void HookCallback(RuntimeHook* hook_info, ExecutionContext& context);
 
-    bool GetArg32Simple(ExecutionContext& context, uint32_t arg, uint32_t *data);
+    bool GetArgSimple(ExecutionContext& context, uint32_t arg, uint64_t* data);
 
     void CaptureScriptInit1(RuntimeHook* hook_info, ExecutionContext& context);
     void CaptureAllocationInit1(RuntimeHook* hook_info, ExecutionContext& context);
+    void CaptureAllocationDestroy(RuntimeHook* hook_info, ExecutionContext& context);
     void CaptureSetGlobalVar1(RuntimeHook* hook_info, ExecutionContext& context);
 
+    AllocationDetails* FindAllocByID(Stream &strm, const uint32_t alloc_id);
+    std::shared_ptr<uint8_t> GetAllocationData(AllocationDetails* allocation, StackFrame* frame_ptr);
+    void SetElementSize(Element& elem);
+    static bool GetFrameVarAsUnsigned(const lldb::StackFrameSP, const char* var_name, uint64_t& val);
+    void FindStructTypeName(Element& elem, StackFrame* frame_ptr);
+
+    //
+    // Helper functions for jitting the runtime
+    //
+    const char* JITTemplate(ExpressionStrings e);
+
+    bool JITDataPointer(AllocationDetails* allocation, StackFrame* frame_ptr,
+                        unsigned int x = 0, unsigned int y = 0, unsigned int z = 0);
+
+    bool JITTypePointer(AllocationDetails* allocation, StackFrame* frame_ptr);
+
+    bool JITTypePacked(AllocationDetails* allocation, StackFrame* frame_ptr);
+
+    bool JITElementPacked(Element& elem, const lldb::addr_t context, StackFrame* frame_ptr);
+
+    bool JITAllocationSize(AllocationDetails* allocation, StackFrame* frame_ptr);
+
+    bool JITSubelements(Element& elem, const lldb::addr_t context, StackFrame* frame_ptr);
+
+    bool JITAllocationStride(AllocationDetails* allocation, StackFrame* frame_ptr);
+
+    // Search for a script detail object using a target address.
+    // If a script does not currently exist this function will return nullptr.
+    // If 'create' is true and there is no previous script with this address,
+    // then a new Script detail object will be created for this address and returned.
+    ScriptDetails* LookUpScript(lldb::addr_t address, bool create);
+
+    // Search for a previously saved allocation detail object using a target address.
+    // If an allocation does not exist for this address then nullptr will be returned.
+    // If 'create' is true and there is no previous allocation then a new allocation
+    // detail object will be created for this address and returned.
+    AllocationDetails* LookUpAllocation(lldb::addr_t address, bool create);
 };
 
 } // namespace lldb_private
diff --git a/source/Plugins/MemoryHistory/asan/MemoryHistoryASan.cpp b/source/Plugins/MemoryHistory/asan/MemoryHistoryASan.cpp
index c7c64ed54d87e..c575198716241 100644
--- a/source/Plugins/MemoryHistory/asan/MemoryHistoryASan.cpp
+++ b/source/Plugins/MemoryHistory/asan/MemoryHistoryASan.cpp
@@ -30,36 +30,25 @@ MemoryHistoryASan::CreateInstance (const ProcessSP &process_sp)
 {
     if (!process_sp.get())
         return NULL;
-    
+
     Target & target = process_sp->GetTarget();
-    
-    bool found_asan_runtime = false;
-    
+
     const ModuleList &target_modules = target.GetImages();
     Mutex::Locker modules_locker(target_modules.GetMutex());
     const size_t num_modules = target_modules.GetSize();
     for (size_t i = 0; i < num_modules; ++i)
     {
         Module *module_pointer = target_modules.GetModulePointerAtIndexUnlocked(i);
-        
-        SymbolContextList sc_list;
-        const bool include_symbols = true;
-        const bool append = true;
-        const bool include_inlines = true;
 
-        size_t num_matches = module_pointer->FindFunctions(ConstString("__asan_get_alloc_stack"), NULL, eFunctionNameTypeAuto, include_symbols, include_inlines, append, sc_list);
-        
-        if (num_matches)
-        {
-            found_asan_runtime = true;
-            break;
-        }
+        const Symbol* symbol = module_pointer->FindFirstSymbolWithNameAndType(
+                ConstString("__asan_get_alloc_stack"),
+                lldb::eSymbolTypeAny);
+
+        if (symbol != nullptr)
+            return MemoryHistorySP(new MemoryHistoryASan(process_sp));        
     }
-    
-    if (! found_asan_runtime)
-        return MemoryHistorySP();
 
-    return MemoryHistorySP(new MemoryHistoryASan(process_sp));
+    return MemoryHistorySP();
 }
 
 void
@@ -86,7 +75,8 @@ MemoryHistoryASan::GetPluginNameStatic()
 
 MemoryHistoryASan::MemoryHistoryASan(const ProcessSP &process_sp)
 {
-    this->m_process_sp = process_sp;
+    if (process_sp)
+        m_process_wp = process_sp;
 }
 
 const char *
@@ -112,14 +102,23 @@ static void CreateHistoryThreadFromValueObject(ProcessSP process_sp, ValueObject
     std::string count_path = "." + std::string(type) + "_count";
     std::string tid_path = "." + std::string(type) + "_tid";
     std::string trace_path = "." + std::string(type) + "_trace";
+    
+    ValueObjectSP count_sp = return_value_sp->GetValueForExpressionPath(count_path.c_str());
+    ValueObjectSP tid_sp = return_value_sp->GetValueForExpressionPath(tid_path.c_str());
+    
+    if (!count_sp || !tid_sp)
+        return;
 
-    int count = return_value_sp->GetValueForExpressionPath(count_path.c_str())->GetValueAsUnsigned(0);
-    tid_t tid = return_value_sp->GetValueForExpressionPath(tid_path.c_str())->GetValueAsUnsigned(0);
+    int count = count_sp->GetValueAsUnsigned(0);
+    tid_t tid = tid_sp->GetValueAsUnsigned(0);
 
     if (count <= 0)
         return;
 
     ValueObjectSP trace_sp = return_value_sp->GetValueForExpressionPath(trace_path.c_str());
+    
+    if (!trace_sp)
+        return;
 
     std::vector<lldb::addr_t> pcs;
     for (int i = 0; i < count; i++)
@@ -144,40 +143,41 @@ static void CreateHistoryThreadFromValueObject(ProcessSP process_sp, ValueObject
 HistoryThreads
 MemoryHistoryASan::GetHistoryThreads(lldb::addr_t address)
 {
-    ProcessSP process_sp = m_process_sp;
-    ThreadSP thread_sp = m_process_sp->GetThreadList().GetSelectedThread();
-    StackFrameSP frame_sp = thread_sp->GetSelectedFrame();
+    HistoryThreads result;
 
-    if (!frame_sp)
+    ProcessSP process_sp = m_process_wp.lock();
+    if (process_sp)
     {
-        return HistoryThreads();
-    }
+        ThreadSP thread_sp = process_sp->GetThreadList().GetSelectedThread();
 
-    ExecutionContext exe_ctx (frame_sp);
-    ValueObjectSP return_value_sp;
-    StreamString expr;
-    expr.Printf(memory_history_asan_command_format, address, address);
-    
-    EvaluateExpressionOptions options;
-    options.SetUnwindOnError(true);
-    options.SetTryAllThreads(true);
-    options.SetStopOthers(true);
-    options.SetIgnoreBreakpoints(true);
-    options.SetTimeoutUsec(GET_STACK_FUNCTION_TIMEOUT_USEC);
-
-    if (m_process_sp->GetTarget().EvaluateExpression(expr.GetData(), frame_sp.get(), return_value_sp, options) != eExpressionCompleted)
-    {
-        return HistoryThreads();
-    }
-    if (!return_value_sp)
-    {
-        return HistoryThreads();
+        if (thread_sp)
+        {
+            StackFrameSP frame_sp = thread_sp->GetSelectedFrame();
+
+            if (frame_sp)
+            {
+                ExecutionContext exe_ctx (frame_sp);
+                ValueObjectSP return_value_sp;
+                StreamString expr;
+                expr.Printf(memory_history_asan_command_format, address, address);
+                
+                EvaluateExpressionOptions options;
+                options.SetUnwindOnError(true);
+                options.SetTryAllThreads(true);
+                options.SetStopOthers(true);
+                options.SetIgnoreBreakpoints(true);
+                options.SetTimeoutUsec(GET_STACK_FUNCTION_TIMEOUT_USEC);
+
+                if (process_sp->GetTarget().EvaluateExpression(expr.GetData(), frame_sp.get(), return_value_sp, options) == eExpressionCompleted)
+                {
+                    if (return_value_sp)
+                    {
+                        CreateHistoryThreadFromValueObject(process_sp, return_value_sp, "free", "Memory deallocated at", result);
+                        CreateHistoryThreadFromValueObject(process_sp, return_value_sp, "alloc", "Memory allocated at", result);
+                    }
+                }
+            }
+        }
     }
-    
-    HistoryThreads result;
-
-    CreateHistoryThreadFromValueObject(process_sp, return_value_sp, "alloc", "Memory allocated at", result);
-    CreateHistoryThreadFromValueObject(process_sp, return_value_sp, "free", "Memory deallocated at", result);
-    
     return result;
 }
diff --git a/source/Plugins/MemoryHistory/asan/MemoryHistoryASan.h b/source/Plugins/MemoryHistory/asan/MemoryHistoryASan.h
index 5307e0b340818..b38f95ed744ea 100644
--- a/source/Plugins/MemoryHistory/asan/MemoryHistoryASan.h
+++ b/source/Plugins/MemoryHistory/asan/MemoryHistoryASan.h
@@ -1,4 +1,4 @@
-//===-- MemoryHistoryASan.h ----------------------------------------*- C++ -*-===//
+//===-- MemoryHistoryASan.h -------------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -24,7 +24,8 @@ namespace lldb_private {
 class MemoryHistoryASan : public lldb_private::MemoryHistory
 {
 public:
-    
+    ~MemoryHistoryASan() override = default;
+
     static lldb::MemoryHistorySP
     CreateInstance (const lldb::ProcessSP &process_sp);
     
@@ -36,27 +37,28 @@ public:
     
     static lldb_private::ConstString
     GetPluginNameStatic();
+
+    lldb_private::ConstString
+    GetPluginName() override
+    {
+        return GetPluginNameStatic();
+    }
     
-    virtual
-    ~MemoryHistoryASan () {}
-    
-    virtual lldb_private::ConstString
-    GetPluginName() { return GetPluginNameStatic(); }
-    
-    virtual uint32_t
-    GetPluginVersion() { return 1; }
+    uint32_t
+    GetPluginVersion() override
+    {
+        return 1;
+    }
     
-    virtual lldb_private::HistoryThreads
-    GetHistoryThreads(lldb::addr_t address);
+    lldb_private::HistoryThreads
+    GetHistoryThreads(lldb::addr_t address) override;
     
 private:
-    
     MemoryHistoryASan(const lldb::ProcessSP &process_sp);
     
-    lldb::ProcessSP m_process_sp;
-    
+    lldb::ProcessWP m_process_wp;
 };
 
 } // namespace lldb_private
     
-#endif  // liblldb_MemoryHistoryASan_h_
+#endif // liblldb_MemoryHistoryASan_h_
diff --git a/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp b/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp
index 8209d23c0aee6..f2a74b05fe265 100644
--- a/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp
+++ b/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp
@@ -103,9 +103,13 @@ ObjectContainerBSDArchive::Object::Extract (const DataExtractor& data, lldb::off
     }
     else
     {
-        // Strip off any spaces (if the object file name contains spaces it
-        // will use the extended format above).
-        str.erase (str.find(' '));
+        // Strip off any trailing spaces.
+        const size_t last_pos = str.find_last_not_of(' ');
+        if (last_pos != std::string::npos)
+        {
+            if (last_pos + 1 < 16)
+                str.erase (last_pos + 1);
+        }
         ar_name.SetCString(str.c_str());
     }
 
diff --git a/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.h b/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.h
index 8093c580ff970..cbb3848dc7cd2 100644
--- a/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.h
+++ b/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.h
@@ -10,8 +10,11 @@
 #ifndef liblldb_ObjectContainerBSDArchive_h_
 #define liblldb_ObjectContainerBSDArchive_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Symbol/ObjectContainer.h"
-
 #include "lldb/Core/ArchSpec.h"
 #include "lldb/Core/ConstString.h"
 #include "lldb/Host/FileSpec.h"
@@ -22,6 +25,14 @@ class ObjectContainerBSDArchive :
     public lldb_private::ObjectContainer
 {
 public:
+    ObjectContainerBSDArchive(const lldb::ModuleSP &module_sp,
+                              lldb::DataBufferSP& data_sp,
+                              lldb::offset_t data_offset,
+                              const lldb_private::FileSpec *file,
+                              lldb::offset_t offset,
+                              lldb::offset_t length);
+
+    ~ObjectContainerBSDArchive() override;
 
     //------------------------------------------------------------------
     // Static Functions
@@ -60,43 +71,33 @@ public:
     //------------------------------------------------------------------
     // Member Functions
     //------------------------------------------------------------------
-    ObjectContainerBSDArchive (const lldb::ModuleSP &module_sp,
-                               lldb::DataBufferSP& data_sp,
-                               lldb::offset_t data_offset,
-                               const lldb_private::FileSpec *file,
-                               lldb::offset_t offset,
-                               lldb::offset_t length);
-
-    virtual
-    ~ObjectContainerBSDArchive();
+    bool
+    ParseHeader() override;
 
-    virtual bool
-    ParseHeader ();
-
-    virtual size_t
-    GetNumObjects () const
+    size_t
+    GetNumObjects() const override
     {
         if (m_archive_sp)
             return m_archive_sp->GetNumObjects();
         return 0;
     }
-    virtual void
-    Dump (lldb_private::Stream *s) const;
 
-    virtual lldb::ObjectFileSP
-    GetObjectFile (const lldb_private::FileSpec *file);
+    void
+    Dump(lldb_private::Stream *s) const override;
+
+    lldb::ObjectFileSP
+    GetObjectFile(const lldb_private::FileSpec *file) override;
 
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
 
-    virtual uint32_t
-    GetPluginVersion();
+    uint32_t
+    GetPluginVersion() override;
 
 protected:
-
     struct Object
     {
         Object();
@@ -127,6 +128,13 @@ protected:
         typedef std::shared_ptr<Archive> shared_ptr;
         typedef std::multimap<lldb_private::FileSpec, shared_ptr> Map;
 
+        Archive(const lldb_private::ArchSpec &arch,
+                const lldb_private::TimeValue &mod_time,
+                lldb::offset_t file_offset,
+                lldb_private::DataExtractor &data);
+
+        ~Archive();
+
         static Map &
         GetArchiveCache ();
 
@@ -146,13 +154,6 @@ protected:
                                      lldb::offset_t file_offset,
                                      lldb_private::DataExtractor &data);
 
-        Archive (const lldb_private::ArchSpec &arch,
-                 const lldb_private::TimeValue &mod_time,
-                 lldb::offset_t file_offset,
-                 lldb_private::DataExtractor &data);
-
-        ~Archive ();
-
         size_t
         GetNumObjects () const
         {
@@ -226,4 +227,4 @@ protected:
     Archive::shared_ptr m_archive_sp;
 };
 
-#endif  // liblldb_ObjectContainerBSDArchive_h_
+#endif // liblldb_ObjectContainerBSDArchive_h_
diff --git a/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp b/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
index 789fd49133019..44fe6615a3618 100644
--- a/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
+++ b/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
@@ -11,6 +11,7 @@
 
 #include <cassert>
 #include <algorithm>
+#include <unordered_map>
 
 #include "lldb/Core/ArchSpec.h"
 #include "lldb/Core/DataBuffer.h"
@@ -48,6 +49,8 @@ const char *const LLDB_NT_OWNER_GNU     = "GNU";
 const char *const LLDB_NT_OWNER_NETBSD  = "NetBSD";
 const char *const LLDB_NT_OWNER_CSR     = "csr";
 const char *const LLDB_NT_OWNER_ANDROID = "Android";
+const char *const LLDB_NT_OWNER_CORE    = "CORE";
+const char *const LLDB_NT_OWNER_LINUX   = "LINUX";
 
 // ELF note type definitions
 const elf_word LLDB_NT_FREEBSD_ABI_TAG  = 0x01;
@@ -66,6 +69,41 @@ const elf_word LLDB_NT_GNU_ABI_OS_LINUX   = 0x00;
 const elf_word LLDB_NT_GNU_ABI_OS_HURD    = 0x01;
 const elf_word LLDB_NT_GNU_ABI_OS_SOLARIS = 0x02;
 
+// LLDB_NT_OWNER_CORE and LLDB_NT_OWNER_LINUX note contants
+#define NT_PRSTATUS             1
+#define NT_PRFPREG              2
+#define NT_PRPSINFO             3
+#define NT_TASKSTRUCT           4
+#define NT_AUXV                 6
+#define NT_SIGINFO              0x53494749
+#define NT_FILE                 0x46494c45
+#define NT_PRXFPREG             0x46e62b7f
+#define NT_PPC_VMX              0x100
+#define NT_PPC_SPE              0x101
+#define NT_PPC_VSX              0x102
+#define NT_386_TLS              0x200
+#define NT_386_IOPERM           0x201
+#define NT_X86_XSTATE           0x202
+#define NT_S390_HIGH_GPRS       0x300
+#define NT_S390_TIMER           0x301
+#define NT_S390_TODCMP          0x302
+#define NT_S390_TODPREG         0x303
+#define NT_S390_CTRS            0x304
+#define NT_S390_PREFIX          0x305
+#define NT_S390_LAST_BREAK      0x306
+#define NT_S390_SYSTEM_CALL     0x307
+#define NT_S390_TDB             0x308
+#define NT_S390_VXRS_LOW        0x309
+#define NT_S390_VXRS_HIGH       0x30a
+#define NT_ARM_VFP              0x400
+#define NT_ARM_TLS              0x401
+#define NT_ARM_HW_BREAK         0x402
+#define NT_ARM_HW_WATCH         0x403
+#define NT_ARM_SYSTEM_CALL      0x404
+#define NT_METAG_CBUF           0x500
+#define NT_METAG_RPIPE          0x501
+#define NT_METAG_TLS            0x502
+
 //===----------------------------------------------------------------------===//
 /// @class ELFRelocation
 /// @brief Generic wrapper for ELFRel and ELFRela.
@@ -290,6 +328,11 @@ mipsVariantFromElfFlags(const elf::elf_word e_flags, uint32_t endian)
 
     switch (mips_arch)
     {
+        case llvm::ELF::EF_MIPS_ARCH_1:
+        case llvm::ELF::EF_MIPS_ARCH_2:
+        case llvm::ELF::EF_MIPS_ARCH_3:
+        case llvm::ELF::EF_MIPS_ARCH_4:
+        case llvm::ELF::EF_MIPS_ARCH_5:
         case llvm::ELF::EF_MIPS_ARCH_32:
             return (endian == ELFDATA2LSB) ? ArchSpec::eMIPSSubType_mips32el : ArchSpec::eMIPSSubType_mips32;
         case llvm::ELF::EF_MIPS_ARCH_32R2:
@@ -847,40 +890,52 @@ ObjectFileELF::SetLoadAddress (Target &target,
         SectionList *section_list = GetSectionList ();
         if (section_list)
         {
-            if (value_is_offset)
+            if (!value_is_offset)
             {
-                const size_t num_sections = section_list->GetSize();
-                size_t sect_idx = 0;
-
-                for (sect_idx = 0; sect_idx < num_sections; ++sect_idx)
+                bool found_offset = false;
+                for (size_t i = 0, count = GetProgramHeaderCount(); i < count; ++i)
                 {
-                    // Iterate through the object file sections to find all
-                    // of the sections that have SHF_ALLOC in their flag bits.
-                    SectionSP section_sp (section_list->GetSectionAtIndex (sect_idx));
-                    // if (section_sp && !section_sp->IsThreadSpecific())
-                    if (section_sp && section_sp->Test(SHF_ALLOC))
-                    {
-                        lldb::addr_t load_addr = section_sp->GetFileAddress() + value;
-                        
-                        // On 32-bit systems the load address have to fit into 4 bytes. The rest of
-                        // the bytes are the overflow from the addition.
-                        if (GetAddressByteSize() == 4)
-                            load_addr &= 0xFFFFFFFF;
-
-                        if (target.GetSectionLoadList().SetSectionLoadAddress (section_sp, load_addr))
-                            ++num_loaded_sections;
-                    }
+                    const elf::ELFProgramHeader* header = GetProgramHeaderByIndex(i);
+                    if (header == nullptr)
+                        continue;
+
+                    if (header->p_type != PT_LOAD || header->p_offset != 0)
+                        continue;
+                    
+                    value = value - header->p_vaddr;
+                    found_offset = true;
+                    break;
                 }
-                return num_loaded_sections > 0;
+                if (!found_offset)
+                    return false;
             }
-            else
+
+            const size_t num_sections = section_list->GetSize();
+            size_t sect_idx = 0;
+
+            for (sect_idx = 0; sect_idx < num_sections; ++sect_idx)
             {
-                // Not sure how to slide an ELF file given the base address
-                // of the ELF file in memory
+                // Iterate through the object file sections to find all
+                // of the sections that have SHF_ALLOC in their flag bits.
+                SectionSP section_sp (section_list->GetSectionAtIndex (sect_idx));
+                // if (section_sp && !section_sp->IsThreadSpecific())
+                if (section_sp && section_sp->Test(SHF_ALLOC))
+                {
+                    lldb::addr_t load_addr = section_sp->GetFileAddress() + value;
+
+                    // On 32-bit systems the load address have to fit into 4 bytes. The rest of
+                    // the bytes are the overflow from the addition.
+                    if (GetAddressByteSize() == 4)
+                        load_addr &= 0xFFFFFFFF;
+
+                    if (target.GetSectionLoadList().SetSectionLoadAddress (section_sp, load_addr))
+                        ++num_loaded_sections;
+                }
             }
+            return num_loaded_sections > 0;
         }
     }
-    return false; // If it changed
+    return false;
 }
 
 ByteOrder
@@ -905,8 +960,17 @@ ObjectFileELF::GetAddressByteSize() const
 AddressClass
 ObjectFileELF::GetAddressClass (addr_t file_addr)
 {
-    auto res = ObjectFile::GetAddressClass (file_addr);
+    Symtab* symtab = GetSymtab();
+    if (!symtab)
+        return eAddressClassUnknown;
+
+    // The address class is determined based on the symtab. Ask it from the object file what
+    // contains the symtab information.
+    ObjectFile* symtab_objfile = symtab->GetObjectFile();
+    if (symtab_objfile != nullptr && symtab_objfile != this)
+        return symtab_objfile->GetAddressClass(file_addr);
 
+    auto res = ObjectFile::GetAddressClass (file_addr);
     if (res != eAddressClassCode)
         return res;
 
@@ -1076,16 +1140,35 @@ ObjectFileELF::GetImageInfoAddress(Target *target)
             addr_t offset = i * dynsym_hdr->sh_entsize + GetAddressByteSize();
             return Address(dynsym_section_sp, offset);
         }
-        else if (symbol.d_tag == DT_MIPS_RLD_MAP && target)
+        // MIPS executables uses DT_MIPS_RLD_MAP_REL to support PIE. DT_MIPS_RLD_MAP exists in non-PIE.
+        else if ((symbol.d_tag == DT_MIPS_RLD_MAP || symbol.d_tag == DT_MIPS_RLD_MAP_REL) && target)
         {
             addr_t offset = i * dynsym_hdr->sh_entsize + GetAddressByteSize();
             addr_t dyn_base = dynsym_section_sp->GetLoadBaseAddress(target);
             if (dyn_base == LLDB_INVALID_ADDRESS)
                 return Address();
-            Address addr;
+
             Error error;
-            if (target->ReadPointerFromMemory(dyn_base + offset, false, error, addr))
-                return addr;
+            if (symbol.d_tag == DT_MIPS_RLD_MAP)
+            {
+                // DT_MIPS_RLD_MAP tag stores an absolute address of the debug pointer.
+                Address addr;
+                if (target->ReadPointerFromMemory(dyn_base + offset, false, error, addr))
+                    return addr;
+            }
+            if (symbol.d_tag == DT_MIPS_RLD_MAP_REL)
+            {
+                // DT_MIPS_RLD_MAP_REL tag stores the offset to the debug pointer, relative to the address of the tag.
+                uint64_t rel_offset;
+                rel_offset = target->ReadUnsignedIntegerFromMemory(dyn_base + offset, false, GetAddressByteSize(), UINT64_MAX, error);
+                if (error.Success() && rel_offset != UINT64_MAX)
+                {
+                    Address addr;
+                    addr_t debug_ptr_address = dyn_base + (offset - GetAddressByteSize()) + rel_offset;
+                    addr.SetOffset (debug_ptr_address);
+                    return addr;
+                }
+            }
         }
     }
 
@@ -1232,6 +1315,7 @@ ObjectFileELF::RefineModuleDetailsFromNote (lldb_private::DataExtractor &data, l
     while (true)
     {
         // Parse the note header.  If this fails, bail out.
+        const lldb::offset_t note_offset = offset;
         ELFNote note = ELFNote();
         if (!note.Parse(data, &offset))
         {
@@ -1239,11 +1323,6 @@ ObjectFileELF::RefineModuleDetailsFromNote (lldb_private::DataExtractor &data, l
             return error;
         }
 
-        // If a tag processor handles the tag, it should set processed to true, and
-        // the loop will assume the tag processing has moved entirely past the note's payload.
-        // Otherwise, leave it false and the end of the loop will handle the offset properly.
-        bool processed = false;
-
         if (log)
             log->Printf ("ObjectFileELF::%s parsing note name='%s', type=%" PRIu32, __FUNCTION__, note.n_name.c_str (), note.n_type);
 
@@ -1252,9 +1331,6 @@ ObjectFileELF::RefineModuleDetailsFromNote (lldb_private::DataExtractor &data, l
             (note.n_type == LLDB_NT_FREEBSD_ABI_TAG) &&
             (note.n_descsz == LLDB_NT_FREEBSD_ABI_SIZE))
         {
-            // We'll consume the payload below.
-            processed = true;
-
             // Pull out the min version info.
             uint32_t version_info;
             if (data.GetU32 (&offset, &version_info, 1) == nullptr)
@@ -1285,9 +1361,6 @@ ObjectFileELF::RefineModuleDetailsFromNote (lldb_private::DataExtractor &data, l
                 case LLDB_NT_GNU_ABI_TAG:
                     if (note.n_descsz == LLDB_NT_GNU_ABI_SIZE)
                     {
-                        // We'll consume the payload below.
-                        processed = true;
-
                         // Pull out the min OS version supporting the ABI.
                         uint32_t version_info[4];
                         if (data.GetU32 (&offset, &version_info[0], note.n_descsz / 4) == nullptr)
@@ -1330,9 +1403,6 @@ ObjectFileELF::RefineModuleDetailsFromNote (lldb_private::DataExtractor &data, l
                     // Only bother processing this if we don't already have the uuid set.
                     if (!uuid.IsValid())
                     {
-                        // We'll consume the payload below.
-                        processed = true;
-
                         // 16 bytes is UUID|MD5, 20 bytes is SHA1
                         if ((note.n_descsz == 16 || note.n_descsz == 20))
                         {
@@ -1355,10 +1425,6 @@ ObjectFileELF::RefineModuleDetailsFromNote (lldb_private::DataExtractor &data, l
                  (note.n_type == LLDB_NT_NETBSD_ABI_TAG) &&
                  (note.n_descsz == LLDB_NT_NETBSD_ABI_SIZE))
         {
-
-            // We'll consume the payload below.
-            processed = true;
-
             // Pull out the min version info.
             uint32_t version_info;
             if (data.GetU32 (&offset, &version_info, 1) == nullptr)
@@ -1378,8 +1444,6 @@ ObjectFileELF::RefineModuleDetailsFromNote (lldb_private::DataExtractor &data, l
         else if ((note.n_type == LLDB_NT_GNU_ABI_TAG) &&
                 (note.n_name == LLDB_NT_OWNER_CSR))
         {
-            // We'll consume the payload below.
-            processed = true;
             arch_spec.GetTriple().setOS(llvm::Triple::OSType::UnknownOS);
             arch_spec.GetTriple().setVendor(llvm::Triple::VendorType::CSR);
 
@@ -1397,9 +1461,48 @@ ObjectFileELF::RefineModuleDetailsFromNote (lldb_private::DataExtractor &data, l
             arch_spec.GetTriple().setOS(llvm::Triple::OSType::Linux);
             arch_spec.GetTriple().setEnvironment(llvm::Triple::EnvironmentType::Android);
         }
+        else if (note.n_name == LLDB_NT_OWNER_LINUX)
+        {
+            // This is sometimes found in core files and usually contains extended register info
+            arch_spec.GetTriple().setOS(llvm::Triple::OSType::Linux);
+        }
+        else if (note.n_name == LLDB_NT_OWNER_CORE)
+        {
+            // Parse the NT_FILE to look for stuff in paths to shared libraries
+            // As the contents look like:
+            // count     = 0x000000000000000a (10)
+            // page_size = 0x0000000000001000 (4096)
+            // Index start              end                file_ofs           path
+            // ===== ------------------ ------------------ ------------------ -------------------------------------
+            // [  0] 0x0000000000400000 0x0000000000401000 0x0000000000000000 /tmp/a.out
+            // [  1] 0x0000000000600000 0x0000000000601000 0x0000000000000000 /tmp/a.out
+            // [  2] 0x0000000000601000 0x0000000000602000 0x0000000000000001 /tmp/a.out
+            // [  3] 0x00007fa79c9ed000 0x00007fa79cba8000 0x0000000000000000 /lib/x86_64-linux-gnu/libc-2.19.so
+            // [  4] 0x00007fa79cba8000 0x00007fa79cda7000 0x00000000000001bb /lib/x86_64-linux-gnu/libc-2.19.so
+            // [  5] 0x00007fa79cda7000 0x00007fa79cdab000 0x00000000000001ba /lib/x86_64-linux-gnu/libc-2.19.so
+            // [  6] 0x00007fa79cdab000 0x00007fa79cdad000 0x00000000000001be /lib/x86_64-linux-gnu/libc-2.19.so
+            // [  7] 0x00007fa79cdb2000 0x00007fa79cdd5000 0x0000000000000000 /lib/x86_64-linux-gnu/ld-2.19.so
+            // [  8] 0x00007fa79cfd4000 0x00007fa79cfd5000 0x0000000000000022 /lib/x86_64-linux-gnu/ld-2.19.so
+            // [  9] 0x00007fa79cfd5000 0x00007fa79cfd6000 0x0000000000000023 /lib/x86_64-linux-gnu/ld-2.19.so
+            if (note.n_type == NT_FILE)
+            {
+                uint64_t count = data.GetU64(&offset);
+                offset += 8 + 3*8*count; // Skip page size and all start/end/file_ofs
+                for (size_t i=0; i<count; ++i)
+                {
+                    llvm::StringRef path(data.GetCStr(&offset));
+                    if (path.startswith("/lib/x86_64-linux-gnu"))
+                    {
+                        arch_spec.GetTriple().setOS(llvm::Triple::OSType::Linux);
+                        break;
+                    }
+                }
+            }
+        }
 
-        if (!processed)
-            offset += llvm::RoundUpToAlignment(note.n_descsz, 4);
+        // Calculate the offset of the next note just in case "offset" has been used
+        // to poke at the contents of the note data
+        offset = note_offset + note.GetByteSize();
     }
 
     return error;
@@ -1496,8 +1599,8 @@ ObjectFileELF::GetSectionHeaderInfo(SectionHeaderColl &section_headers,
                  I != section_headers.end(); ++I)
             {
                 static ConstString g_sect_name_gnu_debuglink (".gnu_debuglink");
-                const ELFSectionHeaderInfo &header = *I;
-                const uint64_t section_size = header.sh_type == SHT_NOBITS ? 0 : header.sh_size;
+                const ELFSectionHeaderInfo &sheader = *I;
+                const uint64_t section_size = sheader.sh_type == SHT_NOBITS ? 0 : sheader.sh_size;
                 ConstString name(shstr_data.PeekCStr(I->sh_name));
 
                 I->section_name = name;
@@ -1505,23 +1608,33 @@ ObjectFileELF::GetSectionHeaderInfo(SectionHeaderColl &section_headers,
                 if (arch_spec.GetMachine() == llvm::Triple::mips || arch_spec.GetMachine() == llvm::Triple::mipsel
                     || arch_spec.GetMachine() == llvm::Triple::mips64 || arch_spec.GetMachine() == llvm::Triple::mips64el)
                 {
-                    if (header.sh_type == SHT_MIPS_ABIFLAGS)
+                    uint32_t arch_flags = arch_spec.GetFlags ();
+                    DataExtractor data;
+                    if (sheader.sh_type == SHT_MIPS_ABIFLAGS)
                     {
-                        DataExtractor data;
-                        if (section_size && (data.SetData (object_data, header.sh_offset, section_size) == section_size))
+                        
+                        if (section_size && (data.SetData (object_data, sheader.sh_offset, section_size) == section_size))
                         {
                             lldb::offset_t ase_offset = 12; // MIPS ABI Flags Version: 0
-                            uint32_t arch_flags = arch_spec.GetFlags ();
                             arch_flags |= data.GetU32 (&ase_offset);
-                            arch_spec.SetFlags (arch_flags);
                         }
                     }
+                    // Settings appropriate ArchSpec ABI Flags
+                    if (header.e_flags & llvm::ELF::EF_MIPS_ABI2)
+                    {   
+                        arch_flags |= lldb_private::ArchSpec::eMIPSABI_N32;
+                    }
+                    else if (header.e_flags & llvm::ELF::EF_MIPS_ABI_O32)
+                    {
+                         arch_flags |= lldb_private::ArchSpec::eMIPSABI_O32;       
+                    }
+                    arch_spec.SetFlags (arch_flags);
                 }
 
                 if (name == g_sect_name_gnu_debuglink)
                 {
                     DataExtractor data;
-                    if (section_size && (data.SetData (object_data, header.sh_offset, section_size) == section_size))
+                    if (section_size && (data.SetData (object_data, sheader.sh_offset, section_size) == section_size))
                     {
                         lldb::offset_t gnu_debuglink_offset = 0;
                         gnu_debuglink_file = data.GetCStr (&gnu_debuglink_offset);
@@ -1531,7 +1644,7 @@ ObjectFileELF::GetSectionHeaderInfo(SectionHeaderColl &section_headers,
                 }
 
                 // Process ELF note section entries.
-                bool is_note_header = (header.sh_type == SHT_NOTE);
+                bool is_note_header = (sheader.sh_type == SHT_NOTE);
 
                 // The section header ".note.android.ident" is stored as a
                 // PROGBITS type header but it is actually a note header.
@@ -1543,7 +1656,7 @@ ObjectFileELF::GetSectionHeaderInfo(SectionHeaderColl &section_headers,
                 {
                     // Allow notes to refine module info.
                     DataExtractor data;
-                    if (section_size && (data.SetData (object_data, header.sh_offset, section_size) == section_size))
+                    if (section_size && (data.SetData (object_data, sheader.sh_offset, section_size) == section_size))
                     {
                         Error error = RefineModuleDetailsFromNote (data, arch_spec, uuid);
                         if (error.Fail ())
@@ -1555,6 +1668,12 @@ ObjectFileELF::GetSectionHeaderInfo(SectionHeaderColl &section_headers,
                 }
             }
 
+            // Make any unknown triple components to be unspecified unknowns.
+            if (arch_spec.GetTriple().getVendor() == llvm::Triple::UnknownVendor)
+                arch_spec.GetTriple().setVendorName (llvm::StringRef());
+            if (arch_spec.GetTriple().getOS() == llvm::Triple::UnknownOS)
+                arch_spec.GetTriple().setOSName (llvm::StringRef());
+
             return section_headers.size();
         }
     }
@@ -1651,17 +1770,30 @@ ObjectFileELF::CreateSections(SectionList &unified_section_list)
             static ConstString g_sect_name_tdata (".tdata");
             static ConstString g_sect_name_tbss (".tbss");
             static ConstString g_sect_name_dwarf_debug_abbrev (".debug_abbrev");
+            static ConstString g_sect_name_dwarf_debug_addr (".debug_addr");
             static ConstString g_sect_name_dwarf_debug_aranges (".debug_aranges");
             static ConstString g_sect_name_dwarf_debug_frame (".debug_frame");
             static ConstString g_sect_name_dwarf_debug_info (".debug_info");
             static ConstString g_sect_name_dwarf_debug_line (".debug_line");
             static ConstString g_sect_name_dwarf_debug_loc (".debug_loc");
             static ConstString g_sect_name_dwarf_debug_macinfo (".debug_macinfo");
+            static ConstString g_sect_name_dwarf_debug_macro (".debug_macro");
             static ConstString g_sect_name_dwarf_debug_pubnames (".debug_pubnames");
             static ConstString g_sect_name_dwarf_debug_pubtypes (".debug_pubtypes");
             static ConstString g_sect_name_dwarf_debug_ranges (".debug_ranges");
             static ConstString g_sect_name_dwarf_debug_str (".debug_str");
+            static ConstString g_sect_name_dwarf_debug_str_offsets (".debug_str_offsets");
+            static ConstString g_sect_name_dwarf_debug_abbrev_dwo (".debug_abbrev.dwo");
+            static ConstString g_sect_name_dwarf_debug_info_dwo (".debug_info.dwo");
+            static ConstString g_sect_name_dwarf_debug_line_dwo (".debug_line.dwo");
+            static ConstString g_sect_name_dwarf_debug_macro_dwo (".debug_macro.dwo");
+            static ConstString g_sect_name_dwarf_debug_loc_dwo (".debug_loc.dwo");
+            static ConstString g_sect_name_dwarf_debug_str_dwo (".debug_str.dwo");
+            static ConstString g_sect_name_dwarf_debug_str_offsets_dwo (".debug_str_offsets.dwo");
             static ConstString g_sect_name_eh_frame (".eh_frame");
+            static ConstString g_sect_name_arm_exidx (".ARM.exidx");
+            static ConstString g_sect_name_arm_extab (".ARM.extab");
+            static ConstString g_sect_name_go_symtab (".gosymtab");
 
             SectionType sect_type = eSectionTypeOther;
 
@@ -1694,18 +1826,31 @@ ObjectFileELF::CreateSections(SectionList &unified_section_list)
             // MISSING? .gnu_debugdata - "mini debuginfo / MiniDebugInfo" section, http://sourceware.org/gdb/onlinedocs/gdb/MiniDebugInfo.html
             // MISSING? .debug-index - http://src.chromium.org/viewvc/chrome/trunk/src/build/gdb-add-index?pathrev=144644
             // MISSING? .debug_types - Type descriptions from DWARF 4? See http://gcc.gnu.org/wiki/DwarfSeparateTypeInfo
-            else if (name == g_sect_name_dwarf_debug_abbrev)    sect_type = eSectionTypeDWARFDebugAbbrev;
-            else if (name == g_sect_name_dwarf_debug_aranges)   sect_type = eSectionTypeDWARFDebugAranges;
-            else if (name == g_sect_name_dwarf_debug_frame)     sect_type = eSectionTypeDWARFDebugFrame;
-            else if (name == g_sect_name_dwarf_debug_info)      sect_type = eSectionTypeDWARFDebugInfo;
-            else if (name == g_sect_name_dwarf_debug_line)      sect_type = eSectionTypeDWARFDebugLine;
-            else if (name == g_sect_name_dwarf_debug_loc)       sect_type = eSectionTypeDWARFDebugLoc;
-            else if (name == g_sect_name_dwarf_debug_macinfo)   sect_type = eSectionTypeDWARFDebugMacInfo;
-            else if (name == g_sect_name_dwarf_debug_pubnames)  sect_type = eSectionTypeDWARFDebugPubNames;
-            else if (name == g_sect_name_dwarf_debug_pubtypes)  sect_type = eSectionTypeDWARFDebugPubTypes;
-            else if (name == g_sect_name_dwarf_debug_ranges)    sect_type = eSectionTypeDWARFDebugRanges;
-            else if (name == g_sect_name_dwarf_debug_str)       sect_type = eSectionTypeDWARFDebugStr;
-            else if (name == g_sect_name_eh_frame)              sect_type = eSectionTypeEHFrame;
+            else if (name == g_sect_name_dwarf_debug_abbrev)          sect_type = eSectionTypeDWARFDebugAbbrev;
+            else if (name == g_sect_name_dwarf_debug_addr)            sect_type = eSectionTypeDWARFDebugAddr;
+            else if (name == g_sect_name_dwarf_debug_aranges)         sect_type = eSectionTypeDWARFDebugAranges;
+            else if (name == g_sect_name_dwarf_debug_frame)           sect_type = eSectionTypeDWARFDebugFrame;
+            else if (name == g_sect_name_dwarf_debug_info)            sect_type = eSectionTypeDWARFDebugInfo;
+            else if (name == g_sect_name_dwarf_debug_line)            sect_type = eSectionTypeDWARFDebugLine;
+            else if (name == g_sect_name_dwarf_debug_loc)             sect_type = eSectionTypeDWARFDebugLoc;
+            else if (name == g_sect_name_dwarf_debug_macinfo)         sect_type = eSectionTypeDWARFDebugMacInfo;
+            else if (name == g_sect_name_dwarf_debug_macro)           sect_type = eSectionTypeDWARFDebugMacro;
+            else if (name == g_sect_name_dwarf_debug_pubnames)        sect_type = eSectionTypeDWARFDebugPubNames;
+            else if (name == g_sect_name_dwarf_debug_pubtypes)        sect_type = eSectionTypeDWARFDebugPubTypes;
+            else if (name == g_sect_name_dwarf_debug_ranges)          sect_type = eSectionTypeDWARFDebugRanges;
+            else if (name == g_sect_name_dwarf_debug_str)             sect_type = eSectionTypeDWARFDebugStr;
+            else if (name == g_sect_name_dwarf_debug_str_offsets)     sect_type = eSectionTypeDWARFDebugStrOffsets;
+            else if (name == g_sect_name_dwarf_debug_abbrev_dwo)      sect_type = eSectionTypeDWARFDebugAbbrev;
+            else if (name == g_sect_name_dwarf_debug_info_dwo)        sect_type = eSectionTypeDWARFDebugInfo;
+            else if (name == g_sect_name_dwarf_debug_line_dwo)        sect_type = eSectionTypeDWARFDebugLine;
+            else if (name == g_sect_name_dwarf_debug_macro_dwo)       sect_type = eSectionTypeDWARFDebugMacro;
+            else if (name == g_sect_name_dwarf_debug_loc_dwo)         sect_type = eSectionTypeDWARFDebugLoc;
+            else if (name == g_sect_name_dwarf_debug_str_dwo)         sect_type = eSectionTypeDWARFDebugStr;
+            else if (name == g_sect_name_dwarf_debug_str_offsets_dwo) sect_type = eSectionTypeDWARFDebugStrOffsets;
+            else if (name == g_sect_name_eh_frame)                    sect_type = eSectionTypeEHFrame;
+            else if (name == g_sect_name_arm_exidx)                   sect_type = eSectionTypeARMexidx;
+            else if (name == g_sect_name_arm_extab)                   sect_type = eSectionTypeARMextab;
+            else if (name == g_sect_name_go_symtab)                   sect_type = eSectionTypeGoSymtab;
 
             switch (header.sh_type)
             {
@@ -1731,7 +1876,7 @@ ObjectFileELF::CreateSections(SectionList &unified_section_list)
             if (eSectionTypeOther == sect_type)
             {
                 // the kalimba toolchain assumes that ELF section names are free-form. It does
-                // supports linkscripts which (can) give rise to various arbitarily named
+                // support linkscripts which (can) give rise to various arbitrarily named
                 // sections being "Code" or "Data". 
                 sect_type = kalimbaSectionType(m_header, header);
             }
@@ -1770,17 +1915,19 @@ ObjectFileELF::CreateSections(SectionList &unified_section_list)
         {
             static const SectionType g_sections[] =
             {
-                eSectionTypeDWARFDebugAranges,
-                eSectionTypeDWARFDebugInfo,
                 eSectionTypeDWARFDebugAbbrev,
+                eSectionTypeDWARFDebugAddr,
+                eSectionTypeDWARFDebugAranges,
                 eSectionTypeDWARFDebugFrame,
+                eSectionTypeDWARFDebugInfo,
                 eSectionTypeDWARFDebugLine,
-                eSectionTypeDWARFDebugStr,
                 eSectionTypeDWARFDebugLoc,
                 eSectionTypeDWARFDebugMacInfo,
                 eSectionTypeDWARFDebugPubNames,
                 eSectionTypeDWARFDebugPubTypes,
                 eSectionTypeDWARFDebugRanges,
+                eSectionTypeDWARFDebugStr,
+                eSectionTypeDWARFDebugStrOffsets,
                 eSectionTypeELFSymbolTable,
             };
             SectionList *elf_section_list = m_sections_ap.get();
@@ -1805,6 +1952,29 @@ ObjectFileELF::CreateSections(SectionList &unified_section_list)
     }
 }
 
+// Find the arm/aarch64 mapping symbol character in the given symbol name. Mapping symbols have the
+// form of "$<char>[.<any>]*". Additionally we recognize cases when the mapping symbol prefixed by
+// an arbitrary string because if a symbol prefix added to each symbol in the object file with
+// objcopy then the mapping symbols are also prefixed.
+static char
+FindArmAarch64MappingSymbol(const char* symbol_name)
+{
+    if (!symbol_name)
+        return '\0';
+
+    const char* dollar_pos = ::strchr(symbol_name, '$');
+    if (!dollar_pos || dollar_pos[1] == '\0')
+        return '\0';
+
+    if (dollar_pos[2] == '\0' || dollar_pos[2] == '.')
+        return dollar_pos[1];
+    return '\0';
+}
+
+#define STO_MIPS_ISA            (3 << 6)
+#define STO_MICROMIPS           (2 << 6)
+#define IS_MICROMIPS(ST_OTHER)  (((ST_OTHER) & STO_MIPS_ISA) == STO_MICROMIPS)
+
 // private
 unsigned
 ObjectFileELF::ParseSymbols (Symtab *symtab,
@@ -1840,6 +2010,13 @@ ObjectFileELF::ParseSymbols (Symtab *symtab,
     // makes it highly unlikely that this will collide with anything else.
     bool skip_oatdata_oatexec = m_file.GetFilename() == ConstString("system@framework@boot.oat");
 
+    ArchSpec arch;
+    GetArchitecture(arch);
+
+    // Local cache to avoid doing a FindSectionByName for each symbol. The "const char*" key must
+    // came from a ConstString object so they can be compared by pointer
+    std::unordered_map<const char*, lldb::SectionSP> section_name_to_section;
+
     unsigned i;
     for (i = 0; i < num_symbols; ++i)
     {
@@ -1945,64 +2122,58 @@ ObjectFileELF::ParseSymbols (Symtab *symtab,
         int64_t symbol_value_offset = 0;
         uint32_t additional_flags = 0;
 
-        ArchSpec arch;
-        if (GetArchitecture(arch))
+        if (arch.IsValid())
         {
             if (arch.GetMachine() == llvm::Triple::arm)
             {
-                if (symbol.getBinding() == STB_LOCAL && symbol_name && symbol_name[0] == '$')
+                if (symbol.getBinding() == STB_LOCAL)
                 {
-                    // These are reserved for the specification (e.g.: mapping
-                    // symbols). We don't want to add them to the symbol table.
-
+                    char mapping_symbol = FindArmAarch64MappingSymbol(symbol_name);
                     if (symbol_type == eSymbolTypeCode)
                     {
-                        llvm::StringRef symbol_name_ref(symbol_name);
-                        if (symbol_name_ref == "$a" || symbol_name_ref.startswith("$a."))
-                        {
-                            // $a[.<any>]* - marks an ARM instruction sequence
-                            m_address_class_map[symbol.st_value] = eAddressClassCode;
-                        }
-                        else if (symbol_name_ref == "$b" || symbol_name_ref.startswith("$b.") ||
-                                 symbol_name_ref == "$t" || symbol_name_ref.startswith("$t."))
+                        switch (mapping_symbol)
                         {
-                            // $b[.<any>]* - marks a THUMB BL instruction sequence
-                            // $t[.<any>]* - marks a THUMB instruction sequence
-                            m_address_class_map[symbol.st_value] = eAddressClassCodeAlternateISA;
-                        }
-                        else if (symbol_name_ref == "$d" || symbol_name_ref.startswith("$d."))
-                        {
-                            // $d[.<any>]* - marks a data item sequence (e.g. lit pool)
-                            m_address_class_map[symbol.st_value] = eAddressClassData;
+                            case 'a':
+                                // $a[.<any>]* - marks an ARM instruction sequence
+                                m_address_class_map[symbol.st_value] = eAddressClassCode;
+                                break;
+                            case 'b':
+                            case 't':
+                                // $b[.<any>]* - marks a THUMB BL instruction sequence
+                                // $t[.<any>]* - marks a THUMB instruction sequence
+                                m_address_class_map[symbol.st_value] = eAddressClassCodeAlternateISA;
+                                break;
+                            case 'd':
+                                // $d[.<any>]* - marks a data item sequence (e.g. lit pool)
+                                m_address_class_map[symbol.st_value] = eAddressClassData;
+                                break;
                         }
                     }
-
-                    continue;
+                    if (mapping_symbol)
+                        continue;
                 }
             }
             else if (arch.GetMachine() == llvm::Triple::aarch64)
             {
-                if (symbol.getBinding() == STB_LOCAL && symbol_name && symbol_name[0] == '$')
+                if (symbol.getBinding() == STB_LOCAL)
                 {
-                    // These are reserved for the specification (e.g.: mapping
-                    // symbols). We don't want to add them to the symbol table.
-
+                    char mapping_symbol = FindArmAarch64MappingSymbol(symbol_name);
                     if (symbol_type == eSymbolTypeCode)
                     {
-                        llvm::StringRef symbol_name_ref(symbol_name);
-                        if (symbol_name_ref == "$x" || symbol_name_ref.startswith("$x."))
+                        switch (mapping_symbol)
                         {
-                            // $x[.<any>]* - marks an A64 instruction sequence
-                            m_address_class_map[symbol.st_value] = eAddressClassCode;
-                        }
-                        else if (symbol_name_ref == "$d" || symbol_name_ref.startswith("$d."))
-                        {
-                            // $d[.<any>]* - marks a data item sequence (e.g. lit pool)
-                            m_address_class_map[symbol.st_value] = eAddressClassData;
+                            case 'x':
+                                // $x[.<any>]* - marks an A64 instruction sequence
+                                m_address_class_map[symbol.st_value] = eAddressClassCode;
+                                break;
+                            case 'd':
+                                // $d[.<any>]* - marks a data item sequence (e.g. lit pool)
+                                m_address_class_map[symbol.st_value] = eAddressClassData;
+                                break;
                         }
                     }
-
-                    continue;
+                    if (mapping_symbol)
+                        continue;
                 }
             }
 
@@ -2029,11 +2200,46 @@ ObjectFileELF::ParseSymbols (Symtab *symtab,
                     }
                 }
             }
+
+            /*
+             * MIPS:
+             * The bit #0 of an address is used for ISA mode (1 for microMIPS, 0 for MIPS).
+             * This allows processer to switch between microMIPS and MIPS without any need
+             * for special mode-control register. However, apart from .debug_line, none of
+             * the ELF/DWARF sections set the ISA bit (for symbol or section). Use st_other
+             * flag to check whether the symbol is microMIPS and then set the address class
+             * accordingly.
+            */
+            const llvm::Triple::ArchType llvm_arch = arch.GetMachine();
+            if (llvm_arch == llvm::Triple::mips || llvm_arch == llvm::Triple::mipsel
+                || llvm_arch == llvm::Triple::mips64 || llvm_arch == llvm::Triple::mips64el)
+            {
+                if (IS_MICROMIPS(symbol.st_other))
+                    m_address_class_map[symbol.st_value] = eAddressClassCodeAlternateISA;
+                else if ((symbol.st_value & 1) && (symbol_type == eSymbolTypeCode))
+                {
+                    symbol.st_value = symbol.st_value & (~1ull);
+                    m_address_class_map[symbol.st_value] = eAddressClassCodeAlternateISA;
+                }
+                else
+                {
+                    if (symbol_type == eSymbolTypeCode)
+                        m_address_class_map[symbol.st_value] = eAddressClassCode;
+                    else if (symbol_type == eSymbolTypeData)
+                        m_address_class_map[symbol.st_value] = eAddressClassData;
+                    else
+                        m_address_class_map[symbol.st_value] = eAddressClassUnknown;
+                }
+            }
         }
 
-        // If the symbol section we've found has no data (SHT_NOBITS), then check the module section
-        // list. This can happen if we're parsing the debug file and it has no .text section, for example.
-        if (symbol_section_sp && (symbol_section_sp->GetFileSize() == 0))
+        // symbol_value_offset may contain 0 for ARM symbols or -1 for
+        // THUMB symbols. See above for more details.
+        uint64_t symbol_value = symbol.st_value + symbol_value_offset;
+        if (symbol_section_sp && CalculateType() != ObjectFile::Type::eTypeObjectFile)
+            symbol_value -= symbol_section_sp->GetFileAddress();
+
+        if (symbol_section_sp)
         {
             ModuleSP module_sp(GetModule());
             if (module_sp)
@@ -2042,20 +2248,17 @@ ObjectFileELF::ParseSymbols (Symtab *symtab,
                 if (module_section_list && module_section_list != section_list)
                 {
                     const ConstString &sect_name = symbol_section_sp->GetName();
-                    lldb::SectionSP section_sp (module_section_list->FindSectionByName (sect_name));
-                    if (section_sp && section_sp->GetFileSize())
-                    {
-                        symbol_section_sp = section_sp;
-                    }
+                    auto section_it = section_name_to_section.find(sect_name.GetCString());
+                    if (section_it == section_name_to_section.end())
+                        section_it = section_name_to_section.emplace(
+                            sect_name.GetCString(),
+                            module_section_list->FindSectionByName (sect_name)).first;
+                    if (section_it->second && section_it->second->GetFileSize())
+                        symbol_section_sp = section_it->second;
                 }
             }
         }
 
-        // symbol_value_offset may contain 0 for ARM symbols or -1 for
-        // THUMB symbols. See above for more details.
-        uint64_t symbol_value = symbol.st_value + symbol_value_offset;
-        if (symbol_section_sp && CalculateType() != ObjectFile::Type::eTypeObjectFile)
-            symbol_value -= symbol_section_sp->GetFileAddress();
         bool is_global = symbol.getBinding() == STB_GLOBAL;
         uint32_t flags = symbol.st_other << 8 | symbol.st_info | additional_flags;
         bool is_mangled = symbol_name ? (symbol_name[0] == '_' && symbol_name[1] == 'Z') : false;
@@ -2069,7 +2272,7 @@ ObjectFileELF::ParseSymbols (Symtab *symtab,
         Mangled mangled(ConstString(symbol_bare), is_mangled);
 
         // Now append the suffix back to mangled and unmangled names. Only do it if the
-        // demangling was sucessful (string is not empty).
+        // demangling was successful (string is not empty).
         if (has_suffix)
         {
             llvm::StringRef suffix = symbol_ref.substr(version_pos);
@@ -2221,7 +2424,7 @@ ObjectFileELF::PLTRelocationType()
 }
 
 // Returns the size of the normal plt entries and the offset of the first normal plt entry. The
-// 0th entry in the plt table is ususally a resolution entry which have different size in some
+// 0th entry in the plt table is usually a resolution entry which have different size in some
 // architectures then the rest of the plt entries.
 static std::pair<uint64_t, uint64_t>
 GetPltEntrySizeAndOffset(const ELFSectionHeader* rel_hdr, const ELFSectionHeader* plt_hdr)
@@ -2237,8 +2440,8 @@ GetPltEntrySizeAndOffset(const ELFSectionHeader* rel_hdr, const ELFSectionHeader
     {
         // The linker haven't set the plt_hdr->sh_entsize field. Try to guess the size of the plt
         // entries based on the number of entries and the size of the plt section with the
-        // asumption that the size of the 0th entry is at least as big as the size of the normal
-        // entries and it isn't mutch bigger then that.
+        // assumption that the size of the 0th entry is at least as big as the size of the normal
+        // entries and it isn't much bigger then that.
         if (plt_hdr->sh_addralign)
             plt_entsize = plt_hdr->sh_size / plt_hdr->sh_addralign / (num_relocations + 1) * plt_hdr->sh_addralign;
         else
@@ -2563,8 +2766,6 @@ ObjectFileELF::GetSymtab()
         uint64_t symbol_id = 0;
         lldb_private::Mutex::Locker locker(module_sp->GetMutex());
 
-        m_symtab_ap.reset(new Symtab(this));
-
         // Sharable objects and dynamic executables usually have 2 distinct symbol
         // tables, one named ".symtab", and the other ".dynsym". The dynsym is a smaller
         // version of the symtab that only contains global symbols. The information found
@@ -2578,7 +2779,10 @@ ObjectFileELF::GetSymtab()
             symtab = section_list->FindSectionByType (eSectionTypeELFDynamicSymbols, true).get();
         }
         if (symtab)
+        {
+            m_symtab_ap.reset(new Symtab(symtab->GetObjectFile()));
             symbol_id += ParseSymbolTable (m_symtab_ap.get(), symbol_id, symtab);
+        }
 
         // DT_JMPREL
         //      If present, this entry's d_ptr member holds the address of relocation
@@ -2598,10 +2802,19 @@ ObjectFileELF::GetSymtab()
                 user_id_t reloc_id = reloc_section->GetID();
                 const ELFSectionHeaderInfo *reloc_header = GetSectionHeaderByIndex(reloc_id);
                 assert(reloc_header);
+                
+                if (m_symtab_ap == nullptr)
+                    m_symtab_ap.reset(new Symtab(reloc_section->GetObjectFile()));
 
                 ParseTrampolineSymbols (m_symtab_ap.get(), symbol_id, reloc_header, reloc_id);
             }
         }
+        
+        // If we still don't have any symtab then create an empty instance to avoid do the section
+        // lookup next time.
+        if (m_symtab_ap == nullptr)
+            m_symtab_ap.reset(new Symtab(this));
+            
         m_symtab_ap->CalculateSymbolSizes();
     }
 
@@ -3000,6 +3213,27 @@ ObjectFileELF::GetArchitecture (ArchSpec &arch)
         ParseSectionHeaders();
     }
 
+    if (CalculateType() == eTypeCoreFile && m_arch_spec.TripleOSIsUnspecifiedUnknown())
+    {
+        // Core files don't have section headers yet they have PT_NOTE program headers
+        // that might shed more light on the architecture
+        if (ParseProgramHeaders())
+        {
+            for (size_t i = 0, count = GetProgramHeaderCount(); i < count; ++i)
+            {
+                const elf::ELFProgramHeader* header = GetProgramHeaderByIndex(i);
+                if (header && header->p_type == PT_NOTE && header->p_offset != 0 && header->p_filesz > 0)
+                {
+                    DataExtractor data;
+                    if (data.SetData (m_data, header->p_offset, header->p_filesz) == header->p_filesz)
+                    {
+                        lldb_private::UUID uuid;
+                        RefineModuleDetailsFromNote (data, m_arch_spec, uuid);
+                    }
+                }
+            }
+        }
+    }
     arch = m_arch_spec;
     return true;
 }
diff --git a/source/Plugins/ObjectFile/ELF/ObjectFileELF.h b/source/Plugins/ObjectFile/ELF/ObjectFileELF.h
index 99088d166b12a..4b97f92c6c5c8 100644
--- a/source/Plugins/ObjectFile/ELF/ObjectFileELF.h
+++ b/source/Plugins/ObjectFile/ELF/ObjectFileELF.h
@@ -10,9 +10,14 @@
 #ifndef liblldb_ObjectFileELF_h_
 #define liblldb_ObjectFileELF_h_
 
+// C Includes
 #include <stdint.h>
+
+// C++ Includes
 #include <vector>
 
+// Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-private.h"
 #include "lldb/Host/FileSpec.h"
 #include "lldb/Symbol/ObjectFile.h"
@@ -47,6 +52,12 @@ struct ELFNote
     ///    True if the ELFRel entry was successfully read and false otherwise.
     bool
     Parse(const lldb_private::DataExtractor &data, lldb::offset_t *offset);
+
+    size_t
+    GetByteSize() const
+    {
+        return 12 + llvm::RoundUpToAlignment (n_namesz, 4) + llvm::RoundUpToAlignment (n_descsz, 4);
+    }
 };
 
 //------------------------------------------------------------------------------
@@ -59,6 +70,8 @@ class ObjectFileELF :
     public lldb_private::ObjectFile
 {
 public:
+    ~ObjectFileELF() override;
+
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
@@ -113,9 +126,6 @@ public:
     //------------------------------------------------------------------
     // ObjectFile Protocol.
     //------------------------------------------------------------------
-    virtual
-    ~ObjectFileELF();
-
     bool
     ParseHeader() override;
 
@@ -211,6 +221,7 @@ private:
     {
         lldb_private::ConstString section_name;
     };
+
     typedef std::vector<ELFSectionHeaderInfo>   SectionHeaderColl;
     typedef SectionHeaderColl::iterator         SectionHeaderCollIter;
     typedef SectionHeaderColl::const_iterator   SectionHeaderCollConstIter;
@@ -428,4 +439,4 @@ private:
     RefineModuleDetailsFromNote (lldb_private::DataExtractor &data, lldb_private::ArchSpec &arch_spec, lldb_private::UUID &uuid);
 };
 
-#endif // #ifndef liblldb_ObjectFileELF_h_
+#endif // liblldb_ObjectFileELF_h_
diff --git a/source/Plugins/ObjectFile/JIT/ObjectFileJIT.h b/source/Plugins/ObjectFile/JIT/ObjectFileJIT.h
index 47140f5bcaff2..39dbb3fb047b4 100644
--- a/source/Plugins/ObjectFile/JIT/ObjectFileJIT.h
+++ b/source/Plugins/ObjectFile/JIT/ObjectFileJIT.h
@@ -10,10 +10,13 @@
 #ifndef liblldb_ObjectFileJIT_h_
 #define liblldb_ObjectFileJIT_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Core/Address.h"
 #include "lldb/Symbol/ObjectFile.h"
 
-
 //----------------------------------------------------------------------
 // This class needs to be hidden as eventually belongs in a plugin that
 // will export the ObjectFile protocol
@@ -22,6 +25,11 @@ class ObjectFileJIT :
     public lldb_private::ObjectFile
 {
 public:
+    ObjectFileJIT(const lldb::ModuleSP &module_sp,
+                  const lldb::ObjectFileJITDelegateSP &delegate_sp);
+
+    ~ObjectFileJIT() override;
+
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
@@ -62,81 +70,77 @@ public:
     //------------------------------------------------------------------
     // Member Functions
     //------------------------------------------------------------------
-    ObjectFileJIT (const lldb::ModuleSP &module_sp,
-                   const lldb::ObjectFileJITDelegateSP &delegate_sp);
-    
-    virtual
-    ~ObjectFileJIT();
-
-    virtual bool
-    ParseHeader ();
+    bool
+    ParseHeader() override;
 
-    virtual bool
+    bool
     SetLoadAddress(lldb_private::Target &target,
                    lldb::addr_t value,
-                   bool value_is_offset);
+                   bool value_is_offset) override;
     
-    virtual lldb::ByteOrder
-    GetByteOrder () const;
+    lldb::ByteOrder
+    GetByteOrder() const override;
     
-    virtual bool
-    IsExecutable () const;
+    bool
+    IsExecutable() const override;
 
-    virtual uint32_t
-    GetAddressByteSize ()  const;
+    uint32_t
+    GetAddressByteSize() const override;
 
-    virtual lldb_private::Symtab *
-    GetSymtab();
+    lldb_private::Symtab *
+    GetSymtab() override;
 
-    virtual bool
-    IsStripped ();
+    bool
+    IsStripped() override;
     
-    virtual void
-    CreateSections (lldb_private::SectionList &unified_section_list);
+    void
+    CreateSections(lldb_private::SectionList &unified_section_list) override;
 
-    virtual void
-    Dump (lldb_private::Stream *s);
+    void
+    Dump(lldb_private::Stream *s) override;
 
-    virtual bool
-    GetArchitecture (lldb_private::ArchSpec &arch);
+    bool
+    GetArchitecture(lldb_private::ArchSpec &arch) override;
 
-    virtual bool
-    GetUUID (lldb_private::UUID* uuid);
+    bool
+    GetUUID(lldb_private::UUID* uuid) override;
 
-    virtual uint32_t
-    GetDependentModules (lldb_private::FileSpecList& files);
+    uint32_t
+    GetDependentModules(lldb_private::FileSpecList& files) override;
+    
+    size_t
+    ReadSectionData(const lldb_private::Section *section,
+                    lldb::offset_t section_offset,
+                    void *dst,
+                    size_t dst_len) const override;
+
+    size_t
+    ReadSectionData(const lldb_private::Section *section,
+                    lldb_private::DataExtractor& section_data) const override;
     
-    virtual size_t
-    ReadSectionData (const lldb_private::Section *section,
-                     lldb::offset_t section_offset,
-                     void *dst,
-                     size_t dst_len) const;
-    virtual size_t
-    ReadSectionData (const lldb_private::Section *section,
-                     lldb_private::DataExtractor& section_data) const;
+    lldb_private::Address
+    GetEntryPointAddress() override;
     
+    lldb_private::Address
+    GetHeaderAddress() override;
+    
+    ObjectFile::Type
+    CalculateType() override;
+    
+    ObjectFile::Strata
+    CalculateStrata() override;
+
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
 
-    virtual uint32_t
-    GetPluginVersion();
+    uint32_t
+    GetPluginVersion() override;
 
-    virtual lldb_private::Address
-    GetEntryPointAddress ();
-    
-    virtual lldb_private::Address
-    GetHeaderAddress ();
-    
-    virtual ObjectFile::Type
-    CalculateType();
-    
-    virtual ObjectFile::Strata
-    CalculateStrata();
 protected:
     lldb::ObjectFileJITDelegateWP m_delegate_wp;
 };
 
-#endif  // liblldb_ObjectFileJIT_h_
+#endif // liblldb_ObjectFileJIT_h_
diff --git a/source/Plugins/OperatingSystem/Go/OperatingSystemGo.cpp b/source/Plugins/OperatingSystem/Go/OperatingSystemGo.cpp
new file mode 100644
index 0000000000000..86c574f2776c2
--- /dev/null
+++ b/source/Plugins/OperatingSystem/Go/OperatingSystemGo.cpp
@@ -0,0 +1,559 @@
+//===-- OperatingSystemGo.cpp -----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+#include <unordered_map>
+
+// Other libraries and framework includes
+// Project includes
+#include "OperatingSystemGo.h"
+
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/Debugger.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Core/RegisterValue.h"
+#include "lldb/Core/Section.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Core/ValueObjectVariable.h"
+#include "lldb/Interpreter/CommandInterpreter.h"
+#include "lldb/Interpreter/OptionValueProperties.h"
+#include "lldb/Interpreter/Options.h"
+#include "lldb/Interpreter/OptionGroupBoolean.h"
+#include "lldb/Interpreter/OptionGroupUInt64.h"
+#include "lldb/Interpreter/Property.h"
+#include "lldb/Symbol/ObjectFile.h"
+#include "lldb/Symbol/Type.h"
+#include "lldb/Symbol/VariableList.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/StopInfo.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Target/ThreadList.h"
+#include "lldb/Target/Thread.h"
+#include "Plugins/Process/Utility/DynamicRegisterInfo.h"
+#include "Plugins/Process/Utility/RegisterContextMemory.h"
+#include "Plugins/Process/Utility/ThreadMemory.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+namespace
+{
+
+static PropertyDefinition g_properties[] = {{"enable", OptionValue::eTypeBoolean, true, true, nullptr, nullptr,
+                                             "Specify whether goroutines should be treated as threads."},
+                                            {NULL, OptionValue::eTypeInvalid, false, 0, NULL, NULL, NULL}};
+
+enum
+{
+    ePropertyEnableGoroutines,
+};
+
+class PluginProperties : public Properties
+{
+public:
+    PluginProperties()
+        : Properties()
+    {
+        m_collection_sp.reset(new OptionValueProperties(GetSettingName()));
+        m_collection_sp->Initialize(g_properties);
+    }
+
+    ~PluginProperties() override = default;
+
+    static ConstString
+    GetSettingName()
+    {
+        return OperatingSystemGo::GetPluginNameStatic();
+    }
+
+    bool
+    GetEnableGoroutines()
+    {
+        const uint32_t idx = ePropertyEnableGoroutines;
+        return m_collection_sp->GetPropertyAtIndexAsBoolean(NULL, idx, g_properties[idx].default_uint_value);
+    }
+
+    bool
+    SetEnableGoroutines(bool enable)
+    {
+        const uint32_t idx = ePropertyEnableGoroutines;
+        return m_collection_sp->SetPropertyAtIndexAsUInt64(NULL, idx, enable);
+    }
+};
+
+typedef std::shared_ptr<PluginProperties> OperatingSystemGoPropertiesSP;
+
+static const OperatingSystemGoPropertiesSP &
+GetGlobalPluginProperties()
+{
+    static OperatingSystemGoPropertiesSP g_settings_sp;
+    if (!g_settings_sp)
+        g_settings_sp.reset(new PluginProperties());
+    return g_settings_sp;
+}
+
+class RegisterContextGo : public RegisterContextMemory
+{
+public:
+    RegisterContextGo(lldb_private::Thread &thread, uint32_t concrete_frame_idx, DynamicRegisterInfo &reg_info,
+                      lldb::addr_t reg_data_addr)
+        : RegisterContextMemory(thread, concrete_frame_idx, reg_info, reg_data_addr)
+    {
+        const RegisterInfo *sp = reg_info.GetRegisterInfoAtIndex(
+            reg_info.ConvertRegisterKindToRegisterNumber(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP));
+        const RegisterInfo *pc = reg_info.GetRegisterInfoAtIndex(
+            reg_info.ConvertRegisterKindToRegisterNumber(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC));
+        size_t byte_size = std::max(sp->byte_offset + sp->byte_size, pc->byte_offset + pc->byte_size);
+
+        DataBufferSP reg_data_sp(new DataBufferHeap(byte_size, 0));
+        m_reg_data.SetData(reg_data_sp);
+    }
+
+    ~RegisterContextGo() override = default;
+
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &reg_value) override
+    {
+        switch (reg_info->kinds[eRegisterKindGeneric])
+        {
+            case LLDB_REGNUM_GENERIC_SP:
+            case LLDB_REGNUM_GENERIC_PC:
+                return RegisterContextMemory::ReadRegister(reg_info, reg_value);
+            default:
+                reg_value.SetValueToInvalid();
+                return true;
+        }
+    }
+
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &reg_value) override
+    {
+        switch (reg_info->kinds[eRegisterKindGeneric])
+        {
+            case LLDB_REGNUM_GENERIC_SP:
+            case LLDB_REGNUM_GENERIC_PC:
+                return RegisterContextMemory::WriteRegister(reg_info, reg_value);
+            default:
+                return false;
+        }
+    }
+
+private:
+    DISALLOW_COPY_AND_ASSIGN(RegisterContextGo);
+};
+
+} // anonymous namespace
+
+struct OperatingSystemGo::Goroutine
+{
+    uint64_t m_lostack;
+    uint64_t m_histack;
+    uint64_t m_goid;
+    addr_t m_gobuf;
+    uint32_t m_status;
+};
+
+void
+OperatingSystemGo::Initialize()
+{
+    PluginManager::RegisterPlugin(GetPluginNameStatic(), GetPluginDescriptionStatic(), CreateInstance,
+                                  DebuggerInitialize);
+}
+
+void
+OperatingSystemGo::DebuggerInitialize(Debugger &debugger)
+{
+    if (!PluginManager::GetSettingForOperatingSystemPlugin(debugger, PluginProperties::GetSettingName()))
+    {
+        const bool is_global_setting = true;
+        PluginManager::CreateSettingForOperatingSystemPlugin(
+            debugger, GetGlobalPluginProperties()->GetValueProperties(),
+            ConstString("Properties for the goroutine thread plug-in."), is_global_setting);
+    }
+}
+
+void
+OperatingSystemGo::Terminate()
+{
+    PluginManager::UnregisterPlugin(CreateInstance);
+}
+
+OperatingSystem *
+OperatingSystemGo::CreateInstance(Process *process, bool force)
+{
+    if (!force)
+    {
+        TargetSP target_sp = process->CalculateTarget();
+        if (!target_sp)
+            return nullptr;
+        ModuleList &module_list = target_sp->GetImages();
+        Mutex::Locker modules_locker(module_list.GetMutex());
+        const size_t num_modules = module_list.GetSize();
+        bool found_go_runtime = false;
+        for (size_t i = 0; i < num_modules; ++i)
+        {
+            Module *module = module_list.GetModulePointerAtIndexUnlocked(i);
+            const SectionList *section_list = module->GetSectionList();
+            if (section_list)
+            {
+                SectionSP section_sp(section_list->FindSectionByType(eSectionTypeGoSymtab, true));
+                if (section_sp)
+                {
+                    found_go_runtime = true;
+                    break;
+                }
+            }
+        }
+        if (!found_go_runtime)
+            return nullptr;
+    }
+    return new OperatingSystemGo(process);
+}
+
+OperatingSystemGo::OperatingSystemGo(lldb_private::Process *process)
+    : OperatingSystem(process)
+    , m_reginfo(new DynamicRegisterInfo)
+{
+}
+
+OperatingSystemGo::~OperatingSystemGo() = default;
+
+ConstString
+OperatingSystemGo::GetPluginNameStatic()
+{
+    static ConstString g_name("goroutines");
+    return g_name;
+}
+
+const char *
+OperatingSystemGo::GetPluginDescriptionStatic()
+{
+    return "Operating system plug-in that reads runtime data-structures for goroutines.";
+}
+
+bool
+OperatingSystemGo::Init(ThreadList &threads)
+{
+    if (threads.GetSize(false) < 1)
+        return false;
+    TargetSP target_sp = m_process->CalculateTarget();
+    if (!target_sp)
+        return false;
+    m_allg_sp = FindGlobal(target_sp, "runtime.allg");
+    m_allglen_sp = FindGlobal(target_sp, "runtime.allglen");
+
+    if (m_allg_sp && !m_allglen_sp)
+    {
+        StreamSP error_sp = target_sp->GetDebugger().GetAsyncErrorStream();
+        error_sp->Printf("Unsupported Go runtime version detected.");
+        return false;
+    }
+
+    if (!m_allg_sp)
+        return false;
+
+    RegisterContextSP real_registers_sp = threads.GetThreadAtIndex(0, false)->GetRegisterContext();
+
+    std::unordered_map<size_t, ConstString> register_sets;
+    for (size_t set_idx = 0; set_idx < real_registers_sp->GetRegisterSetCount(); ++set_idx)
+    {
+        const RegisterSet *set = real_registers_sp->GetRegisterSet(set_idx);
+        ConstString name(set->name);
+        for (size_t reg_idx = 0; reg_idx < set->num_registers; ++reg_idx)
+        {
+            register_sets[reg_idx] = name;
+        }
+    }
+    TypeSP gobuf_sp = FindType(target_sp, "runtime.gobuf");
+    if (!gobuf_sp)
+    {
+        Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OS));
+
+        if (log)
+            log->Printf("OperatingSystemGo unable to find struct Gobuf");
+        return false;
+    }
+    CompilerType gobuf_type(gobuf_sp->GetLayoutCompilerType());
+    for (size_t idx = 0; idx < real_registers_sp->GetRegisterCount(); ++idx)
+    {
+        RegisterInfo reg = *real_registers_sp->GetRegisterInfoAtIndex(idx);
+        int field_index = -1;
+        if (reg.kinds[eRegisterKindGeneric] == LLDB_REGNUM_GENERIC_SP)
+        {
+            field_index = 0;
+        }
+        else if (reg.kinds[eRegisterKindGeneric] == LLDB_REGNUM_GENERIC_PC)
+        {
+            field_index = 1;
+        }
+        if (field_index == -1)
+        {
+            reg.byte_offset = ~0;
+        }
+        else
+        {
+            std::string field_name;
+            uint64_t bit_offset = 0;
+            CompilerType field_type =
+                gobuf_type.GetFieldAtIndex(field_index, field_name, &bit_offset, nullptr, nullptr);
+            reg.byte_size = field_type.GetByteSize(nullptr);
+            reg.byte_offset = bit_offset / 8;
+        }
+        ConstString name(reg.name);
+        ConstString alt_name(reg.alt_name);
+        m_reginfo->AddRegister(reg, name, alt_name, register_sets[idx]);
+    }
+    return true;
+}
+
+//------------------------------------------------------------------
+// PluginInterface protocol
+//------------------------------------------------------------------
+ConstString
+OperatingSystemGo::GetPluginName()
+{
+    return GetPluginNameStatic();
+}
+
+uint32_t
+OperatingSystemGo::GetPluginVersion()
+{
+    return 1;
+}
+
+bool
+OperatingSystemGo::UpdateThreadList(ThreadList &old_thread_list, ThreadList &real_thread_list,
+                                    ThreadList &new_thread_list)
+{
+    new_thread_list = real_thread_list;
+    Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OS));
+
+    if (!(m_allg_sp || Init(real_thread_list)) || (m_allg_sp && !m_allglen_sp) ||
+        !GetGlobalPluginProperties()->GetEnableGoroutines())
+    {
+        return new_thread_list.GetSize(false) > 0;
+    }
+
+    if (log)
+        log->Printf("OperatingSystemGo::UpdateThreadList(%d, %d, %d) fetching thread data from Go for pid %" PRIu64,
+                    old_thread_list.GetSize(false), real_thread_list.GetSize(false), new_thread_list.GetSize(0),
+                    m_process->GetID());
+    uint64_t allglen = m_allglen_sp->GetValueAsUnsigned(0);
+    if (allglen == 0)
+    {
+        return new_thread_list.GetSize(false) > 0;
+    }
+    std::vector<Goroutine> goroutines;
+    // The threads that are in "new_thread_list" upon entry are the threads from the
+    // lldb_private::Process subclass, no memory threads will be in this list.
+
+    Error err;
+    for (uint64_t i = 0; i < allglen; ++i)
+    {
+        goroutines.push_back(CreateGoroutineAtIndex(i, err));
+        if (err.Fail())
+        {
+            err.PutToLog(log, "OperatingSystemGo::UpdateThreadList");
+            return new_thread_list.GetSize(false) > 0;
+        }
+    }
+    // Make a map so we can match goroutines with backing threads.
+    std::map<uint64_t, ThreadSP> stack_map;
+    for (uint32_t i = 0; i < real_thread_list.GetSize(false); ++i)
+    {
+        ThreadSP thread = real_thread_list.GetThreadAtIndex(i, false);
+        stack_map[thread->GetRegisterContext()->GetSP()] = thread;
+    }
+    for (const Goroutine &goroutine : goroutines)
+    {
+        if (0 /* Gidle */ == goroutine.m_status || 6 /* Gdead */ == goroutine.m_status)
+        {
+            continue;
+        }
+        ThreadSP memory_thread = old_thread_list.FindThreadByID(goroutine.m_goid, false);
+        if (memory_thread && IsOperatingSystemPluginThread(memory_thread) && memory_thread->IsValid())
+        {
+            memory_thread->ClearBackingThread();
+        }
+        else
+        {
+            memory_thread.reset(new ThreadMemory(*m_process, goroutine.m_goid, nullptr, nullptr, goroutine.m_gobuf));
+        }
+        // Search for the backing thread if the goroutine is running.
+        if (2 == (goroutine.m_status & 0xfff))
+        {
+            auto backing_it = stack_map.lower_bound(goroutine.m_lostack);
+            if (backing_it != stack_map.end())
+            {
+                if (goroutine.m_histack >= backing_it->first)
+                {
+                    if (log)
+                        log->Printf("OperatingSystemGo::UpdateThreadList found backing thread %" PRIx64 " (%" PRIx64
+                                    ") for thread %" PRIx64 "",
+                                    backing_it->second->GetID(), backing_it->second->GetProtocolID(),
+                                    memory_thread->GetID());
+                    memory_thread->SetBackingThread(backing_it->second);
+                    new_thread_list.RemoveThreadByID(backing_it->second->GetID(), false);
+                }
+            }
+        }
+        new_thread_list.AddThread(memory_thread);
+    }
+
+    return new_thread_list.GetSize(false) > 0;
+}
+
+void
+OperatingSystemGo::ThreadWasSelected(Thread *thread)
+{
+}
+
+RegisterContextSP
+OperatingSystemGo::CreateRegisterContextForThread(Thread *thread, addr_t reg_data_addr)
+{
+    RegisterContextSP reg_ctx_sp;
+    if (!thread)
+        return reg_ctx_sp;
+
+    if (!IsOperatingSystemPluginThread(thread->shared_from_this()))
+        return reg_ctx_sp;
+
+    reg_ctx_sp.reset(new RegisterContextGo(*thread, 0, *m_reginfo, reg_data_addr));
+    return reg_ctx_sp;
+}
+
+StopInfoSP
+OperatingSystemGo::CreateThreadStopReason(lldb_private::Thread *thread)
+{
+    StopInfoSP stop_info_sp;
+    return stop_info_sp;
+}
+
+lldb::ThreadSP
+OperatingSystemGo::CreateThread(lldb::tid_t tid, addr_t context)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OS));
+
+    if (log)
+        log->Printf("OperatingSystemGo::CreateThread (tid = 0x%" PRIx64 ", context = 0x%" PRIx64 ") not implemented",
+                    tid, context);
+
+    return ThreadSP();
+}
+
+ValueObjectSP
+OperatingSystemGo::FindGlobal(TargetSP target, const char *name)
+{
+    VariableList variable_list;
+    const bool append = true;
+
+    Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OS));
+
+    if (log)
+    {
+        log->Printf("exe: %s", target->GetExecutableModule()->GetSpecificationDescription().c_str());
+        log->Printf("modules: %zu", target->GetImages().GetSize());
+    }
+
+    uint32_t match_count = target->GetImages().FindGlobalVariables(ConstString(name), append, 1, variable_list);
+    if (match_count > 0)
+    {
+        ExecutionContextScope *exe_scope = target->GetProcessSP().get();
+        if (exe_scope == NULL)
+            exe_scope = target.get();
+        return ValueObjectVariable::Create(exe_scope, variable_list.GetVariableAtIndex(0));
+    }
+    return ValueObjectSP();
+}
+
+TypeSP
+OperatingSystemGo::FindType(TargetSP target_sp, const char *name)
+{
+    ConstString const_typename(name);
+    SymbolContext sc;
+    const bool exact_match = false;
+
+    const ModuleList &module_list = target_sp->GetImages();
+    size_t count = module_list.GetSize();
+    for (size_t idx = 0; idx < count; idx++)
+    {
+        ModuleSP module_sp(module_list.GetModuleAtIndex(idx));
+        if (module_sp)
+        {
+            TypeSP type_sp(module_sp->FindFirstType(sc, const_typename, exact_match));
+            if (type_sp)
+                return type_sp;
+        }
+    }
+    Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OS));
+
+    if (log)
+        log->Printf("OperatingSystemGo::FindType(%s): not found", name);
+    return TypeSP();
+}
+
+OperatingSystemGo::Goroutine
+OperatingSystemGo::CreateGoroutineAtIndex(uint64_t idx, Error &err)
+{
+    err.Clear();
+    Goroutine result;
+    ValueObjectSP g = m_allg_sp->GetSyntheticArrayMember(idx, true)->Dereference(err);
+    if (err.Fail())
+    {
+        return result;
+    }
+
+    ConstString name("goid");
+    ValueObjectSP val = g->GetChildMemberWithName(name, true);
+    bool success = false;
+    result.m_goid = val->GetValueAsUnsigned(0, &success);
+    if (!success)
+    {
+        err.SetErrorToGenericError();
+        err.SetErrorString("unable to read goid");
+        return result;
+    }
+    name.SetCString("atomicstatus");
+    val = g->GetChildMemberWithName(name, true);
+    result.m_status = (uint32_t)val->GetValueAsUnsigned(0, &success);
+    if (!success)
+    {
+        err.SetErrorToGenericError();
+        err.SetErrorString("unable to read atomicstatus");
+        return result;
+    }
+    name.SetCString("sched");
+    val = g->GetChildMemberWithName(name, true);
+    result.m_gobuf = val->GetAddressOf(false);
+    name.SetCString("stack");
+    val = g->GetChildMemberWithName(name, true);
+    name.SetCString("lo");
+    ValueObjectSP child = val->GetChildMemberWithName(name, true);
+    result.m_lostack = child->GetValueAsUnsigned(0, &success);
+    if (!success)
+    {
+        err.SetErrorToGenericError();
+        err.SetErrorString("unable to read stack.lo");
+        return result;
+    }
+    name.SetCString("hi");
+    child = val->GetChildMemberWithName(name, true);
+    result.m_histack = child->GetValueAsUnsigned(0, &success);
+    if (!success)
+    {
+        err.SetErrorToGenericError();
+        err.SetErrorString("unable to read stack.hi");
+        return result;
+    }
+    return result;
+}
diff --git a/source/Plugins/OperatingSystem/Go/OperatingSystemGo.h b/source/Plugins/OperatingSystem/Go/OperatingSystemGo.h
new file mode 100644
index 0000000000000..d3391d907dfe5
--- /dev/null
+++ b/source/Plugins/OperatingSystem/Go/OperatingSystemGo.h
@@ -0,0 +1,87 @@
+//===-- OperatingSystemGo.h -------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _liblldb_OperatingSystemGo_h_
+#define _liblldb_OperatingSystemGo_h_
+
+// C Includes
+// C++ Includes
+#include <memory>
+
+// Other libraries and framework includes
+// Project includes
+#include "lldb/Target/OperatingSystem.h"
+
+class DynamicRegisterInfo;
+
+class OperatingSystemGo : public lldb_private::OperatingSystem
+{
+public:
+    OperatingSystemGo(lldb_private::Process *process);
+
+    ~OperatingSystemGo() override;
+
+    //------------------------------------------------------------------
+    // Static Functions
+    //------------------------------------------------------------------
+    static lldb_private::OperatingSystem *CreateInstance(lldb_private::Process *process, bool force);
+
+    static void Initialize();
+
+    static void DebuggerInitialize(lldb_private::Debugger &debugger);
+
+    static void Terminate();
+
+    static lldb_private::ConstString GetPluginNameStatic();
+
+    static const char *GetPluginDescriptionStatic();
+
+    //------------------------------------------------------------------
+    // lldb_private::PluginInterface Methods
+    //------------------------------------------------------------------
+    lldb_private::ConstString GetPluginName() override;
+
+    uint32_t GetPluginVersion() override;
+
+    //------------------------------------------------------------------
+    // lldb_private::OperatingSystem Methods
+    //------------------------------------------------------------------
+    bool UpdateThreadList(lldb_private::ThreadList &old_thread_list,
+                          lldb_private::ThreadList &real_thread_list,
+                          lldb_private::ThreadList &new_thread_list) override;
+
+    void ThreadWasSelected(lldb_private::Thread *thread) override;
+
+    lldb::RegisterContextSP CreateRegisterContextForThread(lldb_private::Thread *thread,
+                                                           lldb::addr_t reg_data_addr) override;
+
+    lldb::StopInfoSP CreateThreadStopReason(lldb_private::Thread *thread) override;
+
+    //------------------------------------------------------------------
+    // Method for lazy creation of threads on demand
+    //------------------------------------------------------------------
+    lldb::ThreadSP CreateThread(lldb::tid_t tid, lldb::addr_t context) override;
+
+private:
+    struct Goroutine;
+
+    static lldb::ValueObjectSP FindGlobal(lldb::TargetSP target, const char *name);
+
+    static lldb::TypeSP FindType(lldb::TargetSP target_sp, const char *name);
+
+    bool Init(lldb_private::ThreadList &threads);
+
+    Goroutine CreateGoroutineAtIndex(uint64_t idx, lldb_private::Error &err);
+
+    std::unique_ptr<DynamicRegisterInfo> m_reginfo;
+    lldb::ValueObjectSP m_allg_sp;
+    lldb::ValueObjectSP m_allglen_sp;
+};
+
+#endif // liblldb_OperatingSystemGo_h_
diff --git a/source/Plugins/OperatingSystem/Python/OperatingSystemPython.cpp b/source/Plugins/OperatingSystem/Python/OperatingSystemPython.cpp
index e744d13deec1a..a556b0e84e83b 100644
--- a/source/Plugins/OperatingSystem/Python/OperatingSystemPython.cpp
+++ b/source/Plugins/OperatingSystem/Python/OperatingSystemPython.cpp
@@ -24,7 +24,6 @@
 #include "lldb/Core/ValueObjectVariable.h"
 #include "lldb/Interpreter/CommandInterpreter.h"
 #include "lldb/Interpreter/ScriptInterpreter.h"
-#include "lldb/Symbol/ClangNamespaceDecl.h"
 #include "lldb/Symbol/ObjectFile.h"
 #include "lldb/Symbol/VariableList.h"
 #include "lldb/Target/Process.h"
@@ -43,9 +42,7 @@ using namespace lldb_private;
 void
 OperatingSystemPython::Initialize()
 {
-    PluginManager::RegisterPlugin (GetPluginNameStatic(),
-                                   GetPluginDescriptionStatic(),
-                                   CreateInstance);
+    PluginManager::RegisterPlugin(GetPluginNameStatic(), GetPluginDescriptionStatic(), CreateInstance, nullptr);
 }
 
 void
diff --git a/source/Plugins/OperatingSystem/Python/OperatingSystemPython.h b/source/Plugins/OperatingSystem/Python/OperatingSystemPython.h
index e29bf8054f6c0..1b33c42cf0fef 100644
--- a/source/Plugins/OperatingSystem/Python/OperatingSystemPython.h
+++ b/source/Plugins/OperatingSystem/Python/OperatingSystemPython.h
@@ -1,4 +1,4 @@
-//===-- OperatingSystemPython.h ---------------------------*- C++ -*-===//
+//===-- OperatingSystemPython.h ---------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -6,14 +6,16 @@
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
-#ifndef LLDB_DISABLE_PYTHON
 
 #ifndef liblldb_OperatingSystemPython_h_
 #define liblldb_OperatingSystemPython_h_
 
+#ifndef LLDB_DISABLE_PYTHON
+
 // C Includes
 // C++ Includes
 // Other libraries and framework includes
+// Project includes
 #include "lldb/Core/StructuredData.h"
 #include "lldb/Target/OperatingSystem.h"
 
@@ -27,6 +29,11 @@ class ScriptInterpreter;
 class OperatingSystemPython : public lldb_private::OperatingSystem
 {
 public:
+    OperatingSystemPython(lldb_private::Process *process,
+                          const lldb_private::FileSpec &python_module_path);
+
+    ~OperatingSystemPython() override;
+
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
@@ -46,49 +53,39 @@ public:
     GetPluginDescriptionStatic();
     
     //------------------------------------------------------------------
-    // Class Methods
-    //------------------------------------------------------------------
-    OperatingSystemPython (lldb_private::Process *process,
-                           const lldb_private::FileSpec &python_module_path);
-    
-    virtual
-    ~OperatingSystemPython ();
-    
-    //------------------------------------------------------------------
     // lldb_private::PluginInterface Methods
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
     
-    virtual uint32_t
-    GetPluginVersion();
+    uint32_t
+    GetPluginVersion() override;
     
     //------------------------------------------------------------------
     // lldb_private::OperatingSystem Methods
     //------------------------------------------------------------------
-    virtual bool
-    UpdateThreadList (lldb_private::ThreadList &old_thread_list,
-                      lldb_private::ThreadList &real_thread_list,
-                      lldb_private::ThreadList &new_thread_list);
+    bool
+    UpdateThreadList(lldb_private::ThreadList &old_thread_list,
+                     lldb_private::ThreadList &real_thread_list,
+                     lldb_private::ThreadList &new_thread_list) override;
     
-    virtual void
-    ThreadWasSelected (lldb_private::Thread *thread);
+    void
+    ThreadWasSelected(lldb_private::Thread *thread) override;
 
-    virtual lldb::RegisterContextSP
-    CreateRegisterContextForThread (lldb_private::Thread *thread,
-                                    lldb::addr_t reg_data_addr);
+    lldb::RegisterContextSP
+    CreateRegisterContextForThread(lldb_private::Thread *thread,
+                                   lldb::addr_t reg_data_addr) override;
 
-    virtual lldb::StopInfoSP
-    CreateThreadStopReason (lldb_private::Thread *thread);
+    lldb::StopInfoSP
+    CreateThreadStopReason(lldb_private::Thread *thread) override;
 
     //------------------------------------------------------------------
     // Method for lazy creation of threads on demand
     //------------------------------------------------------------------
-    virtual lldb::ThreadSP
-    CreateThread (lldb::tid_t tid, lldb::addr_t context);
+    lldb::ThreadSP
+    CreateThread(lldb::tid_t tid, lldb::addr_t context) override;
 
 protected:
-    
     bool IsValid() const
     {
         return m_python_object_sp && m_python_object_sp->IsValid();
@@ -107,5 +104,6 @@ protected:
     lldb_private::StructuredData::ObjectSP m_python_object_sp;
 };
 
-#endif // #ifndef liblldb_OperatingSystemPython_h_
-#endif // #ifndef LLDB_DISABLE_PYTHON
+#endif // LLDB_DISABLE_PYTHON
+
+#endif // liblldb_OperatingSystemPython_h_
diff --git a/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.h b/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.h
index 67156e6ae37b6..d1bfc438a3419 100644
--- a/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.h
+++ b/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.h
@@ -22,6 +22,9 @@ namespace platform_freebsd {
     class PlatformFreeBSD : public Platform
     {
     public:
+        PlatformFreeBSD(bool is_host);
+
+        ~PlatformFreeBSD() override;
 
         //------------------------------------------------------------
         // Class functions
@@ -42,14 +45,6 @@ namespace platform_freebsd {
         GetDescriptionStatic (bool is_host);
 
         //------------------------------------------------------------
-        // Class Methods
-        //------------------------------------------------------------
-        PlatformFreeBSD (bool is_host);
-
-        virtual
-        ~PlatformFreeBSD();
-
-        //------------------------------------------------------------
         // lldb_private::PluginInterface functions
         //------------------------------------------------------------
         ConstString
@@ -179,4 +174,4 @@ namespace platform_freebsd {
 } // namespace platform_freebsd
 } // namespace lldb_private
 
-#endif  // liblldb_PlatformFreeBSD_h_
+#endif // liblldb_PlatformFreeBSD_h_
diff --git a/source/Plugins/Platform/NetBSD/PlatformNetBSD.cpp b/source/Plugins/Platform/NetBSD/PlatformNetBSD.cpp
new file mode 100644
index 0000000000000..2979d1e438b77
--- /dev/null
+++ b/source/Plugins/Platform/NetBSD/PlatformNetBSD.cpp
@@ -0,0 +1,685 @@
+//===-- PlatformNetBSD.cpp -------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "PlatformNetBSD.h"
+#include "lldb/Host/Config.h"
+
+// C Includes
+#include <stdio.h>
+#ifndef LLDB_DISABLE_POSIX
+#include <sys/utsname.h>
+#endif
+
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/Breakpoint/BreakpointLocation.h"
+#include "lldb/Breakpoint/BreakpointSite.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Debugger.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/ModuleSpec.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Host/Host.h"
+#include "lldb/Host/HostInfo.h"
+#include "lldb/Target/Process.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::platform_netbsd;
+
+PlatformSP
+PlatformNetBSD::CreateInstance(bool force, const ArchSpec *arch)
+{
+    // The only time we create an instance is when we are creating a remote
+    // netbsd platform
+    const bool is_host = false;
+
+    bool create = force;
+    if (create == false && arch && arch->IsValid())
+    {
+        const llvm::Triple &triple = arch->GetTriple();
+        switch (triple.getOS())
+        {
+            case llvm::Triple::NetBSD:
+                create = true;
+                break;
+
+            default:
+                break;
+        }
+    }
+    if (create)
+        return PlatformSP(new PlatformNetBSD (is_host));
+    return PlatformSP();
+
+}
+
+ConstString
+PlatformNetBSD::GetPluginNameStatic(bool is_host)
+{
+    if (is_host)
+    {
+        static ConstString g_host_name(Platform::GetHostPlatformName ());
+        return g_host_name;
+    }
+    else
+    {
+        static ConstString g_remote_name("remote-netbsd");
+        return g_remote_name;
+    }
+}
+
+const char *
+PlatformNetBSD::GetDescriptionStatic (bool is_host)
+{
+    if (is_host)
+        return "Local NetBSD user platform plug-in.";
+    else
+        return "Remote NetBSD user platform plug-in.";
+}
+
+static uint32_t g_initialize_count = 0;
+
+void
+PlatformNetBSD::Initialize ()
+{
+    Platform::Initialize ();
+
+    if (g_initialize_count++ == 0)
+    {
+#if defined(__NetBSD__)
+        // Force a host flag to true for the default platform object.
+        PlatformSP default_platform_sp (new PlatformNetBSD(true));
+        default_platform_sp->SetSystemArchitecture(HostInfo::GetArchitecture());
+        Platform::SetHostPlatform (default_platform_sp);
+#endif
+        PluginManager::RegisterPlugin(PlatformNetBSD::GetPluginNameStatic(false),
+                                      PlatformNetBSD::GetDescriptionStatic(false),
+                                      PlatformNetBSD::CreateInstance);
+    }
+}
+
+void
+PlatformNetBSD::Terminate ()
+{
+    if (g_initialize_count > 0 && --g_initialize_count == 0)
+        PluginManager::UnregisterPlugin (PlatformNetBSD::CreateInstance);
+
+    Platform::Terminate ();
+}
+
+bool
+PlatformNetBSD::GetModuleSpec (const FileSpec& module_file_spec,
+                               const ArchSpec& arch,
+                               ModuleSpec &module_spec)
+{
+    if (m_remote_platform_sp)
+        return m_remote_platform_sp->GetModuleSpec (module_file_spec, arch, module_spec);
+
+    return Platform::GetModuleSpec (module_file_spec, arch, module_spec);
+}
+
+Error
+PlatformNetBSD::RunShellCommand(const char *command,
+                                const FileSpec &working_dir,
+                                int *status_ptr,
+                                int *signo_ptr,
+                                std::string *command_output,
+                                uint32_t timeout_sec)
+{
+    if (IsHost())
+        return Host::RunShellCommand(command, working_dir, status_ptr, signo_ptr, command_output, timeout_sec);
+    else
+    {
+        if (m_remote_platform_sp)
+            return m_remote_platform_sp->RunShellCommand(command, working_dir, status_ptr, signo_ptr, command_output, timeout_sec);
+        else
+            return Error("unable to run a remote command without a platform");
+    }
+}
+
+Error
+PlatformNetBSD::ResolveExecutable (const ModuleSpec &module_spec,
+                                   lldb::ModuleSP &exe_module_sp,
+                                   const FileSpecList *module_search_paths_ptr)
+{
+    Error error;
+    // Nothing special to do here, just use the actual file and architecture
+
+    char exe_path[PATH_MAX];
+    ModuleSpec resolved_module_spec(module_spec);
+
+    if (IsHost())
+    {
+        // If we have "ls" as the module_spec's file, resolve the executable location based on
+        // the current path variables
+        if (!resolved_module_spec.GetFileSpec().Exists())
+        {
+            module_spec.GetFileSpec().GetPath(exe_path, sizeof(exe_path));
+            resolved_module_spec.GetFileSpec().SetFile(exe_path, true);
+        }
+
+        if (!resolved_module_spec.GetFileSpec().Exists())
+            resolved_module_spec.GetFileSpec().ResolveExecutableLocation ();
+
+        if (resolved_module_spec.GetFileSpec().Exists())
+            error.Clear();
+        else
+        {
+            error.SetErrorStringWithFormat("unable to find executable for '%s'", resolved_module_spec.GetFileSpec().GetPath().c_str());
+        }
+    }
+    else
+    {
+        if (m_remote_platform_sp)
+        {
+            error = GetCachedExecutable (resolved_module_spec, exe_module_sp, module_search_paths_ptr, *m_remote_platform_sp);
+        }
+        else
+        {
+            // We may connect to a process and use the provided executable (Don't use local $PATH).
+
+            // Resolve any executable within a bundle on MacOSX
+            Host::ResolveExecutableInBundle (resolved_module_spec.GetFileSpec());
+
+            if (resolved_module_spec.GetFileSpec().Exists())
+            {
+                error.Clear();
+            }
+            else
+            {
+                error.SetErrorStringWithFormat("the platform is not currently connected, and '%s' doesn't exist in the system root.", resolved_module_spec.GetFileSpec().GetPath().c_str());
+            }
+        }
+    }
+
+    if (error.Success())
+    {
+        if (resolved_module_spec.GetArchitecture().IsValid())
+        {
+            error = ModuleList::GetSharedModule (resolved_module_spec,
+                                                 exe_module_sp,
+                                                 module_search_paths_ptr,
+                                                 NULL,
+                                                 NULL);
+
+            if (!exe_module_sp || exe_module_sp->GetObjectFile() == NULL)
+            {
+                exe_module_sp.reset();
+                error.SetErrorStringWithFormat ("'%s' doesn't contain the architecture %s",
+                                                resolved_module_spec.GetFileSpec().GetPath().c_str(),
+                                                resolved_module_spec.GetArchitecture().GetArchitectureName());
+            }
+        }
+        else
+        {
+            // No valid architecture was specified, ask the platform for
+            // the architectures that we should be using (in the correct order)
+            // and see if we can find a match that way
+            StreamString arch_names;
+            for (uint32_t idx = 0; GetSupportedArchitectureAtIndex (idx, resolved_module_spec.GetArchitecture()); ++idx)
+            {
+                error = ModuleList::GetSharedModule (resolved_module_spec,
+                                                     exe_module_sp,
+                                                     module_search_paths_ptr,
+                                                     NULL,
+                                                     NULL);
+                // Did we find an executable using one of the
+                if (error.Success())
+                {
+                    if (exe_module_sp && exe_module_sp->GetObjectFile())
+                        break;
+                    else
+                        error.SetErrorToGenericError();
+                }
+
+                if (idx > 0)
+                    arch_names.PutCString (", ");
+                arch_names.PutCString (resolved_module_spec.GetArchitecture().GetArchitectureName());
+            }
+
+            if (error.Fail() || !exe_module_sp)
+            {
+                if (resolved_module_spec.GetFileSpec().Readable())
+                {
+                    error.SetErrorStringWithFormat ("'%s' doesn't contain any '%s' platform architectures: %s",
+                                                    resolved_module_spec.GetFileSpec().GetPath().c_str(),
+                                                    GetPluginName().GetCString(),
+                                                    arch_names.GetString().c_str());
+                }
+                else
+                {
+                    error.SetErrorStringWithFormat("'%s' is not readable", resolved_module_spec.GetFileSpec().GetPath().c_str());
+                }
+            }
+        }
+    }
+
+    return error;
+}
+
+// From PlatformMacOSX only
+Error
+PlatformNetBSD::GetFileWithUUID (const FileSpec &platform_file,
+                                 const UUID *uuid_ptr,
+                                 FileSpec &local_file)
+{
+    if (IsRemote())
+    {
+        if (m_remote_platform_sp)
+            return m_remote_platform_sp->GetFileWithUUID (platform_file, uuid_ptr, local_file);
+    }
+
+    // Default to the local case
+    local_file = platform_file;
+    return Error();
+}
+
+
+//------------------------------------------------------------------
+/// Default Constructor
+//------------------------------------------------------------------
+PlatformNetBSD::PlatformNetBSD (bool is_host) :
+    Platform(is_host),
+    m_remote_platform_sp()
+{
+}
+
+bool
+PlatformNetBSD::GetRemoteOSVersion ()
+{
+    if (m_remote_platform_sp)
+        return m_remote_platform_sp->GetOSVersion (m_major_os_version,
+                                                   m_minor_os_version,
+                                                   m_update_os_version);
+    return false;
+}
+
+bool
+PlatformNetBSD::GetRemoteOSBuildString (std::string &s)
+{
+    if (m_remote_platform_sp)
+        return m_remote_platform_sp->GetRemoteOSBuildString (s);
+    s.clear();
+    return false;
+}
+
+bool
+PlatformNetBSD::GetRemoteOSKernelDescription (std::string &s)
+{
+    if (m_remote_platform_sp)
+        return m_remote_platform_sp->GetRemoteOSKernelDescription (s);
+    s.clear();
+    return false;
+}
+
+// Remote Platform subclasses need to override this function
+ArchSpec
+PlatformNetBSD::GetRemoteSystemArchitecture ()
+{
+    if (m_remote_platform_sp)
+        return m_remote_platform_sp->GetRemoteSystemArchitecture ();
+    return ArchSpec();
+}
+
+
+const char *
+PlatformNetBSD::GetHostname ()
+{
+    if (IsHost())
+        return Platform::GetHostname();
+
+    if (m_remote_platform_sp)
+        return m_remote_platform_sp->GetHostname ();
+    return NULL;
+}
+
+bool
+PlatformNetBSD::IsConnected () const
+{
+    if (IsHost())
+        return true;
+    else if (m_remote_platform_sp)
+        return m_remote_platform_sp->IsConnected();
+    return false;
+}
+
+Error
+PlatformNetBSD::ConnectRemote (Args& args)
+{
+    Error error;
+    if (IsHost())
+    {
+        error.SetErrorStringWithFormat ("can't connect to the host platform '%s', always connected", GetPluginName().GetCString());
+    }
+    else
+    {
+        if (!m_remote_platform_sp)
+            m_remote_platform_sp = Platform::Create (ConstString("remote-gdb-server"), error);
+
+        if (m_remote_platform_sp)
+        {
+            if (error.Success())
+            {
+                if (m_remote_platform_sp)
+                {
+                    error = m_remote_platform_sp->ConnectRemote (args);
+                }
+                else
+                {
+                    error.SetErrorString ("\"platform connect\" takes a single argument: <connect-url>");
+                }
+            }
+        }
+        else
+            error.SetErrorString ("failed to create a 'remote-gdb-server' platform");
+
+        if (error.Fail())
+            m_remote_platform_sp.reset();
+    }
+
+    return error;
+}
+
+Error
+PlatformNetBSD::DisconnectRemote ()
+{
+    Error error;
+
+    if (IsHost())
+    {
+        error.SetErrorStringWithFormat ("can't disconnect from the host platform '%s', always connected", GetPluginName().GetCString());
+    }
+    else
+    {
+        if (m_remote_platform_sp)
+            error = m_remote_platform_sp->DisconnectRemote ();
+        else
+            error.SetErrorString ("the platform is not currently connected");
+    }
+    return error;
+}
+
+bool
+PlatformNetBSD::GetProcessInfo (lldb::pid_t pid, ProcessInstanceInfo &process_info)
+{
+    bool success = false;
+    if (IsHost())
+    {
+        success = Platform::GetProcessInfo (pid, process_info);
+    }
+    else if (m_remote_platform_sp)
+    {
+        success = m_remote_platform_sp->GetProcessInfo (pid, process_info);
+    }
+    return success;
+}
+
+uint32_t
+PlatformNetBSD::FindProcesses (const ProcessInstanceInfoMatch &match_info,
+                               ProcessInstanceInfoList &process_infos)
+{
+    uint32_t match_count = 0;
+    if (IsHost())
+    {
+        // Let the base class figure out the host details
+        match_count = Platform::FindProcesses (match_info, process_infos);
+    }
+    else
+    {
+        // If we are remote, we can only return results if we are connected
+        if (m_remote_platform_sp)
+            match_count = m_remote_platform_sp->FindProcesses (match_info, process_infos);
+    }
+    return match_count;
+}
+
+const char *
+PlatformNetBSD::GetUserName (uint32_t uid)
+{
+    // Check the cache in Platform in case we have already looked this uid up
+    const char *user_name = Platform::GetUserName(uid);
+    if (user_name)
+        return user_name;
+
+    if (IsRemote() && m_remote_platform_sp)
+        return m_remote_platform_sp->GetUserName(uid);
+    return NULL;
+}
+
+const char *
+PlatformNetBSD::GetGroupName (uint32_t gid)
+{
+    const char *group_name = Platform::GetGroupName(gid);
+    if (group_name)
+        return group_name;
+
+    if (IsRemote() && m_remote_platform_sp)
+        return m_remote_platform_sp->GetGroupName(gid);
+    return NULL;
+}
+
+
+Error
+PlatformNetBSD::GetSharedModule (const ModuleSpec &module_spec,
+                                 Process* process,
+                                 ModuleSP &module_sp,
+                                 const FileSpecList *module_search_paths_ptr,
+                                 ModuleSP *old_module_sp_ptr,
+                                 bool *did_create_ptr)
+{
+    Error error;
+    module_sp.reset();
+
+    if (IsRemote())
+    {
+        // If we have a remote platform always, let it try and locate
+        // the shared module first.
+        if (m_remote_platform_sp)
+        {
+            error = m_remote_platform_sp->GetSharedModule (module_spec,
+                                                           process,
+                                                           module_sp,
+                                                           module_search_paths_ptr,
+                                                           old_module_sp_ptr,
+                                                           did_create_ptr);
+        }
+    }
+
+    if (!module_sp)
+    {
+        // Fall back to the local platform and find the file locally
+        error = Platform::GetSharedModule (module_spec,
+                                           process,
+                                           module_sp,
+                                           module_search_paths_ptr,
+                                           old_module_sp_ptr,
+                                           did_create_ptr);
+    }
+    if (module_sp)
+        module_sp->SetPlatformFileSpec(module_spec.GetFileSpec());
+    return error;
+}
+
+
+bool
+PlatformNetBSD::GetSupportedArchitectureAtIndex (uint32_t idx, ArchSpec &arch)
+{
+    if (IsHost())
+    {
+        ArchSpec hostArch = HostInfo::GetArchitecture(HostInfo::eArchKindDefault);
+        if (hostArch.GetTriple().isOSNetBSD())
+        {
+            if (idx == 0)
+            {
+                arch = hostArch;
+                return arch.IsValid();
+            }
+            else if (idx == 1)
+            {
+                // If the default host architecture is 64-bit, look for a 32-bit variant
+                if (hostArch.IsValid() && hostArch.GetTriple().isArch64Bit())
+                {
+                    arch = HostInfo::GetArchitecture(HostInfo::eArchKind32);
+                    return arch.IsValid();
+                }
+            }
+        }
+    }
+    else
+    {
+        if (m_remote_platform_sp)
+            return m_remote_platform_sp->GetSupportedArchitectureAtIndex(idx, arch);
+
+        llvm::Triple triple;
+        // Set the OS to NetBSD
+        triple.setOS(llvm::Triple::NetBSD);
+        // Set the architecture
+        switch (idx)
+        {
+            case 0: triple.setArchName("x86_64"); break;
+            case 1: triple.setArchName("i386"); break;
+            default: return false;
+        }
+        // Leave the vendor as "llvm::Triple:UnknownVendor" and don't specify the vendor by
+        // calling triple.SetVendorName("unknown") so that it is a "unspecified unknown".
+        // This means when someone calls triple.GetVendorName() it will return an empty string
+        // which indicates that the vendor can be set when two architectures are merged
+
+        // Now set the triple into "arch" and return true
+        arch.SetTriple(triple);
+        return true;
+    }
+    return false;
+}
+
+void
+PlatformNetBSD::GetStatus (Stream &strm)
+{
+#ifndef LLDB_DISABLE_POSIX
+    struct ::utsname un;
+
+    strm << "      Host: ";
+
+    ::memset(&un, 0, sizeof(utsname));
+    if (::uname(&un) == -1) {
+        strm << "NetBSD" << '\n';
+    } else {
+        strm << un.sysname << ' ' << un.release;
+        if (un.nodename[0] != '\0')
+            strm << " (" << un.nodename << ')';
+        strm << '\n';
+
+        // Dump a common information about the platform status.
+        strm << "Host: " << un.sysname << ' ' << un.release << ' ' << un.version << '\n';
+    }
+#endif
+
+    Platform::GetStatus(strm);
+}
+
+size_t
+PlatformNetBSD::GetSoftwareBreakpointTrapOpcode (Target &target, BreakpointSite *bp_site)
+{
+    ArchSpec arch = target.GetArchitecture();
+    const uint8_t *trap_opcode = NULL;
+    size_t trap_opcode_size = 0;
+
+    switch (arch.GetMachine())
+    {
+    default:
+        assert(false && "Unhandled architecture in PlatformNetBSD::GetSoftwareBreakpointTrapOpcode()");
+        break;
+    case llvm::Triple::x86:
+    case llvm::Triple::x86_64:
+        {
+            static const uint8_t g_i386_opcode[] = { 0xCC };
+            trap_opcode = g_i386_opcode;
+            trap_opcode_size = sizeof(g_i386_opcode);
+        }
+        break;
+    }
+
+    if (bp_site->SetTrapOpcode(trap_opcode, trap_opcode_size))
+        return trap_opcode_size;
+    return 0;
+}
+
+
+void
+PlatformNetBSD::CalculateTrapHandlerSymbolNames ()
+{
+    m_trap_handlers.push_back (ConstString ("_sigtramp"));
+}
+
+Error
+PlatformNetBSD::LaunchProcess (ProcessLaunchInfo &launch_info)
+{
+    Error error;
+    if (IsHost())
+    {
+        error = Platform::LaunchProcess (launch_info);
+    }
+    else
+    {
+        if (m_remote_platform_sp)
+            error = m_remote_platform_sp->LaunchProcess (launch_info);
+        else
+            error.SetErrorString ("the platform is not currently connected");
+    }
+    return error;
+}
+
+lldb::ProcessSP
+PlatformNetBSD::Attach(ProcessAttachInfo &attach_info,
+                       Debugger &debugger,
+                       Target *target,
+                       Error &error)
+{
+    lldb::ProcessSP process_sp;
+    if (IsHost())
+    {
+        if (target == NULL)
+        {
+            TargetSP new_target_sp;
+            ArchSpec emptyArchSpec;
+
+            error = debugger.GetTargetList().CreateTarget (debugger,
+                                                           NULL,
+                                                           emptyArchSpec,
+                                                           false,
+                                                           m_remote_platform_sp,
+                                                           new_target_sp);
+            target = new_target_sp.get();
+        }
+        else
+            error.Clear();
+
+        if (target && error.Success())
+        {
+            debugger.GetTargetList().SetSelectedTarget(target);
+            // The netbsd always currently uses the GDB remote debugger plug-in
+            // so even when debugging locally we are debugging remotely!
+            // Just like the darwin plugin.
+            process_sp = target->CreateProcess (attach_info.GetListenerForProcess(debugger), "gdb-remote", NULL);
+
+            if (process_sp)
+                error = process_sp->Attach (attach_info);
+        }
+    }
+    else
+    {
+        if (m_remote_platform_sp)
+            process_sp = m_remote_platform_sp->Attach (attach_info, debugger, target, error);
+        else
+            error.SetErrorString ("the platform is not currently connected");
+    }
+    return process_sp;
+}
diff --git a/source/Plugins/Platform/NetBSD/PlatformNetBSD.h b/source/Plugins/Platform/NetBSD/PlatformNetBSD.h
new file mode 100644
index 0000000000000..b0187be99b059
--- /dev/null
+++ b/source/Plugins/Platform/NetBSD/PlatformNetBSD.h
@@ -0,0 +1,177 @@
+//===-- PlatformNetBSD.h ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_PlatformNetBSD_h_
+#define liblldb_PlatformNetBSD_h_
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/Target/Platform.h"
+
+namespace lldb_private {
+namespace platform_netbsd {
+
+    class PlatformNetBSD : public Platform
+    {
+    public:
+        PlatformNetBSD (bool is_host);
+
+        ~PlatformNetBSD() override = default;
+
+        //------------------------------------------------------------
+        // Class functions
+        //------------------------------------------------------------
+        static lldb::PlatformSP
+        CreateInstance(bool force, const ArchSpec *arch);
+
+        static void
+        Initialize ();
+
+        static void
+        Terminate ();
+
+        static ConstString
+        GetPluginNameStatic (bool is_host);
+
+        static const char *
+        GetDescriptionStatic (bool is_host);
+
+        //------------------------------------------------------------
+        // lldb_private::PluginInterface functions
+        //------------------------------------------------------------
+        ConstString
+        GetPluginName() override
+        {
+            return GetPluginNameStatic (IsHost());
+        }
+
+        uint32_t
+        GetPluginVersion() override
+        {
+            return 1;
+        }
+
+        const char *
+        GetDescription () override
+        {
+            return GetDescriptionStatic(IsHost());
+        }
+
+        //------------------------------------------------------------
+        // lldb_private::Platform functions
+        //------------------------------------------------------------
+        bool
+        GetModuleSpec(const FileSpec& module_file_spec,
+                      const ArchSpec& arch,
+                      ModuleSpec &module_spec) override;
+
+        Error
+        RunShellCommand(const char *command,
+                        const FileSpec &working_dir,
+                        int *status_ptr,
+                        int *signo_ptr,
+                        std::string *command_output,
+                        uint32_t timeout_sec) override;
+
+        Error
+        ResolveExecutable(const ModuleSpec &module_spec,
+                          lldb::ModuleSP &module_sp,
+                          const FileSpecList *module_search_paths_ptr) override;
+
+        size_t
+        GetSoftwareBreakpointTrapOpcode(Target &target,
+                                        BreakpointSite *bp_site) override;
+
+        bool
+        GetRemoteOSVersion () override;
+
+        bool
+        GetRemoteOSBuildString (std::string &s) override;
+
+        bool
+        GetRemoteOSKernelDescription (std::string &s) override;
+
+        // Remote Platform subclasses need to override this function
+        ArchSpec
+        GetRemoteSystemArchitecture() override;
+
+        bool
+        IsConnected () const override;
+
+        Error
+        ConnectRemote(Args& args) override;
+
+        Error
+        DisconnectRemote() override;
+
+        const char *
+        GetHostname () override;
+
+        const char *
+        GetUserName (uint32_t uid) override;
+
+        const char *
+        GetGroupName (uint32_t gid) override;
+
+        bool
+        GetProcessInfo(lldb::pid_t pid,
+                       ProcessInstanceInfo &proc_info) override;
+
+        uint32_t
+        FindProcesses(const ProcessInstanceInfoMatch &match_info,
+                      ProcessInstanceInfoList &process_infos) override;
+
+        Error
+        LaunchProcess(ProcessLaunchInfo &launch_info) override;
+
+        lldb::ProcessSP
+        Attach(ProcessAttachInfo &attach_info,
+               Debugger &debugger,
+               Target *target,
+               Error &error) override;
+
+        // NetBSD processes can not be launched by spawning and attaching.
+        bool
+        CanDebugProcess () override { return false; }
+
+        // Only on PlatformMacOSX:
+        Error
+        GetFileWithUUID(const FileSpec &platform_file,
+                        const UUID* uuid, FileSpec &local_file) override;
+
+        Error
+        GetSharedModule(const ModuleSpec &module_spec,
+                        Process* process,
+                        lldb::ModuleSP &module_sp,
+                        const FileSpecList *module_search_paths_ptr,
+                        lldb::ModuleSP *old_module_sp_ptr,
+                        bool *did_create_ptr) override;
+
+        bool
+        GetSupportedArchitectureAtIndex(uint32_t idx, ArchSpec &arch) override;
+
+        void
+        GetStatus(Stream &strm) override;
+
+        void
+        CalculateTrapHandlerSymbolNames () override;
+
+    protected:
+        lldb::PlatformSP m_remote_platform_sp; // Allow multiple ways to connect to a remote netbsd OS
+
+    private:
+        DISALLOW_COPY_AND_ASSIGN (PlatformNetBSD);
+    };
+
+} // namespace platform_netbsd
+} // namespace lldb_private
+
+#endif // liblldb_PlatformNetBSD_h_
diff --git a/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp b/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp
index b4f841a16dec4..c7564655a11b5 100644
--- a/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp
+++ b/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp
@@ -19,13 +19,18 @@
 #include "lldb/Core/Log.h"
 #include "lldb/Core/Module.h"
 #include "lldb/Core/StreamString.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Expression/UserExpression.h"
 #include "lldb/Host/File.h"
 #include "lldb/Host/FileCache.h"
 #include "lldb/Host/FileSpec.h"
 #include "lldb/Host/FileSystem.h"
 #include "lldb/Host/Host.h"
+#include "lldb/Target/DynamicLoader.h"
+#include "lldb/Target/ExecutionContext.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/ProcessLaunchInfo.h"
+#include "lldb/Target/Thread.h"
 
 using namespace lldb;
 using namespace lldb_private;
@@ -673,9 +678,12 @@ PlatformPOSIX::ConnectRemote (Args& args)
         if (m_options.get())
         {
             OptionGroupOptions* options = m_options.get();
-            const OptionGroupPlatformRSync* m_rsync_options = (OptionGroupPlatformRSync*)options->GetGroupWithOption('r');
-            const OptionGroupPlatformSSH* m_ssh_options = (OptionGroupPlatformSSH*)options->GetGroupWithOption('s');
-            const OptionGroupPlatformCaching* m_cache_options = (OptionGroupPlatformCaching*)options->GetGroupWithOption('c');
+            const OptionGroupPlatformRSync *m_rsync_options =
+                static_cast<const OptionGroupPlatformRSync *>(options->GetGroupWithOption('r'));
+            const OptionGroupPlatformSSH *m_ssh_options =
+                static_cast<const OptionGroupPlatformSSH *>(options->GetGroupWithOption('s'));
+            const OptionGroupPlatformCaching *m_cache_options =
+                static_cast<const OptionGroupPlatformCaching *>(options->GetGroupWithOption('c'));
 
             if (m_rsync_options->m_rsync)
             {
@@ -843,6 +851,175 @@ PlatformPOSIX::DebugProcess (ProcessLaunchInfo &launch_info,
 
 void
 PlatformPOSIX::CalculateTrapHandlerSymbolNames ()
-{   
+{
     m_trap_handlers.push_back (ConstString ("_sigtramp"));
+}
+
+Error
+PlatformPOSIX::EvaluateLibdlExpression(lldb_private::Process* process,
+                                       const char* expr_cstr,
+                                       const char* expr_prefix,
+                                       lldb::ValueObjectSP& result_valobj_sp)
+{
+    DynamicLoader *loader = process->GetDynamicLoader();
+    if (loader)
+    {
+        Error error = loader->CanLoadImage();
+        if (error.Fail())
+            return error;
+    }
+
+    ThreadSP thread_sp(process->GetThreadList().GetSelectedThread());
+    if (!thread_sp)
+        return Error("Selected thread isn't valid");
+
+    StackFrameSP frame_sp(thread_sp->GetStackFrameAtIndex(0));
+    if (!frame_sp)
+        return Error("Frame 0 isn't valid");
+
+    ExecutionContext exe_ctx;
+    frame_sp->CalculateExecutionContext(exe_ctx);
+    EvaluateExpressionOptions expr_options;
+    expr_options.SetUnwindOnError(true);
+    expr_options.SetIgnoreBreakpoints(true);
+    expr_options.SetExecutionPolicy(eExecutionPolicyAlways);
+    expr_options.SetLanguage(eLanguageTypeC_plus_plus);
+
+    Error expr_error;
+    UserExpression::Evaluate(exe_ctx,
+                             expr_options,
+                             expr_cstr,
+                             expr_prefix,
+                             result_valobj_sp,
+                             expr_error);
+    if (result_valobj_sp->GetError().Fail())
+        return result_valobj_sp->GetError();
+    return Error();
+}
+
+uint32_t
+PlatformPOSIX::DoLoadImage(lldb_private::Process* process,
+                           const lldb_private::FileSpec& remote_file,
+                           lldb_private::Error& error)
+{
+    char path[PATH_MAX];
+    remote_file.GetPath(path, sizeof(path));
+
+    StreamString expr;
+    expr.Printf(R"(
+                   struct __lldb_dlopen_result { void *image_ptr; const char *error_str; } the_result;
+                   the_result.image_ptr = dlopen ("%s", 2);
+                   if (the_result.image_ptr == (void *) 0x0)
+                   {
+                       the_result.error_str = dlerror();
+                   }
+                   else
+                   {
+                       the_result.error_str = (const char *) 0x0;
+                   }
+                   the_result;
+                  )",
+                  path);
+    const char *prefix = GetLibdlFunctionDeclarations();
+    lldb::ValueObjectSP result_valobj_sp;
+    error = EvaluateLibdlExpression(process, expr.GetData(), prefix, result_valobj_sp);
+    if (error.Fail())
+        return LLDB_INVALID_IMAGE_TOKEN;
+
+    error = result_valobj_sp->GetError();
+    if (error.Fail())
+        return LLDB_INVALID_IMAGE_TOKEN;
+
+    Scalar scalar;
+    ValueObjectSP image_ptr_sp = result_valobj_sp->GetChildAtIndex(0, true);
+    if (!image_ptr_sp || !image_ptr_sp->ResolveValue(scalar))
+    {
+        error.SetErrorStringWithFormat("unable to load '%s'", path);
+        return LLDB_INVALID_IMAGE_TOKEN;
+    }
+
+    addr_t image_ptr = scalar.ULongLong(LLDB_INVALID_ADDRESS);
+    if (image_ptr != 0 && image_ptr != LLDB_INVALID_ADDRESS)
+        return process->AddImageToken(image_ptr);
+
+    if (image_ptr == 0)
+    {
+        ValueObjectSP error_str_sp = result_valobj_sp->GetChildAtIndex(1, true);
+        if (error_str_sp && error_str_sp->IsCStringContainer(true))
+        {
+            DataBufferSP buffer_sp(new DataBufferHeap(10240,0));
+            size_t num_chars = error_str_sp->ReadPointedString (buffer_sp, error, 10240).first;
+            if (error.Success() && num_chars > 0)
+                error.SetErrorStringWithFormat("dlopen error: %s", buffer_sp->GetBytes());
+            else
+                error.SetErrorStringWithFormat("dlopen failed for unknown reasons.");
+            return LLDB_INVALID_IMAGE_TOKEN;
+        }
+    }
+    error.SetErrorStringWithFormat("unable to load '%s'", path);
+    return LLDB_INVALID_IMAGE_TOKEN;
+}
+
+Error
+PlatformPOSIX::UnloadImage (lldb_private::Process* process, uint32_t image_token)
+{
+    const addr_t image_addr = process->GetImagePtrFromToken(image_token);
+    if (image_addr == LLDB_INVALID_ADDRESS)
+        return Error("Invalid image token");
+
+    StreamString expr;
+    expr.Printf("dlclose((void *)0x%" PRIx64 ")", image_addr);
+    const char *prefix = GetLibdlFunctionDeclarations();
+    lldb::ValueObjectSP result_valobj_sp;
+    Error error = EvaluateLibdlExpression(process, expr.GetData(), prefix, result_valobj_sp);
+    if (error.Fail())
+        return error;
+
+    if (result_valobj_sp->GetError().Fail())
+        return result_valobj_sp->GetError();
+
+    Scalar scalar;
+    if (result_valobj_sp->ResolveValue(scalar))
+    {
+        if (scalar.UInt(1))
+            return Error("expression failed: \"%s\"", expr.GetData());
+        process->ResetImageToken(image_token);
+    }
+    return Error();
 }   
+
+lldb::ProcessSP
+PlatformPOSIX::ConnectProcess (const char* connect_url,
+                               const char* plugin_name,
+                               lldb_private::Debugger &debugger,
+                               lldb_private::Target *target,
+                               lldb_private::Error &error)
+{
+    if (m_remote_platform_sp)
+        return m_remote_platform_sp->ConnectProcess(connect_url,
+                                                    plugin_name,
+                                                    debugger,
+                                                    target,
+                                                    error);
+
+    return Platform::ConnectProcess(connect_url, plugin_name, debugger, target, error);
+}
+
+const char*
+PlatformPOSIX::GetLibdlFunctionDeclarations() const
+{
+    return R"(
+              extern "C" void* dlopen(const char*, int);
+              extern "C" void* dlsym(void*, const char*);
+              extern "C" int   dlclose(void*);
+              extern "C" char* dlerror(void);
+             )";
+}
+
+size_t
+PlatformPOSIX::ConnectToWaitingProcesses(Debugger& debugger, Error& error)
+{
+    if (m_remote_platform_sp)
+        return m_remote_platform_sp->ConnectToWaitingProcesses(debugger, error);
+    return Platform::ConnectToWaitingProcesses(debugger, error);
+}
diff --git a/source/Plugins/Platform/POSIX/PlatformPOSIX.h b/source/Plugins/Platform/POSIX/PlatformPOSIX.h
index 82686dcef6b0a..60f6207d140bc 100644
--- a/source/Plugins/Platform/POSIX/PlatformPOSIX.h
+++ b/source/Plugins/Platform/POSIX/PlatformPOSIX.h
@@ -12,7 +12,6 @@
 
 // C Includes
 // C++ Includes
-
 #include <memory>
 
 // Other libraries and framework includes
@@ -23,11 +22,10 @@
 class PlatformPOSIX : public lldb_private::Platform
 {
 public:
-    PlatformPOSIX (bool is_host);
-    
-    virtual
-    ~PlatformPOSIX();
-    
+    PlatformPOSIX(bool is_host);
+
+    ~PlatformPOSIX() override;
+
     //------------------------------------------------------------
     // lldb_private::Platform functions
     //------------------------------------------------------------
@@ -37,9 +35,8 @@ public:
                    const lldb_private::ArchSpec& arch,
                    lldb_private::ModuleSpec &module_spec) override;
 
-    lldb_private::OptionGroupOptions
-    *GetConnectionOptions(
-        lldb_private::CommandInterpreter &interpreter) override;
+    lldb_private::OptionGroupOptions*
+    GetConnectionOptions(lldb_private::CommandInterpreter &interpreter) override;
 
     const char *
     GetHostname () override;
@@ -119,11 +116,11 @@ public:
     IsConnected () const override;
 
     lldb_private::Error
-    RunShellCommand(const char *command,                       // Shouldn't be NULL
+    RunShellCommand(const char *command,                       // Shouldn't be nullptr
                     const lldb_private::FileSpec &working_dir, // Pass empty FileSpec to use the current working directory
-                    int *status_ptr,                           // Pass NULL if you don't want the process exit status
-                    int *signo_ptr,                            // Pass NULL if you don't want the signal that caused the process to exit
-                    std::string *command_output,               // Pass NULL if you don't want the command output
+                    int *status_ptr,                           // Pass nullptr if you don't want the process exit status
+                    int *signo_ptr,                            // Pass nullptr if you don't want the signal that caused the process to exit
+                    std::string *command_output,               // Pass nullptr if you don't want the command output
                     uint32_t timeout_sec) override;            // Timeout in seconds to wait for shell program to finish
 
     lldb_private::Error
@@ -150,13 +147,13 @@ public:
     lldb::ProcessSP
     Attach (lldb_private::ProcessAttachInfo &attach_info,
             lldb_private::Debugger &debugger,
-            lldb_private::Target *target,       // Can be NULL, if NULL create a new target, else use existing one
+            lldb_private::Target *target,       // Can be nullptr, if nullptr create a new target, else use existing one
             lldb_private::Error &error) override;
 
     lldb::ProcessSP
     DebugProcess (lldb_private::ProcessLaunchInfo &launch_info,
                   lldb_private::Debugger &debugger,
-                  lldb_private::Target *target,       // Can be NULL, if NULL create a new target, else use existing one
+                  lldb_private::Target *target,       // Can be nullptr, if nullptr create a new target, else use existing one
                   lldb_private::Error &error) override;
 
     std::string
@@ -176,14 +173,39 @@ public:
     lldb_private::Error
     DisconnectRemote () override;
 
+    uint32_t
+    DoLoadImage (lldb_private::Process* process,
+                 const lldb_private::FileSpec& remote_file,
+                 lldb_private::Error& error) override;
+
+    lldb_private::Error
+    UnloadImage (lldb_private::Process* process, uint32_t image_token) override;
+
+    lldb::ProcessSP
+    ConnectProcess (const char* connect_url,
+                    const char* plugin_name,
+                    lldb_private::Debugger &debugger,
+                    lldb_private::Target *target,
+                    lldb_private::Error &error) override;
+                    
+    size_t
+    ConnectToWaitingProcesses(lldb_private::Debugger& debugger, lldb_private::Error& error) override;
+
 protected:
     std::unique_ptr<lldb_private::OptionGroupOptions> m_options;
-        
     lldb::PlatformSP m_remote_platform_sp; // Allow multiple ways to connect to a remote POSIX-compliant OS
-    
+
+    lldb_private::Error
+    EvaluateLibdlExpression(lldb_private::Process* process,
+                            const char *expr_cstr,
+                            const char *expr_prefix,
+                            lldb::ValueObjectSP& result_valobj_sp);
+
+    virtual const char*
+    GetLibdlFunctionDeclarations() const;
+
 private:
     DISALLOW_COPY_AND_ASSIGN (PlatformPOSIX);
-    
 };
 
-#endif  // liblldb_PlatformPOSIX_h_
+#endif // liblldb_PlatformPOSIX_h_
diff --git a/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.cpp b/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.cpp
index b0e75d4f34576..f16ea017676f5 100644
--- a/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.cpp
+++ b/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.cpp
@@ -21,6 +21,7 @@
 #include "lldb/Core/ModuleList.h"
 #include "lldb/Core/ModuleSpec.h"
 #include "lldb/Core/PluginManager.h"
+#include "lldb/Core/StreamFile.h"
 #include "lldb/Core/StreamString.h"
 #include "lldb/Host/ConnectionFileDescriptor.h"
 #include "lldb/Host/FileSpec.h"
@@ -40,23 +41,6 @@ using namespace lldb_private::platform_gdb_server;
 
 static bool g_initialized = false;
 
-static std::string MakeGdbServerUrl(
-        const std::string &platform_scheme,
-        const std::string &platform_hostname,
-        uint16_t port)
-{
-    const char *override_scheme = getenv("LLDB_PLATFORM_REMOTE_GDB_SERVER_SCHEME");
-    const char *override_hostname = getenv("LLDB_PLATFORM_REMOTE_GDB_SERVER_HOSTNAME");
-    const char *port_offset_c_str = getenv("LLDB_PLATFORM_REMOTE_GDB_SERVER_PORT_OFFSET");
-    int port_offset = port_offset_c_str ? ::atoi(port_offset_c_str) : 0;
-    StreamString result;
-    result.Printf("%s://%s:%u",
-            override_scheme ? override_scheme : platform_scheme.c_str(),
-            override_hostname ? override_hostname : platform_hostname.c_str(),
-            port + port_offset);
-    return result.GetString();
-}
-
 void
 PlatformRemoteGDBServer::Initialize ()
 {
@@ -590,9 +574,8 @@ PlatformRemoteGDBServer::DebugProcess (ProcessLaunchInfo &launch_info,
         if (IsConnected())
         {
             lldb::pid_t debugserver_pid = LLDB_INVALID_PROCESS_ID;
-            uint16_t port = LaunchGDBserverAndGetPort(debugserver_pid);
-
-            if (port == 0)
+            std::string connect_url;
+            if (!LaunchGDBServer(debugserver_pid, connect_url))
             {
                 error.SetErrorStringWithFormat ("unable to launch a GDB server on '%s'", GetHostname ());
             }
@@ -623,8 +606,6 @@ PlatformRemoteGDBServer::DebugProcess (ProcessLaunchInfo &launch_info,
                     
                     if (process_sp)
                     {
-                        std::string connect_url =
-                            MakeGdbServerUrl(m_platform_scheme, m_platform_hostname, port);
                         error = process_sp->ConnectRemote (nullptr, connect_url.c_str());
                         // Retry the connect remote one time...
                         if (error.Fail())
@@ -649,23 +630,36 @@ PlatformRemoteGDBServer::DebugProcess (ProcessLaunchInfo &launch_info,
 
 }
 
-uint16_t
-PlatformRemoteGDBServer::LaunchGDBserverAndGetPort (lldb::pid_t &pid)
+bool
+PlatformRemoteGDBServer::LaunchGDBServer (lldb::pid_t &pid, std::string &connect_url)
 {
     ArchSpec remote_arch = GetRemoteSystemArchitecture ();
     llvm::Triple &remote_triple = remote_arch.GetTriple ();
+
+    uint16_t port = 0;
+    std::string socket_name;
+    bool launch_result = false;
     if (remote_triple.getVendor () == llvm::Triple::Apple && remote_triple.getOS () == llvm::Triple::IOS)
     {
         // When remote debugging to iOS, we use a USB mux that always talks
         // to localhost, so we will need the remote debugserver to accept connections
         // only from localhost, no matter what our current hostname is
-        return m_gdb_client.LaunchGDBserverAndGetPort (pid, "127.0.0.1");
+        launch_result = m_gdb_client.LaunchGDBServer ("127.0.0.1", pid, port, socket_name);
     }
     else
     {
         // All other hosts should use their actual hostname
-        return m_gdb_client.LaunchGDBserverAndGetPort (pid, NULL);
+        launch_result = m_gdb_client.LaunchGDBServer (nullptr, pid, port, socket_name);
     }
+
+    if (!launch_result)
+        return false;
+
+    connect_url = MakeGdbServerUrl(m_platform_scheme,
+                                   m_platform_hostname,
+                                   port,
+                                   (socket_name.empty()) ? nullptr : socket_name.c_str());
+    return true;
 }
 
 bool
@@ -686,9 +680,8 @@ PlatformRemoteGDBServer::Attach (ProcessAttachInfo &attach_info,
         if (IsConnected())
         {
             lldb::pid_t debugserver_pid = LLDB_INVALID_PROCESS_ID;
-            uint16_t port = LaunchGDBserverAndGetPort(debugserver_pid);
-
-            if (port == 0)
+            std::string connect_url;
+            if (!LaunchGDBServer(debugserver_pid, connect_url))
             {
                 error.SetErrorStringWithFormat ("unable to launch a GDB server on '%s'", GetHostname ());
             }
@@ -716,11 +709,8 @@ PlatformRemoteGDBServer::Attach (ProcessAttachInfo &attach_info,
                     // The darwin always currently uses the GDB remote debugger plug-in
                     // so even when debugging locally we are debugging remotely!
                     process_sp = target->CreateProcess (attach_info.GetListenerForProcess(debugger), "gdb-remote", NULL);
-                    
                     if (process_sp)
                     {
-                        std::string connect_url =
-                            MakeGdbServerUrl(m_platform_scheme, m_platform_hostname, port);
                         error = process_sp->ConnectRemote(nullptr, connect_url.c_str());
                         if (error.Success())
                         {
@@ -931,13 +921,8 @@ PlatformRemoteGDBServer::GetRemoteUnixSignals()
                 return false;
 
             // We can live without short_name, description, etc.
-            std::string short_name{""};
-            auto object_sp = dict->GetValueForKey("short_name");
-            if (object_sp && object_sp->IsValid())
-                short_name = object_sp->GetStringValue();
-
             bool suppress{false};
-            object_sp = dict->GetValueForKey("suppress");
+            auto object_sp = dict->GetValueForKey("suppress");
             if (object_sp && object_sp->IsValid())
                 suppress = object_sp->GetBooleanValue();
 
@@ -958,7 +943,6 @@ PlatformRemoteGDBServer::GetRemoteUnixSignals()
 
             remote_signals_sp->AddSignal(signo,
                                          name.c_str(),
-                                         short_name.c_str(),
                                          suppress, stop, notify,
                                          description.c_str());
             return true;
@@ -969,3 +953,66 @@ PlatformRemoteGDBServer::GetRemoteUnixSignals()
 
     return m_remote_signals_sp;
 }
+
+std::string
+PlatformRemoteGDBServer::MakeGdbServerUrl(const std::string &platform_scheme,
+                                          const std::string &platform_hostname,
+                                          uint16_t port,
+                                          const char* socket_name)
+{
+    const char *override_scheme = getenv("LLDB_PLATFORM_REMOTE_GDB_SERVER_SCHEME");
+    const char *override_hostname = getenv("LLDB_PLATFORM_REMOTE_GDB_SERVER_HOSTNAME");
+    const char *port_offset_c_str = getenv("LLDB_PLATFORM_REMOTE_GDB_SERVER_PORT_OFFSET");
+    int port_offset = port_offset_c_str ? ::atoi(port_offset_c_str) : 0;
+
+    return MakeUrl(override_scheme ? override_scheme : platform_scheme.c_str(),
+                   override_hostname ? override_hostname : platform_hostname.c_str(),
+                   port + port_offset,
+                   socket_name);
+}
+
+std::string
+PlatformRemoteGDBServer::MakeUrl(const char* scheme,
+                                 const char* hostname,
+                                 uint16_t port,
+                                 const char* path)
+{
+    StreamString result;
+    result.Printf("%s://%s", scheme, hostname);
+    if (port != 0)
+        result.Printf(":%u", port);
+    if (path)
+        result.Write(path, strlen(path));
+    return result.GetString();
+}
+
+lldb::ProcessSP
+PlatformRemoteGDBServer::ConnectProcess(const char* connect_url,
+                                        const char* plugin_name,
+                                        lldb_private::Debugger &debugger,
+                                        lldb_private::Target *target,
+                                        lldb_private::Error &error)
+{
+    if (!IsRemote() || !IsConnected())
+    {
+        error.SetErrorString("Not connected to remote gdb server");
+        return nullptr;
+    }
+    return Platform::ConnectProcess(connect_url, plugin_name, debugger, target, error);
+}
+
+size_t
+PlatformRemoteGDBServer::GetPendingGdbServerList(std::vector<std::string>& connection_urls)
+{
+    std::vector<std::pair<uint16_t, std::string>> remote_servers;
+    m_gdb_client.QueryGDBServer(remote_servers);
+    for (const auto& gdbserver : remote_servers)
+    {
+        const char* socket_name_cstr = gdbserver.second.empty() ? nullptr : gdbserver.second.c_str();
+        connection_urls.emplace_back(MakeGdbServerUrl(m_platform_scheme,
+                                                      m_platform_hostname,
+                                                      gdbserver.first,
+                                                      socket_name_cstr));
+    }
+    return connection_urls.size();
+}
diff --git a/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.h b/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.h
index 0bf013fdfb68e..61136f1185e66 100644
--- a/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.h
+++ b/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.h
@@ -217,6 +217,16 @@ public:
     const lldb::UnixSignalsSP &
     GetRemoteUnixSignals() override;
 
+    lldb::ProcessSP
+    ConnectProcess (const char* connect_url,
+                    const char* plugin_name,
+                    lldb_private::Debugger &debugger,
+                    lldb_private::Target *target,
+                    lldb_private::Error &error) override;
+
+    virtual size_t
+    GetPendingGdbServerList(std::vector<std::string>& connection_urls);
+
 protected:
     process_gdb_remote::GDBRemoteCommunicationClient m_gdb_client;
     std::string m_platform_description; // After we connect we can get a more complete description of what we are connected to
@@ -225,16 +235,29 @@ protected:
 
     lldb::UnixSignalsSP m_remote_signals_sp;
 
-    // Launch the lldb-gdbserver on the remote host and return the port it is listening on or 0 on
-    // failure. Subclasses should override this method if they want to do extra actions before or
-    // after launching the lldb-gdbserver.
-    virtual uint16_t
-    LaunchGDBserverAndGetPort (lldb::pid_t &pid);
+    // Launch the debug server on the remote host - caller connects to launched
+    // debug server using connect_url.
+    // Subclasses should override this method if they want to do extra actions before or
+    // after launching the debug server.
+    virtual bool
+    LaunchGDBServer (lldb::pid_t &pid, std::string &connect_url);
 
     virtual bool
     KillSpawnedProcess (lldb::pid_t pid);
 
+    virtual std::string
+    MakeUrl(const char* scheme,
+            const char* hostname,
+            uint16_t port,
+            const char* path);
+
 private:
+    std::string
+    MakeGdbServerUrl(const std::string &platform_scheme,
+                     const std::string &platform_hostname,
+                     uint16_t port,
+                     const char* socket_name);
+
     DISALLOW_COPY_AND_ASSIGN (PlatformRemoteGDBServer);
 
 };
diff --git a/source/Plugins/Process/FreeBSD/FreeBSDThread.cpp b/source/Plugins/Process/FreeBSD/FreeBSDThread.cpp
index 5e46c836beac6..2b292442399ff 100644
--- a/source/Plugins/Process/FreeBSD/FreeBSDThread.cpp
+++ b/source/Plugins/Process/FreeBSD/FreeBSDThread.cpp
@@ -8,33 +8,288 @@
 //===----------------------------------------------------------------------===//
 
 // C Includes
+#include <errno.h>
+
 // C++ Includes
 // Other libraries and framework includes
 #include "lldb/Core/State.h"
 #include "lldb/Target/UnixSignals.h"
 
 // Project includes
+#include "lldb/Breakpoint/Watchpoint.h"
+#include "lldb/Breakpoint/BreakpointLocation.h"
+#include "lldb/Core/Debugger.h"
+#include "lldb/Core/State.h"
+#include "lldb/Host/Host.h"
+#include "lldb/Host/HostNativeThread.h"
+#include "lldb/Host/HostInfo.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/StopInfo.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Target/ThreadSpec.h"
+#include "llvm/ADT/SmallString.h"
+#include "POSIXStopInfo.h"
 #include "FreeBSDThread.h"
 #include "ProcessFreeBSD.h"
 #include "ProcessPOSIXLog.h"
+#include "ProcessMonitor.h"
+#include "RegisterContextPOSIXProcessMonitor_arm.h"
+#include "RegisterContextPOSIXProcessMonitor_arm64.h"
+#include "RegisterContextPOSIXProcessMonitor_mips64.h"
+#include "RegisterContextPOSIXProcessMonitor_powerpc.h"
+#include "RegisterContextPOSIXProcessMonitor_x86.h"
+#include "Plugins/Process/Utility/RegisterContextFreeBSD_arm.h"
+#include "Plugins/Process/Utility/RegisterContextFreeBSD_arm64.h"
+#include "Plugins/Process/Utility/RegisterContextFreeBSD_i386.h"
+#include "Plugins/Process/Utility/RegisterContextFreeBSD_mips64.h"
+#include "Plugins/Process/Utility/RegisterContextFreeBSD_powerpc.h"
+#include "Plugins/Process/Utility/RegisterContextFreeBSD_x86_64.h"
+#include "Plugins/Process/Utility/UnwindLLDB.h"
 
 using namespace lldb;
 using namespace lldb_private;
 
-//------------------------------------------------------------------------------
-// Constructors and destructors.
-
 FreeBSDThread::FreeBSDThread(Process &process, lldb::tid_t tid)
-    : POSIXThread(process, tid)
+    : Thread(process, tid),
+      m_frame_ap (),
+      m_breakpoint (),
+      m_thread_name_valid (false),
+      m_thread_name (),
+      m_posix_thread(NULL)
 {
+    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
+    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
+        log->Printf ("FreeBSDThread::%s (tid = %" PRIi64 ")", __FUNCTION__, tid);
+
+    // Set the current watchpoints for this thread.
+    Target &target = GetProcess()->GetTarget();
+    const WatchpointList &wp_list = target.GetWatchpointList();
+    size_t wp_size = wp_list.GetSize();
+
+    for (uint32_t wp_idx = 0; wp_idx < wp_size; wp_idx++)
+    {
+        lldb::WatchpointSP wp = wp_list.GetByIndex(wp_idx);
+        if (wp.get() && wp->IsEnabled())
+        {
+            // This watchpoint as been enabled; obviously this "new" thread
+            // has been created since that watchpoint was enabled.  Since
+            // the POSIXBreakpointProtocol has yet to be initialized, its
+            // m_watchpoints_initialized member will be FALSE.  Attempting to
+            // read the debug status register to determine if a watchpoint
+            // has been hit would result in the zeroing of that register.
+            // Since the active debug registers would have been cloned when
+            // this thread was created, simply force the m_watchpoints_initized
+            // member to TRUE and avoid resetting dr6 and dr7.
+            GetPOSIXBreakpointProtocol()->ForceWatchpointsInitialized();
+        }
+    }
 }
 
 FreeBSDThread::~FreeBSDThread()
 {
+    DestroyThread();
+}
+
+ProcessMonitor &
+FreeBSDThread::GetMonitor()
+{
+    ProcessSP base = GetProcess();
+    ProcessFreeBSD &process = static_cast<ProcessFreeBSD&>(*base);
+    return process.GetMonitor();
+}
+
+void
+FreeBSDThread::RefreshStateAfterStop()
+{
+    // Invalidate all registers in our register context. We don't set "force" to
+    // true because the stop reply packet might have had some register values
+    // that were expedited and these will already be copied into the register
+    // context by the time this function gets called. The KDPRegisterContext
+    // class has been made smart enough to detect when it needs to invalidate
+    // which registers are valid by putting hooks in the register read and 
+    // register supply functions where they check the process stop ID and do
+    // the right thing.
+    //if (StateIsStoppedState(GetState())
+    {
+        const bool force = false;
+        GetRegisterContext()->InvalidateIfNeeded (force);
+    }
 }
 
-//------------------------------------------------------------------------------
-// ProcessInterface protocol.
+const char *
+FreeBSDThread::GetInfo()
+{
+    return NULL;
+}
+
+void
+FreeBSDThread::SetName (const char *name)
+{
+    m_thread_name_valid = (name && name[0]);
+    if (m_thread_name_valid)
+        m_thread_name.assign (name);
+    else
+        m_thread_name.clear();
+}
+
+const char *
+FreeBSDThread::GetName ()
+{
+    if (!m_thread_name_valid)
+    {
+        llvm::SmallString<32> thread_name;
+        HostNativeThread::GetName(GetID(), thread_name);
+        m_thread_name = thread_name.c_str();
+        m_thread_name_valid = true;
+    }
+
+    if (m_thread_name.empty())
+        return NULL;
+    return m_thread_name.c_str();
+}
+
+lldb::RegisterContextSP
+FreeBSDThread::GetRegisterContext()
+{
+    if (!m_reg_context_sp)
+    {
+        m_posix_thread = NULL;
+
+        RegisterInfoInterface *reg_interface = NULL;
+        const ArchSpec &target_arch = GetProcess()->GetTarget().GetArchitecture();
+
+        assert(target_arch.GetTriple().getOS() == llvm::Triple::FreeBSD);
+        switch (target_arch.GetMachine())
+        {
+            case llvm::Triple::aarch64:
+                reg_interface = new RegisterContextFreeBSD_arm64(target_arch);
+                break;
+            case llvm::Triple::arm:
+                reg_interface = new RegisterContextFreeBSD_arm(target_arch);
+                break;
+            case llvm::Triple::ppc:
+#ifndef __powerpc64__
+                reg_interface = new RegisterContextFreeBSD_powerpc32(target_arch);
+                break;
+#endif
+            case llvm::Triple::ppc64:
+                reg_interface = new RegisterContextFreeBSD_powerpc64(target_arch);
+                break;
+            case llvm::Triple::mips64:
+                reg_interface = new RegisterContextFreeBSD_mips64(target_arch);
+                break;
+            case llvm::Triple::x86:
+                reg_interface = new RegisterContextFreeBSD_i386(target_arch);
+                break;
+            case llvm::Triple::x86_64:
+                reg_interface = new RegisterContextFreeBSD_x86_64(target_arch);
+                break;
+            default:
+                llvm_unreachable("CPU not supported");
+        }
+
+        switch (target_arch.GetMachine())
+        {
+            case llvm::Triple::aarch64:
+                {
+                    RegisterContextPOSIXProcessMonitor_arm64 *reg_ctx = new RegisterContextPOSIXProcessMonitor_arm64(*this, 0, reg_interface);
+                    m_posix_thread = reg_ctx;
+                    m_reg_context_sp.reset(reg_ctx);
+                    break;
+                }
+            case llvm::Triple::arm:
+                {
+                    RegisterContextPOSIXProcessMonitor_arm *reg_ctx = new RegisterContextPOSIXProcessMonitor_arm(*this, 0, reg_interface);
+                    m_posix_thread = reg_ctx;
+                    m_reg_context_sp.reset(reg_ctx);
+                    break;
+                }
+            case llvm::Triple::mips64:
+                {
+                    RegisterContextPOSIXProcessMonitor_mips64 *reg_ctx = new RegisterContextPOSIXProcessMonitor_mips64(*this, 0, reg_interface);
+                    m_posix_thread = reg_ctx;
+                    m_reg_context_sp.reset(reg_ctx);
+                    break;
+                }
+            case llvm::Triple::ppc:
+            case llvm::Triple::ppc64:
+                {
+                    RegisterContextPOSIXProcessMonitor_powerpc *reg_ctx = new RegisterContextPOSIXProcessMonitor_powerpc(*this, 0, reg_interface);
+                    m_posix_thread = reg_ctx;
+                    m_reg_context_sp.reset(reg_ctx);
+                    break;
+                }
+            case llvm::Triple::x86:
+            case llvm::Triple::x86_64:
+                {
+                    RegisterContextPOSIXProcessMonitor_x86_64 *reg_ctx = new RegisterContextPOSIXProcessMonitor_x86_64(*this, 0, reg_interface);
+                    m_posix_thread = reg_ctx;
+                    m_reg_context_sp.reset(reg_ctx);
+                    break;
+                }
+            default:
+                break;
+        }
+    }
+    return m_reg_context_sp;
+}
+
+lldb::RegisterContextSP
+FreeBSDThread::CreateRegisterContextForFrame(lldb_private::StackFrame *frame)
+{
+    lldb::RegisterContextSP reg_ctx_sp;
+    uint32_t concrete_frame_idx = 0;
+
+    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
+    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
+        log->Printf ("FreeBSDThread::%s ()", __FUNCTION__);
+
+    if (frame)
+        concrete_frame_idx = frame->GetConcreteFrameIndex();
+
+    if (concrete_frame_idx == 0)
+        reg_ctx_sp = GetRegisterContext();
+    else
+    {
+        assert(GetUnwinder());
+        reg_ctx_sp = GetUnwinder()->CreateRegisterContextForFrame(frame);
+    }
+
+    return reg_ctx_sp;
+}
+
+lldb::addr_t
+FreeBSDThread::GetThreadPointer ()
+{
+    ProcessMonitor &monitor = GetMonitor();
+    addr_t addr;
+    if (monitor.ReadThreadPointer (GetID(), addr))
+        return addr;
+    else
+        return LLDB_INVALID_ADDRESS;
+}
+
+bool
+FreeBSDThread::CalculateStopInfo()
+{
+    SetStopInfo (m_stop_info_sp);
+    return true;
+}
+
+Unwind *
+FreeBSDThread::GetUnwinder()
+{
+    if (m_unwinder_ap.get() == NULL)
+        m_unwinder_ap.reset(new UnwindLLDB(*this));
+
+    return m_unwinder_ap.get();
+}
+
+void
+FreeBSDThread::DidStop()
+{
+    // Don't set the thread state to stopped unless we really stopped.
+}
 
 void
 FreeBSDThread::WillResume(lldb::StateType resume_state)
@@ -68,3 +323,359 @@ FreeBSDThread::WillResume(lldb::StateType resume_state)
         break;
     }
 }
+
+bool
+FreeBSDThread::Resume()
+{
+    lldb::StateType resume_state = GetResumeState();
+    ProcessMonitor &monitor = GetMonitor();
+    bool status;
+
+    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
+    if (log)
+        log->Printf ("FreeBSDThread::%s (), resume_state = %s", __FUNCTION__,
+                         StateAsCString(resume_state));
+
+    switch (resume_state)
+    {
+    default:
+        assert(false && "Unexpected state for resume!");
+        status = false;
+        break;
+
+    case lldb::eStateRunning:
+        SetState(resume_state);
+        status = monitor.Resume(GetID(), GetResumeSignal());
+        break;
+
+    case lldb::eStateStepping:
+        SetState(resume_state);
+        status = monitor.SingleStep(GetID(), GetResumeSignal());
+        break;
+    case lldb::eStateStopped:
+    case lldb::eStateSuspended:
+        status = true;
+        break;
+    }
+
+    return status;
+}
+
+void
+FreeBSDThread::Notify(const ProcessMessage &message)
+{
+    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
+    if (log)
+        log->Printf ("FreeBSDThread::%s () message kind = '%s' for tid %" PRIu64,
+                     __FUNCTION__, message.PrintKind(), GetID());
+
+    switch (message.GetKind())
+    {
+    default:
+        assert(false && "Unexpected message kind!");
+        break;
+
+    case ProcessMessage::eExitMessage:
+        // Nothing to be done.
+        break;
+
+    case ProcessMessage::eLimboMessage:
+        LimboNotify(message);
+        break;
+
+    case ProcessMessage::eSignalMessage:
+        SignalNotify(message);
+        break;
+
+    case ProcessMessage::eSignalDeliveredMessage:
+        SignalDeliveredNotify(message);
+        break;
+
+    case ProcessMessage::eTraceMessage:
+        TraceNotify(message);
+        break;
+
+    case ProcessMessage::eBreakpointMessage:
+        BreakNotify(message);
+        break;
+
+    case ProcessMessage::eWatchpointMessage:
+        WatchNotify(message);
+        break;
+
+    case ProcessMessage::eCrashMessage:
+        CrashNotify(message);
+        break;
+
+    case ProcessMessage::eExecMessage:
+        ExecNotify(message);
+        break;
+    }
+}
+
+bool
+FreeBSDThread::EnableHardwareWatchpoint(Watchpoint *wp)
+{
+    bool wp_set = false;
+    if (wp)
+    {
+        addr_t wp_addr = wp->GetLoadAddress();
+        size_t wp_size = wp->GetByteSize();
+        bool wp_read = wp->WatchpointRead();
+        bool wp_write = wp->WatchpointWrite();
+        uint32_t wp_hw_index = wp->GetHardwareIndex();
+        POSIXBreakpointProtocol* reg_ctx = GetPOSIXBreakpointProtocol();
+        if (reg_ctx)
+            wp_set = reg_ctx->SetHardwareWatchpointWithIndex(wp_addr, wp_size,
+                                                             wp_read, wp_write,
+                                                             wp_hw_index);
+    }
+    return wp_set;
+}
+
+bool
+FreeBSDThread::DisableHardwareWatchpoint(Watchpoint *wp)
+{
+    bool result = false;
+    if (wp)
+    {
+        lldb::RegisterContextSP reg_ctx_sp = GetRegisterContext();
+        if (reg_ctx_sp.get())
+            result = reg_ctx_sp->ClearHardwareWatchpoint(wp->GetHardwareIndex());
+    }
+    return result;
+}
+
+uint32_t
+FreeBSDThread::NumSupportedHardwareWatchpoints()
+{
+    lldb::RegisterContextSP reg_ctx_sp = GetRegisterContext();
+    if (reg_ctx_sp.get())
+        return reg_ctx_sp->NumSupportedHardwareWatchpoints();
+    return 0;
+}
+
+uint32_t
+FreeBSDThread::FindVacantWatchpointIndex()
+{
+    uint32_t hw_index = LLDB_INVALID_INDEX32;
+    uint32_t num_hw_wps = NumSupportedHardwareWatchpoints();
+    uint32_t wp_idx;
+    POSIXBreakpointProtocol* reg_ctx = GetPOSIXBreakpointProtocol();
+    if (reg_ctx)
+    {
+        for (wp_idx = 0; wp_idx < num_hw_wps; wp_idx++)
+        {
+            if (reg_ctx->IsWatchpointVacant(wp_idx))
+            {
+                hw_index = wp_idx;
+                break;
+            }
+        }
+    }
+    return hw_index;
+}
+
+void
+FreeBSDThread::BreakNotify(const ProcessMessage &message)
+{
+    bool status;
+    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
+
+    assert(GetRegisterContext());
+    status = GetPOSIXBreakpointProtocol()->UpdateAfterBreakpoint();
+    assert(status && "Breakpoint update failed!");
+
+    // With our register state restored, resolve the breakpoint object
+    // corresponding to our current PC.
+    assert(GetRegisterContext());
+    lldb::addr_t pc = GetRegisterContext()->GetPC();
+    if (log)
+        log->Printf ("FreeBSDThread::%s () PC=0x%8.8" PRIx64, __FUNCTION__, pc);
+    lldb::BreakpointSiteSP bp_site(GetProcess()->GetBreakpointSiteList().FindByAddress(pc));
+
+    // If the breakpoint is for this thread, then we'll report the hit, but if it is for another thread,
+    // we create a stop reason with should_stop=false.  If there is no breakpoint location, then report
+    // an invalid stop reason. We don't need to worry about stepping over the breakpoint here, that will
+    // be taken care of when the thread resumes and notices that there's a breakpoint under the pc.
+    if (bp_site)
+    {
+        lldb::break_id_t bp_id = bp_site->GetID();
+        // If we have an operating system plug-in, we might have set a thread specific breakpoint using the
+        // operating system thread ID, so we can't make any assumptions about the thread ID so we must always
+        // report the breakpoint regardless of the thread.
+        if (bp_site->ValidForThisThread(this) || GetProcess()->GetOperatingSystem () != NULL)
+            SetStopInfo (StopInfo::CreateStopReasonWithBreakpointSiteID(*this, bp_id));
+        else
+        {
+            const bool should_stop = false;
+            SetStopInfo (StopInfo::CreateStopReasonWithBreakpointSiteID(*this, bp_id, should_stop));
+        }
+    }
+    else
+        SetStopInfo(StopInfoSP());
+}
+
+void
+FreeBSDThread::WatchNotify(const ProcessMessage &message)
+{
+    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
+
+    lldb::addr_t halt_addr = message.GetHWAddress();
+    if (log)
+        log->Printf ("FreeBSDThread::%s () Hardware Watchpoint Address = 0x%8.8"
+                     PRIx64, __FUNCTION__, halt_addr);
+
+    POSIXBreakpointProtocol* reg_ctx = GetPOSIXBreakpointProtocol();
+    if (reg_ctx)
+    {
+        uint32_t num_hw_wps = reg_ctx->NumSupportedHardwareWatchpoints();
+        uint32_t wp_idx;
+        for (wp_idx = 0; wp_idx < num_hw_wps; wp_idx++)
+        {
+            if (reg_ctx->IsWatchpointHit(wp_idx))
+            {
+                // Clear the watchpoint hit here
+                reg_ctx->ClearWatchpointHits();
+                break;
+            }
+        }
+
+        if (wp_idx == num_hw_wps)
+            return;
+
+        Target &target = GetProcess()->GetTarget();
+        lldb::addr_t wp_monitor_addr = reg_ctx->GetWatchpointAddress(wp_idx);
+        const WatchpointList &wp_list = target.GetWatchpointList();
+        lldb::WatchpointSP wp_sp = wp_list.FindByAddress(wp_monitor_addr);
+
+        assert(wp_sp.get() && "No watchpoint found");
+        SetStopInfo (StopInfo::CreateStopReasonWithWatchpointID(*this,
+                                                                wp_sp->GetID()));
+    }
+}
+
+void
+FreeBSDThread::TraceNotify(const ProcessMessage &message)
+{
+    POSIXBreakpointProtocol* reg_ctx = GetPOSIXBreakpointProtocol();
+    if (reg_ctx)
+    {
+        uint32_t num_hw_wps = reg_ctx->NumSupportedHardwareWatchpoints();
+        uint32_t wp_idx;
+        for (wp_idx = 0; wp_idx < num_hw_wps; wp_idx++)
+        {
+            if (reg_ctx->IsWatchpointHit(wp_idx))
+            {
+                WatchNotify(message);
+                return;
+            }
+        }
+    }
+
+    SetStopInfo (StopInfo::CreateStopReasonToTrace(*this));
+}
+
+void
+FreeBSDThread::LimboNotify(const ProcessMessage &message)
+{
+    SetStopInfo (lldb::StopInfoSP(new POSIXLimboStopInfo(*this)));
+}
+
+void
+FreeBSDThread::SignalNotify(const ProcessMessage &message)
+{
+    int signo = message.GetSignal();
+    SetStopInfo (StopInfo::CreateStopReasonWithSignal(*this, signo));
+}
+
+void
+FreeBSDThread::SignalDeliveredNotify(const ProcessMessage &message)
+{
+    int signo = message.GetSignal();
+    SetStopInfo (StopInfo::CreateStopReasonWithSignal(*this, signo));
+}
+
+void
+FreeBSDThread::CrashNotify(const ProcessMessage &message)
+{
+    // FIXME: Update stop reason as per bugzilla 14598
+    int signo = message.GetSignal();
+
+    assert(message.GetKind() == ProcessMessage::eCrashMessage);
+
+    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
+    if (log)
+        log->Printf ("FreeBSDThread::%s () signo = %i, reason = '%s'",
+                     __FUNCTION__, signo, message.PrintCrashReason());
+
+    SetStopInfo (lldb::StopInfoSP(new POSIXCrashStopInfo(*this, signo,
+                                                         message.GetCrashReason(),
+                                                         message.GetFaultAddress())));
+}
+
+unsigned
+FreeBSDThread::GetRegisterIndexFromOffset(unsigned offset)
+{
+    unsigned reg = LLDB_INVALID_REGNUM;
+    ArchSpec arch = HostInfo::GetArchitecture();
+
+    switch (arch.GetMachine())
+    {
+    default:
+        llvm_unreachable("CPU type not supported!");
+        break;
+
+    case llvm::Triple::aarch64:
+    case llvm::Triple::arm:
+    case llvm::Triple::mips64:
+    case llvm::Triple::ppc:
+    case llvm::Triple::ppc64:
+    case llvm::Triple::x86:
+    case llvm::Triple::x86_64:
+        {
+            POSIXBreakpointProtocol* reg_ctx = GetPOSIXBreakpointProtocol();
+            reg = reg_ctx->GetRegisterIndexFromOffset(offset);
+        }
+        break;
+    }
+    return reg;
+}
+
+void
+FreeBSDThread::ExecNotify(const ProcessMessage &message)
+{
+    SetStopInfo (StopInfo::CreateStopReasonWithExec(*this));
+}
+
+const char *
+FreeBSDThread::GetRegisterName(unsigned reg)
+{
+    const char * name = nullptr;
+    ArchSpec arch = HostInfo::GetArchitecture();
+
+    switch (arch.GetMachine())
+    {
+    default:
+        assert(false && "CPU type not supported!");
+        break;
+
+    case llvm::Triple::aarch64:
+    case llvm::Triple::arm:
+    case llvm::Triple::mips64:
+    case llvm::Triple::ppc:
+    case llvm::Triple::ppc64:
+    case llvm::Triple::x86:
+    case llvm::Triple::x86_64:
+        name = GetRegisterContext()->GetRegisterName(reg);
+        break;
+    }
+    return name;
+}
+
+const char *
+FreeBSDThread::GetRegisterNameFromOffset(unsigned offset)
+{
+    return GetRegisterName(GetRegisterIndexFromOffset(offset));
+}
+
diff --git a/source/Plugins/Process/FreeBSD/FreeBSDThread.h b/source/Plugins/Process/FreeBSD/FreeBSDThread.h
index 8741075cb60be..90c11dbefcb0d 100644
--- a/source/Plugins/Process/FreeBSD/FreeBSDThread.h
+++ b/source/Plugins/Process/FreeBSD/FreeBSDThread.h
@@ -10,14 +10,23 @@
 #ifndef liblldb_FreeBSDThread_H_
 #define liblldb_FreeBSDThread_H_
 
+// C++ Includes
+#include <memory>
+#include <string>
+
 // Other libraries and framework includes
-#include "POSIXThread.h"
+#include "lldb/Target/Thread.h"
+#include "RegisterContextPOSIX.h"
+
+class ProcessMessage;
+class ProcessMonitor;
+class POSIXBreakpointProtocol;
 
 //------------------------------------------------------------------------------
 // @class FreeBSDThread
 // @brief Abstraction of a FreeBSD thread.
 class FreeBSDThread
-    : public POSIXThread
+    : public lldb_private::Thread
 {
 public:
 
@@ -28,12 +37,106 @@ public:
 
     virtual ~FreeBSDThread();
 
+    // POSIXThread
+    void
+    RefreshStateAfterStop() override;
+
+    // This notifies the thread when a private stop occurs.
+    void
+    DidStop () override;
+
+    const char *
+    GetInfo() override;
+
+    void
+    SetName (const char *name) override;
+
+    const char *
+    GetName () override;
+
+    lldb::RegisterContextSP
+    GetRegisterContext() override;
+
+    lldb::RegisterContextSP
+    CreateRegisterContextForFrame (lldb_private::StackFrame *frame) override;
+
+    lldb::addr_t
+    GetThreadPointer () override;
+
+    //--------------------------------------------------------------------------
+    // These functions provide a mapping from the register offset
+    // back to the register index or name for use in debugging or log
+    // output.
+
+    unsigned
+    GetRegisterIndexFromOffset(unsigned offset);
+
+    const char *
+    GetRegisterName(unsigned reg);
+
+    const char *
+    GetRegisterNameFromOffset(unsigned offset);
+
+    //--------------------------------------------------------------------------
+    // These methods form a specialized interface to POSIX threads.
+    //
+    bool Resume();
+
+    void Notify(const ProcessMessage &message);
+
+    //--------------------------------------------------------------------------
+    // These methods provide an interface to watchpoints
+    //
+    bool EnableHardwareWatchpoint(lldb_private::Watchpoint *wp);
+
+    bool DisableHardwareWatchpoint(lldb_private::Watchpoint *wp);
+
+    uint32_t NumSupportedHardwareWatchpoints();
+
+    uint32_t FindVacantWatchpointIndex();
+
+protected:
+    POSIXBreakpointProtocol *
+    GetPOSIXBreakpointProtocol ()
+    {
+        if (!m_reg_context_sp)
+            m_reg_context_sp = GetRegisterContext();
+        return m_posix_thread;
+    }
+    
+    std::unique_ptr<lldb_private::StackFrame> m_frame_ap;
+
+    lldb::BreakpointSiteSP m_breakpoint;
+
+    bool m_thread_name_valid;
+    std::string m_thread_name;
+    POSIXBreakpointProtocol *m_posix_thread;
+
+    ProcessMonitor &
+    GetMonitor();
+
+    bool
+    CalculateStopInfo() override;
+
+    void BreakNotify(const ProcessMessage &message);
+    void WatchNotify(const ProcessMessage &message);
+    virtual void TraceNotify(const ProcessMessage &message);
+    void LimboNotify(const ProcessMessage &message);
+    void SignalNotify(const ProcessMessage &message);
+    void SignalDeliveredNotify(const ProcessMessage &message);
+    void CrashNotify(const ProcessMessage &message);
+    void ExitNotify(const ProcessMessage &message);
+    void ExecNotify(const ProcessMessage &message);
+
+    lldb_private::Unwind *
+    GetUnwinder() override;
+
     //--------------------------------------------------------------------------
     // FreeBSDThread internal API.
 
     // POSIXThread override
     virtual void
-    WillResume(lldb::StateType resume_state);
+    WillResume(lldb::StateType resume_state) override;
 };
 
 #endif // #ifndef liblldb_FreeBSDThread_H_
diff --git a/source/Plugins/Process/FreeBSD/POSIXStopInfo.cpp b/source/Plugins/Process/FreeBSD/POSIXStopInfo.cpp
index 3b8cea737bcbd..409cf8c46b030 100644
--- a/source/Plugins/Process/FreeBSD/POSIXStopInfo.cpp
+++ b/source/Plugins/Process/FreeBSD/POSIXStopInfo.cpp
@@ -45,7 +45,7 @@ POSIXLimboStopInfo::ShouldNotify(Event *event_ptr)
 //===----------------------------------------------------------------------===//
 // POSIXCrashStopInfo
 
-POSIXCrashStopInfo::POSIXCrashStopInfo(POSIXThread &thread,
+POSIXCrashStopInfo::POSIXCrashStopInfo(FreeBSDThread &thread,
                                        uint32_t status,
                                        CrashReason reason,
                                        lldb::addr_t fault_addr)
diff --git a/source/Plugins/Process/FreeBSD/POSIXStopInfo.h b/source/Plugins/Process/FreeBSD/POSIXStopInfo.h
index a1ee2ea685244..ace6c98017b77 100644
--- a/source/Plugins/Process/FreeBSD/POSIXStopInfo.h
+++ b/source/Plugins/Process/FreeBSD/POSIXStopInfo.h
@@ -17,7 +17,7 @@
 #include "lldb/Target/StopInfo.h"
 
 #include "CrashReason.h"
-#include "POSIXThread.h"
+#include "FreeBSDThread.h"
 
 #include <string>
 
@@ -42,7 +42,7 @@ class POSIXLimboStopInfo
     : public POSIXStopInfo
 {
 public:
-    POSIXLimboStopInfo(POSIXThread &thread)
+    POSIXLimboStopInfo(FreeBSDThread &thread)
         : POSIXStopInfo(thread, 0)
         { }
 
@@ -70,7 +70,7 @@ class POSIXCrashStopInfo
     : public POSIXStopInfo
 {
 public:
-    POSIXCrashStopInfo(POSIXThread &thread, uint32_t status,
+    POSIXCrashStopInfo(FreeBSDThread &thread, uint32_t status,
                        CrashReason reason,
                        lldb::addr_t fault_addr);
     ~POSIXCrashStopInfo();
@@ -88,7 +88,7 @@ class POSIXNewThreadStopInfo
     : public POSIXStopInfo
 {
 public:
-    POSIXNewThreadStopInfo (POSIXThread &thread)
+    POSIXNewThreadStopInfo (FreeBSDThread &thread)
         : POSIXStopInfo (thread, 0)
         { }
 
diff --git a/source/Plugins/Process/FreeBSD/POSIXThread.cpp b/source/Plugins/Process/FreeBSD/POSIXThread.cpp
deleted file mode 100644
index 854796fb7448c..0000000000000
--- a/source/Plugins/Process/FreeBSD/POSIXThread.cpp
+++ /dev/null
@@ -1,661 +0,0 @@
-//===-- POSIXThread.cpp -----------------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-// C Includes
-#include <errno.h>
-
-// C++ Includes
-// Other libraries and framework includes
-// Project includes
-#include "lldb/Breakpoint/Watchpoint.h"
-#include "lldb/Breakpoint/BreakpointLocation.h"
-#include "lldb/Core/Debugger.h"
-#include "lldb/Core/State.h"
-#include "lldb/Host/Host.h"
-#include "lldb/Host/HostNativeThread.h"
-#include "lldb/Host/HostInfo.h"
-#include "lldb/Target/Process.h"
-#include "lldb/Target/StopInfo.h"
-#include "lldb/Target/Target.h"
-#include "lldb/Target/ThreadSpec.h"
-#include "llvm/ADT/SmallString.h"
-#include "POSIXStopInfo.h"
-#include "POSIXThread.h"
-#include "ProcessPOSIX.h"
-#include "ProcessPOSIXLog.h"
-#include "ProcessMonitor.h"
-#include "RegisterContextPOSIXProcessMonitor_arm.h"
-#include "RegisterContextPOSIXProcessMonitor_arm64.h"
-#include "RegisterContextPOSIXProcessMonitor_mips64.h"
-#include "RegisterContextPOSIXProcessMonitor_powerpc.h"
-#include "RegisterContextPOSIXProcessMonitor_x86.h"
-#include "Plugins/Process/Utility/RegisterContextFreeBSD_arm.h"
-#include "Plugins/Process/Utility/RegisterContextFreeBSD_i386.h"
-#include "Plugins/Process/Utility/RegisterContextFreeBSD_mips64.h"
-#include "Plugins/Process/Utility/RegisterContextFreeBSD_powerpc.h"
-#include "Plugins/Process/Utility/RegisterContextFreeBSD_x86_64.h"
-#include "Plugins/Process/Utility/UnwindLLDB.h"
-
-using namespace lldb;
-using namespace lldb_private;
-
-
-POSIXThread::POSIXThread(Process &process, lldb::tid_t tid)
-    : Thread(process, tid),
-      m_frame_ap (),
-      m_breakpoint (),
-      m_thread_name_valid (false),
-      m_thread_name (),
-      m_posix_thread(NULL)
-{
-    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
-    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
-        log->Printf ("POSIXThread::%s (tid = %" PRIi64 ")", __FUNCTION__, tid);
-
-    // Set the current watchpoints for this thread.
-    Target &target = GetProcess()->GetTarget();
-    const WatchpointList &wp_list = target.GetWatchpointList();
-    size_t wp_size = wp_list.GetSize();
-
-    for (uint32_t wp_idx = 0; wp_idx < wp_size; wp_idx++)
-    {
-        lldb::WatchpointSP wp = wp_list.GetByIndex(wp_idx);
-        if (wp.get() && wp->IsEnabled())
-        {
-            // This watchpoint as been enabled; obviously this "new" thread
-            // has been created since that watchpoint was enabled.  Since
-            // the POSIXBreakpointProtocol has yet to be initialized, its
-            // m_watchpoints_initialized member will be FALSE.  Attempting to
-            // read the debug status register to determine if a watchpoint
-            // has been hit would result in the zeroing of that register.
-            // Since the active debug registers would have been cloned when
-            // this thread was created, simply force the m_watchpoints_initized
-            // member to TRUE and avoid resetting dr6 and dr7.
-            GetPOSIXBreakpointProtocol()->ForceWatchpointsInitialized();
-        }
-    }
-}
-
-POSIXThread::~POSIXThread()
-{
-    DestroyThread();
-}
-
-ProcessMonitor &
-POSIXThread::GetMonitor()
-{
-    ProcessSP base = GetProcess();
-    ProcessPOSIX &process = static_cast<ProcessPOSIX&>(*base);
-    return process.GetMonitor();
-}
-
-void
-POSIXThread::RefreshStateAfterStop()
-{
-    // Invalidate all registers in our register context. We don't set "force" to
-    // true because the stop reply packet might have had some register values
-    // that were expedited and these will already be copied into the register
-    // context by the time this function gets called. The KDPRegisterContext
-    // class has been made smart enough to detect when it needs to invalidate
-    // which registers are valid by putting hooks in the register read and 
-    // register supply functions where they check the process stop ID and do
-    // the right thing.
-    //if (StateIsStoppedState(GetState())
-    {
-        const bool force = false;
-        GetRegisterContext()->InvalidateIfNeeded (force);
-    }
-}
-
-const char *
-POSIXThread::GetInfo()
-{
-    return NULL;
-}
-
-void
-POSIXThread::SetName (const char *name)
-{
-    m_thread_name_valid = (name && name[0]);
-    if (m_thread_name_valid)
-        m_thread_name.assign (name);
-    else
-        m_thread_name.clear();
-}
-
-const char *
-POSIXThread::GetName ()
-{
-    if (!m_thread_name_valid)
-    {
-        llvm::SmallString<32> thread_name;
-        HostNativeThread::GetName(GetID(), thread_name);
-        m_thread_name = thread_name.c_str();
-        m_thread_name_valid = true;
-    }
-
-    if (m_thread_name.empty())
-        return NULL;
-    return m_thread_name.c_str();
-}
-
-lldb::RegisterContextSP
-POSIXThread::GetRegisterContext()
-{
-    if (!m_reg_context_sp)
-    {
-        m_posix_thread = NULL;
-
-        RegisterInfoInterface *reg_interface = NULL;
-        const ArchSpec &target_arch = GetProcess()->GetTarget().GetArchitecture();
-
-        switch (target_arch.GetTriple().getOS())
-        {
-            case llvm::Triple::FreeBSD:
-                switch (target_arch.GetMachine())
-                {
-                    case llvm::Triple::arm:
-                        reg_interface = new RegisterContextFreeBSD_arm(target_arch);
-                        break;
-                    case llvm::Triple::ppc:
-#ifndef __powerpc64__
-                        reg_interface = new RegisterContextFreeBSD_powerpc32(target_arch);
-                        break;
-#endif
-                    case llvm::Triple::ppc64:
-                        reg_interface = new RegisterContextFreeBSD_powerpc64(target_arch);
-                        break;
-                    case llvm::Triple::mips64:
-                        reg_interface = new RegisterContextFreeBSD_mips64(target_arch);
-                        break;
-                    case llvm::Triple::x86:
-                        reg_interface = new RegisterContextFreeBSD_i386(target_arch);
-                        break;
-                    case llvm::Triple::x86_64:
-                        reg_interface = new RegisterContextFreeBSD_x86_64(target_arch);
-                        break;
-                    default:
-                        break;
-                }
-                break;
-
-            default:
-                break;
-        }
-
-        assert(reg_interface && "OS or CPU not supported!");
-
-        switch (target_arch.GetMachine())
-        {
-            case llvm::Triple::aarch64:
-                {
-                    RegisterContextPOSIXProcessMonitor_arm64 *reg_ctx = new RegisterContextPOSIXProcessMonitor_arm64(*this, 0, reg_interface);
-                    m_posix_thread = reg_ctx;
-                    m_reg_context_sp.reset(reg_ctx);
-                    break;
-                }
-            case llvm::Triple::arm:
-                {
-                    RegisterContextPOSIXProcessMonitor_arm *reg_ctx = new RegisterContextPOSIXProcessMonitor_arm(*this, 0, reg_interface);
-                    m_posix_thread = reg_ctx;
-                    m_reg_context_sp.reset(reg_ctx);
-                    break;
-                }
-            case llvm::Triple::mips64:
-                {
-                    RegisterContextPOSIXProcessMonitor_mips64 *reg_ctx = new RegisterContextPOSIXProcessMonitor_mips64(*this, 0, reg_interface);
-                    m_posix_thread = reg_ctx;
-                    m_reg_context_sp.reset(reg_ctx);
-                    break;
-                }
-            case llvm::Triple::ppc:
-            case llvm::Triple::ppc64:
-                {
-                    RegisterContextPOSIXProcessMonitor_powerpc *reg_ctx = new RegisterContextPOSIXProcessMonitor_powerpc(*this, 0, reg_interface);
-                    m_posix_thread = reg_ctx;
-                    m_reg_context_sp.reset(reg_ctx);
-                    break;
-                }
-            case llvm::Triple::x86:
-            case llvm::Triple::x86_64:
-                {
-                    RegisterContextPOSIXProcessMonitor_x86_64 *reg_ctx = new RegisterContextPOSIXProcessMonitor_x86_64(*this, 0, reg_interface);
-                    m_posix_thread = reg_ctx;
-                    m_reg_context_sp.reset(reg_ctx);
-                    break;
-                }
-            default:
-                break;
-        }
-    }
-    return m_reg_context_sp;
-}
-
-lldb::RegisterContextSP
-POSIXThread::CreateRegisterContextForFrame(lldb_private::StackFrame *frame)
-{
-    lldb::RegisterContextSP reg_ctx_sp;
-    uint32_t concrete_frame_idx = 0;
-
-    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
-    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
-        log->Printf ("POSIXThread::%s ()", __FUNCTION__);
-
-    if (frame)
-        concrete_frame_idx = frame->GetConcreteFrameIndex();
-
-    if (concrete_frame_idx == 0)
-        reg_ctx_sp = GetRegisterContext();
-    else
-    {
-        assert(GetUnwinder());
-        reg_ctx_sp = GetUnwinder()->CreateRegisterContextForFrame(frame);
-    }
-
-    return reg_ctx_sp;
-}
-
-lldb::addr_t
-POSIXThread::GetThreadPointer ()
-{
-    ProcessMonitor &monitor = GetMonitor();
-    addr_t addr;
-    if (monitor.ReadThreadPointer (GetID(), addr))
-        return addr;
-    else
-        return LLDB_INVALID_ADDRESS;
-}
-
-bool
-POSIXThread::CalculateStopInfo()
-{
-    SetStopInfo (m_stop_info_sp);
-    return true;
-}
-
-Unwind *
-POSIXThread::GetUnwinder()
-{
-    if (m_unwinder_ap.get() == NULL)
-        m_unwinder_ap.reset(new UnwindLLDB(*this));
-
-    return m_unwinder_ap.get();
-}
-
-void
-POSIXThread::DidStop()
-{
-    // Don't set the thread state to stopped unless we really stopped.
-}
-
-bool
-POSIXThread::Resume()
-{
-    lldb::StateType resume_state = GetResumeState();
-    ProcessMonitor &monitor = GetMonitor();
-    bool status;
-
-    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
-    if (log)
-        log->Printf ("POSIXThread::%s (), resume_state = %s", __FUNCTION__,
-                         StateAsCString(resume_state));
-
-    switch (resume_state)
-    {
-    default:
-        assert(false && "Unexpected state for resume!");
-        status = false;
-        break;
-
-    case lldb::eStateRunning:
-        SetState(resume_state);
-        status = monitor.Resume(GetID(), GetResumeSignal());
-        break;
-
-    case lldb::eStateStepping:
-        SetState(resume_state);
-        status = monitor.SingleStep(GetID(), GetResumeSignal());
-        break;
-    case lldb::eStateStopped:
-    case lldb::eStateSuspended:
-        status = true;
-        break;
-    }
-
-    return status;
-}
-
-void
-POSIXThread::Notify(const ProcessMessage &message)
-{
-    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
-    if (log)
-        log->Printf ("POSIXThread::%s () message kind = '%s' for tid %" PRIu64,
-                     __FUNCTION__, message.PrintKind(), GetID());
-
-    switch (message.GetKind())
-    {
-    default:
-        assert(false && "Unexpected message kind!");
-        break;
-
-    case ProcessMessage::eExitMessage:
-        // Nothing to be done.
-        break;
-
-    case ProcessMessage::eLimboMessage:
-        LimboNotify(message);
-        break;
-
-    case ProcessMessage::eSignalMessage:
-        SignalNotify(message);
-        break;
-
-    case ProcessMessage::eSignalDeliveredMessage:
-        SignalDeliveredNotify(message);
-        break;
-
-    case ProcessMessage::eTraceMessage:
-        TraceNotify(message);
-        break;
-
-    case ProcessMessage::eBreakpointMessage:
-        BreakNotify(message);
-        break;
-
-    case ProcessMessage::eWatchpointMessage:
-        WatchNotify(message);
-        break;
-
-    case ProcessMessage::eCrashMessage:
-        CrashNotify(message);
-        break;
-
-    case ProcessMessage::eNewThreadMessage:
-        ThreadNotify(message);
-        break;
-
-    case ProcessMessage::eExecMessage:
-        ExecNotify(message);
-        break;
-    }
-}
-
-bool
-POSIXThread::EnableHardwareWatchpoint(Watchpoint *wp)
-{
-    bool wp_set = false;
-    if (wp)
-    {
-        addr_t wp_addr = wp->GetLoadAddress();
-        size_t wp_size = wp->GetByteSize();
-        bool wp_read = wp->WatchpointRead();
-        bool wp_write = wp->WatchpointWrite();
-        uint32_t wp_hw_index = wp->GetHardwareIndex();
-        POSIXBreakpointProtocol* reg_ctx = GetPOSIXBreakpointProtocol();
-        if (reg_ctx)
-            wp_set = reg_ctx->SetHardwareWatchpointWithIndex(wp_addr, wp_size,
-                                                             wp_read, wp_write,
-                                                             wp_hw_index);
-    }
-    return wp_set;
-}
-
-bool
-POSIXThread::DisableHardwareWatchpoint(Watchpoint *wp)
-{
-    bool result = false;
-    if (wp)
-    {
-        lldb::RegisterContextSP reg_ctx_sp = GetRegisterContext();
-        if (reg_ctx_sp.get())
-            result = reg_ctx_sp->ClearHardwareWatchpoint(wp->GetHardwareIndex());
-    }
-    return result;
-}
-
-uint32_t
-POSIXThread::NumSupportedHardwareWatchpoints()
-{
-    lldb::RegisterContextSP reg_ctx_sp = GetRegisterContext();
-    if (reg_ctx_sp.get())
-        return reg_ctx_sp->NumSupportedHardwareWatchpoints();
-    return 0;
-}
-
-uint32_t
-POSIXThread::FindVacantWatchpointIndex()
-{
-    uint32_t hw_index = LLDB_INVALID_INDEX32;
-    uint32_t num_hw_wps = NumSupportedHardwareWatchpoints();
-    uint32_t wp_idx;
-    POSIXBreakpointProtocol* reg_ctx = GetPOSIXBreakpointProtocol();
-    if (reg_ctx)
-    {
-        for (wp_idx = 0; wp_idx < num_hw_wps; wp_idx++)
-        {
-            if (reg_ctx->IsWatchpointVacant(wp_idx))
-            {
-                hw_index = wp_idx;
-                break;
-            }
-        }
-    }
-    return hw_index;
-}
-
-void
-POSIXThread::BreakNotify(const ProcessMessage &message)
-{
-    bool status;
-    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
-
-    assert(GetRegisterContext());
-    status = GetPOSIXBreakpointProtocol()->UpdateAfterBreakpoint();
-    assert(status && "Breakpoint update failed!");
-
-    // With our register state restored, resolve the breakpoint object
-    // corresponding to our current PC.
-    assert(GetRegisterContext());
-    lldb::addr_t pc = GetRegisterContext()->GetPC();
-    if (log)
-        log->Printf ("POSIXThread::%s () PC=0x%8.8" PRIx64, __FUNCTION__, pc);
-    lldb::BreakpointSiteSP bp_site(GetProcess()->GetBreakpointSiteList().FindByAddress(pc));
-
-    // If the breakpoint is for this thread, then we'll report the hit, but if it is for another thread,
-    // we create a stop reason with should_stop=false.  If there is no breakpoint location, then report
-    // an invalid stop reason. We don't need to worry about stepping over the breakpoint here, that will
-    // be taken care of when the thread resumes and notices that there's a breakpoint under the pc.
-    if (bp_site)
-    {
-        lldb::break_id_t bp_id = bp_site->GetID();
-        // If we have an operating system plug-in, we might have set a thread specific breakpoint using the
-        // operating system thread ID, so we can't make any assumptions about the thread ID so we must always
-        // report the breakpoint regardless of the thread.
-        if (bp_site->ValidForThisThread(this) || GetProcess()->GetOperatingSystem () != NULL)
-            SetStopInfo (StopInfo::CreateStopReasonWithBreakpointSiteID(*this, bp_id));
-        else
-        {
-            const bool should_stop = false;
-            SetStopInfo (StopInfo::CreateStopReasonWithBreakpointSiteID(*this, bp_id, should_stop));
-        }
-    }
-    else
-        SetStopInfo(StopInfoSP());
-}
-
-void
-POSIXThread::WatchNotify(const ProcessMessage &message)
-{
-    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
-
-    lldb::addr_t halt_addr = message.GetHWAddress();
-    if (log)
-        log->Printf ("POSIXThread::%s () Hardware Watchpoint Address = 0x%8.8"
-                     PRIx64, __FUNCTION__, halt_addr);
-
-    POSIXBreakpointProtocol* reg_ctx = GetPOSIXBreakpointProtocol();
-    if (reg_ctx)
-    {
-        uint32_t num_hw_wps = reg_ctx->NumSupportedHardwareWatchpoints();
-        uint32_t wp_idx;
-        for (wp_idx = 0; wp_idx < num_hw_wps; wp_idx++)
-        {
-            if (reg_ctx->IsWatchpointHit(wp_idx))
-            {
-                // Clear the watchpoint hit here
-                reg_ctx->ClearWatchpointHits();
-                break;
-            }
-        }
-
-        if (wp_idx == num_hw_wps)
-            return;
-
-        Target &target = GetProcess()->GetTarget();
-        lldb::addr_t wp_monitor_addr = reg_ctx->GetWatchpointAddress(wp_idx);
-        const WatchpointList &wp_list = target.GetWatchpointList();
-        lldb::WatchpointSP wp_sp = wp_list.FindByAddress(wp_monitor_addr);
-
-        assert(wp_sp.get() && "No watchpoint found");
-        SetStopInfo (StopInfo::CreateStopReasonWithWatchpointID(*this,
-                                                                wp_sp->GetID()));
-    }
-}
-
-void
-POSIXThread::TraceNotify(const ProcessMessage &message)
-{
-    POSIXBreakpointProtocol* reg_ctx = GetPOSIXBreakpointProtocol();
-    if (reg_ctx)
-    {
-        uint32_t num_hw_wps = reg_ctx->NumSupportedHardwareWatchpoints();
-        uint32_t wp_idx;
-        for (wp_idx = 0; wp_idx < num_hw_wps; wp_idx++)
-        {
-            if (reg_ctx->IsWatchpointHit(wp_idx))
-            {
-                WatchNotify(message);
-                return;
-            }
-        }
-    }
-
-    SetStopInfo (StopInfo::CreateStopReasonToTrace(*this));
-}
-
-void
-POSIXThread::LimboNotify(const ProcessMessage &message)
-{
-    SetStopInfo (lldb::StopInfoSP(new POSIXLimboStopInfo(*this)));
-}
-
-void
-POSIXThread::SignalNotify(const ProcessMessage &message)
-{
-    int signo = message.GetSignal();
-    SetStopInfo (StopInfo::CreateStopReasonWithSignal(*this, signo));
-}
-
-void
-POSIXThread::SignalDeliveredNotify(const ProcessMessage &message)
-{
-    int signo = message.GetSignal();
-    SetStopInfo (StopInfo::CreateStopReasonWithSignal(*this, signo));
-}
-
-void
-POSIXThread::CrashNotify(const ProcessMessage &message)
-{
-    // FIXME: Update stop reason as per bugzilla 14598
-    int signo = message.GetSignal();
-
-    assert(message.GetKind() == ProcessMessage::eCrashMessage);
-
-    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
-    if (log)
-        log->Printf ("POSIXThread::%s () signo = %i, reason = '%s'",
-                     __FUNCTION__, signo, message.PrintCrashReason());
-
-    SetStopInfo (lldb::StopInfoSP(new POSIXCrashStopInfo(*this, signo,
-                                                         message.GetCrashReason(),
-                                                         message.GetFaultAddress())));
-}
-
-void
-POSIXThread::ThreadNotify(const ProcessMessage &message)
-{
-    SetStopInfo (lldb::StopInfoSP(new POSIXNewThreadStopInfo(*this)));
-}
-
-unsigned
-POSIXThread::GetRegisterIndexFromOffset(unsigned offset)
-{
-    unsigned reg = LLDB_INVALID_REGNUM;
-    ArchSpec arch = HostInfo::GetArchitecture();
-
-    switch (arch.GetMachine())
-    {
-    default:
-        llvm_unreachable("CPU type not supported!");
-        break;
-
-    case llvm::Triple::aarch64:
-    case llvm::Triple::arm:
-    case llvm::Triple::mips64:
-    case llvm::Triple::ppc:
-    case llvm::Triple::ppc64:
-    case llvm::Triple::x86:
-    case llvm::Triple::x86_64:
-        {
-            POSIXBreakpointProtocol* reg_ctx = GetPOSIXBreakpointProtocol();
-            reg = reg_ctx->GetRegisterIndexFromOffset(offset);
-        }
-        break;
-    }
-    return reg;
-}
-
-void
-POSIXThread::ExecNotify(const ProcessMessage &message)
-{
-    SetStopInfo (StopInfo::CreateStopReasonWithExec(*this));
-}
-
-const char *
-POSIXThread::GetRegisterName(unsigned reg)
-{
-    const char * name = nullptr;
-    ArchSpec arch = HostInfo::GetArchitecture();
-
-    switch (arch.GetMachine())
-    {
-    default:
-        assert(false && "CPU type not supported!");
-        break;
-
-    case llvm::Triple::aarch64:
-    case llvm::Triple::arm:
-    case llvm::Triple::mips64:
-    case llvm::Triple::ppc:
-    case llvm::Triple::ppc64:
-    case llvm::Triple::x86:
-    case llvm::Triple::x86_64:
-        name = GetRegisterContext()->GetRegisterName(reg);
-        break;
-    }
-    return name;
-}
-
-const char *
-POSIXThread::GetRegisterNameFromOffset(unsigned offset)
-{
-    return GetRegisterName(GetRegisterIndexFromOffset(offset));
-}
-
diff --git a/source/Plugins/Process/FreeBSD/POSIXThread.h b/source/Plugins/Process/FreeBSD/POSIXThread.h
deleted file mode 100644
index c38d194dbd19f..0000000000000
--- a/source/Plugins/Process/FreeBSD/POSIXThread.h
+++ /dev/null
@@ -1,132 +0,0 @@
-//===-- POSIXThread.h -------------------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef liblldb_POSIXThread_H_
-#define liblldb_POSIXThread_H_
-
-// C Includes
-// C++ Includes
-#include <memory>
-#include <string>
-
-// Other libraries and framework includes
-#include "lldb/Target/Thread.h"
-#include "Plugins/Process/Utility/RegisterContextPOSIX.h"
-
-class ProcessMessage;
-class ProcessMonitor;
-class POSIXBreakpointProtocol;
-
-//------------------------------------------------------------------------------
-// @class POSIXThread
-// @brief Abstraction of a POSIX thread.
-class POSIXThread
-    : public lldb_private::Thread
-{
-public:
-    POSIXThread(lldb_private::Process &process, lldb::tid_t tid);
-
-    virtual ~POSIXThread();
-
-    void
-    RefreshStateAfterStop() override;
-
-    // This notifies the thread when a private stop occurs.
-    void
-    DidStop () override;
-
-    const char *
-    GetInfo() override;
-
-    void
-    SetName (const char *name) override;
-
-    const char *
-    GetName () override;
-
-    lldb::RegisterContextSP
-    GetRegisterContext() override;
-
-    lldb::RegisterContextSP
-    CreateRegisterContextForFrame (lldb_private::StackFrame *frame) override;
-
-    lldb::addr_t
-    GetThreadPointer () override;
-
-    //--------------------------------------------------------------------------
-    // These functions provide a mapping from the register offset
-    // back to the register index or name for use in debugging or log
-    // output.
-
-    unsigned
-    GetRegisterIndexFromOffset(unsigned offset);
-
-    const char *
-    GetRegisterName(unsigned reg);
-
-    const char *
-    GetRegisterNameFromOffset(unsigned offset);
-
-    //--------------------------------------------------------------------------
-    // These methods form a specialized interface to POSIX threads.
-    //
-    bool Resume();
-
-    void Notify(const ProcessMessage &message);
-
-    //--------------------------------------------------------------------------
-    // These methods provide an interface to watchpoints
-    //
-    bool EnableHardwareWatchpoint(lldb_private::Watchpoint *wp);
-
-    bool DisableHardwareWatchpoint(lldb_private::Watchpoint *wp);
-
-    uint32_t NumSupportedHardwareWatchpoints();
-
-    uint32_t FindVacantWatchpointIndex();
-
-protected:
-    POSIXBreakpointProtocol *
-    GetPOSIXBreakpointProtocol ()
-    {
-        if (!m_reg_context_sp)
-            m_reg_context_sp = GetRegisterContext();
-        return m_posix_thread;
-    }
-    
-    std::unique_ptr<lldb_private::StackFrame> m_frame_ap;
-
-    lldb::BreakpointSiteSP m_breakpoint;
-
-    bool m_thread_name_valid;
-    std::string m_thread_name;
-    POSIXBreakpointProtocol *m_posix_thread;
-
-    ProcessMonitor &
-    GetMonitor();
-
-    bool
-    CalculateStopInfo() override;
-
-    void BreakNotify(const ProcessMessage &message);
-    void WatchNotify(const ProcessMessage &message);
-    virtual void TraceNotify(const ProcessMessage &message);
-    void LimboNotify(const ProcessMessage &message);
-    void SignalNotify(const ProcessMessage &message);
-    void SignalDeliveredNotify(const ProcessMessage &message);
-    void CrashNotify(const ProcessMessage &message);
-    void ThreadNotify(const ProcessMessage &message);
-    void ExitNotify(const ProcessMessage &message);
-    void ExecNotify(const ProcessMessage &message);
-
-    lldb_private::Unwind *
-    GetUnwinder() override;
-};
-
-#endif // #ifndef liblldb_POSIXThread_H_
diff --git a/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp b/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp
index a0458f16e558e..769ccd7248ac1 100644
--- a/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp
+++ b/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp
@@ -28,6 +28,23 @@
 #include "ProcessMonitor.h"
 #include "FreeBSDThread.h"
 
+// Other libraries and framework includes
+#include "lldb/Breakpoint/BreakpointLocation.h"
+#include "lldb/Breakpoint/Watchpoint.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/ModuleSpec.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Core/State.h"
+#include "lldb/Host/FileSpec.h"
+#include "lldb/Host/Host.h"
+#include "lldb/Symbol/ObjectFile.h"
+#include "lldb/Target/DynamicLoader.h"
+#include "lldb/Target/Platform.h"
+#include "lldb/Target/Target.h"
+
+#include "lldb/Host/posix/Fcntl.h"
+
+
 using namespace lldb;
 using namespace lldb_private;
 
@@ -45,13 +62,13 @@ namespace
 // Static functions.
 
 lldb::ProcessSP
-ProcessFreeBSD::CreateInstance(Target& target,
+ProcessFreeBSD::CreateInstance(lldb::TargetSP target_sp,
                                Listener &listener,
                                const FileSpec *crash_file_path)
 {
     lldb::ProcessSP process_sp;
     if (crash_file_path == NULL)
-        process_sp.reset(new ProcessFreeBSD (target, listener));
+        process_sp.reset(new ProcessFreeBSD (target_sp, listener, GetFreeBSDSignals()));
     return process_sp;
 }
 
@@ -97,32 +114,6 @@ ProcessFreeBSD::GetPluginVersion()
 }
 
 void
-ProcessFreeBSD::GetPluginCommandHelp(const char *command, Stream *strm)
-{
-}
-
-Error
-ProcessFreeBSD::ExecutePluginCommand(Args &command, Stream *strm)
-{
-    return Error(1, eErrorTypeGeneric);
-}
-
-Log *
-ProcessFreeBSD::EnablePluginLogging(Stream *strm, Args &command)
-{
-    return NULL;
-}
-
-//------------------------------------------------------------------------------
-// Constructors and destructors.
-
-ProcessFreeBSD::ProcessFreeBSD(Target& target, Listener &listener)
-    : ProcessPOSIX(target, listener, GetFreeBSDSignals ()),
-      m_resume_signo(0)
-{
-}
-
-void
 ProcessFreeBSD::Terminate()
 {
 }
@@ -232,7 +223,7 @@ ProcessFreeBSD::WillResume()
     m_suspend_tids.clear();
     m_run_tids.clear();
     m_step_tids.clear();
-    return ProcessPOSIX::WillResume();
+    return Process::WillResume();
 }
 
 void
@@ -264,7 +255,7 @@ ProcessFreeBSD::SendMessage(const ProcessMessage &message)
         break;
 
     case ProcessMessage::eNewThreadMessage:
-        assert(0 && "eNewThreadMessage unexpected on FreeBSD");
+        llvm_unreachable("eNewThreadMessage unexpected on FreeBSD");
         break;
 
     case ProcessMessage::eExecMessage:
@@ -274,3 +265,781 @@ ProcessFreeBSD::SendMessage(const ProcessMessage &message)
 
     m_message_queue.push(message);
 }
+
+//------------------------------------------------------------------------------
+// Constructors and destructors.
+
+ProcessFreeBSD::ProcessFreeBSD(lldb::TargetSP target_sp, Listener &listener, UnixSignalsSP &unix_signals_sp)
+    : Process(target_sp, listener, unix_signals_sp),
+      m_byte_order(endian::InlHostByteOrder()),
+      m_monitor(NULL),
+      m_module(NULL),
+      m_message_mutex (Mutex::eMutexTypeRecursive),
+      m_exit_now(false),
+      m_seen_initial_stop(),
+      m_resume_signo(0)
+{
+    // FIXME: Putting this code in the ctor and saving the byte order in a
+    // member variable is a hack to avoid const qual issues in GetByteOrder.
+    lldb::ModuleSP module = GetTarget().GetExecutableModule();
+    if (module && module->GetObjectFile())
+        m_byte_order = module->GetObjectFile()->GetByteOrder();
+}
+
+ProcessFreeBSD::~ProcessFreeBSD()
+{
+    delete m_monitor;
+}
+
+//------------------------------------------------------------------------------
+// Process protocol.
+void
+ProcessFreeBSD::Finalize()
+{
+  Process::Finalize();
+
+  if (m_monitor)
+    m_monitor->StopMonitor();
+}
+
+bool
+ProcessFreeBSD::CanDebug(lldb::TargetSP target_sp, bool plugin_specified_by_name)
+{
+    // For now we are just making sure the file exists for a given module
+    ModuleSP exe_module_sp(target_sp->GetExecutableModule());
+    if (exe_module_sp.get())
+        return exe_module_sp->GetFileSpec().Exists();
+    // If there is no executable module, we return true since we might be preparing to attach.
+    return true;
+}
+
+Error
+ProcessFreeBSD::DoAttachToProcessWithID (lldb::pid_t pid,  const ProcessAttachInfo &attach_info)
+{
+    Error error;
+    assert(m_monitor == NULL);
+
+    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_PROCESS));
+    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
+        log->Printf ("ProcessFreeBSD::%s(pid = %" PRIi64 ")", __FUNCTION__, GetID());
+
+    m_monitor = new ProcessMonitor(this, pid, error);
+
+    if (!error.Success())
+        return error;
+
+    PlatformSP platform_sp (GetTarget().GetPlatform ());
+    assert (platform_sp.get());
+    if (!platform_sp)
+        return error;  // FIXME: Detatch?
+
+    // Find out what we can about this process
+    ProcessInstanceInfo process_info;
+    platform_sp->GetProcessInfo (pid, process_info);
+
+    // Resolve the executable module
+    ModuleSP exe_module_sp;
+    FileSpecList executable_search_paths (Target::GetDefaultExecutableSearchPaths());
+    ModuleSpec exe_module_spec(process_info.GetExecutableFile(), GetTarget().GetArchitecture());
+    error = platform_sp->ResolveExecutable(exe_module_spec,
+                                           exe_module_sp,
+                                           executable_search_paths.GetSize() ? &executable_search_paths : NULL);
+    if (!error.Success())
+        return error;
+
+    // Fix the target architecture if necessary
+    const ArchSpec &module_arch = exe_module_sp->GetArchitecture();
+    if (module_arch.IsValid() && !GetTarget().GetArchitecture().IsExactMatch(module_arch))
+        GetTarget().SetArchitecture(module_arch);
+
+    // Initialize the target module list
+    GetTarget().SetExecutableModule (exe_module_sp, true);
+
+    SetSTDIOFileDescriptor(m_monitor->GetTerminalFD());
+
+    SetID(pid);
+
+    return error;
+}
+
+Error
+ProcessFreeBSD::WillLaunch(Module* module)
+{
+    Error error;
+    return error;
+}
+
+FileSpec
+ProcessFreeBSD::GetFileSpec(const lldb_private::FileAction *file_action,
+                          const FileSpec &default_file_spec,
+                          const FileSpec &dbg_pts_file_spec)
+{
+    FileSpec file_spec{};
+
+    if (file_action && file_action->GetAction() == FileAction::eFileActionOpen)
+    {
+        file_spec = file_action->GetFileSpec();
+        // By default the stdio paths passed in will be pseudo-terminal
+        // (/dev/pts). If so, convert to using a different default path
+        // instead to redirect I/O to the debugger console. This should
+        // also handle user overrides to /dev/null or a different file.
+        if (!file_spec || file_spec == dbg_pts_file_spec)
+            file_spec = default_file_spec;
+    }
+    return file_spec;
+}
+
+Error
+ProcessFreeBSD::DoLaunch (Module *module,
+                        ProcessLaunchInfo &launch_info)
+{
+    Error error;
+    assert(m_monitor == NULL);
+
+    FileSpec working_dir = launch_info.GetWorkingDirectory();
+    if (working_dir &&
+            (!working_dir.ResolvePath() ||
+             working_dir.GetFileType() != FileSpec::eFileTypeDirectory))
+    {
+        error.SetErrorStringWithFormat("No such file or directory: %s",
+                working_dir.GetCString());
+        return error;
+    }
+
+    SetPrivateState(eStateLaunching);
+
+    const lldb_private::FileAction *file_action;
+
+    // Default of empty will mean to use existing open file descriptors
+    FileSpec stdin_file_spec{};
+    FileSpec stdout_file_spec{};
+    FileSpec stderr_file_spec{};
+
+    const FileSpec dbg_pts_file_spec{launch_info.GetPTY().GetSlaveName(NULL,0), false};
+
+    file_action = launch_info.GetFileActionForFD (STDIN_FILENO);
+    stdin_file_spec = GetFileSpec(file_action, stdin_file_spec, dbg_pts_file_spec);
+
+    file_action = launch_info.GetFileActionForFD (STDOUT_FILENO);
+    stdout_file_spec = GetFileSpec(file_action, stdout_file_spec, dbg_pts_file_spec);
+
+    file_action = launch_info.GetFileActionForFD (STDERR_FILENO);
+    stderr_file_spec = GetFileSpec(file_action, stderr_file_spec, dbg_pts_file_spec);
+
+    m_monitor = new ProcessMonitor(this,
+                                   module,
+                                   launch_info.GetArguments().GetConstArgumentVector(),
+                                   launch_info.GetEnvironmentEntries().GetConstArgumentVector(),
+                                   stdin_file_spec,
+                                   stdout_file_spec,
+                                   stderr_file_spec,
+                                   working_dir,
+                                   launch_info,
+                                   error);
+
+    m_module = module;
+
+    if (!error.Success())
+        return error;
+
+    int terminal = m_monitor->GetTerminalFD();
+    if (terminal >= 0) {
+        // The reader thread will close the file descriptor when done, so we pass it a copy.
+#ifdef F_DUPFD_CLOEXEC
+        int stdio = fcntl(terminal, F_DUPFD_CLOEXEC, 0);
+        if (stdio == -1) {
+            error.SetErrorToErrno();
+            return error;
+        }
+#else
+        // Special case when F_DUPFD_CLOEXEC does not exist (Debian kFreeBSD)
+        int stdio = fcntl(terminal, F_DUPFD, 0);
+        if (stdio == -1) {
+            error.SetErrorToErrno();
+            return error;
+        }
+        stdio = fcntl(terminal, F_SETFD, FD_CLOEXEC);
+        if (stdio == -1) {
+            error.SetErrorToErrno();
+            return error;
+        }
+#endif
+        SetSTDIOFileDescriptor(stdio);
+    }
+
+    SetID(m_monitor->GetPID());
+    return error;
+}
+
+void
+ProcessFreeBSD::DidLaunch()
+{
+}
+
+addr_t
+ProcessFreeBSD::GetImageInfoAddress()
+{
+    Target *target = &GetTarget();
+    ObjectFile *obj_file = target->GetExecutableModule()->GetObjectFile();
+    Address addr = obj_file->GetImageInfoAddress(target);
+
+    if (addr.IsValid())
+        return addr.GetLoadAddress(target);
+    return LLDB_INVALID_ADDRESS;
+}
+
+Error
+ProcessFreeBSD::DoHalt(bool &caused_stop)
+{
+    Error error;
+
+    if (IsStopped())
+    {
+        caused_stop = false;
+    }
+    else if (kill(GetID(), SIGSTOP))
+    {
+        caused_stop = false;
+        error.SetErrorToErrno();
+    }
+    else
+    {
+        caused_stop = true;
+    }
+    return error;
+}
+
+Error
+ProcessFreeBSD::DoSignal(int signal)
+{
+    Error error;
+
+    if (kill(GetID(), signal))
+        error.SetErrorToErrno();
+
+    return error;
+}
+
+Error
+ProcessFreeBSD::DoDestroy()
+{
+    Error error;
+
+    if (!HasExited())
+    {
+        assert(m_monitor);
+        m_exit_now = true;
+        if (GetID() == LLDB_INVALID_PROCESS_ID)
+        {
+            error.SetErrorString("invalid process id");
+            return error;
+        }
+        if (!m_monitor->Kill())
+        {
+            error.SetErrorToErrno();
+            return error;
+        }
+
+        SetPrivateState(eStateExited);
+    }
+
+    return error;
+}
+
+void
+ProcessFreeBSD::DoDidExec()
+{
+    Target *target = &GetTarget();
+    if (target)
+    {
+        PlatformSP platform_sp (target->GetPlatform());
+        assert (platform_sp.get());
+        if (platform_sp)
+        {
+            ProcessInstanceInfo process_info;
+            platform_sp->GetProcessInfo(GetID(), process_info);
+            ModuleSP exe_module_sp;
+            ModuleSpec exe_module_spec(process_info.GetExecutableFile(), target->GetArchitecture());
+            FileSpecList executable_search_paths (Target::GetDefaultExecutableSearchPaths());
+            Error error = platform_sp->ResolveExecutable(exe_module_spec,
+                                                         exe_module_sp,
+                                                         executable_search_paths.GetSize() ? &executable_search_paths : NULL);
+            if (!error.Success())
+                return;
+            target->SetExecutableModule(exe_module_sp, true);
+        }
+    }
+}
+
+bool
+ProcessFreeBSD::AddThreadForInitialStopIfNeeded(lldb::tid_t stop_tid)
+{
+    bool added_to_set = false;
+    ThreadStopSet::iterator it = m_seen_initial_stop.find(stop_tid);
+    if (it == m_seen_initial_stop.end())
+    {
+        m_seen_initial_stop.insert(stop_tid);
+        added_to_set = true;
+    }
+    return added_to_set;
+}
+
+bool
+ProcessFreeBSD::WaitingForInitialStop(lldb::tid_t stop_tid)
+{
+    return (m_seen_initial_stop.find(stop_tid) == m_seen_initial_stop.end());
+}
+
+FreeBSDThread *
+ProcessFreeBSD::CreateNewFreeBSDThread(lldb_private::Process &process, lldb::tid_t tid)
+{
+    return new FreeBSDThread(process, tid);
+}
+
+void
+ProcessFreeBSD::RefreshStateAfterStop()
+{
+    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_PROCESS));
+    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
+        log->Printf ("ProcessFreeBSD::%s(), message_queue size = %d", __FUNCTION__, (int)m_message_queue.size());
+
+    Mutex::Locker lock(m_message_mutex);
+
+    // This method used to only handle one message.  Changing it to loop allows
+    // it to handle the case where we hit a breakpoint while handling a different
+    // breakpoint.
+    while (!m_message_queue.empty())
+    {
+        ProcessMessage &message = m_message_queue.front();
+
+        // Resolve the thread this message corresponds to and pass it along.
+        lldb::tid_t tid = message.GetTID();
+        if (log)
+            log->Printf ("ProcessFreeBSD::%s(), message_queue size = %d, pid = %" PRIi64, __FUNCTION__, (int)m_message_queue.size(), tid);
+
+        m_thread_list.RefreshStateAfterStop();
+
+        FreeBSDThread *thread = static_cast<FreeBSDThread*>(
+            GetThreadList().FindThreadByID(tid, false).get());
+        if (thread)
+            thread->Notify(message);
+
+        if (message.GetKind() == ProcessMessage::eExitMessage)
+        {
+            // FIXME: We should tell the user about this, but the limbo message is probably better for that.
+            if (log)
+                log->Printf ("ProcessFreeBSD::%s() removing thread, tid = %" PRIi64, __FUNCTION__, tid);
+
+            Mutex::Locker lock(m_thread_list.GetMutex());
+
+            ThreadSP thread_sp = m_thread_list.RemoveThreadByID(tid, false);
+            thread_sp.reset();
+            m_seen_initial_stop.erase(tid);
+        }
+
+        m_message_queue.pop();
+    }
+}
+
+bool
+ProcessFreeBSD::IsAlive()
+{
+    StateType state = GetPrivateState();
+    return state != eStateDetached
+        && state != eStateExited
+        && state != eStateInvalid
+        && state != eStateUnloaded;
+}
+
+size_t
+ProcessFreeBSD::DoReadMemory(addr_t vm_addr,
+                           void *buf, size_t size, Error &error)
+{
+    assert(m_monitor);
+    return m_monitor->ReadMemory(vm_addr, buf, size, error);
+}
+
+size_t
+ProcessFreeBSD::DoWriteMemory(addr_t vm_addr, const void *buf, size_t size,
+                            Error &error)
+{
+    assert(m_monitor);
+    return m_monitor->WriteMemory(vm_addr, buf, size, error);
+}
+
+addr_t
+ProcessFreeBSD::DoAllocateMemory(size_t size, uint32_t permissions,
+                               Error &error)
+{
+    addr_t allocated_addr = LLDB_INVALID_ADDRESS;
+
+    unsigned prot = 0;
+    if (permissions & lldb::ePermissionsReadable)
+        prot |= eMmapProtRead;
+    if (permissions & lldb::ePermissionsWritable)
+        prot |= eMmapProtWrite;
+    if (permissions & lldb::ePermissionsExecutable)
+        prot |= eMmapProtExec;
+
+    if (InferiorCallMmap(this, allocated_addr, 0, size, prot,
+                         eMmapFlagsAnon | eMmapFlagsPrivate, -1, 0)) {
+        m_addr_to_mmap_size[allocated_addr] = size;
+        error.Clear();
+    } else {
+        allocated_addr = LLDB_INVALID_ADDRESS;
+        error.SetErrorStringWithFormat("unable to allocate %zu bytes of memory with permissions %s", size, GetPermissionsAsCString (permissions));
+    }
+
+    return allocated_addr;
+}
+
+Error
+ProcessFreeBSD::DoDeallocateMemory(lldb::addr_t addr)
+{
+    Error error;
+    MMapMap::iterator pos = m_addr_to_mmap_size.find(addr);
+    if (pos != m_addr_to_mmap_size.end() &&
+        InferiorCallMunmap(this, addr, pos->second))
+        m_addr_to_mmap_size.erase (pos);
+    else
+        error.SetErrorStringWithFormat("unable to deallocate memory at 0x%" PRIx64, addr);
+
+    return error;
+}
+
+size_t
+ProcessFreeBSD::GetSoftwareBreakpointTrapOpcode(BreakpointSite* bp_site)
+{
+    static const uint8_t g_aarch64_opcode[] = { 0x00, 0x00, 0x20, 0xD4 };
+    static const uint8_t g_i386_opcode[] = { 0xCC };
+
+    ArchSpec arch = GetTarget().GetArchitecture();
+    const uint8_t *opcode = NULL;
+    size_t opcode_size = 0;
+
+    switch (arch.GetMachine())
+    {
+    default:
+        assert(false && "CPU type not supported!");
+        break;
+
+    case llvm::Triple::arm:
+        {
+            // The ARM reference recommends the use of 0xe7fddefe and 0xdefe
+            // but the linux kernel does otherwise.
+            static const uint8_t g_arm_breakpoint_opcode[] = { 0xf0, 0x01, 0xf0, 0xe7 };
+            static const uint8_t g_thumb_breakpoint_opcode[] = { 0x01, 0xde };
+
+            lldb::BreakpointLocationSP bp_loc_sp (bp_site->GetOwnerAtIndex (0));
+            AddressClass addr_class = eAddressClassUnknown;
+
+            if (bp_loc_sp)
+                addr_class = bp_loc_sp->GetAddress ().GetAddressClass ();
+
+            if (addr_class == eAddressClassCodeAlternateISA
+                || (addr_class == eAddressClassUnknown
+                    && bp_loc_sp->GetAddress().GetOffset() & 1))
+            {
+                opcode = g_thumb_breakpoint_opcode;
+                opcode_size = sizeof(g_thumb_breakpoint_opcode);
+            }
+            else
+            {
+                opcode = g_arm_breakpoint_opcode;
+                opcode_size = sizeof(g_arm_breakpoint_opcode);
+            }
+        }
+        break;
+    case llvm::Triple::aarch64:
+        opcode = g_aarch64_opcode;
+        opcode_size = sizeof(g_aarch64_opcode);
+        break;
+
+    case llvm::Triple::x86:
+    case llvm::Triple::x86_64:
+        opcode = g_i386_opcode;
+        opcode_size = sizeof(g_i386_opcode);
+        break;
+    }
+
+    bp_site->SetTrapOpcode(opcode, opcode_size);
+    return opcode_size;
+}
+
+Error
+ProcessFreeBSD::EnableBreakpointSite(BreakpointSite *bp_site)
+{
+    return EnableSoftwareBreakpoint(bp_site);
+}
+
+Error
+ProcessFreeBSD::DisableBreakpointSite(BreakpointSite *bp_site)
+{
+    return DisableSoftwareBreakpoint(bp_site);
+}
+
+Error
+ProcessFreeBSD::EnableWatchpoint(Watchpoint *wp, bool notify)
+{
+    Error error;
+    if (wp)
+    {
+        user_id_t watchID = wp->GetID();
+        addr_t addr = wp->GetLoadAddress();
+        Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet(POSIX_LOG_WATCHPOINTS));
+        if (log)
+            log->Printf ("ProcessFreeBSD::EnableWatchpoint(watchID = %" PRIu64 ")",
+                         watchID);
+        if (wp->IsEnabled())
+        {
+            if (log)
+                log->Printf("ProcessFreeBSD::EnableWatchpoint(watchID = %" PRIu64
+                            ") addr = 0x%8.8" PRIx64 ": watchpoint already enabled.",
+                            watchID, (uint64_t)addr);
+            return error;
+        }
+
+        // Try to find a vacant watchpoint slot in the inferiors' main thread
+        uint32_t wp_hw_index = LLDB_INVALID_INDEX32;
+        Mutex::Locker lock(m_thread_list.GetMutex());
+        FreeBSDThread *thread = static_cast<FreeBSDThread*>(
+                               m_thread_list.GetThreadAtIndex(0, false).get());
+
+        if (thread)
+            wp_hw_index = thread->FindVacantWatchpointIndex();
+
+        if (wp_hw_index == LLDB_INVALID_INDEX32)
+        {
+            error.SetErrorString("Setting hardware watchpoint failed.");
+        }
+        else
+        {
+            wp->SetHardwareIndex(wp_hw_index);
+            bool wp_enabled = true;
+            uint32_t thread_count = m_thread_list.GetSize(false);
+            for (uint32_t i = 0; i < thread_count; ++i)
+            {
+                thread = static_cast<FreeBSDThread*>(
+                         m_thread_list.GetThreadAtIndex(i, false).get());
+                if (thread)
+                    wp_enabled &= thread->EnableHardwareWatchpoint(wp);
+                else
+                    wp_enabled = false;
+            }
+            if (wp_enabled)
+            {
+                wp->SetEnabled(true, notify);
+                return error;
+            }
+            else
+            {
+                // Watchpoint enabling failed on at least one
+                // of the threads so roll back all of them
+                DisableWatchpoint(wp, false);
+                error.SetErrorString("Setting hardware watchpoint failed");
+            }
+        }
+    }
+    else
+        error.SetErrorString("Watchpoint argument was NULL.");
+    return error;
+}
+
+Error
+ProcessFreeBSD::DisableWatchpoint(Watchpoint *wp, bool notify)
+{
+    Error error;
+    if (wp)
+    {
+        user_id_t watchID = wp->GetID();
+        addr_t addr = wp->GetLoadAddress();
+        Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet(POSIX_LOG_WATCHPOINTS));
+        if (log)
+            log->Printf("ProcessFreeBSD::DisableWatchpoint(watchID = %" PRIu64 ")",
+                        watchID);
+        if (!wp->IsEnabled())
+        {
+            if (log)
+                log->Printf("ProcessFreeBSD::DisableWatchpoint(watchID = %" PRIu64
+                            ") addr = 0x%8.8" PRIx64 ": watchpoint already disabled.",
+                            watchID, (uint64_t)addr);
+            // This is needed (for now) to keep watchpoints disabled correctly
+            wp->SetEnabled(false, notify);
+            return error;
+        }
+
+        if (wp->IsHardware())
+        {
+            bool wp_disabled = true;
+            Mutex::Locker lock(m_thread_list.GetMutex());
+            uint32_t thread_count = m_thread_list.GetSize(false);
+            for (uint32_t i = 0; i < thread_count; ++i)
+            {
+                FreeBSDThread *thread = static_cast<FreeBSDThread*>(
+                                      m_thread_list.GetThreadAtIndex(i, false).get());
+                if (thread)
+                    wp_disabled &= thread->DisableHardwareWatchpoint(wp);
+                else
+                    wp_disabled = false;
+            }
+            if (wp_disabled)
+            {
+                wp->SetHardwareIndex(LLDB_INVALID_INDEX32);
+                wp->SetEnabled(false, notify);
+                return error;
+            }
+            else
+                error.SetErrorString("Disabling hardware watchpoint failed");
+        }
+    }
+    else
+        error.SetErrorString("Watchpoint argument was NULL.");
+    return error;
+}
+
+Error
+ProcessFreeBSD::GetWatchpointSupportInfo(uint32_t &num)
+{
+    Error error;
+    Mutex::Locker lock(m_thread_list.GetMutex());
+    FreeBSDThread *thread = static_cast<FreeBSDThread*>(
+                          m_thread_list.GetThreadAtIndex(0, false).get());
+    if (thread)
+        num = thread->NumSupportedHardwareWatchpoints();
+    else
+        error.SetErrorString("Process does not exist.");
+    return error;
+}
+
+Error
+ProcessFreeBSD::GetWatchpointSupportInfo(uint32_t &num, bool &after)
+{
+    Error error = GetWatchpointSupportInfo(num);
+    // Watchpoints trigger and halt the inferior after
+    // the corresponding instruction has been executed.
+    after = true;
+    return error;
+}
+
+uint32_t
+ProcessFreeBSD::UpdateThreadListIfNeeded()
+{
+    Mutex::Locker lock(m_thread_list.GetMutex());
+    // Do not allow recursive updates.
+    return m_thread_list.GetSize(false);
+}
+
+#if 0
+bool
+ProcessFreeBSD::UpdateThreadList(ThreadList &old_thread_list, ThreadList &new_thread_list)
+{
+    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
+    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
+        log->Printf ("ProcessFreeBSD::%s() (pid = %" PRIi64 ")", __FUNCTION__, GetID());
+
+    bool has_updated = false;
+    // Update the process thread list with this new thread.
+    // FIXME: We should be using tid, not pid.
+    assert(m_monitor);
+    ThreadSP thread_sp (old_thread_list.FindThreadByID (GetID(), false));
+    if (!thread_sp) {
+        thread_sp.reset(CreateNewFreeBSDThread(*this, GetID()));
+        has_updated = true;
+    }
+
+    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
+        log->Printf ("ProcessFreeBSD::%s() updated pid = %" PRIi64, __FUNCTION__, GetID());
+    new_thread_list.AddThread(thread_sp);
+
+    return has_updated; // the list has been updated
+}
+#endif
+
+ByteOrder
+ProcessFreeBSD::GetByteOrder() const
+{
+    // FIXME: We should be able to extract this value directly.  See comment in
+    // ProcessFreeBSD().
+    return m_byte_order;
+}
+
+size_t
+ProcessFreeBSD::PutSTDIN(const char *buf, size_t len, Error &error)
+{
+    ssize_t status;
+    if ((status = write(m_monitor->GetTerminalFD(), buf, len)) < 0) 
+    {
+        error.SetErrorToErrno();
+        return 0;
+    }
+    return status;
+}
+
+//------------------------------------------------------------------------------
+// Utility functions.
+
+bool
+ProcessFreeBSD::HasExited()
+{
+    switch (GetPrivateState())
+    {
+    default:
+        break;
+
+    case eStateDetached:
+    case eStateExited:
+        return true;
+    }
+
+    return false;
+}
+
+bool
+ProcessFreeBSD::IsStopped()
+{
+    switch (GetPrivateState())
+    {
+    default:
+        break;
+
+    case eStateStopped:
+    case eStateCrashed:
+    case eStateSuspended:
+        return true;
+    }
+
+    return false;
+}
+
+bool
+ProcessFreeBSD::IsAThreadRunning()
+{
+    bool is_running = false;
+    Mutex::Locker lock(m_thread_list.GetMutex());
+    uint32_t thread_count = m_thread_list.GetSize(false);
+    for (uint32_t i = 0; i < thread_count; ++i)
+    {
+        FreeBSDThread *thread = static_cast<FreeBSDThread*>(
+            m_thread_list.GetThreadAtIndex(i, false).get());
+        StateType thread_state = thread->GetState();
+        if (thread_state == eStateRunning || thread_state == eStateStepping)
+        {
+            is_running = true;
+            break;
+        }
+    }
+    return is_running;
+}
+
+const DataBufferSP
+ProcessFreeBSD::GetAuxvData ()
+{
+    // If we're the local platform, we can ask the host for auxv data.
+    PlatformSP platform_sp = GetTarget().GetPlatform ();
+    if (platform_sp && platform_sp->IsHost ())
+        return lldb_private::Host::GetAuxvData(this);
+
+    // Somewhat unexpected - the process is not running locally or we don't have a platform.
+    assert (false && "no platform or not the host - how did we get here with ProcessFreeBSD?");
+    return DataBufferSP ();
+}
diff --git a/source/Plugins/Process/FreeBSD/ProcessFreeBSD.h b/source/Plugins/Process/FreeBSD/ProcessFreeBSD.h
index d6ae3462c73b1..3cc46f4898756 100644
--- a/source/Plugins/Process/FreeBSD/ProcessFreeBSD.h
+++ b/source/Plugins/Process/FreeBSD/ProcessFreeBSD.h
@@ -13,18 +13,20 @@
 // C Includes
 
 // C++ Includes
+#include <set>
 #include <queue>
 
 // Other libraries and framework includes
 #include "lldb/Target/Process.h"
 #include "lldb/Target/ThreadList.h"
 #include "ProcessMessage.h"
-#include "ProcessPOSIX.h"
+#include "ProcessFreeBSD.h"
 
 class ProcessMonitor;
+class FreeBSDThread;
 
 class ProcessFreeBSD :
-    public ProcessPOSIX
+    public lldb_private::Process
 {
 
 public:
@@ -32,7 +34,7 @@ public:
     // Static functions.
     //------------------------------------------------------------------
     static lldb::ProcessSP
-    CreateInstance(lldb_private::Target& target,
+    CreateInstance(lldb::TargetSP target_sp,
                    lldb_private::Listener &listener,
                    const lldb_private::FileSpec *crash_file_path);
 
@@ -51,45 +53,188 @@ public:
     //------------------------------------------------------------------
     // Constructors and destructors
     //------------------------------------------------------------------
-    ProcessFreeBSD(lldb_private::Target& target,
-                   lldb_private::Listener &listener);
-
-    virtual lldb_private::Error
-    DoDetach(bool keep_stopped);
-
-    virtual bool
-    UpdateThreadList(lldb_private::ThreadList &old_thread_list, lldb_private::ThreadList &new_thread_list);
+    ProcessFreeBSD(lldb::TargetSP target_sp,
+                   lldb_private::Listener &listener,
+                   lldb::UnixSignalsSP &unix_signals_sp);
 
-    virtual lldb_private::Error
-    DoResume();
+    ~ProcessFreeBSD();
 
     virtual lldb_private::Error
-    WillResume();
-
-    virtual void
-    SendMessage(const ProcessMessage &message);
+    WillResume() override;
 
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
     virtual lldb_private::ConstString
-    GetPluginName();
+    GetPluginName() override;
 
     virtual uint32_t
-    GetPluginVersion();
+    GetPluginVersion() override;
+
+public:
+    //------------------------------------------------------------------
+    // Process protocol.
+    //------------------------------------------------------------------
+    void
+    Finalize() override;
+
+    bool
+    CanDebug(lldb::TargetSP target_sp, bool plugin_specified_by_name) override;
+
+    lldb_private::Error
+    WillLaunch(lldb_private::Module *module) override;
+
+    lldb_private::Error
+    DoAttachToProcessWithID (lldb::pid_t pid, const lldb_private::ProcessAttachInfo &attach_info) override;
+
+    lldb_private::Error
+    DoLaunch (lldb_private::Module *exe_module, 
+              lldb_private::ProcessLaunchInfo &launch_info) override;
+
+    void
+    DidLaunch() override;
+
+    lldb_private::Error
+    DoResume() override;
+
+    lldb_private::Error
+    DoHalt(bool &caused_stop) override;
+
+    lldb_private::Error
+    DoDetach(bool keep_stopped) override;
+
+    lldb_private::Error
+    DoSignal(int signal) override;
+
+    lldb_private::Error
+    DoDestroy() override;
+
+    void
+    DoDidExec() override;
+
+    void
+    RefreshStateAfterStop() override;
+
+    bool
+    IsAlive() override;
+
+    size_t
+    DoReadMemory(lldb::addr_t vm_addr,
+                 void *buf,
+                 size_t size,
+                 lldb_private::Error &error) override;
+
+    size_t
+    DoWriteMemory(lldb::addr_t vm_addr, const void *buf, size_t size,
+                  lldb_private::Error &error) override;
+
+    lldb::addr_t
+    DoAllocateMemory(size_t size, uint32_t permissions,
+                     lldb_private::Error &error) override;
+
+    lldb_private::Error
+    DoDeallocateMemory(lldb::addr_t ptr) override;
+
+    virtual size_t
+    GetSoftwareBreakpointTrapOpcode(lldb_private::BreakpointSite* bp_site);
 
+    lldb_private::Error
+    EnableBreakpointSite(lldb_private::BreakpointSite *bp_site) override;
+
+    lldb_private::Error
+    DisableBreakpointSite(lldb_private::BreakpointSite *bp_site) override;
+
+    lldb_private::Error
+    EnableWatchpoint(lldb_private::Watchpoint *wp, bool notify = true) override;
+
+    lldb_private::Error
+    DisableWatchpoint(lldb_private::Watchpoint *wp, bool notify = true) override;
+
+    lldb_private::Error
+    GetWatchpointSupportInfo(uint32_t &num) override;
+
+    lldb_private::Error
+    GetWatchpointSupportInfo(uint32_t &num, bool &after) override;
+
+    virtual uint32_t
+    UpdateThreadListIfNeeded();
+
+    bool
+    UpdateThreadList(lldb_private::ThreadList &old_thread_list, 
+                     lldb_private::ThreadList &new_thread_list) override;
+
+    virtual lldb::ByteOrder
+    GetByteOrder() const;
+
+    lldb::addr_t
+    GetImageInfoAddress() override;
+
+    size_t
+    PutSTDIN(const char *buf, size_t len, lldb_private::Error &error) override;
+
+    const lldb::DataBufferSP
+    GetAuxvData () override;
+
+    //--------------------------------------------------------------------------
+    // ProcessFreeBSD internal API.
+
+    /// Registers the given message with this process.
     virtual void
-    GetPluginCommandHelp(const char *command, lldb_private::Stream *strm);
+    SendMessage(const ProcessMessage &message);
 
-    virtual lldb_private::Error
-    ExecutePluginCommand(lldb_private::Args &command,
-                         lldb_private::Stream *strm);
+    ProcessMonitor &
+    GetMonitor() { assert(m_monitor); return *m_monitor; }
+
+    lldb_private::FileSpec
+    GetFileSpec(const lldb_private::FileAction *file_action,
+                const lldb_private::FileSpec &default_file_spec,
+                const lldb_private::FileSpec &dbg_pts_file_spec);
+
+    /// Adds the thread to the list of threads for which we have received the initial stopping signal.
+    /// The \p stop_tid parameter indicates the thread which the stop happened for.
+    bool
+    AddThreadForInitialStopIfNeeded(lldb::tid_t stop_tid);
+
+    bool
+    WaitingForInitialStop(lldb::tid_t stop_tid);
 
-    virtual lldb_private::Log *
-    EnablePluginLogging(lldb_private::Stream *strm,
-                        lldb_private::Args &command);
+    virtual FreeBSDThread *
+    CreateNewFreeBSDThread(lldb_private::Process &process, lldb::tid_t tid);
 
 protected:
+    /// Target byte order.
+    lldb::ByteOrder m_byte_order;
+
+    /// Process monitor;
+    ProcessMonitor *m_monitor;
+
+    /// The module we are executing.
+    lldb_private::Module *m_module;
+
+    /// Message queue notifying this instance of inferior process state changes.
+    lldb_private::Mutex m_message_mutex;
+    std::queue<ProcessMessage> m_message_queue;
+
+    /// Drive any exit events to completion.
+    bool m_exit_now;
+
+    /// Returns true if the process has exited.
+    bool HasExited();
+
+    /// Returns true if the process is stopped.
+    bool IsStopped();
+
+    /// Returns true if at least one running is currently running
+    bool IsAThreadRunning();
+
+    typedef std::map<lldb::addr_t, lldb::addr_t> MMapMap;
+    MMapMap m_addr_to_mmap_size;
+
+    typedef std::set<lldb::tid_t> ThreadStopSet;
+    /// Every thread begins with a stop signal. This keeps track
+    /// of the threads for which we have received the stop signal.
+    ThreadStopSet m_seen_initial_stop;
+
     friend class FreeBSDThread;
 
     typedef std::vector<lldb::tid_t> tid_collection;
diff --git a/source/Plugins/Process/FreeBSD/ProcessMonitor.cpp b/source/Plugins/Process/FreeBSD/ProcessMonitor.cpp
index 427c66ce3e6b3..ceb527b61d80e 100644
--- a/source/Plugins/Process/FreeBSD/ProcessMonitor.cpp
+++ b/source/Plugins/Process/FreeBSD/ProcessMonitor.cpp
@@ -32,7 +32,7 @@
 #include "lldb/Utility/PseudoTerminal.h"
 
 #include "Plugins/Process/POSIX/CrashReason.h"
-#include "POSIXThread.h"
+#include "FreeBSDThread.h"
 #include "ProcessFreeBSD.h"
 #include "ProcessPOSIXLog.h"
 #include "ProcessMonitor.h"
@@ -804,7 +804,7 @@ ProcessMonitor::AttachArgs::~AttachArgs()
 /// launching or attaching to the inferior process, and then 2) servicing
 /// operations such as register reads/writes, stepping, etc.  See the comments
 /// on the Operation class for more info as to why this is needed.
-ProcessMonitor::ProcessMonitor(ProcessPOSIX *process,
+ProcessMonitor::ProcessMonitor(ProcessFreeBSD *process,
                                Module *module,
                                const char *argv[],
                                const char *envp[],
@@ -865,7 +865,7 @@ WAIT_AGAIN:
     }
 }
 
-ProcessMonitor::ProcessMonitor(ProcessPOSIX *process,
+ProcessMonitor::ProcessMonitor(ProcessFreeBSD *process,
                                lldb::pid_t pid,
                                lldb_private::Error &error)
     : m_process(static_cast<ProcessFreeBSD *>(process)),
diff --git a/source/Plugins/Process/FreeBSD/ProcessMonitor.h b/source/Plugins/Process/FreeBSD/ProcessMonitor.h
index 20ce582d973ec..07fa6b7869add 100644
--- a/source/Plugins/Process/FreeBSD/ProcessMonitor.h
+++ b/source/Plugins/Process/FreeBSD/ProcessMonitor.h
@@ -49,7 +49,7 @@ public:
 
     /// Launches an inferior process ready for debugging.  Forms the
     /// implementation of Process::DoLaunch.
-    ProcessMonitor(ProcessPOSIX *process,
+    ProcessMonitor(ProcessFreeBSD *process,
                    lldb_private::Module *module,
                    char const *argv[],
                    char const *envp[],
@@ -60,7 +60,7 @@ public:
                    const lldb_private::ProcessLaunchInfo &launch_info,
                    lldb_private::Error &error);
 
-    ProcessMonitor(ProcessPOSIX *process,
+    ProcessMonitor(ProcessFreeBSD *process,
                    lldb::pid_t pid,
                    lldb_private::Error &error);
 
diff --git a/source/Plugins/Process/FreeBSD/ProcessPOSIX.cpp b/source/Plugins/Process/FreeBSD/ProcessPOSIX.cpp
deleted file mode 100644
index 360382e2e63a7..0000000000000
--- a/source/Plugins/Process/FreeBSD/ProcessPOSIX.cpp
+++ /dev/null
@@ -1,939 +0,0 @@
-//===-- ProcessPOSIX.cpp ----------------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-// C Includes
-#include <errno.h>
-
-// C++ Includes
-// Other libraries and framework includes
-#include "lldb/Breakpoint/BreakpointLocation.h"
-#include "lldb/Breakpoint/Watchpoint.h"
-#include "lldb/Core/Module.h"
-#include "lldb/Core/ModuleSpec.h"
-#include "lldb/Core/PluginManager.h"
-#include "lldb/Core/State.h"
-#include "lldb/Host/FileSpec.h"
-#include "lldb/Host/Host.h"
-#include "lldb/Symbol/ObjectFile.h"
-#include "lldb/Target/DynamicLoader.h"
-#include "lldb/Target/Platform.h"
-#include "lldb/Target/Target.h"
-
-#include "ProcessPOSIX.h"
-#include "ProcessPOSIXLog.h"
-#include "Plugins/Process/Utility/InferiorCallPOSIX.h"
-#include "POSIXThread.h"
-#include "ProcessMonitor.h"
-
-#include "lldb/Host/posix/Fcntl.h"
-
-using namespace lldb;
-using namespace lldb_private;
-
-//------------------------------------------------------------------------------
-// Constructors and destructors.
-
-ProcessPOSIX::ProcessPOSIX(Target& target, Listener &listener, UnixSignalsSP &unix_signals_sp)
-    : Process(target, listener, unix_signals_sp),
-      m_byte_order(lldb::endian::InlHostByteOrder()),
-      m_monitor(NULL),
-      m_module(NULL),
-      m_message_mutex (Mutex::eMutexTypeRecursive),
-      m_exit_now(false),
-      m_seen_initial_stop()
-{
-    // FIXME: Putting this code in the ctor and saving the byte order in a
-    // member variable is a hack to avoid const qual issues in GetByteOrder.
-    lldb::ModuleSP module = GetTarget().GetExecutableModule();
-    if (module && module->GetObjectFile())
-        m_byte_order = module->GetObjectFile()->GetByteOrder();
-}
-
-ProcessPOSIX::~ProcessPOSIX()
-{
-    delete m_monitor;
-}
-
-//------------------------------------------------------------------------------
-// Process protocol.
-void
-ProcessPOSIX::Finalize()
-{
-  Process::Finalize();
-
-  if (m_monitor)
-    m_monitor->StopMonitor();
-}
-
-bool
-ProcessPOSIX::CanDebug(Target &target, bool plugin_specified_by_name)
-{
-    // For now we are just making sure the file exists for a given module
-    ModuleSP exe_module_sp(target.GetExecutableModule());
-    if (exe_module_sp.get())
-        return exe_module_sp->GetFileSpec().Exists();
-    // If there is no executable module, we return true since we might be preparing to attach.
-    return true;
-}
-
-Error
-ProcessPOSIX::DoAttachToProcessWithID (lldb::pid_t pid,  const ProcessAttachInfo &attach_info)
-{
-    Error error;
-    assert(m_monitor == NULL);
-
-    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_PROCESS));
-    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
-        log->Printf ("ProcessPOSIX::%s(pid = %" PRIi64 ")", __FUNCTION__, GetID());
-
-    m_monitor = new ProcessMonitor(this, pid, error);
-
-    if (!error.Success())
-        return error;
-
-    PlatformSP platform_sp (m_target.GetPlatform ());
-    assert (platform_sp.get());
-    if (!platform_sp)
-        return error;  // FIXME: Detatch?
-
-    // Find out what we can about this process
-    ProcessInstanceInfo process_info;
-    platform_sp->GetProcessInfo (pid, process_info);
-
-    // Resolve the executable module
-    ModuleSP exe_module_sp;
-    FileSpecList executable_search_paths (Target::GetDefaultExecutableSearchPaths());
-    ModuleSpec exe_module_spec(process_info.GetExecutableFile(), m_target.GetArchitecture());
-    error = platform_sp->ResolveExecutable(exe_module_spec,
-                                           exe_module_sp,
-                                           executable_search_paths.GetSize() ? &executable_search_paths : NULL);
-    if (!error.Success())
-        return error;
-
-    // Fix the target architecture if necessary
-    const ArchSpec &module_arch = exe_module_sp->GetArchitecture();
-    if (module_arch.IsValid() && !m_target.GetArchitecture().IsExactMatch(module_arch))
-        m_target.SetArchitecture(module_arch);
-
-    // Initialize the target module list
-    m_target.SetExecutableModule (exe_module_sp, true);
-
-    SetSTDIOFileDescriptor(m_monitor->GetTerminalFD());
-
-    SetID(pid);
-
-    return error;
-}
-
-Error
-ProcessPOSIX::WillLaunch(Module* module)
-{
-    Error error;
-    return error;
-}
-
-FileSpec
-ProcessPOSIX::GetFileSpec(const lldb_private::FileAction *file_action,
-                          const FileSpec &default_file_spec,
-                          const FileSpec &dbg_pts_file_spec)
-{
-    FileSpec file_spec{};
-
-    if (file_action && file_action->GetAction() == FileAction::eFileActionOpen)
-    {
-        file_spec = file_action->GetFileSpec();
-        // By default the stdio paths passed in will be pseudo-terminal
-        // (/dev/pts). If so, convert to using a different default path
-        // instead to redirect I/O to the debugger console. This should
-        // also handle user overrides to /dev/null or a different file.
-        if (!file_spec || file_spec == dbg_pts_file_spec)
-            file_spec = default_file_spec;
-    }
-    return file_spec;
-}
-
-Error
-ProcessPOSIX::DoLaunch (Module *module,
-                        ProcessLaunchInfo &launch_info)
-{
-    Error error;
-    assert(m_monitor == NULL);
-
-    FileSpec working_dir = launch_info.GetWorkingDirectory();
-    if (working_dir &&
-            (!working_dir.ResolvePath() ||
-             working_dir.GetFileType() != FileSpec::eFileTypeDirectory))
-    {
-        error.SetErrorStringWithFormat("No such file or directory: %s",
-                working_dir.GetCString());
-        return error;
-    }
-
-    SetPrivateState(eStateLaunching);
-
-    const lldb_private::FileAction *file_action;
-
-    // Default of empty will mean to use existing open file descriptors
-    FileSpec stdin_file_spec{};
-    FileSpec stdout_file_spec{};
-    FileSpec stderr_file_spec{};
-
-    const FileSpec dbg_pts_file_spec{launch_info.GetPTY().GetSlaveName(NULL,0), false};
-
-    file_action = launch_info.GetFileActionForFD (STDIN_FILENO);
-    stdin_file_spec = GetFileSpec(file_action, stdin_file_spec, dbg_pts_file_spec);
-
-    file_action = launch_info.GetFileActionForFD (STDOUT_FILENO);
-    stdout_file_spec = GetFileSpec(file_action, stdout_file_spec, dbg_pts_file_spec);
-
-    file_action = launch_info.GetFileActionForFD (STDERR_FILENO);
-    stderr_file_spec = GetFileSpec(file_action, stderr_file_spec, dbg_pts_file_spec);
-
-    m_monitor = new ProcessMonitor(this,
-                                   module,
-                                   launch_info.GetArguments().GetConstArgumentVector(),
-                                   launch_info.GetEnvironmentEntries().GetConstArgumentVector(),
-                                   stdin_file_spec,
-                                   stdout_file_spec,
-                                   stderr_file_spec,
-                                   working_dir,
-                                   launch_info,
-                                   error);
-
-    m_module = module;
-
-    if (!error.Success())
-        return error;
-
-    int terminal = m_monitor->GetTerminalFD();
-    if (terminal >= 0) {
-        // The reader thread will close the file descriptor when done, so we pass it a copy.
-        int stdio = fcntl(terminal, F_DUPFD_CLOEXEC, 0);
-        if (stdio == -1) {
-            error.SetErrorToErrno();
-            return error;
-        }
-        SetSTDIOFileDescriptor(stdio);
-    }
-
-    SetID(m_monitor->GetPID());
-    return error;
-}
-
-void
-ProcessPOSIX::DidLaunch()
-{
-}
-
-Error
-ProcessPOSIX::DoResume()
-{
-    StateType state = GetPrivateState();
-
-    assert(state == eStateStopped);
-
-    SetPrivateState(eStateRunning);
-
-    bool did_resume = false;
-
-    Mutex::Locker lock(m_thread_list.GetMutex());
-
-    uint32_t thread_count = m_thread_list.GetSize(false);
-    for (uint32_t i = 0; i < thread_count; ++i)
-    {
-        POSIXThread *thread = static_cast<POSIXThread*>(
-            m_thread_list.GetThreadAtIndex(i, false).get());
-        did_resume = thread->Resume() || did_resume;
-    }
-    assert(did_resume && "Process resume failed!");
-
-    return Error();
-}
-
-addr_t
-ProcessPOSIX::GetImageInfoAddress()
-{
-    Target *target = &GetTarget();
-    ObjectFile *obj_file = target->GetExecutableModule()->GetObjectFile();
-    Address addr = obj_file->GetImageInfoAddress(target);
-
-    if (addr.IsValid())
-        return addr.GetLoadAddress(target);
-    return LLDB_INVALID_ADDRESS;
-}
-
-Error
-ProcessPOSIX::DoHalt(bool &caused_stop)
-{
-    Error error;
-
-    if (IsStopped())
-    {
-        caused_stop = false;
-    }
-    else if (kill(GetID(), SIGSTOP))
-    {
-        caused_stop = false;
-        error.SetErrorToErrno();
-    }
-    else
-    {
-        caused_stop = true;
-    }
-    return error;
-}
-
-Error
-ProcessPOSIX::DoSignal(int signal)
-{
-    Error error;
-
-    if (kill(GetID(), signal))
-        error.SetErrorToErrno();
-
-    return error;
-}
-
-Error
-ProcessPOSIX::DoDestroy()
-{
-    Error error;
-
-    if (!HasExited())
-    {
-        assert(m_monitor);
-        m_exit_now = true;
-        if (GetID() == LLDB_INVALID_PROCESS_ID)
-        {
-            error.SetErrorString("invalid process id");
-            return error;
-        }
-        if (!m_monitor->Kill())
-        {
-            error.SetErrorToErrno();
-            return error;
-        }
-
-        SetPrivateState(eStateExited);
-    }
-
-    return error;
-}
-
-void
-ProcessPOSIX::DoDidExec()
-{
-    Target *target = &GetTarget();
-    if (target)
-    {
-        PlatformSP platform_sp (target->GetPlatform());
-        assert (platform_sp.get());
-        if (platform_sp)
-        {
-            ProcessInstanceInfo process_info;
-            platform_sp->GetProcessInfo(GetID(), process_info);
-            ModuleSP exe_module_sp;
-            ModuleSpec exe_module_spec(process_info.GetExecutableFile(), target->GetArchitecture());
-            FileSpecList executable_search_paths (Target::GetDefaultExecutableSearchPaths());
-            Error error = platform_sp->ResolveExecutable(exe_module_spec,
-                                                         exe_module_sp,
-                                                         executable_search_paths.GetSize() ? &executable_search_paths : NULL);
-            if (!error.Success())
-                return;
-            target->SetExecutableModule(exe_module_sp, true);
-        }
-    }
-}
-
-void
-ProcessPOSIX::SendMessage(const ProcessMessage &message)
-{
-    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_PROCESS));
-
-    Mutex::Locker lock(m_message_mutex);
-
-    Mutex::Locker thread_lock(m_thread_list.GetMutex());
-
-    POSIXThread *thread = static_cast<POSIXThread*>(
-        m_thread_list.FindThreadByID(message.GetTID(), false).get());
-
-    switch (message.GetKind())
-    {
-    case ProcessMessage::eInvalidMessage:
-        return;
-
-    case ProcessMessage::eAttachMessage:
-        SetPrivateState(eStateStopped);
-        return;
-
-    case ProcessMessage::eLimboMessage:
-        assert(thread);
-        thread->SetState(eStateStopped);
-        if (message.GetTID() == GetID())
-        {
-            m_exit_status = message.GetExitStatus();
-            if (m_exit_now)
-            {
-                SetPrivateState(eStateExited);
-                m_monitor->Detach(GetID());
-            }
-            else
-            {
-                SetPrivateState(eStateStopped);
-            }
-        }
-        else
-        {
-            SetPrivateState(eStateStopped);
-        }
-        break;
-
-    case ProcessMessage::eExitMessage:
-        if (thread != nullptr)
-            thread->SetState(eStateExited);
-        else
-        {
-            if (log)
-                log->Warning ("ProcessPOSIX::%s eExitMessage for TID %" PRIu64 " failed to find a thread to mark as eStateExited, ignoring", __FUNCTION__, message.GetTID ());
-        }
-
-        // FIXME: I'm not sure we need to do this.
-        if (message.GetTID() == GetID())
-        {
-            SetExitStatus(message.GetExitStatus(), NULL);
-        }
-        else if (!IsAThreadRunning())
-            SetPrivateState(eStateStopped);
-        break;
-
-    case ProcessMessage::eSignalMessage:
-    case ProcessMessage::eSignalDeliveredMessage:
-        if (message.GetSignal() == SIGSTOP &&
-            AddThreadForInitialStopIfNeeded(message.GetTID()))
-            return;
-        // Intentional fall-through
-
-    case ProcessMessage::eBreakpointMessage:
-    case ProcessMessage::eTraceMessage:
-    case ProcessMessage::eWatchpointMessage:
-    case ProcessMessage::eCrashMessage:
-        assert(thread);
-        thread->SetState(eStateStopped);
-        SetPrivateState(eStateStopped);
-        break;
-
-    case ProcessMessage::eNewThreadMessage:
-    {
-        lldb::tid_t  new_tid = message.GetChildTID();
-        if (WaitingForInitialStop(new_tid))
-        {
-            m_monitor->WaitForInitialTIDStop(new_tid);
-        }
-        assert(thread);
-        thread->SetState(eStateStopped);
-        SetPrivateState(eStateStopped);
-        break;
-    }
-
-    case ProcessMessage::eExecMessage:
-    {
-        assert(thread);
-        thread->SetState(eStateStopped);
-        SetPrivateState(eStateStopped);
-        break;
-    }
-    }
-
-
-    m_message_queue.push(message);
-}
-
-bool
-ProcessPOSIX::AddThreadForInitialStopIfNeeded(lldb::tid_t stop_tid)
-{
-    bool added_to_set = false;
-    ThreadStopSet::iterator it = m_seen_initial_stop.find(stop_tid);
-    if (it == m_seen_initial_stop.end())
-    {
-        m_seen_initial_stop.insert(stop_tid);
-        added_to_set = true;
-    }
-    return added_to_set;
-}
-
-bool
-ProcessPOSIX::WaitingForInitialStop(lldb::tid_t stop_tid)
-{
-    return (m_seen_initial_stop.find(stop_tid) == m_seen_initial_stop.end());
-}
-
-POSIXThread *
-ProcessPOSIX::CreateNewPOSIXThread(lldb_private::Process &process, lldb::tid_t tid)
-{
-    return new POSIXThread(process, tid);
-}
-
-void
-ProcessPOSIX::RefreshStateAfterStop()
-{
-    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_PROCESS));
-    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
-        log->Printf ("ProcessPOSIX::%s(), message_queue size = %d", __FUNCTION__, (int)m_message_queue.size());
-
-    Mutex::Locker lock(m_message_mutex);
-
-    // This method used to only handle one message.  Changing it to loop allows
-    // it to handle the case where we hit a breakpoint while handling a different
-    // breakpoint.
-    while (!m_message_queue.empty())
-    {
-        ProcessMessage &message = m_message_queue.front();
-
-        // Resolve the thread this message corresponds to and pass it along.
-        lldb::tid_t tid = message.GetTID();
-        if (log)
-            log->Printf ("ProcessPOSIX::%s(), message_queue size = %d, pid = %" PRIi64, __FUNCTION__, (int)m_message_queue.size(), tid);
-
-        if (message.GetKind() == ProcessMessage::eNewThreadMessage)
-        {
-            if (log)
-                log->Printf ("ProcessPOSIX::%s() adding thread, tid = %" PRIi64, __FUNCTION__, message.GetChildTID());
-            lldb::tid_t child_tid = message.GetChildTID();
-            ThreadSP thread_sp;
-            thread_sp.reset(CreateNewPOSIXThread(*this, child_tid));
-
-            Mutex::Locker lock(m_thread_list.GetMutex());
-
-            m_thread_list.AddThread(thread_sp);
-        }
-
-        m_thread_list.RefreshStateAfterStop();
-
-        POSIXThread *thread = static_cast<POSIXThread*>(
-            GetThreadList().FindThreadByID(tid, false).get());
-        if (thread)
-            thread->Notify(message);
-
-        if (message.GetKind() == ProcessMessage::eExitMessage)
-        {
-            // FIXME: We should tell the user about this, but the limbo message is probably better for that.
-            if (log)
-                log->Printf ("ProcessPOSIX::%s() removing thread, tid = %" PRIi64, __FUNCTION__, tid);
-
-            Mutex::Locker lock(m_thread_list.GetMutex());
-
-            ThreadSP thread_sp = m_thread_list.RemoveThreadByID(tid, false);
-            thread_sp.reset();
-            m_seen_initial_stop.erase(tid);
-        }
-
-        m_message_queue.pop();
-    }
-}
-
-bool
-ProcessPOSIX::IsAlive()
-{
-    StateType state = GetPrivateState();
-    return state != eStateDetached
-        && state != eStateExited
-        && state != eStateInvalid
-        && state != eStateUnloaded;
-}
-
-size_t
-ProcessPOSIX::DoReadMemory(addr_t vm_addr,
-                           void *buf, size_t size, Error &error)
-{
-    assert(m_monitor);
-    return m_monitor->ReadMemory(vm_addr, buf, size, error);
-}
-
-size_t
-ProcessPOSIX::DoWriteMemory(addr_t vm_addr, const void *buf, size_t size,
-                            Error &error)
-{
-    assert(m_monitor);
-    return m_monitor->WriteMemory(vm_addr, buf, size, error);
-}
-
-addr_t
-ProcessPOSIX::DoAllocateMemory(size_t size, uint32_t permissions,
-                               Error &error)
-{
-    addr_t allocated_addr = LLDB_INVALID_ADDRESS;
-
-    unsigned prot = 0;
-    if (permissions & lldb::ePermissionsReadable)
-        prot |= eMmapProtRead;
-    if (permissions & lldb::ePermissionsWritable)
-        prot |= eMmapProtWrite;
-    if (permissions & lldb::ePermissionsExecutable)
-        prot |= eMmapProtExec;
-
-    if (InferiorCallMmap(this, allocated_addr, 0, size, prot,
-                         eMmapFlagsAnon | eMmapFlagsPrivate, -1, 0)) {
-        m_addr_to_mmap_size[allocated_addr] = size;
-        error.Clear();
-    } else {
-        allocated_addr = LLDB_INVALID_ADDRESS;
-        error.SetErrorStringWithFormat("unable to allocate %zu bytes of memory with permissions %s", size, GetPermissionsAsCString (permissions));
-    }
-
-    return allocated_addr;
-}
-
-Error
-ProcessPOSIX::DoDeallocateMemory(lldb::addr_t addr)
-{
-    Error error;
-    MMapMap::iterator pos = m_addr_to_mmap_size.find(addr);
-    if (pos != m_addr_to_mmap_size.end() &&
-        InferiorCallMunmap(this, addr, pos->second))
-        m_addr_to_mmap_size.erase (pos);
-    else
-        error.SetErrorStringWithFormat("unable to deallocate memory at 0x%" PRIx64, addr);
-
-    return error;
-}
-
-size_t
-ProcessPOSIX::GetSoftwareBreakpointTrapOpcode(BreakpointSite* bp_site)
-{
-    static const uint8_t g_aarch64_opcode[] = { 0x00, 0x00, 0x20, 0xD4 };
-    static const uint8_t g_i386_opcode[] = { 0xCC };
-
-    ArchSpec arch = GetTarget().GetArchitecture();
-    const uint8_t *opcode = NULL;
-    size_t opcode_size = 0;
-
-    switch (arch.GetMachine())
-    {
-    default:
-        assert(false && "CPU type not supported!");
-        break;
-
-    case llvm::Triple::arm:
-        {
-            // The ARM reference recommends the use of 0xe7fddefe and 0xdefe
-            // but the linux kernel does otherwise.
-            static const uint8_t g_arm_breakpoint_opcode[] = { 0xf0, 0x01, 0xf0, 0xe7 };
-            static const uint8_t g_thumb_breakpoint_opcode[] = { 0x01, 0xde };
-
-            lldb::BreakpointLocationSP bp_loc_sp (bp_site->GetOwnerAtIndex (0));
-            AddressClass addr_class = eAddressClassUnknown;
-
-            if (bp_loc_sp)
-                addr_class = bp_loc_sp->GetAddress ().GetAddressClass ();
-
-            if (addr_class == eAddressClassCodeAlternateISA
-                || (addr_class == eAddressClassUnknown
-                    && bp_loc_sp->GetAddress().GetOffset() & 1))
-            {
-                opcode = g_thumb_breakpoint_opcode;
-                opcode_size = sizeof(g_thumb_breakpoint_opcode);
-            }
-            else
-            {
-                opcode = g_arm_breakpoint_opcode;
-                opcode_size = sizeof(g_arm_breakpoint_opcode);
-            }
-        }
-        break;
-    case llvm::Triple::aarch64:
-        opcode = g_aarch64_opcode;
-        opcode_size = sizeof(g_aarch64_opcode);
-        break;
-
-    case llvm::Triple::x86:
-    case llvm::Triple::x86_64:
-        opcode = g_i386_opcode;
-        opcode_size = sizeof(g_i386_opcode);
-        break;
-    }
-
-    bp_site->SetTrapOpcode(opcode, opcode_size);
-    return opcode_size;
-}
-
-Error
-ProcessPOSIX::EnableBreakpointSite(BreakpointSite *bp_site)
-{
-    return EnableSoftwareBreakpoint(bp_site);
-}
-
-Error
-ProcessPOSIX::DisableBreakpointSite(BreakpointSite *bp_site)
-{
-    return DisableSoftwareBreakpoint(bp_site);
-}
-
-Error
-ProcessPOSIX::EnableWatchpoint(Watchpoint *wp, bool notify)
-{
-    Error error;
-    if (wp)
-    {
-        user_id_t watchID = wp->GetID();
-        addr_t addr = wp->GetLoadAddress();
-        Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet(POSIX_LOG_WATCHPOINTS));
-        if (log)
-            log->Printf ("ProcessPOSIX::EnableWatchpoint(watchID = %" PRIu64 ")",
-                         watchID);
-        if (wp->IsEnabled())
-        {
-            if (log)
-                log->Printf("ProcessPOSIX::EnableWatchpoint(watchID = %" PRIu64
-                            ") addr = 0x%8.8" PRIx64 ": watchpoint already enabled.",
-                            watchID, (uint64_t)addr);
-            return error;
-        }
-
-        // Try to find a vacant watchpoint slot in the inferiors' main thread
-        uint32_t wp_hw_index = LLDB_INVALID_INDEX32;
-        Mutex::Locker lock(m_thread_list.GetMutex());
-        POSIXThread *thread = static_cast<POSIXThread*>(
-                               m_thread_list.GetThreadAtIndex(0, false).get());
-
-        if (thread)
-            wp_hw_index = thread->FindVacantWatchpointIndex();
-
-        if (wp_hw_index == LLDB_INVALID_INDEX32)
-        {
-            error.SetErrorString("Setting hardware watchpoint failed.");
-        }
-        else
-        {
-            wp->SetHardwareIndex(wp_hw_index);
-            bool wp_enabled = true;
-            uint32_t thread_count = m_thread_list.GetSize(false);
-            for (uint32_t i = 0; i < thread_count; ++i)
-            {
-                thread = static_cast<POSIXThread*>(
-                         m_thread_list.GetThreadAtIndex(i, false).get());
-                if (thread)
-                    wp_enabled &= thread->EnableHardwareWatchpoint(wp);
-                else
-                    wp_enabled = false;
-            }
-            if (wp_enabled)
-            {
-                wp->SetEnabled(true, notify);
-                return error;
-            }
-            else
-            {
-                // Watchpoint enabling failed on at least one
-                // of the threads so roll back all of them
-                DisableWatchpoint(wp, false);
-                error.SetErrorString("Setting hardware watchpoint failed");
-            }
-        }
-    }
-    else
-        error.SetErrorString("Watchpoint argument was NULL.");
-    return error;
-}
-
-Error
-ProcessPOSIX::DisableWatchpoint(Watchpoint *wp, bool notify)
-{
-    Error error;
-    if (wp)
-    {
-        user_id_t watchID = wp->GetID();
-        addr_t addr = wp->GetLoadAddress();
-        Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet(POSIX_LOG_WATCHPOINTS));
-        if (log)
-            log->Printf("ProcessPOSIX::DisableWatchpoint(watchID = %" PRIu64 ")",
-                        watchID);
-        if (!wp->IsEnabled())
-        {
-            if (log)
-                log->Printf("ProcessPOSIX::DisableWatchpoint(watchID = %" PRIu64
-                            ") addr = 0x%8.8" PRIx64 ": watchpoint already disabled.",
-                            watchID, (uint64_t)addr);
-            // This is needed (for now) to keep watchpoints disabled correctly
-            wp->SetEnabled(false, notify);
-            return error;
-        }
-
-        if (wp->IsHardware())
-        {
-            bool wp_disabled = true;
-            Mutex::Locker lock(m_thread_list.GetMutex());
-            uint32_t thread_count = m_thread_list.GetSize(false);
-            for (uint32_t i = 0; i < thread_count; ++i)
-            {
-                POSIXThread *thread = static_cast<POSIXThread*>(
-                                      m_thread_list.GetThreadAtIndex(i, false).get());
-                if (thread)
-                    wp_disabled &= thread->DisableHardwareWatchpoint(wp);
-                else
-                    wp_disabled = false;
-            }
-            if (wp_disabled)
-            {
-                wp->SetHardwareIndex(LLDB_INVALID_INDEX32);
-                wp->SetEnabled(false, notify);
-                return error;
-            }
-            else
-                error.SetErrorString("Disabling hardware watchpoint failed");
-        }
-    }
-    else
-        error.SetErrorString("Watchpoint argument was NULL.");
-    return error;
-}
-
-Error
-ProcessPOSIX::GetWatchpointSupportInfo(uint32_t &num)
-{
-    Error error;
-    Mutex::Locker lock(m_thread_list.GetMutex());
-    POSIXThread *thread = static_cast<POSIXThread*>(
-                          m_thread_list.GetThreadAtIndex(0, false).get());
-    if (thread)
-        num = thread->NumSupportedHardwareWatchpoints();
-    else
-        error.SetErrorString("Process does not exist.");
-    return error;
-}
-
-Error
-ProcessPOSIX::GetWatchpointSupportInfo(uint32_t &num, bool &after)
-{
-    Error error = GetWatchpointSupportInfo(num);
-    // Watchpoints trigger and halt the inferior after
-    // the corresponding instruction has been executed.
-    after = true;
-    return error;
-}
-
-uint32_t
-ProcessPOSIX::UpdateThreadListIfNeeded()
-{
-    Mutex::Locker lock(m_thread_list.GetMutex());
-    // Do not allow recursive updates.
-    return m_thread_list.GetSize(false);
-}
-
-bool
-ProcessPOSIX::UpdateThreadList(ThreadList &old_thread_list, ThreadList &new_thread_list)
-{
-    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
-    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
-        log->Printf ("ProcessPOSIX::%s() (pid = %" PRIi64 ")", __FUNCTION__, GetID());
-
-    bool has_updated = false;
-    // Update the process thread list with this new thread.
-    // FIXME: We should be using tid, not pid.
-    assert(m_monitor);
-    ThreadSP thread_sp (old_thread_list.FindThreadByID (GetID(), false));
-    if (!thread_sp) {
-        thread_sp.reset(CreateNewPOSIXThread(*this, GetID()));
-        has_updated = true;
-    }
-
-    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
-        log->Printf ("ProcessPOSIX::%s() updated pid = %" PRIi64, __FUNCTION__, GetID());
-    new_thread_list.AddThread(thread_sp);
-
-    return has_updated; // the list has been updated
-}
-
-ByteOrder
-ProcessPOSIX::GetByteOrder() const
-{
-    // FIXME: We should be able to extract this value directly.  See comment in
-    // ProcessPOSIX().
-    return m_byte_order;
-}
-
-size_t
-ProcessPOSIX::PutSTDIN(const char *buf, size_t len, Error &error)
-{
-    ssize_t status;
-    if ((status = write(m_monitor->GetTerminalFD(), buf, len)) < 0) 
-    {
-        error.SetErrorToErrno();
-        return 0;
-    }
-    return status;
-}
-
-//------------------------------------------------------------------------------
-// Utility functions.
-
-bool
-ProcessPOSIX::HasExited()
-{
-    switch (GetPrivateState())
-    {
-    default:
-        break;
-
-    case eStateDetached:
-    case eStateExited:
-        return true;
-    }
-
-    return false;
-}
-
-bool
-ProcessPOSIX::IsStopped()
-{
-    switch (GetPrivateState())
-    {
-    default:
-        break;
-
-    case eStateStopped:
-    case eStateCrashed:
-    case eStateSuspended:
-        return true;
-    }
-
-    return false;
-}
-
-bool
-ProcessPOSIX::IsAThreadRunning()
-{
-    bool is_running = false;
-    Mutex::Locker lock(m_thread_list.GetMutex());
-    uint32_t thread_count = m_thread_list.GetSize(false);
-    for (uint32_t i = 0; i < thread_count; ++i)
-    {
-        POSIXThread *thread = static_cast<POSIXThread*>(
-            m_thread_list.GetThreadAtIndex(i, false).get());
-        StateType thread_state = thread->GetState();
-        if (thread_state == eStateRunning || thread_state == eStateStepping)
-        {
-            is_running = true;
-            break;
-        }
-    }
-    return is_running;
-}
-
-const DataBufferSP
-ProcessPOSIX::GetAuxvData ()
-{
-    // If we're the local platform, we can ask the host for auxv data.
-    PlatformSP platform_sp = m_target.GetPlatform ();
-    if (platform_sp && platform_sp->IsHost ())
-        return lldb_private::Host::GetAuxvData(this);
-
-    // Somewhat unexpected - the process is not running locally or we don't have a platform.
-    assert (false && "no platform or not the host - how did we get here with ProcessPOSIX?");
-    return DataBufferSP ();
-}
diff --git a/source/Plugins/Process/FreeBSD/ProcessPOSIX.h b/source/Plugins/Process/FreeBSD/ProcessPOSIX.h
deleted file mode 100644
index 627017c547dc4..0000000000000
--- a/source/Plugins/Process/FreeBSD/ProcessPOSIX.h
+++ /dev/null
@@ -1,205 +0,0 @@
-//===-- ProcessPOSIX.h ------------------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef liblldb_ProcessPOSIX_H_
-#define liblldb_ProcessPOSIX_H_
-
-// C Includes
-
-// C++ Includes
-#include <queue>
-#include <set>
-
-// Other libraries and framework includes
-#include "lldb/Target/Process.h"
-#include "ProcessMessage.h"
-
-class ProcessMonitor;
-class POSIXThread;
-
-class ProcessPOSIX :
-    public lldb_private::Process
-{
-public:
-
-    //------------------------------------------------------------------
-    // Constructors and destructors
-    //------------------------------------------------------------------
-    ProcessPOSIX(lldb_private::Target& target,
-                 lldb_private::Listener &listener,
-                 lldb::UnixSignalsSP &unix_signals_sp);
-
-    virtual
-    ~ProcessPOSIX();
-
-    //------------------------------------------------------------------
-    // Process protocol.
-    //------------------------------------------------------------------
-    void
-    Finalize() override;
-
-    bool
-    CanDebug(lldb_private::Target &target, bool plugin_specified_by_name) override;
-
-    lldb_private::Error
-    WillLaunch(lldb_private::Module *module) override;
-
-    lldb_private::Error
-    DoAttachToProcessWithID (lldb::pid_t pid, const lldb_private::ProcessAttachInfo &attach_info) override;
-
-    lldb_private::Error
-    DoLaunch (lldb_private::Module *exe_module, 
-              lldb_private::ProcessLaunchInfo &launch_info) override;
-
-    void
-    DidLaunch() override;
-
-    lldb_private::Error
-    DoResume() override;
-
-    lldb_private::Error
-    DoHalt(bool &caused_stop) override;
-
-    lldb_private::Error
-    DoDetach(bool keep_stopped) override = 0;
-
-    lldb_private::Error
-    DoSignal(int signal) override;
-
-    lldb_private::Error
-    DoDestroy() override;
-
-    void
-    DoDidExec() override;
-
-    void
-    RefreshStateAfterStop() override;
-
-    bool
-    IsAlive() override;
-
-    size_t
-    DoReadMemory(lldb::addr_t vm_addr,
-                 void *buf,
-                 size_t size,
-                 lldb_private::Error &error) override;
-
-    size_t
-    DoWriteMemory(lldb::addr_t vm_addr, const void *buf, size_t size,
-                  lldb_private::Error &error) override;
-
-    lldb::addr_t
-    DoAllocateMemory(size_t size, uint32_t permissions,
-                     lldb_private::Error &error) override;
-
-    lldb_private::Error
-    DoDeallocateMemory(lldb::addr_t ptr) override;
-
-    virtual size_t
-    GetSoftwareBreakpointTrapOpcode(lldb_private::BreakpointSite* bp_site);
-
-    lldb_private::Error
-    EnableBreakpointSite(lldb_private::BreakpointSite *bp_site) override;
-
-    lldb_private::Error
-    DisableBreakpointSite(lldb_private::BreakpointSite *bp_site) override;
-
-    lldb_private::Error
-    EnableWatchpoint(lldb_private::Watchpoint *wp, bool notify = true) override;
-
-    lldb_private::Error
-    DisableWatchpoint(lldb_private::Watchpoint *wp, bool notify = true) override;
-
-    lldb_private::Error
-    GetWatchpointSupportInfo(uint32_t &num) override;
-
-    lldb_private::Error
-    GetWatchpointSupportInfo(uint32_t &num, bool &after) override;
-
-    virtual uint32_t
-    UpdateThreadListIfNeeded();
-
-    bool
-    UpdateThreadList(lldb_private::ThreadList &old_thread_list, 
-                     lldb_private::ThreadList &new_thread_list) override = 0;
-
-    virtual lldb::ByteOrder
-    GetByteOrder() const;
-
-    lldb::addr_t
-    GetImageInfoAddress() override;
-
-    size_t
-    PutSTDIN(const char *buf, size_t len, lldb_private::Error &error) override;
-
-    const lldb::DataBufferSP
-    GetAuxvData () override;
-
-    //--------------------------------------------------------------------------
-    // ProcessPOSIX internal API.
-
-    /// Registers the given message with this process.
-    virtual void
-    SendMessage(const ProcessMessage &message);
-
-    ProcessMonitor &
-    GetMonitor() { assert(m_monitor); return *m_monitor; }
-
-    lldb_private::FileSpec
-    GetFileSpec(const lldb_private::FileAction *file_action,
-                const lldb_private::FileSpec &default_file_spec,
-                const lldb_private::FileSpec &dbg_pts_file_spec);
-
-    /// Adds the thread to the list of threads for which we have received the initial stopping signal.
-    /// The \p stop_tid parameter indicates the thread which the stop happened for.
-    bool
-    AddThreadForInitialStopIfNeeded(lldb::tid_t stop_tid);
-
-    bool
-    WaitingForInitialStop(lldb::tid_t stop_tid);
-
-    virtual POSIXThread *
-    CreateNewPOSIXThread(lldb_private::Process &process, lldb::tid_t tid);
-
-protected:
-    /// Target byte order.
-    lldb::ByteOrder m_byte_order;
-
-    /// Process monitor;
-    ProcessMonitor *m_monitor;
-
-    /// The module we are executing.
-    lldb_private::Module *m_module;
-
-    /// Message queue notifying this instance of inferior process state changes.
-    lldb_private::Mutex m_message_mutex;
-    std::queue<ProcessMessage> m_message_queue;
-
-    /// Drive any exit events to completion.
-    bool m_exit_now;
-
-    /// Returns true if the process has exited.
-    bool HasExited();
-
-    /// Returns true if the process is stopped.
-    bool IsStopped();
-
-    /// Returns true if at least one running is currently running
-    bool IsAThreadRunning();
-
-    typedef std::map<lldb::addr_t, lldb::addr_t> MMapMap;
-    MMapMap m_addr_to_mmap_size;
-
-    typedef std::set<lldb::tid_t> ThreadStopSet;
-    /// Every thread begins with a stop signal. This keeps track
-    /// of the threads for which we have received the stop signal.
-    ThreadStopSet m_seen_initial_stop;
-};
-
-#endif  // liblldb_MacOSXProcess_H_
diff --git a/source/Plugins/Process/Utility/RegisterContextPOSIX.h b/source/Plugins/Process/FreeBSD/RegisterContextPOSIX.h
index 6ddd9cfe4c217..6ddd9cfe4c217 100644
--- a/source/Plugins/Process/Utility/RegisterContextPOSIX.h
+++ b/source/Plugins/Process/FreeBSD/RegisterContextPOSIX.h
diff --git a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm.cpp b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm.cpp
index ac2f81d53929e..9922311fd9dbe 100644
--- a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm.cpp
+++ b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm.cpp
@@ -12,7 +12,7 @@
 #include "lldb/Target/Thread.h"
 
 #include "RegisterContextPOSIX_arm.h"
-#include "ProcessPOSIX.h"
+#include "ProcessFreeBSD.h"
 #include "RegisterContextPOSIXProcessMonitor_arm.h"
 #include "ProcessMonitor.h"
 
@@ -32,7 +32,7 @@ ProcessMonitor &
 RegisterContextPOSIXProcessMonitor_arm::GetMonitor()
 {
     ProcessSP base = CalculateProcess();
-    ProcessPOSIX *process = static_cast<ProcessPOSIX*>(base.get());
+    ProcessFreeBSD *process = static_cast<ProcessFreeBSD*>(base.get());
     return process->GetMonitor();
 }
 
diff --git a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm.h b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm.h
index 12a43c77837c8..3787502a390cc 100644
--- a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm.h
+++ b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm.h
@@ -10,6 +10,7 @@
 #ifndef liblldb_RegisterContextPOSIXProcessMonitor_arm_H_
 #define liblldb_RegisterContextPOSIXProcessMonitor_arm_H_
 
+#include "RegisterContextPOSIX.h"
 #include "Plugins/Process/Utility/RegisterContextPOSIX_arm.h"
 
 class RegisterContextPOSIXProcessMonitor_arm:
diff --git a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm64.cpp b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm64.cpp
index d79def52499f8..012f4b6e15554 100644
--- a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm64.cpp
+++ b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm64.cpp
@@ -12,7 +12,7 @@
 #include "lldb/Target/Thread.h"
 
 #include "Plugins/Process/Utility/RegisterContextPOSIX_arm64.h"
-#include "ProcessPOSIX.h"
+#include "ProcessFreeBSD.h"
 #include "ProcessMonitor.h"
 #include "RegisterContextPOSIXProcessMonitor_arm64.h"
 
@@ -32,7 +32,7 @@ ProcessMonitor &
 RegisterContextPOSIXProcessMonitor_arm64::GetMonitor()
 {
     lldb::ProcessSP base = CalculateProcess();
-    ProcessPOSIX *process = static_cast<ProcessPOSIX*>(base.get());
+    ProcessFreeBSD *process = static_cast<ProcessFreeBSD*>(base.get());
     return process->GetMonitor();
 }
 
@@ -260,13 +260,11 @@ RegisterContextPOSIXProcessMonitor_arm64::HardwareSingleStep(bool enable)
 bool
 RegisterContextPOSIXProcessMonitor_arm64::UpdateAfterBreakpoint()
 {
-    // PC points one byte past the int3 responsible for the breakpoint.
     lldb::addr_t pc;
 
     if ((pc = GetPC()) == LLDB_INVALID_ADDRESS)
         return false;
 
-    SetPC(pc - 1);
     return true;
 }
 
diff --git a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm64.h b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm64.h
index eb24d4852ab8d..729385c4a76ec 100644
--- a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm64.h
+++ b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_arm64.h
@@ -10,6 +10,7 @@
 #ifndef liblldb_RegisterContextPOSIXProcessMonitor_arm64_H_
 #define liblldb_RegisterContextPOSIXProcessMonitor_arm64_H_
 
+#include "RegisterContextPOSIX.h"
 #include "Plugins/Process/Utility/RegisterContextPOSIX_arm64.h"
 
 class RegisterContextPOSIXProcessMonitor_arm64:
diff --git a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_mips64.cpp b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_mips64.cpp
index 893a0f22b6f8d..eeada4b163371 100644
--- a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_mips64.cpp
+++ b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_mips64.cpp
@@ -12,7 +12,7 @@
 #include "lldb/Target/Thread.h"
 
 #include "Plugins/Process/Utility/RegisterContextPOSIX_mips64.h"
-#include "ProcessPOSIX.h"
+#include "ProcessFreeBSD.h"
 #include "ProcessMonitor.h"
 #include "RegisterContextPOSIXProcessMonitor_mips64.h"
 
@@ -32,7 +32,7 @@ ProcessMonitor &
 RegisterContextPOSIXProcessMonitor_mips64::GetMonitor()
 {
     ProcessSP base = CalculateProcess();
-    ProcessPOSIX *process = static_cast<ProcessPOSIX*>(base.get());
+    ProcessFreeBSD *process = static_cast<ProcessFreeBSD*>(base.get());
     return process->GetMonitor();
 }
 
diff --git a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_mips64.h b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_mips64.h
index 79e4468b1adf9..e61621bec197c 100644
--- a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_mips64.h
+++ b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_mips64.h
@@ -10,6 +10,7 @@
 #ifndef liblldb_RegisterContextPOSIXProcessMonitor_mips64_H_
 #define liblldb_RegisterContextPOSIXProcessMonitor_mips64_H_
 
+#include "RegisterContextPOSIX.h"
 #include "Plugins/Process/Utility/RegisterContextPOSIX_mips64.h"
 
 class RegisterContextPOSIXProcessMonitor_mips64:
diff --git a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_powerpc.cpp b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_powerpc.cpp
index 8c12b62a202f8..321e6ea262ce7 100644
--- a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_powerpc.cpp
+++ b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_powerpc.cpp
@@ -12,7 +12,7 @@
 #include "lldb/Target/Thread.h"
 
 #include "RegisterContextPOSIX_powerpc.h"
-#include "ProcessPOSIX.h"
+#include "ProcessFreeBSD.h"
 #include "RegisterContextPOSIXProcessMonitor_powerpc.h"
 #include "ProcessMonitor.h"
 
@@ -32,7 +32,7 @@ ProcessMonitor &
 RegisterContextPOSIXProcessMonitor_powerpc::GetMonitor()
 {
     ProcessSP base = CalculateProcess();
-    ProcessPOSIX *process = static_cast<ProcessPOSIX*>(base.get());
+    ProcessFreeBSD *process = static_cast<ProcessFreeBSD*>(base.get());
     return process->GetMonitor();
 }
 
diff --git a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_powerpc.h b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_powerpc.h
index 5c686df4836fa..ff1d0f36171b6 100644
--- a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_powerpc.h
+++ b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_powerpc.h
@@ -10,6 +10,7 @@
 #ifndef liblldb_RegisterContextPOSIXProcessMonitor_powerpc_H_
 #define liblldb_RegisterContextPOSIXProcessMonitor_powerpc_H_
 
+#include "RegisterContextPOSIX.h"
 #include "Plugins/Process/Utility/RegisterContextPOSIX_powerpc.h"
 
 class RegisterContextPOSIXProcessMonitor_powerpc:
diff --git a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_x86.cpp b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_x86.cpp
index 9245441f659f9..31b9e7a38b21e 100644
--- a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_x86.cpp
+++ b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_x86.cpp
@@ -11,7 +11,7 @@
 #include "lldb/Core/RegisterValue.h"
 #include "lldb/Target/Thread.h"
 
-#include "Plugins/Process/FreeBSD/ProcessPOSIX.h"
+#include "Plugins/Process/FreeBSD/ProcessFreeBSD.h"
 #include "RegisterContextPOSIXProcessMonitor_x86.h"
 #include "Plugins/Process/FreeBSD/ProcessMonitor.h"
 
@@ -58,13 +58,16 @@ RegisterContextPOSIXProcessMonitor_x86_64::RegisterContextPOSIXProcessMonitor_x8
                                                                                      lldb_private::RegisterInfoInterface *register_info)
     : RegisterContextPOSIX_x86(thread, concrete_frame_idx, register_info)
 {
+    // Store byte offset of fctrl (i.e. first register of FPR) wrt 'UserArea'
+    const RegisterInfo *reg_info_fctrl = GetRegisterInfoByName("fctrl");
+    m_fctrl_offset_in_userarea = reg_info_fctrl->byte_offset;
 }
 
 ProcessMonitor &
 RegisterContextPOSIXProcessMonitor_x86_64::GetMonitor()
 {
     ProcessSP base = CalculateProcess();
-    ProcessPOSIX *process = static_cast<ProcessPOSIX*>(base.get());
+    ProcessFreeBSD *process = static_cast<ProcessFreeBSD*>(base.get());
     return process->GetMonitor();
 }
 
@@ -254,10 +257,20 @@ RegisterContextPOSIXProcessMonitor_x86_64::ReadRegister(const RegisterInfo *reg_
     }
 
     // Get pointer to m_fpr.xstate.fxsave variable and set the data from it.
-    assert (reg_info->byte_offset < sizeof(m_fpr));
-    uint8_t *src = (uint8_t *)&m_fpr + reg_info->byte_offset; 
+    // Byte offsets of all registers are calculated wrt 'UserArea' structure.
+    // However, ReadFPR() reads fpu registers {using ptrace(PT_GETFPREGS,..)}
+    // and stores them in 'm_fpr' (of type FPR structure). To extract values of fpu
+    // registers, m_fpr should be read at byte offsets calculated wrt to FPR structure.
+
+    // Since, FPR structure is also one of the member of UserArea structure.
+    // byte_offset(fpu wrt FPR) = byte_offset(fpu wrt UserArea) - byte_offset(fctrl wrt UserArea)
+    assert ( (reg_info->byte_offset - m_fctrl_offset_in_userarea) < sizeof(m_fpr));
+    uint8_t *src = (uint8_t *)&m_fpr + reg_info->byte_offset - m_fctrl_offset_in_userarea;
     switch (reg_info->byte_size)
     {
+        case 1:
+            value.SetUInt8(*(uint8_t *)src);
+            return true;
         case 2:
             value.SetUInt16(*(uint16_t *)src);
             return true;
@@ -308,10 +321,20 @@ RegisterContextPOSIXProcessMonitor_x86_64::WriteRegister(const RegisterInfo *reg
         else
         {
             // Get pointer to m_fpr.xstate.fxsave variable and set the data to it.
-            assert (reg_info->byte_offset < sizeof(m_fpr));
-            uint8_t *dst = (uint8_t *)&m_fpr + reg_info->byte_offset; 
+            // Byte offsets of all registers are calculated wrt 'UserArea' structure.
+            // However, WriteFPR() takes m_fpr (of type FPR structure) and writes only fpu
+            // registers using ptrace(PT_SETFPREGS,..) API. Hence fpu registers should
+            // be written in m_fpr at byte offsets calculated wrt FPR structure.
+
+            // Since, FPR structure is also one of the member of UserArea structure.
+            // byte_offset(fpu wrt FPR) = byte_offset(fpu wrt UserArea) - byte_offset(fctrl wrt UserArea)
+            assert ( (reg_info->byte_offset - m_fctrl_offset_in_userarea) < sizeof(m_fpr));
+            uint8_t *dst = (uint8_t *)&m_fpr + reg_info->byte_offset - m_fctrl_offset_in_userarea;
             switch (reg_info->byte_size)
             {
+                case 1:
+                    *(uint8_t *)dst = value.GetAsUInt8();
+                    break;
                 case 2:
                     *(uint16_t *)dst = value.GetAsUInt16();
                     break;
diff --git a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_x86.h b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_x86.h
index 2afb195c4c365..f55d917ee75d2 100644
--- a/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_x86.h
+++ b/source/Plugins/Process/FreeBSD/RegisterContextPOSIXProcessMonitor_x86.h
@@ -10,6 +10,7 @@
 #ifndef liblldb_RegisterContextPOSIXProcessMonitor_x86_H_
 #define liblldb_RegisterContextPOSIXProcessMonitor_x86_H_
 
+#include "RegisterContextPOSIX.h"
 #include "Plugins/Process/Utility/RegisterContextPOSIX_x86.h"
 
 class RegisterContextPOSIXProcessMonitor_x86_64:
@@ -90,6 +91,7 @@ protected:
 private:
     ProcessMonitor &
     GetMonitor();
+    uint32_t m_fctrl_offset_in_userarea;  // Offset of 'fctrl' in 'UserArea' Structure
 };
 
 #endif
diff --git a/source/Plugins/Process/POSIX/CrashReason.cpp b/source/Plugins/Process/POSIX/CrashReason.cpp
index 6de13f470c5e8..44409a4ce5528 100644
--- a/source/Plugins/Process/POSIX/CrashReason.cpp
+++ b/source/Plugins/Process/POSIX/CrashReason.cpp
@@ -28,11 +28,12 @@ GetCrashReasonForSIGSEGV(const siginfo_t& info)
 
     switch (info.si_code)
     {
+#ifdef SI_KERNEL
     case SI_KERNEL:
-        // Linux will occasionally send spurious SI_KERNEL codes.
-        // (this is poorly documented in sigaction)
+        // Some platforms will occasionally send nonstandard spurious SI_KERNEL codes.
         // One way to get this is via unaligned SIMD loads.
         return CrashReason::eInvalidAddress; // for lack of anything better
+#endif
     case SEGV_MAPERR:
         return CrashReason::eInvalidAddress;
     case SEGV_ACCERR:
diff --git a/source/Plugins/Process/Utility/DynamicRegisterInfo.cpp b/source/Plugins/Process/Utility/DynamicRegisterInfo.cpp
index 4eff442c1a0dc..26de4b549c9fc 100644
--- a/source/Plugins/Process/Utility/DynamicRegisterInfo.cpp
+++ b/source/Plugins/Process/Utility/DynamicRegisterInfo.cpp
@@ -99,7 +99,7 @@ DynamicRegisterInfo::SetRegisterInfo(const StructuredData::Dictionary &dict, con
             return 0;
         }
 
-        // { 'name':'rcx'       , 'bitsize' :  64, 'offset' :  16, 'encoding':'uint'  , 'format':'hex'         , 'set': 0, 'gcc' : 2,
+        // { 'name':'rcx'       , 'bitsize' :  64, 'offset' :  16, 'encoding':'uint'  , 'format':'hex'         , 'set': 0, 'ehframe' : 2,
         // 'dwarf' : 2, 'generic':'arg4', 'alt-name':'arg4', },
         RegisterInfo reg_info;
         std::vector<uint32_t> value_regs;
@@ -325,8 +325,12 @@ DynamicRegisterInfo::SetRegisterInfo(const StructuredData::Dictionary &dict, con
 
         // Fill in the register numbers
         reg_info.kinds[lldb::eRegisterKindLLDB] = i;
-        reg_info.kinds[lldb::eRegisterKindGDB] = i;
-        reg_info_dict->GetValueForKeyAsInteger("gcc", reg_info.kinds[lldb::eRegisterKindGCC], LLDB_INVALID_REGNUM);
+        reg_info.kinds[lldb::eRegisterKindProcessPlugin] = i;
+        uint32_t eh_frame_regno = LLDB_INVALID_REGNUM;
+        reg_info_dict->GetValueForKeyAsInteger("gcc", eh_frame_regno, LLDB_INVALID_REGNUM);
+        if (eh_frame_regno == LLDB_INVALID_REGNUM)
+            reg_info_dict->GetValueForKeyAsInteger("ehframe", eh_frame_regno, LLDB_INVALID_REGNUM);
+        reg_info.kinds[lldb::eRegisterKindEHFrame] = eh_frame_regno;
         reg_info_dict->GetValueForKeyAsInteger("dwarf", reg_info.kinds[lldb::eRegisterKindDWARF], LLDB_INVALID_REGNUM);
         std::string generic_str;
         if (reg_info_dict->GetValueForKeyAsString("generic", generic_str))
@@ -703,12 +707,12 @@ DynamicRegisterInfo::Dump () const
                  m_regs[i].byte_offset,
                  m_regs[i].encoding,
                  FormatManager::GetFormatAsCString (m_regs[i].format));
-        if (m_regs[i].kinds[eRegisterKindGDB] != LLDB_INVALID_REGNUM)
-            s.Printf(", gdb = %3u", m_regs[i].kinds[eRegisterKindGDB]);
+        if (m_regs[i].kinds[eRegisterKindProcessPlugin] != LLDB_INVALID_REGNUM)
+            s.Printf(", process plugin = %3u", m_regs[i].kinds[eRegisterKindProcessPlugin]);
         if (m_regs[i].kinds[eRegisterKindDWARF] != LLDB_INVALID_REGNUM)
             s.Printf(", dwarf = %3u", m_regs[i].kinds[eRegisterKindDWARF]);
-        if (m_regs[i].kinds[eRegisterKindGCC] != LLDB_INVALID_REGNUM)
-            s.Printf(", gcc = %3u", m_regs[i].kinds[eRegisterKindGCC]);
+        if (m_regs[i].kinds[eRegisterKindEHFrame] != LLDB_INVALID_REGNUM)
+            s.Printf(", ehframe = %3u", m_regs[i].kinds[eRegisterKindEHFrame]);
         if (m_regs[i].kinds[eRegisterKindGeneric] != LLDB_INVALID_REGNUM)
             s.Printf(", generic = %3u", m_regs[i].kinds[eRegisterKindGeneric]);
         if (m_regs[i].alt_name)
diff --git a/source/Plugins/Process/Utility/FreeBSDSignals.cpp b/source/Plugins/Process/Utility/FreeBSDSignals.cpp
index c143d36e87c75..e575e2c6a496d 100644
--- a/source/Plugins/Process/Utility/FreeBSDSignals.cpp
+++ b/source/Plugins/Process/Utility/FreeBSDSignals.cpp
@@ -26,70 +26,70 @@ FreeBSDSignals::Reset()
 {
     UnixSignals::Reset();
 
-    //        SIGNO   NAME           SHORT NAME  SUPPRESS STOP   NOTIFY DESCRIPTION 
-    //        ======  ============   ==========  ======== ====== ====== ===================================================
-    AddSignal (32,    "SIGTHR",      "THR",      false,   true , true , "thread interrupt");
-    AddSignal (33,    "SIGLIBRT",    "LIBRT",    false,   true , true , "reserved by real-time library");
-    AddSignal (65,    "SIGRTMIN",    "RTMIN",    false,   true , true , "real time signal 0");
-    AddSignal (66,    "SIGRTMIN+1",  "RTMIN+1",  false,   true , true , "real time signal 1");
-    AddSignal (67,    "SIGRTMIN+2",  "RTMIN+2",  false,   true , true , "real time signal 2");
-    AddSignal (68,    "SIGRTMIN+3",  "RTMIN+3",  false,   true , true , "real time signal 3");
-    AddSignal (69,    "SIGRTMIN+4",  "RTMIN+4",  false,   true , true , "real time signal 4");
-    AddSignal (70,    "SIGRTMIN+5",  "RTMIN+5",  false,   true , true , "real time signal 5");
-    AddSignal (71,    "SIGRTMIN+6",  "RTMIN+6",  false,   true , true , "real time signal 6");
-    AddSignal (72,    "SIGRTMIN+7",  "RTMIN+7",  false,   true , true , "real time signal 7");
-    AddSignal (73,    "SIGRTMIN+8",  "RTMIN+8",  false,   true , true , "real time signal 8");
-    AddSignal (74,    "SIGRTMIN+9",  "RTMIN+9",  false,   true , true , "real time signal 9");
-    AddSignal (75,    "SIGRTMIN+10", "RTMIN+10", false,   true , true , "real time signal 10");
-    AddSignal (76,    "SIGRTMIN+11", "RTMIN+11", false,   true , true , "real time signal 11");
-    AddSignal (77,    "SIGRTMIN+12", "RTMIN+12", false,   true , true , "real time signal 12");
-    AddSignal (78,    "SIGRTMIN+13", "RTMIN+13", false,   true , true , "real time signal 13");
-    AddSignal (79,    "SIGRTMIN+14", "RTMIN+14", false,   true , true , "real time signal 14");
-    AddSignal (80,    "SIGRTMIN+15", "RTMIN+15", false,   true , true , "real time signal 15");
-    AddSignal (81,    "SIGRTMIN+16", "RTMIN+16", false,   true , true , "real time signal 16");
-    AddSignal (82,    "SIGRTMIN+17", "RTMIN+17", false,   true , true , "real time signal 17");
-    AddSignal (83,    "SIGRTMIN+18", "RTMIN+18", false,   true , true , "real time signal 18");
-    AddSignal (84,    "SIGRTMIN+19", "RTMIN+19", false,   true , true , "real time signal 19");
-    AddSignal (85,    "SIGRTMIN+20", "RTMIN+20", false,   true , true , "real time signal 20");
-    AddSignal (86,    "SIGRTMIN+21", "RTMIN+21", false,   true , true , "real time signal 21");
-    AddSignal (87,    "SIGRTMIN+22", "RTMIN+22", false,   true , true , "real time signal 22");
-    AddSignal (88,    "SIGRTMIN+23", "RTMIN+23", false,   true , true , "real time signal 23");
-    AddSignal (89,    "SIGRTMIN+24", "RTMIN+24", false,   true , true , "real time signal 24");
-    AddSignal (90,    "SIGRTMIN+25", "RTMIN+25", false,   true , true , "real time signal 25");
-    AddSignal (91,    "SIGRTMIN+26", "RTMIN+26", false,   true , true , "real time signal 26");
-    AddSignal (92,    "SIGRTMIN+27", "RTMIN+27", false,   true , true , "real time signal 27");
-    AddSignal (93,    "SIGRTMIN+28", "RTMIN+28", false,   true , true , "real time signal 28");
-    AddSignal (94,    "SIGRTMIN+29", "RTMIN+29", false,   true , true , "real time signal 29");
-    AddSignal (95,    "SIGRTMIN+30", "RTMIN+30", false,   true , true , "real time signal 30");
-    AddSignal (96,    "SIGRTMAX-30", "RTMAX-30", false,   true , true , "real time signal 31");
-    AddSignal (97,    "SIGRTMAX-29", "RTMAX-29", false,   true , true , "real time signal 32");
-    AddSignal (98,    "SIGRTMAX-28", "RTMAX-28", false,   true , true , "real time signal 33");
-    AddSignal (99,    "SIGRTMAX-27", "RTMAX-27", false,   true , true , "real time signal 34");
-    AddSignal (100,   "SIGRTMAX-26", "RTMAX-26", false,   true , true , "real time signal 35");
-    AddSignal (101,   "SIGRTMAX-25", "RTMAX-25", false,   true , true , "real time signal 36");
-    AddSignal (102,   "SIGRTMAX-24", "RTMAX-24", false,   true , true , "real time signal 37");
-    AddSignal (103,   "SIGRTMAX-23", "RTMAX-23", false,   true , true , "real time signal 38");
-    AddSignal (104,   "SIGRTMAX-22", "RTMAX-22", false,   true , true , "real time signal 39");
-    AddSignal (105,   "SIGRTMAX-21", "RTMAX-21", false,   true , true , "real time signal 40");
-    AddSignal (106,   "SIGRTMAX-20", "RTMAX-20", false,   true , true , "real time signal 41");
-    AddSignal (107,   "SIGRTMAX-19", "RTMAX-19", false,   true , true , "real time signal 42");
-    AddSignal (108,   "SIGRTMAX-18", "RTMAX-18", false,   true , true , "real time signal 43");
-    AddSignal (109,   "SIGRTMAX-17", "RTMAX-17", false,   true , true , "real time signal 44");
-    AddSignal (110,   "SIGRTMAX-16", "RTMAX-16", false,   true , true , "real time signal 45");
-    AddSignal (111,   "SIGRTMAX-15", "RTMAX-15", false,   true , true , "real time signal 46");
-    AddSignal (112,   "SIGRTMAX-14", "RTMAX-14", false,   true , true , "real time signal 47");
-    AddSignal (113,   "SIGRTMAX-13", "RTMAX-13", false,   true , true , "real time signal 48");
-    AddSignal (114,   "SIGRTMAX-12", "RTMAX-12", false,   true , true , "real time signal 49");
-    AddSignal (115,   "SIGRTMAX-11", "RTMAX-11", false,   true , true , "real time signal 50");
-    AddSignal (116,   "SIGRTMAX-10", "RTMAX-10", false,   true , true , "real time signal 51");
-    AddSignal (117,   "SIGRTMAX-9",  "RTMAX-9",  false,   true , true , "real time signal 52");
-    AddSignal (118,   "SIGRTMAX-8",  "RTMAX-8",  false,   true , true , "real time signal 53");
-    AddSignal (119,   "SIGRTMAX-7",  "RTMAX-7",  false,   true , true , "real time signal 54");
-    AddSignal (120,   "SIGRTMAX-6",  "RTMAX-6",  false,   true , true , "real time signal 55");
-    AddSignal (121,   "SIGRTMAX-5",  "RTMAX-5",  false,   true , true , "real time signal 56");
-    AddSignal (122,   "SIGRTMAX-4",  "RTMAX-4",  false,   true , true , "real time signal 57");
-    AddSignal (123,   "SIGRTMAX-3",  "RTMAX-3",  false,   true , true , "real time signal 58");
-    AddSignal (124,   "SIGRTMAX-2",  "RTMAX-2",  false,   true , true , "real time signal 59");
-    AddSignal (125,   "SIGRTMAX-1",  "RTMAX-1",  false,   true , true , "real time signal 60");
-    AddSignal (126,   "SIGRTMAX",    "RTMAX",    false,   true , true , "real time signal 61");
+    //        SIGNO   NAME            SUPPRESS STOP   NOTIFY DESCRIPTION 
+    //        ======  ============    ======== ====== ====== ===================================================
+    AddSignal (32,    "SIGTHR",       false,   false, false, "thread interrupt");
+    AddSignal (33,    "SIGLIBRT",     false,   false, false, "reserved by real-time library");
+    AddSignal (65,    "SIGRTMIN",     false,   false, false, "real time signal 0");
+    AddSignal (66,    "SIGRTMIN+1",   false,   false, false, "real time signal 1");
+    AddSignal (67,    "SIGRTMIN+2",   false,   false, false, "real time signal 2");
+    AddSignal (68,    "SIGRTMIN+3",   false,   false, false, "real time signal 3");
+    AddSignal (69,    "SIGRTMIN+4",   false,   false, false, "real time signal 4");
+    AddSignal (70,    "SIGRTMIN+5",   false,   false, false, "real time signal 5");
+    AddSignal (71,    "SIGRTMIN+6",   false,   false, false, "real time signal 6");
+    AddSignal (72,    "SIGRTMIN+7",   false,   false, false, "real time signal 7");
+    AddSignal (73,    "SIGRTMIN+8",   false,   false, false, "real time signal 8");
+    AddSignal (74,    "SIGRTMIN+9",   false,   false, false, "real time signal 9");
+    AddSignal (75,    "SIGRTMIN+10",  false,   false, false, "real time signal 10");
+    AddSignal (76,    "SIGRTMIN+11",  false,   false, false, "real time signal 11");
+    AddSignal (77,    "SIGRTMIN+12",  false,   false, false, "real time signal 12");
+    AddSignal (78,    "SIGRTMIN+13",  false,   false, false, "real time signal 13");
+    AddSignal (79,    "SIGRTMIN+14",  false,   false, false, "real time signal 14");
+    AddSignal (80,    "SIGRTMIN+15",  false,   false, false, "real time signal 15");
+    AddSignal (81,    "SIGRTMIN+16",  false,   false, false, "real time signal 16");
+    AddSignal (82,    "SIGRTMIN+17",  false,   false, false, "real time signal 17");
+    AddSignal (83,    "SIGRTMIN+18",  false,   false, false, "real time signal 18");
+    AddSignal (84,    "SIGRTMIN+19",  false,   false, false, "real time signal 19");
+    AddSignal (85,    "SIGRTMIN+20",  false,   false, false, "real time signal 20");
+    AddSignal (86,    "SIGRTMIN+21",  false,   false, false, "real time signal 21");
+    AddSignal (87,    "SIGRTMIN+22",  false,   false, false, "real time signal 22");
+    AddSignal (88,    "SIGRTMIN+23",  false,   false, false, "real time signal 23");
+    AddSignal (89,    "SIGRTMIN+24",  false,   false, false, "real time signal 24");
+    AddSignal (90,    "SIGRTMIN+25",  false,   false, false, "real time signal 25");
+    AddSignal (91,    "SIGRTMIN+26",  false,   false, false, "real time signal 26");
+    AddSignal (92,    "SIGRTMIN+27",  false,   false, false, "real time signal 27");
+    AddSignal (93,    "SIGRTMIN+28",  false,   false, false, "real time signal 28");
+    AddSignal (94,    "SIGRTMIN+29",  false,   false, false, "real time signal 29");
+    AddSignal (95,    "SIGRTMIN+30",  false,   false, false, "real time signal 30");
+    AddSignal (96,    "SIGRTMAX-30",  false,   false, false, "real time signal 31");
+    AddSignal (97,    "SIGRTMAX-29",  false,   false, false, "real time signal 32");
+    AddSignal (98,    "SIGRTMAX-28",  false,   false, false, "real time signal 33");
+    AddSignal (99,    "SIGRTMAX-27",  false,   false, false, "real time signal 34");
+    AddSignal (100,   "SIGRTMAX-26",  false,   false, false, "real time signal 35");
+    AddSignal (101,   "SIGRTMAX-25",  false,   false, false, "real time signal 36");
+    AddSignal (102,   "SIGRTMAX-24",  false,   false, false, "real time signal 37");
+    AddSignal (103,   "SIGRTMAX-23",  false,   false, false, "real time signal 38");
+    AddSignal (104,   "SIGRTMAX-22",  false,   false, false, "real time signal 39");
+    AddSignal (105,   "SIGRTMAX-21",  false,   false, false, "real time signal 40");
+    AddSignal (106,   "SIGRTMAX-20",  false,   false, false, "real time signal 41");
+    AddSignal (107,   "SIGRTMAX-19",  false,   false, false, "real time signal 42");
+    AddSignal (108,   "SIGRTMAX-18",  false,   false, false, "real time signal 43");
+    AddSignal (109,   "SIGRTMAX-17",  false,   false, false, "real time signal 44");
+    AddSignal (110,   "SIGRTMAX-16",  false,   false, false, "real time signal 45");
+    AddSignal (111,   "SIGRTMAX-15",  false,   false, false, "real time signal 46");
+    AddSignal (112,   "SIGRTMAX-14",  false,   false, false, "real time signal 47");
+    AddSignal (113,   "SIGRTMAX-13",  false,   false, false, "real time signal 48");
+    AddSignal (114,   "SIGRTMAX-12",  false,   false, false, "real time signal 49");
+    AddSignal (115,   "SIGRTMAX-11",  false,   false, false, "real time signal 50");
+    AddSignal (116,   "SIGRTMAX-10",  false,   false, false, "real time signal 51");
+    AddSignal (117,   "SIGRTMAX-9",   false,   false, false, "real time signal 52");
+    AddSignal (118,   "SIGRTMAX-8",   false,   false, false, "real time signal 53");
+    AddSignal (119,   "SIGRTMAX-7",   false,   false, false, "real time signal 54");
+    AddSignal (120,   "SIGRTMAX-6",   false,   false, false, "real time signal 55");
+    AddSignal (121,   "SIGRTMAX-5",   false,   false, false, "real time signal 56");
+    AddSignal (122,   "SIGRTMAX-4",   false,   false, false, "real time signal 57");
+    AddSignal (123,   "SIGRTMAX-3",   false,   false, false, "real time signal 58");
+    AddSignal (124,   "SIGRTMAX-2",   false,   false, false, "real time signal 59");
+    AddSignal (125,   "SIGRTMAX-1",   false,   false, false, "real time signal 60");
+    AddSignal (126,   "SIGRTMAX",     false,   false, false, "real time signal 61");
 }
diff --git a/source/Plugins/Process/Utility/HistoryThread.h b/source/Plugins/Process/Utility/HistoryThread.h
index 51173c626d71d..e87f6496134b4 100644
--- a/source/Plugins/Process/Utility/HistoryThread.h
+++ b/source/Plugins/Process/Utility/HistoryThread.h
@@ -10,6 +10,10 @@
 #ifndef liblldb_HistoryThread_h_
 #define liblldb_HistoryThread_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-private.h"
 #include "lldb/Host/Mutex.h"
 #include "lldb/Core/Broadcaster.h"
@@ -37,52 +41,55 @@ class HistoryThread : public lldb_private::Thread
 public:
     HistoryThread (lldb_private::Process &process, lldb::tid_t tid, std::vector<lldb::addr_t> pcs, uint32_t stop_id, bool stop_id_is_valid);
 
-    virtual ~HistoryThread ();
+    ~HistoryThread() override;
 
-    virtual lldb::RegisterContextSP
-    GetRegisterContext ();
+    lldb::RegisterContextSP
+    GetRegisterContext() override;
 
-    virtual lldb::RegisterContextSP
-    CreateRegisterContextForFrame (StackFrame *frame);
+    lldb::RegisterContextSP
+    CreateRegisterContextForFrame(StackFrame *frame) override;
 
-    virtual void
-    RefreshStateAfterStop() { }
+    void
+    RefreshStateAfterStop() override { }
 
     bool
-    CalculateStopInfo () { return false; }
+    CalculateStopInfo() override
+    {
+        return false;
+    }
 
     void 
-    SetExtendedBacktraceToken (uint64_t token)
+    SetExtendedBacktraceToken(uint64_t token) override
     {
         m_extended_unwind_token = token;
     }
 
     uint64_t
-    GetExtendedBacktraceToken ()
+    GetExtendedBacktraceToken() override
     {
         return m_extended_unwind_token;
     }
 
     const char *
-    GetQueueName ()
+    GetQueueName() override
     {
         return m_queue_name.c_str();
     }
 
     void
-    SetQueueName (const char *name)
+    SetQueueName(const char *name) override
     {
         m_queue_name = name;
     }
 
     lldb::queue_id_t
-    GetQueueID ()
+    GetQueueID() override
     {
         return m_queue_id;
     }
 
     void
-    SetQueueID (lldb::queue_id_t queue)
+    SetQueueID(lldb::queue_id_t queue) override
     {
         m_queue_id = queue;
     }
@@ -94,7 +101,7 @@ public:
     }
 
     uint32_t
-    GetExtendedBacktraceOriginatingIndexID ();
+    GetExtendedBacktraceOriginatingIndexID() override;
 
     void
     SetThreadName (const char *name)
@@ -102,14 +109,14 @@ public:
         m_thread_name = name;
     }
     
-    virtual const char *
-    GetName ()
+    const char *
+    GetName() override
     {
         return m_thread_name.c_str();
     }
     
-    virtual void
-    SetName(const char *name)
+    void
+    SetName(const char *name) override
     {
         m_thread_name = name;
     }
@@ -133,4 +140,4 @@ protected:
 
 } // namespace lldb_private
 
-#endif  // liblldb_HistoryThread_h_
+#endif // liblldb_HistoryThread_h_
diff --git a/source/Plugins/Process/Utility/HistoryUnwind.h b/source/Plugins/Process/Utility/HistoryUnwind.h
index 733f93e1ff87e..2cb78bc1dc637 100644
--- a/source/Plugins/Process/Utility/HistoryUnwind.h
+++ b/source/Plugins/Process/Utility/HistoryUnwind.h
@@ -10,8 +10,12 @@
 #ifndef liblldb_HistoryUnwind_h_
 #define liblldb_HistoryUnwind_h_
 
+// C Includes
+// C++ Includes
 #include <vector>
 
+// Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-private.h"
 #include "lldb/Host/Mutex.h"
 #include "lldb/Target/Unwind.h"
@@ -23,21 +27,21 @@ class HistoryUnwind : public lldb_private::Unwind
 public:
     HistoryUnwind (Thread &thread, std::vector<lldb::addr_t> pcs, bool stop_id_is_valid);
 
-    virtual ~HistoryUnwind ();
+    ~HistoryUnwind() override;
 
 protected:
     void
-    DoClear();
+    DoClear() override;
 
     lldb::RegisterContextSP
-    DoCreateRegisterContextForFrame (StackFrame *frame);
+    DoCreateRegisterContextForFrame(StackFrame *frame) override;
 
     bool
-    DoGetFrameInfoAtIndex (uint32_t frame_idx,
-                           lldb::addr_t& cfa, 
-                           lldb::addr_t& pc);
+    DoGetFrameInfoAtIndex(uint32_t frame_idx,
+                          lldb::addr_t& cfa, 
+                          lldb::addr_t& pc) override;
     uint32_t
-    DoGetFrameCount ();
+    DoGetFrameCount() override;
 
 private:
 
@@ -47,4 +51,4 @@ private:
 
 } // namespace lldb_private
 
-#endif  // liblldb_HistoryUnwind_h_
+#endif // liblldb_HistoryUnwind_h_
diff --git a/source/Plugins/Process/Utility/InferiorCallPOSIX.cpp b/source/Plugins/Process/Utility/InferiorCallPOSIX.cpp
index 3923c54334067..bd3978cc0ab41 100644
--- a/source/Plugins/Process/Utility/InferiorCallPOSIX.cpp
+++ b/source/Plugins/Process/Utility/InferiorCallPOSIX.cpp
@@ -93,7 +93,7 @@ lldb_private::InferiorCallMmap (Process *process,
             if (sc.GetAddressRange(range_scope, 0, use_inline_block_range, mmap_range))
             {
                 ClangASTContext *clang_ast_context = process->GetTarget().GetScratchClangASTContext();
-                ClangASTType clang_void_ptr_type = clang_ast_context->GetBasicType(eBasicTypeVoid).GetPointerType();
+                CompilerType clang_void_ptr_type = clang_ast_context->GetBasicType(eBasicTypeVoid).GetPointerType();
                 lldb::addr_t args[] = { addr, length, prot_arg, flags_arg, fd, offset };
                 lldb::ThreadPlanSP call_plan_sp (new ThreadPlanCallFunction (*thread,
                                                                              mmap_range.GetBaseAddress(),
@@ -103,9 +103,6 @@ lldb_private::InferiorCallMmap (Process *process,
                 if (call_plan_sp)
                 {
                     StreamFile error_strm;
-                    // This plan is a utility plan, so set it to discard itself when done.
-                    call_plan_sp->SetIsMasterPlan (true);
-                    call_plan_sp->SetOkayToDiscard(true);
                     
                     StackFrame *frame = thread->GetStackFrameAtIndex (0).get();
                     if (frame)
@@ -182,15 +179,12 @@ lldb_private::InferiorCallMunmap (Process *process,
                 lldb::addr_t args[] = { addr, length };
                 lldb::ThreadPlanSP call_plan_sp (new ThreadPlanCallFunction (*thread,
                                                                             munmap_range.GetBaseAddress(),
-                                                                            ClangASTType(),
+                                                                            CompilerType(),
                                                                             args,
                                                                             options));
                 if (call_plan_sp)
                 {
                     StreamFile error_strm;
-                    // This plan is a utility plan, so set it to discard itself when done.
-                    call_plan_sp->SetIsMasterPlan (true);
-                    call_plan_sp->SetOkayToDiscard(true);
                    
                     StackFrame *frame = thread->GetStackFrameAtIndex (0).get();
                     if (frame)
@@ -235,7 +229,7 @@ lldb_private::InferiorCall (Process *process,
     options.SetTimeoutUsec(500000);
 
     ClangASTContext *clang_ast_context = process->GetTarget().GetScratchClangASTContext();
-    ClangASTType clang_void_ptr_type = clang_ast_context->GetBasicType(eBasicTypeVoid).GetPointerType();
+    CompilerType clang_void_ptr_type = clang_ast_context->GetBasicType(eBasicTypeVoid).GetPointerType();
     lldb::ThreadPlanSP call_plan_sp (new ThreadPlanCallFunction (*thread,
                                                                  *address,
                                                                  clang_void_ptr_type,
@@ -244,9 +238,6 @@ lldb_private::InferiorCall (Process *process,
     if (call_plan_sp)
     {
         StreamString error_strm;
-        // This plan is a utility plan, so set it to discard itself when done.
-        call_plan_sp->SetIsMasterPlan (true);
-        call_plan_sp->SetOkayToDiscard(true);
 
         StackFrame *frame = thread->GetStackFrameAtIndex (0).get();
         if (frame)
diff --git a/source/Plugins/Process/Utility/LinuxSignals.cpp b/source/Plugins/Process/Utility/LinuxSignals.cpp
index cd1fc8165eb9c..5687577f9d165 100644
--- a/source/Plugins/Process/Utility/LinuxSignals.cpp
+++ b/source/Plugins/Process/Utility/LinuxSignals.cpp
@@ -24,72 +24,70 @@ void
 LinuxSignals::Reset()
 {
     m_signals.clear();
-
-    AddSignal (1,    "SIGHUP",      "HUP",      false,   true , true , "hangup");
-    AddSignal (2,    "SIGINT",      "INT",      true ,   true , true , "interrupt");
-    AddSignal (3,    "SIGQUIT",     "QUIT",     false,   true , true , "quit");
-    AddSignal (4,    "SIGILL",      "ILL",      false,   true , true , "illegal instruction");
-    AddSignal (5,    "SIGTRAP",     "TRAP",     true ,   true , true , "trace trap (not reset when caught)");
-    AddSignal (6,    "SIGABRT",     "ABRT",     false,   true , true , "abort()");
-    AddSignal (6,    "SIGIOT",      "IOT",      false,   true , true , "IOT trap");
-    AddSignal (7,    "SIGBUS",      "BUS",      false,   true , true , "bus error");
-    AddSignal (8,    "SIGFPE",      "FPE",      false,   true , true , "floating point exception");
-    AddSignal (9,    "SIGKILL",     "KILL",     false,   true , true , "kill");
-    AddSignal (10,   "SIGUSR1",     "USR1",     false,   true , true , "user defined signal 1");
-    AddSignal (11,   "SIGSEGV",     "SEGV",     false,   true , true , "segmentation violation");
-    AddSignal (12,   "SIGUSR2",     "USR2",     false,   true , true , "user defined signal 2");
-    AddSignal (13,   "SIGPIPE",     "PIPE",     false,   true , true , "write to pipe with reading end closed");
-    AddSignal (14,   "SIGALRM",     "ALRM",     false,   false, false, "alarm");
-    AddSignal (15,   "SIGTERM",     "TERM",     false,   true , true , "termination requested");
-    AddSignal (16,   "SIGSTKFLT",   "STKFLT",   false,   true , true , "stack fault");
-    AddSignal (16,   "SIGCLD",      "CLD",      false,   false, true , "same as SIGCHLD");
-    AddSignal (17,   "SIGCHLD",     "CHLD",     false,   false, true , "child status has changed");
-    AddSignal (18,   "SIGCONT",     "CONT",     false,   true , true , "process continue");
-    AddSignal (19,   "SIGSTOP",     "STOP",     true ,   true , true , "process stop");
-    AddSignal (20,   "SIGTSTP",     "TSTP",     false,   true , true , "tty stop");
-    AddSignal (21,   "SIGTTIN",     "TTIN",     false,   true , true , "background tty read");
-    AddSignal (22,   "SIGTTOU",     "TTOU",     false,   true , true , "background tty write");
-    AddSignal (23,   "SIGURG",      "URG",      false,   true , true , "urgent data on socket");
-    AddSignal (24,   "SIGXCPU",     "XCPU",     false,   true , true , "CPU resource exceeded");
-    AddSignal (25,   "SIGXFSZ",     "XFSZ",     false,   true , true , "file size limit exceeded");
-    AddSignal (26,   "SIGVTALRM",   "VTALRM",   false,   true , true , "virtual time alarm");
-    AddSignal (27,   "SIGPROF",     "PROF",     false,   false, false, "profiling time alarm");
-    AddSignal (28,   "SIGWINCH",    "WINCH",    false,   true , true , "window size changes");
-    AddSignal (29,   "SIGPOLL",     "POLL",     false,   true , true , "pollable event");
-    AddSignal (29,   "SIGIO",       "IO",       false,   true , true , "input/output ready");
-    AddSignal (30,   "SIGPWR",      "PWR",      false,   true , true , "power failure");
-    AddSignal (31,   "SIGSYS",      "SYS",      false,   true , true , "invalid system call");
-    AddSignal (32,   "SIG32",       "SIG32",    false,   true , true , "threading library internal signal 1");
-    AddSignal (33,   "SIG33",       "SIG33",    false,   true , true , "threading library internal signal 2");
-    AddSignal (34,   "SIGRTMIN",    "RTMIN",    false,   true , true , "real time signal 0");
-    AddSignal (35,   "SIGRTMIN+1",  "RTMIN+1",  false,   true , true , "real time signal 1");
-    AddSignal (36,   "SIGRTMIN+2",  "RTMIN+2",  false,   true , true , "real time signal 2");
-    AddSignal (37,   "SIGRTMIN+3",  "RTMIN+3",  false,   true , true , "real time signal 3");
-    AddSignal (38,   "SIGRTMIN+4",  "RTMIN+4",  false,   true , true , "real time signal 4");
-    AddSignal (39,   "SIGRTMIN+5",  "RTMIN+5",  false,   true , true , "real time signal 5");
-    AddSignal (40,   "SIGRTMIN+6",  "RTMIN+6",  false,   true , true , "real time signal 6");
-    AddSignal (41,   "SIGRTMIN+7",  "RTMIN+7",  false,   true , true , "real time signal 7");
-    AddSignal (42,   "SIGRTMIN+8",  "RTMIN+8",  false,   true , true , "real time signal 8");
-    AddSignal (43,   "SIGRTMIN+9",  "RTMIN+9",  false,   true , true , "real time signal 9");
-    AddSignal (44,   "SIGRTMIN+10", "RTMIN+10", false,   true , true , "real time signal 10");
-    AddSignal (45,   "SIGRTMIN+11", "RTMIN+11", false,   true , true , "real time signal 11");
-    AddSignal (46,   "SIGRTMIN+12", "RTMIN+12", false,   true , true , "real time signal 12");
-    AddSignal (47,   "SIGRTMIN+13", "RTMIN+13", false,   true , true , "real time signal 13");
-    AddSignal (48,   "SIGRTMIN+14", "RTMIN+14", false,   true , true , "real time signal 14");
-    AddSignal (49,   "SIGRTMIN+15", "RTMIN+15", false,   true , true , "real time signal 15");
-    AddSignal (50,   "SIGRTMAX-14", "RTMAX-14", false,   true , true , "real time signal 16"); // switching to SIGRTMAX-xxx to match "kill -l" output
-    AddSignal (51,   "SIGRTMAX-13", "RTMAX-13", false,   true , true , "real time signal 17");
-    AddSignal (52,   "SIGRTMAX-12", "RTMAX-12", false,   true , true , "real time signal 18");
-    AddSignal (53,   "SIGRTMAX-11", "RTMAX-11", false,   true , true , "real time signal 19");
-    AddSignal (54,   "SIGRTMAX-10", "RTMAX-10", false,   true , true , "real time signal 20");
-    AddSignal (55,   "SIGRTMAX-9",  "RTMAX-9",  false,   true , true , "real time signal 21");
-    AddSignal (56,   "SIGRTMAX-8",  "RTMAX-8",  false,   true , true , "real time signal 22");
-    AddSignal (57,   "SIGRTMAX-7",  "RTMAX-7",  false,   true , true , "real time signal 23");
-    AddSignal (58,   "SIGRTMAX-6",  "RTMAX-6",  false,   true , true , "real time signal 24");
-    AddSignal (59,   "SIGRTMAX-5",  "RTMAX-5",  false,   true , true , "real time signal 25");
-    AddSignal (60,   "SIGRTMAX-4",  "RTMAX-4",  false,   true , true , "real time signal 26");
-    AddSignal (61,   "SIGRTMAX-3",  "RTMAX-3",  false,   true , true , "real time signal 27");
-    AddSignal (62,   "SIGRTMAX-2",  "RTMAX-2",  false,   true , true , "real time signal 28");
-    AddSignal (63,   "SIGRTMAX-1",  "RTMAX-1",  false,   true , true , "real time signal 29");
-    AddSignal (64,   "SIGRTMAX",    "RTMAX",    false,   true , true , "real time signal 30");
+    //        SIGNO  NAME             SUPPRESS STOP   NOTIFY DESCRIPTION                              ALIAS
+    //        =====  ===========      ======== =====  ====== ======================================   ======
+    AddSignal (1,    "SIGHUP",        false,   true , true , "hangup"                                        );
+    AddSignal (2,    "SIGINT",        true ,   true , true , "interrupt"                                     );
+    AddSignal (3,    "SIGQUIT",       false,   true , true , "quit"                                          );
+    AddSignal (4,    "SIGILL",        false,   true , true , "illegal instruction"                           );
+    AddSignal (5,    "SIGTRAP",       true ,   true , true , "trace trap (not reset when caught)"            );
+    AddSignal (6,    "SIGABRT",       false,   true , true , "abort()/IOT trap",                     "SIGIOT");
+    AddSignal (7,    "SIGBUS",        false,   true , true , "bus error"                                     );
+    AddSignal (8,    "SIGFPE",        false,   true , true , "floating point exception"                      );
+    AddSignal (9,    "SIGKILL",       false,   true , true , "kill"                                          );
+    AddSignal (10,   "SIGUSR1",       false,   true , true , "user defined signal 1"                         );
+    AddSignal (11,   "SIGSEGV",       false,   true , true , "segmentation violation"                        );
+    AddSignal (12,   "SIGUSR2",       false,   true , true , "user defined signal 2"                         );
+    AddSignal (13,   "SIGPIPE",       false,   true , true , "write to pipe with reading end closed"         );
+    AddSignal (14,   "SIGALRM",       false,   false, false, "alarm"                                         );
+    AddSignal (15,   "SIGTERM",       false,   true , true , "termination requested"                         );
+    AddSignal (16,   "SIGSTKFLT",     false,   true , true , "stack fault"                                   );
+    AddSignal (17,   "SIGCHLD",       false,   false, true , "child status has changed",             "SIGCLD");
+    AddSignal (18,   "SIGCONT",       false,   true , true , "process continue"                              );
+    AddSignal (19,   "SIGSTOP",       true ,   true , true , "process stop"                                  );
+    AddSignal (20,   "SIGTSTP",       false,   true , true , "tty stop"                                      );
+    AddSignal (21,   "SIGTTIN",       false,   true , true , "background tty read"                           );
+    AddSignal (22,   "SIGTTOU",       false,   true , true , "background tty write"                          );
+    AddSignal (23,   "SIGURG",        false,   true , true , "urgent data on socket"                         );
+    AddSignal (24,   "SIGXCPU",       false,   true , true , "CPU resource exceeded"                         );
+    AddSignal (25,   "SIGXFSZ",       false,   true , true , "file size limit exceeded"                      );
+    AddSignal (26,   "SIGVTALRM",     false,   true , true , "virtual time alarm"                            );
+    AddSignal (27,   "SIGPROF",       false,   false, false, "profiling time alarm"                          );
+    AddSignal (28,   "SIGWINCH",      false,   true , true , "window size changes"                           );
+    AddSignal (29,   "SIGIO",         false,   true , true , "input/output ready/Pollable event",   "SIGPOLL");
+    AddSignal (30,   "SIGPWR",        false,   true , true , "power failure"                                 );
+    AddSignal (31,   "SIGSYS",        false,   true , true , "invalid system call"                           );
+    AddSignal (32,   "SIG32",         false,   false, false, "threading library internal signal 1"           );
+    AddSignal (33,   "SIG33",         false,   false, false, "threading library internal signal 2"           );
+    AddSignal (34,   "SIGRTMIN",      false,   false, false, "real time signal 0"                            );
+    AddSignal (35,   "SIGRTMIN+1",    false,   false, false, "real time signal 1"                            );
+    AddSignal (36,   "SIGRTMIN+2",    false,   false, false, "real time signal 2"                            );
+    AddSignal (37,   "SIGRTMIN+3",    false,   false, false, "real time signal 3"                            );
+    AddSignal (38,   "SIGRTMIN+4",    false,   false, false, "real time signal 4"                            );
+    AddSignal (39,   "SIGRTMIN+5",    false,   false, false, "real time signal 5"                            );
+    AddSignal (40,   "SIGRTMIN+6",    false,   false, false, "real time signal 6"                            );
+    AddSignal (41,   "SIGRTMIN+7",    false,   false, false, "real time signal 7"                            );
+    AddSignal (42,   "SIGRTMIN+8",    false,   false, false, "real time signal 8"                            );
+    AddSignal (43,   "SIGRTMIN+9",    false,   false, false, "real time signal 9"                            );
+    AddSignal (44,   "SIGRTMIN+10",   false,   false, false, "real time signal 10"                           );
+    AddSignal (45,   "SIGRTMIN+11",   false,   false, false, "real time signal 11"                           );
+    AddSignal (46,   "SIGRTMIN+12",   false,   false, false, "real time signal 12"                           );
+    AddSignal (47,   "SIGRTMIN+13",   false,   false, false, "real time signal 13"                           );
+    AddSignal (48,   "SIGRTMIN+14",   false,   false, false, "real time signal 14"                           );
+    AddSignal (49,   "SIGRTMIN+15",   false,   false, false, "real time signal 15"                           );
+    AddSignal (50,   "SIGRTMAX-14",   false,   false, false, "real time signal 16"                           ); // switching to SIGRTMAX-xxx to match "kill -l" output
+    AddSignal (51,   "SIGRTMAX-13",   false,   false, false, "real time signal 17"                           );
+    AddSignal (52,   "SIGRTMAX-12",   false,   false, false, "real time signal 18"                           );
+    AddSignal (53,   "SIGRTMAX-11",   false,   false, false, "real time signal 19"                           );
+    AddSignal (54,   "SIGRTMAX-10",   false,   false, false, "real time signal 20"                           );
+    AddSignal (55,   "SIGRTMAX-9",    false,   false, false, "real time signal 21"                           );
+    AddSignal (56,   "SIGRTMAX-8",    false,   false, false, "real time signal 22"                           );
+    AddSignal (57,   "SIGRTMAX-7",    false,   false, false, "real time signal 23"                           );
+    AddSignal (58,   "SIGRTMAX-6",    false,   false, false, "real time signal 24"                           );
+    AddSignal (59,   "SIGRTMAX-5",    false,   false, false, "real time signal 25"                           );
+    AddSignal (60,   "SIGRTMAX-4",    false,   false, false, "real time signal 26"                           );
+    AddSignal (61,   "SIGRTMAX-3",    false,   false, false, "real time signal 27"                           );
+    AddSignal (62,   "SIGRTMAX-2",    false,   false, false, "real time signal 28"                           );
+    AddSignal (63,   "SIGRTMAX-1",    false,   false, false, "real time signal 29"                           );
+    AddSignal (64,   "SIGRTMAX",      false,   false, false, "real time signal 30"                           );
 }
diff --git a/source/Plugins/Process/Utility/MipsLinuxSignals.cpp b/source/Plugins/Process/Utility/MipsLinuxSignals.cpp
index 1dc0be81c0aee..422fc9b642d0e 100644
--- a/source/Plugins/Process/Utility/MipsLinuxSignals.cpp
+++ b/source/Plugins/Process/Utility/MipsLinuxSignals.cpp
@@ -24,72 +24,70 @@ void
 MipsLinuxSignals::Reset()
 {
     m_signals.clear();
-
-    AddSignal (1,    "SIGHUP",      "HUP",      false,   true , true , "hangup");
-    AddSignal (2,    "SIGINT",      "INT",      true ,   true , true , "interrupt");
-    AddSignal (3,    "SIGQUIT",     "QUIT",     false,   true , true , "quit");
-    AddSignal (4,    "SIGILL",      "ILL",      false,   true , true , "illegal instruction");
-    AddSignal (5,    "SIGTRAP",     "TRAP",     true ,   true , true , "trace trap (not reset when caught)");
-    AddSignal (6,    "SIGABRT",     "ABRT",     false,   true , true , "abort()");
-    AddSignal (6,    "SIGIOT",      "IOT",      false,   true , true , "IOT trap");
-    AddSignal (7,    "SIGEMT",      "EMT",      false,   true , true , "terminate process with core dump");
-    AddSignal (8,    "SIGFPE",      "FPE",      false,   true , true , "floating point exception");
-    AddSignal (9,    "SIGKILL",     "KILL",     false,   true , true , "kill");
-    AddSignal (10,   "SIGBUS",      "BUS",      false,   true , true , "bus error");
-    AddSignal (11,   "SIGSEGV",     "SEGV",     false,   true , true , "segmentation violation");
-    AddSignal (12,   "SIGSYS",      "SYS",      false,   true , true , "invalid system call");
-    AddSignal (13,   "SIGPIPE",     "PIPE",     false,   true , true , "write to pipe with reading end closed");
-    AddSignal (14,   "SIGALRM",     "ALRM",     false,   false, false, "alarm");
-    AddSignal (15,   "SIGTERM",     "TERM",     false,   true , true , "termination requested");
-    AddSignal (16,   "SIGUSR1",     "USR1",     false,   true , true , "user defined signal 1");
-    AddSignal (17,   "SIGUSR2",     "USR2",     false,   true , true , "user defined signal 2");
-    AddSignal (18,   "SIGCLD",      "CLD",      false,   false, true , "same as SIGCHLD");
-    AddSignal (18,   "SIGCHLD",     "CHLD",     false,   false, true , "child status has changed");
-    AddSignal (19,   "SIGPWR",      "PWR",      false,   true , true , "power failure");
-    AddSignal (20,   "SIGWINCH",    "WINCH",    false,   true , true , "window size changes");
-    AddSignal (21,   "SIGURG",      "URG",      false,   true , true , "urgent data on socket");
-    AddSignal (22,   "SIGIO",       "IO",       false,   true , true , "input/output ready");
-    AddSignal (22,   "SIGPOLL",     "POLL",     false,   true , true , "pollable event");
-    AddSignal (23,   "SIGSTOP",     "STOP",     true ,   true , true , "process stop");
-    AddSignal (24,   "SIGTSTP",     "TSTP",     false,   true , true , "tty stop");
-    AddSignal (25,   "SIGCONT",     "CONT",     false,   true , true , "process continue");
-    AddSignal (26,   "SIGTTIN",     "TTIN",     false,   true , true , "background tty read");
-    AddSignal (27,   "SIGTTOU",     "TTOU",     false,   true , true , "background tty write");
-    AddSignal (28,   "SIGVTALRM",   "VTALRM",   false,   true , true , "virtual time alarm");
-    AddSignal (29,   "SIGPROF",     "PROF",     false,   false, false, "profiling time alarm");
-    AddSignal (30,   "SIGXCPU",     "XCPU",     false,   true , true , "CPU resource exceeded");
-    AddSignal (31,   "SIGXFSZ",     "XFSZ",     false,   true , true , "file size limit exceeded");
-    AddSignal (32,   "SIG32",       "SIG32",    false,   true , true , "threading library internal signal 1");
-    AddSignal (33,   "SIG33",       "SIG33",    false,   true , true , "threading library internal signal 2");
-    AddSignal (34,   "SIGRTMIN",    "RTMIN",    false,   true , true , "real time signal 0");
-    AddSignal (35,   "SIGRTMIN+1",  "RTMIN+1",  false,   true , true , "real time signal 1");
-    AddSignal (36,   "SIGRTMIN+2",  "RTMIN+2",  false,   true , true , "real time signal 2");
-    AddSignal (37,   "SIGRTMIN+3",  "RTMIN+3",  false,   true , true , "real time signal 3");
-    AddSignal (38,   "SIGRTMIN+4",  "RTMIN+4",  false,   true , true , "real time signal 4");
-    AddSignal (39,   "SIGRTMIN+5",  "RTMIN+5",  false,   true , true , "real time signal 5");
-    AddSignal (40,   "SIGRTMIN+6",  "RTMIN+6",  false,   true , true , "real time signal 6");
-    AddSignal (41,   "SIGRTMIN+7",  "RTMIN+7",  false,   true , true , "real time signal 7");
-    AddSignal (42,   "SIGRTMIN+8",  "RTMIN+8",  false,   true , true , "real time signal 8");
-    AddSignal (43,   "SIGRTMIN+9",  "RTMIN+9",  false,   true , true , "real time signal 9");
-    AddSignal (44,   "SIGRTMIN+10", "RTMIN+10", false,   true , true , "real time signal 10");
-    AddSignal (45,   "SIGRTMIN+11", "RTMIN+11", false,   true , true , "real time signal 11");
-    AddSignal (46,   "SIGRTMIN+12", "RTMIN+12", false,   true , true , "real time signal 12");
-    AddSignal (47,   "SIGRTMIN+13", "RTMIN+13", false,   true , true , "real time signal 13");
-    AddSignal (48,   "SIGRTMIN+14", "RTMIN+14", false,   true , true , "real time signal 14");
-    AddSignal (49,   "SIGRTMIN+15", "RTMIN+15", false,   true , true , "real time signal 15");
-    AddSignal (50,   "SIGRTMAX-14", "RTMAX-14", false,   true , true , "real time signal 16"); // switching to SIGRTMAX-xxx to match "kill -l" output
-    AddSignal (51,   "SIGRTMAX-13", "RTMAX-13", false,   true , true , "real time signal 17");
-    AddSignal (52,   "SIGRTMAX-12", "RTMAX-12", false,   true , true , "real time signal 18");
-    AddSignal (53,   "SIGRTMAX-11", "RTMAX-11", false,   true , true , "real time signal 19");
-    AddSignal (54,   "SIGRTMAX-10", "RTMAX-10", false,   true , true , "real time signal 20");
-    AddSignal (55,   "SIGRTMAX-9",  "RTMAX-9",  false,   true , true , "real time signal 21");
-    AddSignal (56,   "SIGRTMAX-8",  "RTMAX-8",  false,   true , true , "real time signal 22");
-    AddSignal (57,   "SIGRTMAX-7",  "RTMAX-7",  false,   true , true , "real time signal 23");
-    AddSignal (58,   "SIGRTMAX-6",  "RTMAX-6",  false,   true , true , "real time signal 24");
-    AddSignal (59,   "SIGRTMAX-5",  "RTMAX-5",  false,   true , true , "real time signal 25");
-    AddSignal (60,   "SIGRTMAX-4",  "RTMAX-4",  false,   true , true , "real time signal 26");
-    AddSignal (61,   "SIGRTMAX-3",  "RTMAX-3",  false,   true , true , "real time signal 27");
-    AddSignal (62,   "SIGRTMAX-2",  "RTMAX-2",  false,   true , true , "real time signal 28");
-    AddSignal (63,   "SIGRTMAX-1",  "RTMAX-1",  false,   true , true , "real time signal 29");
-    AddSignal (64,   "SIGRTMAX",    "RTMAX",    false,   true , true , "real time signal 30");
+    //        SIGNO  NAME            SUPPRESS STOP   NOTIFY DESCRIPTION                              ALIAS
+    //        =====  ===========     ======== =====  ====== ======================================   ========
+    AddSignal (1,    "SIGHUP",       false,   true , true , "hangup"                                         );
+    AddSignal (2,    "SIGINT",       true ,   true , true , "interrupt"                                      );
+    AddSignal (3,    "SIGQUIT",      false,   true , true , "quit"                                           );
+    AddSignal (4,    "SIGILL",       false,   true , true , "illegal instruction"                            );
+    AddSignal (5,    "SIGTRAP",      true ,   true , true , "trace trap (not reset when caught)"             );
+    AddSignal (6,    "SIGABRT",      false,   true , true , "abort()/IOT trap",                      "SIGIOT");
+    AddSignal (7,    "SIGEMT",       false,   true , true , "terminate process with core dump"               );
+    AddSignal (8,    "SIGFPE",       false,   true , true , "floating point exception"                       );
+    AddSignal (9,    "SIGKILL",      false,   true , true , "kill"                                           );
+    AddSignal (10,   "SIGBUS",       false,   true , true , "bus error"                                      );
+    AddSignal (11,   "SIGSEGV",      false,   true , true , "segmentation violation"                         );
+    AddSignal (12,   "SIGSYS",       false,   true , true , "invalid system call"                            );
+    AddSignal (13,   "SIGPIPE",      false,   true , true , "write to pipe with reading end closed"          );
+    AddSignal (14,   "SIGALRM",      false,   false, false, "alarm"                                          );
+    AddSignal (15,   "SIGTERM",      false,   true , true , "termination requested"                          );
+    AddSignal (16,   "SIGUSR1",      false,   true , true , "user defined signal 1"                          );
+    AddSignal (17,   "SIGUSR2",      false,   true , true , "user defined signal 2"                          );
+    AddSignal (18,   "SIGCHLD",      false,   false, true , "child status has changed",              "SIGCLD");
+    AddSignal (19,   "SIGPWR",       false,   true , true , "power failure"                                  );
+    AddSignal (20,   "SIGWINCH",     false,   true , true , "window size changes"                            );
+    AddSignal (21,   "SIGURG",       false,   true , true , "urgent data on socket"                          );
+    AddSignal (22,   "SIGIO",        false,   true , true , "input/output ready/Pollable event",    "SIGPOLL");
+    AddSignal (23,   "SIGSTOP",      true ,   true , true , "process stop"                                   );
+    AddSignal (24,   "SIGTSTP",      false,   true , true , "tty stop"                                       );
+    AddSignal (25,   "SIGCONT",      false,   true , true , "process continue"                               );
+    AddSignal (26,   "SIGTTIN",      false,   true , true , "background tty read"                            );
+    AddSignal (27,   "SIGTTOU",      false,   true , true , "background tty write"                           );
+    AddSignal (28,   "SIGVTALRM",    false,   true , true , "virtual time alarm"                             );
+    AddSignal (29,   "SIGPROF",      false,   false, false, "profiling time alarm"                           );
+    AddSignal (30,   "SIGXCPU",      false,   true , true , "CPU resource exceeded"                          );
+    AddSignal (31,   "SIGXFSZ",      false,   true , true , "file size limit exceeded"                       );
+    AddSignal (32,   "SIG32",        false,   false, false, "threading library internal signal 1"            );
+    AddSignal (33,   "SIG33",        false,   false, false, "threading library internal signal 2"            );
+    AddSignal (34,   "SIGRTMIN",     false,   false, false, "real time signal 0"                             );
+    AddSignal (35,   "SIGRTMIN+1",   false,   false, false, "real time signal 1"                             );
+    AddSignal (36,   "SIGRTMIN+2",   false,   false, false, "real time signal 2"                             );
+    AddSignal (37,   "SIGRTMIN+3",   false,   false, false, "real time signal 3"                             );
+    AddSignal (38,   "SIGRTMIN+4",   false,   false, false, "real time signal 4"                             );
+    AddSignal (39,   "SIGRTMIN+5",   false,   false, false, "real time signal 5"                             );
+    AddSignal (40,   "SIGRTMIN+6",   false,   false, false, "real time signal 6"                             );
+    AddSignal (41,   "SIGRTMIN+7",   false,   false, false, "real time signal 7"                             );
+    AddSignal (42,   "SIGRTMIN+8",   false,   false, false, "real time signal 8"                             );
+    AddSignal (43,   "SIGRTMIN+9",   false,   false, false, "real time signal 9"                             );
+    AddSignal (44,   "SIGRTMIN+10",  false,   false, false, "real time signal 10"                            );
+    AddSignal (45,   "SIGRTMIN+11",  false,   false, false, "real time signal 11"                            );
+    AddSignal (46,   "SIGRTMIN+12",  false,   false, false, "real time signal 12"                            );
+    AddSignal (47,   "SIGRTMIN+13",  false,   false, false, "real time signal 13"                            );
+    AddSignal (48,   "SIGRTMIN+14",  false,   false, false, "real time signal 14"                            );
+    AddSignal (49,   "SIGRTMIN+15",  false,   false, false, "real time signal 15"                            );
+    AddSignal (50,   "SIGRTMAX-14",  false,   false, false, "real time signal 16"                            ); // switching to SIGRTMAX-xxx to match "kill -l" output
+    AddSignal (51,   "SIGRTMAX-13",  false,   false, false, "real time signal 17"                            );
+    AddSignal (52,   "SIGRTMAX-12",  false,   false, false, "real time signal 18"                            );
+    AddSignal (53,   "SIGRTMAX-11",  false,   false, false, "real time signal 19"                            );
+    AddSignal (54,   "SIGRTMAX-10",  false,   false, false, "real time signal 20"                            );
+    AddSignal (55,   "SIGRTMAX-9",   false,   false, false, "real time signal 21"                            );
+    AddSignal (56,   "SIGRTMAX-8",   false,   false, false, "real time signal 22"                            );
+    AddSignal (57,   "SIGRTMAX-7",   false,   false, false, "real time signal 23"                            );
+    AddSignal (58,   "SIGRTMAX-6",   false,   false, false, "real time signal 24"                            );
+    AddSignal (59,   "SIGRTMAX-5",   false,   false, false, "real time signal 25"                            );
+    AddSignal (60,   "SIGRTMAX-4",   false,   false, false, "real time signal 26"                            );
+    AddSignal (61,   "SIGRTMAX-3",   false,   false, false, "real time signal 27"                            );
+    AddSignal (62,   "SIGRTMAX-2",   false,   false, false, "real time signal 28"                            );
+    AddSignal (63,   "SIGRTMAX-1",   false,   false, false, "real time signal 29"                            );
+    AddSignal (64,   "SIGRTMAX",     false,   false, false, "real time signal 30"                            );
 }
diff --git a/source/Plugins/Process/Utility/NetBSDSignals.cpp b/source/Plugins/Process/Utility/NetBSDSignals.cpp
new file mode 100644
index 0000000000000..5dce51616c4e3
--- /dev/null
+++ b/source/Plugins/Process/Utility/NetBSDSignals.cpp
@@ -0,0 +1,34 @@
+//===-- NetBSDSignals.cpp --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "NetBSDSignals.h"
+
+using namespace lldb_private;
+
+NetBSDSignals::NetBSDSignals()
+    : UnixSignals()
+{
+    Reset();
+}
+
+void
+NetBSDSignals::Reset()
+{
+    UnixSignals::Reset();
+    //        SIGNO  NAME          SUPPRESS STOP   NOTIFY DESCRIPTION
+    //        ====== ============  ======== ====== ====== ===================================================
+    AddSignal (32,   "SIGPWR",     false,   true , true , "power fail/restart (not reset when caught)");
+#ifdef SIGRTMIN /* SIGRTMAX */
+    /* Kernel only; not exposed to userland yet */
+#endif
+}
diff --git a/source/Plugins/Process/Utility/NetBSDSignals.h b/source/Plugins/Process/Utility/NetBSDSignals.h
new file mode 100644
index 0000000000000..441402b056dbd
--- /dev/null
+++ b/source/Plugins/Process/Utility/NetBSDSignals.h
@@ -0,0 +1,31 @@
+//===-- NetBSDSignals.h ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_NetBSDSignals_H_
+#define liblldb_NetBSDSignals_H_
+
+// Project includes
+#include "lldb/Target/UnixSignals.h"
+
+namespace lldb_private {
+
+/// NetBSD specific set of Unix signals.
+class NetBSDSignals : public UnixSignals
+{
+public:
+    NetBSDSignals();
+
+private:
+    void
+    Reset() override;
+};
+
+} // namespace lldb_private
+
+#endif // liblldb_NetBSDSignals_H_
diff --git a/source/Plugins/Process/Utility/RegisterContextDarwin_arm.cpp b/source/Plugins/Process/Utility/RegisterContextDarwin_arm.cpp
index 4138a6aaa2aab..452fb47ebc8a7 100644
--- a/source/Plugins/Process/Utility/RegisterContextDarwin_arm.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextDarwin_arm.cpp
@@ -34,8 +34,8 @@
 #endif
 
 // Project includes
-#include "ARM_GCC_Registers.h"
 #include "ARM_DWARF_Registers.h"
+#include "Utility/ARM_ehframe_Registers.h"
 
 #include "llvm/ADT/STLExtras.h"
 
@@ -172,89 +172,69 @@ enum
 };
 
 
-RegisterContextDarwin_arm::RegisterContextDarwin_arm(Thread &thread, uint32_t concrete_frame_idx) :
-    RegisterContext(thread, concrete_frame_idx),
-    gpr(),
-    fpu(),
-    exc()
-{
-    uint32_t i;
-    for (i=0; i<kNumErrors; i++)
-    {
-        gpr_errs[i] = -1;
-        fpu_errs[i] = -1;
-        exc_errs[i] = -1;
-    }
-}
-
-RegisterContextDarwin_arm::~RegisterContextDarwin_arm()
-{
-}
-
-
 #define GPR_OFFSET(idx) ((idx) * 4)
 #define FPU_OFFSET(idx) ((idx) * 4 + sizeof (RegisterContextDarwin_arm::GPR))
 #define EXC_OFFSET(idx) ((idx) * 4 + sizeof (RegisterContextDarwin_arm::GPR) + sizeof (RegisterContextDarwin_arm::FPU))
 #define DBG_OFFSET(reg) ((LLVM_EXTENSION offsetof (RegisterContextDarwin_arm::DBG, reg) + sizeof (RegisterContextDarwin_arm::GPR) + sizeof (RegisterContextDarwin_arm::FPU) + sizeof (RegisterContextDarwin_arm::EXC)))
 
-#define DEFINE_DBG(reg, i)  #reg, NULL, sizeof(((RegisterContextDarwin_arm::DBG *)NULL)->reg[i]), DBG_OFFSET(reg[i]), eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, dbg_##reg##i }, NULL, NULL
+#define DEFINE_DBG(reg, i)  #reg, NULL, sizeof(((RegisterContextDarwin_arm::DBG *)NULL)->reg[i]), DBG_OFFSET(reg[i]), eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL
 #define REG_CONTEXT_SIZE (sizeof (RegisterContextDarwin_arm::GPR) + sizeof (RegisterContextDarwin_arm::FPU) + sizeof (RegisterContextDarwin_arm::EXC))
 
 static RegisterInfo g_register_infos[] = {
 // General purpose registers
-//  NAME        ALT     SZ  OFFSET              ENCODING        FORMAT          COMPILER                DWARF               GENERIC                     GDB                     LLDB NATIVE   VALUE REGS    INVALIDATE REGS
+//  NAME        ALT     SZ  OFFSET              ENCODING        FORMAT          EH_FRAME                DWARF               GENERIC                     PROCESS PLUGIN          LLDB NATIVE   VALUE REGS    INVALIDATE REGS
 //  ======      ======= ==  =============       =============   ============    ===============         ===============     =========================   =====================   ============= ==========    ===============
-{   "r0",       NULL,   4,  GPR_OFFSET(0),      eEncodingUint,  eFormatHex,     { gcc_r0,               dwarf_r0,           LLDB_INVALID_REGNUM,        gdb_arm_r0,             gpr_r0      },      NULL,              NULL},
-{   "r1",       NULL,   4,  GPR_OFFSET(1),      eEncodingUint,  eFormatHex,     { gcc_r1,               dwarf_r1,           LLDB_INVALID_REGNUM,        gdb_arm_r1,             gpr_r1      },      NULL,              NULL},
-{   "r2",       NULL,   4,  GPR_OFFSET(2),      eEncodingUint,  eFormatHex,     { gcc_r2,               dwarf_r2,           LLDB_INVALID_REGNUM,        gdb_arm_r2,             gpr_r2      },      NULL,              NULL},
-{   "r3",       NULL,   4,  GPR_OFFSET(3),      eEncodingUint,  eFormatHex,     { gcc_r3,               dwarf_r3,           LLDB_INVALID_REGNUM,        gdb_arm_r3,             gpr_r3      },      NULL,              NULL},
-{   "r4",       NULL,   4,  GPR_OFFSET(4),      eEncodingUint,  eFormatHex,     { gcc_r4,               dwarf_r4,           LLDB_INVALID_REGNUM,        gdb_arm_r4,             gpr_r4      },      NULL,              NULL},
-{   "r5",       NULL,   4,  GPR_OFFSET(5),      eEncodingUint,  eFormatHex,     { gcc_r5,               dwarf_r5,           LLDB_INVALID_REGNUM,        gdb_arm_r5,             gpr_r5      },      NULL,              NULL},
-{   "r6",       NULL,   4,  GPR_OFFSET(6),      eEncodingUint,  eFormatHex,     { gcc_r6,               dwarf_r6,           LLDB_INVALID_REGNUM,        gdb_arm_r6,             gpr_r6      },      NULL,              NULL},
-{   "r7",       NULL,   4,  GPR_OFFSET(7),      eEncodingUint,  eFormatHex,     { gcc_r7,               dwarf_r7,           LLDB_REGNUM_GENERIC_FP,     gdb_arm_r7,             gpr_r7      },      NULL,              NULL},
-{   "r8",       NULL,   4,  GPR_OFFSET(8),      eEncodingUint,  eFormatHex,     { gcc_r8,               dwarf_r8,           LLDB_INVALID_REGNUM,        gdb_arm_r8,             gpr_r8      },      NULL,              NULL},
-{   "r9",       NULL,   4,  GPR_OFFSET(9),      eEncodingUint,  eFormatHex,     { gcc_r9,               dwarf_r9,           LLDB_INVALID_REGNUM,        gdb_arm_r9,             gpr_r9      },      NULL,              NULL},
-{   "r10",      NULL,   4,  GPR_OFFSET(10),     eEncodingUint,  eFormatHex,     { gcc_r10,              dwarf_r10,          LLDB_INVALID_REGNUM,        gdb_arm_r10,            gpr_r10     },      NULL,              NULL},
-{   "r11",      NULL,   4,  GPR_OFFSET(11),     eEncodingUint,  eFormatHex,     { gcc_r11,              dwarf_r11,          LLDB_INVALID_REGNUM,        gdb_arm_r11,            gpr_r11     },      NULL,              NULL},
-{   "r12",      NULL,   4,  GPR_OFFSET(12),     eEncodingUint,  eFormatHex,     { gcc_r12,              dwarf_r12,          LLDB_INVALID_REGNUM,        gdb_arm_r12,            gpr_r12     },      NULL,              NULL},
-{   "sp",       "r13",  4,  GPR_OFFSET(13),     eEncodingUint,  eFormatHex,     { gcc_sp,               dwarf_sp,           LLDB_REGNUM_GENERIC_SP,     gdb_arm_sp,             gpr_sp      },      NULL,              NULL},
-{   "lr",       "r14",  4,  GPR_OFFSET(14),     eEncodingUint,  eFormatHex,     { gcc_lr,               dwarf_lr,           LLDB_REGNUM_GENERIC_RA,     gdb_arm_lr,             gpr_lr      },      NULL,              NULL},
-{   "pc",       "r15",  4,  GPR_OFFSET(15),     eEncodingUint,  eFormatHex,     { gcc_pc,               dwarf_pc,           LLDB_REGNUM_GENERIC_PC,     gdb_arm_pc,             gpr_pc      },      NULL,              NULL},
-{   "cpsr",     "psr",  4,  GPR_OFFSET(16),     eEncodingUint,  eFormatHex,     { gcc_cpsr,             dwarf_cpsr,         LLDB_REGNUM_GENERIC_FLAGS,  gdb_arm_cpsr,           gpr_cpsr    },      NULL,              NULL},
-
-{   "s0",       NULL,   4,  FPU_OFFSET(0),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s0,           LLDB_INVALID_REGNUM,        gdb_arm_s0,             fpu_s0      },      NULL,              NULL},
-{   "s1",       NULL,   4,  FPU_OFFSET(1),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s1,           LLDB_INVALID_REGNUM,        gdb_arm_s1,             fpu_s1      },      NULL,              NULL},
-{   "s2",       NULL,   4,  FPU_OFFSET(2),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s2,           LLDB_INVALID_REGNUM,        gdb_arm_s2,             fpu_s2      },      NULL,              NULL},
-{   "s3",       NULL,   4,  FPU_OFFSET(3),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s3,           LLDB_INVALID_REGNUM,        gdb_arm_s3,             fpu_s3      },      NULL,              NULL},
-{   "s4",       NULL,   4,  FPU_OFFSET(4),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s4,           LLDB_INVALID_REGNUM,        gdb_arm_s4,             fpu_s4      },      NULL,              NULL},
-{   "s5",       NULL,   4,  FPU_OFFSET(5),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s5,           LLDB_INVALID_REGNUM,        gdb_arm_s5,             fpu_s5      },      NULL,              NULL},
-{   "s6",       NULL,   4,  FPU_OFFSET(6),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s6,           LLDB_INVALID_REGNUM,        gdb_arm_s6,             fpu_s6      },      NULL,              NULL},
-{   "s7",       NULL,   4,  FPU_OFFSET(7),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s7,           LLDB_INVALID_REGNUM,        gdb_arm_s7,             fpu_s7      },      NULL,              NULL},
-{   "s8",       NULL,   4,  FPU_OFFSET(8),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s8,           LLDB_INVALID_REGNUM,        gdb_arm_s8,             fpu_s8      },      NULL,              NULL},
-{   "s9",       NULL,   4,  FPU_OFFSET(9),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s9,           LLDB_INVALID_REGNUM,        gdb_arm_s9,             fpu_s9      },      NULL,              NULL},
-{   "s10",      NULL,   4,  FPU_OFFSET(10),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s10,          LLDB_INVALID_REGNUM,        gdb_arm_s10,            fpu_s10     },      NULL,              NULL},
-{   "s11",      NULL,   4,  FPU_OFFSET(11),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s11,          LLDB_INVALID_REGNUM,        gdb_arm_s11,            fpu_s11     },      NULL,              NULL},
-{   "s12",      NULL,   4,  FPU_OFFSET(12),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s12,          LLDB_INVALID_REGNUM,        gdb_arm_s12,            fpu_s12     },      NULL,              NULL},
-{   "s13",      NULL,   4,  FPU_OFFSET(13),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s13,          LLDB_INVALID_REGNUM,        gdb_arm_s13,            fpu_s13     },      NULL,              NULL},
-{   "s14",      NULL,   4,  FPU_OFFSET(14),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s14,          LLDB_INVALID_REGNUM,        gdb_arm_s14,            fpu_s14     },      NULL,              NULL},
-{   "s15",      NULL,   4,  FPU_OFFSET(15),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s15,          LLDB_INVALID_REGNUM,        gdb_arm_s15,            fpu_s15     },      NULL,              NULL},
-{   "s16",      NULL,   4,  FPU_OFFSET(16),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s16,          LLDB_INVALID_REGNUM,        gdb_arm_s16,            fpu_s16     },      NULL,              NULL},
-{   "s17",      NULL,   4,  FPU_OFFSET(17),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s17,          LLDB_INVALID_REGNUM,        gdb_arm_s17,            fpu_s17     },      NULL,              NULL},
-{   "s18",      NULL,   4,  FPU_OFFSET(18),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s18,          LLDB_INVALID_REGNUM,        gdb_arm_s18,            fpu_s18     },      NULL,              NULL},
-{   "s19",      NULL,   4,  FPU_OFFSET(19),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s19,          LLDB_INVALID_REGNUM,        gdb_arm_s19,            fpu_s19     },      NULL,              NULL},
-{   "s20",      NULL,   4,  FPU_OFFSET(20),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s20,          LLDB_INVALID_REGNUM,        gdb_arm_s20,            fpu_s20     },      NULL,              NULL},
-{   "s21",      NULL,   4,  FPU_OFFSET(21),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s21,          LLDB_INVALID_REGNUM,        gdb_arm_s21,            fpu_s21     },      NULL,              NULL},
-{   "s22",      NULL,   4,  FPU_OFFSET(22),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s22,          LLDB_INVALID_REGNUM,        gdb_arm_s22,            fpu_s22     },      NULL,              NULL},
-{   "s23",      NULL,   4,  FPU_OFFSET(23),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s23,          LLDB_INVALID_REGNUM,        gdb_arm_s23,            fpu_s23     },      NULL,              NULL},
-{   "s24",      NULL,   4,  FPU_OFFSET(24),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s24,          LLDB_INVALID_REGNUM,        gdb_arm_s24,            fpu_s24     },      NULL,              NULL},
-{   "s25",      NULL,   4,  FPU_OFFSET(25),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s25,          LLDB_INVALID_REGNUM,        gdb_arm_s25,            fpu_s25     },      NULL,              NULL},
-{   "s26",      NULL,   4,  FPU_OFFSET(26),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s26,          LLDB_INVALID_REGNUM,        gdb_arm_s26,            fpu_s26     },      NULL,              NULL},
-{   "s27",      NULL,   4,  FPU_OFFSET(27),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s27,          LLDB_INVALID_REGNUM,        gdb_arm_s27,            fpu_s27     },      NULL,              NULL},
-{   "s28",      NULL,   4,  FPU_OFFSET(28),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s28,          LLDB_INVALID_REGNUM,        gdb_arm_s28,            fpu_s28     },      NULL,              NULL},
-{   "s29",      NULL,   4,  FPU_OFFSET(29),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s29,          LLDB_INVALID_REGNUM,        gdb_arm_s29,            fpu_s29     },      NULL,              NULL},
-{   "s30",      NULL,   4,  FPU_OFFSET(30),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s30,          LLDB_INVALID_REGNUM,        gdb_arm_s30,            fpu_s30     },      NULL,              NULL},
-{   "s31",      NULL,   4,  FPU_OFFSET(31),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s31,          LLDB_INVALID_REGNUM,        gdb_arm_s31,            fpu_s31     },      NULL,              NULL},
-{   "fpscr",    NULL,   4,  FPU_OFFSET(32),     eEncodingUint,  eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM,        gdb_arm_fpscr,          fpu_fpscr   },      NULL,              NULL},
+{   "r0",       NULL,   4,  GPR_OFFSET(0),      eEncodingUint,  eFormatHex,     { ehframe_r0,               dwarf_r0,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    gpr_r0      },      NULL,              NULL},
+{   "r1",       NULL,   4,  GPR_OFFSET(1),      eEncodingUint,  eFormatHex,     { ehframe_r1,               dwarf_r1,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    gpr_r1      },      NULL,              NULL},
+{   "r2",       NULL,   4,  GPR_OFFSET(2),      eEncodingUint,  eFormatHex,     { ehframe_r2,               dwarf_r2,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    gpr_r2      },      NULL,              NULL},
+{   "r3",       NULL,   4,  GPR_OFFSET(3),      eEncodingUint,  eFormatHex,     { ehframe_r3,               dwarf_r3,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    gpr_r3      },      NULL,              NULL},
+{   "r4",       NULL,   4,  GPR_OFFSET(4),      eEncodingUint,  eFormatHex,     { ehframe_r4,               dwarf_r4,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    gpr_r4      },      NULL,              NULL},
+{   "r5",       NULL,   4,  GPR_OFFSET(5),      eEncodingUint,  eFormatHex,     { ehframe_r5,               dwarf_r5,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    gpr_r5      },      NULL,              NULL},
+{   "r6",       NULL,   4,  GPR_OFFSET(6),      eEncodingUint,  eFormatHex,     { ehframe_r6,               dwarf_r6,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    gpr_r6      },      NULL,              NULL},
+{   "r7",       NULL,   4,  GPR_OFFSET(7),      eEncodingUint,  eFormatHex,     { ehframe_r7,               dwarf_r7,           LLDB_REGNUM_GENERIC_FP,     LLDB_INVALID_REGNUM,    gpr_r7      },      NULL,              NULL},
+{   "r8",       NULL,   4,  GPR_OFFSET(8),      eEncodingUint,  eFormatHex,     { ehframe_r8,               dwarf_r8,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    gpr_r8      },      NULL,              NULL},
+{   "r9",       NULL,   4,  GPR_OFFSET(9),      eEncodingUint,  eFormatHex,     { ehframe_r9,               dwarf_r9,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    gpr_r9      },      NULL,              NULL},
+{   "r10",      NULL,   4,  GPR_OFFSET(10),     eEncodingUint,  eFormatHex,     { ehframe_r10,              dwarf_r10,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    gpr_r10     },      NULL,              NULL},
+{   "r11",      NULL,   4,  GPR_OFFSET(11),     eEncodingUint,  eFormatHex,     { ehframe_r11,              dwarf_r11,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    gpr_r11     },      NULL,              NULL},
+{   "r12",      NULL,   4,  GPR_OFFSET(12),     eEncodingUint,  eFormatHex,     { ehframe_r12,              dwarf_r12,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    gpr_r12     },      NULL,              NULL},
+{   "sp",       "r13",  4,  GPR_OFFSET(13),     eEncodingUint,  eFormatHex,     { ehframe_sp,               dwarf_sp,           LLDB_REGNUM_GENERIC_SP,     LLDB_INVALID_REGNUM,    gpr_sp      },      NULL,              NULL},
+{   "lr",       "r14",  4,  GPR_OFFSET(14),     eEncodingUint,  eFormatHex,     { ehframe_lr,               dwarf_lr,           LLDB_REGNUM_GENERIC_RA,     LLDB_INVALID_REGNUM,    gpr_lr      },      NULL,              NULL},
+{   "pc",       "r15",  4,  GPR_OFFSET(15),     eEncodingUint,  eFormatHex,     { ehframe_pc,               dwarf_pc,           LLDB_REGNUM_GENERIC_PC,     LLDB_INVALID_REGNUM,    gpr_pc      },      NULL,              NULL},
+{   "cpsr",     "psr",  4,  GPR_OFFSET(16),     eEncodingUint,  eFormatHex,     { ehframe_cpsr,             dwarf_cpsr,         LLDB_REGNUM_GENERIC_FLAGS,  LLDB_INVALID_REGNUM,    gpr_cpsr    },      NULL,              NULL},
+
+{   "s0",       NULL,   4,  FPU_OFFSET(0),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s0,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s0      },      NULL,              NULL},
+{   "s1",       NULL,   4,  FPU_OFFSET(1),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s1,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s1      },      NULL,              NULL},
+{   "s2",       NULL,   4,  FPU_OFFSET(2),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s2,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s2      },      NULL,              NULL},
+{   "s3",       NULL,   4,  FPU_OFFSET(3),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s3,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s3      },      NULL,              NULL},
+{   "s4",       NULL,   4,  FPU_OFFSET(4),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s4,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s4      },      NULL,              NULL},
+{   "s5",       NULL,   4,  FPU_OFFSET(5),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s5,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s5      },      NULL,              NULL},
+{   "s6",       NULL,   4,  FPU_OFFSET(6),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s6,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s6      },      NULL,              NULL},
+{   "s7",       NULL,   4,  FPU_OFFSET(7),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s7,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s7      },      NULL,              NULL},
+{   "s8",       NULL,   4,  FPU_OFFSET(8),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s8,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s8      },      NULL,              NULL},
+{   "s9",       NULL,   4,  FPU_OFFSET(9),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s9,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s9      },      NULL,              NULL},
+{   "s10",      NULL,   4,  FPU_OFFSET(10),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s10,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s10     },      NULL,              NULL},
+{   "s11",      NULL,   4,  FPU_OFFSET(11),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s11,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s11     },      NULL,              NULL},
+{   "s12",      NULL,   4,  FPU_OFFSET(12),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s12,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s12     },      NULL,              NULL},
+{   "s13",      NULL,   4,  FPU_OFFSET(13),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s13,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s13     },      NULL,              NULL},
+{   "s14",      NULL,   4,  FPU_OFFSET(14),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s14,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s14     },      NULL,              NULL},
+{   "s15",      NULL,   4,  FPU_OFFSET(15),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s15,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s15     },      NULL,              NULL},
+{   "s16",      NULL,   4,  FPU_OFFSET(16),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s16,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s16     },      NULL,              NULL},
+{   "s17",      NULL,   4,  FPU_OFFSET(17),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s17,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s17     },      NULL,              NULL},
+{   "s18",      NULL,   4,  FPU_OFFSET(18),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s18,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s18     },      NULL,              NULL},
+{   "s19",      NULL,   4,  FPU_OFFSET(19),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s19,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s19     },      NULL,              NULL},
+{   "s20",      NULL,   4,  FPU_OFFSET(20),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s20,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s20     },      NULL,              NULL},
+{   "s21",      NULL,   4,  FPU_OFFSET(21),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s21,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s21     },      NULL,              NULL},
+{   "s22",      NULL,   4,  FPU_OFFSET(22),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s22,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s22     },      NULL,              NULL},
+{   "s23",      NULL,   4,  FPU_OFFSET(23),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s23,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s23     },      NULL,              NULL},
+{   "s24",      NULL,   4,  FPU_OFFSET(24),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s24,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s24     },      NULL,              NULL},
+{   "s25",      NULL,   4,  FPU_OFFSET(25),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s25,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s25     },      NULL,              NULL},
+{   "s26",      NULL,   4,  FPU_OFFSET(26),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s26,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s26     },      NULL,              NULL},
+{   "s27",      NULL,   4,  FPU_OFFSET(27),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s27,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s27     },      NULL,              NULL},
+{   "s28",      NULL,   4,  FPU_OFFSET(28),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s28,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s28     },      NULL,              NULL},
+{   "s29",      NULL,   4,  FPU_OFFSET(29),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s29,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s29     },      NULL,              NULL},
+{   "s30",      NULL,   4,  FPU_OFFSET(30),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s30,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s30     },      NULL,              NULL},
+{   "s31",      NULL,   4,  FPU_OFFSET(31),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s31,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_s31     },      NULL,              NULL},
+{   "fpscr",    NULL,   4,  FPU_OFFSET(32),     eEncodingUint,  eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    fpu_fpscr   },      NULL,              NULL},
 
 {   "exception",NULL,   4,  EXC_OFFSET(0),      eEncodingUint,  eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    exc_exception },    NULL,              NULL},
 {   "fsr",      NULL,   4,  EXC_OFFSET(1),      eEncodingUint,  eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    exc_fsr       },    NULL,              NULL},
@@ -403,6 +383,26 @@ g_exc_regnums[] =
 
 static size_t k_num_register_infos = llvm::array_lengthof(g_register_infos);
 
+RegisterContextDarwin_arm::RegisterContextDarwin_arm(Thread &thread, uint32_t concrete_frame_idx) :
+    RegisterContext(thread, concrete_frame_idx),
+    gpr(),
+    fpu(),
+    exc()
+{
+    uint32_t i;
+    for (i=0; i<kNumErrors; i++)
+    {
+        gpr_errs[i] = -1;
+        fpu_errs[i] = -1;
+        exc_errs[i] = -1;
+    }
+}
+
+RegisterContextDarwin_arm::~RegisterContextDarwin_arm()
+{
+}
+
+
 void
 RegisterContextDarwin_arm::InvalidateAllRegisters ()
 {
@@ -940,27 +940,27 @@ RegisterContextDarwin_arm::ConvertRegisterKindToRegisterNumber (lldb::RegisterKi
             break;
         }
     }
-    else if (kind == eRegisterKindGCC)
+    else if (kind == eRegisterKindEHFrame)
     {
         switch (reg)
         {
-        case gcc_r0:    return gpr_r0;
-        case gcc_r1:    return gpr_r1;
-        case gcc_r2:    return gpr_r2;
-        case gcc_r3:    return gpr_r3;
-        case gcc_r4:    return gpr_r4;
-        case gcc_r5:    return gpr_r5;
-        case gcc_r6:    return gpr_r6;
-        case gcc_r7:    return gpr_r7;
-        case gcc_r8:    return gpr_r8;
-        case gcc_r9:    return gpr_r9;
-        case gcc_r10:   return gpr_r10;
-        case gcc_r11:   return gpr_r11;
-        case gcc_r12:   return gpr_r12;
-        case gcc_sp:    return gpr_sp;
-        case gcc_lr:    return gpr_lr;
-        case gcc_pc:    return gpr_pc;
-        case gcc_cpsr:  return gpr_cpsr;
+        case ehframe_r0:    return gpr_r0;
+        case ehframe_r1:    return gpr_r1;
+        case ehframe_r2:    return gpr_r2;
+        case ehframe_r3:    return gpr_r3;
+        case ehframe_r4:    return gpr_r4;
+        case ehframe_r5:    return gpr_r5;
+        case ehframe_r6:    return gpr_r6;
+        case ehframe_r7:    return gpr_r7;
+        case ehframe_r8:    return gpr_r8;
+        case ehframe_r9:    return gpr_r9;
+        case ehframe_r10:   return gpr_r10;
+        case ehframe_r11:   return gpr_r11;
+        case ehframe_r12:   return gpr_r12;
+        case ehframe_sp:    return gpr_sp;
+        case ehframe_lr:    return gpr_lr;
+        case ehframe_pc:    return gpr_pc;
+        case ehframe_cpsr:  return gpr_cpsr;
         }
     }
     else if (kind == eRegisterKindLLDB)
diff --git a/source/Plugins/Process/Utility/RegisterContextDarwin_arm.h b/source/Plugins/Process/Utility/RegisterContextDarwin_arm.h
index 23134efd43e67..f4d82259f9df9 100644
--- a/source/Plugins/Process/Utility/RegisterContextDarwin_arm.h
+++ b/source/Plugins/Process/Utility/RegisterContextDarwin_arm.h
@@ -51,61 +51,59 @@
 class RegisterContextDarwin_arm : public lldb_private::RegisterContext
 {
 public:
-
     RegisterContextDarwin_arm(lldb_private::Thread &thread, uint32_t concrete_frame_idx);
 
-    virtual
-    ~RegisterContextDarwin_arm();
+    ~RegisterContextDarwin_arm() override;
 
-    virtual void
-    InvalidateAllRegisters ();
+    void
+    InvalidateAllRegisters() override;
 
-    virtual size_t
-    GetRegisterCount ();
+    size_t
+    GetRegisterCount() override;
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex (size_t reg);
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoAtIndex(size_t reg) override;
 
-    virtual size_t
-    GetRegisterSetCount ();
+    size_t
+    GetRegisterSetCount() override;
 
-    virtual const lldb_private::RegisterSet *
-    GetRegisterSet (size_t set);
+    const lldb_private::RegisterSet *
+    GetRegisterSet(size_t set) override;
 
-    virtual bool
-    ReadRegister (const lldb_private::RegisterInfo *reg_info, 
-                  lldb_private::RegisterValue &reg_value);
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &reg_value) override;
     
-    virtual bool
-    WriteRegister (const lldb_private::RegisterInfo *reg_info,
-                   const lldb_private::RegisterValue &reg_value);
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &reg_value) override;
     
-    virtual bool
-    ReadAllRegisterValues (lldb::DataBufferSP &data_sp);
+    bool
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
 
-    virtual bool
-    WriteAllRegisterValues (const lldb::DataBufferSP &data_sp);
+    bool
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
-    virtual uint32_t
-    ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num);
+    uint32_t
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
 
-    virtual uint32_t
-    NumSupportedHardwareBreakpoints ();
+    uint32_t
+    NumSupportedHardwareBreakpoints() override;
 
-    virtual uint32_t
-    SetHardwareBreakpoint (lldb::addr_t addr, size_t size);
+    uint32_t
+    SetHardwareBreakpoint(lldb::addr_t addr, size_t size) override;
 
-    virtual bool
-    ClearHardwareBreakpoint (uint32_t hw_idx);
+    bool
+    ClearHardwareBreakpoint(uint32_t hw_idx) override;
 
-    virtual uint32_t
-    NumSupportedHardwareWatchpoints ();
+    uint32_t
+    NumSupportedHardwareWatchpoints() override;
 
-    virtual uint32_t
-    SetHardwareWatchpoint (lldb::addr_t addr, size_t size, bool read, bool write);
+    uint32_t
+    SetHardwareWatchpoint(lldb::addr_t addr, size_t size, bool read, bool write) override;
 
-    virtual bool
-    ClearHardwareWatchpoint (uint32_t hw_index);
+    bool
+    ClearHardwareWatchpoint(uint32_t hw_index) override;
 
     struct GPR
     {
@@ -113,7 +111,6 @@ public:
         uint32_t    cpsr;   // CPSR
     };
 
-
     struct QReg
     {
         uint8_t bytes[16];
@@ -163,7 +160,6 @@ public:
     LogDBGRegisters (lldb_private::Log *log, const DBG& dbg);
 
 protected:
-
     enum
     {
         GPRRegSet = 1, // ARM_THREAD_STATE
@@ -330,4 +326,4 @@ protected:
     GetRegisterInfos ();
 };
 
-#endif  // liblldb_RegisterContextDarwin_arm_h_
+#endif // liblldb_RegisterContextDarwin_arm_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextDarwin_arm64.cpp b/source/Plugins/Process/Utility/RegisterContextDarwin_arm64.cpp
index e08a87369e4d1..7de042dd11a93 100644
--- a/source/Plugins/Process/Utility/RegisterContextDarwin_arm64.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextDarwin_arm64.cpp
@@ -36,31 +36,11 @@
 #endif
 
 // Project includes
-#include "ARM64_GCC_Registers.h"
 #include "ARM64_DWARF_Registers.h"
 
 using namespace lldb;
 using namespace lldb_private;
 
-RegisterContextDarwin_arm64::RegisterContextDarwin_arm64(Thread &thread, uint32_t concrete_frame_idx) :
-    RegisterContext(thread, concrete_frame_idx),
-    gpr(),
-    fpu(),
-    exc()
-{
-    uint32_t i;
-    for (i=0; i<kNumErrors; i++)
-    {
-        gpr_errs[i] = -1;
-        fpu_errs[i] = -1;
-        exc_errs[i] = -1;
-    }
-}
-
-RegisterContextDarwin_arm64::~RegisterContextDarwin_arm64()
-{
-}
-
 
 #define GPR_OFFSET(idx) ((idx) * 8)
 #define GPR_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextDarwin_arm64::GPR, reg))
@@ -71,7 +51,7 @@ RegisterContextDarwin_arm64::~RegisterContextDarwin_arm64()
 #define EXC_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextDarwin_arm64::EXC, reg) + sizeof (RegisterContextDarwin_arm64::GPR) + sizeof (RegisterContextDarwin_arm64::FPU))
 #define DBG_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextDarwin_arm64::DBG, reg) + sizeof (RegisterContextDarwin_arm64::GPR) + sizeof (RegisterContextDarwin_arm64::FPU) + sizeof (RegisterContextDarwin_arm64::EXC))
 
-#define DEFINE_DBG(reg, i)  #reg, NULL, sizeof(((RegisterContextDarwin_arm64::DBG *)NULL)->reg[i]), DBG_OFFSET_NAME(reg[i]), eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, dbg_##reg##i }, NULL, NULL
+#define DEFINE_DBG(reg, i)  #reg, NULL, sizeof(((RegisterContextDarwin_arm64::DBG *)NULL)->reg[i]), DBG_OFFSET_NAME(reg[i]), eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL
 #define REG_CONTEXT_SIZE (sizeof (RegisterContextDarwin_arm64::GPR) + sizeof (RegisterContextDarwin_arm64::FPU) + sizeof (RegisterContextDarwin_arm64::EXC))
 
 //-----------------------------------------------------------------------------
@@ -173,6 +153,26 @@ g_exc_regnums[] =
 
 static size_t k_num_register_infos = llvm::array_lengthof(g_register_infos_arm64);
 
+RegisterContextDarwin_arm64::RegisterContextDarwin_arm64(Thread &thread, uint32_t concrete_frame_idx) :
+    RegisterContext(thread, concrete_frame_idx),
+    gpr(),
+    fpu(),
+    exc()
+{
+    uint32_t i;
+    for (i=0; i<kNumErrors; i++)
+    {
+        gpr_errs[i] = -1;
+        fpu_errs[i] = -1;
+        exc_errs[i] = -1;
+    }
+}
+
+RegisterContextDarwin_arm64::~RegisterContextDarwin_arm64()
+{
+}
+
+
 void
 RegisterContextDarwin_arm64::InvalidateAllRegisters ()
 {
@@ -488,7 +488,7 @@ RegisterContextDarwin_arm64::ReadRegister (const RegisterInfo *reg_info, Registe
     case fpu_v29:
     case fpu_v30:
     case fpu_v31:
-        value.SetBytes(fpu.v[reg].bytes, reg_info->byte_size, lldb::endian::InlHostByteOrder());
+        value.SetBytes(fpu.v[reg].bytes, reg_info->byte_size, endian::InlHostByteOrder());
         break;
 
     case fpu_fpsr:
@@ -770,44 +770,44 @@ RegisterContextDarwin_arm64::ConvertRegisterKindToRegisterNumber (RegisterKind k
             break;
         }
     }
-    else if (kind == eRegisterKindGCC)
+    else if (kind == eRegisterKindEHFrame)
     {
         switch (reg)
         {
-        case arm64_gcc::x0:  return gpr_x0;
-        case arm64_gcc::x1:  return gpr_x1;
-        case arm64_gcc::x2:  return gpr_x2;
-        case arm64_gcc::x3:  return gpr_x3;
-        case arm64_gcc::x4:  return gpr_x4;
-        case arm64_gcc::x5:  return gpr_x5;
-        case arm64_gcc::x6:  return gpr_x6;
-        case arm64_gcc::x7:  return gpr_x7;
-        case arm64_gcc::x8:  return gpr_x8;
-        case arm64_gcc::x9:  return gpr_x9;
-        case arm64_gcc::x10: return gpr_x10;
-        case arm64_gcc::x11: return gpr_x11;
-        case arm64_gcc::x12: return gpr_x12;
-        case arm64_gcc::x13: return gpr_x13;
-        case arm64_gcc::x14: return gpr_x14;
-        case arm64_gcc::x15: return gpr_x15;
-        case arm64_gcc::x16: return gpr_x16;
-        case arm64_gcc::x17: return gpr_x17;
-        case arm64_gcc::x18: return gpr_x18;
-        case arm64_gcc::x19: return gpr_x19;
-        case arm64_gcc::x20: return gpr_x20;
-        case arm64_gcc::x21: return gpr_x21;
-        case arm64_gcc::x22: return gpr_x22;
-        case arm64_gcc::x23: return gpr_x23;
-        case arm64_gcc::x24: return gpr_x24;
-        case arm64_gcc::x25: return gpr_x25;
-        case arm64_gcc::x26: return gpr_x26;
-        case arm64_gcc::x27: return gpr_x27;
-        case arm64_gcc::x28: return gpr_x28;
-        case arm64_gcc::fp:   return gpr_fp;
-        case arm64_gcc::sp:   return gpr_sp;
-        case arm64_gcc::lr:   return gpr_lr;
-        case arm64_gcc::pc:   return gpr_pc;
-        case arm64_gcc::cpsr: return gpr_cpsr;
+        case arm64_ehframe::x0:  return gpr_x0;
+        case arm64_ehframe::x1:  return gpr_x1;
+        case arm64_ehframe::x2:  return gpr_x2;
+        case arm64_ehframe::x3:  return gpr_x3;
+        case arm64_ehframe::x4:  return gpr_x4;
+        case arm64_ehframe::x5:  return gpr_x5;
+        case arm64_ehframe::x6:  return gpr_x6;
+        case arm64_ehframe::x7:  return gpr_x7;
+        case arm64_ehframe::x8:  return gpr_x8;
+        case arm64_ehframe::x9:  return gpr_x9;
+        case arm64_ehframe::x10: return gpr_x10;
+        case arm64_ehframe::x11: return gpr_x11;
+        case arm64_ehframe::x12: return gpr_x12;
+        case arm64_ehframe::x13: return gpr_x13;
+        case arm64_ehframe::x14: return gpr_x14;
+        case arm64_ehframe::x15: return gpr_x15;
+        case arm64_ehframe::x16: return gpr_x16;
+        case arm64_ehframe::x17: return gpr_x17;
+        case arm64_ehframe::x18: return gpr_x18;
+        case arm64_ehframe::x19: return gpr_x19;
+        case arm64_ehframe::x20: return gpr_x20;
+        case arm64_ehframe::x21: return gpr_x21;
+        case arm64_ehframe::x22: return gpr_x22;
+        case arm64_ehframe::x23: return gpr_x23;
+        case arm64_ehframe::x24: return gpr_x24;
+        case arm64_ehframe::x25: return gpr_x25;
+        case arm64_ehframe::x26: return gpr_x26;
+        case arm64_ehframe::x27: return gpr_x27;
+        case arm64_ehframe::x28: return gpr_x28;
+        case arm64_ehframe::fp:   return gpr_fp;
+        case arm64_ehframe::sp:   return gpr_sp;
+        case arm64_ehframe::lr:   return gpr_lr;
+        case arm64_ehframe::pc:   return gpr_pc;
+        case arm64_ehframe::cpsr: return gpr_cpsr;
         }
     }
     else if (kind == eRegisterKindLLDB)
diff --git a/source/Plugins/Process/Utility/RegisterContextDarwin_arm64.h b/source/Plugins/Process/Utility/RegisterContextDarwin_arm64.h
index aeac15e9b09a0..b228c42ade531 100644
--- a/source/Plugins/Process/Utility/RegisterContextDarwin_arm64.h
+++ b/source/Plugins/Process/Utility/RegisterContextDarwin_arm64.h
@@ -32,52 +32,50 @@
 class RegisterContextDarwin_arm64 : public lldb_private::RegisterContext
 {
 public:
-
     RegisterContextDarwin_arm64(lldb_private::Thread &thread, uint32_t concrete_frame_idx);
 
-    virtual
-    ~RegisterContextDarwin_arm64();
+    ~RegisterContextDarwin_arm64() override;
 
-    virtual void
-    InvalidateAllRegisters ();
+    void
+    InvalidateAllRegisters() override;
 
-    virtual size_t
-    GetRegisterCount ();
+    size_t
+    GetRegisterCount() override;
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex (size_t reg);
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoAtIndex(size_t reg) override;
 
-    virtual size_t
-    GetRegisterSetCount ();
+    size_t
+    GetRegisterSetCount() override;
 
-    virtual const lldb_private::RegisterSet *
-    GetRegisterSet (size_t set);
+    const lldb_private::RegisterSet *
+    GetRegisterSet(size_t set) override;
 
-    virtual bool
-    ReadRegister (const lldb_private::RegisterInfo *reg_info, 
-                  lldb_private::RegisterValue &reg_value);
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &reg_value) override;
     
-    virtual bool
-    WriteRegister (const lldb_private::RegisterInfo *reg_info,
-                   const lldb_private::RegisterValue &reg_value);
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &reg_value) override;
     
-    virtual bool
-    ReadAllRegisterValues (lldb::DataBufferSP &data_sp);
+    bool
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
 
-    virtual bool
-    WriteAllRegisterValues (const lldb::DataBufferSP &data_sp);
+    bool
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
-    virtual uint32_t
-    ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num);
+    uint32_t
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
 
-    virtual uint32_t
-    NumSupportedHardwareWatchpoints ();
+    uint32_t
+    NumSupportedHardwareWatchpoints() override;
 
-    virtual uint32_t
-    SetHardwareWatchpoint (lldb::addr_t addr, size_t size, bool read, bool write);
+    uint32_t
+    SetHardwareWatchpoint(lldb::addr_t addr, size_t size, bool read, bool write) override;
 
-    virtual bool
-    ClearHardwareWatchpoint (uint32_t hw_index);
+    bool
+    ClearHardwareWatchpoint(uint32_t hw_index) override;
 
     // mirrors <mach/arm/thread_status.h> arm_thread_state64_t
     struct GPR
@@ -90,7 +88,6 @@ public:
         uint32_t    cpsr;   // cpsr
     };
 
-
     struct VReg
     {
         uint8_t bytes[16];
@@ -126,7 +123,6 @@ public:
     LogDBGRegisters (lldb_private::Log *log, const DBG& dbg);
 
 protected:
-
     enum
     {
         GPRRegSet = 6,  // ARM_THREAD_STATE64
@@ -293,4 +289,4 @@ protected:
     GetRegisterInfos ();
 };
 
-#endif  // liblldb_RegisterContextDarwin_arm64_h_
+#endif // liblldb_RegisterContextDarwin_arm64_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextDarwin_i386.cpp b/source/Plugins/Process/Utility/RegisterContextDarwin_i386.cpp
index 08144bf7ec262..1b01c28b5d964 100644
--- a/source/Plugins/Process/Utility/RegisterContextDarwin_i386.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextDarwin_i386.cpp
@@ -98,16 +98,16 @@ enum
 
 enum
 {
-    gcc_eax = 0,
-    gcc_ecx,
-    gcc_edx,
-    gcc_ebx,
-    gcc_ebp,
-    gcc_esp,
-    gcc_esi,
-    gcc_edi,
-    gcc_eip,
-    gcc_eflags
+    ehframe_eax = 0,
+    ehframe_ecx,
+    ehframe_edx,
+    ehframe_ebx,
+    ehframe_ebp,
+    ehframe_esp,
+    ehframe_esi,
+    ehframe_edi,
+    ehframe_eip,
+    ehframe_eflags
 };
 
 enum
@@ -140,79 +140,6 @@ enum
     dwarf_xmm7
 };
 
-enum
-{
-    gdb_eax        =  0,
-    gdb_ecx        =  1,
-    gdb_edx        =  2,
-    gdb_ebx        =  3,
-    gdb_esp        =  4,
-    gdb_ebp        =  5,
-    gdb_esi        =  6,
-    gdb_edi        =  7,
-    gdb_eip        =  8,
-    gdb_eflags     =  9,
-    gdb_cs         = 10,
-    gdb_ss         = 11,
-    gdb_ds         = 12,
-    gdb_es         = 13,
-    gdb_fs         = 14,
-    gdb_gs         = 15,
-    gdb_stmm0      = 16,
-    gdb_stmm1      = 17,
-    gdb_stmm2      = 18,
-    gdb_stmm3      = 19,
-    gdb_stmm4      = 20,
-    gdb_stmm5      = 21,
-    gdb_stmm6      = 22,
-    gdb_stmm7      = 23,
-    gdb_fctrl      = 24,    gdb_fcw     = gdb_fctrl,
-    gdb_fstat      = 25,    gdb_fsw     = gdb_fstat,
-    gdb_ftag       = 26,    gdb_ftw     = gdb_ftag,
-    gdb_fiseg      = 27,    gdb_fpu_cs  = gdb_fiseg,
-    gdb_fioff      = 28,    gdb_ip      = gdb_fioff,
-    gdb_foseg      = 29,    gdb_fpu_ds  = gdb_foseg,
-    gdb_fooff      = 30,    gdb_dp      = gdb_fooff,
-    gdb_fop        = 31,
-    gdb_xmm0       = 32,
-    gdb_xmm1       = 33,
-    gdb_xmm2       = 34,
-    gdb_xmm3       = 35,
-    gdb_xmm4       = 36,
-    gdb_xmm5       = 37,
-    gdb_xmm6       = 38,
-    gdb_xmm7       = 39,
-    gdb_mxcsr      = 40,
-    gdb_mm0        = 41,
-    gdb_mm1        = 42,
-    gdb_mm2        = 43,
-    gdb_mm3        = 44,
-    gdb_mm4        = 45,
-    gdb_mm5        = 46,
-    gdb_mm6        = 47,
-    gdb_mm7        = 48
-};
-
-RegisterContextDarwin_i386::RegisterContextDarwin_i386 (Thread &thread, uint32_t concrete_frame_idx) :
-    RegisterContext(thread, concrete_frame_idx),
-    gpr(),
-    fpu(),
-    exc()
-{
-    uint32_t i;
-    for (i=0; i<kNumErrors; i++)
-    {
-        gpr_errs[i] = -1;
-        fpu_errs[i] = -1;
-        exc_errs[i] = -1;
-    }
-}
-
-RegisterContextDarwin_i386::~RegisterContextDarwin_i386()
-{
-}
-
-
 
 #define GPR_OFFSET(reg) (LLVM_EXTENSION offsetof (RegisterContextDarwin_i386::GPR, reg))
 #define FPU_OFFSET(reg) (LLVM_EXTENSION offsetof (RegisterContextDarwin_i386::FPU, reg) + sizeof (RegisterContextDarwin_i386::GPR))
@@ -224,42 +151,42 @@ RegisterContextDarwin_i386::~RegisterContextDarwin_i386()
 // sizes and offsets.
 #define DEFINE_GPR(reg, alt)    #reg, alt, sizeof(((RegisterContextDarwin_i386::GPR *)NULL)->reg), GPR_OFFSET(reg), eEncodingUint, eFormatHex
 #define DEFINE_FPU_UINT(reg)    #reg, NULL, sizeof(((RegisterContextDarwin_i386::FPU *)NULL)->reg), FPU_OFFSET(reg), eEncodingUint, eFormatHex
-#define DEFINE_FPU_VECT(reg, i) #reg#i, NULL, sizeof(((RegisterContextDarwin_i386::FPU *)NULL)->reg[i].bytes), FPU_OFFSET(reg[i]), eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_##reg##i, LLDB_INVALID_REGNUM, gdb_##reg##i, fpu_##reg##i }, NULL, NULL
+#define DEFINE_FPU_VECT(reg, i) #reg#i, NULL, sizeof(((RegisterContextDarwin_i386::FPU *)NULL)->reg[i].bytes), FPU_OFFSET(reg[i]), eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_##reg##i, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, fpu_##reg##i }, NULL, NULL
 
 #define DEFINE_EXC(reg)         #reg, NULL, sizeof(((RegisterContextDarwin_i386::EXC *)NULL)->reg), EXC_OFFSET(reg), eEncodingUint, eFormatHex
 #define REG_CONTEXT_SIZE (sizeof (RegisterContextDarwin_i386::GPR) + sizeof (RegisterContextDarwin_i386::FPU) + sizeof (RegisterContextDarwin_i386::EXC))
 
 static RegisterInfo g_register_infos[] =
 {
-//  Macro auto defines most stuff   GCC                     DWARF                 GENERIC                    GDB                  LLDB              VALUE REGS    INVALIDATE REGS
+//  Macro auto defines most stuff   eh_frame                DWARF                 GENERIC                    PROCESS PLUGIN       LLDB              VALUE REGS    INVALIDATE REGS
 //  =============================== ======================= ===================   =========================  ==================   ================= ==========    ===============
-    { DEFINE_GPR(eax    , NULL)     , { gcc_eax             , dwarf_eax          , LLDB_INVALID_REGNUM       , gdb_eax            , gpr_eax      },      NULL,              NULL},
-    { DEFINE_GPR(ebx    , NULL)     , { gcc_ebx             , dwarf_ebx          , LLDB_INVALID_REGNUM       , gdb_ebx            , gpr_ebx      },      NULL,              NULL},
-    { DEFINE_GPR(ecx    , NULL)     , { gcc_ecx             , dwarf_ecx          , LLDB_INVALID_REGNUM       , gdb_ecx            , gpr_ecx      },      NULL,              NULL},
-    { DEFINE_GPR(edx    , NULL)     , { gcc_edx             , dwarf_edx          , LLDB_INVALID_REGNUM       , gdb_edx            , gpr_edx      },      NULL,              NULL},
-    { DEFINE_GPR(edi    , NULL)     , { gcc_edi             , dwarf_edi          , LLDB_INVALID_REGNUM       , gdb_edi            , gpr_edi      },      NULL,              NULL},
-    { DEFINE_GPR(esi    , NULL)     , { gcc_esi             , dwarf_esi          , LLDB_INVALID_REGNUM       , gdb_esi            , gpr_esi      },      NULL,              NULL},
-    { DEFINE_GPR(ebp    , "fp")     , { gcc_ebp             , dwarf_ebp          , LLDB_REGNUM_GENERIC_FP    , gdb_ebp            , gpr_ebp      },      NULL,              NULL},
-    { DEFINE_GPR(esp    , "sp")     , { gcc_esp             , dwarf_esp          , LLDB_REGNUM_GENERIC_SP    , gdb_esp            , gpr_esp      },      NULL,              NULL},
-    { DEFINE_GPR(ss     , NULL)     , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_ss             , gpr_ss       },      NULL,              NULL},
-    { DEFINE_GPR(eflags , "flags")  , { gcc_eflags          , dwarf_eflags       , LLDB_REGNUM_GENERIC_FLAGS , gdb_eflags         , gpr_eflags   },      NULL,              NULL},
-    { DEFINE_GPR(eip    , "pc")     , { gcc_eip             , dwarf_eip          , LLDB_REGNUM_GENERIC_PC    , gdb_eip            , gpr_eip      },      NULL,              NULL},
-    { DEFINE_GPR(cs     , NULL)     , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_cs             , gpr_cs       },      NULL,              NULL},
-    { DEFINE_GPR(ds     , NULL)     , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_ds             , gpr_ds       },      NULL,              NULL},
-    { DEFINE_GPR(es     , NULL)     , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_es             , gpr_es       },      NULL,              NULL},
-    { DEFINE_GPR(fs     , NULL)     , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_fs             , gpr_fs       },      NULL,              NULL},
-    { DEFINE_GPR(gs     , NULL)     , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_gs             , gpr_gs       },      NULL,              NULL},
-
-    { DEFINE_FPU_UINT(fcw)          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_fcw            , fpu_fcw      },      NULL,              NULL},
-    { DEFINE_FPU_UINT(fsw)          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_fsw            , fpu_fsw      },      NULL,              NULL},
-    { DEFINE_FPU_UINT(ftw)          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_ftw            , fpu_ftw      },      NULL,              NULL},
-    { DEFINE_FPU_UINT(fop)          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_fop            , fpu_fop      },      NULL,              NULL},
-    { DEFINE_FPU_UINT(ip)           , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_ip             , fpu_ip       },      NULL,              NULL},
-    { DEFINE_FPU_UINT(cs)           , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_cs             , fpu_cs       },      NULL,              NULL},
-    { DEFINE_FPU_UINT(dp)           , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_dp             , fpu_dp       },      NULL,              NULL},
-    { DEFINE_FPU_UINT(ds)           , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_ds             , fpu_ds       },      NULL,              NULL},
-    { DEFINE_FPU_UINT(mxcsr)        , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , gdb_mxcsr          , fpu_mxcsr    },      NULL,              NULL},
-    { DEFINE_FPU_UINT(mxcsrmask)    , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, fpu_mxcsrmask},      NULL,              NULL},
+    { DEFINE_GPR(eax    , NULL)     , { ehframe_eax        , dwarf_eax          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, gpr_eax      },      NULL,              NULL},
+    { DEFINE_GPR(ebx    , NULL)     , { ehframe_ebx        , dwarf_ebx          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, gpr_ebx      },      NULL,              NULL},
+    { DEFINE_GPR(ecx    , NULL)     , { ehframe_ecx        , dwarf_ecx          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, gpr_ecx      },      NULL,              NULL},
+    { DEFINE_GPR(edx    , NULL)     , { ehframe_edx        , dwarf_edx          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, gpr_edx      },      NULL,              NULL},
+    { DEFINE_GPR(edi    , NULL)     , { ehframe_edi        , dwarf_edi          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, gpr_edi      },      NULL,              NULL},
+    { DEFINE_GPR(esi    , NULL)     , { ehframe_esi        , dwarf_esi          , LLDB_INVALID_REGNUM       , LLDB_INVALID_REGNUM, gpr_esi      },      NULL,              NULL},
+    { DEFINE_GPR(ebp    , "fp")     , { ehframe_ebp        , dwarf_ebp          , LLDB_REGNUM_GENERIC_FP    , LLDB_INVALID_REGNUM, gpr_ebp      },      NULL,              NULL},
+    { DEFINE_GPR(esp    , "sp")     , { ehframe_esp        , dwarf_esp          , LLDB_REGNUM_GENERIC_SP    , LLDB_INVALID_REGNUM, gpr_esp      },      NULL,              NULL},
+    { DEFINE_GPR(ss     , NULL)     , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_ss       },      NULL,              NULL},
+    { DEFINE_GPR(eflags , "flags")  , { ehframe_eflags     , dwarf_eflags       , LLDB_REGNUM_GENERIC_FLAGS , LLDB_INVALID_REGNUM, gpr_eflags   },      NULL,              NULL},
+    { DEFINE_GPR(eip    , "pc")     , { ehframe_eip        , dwarf_eip          , LLDB_REGNUM_GENERIC_PC    , LLDB_INVALID_REGNUM, gpr_eip      },      NULL,              NULL},
+    { DEFINE_GPR(cs     , NULL)     , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_cs       },      NULL,              NULL},
+    { DEFINE_GPR(ds     , NULL)     , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_ds       },      NULL,              NULL},
+    { DEFINE_GPR(es     , NULL)     , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_es       },      NULL,              NULL},
+    { DEFINE_GPR(fs     , NULL)     , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_fs       },      NULL,              NULL},
+    { DEFINE_GPR(gs     , NULL)     , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_gs       },      NULL,              NULL},
+
+    { DEFINE_FPU_UINT(fcw)          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_fcw      },      NULL,              NULL},
+    { DEFINE_FPU_UINT(fsw)          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_fsw      },      NULL,              NULL},
+    { DEFINE_FPU_UINT(ftw)          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_ftw      },      NULL,              NULL},
+    { DEFINE_FPU_UINT(fop)          , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_fop      },      NULL,              NULL},
+    { DEFINE_FPU_UINT(ip)           , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_ip       },      NULL,              NULL},
+    { DEFINE_FPU_UINT(cs)           , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_cs       },      NULL,              NULL},
+    { DEFINE_FPU_UINT(dp)           , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_dp       },      NULL,              NULL},
+    { DEFINE_FPU_UINT(ds)           , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_ds       },      NULL,              NULL},
+    { DEFINE_FPU_UINT(mxcsr)        , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_mxcsr    },      NULL,              NULL},
+    { DEFINE_FPU_UINT(mxcsrmask)    , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_mxcsrmask},      NULL,              NULL},
     { DEFINE_FPU_VECT(stmm,0)   },
     { DEFINE_FPU_VECT(stmm,1)   },
     { DEFINE_FPU_VECT(stmm,2)   },
@@ -277,13 +204,33 @@ static RegisterInfo g_register_infos[] =
     { DEFINE_FPU_VECT(xmm,6)    },
     { DEFINE_FPU_VECT(xmm,7)    },
 
-    { DEFINE_EXC(trapno)            , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM   , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM, exc_trapno },       NULL,              NULL},
-    { DEFINE_EXC(err)               , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM   , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM, exc_err },          NULL,              NULL},
-    { DEFINE_EXC(faultvaddr)        , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM   , LLDB_INVALID_REGNUM     , LLDB_INVALID_REGNUM, exc_faultvaddr },   NULL,              NULL}
+    { DEFINE_EXC(trapno)            , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM   , LLDB_INVALID_REGNUM   , LLDB_INVALID_REGNUM, exc_trapno },       NULL,              NULL},
+    { DEFINE_EXC(err)               , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM   , LLDB_INVALID_REGNUM   , LLDB_INVALID_REGNUM, exc_err },          NULL,              NULL},
+    { DEFINE_EXC(faultvaddr)        , { LLDB_INVALID_REGNUM , LLDB_INVALID_REGNUM   , LLDB_INVALID_REGNUM   , LLDB_INVALID_REGNUM, exc_faultvaddr },   NULL,              NULL}
 };
 
 static size_t k_num_register_infos = llvm::array_lengthof(g_register_infos);
 
+RegisterContextDarwin_i386::RegisterContextDarwin_i386 (Thread &thread, uint32_t concrete_frame_idx) :
+    RegisterContext(thread, concrete_frame_idx),
+    gpr(),
+    fpu(),
+    exc()
+{
+    uint32_t i;
+    for (i=0; i<kNumErrors; i++)
+    {
+        gpr_errs[i] = -1;
+        fpu_errs[i] = -1;
+        exc_errs[i] = -1;
+    }
+}
+
+RegisterContextDarwin_i386::~RegisterContextDarwin_i386()
+{
+}
+
+
 void
 RegisterContextDarwin_i386::InvalidateAllRegisters ()
 {
@@ -859,7 +806,7 @@ RegisterContextDarwin_i386::ConvertRegisterKindToRegisterNumber (lldb::RegisterK
             break;
         }
     }
-    else if (kind == eRegisterKindGCC || kind == eRegisterKindDWARF)
+    else if (kind == eRegisterKindEHFrame || kind == eRegisterKindDWARF)
     {
         switch (reg)
         {
@@ -893,55 +840,6 @@ RegisterContextDarwin_i386::ConvertRegisterKindToRegisterNumber (lldb::RegisterK
             break;
         }
     }
-    else if (kind == eRegisterKindGDB)
-    {
-        switch (reg)
-        {
-        case gdb_eax     : return gpr_eax;
-        case gdb_ebx     : return gpr_ebx;
-        case gdb_ecx     : return gpr_ecx;
-        case gdb_edx     : return gpr_edx;
-        case gdb_esi     : return gpr_esi;
-        case gdb_edi     : return gpr_edi;
-        case gdb_ebp     : return gpr_ebp;
-        case gdb_esp     : return gpr_esp;
-        case gdb_eip     : return gpr_eip;
-        case gdb_eflags  : return gpr_eflags;
-        case gdb_cs      : return gpr_cs;
-        case gdb_ss      : return gpr_ss;
-        case gdb_ds      : return gpr_ds;
-        case gdb_es      : return gpr_es;
-        case gdb_fs      : return gpr_fs;
-        case gdb_gs      : return gpr_gs;
-        case gdb_stmm0   : return fpu_stmm0;
-        case gdb_stmm1   : return fpu_stmm1;
-        case gdb_stmm2   : return fpu_stmm2;
-        case gdb_stmm3   : return fpu_stmm3;
-        case gdb_stmm4   : return fpu_stmm4;
-        case gdb_stmm5   : return fpu_stmm5;
-        case gdb_stmm6   : return fpu_stmm6;
-        case gdb_stmm7   : return fpu_stmm7;
-        case gdb_fctrl   : return fpu_fctrl;
-        case gdb_fstat   : return fpu_fstat;
-        case gdb_ftag    : return fpu_ftag;
-        case gdb_fiseg   : return fpu_fiseg;
-        case gdb_fioff   : return fpu_fioff;
-        case gdb_foseg   : return fpu_foseg;
-        case gdb_fooff   : return fpu_fooff;
-        case gdb_fop     : return fpu_fop;
-        case gdb_xmm0    : return fpu_xmm0;
-        case gdb_xmm1    : return fpu_xmm1;
-        case gdb_xmm2    : return fpu_xmm2;
-        case gdb_xmm3    : return fpu_xmm3;
-        case gdb_xmm4    : return fpu_xmm4;
-        case gdb_xmm5    : return fpu_xmm5;
-        case gdb_xmm6    : return fpu_xmm6;
-        case gdb_xmm7    : return fpu_xmm7;
-        case gdb_mxcsr   : return fpu_mxcsr;
-        default:
-            break;
-        }
-    }
     else if (kind == eRegisterKindLLDB)
     {
         return reg;
diff --git a/source/Plugins/Process/Utility/RegisterContextDarwin_i386.h b/source/Plugins/Process/Utility/RegisterContextDarwin_i386.h
index 1d03feb9f3dd1..9568b0332b4cf 100644
--- a/source/Plugins/Process/Utility/RegisterContextDarwin_i386.h
+++ b/source/Plugins/Process/Utility/RegisterContextDarwin_i386.h
@@ -20,45 +20,45 @@
 class RegisterContextDarwin_i386 : public lldb_private::RegisterContext
 {
 public:
-
     RegisterContextDarwin_i386(lldb_private::Thread &thread,
-                             uint32_t concrete_frame_idx);
+                               uint32_t concrete_frame_idx);
 
-    virtual
-    ~RegisterContextDarwin_i386();
+    ~RegisterContextDarwin_i386() override;
 
-    virtual void
-    InvalidateAllRegisters ();
+    void
+    InvalidateAllRegisters() override;
 
-    virtual size_t
-    GetRegisterCount ();
+    size_t
+    GetRegisterCount() override;
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex (size_t reg);
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoAtIndex(size_t reg) override;
 
-    virtual size_t
-    GetRegisterSetCount ();
+    size_t
+    GetRegisterSetCount() override;
 
-    virtual const lldb_private::RegisterSet *
-    GetRegisterSet (size_t set);
+    const lldb_private::RegisterSet *
+    GetRegisterSet(size_t set) override;
 
-    virtual bool
-    ReadRegister (const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value);
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &value) override;
 
-    virtual bool
-    WriteRegister (const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value);
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &value) override;
     
-    virtual bool
-    ReadAllRegisterValues (lldb::DataBufferSP &data_sp);
+    bool
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
 
-    virtual bool
-    WriteAllRegisterValues (const lldb::DataBufferSP &data_sp);
+    bool
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
-    virtual uint32_t
-    ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num);
+    uint32_t
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
 
-    virtual bool
-    HardwareSingleStep (bool enable);
+    bool
+    HardwareSingleStep(bool enable) override;
 
     struct GPR
     {
@@ -121,7 +121,6 @@ public:
     };
 
 protected:
-
     enum
     {
         GPRRegSet = 1,
@@ -266,4 +265,4 @@ protected:
     GetRegisterInfos ();
 };
 
-#endif  // liblldb_RegisterContextDarwin_i386_h_
+#endif // liblldb_RegisterContextDarwin_i386_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextDarwin_x86_64.cpp b/source/Plugins/Process/Utility/RegisterContextDarwin_x86_64.cpp
index 54124d187d545..aee6e1228d2a9 100644
--- a/source/Plugins/Process/Utility/RegisterContextDarwin_x86_64.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextDarwin_x86_64.cpp
@@ -111,132 +111,52 @@ enum
     fpu_fooff = fpu_dp
 };
 
-enum gcc_dwarf_regnums
-{
-    gcc_dwarf_gpr_rax = 0,
-    gcc_dwarf_gpr_rdx,
-    gcc_dwarf_gpr_rcx,
-    gcc_dwarf_gpr_rbx,
-    gcc_dwarf_gpr_rsi,
-    gcc_dwarf_gpr_rdi,
-    gcc_dwarf_gpr_rbp,
-    gcc_dwarf_gpr_rsp,
-    gcc_dwarf_gpr_r8,
-    gcc_dwarf_gpr_r9,
-    gcc_dwarf_gpr_r10,
-    gcc_dwarf_gpr_r11,
-    gcc_dwarf_gpr_r12,
-    gcc_dwarf_gpr_r13,
-    gcc_dwarf_gpr_r14,
-    gcc_dwarf_gpr_r15,
-    gcc_dwarf_gpr_rip,
-    gcc_dwarf_fpu_xmm0,
-    gcc_dwarf_fpu_xmm1,
-    gcc_dwarf_fpu_xmm2,
-    gcc_dwarf_fpu_xmm3,
-    gcc_dwarf_fpu_xmm4,
-    gcc_dwarf_fpu_xmm5,
-    gcc_dwarf_fpu_xmm6,
-    gcc_dwarf_fpu_xmm7,
-    gcc_dwarf_fpu_xmm8,
-    gcc_dwarf_fpu_xmm9,
-    gcc_dwarf_fpu_xmm10,
-    gcc_dwarf_fpu_xmm11,
-    gcc_dwarf_fpu_xmm12,
-    gcc_dwarf_fpu_xmm13,
-    gcc_dwarf_fpu_xmm14,
-    gcc_dwarf_fpu_xmm15,
-    gcc_dwarf_fpu_stmm0,
-    gcc_dwarf_fpu_stmm1,
-    gcc_dwarf_fpu_stmm2,
-    gcc_dwarf_fpu_stmm3,
-    gcc_dwarf_fpu_stmm4,
-    gcc_dwarf_fpu_stmm5,
-    gcc_dwarf_fpu_stmm6,
-    gcc_dwarf_fpu_stmm7
-
-};
+enum ehframe_dwarf_regnums
+{
+    ehframe_dwarf_gpr_rax = 0,
+    ehframe_dwarf_gpr_rdx,
+    ehframe_dwarf_gpr_rcx,
+    ehframe_dwarf_gpr_rbx,
+    ehframe_dwarf_gpr_rsi,
+    ehframe_dwarf_gpr_rdi,
+    ehframe_dwarf_gpr_rbp,
+    ehframe_dwarf_gpr_rsp,
+    ehframe_dwarf_gpr_r8,
+    ehframe_dwarf_gpr_r9,
+    ehframe_dwarf_gpr_r10,
+    ehframe_dwarf_gpr_r11,
+    ehframe_dwarf_gpr_r12,
+    ehframe_dwarf_gpr_r13,
+    ehframe_dwarf_gpr_r14,
+    ehframe_dwarf_gpr_r15,
+    ehframe_dwarf_gpr_rip,
+    ehframe_dwarf_fpu_xmm0,
+    ehframe_dwarf_fpu_xmm1,
+    ehframe_dwarf_fpu_xmm2,
+    ehframe_dwarf_fpu_xmm3,
+    ehframe_dwarf_fpu_xmm4,
+    ehframe_dwarf_fpu_xmm5,
+    ehframe_dwarf_fpu_xmm6,
+    ehframe_dwarf_fpu_xmm7,
+    ehframe_dwarf_fpu_xmm8,
+    ehframe_dwarf_fpu_xmm9,
+    ehframe_dwarf_fpu_xmm10,
+    ehframe_dwarf_fpu_xmm11,
+    ehframe_dwarf_fpu_xmm12,
+    ehframe_dwarf_fpu_xmm13,
+    ehframe_dwarf_fpu_xmm14,
+    ehframe_dwarf_fpu_xmm15,
+    ehframe_dwarf_fpu_stmm0,
+    ehframe_dwarf_fpu_stmm1,
+    ehframe_dwarf_fpu_stmm2,
+    ehframe_dwarf_fpu_stmm3,
+    ehframe_dwarf_fpu_stmm4,
+    ehframe_dwarf_fpu_stmm5,
+    ehframe_dwarf_fpu_stmm6,
+    ehframe_dwarf_fpu_stmm7
 
-enum gdb_regnums
-{
-    gdb_gpr_rax     =   0,
-    gdb_gpr_rbx     =   1,
-    gdb_gpr_rcx     =   2,
-    gdb_gpr_rdx     =   3,
-    gdb_gpr_rsi     =   4,
-    gdb_gpr_rdi     =   5,
-    gdb_gpr_rbp     =   6,
-    gdb_gpr_rsp     =   7,
-    gdb_gpr_r8      =   8,
-    gdb_gpr_r9      =   9,
-    gdb_gpr_r10     =  10,
-    gdb_gpr_r11     =  11,
-    gdb_gpr_r12     =  12,
-    gdb_gpr_r13     =  13,
-    gdb_gpr_r14     =  14,
-    gdb_gpr_r15     =  15,
-    gdb_gpr_rip     =  16,
-    gdb_gpr_rflags  =  17,
-    gdb_gpr_cs      =  18,
-    gdb_gpr_ss      =  19,
-    gdb_gpr_ds      =  20,
-    gdb_gpr_es      =  21,
-    gdb_gpr_fs      =  22,
-    gdb_gpr_gs      =  23,
-    gdb_fpu_stmm0   =  24,
-    gdb_fpu_stmm1   =  25,
-    gdb_fpu_stmm2   =  26,
-    gdb_fpu_stmm3   =  27,
-    gdb_fpu_stmm4   =  28,
-    gdb_fpu_stmm5   =  29,
-    gdb_fpu_stmm6   =  30,
-    gdb_fpu_stmm7   =  31,
-    gdb_fpu_fctrl   =  32,  gdb_fpu_fcw = gdb_fpu_fctrl,
-    gdb_fpu_fstat   =  33,  gdb_fpu_fsw = gdb_fpu_fstat,
-    gdb_fpu_ftag    =  34,  gdb_fpu_ftw = gdb_fpu_ftag,
-    gdb_fpu_fiseg   =  35,  gdb_fpu_cs  = gdb_fpu_fiseg,
-    gdb_fpu_fioff   =  36,  gdb_fpu_ip  = gdb_fpu_fioff,
-    gdb_fpu_foseg   =  37,  gdb_fpu_ds  = gdb_fpu_foseg,
-    gdb_fpu_fooff   =  38,  gdb_fpu_dp  = gdb_fpu_fooff,
-    gdb_fpu_fop     =  39,
-    gdb_fpu_xmm0    =  40,
-    gdb_fpu_xmm1    =  41,
-    gdb_fpu_xmm2    =  42,
-    gdb_fpu_xmm3    =  43,
-    gdb_fpu_xmm4    =  44,
-    gdb_fpu_xmm5    =  45,
-    gdb_fpu_xmm6    =  46,
-    gdb_fpu_xmm7    =  47,
-    gdb_fpu_xmm8    =  48,
-    gdb_fpu_xmm9    =  49,
-    gdb_fpu_xmm10   =  50,
-    gdb_fpu_xmm11   =  51,
-    gdb_fpu_xmm12   =  52,
-    gdb_fpu_xmm13   =  53,
-    gdb_fpu_xmm14   =  54,
-    gdb_fpu_xmm15   =  55,
-    gdb_fpu_mxcsr   =  56
 };
 
-RegisterContextDarwin_x86_64::RegisterContextDarwin_x86_64 (Thread &thread, uint32_t concrete_frame_idx) :
-    RegisterContext (thread, concrete_frame_idx),
-    gpr(),
-    fpu(),
-    exc()
-{
-    uint32_t i;
-    for (i=0; i<kNumErrors; i++)
-    {
-        gpr_errs[i] = -1;
-        fpu_errs[i] = -1;
-        exc_errs[i] = -1;
-    }
-}
-
-RegisterContextDarwin_x86_64::~RegisterContextDarwin_x86_64()
-{
-}
-
 #define GPR_OFFSET(reg) (LLVM_EXTENSION offsetof (RegisterContextDarwin_x86_64::GPR, reg))
 #define FPU_OFFSET(reg) (LLVM_EXTENSION offsetof (RegisterContextDarwin_x86_64::FPU, reg) + sizeof (RegisterContextDarwin_x86_64::GPR))
 #define EXC_OFFSET(reg) (LLVM_EXTENSION offsetof (RegisterContextDarwin_x86_64::EXC, reg) + sizeof (RegisterContextDarwin_x86_64::GPR) + sizeof (RegisterContextDarwin_x86_64::FPU))
@@ -247,7 +167,7 @@ RegisterContextDarwin_x86_64::~RegisterContextDarwin_x86_64()
 // sizes and offsets.
 #define DEFINE_GPR(reg, alt)    #reg, alt, sizeof(((RegisterContextDarwin_x86_64::GPR *)NULL)->reg), GPR_OFFSET(reg), eEncodingUint, eFormatHex
 #define DEFINE_FPU_UINT(reg)    #reg, NULL, sizeof(((RegisterContextDarwin_x86_64::FPU *)NULL)->reg), FPU_OFFSET(reg), eEncodingUint, eFormatHex
-#define DEFINE_FPU_VECT(reg, i) #reg#i, NULL, sizeof(((RegisterContextDarwin_x86_64::FPU *)NULL)->reg[i].bytes), FPU_OFFSET(reg[i]), eEncodingVector, eFormatVectorOfUInt8, { gcc_dwarf_fpu_##reg##i, gcc_dwarf_fpu_##reg##i, LLDB_INVALID_REGNUM, gdb_fpu_##reg##i, fpu_##reg##i }, NULL, NULL
+#define DEFINE_FPU_VECT(reg, i) #reg#i, NULL, sizeof(((RegisterContextDarwin_x86_64::FPU *)NULL)->reg[i].bytes), FPU_OFFSET(reg[i]), eEncodingVector, eFormatVectorOfUInt8, { ehframe_dwarf_fpu_##reg##i, ehframe_dwarf_fpu_##reg##i, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, fpu_##reg##i }, NULL, NULL
 #define DEFINE_EXC(reg)         #reg, NULL, sizeof(((RegisterContextDarwin_x86_64::EXC *)NULL)->reg), EXC_OFFSET(reg), eEncodingUint, eFormatHex
 
 #define REG_CONTEXT_SIZE (sizeof (RegisterContextDarwin_x86_64::GPR) + sizeof (RegisterContextDarwin_x86_64::FPU) + sizeof (RegisterContextDarwin_x86_64::EXC))
@@ -255,39 +175,39 @@ RegisterContextDarwin_x86_64::~RegisterContextDarwin_x86_64()
 // General purpose registers for 64 bit
 static RegisterInfo g_register_infos[] =
 {
-//  Macro auto defines most stuff   GCC                    DWARF                GENERIC                    GDB                  LLDB                VALUE REGS    INVALIDATE REGS
-//  =============================== ====================== ===================  ========================== ==================== =================== ==========    ===============
-    { DEFINE_GPR (rax   , NULL)     , { gcc_dwarf_gpr_rax  , gcc_dwarf_gpr_rax  , LLDB_INVALID_REGNUM      , gdb_gpr_rax        , gpr_rax       },       NULL,              NULL},
-    { DEFINE_GPR (rbx   , NULL)     , { gcc_dwarf_gpr_rbx  , gcc_dwarf_gpr_rbx  , LLDB_INVALID_REGNUM      , gdb_gpr_rbx        , gpr_rbx       },       NULL,              NULL},
-    { DEFINE_GPR (rcx   , NULL)     , { gcc_dwarf_gpr_rcx  , gcc_dwarf_gpr_rcx  , LLDB_INVALID_REGNUM      , gdb_gpr_rcx        , gpr_rcx       },       NULL,              NULL},
-    { DEFINE_GPR (rdx   , NULL)     , { gcc_dwarf_gpr_rdx  , gcc_dwarf_gpr_rdx  , LLDB_INVALID_REGNUM      , gdb_gpr_rdx        , gpr_rdx       },       NULL,              NULL},
-    { DEFINE_GPR (rdi   , NULL)     , { gcc_dwarf_gpr_rdi  , gcc_dwarf_gpr_rdi  , LLDB_INVALID_REGNUM      , gdb_gpr_rdi        , gpr_rdi       },       NULL,              NULL},
-    { DEFINE_GPR (rsi   , NULL)     , { gcc_dwarf_gpr_rsi  , gcc_dwarf_gpr_rsi  , LLDB_INVALID_REGNUM      , gdb_gpr_rsi        , gpr_rsi       },       NULL,              NULL},
-    { DEFINE_GPR (rbp   , "fp")     , { gcc_dwarf_gpr_rbp  , gcc_dwarf_gpr_rbp  , LLDB_REGNUM_GENERIC_FP   , gdb_gpr_rbp        , gpr_rbp       },       NULL,              NULL},
-    { DEFINE_GPR (rsp   , "sp")     , { gcc_dwarf_gpr_rsp  , gcc_dwarf_gpr_rsp  , LLDB_REGNUM_GENERIC_SP   , gdb_gpr_rsp        , gpr_rsp       },       NULL,              NULL},
-    { DEFINE_GPR (r8    , NULL)     , { gcc_dwarf_gpr_r8   , gcc_dwarf_gpr_r8   , LLDB_INVALID_REGNUM      , gdb_gpr_r8         , gpr_r8        },       NULL,              NULL},
-    { DEFINE_GPR (r9    , NULL)     , { gcc_dwarf_gpr_r9   , gcc_dwarf_gpr_r9   , LLDB_INVALID_REGNUM      , gdb_gpr_r9         , gpr_r9        },       NULL,              NULL},
-    { DEFINE_GPR (r10   , NULL)     , { gcc_dwarf_gpr_r10  , gcc_dwarf_gpr_r10  , LLDB_INVALID_REGNUM      , gdb_gpr_r10        , gpr_r10       },       NULL,              NULL},
-    { DEFINE_GPR (r11   , NULL)     , { gcc_dwarf_gpr_r11  , gcc_dwarf_gpr_r11  , LLDB_INVALID_REGNUM      , gdb_gpr_r11        , gpr_r11       },       NULL,              NULL},
-    { DEFINE_GPR (r12   , NULL)     , { gcc_dwarf_gpr_r12  , gcc_dwarf_gpr_r12  , LLDB_INVALID_REGNUM      , gdb_gpr_r12        , gpr_r12       },       NULL,              NULL},
-    { DEFINE_GPR (r13   , NULL)     , { gcc_dwarf_gpr_r13  , gcc_dwarf_gpr_r13  , LLDB_INVALID_REGNUM      , gdb_gpr_r13        , gpr_r13       },       NULL,              NULL},
-    { DEFINE_GPR (r14   , NULL)     , { gcc_dwarf_gpr_r14  , gcc_dwarf_gpr_r14  , LLDB_INVALID_REGNUM      , gdb_gpr_r14        , gpr_r14       },       NULL,              NULL},
-    { DEFINE_GPR (r15   , NULL)     , { gcc_dwarf_gpr_r15  , gcc_dwarf_gpr_r15  , LLDB_INVALID_REGNUM      , gdb_gpr_r15        , gpr_r15       },       NULL,              NULL},
-    { DEFINE_GPR (rip   , "pc")     , { gcc_dwarf_gpr_rip  , gcc_dwarf_gpr_rip  , LLDB_REGNUM_GENERIC_PC   , gdb_gpr_rip        , gpr_rip       },       NULL,              NULL},
-    { DEFINE_GPR (rflags, "flags")  , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_REGNUM_GENERIC_FLAGS, gdb_gpr_rflags     , gpr_rflags    },       NULL,              NULL},
-    { DEFINE_GPR (cs    , NULL)     , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , gdb_gpr_cs         , gpr_cs        },       NULL,              NULL},
-    { DEFINE_GPR (fs    , NULL)     , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , gdb_gpr_fs         , gpr_fs        },       NULL,              NULL},
-    { DEFINE_GPR (gs    , NULL)     , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , gdb_gpr_gs         , gpr_gs        },       NULL,              NULL},
-
-    { DEFINE_FPU_UINT(fcw)          , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , gdb_fpu_fcw        , fpu_fcw       },       NULL,              NULL},
-    { DEFINE_FPU_UINT(fsw)          , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , gdb_fpu_fsw        , fpu_fsw       },       NULL,              NULL},
-    { DEFINE_FPU_UINT(ftw)          , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , gdb_fpu_ftw        , fpu_ftw       },       NULL,              NULL},
-    { DEFINE_FPU_UINT(fop)          , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , gdb_fpu_fop        , fpu_fop       },       NULL,              NULL},
-    { DEFINE_FPU_UINT(ip)           , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , gdb_fpu_ip         , fpu_ip        },       NULL,              NULL},
-    { DEFINE_FPU_UINT(cs)           , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , gdb_fpu_cs         , fpu_cs        },       NULL,              NULL},
-    { DEFINE_FPU_UINT(dp)           , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , gdb_fpu_dp         , fpu_dp        },       NULL,              NULL},
-    { DEFINE_FPU_UINT(ds)           , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , gdb_fpu_ds         , fpu_ds        },       NULL,              NULL},
-    { DEFINE_FPU_UINT(mxcsr)        , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , gdb_fpu_mxcsr      , fpu_mxcsr     },       NULL,              NULL},
+//  Macro auto defines most stuff   EH_FRAME                    DWARF                    GENERIC                    PROCESS PLUGIN       LLDB                VALUE REGS    INVALIDATE REGS
+//  =============================== ======================      ===================      ========================== ==================== =================== ==========    ===============
+    { DEFINE_GPR (rax   , NULL)     , { ehframe_dwarf_gpr_rax  , ehframe_dwarf_gpr_rax  , LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_rax       },       NULL,              NULL},
+    { DEFINE_GPR (rbx   , NULL)     , { ehframe_dwarf_gpr_rbx  , ehframe_dwarf_gpr_rbx  , LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_rbx       },       NULL,              NULL},
+    { DEFINE_GPR (rcx   , NULL)     , { ehframe_dwarf_gpr_rcx  , ehframe_dwarf_gpr_rcx  , LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_rcx       },       NULL,              NULL},
+    { DEFINE_GPR (rdx   , NULL)     , { ehframe_dwarf_gpr_rdx  , ehframe_dwarf_gpr_rdx  , LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_rdx       },       NULL,              NULL},
+    { DEFINE_GPR (rdi   , NULL)     , { ehframe_dwarf_gpr_rdi  , ehframe_dwarf_gpr_rdi  , LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_rdi       },       NULL,              NULL},
+    { DEFINE_GPR (rsi   , NULL)     , { ehframe_dwarf_gpr_rsi  , ehframe_dwarf_gpr_rsi  , LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_rsi       },       NULL,              NULL},
+    { DEFINE_GPR (rbp   , "fp")     , { ehframe_dwarf_gpr_rbp  , ehframe_dwarf_gpr_rbp  , LLDB_REGNUM_GENERIC_FP   , LLDB_INVALID_REGNUM, gpr_rbp       },       NULL,              NULL},
+    { DEFINE_GPR (rsp   , "sp")     , { ehframe_dwarf_gpr_rsp  , ehframe_dwarf_gpr_rsp  , LLDB_REGNUM_GENERIC_SP   , LLDB_INVALID_REGNUM, gpr_rsp       },       NULL,              NULL},
+    { DEFINE_GPR (r8    , NULL)     , { ehframe_dwarf_gpr_r8   , ehframe_dwarf_gpr_r8   , LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_r8        },       NULL,              NULL},
+    { DEFINE_GPR (r9    , NULL)     , { ehframe_dwarf_gpr_r9   , ehframe_dwarf_gpr_r9   , LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_r9        },       NULL,              NULL},
+    { DEFINE_GPR (r10   , NULL)     , { ehframe_dwarf_gpr_r10  , ehframe_dwarf_gpr_r10  , LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_r10       },       NULL,              NULL},
+    { DEFINE_GPR (r11   , NULL)     , { ehframe_dwarf_gpr_r11  , ehframe_dwarf_gpr_r11  , LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_r11       },       NULL,              NULL},
+    { DEFINE_GPR (r12   , NULL)     , { ehframe_dwarf_gpr_r12  , ehframe_dwarf_gpr_r12  , LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_r12       },       NULL,              NULL},
+    { DEFINE_GPR (r13   , NULL)     , { ehframe_dwarf_gpr_r13  , ehframe_dwarf_gpr_r13  , LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_r13       },       NULL,              NULL},
+    { DEFINE_GPR (r14   , NULL)     , { ehframe_dwarf_gpr_r14  , ehframe_dwarf_gpr_r14  , LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_r14       },       NULL,              NULL},
+    { DEFINE_GPR (r15   , NULL)     , { ehframe_dwarf_gpr_r15  , ehframe_dwarf_gpr_r15  , LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_r15       },       NULL,              NULL},
+    { DEFINE_GPR (rip   , "pc")     , { ehframe_dwarf_gpr_rip  , ehframe_dwarf_gpr_rip  , LLDB_REGNUM_GENERIC_PC   , LLDB_INVALID_REGNUM, gpr_rip       },       NULL,              NULL},
+    { DEFINE_GPR (rflags, "flags")  , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM, gpr_rflags    },       NULL,              NULL},
+    { DEFINE_GPR (cs    , NULL)     , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_cs        },       NULL,              NULL},
+    { DEFINE_GPR (fs    , NULL)     , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_fs        },       NULL,              NULL},
+    { DEFINE_GPR (gs    , NULL)     , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, gpr_gs        },       NULL,              NULL},
+
+    { DEFINE_FPU_UINT(fcw)          , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_fcw       },       NULL,              NULL},
+    { DEFINE_FPU_UINT(fsw)          , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_fsw       },       NULL,              NULL},
+    { DEFINE_FPU_UINT(ftw)          , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_ftw       },       NULL,              NULL},
+    { DEFINE_FPU_UINT(fop)          , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_fop       },       NULL,              NULL},
+    { DEFINE_FPU_UINT(ip)           , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_ip        },       NULL,              NULL},
+    { DEFINE_FPU_UINT(cs)           , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_cs        },       NULL,              NULL},
+    { DEFINE_FPU_UINT(dp)           , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_dp        },       NULL,              NULL},
+    { DEFINE_FPU_UINT(ds)           , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_ds        },       NULL,              NULL},
+    { DEFINE_FPU_UINT(mxcsr)        , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_mxcsr     },       NULL,              NULL},
     { DEFINE_FPU_UINT(mxcsrmask)    , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM      , LLDB_INVALID_REGNUM, fpu_mxcsrmask },       NULL,              NULL},
     { DEFINE_FPU_VECT(stmm,0)   },
     { DEFINE_FPU_VECT(stmm,1)   },
@@ -321,6 +241,25 @@ static RegisterInfo g_register_infos[] =
 
 static size_t k_num_register_infos = llvm::array_lengthof(g_register_infos);
 
+RegisterContextDarwin_x86_64::RegisterContextDarwin_x86_64 (Thread &thread, uint32_t concrete_frame_idx) :
+    RegisterContext (thread, concrete_frame_idx),
+    gpr(),
+    fpu(),
+    exc()
+{
+    uint32_t i;
+    for (i=0; i<kNumErrors; i++)
+    {
+        gpr_errs[i] = -1;
+        fpu_errs[i] = -1;
+        exc_errs[i] = -1;
+    }
+}
+
+RegisterContextDarwin_x86_64::~RegisterContextDarwin_x86_64()
+{
+}
+
 
 void
 RegisterContextDarwin_x86_64::InvalidateAllRegisters ()
@@ -687,7 +626,7 @@ RegisterContextDarwin_x86_64::ReadRegister (const RegisterInfo *reg_info,
     case fpu_stmm5:
     case fpu_stmm6:
     case fpu_stmm7:
-        value.SetBytes(fpu.stmm[reg - fpu_stmm0].bytes, reg_info->byte_size, lldb::endian::InlHostByteOrder());
+        value.SetBytes(fpu.stmm[reg - fpu_stmm0].bytes, reg_info->byte_size, endian::InlHostByteOrder());
         break;
 
     case fpu_xmm0:
@@ -706,7 +645,7 @@ RegisterContextDarwin_x86_64::ReadRegister (const RegisterInfo *reg_info,
     case fpu_xmm13:
     case fpu_xmm14:
     case fpu_xmm15:
-        value.SetBytes(fpu.xmm[reg - fpu_xmm0].bytes, reg_info->byte_size, lldb::endian::InlHostByteOrder());
+        value.SetBytes(fpu.xmm[reg - fpu_xmm0].bytes, reg_info->byte_size, endian::InlHostByteOrder());
         break;
 
     case exc_trapno:
@@ -919,116 +858,51 @@ RegisterContextDarwin_x86_64::ConvertRegisterKindToRegisterNumber (lldb::Registe
             break;
         }
     }
-    else if (kind == eRegisterKindGCC || kind == eRegisterKindDWARF)
-    {
-        switch (reg)
-        {
-        case gcc_dwarf_gpr_rax:  return gpr_rax;
-        case gcc_dwarf_gpr_rdx:  return gpr_rdx;
-        case gcc_dwarf_gpr_rcx:  return gpr_rcx;
-        case gcc_dwarf_gpr_rbx:  return gpr_rbx;
-        case gcc_dwarf_gpr_rsi:  return gpr_rsi;
-        case gcc_dwarf_gpr_rdi:  return gpr_rdi;
-        case gcc_dwarf_gpr_rbp:  return gpr_rbp;
-        case gcc_dwarf_gpr_rsp:  return gpr_rsp;
-        case gcc_dwarf_gpr_r8:   return gpr_r8;
-        case gcc_dwarf_gpr_r9:   return gpr_r9;
-        case gcc_dwarf_gpr_r10:  return gpr_r10;
-        case gcc_dwarf_gpr_r11:  return gpr_r11;
-        case gcc_dwarf_gpr_r12:  return gpr_r12;
-        case gcc_dwarf_gpr_r13:  return gpr_r13;
-        case gcc_dwarf_gpr_r14:  return gpr_r14;
-        case gcc_dwarf_gpr_r15:  return gpr_r15;
-        case gcc_dwarf_gpr_rip:  return gpr_rip;
-        case gcc_dwarf_fpu_xmm0: return fpu_xmm0;
-        case gcc_dwarf_fpu_xmm1: return fpu_xmm1;
-        case gcc_dwarf_fpu_xmm2: return fpu_xmm2;
-        case gcc_dwarf_fpu_xmm3: return fpu_xmm3;
-        case gcc_dwarf_fpu_xmm4: return fpu_xmm4;
-        case gcc_dwarf_fpu_xmm5: return fpu_xmm5;
-        case gcc_dwarf_fpu_xmm6: return fpu_xmm6;
-        case gcc_dwarf_fpu_xmm7: return fpu_xmm7;
-        case gcc_dwarf_fpu_xmm8: return fpu_xmm8;
-        case gcc_dwarf_fpu_xmm9: return fpu_xmm9;
-        case gcc_dwarf_fpu_xmm10: return fpu_xmm10;
-        case gcc_dwarf_fpu_xmm11: return fpu_xmm11;
-        case gcc_dwarf_fpu_xmm12: return fpu_xmm12;
-        case gcc_dwarf_fpu_xmm13: return fpu_xmm13;
-        case gcc_dwarf_fpu_xmm14: return fpu_xmm14;
-        case gcc_dwarf_fpu_xmm15: return fpu_xmm15;
-        case gcc_dwarf_fpu_stmm0: return fpu_stmm0;
-        case gcc_dwarf_fpu_stmm1: return fpu_stmm1;
-        case gcc_dwarf_fpu_stmm2: return fpu_stmm2;
-        case gcc_dwarf_fpu_stmm3: return fpu_stmm3;
-        case gcc_dwarf_fpu_stmm4: return fpu_stmm4;
-        case gcc_dwarf_fpu_stmm5: return fpu_stmm5;
-        case gcc_dwarf_fpu_stmm6: return fpu_stmm6;
-        case gcc_dwarf_fpu_stmm7: return fpu_stmm7;
-        default:
-            break;
-        }
-    }
-    else if (kind == eRegisterKindGDB)
+    else if (kind == eRegisterKindEHFrame || kind == eRegisterKindDWARF)
     {
         switch (reg)
         {
-        case gdb_gpr_rax     : return gpr_rax;
-        case gdb_gpr_rbx     : return gpr_rbx;
-        case gdb_gpr_rcx     : return gpr_rcx;
-        case gdb_gpr_rdx     : return gpr_rdx;
-        case gdb_gpr_rsi     : return gpr_rsi;
-        case gdb_gpr_rdi     : return gpr_rdi;
-        case gdb_gpr_rbp     : return gpr_rbp;
-        case gdb_gpr_rsp     : return gpr_rsp;
-        case gdb_gpr_r8      : return gpr_r8;
-        case gdb_gpr_r9      : return gpr_r9;
-        case gdb_gpr_r10     : return gpr_r10;
-        case gdb_gpr_r11     : return gpr_r11;
-        case gdb_gpr_r12     : return gpr_r12;
-        case gdb_gpr_r13     : return gpr_r13;
-        case gdb_gpr_r14     : return gpr_r14;
-        case gdb_gpr_r15     : return gpr_r15;
-        case gdb_gpr_rip     : return gpr_rip;
-        case gdb_gpr_rflags  : return gpr_rflags;
-        case gdb_gpr_cs      : return gpr_cs;
-        case gdb_gpr_ss      : return gpr_gs;   // HACK: For now for "ss", just copy what is in "gs"
-        case gdb_gpr_ds      : return gpr_gs;   // HACK: For now for "ds", just copy what is in "gs"
-        case gdb_gpr_es      : return gpr_gs;   // HACK: For now for "es", just copy what is in "gs"
-        case gdb_gpr_fs      : return gpr_fs;
-        case gdb_gpr_gs      : return gpr_gs;
-        case gdb_fpu_stmm0   : return fpu_stmm0;
-        case gdb_fpu_stmm1   : return fpu_stmm1;
-        case gdb_fpu_stmm2   : return fpu_stmm2;
-        case gdb_fpu_stmm3   : return fpu_stmm3;
-        case gdb_fpu_stmm4   : return fpu_stmm4;
-        case gdb_fpu_stmm5   : return fpu_stmm5;
-        case gdb_fpu_stmm6   : return fpu_stmm6;
-        case gdb_fpu_stmm7   : return fpu_stmm7;
-        case gdb_fpu_fctrl   : return fpu_fctrl;
-        case gdb_fpu_fstat   : return fpu_fstat;
-        case gdb_fpu_ftag    : return fpu_ftag;
-        case gdb_fpu_fiseg   : return fpu_fiseg;
-        case gdb_fpu_fioff   : return fpu_fioff;
-        case gdb_fpu_foseg   : return fpu_foseg;
-        case gdb_fpu_fooff   : return fpu_fooff;
-        case gdb_fpu_fop     : return fpu_fop;
-        case gdb_fpu_xmm0    : return fpu_xmm0;
-        case gdb_fpu_xmm1    : return fpu_xmm1;
-        case gdb_fpu_xmm2    : return fpu_xmm2;
-        case gdb_fpu_xmm3    : return fpu_xmm3;
-        case gdb_fpu_xmm4    : return fpu_xmm4;
-        case gdb_fpu_xmm5    : return fpu_xmm5;
-        case gdb_fpu_xmm6    : return fpu_xmm6;
-        case gdb_fpu_xmm7    : return fpu_xmm7;
-        case gdb_fpu_xmm8    : return fpu_xmm8;
-        case gdb_fpu_xmm9    : return fpu_xmm9;
-        case gdb_fpu_xmm10   : return fpu_xmm10;
-        case gdb_fpu_xmm11   : return fpu_xmm11;
-        case gdb_fpu_xmm12   : return fpu_xmm12;
-        case gdb_fpu_xmm13   : return fpu_xmm13;
-        case gdb_fpu_xmm14   : return fpu_xmm14;
-        case gdb_fpu_xmm15   : return fpu_xmm15;
-        case gdb_fpu_mxcsr   : return fpu_mxcsr;
+        case ehframe_dwarf_gpr_rax:  return gpr_rax;
+        case ehframe_dwarf_gpr_rdx:  return gpr_rdx;
+        case ehframe_dwarf_gpr_rcx:  return gpr_rcx;
+        case ehframe_dwarf_gpr_rbx:  return gpr_rbx;
+        case ehframe_dwarf_gpr_rsi:  return gpr_rsi;
+        case ehframe_dwarf_gpr_rdi:  return gpr_rdi;
+        case ehframe_dwarf_gpr_rbp:  return gpr_rbp;
+        case ehframe_dwarf_gpr_rsp:  return gpr_rsp;
+        case ehframe_dwarf_gpr_r8:   return gpr_r8;
+        case ehframe_dwarf_gpr_r9:   return gpr_r9;
+        case ehframe_dwarf_gpr_r10:  return gpr_r10;
+        case ehframe_dwarf_gpr_r11:  return gpr_r11;
+        case ehframe_dwarf_gpr_r12:  return gpr_r12;
+        case ehframe_dwarf_gpr_r13:  return gpr_r13;
+        case ehframe_dwarf_gpr_r14:  return gpr_r14;
+        case ehframe_dwarf_gpr_r15:  return gpr_r15;
+        case ehframe_dwarf_gpr_rip:  return gpr_rip;
+        case ehframe_dwarf_fpu_xmm0: return fpu_xmm0;
+        case ehframe_dwarf_fpu_xmm1: return fpu_xmm1;
+        case ehframe_dwarf_fpu_xmm2: return fpu_xmm2;
+        case ehframe_dwarf_fpu_xmm3: return fpu_xmm3;
+        case ehframe_dwarf_fpu_xmm4: return fpu_xmm4;
+        case ehframe_dwarf_fpu_xmm5: return fpu_xmm5;
+        case ehframe_dwarf_fpu_xmm6: return fpu_xmm6;
+        case ehframe_dwarf_fpu_xmm7: return fpu_xmm7;
+        case ehframe_dwarf_fpu_xmm8: return fpu_xmm8;
+        case ehframe_dwarf_fpu_xmm9: return fpu_xmm9;
+        case ehframe_dwarf_fpu_xmm10: return fpu_xmm10;
+        case ehframe_dwarf_fpu_xmm11: return fpu_xmm11;
+        case ehframe_dwarf_fpu_xmm12: return fpu_xmm12;
+        case ehframe_dwarf_fpu_xmm13: return fpu_xmm13;
+        case ehframe_dwarf_fpu_xmm14: return fpu_xmm14;
+        case ehframe_dwarf_fpu_xmm15: return fpu_xmm15;
+        case ehframe_dwarf_fpu_stmm0: return fpu_stmm0;
+        case ehframe_dwarf_fpu_stmm1: return fpu_stmm1;
+        case ehframe_dwarf_fpu_stmm2: return fpu_stmm2;
+        case ehframe_dwarf_fpu_stmm3: return fpu_stmm3;
+        case ehframe_dwarf_fpu_stmm4: return fpu_stmm4;
+        case ehframe_dwarf_fpu_stmm5: return fpu_stmm5;
+        case ehframe_dwarf_fpu_stmm6: return fpu_stmm6;
+        case ehframe_dwarf_fpu_stmm7: return fpu_stmm7;
         default:
             break;
         }
diff --git a/source/Plugins/Process/Utility/RegisterContextDarwin_x86_64.h b/source/Plugins/Process/Utility/RegisterContextDarwin_x86_64.h
index 09e35e9c423ed..ed627e194a26c 100644
--- a/source/Plugins/Process/Utility/RegisterContextDarwin_x86_64.h
+++ b/source/Plugins/Process/Utility/RegisterContextDarwin_x86_64.h
@@ -23,41 +23,42 @@ public:
     RegisterContextDarwin_x86_64 (lldb_private::Thread &thread,
                                   uint32_t concrete_frame_idx);
 
-    virtual
-    ~RegisterContextDarwin_x86_64();
+    ~RegisterContextDarwin_x86_64() override;
 
-    virtual void
-    InvalidateAllRegisters ();
+    void
+    InvalidateAllRegisters() override;
 
-    virtual size_t
-    GetRegisterCount ();
+    size_t
+    GetRegisterCount() override;
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex (size_t reg);
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoAtIndex(size_t reg) override;
 
-    virtual size_t
-    GetRegisterSetCount ();
+    size_t
+    GetRegisterSetCount() override;
 
-    virtual const lldb_private::RegisterSet *
-    GetRegisterSet (size_t set);
+    const lldb_private::RegisterSet *
+    GetRegisterSet(size_t set) override;
 
-    virtual bool
-    ReadRegister (const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value);
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &value) override;
 
-    virtual bool
-    WriteRegister (const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value);
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &value) override;
     
-    virtual bool
-    ReadAllRegisterValues (lldb::DataBufferSP &data_sp);
+    bool
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
 
-    virtual bool
-    WriteAllRegisterValues (const lldb::DataBufferSP &data_sp);
+    bool
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
-    virtual uint32_t
-    ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num);
+    uint32_t
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
 
-    virtual bool
-    HardwareSingleStep (bool enable);
+    bool
+    HardwareSingleStep(bool enable) override;
 
     struct GPR
     {
@@ -268,7 +269,6 @@ protected:
 
     static const lldb_private::RegisterInfo *
     GetRegisterInfos ();
-
 };
 
-#endif  // liblldb_RegisterContextDarwin_x86_64_h_
+#endif // liblldb_RegisterContextDarwin_x86_64_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextDummy.cpp b/source/Plugins/Process/Utility/RegisterContextDummy.cpp
index 329b0a7968a21..0859e4e9419ce 100644
--- a/source/Plugins/Process/Utility/RegisterContextDummy.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextDummy.cpp
@@ -51,10 +51,10 @@ RegisterContext (thread, concrete_frame_idx)
     m_pc_reg_info.format = eFormatPointer;
     m_pc_reg_info.invalidate_regs = NULL;
     m_pc_reg_info.value_regs = NULL;
-    m_pc_reg_info.kinds[eRegisterKindGCC] = LLDB_INVALID_REGNUM;
+    m_pc_reg_info.kinds[eRegisterKindEHFrame] = LLDB_INVALID_REGNUM;
     m_pc_reg_info.kinds[eRegisterKindDWARF] = LLDB_INVALID_REGNUM;
     m_pc_reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC;
-    m_pc_reg_info.kinds[eRegisterKindGDB] = LLDB_INVALID_REGNUM;
+    m_pc_reg_info.kinds[eRegisterKindProcessPlugin] = LLDB_INVALID_REGNUM;
     m_pc_reg_info.kinds[eRegisterKindLLDB] = LLDB_INVALID_REGNUM;
 }
 
diff --git a/source/Plugins/Process/Utility/RegisterContextDummy.h b/source/Plugins/Process/Utility/RegisterContextDummy.h
index ddf4667130480..9f6a8dc347b51 100644
--- a/source/Plugins/Process/Utility/RegisterContextDummy.h
+++ b/source/Plugins/Process/Utility/RegisterContextDummy.h
@@ -10,8 +10,12 @@
 #ifndef lldb_RegisterContextDummy_h_
 #define lldb_RegisterContextDummy_h_
 
+// C Includes
+// C++ Includes
 #include <vector>
 
+// Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-private.h"
 #include "lldb/Target/RegisterContext.h"
 #include "lldb/Symbol/SymbolContext.h"
@@ -25,42 +29,39 @@ public:
     
     RegisterContextDummy (Thread &thread, uint32_t concrete_frame_idx, uint32_t address_byte_size);
     
-    ///
-    // pure virtual functions from the base class that we must implement
-    ///
+    ~RegisterContextDummy() override;
 
-    virtual
-    ~RegisterContextDummy ();
+    void
+    InvalidateAllRegisters() override;
 
-    virtual void
-    InvalidateAllRegisters ();
+    size_t
+    GetRegisterCount() override;
 
-    virtual size_t
-    GetRegisterCount ();
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoAtIndex(size_t reg) override;
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex (size_t reg);
+    size_t
+    GetRegisterSetCount() override;
 
-    virtual size_t
-    GetRegisterSetCount ();
+    const lldb_private::RegisterSet *
+    GetRegisterSet(size_t reg_set) override;
 
-    virtual const lldb_private::RegisterSet *
-    GetRegisterSet (size_t reg_set);
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &value) override;
 
-    virtual bool
-    ReadRegister (const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value);
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &value) override;
 
-    virtual bool
-    WriteRegister (const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value);
+    bool
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
 
-    virtual bool
-    ReadAllRegisterValues (lldb::DataBufferSP &data_sp);
+    bool
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
-    virtual bool
-    WriteAllRegisterValues (const lldb::DataBufferSP &data_sp);
-
-    virtual uint32_t
-    ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num);
+    uint32_t
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
     
 private:
     //------------------------------------------------------------------
@@ -72,6 +73,7 @@ private:
     
     DISALLOW_COPY_AND_ASSIGN (RegisterContextDummy);
 };
+
 } // namespace lldb_private
 
-#endif  // lldb_RegisterContextDummy_h_
+#endif // lldb_RegisterContextDummy_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextFreeBSD_arm.cpp b/source/Plugins/Process/Utility/RegisterContextFreeBSD_arm.cpp
index 8005a6339f6d7..a507dad69f602 100644
--- a/source/Plugins/Process/Utility/RegisterContextFreeBSD_arm.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextFreeBSD_arm.cpp
@@ -23,6 +23,7 @@ using namespace lldb_private;
 // http://svnweb.freebsd.org/base/head/sys/arm/include/reg.h
 #define GPR_OFFSET(idx) ((idx) * 4)
 #define FPU_OFFSET(idx) ((idx) * 4 + sizeof (RegisterContextFreeBSD_arm::GPR))
+#define FPSCR_OFFSET (LLVM_EXTENSION offsetof (RegisterContextFreeBSD_arm::FPU, fpscr) + sizeof (RegisterContextFreeBSD_arm::GPR))
 #define EXC_OFFSET(idx) ((idx) * 4 + sizeof (RegisterContextFreeBSD_arm::GPR) + sizeof (RegisterContextFreeBSD_arm::FPU))
 #define DBG_OFFSET(reg) ((LLVM_EXTENSION offsetof (RegisterContextFreeBSD_arm::DBG, reg) + sizeof (RegisterContextFreeBSD_arm::GPR) + sizeof (RegisterContextFreeBSD_arm::FPU) + sizeof (RegisterContextFreeBSD_arm::EXC)))
 
diff --git a/source/Plugins/Process/Utility/RegisterContextFreeBSD_arm.h b/source/Plugins/Process/Utility/RegisterContextFreeBSD_arm.h
index c4287e9f0a474..f2d9364b3ce6d 100644
--- a/source/Plugins/Process/Utility/RegisterContextFreeBSD_arm.h
+++ b/source/Plugins/Process/Utility/RegisterContextFreeBSD_arm.h
@@ -12,7 +12,6 @@
 
 #include "lldb/lldb-private.h"
 #include "lldb/Target/RegisterContext.h"
-#include "RegisterContextPOSIX.h"
 #include "RegisterInfoInterface.h"
 
 class RegisterContextFreeBSD_arm
diff --git a/source/Plugins/Process/Utility/RegisterContextFreeBSD_arm64.h b/source/Plugins/Process/Utility/RegisterContextFreeBSD_arm64.h
index 249027aaa76c6..cfdae4d2b557d 100644
--- a/source/Plugins/Process/Utility/RegisterContextFreeBSD_arm64.h
+++ b/source/Plugins/Process/Utility/RegisterContextFreeBSD_arm64.h
@@ -10,7 +10,7 @@
 #ifndef liblldb_RegisterContextFreeBSD_arm64_H_
 #define liblldb_RegisterContextFreeBSD_arm64_H_
 
-#include "RegisterContextPOSIX.h"
+#include "RegisterInfoInterface.h"
 
 class RegisterContextFreeBSD_arm64:
     public lldb_private::RegisterInfoInterface
diff --git a/source/Plugins/Process/Utility/RegisterContextFreeBSD_i386.h b/source/Plugins/Process/Utility/RegisterContextFreeBSD_i386.h
index 62792c02e2b91..9527fc03f7281 100644
--- a/source/Plugins/Process/Utility/RegisterContextFreeBSD_i386.h
+++ b/source/Plugins/Process/Utility/RegisterContextFreeBSD_i386.h
@@ -10,7 +10,7 @@
 #ifndef liblldb_RegisterContextFreeBSD_i386_H_
 #define liblldb_RegisterContextFreeBSD_i386_H_
 
-#include "RegisterContextPOSIX.h"
+#include "RegisterInfoInterface.h"
 
 class RegisterContextFreeBSD_i386
   : public lldb_private::RegisterInfoInterface
diff --git a/source/Plugins/Process/Utility/RegisterContextFreeBSD_mips64.h b/source/Plugins/Process/Utility/RegisterContextFreeBSD_mips64.h
index f9a3ce09c5b19..5c042af20eac3 100644
--- a/source/Plugins/Process/Utility/RegisterContextFreeBSD_mips64.h
+++ b/source/Plugins/Process/Utility/RegisterContextFreeBSD_mips64.h
@@ -10,7 +10,7 @@
 #ifndef liblldb_RegisterContextFreeBSD_mips64_H_
 #define liblldb_RegisterContextFreeBSD_mips64_H_
 
-#include "RegisterContextPOSIX.h"
+#include "RegisterInfoInterface.h"
 
 class RegisterContextFreeBSD_mips64:
     public lldb_private::RegisterInfoInterface
diff --git a/source/Plugins/Process/Utility/RegisterContextFreeBSD_powerpc.h b/source/Plugins/Process/Utility/RegisterContextFreeBSD_powerpc.h
index b907fe99b5e05..930683f8a870a 100644
--- a/source/Plugins/Process/Utility/RegisterContextFreeBSD_powerpc.h
+++ b/source/Plugins/Process/Utility/RegisterContextFreeBSD_powerpc.h
@@ -7,17 +7,21 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef liblldb_RegisterContextFreeBSD_powerpc_H_
-#define liblldb_RegisterContextFreeBSD_powerpc_H_
+#ifndef liblldb_RegisterContextFreeBSD_powerpc_h_
+#define liblldb_RegisterContextFreeBSD_powerpc_h_
 
-#include "RegisterContextPOSIX.h"
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "RegisterInfoInterface.h"
 
 class RegisterContextFreeBSD_powerpc:
     public lldb_private::RegisterInfoInterface
 {
 public:
     RegisterContextFreeBSD_powerpc(const lldb_private::ArchSpec &target_arch);
-    virtual ~RegisterContextFreeBSD_powerpc();
+    ~RegisterContextFreeBSD_powerpc() override;
 
     size_t
     GetGPRSize() const override;
@@ -34,7 +38,7 @@ class RegisterContextFreeBSD_powerpc32:
 {
 public:
     RegisterContextFreeBSD_powerpc32(const lldb_private::ArchSpec &target_arch);
-    virtual ~RegisterContextFreeBSD_powerpc32();
+    ~RegisterContextFreeBSD_powerpc32() override;
 
     size_t
     GetGPRSize() const override;
@@ -51,7 +55,7 @@ class RegisterContextFreeBSD_powerpc64:
 {
 public:
     RegisterContextFreeBSD_powerpc64(const lldb_private::ArchSpec &target_arch);
-    virtual ~RegisterContextFreeBSD_powerpc64();
+    ~RegisterContextFreeBSD_powerpc64() override;
 
     size_t
     GetGPRSize() const override;
@@ -63,4 +67,4 @@ public:
     GetRegisterCount() const override;
 };
 
-#endif
+#endif // liblldb_RegisterContextFreeBSD_powerpc_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextFreeBSD_x86_64.h b/source/Plugins/Process/Utility/RegisterContextFreeBSD_x86_64.h
index 21fbdb4681b3b..e739fa50ed6c5 100644
--- a/source/Plugins/Process/Utility/RegisterContextFreeBSD_x86_64.h
+++ b/source/Plugins/Process/Utility/RegisterContextFreeBSD_x86_64.h
@@ -10,7 +10,7 @@
 #ifndef liblldb_RegisterContextFreeBSD_x86_64_H_
 #define liblldb_RegisterContextFreeBSD_x86_64_H_
 
-#include "RegisterContextPOSIX.h"
+#include "RegisterInfoInterface.h"
 
 class RegisterContextFreeBSD_x86_64:
     public lldb_private::RegisterInfoInterface
diff --git a/source/Plugins/Process/Utility/RegisterContextHistory.cpp b/source/Plugins/Process/Utility/RegisterContextHistory.cpp
index 3c370103629e2..9d2181376e09b 100644
--- a/source/Plugins/Process/Utility/RegisterContextHistory.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextHistory.cpp
@@ -52,10 +52,10 @@ RegisterContext (thread, concrete_frame_idx),
     m_pc_reg_info.format = eFormatPointer;
     m_pc_reg_info.invalidate_regs = NULL;
     m_pc_reg_info.value_regs = NULL;
-    m_pc_reg_info.kinds[eRegisterKindGCC] = LLDB_INVALID_REGNUM;
+    m_pc_reg_info.kinds[eRegisterKindEHFrame] = LLDB_INVALID_REGNUM;
     m_pc_reg_info.kinds[eRegisterKindDWARF] = LLDB_INVALID_REGNUM;
     m_pc_reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC;
-    m_pc_reg_info.kinds[eRegisterKindGDB] = LLDB_INVALID_REGNUM;
+    m_pc_reg_info.kinds[eRegisterKindProcessPlugin] = LLDB_INVALID_REGNUM;
     m_pc_reg_info.kinds[eRegisterKindLLDB] = LLDB_INVALID_REGNUM;
 }
 
diff --git a/source/Plugins/Process/Utility/RegisterContextHistory.h b/source/Plugins/Process/Utility/RegisterContextHistory.h
index 04842c62aff17..3f44a1fde68bf 100644
--- a/source/Plugins/Process/Utility/RegisterContextHistory.h
+++ b/source/Plugins/Process/Utility/RegisterContextHistory.h
@@ -10,8 +10,12 @@
 #ifndef lldb_RegisterContextHistory_h_
 #define lldb_RegisterContextHistory_h_
 
+// C Includes
+// C++ Includes
 #include <vector>
 
+// Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-private.h"
 #include "lldb/Target/RegisterContext.h"
 #include "lldb/Symbol/SymbolContext.h"
@@ -25,42 +29,39 @@ public:
     
     RegisterContextHistory (Thread &thread, uint32_t concrete_frame_idx, uint32_t address_byte_size, lldb::addr_t pc_value);
     
-    ///
-    // pure virtual functions from the base class that we must implement
-    ///
+    ~RegisterContextHistory() override;
 
-    virtual
-    ~RegisterContextHistory ();
+    void
+    InvalidateAllRegisters() override;
 
-    virtual void
-    InvalidateAllRegisters ();
+    size_t
+    GetRegisterCount() override;
 
-    virtual size_t
-    GetRegisterCount ();
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoAtIndex(size_t reg) override;
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex (size_t reg);
+    size_t
+    GetRegisterSetCount() override;
 
-    virtual size_t
-    GetRegisterSetCount ();
+    const lldb_private::RegisterSet *
+    GetRegisterSet(size_t reg_set) override;
 
-    virtual const lldb_private::RegisterSet *
-    GetRegisterSet (size_t reg_set);
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &value) override;
 
-    virtual bool
-    ReadRegister (const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value);
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &value) override;
 
-    virtual bool
-    WriteRegister (const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value);
+    bool
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
 
-    virtual bool
-    ReadAllRegisterValues (lldb::DataBufferSP &data_sp);
+    bool
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
-    virtual bool
-    WriteAllRegisterValues (const lldb::DataBufferSP &data_sp);
-
-    virtual uint32_t
-    ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num);
+    uint32_t
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
     
 private:
     //------------------------------------------------------------------
@@ -76,4 +77,4 @@ private:
 };
 } // namespace lldb_private
 
-#endif  // lldb_RegisterContextHistory_h_
+#endif // lldb_RegisterContextHistory_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextLLDB.cpp b/source/Plugins/Process/Utility/RegisterContextLLDB.cpp
index 37b007cfffcfb..278a1d5dabf64 100644
--- a/source/Plugins/Process/Utility/RegisterContextLLDB.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextLLDB.cpp
@@ -17,6 +17,7 @@
 #include "lldb/Core/RegisterValue.h"
 #include "lldb/Core/Value.h"
 #include "lldb/Expression/DWARFExpression.h"
+#include "lldb/Symbol/ArmUnwindInfo.h"
 #include "lldb/Symbol/DWARFCallFrameInfo.h"
 #include "lldb/Symbol/FuncUnwinders.h"
 #include "lldb/Symbol/Function.h"
@@ -634,28 +635,30 @@ bool
 RegisterContextLLDB::CheckIfLoopingStack ()
 {
     // If we have a bad stack setup, we can get the same CFA value multiple times -- or even
-    // more devious, we can actually oscillate between two CFA values.  Detect that here and
+    // more devious, we can actually oscillate between two CFA values. Detect that here and
     // break out to avoid a possible infinite loop in lldb trying to unwind the stack.
-    addr_t next_frame_cfa;
-    addr_t next_next_frame_cfa = LLDB_INVALID_ADDRESS;
-    if (GetNextFrame().get() && GetNextFrame()->GetCFA(next_frame_cfa))
+    // To detect when we have the same CFA value multiple times, we compare the CFA of the current
+    // frame with the 2nd next frame because in some specail case (e.g. signal hanlders, hand
+    // written assembly without ABI compiance) we can have 2 frames with the same CFA (in theory we
+    // can have arbitrary number of frames with the same CFA, but more then 2 is very very unlikely)
+
+    RegisterContextLLDB::SharedPtr next_frame = GetNextFrame();
+    if (next_frame)
     {
-        if (next_frame_cfa == m_cfa)
+        RegisterContextLLDB::SharedPtr next_next_frame = next_frame->GetNextFrame();
+        addr_t next_next_frame_cfa = LLDB_INVALID_ADDRESS;
+        if (next_next_frame && next_next_frame->GetCFA(next_next_frame_cfa))
         {
-            // We have a loop in the stack unwind
-            return true;
-        }
-        if (GetNextFrame()->GetNextFrame().get() && GetNextFrame()->GetNextFrame()->GetCFA(next_next_frame_cfa)
-            && next_next_frame_cfa == m_cfa)
-        {
-            // We have a loop in the stack unwind
-            return true; 
+            if (next_next_frame_cfa == m_cfa)
+            {
+                // We have a loop in the stack unwind
+                return true; 
+            }
         }
     }
     return false;
 }
 
-
 bool
 RegisterContextLLDB::IsFrameZero () const
 {
@@ -792,24 +795,38 @@ RegisterContextLLDB::GetFullUnwindPlanForFrame ()
         func_unwinders_sp = pc_module_sp->GetObjectFile()->GetUnwindTable().GetFuncUnwindersContainingAddress (m_current_pc, m_sym_ctx);
     }
 
-    // No FuncUnwinders available for this pc (i.e. a stripped function symbol and -fomit-frame-pointer).
-    // Try using the eh_frame information relative to the current PC,
-    // and finally fall back on the architectural default unwind.
+    // No FuncUnwinders available for this pc (stripped function symbols, lldb could not augment its
+    // function table with another source, like LC_FUNCTION_STARTS or eh_frame in ObjectFileMachO).
+    // See if eh_frame or the .ARM.exidx tables have unwind information for this address, else fall
+    // back to the architectural default unwind.
     if (!func_unwinders_sp)
     {
-        DWARFCallFrameInfo *eh_frame = pc_module_sp && pc_module_sp->GetObjectFile() ? 
-            pc_module_sp->GetObjectFile()->GetUnwindTable().GetEHFrameInfo() : nullptr;
-
         m_frame_type = eNormalFrame;
-        if (eh_frame && m_current_pc.IsValid())
+
+        if (!pc_module_sp || !pc_module_sp->GetObjectFile() || !m_current_pc.IsValid())
+            return arch_default_unwind_plan_sp;
+
+        // Even with -fomit-frame-pointer, we can try eh_frame to get back on track.
+        DWARFCallFrameInfo *eh_frame = pc_module_sp->GetObjectFile()->GetUnwindTable().GetEHFrameInfo();
+        if (eh_frame)
         {
             unwind_plan_sp.reset (new UnwindPlan (lldb::eRegisterKindGeneric));
-            // Even with -fomit-frame-pointer, we can try eh_frame to get back on track.
             if (eh_frame->GetUnwindPlan (m_current_pc, *unwind_plan_sp))
                 return unwind_plan_sp;
             else
                 unwind_plan_sp.reset();
         }
+
+        ArmUnwindInfo *arm_exidx = pc_module_sp->GetObjectFile()->GetUnwindTable().GetArmUnwindInfo();
+        if (arm_exidx)
+        {
+            unwind_plan_sp.reset (new UnwindPlan (lldb::eRegisterKindGeneric));
+            if (arm_exidx->GetUnwindPlan (exe_ctx.GetTargetRef(), m_current_pc, *unwind_plan_sp))
+                return unwind_plan_sp;
+            else
+                unwind_plan_sp.reset();
+        }
+
         return arch_default_unwind_plan_sp;
     }
 
@@ -864,12 +881,12 @@ RegisterContextLLDB::GetFullUnwindPlanForFrame ()
                 // then the architecture default plan and for hand written assembly code it is often
                 // written in a way that it valid at all location what helps in the most common
                 // cases when the instruction emulation fails.
-                UnwindPlanSP eh_frame_unwind_plan = func_unwinders_sp->GetEHFrameUnwindPlan (process->GetTarget(), m_current_offset_backed_up_one);
-                if (eh_frame_unwind_plan &&
-                    eh_frame_unwind_plan.get() != unwind_plan_sp.get() &&
-                    eh_frame_unwind_plan->GetSourceName() != unwind_plan_sp->GetSourceName())
+                UnwindPlanSP call_site_unwind_plan = func_unwinders_sp->GetUnwindPlanAtCallSite(process->GetTarget(), m_current_offset_backed_up_one);
+                if (call_site_unwind_plan &&
+                    call_site_unwind_plan.get() != unwind_plan_sp.get() &&
+                    call_site_unwind_plan->GetSourceName() != unwind_plan_sp->GetSourceName())
                 {
-                    m_fallback_unwind_plan_sp = eh_frame_unwind_plan;
+                    m_fallback_unwind_plan_sp = call_site_unwind_plan;
                 }
                 else
                 {
@@ -909,12 +926,12 @@ RegisterContextLLDB::GetFullUnwindPlanForFrame ()
         // more reliable even on non call sites then the architecture default plan and for hand
         // written assembly code it is often written in a way that it valid at all location what
         // helps in the most common cases when the instruction emulation fails.
-        UnwindPlanSP eh_frame_unwind_plan = func_unwinders_sp->GetEHFrameUnwindPlan (process->GetTarget(), m_current_offset_backed_up_one);
-        if (eh_frame_unwind_plan &&
-            eh_frame_unwind_plan.get() != unwind_plan_sp.get() &&
-            eh_frame_unwind_plan->GetSourceName() != unwind_plan_sp->GetSourceName())
+        UnwindPlanSP call_site_unwind_plan = func_unwinders_sp->GetUnwindPlanAtCallSite(process->GetTarget(), m_current_offset_backed_up_one);
+        if (call_site_unwind_plan &&
+            call_site_unwind_plan.get() != unwind_plan_sp.get() &&
+            call_site_unwind_plan->GetSourceName() != unwind_plan_sp->GetSourceName())
         {
-            m_fallback_unwind_plan_sp = eh_frame_unwind_plan;
+            m_fallback_unwind_plan_sp = call_site_unwind_plan;
         }
         else
         {
@@ -1488,7 +1505,11 @@ RegisterContextLLDB::SavedLocationForRegister (uint32_t lldb_regnum, lldb_privat
                                  unwindplan_regloc.GetDWARFExpressionLength(),
                                  process->GetByteOrder(), process->GetAddressByteSize());
         ModuleSP opcode_ctx;
-        DWARFExpression dwarfexpr (opcode_ctx, dwarfdata, 0, unwindplan_regloc.GetDWARFExpressionLength());
+        DWARFExpression dwarfexpr (opcode_ctx,
+                                   dwarfdata,
+                                   nullptr,
+                                   0,
+                                   unwindplan_regloc.GetDWARFExpressionLength());
         dwarfexpr.SetRegisterKind (unwindplan_registerkind);
         Value result;
         Error error;
@@ -1784,7 +1805,11 @@ RegisterContextLLDB::ReadCFAValueForRow (lldb::RegisterKind row_register_kind,
                                      row->GetCFAValue().GetDWARFExpressionLength(),
                                      process->GetByteOrder(), process->GetAddressByteSize());
             ModuleSP opcode_ctx;
-            DWARFExpression dwarfexpr (opcode_ctx, dwarfdata, 0, row->GetCFAValue().GetDWARFExpressionLength());
+            DWARFExpression dwarfexpr (opcode_ctx,
+                                       dwarfdata,
+                                       nullptr,
+                                       0,
+                                       row->GetCFAValue().GetDWARFExpressionLength());
             dwarfexpr.SetRegisterKind (row_register_kind);
             Value result;
             Error error;
diff --git a/source/Plugins/Process/Utility/RegisterContextLLDB.h b/source/Plugins/Process/Utility/RegisterContextLLDB.h
index 5f94a977448d5..68dca3d4965f6 100644
--- a/source/Plugins/Process/Utility/RegisterContextLLDB.h
+++ b/source/Plugins/Process/Utility/RegisterContextLLDB.h
@@ -10,8 +10,12 @@
 #ifndef lldb_RegisterContextLLDB_h_
 #define lldb_RegisterContextLLDB_h_
 
+// C Includes
+// C++ Includes
 #include <vector>
 
+// Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-private.h"
 #include "lldb/Target/RegisterContext.h"
 #include "lldb/Symbol/UnwindPlan.h"
@@ -33,42 +37,39 @@ public:
                          lldb_private::SymbolContext& sym_ctx,
                          uint32_t frame_number, lldb_private::UnwindLLDB& unwind_lldb);
 
-    ///
-    // pure virtual functions from the base class that we must implement
-    ///
-
-    virtual
-    ~RegisterContextLLDB () { }
+    ~RegisterContextLLDB() override = default;
 
-    virtual void
-    InvalidateAllRegisters ();
+    void
+    InvalidateAllRegisters() override;
 
-    virtual size_t
-    GetRegisterCount ();
+    size_t
+    GetRegisterCount() override;
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex (size_t reg);
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoAtIndex(size_t reg) override;
 
-    virtual size_t
-    GetRegisterSetCount ();
+    size_t
+    GetRegisterSetCount() override;
 
-    virtual const lldb_private::RegisterSet *
-    GetRegisterSet (size_t reg_set);
+    const lldb_private::RegisterSet *
+    GetRegisterSet(size_t reg_set) override;
 
-    virtual bool
-    ReadRegister (const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value);
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &value) override;
 
-    virtual bool
-    WriteRegister (const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value);
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &value) override;
 
-    virtual bool
-    ReadAllRegisterValues (lldb::DataBufferSP &data_sp);
+    bool
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
 
-    virtual bool
-    WriteAllRegisterValues (const lldb::DataBufferSP &data_sp);
+    bool
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
-    virtual uint32_t
-    ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num);
+    uint32_t
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
 
     bool
     IsValid () const;
@@ -99,7 +100,6 @@ private:
     // UnwindLLDB needs to pass around references to RegisterLocations
     friend class UnwindLLDB;
 
-
     // Returns true if we have an unwind loop -- the same stack frame unwinding 
     // multiple times.
     bool
@@ -130,7 +130,6 @@ private:
     bool
     IsSkipFrame () const;
 
-
     //------------------------------------------------------------------
     /// Determines if a SymbolContext is a trap handler or not
     ///
@@ -221,7 +220,6 @@ private:
     bool
     IsUnwindPlanValidForCurrentPC(lldb::UnwindPlanSP unwind_plan_sp, int &valid_pc_offset);
 
-
     lldb_private::Thread& m_thread;
 
     ///
@@ -269,4 +267,4 @@ private:
 
 } // namespace lldb_private
 
-#endif  // lldb_RegisterContextLLDB_h_
+#endif // lldb_RegisterContextLLDB_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextLinux_arm.cpp b/source/Plugins/Process/Utility/RegisterContextLinux_arm.cpp
index e7784b1712c34..f8d97aa3482cc 100644
--- a/source/Plugins/Process/Utility/RegisterContextLinux_arm.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextLinux_arm.cpp
@@ -22,6 +22,7 @@ using namespace lldb_private;
 // Based on RegisterContextDarwin_arm.cpp
 #define GPR_OFFSET(idx) ((idx) * 4)
 #define FPU_OFFSET(idx) ((idx) * 4 + sizeof (RegisterContextLinux_arm::GPR))
+#define FPSCR_OFFSET (LLVM_EXTENSION offsetof (RegisterContextLinux_arm::FPU, fpscr) + sizeof (RegisterContextLinux_arm::GPR))
 #define EXC_OFFSET(idx) ((idx) * 4 + sizeof (RegisterContextLinux_arm::GPR) + sizeof (RegisterContextLinux_arm::FPU))
 #define DBG_OFFSET(reg) ((LLVM_EXTENSION offsetof (RegisterContextLinux_arm::DBG, reg) + sizeof (RegisterContextLinux_arm::GPR) + sizeof (RegisterContextLinux_arm::FPU) + sizeof (RegisterContextLinux_arm::EXC)))
 
diff --git a/source/Plugins/Process/Utility/RegisterContextLinux_arm.h b/source/Plugins/Process/Utility/RegisterContextLinux_arm.h
index 7087eb4c3dcc2..c3d41f686dcda 100644
--- a/source/Plugins/Process/Utility/RegisterContextLinux_arm.h
+++ b/source/Plugins/Process/Utility/RegisterContextLinux_arm.h
@@ -12,7 +12,6 @@
 
 #include "lldb/lldb-private.h"
 #include "lldb/Target/RegisterContext.h"
-#include "RegisterContextPOSIX.h"
 #include "RegisterInfoInterface.h"
 
 class RegisterContextLinux_arm
diff --git a/source/Plugins/Process/Utility/RegisterContextLinux_arm64.cpp b/source/Plugins/Process/Utility/RegisterContextLinux_arm64.cpp
index 8c23e39ff013b..a4ab083995f69 100644
--- a/source/Plugins/Process/Utility/RegisterContextLinux_arm64.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextLinux_arm64.cpp
@@ -21,7 +21,7 @@
 #define GPR_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextLinux_arm64::GPR, reg))
 
 #define FPU_OFFSET(idx) ((idx) * 16 + sizeof (RegisterContextLinux_arm64::GPR))
-#define FPU_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextLinux_arm64::FPU, reg))
+#define FPU_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextLinux_arm64::FPU, reg) + sizeof (RegisterContextLinux_arm64::GPR))
 
 #define EXC_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextLinux_arm64::EXC, reg) + sizeof (RegisterContextLinux_arm64::GPR) + sizeof (RegisterContextLinux_arm64::FPU))
 #define DBG_OFFSET_NAME(reg) (LLVM_EXTENSION offsetof (RegisterContextLinux_arm64::DBG, reg) + sizeof (RegisterContextLinux_arm64::GPR) + sizeof (RegisterContextLinux_arm64::FPU) + sizeof (RegisterContextLinux_arm64::EXC))
diff --git a/source/Plugins/Process/Utility/RegisterContextLinux_arm64.h b/source/Plugins/Process/Utility/RegisterContextLinux_arm64.h
index a9a5a0985f25b..3de94b8625835 100644
--- a/source/Plugins/Process/Utility/RegisterContextLinux_arm64.h
+++ b/source/Plugins/Process/Utility/RegisterContextLinux_arm64.h
@@ -12,7 +12,6 @@
 
 #include "lldb/lldb-private.h"
 #include "lldb/Target/RegisterContext.h"
-#include "RegisterContextPOSIX.h"
 #include "RegisterInfoInterface.h"
 
 class RegisterContextLinux_arm64
diff --git a/source/Plugins/Process/Utility/RegisterContextLinux_i386.cpp b/source/Plugins/Process/Utility/RegisterContextLinux_i386.cpp
index 4f6bbc8f8ab83..e39beef428884 100644
--- a/source/Plugins/Process/Utility/RegisterContextLinux_i386.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextLinux_i386.cpp
@@ -26,7 +26,7 @@ struct GPR
     uint32_t es;
     uint32_t fs;
     uint32_t gs;
-    uint32_t orig_ax;
+    uint32_t orig_eax;
     uint32_t eip;
     uint32_t cs;
     uint32_t eflags;
@@ -38,7 +38,8 @@ struct FPR_i386
 {
     uint16_t fctrl;         // FPU Control Word (fcw)
     uint16_t fstat;         // FPU Status Word (fsw)
-    uint16_t ftag;          // FPU Tag Word (ftw)
+    uint8_t ftag;           // FPU Tag Word (ftw)
+    uint8_t reserved_1;     // Reserved
     uint16_t fop;           // Last Instruction Opcode (fop)
     union
     {
@@ -98,6 +99,9 @@ struct UserArea
 RegisterContextLinux_i386::RegisterContextLinux_i386(const ArchSpec &target_arch) :
     RegisterInfoInterface(target_arch)
 {
+    RegisterInfo orig_ax = { "orig_eax", NULL, sizeof(((GPR*)NULL)->orig_eax), (LLVM_EXTENSION offsetof(GPR, orig_eax)), eEncodingUint, \
+              eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL };
+    d_register_infos.push_back(orig_ax);
 }
 
 size_t
@@ -131,3 +135,9 @@ RegisterContextLinux_i386::GetUserRegisterCount () const
 {
     return static_cast<uint32_t> (k_num_user_registers_i386);
 }
+
+const std::vector<lldb_private::RegisterInfo> *
+RegisterContextLinux_i386::GetDynamicRegisterInfoP() const
+{
+    return &d_register_infos;
+}
diff --git a/source/Plugins/Process/Utility/RegisterContextLinux_i386.h b/source/Plugins/Process/Utility/RegisterContextLinux_i386.h
index cb71d7993e172..6c4768f49ac11 100644
--- a/source/Plugins/Process/Utility/RegisterContextLinux_i386.h
+++ b/source/Plugins/Process/Utility/RegisterContextLinux_i386.h
@@ -10,7 +10,7 @@
 #ifndef liblldb_RegisterContextLinux_i386_H_
 #define liblldb_RegisterContextLinux_i386_H_
 
-#include "RegisterContextPOSIX.h"
+#include "RegisterInfoInterface.h"
 
 class RegisterContextLinux_i386
   : public lldb_private::RegisterInfoInterface
@@ -29,6 +29,12 @@ public:
 
     uint32_t
     GetUserRegisterCount () const override;
+
+    const std::vector<lldb_private::RegisterInfo> *
+    GetDynamicRegisterInfoP() const override;
+
+private:
+    std::vector<lldb_private::RegisterInfo> d_register_infos;
 };
 
 #endif
diff --git a/source/Plugins/Process/Utility/RegisterContextLinux_mips.cpp b/source/Plugins/Process/Utility/RegisterContextLinux_mips.cpp
index 4d58b85b56657..1b2281004d267 100644
--- a/source/Plugins/Process/Utility/RegisterContextLinux_mips.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextLinux_mips.cpp
@@ -10,7 +10,7 @@
 #include <vector>
 #include <stddef.h>
 
-// For GDB, GCC and DWARF Register numbers
+// For eh_frame and DWARF Register numbers
 #include "RegisterContextLinux_mips.h"
 
 // Internal codes for mips registers
@@ -29,8 +29,17 @@ using namespace lldb;
 #include "RegisterInfos_mips.h"
 #undef DECLARE_REGISTER_INFOS_MIPS_STRUCT
 
-RegisterContextLinux_mips::RegisterContextLinux_mips(const ArchSpec &target_arch) :
-    RegisterInfoInterface(target_arch)
+uint32_t
+GetUserRegisterInfoCount (bool msa_present)
+{
+    if (msa_present)
+        return static_cast<uint32_t> (k_num_user_registers_mips);
+    return static_cast<uint32_t> (k_num_user_registers_mips - k_num_msa_registers_mips);
+}
+
+RegisterContextLinux_mips::RegisterContextLinux_mips(const ArchSpec &target_arch, bool msa_present) :
+    RegisterInfoInterface(target_arch),
+    m_user_register_count (GetUserRegisterInfoCount (msa_present))
 {
 }
 
@@ -63,5 +72,5 @@ RegisterContextLinux_mips::GetRegisterCount () const
 uint32_t
 RegisterContextLinux_mips::GetUserRegisterCount () const
 {
-    return static_cast<uint32_t> (k_num_user_registers_mips);
+    return static_cast<uint32_t> (m_user_register_count);
 }
diff --git a/source/Plugins/Process/Utility/RegisterContextLinux_mips.h b/source/Plugins/Process/Utility/RegisterContextLinux_mips.h
index bcc2d002c8546..c0bd5ad4f4f9f 100644
--- a/source/Plugins/Process/Utility/RegisterContextLinux_mips.h
+++ b/source/Plugins/Process/Utility/RegisterContextLinux_mips.h
@@ -17,7 +17,7 @@ class RegisterContextLinux_mips
     : public lldb_private::RegisterInfoInterface
 {
 public:
-    RegisterContextLinux_mips(const lldb_private::ArchSpec &target_arch);
+    RegisterContextLinux_mips(const lldb_private::ArchSpec &target_arch, bool msa_present = true);
 
     size_t
     GetGPRSize() const override;
@@ -30,6 +30,9 @@ public:
 
     uint32_t
     GetUserRegisterCount () const override;
+
+private:
+    uint32_t m_user_register_count;
 };
 
 #endif
diff --git a/source/Plugins/Process/Utility/RegisterContextLinux_mips64.cpp b/source/Plugins/Process/Utility/RegisterContextLinux_mips64.cpp
index 7f512f82be803..f2871e3b7352d 100644
--- a/source/Plugins/Process/Utility/RegisterContextLinux_mips64.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextLinux_mips64.cpp
@@ -12,7 +12,7 @@
 #include <vector>
 #include <stddef.h>
 
-// For GDB, GCC and DWARF Register numbers
+// For eh_frame and DWARF Register numbers
 #include "RegisterContextLinux_mips64.h"
 
 // For GP and FP buffers
@@ -75,27 +75,31 @@ GetRegisterInfoCount (const ArchSpec &target_arch)
 }
 
 uint32_t
-GetUserRegisterInfoCount (const ArchSpec &target_arch)
+GetUserRegisterInfoCount (const ArchSpec &target_arch, bool msa_present)
 {
     switch (target_arch.GetMachine())
     {
         case llvm::Triple::mips:
         case llvm::Triple::mipsel:
-            return static_cast<uint32_t> (k_num_user_registers_mips);
+            if (msa_present)
+                return static_cast<uint32_t> (k_num_user_registers_mips);
+            return static_cast<uint32_t> (k_num_user_registers_mips - k_num_msa_registers_mips); 
         case llvm::Triple::mips64el:
         case llvm::Triple::mips64:
-            return static_cast<uint32_t> (k_num_user_registers_mips64);
+            if (msa_present)
+                return static_cast<uint32_t> (k_num_user_registers_mips64);
+            return static_cast<uint32_t> (k_num_user_registers_mips64 - k_num_msa_registers_mips64);
         default:
             assert(false && "Unhandled target architecture.");
             return 0;
     }
 }
 
-RegisterContextLinux_mips64::RegisterContextLinux_mips64(const ArchSpec &target_arch) :
+RegisterContextLinux_mips64::RegisterContextLinux_mips64(const ArchSpec &target_arch, bool msa_present) :
     lldb_private::RegisterInfoInterface(target_arch),
     m_register_info_p (GetRegisterInfoPtr (target_arch)),
     m_register_info_count (GetRegisterInfoCount (target_arch)),
-    m_user_register_count (GetUserRegisterInfoCount (target_arch))
+    m_user_register_count (GetUserRegisterInfoCount (target_arch, msa_present))
 {
 }
 
diff --git a/source/Plugins/Process/Utility/RegisterContextLinux_mips64.h b/source/Plugins/Process/Utility/RegisterContextLinux_mips64.h
index 86c662c52cea3..843328c92e43d 100644
--- a/source/Plugins/Process/Utility/RegisterContextLinux_mips64.h
+++ b/source/Plugins/Process/Utility/RegisterContextLinux_mips64.h
@@ -19,7 +19,7 @@ class RegisterContextLinux_mips64
     : public lldb_private::RegisterInfoInterface
 {
 public:
-    RegisterContextLinux_mips64(const lldb_private::ArchSpec &target_arch);
+    RegisterContextLinux_mips64(const lldb_private::ArchSpec &target_arch, bool msa_present = true);
 
     size_t
     GetGPRSize() const override;
diff --git a/source/Plugins/Process/Utility/RegisterContextLinux_x86_64.cpp b/source/Plugins/Process/Utility/RegisterContextLinux_x86_64.cpp
index c0993b47a1265..78afe72fcfa95 100644
--- a/source/Plugins/Process/Utility/RegisterContextLinux_x86_64.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextLinux_x86_64.cpp
@@ -32,7 +32,7 @@ typedef struct _GPR
     uint64_t rdx;
     uint64_t rsi;
     uint64_t rdi;
-    uint64_t orig_ax;
+    uint64_t orig_rax;
     uint64_t rip;
     uint64_t cs;
     uint64_t rflags;
@@ -171,6 +171,9 @@ RegisterContextLinux_x86_64::RegisterContextLinux_x86_64(const ArchSpec &target_
     m_register_info_count (GetRegisterInfoCount (target_arch)),
     m_user_register_count (GetUserRegisterInfoCount (target_arch))
 {
+    RegisterInfo orig_ax = { "orig_rax", NULL, sizeof(((GPR*)NULL)->orig_rax), (LLVM_EXTENSION offsetof(GPR, orig_rax)), eEncodingUint, \
+              eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL };
+    d_register_infos.push_back(orig_ax);
 }
 
 size_t
@@ -179,6 +182,12 @@ RegisterContextLinux_x86_64::GetGPRSize() const
     return sizeof(GPR);
 }
 
+const std::vector<lldb_private::RegisterInfo> *
+RegisterContextLinux_x86_64::GetDynamicRegisterInfoP() const
+{
+    return &d_register_infos;
+}
+
 const RegisterInfo *
 RegisterContextLinux_x86_64::GetRegisterInfo() const
 {
diff --git a/source/Plugins/Process/Utility/RegisterContextLinux_x86_64.h b/source/Plugins/Process/Utility/RegisterContextLinux_x86_64.h
index 0cdfae9ac9438..ed0b7de9aae8b 100644
--- a/source/Plugins/Process/Utility/RegisterContextLinux_x86_64.h
+++ b/source/Plugins/Process/Utility/RegisterContextLinux_x86_64.h
@@ -10,7 +10,7 @@
 #ifndef liblldb_RegisterContextLinux_x86_64_H_
 #define liblldb_RegisterContextLinux_x86_64_H_
 
-#include "RegisterContextPOSIX.h"
+#include "RegisterInfoInterface.h"
 
 class RegisterContextLinux_x86_64
     : public lldb_private::RegisterInfoInterface
@@ -30,10 +30,15 @@ public:
     uint32_t
     GetUserRegisterCount () const override;
 
+    const std::vector<lldb_private::RegisterInfo> *
+    GetDynamicRegisterInfoP() const override;
+
 private:
     const lldb_private::RegisterInfo *m_register_info_p;
     uint32_t m_register_info_count;
     uint32_t m_user_register_count;
+    std::vector<lldb_private::RegisterInfo> d_register_infos;
+
 };
 
 #endif
diff --git a/source/Plugins/Process/Utility/RegisterContextMacOSXFrameBackchain.h b/source/Plugins/Process/Utility/RegisterContextMacOSXFrameBackchain.h
index 505b8d44a27a3..0ddadbed01e0b 100644
--- a/source/Plugins/Process/Utility/RegisterContextMacOSXFrameBackchain.h
+++ b/source/Plugins/Process/Utility/RegisterContextMacOSXFrameBackchain.h
@@ -22,56 +22,49 @@
 class RegisterContextMacOSXFrameBackchain : public lldb_private::RegisterContext
 {
 public:
-    //------------------------------------------------------------------
-    // Constructors and Destructors
-    //------------------------------------------------------------------
     RegisterContextMacOSXFrameBackchain (lldb_private::Thread &thread,
                                          uint32_t concrete_frame_idx,
                                          const UnwindMacOSXFrameBackchain::Cursor &cursor);
 
-    virtual
-    ~RegisterContextMacOSXFrameBackchain ();
+    ~RegisterContextMacOSXFrameBackchain() override;
 
-    //------------------------------------------------------------------
-    // Subclasses must override these functions
-    //------------------------------------------------------------------
-    virtual void
-    InvalidateAllRegisters ();
+    void
+    InvalidateAllRegisters() override;
 
-    virtual size_t
-    GetRegisterCount ();
+    size_t
+    GetRegisterCount() override;
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex (size_t reg);
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoAtIndex(size_t reg) override;
 
-    virtual size_t
-    GetRegisterSetCount ();
+    size_t
+    GetRegisterSetCount() override;
 
-    virtual const lldb_private::RegisterSet *
-    GetRegisterSet (size_t reg_set);
+    const lldb_private::RegisterSet *
+    GetRegisterSet(size_t reg_set) override;
 
-    virtual bool
-    ReadRegister (const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value);
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &value) override;
 
-    virtual bool
-    WriteRegister (const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value);
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &value) override;
     
-    virtual bool
-    ReadAllRegisterValues (lldb::DataBufferSP &data_sp);
+    bool
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
 
-    virtual bool
-    WriteAllRegisterValues (const lldb::DataBufferSP &data_sp);
+    bool
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
-    virtual uint32_t
-    ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num);
+    uint32_t
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
     
 private:
     UnwindMacOSXFrameBackchain::Cursor m_cursor;
     bool m_cursor_is_valid;
-    //------------------------------------------------------------------
-    // For RegisterContextMacOSXFrameBackchain only
-    //------------------------------------------------------------------
+
     DISALLOW_COPY_AND_ASSIGN (RegisterContextMacOSXFrameBackchain);
 };
 
-#endif  // lldb_RegisterContextMacOSXFrameBackchain_h_
+#endif // lldb_RegisterContextMacOSXFrameBackchain_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextMemory.h b/source/Plugins/Process/Utility/RegisterContextMemory.h
index 9d97dfa723beb..d61aba9543d47 100644
--- a/source/Plugins/Process/Utility/RegisterContextMemory.h
+++ b/source/Plugins/Process/Utility/RegisterContextMemory.h
@@ -25,39 +25,31 @@ class DynamicRegisterInfo;
 class RegisterContextMemory : public lldb_private::RegisterContext
 {
 public:
-    //------------------------------------------------------------------
-    // Constructors and Destructors
-    //------------------------------------------------------------------
     RegisterContextMemory (lldb_private::Thread &thread,
                             uint32_t concrete_frame_idx,
                             DynamicRegisterInfo &reg_info,
                             lldb::addr_t reg_data_addr);
 
-    virtual
-    ~RegisterContextMemory ();
+    ~RegisterContextMemory() override;
 
-    //------------------------------------------------------------------
-    // Subclasses must override these functions
-    //------------------------------------------------------------------
-    virtual void
-    InvalidateAllRegisters ();
+    void
+    InvalidateAllRegisters() override;
 
-    virtual size_t
-    GetRegisterCount ();
+    size_t
+    GetRegisterCount() override;
 
-    virtual const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex (size_t reg);
+    const lldb_private::RegisterInfo *
+    GetRegisterInfoAtIndex(size_t reg) override;
 
-    virtual size_t
-    GetRegisterSetCount ();
+    size_t
+    GetRegisterSetCount() override;
 
-    virtual const lldb_private::RegisterSet *
-    GetRegisterSet (size_t reg_set);
+    const lldb_private::RegisterSet *
+    GetRegisterSet(size_t reg_set) override;
 
-    virtual uint32_t
-    ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num);
+    uint32_t
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
 
-    
     //------------------------------------------------------------------
     // If all of the thread register are in a contiguous buffer in 
     // memory, then the default ReadRegister/WriteRegister and
@@ -66,24 +58,24 @@ public:
     // class and modify the read/write functions as needed.
     //------------------------------------------------------------------
 
-    virtual bool
-    ReadRegister (const lldb_private::RegisterInfo *reg_info, 
-                  lldb_private::RegisterValue &reg_value);
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &reg_value) override;
     
-    virtual bool
-    WriteRegister (const lldb_private::RegisterInfo *reg_info, 
-                   const lldb_private::RegisterValue &reg_value);
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &reg_value) override;
     
-    virtual bool
-    ReadAllRegisterValues (lldb::DataBufferSP &data_sp);
+    bool
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
     
-    virtual bool
-    WriteAllRegisterValues (const lldb::DataBufferSP &data_sp);
+    bool
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
     void
     SetAllRegisterData  (const lldb::DataBufferSP &data_sp);
+
 protected:
-    
     void
     SetAllRegisterValid (bool b);
 
@@ -93,10 +85,7 @@ protected:
     lldb::addr_t m_reg_data_addr; // If this is valid, then we have a register context that is stored in memmory
 
 private:
-    //------------------------------------------------------------------
-    // For RegisterContextMemory only
-    //------------------------------------------------------------------
     DISALLOW_COPY_AND_ASSIGN (RegisterContextMemory);
 };
 
-#endif  // lldb_RegisterContextMemory_h_
+#endif // lldb_RegisterContextMemory_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextPOSIX_arm.cpp b/source/Plugins/Process/Utility/RegisterContextPOSIX_arm.cpp
index d306f86256bc3..029a0e7352ec5 100644
--- a/source/Plugins/Process/Utility/RegisterContextPOSIX_arm.cpp
+++ b/source/Plugins/Process/Utility/RegisterContextPOSIX_arm.cpp
@@ -88,6 +88,54 @@ static const uint32_t g_fpu_regnums_arm[] =
     fpu_s30_arm,
     fpu_s31_arm,
     fpu_fpscr_arm,
+    fpu_d0_arm,
+    fpu_d1_arm,
+    fpu_d2_arm,
+    fpu_d3_arm,
+    fpu_d4_arm,
+    fpu_d5_arm,
+    fpu_d6_arm,
+    fpu_d7_arm,
+    fpu_d8_arm,
+    fpu_d9_arm,
+    fpu_d10_arm,
+    fpu_d11_arm,
+    fpu_d12_arm,
+    fpu_d13_arm,
+    fpu_d14_arm,
+    fpu_d15_arm,
+    fpu_d16_arm,
+    fpu_d17_arm,
+    fpu_d18_arm,
+    fpu_d19_arm,
+    fpu_d20_arm,
+    fpu_d21_arm,
+    fpu_d22_arm,
+    fpu_d23_arm,
+    fpu_d24_arm,
+    fpu_d25_arm,
+    fpu_d26_arm,
+    fpu_d27_arm,
+    fpu_d28_arm,
+    fpu_d29_arm,
+    fpu_d30_arm,
+    fpu_d31_arm,
+    fpu_q0_arm,
+    fpu_q1_arm,
+    fpu_q2_arm,
+    fpu_q3_arm,
+    fpu_q4_arm,
+    fpu_q5_arm,
+    fpu_q6_arm,
+    fpu_q7_arm,
+    fpu_q8_arm,
+    fpu_q9_arm,
+    fpu_q10_arm,
+    fpu_q11_arm,
+    fpu_q12_arm,
+    fpu_q13_arm,
+    fpu_q14_arm,
+    fpu_q15_arm,
     LLDB_INVALID_REGNUM // register sets need to end with this flag
 
 };
diff --git a/source/Plugins/Process/Utility/RegisterContextPOSIX_arm.h b/source/Plugins/Process/Utility/RegisterContextPOSIX_arm.h
index a3a2926262f70..fbbcb94029112 100644
--- a/source/Plugins/Process/Utility/RegisterContextPOSIX_arm.h
+++ b/source/Plugins/Process/Utility/RegisterContextPOSIX_arm.h
@@ -1,4 +1,4 @@
-//===-- RegisterContextPOSIX_arm.h ----------------------------*- C++ -*-===//
+//===-- RegisterContextPOSIX_arm.h ------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,12 +7,17 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef liblldb_RegisterContextPOSIX_arm_H_
-#define liblldb_RegisterContextPOSIX_arm_H_
+#ifndef liblldb_RegisterContextPOSIX_arm_h_
+#define liblldb_RegisterContextPOSIX_arm_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Core/Log.h"
+#include "lldb/Target/RegisterContext.h"
+#include "RegisterInfoInterface.h"
 #include "lldb-arm-register-enums.h"
-#include "RegisterContextPOSIX.h"
 
 class ProcessMonitor;
 
@@ -24,16 +29,16 @@ public:
                             uint32_t concrete_frame_idx,
                             lldb_private::RegisterInfoInterface *register_info);
 
-    ~RegisterContextPOSIX_arm();
+    ~RegisterContextPOSIX_arm() override;
 
     void
     Invalidate();
 
     void
-    InvalidateAllRegisters();
+    InvalidateAllRegisters() override;
 
     size_t
-    GetRegisterCount();
+    GetRegisterCount() override;
 
     virtual size_t
     GetGPRSize();
@@ -45,19 +50,19 @@ public:
     GetRegisterOffset(unsigned reg);
 
     const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex(size_t reg);
+    GetRegisterInfoAtIndex(size_t reg) override;
 
     size_t
-    GetRegisterSetCount();
+    GetRegisterSetCount() override;
 
     const lldb_private::RegisterSet *
-    GetRegisterSet(size_t set);
+    GetRegisterSet(size_t set) override;
 
     const char *
     GetRegisterName(unsigned reg);
 
     uint32_t
-    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num);
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
 
 protected:
     struct RegInfo
@@ -117,5 +122,4 @@ protected:
     virtual bool WriteFPR() = 0;
 };
 
-#endif // #ifndef liblldb_RegisterContextPOSIX_arm_H_
-
+#endif // liblldb_RegisterContextPOSIX_arm_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextPOSIX_arm64.h b/source/Plugins/Process/Utility/RegisterContextPOSIX_arm64.h
index 29e7a7d21e023..225d4f25168ef 100644
--- a/source/Plugins/Process/Utility/RegisterContextPOSIX_arm64.h
+++ b/source/Plugins/Process/Utility/RegisterContextPOSIX_arm64.h
@@ -7,12 +7,17 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef liblldb_RegisterContextPOSIX_arm64_H_
-#define liblldb_RegisterContextPOSIX_arm64_H_
+#ifndef liblldb_RegisterContextPOSIX_arm64_h_
+#define liblldb_RegisterContextPOSIX_arm64_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Core/Log.h"
+#include "lldb/Target/RegisterContext.h"
+#include "RegisterInfoInterface.h"
 #include "lldb-arm64-register-enums.h"
-#include "RegisterContextPOSIX.h"
 
 class ProcessMonitor;
 
@@ -24,16 +29,16 @@ public:
                             uint32_t concrete_frame_idx,
                             lldb_private::RegisterInfoInterface *register_info);
 
-    ~RegisterContextPOSIX_arm64();
+    ~RegisterContextPOSIX_arm64() override;
 
     void
     Invalidate();
 
     void
-    InvalidateAllRegisters();
+    InvalidateAllRegisters() override;
 
     size_t
-    GetRegisterCount();
+    GetRegisterCount() override;
 
     virtual size_t
     GetGPRSize();
@@ -45,19 +50,19 @@ public:
     GetRegisterOffset(unsigned reg);
 
     const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex(size_t reg);
+    GetRegisterInfoAtIndex(size_t reg) override;
 
     size_t
-    GetRegisterSetCount();
+    GetRegisterSetCount() override;
 
     const lldb_private::RegisterSet *
-    GetRegisterSet(size_t set);
+    GetRegisterSet(size_t set) override;
 
     const char *
     GetRegisterName(unsigned reg);
 
     uint32_t
-    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num);
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
 
 protected:
     struct RegInfo
@@ -116,4 +121,4 @@ protected:
     virtual bool WriteFPR() = 0;
 };
 
-#endif // #ifndef liblldb_RegisterContextPOSIX_arm64_H_
+#endif // liblldb_RegisterContextPOSIX_arm64_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextPOSIX_mips64.h b/source/Plugins/Process/Utility/RegisterContextPOSIX_mips64.h
index 612a034669831..07552d8d681d1 100644
--- a/source/Plugins/Process/Utility/RegisterContextPOSIX_mips64.h
+++ b/source/Plugins/Process/Utility/RegisterContextPOSIX_mips64.h
@@ -7,11 +7,16 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef liblldb_RegisterContextPOSIX_mips64_H_
-#define liblldb_RegisterContextPOSIX_mips64_H_
+#ifndef liblldb_RegisterContextPOSIX_mips64_h_
+#define liblldb_RegisterContextPOSIX_mips64_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Core/Log.h"
-#include "RegisterContextPOSIX.h"
+#include "lldb/Target/RegisterContext.h"
+#include "RegisterInfoInterface.h"
 #include "RegisterContext_mips.h"
 #include "lldb-mips-freebsd-register-enums.h"
 
@@ -27,16 +32,16 @@ public:
                             uint32_t concrete_frame_idx,
                             lldb_private::RegisterInfoInterface *register_info);
 
-    ~RegisterContextPOSIX_mips64();
+    ~RegisterContextPOSIX_mips64() override;
 
     void
     Invalidate();
 
     void
-    InvalidateAllRegisters();
+    InvalidateAllRegisters() override;
 
     size_t
-    GetRegisterCount();
+    GetRegisterCount() override;
 
     virtual size_t
     GetGPRSize();
@@ -48,19 +53,19 @@ public:
     GetRegisterOffset(unsigned reg);
 
     const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex(size_t reg);
+    GetRegisterInfoAtIndex(size_t reg) override;
 
     size_t
-    GetRegisterSetCount();
+    GetRegisterSetCount() override;
 
     const lldb_private::RegisterSet *
-    GetRegisterSet(size_t set);
+    GetRegisterSet(size_t set) override;
 
     const char *
     GetRegisterName(unsigned reg);
 
     uint32_t
-    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num);
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
 
 protected:
     uint64_t m_gpr_mips64[k_num_gpr_registers_mips64];         // general purpose registers.
@@ -87,4 +92,4 @@ protected:
     virtual bool WriteFPR() = 0;
 };
 
-#endif // #ifndef liblldb_RegisterContextPOSIX_mips64_H_
+#endif // liblldb_RegisterContextPOSIX_mips64_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextPOSIX_powerpc.h b/source/Plugins/Process/Utility/RegisterContextPOSIX_powerpc.h
index c7a2451d7811c..4168e46ebd9a5 100644
--- a/source/Plugins/Process/Utility/RegisterContextPOSIX_powerpc.h
+++ b/source/Plugins/Process/Utility/RegisterContextPOSIX_powerpc.h
@@ -1,4 +1,4 @@
-//===-- RegisterContextPOSIX_powerpc.h ---------------------------*- C++ -*-===//
+//===-- RegisterContextPOSIX_powerpc.h --------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,11 +7,16 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef liblldb_RegisterContextPOSIX_powerpc_H_
-#define liblldb_RegisterContextPOSIX_powerpc_H_
+#ifndef liblldb_RegisterContextPOSIX_powerpc_h_
+#define liblldb_RegisterContextPOSIX_powerpc_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Core/Log.h"
-#include "RegisterContextPOSIX.h"
+#include "lldb/Target/RegisterContext.h"
+#include "RegisterInfoInterface.h"
 #include "RegisterContext_powerpc.h"
 
 class ProcessMonitor;
@@ -148,16 +153,16 @@ public:
                             uint32_t concrete_frame_idx,
                             lldb_private::RegisterInfoInterface *register_info);
 
-    ~RegisterContextPOSIX_powerpc();
+    ~RegisterContextPOSIX_powerpc() override;
 
     void
     Invalidate();
 
     void
-    InvalidateAllRegisters();
+    InvalidateAllRegisters() override;
 
     size_t
-    GetRegisterCount();
+    GetRegisterCount() override;
 
     virtual size_t
     GetGPRSize();
@@ -169,19 +174,19 @@ public:
     GetRegisterOffset(unsigned reg);
 
     const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex(size_t reg);
+    GetRegisterInfoAtIndex(size_t reg) override;
 
     size_t
-    GetRegisterSetCount();
+    GetRegisterSetCount() override;
 
     const lldb_private::RegisterSet *
-    GetRegisterSet(size_t set);
+    GetRegisterSet(size_t set) override;
 
     const char *
     GetRegisterName(unsigned reg);
 
     uint32_t
-    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num);
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
 
 protected:
     uint64_t m_gpr_powerpc[k_num_gpr_registers_powerpc];         // general purpose registers.
@@ -215,4 +220,4 @@ protected:
     virtual bool WriteVMX() = 0;
 };
 
-#endif // #ifndef liblldb_RegisterContextPOSIX_powerpc_H_
+#endif // liblldb_RegisterContextPOSIX_powerpc_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextPOSIX_x86.h b/source/Plugins/Process/Utility/RegisterContextPOSIX_x86.h
index 0eec1d909c1ac..b4708255a5660 100644
--- a/source/Plugins/Process/Utility/RegisterContextPOSIX_x86.h
+++ b/source/Plugins/Process/Utility/RegisterContextPOSIX_x86.h
@@ -7,13 +7,18 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef liblldb_RegisterContextPOSIX_x86_H_
-#define liblldb_RegisterContextPOSIX_x86_H_
+#ifndef liblldb_RegisterContextPOSIX_x86_h_
+#define liblldb_RegisterContextPOSIX_x86_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Core/Log.h"
-#include "lldb-x86-register-enums.h"
-#include "RegisterContextPOSIX.h"
+#include "lldb/Target/RegisterContext.h"
+#include "RegisterInfoInterface.h"
 #include "RegisterContext_x86.h"
+#include "lldb-x86-register-enums.h"
 
 class ProcessMonitor;
 
@@ -25,16 +30,16 @@ public:
                             uint32_t concrete_frame_idx,
                             lldb_private::RegisterInfoInterface *register_info);
 
-    ~RegisterContextPOSIX_x86();
+    ~RegisterContextPOSIX_x86() override;
 
     void
     Invalidate();
 
     void
-    InvalidateAllRegisters();
+    InvalidateAllRegisters() override;
 
     size_t
-    GetRegisterCount();
+    GetRegisterCount() override;
 
     virtual size_t
     GetGPRSize();
@@ -46,19 +51,19 @@ public:
     GetRegisterOffset(unsigned reg);
 
     const lldb_private::RegisterInfo *
-    GetRegisterInfoAtIndex(size_t reg);
+    GetRegisterInfoAtIndex(size_t reg) override;
 
     size_t
-    GetRegisterSetCount();
+    GetRegisterSetCount() override;
 
     const lldb_private::RegisterSet *
-    GetRegisterSet(size_t set);
+    GetRegisterSet(size_t set) override;
 
     const char *
     GetRegisterName(unsigned reg);
 
     uint32_t
-    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num);
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
 
     //---------------------------------------------------------------------------
     // Note: prefer kernel definitions over user-land
@@ -186,4 +191,4 @@ protected:
     virtual bool WriteFPR() = 0;
 };
 
-#endif // #ifndef liblldb_RegisterContextPOSIX_x86_H_
+#endif // liblldb_RegisterContextPOSIX_x86_h_
diff --git a/source/Plugins/Process/Utility/RegisterContextThreadMemory.h b/source/Plugins/Process/Utility/RegisterContextThreadMemory.h
index 161ef040e651a..b4680de795144 100644
--- a/source/Plugins/Process/Utility/RegisterContextThreadMemory.h
+++ b/source/Plugins/Process/Utility/RegisterContextThreadMemory.h
@@ -10,8 +10,12 @@
 #ifndef lldb_RegisterContextThreadMemory_h_
 #define lldb_RegisterContextThreadMemory_h_
 
+// C Includes
+// C++ Includes
 #include <vector>
 
+// Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-private.h"
 #include "lldb/Target/RegisterContext.h"
 #include "lldb/Symbol/SymbolContext.h"
@@ -24,30 +28,28 @@ public:
     RegisterContextThreadMemory (Thread &thread,
                                  lldb::addr_t register_data_addr);
     
-    virtual ~RegisterContextThreadMemory();
-    //------------------------------------------------------------------
-    // Subclasses must override these functions
-    //------------------------------------------------------------------
-    virtual void
-    InvalidateAllRegisters ();
+    ~RegisterContextThreadMemory() override;
+
+    void
+    InvalidateAllRegisters() override;
     
-    virtual size_t
-    GetRegisterCount ();
+    size_t
+    GetRegisterCount() override;
     
-    virtual const RegisterInfo *
-    GetRegisterInfoAtIndex (size_t reg);
+    const RegisterInfo *
+    GetRegisterInfoAtIndex(size_t reg) override;
     
-    virtual size_t
-    GetRegisterSetCount ();
+    size_t
+    GetRegisterSetCount() override;
     
-    virtual const RegisterSet *
-    GetRegisterSet (size_t reg_set);
+    const RegisterSet *
+    GetRegisterSet(size_t reg_set) override;
     
-    virtual bool
-    ReadRegister (const RegisterInfo *reg_info, RegisterValue &reg_value);
+    bool
+    ReadRegister(const RegisterInfo *reg_info, RegisterValue &reg_value) override;
     
-    virtual bool
-    WriteRegister (const RegisterInfo *reg_info, const RegisterValue &reg_value);
+    bool
+    WriteRegister(const RegisterInfo *reg_info, const RegisterValue &reg_value) override;
     
     // These two functions are used to implement "push" and "pop" of register states.  They are used primarily
     // for expression evaluation, where we need to push a new state (storing the old one in data_sp) and then
@@ -56,48 +58,50 @@ public:
     // may mean e.g. interrupting a thread that is sitting in a kernel trap.  That is a somewhat disruptive operation,
     // so these API's should only be used when this behavior is needed.
     
-    virtual bool
-    ReadAllRegisterValues (lldb::DataBufferSP &data_sp);
+    bool
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
     
-    virtual bool
-    WriteAllRegisterValues (const lldb::DataBufferSP &data_sp);
+    bool
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
     
     bool
     CopyFromRegisterContext (lldb::RegisterContextSP context);
     
-    virtual uint32_t
-    ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num);
-    
-    //------------------------------------------------------------------
-    // Subclasses can override these functions if desired
-    //------------------------------------------------------------------
-    virtual uint32_t
-    NumSupportedHardwareBreakpoints ();
-    
-    virtual uint32_t
-    SetHardwareBreakpoint (lldb::addr_t addr, size_t size);
+    uint32_t
+    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
     
-    virtual bool
-    ClearHardwareBreakpoint (uint32_t hw_idx);
+    uint32_t
+    NumSupportedHardwareBreakpoints() override;
     
-    virtual uint32_t
-    NumSupportedHardwareWatchpoints ();
+    uint32_t
+    SetHardwareBreakpoint(lldb::addr_t addr, size_t size) override;
     
-    virtual uint32_t
-    SetHardwareWatchpoint (lldb::addr_t addr, size_t size, bool read, bool write);
-    
-    virtual bool
-    ClearHardwareWatchpoint (uint32_t hw_index);
+    bool
+    ClearHardwareBreakpoint(uint32_t hw_idx) override;
     
-    virtual bool
-    HardwareSingleStep (bool enable);
+    uint32_t
+    NumSupportedHardwareWatchpoints() override;
     
-    virtual Error
-    ReadRegisterValueFromMemory (const lldb_private::RegisterInfo *reg_info, lldb::addr_t src_addr, uint32_t src_len, RegisterValue &reg_value);
+    uint32_t
+    SetHardwareWatchpoint(lldb::addr_t addr, size_t size, bool read, bool write) override;
     
-    virtual Error
-    WriteRegisterValueToMemory (const lldb_private::RegisterInfo *reg_info, lldb::addr_t dst_addr, uint32_t dst_len, const RegisterValue &reg_value);
+    bool
+    ClearHardwareWatchpoint(uint32_t hw_index) override;
     
+    bool
+    HardwareSingleStep(bool enable) override;
+    
+    Error
+    ReadRegisterValueFromMemory(const lldb_private::RegisterInfo *reg_info,
+                                lldb::addr_t src_addr,
+                                uint32_t src_len,
+                                RegisterValue &reg_value) override;
+    
+    Error
+    WriteRegisterValueToMemory(const lldb_private::RegisterInfo *reg_info,
+                               lldb::addr_t dst_addr, uint32_t dst_len,
+                               const RegisterValue &reg_value) override;
+
 protected:
     void
     UpdateRegisterContext ();
@@ -106,9 +110,11 @@ protected:
     lldb::RegisterContextSP m_reg_ctx_sp;
     lldb::addr_t m_register_data_addr;
     uint32_t m_stop_id;
+
 private:
     DISALLOW_COPY_AND_ASSIGN (RegisterContextThreadMemory);
 };
+
 } // namespace lldb_private
 
-#endif  // lldb_RegisterContextThreadMemory_h_
+#endif // lldb_RegisterContextThreadMemory_h_
diff --git a/source/Plugins/Process/Utility/RegisterContext_mips.h b/source/Plugins/Process/Utility/RegisterContext_mips.h
index de2b4d6dcceee..3603227d5e73c 100644
--- a/source/Plugins/Process/Utility/RegisterContext_mips.h
+++ b/source/Plugins/Process/Utility/RegisterContext_mips.h
@@ -15,455 +15,228 @@
 enum
 {
     // GP Registers
-    gcc_dwarf_zero_mips = 0,
-    gcc_dwarf_r1_mips,
-    gcc_dwarf_r2_mips,
-    gcc_dwarf_r3_mips,
-    gcc_dwarf_r4_mips,
-    gcc_dwarf_r5_mips,
-    gcc_dwarf_r6_mips,
-    gcc_dwarf_r7_mips,
-    gcc_dwarf_r8_mips,
-    gcc_dwarf_r9_mips,
-    gcc_dwarf_r10_mips,
-    gcc_dwarf_r11_mips,
-    gcc_dwarf_r12_mips,
-    gcc_dwarf_r13_mips,
-    gcc_dwarf_r14_mips,
-    gcc_dwarf_r15_mips,
-    gcc_dwarf_r16_mips,
-    gcc_dwarf_r17_mips,
-    gcc_dwarf_r18_mips,
-    gcc_dwarf_r19_mips,
-    gcc_dwarf_r20_mips,
-    gcc_dwarf_r21_mips,
-    gcc_dwarf_r22_mips,
-    gcc_dwarf_r23_mips,
-    gcc_dwarf_r24_mips,
-    gcc_dwarf_r25_mips,
-    gcc_dwarf_r26_mips,
-    gcc_dwarf_r27_mips,
-    gcc_dwarf_gp_mips,
-    gcc_dwarf_sp_mips,
-    gcc_dwarf_r30_mips,
-    gcc_dwarf_ra_mips,
-    gcc_dwarf_sr_mips,
-    gcc_dwarf_lo_mips,
-    gcc_dwarf_hi_mips,
-    gcc_dwarf_bad_mips,
-    gcc_dwarf_cause_mips,
-    gcc_dwarf_pc_mips,
-    gcc_dwarf_f0_mips,
-    gcc_dwarf_f1_mips,
-    gcc_dwarf_f2_mips,
-    gcc_dwarf_f3_mips,
-    gcc_dwarf_f4_mips,
-    gcc_dwarf_f5_mips,
-    gcc_dwarf_f6_mips,
-    gcc_dwarf_f7_mips,
-    gcc_dwarf_f8_mips,
-    gcc_dwarf_f9_mips,
-    gcc_dwarf_f10_mips,
-    gcc_dwarf_f11_mips,
-    gcc_dwarf_f12_mips,
-    gcc_dwarf_f13_mips,
-    gcc_dwarf_f14_mips,
-    gcc_dwarf_f15_mips,
-    gcc_dwarf_f16_mips,
-    gcc_dwarf_f17_mips,
-    gcc_dwarf_f18_mips,
-    gcc_dwarf_f19_mips,
-    gcc_dwarf_f20_mips,
-    gcc_dwarf_f21_mips,
-    gcc_dwarf_f22_mips,
-    gcc_dwarf_f23_mips,
-    gcc_dwarf_f24_mips,
-    gcc_dwarf_f25_mips,
-    gcc_dwarf_f26_mips,
-    gcc_dwarf_f27_mips,
-    gcc_dwarf_f28_mips,
-    gcc_dwarf_f29_mips,
-    gcc_dwarf_f30_mips,
-    gcc_dwarf_f31_mips,
-    gcc_dwarf_fcsr_mips,
-    gcc_dwarf_fir_mips,
-    gcc_dwarf_w0_mips,
-    gcc_dwarf_w1_mips,
-    gcc_dwarf_w2_mips,
-    gcc_dwarf_w3_mips,
-    gcc_dwarf_w4_mips,
-    gcc_dwarf_w5_mips,
-    gcc_dwarf_w6_mips,
-    gcc_dwarf_w7_mips,
-    gcc_dwarf_w8_mips,
-    gcc_dwarf_w9_mips,
-    gcc_dwarf_w10_mips,
-    gcc_dwarf_w11_mips,
-    gcc_dwarf_w12_mips,
-    gcc_dwarf_w13_mips,
-    gcc_dwarf_w14_mips,
-    gcc_dwarf_w15_mips,
-    gcc_dwarf_w16_mips,
-    gcc_dwarf_w17_mips,
-    gcc_dwarf_w18_mips,
-    gcc_dwarf_w19_mips,
-    gcc_dwarf_w20_mips,
-    gcc_dwarf_w21_mips,
-    gcc_dwarf_w22_mips,
-    gcc_dwarf_w23_mips,
-    gcc_dwarf_w24_mips,
-    gcc_dwarf_w25_mips,
-    gcc_dwarf_w26_mips,
-    gcc_dwarf_w27_mips,
-    gcc_dwarf_w28_mips,
-    gcc_dwarf_w29_mips,
-    gcc_dwarf_w30_mips,
-    gcc_dwarf_w31_mips,
-    gcc_dwarf_mcsr_mips,
-    gcc_dwarf_mir_mips,
-    gcc_dwarf_config5_mips,
-    gcc_dwarf_ic_mips,
-    gcc_dwarf_dummy_mips
+    dwarf_zero_mips = 0,
+    dwarf_r1_mips,
+    dwarf_r2_mips,
+    dwarf_r3_mips,
+    dwarf_r4_mips,
+    dwarf_r5_mips,
+    dwarf_r6_mips,
+    dwarf_r7_mips,
+    dwarf_r8_mips,
+    dwarf_r9_mips,
+    dwarf_r10_mips,
+    dwarf_r11_mips,
+    dwarf_r12_mips,
+    dwarf_r13_mips,
+    dwarf_r14_mips,
+    dwarf_r15_mips,
+    dwarf_r16_mips,
+    dwarf_r17_mips,
+    dwarf_r18_mips,
+    dwarf_r19_mips,
+    dwarf_r20_mips,
+    dwarf_r21_mips,
+    dwarf_r22_mips,
+    dwarf_r23_mips,
+    dwarf_r24_mips,
+    dwarf_r25_mips,
+    dwarf_r26_mips,
+    dwarf_r27_mips,
+    dwarf_gp_mips,
+    dwarf_sp_mips,
+    dwarf_r30_mips,
+    dwarf_ra_mips,
+    dwarf_sr_mips,
+    dwarf_lo_mips,
+    dwarf_hi_mips,
+    dwarf_bad_mips,
+    dwarf_cause_mips,
+    dwarf_pc_mips,
+    dwarf_f0_mips,
+    dwarf_f1_mips,
+    dwarf_f2_mips,
+    dwarf_f3_mips,
+    dwarf_f4_mips,
+    dwarf_f5_mips,
+    dwarf_f6_mips,
+    dwarf_f7_mips,
+    dwarf_f8_mips,
+    dwarf_f9_mips,
+    dwarf_f10_mips,
+    dwarf_f11_mips,
+    dwarf_f12_mips,
+    dwarf_f13_mips,
+    dwarf_f14_mips,
+    dwarf_f15_mips,
+    dwarf_f16_mips,
+    dwarf_f17_mips,
+    dwarf_f18_mips,
+    dwarf_f19_mips,
+    dwarf_f20_mips,
+    dwarf_f21_mips,
+    dwarf_f22_mips,
+    dwarf_f23_mips,
+    dwarf_f24_mips,
+    dwarf_f25_mips,
+    dwarf_f26_mips,
+    dwarf_f27_mips,
+    dwarf_f28_mips,
+    dwarf_f29_mips,
+    dwarf_f30_mips,
+    dwarf_f31_mips,
+    dwarf_fcsr_mips,
+    dwarf_fir_mips,
+    dwarf_w0_mips,
+    dwarf_w1_mips,
+    dwarf_w2_mips,
+    dwarf_w3_mips,
+    dwarf_w4_mips,
+    dwarf_w5_mips,
+    dwarf_w6_mips,
+    dwarf_w7_mips,
+    dwarf_w8_mips,
+    dwarf_w9_mips,
+    dwarf_w10_mips,
+    dwarf_w11_mips,
+    dwarf_w12_mips,
+    dwarf_w13_mips,
+    dwarf_w14_mips,
+    dwarf_w15_mips,
+    dwarf_w16_mips,
+    dwarf_w17_mips,
+    dwarf_w18_mips,
+    dwarf_w19_mips,
+    dwarf_w20_mips,
+    dwarf_w21_mips,
+    dwarf_w22_mips,
+    dwarf_w23_mips,
+    dwarf_w24_mips,
+    dwarf_w25_mips,
+    dwarf_w26_mips,
+    dwarf_w27_mips,
+    dwarf_w28_mips,
+    dwarf_w29_mips,
+    dwarf_w30_mips,
+    dwarf_w31_mips,
+    dwarf_mcsr_mips,
+    dwarf_mir_mips,
+    dwarf_config5_mips,
+    dwarf_ic_mips,
+    dwarf_dummy_mips
 };
 
 enum
 {
-    gcc_dwarf_zero_mips64 = 0,
-    gcc_dwarf_r1_mips64,
-    gcc_dwarf_r2_mips64,
-    gcc_dwarf_r3_mips64,
-    gcc_dwarf_r4_mips64,
-    gcc_dwarf_r5_mips64,
-    gcc_dwarf_r6_mips64,
-    gcc_dwarf_r7_mips64,
-    gcc_dwarf_r8_mips64,
-    gcc_dwarf_r9_mips64,
-    gcc_dwarf_r10_mips64,
-    gcc_dwarf_r11_mips64,
-    gcc_dwarf_r12_mips64,
-    gcc_dwarf_r13_mips64,
-    gcc_dwarf_r14_mips64,
-    gcc_dwarf_r15_mips64,
-    gcc_dwarf_r16_mips64,
-    gcc_dwarf_r17_mips64,
-    gcc_dwarf_r18_mips64,
-    gcc_dwarf_r19_mips64,
-    gcc_dwarf_r20_mips64,
-    gcc_dwarf_r21_mips64,
-    gcc_dwarf_r22_mips64,
-    gcc_dwarf_r23_mips64,
-    gcc_dwarf_r24_mips64,
-    gcc_dwarf_r25_mips64,
-    gcc_dwarf_r26_mips64,
-    gcc_dwarf_r27_mips64,
-    gcc_dwarf_gp_mips64,
-    gcc_dwarf_sp_mips64,
-    gcc_dwarf_r30_mips64,
-    gcc_dwarf_ra_mips64,
-    gcc_dwarf_sr_mips64,
-    gcc_dwarf_lo_mips64,
-    gcc_dwarf_hi_mips64,
-    gcc_dwarf_bad_mips64,
-    gcc_dwarf_cause_mips64,
-    gcc_dwarf_pc_mips64,
-    gcc_dwarf_f0_mips64,
-    gcc_dwarf_f1_mips64,
-    gcc_dwarf_f2_mips64,
-    gcc_dwarf_f3_mips64,
-    gcc_dwarf_f4_mips64,
-    gcc_dwarf_f5_mips64,
-    gcc_dwarf_f6_mips64,
-    gcc_dwarf_f7_mips64,
-    gcc_dwarf_f8_mips64,
-    gcc_dwarf_f9_mips64,
-    gcc_dwarf_f10_mips64,
-    gcc_dwarf_f11_mips64,
-    gcc_dwarf_f12_mips64,
-    gcc_dwarf_f13_mips64,
-    gcc_dwarf_f14_mips64,
-    gcc_dwarf_f15_mips64,
-    gcc_dwarf_f16_mips64,
-    gcc_dwarf_f17_mips64,
-    gcc_dwarf_f18_mips64,
-    gcc_dwarf_f19_mips64,
-    gcc_dwarf_f20_mips64,
-    gcc_dwarf_f21_mips64,
-    gcc_dwarf_f22_mips64,
-    gcc_dwarf_f23_mips64,
-    gcc_dwarf_f24_mips64,
-    gcc_dwarf_f25_mips64,
-    gcc_dwarf_f26_mips64,
-    gcc_dwarf_f27_mips64,
-    gcc_dwarf_f28_mips64,
-    gcc_dwarf_f29_mips64,
-    gcc_dwarf_f30_mips64,
-    gcc_dwarf_f31_mips64,
-    gcc_dwarf_fcsr_mips64,
-    gcc_dwarf_fir_mips64,
-    gcc_dwarf_ic_mips64,
-    gcc_dwarf_dummy_mips64,
-    gcc_dwarf_w0_mips64,
-    gcc_dwarf_w1_mips64,
-    gcc_dwarf_w2_mips64,
-    gcc_dwarf_w3_mips64,
-    gcc_dwarf_w4_mips64,
-    gcc_dwarf_w5_mips64,
-    gcc_dwarf_w6_mips64,
-    gcc_dwarf_w7_mips64,
-    gcc_dwarf_w8_mips64,
-    gcc_dwarf_w9_mips64,
-    gcc_dwarf_w10_mips64,
-    gcc_dwarf_w11_mips64,
-    gcc_dwarf_w12_mips64,
-    gcc_dwarf_w13_mips64,
-    gcc_dwarf_w14_mips64,
-    gcc_dwarf_w15_mips64,
-    gcc_dwarf_w16_mips64,
-    gcc_dwarf_w17_mips64,
-    gcc_dwarf_w18_mips64,
-    gcc_dwarf_w19_mips64,
-    gcc_dwarf_w20_mips64,
-    gcc_dwarf_w21_mips64,
-    gcc_dwarf_w22_mips64,
-    gcc_dwarf_w23_mips64,
-    gcc_dwarf_w24_mips64,
-    gcc_dwarf_w25_mips64,
-    gcc_dwarf_w26_mips64,
-    gcc_dwarf_w27_mips64,
-    gcc_dwarf_w28_mips64,
-    gcc_dwarf_w29_mips64,
-    gcc_dwarf_w30_mips64,
-    gcc_dwarf_w31_mips64,
-    gcc_dwarf_mcsr_mips64,
-    gcc_dwarf_mir_mips64,
-    gcc_dwarf_config5_mips64,
-};
-
-// GDB Register numbers (eRegisterKindGDB)
-enum
-{
-    gdb_zero_mips = 0,
-    gdb_r1_mips,
-    gdb_r2_mips,
-    gdb_r3_mips,
-    gdb_r4_mips,
-    gdb_r5_mips,
-    gdb_r6_mips,
-    gdb_r7_mips,
-    gdb_r8_mips,
-    gdb_r9_mips,
-    gdb_r10_mips,
-    gdb_r11_mips,
-    gdb_r12_mips,
-    gdb_r13_mips,
-    gdb_r14_mips,
-    gdb_r15_mips,
-    gdb_r16_mips,
-    gdb_r17_mips,
-    gdb_r18_mips,
-    gdb_r19_mips,
-    gdb_r20_mips,
-    gdb_r21_mips,
-    gdb_r22_mips,
-    gdb_r23_mips,
-    gdb_r24_mips,
-    gdb_r25_mips,
-    gdb_r26_mips,
-    gdb_r27_mips,
-    gdb_gp_mips,
-    gdb_sp_mips,
-    gdb_r30_mips,
-    gdb_ra_mips,
-    gdb_sr_mips,
-    gdb_lo_mips,
-    gdb_hi_mips,
-    gdb_bad_mips,
-    gdb_cause_mips,
-    gdb_pc_mips,
-    gdb_f0_mips,
-    gdb_f1_mips,
-    gdb_f2_mips,
-    gdb_f3_mips,
-    gdb_f4_mips,
-    gdb_f5_mips,
-    gdb_f6_mips,
-    gdb_f7_mips,
-    gdb_f8_mips,
-    gdb_f9_mips,
-    gdb_f10_mips,
-    gdb_f11_mips,
-    gdb_f12_mips,
-    gdb_f13_mips,
-    gdb_f14_mips,
-    gdb_f15_mips,
-    gdb_f16_mips,
-    gdb_f17_mips,
-    gdb_f18_mips,
-    gdb_f19_mips,
-    gdb_f20_mips,
-    gdb_f21_mips,
-    gdb_f22_mips,
-    gdb_f23_mips,
-    gdb_f24_mips,
-    gdb_f25_mips,
-    gdb_f26_mips,
-    gdb_f27_mips,
-    gdb_f28_mips,
-    gdb_f29_mips,
-    gdb_f30_mips,
-    gdb_f31_mips,
-    gdb_fcsr_mips,
-    gdb_fir_mips,
-    gdb_w0_mips,
-    gdb_w1_mips,
-    gdb_w2_mips,
-    gdb_w3_mips,
-    gdb_w4_mips,
-    gdb_w5_mips,
-    gdb_w6_mips,
-    gdb_w7_mips,
-    gdb_w8_mips,
-    gdb_w9_mips,
-    gdb_w10_mips,
-    gdb_w11_mips,
-    gdb_w12_mips,
-    gdb_w13_mips,
-    gdb_w14_mips,
-    gdb_w15_mips,
-    gdb_w16_mips,
-    gdb_w17_mips,
-    gdb_w18_mips,
-    gdb_w19_mips,
-    gdb_w20_mips,
-    gdb_w21_mips,
-    gdb_w22_mips,
-    gdb_w23_mips,
-    gdb_w24_mips,
-    gdb_w25_mips,
-    gdb_w26_mips,
-    gdb_w27_mips,
-    gdb_w28_mips,
-    gdb_w29_mips,
-    gdb_w30_mips,
-    gdb_w31_mips,
-    gdb_mcsr_mips,
-    gdb_mir_mips,
-    gdb_config5_mips,
-    gdb_ic_mips,
-    gdb_dummy_mips
-};
-
-enum
-{
-    gdb_zero_mips64 = 0,
-    gdb_r1_mips64,
-    gdb_r2_mips64,
-    gdb_r3_mips64,
-    gdb_r4_mips64,
-    gdb_r5_mips64,
-    gdb_r6_mips64,
-    gdb_r7_mips64,
-    gdb_r8_mips64,
-    gdb_r9_mips64,
-    gdb_r10_mips64,
-    gdb_r11_mips64,
-    gdb_r12_mips64,
-    gdb_r13_mips64,
-    gdb_r14_mips64,
-    gdb_r15_mips64,
-    gdb_r16_mips64,
-    gdb_r17_mips64,
-    gdb_r18_mips64,
-    gdb_r19_mips64,
-    gdb_r20_mips64,
-    gdb_r21_mips64,
-    gdb_r22_mips64,
-    gdb_r23_mips64,
-    gdb_r24_mips64,
-    gdb_r25_mips64,
-    gdb_r26_mips64,
-    gdb_r27_mips64,
-    gdb_gp_mips64,
-    gdb_sp_mips64,
-    gdb_r30_mips64,
-    gdb_ra_mips64,
-    gdb_sr_mips64,
-    gdb_lo_mips64,
-    gdb_hi_mips64,
-    gdb_bad_mips64,
-    gdb_cause_mips64,
-    gdb_pc_mips64,
-    gdb_f0_mips64,
-    gdb_f1_mips64,
-    gdb_f2_mips64,
-    gdb_f3_mips64,
-    gdb_f4_mips64,
-    gdb_f5_mips64,
-    gdb_f6_mips64,
-    gdb_f7_mips64,
-    gdb_f8_mips64,
-    gdb_f9_mips64,
-    gdb_f10_mips64,
-    gdb_f11_mips64,
-    gdb_f12_mips64,
-    gdb_f13_mips64,
-    gdb_f14_mips64,
-    gdb_f15_mips64,
-    gdb_f16_mips64,
-    gdb_f17_mips64,
-    gdb_f18_mips64,
-    gdb_f19_mips64,
-    gdb_f20_mips64,
-    gdb_f21_mips64,
-    gdb_f22_mips64,
-    gdb_f23_mips64,
-    gdb_f24_mips64,
-    gdb_f25_mips64,
-    gdb_f26_mips64,
-    gdb_f27_mips64,
-    gdb_f28_mips64,
-    gdb_f29_mips64,
-    gdb_f30_mips64,
-    gdb_f31_mips64,
-    gdb_fcsr_mips64,
-    gdb_fir_mips64,
-    gdb_ic_mips64,
-    gdb_dummy_mips64,
-    gdb_w0_mips64,
-    gdb_w1_mips64,
-    gdb_w2_mips64,
-    gdb_w3_mips64,
-    gdb_w4_mips64,
-    gdb_w5_mips64,
-    gdb_w6_mips64,
-    gdb_w7_mips64,
-    gdb_w8_mips64,
-    gdb_w9_mips64,
-    gdb_w10_mips64,
-    gdb_w11_mips64,
-    gdb_w12_mips64,
-    gdb_w13_mips64,
-    gdb_w14_mips64,
-    gdb_w15_mips64,
-    gdb_w16_mips64,
-    gdb_w17_mips64,
-    gdb_w18_mips64,
-    gdb_w19_mips64,
-    gdb_w20_mips64,
-    gdb_w21_mips64,
-    gdb_w22_mips64,
-    gdb_w23_mips64,
-    gdb_w24_mips64,
-    gdb_w25_mips64,
-    gdb_w26_mips64,
-    gdb_w27_mips64,
-    gdb_w28_mips64,
-    gdb_w29_mips64,
-    gdb_w30_mips64,
-    gdb_w31_mips64,
-    gdb_mcsr_mips64,
-    gdb_mir_mips64,
-    gdb_config5_mips64,
+    dwarf_zero_mips64 = 0,
+    dwarf_r1_mips64,
+    dwarf_r2_mips64,
+    dwarf_r3_mips64,
+    dwarf_r4_mips64,
+    dwarf_r5_mips64,
+    dwarf_r6_mips64,
+    dwarf_r7_mips64,
+    dwarf_r8_mips64,
+    dwarf_r9_mips64,
+    dwarf_r10_mips64,
+    dwarf_r11_mips64,
+    dwarf_r12_mips64,
+    dwarf_r13_mips64,
+    dwarf_r14_mips64,
+    dwarf_r15_mips64,
+    dwarf_r16_mips64,
+    dwarf_r17_mips64,
+    dwarf_r18_mips64,
+    dwarf_r19_mips64,
+    dwarf_r20_mips64,
+    dwarf_r21_mips64,
+    dwarf_r22_mips64,
+    dwarf_r23_mips64,
+    dwarf_r24_mips64,
+    dwarf_r25_mips64,
+    dwarf_r26_mips64,
+    dwarf_r27_mips64,
+    dwarf_gp_mips64,
+    dwarf_sp_mips64,
+    dwarf_r30_mips64,
+    dwarf_ra_mips64,
+    dwarf_sr_mips64,
+    dwarf_lo_mips64,
+    dwarf_hi_mips64,
+    dwarf_bad_mips64,
+    dwarf_cause_mips64,
+    dwarf_pc_mips64,
+    dwarf_f0_mips64,
+    dwarf_f1_mips64,
+    dwarf_f2_mips64,
+    dwarf_f3_mips64,
+    dwarf_f4_mips64,
+    dwarf_f5_mips64,
+    dwarf_f6_mips64,
+    dwarf_f7_mips64,
+    dwarf_f8_mips64,
+    dwarf_f9_mips64,
+    dwarf_f10_mips64,
+    dwarf_f11_mips64,
+    dwarf_f12_mips64,
+    dwarf_f13_mips64,
+    dwarf_f14_mips64,
+    dwarf_f15_mips64,
+    dwarf_f16_mips64,
+    dwarf_f17_mips64,
+    dwarf_f18_mips64,
+    dwarf_f19_mips64,
+    dwarf_f20_mips64,
+    dwarf_f21_mips64,
+    dwarf_f22_mips64,
+    dwarf_f23_mips64,
+    dwarf_f24_mips64,
+    dwarf_f25_mips64,
+    dwarf_f26_mips64,
+    dwarf_f27_mips64,
+    dwarf_f28_mips64,
+    dwarf_f29_mips64,
+    dwarf_f30_mips64,
+    dwarf_f31_mips64,
+    dwarf_fcsr_mips64,
+    dwarf_fir_mips64,
+    dwarf_ic_mips64,
+    dwarf_dummy_mips64,
+    dwarf_w0_mips64,
+    dwarf_w1_mips64,
+    dwarf_w2_mips64,
+    dwarf_w3_mips64,
+    dwarf_w4_mips64,
+    dwarf_w5_mips64,
+    dwarf_w6_mips64,
+    dwarf_w7_mips64,
+    dwarf_w8_mips64,
+    dwarf_w9_mips64,
+    dwarf_w10_mips64,
+    dwarf_w11_mips64,
+    dwarf_w12_mips64,
+    dwarf_w13_mips64,
+    dwarf_w14_mips64,
+    dwarf_w15_mips64,
+    dwarf_w16_mips64,
+    dwarf_w17_mips64,
+    dwarf_w18_mips64,
+    dwarf_w19_mips64,
+    dwarf_w20_mips64,
+    dwarf_w21_mips64,
+    dwarf_w22_mips64,
+    dwarf_w23_mips64,
+    dwarf_w24_mips64,
+    dwarf_w25_mips64,
+    dwarf_w26_mips64,
+    dwarf_w27_mips64,
+    dwarf_w28_mips64,
+    dwarf_w29_mips64,
+    dwarf_w30_mips64,
+    dwarf_w31_mips64,
+    dwarf_mcsr_mips64,
+    dwarf_mir_mips64,
+    dwarf_config5_mips64,
 };
 
 struct IOVEC_mips
diff --git a/source/Plugins/Process/Utility/RegisterContext_powerpc.h b/source/Plugins/Process/Utility/RegisterContext_powerpc.h
index 7438b88971b3e..2e3053cf37bc2 100644
--- a/source/Plugins/Process/Utility/RegisterContext_powerpc.h
+++ b/source/Plugins/Process/Utility/RegisterContext_powerpc.h
@@ -10,223 +10,114 @@
 #ifndef liblldb_RegisterContext_powerpc_H_
 #define liblldb_RegisterContext_powerpc_H_
 
-// GCC and DWARF Register numbers (eRegisterKindGCC & eRegisterKindDWARF)
+// eh_frame and DWARF Register numbers (eRegisterKindEHFrame & eRegisterKindDWARF)
 enum
 {
-    gcc_dwarf_r0_powerpc = 0,
-    gcc_dwarf_r1_powerpc,
-    gcc_dwarf_r2_powerpc,
-    gcc_dwarf_r3_powerpc,
-    gcc_dwarf_r4_powerpc,
-    gcc_dwarf_r5_powerpc,
-    gcc_dwarf_r6_powerpc,
-    gcc_dwarf_r7_powerpc,
-    gcc_dwarf_r8_powerpc,
-    gcc_dwarf_r9_powerpc,
-    gcc_dwarf_r10_powerpc,
-    gcc_dwarf_r11_powerpc,
-    gcc_dwarf_r12_powerpc,
-    gcc_dwarf_r13_powerpc,
-    gcc_dwarf_r14_powerpc,
-    gcc_dwarf_r15_powerpc,
-    gcc_dwarf_r16_powerpc,
-    gcc_dwarf_r17_powerpc,
-    gcc_dwarf_r18_powerpc,
-    gcc_dwarf_r19_powerpc,
-    gcc_dwarf_r20_powerpc,
-    gcc_dwarf_r21_powerpc,
-    gcc_dwarf_r22_powerpc,
-    gcc_dwarf_r23_powerpc,
-    gcc_dwarf_r24_powerpc,
-    gcc_dwarf_r25_powerpc,
-    gcc_dwarf_r26_powerpc,
-    gcc_dwarf_r27_powerpc,
-    gcc_dwarf_r28_powerpc,
-    gcc_dwarf_r29_powerpc,
-    gcc_dwarf_r30_powerpc,
-    gcc_dwarf_r31_powerpc,
-    gcc_dwarf_f0_powerpc,
-    gcc_dwarf_f1_powerpc,
-    gcc_dwarf_f2_powerpc,
-    gcc_dwarf_f3_powerpc,
-    gcc_dwarf_f4_powerpc,
-    gcc_dwarf_f5_powerpc,
-    gcc_dwarf_f6_powerpc,
-    gcc_dwarf_f7_powerpc,
-    gcc_dwarf_f8_powerpc,
-    gcc_dwarf_f9_powerpc,
-    gcc_dwarf_f10_powerpc,
-    gcc_dwarf_f11_powerpc,
-    gcc_dwarf_f12_powerpc,
-    gcc_dwarf_f13_powerpc,
-    gcc_dwarf_f14_powerpc,
-    gcc_dwarf_f15_powerpc,
-    gcc_dwarf_f16_powerpc,
-    gcc_dwarf_f17_powerpc,
-    gcc_dwarf_f18_powerpc,
-    gcc_dwarf_f19_powerpc,
-    gcc_dwarf_f20_powerpc,
-    gcc_dwarf_f21_powerpc,
-    gcc_dwarf_f22_powerpc,
-    gcc_dwarf_f23_powerpc,
-    gcc_dwarf_f24_powerpc,
-    gcc_dwarf_f25_powerpc,
-    gcc_dwarf_f26_powerpc,
-    gcc_dwarf_f27_powerpc,
-    gcc_dwarf_f28_powerpc,
-    gcc_dwarf_f29_powerpc,
-    gcc_dwarf_f30_powerpc,
-    gcc_dwarf_f31_powerpc,
-    gcc_dwarf_cr_powerpc,
-    gcc_dwarf_fpscr_powerpc,
-    gcc_dwarf_msr_powerpc,
-    gcc_dwarf_vscr_powerpc,
-    gcc_dwarf_xer_powerpc = 101,
-    gcc_dwarf_lr_powerpc = 108,
-    gcc_dwarf_ctr_powerpc,
-    gcc_dwarf_pc_powerpc,
-    gcc_dwarf_vrsave_powerpc = 356,
-    gcc_dwarf_v0_powerpc = 1124,
-    gcc_dwarf_v1_powerpc,
-    gcc_dwarf_v2_powerpc,
-    gcc_dwarf_v3_powerpc,
-    gcc_dwarf_v4_powerpc,
-    gcc_dwarf_v5_powerpc,
-    gcc_dwarf_v6_powerpc,
-    gcc_dwarf_v7_powerpc,
-    gcc_dwarf_v8_powerpc,
-    gcc_dwarf_v9_powerpc,
-    gcc_dwarf_v10_powerpc,
-    gcc_dwarf_v11_powerpc,
-    gcc_dwarf_v12_powerpc,
-    gcc_dwarf_v13_powerpc,
-    gcc_dwarf_v14_powerpc,
-    gcc_dwarf_v15_powerpc,
-    gcc_dwarf_v16_powerpc,
-    gcc_dwarf_v17_powerpc,
-    gcc_dwarf_v18_powerpc,
-    gcc_dwarf_v19_powerpc,
-    gcc_dwarf_v20_powerpc,
-    gcc_dwarf_v21_powerpc,
-    gcc_dwarf_v22_powerpc,
-    gcc_dwarf_v23_powerpc,
-    gcc_dwarf_v24_powerpc,
-    gcc_dwarf_v25_powerpc,
-    gcc_dwarf_v26_powerpc,
-    gcc_dwarf_v27_powerpc,
-    gcc_dwarf_v28_powerpc,
-    gcc_dwarf_v29_powerpc,
-    gcc_dwarf_v30_powerpc,
-    gcc_dwarf_v31_powerpc,
-};
-
-// GDB Register numbers (eRegisterKindGDB)
-enum
-{
-    gdb_r0_powerpc = 0,
-    gdb_r1_powerpc,
-    gdb_r2_powerpc,
-    gdb_r3_powerpc,
-    gdb_r4_powerpc,
-    gdb_r5_powerpc,
-    gdb_r6_powerpc,
-    gdb_r7_powerpc,
-    gdb_r8_powerpc,
-    gdb_r9_powerpc,
-    gdb_r10_powerpc,
-    gdb_r11_powerpc,
-    gdb_r12_powerpc,
-    gdb_r13_powerpc,
-    gdb_r14_powerpc,
-    gdb_r15_powerpc,
-    gdb_r16_powerpc,
-    gdb_r17_powerpc,
-    gdb_r18_powerpc,
-    gdb_r19_powerpc,
-    gdb_r20_powerpc,
-    gdb_r21_powerpc,
-    gdb_r22_powerpc,
-    gdb_r23_powerpc,
-    gdb_r24_powerpc,
-    gdb_r25_powerpc,
-    gdb_r26_powerpc,
-    gdb_r27_powerpc,
-    gdb_r28_powerpc,
-    gdb_r29_powerpc,
-    gdb_r30_powerpc,
-    gdb_r31_powerpc,
-    gdb_f0_powerpc,
-    gdb_f1_powerpc,
-    gdb_f2_powerpc,
-    gdb_f3_powerpc,
-    gdb_f4_powerpc,
-    gdb_f5_powerpc,
-    gdb_f6_powerpc,
-    gdb_f7_powerpc,
-    gdb_f8_powerpc,
-    gdb_f9_powerpc,
-    gdb_f10_powerpc,
-    gdb_f11_powerpc,
-    gdb_f12_powerpc,
-    gdb_f13_powerpc,
-    gdb_f14_powerpc,
-    gdb_f15_powerpc,
-    gdb_f16_powerpc,
-    gdb_f17_powerpc,
-    gdb_f18_powerpc,
-    gdb_f19_powerpc,
-    gdb_f20_powerpc,
-    gdb_f21_powerpc,
-    gdb_f22_powerpc,
-    gdb_f23_powerpc,
-    gdb_f24_powerpc,
-    gdb_f25_powerpc,
-    gdb_f26_powerpc,
-    gdb_f27_powerpc,
-    gdb_f28_powerpc,
-    gdb_f29_powerpc,
-    gdb_f30_powerpc,
-    gdb_f31_powerpc,
-    gdb_pc_powerpc,
-    gdb_cr_powerpc = 66,
-    gdb_lr_powerpc,
-    gdb_ctr_powerpc,
-    gdb_xer_powerpc,
-    gdb_fpscr_powerpc,
-    gdb_v0_powerpc = 106,
-    gdb_v1_powerpc,
-    gdb_v2_powerpc,
-    gdb_v3_powerpc,
-    gdb_v4_powerpc,
-    gdb_v5_powerpc,
-    gdb_v6_powerpc,
-    gdb_v7_powerpc,
-    gdb_v8_powerpc,
-    gdb_v9_powerpc,
-    gdb_v10_powerpc,
-    gdb_v11_powerpc,
-    gdb_v12_powerpc,
-    gdb_v13_powerpc,
-    gdb_v14_powerpc,
-    gdb_v15_powerpc,
-    gdb_v16_powerpc,
-    gdb_v17_powerpc,
-    gdb_v18_powerpc,
-    gdb_v19_powerpc,
-    gdb_v20_powerpc,
-    gdb_v21_powerpc,
-    gdb_v22_powerpc,
-    gdb_v23_powerpc,
-    gdb_v24_powerpc,
-    gdb_v25_powerpc,
-    gdb_v26_powerpc,
-    gdb_v27_powerpc,
-    gdb_v28_powerpc,
-    gdb_v29_powerpc,
-    gdb_v30_powerpc,
-    gdb_v31_powerpc,
-    gdb_vscr_powerpc,
-    gdb_vrsave_powerpc,
+    dwarf_r0_powerpc = 0,
+    dwarf_r1_powerpc,
+    dwarf_r2_powerpc,
+    dwarf_r3_powerpc,
+    dwarf_r4_powerpc,
+    dwarf_r5_powerpc,
+    dwarf_r6_powerpc,
+    dwarf_r7_powerpc,
+    dwarf_r8_powerpc,
+    dwarf_r9_powerpc,
+    dwarf_r10_powerpc,
+    dwarf_r11_powerpc,
+    dwarf_r12_powerpc,
+    dwarf_r13_powerpc,
+    dwarf_r14_powerpc,
+    dwarf_r15_powerpc,
+    dwarf_r16_powerpc,
+    dwarf_r17_powerpc,
+    dwarf_r18_powerpc,
+    dwarf_r19_powerpc,
+    dwarf_r20_powerpc,
+    dwarf_r21_powerpc,
+    dwarf_r22_powerpc,
+    dwarf_r23_powerpc,
+    dwarf_r24_powerpc,
+    dwarf_r25_powerpc,
+    dwarf_r26_powerpc,
+    dwarf_r27_powerpc,
+    dwarf_r28_powerpc,
+    dwarf_r29_powerpc,
+    dwarf_r30_powerpc,
+    dwarf_r31_powerpc,
+    dwarf_f0_powerpc,
+    dwarf_f1_powerpc,
+    dwarf_f2_powerpc,
+    dwarf_f3_powerpc,
+    dwarf_f4_powerpc,
+    dwarf_f5_powerpc,
+    dwarf_f6_powerpc,
+    dwarf_f7_powerpc,
+    dwarf_f8_powerpc,
+    dwarf_f9_powerpc,
+    dwarf_f10_powerpc,
+    dwarf_f11_powerpc,
+    dwarf_f12_powerpc,
+    dwarf_f13_powerpc,
+    dwarf_f14_powerpc,
+    dwarf_f15_powerpc,
+    dwarf_f16_powerpc,
+    dwarf_f17_powerpc,
+    dwarf_f18_powerpc,
+    dwarf_f19_powerpc,
+    dwarf_f20_powerpc,
+    dwarf_f21_powerpc,
+    dwarf_f22_powerpc,
+    dwarf_f23_powerpc,
+    dwarf_f24_powerpc,
+    dwarf_f25_powerpc,
+    dwarf_f26_powerpc,
+    dwarf_f27_powerpc,
+    dwarf_f28_powerpc,
+    dwarf_f29_powerpc,
+    dwarf_f30_powerpc,
+    dwarf_f31_powerpc,
+    dwarf_cr_powerpc,
+    dwarf_fpscr_powerpc,
+    dwarf_msr_powerpc,
+    dwarf_vscr_powerpc,
+    dwarf_xer_powerpc = 101,
+    dwarf_lr_powerpc = 108,
+    dwarf_ctr_powerpc,
+    dwarf_pc_powerpc,
+    dwarf_vrsave_powerpc = 356,
+    dwarf_v0_powerpc = 1124,
+    dwarf_v1_powerpc,
+    dwarf_v2_powerpc,
+    dwarf_v3_powerpc,
+    dwarf_v4_powerpc,
+    dwarf_v5_powerpc,
+    dwarf_v6_powerpc,
+    dwarf_v7_powerpc,
+    dwarf_v8_powerpc,
+    dwarf_v9_powerpc,
+    dwarf_v10_powerpc,
+    dwarf_v11_powerpc,
+    dwarf_v12_powerpc,
+    dwarf_v13_powerpc,
+    dwarf_v14_powerpc,
+    dwarf_v15_powerpc,
+    dwarf_v16_powerpc,
+    dwarf_v17_powerpc,
+    dwarf_v18_powerpc,
+    dwarf_v19_powerpc,
+    dwarf_v20_powerpc,
+    dwarf_v21_powerpc,
+    dwarf_v22_powerpc,
+    dwarf_v23_powerpc,
+    dwarf_v24_powerpc,
+    dwarf_v25_powerpc,
+    dwarf_v26_powerpc,
+    dwarf_v27_powerpc,
+    dwarf_v28_powerpc,
+    dwarf_v29_powerpc,
+    dwarf_v30_powerpc,
+    dwarf_v31_powerpc,
 };
 
 #endif // liblldb_RegisterContext_powerpc_H_
diff --git a/source/Plugins/Process/Utility/RegisterContext_x86.h b/source/Plugins/Process/Utility/RegisterContext_x86.h
index 6b3f6fb43e331..252f1253a0869 100644
--- a/source/Plugins/Process/Utility/RegisterContext_x86.h
+++ b/source/Plugins/Process/Utility/RegisterContext_x86.h
@@ -11,67 +11,56 @@
 #define liblldb_RegisterContext_x86_H_
 
 //---------------------------------------------------------------------------
-// i386 gcc, dwarf, gdb enums
+// i386 ehframe, dwarf regnums
 //---------------------------------------------------------------------------
 
-// Register numbers seen in eh_frame (eRegisterKindGCC)
+// Register numbers seen in eh_frame (eRegisterKindEHFrame) on i386 systems (non-Darwin)
 //
-// From Jason Molenda: "gcc registers" is the register numbering used in the eh_frame
-// CFI.  The only registers that are described in eh_frame CFI are those that are
-// preserved across function calls aka callee-saved aka non-volatile.  And none
-// of the floating point registers on x86 are preserved across function calls.
-//
-// The only reason there is a "gcc register" and a "dwarf register" is because of a
-// mistake years and years ago with i386 where they got esp and ebp
-// backwards when they emitted the eh_frame instructions.  Once there were
-// binaries In The Wild using the reversed numbering, we had to stick with it
-// forever.
 enum
 {
-    // 2nd parameter in DwarfRegNum() is regnum for exception handling on x86-32.
-    // See http://llvm.org/docs/WritingAnLLVMBackend.html#defining-a-register
-    gcc_eax_i386 = 0,
-    gcc_ecx_i386,
-    gcc_edx_i386,
-    gcc_ebx_i386,
+    ehframe_eax_i386 = 0,
+    ehframe_ecx_i386,
+    ehframe_edx_i386,
+    ehframe_ebx_i386,
 
     // on Darwin esp & ebp are reversed in the eh_frame section for i386 (versus dwarf's reg numbering).
     // To be specific:
     //    i386+darwin eh_frame:        4 is ebp, 5 is esp
     //    i386+everyone else eh_frame: 4 is esp, 5 is ebp
     //    i386 dwarf:                  4 is esp, 5 is ebp
-    // lldb will get the darwin-specific eh_frame reg numberings from debugserver instead of here so we
-    // only encode the 4 == esp, 5 == ebp numbers in this generic header.
-    gcc_esp_i386,
-    gcc_ebp_i386,  
-    gcc_esi_i386,
-    gcc_edi_i386,
-    gcc_eip_i386,
-    gcc_eflags_i386,
-    gcc_st0_i386 = 12,
-    gcc_st1_i386,
-    gcc_st2_i386,
-    gcc_st3_i386,
-    gcc_st4_i386,
-    gcc_st5_i386,
-    gcc_st6_i386,
-    gcc_st7_i386,
-    gcc_xmm0_i386 = 21,
-    gcc_xmm1_i386,
-    gcc_xmm2_i386,
-    gcc_xmm3_i386,
-    gcc_xmm4_i386,
-    gcc_xmm5_i386,
-    gcc_xmm6_i386,
-    gcc_xmm7_i386,
-    gcc_mm0_i386 = 29,
-    gcc_mm1_i386,
-    gcc_mm2_i386,
-    gcc_mm3_i386,
-    gcc_mm4_i386,
-    gcc_mm5_i386,
-    gcc_mm6_i386,
-    gcc_mm7_i386,
+    // lldb will get the darwin-specific eh_frame reg numberings from debugserver, or the ABI, so we
+    // only encode the generally correct 4 == esp, 5 == ebp numbers in this generic header.
+
+    ehframe_esp_i386,
+    ehframe_ebp_i386,  
+    ehframe_esi_i386,
+    ehframe_edi_i386,
+    ehframe_eip_i386,
+    ehframe_eflags_i386,
+    ehframe_st0_i386 = 12,
+    ehframe_st1_i386,
+    ehframe_st2_i386,
+    ehframe_st3_i386,
+    ehframe_st4_i386,
+    ehframe_st5_i386,
+    ehframe_st6_i386,
+    ehframe_st7_i386,
+    ehframe_xmm0_i386 = 21,
+    ehframe_xmm1_i386,
+    ehframe_xmm2_i386,
+    ehframe_xmm3_i386,
+    ehframe_xmm4_i386,
+    ehframe_xmm5_i386,
+    ehframe_xmm6_i386,
+    ehframe_xmm7_i386,
+    ehframe_mm0_i386 = 29,
+    ehframe_mm1_i386,
+    ehframe_mm2_i386,
+    ehframe_mm3_i386,
+    ehframe_mm4_i386,
+    ehframe_mm5_i386,
+    ehframe_mm6_i386,
+    ehframe_mm7_i386,
 };
 
 // DWARF register numbers (eRegisterKindDWARF)
@@ -130,258 +119,109 @@ enum
     //  then differentiate based on size of the register.
 };
 
-// Register numbers GDB uses (eRegisterKindGDB)
-//
-// From Jason Molenda: The "gdb numbers" are what you would see in the stabs debug format.
-enum
-{
-    gdb_eax_i386,
-    gdb_ecx_i386,
-    gdb_edx_i386,
-    gdb_ebx_i386,
-    gdb_esp_i386,
-    gdb_ebp_i386,
-    gdb_esi_i386,
-    gdb_edi_i386,
-    gdb_eip_i386,
-    gdb_eflags_i386,
-    gdb_cs_i386,
-    gdb_ss_i386,
-    gdb_ds_i386,
-    gdb_es_i386,
-    gdb_fs_i386,
-    gdb_gs_i386,
-    gdb_st0_i386 = 16,
-    gdb_st1_i386,
-    gdb_st2_i386,
-    gdb_st3_i386,
-    gdb_st4_i386,
-    gdb_st5_i386,
-    gdb_st6_i386,
-    gdb_st7_i386,
-    gdb_fctrl_i386, // FPU Control Word
-    gdb_fstat_i386, // FPU Status Word
-    gdb_ftag_i386,  // FPU Tag Word
-    gdb_fiseg_i386, // FPU IP Selector 
-    gdb_fioff_i386, // FPU IP Offset
-    gdb_foseg_i386, // FPU Operand Pointer Selector
-    gdb_fooff_i386, // FPU Operand Pointer Offset
-    gdb_fop_i386,   // Last Instruction Opcode
-    gdb_xmm0_i386 = 32,
-    gdb_xmm1_i386,
-    gdb_xmm2_i386,
-    gdb_xmm3_i386,
-    gdb_xmm4_i386,
-    gdb_xmm5_i386,
-    gdb_xmm6_i386,
-    gdb_xmm7_i386,
-    gdb_mxcsr_i386 = 40,
-    gdb_ymm0h_i386,
-    gdb_ymm1h_i386,
-    gdb_ymm2h_i386,
-    gdb_ymm3h_i386,
-    gdb_ymm4h_i386,
-    gdb_ymm5h_i386,
-    gdb_ymm6h_i386,
-    gdb_ymm7h_i386,
-    gdb_mm0_i386,
-    gdb_mm1_i386,
-    gdb_mm2_i386,
-    gdb_mm3_i386,
-    gdb_mm4_i386,
-    gdb_mm5_i386,
-    gdb_mm6_i386,
-    gdb_mm7_i386,
-};
-
 //---------------------------------------------------------------------------
-// AMD x86_64, AMD64, Intel EM64T, or Intel 64 gcc, dwarf, gdb enums
+// AMD x86_64, AMD64, Intel EM64T, or Intel 64 ehframe, dwarf regnums
 //---------------------------------------------------------------------------
 
-// GCC and DWARF Register numbers (eRegisterKindGCC & eRegisterKindDWARF)
+// EHFrame and DWARF Register numbers (eRegisterKindEHFrame & eRegisterKindDWARF)
 //  This is the spec I used (as opposed to x86-64-abi-0.99.pdf):
 //  http://software.intel.com/sites/default/files/article/402129/mpx-linux64-abi.pdf
 enum
 {
     // GP Registers
-    gcc_dwarf_rax_x86_64 = 0,
-    gcc_dwarf_rdx_x86_64,
-    gcc_dwarf_rcx_x86_64,
-    gcc_dwarf_rbx_x86_64,
-    gcc_dwarf_rsi_x86_64,
-    gcc_dwarf_rdi_x86_64,
-    gcc_dwarf_rbp_x86_64,
-    gcc_dwarf_rsp_x86_64,
+    dwarf_rax_x86_64 = 0,
+    dwarf_rdx_x86_64,
+    dwarf_rcx_x86_64,
+    dwarf_rbx_x86_64,
+    dwarf_rsi_x86_64,
+    dwarf_rdi_x86_64,
+    dwarf_rbp_x86_64,
+    dwarf_rsp_x86_64,
     // Extended GP Registers
-    gcc_dwarf_r8_x86_64 = 8,
-    gcc_dwarf_r9_x86_64,
-    gcc_dwarf_r10_x86_64,
-    gcc_dwarf_r11_x86_64,
-    gcc_dwarf_r12_x86_64,
-    gcc_dwarf_r13_x86_64,
-    gcc_dwarf_r14_x86_64,
-    gcc_dwarf_r15_x86_64,
+    dwarf_r8_x86_64 = 8,
+    dwarf_r9_x86_64,
+    dwarf_r10_x86_64,
+    dwarf_r11_x86_64,
+    dwarf_r12_x86_64,
+    dwarf_r13_x86_64,
+    dwarf_r14_x86_64,
+    dwarf_r15_x86_64,
     // Return Address (RA) mapped to RIP
-    gcc_dwarf_rip_x86_64 = 16,
+    dwarf_rip_x86_64 = 16,
     // SSE Vector Registers
-    gcc_dwarf_xmm0_x86_64 = 17,
-    gcc_dwarf_xmm1_x86_64,
-    gcc_dwarf_xmm2_x86_64,
-    gcc_dwarf_xmm3_x86_64,
-    gcc_dwarf_xmm4_x86_64,
-    gcc_dwarf_xmm5_x86_64,
-    gcc_dwarf_xmm6_x86_64,
-    gcc_dwarf_xmm7_x86_64,
-    gcc_dwarf_xmm8_x86_64,
-    gcc_dwarf_xmm9_x86_64,
-    gcc_dwarf_xmm10_x86_64,
-    gcc_dwarf_xmm11_x86_64,
-    gcc_dwarf_xmm12_x86_64,
-    gcc_dwarf_xmm13_x86_64,
-    gcc_dwarf_xmm14_x86_64,
-    gcc_dwarf_xmm15_x86_64,
+    dwarf_xmm0_x86_64 = 17,
+    dwarf_xmm1_x86_64,
+    dwarf_xmm2_x86_64,
+    dwarf_xmm3_x86_64,
+    dwarf_xmm4_x86_64,
+    dwarf_xmm5_x86_64,
+    dwarf_xmm6_x86_64,
+    dwarf_xmm7_x86_64,
+    dwarf_xmm8_x86_64,
+    dwarf_xmm9_x86_64,
+    dwarf_xmm10_x86_64,
+    dwarf_xmm11_x86_64,
+    dwarf_xmm12_x86_64,
+    dwarf_xmm13_x86_64,
+    dwarf_xmm14_x86_64,
+    dwarf_xmm15_x86_64,
     // Floating Point Registers
-    gcc_dwarf_st0_x86_64 = 33,
-    gcc_dwarf_st1_x86_64,
-    gcc_dwarf_st2_x86_64,
-    gcc_dwarf_st3_x86_64,
-    gcc_dwarf_st4_x86_64,
-    gcc_dwarf_st5_x86_64,
-    gcc_dwarf_st6_x86_64,
-    gcc_dwarf_st7_x86_64,
+    dwarf_st0_x86_64 = 33,
+    dwarf_st1_x86_64,
+    dwarf_st2_x86_64,
+    dwarf_st3_x86_64,
+    dwarf_st4_x86_64,
+    dwarf_st5_x86_64,
+    dwarf_st6_x86_64,
+    dwarf_st7_x86_64,
     // MMX Registers
-    gcc_dwarf_mm0_x86_64 = 41,
-    gcc_dwarf_mm1_x86_64,
-    gcc_dwarf_mm2_x86_64,
-    gcc_dwarf_mm3_x86_64,
-    gcc_dwarf_mm4_x86_64,
-    gcc_dwarf_mm5_x86_64,
-    gcc_dwarf_mm6_x86_64,
-    gcc_dwarf_mm7_x86_64,
+    dwarf_mm0_x86_64 = 41,
+    dwarf_mm1_x86_64,
+    dwarf_mm2_x86_64,
+    dwarf_mm3_x86_64,
+    dwarf_mm4_x86_64,
+    dwarf_mm5_x86_64,
+    dwarf_mm6_x86_64,
+    dwarf_mm7_x86_64,
     // Control and Status Flags Register
-    gcc_dwarf_rflags_x86_64 = 49,
+    dwarf_rflags_x86_64 = 49,
     //  selector registers
-    gcc_dwarf_es_x86_64 = 50,
-    gcc_dwarf_cs_x86_64,
-    gcc_dwarf_ss_x86_64,
-    gcc_dwarf_ds_x86_64,
-    gcc_dwarf_fs_x86_64,
-    gcc_dwarf_gs_x86_64,
+    dwarf_es_x86_64 = 50,
+    dwarf_cs_x86_64,
+    dwarf_ss_x86_64,
+    dwarf_ds_x86_64,
+    dwarf_fs_x86_64,
+    dwarf_gs_x86_64,
     // Floating point control registers
-    gcc_dwarf_mxcsr_x86_64 = 64, // Media Control and Status
-    gcc_dwarf_fctrl_x86_64,      // x87 control word
-    gcc_dwarf_fstat_x86_64,      // x87 status word
+    dwarf_mxcsr_x86_64 = 64, // Media Control and Status
+    dwarf_fctrl_x86_64,      // x87 control word
+    dwarf_fstat_x86_64,      // x87 status word
     // Upper Vector Registers    
-    gcc_dwarf_ymm0h_x86_64 = 67,
-    gcc_dwarf_ymm1h_x86_64,
-    gcc_dwarf_ymm2h_x86_64,
-    gcc_dwarf_ymm3h_x86_64,
-    gcc_dwarf_ymm4h_x86_64,
-    gcc_dwarf_ymm5h_x86_64,
-    gcc_dwarf_ymm6h_x86_64,
-    gcc_dwarf_ymm7h_x86_64,
-    gcc_dwarf_ymm8h_x86_64,
-    gcc_dwarf_ymm9h_x86_64,
-    gcc_dwarf_ymm10h_x86_64,
-    gcc_dwarf_ymm11h_x86_64,
-    gcc_dwarf_ymm12h_x86_64,
-    gcc_dwarf_ymm13h_x86_64,
-    gcc_dwarf_ymm14h_x86_64,
-    gcc_dwarf_ymm15h_x86_64,
+    dwarf_ymm0h_x86_64 = 67,
+    dwarf_ymm1h_x86_64,
+    dwarf_ymm2h_x86_64,
+    dwarf_ymm3h_x86_64,
+    dwarf_ymm4h_x86_64,
+    dwarf_ymm5h_x86_64,
+    dwarf_ymm6h_x86_64,
+    dwarf_ymm7h_x86_64,
+    dwarf_ymm8h_x86_64,
+    dwarf_ymm9h_x86_64,
+    dwarf_ymm10h_x86_64,
+    dwarf_ymm11h_x86_64,
+    dwarf_ymm12h_x86_64,
+    dwarf_ymm13h_x86_64,
+    dwarf_ymm14h_x86_64,
+    dwarf_ymm15h_x86_64,
     // AVX2 Vector Mask Registers
-    // gcc_dwarf_k0_x86_64 = 118,
-    // gcc_dwarf_k1_x86_64,
-    // gcc_dwarf_k2_x86_64,
-    // gcc_dwarf_k3_x86_64,
-    // gcc_dwarf_k4_x86_64,
-    // gcc_dwarf_k5_x86_64,
-    // gcc_dwarf_k6_x86_64,
-    // gcc_dwarf_k7_x86_64,
-};
-
-// GDB Register numbers (eRegisterKindGDB)
-enum
-{
-    // GP Registers
-    gdb_rax_x86_64 = 0,
-    gdb_rbx_x86_64,
-    gdb_rcx_x86_64,
-    gdb_rdx_x86_64,
-    gdb_rsi_x86_64,
-    gdb_rdi_x86_64,
-    gdb_rbp_x86_64,
-    gdb_rsp_x86_64,
-    // Extended GP Registers
-    gdb_r8_x86_64,
-    gdb_r9_x86_64,
-    gdb_r10_x86_64,
-    gdb_r11_x86_64,
-    gdb_r12_x86_64,
-    gdb_r13_x86_64,
-    gdb_r14_x86_64,
-    gdb_r15_x86_64,
-    // Return Address (RA) mapped to RIP
-    gdb_rip_x86_64,
-    // Control and Status Flags Register
-    gdb_rflags_x86_64,
-    gdb_cs_x86_64,
-    gdb_ss_x86_64,
-    gdb_ds_x86_64,
-    gdb_es_x86_64,
-    gdb_fs_x86_64,
-    gdb_gs_x86_64,
-    // Floating Point Registers
-    gdb_st0_x86_64,
-    gdb_st1_x86_64,
-    gdb_st2_x86_64,
-    gdb_st3_x86_64,
-    gdb_st4_x86_64,
-    gdb_st5_x86_64,
-    gdb_st6_x86_64,
-    gdb_st7_x86_64,
-    gdb_fctrl_x86_64,
-    gdb_fstat_x86_64,
-    gdb_ftag_x86_64,
-    gdb_fiseg_x86_64,
-    gdb_fioff_x86_64,
-    gdb_foseg_x86_64,
-    gdb_fooff_x86_64,
-    gdb_fop_x86_64,
-    // SSE Vector Registers
-    gdb_xmm0_x86_64 = 40,
-    gdb_xmm1_x86_64,
-    gdb_xmm2_x86_64,
-    gdb_xmm3_x86_64,
-    gdb_xmm4_x86_64,
-    gdb_xmm5_x86_64,
-    gdb_xmm6_x86_64,
-    gdb_xmm7_x86_64,
-    gdb_xmm8_x86_64,
-    gdb_xmm9_x86_64,
-    gdb_xmm10_x86_64,
-    gdb_xmm11_x86_64,
-    gdb_xmm12_x86_64,
-    gdb_xmm13_x86_64,
-    gdb_xmm14_x86_64,
-    gdb_xmm15_x86_64,
-    // Floating point control registers
-    gdb_mxcsr_x86_64 = 56,
-    gdb_ymm0h_x86_64,
-    gdb_ymm1h_x86_64,
-    gdb_ymm2h_x86_64,
-    gdb_ymm3h_x86_64,
-    gdb_ymm4h_x86_64,
-    gdb_ymm5h_x86_64,
-    gdb_ymm6h_x86_64,
-    gdb_ymm7h_x86_64,
-    gdb_ymm8h_x86_64,
-    gdb_ymm9h_x86_64,
-    gdb_ymm10h_x86_64,
-    gdb_ymm11h_x86_64,
-    gdb_ymm12h_x86_64,
-    gdb_ymm13h_x86_64,
-    gdb_ymm14h_x86_64,
-    gdb_ymm15h_x86_64
+    // dwarf_k0_x86_64 = 118,
+    // dwarf_k1_x86_64,
+    // dwarf_k2_x86_64,
+    // dwarf_k3_x86_64,
+    // dwarf_k4_x86_64,
+    // dwarf_k5_x86_64,
+    // dwarf_k6_x86_64,
+    // dwarf_k7_x86_64,
 };
 
 //---------------------------------------------------------------------------
@@ -404,7 +244,8 @@ struct FXSAVE
 {
     uint16_t fctrl;         // FPU Control Word (fcw)
     uint16_t fstat;         // FPU Status Word (fsw)
-    uint16_t ftag;          // FPU Tag Word (ftw)
+    uint8_t ftag;           // FPU Tag Word (ftw)
+    uint8_t reserved_1;     // Reserved
     uint16_t fop;           // Last Instruction Opcode (fop)
     union
     {
diff --git a/source/Plugins/Process/Utility/RegisterInfoInterface.h b/source/Plugins/Process/Utility/RegisterInfoInterface.h
index 94cb5cc791c6e..801885d5f4c56 100644
--- a/source/Plugins/Process/Utility/RegisterInfoInterface.h
+++ b/source/Plugins/Process/Utility/RegisterInfoInterface.h
@@ -10,6 +10,8 @@
 #ifndef lldb_RegisterInfoInterface_h
 #define lldb_RegisterInfoInterface_h
 
+#include <vector>
+
 #include "lldb/Core/ArchSpec.h"
 
 namespace lldb_private
@@ -50,6 +52,26 @@ namespace lldb_private
         GetTargetArchitecture() const
             { return m_target_arch; }
 
+        virtual const lldb_private::RegisterInfo *
+        GetDynamicRegisterInfo(const char *reg_name) const
+        {
+            const std::vector <lldb_private::RegisterInfo> * d_register_infos = GetDynamicRegisterInfoP();
+            if(d_register_infos != nullptr)
+            {
+                std::vector <lldb_private::RegisterInfo> ::const_iterator pos = d_register_infos->begin();
+                for(; pos < d_register_infos->end() ; pos++)
+                {
+                    if(::strcmp(reg_name, pos->name) == 0)
+                        return(d_register_infos->data() + (pos - d_register_infos->begin()) );
+                }
+            }
+            return nullptr;
+        }
+
+        virtual const std::vector<lldb_private::RegisterInfo> *
+        GetDynamicRegisterInfoP() const
+        { return nullptr; }
+
     public:
         // FIXME make private.
         lldb_private::ArchSpec m_target_arch;
diff --git a/source/Plugins/Process/Utility/RegisterInfos_arm.h b/source/Plugins/Process/Utility/RegisterInfos_arm.h
index 3d144d6694153..03457728b632c 100644
--- a/source/Plugins/Process/Utility/RegisterInfos_arm.h
+++ b/source/Plugins/Process/Utility/RegisterInfos_arm.h
@@ -1,21 +1,25 @@
-//===-- RegisterInfos_arm.h ----------------------------------*- C++ -*-===//
+//===-- RegisterInfos_arm.h -------------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
-//===---------------------------------------------------------------------===//
+//===----------------------------------------------------------------------===//
 
 #ifdef DECLARE_REGISTER_INFOS_ARM_STRUCT
 
+// C Includes
 #include <stddef.h>
 
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-private.h"
 #include "lldb/lldb-defines.h"
 #include "lldb/lldb-enumerations.h"
 
-#include "Utility/ARM_GCC_Registers.h"
+#include "Utility/ARM_ehframe_Registers.h"
 #include "Utility/ARM_DWARF_Registers.h"
 
 using namespace lldb;
@@ -25,17 +29,16 @@ using namespace lldb_private;
 #error GPR_OFFSET must be defined before including this header file
 #endif
 
-
 #ifndef FPU_OFFSET
 #error FPU_OFFSET must be defined before including this header file
 #endif
 
-#ifndef EXC_OFFSET
-#error EXC_OFFSET_NAME must be defined before including this header file
+#ifndef FPSCR_OFFSET
+#error FPSCR_OFFSET must be defined before including this header file
 #endif
 
-#ifndef DBG_OFFSET
-#error DBG_OFFSET_NAME must be defined before including this header file
+#ifndef EXC_OFFSET
+#error EXC_OFFSET_NAME must be defined before including this header file
 #endif
 
 #ifndef DEFINE_DBG
@@ -96,6 +99,56 @@ enum
     fpu_s31,
     fpu_fpscr,
 
+    fpu_d0,
+    fpu_d1,
+    fpu_d2,
+    fpu_d3,
+    fpu_d4,
+    fpu_d5,
+    fpu_d6,
+    fpu_d7,
+    fpu_d8,
+    fpu_d9,
+    fpu_d10,
+    fpu_d11,
+    fpu_d12,
+    fpu_d13,
+    fpu_d14,
+    fpu_d15,
+    fpu_d16,
+    fpu_d17,
+    fpu_d18,
+    fpu_d19,
+    fpu_d20,
+    fpu_d21,
+    fpu_d22,
+    fpu_d23,
+    fpu_d24,
+    fpu_d25,
+    fpu_d26,
+    fpu_d27,
+    fpu_d28,
+    fpu_d29,
+    fpu_d30,
+    fpu_d31,
+
+    fpu_q0,
+    fpu_q1,
+    fpu_q2,
+    fpu_q3,
+    fpu_q4,
+    fpu_q5,
+    fpu_q6,
+    fpu_q7,
+    fpu_q8,
+    fpu_q9,
+    fpu_q10,
+    fpu_q11,
+    fpu_q12,
+    fpu_q13,
+    fpu_q14,
+    fpu_q15,
+
     exc_exception,
     exc_fsr,
     exc_far,
@@ -171,65 +224,214 @@ enum
     k_num_registers
 };
 
+static uint32_t g_s0_invalidates[]  = { fpu_d0,  fpu_q0, LLDB_INVALID_REGNUM };
+static uint32_t g_s1_invalidates[]  = { fpu_d0,  fpu_q0, LLDB_INVALID_REGNUM };
+static uint32_t g_s2_invalidates[]  = { fpu_d1,  fpu_q0, LLDB_INVALID_REGNUM };
+static uint32_t g_s3_invalidates[]  = { fpu_d1,  fpu_q0, LLDB_INVALID_REGNUM };
+static uint32_t g_s4_invalidates[]  = { fpu_d2,  fpu_q1, LLDB_INVALID_REGNUM };
+static uint32_t g_s5_invalidates[]  = { fpu_d2,  fpu_q1, LLDB_INVALID_REGNUM };
+static uint32_t g_s6_invalidates[]  = { fpu_d3,  fpu_q1, LLDB_INVALID_REGNUM };
+static uint32_t g_s7_invalidates[]  = { fpu_d3,  fpu_q1, LLDB_INVALID_REGNUM };
+static uint32_t g_s8_invalidates[]  = { fpu_d4,  fpu_q2, LLDB_INVALID_REGNUM };
+static uint32_t g_s9_invalidates[]  = { fpu_d4,  fpu_q2, LLDB_INVALID_REGNUM };
+static uint32_t g_s10_invalidates[] = { fpu_d5,  fpu_q2, LLDB_INVALID_REGNUM };
+static uint32_t g_s11_invalidates[] = { fpu_d5,  fpu_q2, LLDB_INVALID_REGNUM };
+static uint32_t g_s12_invalidates[] = { fpu_d6,  fpu_q3, LLDB_INVALID_REGNUM };
+static uint32_t g_s13_invalidates[] = { fpu_d6,  fpu_q3, LLDB_INVALID_REGNUM };
+static uint32_t g_s14_invalidates[] = { fpu_d7,  fpu_q3, LLDB_INVALID_REGNUM };
+static uint32_t g_s15_invalidates[] = { fpu_d7,  fpu_q3, LLDB_INVALID_REGNUM };
+static uint32_t g_s16_invalidates[] = { fpu_d8,  fpu_q4, LLDB_INVALID_REGNUM };
+static uint32_t g_s17_invalidates[] = { fpu_d8,  fpu_q4, LLDB_INVALID_REGNUM };
+static uint32_t g_s18_invalidates[] = { fpu_d9,  fpu_q4, LLDB_INVALID_REGNUM };
+static uint32_t g_s19_invalidates[] = { fpu_d9,  fpu_q4, LLDB_INVALID_REGNUM };
+static uint32_t g_s20_invalidates[] = { fpu_d10, fpu_q5, LLDB_INVALID_REGNUM };
+static uint32_t g_s21_invalidates[] = { fpu_d10, fpu_q5, LLDB_INVALID_REGNUM };
+static uint32_t g_s22_invalidates[] = { fpu_d11, fpu_q5, LLDB_INVALID_REGNUM };
+static uint32_t g_s23_invalidates[] = { fpu_d11, fpu_q5, LLDB_INVALID_REGNUM };
+static uint32_t g_s24_invalidates[] = { fpu_d12, fpu_q6, LLDB_INVALID_REGNUM };
+static uint32_t g_s25_invalidates[] = { fpu_d12, fpu_q6, LLDB_INVALID_REGNUM };
+static uint32_t g_s26_invalidates[] = { fpu_d13, fpu_q6, LLDB_INVALID_REGNUM };
+static uint32_t g_s27_invalidates[] = { fpu_d13, fpu_q6, LLDB_INVALID_REGNUM };
+static uint32_t g_s28_invalidates[] = { fpu_d14, fpu_q7, LLDB_INVALID_REGNUM };
+static uint32_t g_s29_invalidates[] = { fpu_d14, fpu_q7, LLDB_INVALID_REGNUM };
+static uint32_t g_s30_invalidates[] = { fpu_d15, fpu_q7, LLDB_INVALID_REGNUM };
+static uint32_t g_s31_invalidates[] = { fpu_d15, fpu_q7, LLDB_INVALID_REGNUM };
+
+static uint32_t g_d0_contains[] =  { fpu_s0,  fpu_s1,  LLDB_INVALID_REGNUM };
+static uint32_t g_d1_contains[] =  { fpu_s2,  fpu_s3,  LLDB_INVALID_REGNUM };
+static uint32_t g_d2_contains[] =  { fpu_s4,  fpu_s5,  LLDB_INVALID_REGNUM };
+static uint32_t g_d3_contains[] =  { fpu_s6,  fpu_s7,  LLDB_INVALID_REGNUM };
+static uint32_t g_d4_contains[] =  { fpu_s8,  fpu_s9,  LLDB_INVALID_REGNUM };
+static uint32_t g_d5_contains[] =  { fpu_s10, fpu_s11, LLDB_INVALID_REGNUM };
+static uint32_t g_d6_contains[] =  { fpu_s12, fpu_s13, LLDB_INVALID_REGNUM };
+static uint32_t g_d7_contains[] =  { fpu_s14, fpu_s15, LLDB_INVALID_REGNUM };
+static uint32_t g_d8_contains[] =  { fpu_s16, fpu_s17, LLDB_INVALID_REGNUM };
+static uint32_t g_d9_contains[] =  { fpu_s18, fpu_s19, LLDB_INVALID_REGNUM };
+static uint32_t g_d10_contains[] = { fpu_s20, fpu_s21, LLDB_INVALID_REGNUM };
+static uint32_t g_d11_contains[] = { fpu_s22, fpu_s23, LLDB_INVALID_REGNUM };
+static uint32_t g_d12_contains[] = { fpu_s24, fpu_s25, LLDB_INVALID_REGNUM };
+static uint32_t g_d13_contains[] = { fpu_s26, fpu_s27, LLDB_INVALID_REGNUM };
+static uint32_t g_d14_contains[] = { fpu_s28, fpu_s29, LLDB_INVALID_REGNUM };
+static uint32_t g_d15_contains[] = { fpu_s30, fpu_s31, LLDB_INVALID_REGNUM };
+
+static uint32_t g_d0_invalidates[]  = { fpu_q0, LLDB_INVALID_REGNUM };
+static uint32_t g_d1_invalidates[]  = { fpu_q0, LLDB_INVALID_REGNUM };
+static uint32_t g_d2_invalidates[]  = { fpu_q1, LLDB_INVALID_REGNUM };
+static uint32_t g_d3_invalidates[]  = { fpu_q1, LLDB_INVALID_REGNUM };
+static uint32_t g_d4_invalidates[]  = { fpu_q2, LLDB_INVALID_REGNUM };
+static uint32_t g_d5_invalidates[]  = { fpu_q2, LLDB_INVALID_REGNUM };
+static uint32_t g_d6_invalidates[]  = { fpu_q3, LLDB_INVALID_REGNUM };
+static uint32_t g_d7_invalidates[]  = { fpu_q3, LLDB_INVALID_REGNUM };
+static uint32_t g_d8_invalidates[]  = { fpu_q4, LLDB_INVALID_REGNUM };
+static uint32_t g_d9_invalidates[]  = { fpu_q4, LLDB_INVALID_REGNUM };
+static uint32_t g_d10_invalidates[] = { fpu_q5, LLDB_INVALID_REGNUM };
+static uint32_t g_d11_invalidates[] = { fpu_q5, LLDB_INVALID_REGNUM };
+static uint32_t g_d12_invalidates[] = { fpu_q6, LLDB_INVALID_REGNUM };
+static uint32_t g_d13_invalidates[] = { fpu_q6, LLDB_INVALID_REGNUM };
+static uint32_t g_d14_invalidates[] = { fpu_q7, LLDB_INVALID_REGNUM };
+static uint32_t g_d15_invalidates[] = { fpu_q7, LLDB_INVALID_REGNUM };
+static uint32_t g_d16_invalidates[] = { fpu_q8, LLDB_INVALID_REGNUM };
+static uint32_t g_d17_invalidates[] = { fpu_q8, LLDB_INVALID_REGNUM };
+static uint32_t g_d18_invalidates[] = { fpu_q9, LLDB_INVALID_REGNUM };
+static uint32_t g_d19_invalidates[] = { fpu_q9, LLDB_INVALID_REGNUM };
+static uint32_t g_d20_invalidates[] = { fpu_q10, LLDB_INVALID_REGNUM };
+static uint32_t g_d21_invalidates[] = { fpu_q10, LLDB_INVALID_REGNUM };
+static uint32_t g_d22_invalidates[] = { fpu_q11, LLDB_INVALID_REGNUM };
+static uint32_t g_d23_invalidates[] = { fpu_q11, LLDB_INVALID_REGNUM };
+static uint32_t g_d24_invalidates[] = { fpu_q12, LLDB_INVALID_REGNUM };
+static uint32_t g_d25_invalidates[] = { fpu_q12, LLDB_INVALID_REGNUM };
+static uint32_t g_d26_invalidates[] = { fpu_q13, LLDB_INVALID_REGNUM };
+static uint32_t g_d27_invalidates[] = { fpu_q13, LLDB_INVALID_REGNUM };
+static uint32_t g_d28_invalidates[] = { fpu_q14, LLDB_INVALID_REGNUM };
+static uint32_t g_d29_invalidates[] = { fpu_q14, LLDB_INVALID_REGNUM };
+static uint32_t g_d30_invalidates[] = { fpu_q15, LLDB_INVALID_REGNUM };
+static uint32_t g_d31_invalidates[] = { fpu_q15, LLDB_INVALID_REGNUM };
+
+static uint32_t g_q0_contains[] =  { fpu_d0,  fpu_d1,  fpu_s0,  fpu_s1,  fpu_s2,  fpu_s3,  LLDB_INVALID_REGNUM };
+static uint32_t g_q1_contains[] =  { fpu_d2,  fpu_d3,  fpu_s4,  fpu_s5,  fpu_s6,  fpu_s7,  LLDB_INVALID_REGNUM };
+static uint32_t g_q2_contains[] =  { fpu_d4,  fpu_d5,  fpu_s8,  fpu_s9,  fpu_s10, fpu_s11, LLDB_INVALID_REGNUM };
+static uint32_t g_q3_contains[] =  { fpu_d6,  fpu_d7,  fpu_s12, fpu_s13, fpu_s14, fpu_s15, LLDB_INVALID_REGNUM };
+static uint32_t g_q4_contains[] =  { fpu_d8,  fpu_d9,  fpu_s16, fpu_s17, fpu_s18, fpu_s19, LLDB_INVALID_REGNUM };
+static uint32_t g_q5_contains[] =  { fpu_d10, fpu_d11, fpu_s20, fpu_s21, fpu_s22, fpu_s23, LLDB_INVALID_REGNUM };
+static uint32_t g_q6_contains[] =  { fpu_d12, fpu_d13, fpu_s24, fpu_s25, fpu_s26, fpu_s27, LLDB_INVALID_REGNUM };
+static uint32_t g_q7_contains[] =  { fpu_d14, fpu_d15, fpu_s28, fpu_s29, fpu_s30, fpu_s31, LLDB_INVALID_REGNUM };
+static uint32_t g_q8_contains[] =  { fpu_d16, fpu_d17, LLDB_INVALID_REGNUM };
+static uint32_t g_q9_contains[] =  { fpu_d18, fpu_d19, LLDB_INVALID_REGNUM };
+static uint32_t g_q10_contains[] = { fpu_d20, fpu_d21, LLDB_INVALID_REGNUM };
+static uint32_t g_q11_contains[] = { fpu_d22, fpu_d23, LLDB_INVALID_REGNUM };
+static uint32_t g_q12_contains[] = { fpu_d24, fpu_d25, LLDB_INVALID_REGNUM };
+static uint32_t g_q13_contains[] = { fpu_d26, fpu_d27, LLDB_INVALID_REGNUM };
+static uint32_t g_q14_contains[] = { fpu_d28, fpu_d29, LLDB_INVALID_REGNUM };
+static uint32_t g_q15_contains[] = { fpu_d30, fpu_d31, LLDB_INVALID_REGNUM };
+
 static RegisterInfo g_register_infos_arm[] = {
-// General purpose registers
-//  NAME        ALT     SZ  OFFSET              ENCODING        FORMAT          COMPILER                DWARF               GENERIC                     GDB                     LLDB NATIVE   VALUE REGS    INVALIDATE REGS
-//  ======      ======= ==  =============       =============   ============    ===============         ===============     =========================   =====================   ============= ==========    ===============
-{   "r0",       NULL,   4,  GPR_OFFSET(0),      eEncodingUint,  eFormatHex,     { gcc_r0,               dwarf_r0,           LLDB_REGNUM_GENERIC_ARG1,   gdb_arm_r0,             gpr_r0      },      NULL,              NULL},
-{   "r1",       NULL,   4,  GPR_OFFSET(1),      eEncodingUint,  eFormatHex,     { gcc_r1,               dwarf_r1,           LLDB_REGNUM_GENERIC_ARG2,   gdb_arm_r1,             gpr_r1      },      NULL,              NULL},
-{   "r2",       NULL,   4,  GPR_OFFSET(2),      eEncodingUint,  eFormatHex,     { gcc_r2,               dwarf_r2,           LLDB_REGNUM_GENERIC_ARG3,   gdb_arm_r2,             gpr_r2      },      NULL,              NULL},
-{   "r3",       NULL,   4,  GPR_OFFSET(3),      eEncodingUint,  eFormatHex,     { gcc_r3,               dwarf_r3,           LLDB_REGNUM_GENERIC_ARG4,   gdb_arm_r3,             gpr_r3      },      NULL,              NULL},
-{   "r4",       NULL,   4,  GPR_OFFSET(4),      eEncodingUint,  eFormatHex,     { gcc_r4,               dwarf_r4,           LLDB_INVALID_REGNUM,        gdb_arm_r4,             gpr_r4      },      NULL,              NULL},
-{   "r5",       NULL,   4,  GPR_OFFSET(5),      eEncodingUint,  eFormatHex,     { gcc_r5,               dwarf_r5,           LLDB_INVALID_REGNUM,        gdb_arm_r5,             gpr_r5      },      NULL,              NULL},
-{   "r6",       NULL,   4,  GPR_OFFSET(6),      eEncodingUint,  eFormatHex,     { gcc_r6,               dwarf_r6,           LLDB_INVALID_REGNUM,        gdb_arm_r6,             gpr_r6      },      NULL,              NULL},
-{   "r7",       NULL,   4,  GPR_OFFSET(7),      eEncodingUint,  eFormatHex,     { gcc_r7,               dwarf_r7,           LLDB_INVALID_REGNUM,        gdb_arm_r7,             gpr_r7      },      NULL,              NULL},
-{   "r8",       NULL,   4,  GPR_OFFSET(8),      eEncodingUint,  eFormatHex,     { gcc_r8,               dwarf_r8,           LLDB_INVALID_REGNUM,        gdb_arm_r8,             gpr_r8      },      NULL,              NULL},
-{   "r9",       NULL,   4,  GPR_OFFSET(9),      eEncodingUint,  eFormatHex,     { gcc_r9,               dwarf_r9,           LLDB_INVALID_REGNUM,        gdb_arm_r9,             gpr_r9      },      NULL,              NULL},
-{   "r10",      NULL,   4,  GPR_OFFSET(10),     eEncodingUint,  eFormatHex,     { gcc_r10,              dwarf_r10,          LLDB_INVALID_REGNUM,        gdb_arm_r10,            gpr_r10     },      NULL,              NULL},
-{   "r11",      NULL,   4,  GPR_OFFSET(11),     eEncodingUint,  eFormatHex,     { gcc_r11,              dwarf_r11,          LLDB_REGNUM_GENERIC_FP,     gdb_arm_r11,            gpr_r11     },      NULL,              NULL},
-{   "r12",      NULL,   4,  GPR_OFFSET(12),     eEncodingUint,  eFormatHex,     { gcc_r12,              dwarf_r12,          LLDB_INVALID_REGNUM,        gdb_arm_r12,            gpr_r12     },      NULL,              NULL},
-{   "sp",       "r13",  4,  GPR_OFFSET(13),     eEncodingUint,  eFormatHex,     { gcc_sp,               dwarf_sp,           LLDB_REGNUM_GENERIC_SP,     gdb_arm_sp,             gpr_sp      },      NULL,              NULL},
-{   "lr",       "r14",  4,  GPR_OFFSET(14),     eEncodingUint,  eFormatHex,     { gcc_lr,               dwarf_lr,           LLDB_REGNUM_GENERIC_RA,     gdb_arm_lr,             gpr_lr      },      NULL,              NULL},
-{   "pc",       "r15",  4,  GPR_OFFSET(15),     eEncodingUint,  eFormatHex,     { gcc_pc,               dwarf_pc,           LLDB_REGNUM_GENERIC_PC,     gdb_arm_pc,             gpr_pc      },      NULL,              NULL},
-{   "cpsr",     "psr",  4,  GPR_OFFSET(16),     eEncodingUint,  eFormatHex,     { gcc_cpsr,             dwarf_cpsr,         LLDB_REGNUM_GENERIC_FLAGS,  gdb_arm_cpsr,           gpr_cpsr    },      NULL,              NULL},
-
-{   "s0",       NULL,   4,  FPU_OFFSET(0),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s0,           LLDB_INVALID_REGNUM,        gdb_arm_s0,             fpu_s0      },      NULL,              NULL},
-{   "s1",       NULL,   4,  FPU_OFFSET(1),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s1,           LLDB_INVALID_REGNUM,        gdb_arm_s1,             fpu_s1      },      NULL,              NULL},
-{   "s2",       NULL,   4,  FPU_OFFSET(2),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s2,           LLDB_INVALID_REGNUM,        gdb_arm_s2,             fpu_s2      },      NULL,              NULL},
-{   "s3",       NULL,   4,  FPU_OFFSET(3),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s3,           LLDB_INVALID_REGNUM,        gdb_arm_s3,             fpu_s3      },      NULL,              NULL},
-{   "s4",       NULL,   4,  FPU_OFFSET(4),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s4,           LLDB_INVALID_REGNUM,        gdb_arm_s4,             fpu_s4      },      NULL,              NULL},
-{   "s5",       NULL,   4,  FPU_OFFSET(5),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s5,           LLDB_INVALID_REGNUM,        gdb_arm_s5,             fpu_s5      },      NULL,              NULL},
-{   "s6",       NULL,   4,  FPU_OFFSET(6),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s6,           LLDB_INVALID_REGNUM,        gdb_arm_s6,             fpu_s6      },      NULL,              NULL},
-{   "s7",       NULL,   4,  FPU_OFFSET(7),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s7,           LLDB_INVALID_REGNUM,        gdb_arm_s7,             fpu_s7      },      NULL,              NULL},
-{   "s8",       NULL,   4,  FPU_OFFSET(8),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s8,           LLDB_INVALID_REGNUM,        gdb_arm_s8,             fpu_s8      },      NULL,              NULL},
-{   "s9",       NULL,   4,  FPU_OFFSET(9),      eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s9,           LLDB_INVALID_REGNUM,        gdb_arm_s9,             fpu_s9      },      NULL,              NULL},
-{   "s10",      NULL,   4,  FPU_OFFSET(10),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s10,          LLDB_INVALID_REGNUM,        gdb_arm_s10,            fpu_s10     },      NULL,              NULL},
-{   "s11",      NULL,   4,  FPU_OFFSET(11),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s11,          LLDB_INVALID_REGNUM,        gdb_arm_s11,            fpu_s11     },      NULL,              NULL},
-{   "s12",      NULL,   4,  FPU_OFFSET(12),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s12,          LLDB_INVALID_REGNUM,        gdb_arm_s12,            fpu_s12     },      NULL,              NULL},
-{   "s13",      NULL,   4,  FPU_OFFSET(13),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s13,          LLDB_INVALID_REGNUM,        gdb_arm_s13,            fpu_s13     },      NULL,              NULL},
-{   "s14",      NULL,   4,  FPU_OFFSET(14),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s14,          LLDB_INVALID_REGNUM,        gdb_arm_s14,            fpu_s14     },      NULL,              NULL},
-{   "s15",      NULL,   4,  FPU_OFFSET(15),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s15,          LLDB_INVALID_REGNUM,        gdb_arm_s15,            fpu_s15     },      NULL,              NULL},
-{   "s16",      NULL,   4,  FPU_OFFSET(16),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s16,          LLDB_INVALID_REGNUM,        gdb_arm_s16,            fpu_s16     },      NULL,              NULL},
-{   "s17",      NULL,   4,  FPU_OFFSET(17),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s17,          LLDB_INVALID_REGNUM,        gdb_arm_s17,            fpu_s17     },      NULL,              NULL},
-{   "s18",      NULL,   4,  FPU_OFFSET(18),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s18,          LLDB_INVALID_REGNUM,        gdb_arm_s18,            fpu_s18     },      NULL,              NULL},
-{   "s19",      NULL,   4,  FPU_OFFSET(19),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s19,          LLDB_INVALID_REGNUM,        gdb_arm_s19,            fpu_s19     },      NULL,              NULL},
-{   "s20",      NULL,   4,  FPU_OFFSET(20),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s20,          LLDB_INVALID_REGNUM,        gdb_arm_s20,            fpu_s20     },      NULL,              NULL},
-{   "s21",      NULL,   4,  FPU_OFFSET(21),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s21,          LLDB_INVALID_REGNUM,        gdb_arm_s21,            fpu_s21     },      NULL,              NULL},
-{   "s22",      NULL,   4,  FPU_OFFSET(22),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s22,          LLDB_INVALID_REGNUM,        gdb_arm_s22,            fpu_s22     },      NULL,              NULL},
-{   "s23",      NULL,   4,  FPU_OFFSET(23),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s23,          LLDB_INVALID_REGNUM,        gdb_arm_s23,            fpu_s23     },      NULL,              NULL},
-{   "s24",      NULL,   4,  FPU_OFFSET(24),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s24,          LLDB_INVALID_REGNUM,        gdb_arm_s24,            fpu_s24     },      NULL,              NULL},
-{   "s25",      NULL,   4,  FPU_OFFSET(25),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s25,          LLDB_INVALID_REGNUM,        gdb_arm_s25,            fpu_s25     },      NULL,              NULL},
-{   "s26",      NULL,   4,  FPU_OFFSET(26),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s26,          LLDB_INVALID_REGNUM,        gdb_arm_s26,            fpu_s26     },      NULL,              NULL},
-{   "s27",      NULL,   4,  FPU_OFFSET(27),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s27,          LLDB_INVALID_REGNUM,        gdb_arm_s27,            fpu_s27     },      NULL,              NULL},
-{   "s28",      NULL,   4,  FPU_OFFSET(28),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s28,          LLDB_INVALID_REGNUM,        gdb_arm_s28,            fpu_s28     },      NULL,              NULL},
-{   "s29",      NULL,   4,  FPU_OFFSET(29),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s29,          LLDB_INVALID_REGNUM,        gdb_arm_s29,            fpu_s29     },      NULL,              NULL},
-{   "s30",      NULL,   4,  FPU_OFFSET(30),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s30,          LLDB_INVALID_REGNUM,        gdb_arm_s30,            fpu_s30     },      NULL,              NULL},
-{   "s31",      NULL,   4,  FPU_OFFSET(31),     eEncodingIEEE754,eFormatFloat,  { LLDB_INVALID_REGNUM,  dwarf_s31,          LLDB_INVALID_REGNUM,        gdb_arm_s31,            fpu_s31     },      NULL,              NULL},
-{   "fpscr",    NULL,   4,  FPU_OFFSET(32),     eEncodingUint,  eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM,        gdb_arm_fpscr,          fpu_fpscr   },      NULL,              NULL},
-
-{   "exception",NULL,   4,  EXC_OFFSET(0),      eEncodingUint,  eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    exc_exception },    NULL,              NULL},
-{   "fsr",      NULL,   4,  EXC_OFFSET(1),      eEncodingUint,  eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    exc_fsr       },    NULL,              NULL},
-{   "far",      NULL,   4,  EXC_OFFSET(2),      eEncodingUint,  eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    exc_far       },    NULL,              NULL},
+//  NAME         ALT     SZ   OFFSET          ENCODING          FORMAT                  EH_FRAME             DWARF                GENERIC                     PROCESS PLUGIN       LLDB NATIVE      VALUE REGS      INVALIDATE REGS
+//  ===========  ======= ==   ==============  ================  ====================    ===================  ===================  ==========================  ===================  =============    ==============  =================
+{   "r0",        nullptr, 4,  GPR_OFFSET(0),  eEncodingUint,    eFormatHex,           { ehframe_r0,          dwarf_r0,            LLDB_REGNUM_GENERIC_ARG1,   LLDB_INVALID_REGNUM, gpr_r0        }, nullptr,        nullptr           },
+{   "r1",        nullptr, 4,  GPR_OFFSET(1),  eEncodingUint,    eFormatHex,           { ehframe_r1,          dwarf_r1,            LLDB_REGNUM_GENERIC_ARG2,   LLDB_INVALID_REGNUM, gpr_r1        }, nullptr,        nullptr           },
+{   "r2",        nullptr, 4,  GPR_OFFSET(2),  eEncodingUint,    eFormatHex,           { ehframe_r2,          dwarf_r2,            LLDB_REGNUM_GENERIC_ARG3,   LLDB_INVALID_REGNUM, gpr_r2        }, nullptr,        nullptr           },
+{   "r3",        nullptr, 4,  GPR_OFFSET(3),  eEncodingUint,    eFormatHex,           { ehframe_r3,          dwarf_r3,            LLDB_REGNUM_GENERIC_ARG4,   LLDB_INVALID_REGNUM, gpr_r3        }, nullptr,        nullptr           },
+{   "r4",        nullptr, 4,  GPR_OFFSET(4),  eEncodingUint,    eFormatHex,           { ehframe_r4,          dwarf_r4,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, gpr_r4        }, nullptr,        nullptr           },
+{   "r5",        nullptr, 4,  GPR_OFFSET(5),  eEncodingUint,    eFormatHex,           { ehframe_r5,          dwarf_r5,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, gpr_r5        }, nullptr,        nullptr           },
+{   "r6",        nullptr, 4,  GPR_OFFSET(6),  eEncodingUint,    eFormatHex,           { ehframe_r6,          dwarf_r6,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, gpr_r6        }, nullptr,        nullptr           },
+{   "r7",        nullptr, 4,  GPR_OFFSET(7),  eEncodingUint,    eFormatHex,           { ehframe_r7,          dwarf_r7,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, gpr_r7        }, nullptr,        nullptr           },
+{   "r8",        nullptr, 4,  GPR_OFFSET(8),  eEncodingUint,    eFormatHex,           { ehframe_r8,          dwarf_r8,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, gpr_r8        }, nullptr,        nullptr           },
+{   "r9",        nullptr, 4,  GPR_OFFSET(9),  eEncodingUint,    eFormatHex,           { ehframe_r9,          dwarf_r9,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, gpr_r9        }, nullptr,        nullptr           },
+{   "r10",       nullptr, 4,  GPR_OFFSET(10), eEncodingUint,    eFormatHex,           { ehframe_r10,         dwarf_r10,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, gpr_r10       }, nullptr,        nullptr           },
+{   "r11",       nullptr, 4,  GPR_OFFSET(11), eEncodingUint,    eFormatHex,           { ehframe_r11,         dwarf_r11,           LLDB_REGNUM_GENERIC_FP,     LLDB_INVALID_REGNUM, gpr_r11       }, nullptr,        nullptr           },
+{   "r12",       nullptr, 4,  GPR_OFFSET(12), eEncodingUint,    eFormatHex,           { ehframe_r12,         dwarf_r12,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, gpr_r12       }, nullptr,        nullptr           },
+{   "sp",        "r13",   4,  GPR_OFFSET(13), eEncodingUint,    eFormatHex,           { ehframe_sp,          dwarf_sp,            LLDB_REGNUM_GENERIC_SP,     LLDB_INVALID_REGNUM, gpr_sp        }, nullptr,        nullptr           },
+{   "lr",        "r14",   4,  GPR_OFFSET(14), eEncodingUint,    eFormatHex,           { ehframe_lr,          dwarf_lr,            LLDB_REGNUM_GENERIC_RA,     LLDB_INVALID_REGNUM, gpr_lr        }, nullptr,        nullptr           },
+{   "pc",        "r15",   4,  GPR_OFFSET(15), eEncodingUint,    eFormatHex,           { ehframe_pc,          dwarf_pc,            LLDB_REGNUM_GENERIC_PC,     LLDB_INVALID_REGNUM, gpr_pc        }, nullptr,        nullptr           },
+{   "cpsr",      "psr",   4,  GPR_OFFSET(16), eEncodingUint,    eFormatHex,           { ehframe_cpsr,        dwarf_cpsr,          LLDB_REGNUM_GENERIC_FLAGS,  LLDB_INVALID_REGNUM, gpr_cpsr      }, nullptr,        nullptr           },
+
+{   "s0",        nullptr, 4,  FPU_OFFSET(0),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s0,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s0        }, nullptr,        g_s0_invalidates  },
+{   "s1",        nullptr, 4,  FPU_OFFSET(1),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s1,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s1        }, nullptr,        g_s1_invalidates  },
+{   "s2",        nullptr, 4,  FPU_OFFSET(2),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s2,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s2        }, nullptr,        g_s2_invalidates  },
+{   "s3",        nullptr, 4,  FPU_OFFSET(3),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s3,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s3        }, nullptr,        g_s3_invalidates  },
+{   "s4",        nullptr, 4,  FPU_OFFSET(4),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s4,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s4        }, nullptr,        g_s4_invalidates  },
+{   "s5",        nullptr, 4,  FPU_OFFSET(5),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s5,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s5        }, nullptr,        g_s5_invalidates  },
+{   "s6",        nullptr, 4,  FPU_OFFSET(6),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s6,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s6        }, nullptr,        g_s6_invalidates  },
+{   "s7",        nullptr, 4,  FPU_OFFSET(7),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s7,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s7        }, nullptr,        g_s7_invalidates  },
+{   "s8",        nullptr, 4,  FPU_OFFSET(8),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s8,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s8        }, nullptr,        g_s8_invalidates  },
+{   "s9",        nullptr, 4,  FPU_OFFSET(9),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s9,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s9        }, nullptr,        g_s9_invalidates  },
+{   "s10",       nullptr, 4,  FPU_OFFSET(10), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s10,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s10       }, nullptr,        g_s10_invalidates },
+{   "s11",       nullptr, 4,  FPU_OFFSET(11), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s11,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s11       }, nullptr,        g_s11_invalidates },
+{   "s12",       nullptr, 4,  FPU_OFFSET(12), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s12,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s12       }, nullptr,        g_s12_invalidates },
+{   "s13",       nullptr, 4,  FPU_OFFSET(13), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s13,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s13       }, nullptr,        g_s13_invalidates },
+{   "s14",       nullptr, 4,  FPU_OFFSET(14), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s14,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s14       }, nullptr,        g_s14_invalidates },
+{   "s15",       nullptr, 4,  FPU_OFFSET(15), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s15,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s15       }, nullptr,        g_s15_invalidates },
+{   "s16",       nullptr, 4,  FPU_OFFSET(16), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s16,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s16       }, nullptr,        g_s16_invalidates },
+{   "s17",       nullptr, 4,  FPU_OFFSET(17), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s17,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s17       }, nullptr,        g_s17_invalidates },
+{   "s18",       nullptr, 4,  FPU_OFFSET(18), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s18,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s18       }, nullptr,        g_s18_invalidates },
+{   "s19",       nullptr, 4,  FPU_OFFSET(19), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s19,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s19       }, nullptr,        g_s19_invalidates },
+{   "s20",       nullptr, 4,  FPU_OFFSET(20), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s20,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s20       }, nullptr,        g_s20_invalidates },
+{   "s21",       nullptr, 4,  FPU_OFFSET(21), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s21,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s21       }, nullptr,        g_s21_invalidates },
+{   "s22",       nullptr, 4,  FPU_OFFSET(22), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s22,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s22       }, nullptr,        g_s22_invalidates },
+{   "s23",       nullptr, 4,  FPU_OFFSET(23), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s23,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s23       }, nullptr,        g_s23_invalidates },
+{   "s24",       nullptr, 4,  FPU_OFFSET(24), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s24,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s24       }, nullptr,        g_s24_invalidates },
+{   "s25",       nullptr, 4,  FPU_OFFSET(25), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s25,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s25       }, nullptr,        g_s25_invalidates },
+{   "s26",       nullptr, 4,  FPU_OFFSET(26), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s26,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s26       }, nullptr,        g_s26_invalidates },
+{   "s27",       nullptr, 4,  FPU_OFFSET(27), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s27,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s27       }, nullptr,        g_s27_invalidates },
+{   "s28",       nullptr, 4,  FPU_OFFSET(28), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s28,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s28       }, nullptr,        g_s28_invalidates },
+{   "s29",       nullptr, 4,  FPU_OFFSET(29), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s29,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s29       }, nullptr,        g_s29_invalidates },
+{   "s30",       nullptr, 4,  FPU_OFFSET(30), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s30,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s30       }, nullptr,        g_s30_invalidates },
+{   "s31",       nullptr, 4,  FPU_OFFSET(31), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_s31,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_s31       }, nullptr,        g_s31_invalidates },
+{   "fpscr",     nullptr, 4,  FPSCR_OFFSET,   eEncodingUint,    eFormatHex,           { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_fpscr     }, nullptr,        nullptr           },
+
+{   "d0",        nullptr, 8,  FPU_OFFSET(0),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d0,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d0        }, g_d0_contains,  g_d0_invalidates  },
+{   "d1",        nullptr, 8,  FPU_OFFSET(2),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d1,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d1        }, g_d1_contains,  g_d1_invalidates  },
+{   "d2",        nullptr, 8,  FPU_OFFSET(4),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d2,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d2        }, g_d2_contains,  g_d2_invalidates  },
+{   "d3",        nullptr, 8,  FPU_OFFSET(6),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d3,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d3        }, g_d3_contains,  g_d3_invalidates  },
+{   "d4",        nullptr, 8,  FPU_OFFSET(8),  eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d4,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d4        }, g_d4_contains,  g_d4_invalidates  },
+{   "d5",        nullptr, 8,  FPU_OFFSET(10), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d5,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d5        }, g_d5_contains,  g_d5_invalidates  },
+{   "d6",        nullptr, 8,  FPU_OFFSET(12), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d6,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d6        }, g_d6_contains,  g_d6_invalidates  },
+{   "d7",        nullptr, 8,  FPU_OFFSET(14), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d7,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d7        }, g_d7_contains,  g_d7_invalidates  },
+{   "d8",        nullptr, 8,  FPU_OFFSET(16), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d8,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d8        }, g_d8_contains,  g_d8_invalidates  },
+{   "d9",        nullptr, 8,  FPU_OFFSET(18), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d9,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d9        }, g_d9_contains,  g_d9_invalidates  },
+{   "d10",       nullptr, 8,  FPU_OFFSET(20), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d10,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d10       }, g_d10_contains, g_d10_invalidates },
+{   "d11",       nullptr, 8,  FPU_OFFSET(22), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d11,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d11       }, g_d11_contains, g_d11_invalidates },
+{   "d12",       nullptr, 8,  FPU_OFFSET(24), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d12,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d12       }, g_d12_contains, g_d12_invalidates },
+{   "d13",       nullptr, 8,  FPU_OFFSET(26), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d13,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d13       }, g_d13_contains, g_d13_invalidates },
+{   "d14",       nullptr, 8,  FPU_OFFSET(28), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d14,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d14       }, g_d14_contains, g_d14_invalidates },
+{   "d15",       nullptr, 8,  FPU_OFFSET(30), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d15,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d15       }, g_d15_contains, g_d15_invalidates },
+{   "d16",       nullptr, 8,  FPU_OFFSET(32), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d16,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d16       }, nullptr,        g_d16_invalidates },
+{   "d17",       nullptr, 8,  FPU_OFFSET(34), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d17,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d17       }, nullptr,        g_d17_invalidates },
+{   "d18",       nullptr, 8,  FPU_OFFSET(36), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d18,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d18       }, nullptr,        g_d18_invalidates },
+{   "d19",       nullptr, 8,  FPU_OFFSET(38), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d19,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d19       }, nullptr,        g_d19_invalidates },
+{   "d20",       nullptr, 8,  FPU_OFFSET(40), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d20,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d20       }, nullptr,        g_d20_invalidates },
+{   "d21",       nullptr, 8,  FPU_OFFSET(42), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d21,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d21       }, nullptr,        g_d21_invalidates },
+{   "d22",       nullptr, 8,  FPU_OFFSET(44), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d22,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d22       }, nullptr,        g_d22_invalidates },
+{   "d23",       nullptr, 8,  FPU_OFFSET(46), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d23,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d23       }, nullptr,        g_d23_invalidates },
+{   "d24",       nullptr, 8,  FPU_OFFSET(48), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d24,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d24       }, nullptr,        g_d24_invalidates },
+{   "d25",       nullptr, 8,  FPU_OFFSET(50), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d25,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d25       }, nullptr,        g_d25_invalidates },
+{   "d26",       nullptr, 8,  FPU_OFFSET(52), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d26,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d26       }, nullptr,        g_d26_invalidates },
+{   "d27",       nullptr, 8,  FPU_OFFSET(54), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d27,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d27       }, nullptr,        g_d27_invalidates },
+{   "d28",       nullptr, 8,  FPU_OFFSET(56), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d28,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d28       }, nullptr,        g_d28_invalidates },
+{   "d29",       nullptr, 8,  FPU_OFFSET(58), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d29,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d29       }, nullptr,        g_d29_invalidates },
+{   "d30",       nullptr, 8,  FPU_OFFSET(60), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d30,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d30       }, nullptr,        g_d30_invalidates },
+{   "d31",       nullptr, 8,  FPU_OFFSET(62), eEncodingIEEE754, eFormatFloat,         { LLDB_INVALID_REGNUM, dwarf_d31,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_d31       }, nullptr,        g_d31_invalidates },
+
+{   "q0",        nullptr, 16, FPU_OFFSET(0),  eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q0,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q0        }, g_q0_contains,  nullptr,          },
+{   "q1",        nullptr, 16, FPU_OFFSET(4),  eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q1,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q1        }, g_q1_contains,  nullptr,          },
+{   "q2",        nullptr, 16, FPU_OFFSET(8),  eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q2,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q2        }, g_q2_contains,  nullptr,          },
+{   "q3",        nullptr, 16, FPU_OFFSET(12), eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q3,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q3        }, g_q3_contains,  nullptr,          },
+{   "q4",        nullptr, 16, FPU_OFFSET(16), eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q4,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q4        }, g_q4_contains,  nullptr,          },
+{   "q5",        nullptr, 16, FPU_OFFSET(20), eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q5,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q5        }, g_q5_contains,  nullptr,          },
+{   "q6",        nullptr, 16, FPU_OFFSET(24), eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q6,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q6        }, g_q6_contains,  nullptr,          },
+{   "q7",        nullptr, 16, FPU_OFFSET(28), eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q7,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q7        }, g_q7_contains,  nullptr,          },
+{   "q8",        nullptr, 16, FPU_OFFSET(32), eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q8,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q8        }, g_q8_contains,  nullptr,          },
+{   "q9",        nullptr, 16, FPU_OFFSET(36), eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q9,            LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q9        }, g_q9_contains,  nullptr,          },
+{   "q10",       nullptr, 16, FPU_OFFSET(40), eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q10,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q10       }, g_q10_contains, nullptr,          },
+{   "q11",       nullptr, 16, FPU_OFFSET(44), eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q11,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q11       }, g_q11_contains, nullptr,          },
+{   "q12",       nullptr, 16, FPU_OFFSET(48), eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q12,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q12       }, g_q12_contains, nullptr,          },
+{   "q13",       nullptr, 16, FPU_OFFSET(52), eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q13,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q13       }, g_q13_contains, nullptr,          },
+{   "q14",       nullptr, 16, FPU_OFFSET(56), eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q14,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q14       }, g_q14_contains, nullptr,          },
+{   "q15",       nullptr, 16, FPU_OFFSET(60), eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q15,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, fpu_q15       }, g_q15_contains, nullptr,          },
+
+{   "exception", nullptr, 4,  EXC_OFFSET(0),  eEncodingUint,    eFormatHex,           { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, exc_exception }, nullptr,           nullptr        },
+{   "fsr",       nullptr, 4,  EXC_OFFSET(1),  eEncodingUint,    eFormatHex,           { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, exc_fsr       }, nullptr,           nullptr        },
+{   "far",       nullptr, 4,  EXC_OFFSET(2),  eEncodingUint,    eFormatHex,           { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM, exc_far       }, nullptr,           nullptr        },
 
 {   DEFINE_DBG (bvr, 0) },
 {   DEFINE_DBG (bvr, 1) },
diff --git a/source/Plugins/Process/Utility/RegisterInfos_arm64.h b/source/Plugins/Process/Utility/RegisterInfos_arm64.h
index 0255a3bc7d608..715321149a734 100644
--- a/source/Plugins/Process/Utility/RegisterInfos_arm64.h
+++ b/source/Plugins/Process/Utility/RegisterInfos_arm64.h
@@ -1,22 +1,26 @@
-//===-- RegisterInfos_arm64.h ----------------------------------*- C++ -*-===//
+//===-- RegisterInfos_arm64.h -----------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
-//===---------------------------------------------------------------------===//
+//===----------------------------------------------------------------------===//
 
 #ifdef DECLARE_REGISTER_INFOS_ARM64_STRUCT
 
+// C Includes
 #include <stddef.h>
 
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-private.h"
 #include "lldb/lldb-defines.h"
 #include "lldb/lldb-enumerations.h"
 
-#include "Utility/ARM64_GCC_Registers.h"
 #include "Utility/ARM64_DWARF_Registers.h"
+#include "Utility/ARM64_ehframe_Registers.h"
 
 #ifndef GPR_OFFSET
 #error GPR_OFFSET must be defined before including this header file
@@ -196,84 +200,84 @@ enum
 
 static lldb_private::RegisterInfo g_register_infos_arm64[] = {
 // General purpose registers
-//  NAME        ALT     SZ  OFFSET              ENCODING        FORMAT          COMPILER                DWARF               GENERIC                     GDB                     LLDB NATIVE   VALUE REGS    INVALIDATE REGS
-//  ======      ======= ==  =============       =============   ============    ===============         ===============     =========================   =====================   ============= ==========    ===============
-{   "x0",       NULL,   8,  GPR_OFFSET(0),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x0,               arm64_dwarf::x0,           LLDB_REGNUM_GENERIC_ARG1,   arm64_gcc::x0,             gpr_x0      },      NULL,              NULL},
-{   "x1",       NULL,   8,  GPR_OFFSET(1),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x1,               arm64_dwarf::x1,           LLDB_REGNUM_GENERIC_ARG2,   arm64_gcc::x1,             gpr_x1      },      NULL,              NULL},
-{   "x2",       NULL,   8,  GPR_OFFSET(2),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x2,               arm64_dwarf::x2,           LLDB_REGNUM_GENERIC_ARG3,   arm64_gcc::x2,             gpr_x2      },      NULL,              NULL},
-{   "x3",       NULL,   8,  GPR_OFFSET(3),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x3,               arm64_dwarf::x3,           LLDB_REGNUM_GENERIC_ARG4,   arm64_gcc::x3,             gpr_x3      },      NULL,              NULL},
-{   "x4",       NULL,   8,  GPR_OFFSET(4),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x4,               arm64_dwarf::x4,           LLDB_REGNUM_GENERIC_ARG5,   arm64_gcc::x4,             gpr_x4      },      NULL,              NULL},
-{   "x5",       NULL,   8,  GPR_OFFSET(5),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x5,               arm64_dwarf::x5,           LLDB_REGNUM_GENERIC_ARG6,   arm64_gcc::x5,             gpr_x5      },      NULL,              NULL},
-{   "x6",       NULL,   8,  GPR_OFFSET(6),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x6,               arm64_dwarf::x6,           LLDB_REGNUM_GENERIC_ARG7,   arm64_gcc::x6,             gpr_x6      },      NULL,              NULL},
-{   "x7",       NULL,   8,  GPR_OFFSET(7),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x7,               arm64_dwarf::x7,           LLDB_REGNUM_GENERIC_ARG8,   arm64_gcc::x7,             gpr_x7      },      NULL,              NULL},
-{   "x8",       NULL,   8,  GPR_OFFSET(8),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x8,               arm64_dwarf::x8,           LLDB_INVALID_REGNUM,        arm64_gcc::x8,             gpr_x8      },      NULL,              NULL},
-{   "x9",       NULL,   8,  GPR_OFFSET(9),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x9,               arm64_dwarf::x9,           LLDB_INVALID_REGNUM,        arm64_gcc::x9,             gpr_x9      },      NULL,              NULL},
-{   "x10",      NULL,   8,  GPR_OFFSET(10),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x10,              arm64_dwarf::x10,          LLDB_INVALID_REGNUM,        arm64_gcc::x10,            gpr_x10     },      NULL,              NULL},
-{   "x11",      NULL,   8,  GPR_OFFSET(11),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x11,              arm64_dwarf::x11,          LLDB_INVALID_REGNUM,        arm64_gcc::x11,            gpr_x11     },      NULL,              NULL},
-{   "x12",      NULL,   8,  GPR_OFFSET(12),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x12,              arm64_dwarf::x12,          LLDB_INVALID_REGNUM,        arm64_gcc::x12,            gpr_x12     },      NULL,              NULL},
-{   "x13",      NULL,   8,  GPR_OFFSET(13),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x13,              arm64_dwarf::x13,          LLDB_INVALID_REGNUM,        arm64_gcc::x13,            gpr_x13     },      NULL,              NULL},
-{   "x14",      NULL,   8,  GPR_OFFSET(14),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x14,              arm64_dwarf::x14,          LLDB_INVALID_REGNUM,        arm64_gcc::x14,            gpr_x14     },      NULL,              NULL},
-{   "x15",      NULL,   8,  GPR_OFFSET(15),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x15,              arm64_dwarf::x15,          LLDB_INVALID_REGNUM,        arm64_gcc::x15,            gpr_x15     },      NULL,              NULL},
-{   "x16",      NULL,   8,  GPR_OFFSET(16),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x16,              arm64_dwarf::x16,          LLDB_INVALID_REGNUM,        arm64_gcc::x16,            gpr_x16     },      NULL,              NULL},
-{   "x17",      NULL,   8,  GPR_OFFSET(17),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x17,              arm64_dwarf::x17,          LLDB_INVALID_REGNUM,        arm64_gcc::x17,            gpr_x17     },      NULL,              NULL},
-{   "x18",      NULL,   8,  GPR_OFFSET(18),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x18,              arm64_dwarf::x18,          LLDB_INVALID_REGNUM,        arm64_gcc::x18,            gpr_x18     },      NULL,              NULL},
-{   "x19",      NULL,   8,  GPR_OFFSET(19),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x19,              arm64_dwarf::x19,          LLDB_INVALID_REGNUM,        arm64_gcc::x19,            gpr_x19     },      NULL,              NULL},
-{   "x20",      NULL,   8,  GPR_OFFSET(20),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x20,              arm64_dwarf::x20,          LLDB_INVALID_REGNUM,        arm64_gcc::x20,            gpr_x20     },      NULL,              NULL},
-{   "x21",      NULL,   8,  GPR_OFFSET(21),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x21,              arm64_dwarf::x21,          LLDB_INVALID_REGNUM,        arm64_gcc::x21,            gpr_x21     },      NULL,              NULL},
-{   "x22",      NULL,   8,  GPR_OFFSET(22),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x22,              arm64_dwarf::x22,          LLDB_INVALID_REGNUM,        arm64_gcc::x22,            gpr_x22     },      NULL,              NULL},
-{   "x23",      NULL,   8,  GPR_OFFSET(23),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x23,              arm64_dwarf::x23,          LLDB_INVALID_REGNUM,        arm64_gcc::x23,            gpr_x23     },      NULL,              NULL},
-{   "x24",      NULL,   8,  GPR_OFFSET(24),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x24,              arm64_dwarf::x24,          LLDB_INVALID_REGNUM,        arm64_gcc::x24,            gpr_x24     },      NULL,              NULL},
-{   "x25",      NULL,   8,  GPR_OFFSET(25),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x25,              arm64_dwarf::x25,          LLDB_INVALID_REGNUM,        arm64_gcc::x25,            gpr_x25     },      NULL,              NULL},
-{   "x26",      NULL,   8,  GPR_OFFSET(26),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x26,              arm64_dwarf::x26,          LLDB_INVALID_REGNUM,        arm64_gcc::x26,            gpr_x26     },      NULL,              NULL},
-{   "x27",      NULL,   8,  GPR_OFFSET(27),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x27,              arm64_dwarf::x27,          LLDB_INVALID_REGNUM,        arm64_gcc::x27,            gpr_x27     },      NULL,              NULL},
-{   "x28",      NULL,   8,  GPR_OFFSET(28),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::x28,              arm64_dwarf::x28,          LLDB_INVALID_REGNUM,        arm64_gcc::x28,            gpr_x28     },      NULL,              NULL},
+//  NAME        ALT     SZ  OFFSET              ENCODING                FORMAT                 EH_FRAME                     DWARF                      GENERIC                     PROCESS PLUGIN          LLDB NATIVE   VALUE REGS    INVALIDATE REGS
+//  ======      ======= ==  =============       =============         ============            ===============              ===============            =========================   =====================   ============= ==========    ===============
+{   "x0",       nullptr,  8,  GPR_OFFSET(0),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x0,           arm64_dwarf::x0,           LLDB_REGNUM_GENERIC_ARG1,   LLDB_INVALID_REGNUM,       gpr_x0      },      nullptr,        nullptr},
+{   "x1",       nullptr,  8,  GPR_OFFSET(1),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x1,           arm64_dwarf::x1,           LLDB_REGNUM_GENERIC_ARG2,   LLDB_INVALID_REGNUM,       gpr_x1      },      nullptr,        nullptr},
+{   "x2",       nullptr,  8,  GPR_OFFSET(2),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x2,           arm64_dwarf::x2,           LLDB_REGNUM_GENERIC_ARG3,   LLDB_INVALID_REGNUM,       gpr_x2      },      nullptr,        nullptr},
+{   "x3",       nullptr,  8,  GPR_OFFSET(3),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x3,           arm64_dwarf::x3,           LLDB_REGNUM_GENERIC_ARG4,   LLDB_INVALID_REGNUM,       gpr_x3      },      nullptr,        nullptr},
+{   "x4",       nullptr,  8,  GPR_OFFSET(4),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x4,           arm64_dwarf::x4,           LLDB_REGNUM_GENERIC_ARG5,   LLDB_INVALID_REGNUM,       gpr_x4      },      nullptr,        nullptr},
+{   "x5",       nullptr,  8,  GPR_OFFSET(5),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x5,           arm64_dwarf::x5,           LLDB_REGNUM_GENERIC_ARG6,   LLDB_INVALID_REGNUM,       gpr_x5      },      nullptr,        nullptr},
+{   "x6",       nullptr,  8,  GPR_OFFSET(6),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x6,           arm64_dwarf::x6,           LLDB_REGNUM_GENERIC_ARG7,   LLDB_INVALID_REGNUM,       gpr_x6      },      nullptr,        nullptr},
+{   "x7",       nullptr,  8,  GPR_OFFSET(7),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x7,           arm64_dwarf::x7,           LLDB_REGNUM_GENERIC_ARG8,   LLDB_INVALID_REGNUM,       gpr_x7      },      nullptr,        nullptr},
+{   "x8",       nullptr,  8,  GPR_OFFSET(8),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x8,           arm64_dwarf::x8,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x8      },      nullptr,        nullptr},
+{   "x9",       nullptr,  8,  GPR_OFFSET(9),      lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x9,           arm64_dwarf::x9,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x9      },      nullptr,        nullptr},
+{   "x10",      nullptr,  8,  GPR_OFFSET(10),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x10,          arm64_dwarf::x10,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x10     },      nullptr,        nullptr},
+{   "x11",      nullptr,  8,  GPR_OFFSET(11),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x11,          arm64_dwarf::x11,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x11     },      nullptr,        nullptr},
+{   "x12",      nullptr,  8,  GPR_OFFSET(12),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x12,          arm64_dwarf::x12,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x12     },      nullptr,        nullptr},
+{   "x13",      nullptr,  8,  GPR_OFFSET(13),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x13,          arm64_dwarf::x13,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x13     },      nullptr,        nullptr},
+{   "x14",      nullptr,  8,  GPR_OFFSET(14),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x14,          arm64_dwarf::x14,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x14     },      nullptr,        nullptr},
+{   "x15",      nullptr,  8,  GPR_OFFSET(15),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x15,          arm64_dwarf::x15,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x15     },      nullptr,        nullptr},
+{   "x16",      nullptr,  8,  GPR_OFFSET(16),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x16,          arm64_dwarf::x16,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x16     },      nullptr,        nullptr},
+{   "x17",      nullptr,  8,  GPR_OFFSET(17),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x17,          arm64_dwarf::x17,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x17     },      nullptr,        nullptr},
+{   "x18",      nullptr,  8,  GPR_OFFSET(18),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x18,          arm64_dwarf::x18,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x18     },      nullptr,        nullptr},
+{   "x19",      nullptr,  8,  GPR_OFFSET(19),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x19,          arm64_dwarf::x19,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x19     },      nullptr,        nullptr},
+{   "x20",      nullptr,  8,  GPR_OFFSET(20),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x20,          arm64_dwarf::x20,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x20     },      nullptr,        nullptr},
+{   "x21",      nullptr,  8,  GPR_OFFSET(21),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x21,          arm64_dwarf::x21,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x21     },      nullptr,        nullptr},
+{   "x22",      nullptr,  8,  GPR_OFFSET(22),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x22,          arm64_dwarf::x22,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x22     },      nullptr,        nullptr},
+{   "x23",      nullptr,  8,  GPR_OFFSET(23),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x23,          arm64_dwarf::x23,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x23     },      nullptr,        nullptr},
+{   "x24",      nullptr,  8,  GPR_OFFSET(24),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x24,          arm64_dwarf::x24,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x24     },      nullptr,        nullptr},
+{   "x25",      nullptr,  8,  GPR_OFFSET(25),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x25,          arm64_dwarf::x25,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x25     },      nullptr,        nullptr},
+{   "x26",      nullptr,  8,  GPR_OFFSET(26),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x26,          arm64_dwarf::x26,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x26     },      nullptr,        nullptr},
+{   "x27",      nullptr,  8,  GPR_OFFSET(27),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x27,          arm64_dwarf::x27,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x27     },      nullptr,        nullptr},
+{   "x28",      nullptr,  8,  GPR_OFFSET(28),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::x28,          arm64_dwarf::x28,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       gpr_x28     },      nullptr,        nullptr},
 
-{   "fp",       "x29",  8,  GPR_OFFSET(29),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::fp,               arm64_dwarf::fp,           LLDB_REGNUM_GENERIC_FP,     arm64_gcc::fp,             gpr_fp      },      NULL,              NULL},
-{   "lr",       "x30",  8,  GPR_OFFSET(30),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::lr,               arm64_dwarf::lr,           LLDB_REGNUM_GENERIC_RA,     arm64_gcc::lr,             gpr_lr      },      NULL,              NULL},
-{   "sp",       "x31",  8,  GPR_OFFSET(31),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::sp,               arm64_dwarf::sp,           LLDB_REGNUM_GENERIC_SP,     arm64_gcc::sp,             gpr_sp      },      NULL,              NULL},
-{   "pc",       NULL,   8,  GPR_OFFSET(32),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_gcc::pc,               arm64_dwarf::pc,           LLDB_REGNUM_GENERIC_PC,     arm64_gcc::pc,             gpr_pc      },      NULL,              NULL},
+{   "fp",       "x29",    8,  GPR_OFFSET(29),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::fp,           arm64_dwarf::fp,           LLDB_REGNUM_GENERIC_FP,     LLDB_INVALID_REGNUM,       gpr_fp      },      nullptr,        nullptr},
+{   "lr",       "x30",    8,  GPR_OFFSET(30),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::lr,           arm64_dwarf::lr,           LLDB_REGNUM_GENERIC_RA,     LLDB_INVALID_REGNUM,       gpr_lr      },      nullptr,        nullptr},
+{   "sp",       "x31",    8,  GPR_OFFSET(31),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::sp,           arm64_dwarf::sp,           LLDB_REGNUM_GENERIC_SP,     LLDB_INVALID_REGNUM,       gpr_sp      },      nullptr,        nullptr},
+{   "pc",       nullptr,  8,  GPR_OFFSET(32),     lldb::eEncodingUint,  lldb::eFormatHex,     { arm64_ehframe::pc,           arm64_dwarf::pc,           LLDB_REGNUM_GENERIC_PC,     LLDB_INVALID_REGNUM,       gpr_pc      },      nullptr,        nullptr},
 
-{   "cpsr",     NULL,   4,  GPR_OFFSET_NAME(cpsr), lldb::eEncodingUint,  lldb::eFormatHex,  { arm64_gcc::cpsr,             arm64_dwarf::cpsr,         LLDB_REGNUM_GENERIC_FLAGS,  arm64_gcc::cpsr,           gpr_cpsr    },      NULL,              NULL},
+{   "cpsr",     nullptr,  4,  GPR_OFFSET_NAME(cpsr), lldb::eEncodingUint,  lldb::eFormatHex,  { arm64_ehframe::cpsr,         arm64_dwarf::cpsr,         LLDB_REGNUM_GENERIC_FLAGS,  LLDB_INVALID_REGNUM,       gpr_cpsr    },      nullptr,        nullptr},
 
-{   "v0",       NULL,  16,  FPU_OFFSET(0),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v0,           LLDB_INVALID_REGNUM,        arm64_gcc::v0,             fpu_v0      },      NULL,              NULL},
-{   "v1",       NULL,  16,  FPU_OFFSET(1),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v1,           LLDB_INVALID_REGNUM,        arm64_gcc::v1,             fpu_v1      },      NULL,              NULL},
-{   "v2",       NULL,  16,  FPU_OFFSET(2),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v2,           LLDB_INVALID_REGNUM,        arm64_gcc::v2,             fpu_v2      },      NULL,              NULL},
-{   "v3",       NULL,  16,  FPU_OFFSET(3),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v3,           LLDB_INVALID_REGNUM,        arm64_gcc::v3,             fpu_v3      },      NULL,              NULL},
-{   "v4",       NULL,  16,  FPU_OFFSET(4),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v4,           LLDB_INVALID_REGNUM,        arm64_gcc::v4,             fpu_v4      },      NULL,              NULL},
-{   "v5",       NULL,  16,  FPU_OFFSET(5),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v5,           LLDB_INVALID_REGNUM,        arm64_gcc::v5,             fpu_v5      },      NULL,              NULL},
-{   "v6",       NULL,  16,  FPU_OFFSET(6),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v6,           LLDB_INVALID_REGNUM,        arm64_gcc::v6,             fpu_v6      },      NULL,              NULL},
-{   "v7",       NULL,  16,  FPU_OFFSET(7),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v7,           LLDB_INVALID_REGNUM,        arm64_gcc::v7,             fpu_v7      },      NULL,              NULL},
-{   "v8",       NULL,  16,  FPU_OFFSET(8),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v8,           LLDB_INVALID_REGNUM,        arm64_gcc::v8,             fpu_v8      },      NULL,              NULL},
-{   "v9",       NULL,  16,  FPU_OFFSET(9),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v9,           LLDB_INVALID_REGNUM,        arm64_gcc::v9,             fpu_v9      },      NULL,              NULL},
-{   "v10",      NULL,  16,  FPU_OFFSET(10),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v10,          LLDB_INVALID_REGNUM,        arm64_gcc::v10,            fpu_v10     },      NULL,              NULL},
-{   "v11",      NULL,  16,  FPU_OFFSET(11),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v11,          LLDB_INVALID_REGNUM,        arm64_gcc::v11,            fpu_v11     },      NULL,              NULL},
-{   "v12",      NULL,  16,  FPU_OFFSET(12),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v12,          LLDB_INVALID_REGNUM,        arm64_gcc::v12,            fpu_v12     },      NULL,              NULL},
-{   "v13",      NULL,  16,  FPU_OFFSET(13),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v13,          LLDB_INVALID_REGNUM,        arm64_gcc::v13,            fpu_v13     },      NULL,              NULL},
-{   "v14",      NULL,  16,  FPU_OFFSET(14),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v14,          LLDB_INVALID_REGNUM,        arm64_gcc::v14,            fpu_v14     },      NULL,              NULL},
-{   "v15",      NULL,  16,  FPU_OFFSET(15),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v15,          LLDB_INVALID_REGNUM,        arm64_gcc::v15,            fpu_v15     },      NULL,              NULL},
-{   "v16",      NULL,  16,  FPU_OFFSET(16),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v16,          LLDB_INVALID_REGNUM,        arm64_gcc::v16,            fpu_v16     },      NULL,              NULL},
-{   "v17",      NULL,  16,  FPU_OFFSET(17),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v17,          LLDB_INVALID_REGNUM,        arm64_gcc::v17,            fpu_v17     },      NULL,              NULL},
-{   "v18",      NULL,  16,  FPU_OFFSET(18),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v18,          LLDB_INVALID_REGNUM,        arm64_gcc::v18,            fpu_v18     },      NULL,              NULL},
-{   "v19",      NULL,  16,  FPU_OFFSET(19),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v19,          LLDB_INVALID_REGNUM,        arm64_gcc::v19,            fpu_v19     },      NULL,              NULL},
-{   "v20",      NULL,  16,  FPU_OFFSET(20),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v20,          LLDB_INVALID_REGNUM,        arm64_gcc::v20,            fpu_v20     },      NULL,              NULL},
-{   "v21",      NULL,  16,  FPU_OFFSET(21),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v21,          LLDB_INVALID_REGNUM,        arm64_gcc::v21,            fpu_v21     },      NULL,              NULL},
-{   "v22",      NULL,  16,  FPU_OFFSET(22),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v22,          LLDB_INVALID_REGNUM,        arm64_gcc::v22,            fpu_v22     },      NULL,              NULL},
-{   "v23",      NULL,  16,  FPU_OFFSET(23),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v23,          LLDB_INVALID_REGNUM,        arm64_gcc::v23,            fpu_v23     },      NULL,              NULL},
-{   "v24",      NULL,  16,  FPU_OFFSET(24),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v24,          LLDB_INVALID_REGNUM,        arm64_gcc::v24,            fpu_v24     },      NULL,              NULL},
-{   "v25",      NULL,  16,  FPU_OFFSET(25),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v25,          LLDB_INVALID_REGNUM,        arm64_gcc::v25,            fpu_v25     },      NULL,              NULL},
-{   "v26",      NULL,  16,  FPU_OFFSET(26),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v26,          LLDB_INVALID_REGNUM,        arm64_gcc::v26,            fpu_v26     },      NULL,              NULL},
-{   "v27",      NULL,  16,  FPU_OFFSET(27),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v27,          LLDB_INVALID_REGNUM,        arm64_gcc::v27,            fpu_v27     },      NULL,              NULL},
-{   "v28",      NULL,  16,  FPU_OFFSET(28),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v28,          LLDB_INVALID_REGNUM,        arm64_gcc::v28,            fpu_v28     },      NULL,              NULL},
-{   "v29",      NULL,  16,  FPU_OFFSET(29),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v29,          LLDB_INVALID_REGNUM,        arm64_gcc::v29,            fpu_v29     },      NULL,              NULL},
-{   "v30",      NULL,  16,  FPU_OFFSET(30),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v30,          LLDB_INVALID_REGNUM,        arm64_gcc::v30,            fpu_v30     },      NULL,              NULL},
-{   "v31",      NULL,  16,  FPU_OFFSET(31),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v31,          LLDB_INVALID_REGNUM,        arm64_gcc::v31,            fpu_v31     },      NULL,              NULL},
+{   "v0",       nullptr, 16,  FPU_OFFSET(0),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v0,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v0      },      nullptr,        nullptr},
+{   "v1",       nullptr, 16,  FPU_OFFSET(1),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v1,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v1      },      nullptr,        nullptr},
+{   "v2",       nullptr, 16,  FPU_OFFSET(2),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v2,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v2      },      nullptr,        nullptr},
+{   "v3",       nullptr, 16,  FPU_OFFSET(3),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v3,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v3      },      nullptr,        nullptr},
+{   "v4",       nullptr, 16,  FPU_OFFSET(4),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v4,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v4      },      nullptr,        nullptr},
+{   "v5",       nullptr, 16,  FPU_OFFSET(5),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v5,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v5      },      nullptr,        nullptr},
+{   "v6",       nullptr, 16,  FPU_OFFSET(6),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v6,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v6      },      nullptr,        nullptr},
+{   "v7",       nullptr, 16,  FPU_OFFSET(7),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v7,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v7      },      nullptr,        nullptr},
+{   "v8",       nullptr, 16,  FPU_OFFSET(8),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v8,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v8      },      nullptr,        nullptr},
+{   "v9",       nullptr, 16,  FPU_OFFSET(9),      lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v9,           LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v9      },      nullptr,        nullptr},
+{   "v10",      nullptr, 16,  FPU_OFFSET(10),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v10,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v10     },      nullptr,        nullptr},
+{   "v11",      nullptr, 16,  FPU_OFFSET(11),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v11,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v11     },      nullptr,        nullptr},
+{   "v12",      nullptr, 16,  FPU_OFFSET(12),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v12,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v12     },      nullptr,        nullptr},
+{   "v13",      nullptr, 16,  FPU_OFFSET(13),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v13,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v13     },      nullptr,        nullptr},
+{   "v14",      nullptr, 16,  FPU_OFFSET(14),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v14,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v14     },      nullptr,        nullptr},
+{   "v15",      nullptr, 16,  FPU_OFFSET(15),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v15,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v15     },      nullptr,        nullptr},
+{   "v16",      nullptr, 16,  FPU_OFFSET(16),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v16,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v16     },      nullptr,        nullptr},
+{   "v17",      nullptr, 16,  FPU_OFFSET(17),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v17,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v17     },      nullptr,        nullptr},
+{   "v18",      nullptr, 16,  FPU_OFFSET(18),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v18,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v18     },      nullptr,        nullptr},
+{   "v19",      nullptr, 16,  FPU_OFFSET(19),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v19,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v19     },      nullptr,        nullptr},
+{   "v20",      nullptr, 16,  FPU_OFFSET(20),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v20,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v20     },      nullptr,        nullptr},
+{   "v21",      nullptr, 16,  FPU_OFFSET(21),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v21,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v21     },      nullptr,        nullptr},
+{   "v22",      nullptr, 16,  FPU_OFFSET(22),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v22,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v22     },      nullptr,        nullptr},
+{   "v23",      nullptr, 16,  FPU_OFFSET(23),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v23,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v23     },      nullptr,        nullptr},
+{   "v24",      nullptr, 16,  FPU_OFFSET(24),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v24,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v24     },      nullptr,        nullptr},
+{   "v25",      nullptr, 16,  FPU_OFFSET(25),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v25,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v25     },      nullptr,        nullptr},
+{   "v26",      nullptr, 16,  FPU_OFFSET(26),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v26,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v26     },      nullptr,        nullptr},
+{   "v27",      nullptr, 16,  FPU_OFFSET(27),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v27,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v27     },      nullptr,        nullptr},
+{   "v28",      nullptr, 16,  FPU_OFFSET(28),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v28,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v28     },      nullptr,        nullptr},
+{   "v29",      nullptr, 16,  FPU_OFFSET(29),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v29,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v29     },      nullptr,        nullptr},
+{   "v30",      nullptr, 16,  FPU_OFFSET(30),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v30,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v30     },      nullptr,        nullptr},
+{   "v31",      nullptr, 16,  FPU_OFFSET(31),     lldb::eEncodingVector, lldb::eFormatVectorOfUInt8,  { LLDB_INVALID_REGNUM,  arm64_dwarf::v31,          LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,       fpu_v31     },      nullptr,        nullptr},
 
-{   "fpsr",    NULL,   4,  FPU_OFFSET_NAME(fpsr),     lldb::eEncodingUint,  lldb::eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,  fpu_fpsr   },      NULL,              NULL},
-{   "fpcr",    NULL,   4,  FPU_OFFSET_NAME(fpcr),     lldb::eEncodingUint,  lldb::eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,  fpu_fpcr   },      NULL,              NULL},
+{   "fpsr",     nullptr,  4,  FPU_OFFSET_NAME(fpsr),     lldb::eEncodingUint,  lldb::eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,  fpu_fpsr   },      nullptr,        nullptr},
+{   "fpcr",     nullptr,  4,  FPU_OFFSET_NAME(fpcr),     lldb::eEncodingUint,  lldb::eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,  fpu_fpcr   },      nullptr,        nullptr},
 
-{   "far",      NULL,   8,  EXC_OFFSET_NAME(far),       lldb::eEncodingUint,  lldb::eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    exc_far       },    NULL,              NULL},
-{   "esr",      NULL,   4,  EXC_OFFSET_NAME(esr),       lldb::eEncodingUint,  lldb::eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    exc_esr       },    NULL,              NULL},
-{   "exception",NULL,   4,  EXC_OFFSET_NAME(exception), lldb::eEncodingUint,  lldb::eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    exc_exception },    NULL,              NULL},
+{   "far",      nullptr,  8,  EXC_OFFSET_NAME(far),       lldb::eEncodingUint,  lldb::eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    exc_far       },    nullptr,        nullptr},
+{   "esr",      nullptr,  4,  EXC_OFFSET_NAME(esr),       lldb::eEncodingUint,  lldb::eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    exc_esr       },    nullptr,        nullptr},
+{   "exception",nullptr,  4,  EXC_OFFSET_NAME(exception), lldb::eEncodingUint,  lldb::eFormatHex,     { LLDB_INVALID_REGNUM,  LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM,    exc_exception },    nullptr,        nullptr},
 
 {   DEFINE_DBG (bvr, 0) },
 {   DEFINE_DBG (bvr, 1) },
diff --git a/source/Plugins/Process/Utility/RegisterInfos_i386.h b/source/Plugins/Process/Utility/RegisterInfos_i386.h
index 69825362134b0..904ec4d1f0bdd 100644
--- a/source/Plugins/Process/Utility/RegisterInfos_i386.h
+++ b/source/Plugins/Process/Utility/RegisterInfos_i386.h
@@ -1,15 +1,21 @@
-//===-- RegisterInfos_i386.h -----------------------------------*- C++ -*-===//
+//===-- RegisterInfos_i386.h ------------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
-//===---------------------------------------------------------------------===//
-#include "llvm/Support/Compiler.h"
+//===----------------------------------------------------------------------===//
 
+// C Includes
 #include <stddef.h>
 
+// C++ Includes
+// Other libraries and framework includes
+#include "llvm/Support/Compiler.h"
+
+// Project includes
+
 #ifdef DECLARE_REGISTER_INFOS_I386_STRUCT
 
 // Computes the offset of the given GPR in the user data area.
@@ -52,31 +58,31 @@
     { #name, NULL, FPR_SIZE(reg), FPR_OFFSET(reg), eEncodingUint,   \
       eFormatHex, { kind1, kind2, kind3, kind4, lldb_##name##_i386 }, NULL, NULL }
 
-// RegisterKind: GCC, DWARF, Generic, GDB, LLDB
+// RegisterKind: EHFrame, DWARF, Generic, Process Plugin, LLDB
 
 #define DEFINE_FP_ST(reg, i)                                       \
     { #reg#i, NULL, FP_SIZE, LLVM_EXTENSION FPR_OFFSET(stmm[i]),    \
       eEncodingVector, eFormatVectorOfUInt8,                       \
-      { gcc_st##i##_i386, dwarf_st##i##_i386, LLDB_INVALID_REGNUM, gdb_st##i##_i386, lldb_st##i##_i386 }, \
+      { ehframe_st##i##_i386, dwarf_st##i##_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_st##i##_i386 }, \
       NULL, NULL }
 
 #define DEFINE_FP_MM(reg, i)                                                \
     { #reg#i, NULL, sizeof(uint64_t), LLVM_EXTENSION FPR_OFFSET(stmm[i]),   \
       eEncodingUint, eFormatHex,                                            \
-      { gcc_mm##i##_i386, dwarf_mm##i##_i386, LLDB_INVALID_REGNUM, gdb_mm##i##_i386, lldb_mm##i##_i386 }, \
+      { ehframe_mm##i##_i386, dwarf_mm##i##_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_mm##i##_i386 }, \
       NULL, NULL }
 
 #define DEFINE_XMM(reg, i)                                         \
     { #reg#i, NULL, XMM_SIZE, LLVM_EXTENSION FPR_OFFSET(reg[i]),   \
       eEncodingVector, eFormatVectorOfUInt8,                       \
-      { gcc_##reg##i##_i386, dwarf_##reg##i##_i386, LLDB_INVALID_REGNUM, gdb_##reg##i##_i386, lldb_##reg##i##_i386}, \
+      { ehframe_##reg##i##_i386, dwarf_##reg##i##_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_##reg##i##_i386}, \
       NULL, NULL }
 
 // I believe the YMM registers use dwarf_xmm_%_i386 register numbers and then differentiate based on register size.
 #define DEFINE_YMM(reg, i)                                         \
     { #reg#i, NULL, YMM_SIZE, LLVM_EXTENSION YMM_OFFSET(i),        \
       eEncodingVector, eFormatVectorOfUInt8,                       \
-      { LLDB_INVALID_REGNUM, dwarf_xmm##i##_i386, LLDB_INVALID_REGNUM, gdb_##reg##i##h_i386, lldb_##reg##i##_i386 }, \
+      { LLDB_INVALID_REGNUM, dwarf_xmm##i##_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_##reg##i##_i386 }, \
       NULL, NULL }
 
 #define DEFINE_DR(reg, i)                                               \
@@ -98,22 +104,22 @@ static RegisterInfo
 g_register_infos_i386[] =
 {
     // General purpose registers.
-    DEFINE_GPR(eax,    NULL,    gcc_eax_i386,        dwarf_eax_i386,      LLDB_INVALID_REGNUM,       gdb_eax_i386),
-    DEFINE_GPR(ebx,    NULL,    gcc_ebx_i386,        dwarf_ebx_i386,      LLDB_INVALID_REGNUM,       gdb_ebx_i386),
-    DEFINE_GPR(ecx,    NULL,    gcc_ecx_i386,        dwarf_ecx_i386,      LLDB_INVALID_REGNUM,       gdb_ecx_i386),
-    DEFINE_GPR(edx,    NULL,    gcc_edx_i386,        dwarf_edx_i386,      LLDB_INVALID_REGNUM,       gdb_edx_i386),
-    DEFINE_GPR(edi,    NULL,    gcc_edi_i386,        dwarf_edi_i386,      LLDB_INVALID_REGNUM,       gdb_edi_i386),
-    DEFINE_GPR(esi,    NULL,    gcc_esi_i386,        dwarf_esi_i386,      LLDB_INVALID_REGNUM,       gdb_esi_i386),
-    DEFINE_GPR(ebp,    "fp",    gcc_ebp_i386,        dwarf_ebp_i386,      LLDB_REGNUM_GENERIC_FP,    gdb_ebp_i386),
-    DEFINE_GPR(esp,    "sp",    gcc_esp_i386,        dwarf_esp_i386,      LLDB_REGNUM_GENERIC_SP,    gdb_esp_i386),
-    DEFINE_GPR(eip,    "pc",    gcc_eip_i386,        dwarf_eip_i386,      LLDB_REGNUM_GENERIC_PC,    gdb_eip_i386),
-    DEFINE_GPR(eflags, "flags", gcc_eflags_i386,     dwarf_eflags_i386,   LLDB_REGNUM_GENERIC_FLAGS, gdb_eflags_i386),
-    DEFINE_GPR(cs,     NULL,    LLDB_INVALID_REGNUM, dwarf_cs_i386,       LLDB_INVALID_REGNUM,       gdb_cs_i386),
-    DEFINE_GPR(fs,     NULL,    LLDB_INVALID_REGNUM, dwarf_fs_i386,       LLDB_INVALID_REGNUM,       gdb_fs_i386),
-    DEFINE_GPR(gs,     NULL,    LLDB_INVALID_REGNUM, dwarf_gs_i386,       LLDB_INVALID_REGNUM,       gdb_gs_i386),
-    DEFINE_GPR(ss,     NULL,    LLDB_INVALID_REGNUM, dwarf_ss_i386,       LLDB_INVALID_REGNUM,       gdb_ss_i386),
-    DEFINE_GPR(ds,     NULL,    LLDB_INVALID_REGNUM, dwarf_ds_i386,       LLDB_INVALID_REGNUM,       gdb_ds_i386),
-    DEFINE_GPR(es,     NULL,    LLDB_INVALID_REGNUM, dwarf_es_i386,       LLDB_INVALID_REGNUM,       gdb_es_i386),
+    DEFINE_GPR(eax,    nullptr, ehframe_eax_i386,    dwarf_eax_i386,      LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(ebx,    nullptr, ehframe_ebx_i386,    dwarf_ebx_i386,      LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(ecx,    nullptr, ehframe_ecx_i386,    dwarf_ecx_i386,      LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(edx,    nullptr, ehframe_edx_i386,    dwarf_edx_i386,      LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(edi,    nullptr, ehframe_edi_i386,    dwarf_edi_i386,      LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(esi,    nullptr, ehframe_esi_i386,    dwarf_esi_i386,      LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(ebp,    "fp",    ehframe_ebp_i386,    dwarf_ebp_i386,      LLDB_REGNUM_GENERIC_FP,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(esp,    "sp",    ehframe_esp_i386,    dwarf_esp_i386,      LLDB_REGNUM_GENERIC_SP,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(eip,    "pc",    ehframe_eip_i386,    dwarf_eip_i386,      LLDB_REGNUM_GENERIC_PC,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(eflags, "flags", ehframe_eflags_i386, dwarf_eflags_i386,   LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(cs,     nullptr, LLDB_INVALID_REGNUM, dwarf_cs_i386,       LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(fs,     nullptr, LLDB_INVALID_REGNUM, dwarf_fs_i386,       LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(gs,     nullptr, LLDB_INVALID_REGNUM, dwarf_gs_i386,       LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(ss,     nullptr, LLDB_INVALID_REGNUM, dwarf_ss_i386,       LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(ds,     nullptr, LLDB_INVALID_REGNUM, dwarf_ds_i386,       LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(es,     nullptr, LLDB_INVALID_REGNUM, dwarf_es_i386,       LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
 
     DEFINE_GPR_PSEUDO_16(ax,  eax),
     DEFINE_GPR_PSEUDO_16(bx,  ebx),
@@ -133,15 +139,15 @@ g_register_infos_i386[] =
     DEFINE_GPR_PSEUDO_8L(dl,  edx),
 
     // i387 Floating point registers.
-    DEFINE_FPR(fctrl,     fctrl,          LLDB_INVALID_REGNUM, dwarf_fctrl_i386,    LLDB_INVALID_REGNUM, gdb_fctrl_i386),
-    DEFINE_FPR(fstat,     fstat,          LLDB_INVALID_REGNUM, dwarf_fstat_i386,    LLDB_INVALID_REGNUM, gdb_fstat_i386),
-    DEFINE_FPR(ftag,      ftag,           LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, gdb_ftag_i386),
-    DEFINE_FPR(fop,       fop,            LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, gdb_fop_i386),
-    DEFINE_FPR(fiseg,     ptr.i386_.fiseg, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, gdb_fiseg_i386),
-    DEFINE_FPR(fioff,     ptr.i386_.fioff, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, gdb_fioff_i386),
-    DEFINE_FPR(foseg,     ptr.i386_.foseg, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, gdb_foseg_i386),
-    DEFINE_FPR(fooff,     ptr.i386_.fooff, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, gdb_fooff_i386),
-    DEFINE_FPR(mxcsr,     mxcsr,          LLDB_INVALID_REGNUM, dwarf_mxcsr_i386,    LLDB_INVALID_REGNUM, gdb_mxcsr_i386),
+    DEFINE_FPR(fctrl,     fctrl,          LLDB_INVALID_REGNUM, dwarf_fctrl_i386,    LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(fstat,     fstat,          LLDB_INVALID_REGNUM, dwarf_fstat_i386,    LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(ftag,      ftag,           LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(fop,       fop,            LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(fiseg,     ptr.i386_.fiseg, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(fioff,     ptr.i386_.fioff, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(foseg,     ptr.i386_.foseg, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(fooff,     ptr.i386_.fooff, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(mxcsr,     mxcsr,          LLDB_INVALID_REGNUM, dwarf_mxcsr_i386,    LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
     DEFINE_FPR(mxcsrmask, mxcsrmask,      LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
 
     // FP registers.
@@ -192,6 +198,7 @@ g_register_infos_i386[] =
     DEFINE_DR(dr, 6),
     DEFINE_DR(dr, 7)
 };
+
 static_assert((sizeof(g_register_infos_i386) / sizeof(g_register_infos_i386[0])) == k_num_registers_i386,
     "g_register_infos_x86_64 has wrong number of register infos");
 
diff --git a/source/Plugins/Process/Utility/RegisterInfos_mips.h b/source/Plugins/Process/Utility/RegisterInfos_mips.h
index 83ce6f0d4327a..eef27f0208e03 100644
--- a/source/Plugins/Process/Utility/RegisterInfos_mips.h
+++ b/source/Plugins/Process/Utility/RegisterInfos_mips.h
@@ -6,10 +6,16 @@
 // License. See LICENSE.TXT for details.
 //
 //===---------------------------------------------------------------------===//
-#include "llvm/Support/Compiler.h"
 
+// C Includes
 #include <stddef.h>
 
+// C++ Includes
+// Other libraries and framework includes
+#include "llvm/Support/Compiler.h"
+
+// Project includes
+
 #ifdef DECLARE_REGISTER_INFOS_MIPS_STRUCT
 
 // Computes the offset of the given GPR in the user data area.
@@ -44,123 +50,124 @@
     { #reg, alt, sizeof(((MSA_linux_mips*)0)->reg), MSA_OFFSET(reg), eEncodingUint, \
       eFormatHex, { kind1, kind2, kind3, kind4, msa_##reg##_mips }, NULL, NULL }
 
-// RegisterKind: GCC, DWARF, Generic, GDB, LLDB
+// RegisterKind: EH_Frame, DWARF, Generic, Procss Plugin, LLDB
 
 static RegisterInfo
 g_register_infos_mips[] =
 {
-    DEFINE_GPR (zero,     "zero", gcc_dwarf_zero_mips,  gcc_dwarf_zero_mips,  LLDB_INVALID_REGNUM,    gdb_zero_mips),
-    DEFINE_GPR (r1,       "at",   gcc_dwarf_r1_mips,    gcc_dwarf_r1_mips,    LLDB_INVALID_REGNUM,    gdb_r1_mips),
-    DEFINE_GPR (r2,       NULL,   gcc_dwarf_r2_mips,    gcc_dwarf_r2_mips,    LLDB_INVALID_REGNUM,    gdb_r2_mips),
-    DEFINE_GPR (r3,       NULL,   gcc_dwarf_r3_mips,    gcc_dwarf_r3_mips,    LLDB_INVALID_REGNUM,    gdb_r3_mips),
-    DEFINE_GPR (r4,       NULL,   gcc_dwarf_r4_mips,    gcc_dwarf_r4_mips,    LLDB_REGNUM_GENERIC_ARG1,    gdb_r4_mips),
-    DEFINE_GPR (r5,       NULL,   gcc_dwarf_r5_mips,    gcc_dwarf_r5_mips,    LLDB_REGNUM_GENERIC_ARG2,    gdb_r5_mips),
-    DEFINE_GPR (r6,       NULL,   gcc_dwarf_r6_mips,    gcc_dwarf_r6_mips,    LLDB_REGNUM_GENERIC_ARG3,    gdb_r6_mips),
-    DEFINE_GPR (r7,       NULL,   gcc_dwarf_r7_mips,    gcc_dwarf_r7_mips,    LLDB_REGNUM_GENERIC_ARG4,    gdb_r7_mips),
-    DEFINE_GPR (r8,       NULL,   gcc_dwarf_r8_mips,    gcc_dwarf_r8_mips,    LLDB_INVALID_REGNUM,    gdb_r8_mips),
-    DEFINE_GPR (r9,       NULL,   gcc_dwarf_r9_mips,    gcc_dwarf_r9_mips,    LLDB_INVALID_REGNUM,    gdb_r9_mips),
-    DEFINE_GPR (r10,      NULL,   gcc_dwarf_r10_mips,   gcc_dwarf_r10_mips,   LLDB_INVALID_REGNUM,    gdb_r10_mips),
-    DEFINE_GPR (r11,      NULL,   gcc_dwarf_r11_mips,   gcc_dwarf_r11_mips,   LLDB_INVALID_REGNUM,    gdb_r11_mips),
-    DEFINE_GPR (r12,      NULL,   gcc_dwarf_r12_mips,   gcc_dwarf_r12_mips,   LLDB_INVALID_REGNUM,    gdb_r12_mips),
-    DEFINE_GPR (r13,      NULL,   gcc_dwarf_r13_mips,   gcc_dwarf_r13_mips,   LLDB_INVALID_REGNUM,    gdb_r13_mips),
-    DEFINE_GPR (r14,      NULL,   gcc_dwarf_r14_mips,   gcc_dwarf_r14_mips,   LLDB_INVALID_REGNUM,    gdb_r14_mips),
-    DEFINE_GPR (r15,      NULL,   gcc_dwarf_r15_mips,   gcc_dwarf_r15_mips,   LLDB_INVALID_REGNUM,    gdb_r15_mips),
-    DEFINE_GPR (r16,      NULL,   gcc_dwarf_r16_mips,   gcc_dwarf_r16_mips,   LLDB_INVALID_REGNUM,    gdb_r16_mips),
-    DEFINE_GPR (r17,      NULL,   gcc_dwarf_r17_mips,   gcc_dwarf_r17_mips,   LLDB_INVALID_REGNUM,    gdb_r17_mips),
-    DEFINE_GPR (r18,      NULL,   gcc_dwarf_r18_mips,   gcc_dwarf_r18_mips,   LLDB_INVALID_REGNUM,    gdb_r18_mips),
-    DEFINE_GPR (r19,      NULL,   gcc_dwarf_r19_mips,   gcc_dwarf_r19_mips,   LLDB_INVALID_REGNUM,    gdb_r19_mips),
-    DEFINE_GPR (r20,      NULL,   gcc_dwarf_r20_mips,   gcc_dwarf_r20_mips,   LLDB_INVALID_REGNUM,    gdb_r20_mips),
-    DEFINE_GPR (r21,      NULL,   gcc_dwarf_r21_mips,   gcc_dwarf_r21_mips,   LLDB_INVALID_REGNUM,    gdb_r21_mips),
-    DEFINE_GPR (r22,      NULL,   gcc_dwarf_r22_mips,   gcc_dwarf_r22_mips,   LLDB_INVALID_REGNUM,    gdb_r22_mips),
-    DEFINE_GPR (r23,      NULL,   gcc_dwarf_r23_mips,   gcc_dwarf_r23_mips,   LLDB_INVALID_REGNUM,    gdb_r23_mips),
-    DEFINE_GPR (r24,      NULL,   gcc_dwarf_r24_mips,   gcc_dwarf_r24_mips,   LLDB_INVALID_REGNUM,    gdb_r24_mips),
-    DEFINE_GPR (r25,      NULL,   gcc_dwarf_r25_mips,   gcc_dwarf_r25_mips,   LLDB_INVALID_REGNUM,    gdb_r25_mips),
-    DEFINE_GPR (r26,      NULL,   gcc_dwarf_r26_mips,   gcc_dwarf_r26_mips,   LLDB_INVALID_REGNUM,    gdb_r26_mips),
-    DEFINE_GPR (r27,      NULL,   gcc_dwarf_r27_mips,   gcc_dwarf_r27_mips,   LLDB_INVALID_REGNUM,    gdb_r27_mips),
-    DEFINE_GPR (gp,       "gp",   gcc_dwarf_gp_mips,    gcc_dwarf_gp_mips,    LLDB_INVALID_REGNUM,    gdb_gp_mips),
-    DEFINE_GPR (sp,       "sp",   gcc_dwarf_sp_mips,    gcc_dwarf_sp_mips,    LLDB_REGNUM_GENERIC_SP, gdb_sp_mips),
-    DEFINE_GPR (r30,      "fp",   gcc_dwarf_r30_mips,   gcc_dwarf_r30_mips,   LLDB_REGNUM_GENERIC_FP, gdb_r30_mips),
-    DEFINE_GPR (ra,       "ra",   gcc_dwarf_ra_mips,    gcc_dwarf_ra_mips,    LLDB_REGNUM_GENERIC_RA, gdb_ra_mips),
-    DEFINE_GPR (sr,   "status",   gcc_dwarf_sr_mips,    gcc_dwarf_sr_mips,    LLDB_REGNUM_GENERIC_FLAGS,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR (mullo,    NULL,   gcc_dwarf_lo_mips,    gcc_dwarf_lo_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR (mulhi,    NULL,   gcc_dwarf_hi_mips,    gcc_dwarf_hi_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR (badvaddr, NULL,   gcc_dwarf_bad_mips,    gcc_dwarf_bad_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR (cause,    NULL,   gcc_dwarf_cause_mips,    gcc_dwarf_cause_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR (pc,       NULL,   gcc_dwarf_pc_mips,    gcc_dwarf_pc_mips,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
-    DEFINE_GPR (config5,    NULL,   gcc_dwarf_config5_mips,    gcc_dwarf_config5_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_FPR (f0,    NULL,   gcc_dwarf_f0_mips,   gcc_dwarf_f0_mips,   LLDB_INVALID_REGNUM,    gdb_f0_mips),
-    DEFINE_FPR (f1,    NULL,   gcc_dwarf_f1_mips,   gcc_dwarf_f1_mips,   LLDB_INVALID_REGNUM,    gdb_f1_mips),
-    DEFINE_FPR (f2,    NULL,   gcc_dwarf_f2_mips,   gcc_dwarf_f2_mips,   LLDB_INVALID_REGNUM,    gdb_f2_mips),
-    DEFINE_FPR (f3,    NULL,   gcc_dwarf_f3_mips,   gcc_dwarf_f3_mips,   LLDB_INVALID_REGNUM,    gdb_f3_mips),
-    DEFINE_FPR (f4,    NULL,   gcc_dwarf_f4_mips,   gcc_dwarf_f4_mips,   LLDB_INVALID_REGNUM,    gdb_f4_mips),
-    DEFINE_FPR (f5,    NULL,   gcc_dwarf_f5_mips,   gcc_dwarf_f5_mips,   LLDB_INVALID_REGNUM,    gdb_f5_mips),
-    DEFINE_FPR (f6,    NULL,   gcc_dwarf_f6_mips,   gcc_dwarf_f6_mips,   LLDB_INVALID_REGNUM,    gdb_f6_mips),
-    DEFINE_FPR (f7,    NULL,   gcc_dwarf_f7_mips,   gcc_dwarf_f7_mips,   LLDB_INVALID_REGNUM,    gdb_f7_mips),
-    DEFINE_FPR (f8,    NULL,   gcc_dwarf_f8_mips,   gcc_dwarf_f8_mips,   LLDB_INVALID_REGNUM,    gdb_f8_mips),
-    DEFINE_FPR (f9,    NULL,   gcc_dwarf_f9_mips,   gcc_dwarf_f9_mips,   LLDB_INVALID_REGNUM,    gdb_f9_mips),
-    DEFINE_FPR (f10,   NULL,   gcc_dwarf_f10_mips,  gcc_dwarf_f10_mips,  LLDB_INVALID_REGNUM,    gdb_f10_mips),
-    DEFINE_FPR (f11,   NULL,   gcc_dwarf_f11_mips,  gcc_dwarf_f11_mips,  LLDB_INVALID_REGNUM,    gdb_f11_mips),
-    DEFINE_FPR (f12,   NULL,   gcc_dwarf_f12_mips,  gcc_dwarf_f12_mips,  LLDB_INVALID_REGNUM,    gdb_f12_mips),
-    DEFINE_FPR (f13,   NULL,   gcc_dwarf_f13_mips,  gcc_dwarf_f13_mips,  LLDB_INVALID_REGNUM,    gdb_f13_mips),
-    DEFINE_FPR (f14,   NULL,   gcc_dwarf_f14_mips,  gcc_dwarf_f14_mips,  LLDB_INVALID_REGNUM,    gdb_f14_mips),
-    DEFINE_FPR (f15,   NULL,   gcc_dwarf_f15_mips,  gcc_dwarf_f15_mips,  LLDB_INVALID_REGNUM,    gdb_f15_mips),
-    DEFINE_FPR (f16,   NULL,   gcc_dwarf_f16_mips,  gcc_dwarf_f16_mips,  LLDB_INVALID_REGNUM,    gdb_f16_mips),
-    DEFINE_FPR (f17,   NULL,   gcc_dwarf_f17_mips,  gcc_dwarf_f17_mips,  LLDB_INVALID_REGNUM,    gdb_f17_mips),
-    DEFINE_FPR (f18,   NULL,   gcc_dwarf_f18_mips,  gcc_dwarf_f18_mips,  LLDB_INVALID_REGNUM,    gdb_f18_mips),
-    DEFINE_FPR (f19,   NULL,   gcc_dwarf_f19_mips,  gcc_dwarf_f19_mips,  LLDB_INVALID_REGNUM,    gdb_f19_mips),
-    DEFINE_FPR (f20,   NULL,   gcc_dwarf_f20_mips,  gcc_dwarf_f20_mips,  LLDB_INVALID_REGNUM,    gdb_f20_mips),
-    DEFINE_FPR (f21,   NULL,   gcc_dwarf_f21_mips,  gcc_dwarf_f21_mips,  LLDB_INVALID_REGNUM,    gdb_f21_mips),
-    DEFINE_FPR (f22,   NULL,   gcc_dwarf_f22_mips,  gcc_dwarf_f22_mips,  LLDB_INVALID_REGNUM,    gdb_f22_mips),
-    DEFINE_FPR (f23,   NULL,   gcc_dwarf_f23_mips,  gcc_dwarf_f23_mips,  LLDB_INVALID_REGNUM,    gdb_f23_mips),
-    DEFINE_FPR (f24,   NULL,   gcc_dwarf_f24_mips,  gcc_dwarf_f24_mips,  LLDB_INVALID_REGNUM,    gdb_f24_mips),
-    DEFINE_FPR (f25,   NULL,   gcc_dwarf_f25_mips,  gcc_dwarf_f25_mips,  LLDB_INVALID_REGNUM,    gdb_f25_mips),
-    DEFINE_FPR (f26,   NULL,   gcc_dwarf_f26_mips,  gcc_dwarf_f26_mips,  LLDB_INVALID_REGNUM,    gdb_f26_mips),
-    DEFINE_FPR (f27,   NULL,   gcc_dwarf_f27_mips,  gcc_dwarf_f27_mips,  LLDB_INVALID_REGNUM,    gdb_f27_mips),
-    DEFINE_FPR (f28,   NULL,   gcc_dwarf_f28_mips,  gcc_dwarf_f28_mips,  LLDB_INVALID_REGNUM,    gdb_f28_mips),
-    DEFINE_FPR (f29,   NULL,   gcc_dwarf_f29_mips,  gcc_dwarf_f29_mips,  LLDB_INVALID_REGNUM,    gdb_f29_mips),
-    DEFINE_FPR (f30,   NULL,   gcc_dwarf_f30_mips,  gcc_dwarf_f30_mips,  LLDB_INVALID_REGNUM,    gdb_f30_mips),
-    DEFINE_FPR (f31,   NULL,   gcc_dwarf_f31_mips,  gcc_dwarf_f31_mips,  LLDB_INVALID_REGNUM,    gdb_f31_mips),
-    DEFINE_FPR (fcsr,  NULL,   gcc_dwarf_fcsr_mips, gcc_dwarf_fcsr_mips, LLDB_INVALID_REGNUM,    gdb_fcsr_mips),
-    DEFINE_FPR (fir,   NULL,   gcc_dwarf_fir_mips,  gcc_dwarf_fir_mips,  LLDB_INVALID_REGNUM,    gdb_fir_mips),
-    DEFINE_FPR (config5,   NULL,   gcc_dwarf_config5_mips,  gcc_dwarf_config5_mips,  LLDB_INVALID_REGNUM,    gdb_config5_mips),
-    DEFINE_MSA (w0,    NULL,   gcc_dwarf_w0_mips,   gcc_dwarf_w0_mips,   LLDB_INVALID_REGNUM,    gdb_w0_mips),
-    DEFINE_MSA (w1,    NULL,   gcc_dwarf_w1_mips,   gcc_dwarf_w1_mips,   LLDB_INVALID_REGNUM,    gdb_w1_mips),
-    DEFINE_MSA (w2,    NULL,   gcc_dwarf_w2_mips,   gcc_dwarf_w2_mips,   LLDB_INVALID_REGNUM,    gdb_w2_mips),
-    DEFINE_MSA (w3,    NULL,   gcc_dwarf_w3_mips,   gcc_dwarf_w3_mips,   LLDB_INVALID_REGNUM,    gdb_w3_mips),
-    DEFINE_MSA (w4,    NULL,   gcc_dwarf_w4_mips,   gcc_dwarf_w4_mips,   LLDB_INVALID_REGNUM,    gdb_w4_mips),
-    DEFINE_MSA (w5,    NULL,   gcc_dwarf_w5_mips,   gcc_dwarf_w5_mips,   LLDB_INVALID_REGNUM,    gdb_w5_mips),
-    DEFINE_MSA (w6,    NULL,   gcc_dwarf_w6_mips,   gcc_dwarf_w6_mips,   LLDB_INVALID_REGNUM,    gdb_w6_mips),
-    DEFINE_MSA (w7,    NULL,   gcc_dwarf_w7_mips,   gcc_dwarf_w7_mips,   LLDB_INVALID_REGNUM,    gdb_w7_mips),
-    DEFINE_MSA (w8,    NULL,   gcc_dwarf_w8_mips,   gcc_dwarf_w8_mips,   LLDB_INVALID_REGNUM,    gdb_w8_mips),
-    DEFINE_MSA (w9,    NULL,   gcc_dwarf_w9_mips,   gcc_dwarf_w9_mips,   LLDB_INVALID_REGNUM,    gdb_w9_mips),
-    DEFINE_MSA (w10,   NULL,   gcc_dwarf_w10_mips,  gcc_dwarf_w10_mips,  LLDB_INVALID_REGNUM,    gdb_w10_mips),
-    DEFINE_MSA (w11,   NULL,   gcc_dwarf_w11_mips,  gcc_dwarf_w11_mips,  LLDB_INVALID_REGNUM,    gdb_w11_mips),
-    DEFINE_MSA (w12,   NULL,   gcc_dwarf_w12_mips,  gcc_dwarf_w12_mips,  LLDB_INVALID_REGNUM,    gdb_w12_mips),
-    DEFINE_MSA (w13,   NULL,   gcc_dwarf_w13_mips,  gcc_dwarf_w13_mips,  LLDB_INVALID_REGNUM,    gdb_w13_mips),
-    DEFINE_MSA (w14,   NULL,   gcc_dwarf_w14_mips,  gcc_dwarf_w14_mips,  LLDB_INVALID_REGNUM,    gdb_w14_mips),
-    DEFINE_MSA (w15,   NULL,   gcc_dwarf_w15_mips,  gcc_dwarf_w15_mips,  LLDB_INVALID_REGNUM,    gdb_w15_mips),
-    DEFINE_MSA (w16,   NULL,   gcc_dwarf_w16_mips,  gcc_dwarf_w16_mips,  LLDB_INVALID_REGNUM,    gdb_w16_mips),
-    DEFINE_MSA (w17,   NULL,   gcc_dwarf_w17_mips,  gcc_dwarf_w17_mips,  LLDB_INVALID_REGNUM,    gdb_w17_mips),
-    DEFINE_MSA (w18,   NULL,   gcc_dwarf_w18_mips,  gcc_dwarf_w18_mips,  LLDB_INVALID_REGNUM,    gdb_w18_mips),
-    DEFINE_MSA (w19,   NULL,   gcc_dwarf_w19_mips,  gcc_dwarf_w19_mips,  LLDB_INVALID_REGNUM,    gdb_w19_mips),
-    DEFINE_MSA (w20,   NULL,   gcc_dwarf_w10_mips,  gcc_dwarf_w20_mips,  LLDB_INVALID_REGNUM,    gdb_w20_mips),
-    DEFINE_MSA (w21,   NULL,   gcc_dwarf_w21_mips,  gcc_dwarf_w21_mips,  LLDB_INVALID_REGNUM,    gdb_w21_mips),
-    DEFINE_MSA (w22,   NULL,   gcc_dwarf_w22_mips,  gcc_dwarf_w22_mips,  LLDB_INVALID_REGNUM,    gdb_w22_mips),
-    DEFINE_MSA (w23,   NULL,   gcc_dwarf_w23_mips,  gcc_dwarf_w23_mips,  LLDB_INVALID_REGNUM,    gdb_w23_mips),
-    DEFINE_MSA (w24,   NULL,   gcc_dwarf_w24_mips,  gcc_dwarf_w24_mips,  LLDB_INVALID_REGNUM,    gdb_w24_mips),
-    DEFINE_MSA (w25,   NULL,   gcc_dwarf_w25_mips,  gcc_dwarf_w25_mips,  LLDB_INVALID_REGNUM,    gdb_w25_mips),
-    DEFINE_MSA (w26,   NULL,   gcc_dwarf_w26_mips,  gcc_dwarf_w26_mips,  LLDB_INVALID_REGNUM,    gdb_w26_mips),
-    DEFINE_MSA (w27,   NULL,   gcc_dwarf_w27_mips,  gcc_dwarf_w27_mips,  LLDB_INVALID_REGNUM,    gdb_w27_mips),
-    DEFINE_MSA (w28,   NULL,   gcc_dwarf_w28_mips,  gcc_dwarf_w28_mips,  LLDB_INVALID_REGNUM,    gdb_w28_mips),
-    DEFINE_MSA (w29,   NULL,   gcc_dwarf_w29_mips,  gcc_dwarf_w29_mips,  LLDB_INVALID_REGNUM,    gdb_w29_mips),
-    DEFINE_MSA (w30,   NULL,   gcc_dwarf_w30_mips,  gcc_dwarf_w30_mips,  LLDB_INVALID_REGNUM,    gdb_w30_mips),
-    DEFINE_MSA (w31,   NULL,   gcc_dwarf_w31_mips,  gcc_dwarf_w31_mips,  LLDB_INVALID_REGNUM,    gdb_w31_mips),
-    DEFINE_MSA_INFO (mcsr,  NULL,   gcc_dwarf_mcsr_mips, gcc_dwarf_mcsr_mips, LLDB_INVALID_REGNUM,    gdb_mcsr_mips),
-    DEFINE_MSA_INFO (mir,   NULL,   gcc_dwarf_mir_mips,  gcc_dwarf_mir_mips,  LLDB_INVALID_REGNUM,    gdb_mir_mips),
-    DEFINE_MSA_INFO (fcsr,  NULL,   gcc_dwarf_fcsr_mips, gcc_dwarf_fcsr_mips, LLDB_INVALID_REGNUM,    gdb_fcsr_mips),
-    DEFINE_MSA_INFO (fir,   NULL,   gcc_dwarf_fir_mips,  gcc_dwarf_fir_mips,  LLDB_INVALID_REGNUM,    gdb_fir_mips),
-    DEFINE_MSA_INFO (config5, NULL,   gcc_dwarf_config5_mips,  gcc_dwarf_config5_mips,  LLDB_INVALID_REGNUM,    gdb_config5_mips)
+    DEFINE_GPR (zero,     "zero",     dwarf_zero_mips,      dwarf_zero_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r1,       "at",       dwarf_r1_mips,        dwarf_r1_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r2,       nullptr,    dwarf_r2_mips,        dwarf_r2_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r3,       nullptr,    dwarf_r3_mips,        dwarf_r3_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r4,       nullptr,    dwarf_r4_mips,        dwarf_r4_mips,    LLDB_REGNUM_GENERIC_ARG1,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r5,       nullptr,    dwarf_r5_mips,        dwarf_r5_mips,    LLDB_REGNUM_GENERIC_ARG2,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r6,       nullptr,    dwarf_r6_mips,        dwarf_r6_mips,    LLDB_REGNUM_GENERIC_ARG3,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r7,       nullptr,    dwarf_r7_mips,        dwarf_r7_mips,    LLDB_REGNUM_GENERIC_ARG4,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r8,       nullptr,    dwarf_r8_mips,        dwarf_r8_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r9,       nullptr,    dwarf_r9_mips,        dwarf_r9_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r10,      nullptr,    dwarf_r10_mips,       dwarf_r10_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r11,      nullptr,    dwarf_r11_mips,       dwarf_r11_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r12,      nullptr,    dwarf_r12_mips,       dwarf_r12_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r13,      nullptr,    dwarf_r13_mips,       dwarf_r13_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r14,      nullptr,    dwarf_r14_mips,       dwarf_r14_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r15,      nullptr,    dwarf_r15_mips,       dwarf_r15_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r16,      nullptr,    dwarf_r16_mips,       dwarf_r16_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r17,      nullptr,    dwarf_r17_mips,       dwarf_r17_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r18,      nullptr,    dwarf_r18_mips,       dwarf_r18_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r19,      nullptr,    dwarf_r19_mips,       dwarf_r19_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r20,      nullptr,    dwarf_r20_mips,       dwarf_r20_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r21,      nullptr,    dwarf_r21_mips,       dwarf_r21_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r22,      nullptr,    dwarf_r22_mips,       dwarf_r22_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r23,      nullptr,    dwarf_r23_mips,       dwarf_r23_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r24,      nullptr,    dwarf_r24_mips,       dwarf_r24_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r25,      nullptr,    dwarf_r25_mips,       dwarf_r25_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r26,      nullptr,    dwarf_r26_mips,       dwarf_r26_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r27,      nullptr,    dwarf_r27_mips,       dwarf_r27_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (gp,       "gp",       dwarf_gp_mips,        dwarf_gp_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (sp,       "sp",       dwarf_sp_mips,        dwarf_sp_mips,    LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM),
+    DEFINE_GPR (r30,      "fp",       dwarf_r30_mips,       dwarf_r30_mips,   LLDB_REGNUM_GENERIC_FP, LLDB_INVALID_REGNUM),
+    DEFINE_GPR (ra,       "ra",       dwarf_ra_mips,        dwarf_ra_mips,    LLDB_REGNUM_GENERIC_RA, LLDB_INVALID_REGNUM),
+    DEFINE_GPR (sr,   "status",       dwarf_sr_mips,        dwarf_sr_mips,    LLDB_REGNUM_GENERIC_FLAGS,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (mullo,    nullptr,    dwarf_lo_mips,        dwarf_lo_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (mulhi,    nullptr,    dwarf_hi_mips,        dwarf_hi_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (badvaddr, nullptr,    dwarf_bad_mips,        dwarf_bad_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (cause,    nullptr,    dwarf_cause_mips,        dwarf_cause_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (pc,       nullptr,    dwarf_pc_mips,        dwarf_pc_mips,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
+    DEFINE_GPR (config5,    nullptr,    dwarf_config5_mips,        dwarf_config5_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f0,    nullptr,    dwarf_f0_mips,       dwarf_f0_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f1,    nullptr,    dwarf_f1_mips,       dwarf_f1_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f2,    nullptr,    dwarf_f2_mips,       dwarf_f2_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f3,    nullptr,    dwarf_f3_mips,       dwarf_f3_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f4,    nullptr,    dwarf_f4_mips,       dwarf_f4_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f5,    nullptr,    dwarf_f5_mips,       dwarf_f5_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f6,    nullptr,    dwarf_f6_mips,       dwarf_f6_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f7,    nullptr,    dwarf_f7_mips,       dwarf_f7_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f8,    nullptr,    dwarf_f8_mips,       dwarf_f8_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f9,    nullptr,    dwarf_f9_mips,       dwarf_f9_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f10,   nullptr,    dwarf_f10_mips,      dwarf_f10_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f11,   nullptr,    dwarf_f11_mips,      dwarf_f11_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f12,   nullptr,    dwarf_f12_mips,      dwarf_f12_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f13,   nullptr,    dwarf_f13_mips,      dwarf_f13_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f14,   nullptr,    dwarf_f14_mips,      dwarf_f14_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f15,   nullptr,    dwarf_f15_mips,      dwarf_f15_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f16,   nullptr,    dwarf_f16_mips,      dwarf_f16_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f17,   nullptr,    dwarf_f17_mips,      dwarf_f17_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f18,   nullptr,    dwarf_f18_mips,      dwarf_f18_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f19,   nullptr,    dwarf_f19_mips,      dwarf_f19_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f20,   nullptr,    dwarf_f20_mips,      dwarf_f20_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f21,   nullptr,    dwarf_f21_mips,      dwarf_f21_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f22,   nullptr,    dwarf_f22_mips,      dwarf_f22_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f23,   nullptr,    dwarf_f23_mips,      dwarf_f23_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f24,   nullptr,    dwarf_f24_mips,      dwarf_f24_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f25,   nullptr,    dwarf_f25_mips,      dwarf_f25_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f26,   nullptr,    dwarf_f26_mips,      dwarf_f26_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f27,   nullptr,    dwarf_f27_mips,      dwarf_f27_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f28,   nullptr,    dwarf_f28_mips,      dwarf_f28_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f29,   nullptr,    dwarf_f29_mips,      dwarf_f29_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f30,   nullptr,    dwarf_f30_mips,      dwarf_f30_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f31,   nullptr,    dwarf_f31_mips,      dwarf_f31_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (fcsr,  nullptr,    dwarf_fcsr_mips,     dwarf_fcsr_mips, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (fir,   nullptr,    dwarf_fir_mips,      dwarf_fir_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (config5,   nullptr,    dwarf_config5_mips,      dwarf_config5_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w0,    nullptr,    dwarf_w0_mips,       dwarf_w0_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w1,    nullptr,    dwarf_w1_mips,       dwarf_w1_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w2,    nullptr,    dwarf_w2_mips,       dwarf_w2_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w3,    nullptr,    dwarf_w3_mips,       dwarf_w3_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w4,    nullptr,    dwarf_w4_mips,       dwarf_w4_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w5,    nullptr,    dwarf_w5_mips,       dwarf_w5_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w6,    nullptr,    dwarf_w6_mips,       dwarf_w6_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w7,    nullptr,    dwarf_w7_mips,       dwarf_w7_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w8,    nullptr,    dwarf_w8_mips,       dwarf_w8_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w9,    nullptr,    dwarf_w9_mips,       dwarf_w9_mips,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w10,   nullptr,    dwarf_w10_mips,      dwarf_w10_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w11,   nullptr,    dwarf_w11_mips,      dwarf_w11_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w12,   nullptr,    dwarf_w12_mips,      dwarf_w12_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w13,   nullptr,    dwarf_w13_mips,      dwarf_w13_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w14,   nullptr,    dwarf_w14_mips,      dwarf_w14_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w15,   nullptr,    dwarf_w15_mips,      dwarf_w15_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w16,   nullptr,    dwarf_w16_mips,      dwarf_w16_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w17,   nullptr,    dwarf_w17_mips,      dwarf_w17_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w18,   nullptr,    dwarf_w18_mips,      dwarf_w18_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w19,   nullptr,    dwarf_w19_mips,      dwarf_w19_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w20,   nullptr,    dwarf_w10_mips,      dwarf_w20_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w21,   nullptr,    dwarf_w21_mips,      dwarf_w21_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w22,   nullptr,    dwarf_w22_mips,      dwarf_w22_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w23,   nullptr,    dwarf_w23_mips,      dwarf_w23_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w24,   nullptr,    dwarf_w24_mips,      dwarf_w24_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w25,   nullptr,    dwarf_w25_mips,      dwarf_w25_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w26,   nullptr,    dwarf_w26_mips,      dwarf_w26_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w27,   nullptr,    dwarf_w27_mips,      dwarf_w27_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w28,   nullptr,    dwarf_w28_mips,      dwarf_w28_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w29,   nullptr,    dwarf_w29_mips,      dwarf_w29_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w30,   nullptr,    dwarf_w30_mips,      dwarf_w30_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w31,   nullptr,    dwarf_w31_mips,      dwarf_w31_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA_INFO (mcsr,  nullptr,    dwarf_mcsr_mips,     dwarf_mcsr_mips, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA_INFO (mir,   nullptr,    dwarf_mir_mips,      dwarf_mir_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA_INFO (fcsr,  nullptr,    dwarf_fcsr_mips,     dwarf_fcsr_mips, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA_INFO (fir,   nullptr,    dwarf_fir_mips,      dwarf_fir_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA_INFO (config5, nullptr,    dwarf_config5_mips,      dwarf_config5_mips,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM)
 };
+
 static_assert((sizeof(g_register_infos_mips) / sizeof(g_register_infos_mips[0])) == k_num_registers_mips,
     "g_register_infos_mips has wrong number of register infos");
 
diff --git a/source/Plugins/Process/Utility/RegisterInfos_mips64.h b/source/Plugins/Process/Utility/RegisterInfos_mips64.h
index 101842e66d498..45853d7931ddb 100644
--- a/source/Plugins/Process/Utility/RegisterInfos_mips64.h
+++ b/source/Plugins/Process/Utility/RegisterInfos_mips64.h
@@ -1,15 +1,21 @@
-//===-- RegisterInfos_mips64.h ---------------------------------*- C++ -*-===//
+//===-- RegisterInfos_mips64.h ----------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
-//===---------------------------------------------------------------------===//
-#include "llvm/Support/Compiler.h"
+//===----------------------------------------------------------------------===//
 
+// C Includes
 #include <stddef.h>
 
+// C++ Includes
+// Other libraries and framework includes
+#include "llvm/Support/Compiler.h"
+
+// Project includes
+
 #ifdef DECLARE_REGISTER_INFOS_MIPS64_STRUCT
 
 // Computes the offset of the given GPR in the user data area.
@@ -32,7 +38,7 @@
      (LLVM_EXTENSION offsetof(UserArea, msa) + \
       LLVM_EXTENSION offsetof(MSA_linux_mips, regname))
 
-// RegisterKind: GCC, DWARF, Generic, GDB, LLDB
+// RegisterKind: EHFrame, DWARF, Generic, Process Plugin, LLDB
 
 // Note that the size and offset will be updated by platform-specific classes.
 #ifdef LINUX_MIPS64
@@ -64,161 +70,160 @@
 static RegisterInfo
 g_register_infos_mips64[] =
 {
-    // General purpose registers.                 GCC,                  DWARF,              Generic,                GDB
+    // General purpose registers.            EH_Frame,                  DWARF,              Generic,    Process Plugin
 #ifndef LINUX_MIPS64
-    DEFINE_GPR(zero,     "r0",  gcc_dwarf_zero_mips64,  gcc_dwarf_zero_mips64,  LLDB_INVALID_REGNUM,    gdb_zero_mips64),
-    DEFINE_GPR(r1,       NULL,  gcc_dwarf_r1_mips64,    gcc_dwarf_r1_mips64,    LLDB_INVALID_REGNUM,    gdb_r1_mips64),
-    DEFINE_GPR(r2,       NULL,  gcc_dwarf_r2_mips64,    gcc_dwarf_r2_mips64,    LLDB_INVALID_REGNUM,    gdb_r2_mips64),
-    DEFINE_GPR(r3,       NULL,  gcc_dwarf_r3_mips64,    gcc_dwarf_r3_mips64,    LLDB_INVALID_REGNUM,    gdb_r3_mips64),
-    DEFINE_GPR(r4,       NULL,  gcc_dwarf_r4_mips64,    gcc_dwarf_r4_mips64,    LLDB_REGNUM_GENERIC_ARG1,    gdb_r4_mips64),
-    DEFINE_GPR(r5,       NULL,  gcc_dwarf_r5_mips64,    gcc_dwarf_r5_mips64,    LLDB_REGNUM_GENERIC_ARG2,    gdb_r5_mips64),
-    DEFINE_GPR(r6,       NULL,  gcc_dwarf_r6_mips64,    gcc_dwarf_r6_mips64,    LLDB_REGNUM_GENERIC_ARG3,    gdb_r6_mips64),
-    DEFINE_GPR(r7,       NULL,  gcc_dwarf_r7_mips64,    gcc_dwarf_r7_mips64,    LLDB_REGNUM_GENERIC_ARG4,    gdb_r7_mips64),
-    DEFINE_GPR(r8,       NULL,  gcc_dwarf_r8_mips64,    gcc_dwarf_r8_mips64,    LLDB_REGNUM_GENERIC_ARG5,    gdb_r8_mips64),
-    DEFINE_GPR(r9,       NULL,  gcc_dwarf_r9_mips64,    gcc_dwarf_r9_mips64,    LLDB_REGNUM_GENERIC_ARG6,    gdb_r9_mips64),
-    DEFINE_GPR(r10,      NULL,  gcc_dwarf_r10_mips64,   gcc_dwarf_r10_mips64,   LLDB_REGNUM_GENERIC_ARG7,    gdb_r10_mips64),
-    DEFINE_GPR(r11,      NULL,  gcc_dwarf_r11_mips64,   gcc_dwarf_r11_mips64,   LLDB_REGNUM_GENERIC_ARG8,    gdb_r11_mips64),
-    DEFINE_GPR(r12,      NULL,  gcc_dwarf_r12_mips64,   gcc_dwarf_r12_mips64,   LLDB_INVALID_REGNUM,    gdb_r12_mips64),
-    DEFINE_GPR(r13,      NULL,  gcc_dwarf_r13_mips64,   gcc_dwarf_r13_mips64,   LLDB_INVALID_REGNUM,    gdb_r13_mips64),
-    DEFINE_GPR(r14,      NULL,  gcc_dwarf_r14_mips64,   gcc_dwarf_r14_mips64,   LLDB_INVALID_REGNUM,    gdb_r14_mips64),
-    DEFINE_GPR(r15,      NULL,  gcc_dwarf_r15_mips64,   gcc_dwarf_r15_mips64,   LLDB_INVALID_REGNUM,    gdb_r15_mips64),
-    DEFINE_GPR(r16,      NULL,  gcc_dwarf_r16_mips64,   gcc_dwarf_r16_mips64,   LLDB_INVALID_REGNUM,    gdb_r16_mips64),
-    DEFINE_GPR(r17,      NULL,  gcc_dwarf_r17_mips64,   gcc_dwarf_r17_mips64,   LLDB_INVALID_REGNUM,    gdb_r17_mips64),
-    DEFINE_GPR(r18,      NULL,  gcc_dwarf_r18_mips64,   gcc_dwarf_r18_mips64,   LLDB_INVALID_REGNUM,    gdb_r18_mips64),
-    DEFINE_GPR(r19,      NULL,  gcc_dwarf_r19_mips64,   gcc_dwarf_r19_mips64,   LLDB_INVALID_REGNUM,    gdb_r19_mips64),
-    DEFINE_GPR(r20,      NULL,  gcc_dwarf_r20_mips64,   gcc_dwarf_r20_mips64,   LLDB_INVALID_REGNUM,    gdb_r20_mips64),
-    DEFINE_GPR(r21,      NULL,  gcc_dwarf_r21_mips64,   gcc_dwarf_r21_mips64,   LLDB_INVALID_REGNUM,    gdb_r21_mips64),
-    DEFINE_GPR(r22,      NULL,  gcc_dwarf_r22_mips64,   gcc_dwarf_r22_mips64,   LLDB_INVALID_REGNUM,    gdb_r22_mips64),
-    DEFINE_GPR(r23,      NULL,  gcc_dwarf_r23_mips64,   gcc_dwarf_r23_mips64,   LLDB_INVALID_REGNUM,    gdb_r23_mips64),
-    DEFINE_GPR(r24,      NULL,  gcc_dwarf_r24_mips64,   gcc_dwarf_r24_mips64,   LLDB_INVALID_REGNUM,    gdb_r24_mips64),
-    DEFINE_GPR(r25,      NULL,  gcc_dwarf_r25_mips64,   gcc_dwarf_r25_mips64,   LLDB_INVALID_REGNUM,    gdb_r25_mips64),
-    DEFINE_GPR(r26,      NULL,  gcc_dwarf_r26_mips64,   gcc_dwarf_r26_mips64,   LLDB_INVALID_REGNUM,    gdb_r26_mips64),
-    DEFINE_GPR(r27,      NULL,  gcc_dwarf_r27_mips64,   gcc_dwarf_r27_mips64,   LLDB_INVALID_REGNUM,    gdb_r27_mips64),
-    DEFINE_GPR(gp,       "r28", gcc_dwarf_gp_mips64,    gcc_dwarf_gp_mips64,    LLDB_INVALID_REGNUM,    gdb_gp_mips64),
-    DEFINE_GPR(sp,       "r29", gcc_dwarf_sp_mips64,    gcc_dwarf_sp_mips64,    LLDB_REGNUM_GENERIC_SP, gdb_sp_mips64),
-    DEFINE_GPR(r30,      NULL,  gcc_dwarf_r30_mips64,   gcc_dwarf_r30_mips64,   LLDB_REGNUM_GENERIC_FP,    gdb_r30_mips64),
-    DEFINE_GPR(ra,       "r31", gcc_dwarf_ra_mips64,    gcc_dwarf_ra_mips64,    LLDB_REGNUM_GENERIC_RA,    gdb_ra_mips64),
-    DEFINE_GPR(sr,       NULL,  gcc_dwarf_sr_mips64,    gcc_dwarf_sr_mips64,    LLDB_REGNUM_GENERIC_FLAGS,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(mullo,    NULL,  gcc_dwarf_lo_mips64,    gcc_dwarf_lo_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(mulhi,    NULL,  gcc_dwarf_hi_mips64,    gcc_dwarf_hi_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(badvaddr, NULL,  gcc_dwarf_bad_mips64,   gcc_dwarf_bad_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(cause,    NULL,  gcc_dwarf_cause_mips64, gcc_dwarf_cause_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(pc,       "pc",  gcc_dwarf_pc_mips64,    gcc_dwarf_pc_mips64,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
-    DEFINE_GPR(ic,       NULL,  gcc_dwarf_ic_mips64,    gcc_dwarf_ic_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(dummy,    NULL,  gcc_dwarf_dummy_mips64, gcc_dwarf_dummy_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(zero,     "r0",      dwarf_zero_mips64,      dwarf_zero_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r1,       nullptr,   dwarf_r1_mips64,        dwarf_r1_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r2,       nullptr,   dwarf_r2_mips64,        dwarf_r2_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r3,       nullptr,   dwarf_r3_mips64,        dwarf_r3_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r4,       nullptr,   dwarf_r4_mips64,        dwarf_r4_mips64,    LLDB_REGNUM_GENERIC_ARG1,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r5,       nullptr,   dwarf_r5_mips64,        dwarf_r5_mips64,    LLDB_REGNUM_GENERIC_ARG2,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r6,       nullptr,   dwarf_r6_mips64,        dwarf_r6_mips64,    LLDB_REGNUM_GENERIC_ARG3,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r7,       nullptr,   dwarf_r7_mips64,        dwarf_r7_mips64,    LLDB_REGNUM_GENERIC_ARG4,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r8,       nullptr,   dwarf_r8_mips64,        dwarf_r8_mips64,    LLDB_REGNUM_GENERIC_ARG5,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r9,       nullptr,   dwarf_r9_mips64,        dwarf_r9_mips64,    LLDB_REGNUM_GENERIC_ARG6,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r10,      nullptr,   dwarf_r10_mips64,       dwarf_r10_mips64,   LLDB_REGNUM_GENERIC_ARG7,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r11,      nullptr,   dwarf_r11_mips64,       dwarf_r11_mips64,   LLDB_REGNUM_GENERIC_ARG8,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r12,      nullptr,   dwarf_r12_mips64,       dwarf_r12_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r13,      nullptr,   dwarf_r13_mips64,       dwarf_r13_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r14,      nullptr,   dwarf_r14_mips64,       dwarf_r14_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r15,      nullptr,   dwarf_r15_mips64,       dwarf_r15_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r16,      nullptr,   dwarf_r16_mips64,       dwarf_r16_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r17,      nullptr,   dwarf_r17_mips64,       dwarf_r17_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r18,      nullptr,   dwarf_r18_mips64,       dwarf_r18_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r19,      nullptr,   dwarf_r19_mips64,       dwarf_r19_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r20,      nullptr,   dwarf_r20_mips64,       dwarf_r20_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r21,      nullptr,   dwarf_r21_mips64,       dwarf_r21_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r22,      nullptr,   dwarf_r22_mips64,       dwarf_r22_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r23,      nullptr,   dwarf_r23_mips64,       dwarf_r23_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r24,      nullptr,   dwarf_r24_mips64,       dwarf_r24_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r25,      nullptr,   dwarf_r25_mips64,       dwarf_r25_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r26,      nullptr,   dwarf_r26_mips64,       dwarf_r26_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r27,      nullptr,   dwarf_r27_mips64,       dwarf_r27_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(gp,       "r28",     dwarf_gp_mips64,        dwarf_gp_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(sp,       "r29",     dwarf_sp_mips64,        dwarf_sp_mips64,    LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r30,      nullptr,   dwarf_r30_mips64,       dwarf_r30_mips64,   LLDB_REGNUM_GENERIC_FP,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(ra,       "r31",     dwarf_ra_mips64,        dwarf_ra_mips64,    LLDB_REGNUM_GENERIC_RA,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(sr,       nullptr,   dwarf_sr_mips64,        dwarf_sr_mips64,    LLDB_REGNUM_GENERIC_FLAGS,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(mullo,    nullptr,   dwarf_lo_mips64,        dwarf_lo_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(mulhi,    nullptr,   dwarf_hi_mips64,        dwarf_hi_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(badvaddr, nullptr,   dwarf_bad_mips64,       dwarf_bad_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(cause,    nullptr,   dwarf_cause_mips64,     dwarf_cause_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(pc,       "pc",      dwarf_pc_mips64,        dwarf_pc_mips64,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(ic,       nullptr,   dwarf_ic_mips64,        dwarf_ic_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(dummy,    nullptr,   dwarf_dummy_mips64,     dwarf_dummy_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
 #else
-
-    DEFINE_GPR(zero,     "r0",  gcc_dwarf_zero_mips64,  gcc_dwarf_zero_mips64,  LLDB_INVALID_REGNUM,    gdb_zero_mips64),
-    DEFINE_GPR(r1,       NULL,  gcc_dwarf_r1_mips64,    gcc_dwarf_r1_mips64,    LLDB_INVALID_REGNUM,    gdb_r1_mips64),
-    DEFINE_GPR(r2,       NULL,  gcc_dwarf_r2_mips64,    gcc_dwarf_r2_mips64,    LLDB_INVALID_REGNUM,    gdb_r2_mips64),
-    DEFINE_GPR(r3,       NULL,  gcc_dwarf_r3_mips64,    gcc_dwarf_r3_mips64,    LLDB_INVALID_REGNUM,    gdb_r3_mips64),
-    DEFINE_GPR(r4,       NULL,  gcc_dwarf_r4_mips64,    gcc_dwarf_r4_mips64,    LLDB_REGNUM_GENERIC_ARG1,    gdb_r4_mips64),
-    DEFINE_GPR(r5,       NULL,  gcc_dwarf_r5_mips64,    gcc_dwarf_r5_mips64,    LLDB_REGNUM_GENERIC_ARG2,    gdb_r5_mips64),
-    DEFINE_GPR(r6,       NULL,  gcc_dwarf_r6_mips64,    gcc_dwarf_r6_mips64,    LLDB_REGNUM_GENERIC_ARG3,    gdb_r6_mips64),
-    DEFINE_GPR(r7,       NULL,  gcc_dwarf_r7_mips64,    gcc_dwarf_r7_mips64,    LLDB_REGNUM_GENERIC_ARG4,    gdb_r7_mips64),
-    DEFINE_GPR(r8,       NULL,  gcc_dwarf_r8_mips64,    gcc_dwarf_r8_mips64,    LLDB_REGNUM_GENERIC_ARG5,    gdb_r8_mips64),
-    DEFINE_GPR(r9,       NULL,  gcc_dwarf_r9_mips64,    gcc_dwarf_r9_mips64,    LLDB_REGNUM_GENERIC_ARG6,    gdb_r9_mips64),
-    DEFINE_GPR(r10,      NULL,  gcc_dwarf_r10_mips64,   gcc_dwarf_r10_mips64,   LLDB_REGNUM_GENERIC_ARG7,    gdb_r10_mips64),
-    DEFINE_GPR(r11,      NULL,  gcc_dwarf_r11_mips64,   gcc_dwarf_r11_mips64,   LLDB_REGNUM_GENERIC_ARG8,    gdb_r11_mips64),
-    DEFINE_GPR(r12,      NULL,  gcc_dwarf_r12_mips64,   gcc_dwarf_r12_mips64,   LLDB_INVALID_REGNUM,    gdb_r12_mips64),
-    DEFINE_GPR(r13,      NULL,  gcc_dwarf_r13_mips64,   gcc_dwarf_r13_mips64,   LLDB_INVALID_REGNUM,    gdb_r13_mips64),
-    DEFINE_GPR(r14,      NULL,  gcc_dwarf_r14_mips64,   gcc_dwarf_r14_mips64,   LLDB_INVALID_REGNUM,    gdb_r14_mips64),
-    DEFINE_GPR(r15,      NULL,  gcc_dwarf_r15_mips64,   gcc_dwarf_r15_mips64,   LLDB_INVALID_REGNUM,    gdb_r15_mips64),
-    DEFINE_GPR(r16,      NULL,  gcc_dwarf_r16_mips64,   gcc_dwarf_r16_mips64,   LLDB_INVALID_REGNUM,    gdb_r16_mips64),
-    DEFINE_GPR(r17,      NULL,  gcc_dwarf_r17_mips64,   gcc_dwarf_r17_mips64,   LLDB_INVALID_REGNUM,    gdb_r17_mips64),
-    DEFINE_GPR(r18,      NULL,  gcc_dwarf_r18_mips64,   gcc_dwarf_r18_mips64,   LLDB_INVALID_REGNUM,    gdb_r18_mips64),
-    DEFINE_GPR(r19,      NULL,  gcc_dwarf_r19_mips64,   gcc_dwarf_r19_mips64,   LLDB_INVALID_REGNUM,    gdb_r19_mips64),
-    DEFINE_GPR(r20,      NULL,  gcc_dwarf_r20_mips64,   gcc_dwarf_r20_mips64,   LLDB_INVALID_REGNUM,    gdb_r20_mips64),
-    DEFINE_GPR(r21,      NULL,  gcc_dwarf_r21_mips64,   gcc_dwarf_r21_mips64,   LLDB_INVALID_REGNUM,    gdb_r21_mips64),
-    DEFINE_GPR(r22,      NULL,  gcc_dwarf_r22_mips64,   gcc_dwarf_r22_mips64,   LLDB_INVALID_REGNUM,    gdb_r22_mips64),
-    DEFINE_GPR(r23,      NULL,  gcc_dwarf_r23_mips64,   gcc_dwarf_r23_mips64,   LLDB_INVALID_REGNUM,    gdb_r23_mips64),
-    DEFINE_GPR(r24,      NULL,  gcc_dwarf_r24_mips64,   gcc_dwarf_r24_mips64,   LLDB_INVALID_REGNUM,    gdb_r24_mips64),
-    DEFINE_GPR(r25,      NULL,  gcc_dwarf_r25_mips64,   gcc_dwarf_r25_mips64,   LLDB_INVALID_REGNUM,    gdb_r25_mips64),
-    DEFINE_GPR(r26,      NULL,  gcc_dwarf_r26_mips64,   gcc_dwarf_r26_mips64,   LLDB_INVALID_REGNUM,    gdb_r26_mips64),
-    DEFINE_GPR(r27,      NULL,  gcc_dwarf_r27_mips64,   gcc_dwarf_r27_mips64,   LLDB_INVALID_REGNUM,    gdb_r27_mips64),
-    DEFINE_GPR(gp,       "r28", gcc_dwarf_gp_mips64,    gcc_dwarf_gp_mips64,    LLDB_INVALID_REGNUM,    gdb_gp_mips64),
-    DEFINE_GPR(sp,       "r29", gcc_dwarf_sp_mips64,    gcc_dwarf_sp_mips64,    LLDB_REGNUM_GENERIC_SP, gdb_sp_mips64),
-    DEFINE_GPR(r30,      NULL,  gcc_dwarf_r30_mips64,   gcc_dwarf_r30_mips64,   LLDB_REGNUM_GENERIC_FP,    gdb_r30_mips64),
-    DEFINE_GPR(ra,       "r31", gcc_dwarf_ra_mips64,    gcc_dwarf_ra_mips64,    LLDB_REGNUM_GENERIC_RA,    gdb_ra_mips64),
-    DEFINE_GPR_INFO(sr,       NULL,  gcc_dwarf_sr_mips64,    gcc_dwarf_sr_mips64,    LLDB_REGNUM_GENERIC_FLAGS,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(mullo,    NULL,  gcc_dwarf_lo_mips64,    gcc_dwarf_lo_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(mulhi,    NULL,  gcc_dwarf_hi_mips64,    gcc_dwarf_hi_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(badvaddr, NULL,  gcc_dwarf_bad_mips64,   gcc_dwarf_bad_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR_INFO(cause,    NULL,  gcc_dwarf_cause_mips64, gcc_dwarf_cause_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(pc,       "pc",  gcc_dwarf_pc_mips64,    gcc_dwarf_pc_mips64,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
-    DEFINE_GPR_INFO(config5,    NULL,  gcc_dwarf_config5_mips64, gcc_dwarf_config5_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_FPR (f0,    NULL,   gcc_dwarf_f0_mips64,   gcc_dwarf_f0_mips64,   LLDB_INVALID_REGNUM,    gdb_f0_mips64),
-    DEFINE_FPR (f1,    NULL,   gcc_dwarf_f1_mips64,   gcc_dwarf_f1_mips64,   LLDB_INVALID_REGNUM,    gdb_f1_mips64),
-    DEFINE_FPR (f2,    NULL,   gcc_dwarf_f2_mips64,   gcc_dwarf_f2_mips64,   LLDB_INVALID_REGNUM,    gdb_f2_mips64),
-    DEFINE_FPR (f3,    NULL,   gcc_dwarf_f3_mips64,   gcc_dwarf_f3_mips64,   LLDB_INVALID_REGNUM,    gdb_f3_mips64),
-    DEFINE_FPR (f4,    NULL,   gcc_dwarf_f4_mips64,   gcc_dwarf_f4_mips64,   LLDB_INVALID_REGNUM,    gdb_f4_mips64),
-    DEFINE_FPR (f5,    NULL,   gcc_dwarf_f5_mips64,   gcc_dwarf_f5_mips64,   LLDB_INVALID_REGNUM,    gdb_f5_mips64),
-    DEFINE_FPR (f6,    NULL,   gcc_dwarf_f6_mips64,   gcc_dwarf_f6_mips64,   LLDB_INVALID_REGNUM,    gdb_f6_mips64),
-    DEFINE_FPR (f7,    NULL,   gcc_dwarf_f7_mips64,   gcc_dwarf_f7_mips64,   LLDB_INVALID_REGNUM,    gdb_f7_mips64),
-    DEFINE_FPR (f8,    NULL,   gcc_dwarf_f8_mips64,   gcc_dwarf_f8_mips64,   LLDB_INVALID_REGNUM,    gdb_f8_mips64),
-    DEFINE_FPR (f9,    NULL,   gcc_dwarf_f9_mips64,   gcc_dwarf_f9_mips64,   LLDB_INVALID_REGNUM,    gdb_f9_mips64),
-    DEFINE_FPR (f10,   NULL,   gcc_dwarf_f10_mips64,  gcc_dwarf_f10_mips64,  LLDB_INVALID_REGNUM,    gdb_f10_mips64),
-    DEFINE_FPR (f11,   NULL,   gcc_dwarf_f11_mips64,  gcc_dwarf_f11_mips64,  LLDB_INVALID_REGNUM,    gdb_f11_mips64),
-    DEFINE_FPR (f12,   NULL,   gcc_dwarf_f12_mips64,  gcc_dwarf_f12_mips64,  LLDB_INVALID_REGNUM,    gdb_f12_mips64),
-    DEFINE_FPR (f13,   NULL,   gcc_dwarf_f13_mips64,  gcc_dwarf_f13_mips64,  LLDB_INVALID_REGNUM,    gdb_f13_mips64),
-    DEFINE_FPR (f14,   NULL,   gcc_dwarf_f14_mips64,  gcc_dwarf_f14_mips64,  LLDB_INVALID_REGNUM,    gdb_f14_mips64),
-    DEFINE_FPR (f15,   NULL,   gcc_dwarf_f15_mips64,  gcc_dwarf_f15_mips64,  LLDB_INVALID_REGNUM,    gdb_f15_mips64),
-    DEFINE_FPR (f16,   NULL,   gcc_dwarf_f16_mips64,  gcc_dwarf_f16_mips64,  LLDB_INVALID_REGNUM,    gdb_f16_mips64),
-    DEFINE_FPR (f17,   NULL,   gcc_dwarf_f17_mips64,  gcc_dwarf_f17_mips64,  LLDB_INVALID_REGNUM,    gdb_f17_mips64),
-    DEFINE_FPR (f18,   NULL,   gcc_dwarf_f18_mips64,  gcc_dwarf_f18_mips64,  LLDB_INVALID_REGNUM,    gdb_f18_mips64),
-    DEFINE_FPR (f19,   NULL,   gcc_dwarf_f19_mips64,  gcc_dwarf_f19_mips64,  LLDB_INVALID_REGNUM,    gdb_f19_mips64),
-    DEFINE_FPR (f20,   NULL,   gcc_dwarf_f20_mips64,  gcc_dwarf_f20_mips64,  LLDB_INVALID_REGNUM,    gdb_f20_mips64),
-    DEFINE_FPR (f21,   NULL,   gcc_dwarf_f21_mips64,  gcc_dwarf_f21_mips64,  LLDB_INVALID_REGNUM,    gdb_f21_mips64),
-    DEFINE_FPR (f22,   NULL,   gcc_dwarf_f22_mips64,  gcc_dwarf_f22_mips64,  LLDB_INVALID_REGNUM,    gdb_f22_mips64),
-    DEFINE_FPR (f23,   NULL,   gcc_dwarf_f23_mips64,  gcc_dwarf_f23_mips64,  LLDB_INVALID_REGNUM,    gdb_f23_mips64),
-    DEFINE_FPR (f24,   NULL,   gcc_dwarf_f24_mips64,  gcc_dwarf_f24_mips64,  LLDB_INVALID_REGNUM,    gdb_f24_mips64),
-    DEFINE_FPR (f25,   NULL,   gcc_dwarf_f25_mips64,  gcc_dwarf_f25_mips64,  LLDB_INVALID_REGNUM,    gdb_f25_mips64),
-    DEFINE_FPR (f26,   NULL,   gcc_dwarf_f26_mips64,  gcc_dwarf_f26_mips64,  LLDB_INVALID_REGNUM,    gdb_f26_mips64),
-    DEFINE_FPR (f27,   NULL,   gcc_dwarf_f27_mips64,  gcc_dwarf_f27_mips64,  LLDB_INVALID_REGNUM,    gdb_f27_mips64),
-    DEFINE_FPR (f28,   NULL,   gcc_dwarf_f28_mips64,  gcc_dwarf_f28_mips64,  LLDB_INVALID_REGNUM,    gdb_f28_mips64),
-    DEFINE_FPR (f29,   NULL,   gcc_dwarf_f29_mips64,  gcc_dwarf_f29_mips64,  LLDB_INVALID_REGNUM,    gdb_f29_mips64),
-    DEFINE_FPR (f30,   NULL,   gcc_dwarf_f30_mips64,  gcc_dwarf_f30_mips64,  LLDB_INVALID_REGNUM,    gdb_f30_mips64),
-    DEFINE_FPR (f31,   NULL,   gcc_dwarf_f31_mips64,  gcc_dwarf_f31_mips64,  LLDB_INVALID_REGNUM,    gdb_f31_mips64),
-    DEFINE_FPR (fcsr,  NULL,   gcc_dwarf_fcsr_mips64, gcc_dwarf_fcsr_mips64, LLDB_INVALID_REGNUM,    gdb_fcsr_mips64),
-    DEFINE_FPR (fir,   NULL,   gcc_dwarf_fir_mips64,  gcc_dwarf_fir_mips64,  LLDB_INVALID_REGNUM,    gdb_fir_mips64),
-    DEFINE_FPR (config5,   NULL,   gcc_dwarf_config5_mips64,  gcc_dwarf_config5_mips64,  LLDB_INVALID_REGNUM,    gdb_config5_mips64),
-    DEFINE_MSA (w0,    NULL,   gcc_dwarf_w0_mips64,   gcc_dwarf_w0_mips64,   LLDB_INVALID_REGNUM,    gdb_w0_mips64),
-    DEFINE_MSA (w1,    NULL,   gcc_dwarf_w1_mips64,   gcc_dwarf_w1_mips64,   LLDB_INVALID_REGNUM,    gdb_w1_mips64),
-    DEFINE_MSA (w2,    NULL,   gcc_dwarf_w2_mips64,   gcc_dwarf_w2_mips64,   LLDB_INVALID_REGNUM,    gdb_w2_mips64),
-    DEFINE_MSA (w3,    NULL,   gcc_dwarf_w3_mips64,   gcc_dwarf_w3_mips64,   LLDB_INVALID_REGNUM,    gdb_w3_mips64),
-    DEFINE_MSA (w4,    NULL,   gcc_dwarf_w4_mips64,   gcc_dwarf_w4_mips64,   LLDB_INVALID_REGNUM,    gdb_w4_mips64),
-    DEFINE_MSA (w5,    NULL,   gcc_dwarf_w5_mips64,   gcc_dwarf_w5_mips64,   LLDB_INVALID_REGNUM,    gdb_w5_mips64),
-    DEFINE_MSA (w6,    NULL,   gcc_dwarf_w6_mips64,   gcc_dwarf_w6_mips64,   LLDB_INVALID_REGNUM,    gdb_w6_mips64),
-    DEFINE_MSA (w7,    NULL,   gcc_dwarf_w7_mips64,   gcc_dwarf_w7_mips64,   LLDB_INVALID_REGNUM,    gdb_w7_mips64),
-    DEFINE_MSA (w8,    NULL,   gcc_dwarf_w8_mips64,   gcc_dwarf_w8_mips64,   LLDB_INVALID_REGNUM,    gdb_w8_mips64),
-    DEFINE_MSA (w9,    NULL,   gcc_dwarf_w9_mips64,   gcc_dwarf_w9_mips64,   LLDB_INVALID_REGNUM,    gdb_w9_mips64),
-    DEFINE_MSA (w10,   NULL,   gcc_dwarf_w10_mips64,  gcc_dwarf_w10_mips64,  LLDB_INVALID_REGNUM,    gdb_w10_mips64),
-    DEFINE_MSA (w11,   NULL,   gcc_dwarf_w11_mips64,  gcc_dwarf_w11_mips64,  LLDB_INVALID_REGNUM,    gdb_w11_mips64),
-    DEFINE_MSA (w12,   NULL,   gcc_dwarf_w12_mips64,  gcc_dwarf_w12_mips64,  LLDB_INVALID_REGNUM,    gdb_w12_mips64),
-    DEFINE_MSA (w13,   NULL,   gcc_dwarf_w13_mips64,  gcc_dwarf_w13_mips64,  LLDB_INVALID_REGNUM,    gdb_w13_mips64),
-    DEFINE_MSA (w14,   NULL,   gcc_dwarf_w14_mips64,  gcc_dwarf_w14_mips64,  LLDB_INVALID_REGNUM,    gdb_w14_mips64),
-    DEFINE_MSA (w15,   NULL,   gcc_dwarf_w15_mips64,  gcc_dwarf_w15_mips64,  LLDB_INVALID_REGNUM,    gdb_w15_mips64),
-    DEFINE_MSA (w16,   NULL,   gcc_dwarf_w16_mips64,  gcc_dwarf_w16_mips64,  LLDB_INVALID_REGNUM,    gdb_w16_mips64),
-    DEFINE_MSA (w17,   NULL,   gcc_dwarf_w17_mips64,  gcc_dwarf_w17_mips64,  LLDB_INVALID_REGNUM,    gdb_w17_mips64),
-    DEFINE_MSA (w18,   NULL,   gcc_dwarf_w18_mips64,  gcc_dwarf_w18_mips64,  LLDB_INVALID_REGNUM,    gdb_w18_mips64),
-    DEFINE_MSA (w19,   NULL,   gcc_dwarf_w19_mips64,  gcc_dwarf_w19_mips64,  LLDB_INVALID_REGNUM,    gdb_w19_mips64),
-    DEFINE_MSA (w20,   NULL,   gcc_dwarf_w10_mips64,  gcc_dwarf_w20_mips64,  LLDB_INVALID_REGNUM,    gdb_w20_mips64),
-    DEFINE_MSA (w21,   NULL,   gcc_dwarf_w21_mips64,  gcc_dwarf_w21_mips64,  LLDB_INVALID_REGNUM,    gdb_w21_mips64),
-    DEFINE_MSA (w22,   NULL,   gcc_dwarf_w22_mips64,  gcc_dwarf_w22_mips64,  LLDB_INVALID_REGNUM,    gdb_w22_mips64),
-    DEFINE_MSA (w23,   NULL,   gcc_dwarf_w23_mips64,  gcc_dwarf_w23_mips64,  LLDB_INVALID_REGNUM,    gdb_w23_mips64),
-    DEFINE_MSA (w24,   NULL,   gcc_dwarf_w24_mips64,  gcc_dwarf_w24_mips64,  LLDB_INVALID_REGNUM,    gdb_w24_mips64),
-    DEFINE_MSA (w25,   NULL,   gcc_dwarf_w25_mips64,  gcc_dwarf_w25_mips64,  LLDB_INVALID_REGNUM,    gdb_w25_mips64),
-    DEFINE_MSA (w26,   NULL,   gcc_dwarf_w26_mips64,  gcc_dwarf_w26_mips64,  LLDB_INVALID_REGNUM,    gdb_w26_mips64),
-    DEFINE_MSA (w27,   NULL,   gcc_dwarf_w27_mips64,  gcc_dwarf_w27_mips64,  LLDB_INVALID_REGNUM,    gdb_w27_mips64),
-    DEFINE_MSA (w28,   NULL,   gcc_dwarf_w28_mips64,  gcc_dwarf_w28_mips64,  LLDB_INVALID_REGNUM,    gdb_w28_mips64),
-    DEFINE_MSA (w29,   NULL,   gcc_dwarf_w29_mips64,  gcc_dwarf_w29_mips64,  LLDB_INVALID_REGNUM,    gdb_w29_mips64),
-    DEFINE_MSA (w30,   NULL,   gcc_dwarf_w30_mips64,  gcc_dwarf_w30_mips64,  LLDB_INVALID_REGNUM,    gdb_w30_mips64),
-    DEFINE_MSA (w31,   NULL,   gcc_dwarf_w31_mips64,  gcc_dwarf_w31_mips64,  LLDB_INVALID_REGNUM,    gdb_w31_mips64),
-    DEFINE_MSA_INFO (mcsr,  NULL,   gcc_dwarf_mcsr_mips64, gcc_dwarf_mcsr_mips64, LLDB_INVALID_REGNUM,    gdb_mcsr_mips64),
-    DEFINE_MSA_INFO (mir,   NULL,   gcc_dwarf_mir_mips64,  gcc_dwarf_mir_mips64,  LLDB_INVALID_REGNUM,    gdb_mir_mips64),
-    DEFINE_MSA_INFO (fcsr,  NULL,   gcc_dwarf_fcsr_mips64, gcc_dwarf_fcsr_mips64, LLDB_INVALID_REGNUM,    gdb_fcsr_mips64),
-    DEFINE_MSA_INFO (fir,   NULL,   gcc_dwarf_fir_mips64,  gcc_dwarf_fir_mips64,  LLDB_INVALID_REGNUM,    gdb_fir_mips64),
-    DEFINE_MSA_INFO (config5, NULL,   gcc_dwarf_config5_mips64,  gcc_dwarf_config5_mips64,  LLDB_INVALID_REGNUM,    gdb_config5_mips64)
+    DEFINE_GPR(zero,     "r0",      dwarf_zero_mips64,      dwarf_zero_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r1,       nullptr,   dwarf_r1_mips64,        dwarf_r1_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r2,       nullptr,   dwarf_r2_mips64,        dwarf_r2_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r3,       nullptr,   dwarf_r3_mips64,        dwarf_r3_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r4,       nullptr,   dwarf_r4_mips64,        dwarf_r4_mips64,    LLDB_REGNUM_GENERIC_ARG1,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r5,       nullptr,   dwarf_r5_mips64,        dwarf_r5_mips64,    LLDB_REGNUM_GENERIC_ARG2,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r6,       nullptr,   dwarf_r6_mips64,        dwarf_r6_mips64,    LLDB_REGNUM_GENERIC_ARG3,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r7,       nullptr,   dwarf_r7_mips64,        dwarf_r7_mips64,    LLDB_REGNUM_GENERIC_ARG4,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r8,       nullptr,   dwarf_r8_mips64,        dwarf_r8_mips64,    LLDB_REGNUM_GENERIC_ARG5,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r9,       nullptr,   dwarf_r9_mips64,        dwarf_r9_mips64,    LLDB_REGNUM_GENERIC_ARG6,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r10,      nullptr,   dwarf_r10_mips64,       dwarf_r10_mips64,   LLDB_REGNUM_GENERIC_ARG7,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r11,      nullptr,   dwarf_r11_mips64,       dwarf_r11_mips64,   LLDB_REGNUM_GENERIC_ARG8,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r12,      nullptr,   dwarf_r12_mips64,       dwarf_r12_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r13,      nullptr,   dwarf_r13_mips64,       dwarf_r13_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r14,      nullptr,   dwarf_r14_mips64,       dwarf_r14_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r15,      nullptr,   dwarf_r15_mips64,       dwarf_r15_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r16,      nullptr,   dwarf_r16_mips64,       dwarf_r16_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r17,      nullptr,   dwarf_r17_mips64,       dwarf_r17_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r18,      nullptr,   dwarf_r18_mips64,       dwarf_r18_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r19,      nullptr,   dwarf_r19_mips64,       dwarf_r19_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r20,      nullptr,   dwarf_r20_mips64,       dwarf_r20_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r21,      nullptr,   dwarf_r21_mips64,       dwarf_r21_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r22,      nullptr,   dwarf_r22_mips64,       dwarf_r22_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r23,      nullptr,   dwarf_r23_mips64,       dwarf_r23_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r24,      nullptr,   dwarf_r24_mips64,       dwarf_r24_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r25,      nullptr,   dwarf_r25_mips64,       dwarf_r25_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r26,      nullptr,   dwarf_r26_mips64,       dwarf_r26_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r27,      nullptr,   dwarf_r27_mips64,       dwarf_r27_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(gp,       "r28",     dwarf_gp_mips64,        dwarf_gp_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(sp,       "r29",     dwarf_sp_mips64,        dwarf_sp_mips64,    LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r30,      nullptr,   dwarf_r30_mips64,       dwarf_r30_mips64,   LLDB_REGNUM_GENERIC_FP,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(ra,       "r31",     dwarf_ra_mips64,        dwarf_ra_mips64,    LLDB_REGNUM_GENERIC_RA,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR_INFO(sr,       nullptr,   dwarf_sr_mips64,        dwarf_sr_mips64,    LLDB_REGNUM_GENERIC_FLAGS,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(mullo,    nullptr,   dwarf_lo_mips64,        dwarf_lo_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(mulhi,    nullptr,   dwarf_hi_mips64,        dwarf_hi_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(badvaddr, nullptr,   dwarf_bad_mips64,       dwarf_bad_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR_INFO(cause,    nullptr,   dwarf_cause_mips64,     dwarf_cause_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(pc,       "pc",      dwarf_pc_mips64,        dwarf_pc_mips64,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
+    DEFINE_GPR_INFO(config5,    nullptr,   dwarf_config5_mips64,     dwarf_config5_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f0,    nullptr,    dwarf_f0_mips64,       dwarf_f0_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f1,    nullptr,    dwarf_f1_mips64,       dwarf_f1_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f2,    nullptr,    dwarf_f2_mips64,       dwarf_f2_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f3,    nullptr,    dwarf_f3_mips64,       dwarf_f3_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f4,    nullptr,    dwarf_f4_mips64,       dwarf_f4_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f5,    nullptr,    dwarf_f5_mips64,       dwarf_f5_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f6,    nullptr,    dwarf_f6_mips64,       dwarf_f6_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f7,    nullptr,    dwarf_f7_mips64,       dwarf_f7_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f8,    nullptr,    dwarf_f8_mips64,       dwarf_f8_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f9,    nullptr,    dwarf_f9_mips64,       dwarf_f9_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f10,   nullptr,    dwarf_f10_mips64,      dwarf_f10_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f11,   nullptr,    dwarf_f11_mips64,      dwarf_f11_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f12,   nullptr,    dwarf_f12_mips64,      dwarf_f12_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f13,   nullptr,    dwarf_f13_mips64,      dwarf_f13_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f14,   nullptr,    dwarf_f14_mips64,      dwarf_f14_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f15,   nullptr,    dwarf_f15_mips64,      dwarf_f15_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f16,   nullptr,    dwarf_f16_mips64,      dwarf_f16_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f17,   nullptr,    dwarf_f17_mips64,      dwarf_f17_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f18,   nullptr,    dwarf_f18_mips64,      dwarf_f18_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f19,   nullptr,    dwarf_f19_mips64,      dwarf_f19_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f20,   nullptr,    dwarf_f20_mips64,      dwarf_f20_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f21,   nullptr,    dwarf_f21_mips64,      dwarf_f21_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f22,   nullptr,    dwarf_f22_mips64,      dwarf_f22_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f23,   nullptr,    dwarf_f23_mips64,      dwarf_f23_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f24,   nullptr,    dwarf_f24_mips64,      dwarf_f24_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f25,   nullptr,    dwarf_f25_mips64,      dwarf_f25_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f26,   nullptr,    dwarf_f26_mips64,      dwarf_f26_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f27,   nullptr,    dwarf_f27_mips64,      dwarf_f27_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f28,   nullptr,    dwarf_f28_mips64,      dwarf_f28_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f29,   nullptr,    dwarf_f29_mips64,      dwarf_f29_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f30,   nullptr,    dwarf_f30_mips64,      dwarf_f30_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (f31,   nullptr,    dwarf_f31_mips64,      dwarf_f31_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (fcsr,  nullptr,    dwarf_fcsr_mips64,     dwarf_fcsr_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (fir,   nullptr,    dwarf_fir_mips64,      dwarf_fir_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_FPR (config5,   nullptr,    dwarf_config5_mips64,      dwarf_config5_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w0,    nullptr,    dwarf_w0_mips64,       dwarf_w0_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w1,    nullptr,    dwarf_w1_mips64,       dwarf_w1_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w2,    nullptr,    dwarf_w2_mips64,       dwarf_w2_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w3,    nullptr,    dwarf_w3_mips64,       dwarf_w3_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w4,    nullptr,    dwarf_w4_mips64,       dwarf_w4_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w5,    nullptr,    dwarf_w5_mips64,       dwarf_w5_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w6,    nullptr,    dwarf_w6_mips64,       dwarf_w6_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w7,    nullptr,    dwarf_w7_mips64,       dwarf_w7_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w8,    nullptr,    dwarf_w8_mips64,       dwarf_w8_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w9,    nullptr,    dwarf_w9_mips64,       dwarf_w9_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w10,   nullptr,    dwarf_w10_mips64,      dwarf_w10_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w11,   nullptr,    dwarf_w11_mips64,      dwarf_w11_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w12,   nullptr,    dwarf_w12_mips64,      dwarf_w12_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w13,   nullptr,    dwarf_w13_mips64,      dwarf_w13_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w14,   nullptr,    dwarf_w14_mips64,      dwarf_w14_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w15,   nullptr,    dwarf_w15_mips64,      dwarf_w15_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w16,   nullptr,    dwarf_w16_mips64,      dwarf_w16_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w17,   nullptr,    dwarf_w17_mips64,      dwarf_w17_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w18,   nullptr,    dwarf_w18_mips64,      dwarf_w18_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w19,   nullptr,    dwarf_w19_mips64,      dwarf_w19_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w20,   nullptr,    dwarf_w10_mips64,      dwarf_w20_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w21,   nullptr,    dwarf_w21_mips64,      dwarf_w21_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w22,   nullptr,    dwarf_w22_mips64,      dwarf_w22_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w23,   nullptr,    dwarf_w23_mips64,      dwarf_w23_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w24,   nullptr,    dwarf_w24_mips64,      dwarf_w24_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w25,   nullptr,    dwarf_w25_mips64,      dwarf_w25_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w26,   nullptr,    dwarf_w26_mips64,      dwarf_w26_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w27,   nullptr,    dwarf_w27_mips64,      dwarf_w27_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w28,   nullptr,    dwarf_w28_mips64,      dwarf_w28_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w29,   nullptr,    dwarf_w29_mips64,      dwarf_w29_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w30,   nullptr,    dwarf_w30_mips64,      dwarf_w30_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA (w31,   nullptr,    dwarf_w31_mips64,      dwarf_w31_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA_INFO (mcsr,  nullptr,    dwarf_mcsr_mips64,     dwarf_mcsr_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA_INFO (mir,   nullptr,    dwarf_mir_mips64,      dwarf_mir_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA_INFO (fcsr,  nullptr,    dwarf_fcsr_mips64,     dwarf_fcsr_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA_INFO (fir,   nullptr,    dwarf_fir_mips64,      dwarf_fir_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_MSA_INFO (config5, nullptr,    dwarf_config5_mips64,      dwarf_config5_mips64,  LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM)
 #endif
 };
 
diff --git a/source/Plugins/Process/Utility/RegisterInfos_powerpc.h b/source/Plugins/Process/Utility/RegisterInfos_powerpc.h
index fe145e99588be..95347ae51592f 100644
--- a/source/Plugins/Process/Utility/RegisterInfos_powerpc.h
+++ b/source/Plugins/Process/Utility/RegisterInfos_powerpc.h
@@ -24,15 +24,15 @@
 // Note that the size and offset will be updated by platform-specific classes.
 #define DEFINE_GPR(reg, alt, lldb_kind)           \
     { #reg, alt, GPR_SIZE(reg), GPR_OFFSET(reg), eEncodingUint, \
-      eFormatHex, { gcc_dwarf_##reg##_powerpc, gcc_dwarf_##reg##_powerpc, lldb_kind, gdb_##reg##_powerpc, gpr_##reg##_powerpc }, NULL, NULL }
+      eFormatHex, { dwarf_##reg##_powerpc, dwarf_##reg##_powerpc, lldb_kind, LLDB_INVALID_REGNUM, gpr_##reg##_powerpc }, NULL, NULL }
 #define DEFINE_FPR(reg, lldb_kind)           \
     { #reg, NULL, 8, FPR_OFFSET(reg), eEncodingIEEE754, \
-      eFormatFloat, { gcc_dwarf_##reg##_powerpc, gcc_dwarf_##reg##_powerpc, lldb_kind, gdb_##reg##_powerpc, fpr_##reg##_powerpc }, NULL, NULL }
+      eFormatFloat, { dwarf_##reg##_powerpc, dwarf_##reg##_powerpc, lldb_kind, LLDB_INVALID_REGNUM, fpr_##reg##_powerpc }, NULL, NULL }
 #define DEFINE_VMX(reg, lldb_kind)           \
     { #reg, NULL, 16, VMX_OFFSET(reg), eEncodingVector, \
-      eFormatVectorOfUInt32, { gcc_dwarf_##reg##_powerpc, gcc_dwarf_##reg##_powerpc, lldb_kind, gdb_##reg##_powerpc, vmx_##reg##_powerpc }, NULL, NULL }
+      eFormatVectorOfUInt32, { dwarf_##reg##_powerpc, dwarf_##reg##_powerpc, lldb_kind, LLDB_INVALID_REGNUM, vmx_##reg##_powerpc }, NULL, NULL }
 
-    // General purpose registers.                 GCC,                  DWARF,              Generic,                GDB
+    // General purpose registers.            EH_Frame,                  DWARF,              Generic,                Process Plugin
 #define POWERPC_REGS \
     DEFINE_GPR(r0,       NULL,  LLDB_INVALID_REGNUM), \
     DEFINE_GPR(r1,       "sp",  LLDB_REGNUM_GENERIC_SP), \
@@ -103,7 +103,7 @@
     DEFINE_FPR(f29,      LLDB_INVALID_REGNUM), \
     DEFINE_FPR(f30,      LLDB_INVALID_REGNUM), \
     DEFINE_FPR(f31,      LLDB_INVALID_REGNUM), \
-    { "fpscr", NULL, 8, FPR_OFFSET(fpscr), eEncodingUint, eFormatHex, { gcc_dwarf_fpscr_powerpc, gcc_dwarf_fpscr_powerpc, LLDB_INVALID_REGNUM, gdb_fpscr_powerpc, fpr_fpscr_powerpc }, NULL, NULL }, \
+    { "fpscr", NULL, 8, FPR_OFFSET(fpscr), eEncodingUint, eFormatHex, { dwarf_fpscr_powerpc, dwarf_fpscr_powerpc, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, fpr_fpscr_powerpc }, NULL, NULL }, \
     DEFINE_VMX(v0,       LLDB_INVALID_REGNUM), \
     DEFINE_VMX(v1,       LLDB_INVALID_REGNUM), \
     DEFINE_VMX(v2,       LLDB_INVALID_REGNUM), \
@@ -136,8 +136,8 @@
     DEFINE_VMX(v29,      LLDB_INVALID_REGNUM), \
     DEFINE_VMX(v30,      LLDB_INVALID_REGNUM), \
     DEFINE_VMX(v31,      LLDB_INVALID_REGNUM), \
-    { "vrsave", NULL, 4, VMX_OFFSET(vrsave), eEncodingUint, eFormatHex, { gcc_dwarf_vrsave_powerpc, gcc_dwarf_vrsave_powerpc, LLDB_INVALID_REGNUM, gdb_vrsave_powerpc, vmx_vrsave_powerpc }, NULL, NULL }, \
-    { "vscr", NULL, 4, VMX_OFFSET(vscr), eEncodingUint, eFormatHex, { gcc_dwarf_vscr_powerpc, gcc_dwarf_vscr_powerpc, LLDB_INVALID_REGNUM, gdb_vscr_powerpc, vmx_vscr_powerpc }, NULL, NULL },
+    { "vrsave", NULL, 4, VMX_OFFSET(vrsave), eEncodingUint, eFormatHex, { dwarf_vrsave_powerpc, dwarf_vrsave_powerpc, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, vmx_vrsave_powerpc }, NULL, NULL }, \
+    { "vscr", NULL, 4, VMX_OFFSET(vscr), eEncodingUint, eFormatHex, { dwarf_vscr_powerpc, dwarf_vscr_powerpc, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, vmx_vscr_powerpc }, NULL, NULL },
 
 static RegisterInfo
 g_register_infos_powerpc64[] =
diff --git a/source/Plugins/Process/Utility/RegisterInfos_x86_64.h b/source/Plugins/Process/Utility/RegisterInfos_x86_64.h
index 5da74ff834870..a393089dd129b 100644
--- a/source/Plugins/Process/Utility/RegisterInfos_x86_64.h
+++ b/source/Plugins/Process/Utility/RegisterInfos_x86_64.h
@@ -1,15 +1,21 @@
-//===-- RegisterInfos_x86_64.h ---------------------------------*- C++ -*-===//
+//===-- RegisterInfos_x86_64.h ----------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
-//===---------------------------------------------------------------------===//
-#include "llvm/Support/Compiler.h"
+//===----------------------------------------------------------------------===//
 
+// C Includes
 #include <stddef.h>
 
+// C++ Includes
+// Other libraries and framework includes
+#include "llvm/Support/Compiler.h"
+
+// Project includes
+
 // Computes the offset of the given GPR in the user data area.
 #define GPR_OFFSET(regname) \
     (LLVM_EXTENSION offsetof(GPR, regname))
@@ -44,7 +50,7 @@
 
 #define DR_SIZE sizeof(((DBG*)NULL)->dr[0])
 
-// RegisterKind: GCC, DWARF, Generic, GDB, LLDB
+// RegisterKind: EHFrame, DWARF, Generic, Process Plugin, LLDB
 
 // Note that the size and offset will be updated by platform-specific classes.
 #define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4)    \
@@ -58,25 +64,25 @@
 #define DEFINE_FP_ST(reg, i)                                       \
     { #reg#i, NULL, FP_SIZE, LLVM_EXTENSION FPR_OFFSET(stmm[i]),   \
       eEncodingVector, eFormatVectorOfUInt8,                       \
-      { gcc_dwarf_st##i##_x86_64, gcc_dwarf_st##i##_x86_64, LLDB_INVALID_REGNUM, gdb_st##i##_x86_64, lldb_st##i##_x86_64 }, \
+      { dwarf_st##i##_x86_64, dwarf_st##i##_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_st##i##_x86_64 }, \
       NULL, NULL }
 
 #define DEFINE_FP_MM(reg, i)                                                \
     { #reg#i, NULL, sizeof(uint64_t), LLVM_EXTENSION FPR_OFFSET(stmm[i]),   \
       eEncodingUint, eFormatHex,                                            \
-      { gcc_dwarf_mm##i##_x86_64, gcc_dwarf_mm##i##_x86_64, LLDB_INVALID_REGNUM, gdb_st##i##_x86_64, lldb_mm##i##_x86_64 }, \
+      { dwarf_mm##i##_x86_64, dwarf_mm##i##_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_mm##i##_x86_64 }, \
       NULL, NULL }
 
 #define DEFINE_XMM(reg, i)                                         \
     { #reg#i, NULL, XMM_SIZE, LLVM_EXTENSION FPR_OFFSET(reg[i]),   \
       eEncodingVector, eFormatVectorOfUInt8,                       \
-      { gcc_dwarf_##reg##i##_x86_64, gcc_dwarf_##reg##i##_x86_64, LLDB_INVALID_REGNUM, gdb_##reg##i##_x86_64, lldb_##reg##i##_x86_64}, \
+      { dwarf_##reg##i##_x86_64, dwarf_##reg##i##_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_##reg##i##_x86_64}, \
       NULL, NULL }
 
 #define DEFINE_YMM(reg, i)                                                          \
     { #reg#i, NULL, YMM_SIZE, LLVM_EXTENSION YMM_OFFSET(i),                         \
       eEncodingVector, eFormatVectorOfUInt8,                                        \
-      { gcc_dwarf_##reg##i##h_x86_64, gcc_dwarf_##reg##i##h_x86_64, LLDB_INVALID_REGNUM, gdb_##reg##i##h_x86_64, lldb_##reg##i##_x86_64 }, \
+      { dwarf_##reg##i##h_x86_64, dwarf_##reg##i##h_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_##reg##i##_x86_64 }, \
       NULL, NULL }
 
 #define DEFINE_DR(reg, i)                                               \
@@ -100,31 +106,31 @@
 static RegisterInfo
 g_register_infos_x86_64[] =
 {
-    // General purpose registers.                GCC,                   DWARF,                Generic,                  GDB
-    DEFINE_GPR(rax,    NULL,    gcc_dwarf_rax_x86_64,    gcc_dwarf_rax_x86_64,    LLDB_INVALID_REGNUM,       gdb_rax_x86_64),
-    DEFINE_GPR(rbx,    NULL,    gcc_dwarf_rbx_x86_64,    gcc_dwarf_rbx_x86_64,    LLDB_INVALID_REGNUM,       gdb_rbx_x86_64),
-    DEFINE_GPR(rcx,    "arg4",  gcc_dwarf_rcx_x86_64,    gcc_dwarf_rcx_x86_64,    LLDB_REGNUM_GENERIC_ARG4,  gdb_rcx_x86_64),
-    DEFINE_GPR(rdx,    "arg3",  gcc_dwarf_rdx_x86_64,    gcc_dwarf_rdx_x86_64,    LLDB_REGNUM_GENERIC_ARG3,  gdb_rdx_x86_64),
-    DEFINE_GPR(rdi,    "arg1",  gcc_dwarf_rdi_x86_64,    gcc_dwarf_rdi_x86_64,    LLDB_REGNUM_GENERIC_ARG1,  gdb_rdi_x86_64),
-    DEFINE_GPR(rsi,    "arg2",  gcc_dwarf_rsi_x86_64,    gcc_dwarf_rsi_x86_64,    LLDB_REGNUM_GENERIC_ARG2,  gdb_rsi_x86_64),
-    DEFINE_GPR(rbp,    "fp",    gcc_dwarf_rbp_x86_64,    gcc_dwarf_rbp_x86_64,    LLDB_REGNUM_GENERIC_FP,    gdb_rbp_x86_64),
-    DEFINE_GPR(rsp,    "sp",    gcc_dwarf_rsp_x86_64,    gcc_dwarf_rsp_x86_64,    LLDB_REGNUM_GENERIC_SP,    gdb_rsp_x86_64),
-    DEFINE_GPR(r8,     "arg5",  gcc_dwarf_r8_x86_64,     gcc_dwarf_r8_x86_64,     LLDB_REGNUM_GENERIC_ARG5,  gdb_r8_x86_64),
-    DEFINE_GPR(r9,     "arg6",  gcc_dwarf_r9_x86_64,     gcc_dwarf_r9_x86_64,     LLDB_REGNUM_GENERIC_ARG6,  gdb_r9_x86_64),
-    DEFINE_GPR(r10,    NULL,    gcc_dwarf_r10_x86_64,    gcc_dwarf_r10_x86_64,    LLDB_INVALID_REGNUM,       gdb_r10_x86_64),
-    DEFINE_GPR(r11,    NULL,    gcc_dwarf_r11_x86_64,    gcc_dwarf_r11_x86_64,    LLDB_INVALID_REGNUM,       gdb_r11_x86_64),
-    DEFINE_GPR(r12,    NULL,    gcc_dwarf_r12_x86_64,    gcc_dwarf_r12_x86_64,    LLDB_INVALID_REGNUM,       gdb_r12_x86_64),
-    DEFINE_GPR(r13,    NULL,    gcc_dwarf_r13_x86_64,    gcc_dwarf_r13_x86_64,    LLDB_INVALID_REGNUM,       gdb_r13_x86_64),
-    DEFINE_GPR(r14,    NULL,    gcc_dwarf_r14_x86_64,    gcc_dwarf_r14_x86_64,    LLDB_INVALID_REGNUM,       gdb_r14_x86_64),
-    DEFINE_GPR(r15,    NULL,    gcc_dwarf_r15_x86_64,    gcc_dwarf_r15_x86_64,    LLDB_INVALID_REGNUM,       gdb_r15_x86_64),
-    DEFINE_GPR(rip,    "pc",    gcc_dwarf_rip_x86_64,    gcc_dwarf_rip_x86_64,    LLDB_REGNUM_GENERIC_PC,    gdb_rip_x86_64),
-    DEFINE_GPR(rflags, "flags", gcc_dwarf_rflags_x86_64, gcc_dwarf_rflags_x86_64, LLDB_REGNUM_GENERIC_FLAGS, gdb_rflags_x86_64),
-    DEFINE_GPR(cs,     NULL,    gcc_dwarf_cs_x86_64,     gcc_dwarf_cs_x86_64,     LLDB_INVALID_REGNUM,       gdb_cs_x86_64),
-    DEFINE_GPR(fs,     NULL,    gcc_dwarf_fs_x86_64,     gcc_dwarf_fs_x86_64,     LLDB_INVALID_REGNUM,       gdb_fs_x86_64),
-    DEFINE_GPR(gs,     NULL,    gcc_dwarf_gs_x86_64,     gcc_dwarf_gs_x86_64,     LLDB_INVALID_REGNUM,       gdb_gs_x86_64),
-    DEFINE_GPR(ss,     NULL,    gcc_dwarf_ss_x86_64,     gcc_dwarf_ss_x86_64,     LLDB_INVALID_REGNUM,       gdb_ss_x86_64),
-    DEFINE_GPR(ds,     NULL,    gcc_dwarf_ds_x86_64,     gcc_dwarf_ds_x86_64,     LLDB_INVALID_REGNUM,       gdb_ds_x86_64),
-    DEFINE_GPR(es,     NULL,    gcc_dwarf_es_x86_64,     gcc_dwarf_es_x86_64,     LLDB_INVALID_REGNUM,       gdb_es_x86_64),
+    // General purpose registers.           EH_Frame,                   DWARF,                Generic,                Process Plugin
+    DEFINE_GPR(rax,    nullptr,     dwarf_rax_x86_64,        dwarf_rax_x86_64,    LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(rbx,    nullptr,     dwarf_rbx_x86_64,        dwarf_rbx_x86_64,    LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(rcx,    "arg4",      dwarf_rcx_x86_64,        dwarf_rcx_x86_64,    LLDB_REGNUM_GENERIC_ARG4,  LLDB_INVALID_REGNUM),
+    DEFINE_GPR(rdx,    "arg3",      dwarf_rdx_x86_64,        dwarf_rdx_x86_64,    LLDB_REGNUM_GENERIC_ARG3,  LLDB_INVALID_REGNUM),
+    DEFINE_GPR(rdi,    "arg1",      dwarf_rdi_x86_64,        dwarf_rdi_x86_64,    LLDB_REGNUM_GENERIC_ARG1,  LLDB_INVALID_REGNUM),
+    DEFINE_GPR(rsi,    "arg2",      dwarf_rsi_x86_64,        dwarf_rsi_x86_64,    LLDB_REGNUM_GENERIC_ARG2,  LLDB_INVALID_REGNUM),
+    DEFINE_GPR(rbp,    "fp",        dwarf_rbp_x86_64,        dwarf_rbp_x86_64,    LLDB_REGNUM_GENERIC_FP,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(rsp,    "sp",        dwarf_rsp_x86_64,        dwarf_rsp_x86_64,    LLDB_REGNUM_GENERIC_SP,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r8,     "arg5",      dwarf_r8_x86_64,         dwarf_r8_x86_64,     LLDB_REGNUM_GENERIC_ARG5,  LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r9,     "arg6",      dwarf_r9_x86_64,         dwarf_r9_x86_64,     LLDB_REGNUM_GENERIC_ARG6,  LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r10,    nullptr,     dwarf_r10_x86_64,        dwarf_r10_x86_64,    LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r11,    nullptr,     dwarf_r11_x86_64,        dwarf_r11_x86_64,    LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r12,    nullptr,     dwarf_r12_x86_64,        dwarf_r12_x86_64,    LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r13,    nullptr,     dwarf_r13_x86_64,        dwarf_r13_x86_64,    LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r14,    nullptr,     dwarf_r14_x86_64,        dwarf_r14_x86_64,    LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(r15,    nullptr,     dwarf_r15_x86_64,        dwarf_r15_x86_64,    LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(rip,    "pc",        dwarf_rip_x86_64,        dwarf_rip_x86_64,    LLDB_REGNUM_GENERIC_PC,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(rflags, "flags",     dwarf_rflags_x86_64,     dwarf_rflags_x86_64, LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM),
+    DEFINE_GPR(cs,     nullptr,     dwarf_cs_x86_64,         dwarf_cs_x86_64,     LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(fs,     nullptr,     dwarf_fs_x86_64,         dwarf_fs_x86_64,     LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(gs,     nullptr,     dwarf_gs_x86_64,         dwarf_gs_x86_64,     LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(ss,     nullptr,     dwarf_ss_x86_64,         dwarf_ss_x86_64,     LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(ds,     nullptr,     dwarf_ds_x86_64,         dwarf_ds_x86_64,     LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
+    DEFINE_GPR(es,     nullptr,     dwarf_es_x86_64,         dwarf_es_x86_64,     LLDB_INVALID_REGNUM,       LLDB_INVALID_REGNUM),
 
     DEFINE_GPR_PSEUDO_32(eax, rax),
     DEFINE_GPR_PSEUDO_32(ebx, rbx),
@@ -179,16 +185,16 @@ g_register_infos_x86_64[] =
     DEFINE_GPR_PSEUDO_8L(r14l, r14),
     DEFINE_GPR_PSEUDO_8L(r15l, r15),
 
-    // i387 Floating point registers.     GCC,                                   DWARF,               Generic,            GDB
-    DEFINE_FPR(fctrl,     fctrl,          gcc_dwarf_fctrl_x86_64, gcc_dwarf_fctrl_x86_64, LLDB_INVALID_REGNUM, gdb_fctrl_x86_64),
-    DEFINE_FPR(fstat,     fstat,          gcc_dwarf_fstat_x86_64, gcc_dwarf_fstat_x86_64, LLDB_INVALID_REGNUM, gdb_fstat_x86_64),
-    DEFINE_FPR(ftag,      ftag,           LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM, gdb_ftag_x86_64),
-    DEFINE_FPR(fop,       fop,            LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM, gdb_fop_x86_64),
-    DEFINE_FPR(fiseg,     ptr.i386_.fiseg, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM, gdb_fiseg_x86_64),
-    DEFINE_FPR(fioff,     ptr.i386_.fioff, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM, gdb_fioff_x86_64),
-    DEFINE_FPR(foseg,     ptr.i386_.foseg, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM, gdb_foseg_x86_64),
-    DEFINE_FPR(fooff,     ptr.i386_.fooff, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM, gdb_fooff_x86_64),
-    DEFINE_FPR(mxcsr,     mxcsr,          gcc_dwarf_mxcsr_x86_64, gcc_dwarf_mxcsr_x86_64, LLDB_INVALID_REGNUM, gdb_mxcsr_x86_64),
+    // i387 Floating point registers. EH_frame,                                  DWARF,               Generic,          Process Plugin
+    DEFINE_FPR(fctrl,     fctrl,              dwarf_fctrl_x86_64,     dwarf_fctrl_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(fstat,     fstat,              dwarf_fstat_x86_64,     dwarf_fstat_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(ftag,      ftag,           LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(fop,       fop,            LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(fiseg,     ptr.i386_.fiseg, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(fioff,     ptr.i386_.fioff, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(foseg,     ptr.i386_.foseg, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(fooff,     ptr.i386_.fooff, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
+    DEFINE_FPR(mxcsr,     mxcsr,              dwarf_mxcsr_x86_64,     dwarf_mxcsr_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
     DEFINE_FPR(mxcsrmask, mxcsrmask,      LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
 
     // FP registers.
@@ -255,6 +261,7 @@ g_register_infos_x86_64[] =
     DEFINE_DR(dr, 6),
     DEFINE_DR(dr, 7)
 };
+
 static_assert((sizeof(g_register_infos_x86_64) / sizeof(g_register_infos_x86_64[0])) == k_num_registers_x86_64,
     "g_register_infos_x86_64 has wrong number of register infos");
 
@@ -275,7 +282,6 @@ static_assert((sizeof(g_register_infos_x86_64) / sizeof(g_register_infos_x86_64[
 
 #endif // DECLARE_REGISTER_INFOS_X86_64_STRUCT
 
-
 #ifdef UPDATE_REGISTER_INFOS_I386_STRUCT_WITH_X86_64_OFFSETS
 
 #define UPDATE_GPR_INFO(reg, reg64)                                             \
diff --git a/source/Plugins/Process/Utility/StopInfoMachException.cpp b/source/Plugins/Process/Utility/StopInfoMachException.cpp
index 7c68d0d07821b..3bf766e875c90 100644
--- a/source/Plugins/Process/Utility/StopInfoMachException.cpp
+++ b/source/Plugins/Process/Utility/StopInfoMachException.cpp
@@ -58,6 +58,7 @@ StopInfoMachException::GetDescription ()
                 }
                 break;
             case llvm::Triple::arm:
+            case llvm::Triple::thumb:
                 switch (m_exc_code)
                 {
                 case 0x101: code_desc = "EXC_ARM_DA_ALIGN"; break;
@@ -104,6 +105,7 @@ StopInfoMachException::GetDescription ()
                 break;
 
             case llvm::Triple::arm:
+            case llvm::Triple::thumb:
                 if (m_exc_code == 1)
                     code_desc = "EXC_ARM_UNDEFINED";
                 break;
@@ -188,6 +190,7 @@ StopInfoMachException::GetDescription ()
                     break;
                 
                 case llvm::Triple::arm:
+                case llvm::Triple::thumb:
                     switch (m_exc_code)
                     {
                     case 0x101: code_desc = "EXC_ARM_DA_ALIGN"; break;
@@ -408,6 +411,7 @@ StopInfoMachException::CreateStopReasonWithMachException
                     break;
                 
                 case llvm::Triple::arm:
+                case llvm::Triple::thumb:
                     if (exc_code == 0x102) // EXC_ARM_DA_DEBUG
                     {
                         // It's a watchpoint, then, if the exc_sub_code indicates a known/enabled
diff --git a/source/Plugins/Process/Utility/StopInfoMachException.h b/source/Plugins/Process/Utility/StopInfoMachException.h
index 130ee0b709b0a..25e05ecc1ec72 100644
--- a/source/Plugins/Process/Utility/StopInfoMachException.h
+++ b/source/Plugins/Process/Utility/StopInfoMachException.h
@@ -38,19 +38,16 @@ public:
     {
     }
 
-    virtual ~StopInfoMachException()
-    {
-    }
+    ~StopInfoMachException() override = default;
 
-
-    virtual lldb::StopReason
-    GetStopReason () const
+    lldb::StopReason
+    GetStopReason() const override
     {
         return lldb::eStopReasonException;
     }
 
-    virtual const char *
-    GetDescription ();
+    const char *
+    GetDescription() override;
 
     // Since some mach exceptions will be reported as breakpoints, signals,
     // or trace, we use this static accessor which will translate the mach
@@ -71,7 +68,6 @@ protected:
     uint64_t m_exc_subcode;
 };
 
-
 } // namespace lldb_private
 
-#endif  // liblldb_StopInfoMachException_h_
+#endif // liblldb_StopInfoMachException_h_
diff --git a/source/Plugins/Process/Utility/ThreadMemory.h b/source/Plugins/Process/Utility/ThreadMemory.h
index 07eb45dcb431b..1e7cbfa448153 100644
--- a/source/Plugins/Process/Utility/ThreadMemory.h
+++ b/source/Plugins/Process/Utility/ThreadMemory.h
@@ -1,4 +1,4 @@
-//===-- ThreadMemory.h -----------------------------------------*- C++ -*-===//
+//===-- ThreadMemory.h ------------------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -10,13 +10,18 @@
 #ifndef liblldb_ThreadMemory_h_
 #define liblldb_ThreadMemory_h_
 
+// C Includes
+// C++ Includes
+#include <string>
+
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Target/Thread.h"
 
 class ThreadMemory :
     public lldb_private::Thread
 {
 public:
-
     ThreadMemory (lldb_private::Process &process,
                   lldb::tid_t tid,
                   const lldb::ValueObjectSP &thread_info_valobj_sp);
@@ -27,69 +32,65 @@ public:
                   const char *queue,
                   lldb::addr_t register_data_addr);
 
-    virtual
-    ~ThreadMemory();
+    ~ThreadMemory() override;
 
-    //------------------------------------------------------------------
-    // lldb_private::Thread methods
-    //------------------------------------------------------------------
-    virtual lldb::RegisterContextSP
-    GetRegisterContext ();
+    lldb::RegisterContextSP
+    GetRegisterContext() override;
 
-    virtual lldb::RegisterContextSP
-    CreateRegisterContextForFrame (lldb_private::StackFrame *frame);
+    lldb::RegisterContextSP
+    CreateRegisterContextForFrame(lldb_private::StackFrame *frame) override;
 
-    virtual bool
-    CalculateStopInfo ();
+    bool
+    CalculateStopInfo() override;
 
-    virtual const char *
-    GetInfo ()
+    const char *
+    GetInfo() override
     {
         if (m_backing_thread_sp)
             m_backing_thread_sp->GetInfo();
-        return NULL;
+        return nullptr;
     }
 
-    virtual const char *
-    GetName ()
+    const char *
+    GetName() override
     {
         if (!m_name.empty())
             return m_name.c_str();
         if (m_backing_thread_sp)
             m_backing_thread_sp->GetName();
-        return NULL;
+        return nullptr;
     }
     
-    virtual const char *
-    GetQueueName ()
+    const char *
+    GetQueueName() override
     {
         if (!m_queue.empty())
             return m_queue.c_str();
         if (m_backing_thread_sp)
             m_backing_thread_sp->GetQueueName();
-        return NULL;
+        return nullptr;
     }
 
-    virtual void
-    WillResume (lldb::StateType resume_state);
+    void
+    WillResume(lldb::StateType resume_state) override;
 
-    virtual void
-    DidResume ()
+    void
+    DidResume() override
     {
         if (m_backing_thread_sp)
             m_backing_thread_sp->DidResume();
     }
     
-    virtual lldb::user_id_t
-    GetProtocolID () const
+    lldb::user_id_t
+    GetProtocolID() const override
     {
         if (m_backing_thread_sp)
             return m_backing_thread_sp->GetProtocolID();
         return Thread::GetProtocolID();
     }
 
-    virtual void
-    RefreshStateAfterStop();
+    void
+    RefreshStateAfterStop() override;
     
     lldb::ValueObjectSP &
     GetValueObject ()
@@ -97,41 +98,36 @@ public:
         return m_thread_info_valobj_sp;
     }
     
-    virtual void
-    ClearStackFrames ();
+    void
+    ClearStackFrames() override;
 
-    virtual void
-    ClearBackingThread ()
+    void
+    ClearBackingThread() override
     {
         m_backing_thread_sp.reset();
     }
 
-    virtual bool
-    SetBackingThread (const lldb::ThreadSP &thread_sp)
+    bool
+    SetBackingThread(const lldb::ThreadSP &thread_sp) override
     {
         //printf ("Thread 0x%llx is being backed by thread 0x%llx\n", GetID(), thread_sp->GetID());
         m_backing_thread_sp = thread_sp;
         return (bool)thread_sp;
     }
     
-    virtual lldb::ThreadSP
-    GetBackingThread () const
+    lldb::ThreadSP
+    GetBackingThread() const override
     {
         return m_backing_thread_sp;
     }
 
 protected:
-    
-    virtual bool
-    IsOperatingSystemPluginThread () const
+    bool
+    IsOperatingSystemPluginThread() const override
     {
         return true;
     }
     
-
-    //------------------------------------------------------------------
-    // For ThreadMemory and subclasses
-    //------------------------------------------------------------------
     // If this memory thread is actually represented by a thread from the
     // lldb_private::Process subclass, then fill in the thread here and
     // all APIs will be routed through this thread object. If m_backing_thread_sp
@@ -142,11 +138,9 @@ protected:
     std::string m_name;
     std::string m_queue;
     lldb::addr_t m_register_data_addr;
+
 private:
-    //------------------------------------------------------------------
-    // For ThreadMemory only
-    //------------------------------------------------------------------
     DISALLOW_COPY_AND_ASSIGN (ThreadMemory);
 };
 
-#endif  // liblldb_ThreadMemory_h_
+#endif // liblldb_ThreadMemory_h_
diff --git a/source/Plugins/Process/Utility/UnwindLLDB.cpp b/source/Plugins/Process/Utility/UnwindLLDB.cpp
index 1cdae9011673b..9be09c478a0ee 100644
--- a/source/Plugins/Process/Utility/UnwindLLDB.cpp
+++ b/source/Plugins/Process/Utility/UnwindLLDB.cpp
@@ -86,6 +86,9 @@ UnwindLLDB::AddFirstFrame ()
     if (m_frames.size() > 0)
         return true;
         
+    ProcessSP process_sp (m_thread.GetProcess());
+    ABI *abi = process_sp ? process_sp->GetABI().get() : NULL;
+
     // First, set up the 0th (initial) frame
     CursorSP first_cursor_sp(new Cursor ());
     RegisterContextLLDBSP reg_ctx_sp (new RegisterContextLLDB (m_thread, 
@@ -108,6 +111,10 @@ UnwindLLDB::AddFirstFrame ()
     // cursor own it in its shared pointer
     first_cursor_sp->reg_ctx_lldb_sp = reg_ctx_sp;
     m_frames.push_back (first_cursor_sp);
+
+    // Update the Full Unwind Plan for this frame if not valid
+    UpdateUnwindPlanForFirstFrameIfInvalid(abi);
+
     return true;
 
 unwind_done:
@@ -161,7 +168,14 @@ UnwindLLDB::GetOneMoreFrame (ABI* abi)
         // If the RegisterContextLLDB has a fallback UnwindPlan, it will switch to that and return
         // true.  Subsequent calls to TryFallbackUnwindPlan() will return false.
         if (prev_frame->reg_ctx_lldb_sp->TryFallbackUnwindPlan())
+        {
+            // TryFallbackUnwindPlan for prev_frame succeeded and updated reg_ctx_lldb_sp field of
+            // prev_frame. However, cfa field of prev_frame still needs to be updated. Hence updating it.
+            if ( !(prev_frame->reg_ctx_lldb_sp->GetCFA(prev_frame->cfa)))
+                return nullptr;
+
             return GetOneMoreFrame (abi);
+        }
 
         if (log)
             log->Printf ("%*sFrame %d did not get a RegisterContext, stopping.",
@@ -175,7 +189,14 @@ UnwindLLDB::GetOneMoreFrame (ABI* abi)
         // See if the regctx below this on the stack has a fallback unwind plan it can use.
         // Subsequent calls to TryFallbackUnwindPlan() will return false.
         if (prev_frame->reg_ctx_lldb_sp->TryFallbackUnwindPlan())
+        {
+            // TryFallbackUnwindPlan for prev_frame succeeded and updated reg_ctx_lldb_sp field of
+            // prev_frame. However, cfa field of prev_frame still needs to be updated. Hence updating it.
+            if ( !(prev_frame->reg_ctx_lldb_sp->GetCFA(prev_frame->cfa)))
+                return nullptr;
+
             return GetOneMoreFrame (abi);
+        }
 
         if (log)
             log->Printf("%*sFrame %d invalid RegisterContext for this frame, stopping stack walk", 
@@ -187,7 +208,14 @@ UnwindLLDB::GetOneMoreFrame (ABI* abi)
         // If the RegisterContextLLDB has a fallback UnwindPlan, it will switch to that and return
         // true.  Subsequent calls to TryFallbackUnwindPlan() will return false.
         if (prev_frame->reg_ctx_lldb_sp->TryFallbackUnwindPlan())
+        {
+            // TryFallbackUnwindPlan for prev_frame succeeded and updated reg_ctx_lldb_sp field of
+            // prev_frame. However, cfa field of prev_frame still needs to be updated. Hence updating it.
+            if ( !(prev_frame->reg_ctx_lldb_sp->GetCFA(prev_frame->cfa)))
+                return nullptr;
+
             return GetOneMoreFrame (abi);
+        }
 
         if (log)
             log->Printf("%*sFrame %d did not get CFA for this frame, stopping stack walk",
@@ -212,7 +240,14 @@ UnwindLLDB::GetOneMoreFrame (ABI* abi)
                 || abi->CallFrameAddressIsValid(cursor_sp->cfa) == false)
             {
                 if (prev_frame->reg_ctx_lldb_sp->TryFallbackUnwindPlan())
+                {
+                    // TryFallbackUnwindPlan for prev_frame succeeded and updated reg_ctx_lldb_sp field of
+                    // prev_frame. However, cfa field of prev_frame still needs to be updated. Hence updating it.
+                    if ( !(prev_frame->reg_ctx_lldb_sp->GetCFA(prev_frame->cfa)))
+                        return nullptr;
+
                     return GetOneMoreFrame (abi);
+                }
 
                 if (log)
                     log->Printf("%*sFrame %d did not get a valid CFA for this frame, stopping stack walk",
@@ -232,7 +267,14 @@ UnwindLLDB::GetOneMoreFrame (ABI* abi)
         // If the RegisterContextLLDB has a fallback UnwindPlan, it will switch to that and return
         // true.  Subsequent calls to TryFallbackUnwindPlan() will return false.
         if (prev_frame->reg_ctx_lldb_sp->TryFallbackUnwindPlan())
+        {
+            // TryFallbackUnwindPlan for prev_frame succeeded and updated reg_ctx_lldb_sp field of
+            // prev_frame. However, cfa field of prev_frame still needs to be updated. Hence updating it.
+            if ( !(prev_frame->reg_ctx_lldb_sp->GetCFA(prev_frame->cfa)))
+                return nullptr;
+
             return GetOneMoreFrame (abi);
+        }
 
         if (log)
             log->Printf("%*sFrame %d did not get PC for this frame, stopping stack walk",
@@ -244,7 +286,14 @@ UnwindLLDB::GetOneMoreFrame (ABI* abi)
         // If the RegisterContextLLDB has a fallback UnwindPlan, it will switch to that and return
         // true.  Subsequent calls to TryFallbackUnwindPlan() will return false.
         if (prev_frame->reg_ctx_lldb_sp->TryFallbackUnwindPlan())
+        {
+            // TryFallbackUnwindPlan for prev_frame succeeded and updated reg_ctx_lldb_sp field of
+            // prev_frame. However, cfa field of prev_frame still needs to be updated. Hence updating it.
+            if ( !(prev_frame->reg_ctx_lldb_sp->GetCFA(prev_frame->cfa)))
+                return nullptr;
+
             return GetOneMoreFrame (abi);
+        }
 
         if (log)
             log->Printf("%*sFrame %d did not get a valid PC, stopping stack walk",
@@ -263,6 +312,33 @@ UnwindLLDB::GetOneMoreFrame (ABI* abi)
     return cursor_sp;
 }
 
+void
+UnwindLLDB::UpdateUnwindPlanForFirstFrameIfInvalid (ABI *abi)
+{
+    // This function is called for First Frame only.
+    assert (m_frames.size() == 1 && "No. of cursor frames are not 1");
+
+    bool old_m_unwind_complete = m_unwind_complete;
+    CursorSP old_m_candidate_frame = m_candidate_frame;
+
+    // Try to unwind 2 more frames using the Unwinder. It uses Full UnwindPlan
+    // and if Full UnwindPlan fails, then uses FallBack UnwindPlan. Also
+    // update the cfa of Frame 0 (if required).
+    AddOneMoreFrame(abi);
+
+    // Remove all the frames added by above function as the purpose of
+    // using above function was just to check whether Unwinder of Frame 0
+    // works or not.
+    for(uint32_t i=1; i<m_frames.size(); i++)
+        m_frames.pop_back();
+
+    // Restore status after calling AddOneMoreFrame
+    m_unwind_complete = old_m_unwind_complete;
+    m_candidate_frame = old_m_candidate_frame;
+    return;
+}
+
+
 bool
 UnwindLLDB::AddOneMoreFrame (ABI *abi)
 {
@@ -321,9 +397,17 @@ UnwindLLDB::AddOneMoreFrame (ABI *abi)
     m_frames.push_back(new_frame_v2);
     m_candidate_frame = GetOneMoreFrame(abi);
     if (m_candidate_frame)
+    {
+        // If control reached here then TryFallbackUnwindPlan had succeeded for Cursor::m_frames[m_frames.size() - 2].
+        // It also succeeded to Unwind next 2 frames i.e. m_frames[m_frames.size() - 1] and a frame after that.
+        // For Cursor::m_frames[m_frames.size() - 2], reg_ctx_lldb_sp field was already updated during TryFallbackUnwindPlan
+        // call above. However, cfa field still needs to be updated. Hence updating it here and then returning.
+        if ( !(m_frames[m_frames.size() - 2]->reg_ctx_lldb_sp->GetCFA(m_frames[m_frames.size() - 2]->cfa)))
+            return false;
         return true;
+    }
 
-    // The new frame isn't helped in unwinding. Fall back to the original one as the default unwind
+    // The new frame hasn't helped in unwinding. Fall back to the original one as the default unwind
     // plan is usually more reliable then the fallback one.
     m_frames.pop_back();
     m_frames.push_back(new_frame);
diff --git a/source/Plugins/Process/Utility/UnwindLLDB.h b/source/Plugins/Process/Utility/UnwindLLDB.h
index ce897cd82423c..d3c07078759be 100644
--- a/source/Plugins/Process/Utility/UnwindLLDB.h
+++ b/source/Plugins/Process/Utility/UnwindLLDB.h
@@ -10,8 +10,12 @@
 #ifndef lldb_UnwindLLDB_h_
 #define lldb_UnwindLLDB_h_
 
+// C Includes
+// C++ Includes
 #include <vector>
 
+// Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-public.h"
 #include "lldb/Core/ConstString.h"
 #include "lldb/Symbol/FuncUnwinders.h"
@@ -27,9 +31,8 @@ class UnwindLLDB : public lldb_private::Unwind
 {
 public: 
     UnwindLLDB (lldb_private::Thread &thread);
-    
-    virtual
-    ~UnwindLLDB() { }
+
+    ~UnwindLLDB() override = default;
 
     enum RegisterSearchResult
     {
@@ -62,23 +65,23 @@ protected:
     };
 
     void
-    DoClear()
+    DoClear() override
     {
         m_frames.clear();
         m_candidate_frame.reset();
         m_unwind_complete = false;
     }
 
-    virtual uint32_t
-    DoGetFrameCount();
+    uint32_t
+    DoGetFrameCount() override;
 
     bool
-    DoGetFrameInfoAtIndex (uint32_t frame_idx,
-                         lldb::addr_t& cfa, 
-                         lldb::addr_t& start_pc);
+    DoGetFrameInfoAtIndex(uint32_t frame_idx,
+                          lldb::addr_t& cfa,
+                          lldb::addr_t& start_pc) override;
     
     lldb::RegisterContextSP
-    DoCreateRegisterContextForFrame (lldb_private::StackFrame *frame);
+    DoCreateRegisterContextForFrame(lldb_private::StackFrame *frame) override;
 
     typedef std::shared_ptr<RegisterContextLLDB> RegisterContextLLDBSP;
 
@@ -112,7 +115,6 @@ protected:
     }
 
 private:
-
     struct Cursor
     {
         lldb::addr_t start_pc;  // The start address of the function/symbol for this frame - current pc if unknown
@@ -134,6 +136,15 @@ private:
  
     std::vector<ConstString> m_user_supplied_trap_handler_functions;
 
+    //-----------------------------------------------------------------
+    // Check if Full UnwindPlan of First frame is valid or not.
+    // If not then try Fallback UnwindPlan of the frame. If Fallback
+    // UnwindPlan succeeds then update the Full UnwindPlan with the
+    // Fallback UnwindPlan.
+    //-----------------------------------------------------------------
+    void
+    UpdateUnwindPlanForFirstFrameIfInvalid (ABI* abi);
+
     CursorSP
     GetOneMoreFrame (ABI* abi);
 
@@ -149,6 +160,6 @@ private:
     DISALLOW_COPY_AND_ASSIGN (UnwindLLDB);
 };
 
-}   // namespace lldb_private
+} // namespace lldb_private
 
-#endif  // lldb_UnwindLLDB_h_
+#endif // lldb_UnwindLLDB_h_
diff --git a/source/Plugins/Process/Utility/UnwindMacOSXFrameBackchain.h b/source/Plugins/Process/Utility/UnwindMacOSXFrameBackchain.h
index 2695376fd6e07..f195514ed1bab 100644
--- a/source/Plugins/Process/Utility/UnwindMacOSXFrameBackchain.h
+++ b/source/Plugins/Process/Utility/UnwindMacOSXFrameBackchain.h
@@ -15,7 +15,6 @@
 #include <vector>
 
 // Other libraries and framework includes
-
 // Project includes
 #include "lldb/lldb-private.h"
 #include "lldb/Target/Unwind.h"
@@ -24,29 +23,26 @@ class UnwindMacOSXFrameBackchain : public lldb_private::Unwind
 {
 public: 
     UnwindMacOSXFrameBackchain (lldb_private::Thread &thread);
-    
-    virtual
-    ~UnwindMacOSXFrameBackchain()
-    {
-    }
-    
+
+    ~UnwindMacOSXFrameBackchain() override = default;
+
 protected:
-    virtual void
-    DoClear()
+    void
+    DoClear() override
     {
         m_cursors.clear();
     }
 
-    virtual uint32_t
-    DoGetFrameCount();
+    uint32_t
+    DoGetFrameCount() override;
 
     bool
-    DoGetFrameInfoAtIndex (uint32_t frame_idx,
-                         lldb::addr_t& cfa, 
-                         lldb::addr_t& pc);
+    DoGetFrameInfoAtIndex(uint32_t frame_idx,
+                          lldb::addr_t& cfa,
+                          lldb::addr_t& pc) override;
     
     lldb::RegisterContextSP
-    DoCreateRegisterContextForFrame (lldb_private::StackFrame *frame);
+    DoCreateRegisterContextForFrame(lldb_private::StackFrame *frame) override;
 
     friend class RegisterContextMacOSXFrameBackchain;
 
@@ -71,4 +67,4 @@ private:
     DISALLOW_COPY_AND_ASSIGN (UnwindMacOSXFrameBackchain);
 };
 
-#endif  // lldb_UnwindMacOSXFrameBackchain_h_
+#endif // lldb_UnwindMacOSXFrameBackchain_h_
diff --git a/source/Plugins/Process/Utility/lldb-arm-register-enums.h b/source/Plugins/Process/Utility/lldb-arm-register-enums.h
index a617f6550f65d..4d82c10a78eac 100644
--- a/source/Plugins/Process/Utility/lldb-arm-register-enums.h
+++ b/source/Plugins/Process/Utility/lldb-arm-register-enums.h
@@ -74,7 +74,55 @@ namespace lldb_private
         fpu_s30_arm,
         fpu_s31_arm,
         fpu_fpscr_arm,
-        k_last_fpr_arm = fpu_fpscr_arm,
+        fpu_d0_arm,
+        fpu_d1_arm,
+        fpu_d2_arm,
+        fpu_d3_arm,
+        fpu_d4_arm,
+        fpu_d5_arm,
+        fpu_d6_arm,
+        fpu_d7_arm,
+        fpu_d8_arm,
+        fpu_d9_arm,
+        fpu_d10_arm,
+        fpu_d11_arm,
+        fpu_d12_arm,
+        fpu_d13_arm,
+        fpu_d14_arm,
+        fpu_d15_arm,
+        fpu_d16_arm,
+        fpu_d17_arm,
+        fpu_d18_arm,
+        fpu_d19_arm,
+        fpu_d20_arm,
+        fpu_d21_arm,
+        fpu_d22_arm,
+        fpu_d23_arm,
+        fpu_d24_arm,
+        fpu_d25_arm,
+        fpu_d26_arm,
+        fpu_d27_arm,
+        fpu_d28_arm,
+        fpu_d29_arm,
+        fpu_d30_arm,
+        fpu_d31_arm,
+        fpu_q0_arm,
+        fpu_q1_arm,
+        fpu_q2_arm,
+        fpu_q3_arm,
+        fpu_q4_arm,
+        fpu_q5_arm,
+        fpu_q6_arm,
+        fpu_q7_arm,
+        fpu_q8_arm,
+        fpu_q9_arm,
+        fpu_q10_arm,
+        fpu_q11_arm,
+        fpu_q12_arm,
+        fpu_q13_arm,
+        fpu_q14_arm,
+        fpu_q15_arm,
+        k_last_fpr_arm = fpu_q15_arm,
         exc_exception_arm,
         exc_fsr_arm,
         exc_far_arm,
diff --git a/source/Plugins/Process/elf-core/ProcessElfCore.cpp b/source/Plugins/Process/elf-core/ProcessElfCore.cpp
index bf5cad8e39c51..5b5d98a86d5e2 100644
--- a/source/Plugins/Process/elf-core/ProcessElfCore.cpp
+++ b/source/Plugins/Process/elf-core/ProcessElfCore.cpp
@@ -57,7 +57,7 @@ ProcessElfCore::Terminate()
 
 
 lldb::ProcessSP
-ProcessElfCore::CreateInstance (Target &target, Listener &listener, const FileSpec *crash_file)
+ProcessElfCore::CreateInstance (lldb::TargetSP target_sp, Listener &listener, const FileSpec *crash_file)
 {
     lldb::ProcessSP process_sp;
     if (crash_file)
@@ -75,7 +75,7 @@ ProcessElfCore::CreateInstance (Target &target, Listener &listener, const FileSp
             if (elf_header.Parse(data, &data_offset))
             {
                 if (elf_header.e_type == llvm::ELF::ET_CORE)
-                    process_sp.reset(new ProcessElfCore (target, listener, *crash_file));
+                    process_sp.reset(new ProcessElfCore (target_sp, listener, *crash_file));
             }
         }
     }
@@ -83,12 +83,12 @@ ProcessElfCore::CreateInstance (Target &target, Listener &listener, const FileSp
 }
 
 bool
-ProcessElfCore::CanDebug(Target &target, bool plugin_specified_by_name)
+ProcessElfCore::CanDebug(lldb::TargetSP target_sp, bool plugin_specified_by_name)
 {
     // For now we are just making sure the file exists for a given module
     if (!m_core_module_sp && m_core_file.Exists())
     {
-        ModuleSpec core_module_spec(m_core_file, target.GetArchitecture());
+        ModuleSpec core_module_spec(m_core_file, target_sp->GetArchitecture());
         Error error (ModuleList::GetSharedModule (core_module_spec, m_core_module_sp,
                                                   NULL, NULL, NULL));
         if (m_core_module_sp)
@@ -104,9 +104,9 @@ ProcessElfCore::CanDebug(Target &target, bool plugin_specified_by_name)
 //----------------------------------------------------------------------
 // ProcessElfCore constructor
 //----------------------------------------------------------------------
-ProcessElfCore::ProcessElfCore(Target& target, Listener &listener,
+ProcessElfCore::ProcessElfCore(lldb::TargetSP target_sp, Listener &listener,
                                const FileSpec &core_file) :
-    Process (target, listener),
+    Process (target_sp, listener),
     m_core_module_sp (),
     m_core_file (core_file),
     m_dyld_plugin_name (),
@@ -233,10 +233,29 @@ ProcessElfCore::DoLoadCore ()
     // it to match the core file which is always single arch.
     ArchSpec arch (m_core_module_sp->GetArchitecture());
     if (arch.IsValid())
-        m_target.SetArchitecture(arch);
+        GetTarget().SetArchitecture(arch);
 
     SetUnixSignals(UnixSignals::Create(GetArchitecture()));
 
+    // Core files are useless without the main executable. See if we can locate the main
+    // executable using data we found in the core file notes.
+    lldb::ModuleSP exe_module_sp = GetTarget().GetExecutableModule();
+    if (!exe_module_sp)
+    {
+        // The first entry in the NT_FILE might be our executable
+        if (!m_nt_file_entries.empty())
+        {
+            ModuleSpec exe_module_spec;
+            exe_module_spec.GetArchitecture() = arch;
+            exe_module_spec.GetFileSpec().SetFile(m_nt_file_entries[0].path.GetCString(), false);
+            if (exe_module_spec.GetFileSpec())
+            {
+                exe_module_sp = GetTarget().GetSharedModule(exe_module_spec);
+                if (exe_module_sp)
+                    GetTarget().SetExecutableModule(exe_module_sp, false);
+            }
+        }
+    }
     return error;
 }
 
@@ -258,7 +277,7 @@ ProcessElfCore::UpdateThreadList (ThreadList &old_thread_list, ThreadList &new_t
     for (lldb::tid_t tid = 0; tid < num_threads; ++tid)
     {
         const ThreadData &td = m_thread_data[tid];
-        lldb::ThreadSP thread_sp(new ThreadElfCore (*this, tid, td));
+        lldb::ThreadSP thread_sp(new ThreadElfCore (*this, td));
         new_thread_list.AddThread (thread_sp);
     }
     return new_thread_list.GetSize(false) > 0;
@@ -352,8 +371,7 @@ ProcessElfCore::Clear()
     m_thread_list.Clear();
     m_os = llvm::Triple::UnknownOS;
 
-    static const auto s_default_unix_signals_sp = std::make_shared<UnixSignals>();
-    SetUnixSignals(s_default_unix_signals_sp);
+    SetUnixSignals(std::make_shared<UnixSignals>());
 }
 
 void
@@ -371,12 +389,11 @@ ProcessElfCore::Initialize()
 lldb::addr_t
 ProcessElfCore::GetImageInfoAddress()
 {
-    Target *target = &GetTarget();
-    ObjectFile *obj_file = target->GetExecutableModule()->GetObjectFile();
-    Address addr = obj_file->GetImageInfoAddress(target);
+    ObjectFile *obj_file = GetTarget().GetExecutableModule()->GetObjectFile();
+    Address addr = obj_file->GetImageInfoAddress(&GetTarget());
 
     if (addr.IsValid())
-        return addr.GetLoadAddress(target);
+        return addr.GetLoadAddress(&GetTarget());
     return LLDB_INVALID_ADDRESS;
 }
 
@@ -387,7 +404,8 @@ enum {
     NT_PRPSINFO,
     NT_TASKSTRUCT,
     NT_PLATFORM,
-    NT_AUXV
+    NT_AUXV,
+    NT_FILE = 0x46494c45
 };
 
 namespace FREEBSD {
@@ -429,7 +447,7 @@ ParseFreeBSDPrStatus(ThreadData &thread_data, DataExtractor &data,
         offset += 16;
 
     thread_data.signo = data.GetU32(&offset); // pr_cursig
-    offset += 4;        // pr_pid
+    thread_data.tid = data.GetU32(&offset); // pr_pid
     if (lp64)
         offset += 4;
 
@@ -503,6 +521,7 @@ ProcessElfCore::ParseThreadContextsFromNoteSegment(const elf::ELFProgramHeader *
 
         // Store the NOTE information in the current thread
         DataExtractor note_data (segment_data, note_start, note_size);
+        note_data.SetAddressByteSize(m_core_module_sp->GetArchitecture().GetAddressByteSize());
         if (note.n_name == "FreeBSD")
         {
             m_os = llvm::Triple::FreeBSD;
@@ -532,7 +551,7 @@ ProcessElfCore::ParseThreadContextsFromNoteSegment(const elf::ELFProgramHeader *
                     break;
             }
         }
-        else
+        else if (note.n_name == "CORE")
         {
             switch (note.n_type)
             {
@@ -543,6 +562,8 @@ ProcessElfCore::ParseThreadContextsFromNoteSegment(const elf::ELFProgramHeader *
                     header_size = ELFLinuxPrStatus::GetSize(arch);
                     len = note_data.GetByteSize() - header_size;
                     thread_data->gpregset = DataExtractor(note_data, header_size, len);
+                    // FIXME: Obtain actual tid on Linux
+                    thread_data->tid = m_thread_data.size();
                     break;
                 case NT_FPREGSET:
                     thread_data->fpregset = note_data;
@@ -555,6 +576,28 @@ ProcessElfCore::ParseThreadContextsFromNoteSegment(const elf::ELFProgramHeader *
                 case NT_AUXV:
                     m_auxv = DataExtractor(note_data);
                     break;
+                case NT_FILE:
+                    {
+                        m_nt_file_entries.clear();
+                        lldb::offset_t offset = 0;
+                        const uint64_t count = note_data.GetAddress(&offset);
+                        note_data.GetAddress(&offset); // Skip page size
+                        for (uint64_t i = 0; i<count; ++i)
+                        {
+                            NT_FILE_Entry entry;
+                            entry.start = note_data.GetAddress(&offset);
+                            entry.end = note_data.GetAddress(&offset);
+                            entry.file_ofs = note_data.GetAddress(&offset);
+                            m_nt_file_entries.push_back(entry);
+                        }
+                        for (uint64_t i = 0; i<count; ++i)
+                        {
+                            const char *path = note_data.GetCStr(&offset);
+                            if (path && path[0])
+                                m_nt_file_entries[i].path.SetCString(path);
+                        }
+                    }
+                    break;
                 default:
                     break;
             }
diff --git a/source/Plugins/Process/elf-core/ProcessElfCore.h b/source/Plugins/Process/elf-core/ProcessElfCore.h
index 775d9e94dd8e9..12ce04c5ce38b 100644
--- a/source/Plugins/Process/elf-core/ProcessElfCore.h
+++ b/source/Plugins/Process/elf-core/ProcessElfCore.h
@@ -1,4 +1,4 @@
-//===-- ProcessElfCore.h ---------------------------------------*- C++ -*-===//
+//===-- ProcessElfCore.h ----------------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -10,18 +10,20 @@
 //  2) The ELF file's PT_NOTE and PT_LOAD segments describes the program's
 //     address space and thread contexts.
 //  3) PT_NOTE segment contains note entries which describes a thread context.
-//  4) PT_LOAD segment describes a valid contigous range of process address
+//  4) PT_LOAD segment describes a valid contiguous range of process address
 //     space.
 //===----------------------------------------------------------------------===//
 
 #ifndef liblldb_ProcessElfCore_h_
 #define liblldb_ProcessElfCore_h_
 
+// C Includes
 // C++ Includes
 #include <list>
 #include <vector>
 
 // Other libraries and framework includes
+// Project includes
 #include "lldb/Core/ConstString.h"
 #include "lldb/Core/Error.h"
 #include "lldb/Target/Process.h"
@@ -37,7 +39,7 @@ public:
     // Constructors and Destructors
     //------------------------------------------------------------------
     static lldb::ProcessSP
-    CreateInstance (lldb_private::Target& target,
+    CreateInstance (lldb::TargetSP target_sp,
                     lldb_private::Listener &listener,
                     const lldb_private::FileSpec *crash_file_path);
 
@@ -56,17 +58,16 @@ public:
     //------------------------------------------------------------------
     // Constructors and Destructors
     //------------------------------------------------------------------
-    ProcessElfCore(lldb_private::Target& target,
-                    lldb_private::Listener &listener,
-                    const lldb_private::FileSpec &core_file);
+    ProcessElfCore(lldb::TargetSP target_sp,
+                   lldb_private::Listener &listener,
+                   const lldb_private::FileSpec &core_file);
 
-    virtual
-    ~ProcessElfCore();
+    ~ProcessElfCore() override;
 
     //------------------------------------------------------------------
     // Check if a given Process
     //------------------------------------------------------------------
-    bool CanDebug(lldb_private::Target &target, bool plugin_specified_by_name) override;
+    bool CanDebug(lldb::TargetSP target_sp, bool plugin_specified_by_name) override;
 
     //------------------------------------------------------------------
     // Creating a new process, or attaching to an existing one
@@ -118,6 +119,14 @@ protected:
                           lldb_private::ThreadList &new_thread_list) override;
 
 private:
+    struct NT_FILE_Entry
+    {
+        lldb::addr_t start;
+        lldb::addr_t end;
+        lldb::addr_t file_ofs;
+        lldb_private::ConstString path;
+    };
+
     //------------------------------------------------------------------
     // For ProcessElfCore only
     //------------------------------------------------------------------
@@ -143,6 +152,9 @@ private:
     // Address ranges found in the core
     VMRangeToFileOffset m_core_aranges;
 
+    // NT_FILE entries found from the NOTE segment
+    std::vector<NT_FILE_Entry> m_nt_file_entries;
+
     // Parse thread(s) data structures(prstatus, prpsinfo) from given NOTE segment
     void
     ParseThreadContextsFromNoteSegment (const elf::ELFProgramHeader *segment_header,
@@ -157,4 +169,4 @@ private:
     AddAddressRangeFromLoadSegment(const elf::ELFProgramHeader *header);
 };
 
-#endif  // liblldb_ProcessElffCore_h_
+#endif // liblldb_ProcessElfCore_h_
diff --git a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm.cpp b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm.cpp
index f046c112d8b64..6778aeaaac007 100644
--- a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm.cpp
+++ b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm.cpp
@@ -10,7 +10,6 @@
 #include "lldb/Core/DataExtractor.h"
 #include "lldb/Core/RegisterValue.h"
 #include "lldb/Target/Thread.h"
-#include "Plugins/Process/Utility/RegisterContextPOSIX.h"
 #include "RegisterContextPOSIXCore_arm.h"
 
 using namespace lldb_private;
diff --git a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm.h b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm.h
index 73e2ef7c3a93b..0e74897b5b5c0 100644
--- a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm.h
+++ b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm.h
@@ -1,15 +1,19 @@
-//===-- RegisterContextCorePOSIX_arm.h -----------------------*- C++ -*-===//
+//===-- RegisterContextCorePOSIX_arm.h --------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
-//===---------------------------------------------------------------------===//
+//===----------------------------------------------------------------------===//
 
-#ifndef liblldb_RegisterContextCorePOSIX_arm_H_
-#define liblldb_RegisterContextCorePOSIX_arm_H_
+#ifndef liblldb_RegisterContextCorePOSIX_arm_h_
+#define liblldb_RegisterContextCorePOSIX_arm_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Core/DataBufferHeap.h"
 #include "Plugins/Process/Utility/RegisterContextPOSIX_arm.h"
 
@@ -22,39 +26,41 @@ public:
                                      const lldb_private::DataExtractor &gpregset,
                                      const lldb_private::DataExtractor &fpregset);
 
-    ~RegisterContextCorePOSIX_arm();
+    ~RegisterContextCorePOSIX_arm() override;
 
-    virtual bool
-    ReadRegister(const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value);
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &value) override;
 
-    virtual bool
-    WriteRegister(const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value);
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &value) override;
 
     bool
-    ReadAllRegisterValues(lldb::DataBufferSP &data_sp);
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
 
     bool
-    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp);
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
     bool
-    HardwareSingleStep(bool enable);
+    HardwareSingleStep(bool enable) override;
 
 protected:
     bool
-    ReadGPR();
+    ReadGPR() override;
 
     bool
-    ReadFPR();
+    ReadFPR() override;
 
     bool
-    WriteGPR();
+    WriteGPR() override;
 
     bool
-    WriteFPR();
+    WriteFPR() override;
 
 private:
     lldb::DataBufferSP m_gpr_buffer;
     lldb_private::DataExtractor m_gpr;
 };
 
-#endif // #ifndef liblldb_RegisterContextCorePOSIX_arm_H_
+#endif // liblldb_RegisterContextCorePOSIX_arm_h_
diff --git a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm64.cpp b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm64.cpp
index 53c0c83c264a2..7cfdd415ad5b0 100644
--- a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm64.cpp
+++ b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm64.cpp
@@ -10,7 +10,6 @@
 #include "lldb/Core/DataExtractor.h"
 #include "lldb/Core/RegisterValue.h"
 #include "lldb/Target/Thread.h"
-#include "Plugins/Process/Utility/RegisterContextPOSIX.h"
 #include "RegisterContextPOSIXCore_arm64.h"
 
 using namespace lldb_private;
diff --git a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm64.h b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm64.h
index 2e1d6b4f9ca83..9b05edb1935fd 100644
--- a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm64.h
+++ b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm64.h
@@ -1,15 +1,19 @@
-//===-- RegisterContextCorePOSIX_arm64.h -----------------------*- C++ -*-===//
+//===-- RegisterContextCorePOSIX_arm64.h ------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
-//===---------------------------------------------------------------------===//
+//===----------------------------------------------------------------------===//
 
-#ifndef liblldb_RegisterContextCorePOSIX_arm64_H_
-#define liblldb_RegisterContextCorePOSIX_arm64_H_
+#ifndef liblldb_RegisterContextCorePOSIX_arm64_h_
+#define liblldb_RegisterContextCorePOSIX_arm64_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Core/DataBufferHeap.h"
 #include "Plugins/Process/Utility/RegisterContextPOSIX_arm64.h"
 
@@ -22,39 +26,41 @@ public:
                                      const lldb_private::DataExtractor &gpregset,
                                      const lldb_private::DataExtractor &fpregset);
 
-    ~RegisterContextCorePOSIX_arm64();
+    ~RegisterContextCorePOSIX_arm64() override;
 
-    virtual bool
-    ReadRegister(const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value);
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &value) override;
 
-    virtual bool
-    WriteRegister(const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value);
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &value) override;
 
     bool
-    ReadAllRegisterValues(lldb::DataBufferSP &data_sp);
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
 
     bool
-    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp);
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
     bool
-    HardwareSingleStep(bool enable);
+    HardwareSingleStep(bool enable) override;
 
 protected:
     bool
-    ReadGPR();
+    ReadGPR() override;
 
     bool
-    ReadFPR();
+    ReadFPR() override;
 
     bool
-    WriteGPR();
+    WriteGPR() override;
 
     bool
-    WriteFPR();
+    WriteFPR() override;
 
 private:
     lldb::DataBufferSP m_gpr_buffer;
     lldb_private::DataExtractor m_gpr;
 };
 
-#endif // #ifndef liblldb_RegisterContextCorePOSIX_arm64_H_
+#endif // liblldb_RegisterContextCorePOSIX_arm64_h_
diff --git a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_mips64.cpp b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_mips64.cpp
index f0750a0cee18e..9d908e371a326 100644
--- a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_mips64.cpp
+++ b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_mips64.cpp
@@ -10,7 +10,6 @@
 #include "lldb/Core/DataExtractor.h"
 #include "lldb/Core/RegisterValue.h"
 #include "lldb/Target/Thread.h"
-#include "Plugins/Process/Utility/RegisterContextPOSIX.h"
 #include "RegisterContextPOSIXCore_mips64.h"
 
 using namespace lldb_private;
diff --git a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_mips64.h b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_mips64.h
index ca29d4f0febd8..6cbfd504b7dbc 100644
--- a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_mips64.h
+++ b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_mips64.h
@@ -1,15 +1,19 @@
-//===-- RegisterContextCorePOSIX_mips64.h ----------------------*- C++ -*-===//
+//===-- RegisterContextCorePOSIX_mips64.h -----------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
-//===---------------------------------------------------------------------===//
+//===----------------------------------------------------------------------===//
 
-#ifndef liblldb_RegisterContextCorePOSIX_mips64_H_
-#define liblldb_RegisterContextCorePOSIX_mips64_H_
+#ifndef liblldb_RegisterContextCorePOSIX_mips64_h_
+#define liblldb_RegisterContextCorePOSIX_mips64_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Core/DataBufferHeap.h"
 #include "Plugins/Process/Utility/RegisterContextPOSIX_mips64.h"
 
@@ -22,39 +26,41 @@ public:
                                      const lldb_private::DataExtractor &gpregset,
                                      const lldb_private::DataExtractor &fpregset);
 
-    ~RegisterContextCorePOSIX_mips64();
+    ~RegisterContextCorePOSIX_mips64() override;
 
-    virtual bool
-    ReadRegister(const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value);
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &value) override;
 
-    virtual bool
-    WriteRegister(const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value);
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &value) override;
 
     bool
-    ReadAllRegisterValues(lldb::DataBufferSP &data_sp);
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
 
     bool
-    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp);
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
     bool
-    HardwareSingleStep(bool enable);
+    HardwareSingleStep(bool enable) override;
 
 protected:
     bool
-    ReadGPR();
+    ReadGPR() override;
 
     bool
-    ReadFPR();
+    ReadFPR() override;
 
     bool
-    WriteGPR();
+    WriteGPR() override;
 
     bool
-    WriteFPR();
+    WriteFPR() override;
 
 private:
     lldb::DataBufferSP m_gpr_buffer;
     lldb_private::DataExtractor m_gpr;
 };
 
-#endif // #ifndef liblldb_RegisterContextCorePOSIX_mips64_H_
+#endif // liblldb_RegisterContextCorePOSIX_mips64_h_
diff --git a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_powerpc.cpp b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_powerpc.cpp
index d12df21a86646..9d8c97849ff8e 100644
--- a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_powerpc.cpp
+++ b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_powerpc.cpp
@@ -10,7 +10,6 @@
 #include "lldb/Core/DataExtractor.h"
 #include "lldb/Core/RegisterValue.h"
 #include "lldb/Target/Thread.h"
-#include "RegisterContextPOSIX.h"
 #include "RegisterContextPOSIXCore_powerpc.h"
 
 using namespace lldb_private;
diff --git a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_powerpc.h b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_powerpc.h
index a3590601fa7e6..0f587fd1459c1 100644
--- a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_powerpc.h
+++ b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_powerpc.h
@@ -5,11 +5,15 @@
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
-//===---------------------------------------------------------------------===//
+//===----------------------------------------------------------------------===//
 
-#ifndef liblldb_RegisterContextCorePOSIX_powerpc_H_
-#define liblldb_RegisterContextCorePOSIX_powerpc_H_
+#ifndef liblldb_RegisterContextCorePOSIX_powerpc_h_
+#define liblldb_RegisterContextCorePOSIX_powerpc_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Core/DataBufferHeap.h"
 #include "Plugins/Process/Utility/RegisterContextPOSIX_powerpc.h"
 
@@ -23,41 +27,43 @@ public:
                                      const lldb_private::DataExtractor &fpregset,
                                      const lldb_private::DataExtractor &vregset);
 
-    ~RegisterContextCorePOSIX_powerpc();
+    ~RegisterContextCorePOSIX_powerpc() override;
 
-    virtual bool
-    ReadRegister(const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value);
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &value) override;
 
-    virtual bool
-    WriteRegister(const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value);
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &value) override;
 
     bool
-    ReadAllRegisterValues(lldb::DataBufferSP &data_sp);
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
 
     bool
-    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp);
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
     bool
-    HardwareSingleStep(bool enable);
+    HardwareSingleStep(bool enable) override;
 
 protected:
     bool
-    ReadGPR();
+    ReadGPR() override;
 
     bool
-    ReadFPR();
+    ReadFPR() override;
 
     bool
-    ReadVMX();
+    ReadVMX() override;
 
     bool
-    WriteGPR();
+    WriteGPR() override;
 
     bool
-    WriteFPR();
+    WriteFPR() override;
 
     bool
-    WriteVMX();
+    WriteVMX() override;
 
 private:
     lldb::DataBufferSP m_gpr_buffer;
@@ -68,4 +74,4 @@ private:
     lldb_private::DataExtractor m_vec;
 };
 
-#endif // #ifndef liblldb_RegisterContextCorePOSIX_powerpc_H_
+#endif // liblldb_RegisterContextCorePOSIX_powerpc_h_
diff --git a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_x86_64.cpp b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_x86_64.cpp
index 412c7ade82955..926c7aff36035 100644
--- a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_x86_64.cpp
+++ b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_x86_64.cpp
@@ -10,7 +10,6 @@
 #include "lldb/Core/DataExtractor.h"
 #include "lldb/Core/RegisterValue.h"
 #include "lldb/Target/Thread.h"
-#include "Plugins/Process/Utility/RegisterContextPOSIX.h"
 #include "RegisterContextPOSIXCore_x86_64.h"
 
 using namespace lldb_private;
diff --git a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_x86_64.h b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_x86_64.h
index ac0f49c3db52b..60f2ad33b4a5a 100644
--- a/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_x86_64.h
+++ b/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_x86_64.h
@@ -1,15 +1,19 @@
-//===-- RegisterContextCorePOSIX_x86_64.h ----------------------*- C++ -*-===//
+//===-- RegisterContextCorePOSIX_x86_64.h -----------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
-//===---------------------------------------------------------------------===//
+//===----------------------------------------------------------------------===//
 
-#ifndef liblldb_RegisterContextCorePOSIX_x86_64_H_
-#define liblldb_RegisterContextCorePOSIX_x86_64_H_
+#ifndef liblldb_RegisterContextCorePOSIX_x86_64_h_
+#define liblldb_RegisterContextCorePOSIX_x86_64_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "Plugins/Process/Utility/RegisterContextPOSIX_x86.h"
 
 class RegisterContextCorePOSIX_x86_64 :
@@ -21,38 +25,40 @@ public:
                                      const lldb_private::DataExtractor &gpregset,
                                      const lldb_private::DataExtractor &fpregset);
 
-    ~RegisterContextCorePOSIX_x86_64();
+    ~RegisterContextCorePOSIX_x86_64() override;
 
-    virtual bool
-    ReadRegister(const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value);
+    bool
+    ReadRegister(const lldb_private::RegisterInfo *reg_info,
+                 lldb_private::RegisterValue &value) override;
 
-    virtual bool
-    WriteRegister(const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value);
+    bool
+    WriteRegister(const lldb_private::RegisterInfo *reg_info,
+                  const lldb_private::RegisterValue &value) override;
 
     bool
-    ReadAllRegisterValues(lldb::DataBufferSP &data_sp);
+    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
 
     bool
-    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp);
+    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
     bool
-    HardwareSingleStep(bool enable);
+    HardwareSingleStep(bool enable) override;
 
 protected:
     bool
-    ReadGPR();
+    ReadGPR() override;
 
     bool
-    ReadFPR();
+    ReadFPR() override;
 
     bool
-    WriteGPR();
+    WriteGPR() override;
 
     bool
-    WriteFPR();
+    WriteFPR() override;
 
 private:
     uint8_t *m_gpregset;
 };
 
-#endif // #ifndef liblldb_RegisterContextCorePOSIX_x86_64_H_
+#endif // liblldb_RegisterContextCorePOSIX_x86_64_h_
diff --git a/source/Plugins/Process/elf-core/ThreadElfCore.cpp b/source/Plugins/Process/elf-core/ThreadElfCore.cpp
index 2abb6ba5decd9..9cc7829fc3913 100644
--- a/source/Plugins/Process/elf-core/ThreadElfCore.cpp
+++ b/source/Plugins/Process/elf-core/ThreadElfCore.cpp
@@ -37,9 +37,8 @@ using namespace lldb_private;
 //----------------------------------------------------------------------
 // Construct a Thread object with given data
 //----------------------------------------------------------------------
-ThreadElfCore::ThreadElfCore (Process &process, tid_t tid,
-                              const ThreadData &td) :
-    Thread(process, tid),
+ThreadElfCore::ThreadElfCore (Process &process, const ThreadData &td) :
+    Thread(process, td.tid),
     m_thread_name(td.name),
     m_thread_reg_ctx_sp (),
     m_signo(td.signo),
diff --git a/source/Plugins/Process/elf-core/ThreadElfCore.h b/source/Plugins/Process/elf-core/ThreadElfCore.h
index 50502c101daf9..d3a42e0eb54dd 100644
--- a/source/Plugins/Process/elf-core/ThreadElfCore.h
+++ b/source/Plugins/Process/elf-core/ThreadElfCore.h
@@ -1,4 +1,4 @@
-//===-- ThreadElfCore.h ----------------------------------------*- C++ -*-===//
+//===-- ThreadElfCore.h -----------------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -10,8 +10,12 @@
 #ifndef liblldb_ThreadElfCore_h_
 #define liblldb_ThreadElfCore_h_
 
+// C Includes
+// C++ Includes
 #include <string>
 
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Target/Thread.h"
 #include "lldb/Core/DataExtractor.h"
 
@@ -104,7 +108,6 @@ struct ELFLinuxPrPsInfo
                 return 0;
         }
     }
-
 };
 
 struct ThreadData
@@ -112,6 +115,7 @@ struct ThreadData
     lldb_private::DataExtractor gpregset;
     lldb_private::DataExtractor fpregset;
     lldb_private::DataExtractor vregset;
+    lldb::tid_t tid;
     int signo;
     std::string name;
 };
@@ -119,23 +123,21 @@ struct ThreadData
 class ThreadElfCore : public lldb_private::Thread
 {
 public:
-    ThreadElfCore (lldb_private::Process &process, lldb::tid_t tid,
-                   const ThreadData &td);
+    ThreadElfCore (lldb_private::Process &process, const ThreadData &td);
 
-    virtual
-    ~ThreadElfCore ();
+    ~ThreadElfCore() override;
 
-    virtual void
-    RefreshStateAfterStop();
+    void
+    RefreshStateAfterStop() override;
 
-    virtual lldb::RegisterContextSP
-    GetRegisterContext ();
+    lldb::RegisterContextSP
+    GetRegisterContext() override;
 
-    virtual lldb::RegisterContextSP
-    CreateRegisterContextForFrame (lldb_private::StackFrame *frame);
+    lldb::RegisterContextSP
+    CreateRegisterContextForFrame(lldb_private::StackFrame *frame) override;
 
-    virtual void
-    ClearStackFrames ();
+    void
+    ClearStackFrames() override;
 
     static bool
     ThreadIDIsValid (lldb::tid_t thread)
@@ -143,8 +145,8 @@ public:
         return thread != 0;
     }
 
-    virtual const char *
-    GetName ()
+    const char *
+    GetName() override
     {
         if (m_thread_name.empty())
             return NULL;
@@ -152,7 +154,7 @@ public:
     }
 
     void
-    SetName (const char *name)
+    SetName(const char *name) override
     {
         if (name && name[0])
             m_thread_name.assign (name);
@@ -173,8 +175,7 @@ protected:
     lldb_private::DataExtractor m_fpregset_data;
     lldb_private::DataExtractor m_vregset_data;
 
-    virtual bool CalculateStopInfo();
-
+    bool CalculateStopInfo() override;
 };
 
-#endif  // liblldb_ThreadElfCore_h_
+#endif // liblldb_ThreadElfCore_h_
diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp b/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
index 9c263c8c40879..2ea1f206008a7 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
@@ -30,6 +30,7 @@
 #include "lldb/Host/StringConvert.h"
 #include "lldb/Host/ThreadLauncher.h"
 #include "lldb/Host/TimeValue.h"
+#include "lldb/Target/Platform.h"
 #include "lldb/Target/Process.h"
 #include "llvm/ADT/SmallString.h"
 
@@ -574,15 +575,24 @@ GDBRemoteCommunication::DecompressPacket ()
         return true;
     if (m_bytes[1] != 'C' && m_bytes[1] != 'N')
         return true;
-    if (m_bytes[pkt_size - 3] != '#')
+
+    size_t hash_mark_idx = m_bytes.find ('#');
+    if (hash_mark_idx == std::string::npos)
+        return true;
+    if (hash_mark_idx + 2 >= m_bytes.size())
         return true;
-    if (!::isxdigit (m_bytes[pkt_size - 2]) || !::isxdigit (m_bytes[pkt_size - 1]))
+
+    if (!::isxdigit (m_bytes[hash_mark_idx + 1]) || !::isxdigit (m_bytes[hash_mark_idx + 2]))
         return true;
 
-    size_t content_length = pkt_size - 5;   // not counting '$', 'C' | 'N', '#', & the two hex checksum chars
-    size_t content_start = 2;               // The first character of the compressed/not-compressed text of the packet
-    size_t hash_mark_idx = pkt_size - 3;    // The '#' character marking the end of the packet
-    size_t checksum_idx = pkt_size - 2;     // The first character of the two hex checksum characters
+    size_t content_length = pkt_size - 5;    // not counting '$', 'C' | 'N', '#', & the two hex checksum chars
+    size_t content_start = 2;                // The first character of the compressed/not-compressed text of the packet
+    size_t checksum_idx = hash_mark_idx + 1; // The first character of the two hex checksum characters
+
+    // Normally size_of_first_packet == m_bytes.size() but m_bytes may contain multiple packets.
+    // size_of_first_packet is the size of the initial packet which we'll replace with the decompressed
+    // version of, leaving the rest of m_bytes unmodified.
+    size_t size_of_first_packet = hash_mark_idx + 3; 
 
     // Compressed packets ("$C") start with a base10 number which is the size of the uncompressed payload,
     // then a : and then the compressed data.  e.g. $C1024:<binary>#00
@@ -604,7 +614,7 @@ GDBRemoteCommunication::DecompressPacket ()
             decompressed_bufsize = ::strtoul (bufsize_str.c_str(), NULL, 10);
             if (errno != 0 || decompressed_bufsize == ULONG_MAX)
             {
-                m_bytes.erase (0, pkt_size);
+                m_bytes.erase (0, size_of_first_packet);
                 return false;
             }
         }
@@ -633,7 +643,7 @@ GDBRemoteCommunication::DecompressPacket ()
         if (!success)
         {
             SendNack();
-            m_bytes.erase (0, pkt_size);
+            m_bytes.erase (0, size_of_first_packet);
             return false;
         }
         else
@@ -677,7 +687,7 @@ GDBRemoteCommunication::DecompressPacket ()
         decompressed_buffer = (uint8_t *) malloc (decompressed_bufsize + 1);
         if (decompressed_buffer == nullptr)
         {
-            m_bytes.erase (0, pkt_size);
+            m_bytes.erase (0, size_of_first_packet);
             return false;
         }
 
@@ -751,7 +761,7 @@ GDBRemoteCommunication::DecompressPacket ()
     {
         if (decompressed_buffer)
             free (decompressed_buffer);
-        m_bytes.erase (0, pkt_size);
+        m_bytes.erase (0, size_of_first_packet);
         return false;
     }
 
@@ -773,7 +783,7 @@ GDBRemoteCommunication::DecompressPacket ()
         new_packet.push_back ('0');
     }
 
-    m_bytes = new_packet;
+    m_bytes.replace (0, size_of_first_packet, new_packet.data(), new_packet.size());
 
     free (decompressed_buffer);
     return true;
@@ -927,8 +937,10 @@ GDBRemoteCommunication::CheckForPacket (const uint8_t *src, size_t src_len, Stri
                 {
                     for (size_t i=0; !binary && i<total_length; ++i)
                     {
-                        if (isprint(m_bytes[i]) == 0)
+                        if (isprint (m_bytes[i]) == 0 && isspace (m_bytes[i]) == 0)
+                        {
                             binary = true;
+                        }
                     }
                 }
                 if (binary)
@@ -1100,16 +1112,16 @@ GDBRemoteCommunication::ListenThread (lldb::thread_arg_t arg)
 }
 
 Error
-GDBRemoteCommunication::StartDebugserverProcess (const char *hostname,
-                                                 uint16_t in_port,
+GDBRemoteCommunication::StartDebugserverProcess (const char *url,
+                                                 Platform *platform,
                                                  ProcessLaunchInfo &launch_info,
-                                                 uint16_t &out_port)
+                                                 uint16_t *port,
+                                                 const Args& inferior_args)
 {
     Log *log (ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (GDBR_LOG_PROCESS));
     if (log)
-        log->Printf ("GDBRemoteCommunication::%s(hostname=%s, in_port=%" PRIu16 ", out_port=%" PRIu16, __FUNCTION__, hostname ? hostname : "<empty>", in_port, out_port);
+        log->Printf ("GDBRemoteCommunication::%s(url=%s, port=%" PRIu16, __FUNCTION__, url ? url : "<empty>", port ? *port : uint16_t(0));
 
-    out_port = in_port;
     Error error;
     // If we locate debugserver, keep that located version around
     static FileSpec g_debugserver_file_spec;
@@ -1146,11 +1158,20 @@ GDBRemoteCommunication::StartDebugserverProcess (const char *hostname,
             }
             else
             {
-                if (log)
-                    log->Printf ("GDBRemoteCommunication::%s() could not find gdb-remote stub exe '%s'", __FUNCTION__, debugserver_file_spec.GetPath ().c_str ());
-
+                debugserver_file_spec = platform->LocateExecutable(DEBUGSERVER_BASENAME);
+                if (debugserver_file_spec)
+                {
+                    // Platform::LocateExecutable() wouldn't return a path if it doesn't exist
+                    debugserver_exists = true;
+                }
+                else
+                {
+                    if (log)
+                        log->Printf ("GDBRemoteCommunication::%s() could not find gdb-remote stub exe '%s'", __FUNCTION__, debugserver_file_spec.GetPath ().c_str ());
+                }
+                // Don't cache the platform specific GDB server binary as it could change
+                // from platform to platform
                 g_debugserver_file_spec.Clear();
-                debugserver_file_spec.Clear();
             }
         }
     }
@@ -1171,17 +1192,9 @@ GDBRemoteCommunication::StartDebugserverProcess (const char *hostname,
         debugserver_args.AppendArgument("gdbserver");
 #endif
 
-        // If a host and port is supplied then use it
-        char host_and_port[128];
-        if (hostname)
-        {
-            snprintf (host_and_port, sizeof(host_and_port), "%s:%u", hostname, in_port);
-            debugserver_args.AppendArgument(host_and_port);
-        }
-        else
-        {
-            host_and_port[0] = '\0';
-        }
+        // If a url is supplied then use it
+        if (url)
+            debugserver_args.AppendArgument(url);
 
         // use native registers, not the GDB registers
         debugserver_args.AppendArgument("--native-regs");
@@ -1192,30 +1205,41 @@ GDBRemoteCommunication::StartDebugserverProcess (const char *hostname,
         }
 
         llvm::SmallString<PATH_MAX> named_pipe_path;
-        Pipe port_pipe;
-
-        if (host_and_port[0] && in_port == 0)
+        // socket_pipe is used by debug server to communicate back either
+        // TCP port or domain socket name which it listens on.
+        // The second purpose of the pipe to serve as a synchronization point -
+        // once data is written to the pipe, debug server is up and running.
+        Pipe socket_pipe;
+
+        // port is null when debug server should listen on domain socket -
+        // we're not interested in port value but rather waiting for debug server
+        // to become available.
+        if ((port != nullptr && *port == 0) || port == nullptr)
         {
-            // Create a temporary file to get the stdout/stderr and redirect the
-            // output of the command into this file. We will later read this file
-            // if all goes well and fill the data into "command_output_ptr"
-
-            // Binding to port zero, we need to figure out what port it ends up
-            // using using a named pipe...
-            error = port_pipe.CreateWithUniqueName("debugserver-named-pipe", false, named_pipe_path);
-            if (error.Success())
+            if (url)
             {
+                // Create a temporary file to get the stdout/stderr and redirect the
+                // output of the command into this file. We will later read this file
+                // if all goes well and fill the data into "command_output_ptr"
+    
+#if defined(__APPLE__)
+                // Binding to port zero, we need to figure out what port it ends up
+                // using using a named pipe...
+                error = socket_pipe.CreateWithUniqueName("debugserver-named-pipe", false, named_pipe_path);
+                if (error.Fail())
+                {
+                    if (log)
+                        log->Printf("GDBRemoteCommunication::%s() "
+                                "named pipe creation failed: %s",
+                                __FUNCTION__, error.AsCString());
+                    return error;
+                }
                 debugserver_args.AppendArgument("--named-pipe");
                 debugserver_args.AppendArgument(named_pipe_path.c_str());
-            }
-            else
-            {
-                if (log)
-                    log->Printf("GDBRemoteCommunication::%s() "
-                            "named pipe creation failed: %s",
-                            __FUNCTION__, error.AsCString());
-                // let's try an unnamed pipe
-                error = port_pipe.CreateNew(true);
+#else
+                // Binding to port zero, we need to figure out what port it ends up
+                // using using an unnamed pipe...
+                error = socket_pipe.CreateNew(true);
                 if (error.Fail())
                 {
                     if (log)
@@ -1224,42 +1248,43 @@ GDBRemoteCommunication::StartDebugserverProcess (const char *hostname,
                                 __FUNCTION__, error.AsCString());
                     return error;
                 }
-                int write_fd = port_pipe.GetWriteFileDescriptor();
+                int write_fd = socket_pipe.GetWriteFileDescriptor();
                 debugserver_args.AppendArgument("--pipe");
                 debugserver_args.AppendArgument(std::to_string(write_fd).c_str());
-                launch_info.AppendCloseFileAction(port_pipe.GetReadFileDescriptor());
-            }
-        }
-        else
-        {
-            // No host and port given, so lets listen on our end and make the debugserver
-            // connect to us..
-            error = StartListenThread ("127.0.0.1", 0);
-            if (error.Fail())
-            {
-                if (log)
-                    log->Printf ("GDBRemoteCommunication::%s() unable to start listen thread: %s", __FUNCTION__, error.AsCString());
-                return error;
-            }
-
-            ConnectionFileDescriptor *connection = (ConnectionFileDescriptor *)GetConnection ();
-            // Wait for 10 seconds to resolve the bound port
-            out_port = connection->GetListeningPort(10);
-            if (out_port > 0)
-            {
-                char port_cstr[32];
-                snprintf(port_cstr, sizeof(port_cstr), "127.0.0.1:%i", out_port);
-                // Send the host and port down that debugserver and specify an option
-                // so that it connects back to the port we are listening to in this process
-                debugserver_args.AppendArgument("--reverse-connect");
-                debugserver_args.AppendArgument(port_cstr);
+                launch_info.AppendCloseFileAction(socket_pipe.GetReadFileDescriptor());
+#endif
             }
             else
             {
-                error.SetErrorString ("failed to bind to port 0 on 127.0.0.1");
-                if (log)
-                    log->Printf ("GDBRemoteCommunication::%s() failed: %s", __FUNCTION__, error.AsCString());
-                return error;
+                // No host and port given, so lets listen on our end and make the debugserver
+                // connect to us..
+                error = StartListenThread ("127.0.0.1", 0);
+                if (error.Fail())
+                {
+                    if (log)
+                        log->Printf ("GDBRemoteCommunication::%s() unable to start listen thread: %s", __FUNCTION__, error.AsCString());
+                    return error;
+                }
+    
+                ConnectionFileDescriptor *connection = (ConnectionFileDescriptor *)GetConnection ();
+                // Wait for 10 seconds to resolve the bound port
+                *port = connection->GetListeningPort(10);
+                if (*port > 0)
+                {
+                    char port_cstr[32];
+                    snprintf(port_cstr, sizeof(port_cstr), "127.0.0.1:%i", *port);
+                    // Send the host and port down that debugserver and specify an option
+                    // so that it connects back to the port we are listening to in this process
+                    debugserver_args.AppendArgument("--reverse-connect");
+                    debugserver_args.AppendArgument(port_cstr);
+                }
+                else
+                {
+                    error.SetErrorString ("failed to bind to port 0 on 127.0.0.1");
+                    if (log)
+                        log->Printf ("GDBRemoteCommunication::%s() failed: %s", __FUNCTION__, error.AsCString());
+                    return error;
+                }
             }
         }
         
@@ -1304,6 +1329,20 @@ GDBRemoteCommunication::StartDebugserverProcess (const char *hostname,
             }
         } while (has_env_var);
 
+        if (inferior_args.GetArgumentCount() > 0)
+        {
+            debugserver_args.AppendArgument ("--");
+            debugserver_args.AppendArguments (inferior_args);
+        }
+
+        // Copy the current environment to the gdbserver/debugserver instance
+        StringList env;
+        if (Host::GetEnvironment(env))
+        {
+            for (size_t i = 0; i < env.GetSize(); ++i)
+                launch_info.GetEnvironmentEntries().AppendArgument(env[i].c_str());
+        }
+
         // Close STDIN, STDOUT and STDERR.
         launch_info.AppendCloseFileAction (STDIN_FILENO);
         launch_info.AppendCloseFileAction (STDOUT_FILENO);
@@ -1316,11 +1355,12 @@ GDBRemoteCommunication::StartDebugserverProcess (const char *hostname,
         
         error = Host::LaunchProcess(launch_info);
         
-        if (error.Success() && launch_info.GetProcessID() != LLDB_INVALID_PROCESS_ID)
+        if (error.Success() &&
+            launch_info.GetProcessID() != LLDB_INVALID_PROCESS_ID)
         {
             if (named_pipe_path.size() > 0)
             {
-                error = port_pipe.OpenAsReader(named_pipe_path, false);
+                error = socket_pipe.OpenAsReader(named_pipe_path, false);
                 if (error.Fail())
                     if (log)
                         log->Printf("GDBRemoteCommunication::%s() "
@@ -1328,24 +1368,24 @@ GDBRemoteCommunication::StartDebugserverProcess (const char *hostname,
                                 __FUNCTION__, named_pipe_path.c_str(), error.AsCString());
             }
 
-            if (port_pipe.CanWrite())
-                port_pipe.CloseWriteFileDescriptor();
-            if (port_pipe.CanRead())
+            if (socket_pipe.CanWrite())
+                socket_pipe.CloseWriteFileDescriptor();
+            if (socket_pipe.CanRead())
             {
-                char port_cstr[256];
+                char port_cstr[PATH_MAX] = {0};
                 port_cstr[0] = '\0';
                 size_t num_bytes = sizeof(port_cstr);
                 // Read port from pipe with 10 second timeout.
-                error = port_pipe.ReadWithTimeout(port_cstr, num_bytes,
+                error = socket_pipe.ReadWithTimeout(port_cstr, num_bytes,
                         std::chrono::seconds{10}, num_bytes);
-                if (error.Success())
+                if (error.Success() && (port != nullptr))
                 {
                     assert(num_bytes > 0 && port_cstr[num_bytes-1] == '\0');
-                    out_port = StringConvert::ToUInt32(port_cstr, 0);
+                    *port = StringConvert::ToUInt32(port_cstr, 0);
                     if (log)
                         log->Printf("GDBRemoteCommunication::%s() "
-                                "debugserver listens %u port",
-                                __FUNCTION__, out_port);
+                                    "debugserver listens %u port",
+                                    __FUNCTION__, *port);
                 }
                 else
                 {
@@ -1355,12 +1395,12 @@ GDBRemoteCommunication::StartDebugserverProcess (const char *hostname,
                                 __FUNCTION__, named_pipe_path.c_str(), error.AsCString());
 
                 }
-                port_pipe.Close();
+                socket_pipe.Close();
             }
 
             if (named_pipe_path.size() > 0)
             {
-                const auto err = port_pipe.Delete(named_pipe_path);
+                const auto err = socket_pipe.Delete(named_pipe_path);
                 if (err.Fail())
                 {
                     if (log)
diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.h b/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.h
index 7379bb3aa09b1..2a01bcec260ca 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.h
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.h
@@ -12,9 +12,9 @@
 
 // C Includes
 // C++ Includes
-#include <list>
 #include <string>
 #include <queue>
+#include <vector>
 
 // Other libraries and framework includes
 // Project includes
@@ -25,6 +25,7 @@
 #include "lldb/Host/Mutex.h"
 #include "lldb/Host/Predicate.h"
 #include "lldb/Host/TimeValue.h"
+#include "lldb/Interpreter/Args.h"
 
 #include "Utility/StringExtractorGDBRemote.h"
 
@@ -94,14 +95,10 @@ public:
         uint32_t m_saved_timeout;
     };
 
-    //------------------------------------------------------------------
-    // Constructors and Destructors
-    //------------------------------------------------------------------
     GDBRemoteCommunication(const char *comm_name, 
                            const char *listener_name);
 
-    virtual
-    ~GDBRemoteCommunication();
+    ~GDBRemoteCommunication() override;
 
     PacketResult
     GetAck ();
@@ -117,12 +114,13 @@ public:
                         size_t payload_length);
 
     bool
-    GetSequenceMutex (Mutex::Locker& locker, const char *failure_message = NULL);
+    GetSequenceMutex(Mutex::Locker& locker, const char *failure_message = nullptr);
 
     PacketType
     CheckForPacket (const uint8_t *src, 
                     size_t src_len, 
                     StringExtractorGDBRemote &packet);
+
     bool
     IsRunning() const
     {
@@ -162,21 +160,22 @@ public:
     {
         return m_packet_timeout * TimeValue::MicroSecPerSec;
     }
+
     //------------------------------------------------------------------
     // Start a debugserver instance on the current host using the
     // supplied connection URL.
     //------------------------------------------------------------------
     Error
-    StartDebugserverProcess (const char *hostname,
-                             uint16_t in_port, // If set to zero, then out_port will contain the bound port on exit
-                             ProcessLaunchInfo &launch_info,
-                             uint16_t &out_port);
+    StartDebugserverProcess(const char *url,
+                            Platform *platform, // If non nullptr, then check with the platform for the GDB server binary if it can't be located
+                            ProcessLaunchInfo &launch_info,
+                            uint16_t *port,
+                            const Args& inferior_args = Args());
 
     void
     DumpHistory(Stream &strm);
     
 protected:
-
     class History
     {
     public:
@@ -223,6 +222,7 @@ protected:
         AddPacket (char packet_char,
                    PacketType type,
                    uint32_t bytes_transmitted);
+
         void
         AddPacket (const std::string &src,
                    uint32_t src_len,
@@ -241,7 +241,7 @@ protected:
             return m_dumped_to_log;
         }
     
-protected:
+    protected:
         uint32_t
         GetFirstSavedPacketIndex () const
         {
@@ -275,13 +275,30 @@ protected:
             return i % m_packets.size();
         }
 
-        
         std::vector<Entry> m_packets;
         uint32_t m_curr_idx;
         uint32_t m_total_packet_count;
         mutable bool m_dumped_to_log;
     };
 
+    uint32_t m_packet_timeout;
+    uint32_t m_echo_number;
+    LazyBool m_supports_qEcho;
+#ifdef ENABLE_MUTEX_ERROR_CHECKING
+    TrackingMutex m_sequence_mutex;
+#else
+    Mutex m_sequence_mutex;    // Restrict access to sending/receiving packets to a single thread at a time
+#endif
+    Predicate<bool> m_public_is_running;
+    Predicate<bool> m_private_is_running;
+    History m_history;
+    bool m_send_acks;
+    bool m_is_platform; // Set to true if this class represents a platform,
+                        // false if this class represents a debug session for
+                        // a single process
+    
+    CompressionType m_compression_type;
+
     PacketResult
     SendPacket (const char *payload,
                 size_t payload_length);
@@ -321,27 +338,6 @@ protected:
     bool
     DecompressPacket ();
 
-    //------------------------------------------------------------------
-    // Classes that inherit from GDBRemoteCommunication can see and modify these
-    //------------------------------------------------------------------
-    uint32_t m_packet_timeout;
-    uint32_t m_echo_number;
-    LazyBool m_supports_qEcho;
-#ifdef ENABLE_MUTEX_ERROR_CHECKING
-    TrackingMutex m_sequence_mutex;
-#else
-    Mutex m_sequence_mutex;    // Restrict access to sending/receiving packets to a single thread at a time
-#endif
-    Predicate<bool> m_public_is_running;
-    Predicate<bool> m_private_is_running;
-    History m_history;
-    bool m_send_acks;
-    bool m_is_platform; // Set to true if this class represents a platform,
-                        // false if this class represents a debug session for
-                        // a single process
-    
-    CompressionType m_compression_type;
-
     Error
     StartListenThread (const char *hostname = "127.0.0.1", uint16_t port = 0);
 
@@ -361,10 +357,12 @@ protected:
 
     // This method is defined as part of communication.h
     // when the read thread gets any bytes it will pass them on to this function
-    virtual void AppendBytesToCache (const uint8_t * bytes, size_t len, bool broadcast, lldb::ConnectionStatus status);
+    void AppendBytesToCache(const uint8_t * bytes,
+                            size_t len,
+                            bool broadcast,
+                            lldb::ConnectionStatus status) override;
 
 private:
-
     std::queue<StringExtractorGDBRemote> m_packet_queue; // The packet queue
     lldb_private::Mutex m_packet_queue_mutex;            // Mutex for accessing queue
     Condition m_condition_queue_not_empty;               // Condition variable to wait for packets
@@ -372,13 +370,10 @@ private:
     HostThread m_listen_thread;
     std::string m_listen_url;
 
-    //------------------------------------------------------------------
-    // For GDBRemoteCommunication only
-    //------------------------------------------------------------------
     DISALLOW_COPY_AND_ASSIGN (GDBRemoteCommunication);
 };
 
 } // namespace process_gdb_remote
 } // namespace lldb_private
 
-#endif  // liblldb_GDBRemoteCommunication_h_
+#endif // liblldb_GDBRemoteCommunication_h_
diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
index b8c67c593b1f2..5c7f6caca511f 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
@@ -619,7 +619,6 @@ GDBRemoteCommunicationClient::GetThreadsInfo()
     if (m_supports_jThreadsInfo)
     {
         StringExtractorGDBRemote response;
-        m_supports_jThreadExtendedInfo = eLazyBoolNo;
         if (SendPacketAndWaitForResponse("jThreadsInfo", response, false) == PacketResult::Success)
         {
             if (response.IsUnsupportedResponse())
@@ -782,7 +781,7 @@ GDBRemoteCommunicationClient::SendPacketAndWaitForResponse
     Log *log (ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (GDBR_LOG_PROCESS));
 
     // In order to stop async notifications from being processed in the middle of the
-    // send/recieve sequence Hijack the broadcast. Then rebroadcast any events when we are done.
+    // send/receive sequence Hijack the broadcast. Then rebroadcast any events when we are done.
     static Listener hijack_listener("lldb.NotifyHijacker");
     HijackBroadcaster(&hijack_listener, eBroadcastBitGdbReadThreadGotNotify);    
 
@@ -878,10 +877,10 @@ GDBRemoteCommunicationClient::SendPacketAndWaitForResponse
         }
     }
 
-    // Remove our Hijacking listner from the broadcast.
+    // Remove our Hijacking listener from the broadcast.
     RestoreBroadcaster();
 
-    // If a notification event occured, rebroadcast since it can now be processed safely.  
+    // If a notification event occurred, rebroadcast since it can now be processed safely.
     EventSP event_sp;
     if (hijack_listener.GetNextEvent(event_sp))
         BroadcastEvent(event_sp);
@@ -1050,7 +1049,6 @@ GDBRemoteCommunicationClient::SendContinuePacketAndWaitForResponse
     Mutex::Locker locker(m_sequence_mutex);
     StateType state = eStateRunning;
 
-    BroadcastEvent(eBroadcastBitRunPacketSent, NULL);
     m_public_is_running.SetValue (true, eBroadcastNever);
     // Set the starting continue packet into "continue_packet". This packet
     // may change if we are interrupted and we continue after an async packet...
@@ -1060,6 +1058,7 @@ GDBRemoteCommunicationClient::SendContinuePacketAndWaitForResponse
     const auto sigint_signo = process->GetUnixSignals()->GetSignalNumberFromName("SIGINT");
 
     bool got_async_packet = false;
+    bool broadcast_sent = false;
     
     while (state == eStateRunning)
     {
@@ -1072,6 +1071,12 @@ GDBRemoteCommunicationClient::SendContinuePacketAndWaitForResponse
             else
                 m_interrupt_sent = false;
         
+            if (! broadcast_sent)
+            {
+                BroadcastEvent(eBroadcastBitRunPacketSent, NULL);
+                broadcast_sent = true;
+            }
+
             m_private_is_running.SetValue (true, eBroadcastAlways);
         }
         
@@ -1133,10 +1138,10 @@ GDBRemoteCommunicationClient::SendContinuePacketAndWaitForResponse
                                 continue_after_async = false;
 
                                 // We didn't get a SIGINT or SIGSTOP, so try for a
-                                // very brief time (1 ms) to get another stop reply
+                                // very brief time (0.1s) to get another stop reply
                                 // packet to make sure it doesn't get in the way
                                 StringExtractorGDBRemote extra_stop_reply_packet;
-                                uint32_t timeout_usec = 1000;
+                                uint32_t timeout_usec = 100000;
                                 if (ReadPacket (extra_stop_reply_packet, timeout_usec, false) == PacketResult::Success)
                                 {
                                     switch (extra_stop_reply_packet.GetChar())
@@ -1262,9 +1267,13 @@ GDBRemoteCommunicationClient::SendContinuePacketAndWaitForResponse
                         got_async_packet = true;
                         std::string inferior_stdout;
                         inferior_stdout.reserve(response.GetBytesLeft () / 2);
-                        char ch;
-                        while ((ch = response.GetHexU8()) != '\0')
-                            inferior_stdout.append(1, ch);
+
+                        uint8_t ch;
+                        while (response.GetHexU8Ex(ch))
+                        {
+                            if (ch != 0)
+                                inferior_stdout.append(1, (char)ch);
+                        }
                         process->AppendSTDOUT (inferior_stdout.c_str(), inferior_stdout.size());
                     }
                     break;
@@ -1574,6 +1583,8 @@ GDBRemoteCommunicationClient::SendEnvironmentPacket (char const *name_equal_valu
                 {
                     case '$':
                     case '#':
+                    case '*':
+                    case '}':
                         send_hex_encoding = true;
                         break;
                     default:
@@ -2308,7 +2319,8 @@ GDBRemoteCommunicationClient::Detach (bool keep_stopped)
             const int packet_len = ::snprintf(packet, sizeof(packet), "qSupportsDetachAndStayStopped:");
             assert (packet_len < (int)sizeof(packet));
             StringExtractorGDBRemote response;
-            if (SendPacketAndWaitForResponse (packet, packet_len, response, false) == PacketResult::Success)
+            if (SendPacketAndWaitForResponse (packet, packet_len, response, false) == PacketResult::Success
+                  && response.IsOKResponse())
             {
                 m_supports_detach_stay_stopped = eLazyBoolYes;        
             }
@@ -2326,7 +2338,7 @@ GDBRemoteCommunicationClient::Detach (bool keep_stopped)
         else
         {
             StringExtractorGDBRemote response;
-            PacketResult packet_result = SendPacketAndWaitForResponse ("D1", 1, response, false);
+            PacketResult packet_result = SendPacketAndWaitForResponse ("D1", 2, response, false);
             if (packet_result != PacketResult::Success)
                 error.SetErrorString ("Sending extended disconnect packet failed.");
         }
@@ -3311,10 +3323,16 @@ GDBRemoteCommunicationClient::SendSpeedTestPacket (uint32_t send_size, uint32_t
     return SendPacketAndWaitForResponse (packet.GetData(), packet.GetSize(), response, false)  == PacketResult::Success;
 }
 
-uint16_t
-GDBRemoteCommunicationClient::LaunchGDBserverAndGetPort (lldb::pid_t &pid, const char *remote_accept_hostname)
+bool
+GDBRemoteCommunicationClient::LaunchGDBServer (const char *remote_accept_hostname,
+                                               lldb::pid_t &pid,
+                                               uint16_t &port,
+                                               std::string &socket_name)
 {
     pid = LLDB_INVALID_PROCESS_ID;
+    port = 0;
+    socket_name.clear();
+
     StringExtractorGDBRemote response;
     StreamString stream;
     stream.PutCString("qLaunchGDBServer;");
@@ -3339,22 +3357,67 @@ GDBRemoteCommunicationClient::LaunchGDBserverAndGetPort (lldb::pid_t &pid, const
 
     // give the process a few seconds to startup
     GDBRemoteCommunication::ScopedTimeout timeout (*this, 10);
-    
+
     if (SendPacketAndWaitForResponse(packet, packet_len, response, false) == PacketResult::Success)
     {
         std::string name;
         std::string value;
-        uint16_t port = 0;
+        StringExtractor extractor;
         while (response.GetNameColonValue(name, value))
         {
             if (name.compare("port") == 0)
                 port = StringConvert::ToUInt32(value.c_str(), 0, 0);
             else if (name.compare("pid") == 0)
                 pid = StringConvert::ToUInt64(value.c_str(), LLDB_INVALID_PROCESS_ID, 0);
+            else if (name.compare("socket_name") == 0)
+            {
+                extractor.GetStringRef().swap(value);
+                extractor.SetFilePos(0);
+                extractor.GetHexByteString(value);
+
+                socket_name = value;
+            }
         }
-        return port;
+        return true;
     }
-    return 0;
+    return false;
+}
+
+size_t
+GDBRemoteCommunicationClient::QueryGDBServer (std::vector<std::pair<uint16_t, std::string>>& connection_urls)
+{
+    connection_urls.clear();
+
+    StringExtractorGDBRemote response;
+    if (SendPacketAndWaitForResponse("qQueryGDBServer", response, false) != PacketResult::Success)
+        return 0;
+
+    StructuredData::ObjectSP data = StructuredData::ParseJSON(response.GetStringRef());
+    if (!data)
+        return 0;
+
+    StructuredData::Array* array = data->GetAsArray();
+    if (!array)
+        return 0;
+
+    for (size_t i = 0, count = array->GetSize(); i < count; ++i)
+    {
+        StructuredData::Dictionary* element = nullptr;
+        if (!array->GetItemAtIndexAsDictionary(i, element))
+            continue;
+
+        uint16_t port = 0;
+        if (StructuredData::ObjectSP port_osp = element->GetValueForKey(llvm::StringRef("port")))
+            port = port_osp->GetIntegerValue(0);
+
+        std::string socket_name;
+        if (StructuredData::ObjectSP socket_name_osp = element->GetValueForKey(llvm::StringRef("socket_name")))
+            socket_name = socket_name_osp->GetStringValue();
+
+        if (port != 0 || !socket_name.empty())
+            connection_urls.emplace_back(port, socket_name);
+    }
+    return connection_urls.size();
 }
 
 bool
@@ -3395,6 +3458,17 @@ GDBRemoteCommunicationClient::SetCurrentThread (uint64_t tid)
             m_curr_tid = tid;
             return true;
         }
+
+        /*
+         * Connected bare-iron target (like YAMON gdb-stub) may not have support for Hg packet.
+         * The reply from '?' packet could be as simple as 'S05'. There is no packet which can
+         * give us pid and/or tid. Assume pid=tid=1 in such cases.
+        */
+        if (response.IsUnsupportedResponse() && IsConnected())
+        {
+            m_curr_tid = 1;
+            return true;
+        }
     }
     return false;
 }
@@ -3421,6 +3495,17 @@ GDBRemoteCommunicationClient::SetCurrentThreadForRun (uint64_t tid)
             m_curr_tid_run = tid;
             return true;
         }
+
+        /*
+         * Connected bare-iron target (like YAMON gdb-stub) may not have support for Hc packet.
+         * The reply from '?' packet could be as simple as 'S05'. There is no packet which can
+         * give us pid and/or tid. Assume pid=tid=1 in such cases.
+        */
+        if (response.IsUnsupportedResponse() && IsConnected())
+        {
+            m_curr_tid_run = 1;
+            return true;
+        }
     }
     return false;
 }
@@ -3546,6 +3631,17 @@ GDBRemoteCommunicationClient::GetCurrentThreadIDs (std::vector<lldb::tid_t> &thr
                 } while (ch == ',');            // Make sure we got a comma separator
             }
         }
+
+        /*
+         * Connected bare-iron target (like YAMON gdb-stub) may not have support for
+         * qProcessInfo, qC and qfThreadInfo packets. The reply from '?' packet could
+         * be as simple as 'S05'. There is no packet which can give us pid and/or tid.
+         * Assume pid=tid=1 in such cases.
+        */
+        if (response.IsUnsupportedResponse() && thread_ids.size() == 0 && IsConnected())
+        {
+            thread_ids.push_back (1);
+        }
     }
     else
     {
@@ -4347,100 +4443,97 @@ GDBRemoteCommunicationClient::ServeSymbolLookups(lldb_private::Process *process)
         {
             StreamString packet;
             packet.PutCString ("qSymbol::");
-            while (1)
+            StringExtractorGDBRemote response;
+            while (SendPacketAndWaitForResponseNoLock(packet.GetData(), packet.GetSize(), response) == PacketResult::Success)
             {
-                StringExtractorGDBRemote response;
-                if (SendPacketAndWaitForResponseNoLock(packet.GetData(), packet.GetSize(), response) == PacketResult::Success)
+                if (response.IsOKResponse())
                 {
-                    if (response.IsOKResponse())
-                    {
-                        // We are done serving symbols requests
-                        return;
-                    }
+                    // We are done serving symbols requests
+                    return;
+                }
 
-                    if (response.IsUnsupportedResponse())
-                    {
-                        // qSymbol is not supported by the current GDB server we are connected to
-                        m_supports_qSymbol = false;
-                        return;
-                    }
-                    else
+                if (response.IsUnsupportedResponse())
+                {
+                    // qSymbol is not supported by the current GDB server we are connected to
+                    m_supports_qSymbol = false;
+                    return;
+                }
+                else
+                {
+                    llvm::StringRef response_str(response.GetStringRef());
+                    if (response_str.startswith("qSymbol:"))
                     {
-                        llvm::StringRef response_str(response.GetStringRef());
-                        if (response_str.startswith("qSymbol:"))
+                        response.SetFilePos(strlen("qSymbol:"));
+                        std::string symbol_name;
+                        if (response.GetHexByteString(symbol_name))
                         {
-                            response.SetFilePos(strlen("qSymbol:"));
-                            std::string symbol_name;
-                            if (response.GetHexByteString(symbol_name))
-                            {
-                                if (symbol_name.empty())
-                                    return;
+                            if (symbol_name.empty())
+                                return;
 
-                                addr_t symbol_load_addr = LLDB_INVALID_ADDRESS;
-                                lldb_private::SymbolContextList sc_list;
-                                if (process->GetTarget().GetImages().FindSymbolsWithNameAndType(ConstString(symbol_name), eSymbolTypeAny, sc_list))
+                            addr_t symbol_load_addr = LLDB_INVALID_ADDRESS;
+                            lldb_private::SymbolContextList sc_list;
+                            if (process->GetTarget().GetImages().FindSymbolsWithNameAndType(ConstString(symbol_name), eSymbolTypeAny, sc_list))
+                            {
+                                const size_t num_scs = sc_list.GetSize();
+                                for (size_t sc_idx=0; sc_idx<num_scs && symbol_load_addr == LLDB_INVALID_ADDRESS; ++sc_idx)
                                 {
-                                    const size_t num_scs = sc_list.GetSize();
-                                    for (size_t sc_idx=0; sc_idx<num_scs && symbol_load_addr == LLDB_INVALID_ADDRESS; ++sc_idx)
+                                    SymbolContext sc;
+                                    if (sc_list.GetContextAtIndex(sc_idx, sc))
                                     {
-                                        SymbolContext sc;
-                                        if (sc_list.GetContextAtIndex(sc_idx, sc))
+                                        if (sc.symbol)
                                         {
-                                            if (sc.symbol)
+                                            switch (sc.symbol->GetType())
                                             {
-                                                switch (sc.symbol->GetType())
-                                                {
-                                                case eSymbolTypeInvalid:
-                                                case eSymbolTypeAbsolute:
-                                                case eSymbolTypeUndefined:
-                                                case eSymbolTypeSourceFile:
-                                                case eSymbolTypeHeaderFile:
-                                                case eSymbolTypeObjectFile:
-                                                case eSymbolTypeCommonBlock:
-                                                case eSymbolTypeBlock:
-                                                case eSymbolTypeLocal:
-                                                case eSymbolTypeParam:
-                                                case eSymbolTypeVariable:
-                                                case eSymbolTypeVariableType:
-                                                case eSymbolTypeLineEntry:
-                                                case eSymbolTypeLineHeader:
-                                                case eSymbolTypeScopeBegin:
-                                                case eSymbolTypeScopeEnd:
-                                                case eSymbolTypeAdditional:
-                                                case eSymbolTypeCompiler:
-                                                case eSymbolTypeInstrumentation:
-                                                case eSymbolTypeTrampoline:
-                                                    break;
-
-                                                case eSymbolTypeCode:
-                                                case eSymbolTypeResolver:
-                                                case eSymbolTypeData:
-                                                case eSymbolTypeRuntime:
-                                                case eSymbolTypeException:
-                                                case eSymbolTypeObjCClass:
-                                                case eSymbolTypeObjCMetaClass:
-                                                case eSymbolTypeObjCIVar:
-                                                case eSymbolTypeReExported:
-                                                    symbol_load_addr = sc.symbol->GetLoadAddress(&process->GetTarget());
-                                                    break;
-                                                }
+                                            case eSymbolTypeInvalid:
+                                            case eSymbolTypeAbsolute:
+                                            case eSymbolTypeUndefined:
+                                            case eSymbolTypeSourceFile:
+                                            case eSymbolTypeHeaderFile:
+                                            case eSymbolTypeObjectFile:
+                                            case eSymbolTypeCommonBlock:
+                                            case eSymbolTypeBlock:
+                                            case eSymbolTypeLocal:
+                                            case eSymbolTypeParam:
+                                            case eSymbolTypeVariable:
+                                            case eSymbolTypeVariableType:
+                                            case eSymbolTypeLineEntry:
+                                            case eSymbolTypeLineHeader:
+                                            case eSymbolTypeScopeBegin:
+                                            case eSymbolTypeScopeEnd:
+                                            case eSymbolTypeAdditional:
+                                            case eSymbolTypeCompiler:
+                                            case eSymbolTypeInstrumentation:
+                                            case eSymbolTypeTrampoline:
+                                                break;
+
+                                            case eSymbolTypeCode:
+                                            case eSymbolTypeResolver:
+                                            case eSymbolTypeData:
+                                            case eSymbolTypeRuntime:
+                                            case eSymbolTypeException:
+                                            case eSymbolTypeObjCClass:
+                                            case eSymbolTypeObjCMetaClass:
+                                            case eSymbolTypeObjCIVar:
+                                            case eSymbolTypeReExported:
+                                                symbol_load_addr = sc.symbol->GetLoadAddress(&process->GetTarget());
+                                                break;
                                             }
                                         }
                                     }
                                 }
-                                // This is the normal path where our symbol lookup was successful and we want
-                                // to send a packet with the new symbol value and see if another lookup needs to be
-                                // done.
-
-                                // Change "packet" to contain the requested symbol value and name
-                                packet.Clear();
-                                packet.PutCString("qSymbol:");
-                                if (symbol_load_addr != LLDB_INVALID_ADDRESS)
-                                    packet.Printf("%" PRIx64, symbol_load_addr);
-                                packet.PutCString(":");
-                                packet.PutBytesAsRawHex8(symbol_name.data(), symbol_name.size());
-                                continue; // go back to the while loop and send "packet" and wait for another response
                             }
+                            // This is the normal path where our symbol lookup was successful and we want
+                            // to send a packet with the new symbol value and see if another lookup needs to be
+                            // done.
+
+                            // Change "packet" to contain the requested symbol value and name
+                            packet.Clear();
+                            packet.PutCString("qSymbol:");
+                            if (symbol_load_addr != LLDB_INVALID_ADDRESS)
+                                packet.Printf("%" PRIx64, symbol_load_addr);
+                            packet.PutCString(":");
+                            packet.PutBytesAsRawHex8(symbol_name.data(), symbol_name.size());
+                            continue; // go back to the while loop and send "packet" and wait for another response
                         }
                     }
                 }
diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
index b08ff0647797c..d2df214d0dbad 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
@@ -12,6 +12,8 @@
 
 // C Includes
 // C++ Includes
+#include <map>
+#include <string>
 #include <vector>
 
 // Other libraries and framework includes
@@ -28,12 +30,9 @@ namespace process_gdb_remote {
 class GDBRemoteCommunicationClient : public GDBRemoteCommunication
 {
 public:
-    //------------------------------------------------------------------
-    // Constructors and Destructors
-    //------------------------------------------------------------------
     GDBRemoteCommunicationClient();
 
-    ~GDBRemoteCommunicationClient();
+    ~GDBRemoteCommunicationClient() override;
 
     //------------------------------------------------------------------
     // After connecting, send the handshake to the server to make sure
@@ -79,6 +78,7 @@ public:
                                           const char *packet_payload,
                                           size_t packet_length,
                                           StringExtractorGDBRemote &response);
+
     bool
     SendvContPacket (ProcessGDBRemote *process,
                      const char *payload,
@@ -114,9 +114,15 @@ public:
     bool
     GetLaunchSuccess (std::string &error_str);
 
-    uint16_t
-    LaunchGDBserverAndGetPort (lldb::pid_t &pid, const char *remote_accept_hostname);
-    
+    bool
+    LaunchGDBServer (const char *remote_accept_hostname,
+                     lldb::pid_t &pid,
+                     uint16_t &port,
+                     std::string &socket_name);
+
+    size_t
+    QueryGDBServer (std::vector<std::pair<uint16_t, std::string>>& connection_urls);
+
     bool
     KillSpawnedProcess (lldb::pid_t pid);
 
@@ -161,7 +167,7 @@ public:
     SendLaunchArchPacket (const char *arch);
     
     int
-    SendLaunchEventDataPacket (const char *data, bool *was_supported = NULL);
+    SendLaunchEventDataPacket(const char *data, bool *was_supported = nullptr);
     
     //------------------------------------------------------------------
     /// Sends a "vAttach:PID" where PID is in hex. 
@@ -182,7 +188,6 @@ public:
     SendAttach (lldb::pid_t pid, 
                 StringExtractorGDBRemote& response);
 
-
     //------------------------------------------------------------------
     /// Sends a GDB remote protocol 'I' packet that delivers stdin
     /// data to the remote process.
@@ -396,6 +401,7 @@ public:
         default:                    return false;
         }
     }
+
     uint8_t
     SendGDBStoppointTypePacket (GDBStoppointType type,   // Type of breakpoint or watchpoint
                                 bool insert,              // Insert or remove?
@@ -505,11 +511,11 @@ public:
     GetFileExists (const FileSpec& file_spec);
     
     Error
-    RunShellCommand(const char *command,           // Shouldn't be NULL
+    RunShellCommand(const char *command,           // Shouldn't be nullptr
                     const FileSpec &working_dir,   // Pass empty FileSpec to use the current working directory
-                    int *status_ptr,               // Pass NULL if you don't want the process exit status
-                    int *signo_ptr,                // Pass NULL if you don't want the signal that caused the process to exit
-                    std::string *command_output,   // Pass NULL if you don't want the command output
+                    int *status_ptr,               // Pass nullptr if you don't want the process exit status
+                    int *signo_ptr,                // Pass nullptr if you don't want the signal that caused the process to exit
+                    std::string *command_output,   // Pass nullptr if you don't want the command output
                     uint32_t timeout_sec);         // Timeout in seconds to wait for shell program to finish
 
     bool
@@ -567,26 +573,6 @@ public:
     ServeSymbolLookups(lldb_private::Process *process);
 
 protected:
-
-    PacketResult
-    SendPacketAndWaitForResponseNoLock (const char *payload,
-                                        size_t payload_length,
-                                        StringExtractorGDBRemote &response);
-
-    bool
-    GetCurrentProcessInfo (bool allow_lazy_pid = true);
-
-    bool
-    GetGDBServerVersion();
-
-    // Given the list of compression types that the remote debug stub can support,
-    // possibly enable compression if we find an encoding we can handle.
-    void
-    MaybeEnableCompression (std::vector<std::string> supported_compressions);
-
-    //------------------------------------------------------------------
-    // Classes that inherit from GDBRemoteCommunicationClient can see and modify these
-    //------------------------------------------------------------------
     LazyBool m_supports_not_sending_acks;
     LazyBool m_supports_thread_suffix;
     LazyBool m_supports_threads_in_stop_reply;
@@ -639,7 +625,6 @@ protected:
     lldb::tid_t m_curr_tid;         // Current gdb remote protocol thread index for all other operations
     lldb::tid_t m_curr_tid_run;     // Current gdb remote protocol thread index for continue, step, etc
 
-
     uint32_t m_num_supported_hardware_watchpoints;
 
     // If we need to send a packet while the target is running, the m_async_XXX
@@ -667,18 +652,31 @@ protected:
     uint32_t m_default_packet_timeout;
     uint64_t m_max_packet_size;  // as returned by qSupported
 
-    
+    PacketResult
+    SendPacketAndWaitForResponseNoLock (const char *payload,
+                                        size_t payload_length,
+                                        StringExtractorGDBRemote &response);
+
+    bool
+    GetCurrentProcessInfo (bool allow_lazy_pid = true);
+
+    bool
+    GetGDBServerVersion();
+
+    // Given the list of compression types that the remote debug stub can support,
+    // possibly enable compression if we find an encoding we can handle.
+    void
+    MaybeEnableCompression (std::vector<std::string> supported_compressions);
+
     bool
     DecodeProcessInfoResponse (StringExtractorGDBRemote &response, 
                                ProcessInstanceInfo &process_info);
+
 private:
-    //------------------------------------------------------------------
-    // For GDBRemoteCommunicationClient only
-    //------------------------------------------------------------------
     DISALLOW_COPY_AND_ASSIGN (GDBRemoteCommunicationClient);
 };
 
 } // namespace process_gdb_remote
 } // namespace lldb_private
 
-#endif  // liblldb_GDBRemoteCommunicationClient_h_
+#endif // liblldb_GDBRemoteCommunicationClient_h_
diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.h b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.h
index 44c0f6a32f5b7..1d512bf1de595 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.h
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.h
@@ -39,8 +39,7 @@ public:
     GDBRemoteCommunicationServer(const char *comm_name,
                                  const char *listener_name);
 
-    virtual
-    ~GDBRemoteCommunicationServer();
+    ~GDBRemoteCommunicationServer() override;
 
     void RegisterPacketHandler(StringExtractorGDBRemote::ServerPacketType packet_type,
                                PacketHandler handler);
@@ -73,13 +72,10 @@ protected:
     SendOKResponse ();
 
 private:
-    //------------------------------------------------------------------
-    // For GDBRemoteCommunicationServer only
-    //------------------------------------------------------------------
     DISALLOW_COPY_AND_ASSIGN (GDBRemoteCommunicationServer);
 };
 
 } // namespace process_gdb_remote
 } // namespace lldb_private
 
-#endif  // liblldb_GDBRemoteCommunicationServer_h_
+#endif // liblldb_GDBRemoteCommunicationServer_h_
diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp
index 698854e5dfbd7..7f876fb393d9d 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp
@@ -58,8 +58,6 @@ using namespace lldb_private::process_gdb_remote;
 //----------------------------------------------------------------------
 GDBRemoteCommunicationServerCommon::GDBRemoteCommunicationServerCommon(const char *comm_name, const char *listener_name) :
     GDBRemoteCommunicationServer (comm_name, listener_name),
-    m_spawned_pids (),
-    m_spawned_pids_mutex (Mutex::eMutexTypeRecursive),
     m_process_launch_info (),
     m_process_launch_error (),
     m_proc_infos (),
@@ -79,8 +77,6 @@ GDBRemoteCommunicationServerCommon::GDBRemoteCommunicationServerCommon(const cha
                                   &GDBRemoteCommunicationServerCommon::Handle_qGroupName);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_qHostInfo,
                                   &GDBRemoteCommunicationServerCommon::Handle_qHostInfo);
-    RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_qKillSpawnedProcess,
-                                  &GDBRemoteCommunicationServerCommon::Handle_qKillSpawnedProcess);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_QLaunchArch,
                                   &GDBRemoteCommunicationServerCommon::Handle_QLaunchArch);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_qLaunchSuccess,
@@ -185,14 +181,20 @@ GDBRemoteCommunicationServerCommon::Handle_qHostInfo (StringExtractorGDBRemote &
     else
         response.Printf("watchpoint_exceptions_received:after;");
 #else
-    if (host_arch.GetMachine() == llvm::Triple::mips64 ||
-        host_arch.GetMachine() == llvm::Triple::mips64el)
+    if (host_arch.GetMachine() == llvm::Triple::aarch64 ||
+        host_arch.GetMachine() == llvm::Triple::aarch64_be ||
+        host_arch.GetMachine() == llvm::Triple::arm ||
+        host_arch.GetMachine() == llvm::Triple::armeb ||
+        host_arch.GetMachine() == llvm::Triple::mips64 ||
+        host_arch.GetMachine() == llvm::Triple::mips64el ||
+        host_arch.GetMachine() == llvm::Triple::mips ||
+        host_arch.GetMachine() == llvm::Triple::mipsel)
         response.Printf("watchpoint_exceptions_received:before;");
     else
         response.Printf("watchpoint_exceptions_received:after;");
 #endif
 
-    switch (lldb::endian::InlHostByteOrder())
+    switch (endian::InlHostByteOrder())
     {
     case eByteOrderBig:     response.PutCString ("endian:big;"); break;
     case eByteOrderLittle:  response.PutCString ("endian:little;"); break;
@@ -485,94 +487,6 @@ GDBRemoteCommunicationServerCommon::Handle_qSpeedTest (StringExtractorGDBRemote
 }
 
 GDBRemoteCommunication::PacketResult
-GDBRemoteCommunicationServerCommon::Handle_qKillSpawnedProcess (StringExtractorGDBRemote &packet)
-{
-    packet.SetFilePos(::strlen ("qKillSpawnedProcess:"));
-
-    lldb::pid_t pid = packet.GetU64(LLDB_INVALID_PROCESS_ID);
-
-    // verify that we know anything about this pid.
-    // Scope for locker
-    {
-        Mutex::Locker locker (m_spawned_pids_mutex);
-        if (m_spawned_pids.find(pid) == m_spawned_pids.end())
-        {
-            // not a pid we know about
-            return SendErrorResponse (10);
-        }
-    }
-
-    // go ahead and attempt to kill the spawned process
-    if (KillSpawnedProcess (pid))
-        return SendOKResponse ();
-    else
-        return SendErrorResponse (11);
-}
-
-bool
-GDBRemoteCommunicationServerCommon::KillSpawnedProcess (lldb::pid_t pid)
-{
-    // make sure we know about this process
-    {
-        Mutex::Locker locker (m_spawned_pids_mutex);
-        if (m_spawned_pids.find(pid) == m_spawned_pids.end())
-            return false;
-    }
-
-    // first try a SIGTERM (standard kill)
-    Host::Kill (pid, SIGTERM);
-
-    // check if that worked
-    for (size_t i=0; i<10; ++i)
-    {
-        {
-            Mutex::Locker locker (m_spawned_pids_mutex);
-            if (m_spawned_pids.find(pid) == m_spawned_pids.end())
-            {
-                // it is now killed
-                return true;
-            }
-        }
-        usleep (10000);
-    }
-
-    // check one more time after the final usleep
-    {
-        Mutex::Locker locker (m_spawned_pids_mutex);
-        if (m_spawned_pids.find(pid) == m_spawned_pids.end())
-            return true;
-    }
-
-    // the launched process still lives.  Now try killing it again,
-    // this time with an unblockable signal.
-    Host::Kill (pid, SIGKILL);
-
-    for (size_t i=0; i<10; ++i)
-    {
-        {
-            Mutex::Locker locker (m_spawned_pids_mutex);
-            if (m_spawned_pids.find(pid) == m_spawned_pids.end())
-            {
-                // it is now killed
-                return true;
-            }
-        }
-        usleep (10000);
-    }
-
-    // check one more time after the final usleep
-    // Scope for locker
-    {
-        Mutex::Locker locker (m_spawned_pids_mutex);
-        if (m_spawned_pids.find(pid) == m_spawned_pids.end())
-            return true;
-    }
-
-    // no luck - the process still lives
-    return false;
-}
-
-GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerCommon::Handle_vFile_Open (StringExtractorGDBRemote &packet)
 {
     packet.SetFilePos(::strlen("vFile:open:"));
@@ -1299,6 +1213,7 @@ GDBRemoteCommunicationServerCommon::CreateProcessInfoResponse_DebugServerStyle (
             switch (proc_triple.getArch ())
             {
                 case llvm::Triple::arm:
+                case llvm::Triple::thumb:
                 case llvm::Triple::aarch64:
                     ostype = "ios";
                     break;
diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.h b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.h
index 62b129bb18b9a..f55b2eb3f4dc7 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.h
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.h
@@ -12,14 +12,14 @@
 
 // C Includes
 // C++ Includes
-#include <set>
+#include <string>
 
 // Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-private-forward.h"
 #include "lldb/Host/Mutex.h"
 #include "lldb/Target/Process.h"
 
-// Project includes
 #include "GDBRemoteCommunicationServer.h"
 #include "GDBRemoteCommunicationServerCommon.h"
 
@@ -36,12 +36,9 @@ class GDBRemoteCommunicationServerCommon :
 public:
     GDBRemoteCommunicationServerCommon(const char *comm_name, const char *listener_name);
 
-    virtual
-    ~GDBRemoteCommunicationServerCommon();
+    ~GDBRemoteCommunicationServerCommon() override;
 
 protected:
-    std::set<lldb::pid_t> m_spawned_pids;
-    Mutex m_spawned_pids_mutex;
     ProcessLaunchInfo m_process_launch_info;
     Error m_process_launch_error;
     ProcessInstanceInfoList m_proc_infos;
@@ -74,9 +71,6 @@ protected:
     Handle_qSpeedTest (StringExtractorGDBRemote &packet);
 
     PacketResult
-    Handle_qKillSpawnedProcess (StringExtractorGDBRemote &packet);
-
-    PacketResult
     Handle_vFile_Open (StringExtractorGDBRemote &packet);
 
     PacketResult
@@ -160,9 +154,6 @@ protected:
     PacketResult
     Handle_QLaunchArch (StringExtractorGDBRemote &packet);
 
-    bool
-    KillSpawnedProcess (lldb::pid_t pid);
-
     static void
     CreateProcessInfoResponse (const ProcessInstanceInfo &proc_info,
                                StreamString &response);
@@ -213,4 +204,4 @@ protected:
 } // namespace process_gdb_remote
 } // namespace lldb_private
 
-#endif  // liblldb_GDBRemoteCommunicationServerCommon_h_
+#endif // liblldb_GDBRemoteCommunicationServerCommon_h_
diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
index c4523252f1908..921369c7ef21c 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
@@ -43,6 +43,8 @@
 #include "lldb/Host/common/NativeRegisterContext.h"
 #include "lldb/Host/common/NativeProcessProtocol.h"
 #include "lldb/Host/common/NativeThreadProtocol.h"
+#include "lldb/Utility/JSON.h"
+#include "lldb/Utility/LLDBAssert.h"
 
 // Project includes
 #include "Utility/StringExtractorGDBRemote.h"
@@ -96,20 +98,6 @@ GDBRemoteCommunicationServerLLGS::GDBRemoteCommunicationServerLLGS(
     RegisterPacketHandlers();
 }
 
-//----------------------------------------------------------------------
-// Destructor
-//----------------------------------------------------------------------
-GDBRemoteCommunicationServerLLGS::~GDBRemoteCommunicationServerLLGS()
-{
-    Mutex::Locker locker (m_debugged_process_mutex);
-
-    if (m_debugged_process_sp)
-    {
-        m_debugged_process_sp->Terminate ();
-        m_debugged_process_sp.reset ();
-    }
-}
-
 void
 GDBRemoteCommunicationServerLLGS::RegisterPacketHandlers()
 {
@@ -126,7 +114,7 @@ GDBRemoteCommunicationServerLLGS::RegisterPacketHandlers()
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_interrupt,
                                   &GDBRemoteCommunicationServerLLGS::Handle_interrupt);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_m,
-                                  &GDBRemoteCommunicationServerLLGS::Handle_m);
+                                  &GDBRemoteCommunicationServerLLGS::Handle_memory_read);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_M,
                                   &GDBRemoteCommunicationServerLLGS::Handle_M);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_p,
@@ -161,6 +149,8 @@ GDBRemoteCommunicationServerLLGS::RegisterPacketHandlers()
                                   &GDBRemoteCommunicationServerLLGS::Handle_qsThreadInfo);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_qThreadStopInfo,
                                   &GDBRemoteCommunicationServerLLGS::Handle_qThreadStopInfo);
+    RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_jThreadsInfo,
+                                  &GDBRemoteCommunicationServerLLGS::Handle_jThreadsInfo);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_qWatchpointSupportInfo,
                                   &GDBRemoteCommunicationServerLLGS::Handle_qWatchpointSupportInfo);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_qXfer_auxv_read,
@@ -175,6 +165,8 @@ GDBRemoteCommunicationServerLLGS::RegisterPacketHandlers()
                                   &GDBRemoteCommunicationServerLLGS::Handle_vCont);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_vCont_actions,
                                   &GDBRemoteCommunicationServerLLGS::Handle_vCont_actions);
+    RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_x,
+                                  &GDBRemoteCommunicationServerLLGS::Handle_memory_read);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_Z,
                                   &GDBRemoteCommunicationServerLLGS::Handle_Z);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_z,
@@ -223,6 +215,7 @@ GDBRemoteCommunicationServerLLGS::LaunchProcess ()
         error = NativeProcessProtocol::Launch(
             m_process_launch_info,
             *this,
+            m_mainloop,
             m_debugged_process_sp);
     }
 
@@ -274,17 +267,6 @@ GDBRemoteCommunicationServerLLGS::LaunchProcess ()
 
     printf ("Launched '%s' as process %" PRIu64 "...\n", m_process_launch_info.GetArguments ().GetArgumentAtIndex (0), m_process_launch_info.GetProcessID ());
 
-    // Add to list of spawned processes.
-    lldb::pid_t pid;
-    if ((pid = m_process_launch_info.GetProcessID ()) != LLDB_INVALID_PROCESS_ID)
-    {
-        // add to spawned pids
-        Mutex::Locker locker (m_spawned_pids_mutex);
-        // On an lldb-gdbserver, we would expect there to be only one.
-        assert (m_spawned_pids.empty () && "lldb-gdbserver adding tracked process but one already existed");
-        m_spawned_pids.insert (pid);
-    }
-
     return error;
 }
 
@@ -297,48 +279,37 @@ GDBRemoteCommunicationServerLLGS::AttachToProcess (lldb::pid_t pid)
     if (log)
         log->Printf ("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64, __FUNCTION__, pid);
 
-    // Scope for mutex locker.
+    // Before we try to attach, make sure we aren't already monitoring something else.
+    if (m_debugged_process_sp  && m_debugged_process_sp->GetID() != LLDB_INVALID_PROCESS_ID)
+        return Error("cannot attach to a process %" PRIu64 " when another process with pid %" PRIu64 " is being debugged.", pid, m_debugged_process_sp->GetID());
+
+    // Try to attach.
+    error = NativeProcessProtocol::Attach(pid, *this, m_mainloop, m_debugged_process_sp);
+    if (!error.Success ())
     {
-        // Before we try to attach, make sure we aren't already monitoring something else.
-        Mutex::Locker locker (m_spawned_pids_mutex);
-        if (!m_spawned_pids.empty ())
-        {
-            error.SetErrorStringWithFormat ("cannot attach to a process %" PRIu64 " when another process with pid %" PRIu64 " is being debugged.", pid, *m_spawned_pids.begin());
-            return error;
-        }
+        fprintf (stderr, "%s: failed to attach to process %" PRIu64 ": %s", __FUNCTION__, pid, error.AsCString ());
+        return error;
+    }
 
-        // Try to attach.
-        error = NativeProcessProtocol::Attach(pid, *this, m_debugged_process_sp);
-        if (!error.Success ())
-        {
-            fprintf (stderr, "%s: failed to attach to process %" PRIu64 ": %s", __FUNCTION__, pid, error.AsCString ());
+    // Setup stdout/stderr mapping from inferior.
+    auto terminal_fd = m_debugged_process_sp->GetTerminalFileDescriptor ();
+    if (terminal_fd >= 0)
+    {
+        if (log)
+            log->Printf ("ProcessGDBRemoteCommunicationServerLLGS::%s setting inferior STDIO fd to %d", __FUNCTION__, terminal_fd);
+        error = SetSTDIOFileDescriptor (terminal_fd);
+        if (error.Fail ())
             return error;
-        }
-
-        // Setup stdout/stderr mapping from inferior.
-        auto terminal_fd = m_debugged_process_sp->GetTerminalFileDescriptor ();
-        if (terminal_fd >= 0)
-        {
-            if (log)
-                log->Printf ("ProcessGDBRemoteCommunicationServerLLGS::%s setting inferior STDIO fd to %d", __FUNCTION__, terminal_fd);
-            error = SetSTDIOFileDescriptor (terminal_fd);
-            if (error.Fail ())
-                return error;
-        }
-        else
-        {
-            if (log)
-                log->Printf ("ProcessGDBRemoteCommunicationServerLLGS::%s ignoring inferior STDIO since terminal fd reported as %d", __FUNCTION__, terminal_fd);
-        }
-
-        printf ("Attached to process %" PRIu64 "...\n", pid);
+    }
+    else
+    {
+        if (log)
+            log->Printf ("ProcessGDBRemoteCommunicationServerLLGS::%s ignoring inferior STDIO since terminal fd reported as %d", __FUNCTION__, terminal_fd);
+    }
 
-        // Add to list of spawned processes.
-        assert (m_spawned_pids.empty () && "lldb-gdbserver adding tracked process but one already existed");
-        m_spawned_pids.insert (pid);
+    printf ("Attached to process %" PRIu64 "...\n", pid);
 
-        return error;
-    }
+    return error;
 }
 
 void
@@ -455,6 +426,178 @@ WriteRegisterValueInHexFixedWidth (StreamString &response,
     }
 }
 
+static JSONObject::SP
+GetRegistersAsJSON(NativeThreadProtocol &thread, bool abridged)
+{
+    Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_THREAD));
+
+    NativeRegisterContextSP reg_ctx_sp = thread.GetRegisterContext ();
+    if (! reg_ctx_sp)
+        return nullptr;
+
+    JSONObject::SP register_object_sp = std::make_shared<JSONObject>();
+
+#ifdef LLDB_JTHREADSINFO_FULL_REGISTER_SET
+    // Expedite all registers in the first register set (i.e. should be GPRs) that are not contained in other registers.
+    const RegisterSet *reg_set_p = reg_ctx_sp->GetRegisterSet(0);
+    if (! reg_set_p)
+        return nullptr;
+    for (const uint32_t *reg_num_p = reg_set_p->registers; *reg_num_p != LLDB_INVALID_REGNUM; ++reg_num_p)
+    {
+        uint32_t reg_num = *reg_num_p;
+#else
+    // Expedite only a couple of registers until we figure out why sending registers is
+    // expensive.
+    static const uint32_t k_expedited_registers[] = {
+        LLDB_REGNUM_GENERIC_PC, LLDB_REGNUM_GENERIC_SP, LLDB_REGNUM_GENERIC_FP, LLDB_REGNUM_GENERIC_RA, LLDB_INVALID_REGNUM
+    };
+    static const uint32_t k_abridged_expedited_registers[] = {
+        LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM
+    };
+
+    for (const uint32_t *generic_reg_p = abridged ? k_abridged_expedited_registers : k_expedited_registers;
+         *generic_reg_p != LLDB_INVALID_REGNUM;
+         ++generic_reg_p)
+    {
+        uint32_t reg_num = reg_ctx_sp->ConvertRegisterKindToRegisterNumber(eRegisterKindGeneric, *generic_reg_p);
+        if (reg_num == LLDB_INVALID_REGNUM)
+            continue; // Target does not support the given register.
+#endif
+
+        const RegisterInfo *const reg_info_p = reg_ctx_sp->GetRegisterInfoAtIndex(reg_num);
+        if (reg_info_p == nullptr)
+        {
+            if (log)
+                log->Printf("%s failed to get register info for register index %" PRIu32,
+                        __FUNCTION__, reg_num);
+            continue;
+        }
+
+        if (reg_info_p->value_regs != nullptr)
+            continue; // Only expedite registers that are not contained in other registers.
+
+        RegisterValue reg_value;
+        Error error = reg_ctx_sp->ReadRegister(reg_info_p, reg_value);
+        if (error.Fail())
+        {
+            if (log)
+                log->Printf("%s failed to read register '%s' index %" PRIu32 ": %s", __FUNCTION__,
+                        reg_info_p->name ? reg_info_p->name : "<unnamed-register>", reg_num,
+                        error.AsCString ());
+            continue;
+        }
+
+        StreamString stream;
+        WriteRegisterValueInHexFixedWidth(stream, reg_ctx_sp, *reg_info_p, &reg_value);
+
+        register_object_sp->SetObject(std::to_string(reg_num),
+                std::make_shared<JSONString>(stream.GetString()));
+    }
+
+    return register_object_sp;
+}
+
+static const char *
+GetStopReasonString(StopReason stop_reason)
+{
+    switch (stop_reason)
+    {
+    case eStopReasonTrace:
+        return "trace";
+    case eStopReasonBreakpoint:
+        return "breakpoint";
+    case eStopReasonWatchpoint:
+        return "watchpoint";
+    case eStopReasonSignal:
+        return "signal";
+    case eStopReasonException:
+        return "exception";
+    case eStopReasonExec:
+        return "exec";
+    case eStopReasonInstrumentation:
+    case eStopReasonInvalid:
+    case eStopReasonPlanComplete:
+    case eStopReasonThreadExiting:
+    case eStopReasonNone:
+        break; // ignored
+    }
+    return nullptr;
+}
+
+static JSONArray::SP
+GetJSONThreadsInfo(NativeProcessProtocol &process, bool abridged)
+{
+    Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_PROCESS | LIBLLDB_LOG_THREAD));
+
+    JSONArray::SP threads_array_sp = std::make_shared<JSONArray>();
+
+    // Ensure we can get info on the given thread.
+    uint32_t thread_idx = 0;
+    for ( NativeThreadProtocolSP thread_sp;
+          (thread_sp = process.GetThreadAtIndex(thread_idx)) != nullptr;
+          ++thread_idx)
+    {
+
+        lldb::tid_t tid = thread_sp->GetID();
+
+        // Grab the reason this thread stopped.
+        struct ThreadStopInfo tid_stop_info;
+        std::string description;
+        if (!thread_sp->GetStopReason (tid_stop_info, description))
+            return nullptr;
+
+        const int signum = tid_stop_info.details.signal.signo;
+        if (log)
+        {
+            log->Printf ("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64 " tid %" PRIu64 " got signal signo = %d, reason = %d, exc_type = %" PRIu64,
+                    __FUNCTION__,
+                    process.GetID (),
+                    tid,
+                    signum,
+                    tid_stop_info.reason,
+                    tid_stop_info.details.exception.type);
+        }
+
+        JSONObject::SP thread_obj_sp = std::make_shared<JSONObject>();
+        threads_array_sp->AppendObject(thread_obj_sp);
+
+        if (JSONObject::SP registers_sp = GetRegistersAsJSON(*thread_sp, abridged))
+            thread_obj_sp->SetObject("registers", registers_sp);
+
+        thread_obj_sp->SetObject("tid", std::make_shared<JSONNumber>(tid));
+        if (signum != 0)
+            thread_obj_sp->SetObject("signal", std::make_shared<JSONNumber>(signum));
+
+        const std::string thread_name = thread_sp->GetName ();
+        if (! thread_name.empty())
+            thread_obj_sp->SetObject("name", std::make_shared<JSONString>(thread_name));
+
+        if (const char *stop_reason_str = GetStopReasonString(tid_stop_info.reason))
+            thread_obj_sp->SetObject("reason", std::make_shared<JSONString>(stop_reason_str));
+
+        if (! description.empty())
+            thread_obj_sp->SetObject("description", std::make_shared<JSONString>(description));
+
+        if ((tid_stop_info.reason == eStopReasonException) && tid_stop_info.details.exception.type)
+        {
+            thread_obj_sp->SetObject("metype",
+                    std::make_shared<JSONNumber>(tid_stop_info.details.exception.type));
+
+            JSONArray::SP medata_array_sp = std::make_shared<JSONArray>();
+            for (uint32_t i = 0; i < tid_stop_info.details.exception.data_count; ++i)
+            {
+                medata_array_sp->AppendObject(std::make_shared<JSONNumber>(
+                            tid_stop_info.details.exception.data[i]));
+            }
+            thread_obj_sp->SetObject("medata", medata_array_sp);
+        }
+
+        // TODO: Expedite interesting regions of inferior memory
+    }
+
+    return threads_array_sp;
+}
+
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::SendStopReplyPacketForThread (lldb::tid_t tid)
 {
@@ -548,6 +691,31 @@ GDBRemoteCommunicationServerLLGS::SendStopReplyPacketForThread (lldb::tid_t tid)
             response.Printf ("%" PRIx64, listed_thread_sp->GetID ());
         }
         response.PutChar (';');
+
+        // Include JSON info that describes the stop reason for any threads
+        // that actually have stop reasons. We use the new "jstopinfo" key
+        // whose values is hex ascii JSON that contains the thread IDs
+        // thread stop info only for threads that have stop reasons. Only send
+        // this if we have more than one thread otherwise this packet has all
+        // the info it needs.
+        if (thread_index > 0)
+        {
+            const bool threads_with_valid_stop_info_only = true;
+            JSONArray::SP threads_info_sp = GetJSONThreadsInfo(*m_debugged_process_sp,
+                                                               threads_with_valid_stop_info_only);
+            if (threads_info_sp)
+            {
+                response.PutCString("jstopinfo:");
+                StreamString unescaped_response;
+                threads_info_sp->Write(unescaped_response);
+                response.PutCStringAsRawHex8(unescaped_response.GetData());
+                response.PutChar(';');
+            }
+            else if (log)
+                log->Printf ("GDBRemoteCommunicationServerLLGS::%s failed to prepare a jstopinfo field for pid %" PRIu64,
+                        __FUNCTION__, m_debugged_process_sp->GetID());
+
+        }
     }
 
     //
@@ -595,34 +763,7 @@ GDBRemoteCommunicationServerLLGS::SendStopReplyPacketForThread (lldb::tid_t tid)
         }
     }
 
-    const char* reason_str = nullptr;
-    switch (tid_stop_info.reason)
-    {
-    case eStopReasonTrace:
-        reason_str = "trace";
-        break;
-    case eStopReasonBreakpoint:
-        reason_str = "breakpoint";
-        break;
-    case eStopReasonWatchpoint:
-        reason_str = "watchpoint";
-        break;
-    case eStopReasonSignal:
-        reason_str = "signal";
-        break;
-    case eStopReasonException:
-        reason_str = "exception";
-        break;
-    case eStopReasonExec:
-        reason_str = "exec";
-        break;
-    case eStopReasonInstrumentation:
-    case eStopReasonInvalid:
-    case eStopReasonPlanComplete:
-    case eStopReasonThreadExiting:
-    case eStopReasonNone:
-        break;
-    }
+    const char* reason_str = GetStopReasonString(tid_stop_info.reason);
     if (reason_str != nullptr)
     {
         response.Printf ("reason:%s;", reason_str);
@@ -663,43 +804,15 @@ GDBRemoteCommunicationServerLLGS::HandleInferiorState_Exited (NativeProcessProto
     if (log)
         log->Printf ("GDBRemoteCommunicationServerLLGS::%s called", __FUNCTION__);
 
-    // Send the exit result, and don't flush output.
-    // Note: flushing output here would join the inferior stdio reflection thread, which
-    // would gunk up the waitpid monitor thread that is calling this.
-    PacketResult result = SendStopReasonForState (StateType::eStateExited, false);
+    PacketResult result = SendStopReasonForState(StateType::eStateExited);
     if (result != PacketResult::Success)
     {
         if (log)
             log->Printf ("GDBRemoteCommunicationServerLLGS::%s failed to send stop notification for PID %" PRIu64 ", state: eStateExited", __FUNCTION__, process->GetID ());
     }
 
-    // Remove the process from the list of spawned pids.
-    {
-        Mutex::Locker locker (m_spawned_pids_mutex);
-        if (m_spawned_pids.erase (process->GetID ()) < 1)
-        {
-            if (log)
-                log->Printf ("GDBRemoteCommunicationServerLLGS::%s failed to remove PID %" PRIu64 " from the spawned pids list", __FUNCTION__, process->GetID ());
-
-        }
-    }
-
-    // FIXME can't do this yet - since process state propagation is currently
-    // synchronous, it is running off the NativeProcessProtocol's innards and
-    // will tear down the NPP while it still has code to execute.
-#if 0
-    // Clear the NativeProcessProtocol pointer.
-    {
-        Mutex::Locker locker (m_debugged_process_mutex);
-        m_debugged_process_sp.reset();
-    }
-#endif
-
     // Close the pipe to the inferior terminal i/o if we launched it
-    // and set one up.  Otherwise, 'k' and its flush of stdio could
-    // end up waiting on a thread join that will never end.  Consider
-    // adding a timeout to the connection thread join call so we
-    // can avoid that scenario altogether.
+    // and set one up.
     MaybeCloseInferiorTerminalConnection ();
 
     // We are ready to exit the debug monitor.
@@ -725,7 +838,7 @@ GDBRemoteCommunicationServerLLGS::HandleInferiorState_Stopped (NativeProcessProt
             break;
         default:
             // In all other cases, send the stop reason.
-            PacketResult result = SendStopReasonForState (StateType::eStateStopped, false);
+            PacketResult result = SendStopReasonForState(StateType::eStateStopped);
             if (result != PacketResult::Success)
             {
                 if (log)
@@ -748,21 +861,30 @@ GDBRemoteCommunicationServerLLGS::ProcessStateChanged (NativeProcessProtocol *pr
                 StateAsCString (state));
     }
 
-    // Make sure we get all of the pending stdout/stderr from the inferior
-    // and send it to the lldb host before we send the state change
-    // notification
-    m_stdio_communication.SynchronizeWithReadThread();
-
     switch (state)
     {
-    case StateType::eStateExited:
-        HandleInferiorState_Exited (process);
+    case StateType::eStateRunning:
+        StartSTDIOForwarding();
         break;
 
     case StateType::eStateStopped:
+        // Make sure we get all of the pending stdout/stderr from the inferior
+        // and send it to the lldb host before we send the state change
+        // notification
+        SendProcessOutput();
+        // Then stop the forwarding, so that any late output (see llvm.org/pr25652) does not
+        // interfere with our protocol.
+        StopSTDIOForwarding();
         HandleInferiorState_Stopped (process);
         break;
 
+    case StateType::eStateExited:
+        // Same as above
+        SendProcessOutput();
+        StopSTDIOForwarding();
+        HandleInferiorState_Exited (process);
+        break;
+
     default:
         if (log)
         {
@@ -796,7 +918,6 @@ GDBRemoteCommunicationServerLLGS::DataAvailableCallback ()
             if(log)
                 log->Printf("GDBRemoteCommunicationServerLLGS::%s handshake with client failed, exiting",
                         __FUNCTION__);
-            m_read_handle_up.reset();
             m_mainloop.RequestTermination();
             return;
         }
@@ -817,7 +938,6 @@ GDBRemoteCommunicationServerLLGS::DataAvailableCallback ()
             if(log)
                 log->Printf("GDBRemoteCommunicationServerLLGS::%s processing a packet failed: %s",
                         __FUNCTION__, error.AsCString());
-            m_read_handle_up.reset();
             m_mainloop.RequestTermination();
             break;
         }
@@ -831,7 +951,7 @@ GDBRemoteCommunicationServerLLGS::InitializeConnection (std::unique_ptr<Connecti
     GDBRemoteCommunicationServer::SetConnection(connection.release());
 
     Error error;
-    m_read_handle_up = m_mainloop.RegisterReadObject(read_object_sp,
+    m_network_handle_up = m_mainloop.RegisterReadObject(read_object_sp,
             [this] (MainLoopBase &) { DataAvailableCallback(); }, error);
     return error;
 }
@@ -857,7 +977,7 @@ GDBRemoteCommunicationServerLLGS::SetSTDIOFileDescriptor (int fd)
 {
     Error error;
 
-    // Set up the Read Thread for reading/handling process I/O
+    // Set up the reading/handling of process I/O
     std::unique_ptr<ConnectionFileDescriptor> conn_up (new ConnectionFileDescriptor (fd, true));
     if (!conn_up)
     {
@@ -873,29 +993,73 @@ GDBRemoteCommunicationServerLLGS::SetSTDIOFileDescriptor (int fd)
         return error;
     }
 
+    return Error();
+}
+
+void
+GDBRemoteCommunicationServerLLGS::StartSTDIOForwarding()
+{
+    // Don't forward if not connected (e.g. when attaching).
+    if (! m_stdio_communication.IsConnected())
+        return;
+
     // llgs local-process debugging may specify PTY paths, which will make these
     // file actions non-null
     // process launch -e/o will also make these file actions non-null
     // nullptr means that the traffic is expected to flow over gdb-remote protocol
-    if (
-        m_process_launch_info.GetFileActionForFD(STDOUT_FILENO) == nullptr ||
-        m_process_launch_info.GetFileActionForFD(STDERR_FILENO) == nullptr
-        )
+    if ( m_process_launch_info.GetFileActionForFD(STDOUT_FILENO) &&
+         m_process_launch_info.GetFileActionForFD(STDERR_FILENO))
+        return;
+
+    Error error;
+    lldbassert(! m_stdio_handle_up);
+    m_stdio_handle_up = m_mainloop.RegisterReadObject(
+            m_stdio_communication.GetConnection()->GetReadObject(),
+            [this] (MainLoopBase &) { SendProcessOutput(); }, error);
+
+    if (! m_stdio_handle_up)
     {
-        // output from the process must be forwarded over gdb-remote
-        // create a thread to read the handle and send the data
-        m_stdio_communication.SetReadThreadBytesReceivedCallback (STDIOReadThreadBytesReceived, this);
-        m_stdio_communication.StartReadThread();
+        // Not much we can do about the failure. Log it and continue without forwarding.
+        if (Log *log = GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS))
+            log->Printf("GDBRemoteCommunicationServerLLGS::%s Failed to set up stdio forwarding: %s",
+                        __FUNCTION__, error.AsCString());
     }
+}
 
-    return error;
+void
+GDBRemoteCommunicationServerLLGS::StopSTDIOForwarding()
+{
+    m_stdio_handle_up.reset();
 }
 
 void
-GDBRemoteCommunicationServerLLGS::STDIOReadThreadBytesReceived (void *baton, const void *src, size_t src_len)
+GDBRemoteCommunicationServerLLGS::SendProcessOutput()
 {
-    GDBRemoteCommunicationServerLLGS *server = reinterpret_cast<GDBRemoteCommunicationServerLLGS*> (baton);
-    static_cast<void> (server->SendONotification (static_cast<const char *>(src), src_len));
+    char buffer[1024];
+    ConnectionStatus status;
+    Error error;
+    while (true)
+    {
+        size_t bytes_read = m_stdio_communication.Read(buffer, sizeof buffer, 0, status, &error);
+        switch (status)
+        {
+        case eConnectionStatusSuccess:
+            SendONotification(buffer, bytes_read);
+            break;
+        case eConnectionStatusLostConnection:
+        case eConnectionStatusEndOfFile:
+        case eConnectionStatusError:
+        case eConnectionStatusNoConnection:
+            if (Log *log = GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS))
+                log->Printf("GDBRemoteCommunicationServerLLGS::%s Stopping stdio forwarding as communication returned status %d (error: %s)", __FUNCTION__, status, error.AsCString());
+            m_stdio_handle_up.reset();
+            return;
+
+        case eConnectionStatusInterrupted:
+        case eConnectionStatusTimedOut:
+            return;
+        }
+    }
 }
 
 GDBRemoteCommunication::PacketResult
@@ -941,49 +1105,24 @@ GDBRemoteCommunicationServerLLGS::Handle_qC (StringExtractorGDBRemote &packet)
     return SendPacketNoLock (response.GetData(), response.GetSize());
 }
 
-bool
-GDBRemoteCommunicationServerLLGS::DebuggedProcessReaped (lldb::pid_t pid)
-{
-    // reap a process that we were debugging (but not debugserver)
-    Mutex::Locker locker (m_spawned_pids_mutex);
-    return m_spawned_pids.erase(pid) > 0;
-}
-
-bool
-GDBRemoteCommunicationServerLLGS::ReapDebuggedProcess (void *callback_baton,
-                                        lldb::pid_t pid,
-                                        bool exited,
-                                        int signal,    // Zero for no signal
-                                        int status)    // Exit value of process if signal is zero
-{
-    GDBRemoteCommunicationServerLLGS *server = (GDBRemoteCommunicationServerLLGS *)callback_baton;
-    server->DebuggedProcessReaped (pid);
-    return true;
-}
-
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_k (StringExtractorGDBRemote &packet)
 {
-    // shutdown all spawned processes
-    std::set<lldb::pid_t> spawned_pids_copy;
+    Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
 
-    // copy pids
-    {
-        Mutex::Locker locker (m_spawned_pids_mutex);
-        spawned_pids_copy.insert (m_spawned_pids.begin (), m_spawned_pids.end ());
-    }
+    StopSTDIOForwarding();
 
-    // nuke the spawned processes
-    for (auto it = spawned_pids_copy.begin (); it != spawned_pids_copy.end (); ++it)
+    if (! m_debugged_process_sp)
     {
-        lldb::pid_t spawned_pid = *it;
-        if (!KillSpawnedProcess (spawned_pid))
-        {
-            fprintf (stderr, "%s: failed to kill spawned pid %" PRIu64 ", ignoring.\n", __FUNCTION__, spawned_pid);
-        }
+        if (log)
+            log->Printf("GDBRemoteCommunicationServerLLGS::%s No debugged process found.", __FUNCTION__);
+        return PacketResult::Success;
     }
 
-    FlushInferiorOutput ();
+    Error error = m_debugged_process_sp->Kill();
+    if (error.Fail() && log)
+        log->Printf("GDBRemoteCommunicationServerLLGS::%s Failed to kill debugged process %" PRIu64 ": %s",
+                __FUNCTION__, m_debugged_process_sp->GetID(), error.AsCString());
 
     // No OK response for kill packet.
     // return SendOKResponse ();
@@ -1316,11 +1455,11 @@ GDBRemoteCommunicationServerLLGS::Handle_stop_reason (StringExtractorGDBRemote &
     if (!m_debugged_process_sp)
         return SendErrorResponse (02);
 
-    return SendStopReasonForState (m_debugged_process_sp->GetState (), true);
+    return SendStopReasonForState (m_debugged_process_sp->GetState());
 }
 
 GDBRemoteCommunication::PacketResult
-GDBRemoteCommunicationServerLLGS::SendStopReasonForState (lldb::StateType process_state, bool flush_on_exit)
+GDBRemoteCommunicationServerLLGS::SendStopReasonForState (lldb::StateType process_state)
 {
     Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
 
@@ -1349,8 +1488,6 @@ GDBRemoteCommunicationServerLLGS::SendStopReasonForState (lldb::StateType proces
         case eStateInvalid:
         case eStateUnloaded:
         case eStateExited:
-            if (flush_on_exit)
-                FlushInferiorOutput ();
             return SendWResponse(m_debugged_process_sp.get());
 
         default:
@@ -1448,8 +1585,8 @@ GDBRemoteCommunicationServerLLGS::Handle_qRegisterInfo (StringExtractorGDBRemote
         response.PutChar (';');
     }
 
-    if (reg_info->kinds[RegisterKind::eRegisterKindGCC] != LLDB_INVALID_REGNUM)
-        response.Printf ("gcc:%" PRIu32 ";", reg_info->kinds[RegisterKind::eRegisterKindGCC]);
+    if (reg_info->kinds[RegisterKind::eRegisterKindEHFrame] != LLDB_INVALID_REGNUM)
+        response.Printf ("ehframe:%" PRIu32 ";", reg_info->kinds[RegisterKind::eRegisterKindEHFrame]);
 
     if (reg_info->kinds[RegisterKind::eRegisterKindDWARF] != LLDB_INVALID_REGNUM)
         response.Printf ("dwarf:%" PRIu32 ";", reg_info->kinds[RegisterKind::eRegisterKindDWARF]);
@@ -1856,7 +1993,7 @@ GDBRemoteCommunicationServerLLGS::Handle_interrupt (StringExtractorGDBRemote &pa
 }
 
 GDBRemoteCommunication::PacketResult
-GDBRemoteCommunicationServerLLGS::Handle_m (StringExtractorGDBRemote &packet)
+GDBRemoteCommunicationServerLLGS::Handle_memory_read(StringExtractorGDBRemote &packet)
 {
     Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
 
@@ -1889,7 +2026,7 @@ GDBRemoteCommunicationServerLLGS::Handle_m (StringExtractorGDBRemote &packet)
     {
         if (log)
             log->Printf ("GDBRemoteCommunicationServerLLGS::%s nothing to read: zero-length packet", __FUNCTION__);
-        return PacketResult::Success;
+        return SendOKResponse();
     }
 
     // Allocate the response buffer.
@@ -1916,8 +2053,16 @@ GDBRemoteCommunicationServerLLGS::Handle_m (StringExtractorGDBRemote &packet)
     }
 
     StreamGDBRemote response;
-    for (size_t i = 0; i < bytes_read; ++i)
-        response.PutHex8(buf[i]);
+    packet.SetFilePos(0);
+    char kind = packet.GetChar('?');
+    if (kind == 'x')
+        response.PutEscapedBytes(buf.data(), byte_count);
+    else
+    {
+        assert(kind == 'm');
+        for (size_t i = 0; i < bytes_read; ++i)
+            response.PutHex8(buf[i]);
+    }
 
     return SendPacketNoLock(response.GetData(), response.GetSize());
 }
@@ -2108,6 +2253,7 @@ GDBRemoteCommunicationServerLLGS::Handle_Z (StringExtractorGDBRemote &packet)
 
     bool want_breakpoint = true;
     bool want_hardware = false;
+    uint32_t watch_flags = 0;
 
     const GDBStoppointType stoppoint_type =
         GDBStoppointType(packet.GetS32 (eStoppointInvalid));
@@ -2118,10 +2264,13 @@ GDBRemoteCommunicationServerLLGS::Handle_Z (StringExtractorGDBRemote &packet)
         case eBreakpointHardware:
             want_hardware = true;  want_breakpoint = true;  break;
         case eWatchpointWrite:
+            watch_flags = 1;
             want_hardware = true;  want_breakpoint = false; break;
         case eWatchpointRead:
+            watch_flags = 2;
             want_hardware = true;  want_breakpoint = false; break;
         case eWatchpointReadWrite:
+            watch_flags = 3;
             want_hardware = true;  want_breakpoint = false; break;
         case eStoppointInvalid:
             return SendIllFormedResponse(packet, "Z packet had invalid software/hardware specifier");
@@ -2161,11 +2310,6 @@ GDBRemoteCommunicationServerLLGS::Handle_Z (StringExtractorGDBRemote &packet)
     }
     else
     {
-        uint32_t watch_flags =
-            stoppoint_type == eWatchpointWrite
-            ? 0x1  // Write
-            : 0x3; // ReadWrite
-
         // Try to set the watchpoint.
         const Error error = m_debugged_process_sp->SetWatchpoint (
                 addr, size, watch_flags, want_hardware);
@@ -2555,7 +2699,7 @@ GDBRemoteCommunicationServerLLGS::Handle_vAttach (StringExtractorGDBRemote &pack
     }
 
     // Notify we attached by sending a stop packet.
-    return SendStopReasonForState (m_debugged_process_sp->GetState (), true);
+    return SendStopReasonForState (m_debugged_process_sp->GetState ());
 }
 
 GDBRemoteCommunication::PacketResult
@@ -2563,8 +2707,7 @@ GDBRemoteCommunicationServerLLGS::Handle_D (StringExtractorGDBRemote &packet)
 {
     Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_PROCESS));
 
-    // Scope for mutex locker.
-    Mutex::Locker locker (m_spawned_pids_mutex);
+    StopSTDIOForwarding();
 
     // Fail if we don't have a current process.
     if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
@@ -2574,14 +2717,6 @@ GDBRemoteCommunicationServerLLGS::Handle_D (StringExtractorGDBRemote &packet)
         return SendErrorResponse (0x15);
     }
 
-    if (m_spawned_pids.find(m_debugged_process_sp->GetID ()) == m_spawned_pids.end())
-    {
-        if (log)
-            log->Printf ("GDBRemoteCommunicationServerLLGS::%s failed to find PID %" PRIu64 " in spawned pids list",
-                         __FUNCTION__, m_debugged_process_sp->GetID ());
-        return SendErrorResponse (0x1);
-    }
-
     lldb::pid_t pid = LLDB_INVALID_PROCESS_ID;
 
     // Consume the ';' after D.
@@ -2603,11 +2738,6 @@ GDBRemoteCommunicationServerLLGS::Handle_D (StringExtractorGDBRemote &packet)
         return SendIllFormedResponse (packet, "Invalid pid");
     }
 
-    if (m_stdio_communication.IsConnected ())
-    {
-        m_stdio_communication.StopReadThread ();
-    }
-
     const Error error = m_debugged_process_sp->Detach ();
     if (error.Fail ())
     {
@@ -2617,7 +2747,6 @@ GDBRemoteCommunicationServerLLGS::Handle_D (StringExtractorGDBRemote &packet)
         return SendErrorResponse (0x01);
     }
 
-    m_spawned_pids.erase (m_debugged_process_sp->GetID ());
     return SendOKResponse ();
 }
 
@@ -2638,6 +2767,38 @@ GDBRemoteCommunicationServerLLGS::Handle_qThreadStopInfo (StringExtractorGDBRemo
 }
 
 GDBRemoteCommunication::PacketResult
+GDBRemoteCommunicationServerLLGS::Handle_jThreadsInfo (StringExtractorGDBRemote &)
+{
+    Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_PROCESS | LIBLLDB_LOG_THREAD));
+
+    // Ensure we have a debugged process.
+    if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
+        return SendErrorResponse (50);
+
+    if (log)
+        log->Printf ("GDBRemoteCommunicationServerLLGS::%s preparing packet for pid %" PRIu64,
+                __FUNCTION__, m_debugged_process_sp->GetID());
+
+
+    StreamString response;
+    const bool threads_with_valid_stop_info_only = false;
+    JSONArray::SP threads_array_sp = GetJSONThreadsInfo(*m_debugged_process_sp,
+                                                        threads_with_valid_stop_info_only);
+    if (! threads_array_sp)
+    {
+        if (log)
+            log->Printf ("GDBRemoteCommunicationServerLLGS::%s failed to prepare a packet for pid %" PRIu64,
+                    __FUNCTION__, m_debugged_process_sp->GetID());
+        return SendErrorResponse(52);
+    }
+
+    threads_array_sp->Write(response);
+    StreamGDBRemote escaped_response;
+    escaped_response.PutEscapedBytes(response.GetData(), response.GetSize());
+    return SendPacketNoLock (escaped_response.GetData(), escaped_response.GetSize());
+}
+
+GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_qWatchpointSupportInfo (StringExtractorGDBRemote &packet)
 {
     // Fail if we don't have a current process.
@@ -2686,21 +2847,6 @@ GDBRemoteCommunicationServerLLGS::Handle_qFileLoadAddress (StringExtractorGDBRem
 }
 
 void
-GDBRemoteCommunicationServerLLGS::FlushInferiorOutput ()
-{
-    // If we're not monitoring an inferior's terminal, ignore this.
-    if (!m_stdio_communication.IsConnected())
-        return;
-
-    Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS | LIBLLDB_LOG_THREAD));
-    if (log)
-        log->Printf ("GDBRemoteCommunicationServerLLGS::%s() called", __FUNCTION__);
-
-    // FIXME implement a timeout on the join.
-    m_stdio_communication.JoinReadThread();
-}
-
-void
 GDBRemoteCommunicationServerLLGS::MaybeCloseInferiorTerminalConnection ()
 {
     Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.h b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.h
index 29f3fdebcfb0c..f16057781ddc4 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.h
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.h
@@ -42,9 +42,6 @@ public:
     //------------------------------------------------------------------
     GDBRemoteCommunicationServerLLGS(const lldb::PlatformSP& platform_sp, MainLoop &mainloop);
 
-    virtual
-    ~GDBRemoteCommunicationServerLLGS();
-
     //------------------------------------------------------------------
     /// Specify the program to launch and its arguments.
     ///
@@ -119,12 +116,15 @@ public:
 protected:
     lldb::PlatformSP m_platform_sp;
     MainLoop &m_mainloop;
-    MainLoop::ReadHandleUP m_read_handle_up;
+    MainLoop::ReadHandleUP m_network_handle_up;
     lldb::tid_t m_current_tid;
     lldb::tid_t m_continue_tid;
     Mutex m_debugged_process_mutex;
     NativeProcessProtocolSP m_debugged_process_sp;
+
     Communication m_stdio_communication;
+    MainLoop::ReadHandleUP m_stdio_handle_up;
+
     lldb::StateType m_inferior_prev_state;
     lldb::DataBufferSP m_active_auxv_buffer_sp;
     Mutex m_saved_registers_mutex;
@@ -142,7 +142,7 @@ protected:
     SendStopReplyPacketForThread (lldb::tid_t tid);
 
     PacketResult
-    SendStopReasonForState (lldb::StateType process_state, bool flush_on_exit);
+    SendStopReasonForState (lldb::StateType process_state);
 
     PacketResult
     Handle_k (StringExtractorGDBRemote &packet);
@@ -201,8 +201,9 @@ protected:
     PacketResult
     Handle_interrupt (StringExtractorGDBRemote &packet);
 
+    // Handles $m and $x packets.
     PacketResult
-    Handle_m (StringExtractorGDBRemote &packet);
+    Handle_memory_read (StringExtractorGDBRemote &packet);
 
     PacketResult
     Handle_M (StringExtractorGDBRemote &packet);
@@ -241,6 +242,9 @@ protected:
     Handle_qThreadStopInfo (StringExtractorGDBRemote &packet);
 
     PacketResult
+    Handle_jThreadsInfo (StringExtractorGDBRemote &packet);
+
+    PacketResult
     Handle_qWatchpointSupportInfo (StringExtractorGDBRemote &packet);
 
     PacketResult
@@ -261,32 +265,16 @@ protected:
     Error
     SetSTDIOFileDescriptor (int fd);
 
-    static void
-    STDIOReadThreadBytesReceived (void *baton, const void *src, size_t src_len);
-
     FileSpec
     FindModuleFile (const std::string& module_path, const ArchSpec& arch) override;
 
 private:
-    bool
-    DebuggedProcessReaped (lldb::pid_t pid);
-
-    static bool
-    ReapDebuggedProcess (void *callback_baton,
-                         lldb::pid_t pid,
-                         bool exited,
-                         int signal,
-                         int status);
-
     void
     HandleInferiorState_Exited (NativeProcessProtocol *process);
 
     void
     HandleInferiorState_Stopped (NativeProcessProtocol *process);
 
-    void
-    FlushInferiorOutput ();
-
     NativeThreadProtocolSP
     GetThreadFromSuffix (StringExtractorGDBRemote &packet);
 
@@ -305,6 +293,15 @@ private:
     void
     DataAvailableCallback ();
 
+    void
+    SendProcessOutput ();
+
+    void
+    StartSTDIOForwarding();
+
+    void
+    StopSTDIOForwarding();
+
     //------------------------------------------------------------------
     // For GDBRemoteCommunicationServerLLGS only
     //------------------------------------------------------------------
diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerPlatform.cpp b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerPlatform.cpp
index 1205049db3fb8..f88ac12475260 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerPlatform.cpp
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerPlatform.cpp
@@ -15,19 +15,26 @@
 // C++ Includes
 #include <cstring>
 #include <chrono>
+#include <mutex>
+#include <sstream>
 
 // Other libraries and framework includes
+#include "llvm/Support/FileSystem.h"
+
 #include "lldb/Core/Log.h"
+#include "lldb/Core/StreamGDBRemote.h"
 #include "lldb/Core/StreamString.h"
 #include "lldb/Core/StructuredData.h"
 #include "lldb/Host/Config.h"
 #include "lldb/Host/ConnectionFileDescriptor.h"
 #include "lldb/Host/Host.h"
+#include "lldb/Host/HostInfo.h"
 #include "lldb/Host/StringConvert.h"
 #include "lldb/Target/FileAction.h"
 #include "lldb/Target/Platform.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/UnixSignals.h"
+#include "lldb/Utility/JSON.h"
 
 // Project includes
 #include "Utility/StringExtractorGDBRemote.h"
@@ -40,18 +47,29 @@ using namespace lldb_private::process_gdb_remote;
 //----------------------------------------------------------------------
 // GDBRemoteCommunicationServerPlatform constructor
 //----------------------------------------------------------------------
-GDBRemoteCommunicationServerPlatform::GDBRemoteCommunicationServerPlatform() :
+GDBRemoteCommunicationServerPlatform::GDBRemoteCommunicationServerPlatform(const Socket::SocketProtocol socket_protocol,
+                                                                           const char* socket_scheme) :
     GDBRemoteCommunicationServerCommon ("gdb-remote.server", "gdb-remote.server.rx_packet"),
+    m_socket_protocol(socket_protocol),
+    m_socket_scheme(socket_scheme),
+    m_spawned_pids_mutex (Mutex::eMutexTypeRecursive),
     m_platform_sp (Platform::GetHostPlatform ()),
     m_port_map (),
     m_port_offset(0)
 {
+    m_pending_gdb_server.pid = LLDB_INVALID_PROCESS_ID;
+    m_pending_gdb_server.port = 0;
+
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_qC,
                                   &GDBRemoteCommunicationServerPlatform::Handle_qC);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_qGetWorkingDir,
                                   &GDBRemoteCommunicationServerPlatform::Handle_qGetWorkingDir);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_qLaunchGDBServer,
                                   &GDBRemoteCommunicationServerPlatform::Handle_qLaunchGDBServer);
+    RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_qQueryGDBServer,
+                                  &GDBRemoteCommunicationServerPlatform::Handle_qQueryGDBServer);
+    RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_qKillSpawnedProcess,
+                                  &GDBRemoteCommunicationServerPlatform::Handle_qKillSpawnedProcess);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_qProcessInfo,
                                   &GDBRemoteCommunicationServerPlatform::Handle_qProcessInfo);
     RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_QSetWorkingDir,
@@ -78,38 +96,16 @@ GDBRemoteCommunicationServerPlatform::~GDBRemoteCommunicationServerPlatform()
 {
 }
 
-GDBRemoteCommunication::PacketResult
-GDBRemoteCommunicationServerPlatform::Handle_qLaunchGDBServer (StringExtractorGDBRemote &packet)
+Error
+GDBRemoteCommunicationServerPlatform::LaunchGDBServer(const lldb_private::Args& args,
+                                                      std::string hostname,
+                                                      lldb::pid_t& pid,
+                                                      uint16_t& port,
+                                                      std::string& socket_name)
 {
-#ifdef _WIN32
-    return SendErrorResponse(9);
-#else
-    // Spawn a local debugserver as a platform so we can then attach or launch
-    // a process...
-
-    Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM));
-    if (log)
-        log->Printf ("GDBRemoteCommunicationServerPlatform::%s() called", __FUNCTION__);
-
-    // Sleep and wait a bit for debugserver to start to listen...
-    ConnectionFileDescriptor file_conn;
-    std::string hostname;
-    // TODO: /tmp/ should not be hardcoded. User might want to override /tmp
-    // with the TMPDIR environment variable
-    packet.SetFilePos(::strlen ("qLaunchGDBServer;"));
-    std::string name;
-    std::string value;
-    uint16_t port = UINT16_MAX;
-    while (packet.GetNameColonValue(name, value))
-    {
-        if (name.compare ("host") == 0)
-            hostname.swap(value);
-        else if (name.compare ("port") == 0)
-            port = StringConvert::ToUInt32(value.c_str(), 0, 0);
-    }
     if (port == UINT16_MAX)
         port = GetNextAvailablePort();
-
+    
     // Spawn a new thread to accept the port that gets bound after
     // binding to port 0 (zero).
 
@@ -120,6 +116,8 @@ GDBRemoteCommunicationServerPlatform::Handle_qLaunchGDBServer (StringExtractorGD
     ProcessLaunchInfo debugserver_launch_info;
     if (hostname.empty())
         hostname = "127.0.0.1";
+
+    Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM));
     if (log)
         log->Printf("Launching debugserver with: %s:%u...", hostname.c_str(), port);
 
@@ -133,53 +131,210 @@ GDBRemoteCommunicationServerPlatform::Handle_qLaunchGDBServer (StringExtractorGD
     int platform_port;
     std::string platform_path;
     bool ok = UriParser::Parse(GetConnection()->GetURI().c_str(), platform_scheme, platform_ip, platform_port, platform_path);
+    UNUSED_IF_ASSERT_DISABLED(ok);
     assert(ok);
-    Error error = StartDebugserverProcess (
-                                     platform_ip.c_str(),
-                                     port,
-                                     debugserver_launch_info,
-                                     port);
 
-    lldb::pid_t debugserver_pid = debugserver_launch_info.GetProcessID();
+    std::ostringstream url;
+    uint16_t* port_ptr = &port;
+    if (m_socket_protocol == Socket::ProtocolTcp)
+        url << platform_ip << ":" << port;
+    else
+    {
+        socket_name = GetDomainSocketPath("gdbserver").GetPath();
+        url << socket_name;
+        port_ptr = nullptr;
+    }
 
+    Error error = StartDebugserverProcess (url.str().c_str(),
+                                           nullptr,
+                                           debugserver_launch_info,
+                                           port_ptr,
+                                           args);
 
-    if (debugserver_pid != LLDB_INVALID_PROCESS_ID)
+    pid = debugserver_launch_info.GetProcessID();
+    if (pid != LLDB_INVALID_PROCESS_ID)
     {
         Mutex::Locker locker (m_spawned_pids_mutex);
-        m_spawned_pids.insert(debugserver_pid);
+        m_spawned_pids.insert(pid);
         if (port > 0)
-            AssociatePortWithProcess(port, debugserver_pid);
+            AssociatePortWithProcess(port, pid);
     }
     else
     {
         if (port > 0)
-            FreePort (port);
+            FreePort(port);
+    }
+    return error;
+}
+
+GDBRemoteCommunication::PacketResult
+GDBRemoteCommunicationServerPlatform::Handle_qLaunchGDBServer (StringExtractorGDBRemote &packet)
+{
+#ifdef _WIN32
+    return SendErrorResponse(9);
+#else
+    // Spawn a local debugserver as a platform so we can then attach or launch
+    // a process...
+
+    Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM));
+    if (log)
+        log->Printf ("GDBRemoteCommunicationServerPlatform::%s() called", __FUNCTION__);
+
+    ConnectionFileDescriptor file_conn;
+    std::string hostname;
+    packet.SetFilePos(::strlen ("qLaunchGDBServer;"));
+    std::string name;
+    std::string value;
+    uint16_t port = UINT16_MAX;
+    while (packet.GetNameColonValue(name, value))
+    {
+        if (name.compare ("host") == 0)
+            hostname.swap(value);
+        else if (name.compare ("port") == 0)
+            port = StringConvert::ToUInt32(value.c_str(), 0, 0);
     }
 
-    if (error.Success())
+    lldb::pid_t debugserver_pid = LLDB_INVALID_PROCESS_ID;
+    std::string socket_name;
+    Error error = LaunchGDBServer(Args(), hostname, debugserver_pid, port, socket_name);
+    if (error.Fail())
     {
         if (log)
-            log->Printf ("GDBRemoteCommunicationServerPlatform::%s() debugserver launched successfully as pid %" PRIu64, __FUNCTION__, debugserver_pid);
+            log->Printf("GDBRemoteCommunicationServerPlatform::%s() debugserver launch failed: %s", __FUNCTION__, error.AsCString ());
+        return SendErrorResponse(9);
+    }
 
-        char response[256];
-        const int response_len = ::snprintf (response, sizeof(response), "pid:%" PRIu64 ";port:%u;", debugserver_pid, port + m_port_offset);
-        assert (response_len < (int)sizeof(response));
-        PacketResult packet_result = SendPacketNoLock (response, response_len);
+    if (log)
+        log->Printf ("GDBRemoteCommunicationServerPlatform::%s() debugserver launched successfully as pid %" PRIu64, __FUNCTION__, debugserver_pid);
 
-        if (packet_result != PacketResult::Success)
+    StreamGDBRemote response;
+    response.Printf("pid:%" PRIu64 ";port:%u;", debugserver_pid, port + m_port_offset);
+    if (!socket_name.empty())
+    {
+        response.PutCString("socket_name:");
+        response.PutCStringAsRawHex8(socket_name.c_str());
+        response.PutChar(';');
+    }
+
+    PacketResult packet_result = SendPacketNoLock(response.GetData(), response.GetSize());
+    if (packet_result != PacketResult::Success)
+    {
+        if (debugserver_pid != LLDB_INVALID_PROCESS_ID)
+            ::kill (debugserver_pid, SIGINT);
+    }
+    return packet_result;
+#endif
+}
+
+GDBRemoteCommunication::PacketResult
+GDBRemoteCommunicationServerPlatform::Handle_qQueryGDBServer (StringExtractorGDBRemote &packet)
+{
+    if (m_pending_gdb_server.pid == LLDB_INVALID_PROCESS_ID)
+        return SendErrorResponse(4);
+
+    JSONObject::SP server_sp = std::make_shared<JSONObject>();
+    server_sp->SetObject("port", std::make_shared<JSONNumber>(m_pending_gdb_server.port));
+    if (!m_pending_gdb_server.socket_name.empty())
+        server_sp->SetObject("socket_name",
+                             std::make_shared<JSONString>(m_pending_gdb_server.socket_name.c_str()));
+
+    JSONArray server_list;
+    server_list.AppendObject(server_sp);
+
+    StreamGDBRemote response;
+    server_list.Write(response);
+
+    StreamGDBRemote escaped_response;
+    escaped_response.PutEscapedBytes(response.GetData(), response.GetSize());
+    return SendPacketNoLock(escaped_response.GetData(), escaped_response.GetSize());
+}
+
+GDBRemoteCommunication::PacketResult
+GDBRemoteCommunicationServerPlatform::Handle_qKillSpawnedProcess (StringExtractorGDBRemote &packet)
+{
+    packet.SetFilePos(::strlen ("qKillSpawnedProcess:"));
+
+    lldb::pid_t pid = packet.GetU64(LLDB_INVALID_PROCESS_ID);
+
+    // verify that we know anything about this pid.
+    // Scope for locker
+    {
+        Mutex::Locker locker (m_spawned_pids_mutex);
+        if (m_spawned_pids.find(pid) == m_spawned_pids.end())
         {
-            if (debugserver_pid != LLDB_INVALID_PROCESS_ID)
-                ::kill (debugserver_pid, SIGINT);
+            // not a pid we know about
+            return SendErrorResponse (10);
         }
-        return packet_result;
     }
+
+    // go ahead and attempt to kill the spawned process
+    if (KillSpawnedProcess (pid))
+        return SendOKResponse ();
     else
+        return SendErrorResponse (11);
+}
+
+bool
+GDBRemoteCommunicationServerPlatform::KillSpawnedProcess (lldb::pid_t pid)
+{
+    // make sure we know about this process
     {
-        if (log)
-            log->Printf ("GDBRemoteCommunicationServerPlatform::%s() debugserver launch failed: %s", __FUNCTION__, error.AsCString ());
+        Mutex::Locker locker (m_spawned_pids_mutex);
+        if (m_spawned_pids.find(pid) == m_spawned_pids.end())
+            return false;
     }
-    return SendErrorResponse (9);
-#endif
+
+    // first try a SIGTERM (standard kill)
+    Host::Kill (pid, SIGTERM);
+
+    // check if that worked
+    for (size_t i=0; i<10; ++i)
+    {
+        {
+            Mutex::Locker locker (m_spawned_pids_mutex);
+            if (m_spawned_pids.find(pid) == m_spawned_pids.end())
+            {
+                // it is now killed
+                return true;
+            }
+        }
+        usleep (10000);
+    }
+
+    // check one more time after the final usleep
+    {
+        Mutex::Locker locker (m_spawned_pids_mutex);
+        if (m_spawned_pids.find(pid) == m_spawned_pids.end())
+            return true;
+    }
+
+    // the launched process still lives.  Now try killing it again,
+    // this time with an unblockable signal.
+    Host::Kill (pid, SIGKILL);
+
+    for (size_t i=0; i<10; ++i)
+    {
+        {
+            Mutex::Locker locker (m_spawned_pids_mutex);
+            if (m_spawned_pids.find(pid) == m_spawned_pids.end())
+            {
+                // it is now killed
+                return true;
+            }
+        }
+        usleep (10000);
+    }
+
+    // check one more time after the final usleep
+    // Scope for locker
+    {
+        Mutex::Locker locker (m_spawned_pids_mutex);
+        if (m_spawned_pids.find(pid) == m_spawned_pids.end())
+            return true;
+    }
+
+    // no luck - the process still lives
+    return false;
 }
 
 GDBRemoteCommunication::PacketResult
@@ -402,8 +557,48 @@ GDBRemoteCommunicationServerPlatform::FreePortForProcess (lldb::pid_t pid)
     return false;
 }
 
+const FileSpec&
+GDBRemoteCommunicationServerPlatform::GetDomainSocketDir()
+{
+    static FileSpec g_domainsocket_dir;
+    static std::once_flag g_once_flag;
+
+    std::call_once(g_once_flag, []() {
+        const char* domainsocket_dir_env = ::getenv("LLDB_DEBUGSERVER_DOMAINSOCKET_DIR");
+        if (domainsocket_dir_env != nullptr)
+            g_domainsocket_dir = FileSpec(domainsocket_dir_env, false);
+        else
+            HostInfo::GetLLDBPath(ePathTypeLLDBTempSystemDir, g_domainsocket_dir);
+    });
+
+    return g_domainsocket_dir;
+}
+
+FileSpec
+GDBRemoteCommunicationServerPlatform::GetDomainSocketPath(const char* prefix)
+{
+    llvm::SmallString<PATH_MAX> socket_path;
+    llvm::SmallString<PATH_MAX> socket_name((llvm::StringRef(prefix) + ".%%%%%%").str());
+
+    FileSpec socket_path_spec(GetDomainSocketDir());
+    socket_path_spec.AppendPathComponent(socket_name.c_str());
+
+    llvm::sys::fs::createUniqueFile(socket_path_spec.GetCString(), socket_path);
+    return FileSpec(socket_path.c_str(), false);
+}
+
 void
-GDBRemoteCommunicationServerPlatform::SetPortOffset (uint16_t port_offset)
+GDBRemoteCommunicationServerPlatform::SetPortOffset(uint16_t port_offset)
 {
     m_port_offset = port_offset;
 }
+
+void
+GDBRemoteCommunicationServerPlatform::SetPendingGdbServer(lldb::pid_t pid,
+                                                          uint16_t port,
+                                                          const std::string& socket_name)
+{
+    m_pending_gdb_server.pid = pid;
+    m_pending_gdb_server.port = port;
+    m_pending_gdb_server.socket_name = socket_name;
+}
diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerPlatform.h b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerPlatform.h
index 5c011371a3ebe..1fe7207d2bc2e 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerPlatform.h
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerPlatform.h
@@ -10,7 +10,15 @@
 #ifndef liblldb_GDBRemoteCommunicationServerPlatform_h_
 #define liblldb_GDBRemoteCommunicationServerPlatform_h_
 
+// C Includes
+// C++ Includes
+#include <map>
+#include <set>
+
+// Other libraries and framework includes
+// Project includes
 #include "GDBRemoteCommunicationServerCommon.h"
+#include "lldb/Host/Socket.h"
 
 namespace lldb_private {
 namespace process_gdb_remote {
@@ -21,10 +29,10 @@ class GDBRemoteCommunicationServerPlatform :
 public:
     typedef std::map<uint16_t, lldb::pid_t> PortMap;
 
-    GDBRemoteCommunicationServerPlatform();
+    GDBRemoteCommunicationServerPlatform(const Socket::SocketProtocol socket_protocol,
+                                         const char* socket_scheme);
 
-    virtual
-    ~GDBRemoteCommunicationServerPlatform();
+    ~GDBRemoteCommunicationServerPlatform() override;
 
     Error
     LaunchProcess () override;
@@ -58,16 +66,40 @@ public:
     void
     SetPortOffset (uint16_t port_offset);
 
+    void
+    SetInferiorArguments (const lldb_private::Args& args);
+
+    Error
+    LaunchGDBServer(const lldb_private::Args& args,
+                    std::string hostname,
+                    lldb::pid_t& pid,
+                    uint16_t& port,
+                    std::string& socket_name);
+
+    void
+    SetPendingGdbServer(lldb::pid_t pid, uint16_t port, const std::string& socket_name);
+
 protected:
+    const Socket::SocketProtocol m_socket_protocol;
+    const std::string m_socket_scheme;
+    Mutex m_spawned_pids_mutex;
+    std::set<lldb::pid_t> m_spawned_pids;
     lldb::PlatformSP m_platform_sp;
 
     PortMap m_port_map;
     uint16_t m_port_offset;
+    struct { lldb::pid_t pid; uint16_t port; std::string socket_name; } m_pending_gdb_server;
 
     PacketResult
     Handle_qLaunchGDBServer (StringExtractorGDBRemote &packet);
 
     PacketResult
+    Handle_qQueryGDBServer (StringExtractorGDBRemote &packet);
+
+    PacketResult
+    Handle_qKillSpawnedProcess (StringExtractorGDBRemote &packet);
+
+    PacketResult
     Handle_qProcessInfo (StringExtractorGDBRemote &packet);
 
     PacketResult
@@ -84,6 +116,9 @@ protected:
 
 private:
     bool
+    KillSpawnedProcess (lldb::pid_t pid);
+
+    bool
     DebugserverProcessReaped (lldb::pid_t pid);
 
     static bool
@@ -93,13 +128,16 @@ private:
                             int signal,
                             int status);
 
-    //------------------------------------------------------------------
-    // For GDBRemoteCommunicationServerPlatform only
-    //------------------------------------------------------------------
+    static const FileSpec&
+    GetDomainSocketDir();
+
+    static FileSpec
+    GetDomainSocketPath(const char* prefix);
+
     DISALLOW_COPY_AND_ASSIGN (GDBRemoteCommunicationServerPlatform);
 };
 
 } // namespace process_gdb_remote
 } // namespace lldb_private
 
-#endif  // liblldb_GDBRemoteCommunicationServerPlatform_h_
+#endif // liblldb_GDBRemoteCommunicationServerPlatform_h_
diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp b/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
index f5f134e80d6ab..b0a1eaaeb79c0 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
@@ -17,9 +17,6 @@
 #include "lldb/Core/RegisterValue.h"
 #include "lldb/Core/Scalar.h"
 #include "lldb/Core/StreamString.h"
-#ifndef LLDB_DISABLE_PYTHON
-#include "lldb/Interpreter/PythonDataObjects.h"
-#endif
 #include "lldb/Target/ExecutionContext.h"
 #include "lldb/Target/Target.h"
 #include "lldb/Utility/Utils.h"
@@ -28,8 +25,8 @@
 #include "ProcessGDBRemote.h"
 #include "ProcessGDBRemoteLog.h"
 #include "ThreadGDBRemote.h"
-#include "Utility/ARM_GCC_Registers.h"
 #include "Utility/ARM_DWARF_Registers.h"
+#include "Utility/ARM_ehframe_Registers.h"
 
 using namespace lldb;
 using namespace lldb_private;
@@ -150,6 +147,52 @@ GDBRemoteRegisterContext::PrivateSetRegisterValue (uint32_t reg, StringExtractor
     return success;
 }
 
+bool
+GDBRemoteRegisterContext::PrivateSetRegisterValue (uint32_t reg, uint64_t new_reg_val)
+{
+    const RegisterInfo *reg_info = GetRegisterInfoAtIndex (reg);
+    if (reg_info == NULL)
+        return false;
+
+    // Early in process startup, we can get a thread that has an invalid byte order
+    // because the process hasn't been completely set up yet (see the ctor where the
+    // byte order is setfrom the process).  If that's the case, we can't set the
+    // value here.
+    if (m_reg_data.GetByteOrder() == eByteOrderInvalid)
+    {
+        return false;
+    }
+
+    // Invalidate if needed
+    InvalidateIfNeeded (false);
+
+    DataBufferSP buffer_sp (new DataBufferHeap (&new_reg_val, sizeof (new_reg_val)));
+    DataExtractor data (buffer_sp, endian::InlHostByteOrder(), sizeof (void*));
+
+    // If our register context and our register info disagree, which should never happen, don't
+    // overwrite past the end of the buffer.
+    if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size)
+        return false;
+
+    // Grab a pointer to where we are going to put this register
+    uint8_t *dst = const_cast<uint8_t*>(m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size));
+
+    if (dst == NULL)
+        return false;
+
+
+    if (data.CopyByteOrderedData (0,                            // src offset
+                                  reg_info->byte_size,          // src length
+                                  dst,                          // dst
+                                  reg_info->byte_size,          // dst length
+                                  m_reg_data.GetByteOrder()))   // dst byte order
+    {
+        SetRegisterIsValid (reg, true);
+        return true;
+    }
+    return false;
+}
+
 // Helper function for GDBRemoteRegisterContext::ReadRegisterBytes().
 bool
 GDBRemoteRegisterContext::GetPrimordialRegister(const RegisterInfo *reg_info,
@@ -186,7 +229,8 @@ GDBRemoteRegisterContext::ReadRegisterBytes (const RegisterInfo *reg_info, DataE
             if (!gdb_comm.ReadAllRegisters(m_thread.GetProtocolID(), response))
                 return false;
             if (response.IsNormalResponse())
-                if (response.GetHexBytes ((void *)m_reg_data.GetDataStart(), m_reg_data.GetByteSize(), '\xcc') == m_reg_data.GetByteSize())
+                if (response.GetHexBytes(const_cast<void *>(reinterpret_cast<const void *>(m_reg_data.GetDataStart())),
+                                         m_reg_data.GetByteSize(), '\xcc') == m_reg_data.GetByteSize())
                     SetAllRegisterValid (true);
         }
         else if (reg_info->value_regs)
@@ -275,8 +319,8 @@ GDBRemoteRegisterContext::SetPrimordialRegister(const RegisterInfo *reg_info,
     packet.Printf ("P%x=", reg);
     packet.PutBytesAsRawHex8 (m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size),
                               reg_info->byte_size,
-                              lldb::endian::InlHostByteOrder(),
-                              lldb::endian::InlHostByteOrder());
+                              endian::InlHostByteOrder(),
+                              endian::InlHostByteOrder());
 
     if (gdb_comm.GetThreadSuffixSupported())
         packet.Printf (";thread:%4.4" PRIx64 ";", m_thread.GetProtocolID());
@@ -372,8 +416,8 @@ GDBRemoteRegisterContext::WriteRegisterBytes (const RegisterInfo *reg_info, Data
                     packet.PutChar ('G');
                     packet.PutBytesAsRawHex8 (m_reg_data.GetDataStart(),
                                               m_reg_data.GetByteSize(),
-                                              lldb::endian::InlHostByteOrder(),
-                                              lldb::endian::InlHostByteOrder());
+                                              endian::InlHostByteOrder(),
+                                              endian::InlHostByteOrder());
 
                     if (thread_suffix_supported)
                         packet.Printf (";thread:%4.4" PRIx64 ";", m_thread.GetProtocolID());
@@ -772,8 +816,8 @@ GDBRemoteRegisterContext::WriteAllRegisterValues (const lldb::DataBufferSP &data
                                 packet.Printf ("P%x=", reg);
                                 packet.PutBytesAsRawHex8 (restore_src,
                                                           reg_byte_size,
-                                                          lldb::endian::InlHostByteOrder(),
-                                                          lldb::endian::InlHostByteOrder());
+                                                          endian::InlHostByteOrder(),
+                                                          endian::InlHostByteOrder());
 
                                 if (thread_suffix_supported)
                                     packet.Printf (";thread:%4.4" PRIx64 ";", m_thread.GetProtocolID());
@@ -795,8 +839,8 @@ GDBRemoteRegisterContext::WriteAllRegisterValues (const lldb::DataBufferSP &data
                                     packet.Printf ("P%x=", reg);
                                     packet.PutBytesAsRawHex8 (restore_src,
                                                               reg_byte_size,
-                                                              lldb::endian::InlHostByteOrder(),
-                                                              lldb::endian::InlHostByteOrder());
+                                                              endian::InlHostByteOrder(),
+                                                              endian::InlHostByteOrder());
     
                                     if (thread_suffix_supported)
                                         packet.Printf (";thread:%4.4" PRIx64 ";", m_thread.GetProtocolID());
@@ -851,7 +895,7 @@ GDBRemoteRegisterContext::WriteAllRegisterValues (const lldb::DataBufferSP &data
                     }
                     StreamString packet;
                     packet.Printf ("P%x=", reg_info->kinds[eRegisterKindLLDB]);
-                    packet.PutBytesAsRawHex8 (data_sp->GetBytes() + reg_info->byte_offset, reg_info->byte_size, lldb::endian::InlHostByteOrder(), lldb::endian::InlHostByteOrder());
+                    packet.PutBytesAsRawHex8 (data_sp->GetBytes() + reg_info->byte_offset, reg_info->byte_size, endian::InlHostByteOrder(), endian::InlHostByteOrder());
                     if (thread_suffix_supported)
                         packet.Printf (";thread:%4.4" PRIx64 ";", m_thread.GetProtocolID());
 
@@ -941,115 +985,115 @@ GDBRemoteDynamicRegisterInfo::HardcodeARMRegisters(bool from_scratch)
     };
 
     static RegisterInfo g_register_infos[] = {
-//   NAME    ALT    SZ  OFF  ENCODING          FORMAT          COMPILER             DWARF                GENERIC                 GDB    LLDB      VALUE REGS    INVALIDATE REGS
-//   ======  ====== === ===  =============     ============    ===================  ===================  ======================  ===    ====      ==========    ===============
-    { "r0", "arg1",   4,   0, eEncodingUint,    eFormatHex,   { gcc_r0,              dwarf_r0,            LLDB_REGNUM_GENERIC_ARG1,0,      0 },        NULL,              NULL},
-    { "r1", "arg2",   4,   0, eEncodingUint,    eFormatHex,   { gcc_r1,              dwarf_r1,            LLDB_REGNUM_GENERIC_ARG2,1,      1 },        NULL,              NULL},
-    { "r2", "arg3",   4,   0, eEncodingUint,    eFormatHex,   { gcc_r2,              dwarf_r2,            LLDB_REGNUM_GENERIC_ARG3,2,      2 },        NULL,              NULL},
-    { "r3", "arg4",   4,   0, eEncodingUint,    eFormatHex,   { gcc_r3,              dwarf_r3,            LLDB_REGNUM_GENERIC_ARG4,3,      3 },        NULL,              NULL},
-    { "r4",   NULL,   4,   0, eEncodingUint,    eFormatHex,   { gcc_r4,              dwarf_r4,            LLDB_INVALID_REGNUM,     4,      4 },        NULL,              NULL},
-    { "r5",   NULL,   4,   0, eEncodingUint,    eFormatHex,   { gcc_r5,              dwarf_r5,            LLDB_INVALID_REGNUM,     5,      5 },        NULL,              NULL},
-    { "r6",   NULL,   4,   0, eEncodingUint,    eFormatHex,   { gcc_r6,              dwarf_r6,            LLDB_INVALID_REGNUM,     6,      6 },        NULL,              NULL},
-    { "r7",   "fp",   4,   0, eEncodingUint,    eFormatHex,   { gcc_r7,              dwarf_r7,            LLDB_REGNUM_GENERIC_FP,  7,      7 },        NULL,              NULL},
-    { "r8",   NULL,   4,   0, eEncodingUint,    eFormatHex,   { gcc_r8,              dwarf_r8,            LLDB_INVALID_REGNUM,     8,      8 },        NULL,              NULL},
-    { "r9",   NULL,   4,   0, eEncodingUint,    eFormatHex,   { gcc_r9,              dwarf_r9,            LLDB_INVALID_REGNUM,     9,      9 },        NULL,              NULL},
-    { "r10",  NULL,   4,   0, eEncodingUint,    eFormatHex,   { gcc_r10,             dwarf_r10,           LLDB_INVALID_REGNUM,    10,     10 },        NULL,              NULL},
-    { "r11",  NULL,   4,   0, eEncodingUint,    eFormatHex,   { gcc_r11,             dwarf_r11,           LLDB_INVALID_REGNUM,    11,     11 },        NULL,              NULL},
-    { "r12",  NULL,   4,   0, eEncodingUint,    eFormatHex,   { gcc_r12,             dwarf_r12,           LLDB_INVALID_REGNUM,    12,     12 },        NULL,              NULL},
-    { "sp",   "r13",  4,   0, eEncodingUint,    eFormatHex,   { gcc_sp,              dwarf_sp,            LLDB_REGNUM_GENERIC_SP, 13,     13 },        NULL,              NULL},
-    { "lr",   "r14",  4,   0, eEncodingUint,    eFormatHex,   { gcc_lr,              dwarf_lr,            LLDB_REGNUM_GENERIC_RA, 14,     14 },        NULL,              NULL},
-    { "pc",   "r15",  4,   0, eEncodingUint,    eFormatHex,   { gcc_pc,              dwarf_pc,            LLDB_REGNUM_GENERIC_PC, 15,     15 },        NULL,              NULL},
-    { "f0",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    16,     16 },        NULL,              NULL},
-    { "f1",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    17,     17 },        NULL,              NULL},
-    { "f2",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    18,     18 },        NULL,              NULL},
-    { "f3",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    19,     19 },        NULL,              NULL},
-    { "f4",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    20,     20 },        NULL,              NULL},
-    { "f5",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    21,     21 },        NULL,              NULL},
-    { "f6",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    22,     22 },        NULL,              NULL},
-    { "f7",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    23,     23 },        NULL,              NULL},
-    { "fps",  NULL,   4,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    24,     24 },        NULL,              NULL},
-    { "cpsr","flags", 4,   0, eEncodingUint,    eFormatHex,   { gcc_cpsr,            dwarf_cpsr,          LLDB_INVALID_REGNUM,    25,     25 },        NULL,              NULL},
-    { "s0",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s0,            LLDB_INVALID_REGNUM,    26,     26 },        NULL,              NULL},
-    { "s1",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s1,            LLDB_INVALID_REGNUM,    27,     27 },        NULL,              NULL},
-    { "s2",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s2,            LLDB_INVALID_REGNUM,    28,     28 },        NULL,              NULL},
-    { "s3",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s3,            LLDB_INVALID_REGNUM,    29,     29 },        NULL,              NULL},
-    { "s4",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s4,            LLDB_INVALID_REGNUM,    30,     30 },        NULL,              NULL},
-    { "s5",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s5,            LLDB_INVALID_REGNUM,    31,     31 },        NULL,              NULL},
-    { "s6",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s6,            LLDB_INVALID_REGNUM,    32,     32 },        NULL,              NULL},
-    { "s7",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s7,            LLDB_INVALID_REGNUM,    33,     33 },        NULL,              NULL},
-    { "s8",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s8,            LLDB_INVALID_REGNUM,    34,     34 },        NULL,              NULL},
-    { "s9",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s9,            LLDB_INVALID_REGNUM,    35,     35 },        NULL,              NULL},
-    { "s10",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s10,           LLDB_INVALID_REGNUM,    36,     36 },        NULL,              NULL},
-    { "s11",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s11,           LLDB_INVALID_REGNUM,    37,     37 },        NULL,              NULL},
-    { "s12",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s12,           LLDB_INVALID_REGNUM,    38,     38 },        NULL,              NULL},
-    { "s13",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s13,           LLDB_INVALID_REGNUM,    39,     39 },        NULL,              NULL},
-    { "s14",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s14,           LLDB_INVALID_REGNUM,    40,     40 },        NULL,              NULL},
-    { "s15",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s15,           LLDB_INVALID_REGNUM,    41,     41 },        NULL,              NULL},
-    { "s16",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s16,           LLDB_INVALID_REGNUM,    42,     42 },        NULL,              NULL},
-    { "s17",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s17,           LLDB_INVALID_REGNUM,    43,     43 },        NULL,              NULL},
-    { "s18",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s18,           LLDB_INVALID_REGNUM,    44,     44 },        NULL,              NULL},
-    { "s19",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s19,           LLDB_INVALID_REGNUM,    45,     45 },        NULL,              NULL},
-    { "s20",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s20,           LLDB_INVALID_REGNUM,    46,     46 },        NULL,              NULL},
-    { "s21",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s21,           LLDB_INVALID_REGNUM,    47,     47 },        NULL,              NULL},
-    { "s22",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s22,           LLDB_INVALID_REGNUM,    48,     48 },        NULL,              NULL},
-    { "s23",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s23,           LLDB_INVALID_REGNUM,    49,     49 },        NULL,              NULL},
-    { "s24",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s24,           LLDB_INVALID_REGNUM,    50,     50 },        NULL,              NULL},
-    { "s25",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s25,           LLDB_INVALID_REGNUM,    51,     51 },        NULL,              NULL},
-    { "s26",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s26,           LLDB_INVALID_REGNUM,    52,     52 },        NULL,              NULL},
-    { "s27",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s27,           LLDB_INVALID_REGNUM,    53,     53 },        NULL,              NULL},
-    { "s28",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s28,           LLDB_INVALID_REGNUM,    54,     54 },        NULL,              NULL},
-    { "s29",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s29,           LLDB_INVALID_REGNUM,    55,     55 },        NULL,              NULL},
-    { "s30",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s30,           LLDB_INVALID_REGNUM,    56,     56 },        NULL,              NULL},
-    { "s31",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s31,           LLDB_INVALID_REGNUM,    57,     57 },        NULL,              NULL},
-    { "fpscr",NULL,   4,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    58,     58 },        NULL,              NULL},
-    { "d16",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d16,           LLDB_INVALID_REGNUM,    59,     59 },        NULL,              NULL},
-    { "d17",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d17,           LLDB_INVALID_REGNUM,    60,     60 },        NULL,              NULL},
-    { "d18",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d18,           LLDB_INVALID_REGNUM,    61,     61 },        NULL,              NULL},
-    { "d19",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d19,           LLDB_INVALID_REGNUM,    62,     62 },        NULL,              NULL},
-    { "d20",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d20,           LLDB_INVALID_REGNUM,    63,     63 },        NULL,              NULL},
-    { "d21",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d21,           LLDB_INVALID_REGNUM,    64,     64 },        NULL,              NULL},
-    { "d22",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d22,           LLDB_INVALID_REGNUM,    65,     65 },        NULL,              NULL},
-    { "d23",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d23,           LLDB_INVALID_REGNUM,    66,     66 },        NULL,              NULL},
-    { "d24",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d24,           LLDB_INVALID_REGNUM,    67,     67 },        NULL,              NULL},
-    { "d25",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d25,           LLDB_INVALID_REGNUM,    68,     68 },        NULL,              NULL},
-    { "d26",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d26,           LLDB_INVALID_REGNUM,    69,     69 },        NULL,              NULL},
-    { "d27",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d27,           LLDB_INVALID_REGNUM,    70,     70 },        NULL,              NULL},
-    { "d28",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d28,           LLDB_INVALID_REGNUM,    71,     71 },        NULL,              NULL},
-    { "d29",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d29,           LLDB_INVALID_REGNUM,    72,     72 },        NULL,              NULL},
-    { "d30",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d30,           LLDB_INVALID_REGNUM,    73,     73 },        NULL,              NULL},
-    { "d31",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d31,           LLDB_INVALID_REGNUM,    74,     74 },        NULL,              NULL},
-    { "d0",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d0,            LLDB_INVALID_REGNUM,    75,     75 },   g_d0_regs,              NULL},
-    { "d1",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d1,            LLDB_INVALID_REGNUM,    76,     76 },   g_d1_regs,              NULL},
-    { "d2",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d2,            LLDB_INVALID_REGNUM,    77,     77 },   g_d2_regs,              NULL},
-    { "d3",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d3,            LLDB_INVALID_REGNUM,    78,     78 },   g_d3_regs,              NULL},
-    { "d4",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d4,            LLDB_INVALID_REGNUM,    79,     79 },   g_d4_regs,              NULL},
-    { "d5",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d5,            LLDB_INVALID_REGNUM,    80,     80 },   g_d5_regs,              NULL},
-    { "d6",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d6,            LLDB_INVALID_REGNUM,    81,     81 },   g_d6_regs,              NULL},
-    { "d7",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d7,            LLDB_INVALID_REGNUM,    82,     82 },   g_d7_regs,              NULL},
-    { "d8",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d8,            LLDB_INVALID_REGNUM,    83,     83 },   g_d8_regs,              NULL},
-    { "d9",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d9,            LLDB_INVALID_REGNUM,    84,     84 },   g_d9_regs,              NULL},
-    { "d10",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d10,           LLDB_INVALID_REGNUM,    85,     85 },  g_d10_regs,              NULL},
-    { "d11",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d11,           LLDB_INVALID_REGNUM,    86,     86 },  g_d11_regs,              NULL},
-    { "d12",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d12,           LLDB_INVALID_REGNUM,    87,     87 },  g_d12_regs,              NULL},
-    { "d13",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d13,           LLDB_INVALID_REGNUM,    88,     88 },  g_d13_regs,              NULL},
-    { "d14",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d14,           LLDB_INVALID_REGNUM,    89,     89 },  g_d14_regs,              NULL},
-    { "d15",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d15,           LLDB_INVALID_REGNUM,    90,     90 },  g_d15_regs,              NULL},
-    { "q0",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q0,    LLDB_INVALID_REGNUM,    91,     91 },   g_q0_regs,              NULL},
-    { "q1",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q1,    LLDB_INVALID_REGNUM,    92,     92 },   g_q1_regs,              NULL},
-    { "q2",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q2,    LLDB_INVALID_REGNUM,    93,     93 },   g_q2_regs,              NULL},
-    { "q3",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q3,    LLDB_INVALID_REGNUM,    94,     94 },   g_q3_regs,              NULL},
-    { "q4",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q4,    LLDB_INVALID_REGNUM,    95,     95 },   g_q4_regs,              NULL},
-    { "q5",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q5,    LLDB_INVALID_REGNUM,    96,     96 },   g_q5_regs,              NULL},
-    { "q6",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q6,    LLDB_INVALID_REGNUM,    97,     97 },   g_q6_regs,              NULL},
-    { "q7",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q7,    LLDB_INVALID_REGNUM,    98,     98 },   g_q7_regs,              NULL},
-    { "q8",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q8,    LLDB_INVALID_REGNUM,    99,     99 },   g_q8_regs,              NULL},
-    { "q9",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q9,    LLDB_INVALID_REGNUM,   100,    100 },   g_q9_regs,              NULL},
-    { "q10",  NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q10,   LLDB_INVALID_REGNUM,   101,    101 },  g_q10_regs,              NULL},
-    { "q11",  NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q11,   LLDB_INVALID_REGNUM,   102,    102 },  g_q11_regs,              NULL},
-    { "q12",  NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q12,   LLDB_INVALID_REGNUM,   103,    103 },  g_q12_regs,              NULL},
-    { "q13",  NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q13,   LLDB_INVALID_REGNUM,   104,    104 },  g_q13_regs,              NULL},
-    { "q14",  NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q14,   LLDB_INVALID_REGNUM,   105,    105 },  g_q14_regs,              NULL},
-    { "q15",  NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q15,   LLDB_INVALID_REGNUM,   106,    106 },  g_q15_regs,              NULL}
+//   NAME    ALT    SZ  OFF  ENCODING          FORMAT          EH_FRAME             DWARF                GENERIC                 PROCESS PLUGIN  LLDB      VALUE REGS    INVALIDATE REGS
+//   ======  ====== === ===  =============     ============    ===================  ===================  ======================  =============   ====      ==========    ===============
+    { "r0", "arg1",   4,   0, eEncodingUint,    eFormatHex,   { ehframe_r0,          dwarf_r0,            LLDB_REGNUM_GENERIC_ARG1,0,               0 },        NULL,              NULL},
+    { "r1", "arg2",   4,   0, eEncodingUint,    eFormatHex,   { ehframe_r1,          dwarf_r1,            LLDB_REGNUM_GENERIC_ARG2,1,               1 },        NULL,              NULL},
+    { "r2", "arg3",   4,   0, eEncodingUint,    eFormatHex,   { ehframe_r2,          dwarf_r2,            LLDB_REGNUM_GENERIC_ARG3,2,               2 },        NULL,              NULL},
+    { "r3", "arg4",   4,   0, eEncodingUint,    eFormatHex,   { ehframe_r3,          dwarf_r3,            LLDB_REGNUM_GENERIC_ARG4,3,               3 },        NULL,              NULL},
+    { "r4",   NULL,   4,   0, eEncodingUint,    eFormatHex,   { ehframe_r4,          dwarf_r4,            LLDB_INVALID_REGNUM,     4,               4 },        NULL,              NULL},
+    { "r5",   NULL,   4,   0, eEncodingUint,    eFormatHex,   { ehframe_r5,          dwarf_r5,            LLDB_INVALID_REGNUM,     5,               5 },        NULL,              NULL},
+    { "r6",   NULL,   4,   0, eEncodingUint,    eFormatHex,   { ehframe_r6,          dwarf_r6,            LLDB_INVALID_REGNUM,     6,               6 },        NULL,              NULL},
+    { "r7",   "fp",   4,   0, eEncodingUint,    eFormatHex,   { ehframe_r7,          dwarf_r7,            LLDB_REGNUM_GENERIC_FP,  7,               7 },        NULL,              NULL},
+    { "r8",   NULL,   4,   0, eEncodingUint,    eFormatHex,   { ehframe_r8,          dwarf_r8,            LLDB_INVALID_REGNUM,     8,               8 },        NULL,              NULL},
+    { "r9",   NULL,   4,   0, eEncodingUint,    eFormatHex,   { ehframe_r9,          dwarf_r9,            LLDB_INVALID_REGNUM,     9,               9 },        NULL,              NULL},
+    { "r10",  NULL,   4,   0, eEncodingUint,    eFormatHex,   { ehframe_r10,         dwarf_r10,           LLDB_INVALID_REGNUM,    10,              10 },        NULL,              NULL},
+    { "r11",  NULL,   4,   0, eEncodingUint,    eFormatHex,   { ehframe_r11,         dwarf_r11,           LLDB_INVALID_REGNUM,    11,              11 },        NULL,              NULL},
+    { "r12",  NULL,   4,   0, eEncodingUint,    eFormatHex,   { ehframe_r12,         dwarf_r12,           LLDB_INVALID_REGNUM,    12,              12 },        NULL,              NULL},
+    { "sp",   "r13",  4,   0, eEncodingUint,    eFormatHex,   { ehframe_sp,          dwarf_sp,            LLDB_REGNUM_GENERIC_SP, 13,              13 },        NULL,              NULL},
+    { "lr",   "r14",  4,   0, eEncodingUint,    eFormatHex,   { ehframe_lr,          dwarf_lr,            LLDB_REGNUM_GENERIC_RA, 14,              14 },        NULL,              NULL},
+    { "pc",   "r15",  4,   0, eEncodingUint,    eFormatHex,   { ehframe_pc,          dwarf_pc,            LLDB_REGNUM_GENERIC_PC, 15,              15 },        NULL,              NULL},
+    { "f0",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    16,              16 },        NULL,              NULL},
+    { "f1",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    17,              17 },        NULL,              NULL},
+    { "f2",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    18,              18 },        NULL,              NULL},
+    { "f3",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    19,              19 },        NULL,              NULL},
+    { "f4",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    20,              20 },        NULL,              NULL},
+    { "f5",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    21,              21 },        NULL,              NULL},
+    { "f6",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    22,              22 },        NULL,              NULL},
+    { "f7",   NULL,  12,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    23,              23 },        NULL,              NULL},
+    { "fps",  NULL,   4,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    24,              24 },        NULL,              NULL},
+    { "cpsr","flags", 4,   0, eEncodingUint,    eFormatHex,   { ehframe_cpsr,        dwarf_cpsr,          LLDB_INVALID_REGNUM,    25,              25 },        NULL,              NULL},
+    { "s0",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s0,            LLDB_INVALID_REGNUM,    26,              26 },        NULL,              NULL},
+    { "s1",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s1,            LLDB_INVALID_REGNUM,    27,              27 },        NULL,              NULL},
+    { "s2",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s2,            LLDB_INVALID_REGNUM,    28,              28 },        NULL,              NULL},
+    { "s3",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s3,            LLDB_INVALID_REGNUM,    29,              29 },        NULL,              NULL},
+    { "s4",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s4,            LLDB_INVALID_REGNUM,    30,              30 },        NULL,              NULL},
+    { "s5",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s5,            LLDB_INVALID_REGNUM,    31,              31 },        NULL,              NULL},
+    { "s6",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s6,            LLDB_INVALID_REGNUM,    32,              32 },        NULL,              NULL},
+    { "s7",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s7,            LLDB_INVALID_REGNUM,    33,              33 },        NULL,              NULL},
+    { "s8",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s8,            LLDB_INVALID_REGNUM,    34,              34 },        NULL,              NULL},
+    { "s9",   NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s9,            LLDB_INVALID_REGNUM,    35,              35 },        NULL,              NULL},
+    { "s10",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s10,           LLDB_INVALID_REGNUM,    36,              36 },        NULL,              NULL},
+    { "s11",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s11,           LLDB_INVALID_REGNUM,    37,              37 },        NULL,              NULL},
+    { "s12",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s12,           LLDB_INVALID_REGNUM,    38,              38 },        NULL,              NULL},
+    { "s13",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s13,           LLDB_INVALID_REGNUM,    39,              39 },        NULL,              NULL},
+    { "s14",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s14,           LLDB_INVALID_REGNUM,    40,              40 },        NULL,              NULL},
+    { "s15",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s15,           LLDB_INVALID_REGNUM,    41,              41 },        NULL,              NULL},
+    { "s16",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s16,           LLDB_INVALID_REGNUM,    42,              42 },        NULL,              NULL},
+    { "s17",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s17,           LLDB_INVALID_REGNUM,    43,              43 },        NULL,              NULL},
+    { "s18",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s18,           LLDB_INVALID_REGNUM,    44,              44 },        NULL,              NULL},
+    { "s19",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s19,           LLDB_INVALID_REGNUM,    45,              45 },        NULL,              NULL},
+    { "s20",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s20,           LLDB_INVALID_REGNUM,    46,              46 },        NULL,              NULL},
+    { "s21",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s21,           LLDB_INVALID_REGNUM,    47,              47 },        NULL,              NULL},
+    { "s22",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s22,           LLDB_INVALID_REGNUM,    48,              48 },        NULL,              NULL},
+    { "s23",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s23,           LLDB_INVALID_REGNUM,    49,              49 },        NULL,              NULL},
+    { "s24",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s24,           LLDB_INVALID_REGNUM,    50,              50 },        NULL,              NULL},
+    { "s25",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s25,           LLDB_INVALID_REGNUM,    51,              51 },        NULL,              NULL},
+    { "s26",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s26,           LLDB_INVALID_REGNUM,    52,              52 },        NULL,              NULL},
+    { "s27",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s27,           LLDB_INVALID_REGNUM,    53,              53 },        NULL,              NULL},
+    { "s28",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s28,           LLDB_INVALID_REGNUM,    54,              54 },        NULL,              NULL},
+    { "s29",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s29,           LLDB_INVALID_REGNUM,    55,              55 },        NULL,              NULL},
+    { "s30",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s30,           LLDB_INVALID_REGNUM,    56,              56 },        NULL,              NULL},
+    { "s31",  NULL,   4,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s31,           LLDB_INVALID_REGNUM,    57,              57 },        NULL,              NULL},
+    { "fpscr",NULL,   4,   0, eEncodingUint,    eFormatHex,   { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,    58,              58 },        NULL,              NULL},
+    { "d16",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d16,           LLDB_INVALID_REGNUM,    59,              59 },        NULL,              NULL},
+    { "d17",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d17,           LLDB_INVALID_REGNUM,    60,              60 },        NULL,              NULL},
+    { "d18",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d18,           LLDB_INVALID_REGNUM,    61,              61 },        NULL,              NULL},
+    { "d19",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d19,           LLDB_INVALID_REGNUM,    62,              62 },        NULL,              NULL},
+    { "d20",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d20,           LLDB_INVALID_REGNUM,    63,              63 },        NULL,              NULL},
+    { "d21",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d21,           LLDB_INVALID_REGNUM,    64,              64 },        NULL,              NULL},
+    { "d22",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d22,           LLDB_INVALID_REGNUM,    65,              65 },        NULL,              NULL},
+    { "d23",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d23,           LLDB_INVALID_REGNUM,    66,              66 },        NULL,              NULL},
+    { "d24",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d24,           LLDB_INVALID_REGNUM,    67,              67 },        NULL,              NULL},
+    { "d25",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d25,           LLDB_INVALID_REGNUM,    68,              68 },        NULL,              NULL},
+    { "d26",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d26,           LLDB_INVALID_REGNUM,    69,              69 },        NULL,              NULL},
+    { "d27",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d27,           LLDB_INVALID_REGNUM,    70,              70 },        NULL,              NULL},
+    { "d28",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d28,           LLDB_INVALID_REGNUM,    71,              71 },        NULL,              NULL},
+    { "d29",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d29,           LLDB_INVALID_REGNUM,    72,              72 },        NULL,              NULL},
+    { "d30",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d30,           LLDB_INVALID_REGNUM,    73,              73 },        NULL,              NULL},
+    { "d31",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d31,           LLDB_INVALID_REGNUM,    74,              74 },        NULL,              NULL},
+    { "d0",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d0,            LLDB_INVALID_REGNUM,    75,              75 },   g_d0_regs,              NULL},
+    { "d1",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d1,            LLDB_INVALID_REGNUM,    76,              76 },   g_d1_regs,              NULL},
+    { "d2",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d2,            LLDB_INVALID_REGNUM,    77,              77 },   g_d2_regs,              NULL},
+    { "d3",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d3,            LLDB_INVALID_REGNUM,    78,              78 },   g_d3_regs,              NULL},
+    { "d4",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d4,            LLDB_INVALID_REGNUM,    79,              79 },   g_d4_regs,              NULL},
+    { "d5",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d5,            LLDB_INVALID_REGNUM,    80,              80 },   g_d5_regs,              NULL},
+    { "d6",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d6,            LLDB_INVALID_REGNUM,    81,              81 },   g_d6_regs,              NULL},
+    { "d7",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d7,            LLDB_INVALID_REGNUM,    82,              82 },   g_d7_regs,              NULL},
+    { "d8",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d8,            LLDB_INVALID_REGNUM,    83,              83 },   g_d8_regs,              NULL},
+    { "d9",   NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d9,            LLDB_INVALID_REGNUM,    84,              84 },   g_d9_regs,              NULL},
+    { "d10",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d10,           LLDB_INVALID_REGNUM,    85,              85 },  g_d10_regs,              NULL},
+    { "d11",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d11,           LLDB_INVALID_REGNUM,    86,              86 },  g_d11_regs,              NULL},
+    { "d12",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d12,           LLDB_INVALID_REGNUM,    87,              87 },  g_d12_regs,              NULL},
+    { "d13",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d13,           LLDB_INVALID_REGNUM,    88,              88 },  g_d13_regs,              NULL},
+    { "d14",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d14,           LLDB_INVALID_REGNUM,    89,              89 },  g_d14_regs,              NULL},
+    { "d15",  NULL,   8,   0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d15,           LLDB_INVALID_REGNUM,    90,              90 },  g_d15_regs,              NULL},
+    { "q0",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q0,    LLDB_INVALID_REGNUM,    91,              91 },   g_q0_regs,              NULL},
+    { "q1",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q1,    LLDB_INVALID_REGNUM,    92,              92 },   g_q1_regs,              NULL},
+    { "q2",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q2,    LLDB_INVALID_REGNUM,    93,              93 },   g_q2_regs,              NULL},
+    { "q3",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q3,    LLDB_INVALID_REGNUM,    94,              94 },   g_q3_regs,              NULL},
+    { "q4",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q4,    LLDB_INVALID_REGNUM,    95,              95 },   g_q4_regs,              NULL},
+    { "q5",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q5,    LLDB_INVALID_REGNUM,    96,              96 },   g_q5_regs,              NULL},
+    { "q6",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q6,    LLDB_INVALID_REGNUM,    97,              97 },   g_q6_regs,              NULL},
+    { "q7",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q7,    LLDB_INVALID_REGNUM,    98,              98 },   g_q7_regs,              NULL},
+    { "q8",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q8,    LLDB_INVALID_REGNUM,    99,              99 },   g_q8_regs,              NULL},
+    { "q9",   NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q9,    LLDB_INVALID_REGNUM,   100,             100 },   g_q9_regs,              NULL},
+    { "q10",  NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q10,   LLDB_INVALID_REGNUM,   101,             101 },  g_q10_regs,              NULL},
+    { "q11",  NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q11,   LLDB_INVALID_REGNUM,   102,             102 },  g_q11_regs,              NULL},
+    { "q12",  NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q12,   LLDB_INVALID_REGNUM,   103,             103 },  g_q12_regs,              NULL},
+    { "q13",  NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q13,   LLDB_INVALID_REGNUM,   104,             104 },  g_q13_regs,              NULL},
+    { "q14",  NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q14,   LLDB_INVALID_REGNUM,   105,             105 },  g_q14_regs,              NULL},
+    { "q15",  NULL,   16,  0, eEncodingVector,  eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q15,   LLDB_INVALID_REGNUM,   106,             106 },  g_q15_regs,              NULL}
     };
 
     static const uint32_t num_registers = llvm::array_lengthof(g_register_infos);
diff --git a/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.h b/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.h
index 117d280cc547a..0e26c69eb2a9f 100644
--- a/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.h
+++ b/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.h
@@ -42,32 +42,22 @@ public:
     {
     }
 
-    ~GDBRemoteDynamicRegisterInfo ()
-    {
-    }
+    ~GDBRemoteDynamicRegisterInfo() override = default;
 
     void
     HardcodeARMRegisters(bool from_scratch);
-
 };
 
 class GDBRemoteRegisterContext : public RegisterContext
 {
 public:
-    //------------------------------------------------------------------
-    // Constructors and Destructors
-    //------------------------------------------------------------------
     GDBRemoteRegisterContext (ThreadGDBRemote &thread,
                               uint32_t concrete_frame_idx,
                               GDBRemoteDynamicRegisterInfo &reg_info,
                               bool read_all_at_once);
 
-    virtual
-    ~GDBRemoteRegisterContext ();
+    ~GDBRemoteRegisterContext() override;
 
-    //------------------------------------------------------------------
-    // Subclasses must override these functions
-    //------------------------------------------------------------------
     void
     InvalidateAllRegisters () override;
 
@@ -119,6 +109,9 @@ protected:
     bool
     PrivateSetRegisterValue (uint32_t reg, StringExtractor &response);
     
+    bool
+    PrivateSetRegisterValue (uint32_t reg, uint64_t val);
+
     void
     SetAllRegisterValid (bool b);
 
@@ -166,13 +159,10 @@ private:
     bool SetPrimordialRegister(const RegisterInfo *reg_info,
                                GDBRemoteCommunicationClient &gdb_comm);
 
-    //------------------------------------------------------------------
-    // For GDBRemoteRegisterContext only
-    //------------------------------------------------------------------
     DISALLOW_COPY_AND_ASSIGN (GDBRemoteRegisterContext);
 };
 
 } // namespace process_gdb_remote
 } // namespace lldb_private
 
-#endif  // lldb_GDBRemoteRegisterContext_h_
+#endif // lldb_GDBRemoteRegisterContext_h_
diff --git a/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp b/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
index 1e150b1dda9fd..2e7a5b5384f46 100644
--- a/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
+++ b/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
@@ -40,6 +40,7 @@
 #include "lldb/Core/Timer.h"
 #include "lldb/Core/Value.h"
 #include "lldb/DataFormatters/FormatManager.h"
+#include "lldb/Host/FileSystem.h"
 #include "lldb/Host/HostThread.h"
 #include "lldb/Host/StringConvert.h"
 #include "lldb/Host/Symbols.h"
@@ -56,6 +57,7 @@
 #include "lldb/Interpreter/OptionGroupUInt64.h"
 #include "lldb/Interpreter/Property.h"
 #include "lldb/Symbol/ObjectFile.h"
+#include "lldb/Target/ABI.h"
 #include "lldb/Target/DynamicLoader.h"
 #include "lldb/Target/Target.h"
 #include "lldb/Target/TargetList.h"
@@ -192,7 +194,7 @@ public:
         {
             for (uint32_t i = 0; i < e_num; ++i)
                 m_has[i] = false;
-        };
+        }
 
         void set_name (const std::string & name)
         {
@@ -216,6 +218,16 @@ public:
             return m_has[e_has_base];
         }
 
+        void set_base_is_offset (bool is_offset)
+        {
+            m_base_is_offset = is_offset;
+        }
+        bool get_base_is_offset(bool & out) const
+        {
+            out = m_base_is_offset;
+            return m_has[e_has_base];
+        }
+
         void set_link_map (const lldb::addr_t addr)
         {
             m_link_map = addr;
@@ -250,6 +262,7 @@ public:
         std::string m_name;
         lldb::addr_t m_link_map;
         lldb::addr_t m_base;
+        bool m_base_is_offset;
         lldb::addr_t m_dynamic;
     };
 
@@ -322,22 +335,22 @@ ProcessGDBRemote::Terminate()
 
 
 lldb::ProcessSP
-ProcessGDBRemote::CreateInstance (Target &target, Listener &listener, const FileSpec *crash_file_path)
+ProcessGDBRemote::CreateInstance (lldb::TargetSP target_sp, Listener &listener, const FileSpec *crash_file_path)
 {
     lldb::ProcessSP process_sp;
     if (crash_file_path == NULL)
-        process_sp.reset (new ProcessGDBRemote (target, listener));
+        process_sp.reset (new ProcessGDBRemote (target_sp, listener));
     return process_sp;
 }
 
 bool
-ProcessGDBRemote::CanDebug (Target &target, bool plugin_specified_by_name)
+ProcessGDBRemote::CanDebug (lldb::TargetSP target_sp, bool plugin_specified_by_name)
 {
     if (plugin_specified_by_name)
         return true;
 
     // For now we are just making sure the file exists for a given module
-    Module *exe_module = target.GetExecutableModulePointer();
+    Module *exe_module = target_sp->GetExecutableModulePointer();
     if (exe_module)
     {
         ObjectFile *exe_objfile = exe_module->GetObjectFile();
@@ -366,17 +379,20 @@ ProcessGDBRemote::CanDebug (Target &target, bool plugin_specified_by_name)
 //----------------------------------------------------------------------
 // ProcessGDBRemote constructor
 //----------------------------------------------------------------------
-ProcessGDBRemote::ProcessGDBRemote(Target& target, Listener &listener) :
-    Process (target, listener),
+ProcessGDBRemote::ProcessGDBRemote(lldb::TargetSP target_sp, Listener &listener) :
+    Process (target_sp, listener),
     m_flags (0),
     m_gdb_comm (),
     m_debugserver_pid (LLDB_INVALID_PROCESS_ID),
     m_last_stop_packet_mutex (Mutex::eMutexTypeRecursive),
     m_register_info (),
     m_async_broadcaster (NULL, "lldb.process.gdb-remote.async-broadcaster"),
+    m_async_listener("lldb.process.gdb-remote.async-listener"),
     m_async_thread_state_mutex(Mutex::eMutexTypeRecursive),
     m_thread_ids (),
-    m_threads_info_sp (),
+    m_thread_pcs (),
+    m_jstopinfo_sp (),
+    m_jthreadsinfo_sp (),
     m_continue_c_tids (),
     m_continue_C_tids (),
     m_continue_s_tids (),
@@ -394,6 +410,25 @@ ProcessGDBRemote::ProcessGDBRemote(Target& target, Listener &listener) :
     m_async_broadcaster.SetEventName (eBroadcastBitAsyncThreadShouldExit,   "async thread should exit");
     m_async_broadcaster.SetEventName (eBroadcastBitAsyncContinue,           "async thread continue");
     m_async_broadcaster.SetEventName (eBroadcastBitAsyncThreadDidExit,      "async thread did exit");
+
+    Log *log (ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (GDBR_LOG_ASYNC));
+
+    const uint32_t async_event_mask = eBroadcastBitAsyncContinue | eBroadcastBitAsyncThreadShouldExit;
+
+    if (m_async_listener.StartListeningForEvents(&m_async_broadcaster, async_event_mask) != async_event_mask)
+    {
+        if (log)
+            log->Printf("ProcessGDBRemote::%s failed to listen for m_async_broadcaster events", __FUNCTION__);
+    }
+
+    const uint32_t gdb_event_mask = Communication::eBroadcastBitReadThreadDidExit |
+                                    GDBRemoteCommunication::eBroadcastBitGdbReadThreadGotNotify;
+    if (m_async_listener.StartListeningForEvents(&m_gdb_comm, gdb_event_mask) != gdb_event_mask)
+    {
+        if (log)
+            log->Printf("ProcessGDBRemote::%s failed to listen for m_gdb_comm events", __FUNCTION__);
+    }
+
     const uint64_t timeout_seconds = GetGlobalPluginProperties()->GetPacketTimeout();
     if (timeout_seconds > 0)
         m_gdb_comm.SetPacketTimeout(timeout_seconds);
@@ -481,6 +516,40 @@ ProcessGDBRemote::ParsePythonTargetDefinition(const FileSpec &target_definition_
     return false;
 }
 
+// If the remote stub didn't give us eh_frame or DWARF register numbers for a register,
+// see if the ABI can provide them.
+// DWARF and eh_frame register numbers are defined as a part of the ABI.
+static void
+AugmentRegisterInfoViaABI (RegisterInfo &reg_info, ConstString reg_name, ABISP abi_sp)
+{
+    if (reg_info.kinds[eRegisterKindEHFrame] == LLDB_INVALID_REGNUM
+        || reg_info.kinds[eRegisterKindDWARF] == LLDB_INVALID_REGNUM)
+    {
+        if (abi_sp)
+        {
+            RegisterInfo abi_reg_info;
+            if (abi_sp->GetRegisterInfoByName (reg_name, abi_reg_info))
+            {
+                if (reg_info.kinds[eRegisterKindEHFrame] == LLDB_INVALID_REGNUM &&
+                    abi_reg_info.kinds[eRegisterKindEHFrame] != LLDB_INVALID_REGNUM)
+                {
+                    reg_info.kinds[eRegisterKindEHFrame] = abi_reg_info.kinds[eRegisterKindEHFrame];
+                }
+                if (reg_info.kinds[eRegisterKindDWARF] == LLDB_INVALID_REGNUM &&
+                    abi_reg_info.kinds[eRegisterKindDWARF] != LLDB_INVALID_REGNUM)
+                {
+                    reg_info.kinds[eRegisterKindDWARF] = abi_reg_info.kinds[eRegisterKindDWARF];
+                }
+                if (reg_info.kinds[eRegisterKindGeneric] == LLDB_INVALID_REGNUM &&
+                    abi_reg_info.kinds[eRegisterKindGeneric] != LLDB_INVALID_REGNUM)
+                {
+                    reg_info.kinds[eRegisterKindGeneric] = abi_reg_info.kinds[eRegisterKindGeneric];
+                }
+            }
+        }
+    }
+}
+
 static size_t
 SplitCommaSeparatedRegisterNumberString(const llvm::StringRef &comma_separated_regiter_numbers, std::vector<uint32_t> &regnums, int base)
 {
@@ -524,11 +593,23 @@ ProcessGDBRemote::BuildDynamicRegisterInfo (bool force)
     //     3 - Fall back on the qRegisterInfo packets.
 
     FileSpec target_definition_fspec = GetGlobalPluginProperties()->GetTargetDefinitionFile ();
+    if (!target_definition_fspec.Exists())
+    {
+        // If the filename doesn't exist, it may be a ~ not having been expanded - try to resolve it.
+        target_definition_fspec.ResolvePath();
+    }
     if (target_definition_fspec)
     {
         // See if we can get register definitions from a python file
         if (ParsePythonTargetDefinition (target_definition_fspec))
+        {
             return;
+        }
+        else
+        {
+            StreamSP stream_sp = GetTarget().GetDebugger().GetAsyncOutputStream();
+            stream_sp->Printf ("ERROR: target description file %s failed to parse.\n", target_definition_fspec.GetPath().c_str());
+        }
     }
 
     if (GetGDBServerRegisterInfo ())
@@ -561,12 +642,12 @@ ProcessGDBRemote::BuildDynamicRegisterInfo (bool force)
                     0,                    // byte size
                     reg_offset,           // offset
                     eEncodingUint,        // encoding
-                    eFormatHex,           // formate
+                    eFormatHex,           // format
                     {
-                        LLDB_INVALID_REGNUM, // GCC reg num
+                        LLDB_INVALID_REGNUM, // eh_frame reg num
                         LLDB_INVALID_REGNUM, // DWARF reg num
                         LLDB_INVALID_REGNUM, // generic reg num
-                        reg_num,             // GDB reg num
+                        reg_num,             // process plugin reg num
                         reg_num           // native register number
                     },
                     NULL,
@@ -635,9 +716,9 @@ ProcessGDBRemote::BuildDynamicRegisterInfo (bool force)
                     {
                         set_name.SetCString(value.c_str());
                     }
-                    else if (name.compare("gcc") == 0)
+                    else if (name.compare("gcc") == 0 || name.compare("ehframe") == 0)
                     {
-                        reg_info.kinds[eRegisterKindGCC] = StringConvert::ToUInt32(value.c_str(), LLDB_INVALID_REGNUM, 0);
+                        reg_info.kinds[eRegisterKindEHFrame] = StringConvert::ToUInt32(value.c_str(), LLDB_INVALID_REGNUM, 0);
                     }
                     else if (name.compare("dwarf") == 0)
                     {
@@ -671,6 +752,8 @@ ProcessGDBRemote::BuildDynamicRegisterInfo (bool force)
                     reg_info.invalidate_regs = invalidate_regs.data();
                 }
 
+                AugmentRegisterInfoViaABI (reg_info, reg_name, GetABI ());
+
                 m_register_info.AddRegister(reg_info, reg_name, alt_name, set_name);
             }
             else
@@ -711,11 +794,12 @@ ProcessGDBRemote::BuildDynamicRegisterInfo (bool force)
     if (!target_arch.IsValid())
     {
         if (remote_arch.IsValid()
-              && remote_arch.GetMachine() == llvm::Triple::arm
+              && (remote_arch.GetMachine() == llvm::Triple::arm || remote_arch.GetMachine() == llvm::Triple::thumb)
               && remote_arch.GetTriple().getVendor() == llvm::Triple::Apple)
             m_register_info.HardcodeARMRegisters(from_scratch);
     }
-    else if (target_arch.GetMachine() == llvm::Triple::arm)
+    else if (target_arch.GetMachine() == llvm::Triple::arm
+            || target_arch.GetMachine() == llvm::Triple::thumb)
     {
         m_register_info.HardcodeARMRegisters(from_scratch);
     }
@@ -779,20 +863,21 @@ ProcessGDBRemote::DoConnectRemote (Stream *strm, const char *remote_url)
             if (GetTarget().GetNonStopModeEnabled())
                 HandleStopReplySequence();
 
-            if (!m_target.GetArchitecture().IsValid()) 
+            Target &target = GetTarget();
+            if (!target.GetArchitecture().IsValid()) 
             {
                 if (m_gdb_comm.GetProcessArchitecture().IsValid())
                 {
-                    m_target.SetArchitecture(m_gdb_comm.GetProcessArchitecture());
+                    target.SetArchitecture(m_gdb_comm.GetProcessArchitecture());
                 }
                 else
                 {
-                    m_target.SetArchitecture(m_gdb_comm.GetHostArchitecture());
+                    target.SetArchitecture(m_gdb_comm.GetHostArchitecture());
                 }
             }
 
             const StateType state = SetThreadStopInfo (response);
-            if (state == eStateStopped)
+            if (state != eStateInvalid)
             {
                 SetPrivateState (state);
             }
@@ -910,27 +995,22 @@ ProcessGDBRemote::DoLaunch (Module *exe_module, ProcessLaunchInfo &launch_info)
     ObjectFile * object_file = exe_module->GetObjectFile();
     if (object_file)
     {
-        // Make sure we aren't already connected?
-        if (!m_gdb_comm.IsConnected())
-        {
-            error = LaunchAndConnectToDebugserver (launch_info);
-        }
-        
+        error = EstablishConnectionIfNeeded (launch_info);
         if (error.Success())
         {
             lldb_utility::PseudoTerminal pty;
             const bool disable_stdio = (launch_flags & eLaunchFlagDisableSTDIO) != 0;
 
-            PlatformSP platform_sp (m_target.GetPlatform());
+            PlatformSP platform_sp (GetTarget().GetPlatform());
             if (disable_stdio)
             {
                 // set to /dev/null unless redirected to a file above
                 if (!stdin_file_spec)
-                    stdin_file_spec.SetFile("/dev/null", false);
+                    stdin_file_spec.SetFile(FileSystem::DEV_NULL, false);
                 if (!stdout_file_spec)
-                    stdout_file_spec.SetFile("/dev/null", false);
+                    stdout_file_spec.SetFile(FileSystem::DEV_NULL, false);
                 if (!stderr_file_spec)
-                    stderr_file_spec.SetFile("/dev/null", false);
+                    stderr_file_spec.SetFile(FileSystem::DEV_NULL, false);
             }
             else if (platform_sp && platform_sp->IsHost())
             {
@@ -977,7 +1057,7 @@ ProcessGDBRemote::DoLaunch (Module *exe_module, ProcessLaunchInfo &launch_info)
             m_gdb_comm.SetDisableASLR (launch_flags & eLaunchFlagDisableASLR);
             m_gdb_comm.SetDetachOnError (launch_flags & eLaunchFlagDetachOnError);
 
-            m_gdb_comm.SendLaunchArchPacket (m_target.GetArchitecture().GetArchitectureName());
+            m_gdb_comm.SendLaunchArchPacket (GetTarget().GetArchitecture().GetArchitectureName());
             
             const char * launch_event_data = launch_info.GetLaunchEventData();
             if (launch_event_data != NULL && *launch_event_data != '\0')
@@ -1044,13 +1124,13 @@ ProcessGDBRemote::DoLaunch (Module *exe_module, ProcessLaunchInfo &launch_info)
 
                 if (process_arch.IsValid())
                 {
-                    m_target.MergeArchitecture(process_arch);
+                    GetTarget().MergeArchitecture(process_arch);
                 }
                 else
                 {
                     const ArchSpec &host_arch = m_gdb_comm.GetHostArchitecture();
                     if (host_arch.IsValid())
-                        m_target.MergeArchitecture(host_arch);
+                        GetTarget().MergeArchitecture(host_arch);
                 }
 
                 SetPrivateState (SetThreadStopInfo (response));
@@ -1226,8 +1306,8 @@ ProcessGDBRemote::DidLaunchOrAttach (ArchSpec& process_arch)
                 // it has, so we really need to take the remote host architecture as our
                 // defacto architecture in this case.
 
-                if (process_arch.GetMachine() == llvm::Triple::arm &&
-                    process_arch.GetTriple().getVendor() == llvm::Triple::Apple)
+                if ((process_arch.GetMachine() == llvm::Triple::arm || process_arch.GetMachine() == llvm::Triple::thumb)
+                    && process_arch.GetTriple().getVendor() == llvm::Triple::Apple)
                 {
                     GetTarget().SetArchitecture (process_arch);
                     if (log)
@@ -1295,21 +1375,7 @@ ProcessGDBRemote::DoAttachToProcessWithID (lldb::pid_t attach_pid, const Process
     Clear();
     if (attach_pid != LLDB_INVALID_PROCESS_ID)
     {
-        // Make sure we aren't already connected?
-        if (!m_gdb_comm.IsConnected())
-        {
-            error = LaunchAndConnectToDebugserver (attach_info);
-            
-            if (error.Fail())
-            {
-                const char *error_string = error.AsCString();
-                if (error_string == NULL)
-                    error_string = "unable to launch " DEBUGSERVER_BASENAME;
-
-                SetExitStatus (-1, error_string);
-            }
-        }
-    
+        error = EstablishConnectionIfNeeded (attach_info);
         if (error.Success())
         {
             m_gdb_comm.SetDetachOnError(attach_info.GetDetachOnError());
@@ -1319,6 +1385,8 @@ ProcessGDBRemote::DoAttachToProcessWithID (lldb::pid_t attach_pid, const Process
             SetID (attach_pid);            
             m_async_broadcaster.BroadcastEvent (eBroadcastBitAsyncContinue, new EventDataBytes (packet, packet_len));
         }
+        else
+            SetExitStatus (-1, error.AsCString());
     }
 
     return error;
@@ -1333,21 +1401,7 @@ ProcessGDBRemote::DoAttachToProcessWithName (const char *process_name, const Pro
 
     if (process_name && process_name[0])
     {
-        // Make sure we aren't already connected?
-        if (!m_gdb_comm.IsConnected())
-        {
-            error = LaunchAndConnectToDebugserver (attach_info);
-
-            if (error.Fail())
-            {
-                const char *error_string = error.AsCString();
-                if (error_string == NULL)
-                    error_string = "unable to launch " DEBUGSERVER_BASENAME;
-
-                SetExitStatus (-1, error_string);
-            }
-        }
-
+        error = EstablishConnectionIfNeeded (attach_info);
         if (error.Success())
         {
             StreamString packet;
@@ -1371,11 +1425,13 @@ ProcessGDBRemote::DoAttachToProcessWithName (const char *process_name, const Pro
             else
                 packet.PutCString("vAttachName");
             packet.PutChar(';');
-            packet.PutBytesAsRawHex8(process_name, strlen(process_name), lldb::endian::InlHostByteOrder(), lldb::endian::InlHostByteOrder());
+            packet.PutBytesAsRawHex8(process_name, strlen(process_name), endian::InlHostByteOrder(), endian::InlHostByteOrder());
             
             m_async_broadcaster.BroadcastEvent (eBroadcastBitAsyncContinue, new EventDataBytes (packet.GetData(), packet.GetSize()));
 
         }
+        else
+            SetExitStatus (-1, error.AsCString());
     }
     return error;
 }
@@ -1403,6 +1459,8 @@ ProcessGDBRemote::WillResume ()
     m_continue_C_tids.clear();
     m_continue_s_tids.clear();
     m_continue_S_tids.clear();
+    m_jstopinfo_sp.reset();
+    m_jthreadsinfo_sp.reset();
     return Error();
 }
 
@@ -1694,12 +1752,14 @@ ProcessGDBRemote::ClearThreadIDList ()
 {
     Mutex::Locker locker(m_thread_list_real.GetMutex());
     m_thread_ids.clear();
+    m_thread_pcs.clear();
 }
 
 size_t
 ProcessGDBRemote::UpdateThreadIDsFromStopReplyThreadsValue (std::string &value)
 {
     m_thread_ids.clear();
+    m_thread_pcs.clear();
     size_t comma_pos;
     lldb::tid_t tid;
     while ((comma_pos = value.find(',')) != std::string::npos)
@@ -1717,18 +1777,39 @@ ProcessGDBRemote::UpdateThreadIDsFromStopReplyThreadsValue (std::string &value)
     return m_thread_ids.size();
 }
 
+size_t
+ProcessGDBRemote::UpdateThreadPCsFromStopReplyThreadsValue (std::string &value)
+{
+    m_thread_pcs.clear();
+    size_t comma_pos;
+    lldb::addr_t pc;
+    while ((comma_pos = value.find(',')) != std::string::npos)
+    {
+        value[comma_pos] = '\0';
+        pc = StringConvert::ToUInt64 (value.c_str(), LLDB_INVALID_ADDRESS, 16);
+        if (pc != LLDB_INVALID_ADDRESS)
+            m_thread_pcs.push_back (pc);
+        value.erase(0, comma_pos + 1);
+    }
+    pc = StringConvert::ToUInt64 (value.c_str(), LLDB_INVALID_ADDRESS, 16);
+    if (pc != LLDB_INVALID_THREAD_ID)
+        m_thread_pcs.push_back (pc);
+    return m_thread_pcs.size();
+}
+
 bool
 ProcessGDBRemote::UpdateThreadIDList ()
 {
     Mutex::Locker locker(m_thread_list_real.GetMutex());
 
-    if (m_threads_info_sp)
+    if (m_jthreadsinfo_sp)
     {
         // If we have the JSON threads info, we can get the thread list from that
-        StructuredData::Array *thread_infos = m_threads_info_sp->GetAsArray();
+        StructuredData::Array *thread_infos = m_jthreadsinfo_sp->GetAsArray();
         if (thread_infos && thread_infos->GetSize() > 0)
         {
             m_thread_ids.clear();
+            m_thread_pcs.clear();
             thread_infos->ForEach([this](StructuredData::Object* object) -> bool {
                 StructuredData::Dictionary *thread_dict = object->GetAsDictionary();
                 if (thread_dict)
@@ -1751,25 +1832,43 @@ ProcessGDBRemote::UpdateThreadIDList ()
         // that might contain a "threads" key/value pair
 
         // Lock the thread stack while we access it
-        Mutex::Locker stop_stack_lock(m_last_stop_packet_mutex);
-        // Get the number of stop packets on the stack
-        int nItems = m_stop_packet_stack.size();
-        // Iterate over them
-        for (int i = 0; i < nItems; i++)
+        //Mutex::Locker stop_stack_lock(m_last_stop_packet_mutex);
+        Mutex::Locker stop_stack_lock;
+        if (stop_stack_lock.TryLock(m_last_stop_packet_mutex))
         {
-            // Get the thread stop info
-            StringExtractorGDBRemote &stop_info = m_stop_packet_stack[i];
-            const std::string &stop_info_str = stop_info.GetStringRef();
-            const size_t threads_pos = stop_info_str.find(";threads:");
-            if (threads_pos != std::string::npos)
+            // Get the number of stop packets on the stack
+            int nItems = m_stop_packet_stack.size();
+            // Iterate over them
+            for (int i = 0; i < nItems; i++)
             {
-                const size_t start = threads_pos + strlen(";threads:");
-                const size_t end = stop_info_str.find(';', start);
-                if (end != std::string::npos)
+                // Get the thread stop info
+                StringExtractorGDBRemote &stop_info = m_stop_packet_stack[i];
+                const std::string &stop_info_str = stop_info.GetStringRef();
+
+                m_thread_pcs.clear();
+                const size_t thread_pcs_pos = stop_info_str.find(";thread-pcs:");
+                if (thread_pcs_pos != std::string::npos)
+                {
+                    const size_t start = thread_pcs_pos + strlen(";thread-pcs:");
+                    const size_t end = stop_info_str.find(';', start);
+                    if (end != std::string::npos)
+                    {
+                        std::string value = stop_info_str.substr(start, end - start);
+                        UpdateThreadPCsFromStopReplyThreadsValue(value);
+                    }
+                }
+
+                const size_t threads_pos = stop_info_str.find(";threads:");
+                if (threads_pos != std::string::npos)
                 {
-                    std::string value = stop_info_str.substr(start, end - start);
-                    if (UpdateThreadIDsFromStopReplyThreadsValue(value))
-                        return true;
+                    const size_t start = threads_pos + strlen(";threads:");
+                    const size_t end = stop_info_str.find(';', start);
+                    if (end != std::string::npos)
+                    {
+                        std::string value = stop_info_str.substr(start, end - start);
+                        if (UpdateThreadIDsFromStopReplyThreadsValue(value))
+                            return true;
+                    }
                 }
             }
         }
@@ -1826,6 +1925,25 @@ ProcessGDBRemote::UpdateThreadList (ThreadList &old_thread_list, ThreadList &new
                            __FUNCTION__, static_cast<void*>(thread_sp.get()),
                            thread_sp->GetID());
             }
+            // The m_thread_pcs vector has pc values in big-endian order, not target-endian, unlike most
+            // of the register read/write packets in gdb-remote protocol.  
+            // Early in the process startup, we may not yet have set the process ByteOrder so we ignore these;
+            // they are a performance improvement over fetching thread register values individually, the
+            // method we will fall back to if needed.
+            if (m_thread_ids.size() == m_thread_pcs.size() && thread_sp.get() && GetByteOrder() != eByteOrderInvalid)
+            {
+                ThreadGDBRemote *gdb_thread = static_cast<ThreadGDBRemote *> (thread_sp.get());
+                RegisterContextSP reg_ctx_sp (thread_sp->GetRegisterContext());
+                if (reg_ctx_sp)
+                {
+                    uint32_t pc_regnum = reg_ctx_sp->ConvertRegisterKindToRegisterNumber 
+                                                                   (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC);
+                    if (pc_regnum != LLDB_INVALID_REGNUM)
+                    {
+                        gdb_thread->PrivateSetRegisterValue (pc_regnum, m_thread_pcs[i]);
+                    }
+                }
+            }
             new_thread_list.AddThread(thread_sp);
         }
     }
@@ -1846,13 +1964,14 @@ ProcessGDBRemote::UpdateThreadList (ThreadList &old_thread_list, ThreadList &new
     return true;
 }
 
+
 bool
-ProcessGDBRemote::CalculateThreadStopInfo (ThreadGDBRemote *thread)
+ProcessGDBRemote::GetThreadStopInfoFromJSON (ThreadGDBRemote *thread, const StructuredData::ObjectSP &thread_infos_sp)
 {
     // See if we got thread stop infos for all threads via the "jThreadsInfo" packet
-    if (m_threads_info_sp)
+    if (thread_infos_sp)
     {
-        StructuredData::Array *thread_infos = m_threads_info_sp->GetAsArray();
+        StructuredData::Array *thread_infos = thread_infos_sp->GetAsArray();
         if (thread_infos)
         {
             lldb::tid_t tid;
@@ -1865,12 +1984,36 @@ ProcessGDBRemote::CalculateThreadStopInfo (ThreadGDBRemote *thread)
                     if (thread_dict->GetValueForKeyAsInteger<lldb::tid_t>("tid", tid, LLDB_INVALID_THREAD_ID))
                     {
                         if (tid == thread->GetID())
-                            return SetThreadStopInfo(thread_dict);
+                            return (bool)SetThreadStopInfo(thread_dict);
                     }
                 }
             }
         }
     }
+    return false;
+}
+
+bool
+ProcessGDBRemote::CalculateThreadStopInfo (ThreadGDBRemote *thread)
+{
+    // See if we got thread stop infos for all threads via the "jThreadsInfo" packet
+    if (GetThreadStopInfoFromJSON (thread, m_jthreadsinfo_sp))
+        return true;
+
+    // See if we got thread stop info for any threads valid stop info reasons threads
+    // via the "jstopinfo" packet stop reply packet key/value pair?
+    if (m_jstopinfo_sp)
+    {
+        // If we have "jstopinfo" then we have stop descriptions for all threads
+        // that have stop reasons, and if there is no entry for a thread, then
+        // it has no stop reason.
+        thread->GetRegisterContext()->InvalidateIfNeeded(true);
+        if (!GetThreadStopInfoFromJSON (thread, m_jstopinfo_sp))
+        {
+            thread->SetStopInfo (StopInfoSP());
+        }
+        return true;
+    }
 
     // Fall back to using the qThreadStopInfo packet
     StringExtractorGDBRemote stop_packet;
@@ -1926,8 +2069,6 @@ ProcessGDBRemote::SetThreadStopInfo (lldb::tid_t tid,
                 gdb_thread->PrivateSetRegisterValue (pair.first, reg_value_extractor);
             }
 
-            // Clear the stop info just in case we don't set it to anything
-            thread_sp->SetStopInfo (StopInfoSP());
             thread_sp->SetName (thread_name.empty() ? NULL : thread_name.c_str());
 
             gdb_thread->SetThreadDispatchQAddr (thread_dispatch_qaddr);
@@ -1937,145 +2078,159 @@ ProcessGDBRemote::SetThreadStopInfo (lldb::tid_t tid,
             else
                 gdb_thread->ClearQueueInfo();
 
-
-            if (exc_type != 0)
-            {
-                const size_t exc_data_size = exc_data.size();
-
-                thread_sp->SetStopInfo (StopInfoMachException::CreateStopReasonWithMachException (*thread_sp,
-                                                                                                  exc_type,
-                                                                                                  exc_data_size,
-                                                                                                  exc_data_size >= 1 ? exc_data[0] : 0,
-                                                                                                  exc_data_size >= 2 ? exc_data[1] : 0,
-                                                                                                  exc_data_size >= 3 ? exc_data[2] : 0));
-            }
-            else
+            // Make sure we update our thread stop reason just once
+            if (!thread_sp->StopInfoIsUpToDate())
             {
-                bool handled = false;
-                bool did_exec = false;
-                if (!reason.empty())
+                thread_sp->SetStopInfo (StopInfoSP());
+                // If there's a memory thread backed by this thread, we need to use it to calcualte StopInfo.
+                ThreadSP memory_thread_sp = m_thread_list.FindThreadByProtocolID(thread_sp->GetProtocolID());
+                if (memory_thread_sp)
+                    thread_sp = memory_thread_sp;
+
+                if (exc_type != 0)
                 {
-                    if (reason.compare("trace") == 0)
-                    {
-                        thread_sp->SetStopInfo (StopInfo::CreateStopReasonToTrace (*thread_sp));
-                        handled = true;
-                    }
-                    else if (reason.compare("breakpoint") == 0)
+                    const size_t exc_data_size = exc_data.size();
+
+                    thread_sp->SetStopInfo (StopInfoMachException::CreateStopReasonWithMachException (*thread_sp,
+                                                                                                      exc_type,
+                                                                                                      exc_data_size,
+                                                                                                      exc_data_size >= 1 ? exc_data[0] : 0,
+                                                                                                      exc_data_size >= 2 ? exc_data[1] : 0,
+                                                                                                      exc_data_size >= 3 ? exc_data[2] : 0));
+                }
+                else
+                {
+                    bool handled = false;
+                    bool did_exec = false;
+                    if (!reason.empty())
                     {
-                        addr_t pc = thread_sp->GetRegisterContext()->GetPC();
-                        lldb::BreakpointSiteSP bp_site_sp = thread_sp->GetProcess()->GetBreakpointSiteList().FindByAddress(pc);
-                        if (bp_site_sp)
+                        if (reason.compare("trace") == 0)
                         {
-                            // If the breakpoint is for this thread, then we'll report the hit, but if it is for another thread,
-                            // we can just report no reason.  We don't need to worry about stepping over the breakpoint here, that
-                            // will be taken care of when the thread resumes and notices that there's a breakpoint under the pc.
+                            thread_sp->SetStopInfo (StopInfo::CreateStopReasonToTrace (*thread_sp));
                             handled = true;
-                            if (bp_site_sp->ValidForThisThread (thread_sp.get()))
-                            {
-                                thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithBreakpointSiteID (*thread_sp, bp_site_sp->GetID()));
-                            }
-                            else
+                        }
+                        else if (reason.compare("breakpoint") == 0)
+                        {
+                            addr_t pc = thread_sp->GetRegisterContext()->GetPC();
+                            lldb::BreakpointSiteSP bp_site_sp = thread_sp->GetProcess()->GetBreakpointSiteList().FindByAddress(pc);
+                            if (bp_site_sp)
                             {
-                                StopInfoSP invalid_stop_info_sp;
-                                thread_sp->SetStopInfo (invalid_stop_info_sp);
+                                // If the breakpoint is for this thread, then we'll report the hit, but if it is for another thread,
+                                // we can just report no reason.  We don't need to worry about stepping over the breakpoint here, that
+                                // will be taken care of when the thread resumes and notices that there's a breakpoint under the pc.
+                                handled = true;
+                                if (bp_site_sp->ValidForThisThread (thread_sp.get()))
+                                {
+                                    thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithBreakpointSiteID (*thread_sp, bp_site_sp->GetID()));
+                                }
+                                else
+                                {
+                                    StopInfoSP invalid_stop_info_sp;
+                                    thread_sp->SetStopInfo (invalid_stop_info_sp);
+                                }
                             }
                         }
-                    }
-                    else if (reason.compare("trap") == 0)
-                    {
-                        // Let the trap just use the standard signal stop reason below...
-                    }
-                    else if (reason.compare("watchpoint") == 0)
-                    {
-                        StringExtractor desc_extractor(description.c_str());
-                        addr_t wp_addr = desc_extractor.GetU64(LLDB_INVALID_ADDRESS);
-                        uint32_t wp_index = desc_extractor.GetU32(LLDB_INVALID_INDEX32);
-                        addr_t wp_hit_addr = desc_extractor.GetU64(LLDB_INVALID_ADDRESS);
-                        watch_id_t watch_id = LLDB_INVALID_WATCH_ID;
-                        if (wp_addr != LLDB_INVALID_ADDRESS)
+                        else if (reason.compare("trap") == 0)
                         {
-                            WatchpointSP wp_sp = GetTarget().GetWatchpointList().FindByAddress(wp_addr);
-                            if (wp_sp)
+                            // Let the trap just use the standard signal stop reason below...
+                        }
+                        else if (reason.compare("watchpoint") == 0)
+                        {
+                            StringExtractor desc_extractor(description.c_str());
+                            addr_t wp_addr = desc_extractor.GetU64(LLDB_INVALID_ADDRESS);
+                            uint32_t wp_index = desc_extractor.GetU32(LLDB_INVALID_INDEX32);
+                            addr_t wp_hit_addr = desc_extractor.GetU64(LLDB_INVALID_ADDRESS);
+                            watch_id_t watch_id = LLDB_INVALID_WATCH_ID;
+                            if (wp_addr != LLDB_INVALID_ADDRESS)
+                            {
+                                WatchpointSP wp_sp;
+                                ArchSpec::Core core = GetTarget().GetArchitecture().GetCore();
+                                if (core >= ArchSpec::kCore_mips_first && core <= ArchSpec::kCore_mips_last)
+                                    wp_sp = GetTarget().GetWatchpointList().FindByAddress(wp_hit_addr);
+                                if (!wp_sp)
+                                    wp_sp = GetTarget().GetWatchpointList().FindByAddress(wp_addr);
+                                if (wp_sp)
+                                {
+                                    wp_sp->SetHardwareIndex(wp_index);
+                                    watch_id = wp_sp->GetID();
+                                }
+                            }
+                            if (watch_id == LLDB_INVALID_WATCH_ID)
                             {
-                                wp_sp->SetHardwareIndex(wp_index);
-                                watch_id = wp_sp->GetID();
+                                Log *log (ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (GDBR_LOG_WATCHPOINTS));
+                                if (log) log->Printf ("failed to find watchpoint");
                             }
+                            thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithWatchpointID (*thread_sp, watch_id, wp_hit_addr));
+                            handled = true;
                         }
-                        if (watch_id == LLDB_INVALID_WATCH_ID)
+                        else if (reason.compare("exception") == 0)
                         {
-                            Log *log (ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (GDBR_LOG_WATCHPOINTS));
-                            if (log) log->Printf ("failed to find watchpoint");
+                            thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithException(*thread_sp, description.c_str()));
+                            handled = true;
+                        }
+                        else if (reason.compare("exec") == 0)
+                        {
+                            did_exec = true;
+                            thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithExec(*thread_sp));
+                            handled = true;
                         }
-                        thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithWatchpointID (*thread_sp, watch_id, wp_hit_addr));
-                        handled = true;
-                    }
-                    else if (reason.compare("exception") == 0)
-                    {
-                        thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithException(*thread_sp, description.c_str()));
-                        handled = true;
-                    }
-                    else if (reason.compare("exec") == 0)
-                    {
-                        did_exec = true;
-                        thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithExec(*thread_sp));
-                        handled = true;
                     }
-                }
 
-                if (!handled && signo && did_exec == false)
-                {
-                    if (signo == SIGTRAP)
+                    if (!handled && signo && did_exec == false)
                     {
-                        // Currently we are going to assume SIGTRAP means we are either
-                        // hitting a breakpoint or hardware single stepping.
-                        handled = true;
-                        addr_t pc = thread_sp->GetRegisterContext()->GetPC() + m_breakpoint_pc_offset;
-                        lldb::BreakpointSiteSP bp_site_sp = thread_sp->GetProcess()->GetBreakpointSiteList().FindByAddress(pc);
-
-                        if (bp_site_sp)
+                        if (signo == SIGTRAP)
                         {
-                            // If the breakpoint is for this thread, then we'll report the hit, but if it is for another thread,
-                            // we can just report no reason.  We don't need to worry about stepping over the breakpoint here, that
-                            // will be taken care of when the thread resumes and notices that there's a breakpoint under the pc.
-                            if (bp_site_sp->ValidForThisThread (thread_sp.get()))
+                            // Currently we are going to assume SIGTRAP means we are either
+                            // hitting a breakpoint or hardware single stepping.
+                            handled = true;
+                            addr_t pc = thread_sp->GetRegisterContext()->GetPC() + m_breakpoint_pc_offset;
+                            lldb::BreakpointSiteSP bp_site_sp = thread_sp->GetProcess()->GetBreakpointSiteList().FindByAddress(pc);
+
+                            if (bp_site_sp)
                             {
-                                if(m_breakpoint_pc_offset != 0)
-                                    thread_sp->GetRegisterContext()->SetPC(pc);
-                                thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithBreakpointSiteID (*thread_sp, bp_site_sp->GetID()));
+                                // If the breakpoint is for this thread, then we'll report the hit, but if it is for another thread,
+                                // we can just report no reason.  We don't need to worry about stepping over the breakpoint here, that
+                                // will be taken care of when the thread resumes and notices that there's a breakpoint under the pc.
+                                if (bp_site_sp->ValidForThisThread (thread_sp.get()))
+                                {
+                                    if(m_breakpoint_pc_offset != 0)
+                                        thread_sp->GetRegisterContext()->SetPC(pc);
+                                    thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithBreakpointSiteID (*thread_sp, bp_site_sp->GetID()));
+                                }
+                                else
+                                {
+                                    StopInfoSP invalid_stop_info_sp;
+                                    thread_sp->SetStopInfo (invalid_stop_info_sp);
+                                }
                             }
                             else
                             {
-                                StopInfoSP invalid_stop_info_sp;
-                                thread_sp->SetStopInfo (invalid_stop_info_sp);
+                                // If we were stepping then assume the stop was the result of the trace.  If we were
+                                // not stepping then report the SIGTRAP.
+                                // FIXME: We are still missing the case where we single step over a trap instruction.
+                                if (thread_sp->GetTemporaryResumeState() == eStateStepping)
+                                    thread_sp->SetStopInfo (StopInfo::CreateStopReasonToTrace (*thread_sp));
+                                else
+                                    thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithSignal(*thread_sp, signo, description.c_str()));
                             }
                         }
-                        else
-                        {
-                            // If we were stepping then assume the stop was the result of the trace.  If we were
-                            // not stepping then report the SIGTRAP.
-                            // FIXME: We are still missing the case where we single step over a trap instruction.
-                            if (thread_sp->GetTemporaryResumeState() == eStateStepping)
-                                thread_sp->SetStopInfo (StopInfo::CreateStopReasonToTrace (*thread_sp));
-                            else
-                                thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithSignal(*thread_sp, signo, description.c_str()));
-                        }
+                        if (!handled)
+                            thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithSignal (*thread_sp, signo, description.c_str()));
                     }
-                    if (!handled)
-                        thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithSignal (*thread_sp, signo, description.c_str()));
-                }
 
-                if (!description.empty())
-                {
-                    lldb::StopInfoSP stop_info_sp (thread_sp->GetStopInfo ());
-                    if (stop_info_sp)
-                    {
-                        const char *stop_info_desc = stop_info_sp->GetDescription();
-                        if (!stop_info_desc || !stop_info_desc[0])
-                            stop_info_sp->SetDescription (description.c_str());
-                    }
-                    else
+                    if (!description.empty())
                     {
-                        thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithException (*thread_sp, description.c_str()));
+                        lldb::StopInfoSP stop_info_sp (thread_sp->GetStopInfo ());
+                        if (stop_info_sp)
+                        {
+                            const char *stop_info_desc = stop_info_sp->GetDescription();
+                            if (!stop_info_desc || !stop_info_desc[0])
+                                stop_info_sp->SetDescription (description.c_str());
+                        }
+                        else
+                        {
+                            thread_sp->SetStopInfo (StopInfo::CreateStopReasonWithException (*thread_sp, description.c_str()));
+                        }
                     }
                 }
             }
@@ -2084,7 +2239,7 @@ ProcessGDBRemote::SetThreadStopInfo (lldb::tid_t tid,
     return thread_sp;
 }
 
-StateType
+lldb::ThreadSP
 ProcessGDBRemote::SetThreadStopInfo (StructuredData::Dictionary *thread_dict)
 {
     static ConstString g_key_tid("tid");
@@ -2101,6 +2256,7 @@ ProcessGDBRemote::SetThreadStopInfo (StructuredData::Dictionary *thread_dict)
     static ConstString g_key_address("address");
     static ConstString g_key_bytes("bytes");
     static ConstString g_key_description("description");
+    static ConstString g_key_signal("signal");
 
     // Stop with signal and thread info
     lldb::tid_t tid = LLDB_INVALID_THREAD_ID;
@@ -2159,7 +2315,7 @@ ProcessGDBRemote::SetThreadStopInfo (StructuredData::Dictionary *thread_dict)
         }
         else if (key == g_key_name)
         {
-            thread_name = std::move(object->GetStringValue());
+            thread_name = object->GetStringValue();
         }
         else if (key == g_key_qaddr)
         {
@@ -2168,7 +2324,7 @@ ProcessGDBRemote::SetThreadStopInfo (StructuredData::Dictionary *thread_dict)
         else if (key == g_key_queue_name)
         {
             queue_vars_valid = true;
-            queue_name = std::move(object->GetStringValue());
+            queue_name = object->GetStringValue();
         }
         else if (key == g_key_queue_kind)
         {
@@ -2192,11 +2348,11 @@ ProcessGDBRemote::SetThreadStopInfo (StructuredData::Dictionary *thread_dict)
         }
         else if (key == g_key_reason)
         {
-            reason = std::move(object->GetStringValue());
+            reason = object->GetStringValue();
         }
         else if (key == g_key_description)
         {
-            description = std::move(object->GetStringValue());
+            description = object->GetStringValue();
         }
         else if (key == g_key_registers)
         {
@@ -2207,7 +2363,7 @@ ProcessGDBRemote::SetThreadStopInfo (StructuredData::Dictionary *thread_dict)
                 registers_dict->ForEach([&expedited_register_map](ConstString key, StructuredData::Object* object) -> bool {
                     const uint32_t reg = StringConvert::ToUInt32 (key.GetCString(), UINT32_MAX, 10);
                     if (reg != UINT32_MAX)
-                        expedited_register_map[reg] = std::move(object->GetStringValue());
+                        expedited_register_map[reg] = object->GetStringValue();
                     return true; // Keep iterating through all array items
                 });
             }
@@ -2245,24 +2401,24 @@ ProcessGDBRemote::SetThreadStopInfo (StructuredData::Dictionary *thread_dict)
             }
 
         }
+        else if (key == g_key_signal)
+            signo = object->GetIntegerValue(LLDB_INVALID_SIGNAL_NUMBER);
         return true; // Keep iterating through all dictionary key/value pairs
     });
 
-    SetThreadStopInfo (tid,
-                       expedited_register_map,
-                       signo,
-                       thread_name,
-                       reason,
-                       description,
-                       exc_type,
-                       exc_data,
-                       thread_dispatch_qaddr,
-                       queue_vars_valid,
-                       queue_name,
-                       queue_kind,
-                       queue_serial);
-
-    return eStateExited;
+    return SetThreadStopInfo (tid,
+                              expedited_register_map,
+                              signo,
+                              thread_name,
+                              reason,
+                              description,
+                              exc_type,
+                              exc_data,
+                              thread_dispatch_qaddr,
+                              queue_vars_valid,
+                              queue_name,
+                              queue_kind,
+                              queue_serial);
 }
 
 StateType
@@ -2348,6 +2504,39 @@ ProcessGDBRemote::SetThreadStopInfo (StringExtractor& stop_packet)
                     if (tid != LLDB_INVALID_THREAD_ID)
                         m_thread_ids.push_back (tid);
                 }
+                else if (key.compare("thread-pcs") == 0)
+                {
+                    m_thread_pcs.clear();
+                    // A comma separated list of all threads in the current
+                    // process that includes the thread for this stop reply
+                    // packet
+                    size_t comma_pos;
+                    lldb::addr_t pc;
+                    while ((comma_pos = value.find(',')) != std::string::npos)
+                    {
+                        value[comma_pos] = '\0';
+                        // thread in big endian hex
+                        pc = StringConvert::ToUInt64 (value.c_str(), LLDB_INVALID_ADDRESS, 16);
+                        if (pc != LLDB_INVALID_ADDRESS)
+                            m_thread_pcs.push_back (pc);
+                        value.erase(0, comma_pos + 1);
+                    }
+                    pc = StringConvert::ToUInt64 (value.c_str(), LLDB_INVALID_ADDRESS, 16);
+                    if (pc != LLDB_INVALID_ADDRESS)
+                        m_thread_pcs.push_back (pc);
+                }
+                else if (key.compare("jstopinfo") == 0)
+                {
+                    StringExtractor json_extractor;
+                    // Swap "value" over into "name_extractor"
+                    json_extractor.GetStringRef().swap(value);
+                    // Now convert the HEX bytes into a string value
+                    json_extractor.GetHexByteString (value);
+
+                    // This JSON contains thread IDs and thread stop info for all threads.
+                    // It doesn't contain expedited registers, memory or queue info.
+                    m_jstopinfo_sp = StructuredData::ParseJSON (value);
+                }
                 else if (key.compare("hexname") == 0)
                 {
                     StringExtractor name_extractor;
@@ -2431,7 +2620,7 @@ ProcessGDBRemote::SetThreadStopInfo (StringExtractor& stop_packet)
                         if (mem_cache_addr != LLDB_INVALID_ADDRESS)
                         {
                             StringExtractor bytes;
-                            bytes.GetStringRef() = std::move(pair.second.str());
+                            bytes.GetStringRef() = pair.second.str();
                             const size_t byte_size = bytes.GetStringRef().size()/2;
                             DataBufferSP data_buffer_sp(new DataBufferHeap(byte_size, 0));
                             const size_t bytes_copied = bytes.GetHexBytes (data_buffer_sp->GetBytes(), byte_size, 0);
@@ -2455,6 +2644,10 @@ ProcessGDBRemote::SetThreadStopInfo (StringExtractor& stop_packet)
                     ostr.Printf("%" PRIu64 " %" PRIu32, wp_addr, wp_index);
                     description = ostr.GetString().c_str();
                 }
+                else if (key.compare("library") == 0)
+                {
+                    LoadModules();
+                }
                 else if (key.size() == 2 && ::isxdigit(key[0]) && ::isxdigit(key[1]))
                 {
                     uint32_t reg = StringConvert::ToUInt32 (key.c_str(), UINT32_MAX, 16);
@@ -2509,6 +2702,7 @@ ProcessGDBRemote::RefreshStateAfterStop ()
 {
     Mutex::Locker locker(m_thread_list_real.GetMutex());
     m_thread_ids.clear();
+    m_thread_pcs.clear();
     // Set the thread stop info. It might have a "threads" key whose value is
     // a list of all thread IDs in the current process, so m_thread_ids might
     // get set.
@@ -2545,11 +2739,6 @@ ProcessGDBRemote::RefreshStateAfterStop ()
         m_initial_tid = LLDB_INVALID_THREAD_ID;
     }
 
-    // Fetch the threads via an efficient packet that gets stop infos for all threads
-    // only if we have more than one thread
-    if (m_thread_ids.size() > 1)
-        m_threads_info_sp = m_gdb_comm.GetThreadsInfo();
-
     // Let all threads recover from stopping and do any clean up based
     // on the previous thread state (if any).
     m_thread_list_real.RefreshStateAfterStop();
@@ -2824,6 +3013,12 @@ ProcessGDBRemote::SetLastStopPacket (const StringExtractorGDBRemote &response)
     {
         // Lock the thread stack while we access it
         Mutex::Locker stop_stack_lock(m_last_stop_packet_mutex);
+
+        // We are are not using non-stop mode, there can only be one last stop
+        // reply packet, so clear the list.
+        if (GetTarget().GetNonStopModeEnabled() == false)
+            m_stop_packet_stack.clear();
+
         // Add this stop packet to the stop packet stack
         // This stack will get popped and examined when we switch to the
         // Stopped state
@@ -2831,6 +3026,11 @@ ProcessGDBRemote::SetLastStopPacket (const StringExtractorGDBRemote &response)
     }
 }
 
+void
+ProcessGDBRemote::SetUnixSignals(const UnixSignalsSP &signals_sp)
+{
+    Process::SetUnixSignals(std::make_shared<GDBRemoteSignals>(signals_sp));
+}
 
 //------------------------------------------------------------------
 // Process Queries
@@ -2839,7 +3039,7 @@ ProcessGDBRemote::SetLastStopPacket (const StringExtractorGDBRemote &response)
 bool
 ProcessGDBRemote::IsAlive ()
 {
-    return m_gdb_comm.IsConnected() && m_private_state.GetValue() != eStateExited;
+    return m_gdb_comm.IsConnected() && Process::IsAlive();
 }
 
 addr_t
@@ -2859,6 +3059,35 @@ ProcessGDBRemote::GetImageInfoAddress()
     return addr;
 }
 
+void
+ProcessGDBRemote::WillPublicStop ()
+{
+    // See if the GDB remote client supports the JSON threads info.
+    // If so, we gather stop info for all threads, expedited registers,
+    // expedited memory, runtime queue information (iOS and MacOSX only),
+    // and more. Expediting memory will help stack backtracing be much
+    // faster. Expediting registers will make sure we don't have to read
+    // the thread registers for GPRs.
+    m_jthreadsinfo_sp = m_gdb_comm.GetThreadsInfo();
+
+    if (m_jthreadsinfo_sp)
+    {
+        // Now set the stop info for each thread and also expedite any registers
+        // and memory that was in the jThreadsInfo response.
+        StructuredData::Array *thread_infos = m_jthreadsinfo_sp->GetAsArray();
+        if (thread_infos)
+        {
+            const size_t n = thread_infos->GetSize();
+            for (size_t i=0; i<n; ++i)
+            {
+                StructuredData::Dictionary *thread_dict = thread_infos->GetItemAtIndex(i)->GetAsDictionary();
+                if (thread_dict)
+                    SetThreadStopInfo(thread_dict);
+            }
+        }
+    }
+}
+
 //------------------------------------------------------------------
 // Process Memory
 //------------------------------------------------------------------
@@ -2877,14 +3106,8 @@ ProcessGDBRemote::DoReadMemory (addr_t addr, void *buf, size_t size, Error &erro
     char packet[64];
     int packet_len;
     bool binary_memory_read = m_gdb_comm.GetxPacketSupported();
-    if (binary_memory_read)
-    {
-        packet_len = ::snprintf (packet, sizeof(packet), "x0x%" PRIx64 ",0x%" PRIx64, (uint64_t)addr, (uint64_t)size);
-    }
-    else
-    {
-        packet_len = ::snprintf (packet, sizeof(packet), "m%" PRIx64 ",%" PRIx64, (uint64_t)addr, (uint64_t)size);
-    }
+    packet_len = ::snprintf(packet, sizeof(packet), "%c%" PRIx64 ",%" PRIx64,
+                            binary_memory_read ? 'x' : 'm', (uint64_t)addr, (uint64_t)size);
     assert (packet_len + 1 < (int)sizeof(packet));
     StringExtractorGDBRemote response;
     if (m_gdb_comm.SendPacketAndWaitForResponse(packet, packet_len, response, true) == GDBRemoteCommunication::PacketResult::Success)
@@ -2940,7 +3163,7 @@ ProcessGDBRemote::DoWriteMemory (addr_t addr, const void *buf, size_t size, Erro
 
     StreamString packet;
     packet.Printf("M%" PRIx64 ",%" PRIx64 ":", addr, (uint64_t)size);
-    packet.PutBytesAsRawHex8(buf, size, lldb::endian::InlHostByteOrder(), lldb::endian::InlHostByteOrder());
+    packet.PutBytesAsRawHex8(buf, size, endian::InlHostByteOrder(), endian::InlHostByteOrder());
     StringExtractorGDBRemote response;
     if (m_gdb_comm.SendPacketAndWaitForResponse(packet.GetData(), packet.GetSize(), response, true) == GDBRemoteCommunication::PacketResult::Success)
     {
@@ -3377,6 +3600,27 @@ ProcessGDBRemote::DoSignal (int signo)
 }
 
 Error
+ProcessGDBRemote::EstablishConnectionIfNeeded (const ProcessInfo &process_info)
+{
+    // Make sure we aren't already connected?
+    if (m_gdb_comm.IsConnected())
+        return Error();
+
+    PlatformSP platform_sp (GetTarget ().GetPlatform ());
+    if (platform_sp && !platform_sp->IsHost ())
+        return Error("Lost debug server connection");
+
+    auto error = LaunchAndConnectToDebugserver (process_info);
+    if (error.Fail())
+    {
+        const char *error_string = error.AsCString();
+        if (error_string == nullptr)
+            error_string = "unable to launch " DEBUGSERVER_BASENAME;
+    }
+    return error;
+}
+
+Error
 ProcessGDBRemote::LaunchAndConnectToDebugserver (const ProcessInfo &process_info)
 {
     Error error;
@@ -3401,14 +3645,22 @@ ProcessGDBRemote::LaunchAndConnectToDebugserver (const ProcessInfo &process_info
         // Set hostname being NULL to do the reverse connect where debugserver
         // will bind to port zero and it will communicate back to us the port
         // that we will connect to
-        const char *hostname = NULL;
+        const char *hostname = nullptr;
         uint16_t port = 0;
 #endif
 
-        error = m_gdb_comm.StartDebugserverProcess (hostname,
-                                                    port,
+        StreamString url_str;
+        const char* url = nullptr;
+        if (hostname != nullptr)
+        {
+            url_str.Printf("%s:%u", hostname, port);
+            url = url_str.GetData();
+        }
+
+        error = m_gdb_comm.StartDebugserverProcess (url,
+                                                    GetTarget().GetPlatform().get(),
                                                     debugserver_launch_info,
-                                                    port);
+                                                    &port);
 
         if (error.Success ())
             m_debugserver_pid = debugserver_launch_info.GetProcessID();
@@ -3653,164 +3905,174 @@ ProcessGDBRemote::AsyncThread (void *arg)
     if (log)
         log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") thread starting...", __FUNCTION__, arg, process->GetID());
 
-    Listener listener ("ProcessGDBRemote::AsyncThread");
     EventSP event_sp;
-    const uint32_t desired_event_mask = eBroadcastBitAsyncContinue |
-                                        eBroadcastBitAsyncThreadShouldExit;
-
-    if (listener.StartListeningForEvents (&process->m_async_broadcaster, desired_event_mask) == desired_event_mask)
+    bool done = false;
+    while (!done)
     {
-        listener.StartListeningForEvents (&process->m_gdb_comm, Communication::eBroadcastBitReadThreadDidExit |
-                                                                GDBRemoteCommunication::eBroadcastBitGdbReadThreadGotNotify);
-
-        bool done = false;
-        while (!done)
+        if (log)
+            log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") listener.WaitForEvent (NULL, event_sp)...", __FUNCTION__, arg, process->GetID());
+        if (process->m_async_listener.WaitForEvent (NULL, event_sp))
         {
-            if (log)
-                log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") listener.WaitForEvent (NULL, event_sp)...", __FUNCTION__, arg, process->GetID());
-            if (listener.WaitForEvent (NULL, event_sp))
+            const uint32_t event_type = event_sp->GetType();
+            if (event_sp->BroadcasterIs (&process->m_async_broadcaster))
             {
-                const uint32_t event_type = event_sp->GetType();
-                if (event_sp->BroadcasterIs (&process->m_async_broadcaster))
+                if (log)
+                    log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") Got an event of type: %d...", __FUNCTION__, arg, process->GetID(), event_type);
+
+                switch (event_type)
                 {
-                    if (log)
-                        log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") Got an event of type: %d...", __FUNCTION__, arg, process->GetID(), event_type);
+                    case eBroadcastBitAsyncContinue:
+                        {
+                            const EventDataBytes *continue_packet = EventDataBytes::GetEventDataFromEvent(event_sp.get());
 
-                    switch (event_type)
-                    {
-                        case eBroadcastBitAsyncContinue:
+                            if (continue_packet)
                             {
-                                const EventDataBytes *continue_packet = EventDataBytes::GetEventDataFromEvent(event_sp.get());
+                                const char *continue_cstr = (const char *)continue_packet->GetBytes ();
+                                const size_t continue_cstr_len = continue_packet->GetByteSize ();
+                                if (log)
+                                    log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") got eBroadcastBitAsyncContinue: %s", __FUNCTION__, arg, process->GetID(), continue_cstr);
 
-                                if (continue_packet)
+                                if (::strstr (continue_cstr, "vAttach") == NULL)
+                                    process->SetPrivateState(eStateRunning);
+                                StringExtractorGDBRemote response;
+
+                                // If in Non-Stop-Mode
+                                if (process->GetTarget().GetNonStopModeEnabled())
                                 {
-                                    const char *continue_cstr = (const char *)continue_packet->GetBytes ();
-                                    const size_t continue_cstr_len = continue_packet->GetByteSize ();
-                                    if (log)
-                                        log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") got eBroadcastBitAsyncContinue: %s", __FUNCTION__, arg, process->GetID(), continue_cstr);
-
-                                    if (::strstr (continue_cstr, "vAttach") == NULL)
-                                        process->SetPrivateState(eStateRunning);
-                                    StringExtractorGDBRemote response;
-  
-                                    // If in Non-Stop-Mode
-                                    if (process->GetTarget().GetNonStopModeEnabled())
+                                    // send the vCont packet
+                                    if (!process->GetGDBRemote().SendvContPacket(process, continue_cstr, continue_cstr_len, response))
                                     {
-                                        // send the vCont packet
-                                        if (!process->GetGDBRemote().SendvContPacket(process, continue_cstr, continue_cstr_len, response))
-                                        {
-                                            // Something went wrong
-                                            done = true;
-                                            break;
-                                        }
+                                        // Something went wrong
+                                        done = true;
+                                        break;
                                     }
-                                    // If in All-Stop-Mode
-                                    else
-                                    {
-                                        StateType stop_state = process->GetGDBRemote().SendContinuePacketAndWaitForResponse (process, continue_cstr, continue_cstr_len, response);
-
-                                        // We need to immediately clear the thread ID list so we are sure to get a valid list of threads.
-                                        // The thread ID list might be contained within the "response", or the stop reply packet that
-                                        // caused the stop. So clear it now before we give the stop reply packet to the process
-                                        // using the process->SetLastStopPacket()...
-                                        process->ClearThreadIDList ();
+                                }
+                                // If in All-Stop-Mode
+                                else
+                                {
+                                    StateType stop_state = process->GetGDBRemote().SendContinuePacketAndWaitForResponse (process, continue_cstr, continue_cstr_len, response);
 
-                                        switch (stop_state)
-                                        {
-                                        case eStateStopped:
-                                        case eStateCrashed:
-                                        case eStateSuspended:
-                                            process->SetLastStopPacket (response);
-                                            process->SetPrivateState (stop_state);
-                                            break;
+                                    // We need to immediately clear the thread ID list so we are sure to get a valid list of threads.
+                                    // The thread ID list might be contained within the "response", or the stop reply packet that
+                                    // caused the stop. So clear it now before we give the stop reply packet to the process
+                                    // using the process->SetLastStopPacket()...
+                                    process->ClearThreadIDList ();
 
-                                        case eStateExited:
+                                    switch (stop_state)
+                                    {
+                                    case eStateStopped:
+                                    case eStateCrashed:
+                                    case eStateSuspended:
+                                        process->SetLastStopPacket (response);
+                                        process->SetPrivateState (stop_state);
+                                        break;
+
+                                    case eStateExited:
+                                    {
+                                        process->SetLastStopPacket (response);
+                                        process->ClearThreadIDList();
+                                        response.SetFilePos(1);
+                                        
+                                        int exit_status = response.GetHexU8();
+                                        const char *desc_cstr = NULL;
+                                        StringExtractor extractor;
+                                        std::string desc_string;
+                                        if (response.GetBytesLeft() > 0 && response.GetChar('-') == ';')
                                         {
-                                            process->SetLastStopPacket (response);
-                                            process->ClearThreadIDList();
-                                            response.SetFilePos(1);
-                                            
-                                            int exit_status = response.GetHexU8();
-                                            const char *desc_cstr = NULL;
-                                            StringExtractor extractor;
-                                            std::string desc_string;
-                                            if (response.GetBytesLeft() > 0 && response.GetChar('-') == ';')
+                                            std::string desc_token;
+                                            while (response.GetNameColonValue (desc_token, desc_string))
                                             {
-                                                std::string desc_token;
-                                                while (response.GetNameColonValue (desc_token, desc_string))
+                                                if (desc_token == "description")
                                                 {
-                                                    if (desc_token == "description")
-                                                    {
-                                                        extractor.GetStringRef().swap(desc_string);
-                                                        extractor.SetFilePos(0);
-                                                        extractor.GetHexByteString (desc_string);
-                                                        desc_cstr = desc_string.c_str();
-                                                    }
+                                                    extractor.GetStringRef().swap(desc_string);
+                                                    extractor.SetFilePos(0);
+                                                    extractor.GetHexByteString (desc_string);
+                                                    desc_cstr = desc_string.c_str();
                                                 }
                                             }
-                                            process->SetExitStatus(exit_status, desc_cstr);
-                                            done = true;
-                                            break;
                                         }
-                                        case eStateInvalid:
+                                        process->SetExitStatus(exit_status, desc_cstr);
+                                        done = true;
+                                        break;
+                                    }
+                                    case eStateInvalid:
+                                    {
+                                        // Check to see if we were trying to attach and if we got back
+                                        // the "E87" error code from debugserver -- this indicates that
+                                        // the process is not debuggable.  Return a slightly more helpful
+                                        // error message about why the attach failed.
+                                        if (::strstr (continue_cstr, "vAttach") != NULL
+                                            && response.GetError() == 0x87)
+                                        {
+                                            process->SetExitStatus(-1, "cannot attach to process due to System Integrity Protection");
+                                        }
+                                        // E01 code from vAttach means that the attach failed
+                                        if (::strstr (continue_cstr, "vAttach") != NULL
+                                            && response.GetError() == 0x1)
+                                        {
+                                            process->SetExitStatus(-1, "unable to attach");
+                                        }
+                                        else
+                                        {
                                             process->SetExitStatus(-1, "lost connection");
+                                        }
                                             break;
+                                    }
 
-                                        default:
-                                            process->SetPrivateState (stop_state);
-                                            break;
-                                        } // switch(stop_state)
-                                    } // else // if in All-stop-mode
-                                } // if (continue_packet)
-                            } // case eBroadcastBitAysncContinue
-                            break;
+                                    default:
+                                        process->SetPrivateState (stop_state);
+                                        break;
+                                    } // switch(stop_state)
+                                } // else // if in All-stop-mode
+                            } // if (continue_packet)
+                        } // case eBroadcastBitAysncContinue
+                        break;
 
-                        case eBroadcastBitAsyncThreadShouldExit:
-                            if (log)
-                                log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") got eBroadcastBitAsyncThreadShouldExit...", __FUNCTION__, arg, process->GetID());
-                            done = true;
-                            break;
+                    case eBroadcastBitAsyncThreadShouldExit:
+                        if (log)
+                            log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") got eBroadcastBitAsyncThreadShouldExit...", __FUNCTION__, arg, process->GetID());
+                        done = true;
+                        break;
 
-                        default:
-                            if (log)
-                                log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") got unknown event 0x%8.8x", __FUNCTION__, arg, process->GetID(), event_type);
-                            done = true;
-                            break;
-                    }
+                    default:
+                        if (log)
+                            log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") got unknown event 0x%8.8x", __FUNCTION__, arg, process->GetID(), event_type);
+                        done = true;
+                        break;
                 }
-                else if (event_sp->BroadcasterIs (&process->m_gdb_comm))
+            }
+            else if (event_sp->BroadcasterIs (&process->m_gdb_comm))
+            {
+                switch (event_type)
                 {
-                    switch (event_type)
-                    {
-                        case Communication::eBroadcastBitReadThreadDidExit:
-                            process->SetExitStatus (-1, "lost connection");
-                            done = true;
-                            break;
-
-                        case GDBRemoteCommunication::eBroadcastBitGdbReadThreadGotNotify:
-                        {
-                            lldb_private::Event *event = event_sp.get();
-                            const EventDataBytes *continue_packet = EventDataBytes::GetEventDataFromEvent(event);
-                            StringExtractorGDBRemote notify((const char*)continue_packet->GetBytes());
-                            // Hand this over to the process to handle
-                            process->HandleNotifyPacket(notify);
-                            break;
-                        }
+                    case Communication::eBroadcastBitReadThreadDidExit:
+                        process->SetExitStatus (-1, "lost connection");
+                        done = true;
+                        break;
 
-                        default:
-                            if (log)
-                                log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") got unknown event 0x%8.8x", __FUNCTION__, arg, process->GetID(), event_type);
-                            done = true;
-                            break;
+                    case GDBRemoteCommunication::eBroadcastBitGdbReadThreadGotNotify:
+                    {
+                        lldb_private::Event *event = event_sp.get();
+                        const EventDataBytes *continue_packet = EventDataBytes::GetEventDataFromEvent(event);
+                        StringExtractorGDBRemote notify((const char*)continue_packet->GetBytes());
+                        // Hand this over to the process to handle
+                        process->HandleNotifyPacket(notify);
+                        break;
                     }
+
+                    default:
+                        if (log)
+                            log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") got unknown event 0x%8.8x", __FUNCTION__, arg, process->GetID(), event_type);
+                        done = true;
+                        break;
                 }
             }
-            else
-            {
-                if (log)
-                    log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") listener.WaitForEvent (NULL, event_sp) => false", __FUNCTION__, arg, process->GetID());
-                done = true;
-            }
+        }
+        else
+        {
+            if (log)
+                log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %" PRIu64 ") listener.WaitForEvent (NULL, event_sp) => false", __FUNCTION__, arg, process->GetID());
+            done = true;
         }
     }
 
@@ -3864,10 +4126,10 @@ ProcessGDBRemote::StartNoticingNewThreads()
     }
     else
     {
-        PlatformSP platform_sp (m_target.GetPlatform());
+        PlatformSP platform_sp (GetTarget().GetPlatform());
         if (platform_sp)
         {
-            m_thread_create_bp_sp = platform_sp->SetThreadCreationBreakpoint(m_target);
+            m_thread_create_bp_sp = platform_sp->SetThreadCreationBreakpoint(GetTarget());
             if (m_thread_create_bp_sp)
             {
                 if (log && log->GetVerbose())
@@ -3986,6 +4248,9 @@ ProcessGDBRemote::GetLoadedDynamicLibrariesInfos (lldb::addr_t image_list_addres
 
     if (m_gdb_comm.GetLoadedDynamicLibrariesInfosSupported())
     {
+        // Scope for the scoped timeout object
+        GDBRemoteCommunication::ScopedTimeout timeout (m_gdb_comm, 10);
+
         StructuredData::ObjectSP args_dict(new StructuredData::Dictionary());
         args_dict->GetAsDictionary()->AddIntegerItem ("image_list_address", image_list_address);
         args_dict->GetAsDictionary()->AddIntegerItem ("image_count", image_count);
@@ -4009,8 +4274,6 @@ ProcessGDBRemote::GetLoadedDynamicLibrariesInfos (lldb::addr_t image_list_addres
             {
                 if (!response.Empty())
                 {
-                    // The packet has already had the 0x7d xor quoting stripped out at the
-                    // GDBRemoteCommunication packet receive level.
                     object_sp = StructuredData::ParseJSON (response.GetStringRef());
                 }
             }
@@ -4019,7 +4282,6 @@ ProcessGDBRemote::GetLoadedDynamicLibrariesInfos (lldb::addr_t image_list_addres
     return object_sp;
 }
 
-
 // Establish the largest memory read/write payloads we should use.
 // If the remote stub has a max packet size, stay under that size.
 // 
@@ -4113,6 +4375,18 @@ ProcessGDBRemote::GetModuleSpec(const FileSpec& module_file_spec,
     return true;
 }
 
+bool
+ProcessGDBRemote::GetHostOSVersion(uint32_t &major,
+                                   uint32_t &minor,
+                                   uint32_t &update)
+{
+    if (m_gdb_comm.GetOSVersion(major, minor, update))
+        return true;
+    // We failed to get the host OS version, defer to the base
+    // implementation to correctly invalidate the arguments.
+    return Process::GetHostOSVersion(major, minor, update);
+}
+
 namespace {
 
 typedef std::vector<std::string> stringVec;
@@ -4135,15 +4409,15 @@ struct GdbServerTargetInfo
 };
     
 bool
-ParseRegisters (XMLNode feature_node, GdbServerTargetInfo &target_info, GDBRemoteDynamicRegisterInfo &dyn_reg_info)
+ParseRegisters (XMLNode feature_node, GdbServerTargetInfo &target_info, GDBRemoteDynamicRegisterInfo &dyn_reg_info, ABISP abi_sp)
 {
     if (!feature_node)
         return false;
     
-    uint32_t prev_reg_num = 0;
+    uint32_t cur_reg_num = 0;
     uint32_t reg_offset = 0;
 
-    feature_node.ForEachChildElementWithName("reg", [&target_info, &dyn_reg_info, &prev_reg_num, &reg_offset](const XMLNode &reg_node) -> bool {
+    feature_node.ForEachChildElementWithName("reg", [&target_info, &dyn_reg_info, &cur_reg_num, &reg_offset, &abi_sp](const XMLNode &reg_node) -> bool {
         std::string gdb_group;
         std::string gdb_type;
         ConstString reg_name;
@@ -4158,19 +4432,19 @@ ParseRegisters (XMLNode feature_node, GdbServerTargetInfo &target_info, GDBRemot
             0,                    // byte size
             reg_offset,           // offset
             eEncodingUint,        // encoding
-            eFormatHex,           // formate
+            eFormatHex,           // format
             {
-                LLDB_INVALID_REGNUM, // GCC reg num
+                LLDB_INVALID_REGNUM, // eh_frame reg num
                 LLDB_INVALID_REGNUM, // DWARF reg num
                 LLDB_INVALID_REGNUM, // generic reg num
-                prev_reg_num,        // GDB reg num
-                prev_reg_num         // native register number
+                cur_reg_num,        // process plugin reg num
+                cur_reg_num         // native register number
             },
             NULL,
             NULL
         };
         
-        reg_node.ForEachAttribute([&target_info, &gdb_group, &gdb_type, &reg_name, &alt_name, &set_name, &value_regs, &invalidate_regs, &encoding_set, &format_set, &reg_info, &prev_reg_num, &reg_offset](const llvm::StringRef &name, const llvm::StringRef &value) -> bool {
+        reg_node.ForEachAttribute([&target_info, &gdb_group, &gdb_type, &reg_name, &alt_name, &set_name, &value_regs, &invalidate_regs, &encoding_set, &format_set, &reg_info, &cur_reg_num, &reg_offset](const llvm::StringRef &name, const llvm::StringRef &value) -> bool {
             if (name == "name")
             {
                 reg_name.SetString(value);
@@ -4192,9 +4466,7 @@ ParseRegisters (XMLNode feature_node, GdbServerTargetInfo &target_info, GDBRemot
                 const uint32_t regnum = StringConvert::ToUInt32(value.data(), LLDB_INVALID_REGNUM, 0);
                 if (regnum != LLDB_INVALID_REGNUM)
                 {
-                    reg_info.kinds[eRegisterKindGDB] = regnum;
-                    reg_info.kinds[eRegisterKindLLDB] = regnum;
-                    prev_reg_num = regnum;
+                    reg_info.kinds[eRegisterKindProcessPlugin] = regnum;
                 }
             }
             else if (name == "offset")
@@ -4240,9 +4512,9 @@ ParseRegisters (XMLNode feature_node, GdbServerTargetInfo &target_info, GDBRemot
                 if (pos != target_info.reg_set_map.end())
                     set_name = pos->second.name;
             }
-            else if (name == "gcc_regnum")
+            else if (name == "gcc_regnum" || name == "ehframe_regnum")
             {
-                reg_info.kinds[eRegisterKindGCC] = StringConvert::ToUInt32(value.data(), LLDB_INVALID_REGNUM, 0);
+                reg_info.kinds[eRegisterKindEHFrame] = StringConvert::ToUInt32(value.data(), LLDB_INVALID_REGNUM, 0);
             }
             else if (name == "dwarf_regnum")
             {
@@ -4305,7 +4577,8 @@ ParseRegisters (XMLNode feature_node, GdbServerTargetInfo &target_info, GDBRemot
             reg_info.invalidate_regs = invalidate_regs.data();
         }
         
-        ++prev_reg_num;
+        ++cur_reg_num;
+        AugmentRegisterInfoViaABI (reg_info, reg_name, abi_sp);
         dyn_reg_info.AddRegister(reg_info, reg_name, alt_name, set_name);
         
         return true; // Keep iterating through all "reg" elements
@@ -4401,7 +4674,7 @@ ProcessGDBRemote::GetGDBServerRegisterInfo ()
             
             if (feature_node)
             {
-                ParseRegisters(feature_node, target_info, this->m_register_info);
+                ParseRegisters(feature_node, target_info, this->m_register_info, GetABI());
             }
             
             for (const auto &include : target_info.includes)
@@ -4419,7 +4692,7 @@ ProcessGDBRemote::GetGDBServerRegisterInfo ()
                 XMLNode include_feature_node = include_xml_document.GetRootElement("feature");
                 if (include_feature_node)
                 {
-                    ParseRegisters(include_feature_node, target_info, this->m_register_info);
+                    ParseRegisters(include_feature_node, target_info, this->m_register_info, GetABI());
                 }
             }
             this->m_register_info.Finalize(GetTarget().GetArchitecture());
@@ -4489,7 +4762,8 @@ ProcessGDBRemote::GetLoadedModuleList (GDBLoadedModuleInfoList & list)
                 {
                     // the displacement as read from the field 'l_addr' of the link_map struct.
                     module.set_base(StringConvert::ToUInt64(value.data(), LLDB_INVALID_ADDRESS, 0));
-                    
+                    // base address is always a displacement, not an absolute value.
+                    module.set_base_is_offset(true);
                 }
                 else if (name == "l_ld")
                 {
@@ -4504,13 +4778,15 @@ ProcessGDBRemote::GetLoadedModuleList (GDBLoadedModuleInfoList & list)
             {
                 std::string name;
                 lldb::addr_t lm=0, base=0, ld=0;
+                bool base_is_offset;
 
                 module.get_name (name);
                 module.get_link_map (lm);
                 module.get_base (base);
+                module.get_base_is_offset (base_is_offset);
                 module.get_dynamic (ld);
 
-                log->Printf ("found (link_map:0x08%" PRIx64 ", base:0x08%" PRIx64 ", ld:0x08%" PRIx64 ", name:'%s')", lm, base, ld, name.c_str());
+                log->Printf ("found (link_map:0x%08" PRIx64 ", base:0x%08" PRIx64 "[%s], ld:0x%08" PRIx64 ", name:'%s')", lm, base, (base_is_offset ? "offset" : "absolute"), ld, name.c_str());
             }
 
             list.add (module);
@@ -4552,15 +4828,19 @@ ProcessGDBRemote::GetLoadedModuleList (GDBLoadedModuleInfoList & list)
             const XMLNode &section = library.FindFirstChildElementWithName("section");
             llvm::StringRef address = section.GetAttributeValue("address");
             module.set_base(StringConvert::ToUInt64(address.data(), LLDB_INVALID_ADDRESS, 0));
+            // These addresses are absolute values.
+            module.set_base_is_offset(false);
 
             if (log)
             {
                 std::string name;
                 lldb::addr_t base = 0;
+                bool base_is_offset;
                 module.get_name (name);
                 module.get_base (base);
+                module.get_base_is_offset (base_is_offset);
 
-                log->Printf ("found (base:0x%" PRIx64 ", name:'%s')", base, name.c_str());
+                log->Printf ("found (base:0x%08" PRIx64 "[%s], name:'%s')", base, (base_is_offset ? "offset" : "absolute"), name.c_str());
             }
 
             list.add (module);
@@ -4577,7 +4857,7 @@ ProcessGDBRemote::GetLoadedModuleList (GDBLoadedModuleInfoList & list)
 }
 
 lldb::ModuleSP
-ProcessGDBRemote::LoadModuleAtAddress (const FileSpec &file, lldb::addr_t base_addr)
+ProcessGDBRemote::LoadModuleAtAddress (const FileSpec &file, lldb::addr_t base_addr, bool value_is_offset)
 {
     Target &target = m_process->GetTarget();
     ModuleList &modules = target.GetImages();
@@ -4588,11 +4868,11 @@ ProcessGDBRemote::LoadModuleAtAddress (const FileSpec &file, lldb::addr_t base_a
     ModuleSpec module_spec (file, target.GetArchitecture());
     if ((module_sp = modules.FindFirstModule (module_spec)))
     {
-        module_sp->SetLoadAddress (target, base_addr, true, changed);
+        module_sp->SetLoadAddress (target, base_addr, value_is_offset, changed);
     }
     else if ((module_sp = target.GetSharedModule (module_spec)))
     {
-        module_sp->SetLoadAddress (target, base_addr, true, changed);
+        module_sp->SetLoadAddress (target, base_addr, value_is_offset, changed);
     }
 
     return module_sp;
@@ -4615,10 +4895,12 @@ ProcessGDBRemote::LoadModules ()
     {
         std::string  mod_name;
         lldb::addr_t mod_base;
+        bool         mod_base_is_offset;
 
         bool valid = true;
         valid &= modInfo.get_name (mod_name);
         valid &= modInfo.get_base (mod_base);
+        valid &= modInfo.get_base_is_offset (mod_base_is_offset);
         if (!valid)
             continue;
 
@@ -4630,7 +4912,7 @@ ProcessGDBRemote::LoadModules ()
             marker += 1;
 
         FileSpec file (mod_name.c_str()+marker, true);
-        lldb::ModuleSP module_sp = LoadModuleAtAddress (file, mod_base);
+        lldb::ModuleSP module_sp = LoadModuleAtAddress (file, mod_base, mod_base_is_offset);
 
         if (module_sp.get())
             new_modules.Append (module_sp);
@@ -4638,7 +4920,7 @@ ProcessGDBRemote::LoadModules ()
 
     if (new_modules.GetSize() > 0)
     {
-        Target & target = m_target;
+        Target &target = GetTarget();
 
         new_modules.ForEach ([&target](const lldb::ModuleSP module_sp) -> bool
         {
diff --git a/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h b/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h
index 45c74ea64ee50..54749827d6ac6 100644
--- a/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h
+++ b/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h
@@ -11,12 +11,14 @@
 #define liblldb_ProcessGDBRemote_h_
 
 // C Includes
-
 // C++ Includes
-#include <list>
+#include <atomic>
+#include <map>
+#include <string>
 #include <vector>
 
 // Other libraries and framework includes
+// Project includes
 #include "lldb/Core/ArchSpec.h"
 #include "lldb/Core/Broadcaster.h"
 #include "lldb/Core/ConstString.h"
@@ -42,11 +44,12 @@ class ThreadGDBRemote;
 class ProcessGDBRemote : public Process
 {
 public:
-    //------------------------------------------------------------------
-    // Constructors and Destructors
-    //------------------------------------------------------------------
+    ProcessGDBRemote(lldb::TargetSP target_sp, Listener &listener);
+
+    ~ProcessGDBRemote() override;
+
     static lldb::ProcessSP
-    CreateInstance (Target& target, 
+    CreateInstance (lldb::TargetSP target_sp,
                     Listener &listener,
                     const FileSpec *crash_file_path);
 
@@ -66,18 +69,10 @@ public:
     GetPluginDescriptionStatic();
 
     //------------------------------------------------------------------
-    // Constructors and Destructors
-    //------------------------------------------------------------------
-    ProcessGDBRemote(Target& target, Listener &listener);
-
-    virtual
-    ~ProcessGDBRemote();
-
-    //------------------------------------------------------------------
     // Check if a given Process
     //------------------------------------------------------------------
     bool
-    CanDebug (Target &target, bool plugin_specified_by_name) override;
+    CanDebug (lldb::TargetSP target_sp, bool plugin_specified_by_name) override;
 
     CommandObject *
     GetPluginCommandObject() override;
@@ -152,6 +147,9 @@ public:
     void
     RefreshStateAfterStop() override;
 
+    void
+    SetUnixSignals(const lldb::UnixSignalsSP &signals_sp);
+
     //------------------------------------------------------------------
     // Process Queries
     //------------------------------------------------------------------
@@ -161,6 +159,9 @@ public:
     lldb::addr_t
     GetImageInfoAddress() override;
 
+    void
+    WillPublicStop () override;
+
     //------------------------------------------------------------------
     // Process Memory
     //------------------------------------------------------------------
@@ -238,6 +239,11 @@ public:
                   const ArchSpec& arch,
                   ModuleSpec &module_spec) override;
 
+    bool
+    GetHostOSVersion(uint32_t &major,
+                     uint32_t &minor,
+                     uint32_t &update) override;
+
     size_t
     LoadModules() override;
 
@@ -257,20 +263,63 @@ protected:
 
     class GDBLoadedModuleInfoList;
 
+    //------------------------------------------------------------------
+    /// Broadcaster event bits definitions.
+    //------------------------------------------------------------------
+    enum
+    {
+        eBroadcastBitAsyncContinue                  = (1 << 0),
+        eBroadcastBitAsyncThreadShouldExit          = (1 << 1),
+        eBroadcastBitAsyncThreadDidExit             = (1 << 2)
+    };
+    
+    Flags m_flags;            // Process specific flags (see eFlags enums)
+    GDBRemoteCommunicationClient m_gdb_comm;
+    std::atomic<lldb::pid_t> m_debugserver_pid;
+    std::vector<StringExtractorGDBRemote> m_stop_packet_stack;  // The stop packet stack replaces the last stop packet variable
+    Mutex m_last_stop_packet_mutex;
+    GDBRemoteDynamicRegisterInfo m_register_info;
+    Broadcaster m_async_broadcaster;
+    Listener m_async_listener;
+    HostThread m_async_thread;
+    Mutex m_async_thread_state_mutex;
+    typedef std::vector<lldb::tid_t> tid_collection;
+    typedef std::vector< std::pair<lldb::tid_t,int> > tid_sig_collection;
+    typedef std::map<lldb::addr_t, lldb::addr_t> MMapMap;
+    typedef std::map<uint32_t, std::string> ExpeditedRegisterMap;
+    tid_collection m_thread_ids; // Thread IDs for all threads. This list gets updated after stopping
+    std::vector<lldb::addr_t> m_thread_pcs; // PC values for all the threads.
+    StructuredData::ObjectSP m_jstopinfo_sp; // Stop info only for any threads that have valid stop infos
+    StructuredData::ObjectSP m_jthreadsinfo_sp; // Full stop info, expedited registers and memory for all threads if "jThreadsInfo" packet is supported
+    tid_collection m_continue_c_tids;                  // 'c' for continue
+    tid_sig_collection m_continue_C_tids; // 'C' for continue with signal
+    tid_collection m_continue_s_tids;                  // 's' for step
+    tid_sig_collection m_continue_S_tids; // 'S' for step with signal
+    uint64_t m_max_memory_size;       // The maximum number of bytes to read/write when reading and writing memory
+    uint64_t m_remote_stub_max_memory_size;    // The maximum memory size the remote gdb stub can handle
+    MMapMap m_addr_to_mmap_size;
+    lldb::BreakpointSP m_thread_create_bp_sp;
+    bool m_waiting_for_attach;
+    bool m_destroy_tried_resuming;
+    lldb::CommandObjectSP m_command_sp;
+    int64_t m_breakpoint_pc_offset;
+    lldb::tid_t m_initial_tid; // The initial thread ID, given by stub on attach
+
     //----------------------------------------------------------------------
     // Accessors
     //----------------------------------------------------------------------
     bool
     IsRunning ( lldb::StateType state )
     {
-        return    state == lldb::eStateRunning || IsStepping(state);
+        return state == lldb::eStateRunning || IsStepping(state);
     }
 
     bool
     IsStepping ( lldb::StateType state)
     {
-        return    state == lldb::eStateStepping;
+        return state == lldb::eStateStepping;
     }
+
     bool
     CanResume ( lldb::StateType state)
     {
@@ -306,6 +355,9 @@ protected:
                       ThreadList &new_thread_list) override;
 
     Error
+    EstablishConnectionIfNeeded (const ProcessInfo &process_info);
+
+    Error
     LaunchAndConnectToDebugserver (const ProcessInfo &process_info);
 
     void
@@ -333,46 +385,10 @@ protected:
     CalculateThreadStopInfo (ThreadGDBRemote *thread);
 
     size_t
-    UpdateThreadIDsFromStopReplyThreadsValue (std::string &value);
+    UpdateThreadPCsFromStopReplyThreadsValue (std::string &value);
 
-    //------------------------------------------------------------------
-    /// Broadcaster event bits definitions.
-    //------------------------------------------------------------------
-    enum
-    {
-        eBroadcastBitAsyncContinue                  = (1 << 0),
-        eBroadcastBitAsyncThreadShouldExit          = (1 << 1),
-        eBroadcastBitAsyncThreadDidExit             = (1 << 2)
-    };
-    
-    Flags m_flags;            // Process specific flags (see eFlags enums)
-    GDBRemoteCommunicationClient m_gdb_comm;
-    std::atomic<lldb::pid_t> m_debugserver_pid;
-    std::vector<StringExtractorGDBRemote> m_stop_packet_stack;  // The stop packet stack replaces the last stop packet variable
-    Mutex m_last_stop_packet_mutex;
-    GDBRemoteDynamicRegisterInfo m_register_info;
-    Broadcaster m_async_broadcaster;
-    HostThread m_async_thread;
-    Mutex m_async_thread_state_mutex;
-    typedef std::vector<lldb::tid_t> tid_collection;
-    typedef std::vector< std::pair<lldb::tid_t,int> > tid_sig_collection;
-    typedef std::map<lldb::addr_t, lldb::addr_t> MMapMap;
-    typedef std::map<uint32_t, std::string> ExpeditedRegisterMap;
-    tid_collection m_thread_ids; // Thread IDs for all threads. This list gets updated after stopping
-    StructuredData::ObjectSP m_threads_info_sp; // Stop info for all threads if "jThreadsInfo" packet is supported
-    tid_collection m_continue_c_tids;                  // 'c' for continue
-    tid_sig_collection m_continue_C_tids; // 'C' for continue with signal
-    tid_collection m_continue_s_tids;                  // 's' for step
-    tid_sig_collection m_continue_S_tids; // 'S' for step with signal
-    uint64_t m_max_memory_size;       // The maximum number of bytes to read/write when reading and writing memory
-    uint64_t m_remote_stub_max_memory_size;    // The maximum memory size the remote gdb stub can handle
-    MMapMap m_addr_to_mmap_size;
-    lldb::BreakpointSP m_thread_create_bp_sp;
-    bool m_waiting_for_attach;
-    bool m_destroy_tried_resuming;
-    lldb::CommandObjectSP m_command_sp;
-    int64_t m_breakpoint_pc_offset;
-    lldb::tid_t m_initial_tid; // The inital thread ID, given by stub on attach
+    size_t
+    UpdateThreadIDsFromStopReplyThreadsValue (std::string &value);
 
     bool
     HandleNotifyPacket(StringExtractorGDBRemote &packet);
@@ -396,7 +412,10 @@ protected:
     lldb::StateType
     SetThreadStopInfo (StringExtractor& stop_packet);
 
-    lldb::StateType
+    bool
+    GetThreadStopInfoFromJSON (ThreadGDBRemote *thread, const StructuredData::ObjectSP &thread_infos_sp);
+
+    lldb::ThreadSP
     SetThreadStopInfo (StructuredData::Dictionary *thread_dict);
 
     lldb::ThreadSP
@@ -445,7 +464,7 @@ protected:
     GetLoadedModuleList (GDBLoadedModuleInfoList &);
 
     lldb::ModuleSP
-    LoadModuleAtAddress (const FileSpec &file, lldb::addr_t base_addr);
+    LoadModuleAtAddress (const FileSpec &file, lldb::addr_t base_addr, bool value_is_offset);
 
 private:
     //------------------------------------------------------------------
@@ -458,10 +477,9 @@ private:
                          lldb::user_id_t break_loc_id);
 
     DISALLOW_COPY_AND_ASSIGN (ProcessGDBRemote);
-
 };
 
 } // namespace process_gdb_remote
 } // namespace lldb_private
 
-#endif  // liblldb_ProcessGDBRemote_h_
+#endif // liblldb_ProcessGDBRemote_h_
diff --git a/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp b/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp
index d2a6503caf8e0..9b410d8b5b8c2 100644
--- a/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp
+++ b/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp
@@ -313,6 +313,14 @@ ThreadGDBRemote::PrivateSetRegisterValue (uint32_t reg, StringExtractor &respons
 }
 
 bool
+ThreadGDBRemote::PrivateSetRegisterValue (uint32_t reg, uint64_t regval)
+{
+    GDBRemoteRegisterContext *gdb_reg_ctx = static_cast<GDBRemoteRegisterContext *>(GetRegisterContext ().get());
+    assert (gdb_reg_ctx);
+    return gdb_reg_ctx->PrivateSetRegisterValue (reg, regval);
+}
+
+bool
 ThreadGDBRemote::CalculateStopInfo ()
 {
     ProcessSP process_sp (GetProcess());
diff --git a/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h b/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
index 175433a3e20c1..24693ba891ccb 100644
--- a/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
+++ b/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
@@ -10,8 +10,12 @@
 #ifndef liblldb_ThreadGDBRemote_h_
 #define liblldb_ThreadGDBRemote_h_
 
+// C Includes
+// C++ Includes
 #include <string>
 
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Core/StructuredData.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/Thread.h"
@@ -28,8 +32,7 @@ class ThreadGDBRemote : public Thread
 public:
     ThreadGDBRemote (Process &process, lldb::tid_t tid);
 
-    virtual
-    ~ThreadGDBRemote ();
+    ~ThreadGDBRemote() override;
 
     void
     WillResume (lldb::StateType resume_state) override;
@@ -101,30 +104,27 @@ public:
     FetchThreadExtendedInfo () override;
 
 protected:
-    
     friend class ProcessGDBRemote;
 
+    std::string m_thread_name;
+    std::string m_dispatch_queue_name;
+    lldb::addr_t m_thread_dispatch_qaddr;
+    lldb::QueueKind m_queue_kind;     // Queue info from stop reply/stop info for thread
+    uint64_t m_queue_serial;    // Queue info from stop reply/stop info for thread
+
     bool
     PrivateSetRegisterValue (uint32_t reg, 
                              StringExtractor &response);
 
     bool
+    PrivateSetRegisterValue (uint32_t reg, 
+                             uint64_t regval);
+
+    bool
     CachedQueueInfoIsValid() const
     {
         return m_queue_kind != lldb::eQueueKindUnknown;
     }
-    //------------------------------------------------------------------
-    // Member variables.
-    //------------------------------------------------------------------
-    std::string m_thread_name;
-    std::string m_dispatch_queue_name;
-    lldb::addr_t m_thread_dispatch_qaddr;
-    lldb::QueueKind m_queue_kind;     // Queue info from stop reply/stop info for thread
-    uint64_t m_queue_serial;    // Queue info from stop reply/stop info for thread
-    //------------------------------------------------------------------
-    // Member variables.
-    //------------------------------------------------------------------
-
     void
     SetStopInfoFromPacket (StringExtractor &stop_packet, uint32_t stop_id);
 
@@ -135,4 +135,4 @@ protected:
 } // namespace process_gdb_remote
 } // namespace lldb_private
 
-#endif  // liblldb_ThreadGDBRemote_h_
+#endif // liblldb_ThreadGDBRemote_h_
diff --git a/source/Plugins/ScriptInterpreter/None/ScriptInterpreterNone.cpp b/source/Plugins/ScriptInterpreter/None/ScriptInterpreterNone.cpp
new file mode 100644
index 0000000000000..1a352fa1987fd
--- /dev/null
+++ b/source/Plugins/ScriptInterpreter/None/ScriptInterpreterNone.cpp
@@ -0,0 +1,93 @@
+//===-- ScriptInterpreterNone.cpp -------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ScriptInterpreterNone.h"
+#include "lldb/Core/Debugger.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/StreamFile.h"
+#include "lldb/Core/StringList.h"
+#include "lldb/Interpreter/CommandInterpreter.h"
+
+#include <mutex>
+
+using namespace lldb;
+using namespace lldb_private;
+
+ScriptInterpreterNone::ScriptInterpreterNone(CommandInterpreter &interpreter)
+    : ScriptInterpreter(interpreter, eScriptLanguageNone)
+{
+}
+
+ScriptInterpreterNone::~ScriptInterpreterNone()
+{
+}
+
+bool
+ScriptInterpreterNone::ExecuteOneLine(const char *command, CommandReturnObject *, const ExecuteScriptOptions &)
+{
+    m_interpreter.GetDebugger().GetErrorFile()->PutCString(
+        "error: there is no embedded script interpreter in this mode.\n");
+    return false;
+}
+
+void
+ScriptInterpreterNone::ExecuteInterpreterLoop()
+{
+    m_interpreter.GetDebugger().GetErrorFile()->PutCString(
+        "error: there is no embedded script interpreter in this mode.\n");
+}
+
+void
+ScriptInterpreterNone::Initialize()
+{
+    static std::once_flag g_once_flag;
+
+    std::call_once(g_once_flag, []()
+                   {
+                       PluginManager::RegisterPlugin(GetPluginNameStatic(), GetPluginDescriptionStatic(),
+                                                     lldb::eScriptLanguageNone, CreateInstance);
+                   });
+}
+
+void
+ScriptInterpreterNone::Terminate()
+{
+}
+
+lldb::ScriptInterpreterSP
+ScriptInterpreterNone::CreateInstance(CommandInterpreter &interpreter)
+{
+    return std::make_shared<ScriptInterpreterNone>(interpreter);
+}
+
+lldb_private::ConstString
+ScriptInterpreterNone::GetPluginNameStatic()
+{
+    static ConstString g_name("script-none");
+    return g_name;
+}
+
+const char *
+ScriptInterpreterNone::GetPluginDescriptionStatic()
+{
+    return "Null script interpreter";
+}
+
+lldb_private::ConstString
+ScriptInterpreterNone::GetPluginName()
+{
+    return GetPluginNameStatic();
+}
+
+uint32_t
+ScriptInterpreterNone::GetPluginVersion()
+{
+    return 1;
+}
diff --git a/source/Plugins/ScriptInterpreter/None/ScriptInterpreterNone.h b/source/Plugins/ScriptInterpreter/None/ScriptInterpreterNone.h
new file mode 100644
index 0000000000000..49fd4fabfbc5d
--- /dev/null
+++ b/source/Plugins/ScriptInterpreter/None/ScriptInterpreterNone.h
@@ -0,0 +1,66 @@
+//===-- ScriptInterpreterNone.h ---------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ScriptInterpreterNone_h_
+#define liblldb_ScriptInterpreterNone_h_
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/Interpreter/ScriptInterpreter.h"
+
+namespace lldb_private
+{
+
+class ScriptInterpreterNone : public ScriptInterpreter
+{
+  public:
+    ScriptInterpreterNone(CommandInterpreter &interpreter);
+
+    ~ScriptInterpreterNone() override;
+
+    bool
+    ExecuteOneLine(const char *command, CommandReturnObject *result,
+                   const ExecuteScriptOptions &options = ExecuteScriptOptions()) override;
+
+    void
+    ExecuteInterpreterLoop() override;
+
+    //------------------------------------------------------------------
+    // Static Functions
+    //------------------------------------------------------------------
+    static void
+    Initialize();
+
+    static void
+    Terminate();
+
+    static lldb::ScriptInterpreterSP
+    CreateInstance(CommandInterpreter &interpreter);
+
+    static lldb_private::ConstString
+    GetPluginNameStatic();
+
+    static const char *
+    GetPluginDescriptionStatic();
+
+    //------------------------------------------------------------------
+    // PluginInterface protocol
+    //------------------------------------------------------------------
+    lldb_private::ConstString
+    GetPluginName() override;
+
+    uint32_t
+    GetPluginVersion() override;
+};
+
+} // namespace lldb_private
+
+#endif // liblldb_ScriptInterpreterNone_h_
diff --git a/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.cpp b/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.cpp
new file mode 100644
index 0000000000000..3107677ee9480
--- /dev/null
+++ b/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.cpp
@@ -0,0 +1,1069 @@
+//===-- PythonDataObjects.cpp ------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifdef LLDB_DISABLE_PYTHON
+
+// Python is disabled in this build
+
+#else
+
+#include "lldb-python.h"
+#include "PythonDataObjects.h"
+#include "ScriptInterpreterPython.h"
+
+#include "lldb/Core/Stream.h"
+#include "lldb/Host/File.h"
+#include "lldb/Interpreter/ScriptInterpreter.h"
+
+#include <stdio.h>
+
+using namespace lldb_private;
+using namespace lldb;
+
+void
+StructuredPythonObject::Dump(Stream &s) const
+{
+    s << "Python Obj: 0x" << GetValue();
+}
+
+//----------------------------------------------------------------------
+// PythonObject
+//----------------------------------------------------------------------
+
+void
+PythonObject::Dump(Stream &strm) const
+{
+    if (m_py_obj)
+    {
+        FILE *file = ::tmpfile();
+        if (file)
+        {
+            ::PyObject_Print (m_py_obj, file, 0);
+            const long length = ftell (file);
+            if (length)
+            {
+                ::rewind(file);
+                std::vector<char> file_contents (length,'\0');
+                const size_t length_read = ::fread (file_contents.data(), 1, file_contents.size(), file);
+                if (length_read > 0)
+                    strm.Write (file_contents.data(), length_read);
+            }
+            ::fclose (file);
+        }
+    }
+    else
+        strm.PutCString ("NULL");
+}
+
+PyObjectType
+PythonObject::GetObjectType() const
+{
+    if (!IsAllocated())
+        return PyObjectType::None;
+
+    if (PythonModule::Check(m_py_obj))
+        return PyObjectType::Module;
+    if (PythonList::Check(m_py_obj))
+        return PyObjectType::List;
+    if (PythonTuple::Check(m_py_obj))
+        return PyObjectType::Tuple;
+    if (PythonDictionary::Check(m_py_obj))
+        return PyObjectType::Dictionary;
+    if (PythonString::Check(m_py_obj))
+        return PyObjectType::String;
+    if (PythonInteger::Check(m_py_obj))
+        return PyObjectType::Integer;
+    if (PythonFile::Check(m_py_obj))
+        return PyObjectType::File;
+    if (PythonCallable::Check(m_py_obj))
+        return PyObjectType::Callable;
+    return PyObjectType::Unknown;
+}
+
+PythonString
+PythonObject::Repr() const
+{
+    if (!m_py_obj)
+        return PythonString();
+    PyObject *repr = PyObject_Repr(m_py_obj);
+    if (!repr)
+        return PythonString();
+    return PythonString(PyRefType::Owned, repr);
+}
+
+PythonString
+PythonObject::Str() const
+{
+    if (!m_py_obj)
+        return PythonString();
+    PyObject *str = PyObject_Str(m_py_obj);
+    if (!str)
+        return PythonString();
+    return PythonString(PyRefType::Owned, str);
+}
+
+PythonObject
+PythonObject::ResolveNameWithDictionary(llvm::StringRef name, const PythonDictionary &dict)
+{
+    size_t dot_pos = name.find_first_of('.');
+    llvm::StringRef piece = name.substr(0, dot_pos);
+    PythonObject result = dict.GetItemForKey(PythonString(piece));
+    if (dot_pos == llvm::StringRef::npos)
+    {
+        // There was no dot, we're done.
+        return result;
+    }
+
+    // There was a dot.  The remaining portion of the name should be looked up in
+    // the context of the object that was found in the dictionary.
+    return result.ResolveName(name.substr(dot_pos + 1));
+}
+
+PythonObject
+PythonObject::ResolveName(llvm::StringRef name) const
+{
+    // Resolve the name in the context of the specified object.  If,
+    // for example, `this` refers to a PyModule, then this will look for
+    // `name` in this module.  If `this` refers to a PyType, then it will
+    // resolve `name` as an attribute of that type.  If `this` refers to
+    // an instance of an object, then it will resolve `name` as the value
+    // of the specified field.
+    //
+    // This function handles dotted names so that, for example, if `m_py_obj`
+    // refers to the `sys` module, and `name` == "path.append", then it
+    // will find the function `sys.path.append`.
+
+    size_t dot_pos = name.find_first_of('.');
+    if (dot_pos == llvm::StringRef::npos)
+    {
+        // No dots in the name, we should be able to find the value immediately
+        // as an attribute of `m_py_obj`.
+        return GetAttributeValue(name);
+    }
+
+    // Look up the first piece of the name, and resolve the rest as a child of that.
+    PythonObject parent = ResolveName(name.substr(0, dot_pos));
+    if (!parent.IsAllocated())
+        return PythonObject();
+
+    // Tail recursion.. should be optimized by the compiler
+    return parent.ResolveName(name.substr(dot_pos + 1));
+}
+
+bool
+PythonObject::HasAttribute(llvm::StringRef attr) const
+{
+    if (!IsValid())
+        return false;
+    PythonString py_attr(attr);
+    return !!PyObject_HasAttr(m_py_obj, py_attr.get());
+}
+
+PythonObject
+PythonObject::GetAttributeValue(llvm::StringRef attr) const
+{
+    if (!IsValid())
+        return PythonObject();
+
+    PythonString py_attr(attr);
+    if (!PyObject_HasAttr(m_py_obj, py_attr.get()))
+        return PythonObject();
+
+    return PythonObject(PyRefType::Owned,
+        PyObject_GetAttr(m_py_obj, py_attr.get()));
+}
+
+bool
+PythonObject::IsNone() const
+{
+    return m_py_obj == Py_None;
+}
+
+bool
+PythonObject::IsValid() const
+{
+    return m_py_obj != nullptr;
+}
+
+bool
+PythonObject::IsAllocated() const
+{
+    return IsValid() && !IsNone();
+}
+
+StructuredData::ObjectSP
+PythonObject::CreateStructuredObject() const
+{
+    switch (GetObjectType())
+    {
+        case PyObjectType::Dictionary:
+            return PythonDictionary(PyRefType::Borrowed, m_py_obj).CreateStructuredDictionary();
+        case PyObjectType::Integer:
+            return PythonInteger(PyRefType::Borrowed, m_py_obj).CreateStructuredInteger();
+        case PyObjectType::List:
+            return PythonList(PyRefType::Borrowed, m_py_obj).CreateStructuredArray();
+        case PyObjectType::String:
+            return PythonString(PyRefType::Borrowed, m_py_obj).CreateStructuredString();
+        case PyObjectType::None:
+            return StructuredData::ObjectSP();
+        default:
+            return StructuredData::ObjectSP(new StructuredPythonObject(m_py_obj));
+    }
+}
+
+//----------------------------------------------------------------------
+// PythonString
+//----------------------------------------------------------------------
+
+PythonString::PythonString(PyRefType type, PyObject *py_obj)
+    : PythonObject()
+{
+    Reset(type, py_obj); // Use "Reset()" to ensure that py_obj is a string
+}
+
+PythonString::PythonString(const PythonString &object)
+    : PythonObject(object)
+{
+}
+
+PythonString::PythonString(llvm::StringRef string)
+    : PythonObject()
+{
+    SetString(string);
+}
+
+PythonString::PythonString(const char *string)
+    : PythonObject()
+{
+    SetString(llvm::StringRef(string));
+}
+
+PythonString::PythonString()
+    : PythonObject()
+{
+}
+
+PythonString::~PythonString ()
+{
+}
+
+bool
+PythonString::Check(PyObject *py_obj)
+{
+    if (!py_obj)
+        return false;
+
+    if (PyUnicode_Check(py_obj))
+        return true;
+#if PY_MAJOR_VERSION < 3
+    if (PyString_Check(py_obj))
+        return true;
+#endif
+    return false;
+}
+
+void
+PythonString::Reset(PyRefType type, PyObject *py_obj)
+{
+    // Grab the desired reference type so that if we end up rejecting
+    // `py_obj` it still gets decremented if necessary.
+    PythonObject result(type, py_obj);
+
+    if (!PythonString::Check(py_obj))
+    {
+        PythonObject::Reset();
+        return;
+    }
+#if PY_MAJOR_VERSION < 3
+    // In Python 2, Don't store PyUnicode objects directly, because we need
+    // access to their underlying character buffers which Python 2 doesn't
+    // provide.
+    if (PyUnicode_Check(py_obj))
+        result.Reset(PyRefType::Owned, PyUnicode_AsUTF8String(result.get()));
+#endif
+    // Calling PythonObject::Reset(const PythonObject&) will lead to stack overflow since it calls
+    // back into the virtual implementation.
+    PythonObject::Reset(PyRefType::Borrowed, result.get());
+}
+
+llvm::StringRef
+PythonString::GetString() const
+{
+    if (!IsValid())
+        return llvm::StringRef();
+
+    Py_ssize_t size;
+    char *c;
+
+#if PY_MAJOR_VERSION >= 3
+    c = PyUnicode_AsUTF8AndSize(m_py_obj, &size);
+#else
+    PyString_AsStringAndSize(m_py_obj, &c, &size);
+#endif
+    return llvm::StringRef(c, size);
+}
+
+size_t
+PythonString::GetSize() const
+{
+    if (IsValid())
+    {
+#if PY_MAJOR_VERSION >= 3
+        return PyUnicode_GetSize(m_py_obj);
+#else
+        return PyString_Size(m_py_obj);
+#endif
+    }
+    return 0;
+}
+
+void
+PythonString::SetString (llvm::StringRef string)
+{
+#if PY_MAJOR_VERSION >= 3
+    PyObject *unicode = PyUnicode_FromStringAndSize(string.data(), string.size());
+    PythonObject::Reset(PyRefType::Owned, unicode);
+#else
+    PyObject *str = PyString_FromStringAndSize(string.data(), string.size());
+    PythonObject::Reset(PyRefType::Owned, str);
+#endif
+}
+
+StructuredData::StringSP
+PythonString::CreateStructuredString() const
+{
+    StructuredData::StringSP result(new StructuredData::String);
+    result->SetValue(GetString());
+    return result;
+}
+
+//----------------------------------------------------------------------
+// PythonInteger
+//----------------------------------------------------------------------
+
+PythonInteger::PythonInteger()
+    : PythonObject()
+{
+
+}
+
+PythonInteger::PythonInteger(PyRefType type, PyObject *py_obj)
+    : PythonObject()
+{
+    Reset(type, py_obj); // Use "Reset()" to ensure that py_obj is a integer type
+}
+
+PythonInteger::PythonInteger(const PythonInteger &object)
+    : PythonObject(object)
+{
+}
+
+PythonInteger::PythonInteger(int64_t value)
+    : PythonObject()
+{
+    SetInteger(value);
+}
+
+
+PythonInteger::~PythonInteger ()
+{
+}
+
+bool
+PythonInteger::Check(PyObject *py_obj)
+{
+    if (!py_obj)
+        return false;
+
+#if PY_MAJOR_VERSION >= 3
+    // Python 3 does not have PyInt_Check.  There is only one type of
+    // integral value, long.
+    return PyLong_Check(py_obj);
+#else
+    return PyLong_Check(py_obj) || PyInt_Check(py_obj);
+#endif
+}
+
+void
+PythonInteger::Reset(PyRefType type, PyObject *py_obj)
+{
+    // Grab the desired reference type so that if we end up rejecting
+    // `py_obj` it still gets decremented if necessary.
+    PythonObject result(type, py_obj);
+
+    if (!PythonInteger::Check(py_obj))
+    {
+        PythonObject::Reset();
+        return;
+    }
+
+#if PY_MAJOR_VERSION < 3
+    // Always store this as a PyLong, which makes interoperability between
+    // Python 2.x and Python 3.x easier.  This is only necessary in 2.x,
+    // since 3.x doesn't even have a PyInt.
+    if (PyInt_Check(py_obj))
+    {
+        // Since we converted the original object to a different type, the new
+        // object is an owned object regardless of the ownership semantics requested
+        // by the user.
+        result.Reset(PyRefType::Owned, PyLong_FromLongLong(PyInt_AsLong(py_obj)));
+    }
+#endif
+
+    assert(PyLong_Check(result.get()) && "Couldn't get a PyLong from this PyObject");
+
+    // Calling PythonObject::Reset(const PythonObject&) will lead to stack overflow since it calls
+    // back into the virtual implementation.
+    PythonObject::Reset(PyRefType::Borrowed, result.get());
+}
+
+int64_t
+PythonInteger::GetInteger() const
+{
+    if (m_py_obj)
+    {
+        assert(PyLong_Check(m_py_obj) && "PythonInteger::GetInteger has a PyObject that isn't a PyLong");
+
+        return PyLong_AsLongLong(m_py_obj);
+    }
+    return UINT64_MAX;
+}
+
+void
+PythonInteger::SetInteger(int64_t value)
+{
+    PythonObject::Reset(PyRefType::Owned, PyLong_FromLongLong(value));
+}
+
+StructuredData::IntegerSP
+PythonInteger::CreateStructuredInteger() const
+{
+    StructuredData::IntegerSP result(new StructuredData::Integer);
+    result->SetValue(GetInteger());
+    return result;
+}
+
+//----------------------------------------------------------------------
+// PythonList
+//----------------------------------------------------------------------
+
+PythonList::PythonList(PyInitialValue value)
+    : PythonObject()
+{
+    if (value == PyInitialValue::Empty)
+        Reset(PyRefType::Owned, PyList_New(0));
+}
+
+PythonList::PythonList(int list_size)
+    : PythonObject()
+{
+    Reset(PyRefType::Owned, PyList_New(list_size));
+}
+
+PythonList::PythonList(PyRefType type, PyObject *py_obj)
+    : PythonObject()
+{
+    Reset(type, py_obj); // Use "Reset()" to ensure that py_obj is a list
+}
+
+PythonList::PythonList(const PythonList &list)
+    : PythonObject(list)
+{
+}
+
+PythonList::~PythonList ()
+{
+}
+
+bool
+PythonList::Check(PyObject *py_obj)
+{
+    if (!py_obj)
+        return false;
+    return PyList_Check(py_obj);
+}
+
+void
+PythonList::Reset(PyRefType type, PyObject *py_obj)
+{
+    // Grab the desired reference type so that if we end up rejecting
+    // `py_obj` it still gets decremented if necessary.
+    PythonObject result(type, py_obj);
+
+    if (!PythonList::Check(py_obj))
+    {
+        PythonObject::Reset();
+        return;
+    }
+
+    // Calling PythonObject::Reset(const PythonObject&) will lead to stack overflow since it calls
+    // back into the virtual implementation.
+    PythonObject::Reset(PyRefType::Borrowed, result.get());
+}
+
+uint32_t
+PythonList::GetSize() const
+{
+    if (IsValid())
+        return PyList_GET_SIZE(m_py_obj);
+    return 0;
+}
+
+PythonObject
+PythonList::GetItemAtIndex(uint32_t index) const
+{
+    if (IsValid())
+        return PythonObject(PyRefType::Borrowed, PyList_GetItem(m_py_obj, index));
+    return PythonObject();
+}
+
+void
+PythonList::SetItemAtIndex(uint32_t index, const PythonObject &object)
+{
+    if (IsAllocated() && object.IsValid())
+    {
+        // PyList_SetItem is documented to "steal" a reference, so we need to
+        // convert it to an owned reference by incrementing it.
+        Py_INCREF(object.get());
+        PyList_SetItem(m_py_obj, index, object.get());
+    }
+}
+
+void
+PythonList::AppendItem(const PythonObject &object)
+{
+    if (IsAllocated() && object.IsValid())
+    {
+        // `PyList_Append` does *not* steal a reference, so do not call `Py_INCREF`
+        // here like we do with `PyList_SetItem`.
+        PyList_Append(m_py_obj, object.get());
+    }
+}
+
+StructuredData::ArraySP
+PythonList::CreateStructuredArray() const
+{
+    StructuredData::ArraySP result(new StructuredData::Array);
+    uint32_t count = GetSize();
+    for (uint32_t i = 0; i < count; ++i)
+    {
+        PythonObject obj = GetItemAtIndex(i);
+        result->AddItem(obj.CreateStructuredObject());
+    }
+    return result;
+}
+
+//----------------------------------------------------------------------
+// PythonTuple
+//----------------------------------------------------------------------
+
+PythonTuple::PythonTuple(PyInitialValue value)
+    : PythonObject()
+{
+    if (value == PyInitialValue::Empty)
+        Reset(PyRefType::Owned, PyTuple_New(0));
+}
+
+PythonTuple::PythonTuple(int tuple_size)
+    : PythonObject()
+{
+    Reset(PyRefType::Owned, PyTuple_New(tuple_size));
+}
+
+PythonTuple::PythonTuple(PyRefType type, PyObject *py_obj)
+    : PythonObject()
+{
+    Reset(type, py_obj); // Use "Reset()" to ensure that py_obj is a tuple
+}
+
+PythonTuple::PythonTuple(const PythonTuple &tuple)
+    : PythonObject(tuple)
+{
+}
+
+PythonTuple::PythonTuple(std::initializer_list<PythonObject> objects)
+{
+    m_py_obj = PyTuple_New(objects.size());
+
+    uint32_t idx = 0;
+    for (auto object : objects)
+    {
+        if (object.IsValid())
+            SetItemAtIndex(idx, object);
+        idx++;
+    }
+}
+
+PythonTuple::PythonTuple(std::initializer_list<PyObject*> objects)
+{
+    m_py_obj = PyTuple_New(objects.size());
+
+    uint32_t idx = 0;
+    for (auto py_object : objects)
+    {
+        PythonObject object(PyRefType::Borrowed, py_object);
+        if (object.IsValid())
+            SetItemAtIndex(idx, object);
+        idx++;
+    }
+}
+
+PythonTuple::~PythonTuple()
+{
+}
+
+bool
+PythonTuple::Check(PyObject *py_obj)
+{
+    if (!py_obj)
+        return false;
+    return PyTuple_Check(py_obj);
+}
+
+void
+PythonTuple::Reset(PyRefType type, PyObject *py_obj)
+{
+    // Grab the desired reference type so that if we end up rejecting
+    // `py_obj` it still gets decremented if necessary.
+    PythonObject result(type, py_obj);
+
+    if (!PythonTuple::Check(py_obj))
+    {
+        PythonObject::Reset();
+        return;
+    }
+
+    // Calling PythonObject::Reset(const PythonObject&) will lead to stack overflow since it calls
+    // back into the virtual implementation.
+    PythonObject::Reset(PyRefType::Borrowed, result.get());
+}
+
+uint32_t
+PythonTuple::GetSize() const
+{
+    if (IsValid())
+        return PyTuple_GET_SIZE(m_py_obj);
+    return 0;
+}
+
+PythonObject
+PythonTuple::GetItemAtIndex(uint32_t index) const
+{
+    if (IsValid())
+        return PythonObject(PyRefType::Borrowed, PyTuple_GetItem(m_py_obj, index));
+    return PythonObject();
+}
+
+void
+PythonTuple::SetItemAtIndex(uint32_t index, const PythonObject &object)
+{
+    if (IsAllocated() && object.IsValid())
+    {
+        // PyTuple_SetItem is documented to "steal" a reference, so we need to
+        // convert it to an owned reference by incrementing it.
+        Py_INCREF(object.get());
+        PyTuple_SetItem(m_py_obj, index, object.get());
+    }
+}
+
+StructuredData::ArraySP
+PythonTuple::CreateStructuredArray() const
+{
+    StructuredData::ArraySP result(new StructuredData::Array);
+    uint32_t count = GetSize();
+    for (uint32_t i = 0; i < count; ++i)
+    {
+        PythonObject obj = GetItemAtIndex(i);
+        result->AddItem(obj.CreateStructuredObject());
+    }
+    return result;
+}
+
+//----------------------------------------------------------------------
+// PythonDictionary
+//----------------------------------------------------------------------
+
+PythonDictionary::PythonDictionary(PyInitialValue value)
+    : PythonObject()
+{
+    if (value == PyInitialValue::Empty)
+        Reset(PyRefType::Owned, PyDict_New());
+}
+
+PythonDictionary::PythonDictionary(PyRefType type, PyObject *py_obj)
+    : PythonObject()
+{
+    Reset(type, py_obj); // Use "Reset()" to ensure that py_obj is a dictionary
+}
+
+PythonDictionary::PythonDictionary(const PythonDictionary &object)
+    : PythonObject(object)
+{
+}
+
+PythonDictionary::~PythonDictionary ()
+{
+}
+
+bool
+PythonDictionary::Check(PyObject *py_obj)
+{
+    if (!py_obj)
+        return false;
+
+    return PyDict_Check(py_obj);
+}
+
+void
+PythonDictionary::Reset(PyRefType type, PyObject *py_obj)
+{
+    // Grab the desired reference type so that if we end up rejecting
+    // `py_obj` it still gets decremented if necessary.
+    PythonObject result(type, py_obj);
+
+    if (!PythonDictionary::Check(py_obj))
+    {
+        PythonObject::Reset();
+        return;
+    }
+
+    // Calling PythonObject::Reset(const PythonObject&) will lead to stack overflow since it calls
+    // back into the virtual implementation.
+    PythonObject::Reset(PyRefType::Borrowed, result.get());
+}
+
+uint32_t
+PythonDictionary::GetSize() const
+{
+    if (IsValid())
+        return PyDict_Size(m_py_obj);
+    return 0;
+}
+
+PythonList
+PythonDictionary::GetKeys() const
+{
+    if (IsValid())
+        return PythonList(PyRefType::Owned, PyDict_Keys(m_py_obj));
+    return PythonList(PyInitialValue::Invalid);
+}
+
+PythonObject
+PythonDictionary::GetItemForKey(const PythonObject &key) const
+{
+    if (IsAllocated() && key.IsValid())
+        return PythonObject(PyRefType::Borrowed, PyDict_GetItem(m_py_obj, key.get()));
+    return PythonObject();
+}
+
+void
+PythonDictionary::SetItemForKey(const PythonObject &key, const PythonObject &value)
+{
+    if (IsAllocated() && key.IsValid() && value.IsValid())
+        PyDict_SetItem(m_py_obj, key.get(), value.get());
+}
+
+StructuredData::DictionarySP
+PythonDictionary::CreateStructuredDictionary() const
+{
+    StructuredData::DictionarySP result(new StructuredData::Dictionary);
+    PythonList keys(GetKeys());
+    uint32_t num_keys = keys.GetSize();
+    for (uint32_t i = 0; i < num_keys; ++i)
+    {
+        PythonObject key = keys.GetItemAtIndex(i);
+        PythonObject value = GetItemForKey(key);
+        StructuredData::ObjectSP structured_value = value.CreateStructuredObject();
+        result->AddItem(key.Str().GetString(), structured_value);
+    }
+    return result;
+}
+
+PythonModule::PythonModule() : PythonObject()
+{
+}
+
+PythonModule::PythonModule(PyRefType type, PyObject *py_obj)
+{
+    Reset(type, py_obj); // Use "Reset()" to ensure that py_obj is a module
+}
+
+PythonModule::PythonModule(const PythonModule &dict) : PythonObject(dict)
+{
+}
+
+PythonModule::~PythonModule()
+{
+}
+
+PythonModule
+PythonModule::BuiltinsModule()
+{
+#if PY_MAJOR_VERSION >= 3
+    return AddModule("builtins");
+#else
+    return AddModule("__builtin__");
+#endif
+}
+
+PythonModule
+PythonModule::MainModule()
+{
+    return AddModule("__main__");
+}
+
+PythonModule
+PythonModule::AddModule(llvm::StringRef module)
+{
+    std::string str = module.str();
+    return PythonModule(PyRefType::Borrowed, PyImport_AddModule(str.c_str()));
+}
+
+
+PythonModule
+PythonModule::ImportModule(llvm::StringRef module)
+{
+    std::string str = module.str();
+    return PythonModule(PyRefType::Owned, PyImport_ImportModule(str.c_str()));
+}
+
+bool
+PythonModule::Check(PyObject *py_obj)
+{
+    if (!py_obj)
+        return false;
+
+    return PyModule_Check(py_obj);
+}
+
+void
+PythonModule::Reset(PyRefType type, PyObject *py_obj)
+{
+    // Grab the desired reference type so that if we end up rejecting
+    // `py_obj` it still gets decremented if necessary.
+    PythonObject result(type, py_obj);
+
+    if (!PythonModule::Check(py_obj))
+    {
+        PythonObject::Reset();
+        return;
+    }
+
+    // Calling PythonObject::Reset(const PythonObject&) will lead to stack overflow since it calls
+    // back into the virtual implementation.
+    PythonObject::Reset(PyRefType::Borrowed, result.get());
+}
+
+PythonDictionary
+PythonModule::GetDictionary() const
+{
+    return PythonDictionary(PyRefType::Borrowed, PyModule_GetDict(m_py_obj));
+}
+
+PythonCallable::PythonCallable() : PythonObject()
+{
+}
+
+PythonCallable::PythonCallable(PyRefType type, PyObject *py_obj)
+{
+    Reset(type, py_obj); // Use "Reset()" to ensure that py_obj is a callable
+}
+
+PythonCallable::PythonCallable(const PythonCallable &callable)
+    : PythonObject(callable)
+{
+}
+
+PythonCallable::~PythonCallable()
+{
+}
+
+bool
+PythonCallable::Check(PyObject *py_obj)
+{
+    if (!py_obj)
+        return false;
+
+    return PyCallable_Check(py_obj);
+}
+
+void
+PythonCallable::Reset(PyRefType type, PyObject *py_obj)
+{
+    // Grab the desired reference type so that if we end up rejecting
+    // `py_obj` it still gets decremented if necessary.
+    PythonObject result(type, py_obj);
+
+    if (!PythonCallable::Check(py_obj))
+    {
+        PythonObject::Reset();
+        return;
+    }
+
+    // Calling PythonObject::Reset(const PythonObject&) will lead to stack overflow since it calls
+    // back into the virtual implementation.
+    PythonObject::Reset(PyRefType::Borrowed, result.get());
+}
+
+
+PythonCallable::ArgInfo
+PythonCallable::GetNumArguments() const
+{
+    ArgInfo result = { 0, false, false };
+    if (!IsValid())
+        return result;
+
+    PyObject *py_func_obj = m_py_obj;
+    if (PyMethod_Check(py_func_obj))
+        py_func_obj = PyMethod_GET_FUNCTION(py_func_obj);
+
+    if (!py_func_obj)
+        return result;
+
+    PyCodeObject* code = (PyCodeObject*)PyFunction_GET_CODE(py_func_obj);
+    if (!code)
+        return result;
+
+    result.count = code->co_argcount;
+    result.has_varargs = !!(code->co_flags & CO_VARARGS);
+    result.has_kwargs = !!(code->co_flags & CO_VARKEYWORDS);
+    return result;
+}
+
+PythonObject
+PythonCallable::operator ()()
+{
+    return PythonObject(PyRefType::Owned,
+        PyObject_CallObject(m_py_obj, nullptr));
+}
+
+PythonObject
+PythonCallable::operator ()(std::initializer_list<PyObject*> args)
+{
+    PythonTuple arg_tuple(args);
+    return PythonObject(PyRefType::Owned,
+        PyObject_CallObject(m_py_obj, arg_tuple.get()));
+}
+
+PythonObject
+PythonCallable::operator ()(std::initializer_list<PythonObject> args)
+{
+    PythonTuple arg_tuple(args);
+    return PythonObject(PyRefType::Owned,
+        PyObject_CallObject(m_py_obj, arg_tuple.get()));
+}
+
+PythonFile::PythonFile()
+    : PythonObject()
+{
+}
+
+PythonFile::PythonFile(File &file, const char *mode)
+{
+    Reset(file, mode);
+}
+
+PythonFile::PythonFile(const char *path, const char *mode)
+{
+    FILE *fp = nullptr;
+    fp = fopen(path, mode);
+    lldb_private::File file(fp, true);
+    Reset(file, mode);
+}
+
+PythonFile::PythonFile(PyRefType type, PyObject *o)
+{
+    Reset(type, o);
+}
+
+PythonFile::~PythonFile()
+{
+}
+
+bool
+PythonFile::Check(PyObject *py_obj)
+{
+#if PY_MAJOR_VERSION < 3
+    return PyFile_Check(py_obj);
+#else
+    // In Python 3, there is no `PyFile_Check`, and in fact PyFile is not even a
+    // first-class object type anymore.  `PyFile_FromFd` is just a thin wrapper
+    // over `io.open()`, which returns some object derived from `io.IOBase`.
+    // As a result, the only way to detect a file in Python 3 is to check whether
+    // it inherits from `io.IOBase`.  Since it is possible for non-files to also
+    // inherit from `io.IOBase`, we additionally verify that it has the `fileno`
+    // attribute, which should guarantee that it is backed by the file system.
+    PythonObject io_module(PyRefType::Owned, PyImport_ImportModule("io"));
+    PythonDictionary io_dict(PyRefType::Borrowed, PyModule_GetDict(io_module.get()));
+    PythonObject io_base_class = io_dict.GetItemForKey(PythonString("IOBase"));
+
+    PythonObject object_type(PyRefType::Owned, PyObject_Type(py_obj));
+
+    if (1 != PyObject_IsSubclass(object_type.get(), io_base_class.get()))
+        return false;
+    if (!object_type.HasAttribute("fileno"))
+        return false;
+
+    return true;
+#endif
+}
+
+void
+PythonFile::Reset(PyRefType type, PyObject *py_obj)
+{
+    // Grab the desired reference type so that if we end up rejecting
+    // `py_obj` it still gets decremented if necessary.
+    PythonObject result(type, py_obj);
+
+    if (!PythonFile::Check(py_obj))
+    {
+        PythonObject::Reset();
+        return;
+    }
+
+    // Calling PythonObject::Reset(const PythonObject&) will lead to stack
+    // overflow since it calls back into the virtual implementation.
+    PythonObject::Reset(PyRefType::Borrowed, result.get());
+}
+
+void
+PythonFile::Reset(File &file, const char *mode)
+{
+    if (!file.IsValid())
+    {
+        Reset();
+        return;
+    }
+
+    char *cmode = const_cast<char *>(mode);
+#if PY_MAJOR_VERSION >= 3
+    Reset(PyRefType::Owned,
+        PyFile_FromFd(file.GetDescriptor(), nullptr, cmode, -1, nullptr, "ignore", nullptr, 0));
+#else
+    // Read through the Python source, doesn't seem to modify these strings
+    Reset(PyRefType::Owned,
+        PyFile_FromFile(file.GetStream(), const_cast<char *>(""), cmode, nullptr));
+#endif
+}
+
+bool
+PythonFile::GetUnderlyingFile(File &file) const
+{
+    if (!IsValid())
+        return false;
+
+    file.Close();
+    // We don't own the file descriptor returned by this function, make sure the
+    // File object knows about that.
+    file.SetDescriptor(PyObject_AsFileDescriptor(m_py_obj), false);
+    return file.IsValid();
+}
+
+
+#endif
diff --git a/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h b/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h
new file mode 100644
index 0000000000000..c9d17c0f0fad4
--- /dev/null
+++ b/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h
@@ -0,0 +1,498 @@
+//===-- PythonDataObjects.h--------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_PYTHONDATAOBJECTS_H
+#define LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_PYTHONDATAOBJECTS_H
+
+#ifndef LLDB_DISABLE_PYTHON
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-defines.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/StructuredData.h"
+#include "lldb/Core/Flags.h"
+#include "lldb/Host/File.h"
+#include "lldb/Interpreter/OptionValue.h"
+
+namespace lldb_private {
+
+class PythonString;
+class PythonList;
+class PythonDictionary;
+class PythonInteger;
+
+class StructuredPythonObject : public StructuredData::Generic
+{
+public:
+    StructuredPythonObject()
+        : StructuredData::Generic()
+    {
+    }
+
+    StructuredPythonObject(void *obj)
+        : StructuredData::Generic(obj)
+    {
+        Py_XINCREF(GetValue());
+    }
+
+    ~StructuredPythonObject() override
+    {
+        if (Py_IsInitialized())
+            Py_XDECREF(GetValue());
+        SetValue(nullptr);
+    }
+
+    bool
+    IsValid() const override
+    {
+        return GetValue() && GetValue() != Py_None;
+    }
+
+    void Dump(Stream &s) const override;
+
+private:
+    DISALLOW_COPY_AND_ASSIGN(StructuredPythonObject);
+};
+
+enum class PyObjectType
+{
+    Unknown,
+    None,
+    Integer,
+    Dictionary,
+    List,
+    String,
+    Module,
+    Callable,
+    Tuple,
+    File
+};
+
+enum class PyRefType
+{
+    Borrowed, // We are not given ownership of the incoming PyObject.
+              // We cannot safely hold it without calling Py_INCREF.
+    Owned     // We have ownership of the incoming PyObject.  We should
+              // not call Py_INCREF.
+};
+
+enum class PyInitialValue
+{
+    Invalid,
+    Empty
+};
+
+class PythonObject
+{
+public:
+    PythonObject()
+        : m_py_obj(nullptr)
+    {
+    }
+
+    PythonObject(PyRefType type, PyObject *py_obj)
+        : m_py_obj(nullptr)
+    {
+        Reset(type, py_obj);
+    }
+
+    PythonObject(const PythonObject &rhs)
+        : m_py_obj(nullptr)
+    {
+        Reset(rhs);
+    }
+
+    virtual ~PythonObject()
+    {
+        Reset();
+    }
+
+    void
+    Reset()
+    {
+        // Avoid calling the virtual method since it's not necessary
+        // to actually validate the type of the PyObject if we're
+        // just setting to null.
+        if (Py_IsInitialized())
+            Py_XDECREF(m_py_obj);
+        m_py_obj = nullptr;
+    }
+
+    void
+    Reset(const PythonObject &rhs)
+    {
+        // Avoid calling the virtual method if it's not necessary
+        // to actually validate the type of the PyObject.
+        if (!rhs.IsValid())
+            Reset();
+        else
+            Reset(PyRefType::Borrowed, rhs.m_py_obj);
+    }
+
+    // PythonObject is implicitly convertible to PyObject *, which will call the
+    // wrong overload.  We want to explicitly disallow this, since a PyObject
+    // *always* owns its reference.  Therefore the overload which takes a
+    // PyRefType doesn't make sense, and the copy constructor should be used.
+    void
+    Reset(PyRefType type, const PythonObject &ref) = delete;
+
+    virtual void
+    Reset(PyRefType type, PyObject *py_obj)
+    {
+        if (py_obj == m_py_obj)
+            return;
+
+        if (Py_IsInitialized())
+            Py_XDECREF(m_py_obj);
+
+        m_py_obj = py_obj;
+
+        // If this is a borrowed reference, we need to convert it to
+        // an owned reference by incrementing it.  If it is an owned
+        // reference (for example the caller allocated it with PyDict_New()
+        // then we must *not* increment it.
+        if (Py_IsInitialized() && type == PyRefType::Borrowed)
+            Py_XINCREF(m_py_obj);
+    }
+        
+    void
+    Dump () const
+    {
+        if (m_py_obj)
+            _PyObject_Dump (m_py_obj);
+        else
+            puts ("NULL");
+    }
+        
+    void
+    Dump (Stream &strm) const;
+
+    PyObject*
+    get() const
+    {
+        return m_py_obj;
+    }
+
+    PyObject*
+    release()
+    {
+        PyObject *result = m_py_obj;
+        m_py_obj = nullptr;
+        return result;
+    }
+
+    PythonObject &
+    operator=(const PythonObject &other)
+    {
+        Reset(PyRefType::Borrowed, other.get());
+        return *this;
+    }
+
+    PyObjectType
+    GetObjectType() const;
+
+    PythonString
+    Repr() const;
+
+    PythonString
+    Str() const;
+
+    static PythonObject
+    ResolveNameWithDictionary(llvm::StringRef name, const PythonDictionary &dict);
+
+    template<typename T>
+    static T
+    ResolveNameWithDictionary(llvm::StringRef name, const PythonDictionary &dict)
+    {
+        return ResolveNameWithDictionary(name, dict).AsType<T>();
+    }
+
+    PythonObject
+    ResolveName(llvm::StringRef name) const;
+
+    template<typename T>
+    T
+    ResolveName(llvm::StringRef name) const
+    {
+        return ResolveName(name).AsType<T>();
+    }
+
+    bool
+    HasAttribute(llvm::StringRef attribute) const;
+
+    PythonObject
+    GetAttributeValue(llvm::StringRef attribute) const;
+
+    bool
+    IsValid() const;
+
+    bool
+    IsAllocated() const;
+
+    bool
+    IsNone() const;
+
+    template<typename T>
+    T AsType() const
+    {
+        if (!T::Check(m_py_obj))
+            return T();
+        return T(PyRefType::Borrowed, m_py_obj);
+    }
+
+    StructuredData::ObjectSP
+    CreateStructuredObject() const;
+
+protected:
+    PyObject* m_py_obj;
+};
+
+class PythonString : public PythonObject
+{
+public:
+    PythonString();
+    explicit PythonString(llvm::StringRef string);
+    explicit PythonString(const char *string);
+    PythonString(PyRefType type, PyObject *o);
+    PythonString(const PythonString &object);
+
+    ~PythonString() override;
+
+    static bool Check(PyObject *py_obj);
+
+    // Bring in the no-argument base class version
+    using PythonObject::Reset;
+
+    void Reset(PyRefType type, PyObject *py_obj) override;
+
+    llvm::StringRef
+    GetString() const;
+
+    size_t
+    GetSize() const;
+
+    void SetString(llvm::StringRef string);
+
+    StructuredData::StringSP CreateStructuredString() const;
+};
+
+class PythonInteger : public PythonObject
+{
+public:
+    PythonInteger();
+    explicit PythonInteger(int64_t value);
+    PythonInteger(PyRefType type, PyObject *o);
+    PythonInteger(const PythonInteger &object);
+
+    ~PythonInteger() override;
+
+    static bool Check(PyObject *py_obj);
+
+    // Bring in the no-argument base class version
+    using PythonObject::Reset;
+
+    void Reset(PyRefType type, PyObject *py_obj) override;
+
+    int64_t GetInteger() const;
+
+    void
+    SetInteger (int64_t value);
+
+    StructuredData::IntegerSP CreateStructuredInteger() const;
+};
+
+class PythonList : public PythonObject
+{
+public:
+    PythonList() {}
+    explicit PythonList(PyInitialValue value);
+    explicit PythonList(int list_size);
+    PythonList(PyRefType type, PyObject *o);
+    PythonList(const PythonList &list);
+
+    ~PythonList() override;
+
+    static bool Check(PyObject *py_obj);
+
+    // Bring in the no-argument base class version
+    using PythonObject::Reset;
+
+    void Reset(PyRefType type, PyObject *py_obj) override;
+
+    uint32_t GetSize() const;
+
+    PythonObject GetItemAtIndex(uint32_t index) const;
+
+    void SetItemAtIndex(uint32_t index, const PythonObject &object);
+
+    void AppendItem(const PythonObject &object);
+
+    StructuredData::ArraySP CreateStructuredArray() const;
+};
+
+class PythonTuple : public PythonObject
+{
+public:
+    PythonTuple() {}
+    explicit PythonTuple(PyInitialValue value);
+    explicit PythonTuple(int tuple_size);
+    PythonTuple(PyRefType type, PyObject *o);
+    PythonTuple(const PythonTuple &tuple);
+    PythonTuple(std::initializer_list<PythonObject> objects);
+    PythonTuple(std::initializer_list<PyObject*> objects);
+
+    ~PythonTuple() override;
+
+    static bool Check(PyObject *py_obj);
+
+    // Bring in the no-argument base class version
+    using PythonObject::Reset;
+
+    void Reset(PyRefType type, PyObject *py_obj) override;
+
+    uint32_t GetSize() const;
+
+    PythonObject GetItemAtIndex(uint32_t index) const;
+
+    void SetItemAtIndex(uint32_t index, const PythonObject &object);
+
+    StructuredData::ArraySP CreateStructuredArray() const;
+};
+
+class PythonDictionary : public PythonObject
+{
+public:
+    PythonDictionary() {}
+    explicit PythonDictionary(PyInitialValue value);
+    PythonDictionary(PyRefType type, PyObject *o);
+    PythonDictionary(const PythonDictionary &dict);
+
+    ~PythonDictionary() override;
+
+    static bool Check(PyObject *py_obj);
+
+    // Bring in the no-argument base class version
+    using PythonObject::Reset;
+
+    void Reset(PyRefType type, PyObject *py_obj) override;
+
+    uint32_t GetSize() const;
+
+    PythonList GetKeys() const;
+
+    PythonObject GetItemForKey(const PythonObject &key) const;
+    void SetItemForKey(const PythonObject &key, const PythonObject &value);
+
+    StructuredData::DictionarySP CreateStructuredDictionary() const;
+};
+
+class PythonModule : public PythonObject
+{
+  public:
+    PythonModule();
+    PythonModule(PyRefType type, PyObject *o);
+    PythonModule(const PythonModule &dict);
+
+    ~PythonModule() override;
+
+    static bool Check(PyObject *py_obj);
+
+    static PythonModule
+    BuiltinsModule();
+
+    static PythonModule
+    MainModule();
+
+    static PythonModule
+    AddModule(llvm::StringRef module);
+
+    static PythonModule
+    ImportModule(llvm::StringRef module);
+
+    // Bring in the no-argument base class version
+    using PythonObject::Reset;
+
+    void Reset(PyRefType type, PyObject *py_obj) override;
+
+    PythonDictionary GetDictionary() const;
+};
+
+class PythonCallable : public PythonObject
+{
+public:
+    struct ArgInfo {
+        size_t count;
+        bool has_varargs : 1;
+        bool has_kwargs : 1;
+    };
+
+    PythonCallable();
+    PythonCallable(PyRefType type, PyObject *o);
+    PythonCallable(const PythonCallable &dict);
+
+    ~PythonCallable() override;
+
+    static bool
+    Check(PyObject *py_obj);
+
+    // Bring in the no-argument base class version
+    using PythonObject::Reset;
+
+    void
+    Reset(PyRefType type, PyObject *py_obj) override;
+
+    ArgInfo
+    GetNumArguments() const;
+
+    PythonObject
+    operator ()();
+
+    PythonObject
+    operator ()(std::initializer_list<PyObject*> args);
+
+    PythonObject
+    operator ()(std::initializer_list<PythonObject> args);
+
+    template<typename Arg, typename... Args>
+    PythonObject
+    operator ()(const Arg &arg, Args... args)
+    {
+        return operator()({ arg, args... });
+    }
+};
+
+
+class PythonFile : public PythonObject
+{
+  public:
+    PythonFile();
+    PythonFile(File &file, const char *mode);
+    PythonFile(const char *path, const char *mode);
+    PythonFile(PyRefType type, PyObject *o);
+
+    ~PythonFile() override;
+
+    static bool Check(PyObject *py_obj);
+
+    using PythonObject::Reset;
+
+    void Reset(PyRefType type, PyObject *py_obj) override;
+    void Reset(File &file, const char *mode);
+
+    bool GetUnderlyingFile(File &file) const;
+};
+
+} // namespace lldb_private
+
+#endif
+
+#endif // LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_PYTHONDATAOBJECTS_H
diff --git a/source/Plugins/ScriptInterpreter/Python/PythonExceptionState.cpp b/source/Plugins/ScriptInterpreter/Python/PythonExceptionState.cpp
new file mode 100644
index 0000000000000..2cbd85bfa11ef
--- /dev/null
+++ b/source/Plugins/ScriptInterpreter/Python/PythonExceptionState.cpp
@@ -0,0 +1,201 @@
+//===-- PythonExceptionState.cpp --------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLDB_DISABLE_PYTHON
+
+#include "lldb-python.h"
+#include "PythonExceptionState.h"
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace lldb_private;
+
+PythonExceptionState::PythonExceptionState(bool restore_on_exit)
+    : m_restore_on_exit(restore_on_exit)
+{
+    Acquire(restore_on_exit);
+}
+
+PythonExceptionState::~PythonExceptionState()
+{
+    if (m_restore_on_exit)
+        Restore();
+}
+
+void
+PythonExceptionState::Acquire(bool restore_on_exit)
+{
+    // If a state is already acquired, the user needs to decide whether they
+    // want to discard or restore it.  Don't allow the potential silent
+    // loss of a valid state.
+    assert(!IsError());
+
+    if (!HasErrorOccurred())
+        return;
+
+    PyObject *py_type = nullptr;
+    PyObject *py_value = nullptr;
+    PyObject *py_traceback = nullptr;
+    PyErr_Fetch(&py_type, &py_value, &py_traceback);
+    // PyErr_Fetch clears the error flag.
+    assert(!HasErrorOccurred());
+
+    // Ownership of the objects returned by `PyErr_Fetch` is transferred
+    // to us.
+    m_type.Reset(PyRefType::Owned, py_type);
+    m_value.Reset(PyRefType::Owned, py_value);
+    m_traceback.Reset(PyRefType::Owned, py_traceback);
+    m_restore_on_exit = restore_on_exit;
+}
+
+void
+PythonExceptionState::Restore()
+{
+    if (m_type.IsValid())
+    {
+        // The documentation for PyErr_Restore says "Do not pass a null type and
+        // non-null value or traceback.  So only restore if type was non-null
+        // to begin with.  In this case we're passing ownership back to Python
+        // so release them all.
+        PyErr_Restore(m_type.release(), m_value.release(), m_traceback.release());
+    }
+
+    // After we restore, we should not hold onto the exception state.  Demand that
+    // it be re-acquired.
+    Discard();
+}
+
+void
+PythonExceptionState::Discard()
+{
+    m_type.Reset();
+    m_value.Reset();
+    m_traceback.Reset();
+}
+
+void
+PythonExceptionState::Reset()
+{
+    if (m_restore_on_exit)
+        Restore();
+    else
+        Discard();
+}
+
+bool
+PythonExceptionState::HasErrorOccurred()
+{
+    return PyErr_Occurred();
+}
+
+bool
+PythonExceptionState::IsError() const
+{
+    return m_type.IsValid() || m_value.IsValid() || m_traceback.IsValid();
+}
+
+PythonObject
+PythonExceptionState::GetType() const
+{
+    return m_type;
+}
+
+PythonObject
+PythonExceptionState::GetValue() const
+{
+    return m_value;
+}
+
+PythonObject
+PythonExceptionState::GetTraceback() const
+{
+    return m_traceback;
+}
+
+std::string
+PythonExceptionState::Format() const
+{
+    // Don't allow this function to modify the error state.
+    PythonExceptionState state(true);
+
+    std::string backtrace = ReadBacktrace();
+    if (!IsError())
+        return std::string();
+
+    // It's possible that ReadPythonBacktrace generated another exception.
+    // If this happens we have to clear the exception, because otherwise
+    // PyObject_Str() will assert below.  That's why we needed to do the
+    // save / restore at the beginning of this function.
+    PythonExceptionState bt_error_state(false);
+
+    std::string error_string;
+    llvm::raw_string_ostream error_stream(error_string);
+    error_stream << m_value.Str().GetString() << "\n";
+
+    if (!bt_error_state.IsError())
+    {
+        // If we were able to read the backtrace, just append it.
+        error_stream << backtrace << "\n";
+    }
+    else
+    {
+        // Otherwise, append some information about why we were unable to
+        // obtain the backtrace.
+        PythonString bt_error = bt_error_state.GetValue().Str();
+        error_stream << "An error occurred while retrieving the backtrace: " << bt_error.GetString() << "\n";
+    }
+    return error_stream.str();
+}
+
+std::string
+PythonExceptionState::ReadBacktrace() const
+{
+    std::string retval("backtrace unavailable");
+
+    auto traceback_module = PythonModule::ImportModule("traceback");
+#if PY_MAJOR_VERSION >= 3
+    auto stringIO_module = PythonModule::ImportModule("io");
+#else
+    auto stringIO_module = PythonModule::ImportModule("StringIO");
+#endif
+    if (!m_traceback.IsAllocated())
+        return retval;
+
+    if (!traceback_module.IsAllocated() || !stringIO_module.IsAllocated())
+        return retval;
+
+    auto stringIO_builder = stringIO_module.ResolveName<PythonCallable>("StringIO");
+    if (!stringIO_builder.IsAllocated())
+        return retval;
+
+    auto stringIO_buffer = stringIO_builder();
+    if (!stringIO_buffer.IsAllocated())
+        return retval;
+
+    auto printTB = traceback_module.ResolveName<PythonCallable>("print_tb");
+    if (!printTB.IsAllocated())
+        return retval;
+
+    auto printTB_result = printTB(m_traceback.get(), Py_None, stringIO_buffer.get());
+    auto stringIO_getvalue = stringIO_buffer.ResolveName<PythonCallable>("getvalue");
+    if (!stringIO_getvalue.IsAllocated())
+        return retval;
+
+    auto printTB_string = stringIO_getvalue().AsType<PythonString>();
+    if (!printTB_string.IsAllocated())
+        return retval;
+
+    llvm::StringRef string_data(printTB_string.GetString());
+    retval.assign(string_data.data(), string_data.size());
+
+    return retval;
+}
+
+#endif
diff --git a/source/Plugins/ScriptInterpreter/Python/PythonExceptionState.h b/source/Plugins/ScriptInterpreter/Python/PythonExceptionState.h
new file mode 100644
index 0000000000000..c74e52b9ef560
--- /dev/null
+++ b/source/Plugins/ScriptInterpreter/Python/PythonExceptionState.h
@@ -0,0 +1,70 @@
+//===-- PythonExceptionState.h ----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_PYTHONEXCEPTIONSTATE_H
+#define LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_PYTHONEXCEPTIONSTATE_H
+
+#ifndef LLDB_DISABLE_PYTHON
+
+#include "PythonDataObjects.h"
+
+namespace lldb_private
+{
+
+class PythonExceptionState
+{
+  public:
+    explicit PythonExceptionState(bool restore_on_exit);
+    ~PythonExceptionState();
+
+    void
+    Acquire(bool restore_on_exit);
+
+    void
+    Restore();
+
+    void
+    Discard();
+
+    void
+    Reset();
+
+    static bool
+    HasErrorOccurred();
+
+    bool
+    IsError() const;
+
+    PythonObject
+    GetType() const;
+
+    PythonObject
+    GetValue() const;
+
+    PythonObject
+    GetTraceback() const;
+
+    std::string
+    Format() const;
+
+  private:
+    std::string
+    ReadBacktrace() const;
+
+    bool m_restore_on_exit;
+
+    PythonObject m_type;
+    PythonObject m_value;
+    PythonObject m_traceback;
+};
+}
+
+#endif
+
+#endif
diff --git a/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp b/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
new file mode 100644
index 0000000000000..b1dd34b46f69e
--- /dev/null
+++ b/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
@@ -0,0 +1,3172 @@
+//===-- ScriptInterpreterPython.cpp -----------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifdef LLDB_DISABLE_PYTHON
+
+// Python is disabled in this build
+
+#else
+
+#include "lldb-python.h"
+#include "ScriptInterpreterPython.h"
+#include "PythonDataObjects.h"
+#include "PythonExceptionState.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <mutex>
+#include <string>
+
+#include "lldb/API/SBValue.h"
+#include "lldb/Breakpoint/BreakpointLocation.h"
+#include "lldb/Breakpoint/StoppointCallbackContext.h"
+#include "lldb/Breakpoint/WatchpointOptions.h"
+#include "lldb/Core/Communication.h"
+#include "lldb/Core/Debugger.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Core/Timer.h"
+#include "lldb/Core/ValueObject.h"
+#include "lldb/DataFormatters/TypeSummary.h"
+#include "lldb/Host/ConnectionFileDescriptor.h"
+#include "lldb/Host/FileSystem.h"
+#include "lldb/Host/HostInfo.h"
+#include "lldb/Host/Pipe.h"
+#include "lldb/Interpreter/CommandInterpreter.h"
+#include "lldb/Interpreter/CommandReturnObject.h"
+#include "lldb/Target/Thread.h"
+#include "lldb/Target/ThreadPlan.h"
+
+#if defined(_WIN32)
+#include "lldb/Host/windows/ConnectionGenericFileWindows.h"
+#endif
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/STLExtras.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+static ScriptInterpreterPython::SWIGInitCallback g_swig_init_callback = nullptr;
+static ScriptInterpreterPython::SWIGBreakpointCallbackFunction g_swig_breakpoint_callback = nullptr;
+static ScriptInterpreterPython::SWIGWatchpointCallbackFunction g_swig_watchpoint_callback = nullptr;
+static ScriptInterpreterPython::SWIGPythonTypeScriptCallbackFunction g_swig_typescript_callback = nullptr;
+static ScriptInterpreterPython::SWIGPythonCreateSyntheticProvider g_swig_synthetic_script = nullptr;
+static ScriptInterpreterPython::SWIGPythonCreateCommandObject g_swig_create_cmd = nullptr;
+static ScriptInterpreterPython::SWIGPythonCalculateNumChildren g_swig_calc_children = nullptr;
+static ScriptInterpreterPython::SWIGPythonGetChildAtIndex g_swig_get_child_index = nullptr;
+static ScriptInterpreterPython::SWIGPythonGetIndexOfChildWithName g_swig_get_index_child = nullptr;
+static ScriptInterpreterPython::SWIGPythonCastPyObjectToSBValue g_swig_cast_to_sbvalue  = nullptr;
+static ScriptInterpreterPython::SWIGPythonGetValueObjectSPFromSBValue g_swig_get_valobj_sp_from_sbvalue = nullptr;
+static ScriptInterpreterPython::SWIGPythonUpdateSynthProviderInstance g_swig_update_provider = nullptr;
+static ScriptInterpreterPython::SWIGPythonMightHaveChildrenSynthProviderInstance g_swig_mighthavechildren_provider = nullptr;
+static ScriptInterpreterPython::SWIGPythonGetValueSynthProviderInstance g_swig_getvalue_provider = nullptr;
+static ScriptInterpreterPython::SWIGPythonCallCommand g_swig_call_command = nullptr;
+static ScriptInterpreterPython::SWIGPythonCallCommandObject g_swig_call_command_object = nullptr;
+static ScriptInterpreterPython::SWIGPythonCallModuleInit g_swig_call_module_init = nullptr;
+static ScriptInterpreterPython::SWIGPythonCreateOSPlugin g_swig_create_os_plugin = nullptr;
+static ScriptInterpreterPython::SWIGPythonScriptKeyword_Process g_swig_run_script_keyword_process = nullptr;
+static ScriptInterpreterPython::SWIGPythonScriptKeyword_Thread g_swig_run_script_keyword_thread = nullptr;
+static ScriptInterpreterPython::SWIGPythonScriptKeyword_Target g_swig_run_script_keyword_target = nullptr;
+static ScriptInterpreterPython::SWIGPythonScriptKeyword_Frame g_swig_run_script_keyword_frame = nullptr;
+static ScriptInterpreterPython::SWIGPythonScriptKeyword_Value g_swig_run_script_keyword_value = nullptr;
+static ScriptInterpreterPython::SWIGPython_GetDynamicSetting g_swig_plugin_get = nullptr;
+static ScriptInterpreterPython::SWIGPythonCreateScriptedThreadPlan g_swig_thread_plan_script = nullptr;
+static ScriptInterpreterPython::SWIGPythonCallThreadPlan g_swig_call_thread_plan = nullptr;
+
+static bool g_initialized = false;
+
+namespace
+{
+
+// Initializing Python is not a straightforward process.  We cannot control what
+// external code may have done before getting to this point in LLDB, including
+// potentially having already initialized Python, so we need to do a lot of work
+// to ensure that the existing state of the system is maintained across our
+// initialization.  We do this by using an RAII pattern where we save off initial
+// state at the beginning, and restore it at the end 
+struct InitializePythonRAII
+{
+public:
+    InitializePythonRAII() :
+        m_gil_state(PyGILState_UNLOCKED),
+        m_was_already_initialized(false)
+    {
+        // Python will muck with STDIN terminal state, so save off any current TTY
+        // settings so we can restore them.
+        m_stdin_tty_state.Save(STDIN_FILENO, false);
+
+        InitializePythonHome();
+
+        // Python < 3.2 and Python >= 3.2 reversed the ordering requirements for
+        // calling `Py_Initialize` and `PyEval_InitThreads`.  < 3.2 requires that you
+        // call `PyEval_InitThreads` first, and >= 3.2 requires that you call it last.
+#if (PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION >= 2) || (PY_MAJOR_VERSION > 3)
+        Py_InitializeEx(0);
+        InitializeThreadsPrivate();
+#else
+        InitializeThreadsPrivate();
+        Py_InitializeEx(0);
+#endif
+    }
+
+    ~InitializePythonRAII()
+    {
+        if (m_was_already_initialized)
+        {
+            Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_SCRIPT | LIBLLDB_LOG_VERBOSE));
+
+            if (log)
+            {
+                log->Printf("Releasing PyGILState. Returning to state = %slocked\n",
+                    m_was_already_initialized == PyGILState_UNLOCKED ? "un" : "");
+            }
+            PyGILState_Release(m_gil_state);
+        }
+        else
+        {
+            // We initialized the threads in this function, just unlock the GIL.
+            PyEval_SaveThread();
+        }
+
+        m_stdin_tty_state.Restore();
+    }
+
+private:
+    void InitializePythonHome()
+    {
+#if defined(LLDB_PYTHON_HOME)
+#if PY_MAJOR_VERSION >= 3
+        size_t size = 0;
+        static wchar_t *g_python_home = Py_DecodeLocale(LLDB_PYTHON_HOME, &size);
+#else
+        static char *g_python_home = LLDB_PYTHON_HOME;
+#endif
+        Py_SetPythonHome(g_python_home);
+#endif
+    }
+
+    void InitializeThreadsPrivate()
+    {
+        if (PyEval_ThreadsInitialized())
+        {
+            Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_SCRIPT | LIBLLDB_LOG_VERBOSE));
+
+            m_was_already_initialized = true;
+            m_gil_state = PyGILState_Ensure();
+            if (log)
+            {
+                log->Printf("Ensured PyGILState. Previous state = %slocked\n",
+                    m_gil_state == PyGILState_UNLOCKED ? "un" : "");
+            }
+            return;
+        }
+
+        // InitThreads acquires the GIL if it hasn't been called before.
+        PyEval_InitThreads();
+    }
+
+    TerminalState m_stdin_tty_state;
+    PyGILState_STATE m_gil_state;
+    bool m_was_already_initialized;
+};
+
+}
+
+ScriptInterpreterPython::Locker::Locker (ScriptInterpreterPython *py_interpreter,
+                                         uint16_t on_entry,
+                                         uint16_t on_leave,
+                                         FILE *in,
+                                         FILE *out,
+                                         FILE *err) :
+    ScriptInterpreterLocker (),
+    m_teardown_session( (on_leave & TearDownSession) == TearDownSession ),
+    m_python_interpreter(py_interpreter)
+{
+    DoAcquireLock();
+    if ((on_entry & InitSession) == InitSession)
+    {
+        if (DoInitSession(on_entry, in, out, err) == false)
+        {
+            // Don't teardown the session if we didn't init it.
+            m_teardown_session = false;
+        }
+    }
+}
+
+bool
+ScriptInterpreterPython::Locker::DoAcquireLock()
+{
+    Log *log (lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_SCRIPT | LIBLLDB_LOG_VERBOSE));
+    m_GILState = PyGILState_Ensure();
+    if (log)
+        log->Printf("Ensured PyGILState. Previous state = %slocked\n", m_GILState == PyGILState_UNLOCKED ? "un" : "");
+
+    // we need to save the thread state when we first start the command
+    // because we might decide to interrupt it while some action is taking
+    // place outside of Python (e.g. printing to screen, waiting for the network, ...)
+    // in that case, _PyThreadState_Current will be NULL - and we would be unable
+    // to set the asynchronous exception - not a desirable situation
+    m_python_interpreter->SetThreadState(PyThreadState_Get());
+    m_python_interpreter->IncrementLockCount();
+    return true;
+}
+
+bool
+ScriptInterpreterPython::Locker::DoInitSession(uint16_t on_entry_flags, FILE *in, FILE *out, FILE *err)
+{
+    if (!m_python_interpreter)
+        return false;
+    return m_python_interpreter->EnterSession (on_entry_flags, in, out, err);
+}
+
+bool
+ScriptInterpreterPython::Locker::DoFreeLock()
+{
+    Log *log (lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_SCRIPT | LIBLLDB_LOG_VERBOSE));
+    if (log)
+        log->Printf("Releasing PyGILState. Returning to state = %slocked\n", m_GILState == PyGILState_UNLOCKED ? "un" : "");
+    PyGILState_Release(m_GILState);
+    m_python_interpreter->DecrementLockCount();
+    return true;
+}
+
+bool
+ScriptInterpreterPython::Locker::DoTearDownSession()
+{
+    if (!m_python_interpreter)
+        return false;
+    m_python_interpreter->LeaveSession ();
+    return true;
+}
+
+ScriptInterpreterPython::Locker::~Locker()
+{
+    if (m_teardown_session)
+        DoTearDownSession();
+    DoFreeLock();
+}
+
+ScriptInterpreterPython::ScriptInterpreterPython(CommandInterpreter &interpreter) :
+    ScriptInterpreter(interpreter, eScriptLanguagePython),
+    IOHandlerDelegateMultiline("DONE"),
+    m_saved_stdin(),
+    m_saved_stdout(),
+    m_saved_stderr(),
+    m_main_module(),
+    m_lldb_module(),
+    m_session_dict(PyInitialValue::Invalid),
+    m_sys_module_dict(PyInitialValue::Invalid),
+    m_run_one_line_function(),
+    m_run_one_line_str_global(),
+    m_dictionary_name(interpreter.GetDebugger().GetInstanceName().AsCString()),
+    m_terminal_state(),
+    m_active_io_handler(eIOHandlerNone),
+    m_session_is_active(false),
+    m_pty_slave_is_open(false),
+    m_valid_session(true),
+    m_lock_count(0),
+    m_command_thread_state(nullptr)
+{
+    assert(g_initialized && "ScriptInterpreterPython created but InitializePrivate has not been called!");
+
+    m_dictionary_name.append("_dict");
+    StreamString run_string;
+    run_string.Printf ("%s = dict()", m_dictionary_name.c_str());
+
+    Locker locker(this,
+                  ScriptInterpreterPython::Locker::AcquireLock,
+                  ScriptInterpreterPython::Locker::FreeAcquiredLock);
+    PyRun_SimpleString (run_string.GetData());
+
+    run_string.Clear();
+    run_string.Printf ("run_one_line (%s, 'import copy, keyword, os, re, sys, uuid, lldb')", m_dictionary_name.c_str());
+    PyRun_SimpleString (run_string.GetData());
+
+    // Reloading modules requires a different syntax in Python 2 and Python 3.  This provides
+    // a consistent syntax no matter what version of Python.
+    run_string.Clear();
+    run_string.Printf("run_one_line (%s, 'from six.moves import reload_module')", m_dictionary_name.c_str());
+    PyRun_SimpleString(run_string.GetData());
+
+    // WARNING: temporary code that loads Cocoa formatters - this should be done on a per-platform basis rather than loading the whole set
+    // and letting the individual formatter classes exploit APIs to check whether they can/cannot do their task
+    run_string.Clear();
+    run_string.Printf ("run_one_line (%s, 'import lldb.formatters, lldb.formatters.cpp, pydoc')", m_dictionary_name.c_str());
+    PyRun_SimpleString (run_string.GetData());
+    run_string.Clear();
+
+    run_string.Printf ("run_one_line (%s, 'import lldb.embedded_interpreter; from lldb.embedded_interpreter import run_python_interpreter; from lldb.embedded_interpreter import run_one_line')", m_dictionary_name.c_str());
+    PyRun_SimpleString (run_string.GetData());
+    run_string.Clear();
+    
+    run_string.Printf ("run_one_line (%s, 'lldb.debugger_unique_id = %" PRIu64 "; pydoc.pager = pydoc.plainpager')", m_dictionary_name.c_str(),
+                       interpreter.GetDebugger().GetID());
+    PyRun_SimpleString (run_string.GetData());
+}
+
+ScriptInterpreterPython::~ScriptInterpreterPython ()
+{
+    // the session dictionary may hold objects with complex state
+    // which means that they may need to be torn down with some level of smarts
+    // and that, in turn, requires a valid thread state
+    // force Python to procure itself such a thread state, nuke the session dictionary
+    // and then release it for others to use and proceed with the rest of the shutdown
+    auto gil_state = PyGILState_Ensure();
+    m_session_dict.Reset();
+    PyGILState_Release(gil_state);
+}
+
+void
+ScriptInterpreterPython::Initialize()
+{
+    static std::once_flag g_once_flag;
+
+    std::call_once(g_once_flag, []()
+    {
+        InitializePrivate();
+
+        PluginManager::RegisterPlugin(GetPluginNameStatic(),
+                                      GetPluginDescriptionStatic(),
+                                      lldb::eScriptLanguagePython,
+                                      CreateInstance);
+    });
+}
+    
+void
+ScriptInterpreterPython::Terminate()
+{
+
+}
+    
+lldb::ScriptInterpreterSP
+ScriptInterpreterPython::CreateInstance(CommandInterpreter &interpreter)
+{
+    return std::make_shared<ScriptInterpreterPython>(interpreter);
+}
+    
+lldb_private::ConstString
+ScriptInterpreterPython::GetPluginNameStatic()
+{
+    static ConstString g_name("script-python");
+    return g_name;
+}
+
+const char *
+ScriptInterpreterPython::GetPluginDescriptionStatic()
+{
+    return "Embedded Python interpreter";
+}
+    
+lldb_private::ConstString
+ScriptInterpreterPython::GetPluginName()
+{
+    return GetPluginNameStatic();
+}
+    
+uint32_t
+ScriptInterpreterPython::GetPluginVersion()
+{
+    return 1;
+}
+
+void
+ScriptInterpreterPython::IOHandlerActivated (IOHandler &io_handler)
+{
+    const char *instructions = nullptr;
+    
+    switch (m_active_io_handler)
+    {
+    case eIOHandlerNone:
+            break;
+    case eIOHandlerBreakpoint:
+            instructions = R"(Enter your Python command(s). Type 'DONE' to end.
+def function (frame, bp_loc, internal_dict):
+    """frame: the lldb.SBFrame for the location at which you stopped
+       bp_loc: an lldb.SBBreakpointLocation for the breakpoint location information
+       internal_dict: an LLDB support object not to be used"""
+)";
+            break;
+    case eIOHandlerWatchpoint:
+            instructions = "Enter your Python command(s). Type 'DONE' to end.\n";
+            break;
+    }
+    
+    if (instructions)
+    {
+        StreamFileSP output_sp(io_handler.GetOutputStreamFile());
+        if (output_sp)
+        {
+            output_sp->PutCString(instructions);
+            output_sp->Flush();
+        }
+    }
+}
+
+void
+ScriptInterpreterPython::IOHandlerInputComplete (IOHandler &io_handler, std::string &data)
+{
+    io_handler.SetIsDone(true);
+    bool batch_mode = m_interpreter.GetBatchCommandMode();
+
+    switch (m_active_io_handler)
+    {
+    case eIOHandlerNone:
+        break;
+    case eIOHandlerBreakpoint:
+        {
+            std::vector<BreakpointOptions *> *bp_options_vec = (std::vector<BreakpointOptions *> *)io_handler.GetUserData();
+            for (auto bp_options : *bp_options_vec)
+            {
+                if (!bp_options)
+                    continue;
+                    
+                std::unique_ptr<BreakpointOptions::CommandData> data_ap(new BreakpointOptions::CommandData());
+                if (data_ap.get())
+                {
+                    data_ap->user_source.SplitIntoLines(data);
+                    
+                    if (GenerateBreakpointCommandCallbackData (data_ap->user_source, data_ap->script_source).Success())
+                    {
+                        BatonSP baton_sp (new BreakpointOptions::CommandBaton (data_ap.release()));
+                        bp_options->SetCallback (ScriptInterpreterPython::BreakpointCallbackFunction, baton_sp);
+                    }
+                    else if (!batch_mode)
+                    {
+                        StreamFileSP error_sp = io_handler.GetErrorStreamFile();
+                        if (error_sp)
+                        {
+                            error_sp->Printf ("Warning: No command attached to breakpoint.\n");
+                            error_sp->Flush();
+                        }
+                    }
+                }
+            }
+            m_active_io_handler = eIOHandlerNone;
+        }
+        break;
+    case eIOHandlerWatchpoint:
+        {
+            WatchpointOptions *wp_options = (WatchpointOptions *)io_handler.GetUserData();
+            std::unique_ptr<WatchpointOptions::CommandData> data_ap(new WatchpointOptions::CommandData());
+            if (data_ap.get())
+            {
+                data_ap->user_source.SplitIntoLines(data);
+                
+                if (GenerateWatchpointCommandCallbackData (data_ap->user_source, data_ap->script_source))
+                {
+                    BatonSP baton_sp (new WatchpointOptions::CommandBaton (data_ap.release()));
+                    wp_options->SetCallback (ScriptInterpreterPython::WatchpointCallbackFunction, baton_sp);
+                }
+                else if (!batch_mode)
+                {
+                    StreamFileSP error_sp = io_handler.GetErrorStreamFile();
+                    if (error_sp)
+                    {
+                        error_sp->Printf ("Warning: No command attached to breakpoint.\n");
+                        error_sp->Flush();
+                    }
+                }
+            }
+            m_active_io_handler = eIOHandlerNone;
+        }
+        break;
+    }
+}
+
+
+void
+ScriptInterpreterPython::ResetOutputFileHandle (FILE *fh)
+{
+}
+
+void
+ScriptInterpreterPython::SaveTerminalState (int fd)
+{
+    // Python mucks with the terminal state of STDIN. If we can possibly avoid
+    // this by setting the file handles up correctly prior to entering the
+    // interpreter we should. For now we save and restore the terminal state
+    // on the input file handle.
+    m_terminal_state.Save (fd, false);
+}
+
+void
+ScriptInterpreterPython::RestoreTerminalState ()
+{
+    // Python mucks with the terminal state of STDIN. If we can possibly avoid
+    // this by setting the file handles up correctly prior to entering the
+    // interpreter we should. For now we save and restore the terminal state
+    // on the input file handle.
+    m_terminal_state.Restore();
+}
+
+void
+ScriptInterpreterPython::LeaveSession ()
+{
+    Log *log (lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_SCRIPT));
+    if (log)
+        log->PutCString("ScriptInterpreterPython::LeaveSession()");
+
+    // checking that we have a valid thread state - since we use our own threading and locking
+    // in some (rare) cases during cleanup Python may end up believing we have no thread state
+    // and PyImport_AddModule will crash if that is the case - since that seems to only happen
+    // when destroying the SBDebugger, we can make do without clearing up stdout and stderr
+
+    // rdar://problem/11292882
+    // When the current thread state is NULL, PyThreadState_Get() issues a fatal error.
+    if (PyThreadState_GetDict())
+    {
+        PythonDictionary &sys_module_dict = GetSysModuleDictionary ();
+        if (sys_module_dict.IsValid())
+        {
+            if (m_saved_stdin.IsValid())
+            {
+                sys_module_dict.SetItemForKey(PythonString("stdin"), m_saved_stdin);
+                m_saved_stdin.Reset ();
+            }
+            if (m_saved_stdout.IsValid())
+            {
+                sys_module_dict.SetItemForKey(PythonString("stdout"), m_saved_stdout);
+                m_saved_stdout.Reset ();
+            }
+            if (m_saved_stderr.IsValid())
+            {
+                sys_module_dict.SetItemForKey(PythonString("stderr"), m_saved_stderr);
+                m_saved_stderr.Reset ();
+            }
+        }
+    }
+
+    m_session_is_active = false;
+}
+
+bool
+ScriptInterpreterPython::EnterSession (uint16_t on_entry_flags,
+                                       FILE *in,
+                                       FILE *out,
+                                       FILE *err)
+{
+    // If we have already entered the session, without having officially 'left' it, then there is no need to 
+    // 'enter' it again.
+    Log *log (lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_SCRIPT));
+    if (m_session_is_active)
+    {
+        if (log)
+            log->Printf("ScriptInterpreterPython::EnterSession(on_entry_flags=0x%" PRIx16 ") session is already active, returning without doing anything", on_entry_flags);
+        return false;
+    }
+
+    if (log)
+        log->Printf("ScriptInterpreterPython::EnterSession(on_entry_flags=0x%" PRIx16 ")", on_entry_flags);
+    
+
+    m_session_is_active = true;
+
+    StreamString run_string;
+
+    if (on_entry_flags & Locker::InitGlobals)
+    {
+        run_string.Printf (    "run_one_line (%s, 'lldb.debugger_unique_id = %" PRIu64, m_dictionary_name.c_str(), GetCommandInterpreter().GetDebugger().GetID());
+        run_string.Printf (    "; lldb.debugger = lldb.SBDebugger.FindDebuggerWithID (%" PRIu64 ")", GetCommandInterpreter().GetDebugger().GetID());
+        run_string.PutCString ("; lldb.target = lldb.debugger.GetSelectedTarget()");
+        run_string.PutCString ("; lldb.process = lldb.target.GetProcess()");
+        run_string.PutCString ("; lldb.thread = lldb.process.GetSelectedThread ()");
+        run_string.PutCString ("; lldb.frame = lldb.thread.GetSelectedFrame ()");
+        run_string.PutCString ("')");
+    }
+    else
+    {
+        // If we aren't initing the globals, we should still always set the debugger (since that is always unique.)
+        run_string.Printf (    "run_one_line (%s, 'lldb.debugger_unique_id = %" PRIu64, m_dictionary_name.c_str(), GetCommandInterpreter().GetDebugger().GetID());
+        run_string.Printf (    "; lldb.debugger = lldb.SBDebugger.FindDebuggerWithID (%" PRIu64 ")", GetCommandInterpreter().GetDebugger().GetID());
+        run_string.PutCString ("')");
+    }
+
+    PyRun_SimpleString (run_string.GetData());
+    run_string.Clear();
+
+    PythonDictionary &sys_module_dict = GetSysModuleDictionary ();
+    if (sys_module_dict.IsValid())
+    {
+        File in_file(in, false);
+        File out_file(out, false);
+        File err_file(err, false);
+
+        lldb::StreamFileSP in_sp;
+        lldb::StreamFileSP out_sp;
+        lldb::StreamFileSP err_sp;
+        if (!in_file.IsValid() || !out_file.IsValid() || !err_file.IsValid())
+            m_interpreter.GetDebugger().AdoptTopIOHandlerFilesIfInvalid (in_sp, out_sp, err_sp);
+
+        m_saved_stdin.Reset();
+
+        if ((on_entry_flags & Locker::NoSTDIN) == 0)
+        {
+            // STDIN is enabled
+            if (!in_file.IsValid() && in_sp)
+                in_file = in_sp->GetFile();
+            if (in_file.IsValid())
+            {
+                // Flush the file before giving it to python to avoid interleaved output.
+                in_file.Flush();
+
+                m_saved_stdin = sys_module_dict.GetItemForKey(PythonString("stdin")).AsType<PythonFile>();
+                // This call can deadlock your process if the file is locked
+                PythonFile new_file(in_file, "r");
+                sys_module_dict.SetItemForKey (PythonString("stdin"), new_file);
+            }
+        }
+
+        if (!out_file.IsValid() && out_sp)
+            out_file = out_sp->GetFile();
+        if (out_file.IsValid())
+        {
+            // Flush the file before giving it to python to avoid interleaved output.
+            out_file.Flush();
+
+            m_saved_stdout = sys_module_dict.GetItemForKey(PythonString("stdout")).AsType<PythonFile>();
+
+            PythonFile new_file(out_file, "w");
+            sys_module_dict.SetItemForKey (PythonString("stdout"), new_file);
+        }
+        else
+            m_saved_stdout.Reset();
+
+        if (!err_file.IsValid() && err_sp)
+            err_file = err_sp->GetFile();
+        if (err_file.IsValid())
+        {
+            // Flush the file before giving it to python to avoid interleaved output.
+            err_file.Flush();
+
+            m_saved_stderr = sys_module_dict.GetItemForKey(PythonString("stderr")).AsType<PythonFile>();
+
+            PythonFile new_file(err_file, "w");
+            sys_module_dict.SetItemForKey (PythonString("stderr"), new_file);
+        }
+        else
+            m_saved_stderr.Reset();
+    }
+
+    if (PyErr_Occurred())
+        PyErr_Clear ();
+    
+    return true;
+}
+
+PythonObject &
+ScriptInterpreterPython::GetMainModule()
+{
+    if (!m_main_module.IsValid())
+        m_main_module.Reset(PyRefType::Borrowed, PyImport_AddModule("__main__"));
+    return m_main_module;
+}
+
+PythonDictionary &
+ScriptInterpreterPython::GetSessionDictionary ()
+{
+    if (m_session_dict.IsValid())
+        return m_session_dict;
+
+    PythonObject &main_module = GetMainModule();
+    if (!main_module.IsValid())
+        return m_session_dict;
+
+    PythonDictionary main_dict(PyRefType::Borrowed, PyModule_GetDict(main_module.get()));
+    if (!main_dict.IsValid())
+        return m_session_dict;
+
+    PythonObject item = main_dict.GetItemForKey(PythonString(m_dictionary_name));
+    m_session_dict.Reset(PyRefType::Borrowed, item.get());
+    return m_session_dict;
+}
+
+PythonDictionary &
+ScriptInterpreterPython::GetSysModuleDictionary ()
+{
+    if (m_sys_module_dict.IsValid())
+        return m_sys_module_dict;
+
+    PythonObject sys_module(PyRefType::Borrowed, PyImport_AddModule("sys"));
+    if (sys_module.IsValid())
+        m_sys_module_dict.Reset(PyRefType::Borrowed, PyModule_GetDict(sys_module.get()));
+    return m_sys_module_dict;
+}
+
+static std::string
+GenerateUniqueName (const char* base_name_wanted,
+                    uint32_t& functions_counter,
+                    const void* name_token = nullptr)
+{
+    StreamString sstr;
+    
+    if (!base_name_wanted)
+        return std::string();
+    
+    if (!name_token)
+        sstr.Printf ("%s_%d", base_name_wanted, functions_counter++);
+    else
+        sstr.Printf ("%s_%p", base_name_wanted, name_token);
+    
+    return sstr.GetString();
+}
+
+bool
+ScriptInterpreterPython::GetEmbeddedInterpreterModuleObjects ()
+{
+    if (m_run_one_line_function.IsValid())
+        return true;
+
+    PythonObject module(PyRefType::Borrowed, PyImport_AddModule ("lldb.embedded_interpreter"));
+    if (!module.IsValid())
+        return false;
+
+    PythonDictionary module_dict(PyRefType::Borrowed, PyModule_GetDict(module.get()));
+    if (!module_dict.IsValid())
+        return false;
+
+    m_run_one_line_function = module_dict.GetItemForKey(PythonString("run_one_line"));
+    m_run_one_line_str_global = module_dict.GetItemForKey(PythonString("g_run_one_line_str"));
+    return m_run_one_line_function.IsValid();
+}
+
+static void
+ReadThreadBytesReceived(void *baton, const void *src, size_t src_len)
+{
+    if (src && src_len)
+    {
+        Stream *strm = (Stream *)baton;
+        strm->Write(src, src_len);
+        strm->Flush();
+    }
+}
+
+bool
+ScriptInterpreterPython::ExecuteOneLine (const char *command, CommandReturnObject *result, const ExecuteScriptOptions &options)
+{
+    if (!m_valid_session)
+        return false;
+    
+    if (command && command[0])
+    {
+        // We want to call run_one_line, passing in the dictionary and the command string.  We cannot do this through
+        // PyRun_SimpleString here because the command string may contain escaped characters, and putting it inside
+        // another string to pass to PyRun_SimpleString messes up the escaping.  So we use the following more complicated
+        // method to pass the command string directly down to Python.
+        Debugger &debugger = m_interpreter.GetDebugger();
+        
+        StreamFileSP input_file_sp;
+        StreamFileSP output_file_sp;
+        StreamFileSP error_file_sp;
+        Communication output_comm ("lldb.ScriptInterpreterPython.ExecuteOneLine.comm");
+        bool join_read_thread = false;
+        if (options.GetEnableIO())
+        {
+            if (result)
+            {
+                input_file_sp = debugger.GetInputFile();
+                // Set output to a temporary file so we can forward the results on to the result object
+                
+                Pipe pipe;
+                Error pipe_result = pipe.CreateNew(false);
+                if (pipe_result.Success())
+                {
+#if defined(_WIN32)
+                    lldb::file_t read_file = pipe.GetReadNativeHandle();
+                    pipe.ReleaseReadFileDescriptor();
+                    std::unique_ptr<ConnectionGenericFile> conn_ap(new ConnectionGenericFile(read_file, true));
+#else
+                    std::unique_ptr<ConnectionFileDescriptor> conn_ap(new ConnectionFileDescriptor(pipe.ReleaseReadFileDescriptor(), true));
+#endif
+                    if (conn_ap->IsConnected())
+                    {
+                        output_comm.SetConnection(conn_ap.release());
+                        output_comm.SetReadThreadBytesReceivedCallback(ReadThreadBytesReceived, &result->GetOutputStream());
+                        output_comm.StartReadThread();
+                        join_read_thread = true;
+                        FILE *outfile_handle = fdopen (pipe.ReleaseWriteFileDescriptor(), "w");
+                        output_file_sp.reset(new StreamFile(outfile_handle, true));
+                        error_file_sp = output_file_sp;
+                        if (outfile_handle)
+                            ::setbuf (outfile_handle, nullptr);
+                        
+                        result->SetImmediateOutputFile(debugger.GetOutputFile()->GetFile().GetStream());
+                        result->SetImmediateErrorFile(debugger.GetErrorFile()->GetFile().GetStream());
+                    }
+                }
+            }
+            if (!input_file_sp || !output_file_sp || !error_file_sp)
+                debugger.AdoptTopIOHandlerFilesIfInvalid(input_file_sp, output_file_sp, error_file_sp);
+        }
+        else
+        {
+            input_file_sp.reset (new StreamFile ());
+            input_file_sp->GetFile().Open(FileSystem::DEV_NULL, File::eOpenOptionRead);
+            output_file_sp.reset (new StreamFile ());
+            output_file_sp->GetFile().Open(FileSystem::DEV_NULL, File::eOpenOptionWrite);
+            error_file_sp = output_file_sp;
+        }
+
+        FILE *in_file = input_file_sp->GetFile().GetStream();
+        FILE *out_file = output_file_sp->GetFile().GetStream();
+        FILE *err_file = error_file_sp->GetFile().GetStream();
+        bool success = false;
+        {
+            // WARNING!  It's imperative that this RAII scope be as tight as possible.  In particular, the
+            // scope must end *before* we try to join the read thread.  The reason for this is that a
+            // pre-requisite for joining the read thread is that we close the write handle (to break the
+            // pipe and cause it to wake up and exit).  But acquiring the GIL as below will redirect Python's
+            // stdio to use this same handle.  If we close the handle while Python is still using it, bad
+            // things will happen.
+            Locker locker(this,
+                          ScriptInterpreterPython::Locker::AcquireLock |
+                          ScriptInterpreterPython::Locker::InitSession |
+                          (options.GetSetLLDBGlobals() ? ScriptInterpreterPython::Locker::InitGlobals : 0) |
+                          ((result && result->GetInteractive()) ? 0: Locker::NoSTDIN),
+                          ScriptInterpreterPython::Locker::FreeAcquiredLock |
+                          ScriptInterpreterPython::Locker::TearDownSession,
+                          in_file,
+                          out_file,
+                          err_file);
+        
+            // Find the correct script interpreter dictionary in the main module.
+            PythonDictionary &session_dict = GetSessionDictionary ();
+            if (session_dict.IsValid())
+            {
+                if (GetEmbeddedInterpreterModuleObjects ())
+                {
+                    if (PyCallable_Check(m_run_one_line_function.get()))
+                    {
+                        PythonObject pargs(PyRefType::Owned, Py_BuildValue("(Os)", session_dict.get(), command));
+                        if (pargs.IsValid())
+                        {
+                            PythonObject return_value(PyRefType::Owned,
+                                PyObject_CallObject(m_run_one_line_function.get(), pargs.get()));
+                            if (return_value.IsValid())
+                                success = true;
+                            else if (options.GetMaskoutErrors() && PyErr_Occurred ())
+                            {
+                                PyErr_Print();
+                                PyErr_Clear();
+                            }
+                        }
+                    }
+                }
+            }
+
+            // Flush our output and error file handles
+            ::fflush (out_file);
+            if (out_file != err_file)
+                ::fflush (err_file);
+        }
+        
+        if (join_read_thread)
+        {
+            // Close the write end of the pipe since we are done with our
+            // one line script. This should cause the read thread that
+            // output_comm is using to exit
+            output_file_sp->GetFile().Close();
+            // The close above should cause this thread to exit when it gets
+            // to the end of file, so let it get all its data
+            output_comm.JoinReadThread();
+            // Now we can close the read end of the pipe
+            output_comm.Disconnect();
+        }
+        
+        
+        if (success)
+            return true;
+
+        // The one-liner failed.  Append the error message.
+        if (result)
+            result->AppendErrorWithFormat ("python failed attempting to evaluate '%s'\n", command);
+        return false;
+    }
+
+    if (result)
+        result->AppendError ("empty command passed to python\n");
+    return false;
+}
+
+
+class IOHandlerPythonInterpreter :
+    public IOHandler
+{
+public:
+    
+    IOHandlerPythonInterpreter (Debugger &debugger,
+                                ScriptInterpreterPython *python) :
+        IOHandler (debugger, IOHandler::Type::PythonInterpreter),
+        m_python(python)
+    {
+        
+    }
+    
+    ~IOHandlerPythonInterpreter() override
+    {
+        
+    }
+    
+    ConstString
+    GetControlSequence (char ch) override
+    {
+        if (ch == 'd')
+            return ConstString("quit()\n");
+        return ConstString();
+    }
+
+    void
+    Run () override
+    {
+        if (m_python)
+        {
+            int stdin_fd = GetInputFD();
+            if (stdin_fd >= 0)
+            {
+                Terminal terminal(stdin_fd);
+                TerminalState terminal_state;
+                const bool is_a_tty = terminal.IsATerminal();
+                
+                if (is_a_tty)
+                {
+                    terminal_state.Save (stdin_fd, false);
+                    terminal.SetCanonical(false);
+                    terminal.SetEcho(true);
+                }
+                
+                ScriptInterpreterPython::Locker locker (m_python,
+                                                        ScriptInterpreterPython::Locker::AcquireLock |
+                                                        ScriptInterpreterPython::Locker::InitSession |
+                                                        ScriptInterpreterPython::Locker::InitGlobals,
+                                                        ScriptInterpreterPython::Locker::FreeAcquiredLock |
+                                                        ScriptInterpreterPython::Locker::TearDownSession);
+
+                // The following call drops into the embedded interpreter loop and stays there until the
+                // user chooses to exit from the Python interpreter.
+                // This embedded interpreter will, as any Python code that performs I/O, unlock the GIL before
+                // a system call that can hang, and lock it when the syscall has returned.
+                
+                // We need to surround the call to the embedded interpreter with calls to PyGILState_Ensure and
+                // PyGILState_Release (using the Locker above). This is because Python has a global lock which must be held whenever we want
+                // to touch any Python objects. Otherwise, if the user calls Python code, the interpreter state will be off,
+                // and things could hang (it's happened before).
+                
+                StreamString run_string;
+                run_string.Printf ("run_python_interpreter (%s)", m_python->GetDictionaryName ());
+                PyRun_SimpleString (run_string.GetData());
+                
+                if (is_a_tty)
+                    terminal_state.Restore();
+            }
+        }
+        SetIsDone(true);
+    }
+
+    void
+    Cancel () override
+    {
+        
+    }
+
+    bool
+    Interrupt () override
+    {
+        return m_python->Interrupt();
+    }
+    
+    void
+    GotEOF() override
+    {
+        
+    }
+protected:
+    ScriptInterpreterPython *m_python;
+};
+
+
+void
+ScriptInterpreterPython::ExecuteInterpreterLoop ()
+{
+    Timer scoped_timer (__PRETTY_FUNCTION__, __PRETTY_FUNCTION__);
+
+    Debugger &debugger = GetCommandInterpreter().GetDebugger();
+
+    // At the moment, the only time the debugger does not have an input file handle is when this is called
+    // directly from Python, in which case it is both dangerous and unnecessary (not to mention confusing) to
+    // try to embed a running interpreter loop inside the already running Python interpreter loop, so we won't
+    // do it.
+
+    if (!debugger.GetInputFile()->GetFile().IsValid())
+        return;
+
+    IOHandlerSP io_handler_sp (new IOHandlerPythonInterpreter (debugger, this));
+    if (io_handler_sp)
+    {
+        debugger.PushIOHandler(io_handler_sp);
+    }
+}
+
+bool
+ScriptInterpreterPython::Interrupt()
+{
+    Log *log (lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_SCRIPT));
+
+    if (IsExecutingPython())
+    {
+        PyThreadState *state = PyThreadState_Get();
+        if (!state)
+            state = GetThreadState();
+        if (state)
+        {
+            long tid = state->thread_id;
+            PyThreadState_Swap(state);
+            int num_threads = PyThreadState_SetAsyncExc(tid, PyExc_KeyboardInterrupt);
+            if (log)
+                log->Printf("ScriptInterpreterPython::Interrupt() sending PyExc_KeyboardInterrupt (tid = %li, num_threads = %i)...", tid, num_threads);
+            return true;
+        }
+    }
+    if (log)
+        log->Printf("ScriptInterpreterPython::Interrupt() python code not running, can't interrupt");
+    return false;
+
+}
+bool
+ScriptInterpreterPython::ExecuteOneLineWithReturn (const char *in_string,
+                                                   ScriptInterpreter::ScriptReturnType return_type,
+                                                   void *ret_value,
+                                                   const ExecuteScriptOptions &options)
+{
+
+    Locker locker(this,
+                  ScriptInterpreterPython::Locker::AcquireLock | ScriptInterpreterPython::Locker::InitSession | (options.GetSetLLDBGlobals() ? ScriptInterpreterPython::Locker::InitGlobals : 0) | Locker::NoSTDIN,
+                  ScriptInterpreterPython::Locker::FreeAcquiredLock | ScriptInterpreterPython::Locker::TearDownSession);
+
+    PythonObject py_return;
+    PythonObject &main_module = GetMainModule();
+    PythonDictionary globals(PyRefType::Borrowed, PyModule_GetDict(main_module.get()));
+    PythonObject py_error;
+    bool ret_success = false;
+    int success;
+    
+    PythonDictionary locals = GetSessionDictionary ();
+    
+    if (!locals.IsValid())
+    {
+        locals.Reset(PyRefType::Owned, PyObject_GetAttrString(globals.get(), m_dictionary_name.c_str()));
+    }
+        
+    if (!locals.IsValid())
+        locals = globals;
+
+    py_error.Reset(PyRefType::Borrowed, PyErr_Occurred());
+    if (py_error.IsValid())
+        PyErr_Clear();
+    
+    if (in_string != nullptr)
+    {
+        { // scope for PythonInputReaderManager
+            //PythonInputReaderManager py_input(options.GetEnableIO() ? this : NULL);
+            py_return.Reset(PyRefType::Owned, PyRun_String(in_string, Py_eval_input, globals.get(), locals.get()));
+            if (!py_return.IsValid())
+            {
+                py_error.Reset(PyRefType::Borrowed, PyErr_Occurred());
+                if (py_error.IsValid())
+                    PyErr_Clear();
+
+                py_return.Reset(PyRefType::Owned, PyRun_String(in_string, Py_single_input, globals.get(), locals.get()));
+            }
+        }
+
+        if (py_return.IsValid())
+        {
+            switch (return_type)
+            {
+                case eScriptReturnTypeCharPtr: // "char *"
+                {
+                    const char format[3] = "s#";
+                    success = PyArg_Parse (py_return.get(), format, (char **) ret_value);
+                    break;
+                }
+                case eScriptReturnTypeCharStrOrNone: // char* or NULL if py_return == Py_None
+                {
+                    const char format[3] = "z";
+                    success = PyArg_Parse (py_return.get(), format, (char **) ret_value);
+                    break;
+                }
+                case eScriptReturnTypeBool:
+                {
+                    const char format[2] = "b";
+                    success = PyArg_Parse (py_return.get(), format, (bool *) ret_value);
+                    break;
+                }
+                case eScriptReturnTypeShortInt:
+                {
+                    const char format[2] = "h";
+                    success = PyArg_Parse (py_return.get(), format, (short *) ret_value);
+                    break;
+                }
+                case eScriptReturnTypeShortIntUnsigned:
+                {
+                    const char format[2] = "H";
+                    success = PyArg_Parse (py_return.get(), format, (unsigned short *) ret_value);
+                    break;
+                }
+                case eScriptReturnTypeInt:
+                {
+                    const char format[2] = "i";
+                    success = PyArg_Parse (py_return.get(), format, (int *) ret_value);
+                    break;
+                }
+                case eScriptReturnTypeIntUnsigned:
+                {
+                    const char format[2] = "I";
+                    success = PyArg_Parse (py_return.get(), format, (unsigned int *) ret_value);
+                    break;
+                }
+                case eScriptReturnTypeLongInt:
+                {
+                    const char format[2] = "l";
+                    success = PyArg_Parse (py_return.get(), format, (long *) ret_value);
+                    break;
+                }
+                case eScriptReturnTypeLongIntUnsigned:
+                {
+                    const char format[2] = "k";
+                    success = PyArg_Parse (py_return.get(), format, (unsigned long *) ret_value);
+                    break;
+                }
+                case eScriptReturnTypeLongLong:
+                {
+                    const char format[2] = "L";
+                    success = PyArg_Parse (py_return.get(), format, (long long *) ret_value);
+                    break;
+                }
+                case eScriptReturnTypeLongLongUnsigned:
+                {
+                    const char format[2] = "K";
+                    success = PyArg_Parse (py_return.get(), format, (unsigned long long *) ret_value);
+                    break;
+                }
+                case eScriptReturnTypeFloat:
+                {
+                    const char format[2] = "f";
+                    success = PyArg_Parse (py_return.get(), format, (float *) ret_value);
+                    break;
+                }
+                case eScriptReturnTypeDouble:
+                {
+                    const char format[2] = "d";
+                    success = PyArg_Parse (py_return.get(), format, (double *) ret_value);
+                    break;
+                }
+                case eScriptReturnTypeChar:
+                {
+                    const char format[2] = "c";
+                    success = PyArg_Parse (py_return.get(), format, (char *) ret_value);
+                    break;
+                }
+                case eScriptReturnTypeOpaqueObject:
+                {
+                    success = true;
+                    PyObject *saved_value = py_return.get();
+                    Py_XINCREF(saved_value);
+                    *((PyObject **)ret_value) = saved_value;
+                    break;
+                }
+            }
+
+            if (success)
+                ret_success = true;
+            else
+                ret_success = false;
+        }
+    }
+
+    py_error.Reset(PyRefType::Borrowed, PyErr_Occurred());
+    if (py_error.IsValid())
+    {
+        ret_success = false;
+        if (options.GetMaskoutErrors())
+        {
+            if (PyErr_GivenExceptionMatches (py_error.get(), PyExc_SyntaxError))
+                PyErr_Print ();
+            PyErr_Clear();
+        }
+    }
+
+    return ret_success;
+}
+
+Error
+ScriptInterpreterPython::ExecuteMultipleLines (const char *in_string, const ExecuteScriptOptions &options)
+{
+    Error error;
+    
+    Locker locker(this,
+                  ScriptInterpreterPython::Locker::AcquireLock      | ScriptInterpreterPython::Locker::InitSession | (options.GetSetLLDBGlobals() ? ScriptInterpreterPython::Locker::InitGlobals : 0) | Locker::NoSTDIN,
+                  ScriptInterpreterPython::Locker::FreeAcquiredLock | ScriptInterpreterPython::Locker::TearDownSession);
+
+    PythonObject return_value;
+    PythonObject &main_module = GetMainModule();
+    PythonDictionary globals(PyRefType::Borrowed, PyModule_GetDict(main_module.get()));
+    PythonObject py_error;
+
+    PythonDictionary locals = GetSessionDictionary();
+
+    if (!locals.IsValid())
+        locals.Reset(PyRefType::Owned, PyObject_GetAttrString(globals.get(), m_dictionary_name.c_str()));
+
+    if (!locals.IsValid())
+        locals = globals;
+
+    py_error.Reset(PyRefType::Borrowed, PyErr_Occurred());
+    if (py_error.IsValid())
+        PyErr_Clear();
+    
+    if (in_string != nullptr)
+    {
+        PythonObject code_object;
+        code_object.Reset(PyRefType::Owned, Py_CompileString(in_string, "temp.py", Py_file_input));
+
+        if (code_object.IsValid())
+        {
+            // In Python 2.x, PyEval_EvalCode takes a PyCodeObject, but in Python 3.x, it takes
+            // a PyObject.  They are convertible (hence the function PyCode_Check(PyObject*), so
+            // we have to do the cast for Python 2.x
+#if PY_MAJOR_VERSION >= 3
+            PyObject *py_code_obj = code_object.get();
+#else
+            PyCodeObject *py_code_obj = reinterpret_cast<PyCodeObject *>(code_object.get());
+#endif
+            return_value.Reset(PyRefType::Owned, PyEval_EvalCode(py_code_obj, globals.get(), locals.get()));
+        }
+    }
+
+    PythonExceptionState exception_state(!options.GetMaskoutErrors());
+    if (exception_state.IsError())
+        error.SetErrorString(exception_state.Format().c_str());
+
+    return error;
+}
+
+
+void
+ScriptInterpreterPython::CollectDataForBreakpointCommandCallback (std::vector<BreakpointOptions *> &bp_options_vec,
+                                                                  CommandReturnObject &result)
+{
+    m_active_io_handler = eIOHandlerBreakpoint;
+    m_interpreter.GetPythonCommandsFromIOHandler ("    ", *this, true, &bp_options_vec);
+}
+
+void
+ScriptInterpreterPython::CollectDataForWatchpointCommandCallback (WatchpointOptions *wp_options,
+                                                                  CommandReturnObject &result)
+{
+    m_active_io_handler = eIOHandlerWatchpoint;
+    m_interpreter.GetPythonCommandsFromIOHandler ("    ", *this, true, wp_options);
+}
+
+void
+ScriptInterpreterPython::SetBreakpointCommandCallbackFunction (BreakpointOptions *bp_options,
+                                                               const char *function_name)
+{
+    // For now just cons up a oneliner that calls the provided function.
+    std::string oneliner("return ");
+    oneliner += function_name;
+    oneliner += "(frame, bp_loc, internal_dict)";
+    m_interpreter.GetScriptInterpreter()->SetBreakpointCommandCallback (bp_options,
+                                                                        oneliner.c_str());
+}
+
+// Set a Python one-liner as the callback for the breakpoint.
+Error
+ScriptInterpreterPython::SetBreakpointCommandCallback (BreakpointOptions *bp_options,
+                                                       const char *command_body_text)
+{
+    std::unique_ptr<BreakpointOptions::CommandData> data_ap(new BreakpointOptions::CommandData());
+
+    // Split the command_body_text into lines, and pass that to GenerateBreakpointCommandCallbackData.  That will
+    // wrap the body in an auto-generated function, and return the function name in script_source.  That is what
+    // the callback will actually invoke.
+    
+    data_ap->user_source.SplitIntoLines(command_body_text);
+    Error error = GenerateBreakpointCommandCallbackData (data_ap->user_source, data_ap->script_source);
+    if (error.Success())
+    {
+        BatonSP baton_sp (new BreakpointOptions::CommandBaton (data_ap.release()));
+        bp_options->SetCallback (ScriptInterpreterPython::BreakpointCallbackFunction, baton_sp);
+        return error;
+    }
+    else
+        return error;
+}
+
+// Set a Python one-liner as the callback for the watchpoint.
+void
+ScriptInterpreterPython::SetWatchpointCommandCallback (WatchpointOptions *wp_options,
+                                                       const char *oneliner)
+{
+    std::unique_ptr<WatchpointOptions::CommandData> data_ap(new WatchpointOptions::CommandData());
+
+    // It's necessary to set both user_source and script_source to the oneliner.
+    // The former is used to generate callback description (as in watchpoint command list)
+    // while the latter is used for Python to interpret during the actual callback.
+
+    data_ap->user_source.AppendString (oneliner);
+    data_ap->script_source.assign (oneliner);
+
+    if (GenerateWatchpointCommandCallbackData (data_ap->user_source, data_ap->script_source))
+    {
+        BatonSP baton_sp (new WatchpointOptions::CommandBaton (data_ap.release()));
+        wp_options->SetCallback (ScriptInterpreterPython::WatchpointCallbackFunction, baton_sp);
+    }
+    
+    return;
+}
+
+Error
+ScriptInterpreterPython::ExportFunctionDefinitionToInterpreter (StringList &function_def)
+{
+    // Convert StringList to one long, newline delimited, const char *.
+    std::string function_def_string(function_def.CopyList());
+
+    Error error = ExecuteMultipleLines (function_def_string.c_str(), ScriptInterpreter::ExecuteScriptOptions().SetEnableIO(false));
+    return error;
+}
+
+Error
+ScriptInterpreterPython::GenerateFunction(const char *signature, const StringList &input)
+{
+    Error error;
+    int num_lines = input.GetSize ();
+    if (num_lines == 0)
+    {
+        error.SetErrorString ("No input data.");
+        return error;
+    }
+    
+    if (!signature || *signature == 0)
+    {
+        error.SetErrorString("No output function name.");
+        return error;
+    }
+
+    StreamString sstr;
+    StringList auto_generated_function;
+    auto_generated_function.AppendString (signature);
+    auto_generated_function.AppendString ("     global_dict = globals()");   // Grab the global dictionary
+    auto_generated_function.AppendString ("     new_keys = internal_dict.keys()");    // Make a list of keys in the session dict
+    auto_generated_function.AppendString ("     old_keys = global_dict.keys()"); // Save list of keys in global dict
+    auto_generated_function.AppendString ("     global_dict.update (internal_dict)"); // Add the session dictionary to the 
+    // global dictionary.
+    
+    // Wrap everything up inside the function, increasing the indentation.
+    
+    auto_generated_function.AppendString("     if True:");
+    for (int i = 0; i < num_lines; ++i)
+    {
+        sstr.Clear ();
+        sstr.Printf ("       %s", input.GetStringAtIndex (i));
+        auto_generated_function.AppendString (sstr.GetData());
+    }
+    auto_generated_function.AppendString ("     for key in new_keys:");  // Iterate over all the keys from session dict
+    auto_generated_function.AppendString ("         internal_dict[key] = global_dict[key]");  // Update session dict values
+    auto_generated_function.AppendString ("         if key not in old_keys:");       // If key was not originally in global dict
+    auto_generated_function.AppendString ("             del global_dict[key]");      //  ...then remove key/value from global dict
+    
+    // Verify that the results are valid Python.
+    
+    error = ExportFunctionDefinitionToInterpreter (auto_generated_function);
+    
+    return error;
+}
+
+bool
+ScriptInterpreterPython::GenerateTypeScriptFunction (StringList &user_input, std::string& output, const void* name_token)
+{
+    static uint32_t num_created_functions = 0;
+    user_input.RemoveBlankLines ();
+    StreamString sstr;
+    
+    // Check to see if we have any data; if not, just return.
+    if (user_input.GetSize() == 0)
+        return false;
+    
+    // Take what the user wrote, wrap it all up inside one big auto-generated Python function, passing in the
+    // ValueObject as parameter to the function.
+    
+    std::string auto_generated_function_name(GenerateUniqueName("lldb_autogen_python_type_print_func", num_created_functions, name_token));
+    sstr.Printf ("def %s (valobj, internal_dict):", auto_generated_function_name.c_str());
+    
+    if (!GenerateFunction(sstr.GetData(), user_input).Success())
+        return false;
+
+    // Store the name of the auto-generated function to be called.
+    output.assign(auto_generated_function_name);
+    return true;
+}
+
+bool
+ScriptInterpreterPython::GenerateScriptAliasFunction (StringList &user_input, std::string &output)
+{
+    static uint32_t num_created_functions = 0;
+    user_input.RemoveBlankLines ();
+    StreamString sstr;
+    
+    // Check to see if we have any data; if not, just return.
+    if (user_input.GetSize() == 0)
+        return false;
+    
+    std::string auto_generated_function_name(GenerateUniqueName("lldb_autogen_python_cmd_alias_func", num_created_functions));
+
+    sstr.Printf ("def %s (debugger, args, result, internal_dict):", auto_generated_function_name.c_str());
+    
+    if (!GenerateFunction(sstr.GetData(),user_input).Success())
+        return false;
+    
+    // Store the name of the auto-generated function to be called.
+    output.assign(auto_generated_function_name);
+    return true;
+}
+
+
+bool
+ScriptInterpreterPython::GenerateTypeSynthClass (StringList &user_input, std::string &output, const void* name_token)
+{
+    static uint32_t num_created_classes = 0;
+    user_input.RemoveBlankLines ();
+    int num_lines = user_input.GetSize ();
+    StreamString sstr;
+    
+    // Check to see if we have any data; if not, just return.
+    if (user_input.GetSize() == 0)
+        return false;
+    
+    // Wrap all user input into a Python class
+    
+    std::string auto_generated_class_name(GenerateUniqueName("lldb_autogen_python_type_synth_class",num_created_classes,name_token));
+    
+    StringList auto_generated_class;
+    
+    // Create the function name & definition string.
+    
+    sstr.Printf ("class %s:", auto_generated_class_name.c_str());
+    auto_generated_class.AppendString (sstr.GetData());
+        
+    // Wrap everything up inside the class, increasing the indentation.
+    // we don't need to play any fancy indentation tricks here because there is no
+    // surrounding code whose indentation we need to honor
+    for (int i = 0; i < num_lines; ++i)
+    {
+        sstr.Clear ();
+        sstr.Printf ("     %s", user_input.GetStringAtIndex (i));
+        auto_generated_class.AppendString (sstr.GetData());
+    }
+    
+    
+    // Verify that the results are valid Python.
+    // (even though the method is ExportFunctionDefinitionToInterpreter, a class will actually be exported)
+    // (TODO: rename that method to ExportDefinitionToInterpreter)
+    if (!ExportFunctionDefinitionToInterpreter (auto_generated_class).Success())
+        return false;
+    
+    // Store the name of the auto-generated class
+    
+    output.assign(auto_generated_class_name);
+    return true;
+}
+
+StructuredData::GenericSP
+ScriptInterpreterPython::OSPlugin_CreatePluginObject(const char *class_name, lldb::ProcessSP process_sp)
+{
+    if (class_name == nullptr || class_name[0] == '\0')
+        return StructuredData::GenericSP();
+
+    if (!process_sp)
+        return StructuredData::GenericSP();
+
+    void* ret_val;
+    
+    {
+        Locker py_lock  (this,
+                         Locker::AcquireLock | Locker::NoSTDIN,
+                         Locker::FreeLock);
+        ret_val = g_swig_create_os_plugin    (class_name,
+                                              m_dictionary_name.c_str(),
+                                              process_sp);
+    }
+
+    return StructuredData::GenericSP(new StructuredPythonObject(ret_val));
+}
+
+StructuredData::DictionarySP
+ScriptInterpreterPython::OSPlugin_RegisterInfo(StructuredData::ObjectSP os_plugin_object_sp)
+{
+    Locker py_lock(this,
+                   Locker::AcquireLock | Locker::NoSTDIN,
+                   Locker::FreeLock);
+    
+    static char callee_name[] = "get_register_info";
+    
+    if (!os_plugin_object_sp)
+        return StructuredData::DictionarySP();
+
+    StructuredData::Generic *generic = os_plugin_object_sp->GetAsGeneric();
+    if (!generic)
+        return nullptr;
+
+    PythonObject implementor(PyRefType::Borrowed, (PyObject *)generic->GetValue());
+
+    if (!implementor.IsAllocated())
+        return StructuredData::DictionarySP();
+
+    PythonObject pmeth(PyRefType::Owned, PyObject_GetAttrString(implementor.get(), callee_name));
+
+    if (PyErr_Occurred())
+        PyErr_Clear();
+
+    if (!pmeth.IsAllocated())
+        return StructuredData::DictionarySP();
+    
+    if (PyCallable_Check(pmeth.get()) == 0)
+    {
+        if (PyErr_Occurred())
+            PyErr_Clear();
+        
+        return StructuredData::DictionarySP();
+    }
+    
+    if (PyErr_Occurred())
+        PyErr_Clear();
+    
+    // right now we know this function exists and is callable..
+    PythonObject py_return(PyRefType::Owned, PyObject_CallMethod(implementor.get(), callee_name, nullptr));
+
+    // if it fails, print the error but otherwise go on
+    if (PyErr_Occurred())
+    {
+        PyErr_Print();
+        PyErr_Clear();
+    }
+    assert(PythonDictionary::Check(py_return.get()) && "get_register_info returned unknown object type!");
+
+    PythonDictionary result_dict(PyRefType::Borrowed, py_return.get());
+    return result_dict.CreateStructuredDictionary();
+}
+
+StructuredData::ArraySP
+ScriptInterpreterPython::OSPlugin_ThreadsInfo(StructuredData::ObjectSP os_plugin_object_sp)
+{
+    Locker py_lock (this,
+                    Locker::AcquireLock | Locker::NoSTDIN,
+                    Locker::FreeLock);
+
+    static char callee_name[] = "get_thread_info";
+
+    if (!os_plugin_object_sp)
+        return StructuredData::ArraySP();
+
+    StructuredData::Generic *generic = os_plugin_object_sp->GetAsGeneric();
+    if (!generic)
+        return nullptr;
+
+    PythonObject implementor(PyRefType::Borrowed, (PyObject *)generic->GetValue());
+
+    if (!implementor.IsAllocated())
+        return StructuredData::ArraySP();
+
+    PythonObject pmeth(PyRefType::Owned, PyObject_GetAttrString(implementor.get(), callee_name));
+
+    if (PyErr_Occurred())
+        PyErr_Clear();
+
+    if (!pmeth.IsAllocated())
+        return StructuredData::ArraySP();
+    
+    if (PyCallable_Check(pmeth.get()) == 0)
+    {
+        if (PyErr_Occurred())
+            PyErr_Clear();
+        
+        return StructuredData::ArraySP();
+    }
+    
+    if (PyErr_Occurred())
+        PyErr_Clear();
+    
+    // right now we know this function exists and is callable..
+    PythonObject py_return(PyRefType::Owned, PyObject_CallMethod(implementor.get(), callee_name, nullptr));
+
+    // if it fails, print the error but otherwise go on
+    if (PyErr_Occurred())
+    {
+        PyErr_Print();
+        PyErr_Clear();
+    }
+
+    assert(PythonList::Check(py_return.get()) && "get_thread_info returned unknown object type!");
+
+    PythonList result_list(PyRefType::Borrowed, py_return.get());
+    return result_list.CreateStructuredArray();
+}
+
+// GetPythonValueFormatString provides a system independent type safe way to
+// convert a variable's type into a python value format. Python value formats
+// are defined in terms of builtin C types and could change from system to
+// as the underlying typedef for uint* types, size_t, off_t and other values
+// change.
+
+template <typename T>
+const char *GetPythonValueFormatString(T t)
+{
+    assert(!"Unhandled type passed to GetPythonValueFormatString(T), make a specialization of GetPythonValueFormatString() to support this type.");
+    return nullptr;
+}
+template <> const char *GetPythonValueFormatString (char *)             { return "s"; }
+template <> const char *GetPythonValueFormatString (char)               { return "b"; }
+template <> const char *GetPythonValueFormatString (unsigned char)      { return "B"; }
+template <> const char *GetPythonValueFormatString (short)              { return "h"; }
+template <> const char *GetPythonValueFormatString (unsigned short)     { return "H"; }
+template <> const char *GetPythonValueFormatString (int)                { return "i"; }
+template <> const char *GetPythonValueFormatString (unsigned int)       { return "I"; }
+template <> const char *GetPythonValueFormatString (long)               { return "l"; }
+template <> const char *GetPythonValueFormatString (unsigned long)      { return "k"; }
+template <> const char *GetPythonValueFormatString (long long)          { return "L"; }
+template <> const char *GetPythonValueFormatString (unsigned long long) { return "K"; }
+template <> const char *GetPythonValueFormatString (float t)            { return "f"; }
+template <> const char *GetPythonValueFormatString (double t)           { return "d"; }
+
+StructuredData::StringSP
+ScriptInterpreterPython::OSPlugin_RegisterContextData(StructuredData::ObjectSP os_plugin_object_sp, lldb::tid_t tid)
+{
+    Locker py_lock (this,
+                    Locker::AcquireLock | Locker::NoSTDIN,
+                    Locker::FreeLock);
+
+    static char callee_name[] = "get_register_data";
+    static char *param_format = const_cast<char *>(GetPythonValueFormatString(tid));
+    
+    if (!os_plugin_object_sp)
+        return StructuredData::StringSP();
+
+    StructuredData::Generic *generic = os_plugin_object_sp->GetAsGeneric();
+    if (!generic)
+        return nullptr;
+    PythonObject implementor(PyRefType::Borrowed, (PyObject *)generic->GetValue());
+
+    if (!implementor.IsAllocated())
+        return StructuredData::StringSP();
+
+    PythonObject pmeth(PyRefType::Owned, PyObject_GetAttrString(implementor.get(), callee_name));
+
+    if (PyErr_Occurred())
+        PyErr_Clear();
+
+    if (!pmeth.IsAllocated())
+        return StructuredData::StringSP();
+    
+    if (PyCallable_Check(pmeth.get()) == 0)
+    {
+        if (PyErr_Occurred())
+            PyErr_Clear();
+        return StructuredData::StringSP();
+    }
+    
+    if (PyErr_Occurred())
+        PyErr_Clear();
+    
+    // right now we know this function exists and is callable..
+    PythonObject py_return(PyRefType::Owned, PyObject_CallMethod(implementor.get(), callee_name, param_format, tid));
+
+    // if it fails, print the error but otherwise go on
+    if (PyErr_Occurred())
+    {
+        PyErr_Print();
+        PyErr_Clear();
+    }
+
+    assert(PythonString::Check(py_return.get()) && "get_register_data returned unknown object type!");
+
+    PythonString result_string(PyRefType::Borrowed, py_return.get());
+    return result_string.CreateStructuredString();
+}
+
+StructuredData::DictionarySP
+ScriptInterpreterPython::OSPlugin_CreateThread(StructuredData::ObjectSP os_plugin_object_sp, lldb::tid_t tid, lldb::addr_t context)
+{
+    Locker py_lock(this,
+                   Locker::AcquireLock | Locker::NoSTDIN,
+                   Locker::FreeLock);
+    
+    static char callee_name[] = "create_thread";
+    std::string param_format;
+    param_format += GetPythonValueFormatString(tid);
+    param_format += GetPythonValueFormatString(context);
+    
+    if (!os_plugin_object_sp)
+        return StructuredData::DictionarySP();
+
+    StructuredData::Generic *generic = os_plugin_object_sp->GetAsGeneric();
+    if (!generic)
+        return nullptr;
+
+    PythonObject implementor(PyRefType::Borrowed, (PyObject *)generic->GetValue());
+
+    if (!implementor.IsAllocated())
+        return StructuredData::DictionarySP();
+
+    PythonObject pmeth(PyRefType::Owned, PyObject_GetAttrString(implementor.get(), callee_name));
+
+    if (PyErr_Occurred())
+        PyErr_Clear();
+
+    if (!pmeth.IsAllocated())
+        return StructuredData::DictionarySP();
+    
+    if (PyCallable_Check(pmeth.get()) == 0)
+    {
+        if (PyErr_Occurred())
+            PyErr_Clear();
+        return StructuredData::DictionarySP();
+    }
+    
+    if (PyErr_Occurred())
+        PyErr_Clear();
+    
+    // right now we know this function exists and is callable..
+    PythonObject py_return(PyRefType::Owned, PyObject_CallMethod(implementor.get(), callee_name, &param_format[0], tid, context));
+
+    // if it fails, print the error but otherwise go on
+    if (PyErr_Occurred())
+    {
+        PyErr_Print();
+        PyErr_Clear();
+    }
+
+    assert(PythonDictionary::Check(py_return.get()) && "create_thread returned unknown object type!");
+
+    PythonDictionary result_dict(PyRefType::Borrowed, py_return.get());
+    return result_dict.CreateStructuredDictionary();
+}
+
+StructuredData::ObjectSP
+ScriptInterpreterPython::CreateScriptedThreadPlan(const char *class_name, lldb::ThreadPlanSP thread_plan_sp)
+{
+    if (class_name == nullptr || class_name[0] == '\0')
+        return StructuredData::ObjectSP();
+
+    if (!thread_plan_sp.get())
+        return StructuredData::ObjectSP();
+
+    Debugger &debugger = thread_plan_sp->GetTarget().GetDebugger();
+    ScriptInterpreter *script_interpreter = debugger.GetCommandInterpreter().GetScriptInterpreter();
+    ScriptInterpreterPython *python_interpreter = static_cast<ScriptInterpreterPython *>(script_interpreter);
+    
+    if (!script_interpreter)
+        return StructuredData::ObjectSP();
+
+    void* ret_val;
+
+    {
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        
+        ret_val = g_swig_thread_plan_script (class_name,
+                                             python_interpreter->m_dictionary_name.c_str(),
+                                             thread_plan_sp);
+    }
+
+    return StructuredData::ObjectSP(new StructuredPythonObject(ret_val));
+}
+
+bool
+ScriptInterpreterPython::ScriptedThreadPlanExplainsStop(StructuredData::ObjectSP implementor_sp, Event *event, bool &script_error)
+{
+    bool explains_stop = true;
+    StructuredData::Generic *generic = nullptr;
+    if (implementor_sp)
+        generic = implementor_sp->GetAsGeneric();
+    if (generic)
+    {
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        explains_stop = g_swig_call_thread_plan(generic->GetValue(), "explains_stop", event, script_error);
+        if (script_error)
+            return true;
+    }
+    return explains_stop;
+}
+
+bool
+ScriptInterpreterPython::ScriptedThreadPlanShouldStop(StructuredData::ObjectSP implementor_sp, Event *event, bool &script_error)
+{
+    bool should_stop = true;
+    StructuredData::Generic *generic = nullptr;
+    if (implementor_sp)
+        generic = implementor_sp->GetAsGeneric();
+    if (generic)
+    {
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        should_stop = g_swig_call_thread_plan(generic->GetValue(), "should_stop", event, script_error);
+        if (script_error)
+            return true;
+    }
+    return should_stop;
+}
+
+lldb::StateType
+ScriptInterpreterPython::ScriptedThreadPlanGetRunState(StructuredData::ObjectSP implementor_sp, bool &script_error)
+{
+    bool should_step = false;
+    StructuredData::Generic *generic = nullptr;
+    if (implementor_sp)
+        generic = implementor_sp->GetAsGeneric();
+    if (generic)
+    {
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        should_step = g_swig_call_thread_plan(generic->GetValue(), "should_step", NULL, script_error);
+        if (script_error)
+            should_step = true;
+    }
+    if (should_step)
+        return lldb::eStateStepping;
+    else
+        return lldb::eStateRunning;
+}
+
+StructuredData::ObjectSP
+ScriptInterpreterPython::LoadPluginModule(const FileSpec &file_spec, lldb_private::Error &error)
+{
+    if (!file_spec.Exists())
+    {
+        error.SetErrorString("no such file");
+        return StructuredData::ObjectSP();
+    }
+
+    StructuredData::ObjectSP module_sp;
+
+    if (LoadScriptingModule(file_spec.GetPath().c_str(),true,true,error,&module_sp))
+        return module_sp;
+
+    return StructuredData::ObjectSP();
+}
+
+StructuredData::DictionarySP
+ScriptInterpreterPython::GetDynamicSettings(StructuredData::ObjectSP plugin_module_sp, Target *target, const char *setting_name,
+                                            lldb_private::Error &error)
+{
+    if (!plugin_module_sp || !target || !setting_name || !setting_name[0] || !g_swig_plugin_get)
+        return StructuredData::DictionarySP();
+    StructuredData::Generic *generic = plugin_module_sp->GetAsGeneric();
+    if (!generic)
+        return StructuredData::DictionarySP();
+
+    PythonObject reply_pyobj;
+    {
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        TargetSP target_sp(target->shared_from_this());
+        reply_pyobj.Reset(PyRefType::Owned,
+                          (PyObject *)g_swig_plugin_get(generic->GetValue(), setting_name, target_sp));
+    }
+
+    PythonDictionary py_dict(PyRefType::Borrowed, reply_pyobj.get());
+    return py_dict.CreateStructuredDictionary();
+}
+
+StructuredData::ObjectSP
+ScriptInterpreterPython::CreateSyntheticScriptedProvider(const char *class_name, lldb::ValueObjectSP valobj)
+{
+    if (class_name == nullptr || class_name[0] == '\0')
+        return StructuredData::ObjectSP();
+
+    if (!valobj.get())
+        return StructuredData::ObjectSP();
+
+    ExecutionContext exe_ctx (valobj->GetExecutionContextRef());
+    Target *target = exe_ctx.GetTargetPtr();
+    
+    if (!target)
+        return StructuredData::ObjectSP();
+
+    Debugger &debugger = target->GetDebugger();
+    ScriptInterpreter *script_interpreter = debugger.GetCommandInterpreter().GetScriptInterpreter();
+    ScriptInterpreterPython *python_interpreter = (ScriptInterpreterPython *) script_interpreter;
+    
+    if (!script_interpreter)
+        return StructuredData::ObjectSP();
+
+    void *ret_val = nullptr;
+
+    {
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        ret_val = g_swig_synthetic_script (class_name,
+                                           python_interpreter->m_dictionary_name.c_str(),
+                                           valobj);
+    }
+
+    return StructuredData::ObjectSP(new StructuredPythonObject(ret_val));
+}
+
+StructuredData::GenericSP
+ScriptInterpreterPython::CreateScriptCommandObject (const char *class_name)
+{
+    DebuggerSP debugger_sp(GetCommandInterpreter().GetDebugger().shared_from_this());
+    
+    if (class_name == nullptr || class_name[0] == '\0')
+        return StructuredData::GenericSP();
+    
+    if (!debugger_sp.get())
+        return StructuredData::GenericSP();
+    
+    void* ret_val;
+    
+    {
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        ret_val = g_swig_create_cmd (class_name,
+                                     m_dictionary_name.c_str(),
+                                     debugger_sp);
+    }
+    
+    return StructuredData::GenericSP(new StructuredPythonObject(ret_val));
+}
+
+bool
+ScriptInterpreterPython::GenerateTypeScriptFunction (const char* oneliner, std::string& output, const void* name_token)
+{
+    StringList input;
+    input.SplitIntoLines(oneliner, strlen(oneliner));
+    return GenerateTypeScriptFunction(input, output, name_token);
+}
+
+bool
+ScriptInterpreterPython::GenerateTypeSynthClass (const char* oneliner, std::string& output, const void* name_token)
+{
+    StringList input;
+    input.SplitIntoLines(oneliner, strlen(oneliner));
+    return GenerateTypeSynthClass(input, output, name_token);
+}
+
+
+Error
+ScriptInterpreterPython::GenerateBreakpointCommandCallbackData (StringList &user_input, std::string& output)
+{
+    static uint32_t num_created_functions = 0;
+    user_input.RemoveBlankLines ();
+    StreamString sstr;
+    Error error;
+    if (user_input.GetSize() == 0)
+    {
+        error.SetErrorString("No input data.");
+        return error;
+    }
+
+    std::string auto_generated_function_name(GenerateUniqueName("lldb_autogen_python_bp_callback_func_",num_created_functions));
+    sstr.Printf ("def %s (frame, bp_loc, internal_dict):", auto_generated_function_name.c_str());
+    
+    error = GenerateFunction(sstr.GetData(), user_input);
+    if (!error.Success())
+        return error;
+    
+    // Store the name of the auto-generated function to be called.
+    output.assign(auto_generated_function_name);
+    return error;
+}
+
+bool
+ScriptInterpreterPython::GenerateWatchpointCommandCallbackData (StringList &user_input, std::string& output)
+{
+    static uint32_t num_created_functions = 0;
+    user_input.RemoveBlankLines ();
+    StreamString sstr;
+
+    if (user_input.GetSize() == 0)
+        return false;
+
+    std::string auto_generated_function_name(GenerateUniqueName("lldb_autogen_python_wp_callback_func_",num_created_functions));
+    sstr.Printf ("def %s (frame, wp, internal_dict):", auto_generated_function_name.c_str());
+    
+    if (!GenerateFunction(sstr.GetData(), user_input).Success())
+        return false;
+    
+    // Store the name of the auto-generated function to be called.
+    output.assign(auto_generated_function_name);
+    return true;
+}
+
+bool
+ScriptInterpreterPython::GetScriptedSummary(const char *python_function_name, lldb::ValueObjectSP valobj,
+                                            StructuredData::ObjectSP &callee_wrapper_sp, const TypeSummaryOptions &options,
+                                            std::string &retval)
+{
+    
+    Timer scoped_timer (__PRETTY_FUNCTION__, __PRETTY_FUNCTION__);
+    
+    if (!valobj.get())
+    {
+        retval.assign("<no object>");
+        return false;
+    }
+
+    void *old_callee = nullptr;
+    StructuredData::Generic *generic = nullptr;
+    if (callee_wrapper_sp)
+    {
+        generic = callee_wrapper_sp->GetAsGeneric();
+        if (generic)
+            old_callee = generic->GetValue();
+    }
+    void* new_callee = old_callee;
+    
+    bool ret_val;
+    if (python_function_name && *python_function_name)
+    {
+        {
+            Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+            {
+                TypeSummaryOptionsSP options_sp(new TypeSummaryOptions(options));
+                
+                Timer scoped_timer ("g_swig_typescript_callback","g_swig_typescript_callback");
+                ret_val = g_swig_typescript_callback (python_function_name,
+                                                      GetSessionDictionary().get(),
+                                                      valobj,
+                                                      &new_callee,
+                                                      options_sp,
+                                                      retval);
+            }
+        }
+    }
+    else
+    {
+        retval.assign("<no function name>");
+        return false;
+    }
+    
+    if (new_callee && old_callee != new_callee)
+        callee_wrapper_sp.reset(new StructuredPythonObject(new_callee));
+
+    return ret_val;
+}
+
+void
+ScriptInterpreterPython::Clear ()
+{
+    // Release any global variables that might have strong references to
+    // LLDB objects when clearing the python script interpreter.
+    Locker locker(this,
+                  ScriptInterpreterPython::Locker::AcquireLock,
+                  ScriptInterpreterPython::Locker::FreeAcquiredLock);
+
+    // This may be called as part of Py_Finalize.  In that case the modules are destroyed in random
+    // order and we can't guarantee that we can access these.
+    if (Py_IsInitialized())
+        PyRun_SimpleString("lldb.debugger = None; lldb.target = None; lldb.process = None; lldb.thread = None; lldb.frame = None");
+}
+
+bool
+ScriptInterpreterPython::BreakpointCallbackFunction 
+(
+    void *baton,
+    StoppointCallbackContext *context,
+    user_id_t break_id,
+    user_id_t break_loc_id
+)
+{
+    BreakpointOptions::CommandData *bp_option_data = (BreakpointOptions::CommandData *) baton;
+    const char *python_function_name = bp_option_data->script_source.c_str();
+
+    if (!context)
+        return true;
+        
+    ExecutionContext exe_ctx (context->exe_ctx_ref);
+    Target *target = exe_ctx.GetTargetPtr();
+    
+    if (!target)
+        return true;
+        
+    Debugger &debugger = target->GetDebugger();
+    ScriptInterpreter *script_interpreter = debugger.GetCommandInterpreter().GetScriptInterpreter();
+    ScriptInterpreterPython *python_interpreter = (ScriptInterpreterPython *) script_interpreter;
+    
+    if (!script_interpreter)
+        return true;
+    
+    if (python_function_name && python_function_name[0])
+    {
+        const StackFrameSP stop_frame_sp (exe_ctx.GetFrameSP());
+        BreakpointSP breakpoint_sp = target->GetBreakpointByID (break_id);
+        if (breakpoint_sp)
+        {
+            const BreakpointLocationSP bp_loc_sp (breakpoint_sp->FindLocationByID (break_loc_id));
+
+            if (stop_frame_sp && bp_loc_sp)
+            {
+                bool ret_val = true;
+                {
+                    Locker py_lock(python_interpreter, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+                    ret_val = g_swig_breakpoint_callback (python_function_name,
+                                                          python_interpreter->m_dictionary_name.c_str(),
+                                                          stop_frame_sp, 
+                                                          bp_loc_sp);
+                }
+                return ret_val;
+            }
+        }
+    }
+    // We currently always true so we stop in case anything goes wrong when
+    // trying to call the script function
+    return true;
+}
+
+bool
+ScriptInterpreterPython::WatchpointCallbackFunction 
+(
+    void *baton,
+    StoppointCallbackContext *context,
+    user_id_t watch_id
+)
+{
+    WatchpointOptions::CommandData *wp_option_data = (WatchpointOptions::CommandData *) baton;
+    const char *python_function_name = wp_option_data->script_source.c_str();
+
+    if (!context)
+        return true;
+        
+    ExecutionContext exe_ctx (context->exe_ctx_ref);
+    Target *target = exe_ctx.GetTargetPtr();
+    
+    if (!target)
+        return true;
+        
+    Debugger &debugger = target->GetDebugger();
+    ScriptInterpreter *script_interpreter = debugger.GetCommandInterpreter().GetScriptInterpreter();
+    ScriptInterpreterPython *python_interpreter = (ScriptInterpreterPython *) script_interpreter;
+    
+    if (!script_interpreter)
+        return true;
+    
+    if (python_function_name && python_function_name[0])
+    {
+        const StackFrameSP stop_frame_sp (exe_ctx.GetFrameSP());
+        WatchpointSP wp_sp = target->GetWatchpointList().FindByID (watch_id);
+        if (wp_sp)
+        {
+            if (stop_frame_sp && wp_sp)
+            {
+                bool ret_val = true;
+                {
+                    Locker py_lock(python_interpreter, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+                    ret_val = g_swig_watchpoint_callback (python_function_name,
+                                                          python_interpreter->m_dictionary_name.c_str(),
+                                                          stop_frame_sp, 
+                                                          wp_sp);
+                }
+                return ret_val;
+            }
+        }
+    }
+    // We currently always true so we stop in case anything goes wrong when
+    // trying to call the script function
+    return true;
+}
+
+size_t
+ScriptInterpreterPython::CalculateNumChildren(const StructuredData::ObjectSP &implementor_sp, uint32_t max)
+{
+    if (!implementor_sp)
+        return 0;
+    StructuredData::Generic *generic = implementor_sp->GetAsGeneric();
+    if (!generic)
+        return 0;
+    void *implementor = generic->GetValue();
+    if (!implementor)
+        return 0;
+    
+    if (!g_swig_calc_children)
+        return 0;
+
+    size_t ret_val = 0;
+    
+    {
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        ret_val = g_swig_calc_children (implementor, max);
+    }
+    
+    return ret_val;
+}
+
+lldb::ValueObjectSP
+ScriptInterpreterPython::GetChildAtIndex(const StructuredData::ObjectSP &implementor_sp, uint32_t idx)
+{
+    if (!implementor_sp)
+        return lldb::ValueObjectSP();
+
+    StructuredData::Generic *generic = implementor_sp->GetAsGeneric();
+    if (!generic)
+        return lldb::ValueObjectSP();
+    void *implementor = generic->GetValue();
+    if (!implementor)
+        return lldb::ValueObjectSP();
+    
+    if (!g_swig_get_child_index || !g_swig_cast_to_sbvalue)
+        return lldb::ValueObjectSP();
+    
+    lldb::ValueObjectSP ret_val;
+    
+    {
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        void* child_ptr = g_swig_get_child_index (implementor,idx);
+        if (child_ptr != nullptr && child_ptr != Py_None)
+        {
+            lldb::SBValue* sb_value_ptr = (lldb::SBValue*)g_swig_cast_to_sbvalue(child_ptr);
+            if (sb_value_ptr == nullptr)
+                Py_XDECREF(child_ptr);
+            else
+                ret_val = g_swig_get_valobj_sp_from_sbvalue (sb_value_ptr);
+        }
+        else
+        {
+            Py_XDECREF(child_ptr);
+        }
+    }
+    
+    return ret_val;
+}
+
+int
+ScriptInterpreterPython::GetIndexOfChildWithName(const StructuredData::ObjectSP &implementor_sp, const char *child_name)
+{
+    if (!implementor_sp)
+        return UINT32_MAX;
+
+    StructuredData::Generic *generic = implementor_sp->GetAsGeneric();
+    if (!generic)
+        return UINT32_MAX;
+    void *implementor = generic->GetValue();
+    if (!implementor)
+        return UINT32_MAX;
+    
+    if (!g_swig_get_index_child)
+        return UINT32_MAX;
+    
+    int ret_val = UINT32_MAX;
+    
+    {
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        ret_val = g_swig_get_index_child (implementor, child_name);
+    }
+    
+    return ret_val;
+}
+
+bool
+ScriptInterpreterPython::UpdateSynthProviderInstance(const StructuredData::ObjectSP &implementor_sp)
+{
+    bool ret_val = false;
+    
+    if (!implementor_sp)
+        return ret_val;
+
+    StructuredData::Generic *generic = implementor_sp->GetAsGeneric();
+    if (!generic)
+        return ret_val;
+    void *implementor = generic->GetValue();
+    if (!implementor)
+        return ret_val;
+    
+    if (!g_swig_update_provider)
+        return ret_val;
+    
+    {
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        ret_val = g_swig_update_provider (implementor);
+    }
+    
+    return ret_val;
+}
+
+bool
+ScriptInterpreterPython::MightHaveChildrenSynthProviderInstance(const StructuredData::ObjectSP &implementor_sp)
+{
+    bool ret_val = false;
+    
+    if (!implementor_sp)
+        return ret_val;
+
+    StructuredData::Generic *generic = implementor_sp->GetAsGeneric();
+    if (!generic)
+        return ret_val;
+    void *implementor = generic->GetValue();
+    if (!implementor)
+        return ret_val;
+    
+    if (!g_swig_mighthavechildren_provider)
+        return ret_val;
+    
+    {
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        ret_val = g_swig_mighthavechildren_provider (implementor);
+    }
+    
+    return ret_val;
+}
+
+lldb::ValueObjectSP
+ScriptInterpreterPython::GetSyntheticValue(const StructuredData::ObjectSP &implementor_sp)
+{
+    lldb::ValueObjectSP ret_val(nullptr);
+    
+    if (!implementor_sp)
+        return ret_val;
+
+    StructuredData::Generic *generic = implementor_sp->GetAsGeneric();
+    if (!generic)
+        return ret_val;
+    void *implementor = generic->GetValue();
+    if (!implementor)
+        return ret_val;
+    
+    if (!g_swig_getvalue_provider || !g_swig_cast_to_sbvalue || !g_swig_get_valobj_sp_from_sbvalue)
+        return ret_val;
+    
+    {
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        void* child_ptr = g_swig_getvalue_provider (implementor);
+        if (child_ptr != nullptr && child_ptr != Py_None)
+        {
+            lldb::SBValue* sb_value_ptr = (lldb::SBValue*)g_swig_cast_to_sbvalue(child_ptr);
+            if (sb_value_ptr == nullptr)
+                Py_XDECREF(child_ptr);
+            else
+                ret_val = g_swig_get_valobj_sp_from_sbvalue (sb_value_ptr);
+        }
+        else
+        {
+            Py_XDECREF(child_ptr);
+        }
+    }
+    
+    return ret_val;
+}
+
+bool
+ScriptInterpreterPython::RunScriptFormatKeyword (const char* impl_function,
+                                                 Process* process,
+                                                 std::string& output,
+                                                 Error& error)
+{
+    bool ret_val;
+    if (!process)
+    {
+        error.SetErrorString("no process");
+        return false;
+    }
+    if (!impl_function || !impl_function[0])
+    {
+        error.SetErrorString("no function to execute");
+        return false;
+    }
+    if (!g_swig_run_script_keyword_process)
+    {
+        error.SetErrorString("internal helper function missing");
+        return false;
+    }
+    {
+        ProcessSP process_sp(process->shared_from_this());
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        ret_val = g_swig_run_script_keyword_process (impl_function, m_dictionary_name.c_str(), process_sp, output);
+        if (!ret_val)
+            error.SetErrorString("python script evaluation failed");
+    }
+    return ret_val;
+}
+
+bool
+ScriptInterpreterPython::RunScriptFormatKeyword (const char* impl_function,
+                                                 Thread* thread,
+                                                 std::string& output,
+                                                 Error& error)
+{
+    bool ret_val;
+    if (!thread)
+    {
+        error.SetErrorString("no thread");
+        return false;
+    }
+    if (!impl_function || !impl_function[0])
+    {
+        error.SetErrorString("no function to execute");
+        return false;
+    }
+    if (!g_swig_run_script_keyword_thread)
+    {
+        error.SetErrorString("internal helper function missing");
+        return false;
+    }
+    {
+        ThreadSP thread_sp(thread->shared_from_this());
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        ret_val = g_swig_run_script_keyword_thread (impl_function, m_dictionary_name.c_str(), thread_sp, output);
+        if (!ret_val)
+            error.SetErrorString("python script evaluation failed");
+    }
+    return ret_val;
+}
+
+bool
+ScriptInterpreterPython::RunScriptFormatKeyword (const char* impl_function,
+                                                 Target* target,
+                                                 std::string& output,
+                                                 Error& error)
+{
+    bool ret_val;
+    if (!target)
+    {
+        error.SetErrorString("no thread");
+        return false;
+    }
+    if (!impl_function || !impl_function[0])
+    {
+        error.SetErrorString("no function to execute");
+        return false;
+    }
+    if (!g_swig_run_script_keyword_target)
+    {
+        error.SetErrorString("internal helper function missing");
+        return false;
+    }
+    {
+        TargetSP target_sp(target->shared_from_this());
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        ret_val = g_swig_run_script_keyword_target (impl_function, m_dictionary_name.c_str(), target_sp, output);
+        if (!ret_val)
+            error.SetErrorString("python script evaluation failed");
+    }
+    return ret_val;
+}
+
+bool
+ScriptInterpreterPython::RunScriptFormatKeyword (const char* impl_function,
+                                                 StackFrame* frame,
+                                                 std::string& output,
+                                                 Error& error)
+{
+    bool ret_val;
+    if (!frame)
+    {
+        error.SetErrorString("no frame");
+        return false;
+    }
+    if (!impl_function || !impl_function[0])
+    {
+        error.SetErrorString("no function to execute");
+        return false;
+    }
+    if (!g_swig_run_script_keyword_frame)
+    {
+        error.SetErrorString("internal helper function missing");
+        return false;
+    }
+    {
+        StackFrameSP frame_sp(frame->shared_from_this());
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        ret_val = g_swig_run_script_keyword_frame (impl_function, m_dictionary_name.c_str(), frame_sp, output);
+        if (!ret_val)
+            error.SetErrorString("python script evaluation failed");
+    }
+    return ret_val;
+}
+    
+bool
+ScriptInterpreterPython::RunScriptFormatKeyword (const char* impl_function,
+                                                 ValueObject *value,
+                                                 std::string& output,
+                                                 Error& error)
+{
+    bool ret_val;
+    if (!value)
+    {
+        error.SetErrorString("no value");
+        return false;
+    }
+    if (!impl_function || !impl_function[0])
+    {
+        error.SetErrorString("no function to execute");
+        return false;
+    }
+    if (!g_swig_run_script_keyword_value)
+    {
+        error.SetErrorString("internal helper function missing");
+        return false;
+    }
+    {
+        ValueObjectSP value_sp(value->GetSP());
+        Locker py_lock(this, Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+        ret_val = g_swig_run_script_keyword_value (impl_function, m_dictionary_name.c_str(), value_sp, output);
+        if (!ret_val)
+            error.SetErrorString("python script evaluation failed");
+    }
+    return ret_val;
+}
+
+uint64_t replace_all(std::string& str, const std::string& oldStr, const std::string& newStr)
+{
+    size_t pos = 0;
+    uint64_t matches = 0;
+    while((pos = str.find(oldStr, pos)) != std::string::npos)
+    {
+        matches++;
+        str.replace(pos, oldStr.length(), newStr);
+        pos += newStr.length();
+    }
+    return matches;
+}
+
+bool
+ScriptInterpreterPython::LoadScriptingModule(const char *pathname, bool can_reload, bool init_session, lldb_private::Error &error,
+                                             StructuredData::ObjectSP *module_sp)
+{
+    if (!pathname || !pathname[0])
+    {
+        error.SetErrorString("invalid pathname");
+        return false;
+    }
+    
+    if (!g_swig_call_module_init)
+    {
+        error.SetErrorString("internal helper function missing");
+        return false;
+    }
+    
+    lldb::DebuggerSP debugger_sp = m_interpreter.GetDebugger().shared_from_this();
+
+    {
+        FileSpec target_file(pathname, true);
+        std::string basename(target_file.GetFilename().GetCString());
+        
+        StreamString command_stream;
+
+        // Before executing Pyton code, lock the GIL.
+        Locker py_lock (this,
+                        Locker::AcquireLock      | (init_session ? Locker::InitSession     : 0) | Locker::NoSTDIN,
+                        Locker::FreeAcquiredLock | (init_session ? Locker::TearDownSession : 0));
+        
+        if (target_file.GetFileType() == FileSpec::eFileTypeInvalid ||
+            target_file.GetFileType() == FileSpec::eFileTypeUnknown)
+        {
+            // if not a valid file of any sort, check if it might be a filename still
+            // dot can't be used but / and \ can, and if either is found, reject
+            if (strchr(pathname,'\\') || strchr(pathname,'/'))
+            {
+                error.SetErrorString("invalid pathname");
+                return false;
+            }
+            basename = pathname; // not a filename, probably a package of some sort, let it go through
+        }
+        else if (target_file.GetFileType() == FileSpec::eFileTypeDirectory ||
+                 target_file.GetFileType() == FileSpec::eFileTypeRegular ||
+                 target_file.GetFileType() == FileSpec::eFileTypeSymbolicLink)
+        {
+            std::string directory(target_file.GetDirectory().GetCString());
+            replace_all(directory,"'","\\'");
+            
+            // now make sure that Python has "directory" in the search path
+            StreamString command_stream;
+            command_stream.Printf("if not (sys.path.__contains__('%s')):\n    sys.path.insert(1,'%s');\n\n",
+                                  directory.c_str(),
+                                  directory.c_str());
+            bool syspath_retval = ExecuteMultipleLines(command_stream.GetData(), ScriptInterpreter::ExecuteScriptOptions().SetEnableIO(false).SetSetLLDBGlobals(false)).Success();
+            if (!syspath_retval)
+            {
+                error.SetErrorString("Python sys.path handling failed");
+                return false;
+            }
+            
+            // strip .py or .pyc extension
+            ConstString extension = target_file.GetFileNameExtension();
+            if (extension)
+            {
+                if (::strcmp(extension.GetCString(), "py") == 0)
+                    basename.resize(basename.length()-3);
+                else if(::strcmp(extension.GetCString(), "pyc") == 0)
+                    basename.resize(basename.length()-4);
+            }
+        }
+        else
+        {
+            error.SetErrorString("no known way to import this module specification");
+            return false;
+        }
+        
+        // check if the module is already import-ed
+        command_stream.Clear();
+        command_stream.Printf("sys.modules.__contains__('%s')",basename.c_str());
+        bool does_contain = false;
+        // this call will succeed if the module was ever imported in any Debugger in the lifetime of the process
+        // in which this LLDB framework is living
+        bool was_imported_globally = (ExecuteOneLineWithReturn(command_stream.GetData(),
+                                                               ScriptInterpreterPython::eScriptReturnTypeBool,
+                                                               &does_contain,
+                                                               ScriptInterpreter::ExecuteScriptOptions().SetEnableIO(false).SetSetLLDBGlobals(false)) && does_contain);
+        // this call will fail if the module was not imported in this Debugger before
+        command_stream.Clear();
+        command_stream.Printf("sys.getrefcount(%s)",basename.c_str());
+        bool was_imported_locally = GetSessionDictionary().GetItemForKey(PythonString(basename)).IsAllocated();
+        
+        bool was_imported = (was_imported_globally || was_imported_locally);
+        
+        if (was_imported == true && can_reload == false)
+        {
+            error.SetErrorString("module already imported");
+            return false;
+        }
+
+        // now actually do the import
+        command_stream.Clear();
+        
+        if (was_imported)
+        {
+            if (!was_imported_locally)
+                command_stream.Printf("import %s ; reload_module(%s)",basename.c_str(),basename.c_str());
+            else
+                command_stream.Printf("reload_module(%s)",basename.c_str());
+        }
+        else
+            command_stream.Printf("import %s",basename.c_str());
+        
+        error = ExecuteMultipleLines(command_stream.GetData(), ScriptInterpreter::ExecuteScriptOptions().SetEnableIO(false).SetSetLLDBGlobals(false));
+        if (error.Fail())
+            return false;
+        
+        // if we are here, everything worked
+        // call __lldb_init_module(debugger,dict)
+        if (!g_swig_call_module_init (basename.c_str(),
+                                      m_dictionary_name.c_str(),
+                                      debugger_sp))
+        {
+            error.SetErrorString("calling __lldb_init_module failed");
+            return false;
+        }
+        
+        if (module_sp)
+        {
+            // everything went just great, now set the module object
+            command_stream.Clear();
+            command_stream.Printf("%s",basename.c_str());
+            void* module_pyobj = nullptr;
+            if (ExecuteOneLineWithReturn(command_stream.GetData(),ScriptInterpreter::eScriptReturnTypeOpaqueObject,&module_pyobj) && module_pyobj)
+                module_sp->reset(new StructuredPythonObject(module_pyobj));
+        }
+        
+        return true;
+    }
+}
+
+bool
+ScriptInterpreterPython::IsReservedWord (const char* word)
+{
+    if (!word || !word[0])
+        return false;
+    
+    llvm::StringRef word_sr(word);
+
+    // filter out a few characters that would just confuse us
+    // and that are clearly not keyword material anyway
+    if (word_sr.find_first_of("'\"") != llvm::StringRef::npos)
+        return false;
+    
+    StreamString command_stream;
+    command_stream.Printf("keyword.iskeyword('%s')", word);
+    bool result;
+    ExecuteScriptOptions options;
+    options.SetEnableIO(false);
+    options.SetMaskoutErrors(true);
+    options.SetSetLLDBGlobals(false);
+    if (ExecuteOneLineWithReturn(command_stream.GetData(), ScriptInterpreter::eScriptReturnTypeBool, &result, options))
+        return result;
+    return false;
+}
+
+ScriptInterpreterPython::SynchronicityHandler::SynchronicityHandler (lldb::DebuggerSP debugger_sp,
+                                                                     ScriptedCommandSynchronicity synchro) :
+    m_debugger_sp(debugger_sp),
+    m_synch_wanted(synchro),
+    m_old_asynch(debugger_sp->GetAsyncExecution())
+{
+    if (m_synch_wanted == eScriptedCommandSynchronicitySynchronous)
+        m_debugger_sp->SetAsyncExecution(false);
+    else if (m_synch_wanted == eScriptedCommandSynchronicityAsynchronous)
+        m_debugger_sp->SetAsyncExecution(true);
+}
+
+ScriptInterpreterPython::SynchronicityHandler::~SynchronicityHandler()
+{
+    if (m_synch_wanted != eScriptedCommandSynchronicityCurrentValue)
+        m_debugger_sp->SetAsyncExecution(m_old_asynch);
+}
+
+bool
+ScriptInterpreterPython::RunScriptBasedCommand(const char* impl_function,
+                                               const char* args,
+                                               ScriptedCommandSynchronicity synchronicity,
+                                               lldb_private::CommandReturnObject& cmd_retobj,
+                                               Error& error,
+                                               const lldb_private::ExecutionContext& exe_ctx)
+{
+    if (!impl_function)
+    {
+        error.SetErrorString("no function to execute");
+        return false;
+    }
+    
+    if (!g_swig_call_command)
+    {
+        error.SetErrorString("no helper function to run scripted commands");
+        return false;
+    }
+    
+    lldb::DebuggerSP debugger_sp = m_interpreter.GetDebugger().shared_from_this();
+    lldb::ExecutionContextRefSP exe_ctx_ref_sp(new ExecutionContextRef(exe_ctx));
+    
+    if (!debugger_sp.get())
+    {
+        error.SetErrorString("invalid Debugger pointer");
+        return false;
+   }
+    
+    bool ret_val = false;
+    
+    std::string err_msg;
+
+    {
+        Locker py_lock(this,
+                       Locker::AcquireLock | Locker::InitSession | (cmd_retobj.GetInteractive() ? 0 : Locker::NoSTDIN),
+                       Locker::FreeLock    | Locker::TearDownSession);
+        
+        SynchronicityHandler synch_handler(debugger_sp,
+                                           synchronicity);
+        
+        ret_val = g_swig_call_command       (impl_function,
+                                             m_dictionary_name.c_str(),
+                                             debugger_sp,
+                                             args,
+                                             cmd_retobj,
+                                             exe_ctx_ref_sp);
+    }
+    
+    if (!ret_val)
+        error.SetErrorString("unable to execute script function");
+    else
+        error.Clear();
+    
+    return ret_val;
+}
+
+bool
+ScriptInterpreterPython::RunScriptBasedCommand (StructuredData::GenericSP impl_obj_sp,
+                                                const char* args,
+                                                ScriptedCommandSynchronicity synchronicity,
+                                                lldb_private::CommandReturnObject& cmd_retobj,
+                                                Error& error,
+                                                const lldb_private::ExecutionContext& exe_ctx)
+{
+    if (!impl_obj_sp || !impl_obj_sp->IsValid())
+    {
+        error.SetErrorString("no function to execute");
+        return false;
+    }
+    
+    if (!g_swig_call_command_object)
+    {
+        error.SetErrorString("no helper function to run scripted commands");
+        return false;
+    }
+    
+    lldb::DebuggerSP debugger_sp = m_interpreter.GetDebugger().shared_from_this();
+    lldb::ExecutionContextRefSP exe_ctx_ref_sp(new ExecutionContextRef(exe_ctx));
+    
+    if (!debugger_sp.get())
+    {
+        error.SetErrorString("invalid Debugger pointer");
+        return false;
+    }
+    
+    bool ret_val = false;
+    
+    std::string err_msg;
+    
+    {
+        Locker py_lock(this,
+                       Locker::AcquireLock | Locker::InitSession | (cmd_retobj.GetInteractive() ? 0 : Locker::NoSTDIN),
+                       Locker::FreeLock    | Locker::TearDownSession);
+        
+        SynchronicityHandler synch_handler(debugger_sp,
+                                           synchronicity);
+        
+        ret_val = g_swig_call_command_object      (impl_obj_sp->GetValue(),
+                                                   debugger_sp,
+                                                   args,
+                                                   cmd_retobj,
+                                                   exe_ctx_ref_sp);
+    }
+    
+    if (!ret_val)
+        error.SetErrorString("unable to execute script function");
+    else
+        error.Clear();
+
+    return ret_val;
+}
+
+// in Python, a special attribute __doc__ contains the docstring
+// for an object (function, method, class, ...) if any is defined
+// Otherwise, the attribute's value is None
+bool
+ScriptInterpreterPython::GetDocumentationForItem(const char* item, std::string& dest)
+{
+	dest.clear();
+	if (!item || !*item)
+		return false;
+    std::string command(item);
+    command += ".__doc__";
+    
+    char* result_ptr = nullptr; // Python is going to point this to valid data if ExecuteOneLineWithReturn returns successfully
+    
+    if (ExecuteOneLineWithReturn (command.c_str(),
+                                  ScriptInterpreter::eScriptReturnTypeCharStrOrNone,
+                                  &result_ptr,
+                                  ScriptInterpreter::ExecuteScriptOptions().SetEnableIO(false)))
+    {
+        if (result_ptr)
+            dest.assign(result_ptr);
+        return true;
+    }
+    else
+    {
+        StreamString str_stream;
+        str_stream.Printf("Function %s was not found. Containing module might be missing.",item);
+        dest.assign(str_stream.GetData());
+        return false;
+    }
+}
+
+bool
+ScriptInterpreterPython::GetShortHelpForCommandObject (StructuredData::GenericSP cmd_obj_sp,
+                                                       std::string& dest)
+{
+    bool got_string = false;
+    dest.clear();
+    
+    Locker py_lock (this,
+                    Locker::AcquireLock | Locker::NoSTDIN,
+                    Locker::FreeLock);
+    
+    static char callee_name[] = "get_short_help";
+    
+    if (!cmd_obj_sp)
+        return false;
+
+    PythonObject implementor(PyRefType::Borrowed, (PyObject *)cmd_obj_sp->GetValue());
+
+    if (!implementor.IsAllocated())
+        return false;
+
+    PythonObject pmeth(PyRefType::Owned, PyObject_GetAttrString(implementor.get(), callee_name));
+
+    if (PyErr_Occurred())
+        PyErr_Clear();
+
+    if (!pmeth.IsAllocated())
+        return false;
+    
+    if (PyCallable_Check(pmeth.get()) == 0)
+    {
+        if (PyErr_Occurred())
+            PyErr_Clear();
+        return false;
+    }
+    
+    if (PyErr_Occurred())
+        PyErr_Clear();
+    
+    // right now we know this function exists and is callable..
+    PythonObject py_return(PyRefType::Owned, PyObject_CallMethod(implementor.get(), callee_name, nullptr));
+
+    // if it fails, print the error but otherwise go on
+    if (PyErr_Occurred())
+    {
+        PyErr_Print();
+        PyErr_Clear();
+    }
+
+    if (py_return.IsAllocated() && PythonString::Check(py_return.get()))
+    {
+        PythonString py_string(PyRefType::Borrowed, py_return.get());
+        llvm::StringRef return_data(py_string.GetString());
+        dest.assign(return_data.data(), return_data.size());
+        got_string = true;
+    }
+    return got_string;
+}
+
+uint32_t
+ScriptInterpreterPython::GetFlagsForCommandObject (StructuredData::GenericSP cmd_obj_sp)
+{
+    uint32_t result = 0;
+    
+    Locker py_lock (this,
+                    Locker::AcquireLock | Locker::NoSTDIN,
+                    Locker::FreeLock);
+    
+    static char callee_name[] = "get_flags";
+    
+    if (!cmd_obj_sp)
+        return result;
+
+    PythonObject implementor(PyRefType::Borrowed, (PyObject *)cmd_obj_sp->GetValue());
+
+    if (!implementor.IsAllocated())
+        return result;
+
+    PythonObject pmeth(PyRefType::Owned, PyObject_GetAttrString(implementor.get(), callee_name));
+
+    if (PyErr_Occurred())
+        PyErr_Clear();
+
+    if (!pmeth.IsAllocated())
+        return result;
+    
+    if (PyCallable_Check(pmeth.get()) == 0)
+    {
+        if (PyErr_Occurred())
+            PyErr_Clear();
+        return result;
+    }
+    
+    if (PyErr_Occurred())
+        PyErr_Clear();
+    
+    // right now we know this function exists and is callable..
+    PythonObject py_return(PyRefType::Owned, PyObject_CallMethod(implementor.get(), callee_name, nullptr));
+
+    // if it fails, print the error but otherwise go on
+    if (PyErr_Occurred())
+    {
+        PyErr_Print();
+        PyErr_Clear();
+    }
+
+    if (py_return.IsAllocated() && PythonInteger::Check(py_return.get()))
+    {
+        PythonInteger int_value(PyRefType::Borrowed, py_return.get());
+        result = int_value.GetInteger();
+    }
+    
+    return result;
+}
+
+bool
+ScriptInterpreterPython::GetLongHelpForCommandObject (StructuredData::GenericSP cmd_obj_sp,
+                                                      std::string& dest)
+{
+    bool got_string = false;
+    dest.clear();
+    
+    Locker py_lock (this,
+                    Locker::AcquireLock | Locker::NoSTDIN,
+                    Locker::FreeLock);
+    
+    static char callee_name[] = "get_long_help";
+    
+    if (!cmd_obj_sp)
+        return false;
+
+    PythonObject implementor(PyRefType::Borrowed, (PyObject *)cmd_obj_sp->GetValue());
+
+    if (!implementor.IsAllocated())
+        return false;
+
+    PythonObject pmeth(PyRefType::Owned, PyObject_GetAttrString(implementor.get(), callee_name));
+
+    if (PyErr_Occurred())
+        PyErr_Clear();
+
+    if (!pmeth.IsAllocated())
+        return false;
+    
+    if (PyCallable_Check(pmeth.get()) == 0)
+    {
+        if (PyErr_Occurred())
+            PyErr_Clear();
+        
+        return false;
+    }
+    
+    if (PyErr_Occurred())
+        PyErr_Clear();
+    
+    // right now we know this function exists and is callable..
+    PythonObject py_return(PyRefType::Owned, PyObject_CallMethod(implementor.get(), callee_name, nullptr));
+
+    // if it fails, print the error but otherwise go on
+    if (PyErr_Occurred())
+    {
+        PyErr_Print();
+        PyErr_Clear();
+    }
+
+    if (py_return.IsAllocated() && PythonString::Check(py_return.get()))
+    {
+        PythonString str(PyRefType::Borrowed, py_return.get());
+        llvm::StringRef str_data(str.GetString());
+        dest.assign(str_data.data(), str_data.size());
+        got_string = true;
+    }
+    
+    return got_string;
+}
+
+std::unique_ptr<ScriptInterpreterLocker>
+ScriptInterpreterPython::AcquireInterpreterLock ()
+{
+    std::unique_ptr<ScriptInterpreterLocker> py_lock(new Locker(this,
+                                                                Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN,
+                                                                Locker::FreeLock | Locker::TearDownSession));
+    return py_lock;
+}
+
+void
+ScriptInterpreterPython::InitializeInterpreter (SWIGInitCallback swig_init_callback,
+                                                SWIGBreakpointCallbackFunction swig_breakpoint_callback,
+                                                SWIGWatchpointCallbackFunction swig_watchpoint_callback,
+                                                SWIGPythonTypeScriptCallbackFunction swig_typescript_callback,
+                                                SWIGPythonCreateSyntheticProvider swig_synthetic_script,
+                                                SWIGPythonCreateCommandObject swig_create_cmd,
+                                                SWIGPythonCalculateNumChildren swig_calc_children,
+                                                SWIGPythonGetChildAtIndex swig_get_child_index,
+                                                SWIGPythonGetIndexOfChildWithName swig_get_index_child,
+                                                SWIGPythonCastPyObjectToSBValue swig_cast_to_sbvalue ,
+                                                SWIGPythonGetValueObjectSPFromSBValue swig_get_valobj_sp_from_sbvalue,
+                                                SWIGPythonUpdateSynthProviderInstance swig_update_provider,
+                                                SWIGPythonMightHaveChildrenSynthProviderInstance swig_mighthavechildren_provider,
+                                                SWIGPythonGetValueSynthProviderInstance swig_getvalue_provider,
+                                                SWIGPythonCallCommand swig_call_command,
+                                                SWIGPythonCallCommandObject swig_call_command_object,
+                                                SWIGPythonCallModuleInit swig_call_module_init,
+                                                SWIGPythonCreateOSPlugin swig_create_os_plugin,
+                                                SWIGPythonScriptKeyword_Process swig_run_script_keyword_process,
+                                                SWIGPythonScriptKeyword_Thread swig_run_script_keyword_thread,
+                                                SWIGPythonScriptKeyword_Target swig_run_script_keyword_target,
+                                                SWIGPythonScriptKeyword_Frame swig_run_script_keyword_frame,
+                                                SWIGPythonScriptKeyword_Value swig_run_script_keyword_value,
+                                                SWIGPython_GetDynamicSetting swig_plugin_get,
+                                                SWIGPythonCreateScriptedThreadPlan swig_thread_plan_script,
+                                                SWIGPythonCallThreadPlan swig_call_thread_plan)
+{
+    g_swig_init_callback = swig_init_callback;
+    g_swig_breakpoint_callback = swig_breakpoint_callback;
+    g_swig_watchpoint_callback = swig_watchpoint_callback;
+    g_swig_typescript_callback = swig_typescript_callback;
+    g_swig_synthetic_script = swig_synthetic_script;
+    g_swig_create_cmd = swig_create_cmd;
+    g_swig_calc_children = swig_calc_children;
+    g_swig_get_child_index = swig_get_child_index;
+    g_swig_get_index_child = swig_get_index_child;
+    g_swig_cast_to_sbvalue = swig_cast_to_sbvalue;
+    g_swig_get_valobj_sp_from_sbvalue = swig_get_valobj_sp_from_sbvalue;
+    g_swig_update_provider = swig_update_provider;
+    g_swig_mighthavechildren_provider = swig_mighthavechildren_provider;
+    g_swig_getvalue_provider = swig_getvalue_provider;
+    g_swig_call_command = swig_call_command;
+    g_swig_call_command_object = swig_call_command_object;
+    g_swig_call_module_init = swig_call_module_init;
+    g_swig_create_os_plugin = swig_create_os_plugin;
+    g_swig_run_script_keyword_process = swig_run_script_keyword_process;
+    g_swig_run_script_keyword_thread = swig_run_script_keyword_thread;
+    g_swig_run_script_keyword_target = swig_run_script_keyword_target;
+    g_swig_run_script_keyword_frame = swig_run_script_keyword_frame;
+    g_swig_run_script_keyword_value = swig_run_script_keyword_value;
+    g_swig_plugin_get = swig_plugin_get;
+    g_swig_thread_plan_script = swig_thread_plan_script;
+    g_swig_call_thread_plan = swig_call_thread_plan;
+}
+
+void
+ScriptInterpreterPython::InitializePrivate ()
+{
+    assert(!g_initialized && "ScriptInterpreterPython::InitializePrivate() called more than once!");
+    g_initialized = true;
+
+    Timer scoped_timer (__PRETTY_FUNCTION__, __PRETTY_FUNCTION__);
+
+    // RAII-based initialization which correctly handles multiple-initialization, version-
+    // specific differences among Python 2 and Python 3, and saving and restoring various
+    // other pieces of state that can get mucked with during initialization.
+    InitializePythonRAII initialize_guard;
+
+    if (g_swig_init_callback)
+        g_swig_init_callback ();
+
+    // Update the path python uses to search for modules to include the current directory.
+
+    PyRun_SimpleString ("import sys");
+    AddToSysPath(AddLocation::End, ".");
+
+    FileSpec file_spec;
+    // Don't denormalize paths when calling file_spec.GetPath().  On platforms that use
+    // a backslash as the path separator, this will result in executing python code containing
+    // paths with unescaped backslashes.  But Python also accepts forward slashes, so to make
+    // life easier we just use that.
+    if (HostInfo::GetLLDBPath(ePathTypePythonDir, file_spec))
+        AddToSysPath(AddLocation::Beginning, file_spec.GetPath(false));
+    if (HostInfo::GetLLDBPath(ePathTypeLLDBShlibDir, file_spec))
+        AddToSysPath(AddLocation::Beginning, file_spec.GetPath(false));
+
+    PyRun_SimpleString ("sys.dont_write_bytecode = 1; import lldb.embedded_interpreter; from lldb.embedded_interpreter import run_python_interpreter; from lldb.embedded_interpreter import run_one_line");
+}
+
+void
+ScriptInterpreterPython::AddToSysPath(AddLocation location, std::string path)
+{
+    std::string path_copy;
+
+    std::string statement;
+    if (location == AddLocation::Beginning)
+    {
+        statement.assign("sys.path.insert(0,\"");
+        statement.append (path);
+        statement.append ("\")");
+    }
+    else
+    {
+        statement.assign("sys.path.append(\"");
+        statement.append(path);
+        statement.append("\")");
+    }
+    PyRun_SimpleString (statement.c_str());
+}
+
+
+//void
+//ScriptInterpreterPython::Terminate ()
+//{
+//    // We are intentionally NOT calling Py_Finalize here (this would be the logical place to call it).  Calling
+//    // Py_Finalize here causes test suite runs to seg fault:  The test suite runs in Python.  It registers 
+//    // SBDebugger::Terminate to be called 'at_exit'.  When the test suite Python harness finishes up, it calls 
+//    // Py_Finalize, which calls all the 'at_exit' registered functions.  SBDebugger::Terminate calls Debugger::Terminate,
+//    // which calls lldb::Terminate, which calls ScriptInterpreter::Terminate, which calls 
+//    // ScriptInterpreterPython::Terminate.  So if we call Py_Finalize here, we end up with Py_Finalize being called from
+//    // within Py_Finalize, which results in a seg fault.
+//    //
+//    // Since this function only gets called when lldb is shutting down and going away anyway, the fact that we don't
+//    // actually call Py_Finalize should not cause any problems (everything should shut down/go away anyway when the
+//    // process exits).
+//    //
+////    Py_Finalize ();
+//}
+
+#endif // #ifdef LLDB_DISABLE_PYTHON
diff --git a/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h b/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h
new file mode 100644
index 0000000000000..4c6eb39498986
--- /dev/null
+++ b/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h
@@ -0,0 +1,607 @@
+//===-- ScriptInterpreterPython.h -------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_SCRIPTINTERPRETERPYTHON_H
+#define LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_SCRIPTINTERPRETERPYTHON_H
+
+#ifdef LLDB_DISABLE_PYTHON
+
+// Python is disabled in this build
+
+#else
+
+// C Includes
+// C++ Includes
+#include <memory>
+#include <string>
+#include <vector>
+
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-private.h"
+#include "PythonDataObjects.h"
+#include "lldb/Core/IOHandler.h"
+#include "lldb/Interpreter/ScriptInterpreter.h"
+#include "lldb/Host/Terminal.h"
+
+class IOHandlerPythonInterpreter;
+
+namespace lldb_private {
+    
+class ScriptInterpreterPython :
+    public ScriptInterpreter,
+    public IOHandlerDelegateMultiline
+{
+public:
+#if PY_MAJOR_VERSION >= 3
+    typedef PyObject*(*SWIGInitCallback) (void);
+#else
+    typedef void(*SWIGInitCallback) (void);
+#endif
+
+    typedef bool (*SWIGBreakpointCallbackFunction) (const char *python_function_name,
+                                                    const char *session_dictionary_name,
+                                                    const lldb::StackFrameSP& frame_sp,
+                                                    const lldb::BreakpointLocationSP &bp_loc_sp);
+    
+    typedef bool (*SWIGWatchpointCallbackFunction) (const char *python_function_name,
+                                                    const char *session_dictionary_name,
+                                                    const lldb::StackFrameSP& frame_sp,
+                                                    const lldb::WatchpointSP &wp_sp);
+    
+    typedef bool (*SWIGPythonTypeScriptCallbackFunction) (const char *python_function_name,
+                                                          void *session_dictionary,
+                                                          const lldb::ValueObjectSP& valobj_sp,
+                                                          void** pyfunct_wrapper,
+                                                          const lldb::TypeSummaryOptionsSP& options,
+                                                          std::string& retval);
+    
+    typedef void* (*SWIGPythonCreateSyntheticProvider) (const char *python_class_name,
+                                                        const char *session_dictionary_name,
+                                                        const lldb::ValueObjectSP& valobj_sp);
+
+    typedef void* (*SWIGPythonCreateCommandObject) (const char *python_class_name,
+                                                    const char *session_dictionary_name,
+                                                    const lldb::DebuggerSP debugger_sp);
+    
+    typedef void* (*SWIGPythonCreateScriptedThreadPlan) (const char *python_class_name,
+                                                        const char *session_dictionary_name,
+                                                        const lldb::ThreadPlanSP& thread_plan_sp);
+
+    typedef bool (*SWIGPythonCallThreadPlan) (void *implementor, const char *method_name, Event *event_sp, bool &got_error);
+
+    typedef void* (*SWIGPythonCreateOSPlugin) (const char *python_class_name,
+                                               const char *session_dictionary_name,
+                                               const lldb::ProcessSP& process_sp);
+    
+    typedef size_t          (*SWIGPythonCalculateNumChildren)                   (void *implementor, uint32_t max);
+
+    typedef void*           (*SWIGPythonGetChildAtIndex)                        (void *implementor, uint32_t idx);
+
+    typedef int             (*SWIGPythonGetIndexOfChildWithName)                (void *implementor, const char* child_name);
+
+    typedef void*           (*SWIGPythonCastPyObjectToSBValue)                  (void* data);
+
+    typedef lldb::ValueObjectSP  (*SWIGPythonGetValueObjectSPFromSBValue)       (void* data);
+
+    typedef bool            (*SWIGPythonUpdateSynthProviderInstance)            (void* data);
+
+    typedef bool            (*SWIGPythonMightHaveChildrenSynthProviderInstance) (void* data);
+
+    typedef void*           (*SWIGPythonGetValueSynthProviderInstance)          (void *implementor);
+    
+    typedef bool            (*SWIGPythonCallCommand)            (const char *python_function_name,
+                                                                 const char *session_dictionary_name,
+                                                                 lldb::DebuggerSP& debugger,
+                                                                 const char* args,
+                                                                 lldb_private::CommandReturnObject& cmd_retobj,
+                                                                 lldb::ExecutionContextRefSP exe_ctx_ref_sp);
+
+    typedef bool            (*SWIGPythonCallCommandObject)        (void *implementor,
+                                                                   lldb::DebuggerSP& debugger,
+                                                                   const char* args,
+                                                                   lldb_private::CommandReturnObject& cmd_retobj,
+                                                                   lldb::ExecutionContextRefSP exe_ctx_ref_sp);
+
+    typedef bool            (*SWIGPythonCallModuleInit)         (const char *python_module_name,
+                                                                 const char *session_dictionary_name,
+                                                                 lldb::DebuggerSP& debugger);
+    
+    typedef bool            (*SWIGPythonScriptKeyword_Process)  (const char* python_function_name,
+                                                                 const char* session_dictionary_name,
+                                                                 lldb::ProcessSP& process,
+                                                                 std::string& output);
+
+    typedef bool            (*SWIGPythonScriptKeyword_Thread)   (const char* python_function_name,
+                                                                 const char* session_dictionary_name,
+                                                                 lldb::ThreadSP& thread,
+                                                                 std::string& output);
+    
+    typedef bool            (*SWIGPythonScriptKeyword_Target)   (const char* python_function_name,
+                                                                 const char* session_dictionary_name,
+                                                                 lldb::TargetSP& target,
+                                                                 std::string& output);
+
+    typedef bool            (*SWIGPythonScriptKeyword_Frame)    (const char* python_function_name,
+                                                                 const char* session_dictionary_name,
+                                                                 lldb::StackFrameSP& frame,
+                                                                 std::string& output);
+
+    typedef bool            (*SWIGPythonScriptKeyword_Value)    (const char* python_function_name,
+                                                                 const char* session_dictionary_name,
+                                                                 lldb::ValueObjectSP& value,
+                                                                 std::string& output);
+    
+    typedef void*           (*SWIGPython_GetDynamicSetting)     (void* module,
+                                                                 const char* setting,
+                                                                 const lldb::TargetSP& target_sp);
+
+    friend class ::IOHandlerPythonInterpreter;
+
+    ScriptInterpreterPython (CommandInterpreter &interpreter);
+
+    ~ScriptInterpreterPython() override;
+
+    bool
+    Interrupt() override;
+
+    bool
+    ExecuteOneLine (const char *command,
+                    CommandReturnObject *result,
+                    const ExecuteScriptOptions &options = ExecuteScriptOptions()) override;
+
+    void
+    ExecuteInterpreterLoop () override;
+
+    bool
+    ExecuteOneLineWithReturn (const char *in_string, 
+                              ScriptInterpreter::ScriptReturnType return_type,
+                              void *ret_value,
+                              const ExecuteScriptOptions &options = ExecuteScriptOptions()) override;
+
+    lldb_private::Error
+    ExecuteMultipleLines (const char *in_string,
+                          const ExecuteScriptOptions &options = ExecuteScriptOptions()) override;
+
+    Error
+    ExportFunctionDefinitionToInterpreter (StringList &function_def) override;
+
+    bool
+    GenerateTypeScriptFunction(StringList &input, std::string& output, const void* name_token = nullptr) override;
+    
+    bool
+    GenerateTypeSynthClass(StringList &input, std::string& output, const void* name_token = nullptr) override;
+    
+    bool
+    GenerateTypeSynthClass(const char* oneliner, std::string& output, const void* name_token = nullptr) override;
+    
+    // use this if the function code is just a one-liner script
+    bool
+    GenerateTypeScriptFunction(const char* oneliner, std::string& output, const void* name_token = nullptr) override;
+    
+    bool
+    GenerateScriptAliasFunction (StringList &input, std::string& output) override;
+
+    StructuredData::ObjectSP CreateSyntheticScriptedProvider(const char *class_name, lldb::ValueObjectSP valobj) override;
+
+    StructuredData::GenericSP CreateScriptCommandObject (const char *class_name) override;
+
+    StructuredData::ObjectSP CreateScriptedThreadPlan(const char *class_name, lldb::ThreadPlanSP thread_plan) override;
+
+    bool ScriptedThreadPlanExplainsStop(StructuredData::ObjectSP implementor_sp, Event *event, bool &script_error) override;
+
+    bool ScriptedThreadPlanShouldStop(StructuredData::ObjectSP implementor_sp, Event *event, bool &script_error) override;
+
+    lldb::StateType ScriptedThreadPlanGetRunState(StructuredData::ObjectSP implementor_sp, bool &script_error) override;
+
+    StructuredData::GenericSP OSPlugin_CreatePluginObject(const char *class_name, lldb::ProcessSP process_sp) override;
+
+    StructuredData::DictionarySP OSPlugin_RegisterInfo(StructuredData::ObjectSP os_plugin_object_sp) override;
+
+    StructuredData::ArraySP OSPlugin_ThreadsInfo(StructuredData::ObjectSP os_plugin_object_sp) override;
+
+    StructuredData::StringSP OSPlugin_RegisterContextData(StructuredData::ObjectSP os_plugin_object_sp, lldb::tid_t thread_id) override;
+
+    StructuredData::DictionarySP OSPlugin_CreateThread(StructuredData::ObjectSP os_plugin_object_sp, lldb::tid_t tid,
+                                                       lldb::addr_t context) override;
+
+    StructuredData::ObjectSP LoadPluginModule(const FileSpec &file_spec, lldb_private::Error &error) override;
+
+    StructuredData::DictionarySP GetDynamicSettings(StructuredData::ObjectSP plugin_module_sp, Target *target, const char *setting_name,
+                                                    lldb_private::Error &error) override;
+
+    size_t CalculateNumChildren(const StructuredData::ObjectSP &implementor, uint32_t max) override;
+
+    lldb::ValueObjectSP GetChildAtIndex(const StructuredData::ObjectSP &implementor, uint32_t idx) override;
+
+    int GetIndexOfChildWithName(const StructuredData::ObjectSP &implementor, const char *child_name) override;
+
+    bool UpdateSynthProviderInstance(const StructuredData::ObjectSP &implementor) override;
+
+    bool MightHaveChildrenSynthProviderInstance(const StructuredData::ObjectSP &implementor) override;
+
+    lldb::ValueObjectSP GetSyntheticValue(const StructuredData::ObjectSP &implementor) override;
+
+    bool
+    RunScriptBasedCommand(const char* impl_function,
+                          const char* args,
+                          ScriptedCommandSynchronicity synchronicity,
+                          lldb_private::CommandReturnObject& cmd_retobj,
+                          Error& error,
+                          const lldb_private::ExecutionContext& exe_ctx) override;
+    
+    bool
+    RunScriptBasedCommand (StructuredData::GenericSP impl_obj_sp,
+                           const char* args,
+                           ScriptedCommandSynchronicity synchronicity,
+                           lldb_private::CommandReturnObject& cmd_retobj,
+                           Error& error,
+                           const lldb_private::ExecutionContext& exe_ctx) override;
+    
+    Error
+    GenerateFunction(const char *signature, const StringList &input) override;
+    
+    Error
+    GenerateBreakpointCommandCallbackData (StringList &input, std::string& output) override;
+
+    bool
+    GenerateWatchpointCommandCallbackData (StringList &input, std::string& output) override;
+
+//    static size_t
+//    GenerateBreakpointOptionsCommandCallback (void *baton, 
+//                                              InputReader &reader, 
+//                                              lldb::InputReaderAction notification,
+//                                              const char *bytes, 
+//                                              size_t bytes_len);
+//    
+//    static size_t
+//    GenerateWatchpointOptionsCommandCallback (void *baton, 
+//                                              InputReader &reader, 
+//                                              lldb::InputReaderAction notification,
+//                                              const char *bytes, 
+//                                              size_t bytes_len);
+    
+    static bool
+    BreakpointCallbackFunction (void *baton, 
+                                StoppointCallbackContext *context, 
+                                lldb::user_id_t break_id,
+                                lldb::user_id_t break_loc_id);
+    
+    static bool
+    WatchpointCallbackFunction (void *baton, 
+                                StoppointCallbackContext *context, 
+                                lldb::user_id_t watch_id);
+
+    bool GetScriptedSummary(const char *function_name, lldb::ValueObjectSP valobj, StructuredData::ObjectSP &callee_wrapper_sp,
+                            const TypeSummaryOptions &options, std::string &retval) override;
+
+    void
+    Clear () override;
+
+    bool
+    GetDocumentationForItem (const char* item, std::string& dest) override;
+    
+    bool
+    GetShortHelpForCommandObject(StructuredData::GenericSP cmd_obj_sp, std::string& dest) override;
+    
+    uint32_t
+    GetFlagsForCommandObject (StructuredData::GenericSP cmd_obj_sp) override;
+    
+    bool
+    GetLongHelpForCommandObject(StructuredData::GenericSP cmd_obj_sp, std::string& dest) override;
+    
+    bool
+    CheckObjectExists (const char* name) override
+    {
+        if (!name || !name[0])
+            return false;
+        std::string temp;
+        return GetDocumentationForItem (name,temp);
+    }
+    
+    bool
+    RunScriptFormatKeyword (const char* impl_function,
+                            Process* process,
+                            std::string& output,
+                            Error& error) override;
+
+    bool
+    RunScriptFormatKeyword (const char* impl_function,
+                            Thread* thread,
+                            std::string& output,
+                            Error& error) override;
+    
+    bool
+    RunScriptFormatKeyword (const char* impl_function,
+                            Target* target,
+                            std::string& output,
+                            Error& error) override;
+    
+    bool
+    RunScriptFormatKeyword (const char* impl_function,
+                            StackFrame* frame,
+                            std::string& output,
+                            Error& error) override;
+    
+    bool
+    RunScriptFormatKeyword (const char* impl_function,
+                            ValueObject* value,
+                            std::string& output,
+                            Error& error) override;
+
+    bool LoadScriptingModule(const char *filename, bool can_reload, bool init_session, lldb_private::Error &error,
+                             StructuredData::ObjectSP *module_sp = nullptr) override;
+
+    bool
+    IsReservedWord (const char* word) override;
+
+    std::unique_ptr<ScriptInterpreterLocker>
+    AcquireInterpreterLock () override;
+    
+    void
+    CollectDataForBreakpointCommandCallback (std::vector<BreakpointOptions *> &bp_options_vec,
+                                             CommandReturnObject &result) override;
+
+    void 
+    CollectDataForWatchpointCommandCallback (WatchpointOptions *wp_options,
+                                             CommandReturnObject &result) override;
+
+    /// Set the callback body text into the callback for the breakpoint.
+    Error
+    SetBreakpointCommandCallback (BreakpointOptions *bp_options,
+                                  const char *callback_body) override;
+
+    void 
+    SetBreakpointCommandCallbackFunction (BreakpointOptions *bp_options,
+                                          const char *function_name) override;
+
+    /// Set a one-liner as the callback for the watchpoint.
+    void 
+    SetWatchpointCommandCallback (WatchpointOptions *wp_options,
+                                  const char *oneliner) override;
+
+    StringList
+    ReadCommandInputFromUser (FILE *in_file);
+
+    void ResetOutputFileHandle(FILE *new_fh) override;
+
+    static void
+    InitializePrivate ();
+
+    static void
+    InitializeInterpreter (SWIGInitCallback python_swig_init_callback,
+                           SWIGBreakpointCallbackFunction swig_breakpoint_callback,
+                           SWIGWatchpointCallbackFunction swig_watchpoint_callback,
+                           SWIGPythonTypeScriptCallbackFunction swig_typescript_callback,
+                           SWIGPythonCreateSyntheticProvider swig_synthetic_script,
+                           SWIGPythonCreateCommandObject swig_create_cmd,
+                           SWIGPythonCalculateNumChildren swig_calc_children,
+                           SWIGPythonGetChildAtIndex swig_get_child_index,
+                           SWIGPythonGetIndexOfChildWithName swig_get_index_child,
+                           SWIGPythonCastPyObjectToSBValue swig_cast_to_sbvalue ,
+                           SWIGPythonGetValueObjectSPFromSBValue swig_get_valobj_sp_from_sbvalue,
+                           SWIGPythonUpdateSynthProviderInstance swig_update_provider,
+                           SWIGPythonMightHaveChildrenSynthProviderInstance swig_mighthavechildren_provider,
+                           SWIGPythonGetValueSynthProviderInstance swig_getvalue_provider,
+                           SWIGPythonCallCommand swig_call_command,
+                           SWIGPythonCallCommandObject swig_call_command_object,
+                           SWIGPythonCallModuleInit swig_call_module_init,
+                           SWIGPythonCreateOSPlugin swig_create_os_plugin,
+                           SWIGPythonScriptKeyword_Process swig_run_script_keyword_process,
+                           SWIGPythonScriptKeyword_Thread swig_run_script_keyword_thread,
+                           SWIGPythonScriptKeyword_Target swig_run_script_keyword_target,
+                           SWIGPythonScriptKeyword_Frame swig_run_script_keyword_frame,
+                           SWIGPythonScriptKeyword_Value swig_run_script_keyword_value,
+                           SWIGPython_GetDynamicSetting swig_plugin_get,
+                           SWIGPythonCreateScriptedThreadPlan swig_thread_plan_script,
+                           SWIGPythonCallThreadPlan swig_call_thread_plan);
+
+    const char *
+    GetDictionaryName ()
+    {
+        return m_dictionary_name.c_str();
+    }
+
+    PyThreadState *
+    GetThreadState()
+    {
+        return m_command_thread_state;
+    }
+
+    void
+    SetThreadState (PyThreadState *s)
+    {
+        if (s)
+            m_command_thread_state = s;
+    }
+
+    //----------------------------------------------------------------------
+    // IOHandlerDelegate
+    //----------------------------------------------------------------------
+    void
+    IOHandlerActivated (IOHandler &io_handler) override;
+
+    void
+    IOHandlerInputComplete (IOHandler &io_handler, std::string &data) override;
+
+    //------------------------------------------------------------------
+    // Static Functions
+    //------------------------------------------------------------------
+    static void
+    Initialize();
+    
+    static void
+    Terminate();
+    
+    static lldb::ScriptInterpreterSP
+    CreateInstance(CommandInterpreter &interpreter);
+    
+    static lldb_private::ConstString
+    GetPluginNameStatic();
+    
+    static const char *
+    GetPluginDescriptionStatic();
+    
+    //------------------------------------------------------------------
+    // PluginInterface protocol
+    //------------------------------------------------------------------
+    lldb_private::ConstString
+    GetPluginName() override;
+    
+    uint32_t
+    GetPluginVersion() override;
+
+    class Locker : public ScriptInterpreterLocker
+    {
+    public:
+        enum OnEntry
+        {
+            AcquireLock         = 0x0001,
+            InitSession         = 0x0002,
+            InitGlobals         = 0x0004,
+            NoSTDIN             = 0x0008
+        };
+        
+        enum OnLeave
+        {
+            FreeLock            = 0x0001,
+            FreeAcquiredLock    = 0x0002,    // do not free the lock if we already held it when calling constructor
+            TearDownSession     = 0x0004
+        };
+        
+        Locker(ScriptInterpreterPython *py_interpreter = nullptr,
+               uint16_t on_entry = AcquireLock | InitSession,
+               uint16_t on_leave = FreeLock | TearDownSession,
+               FILE *in = nullptr,
+               FILE *out = nullptr,
+               FILE *err = nullptr);
+        
+        ~Locker () override;
+
+    private:
+        bool
+        DoAcquireLock ();
+        
+        bool
+        DoInitSession (uint16_t on_entry_flags, FILE *in, FILE *out, FILE *err);
+        
+        bool
+        DoFreeLock ();
+        
+        bool
+        DoTearDownSession ();
+
+        static void
+        ReleasePythonLock ();
+        
+    	bool                     m_teardown_session;
+    	ScriptInterpreterPython *m_python_interpreter;
+//    	FILE*                    m_tmp_fh;
+        PyGILState_STATE         m_GILState;
+    };
+
+protected:
+    class SynchronicityHandler
+    {
+    private:
+        lldb::DebuggerSP             m_debugger_sp;
+        ScriptedCommandSynchronicity m_synch_wanted;
+        bool                         m_old_asynch;
+
+    public:
+        SynchronicityHandler(lldb::DebuggerSP,
+                             ScriptedCommandSynchronicity);
+
+        ~SynchronicityHandler();
+    };
+    
+    enum class AddLocation
+    {
+        Beginning,
+        End
+    };
+
+    static void AddToSysPath(AddLocation location, std::string path);
+
+    bool
+    EnterSession(uint16_t on_entry_flags,
+                 FILE *in,
+                 FILE *out,
+                 FILE *err);
+
+    void
+    LeaveSession();
+
+    void
+    SaveTerminalState(int fd);
+
+    void
+    RestoreTerminalState();
+
+    uint32_t
+    IsExecutingPython () const
+    {
+        return m_lock_count > 0;
+    }
+
+    uint32_t
+    IncrementLockCount()
+    {
+        return ++m_lock_count;
+    }
+
+    uint32_t
+    DecrementLockCount()
+    {
+        if (m_lock_count > 0)
+            --m_lock_count;
+        return m_lock_count;
+    }
+
+    enum ActiveIOHandler {
+        eIOHandlerNone,
+        eIOHandlerBreakpoint,
+        eIOHandlerWatchpoint
+    };
+
+    PythonObject &GetMainModule();
+
+    PythonDictionary &
+    GetSessionDictionary ();
+    
+    PythonDictionary &
+    GetSysModuleDictionary ();
+
+    bool
+    GetEmbeddedInterpreterModuleObjects ();
+
+    PythonFile m_saved_stdin;
+    PythonFile m_saved_stdout;
+    PythonFile m_saved_stderr;
+    PythonObject m_main_module;
+    PythonObject m_lldb_module;
+    PythonDictionary m_session_dict;
+    PythonDictionary m_sys_module_dict;
+    PythonObject m_run_one_line_function;
+    PythonObject m_run_one_line_str_global;
+    std::string m_dictionary_name;
+    TerminalState m_terminal_state;
+    ActiveIOHandler m_active_io_handler;
+    bool m_session_is_active;
+    bool m_pty_slave_is_open;
+    bool m_valid_session;
+    uint32_t m_lock_count;
+    PyThreadState *m_command_thread_state;
+};
+
+} // namespace lldb_private
+
+#endif // LLDB_DISABLE_PYTHON
+
+#endif // LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_SCRIPTINTERPRETERPYTHON_H
diff --git a/source/Plugins/ScriptInterpreter/Python/lldb-python.h b/source/Plugins/ScriptInterpreter/Python/lldb-python.h
new file mode 100644
index 0000000000000..013492c39bf80
--- /dev/null
+++ b/source/Plugins/ScriptInterpreter/Python/lldb-python.h
@@ -0,0 +1,31 @@
+//===-- lldb-python.h --------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_LLDB_PYTHON_H
+#define LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_LLDB_PYTHON_H
+
+// Python.h needs to be included before any system headers in order to avoid redefinition of macros
+
+#ifdef LLDB_DISABLE_PYTHON
+// Python is disabled in this build
+#else
+#if defined(__linux__)
+// features.h will define _POSIX_C_SOURCE if _GNU_SOURCE is defined.  This value
+// may be different from the value that Python defines it to be which results
+// in a warning.  Undefine _POSIX_C_SOURCE before including Python.h  The same
+// holds for _XOPEN_SOURCE.
+#undef _POSIX_C_SOURCE
+#undef _XOPEN_SOURCE
+#endif
+
+// Include python for non windows machines
+#include <Python.h>
+#endif // LLDB_DISABLE_PYTHON
+
+#endif // LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_LLDB_PYTHON_H
diff --git a/source/Plugins/SymbolFile/DWARF/DIERef.cpp b/source/Plugins/SymbolFile/DWARF/DIERef.cpp
new file mode 100644
index 0000000000000..c0754a1fdd542
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DIERef.cpp
@@ -0,0 +1,56 @@
+//===-- DIERef.cpp ----------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "DIERef.h"
+#include "DWARFCompileUnit.h"
+#include "DWARFFormValue.h"
+
+DIERef::DIERef() :
+    cu_offset(DW_INVALID_OFFSET),
+    die_offset(DW_INVALID_OFFSET)
+{}
+
+DIERef::DIERef(dw_offset_t d) :
+    cu_offset(DW_INVALID_OFFSET),
+    die_offset(d)
+{}
+
+DIERef::DIERef(dw_offset_t c, dw_offset_t d) :
+    cu_offset(c),
+    die_offset(d)
+{}
+
+DIERef::DIERef(lldb::user_id_t uid) :
+    cu_offset(uid>>32),
+    die_offset(uid&0xffffffff)
+{}
+
+DIERef::DIERef(const DWARFFormValue& form_value) :
+    cu_offset(DW_INVALID_OFFSET),
+    die_offset(DW_INVALID_OFFSET)
+{
+    if (form_value.IsValid())
+    {
+        const DWARFCompileUnit* dwarf_cu = form_value.GetCompileUnit();
+        if (dwarf_cu)
+        {
+            if (dwarf_cu->GetBaseObjOffset() != DW_INVALID_OFFSET)
+                cu_offset = dwarf_cu->GetBaseObjOffset();
+            else
+                cu_offset = dwarf_cu->GetOffset();
+        }
+        die_offset = form_value.Reference();
+    }
+}
+
+lldb::user_id_t
+DIERef::GetUID() const
+{
+    return ((lldb::user_id_t)cu_offset) << 32 | die_offset;
+}
diff --git a/source/Plugins/SymbolFile/DWARF/DIERef.h b/source/Plugins/SymbolFile/DWARF/DIERef.h
new file mode 100644
index 0000000000000..a5484db6bd6c9
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DIERef.h
@@ -0,0 +1,42 @@
+//===-- DIERef.h ------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SymbolFileDWARF_DIERef_h_
+#define SymbolFileDWARF_DIERef_h_
+
+#include "lldb/Core/dwarf.h"
+#include "lldb/lldb-defines.h"
+
+class DWARFFormValue;
+
+struct DIERef
+{
+    DIERef();
+
+    explicit
+    DIERef(dw_offset_t d);
+
+    DIERef(dw_offset_t c, dw_offset_t d);
+
+    explicit
+    DIERef(lldb::user_id_t uid);
+
+    explicit
+    DIERef(const DWARFFormValue& form_value);
+
+    lldb::user_id_t
+    GetUID() const;
+
+    dw_offset_t cu_offset;
+    dw_offset_t die_offset;
+};
+
+typedef std::vector<DIERef> DIEArray;
+
+#endif  // SymbolFileDWARF_DIERef_h_
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFASTParser.h b/source/Plugins/SymbolFile/DWARF/DWARFASTParser.h
new file mode 100644
index 0000000000000..ab20844bfcfde
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DWARFASTParser.h
@@ -0,0 +1,65 @@
+//===-- DWARFASTParser.h ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SymbolFileDWARF_DWARFASTParser_h_
+#define SymbolFileDWARF_DWARFASTParser_h_
+
+#include "DWARFDefines.h"
+#include "lldb/Core/PluginInterface.h"
+#include "lldb/Symbol/CompilerDecl.h"
+#include "lldb/Symbol/CompilerDeclContext.h"
+
+class DWARFDIE;
+
+class DWARFASTParser
+{
+public:
+    virtual ~DWARFASTParser() {}
+
+    virtual lldb::TypeSP
+    ParseTypeFromDWARF (const lldb_private::SymbolContext& sc,
+                        const DWARFDIE &die,
+                        lldb_private::Log *log,
+                        bool *type_is_new_ptr) = 0;
+
+    virtual lldb_private::Function *
+    ParseFunctionFromDWARF (const lldb_private::SymbolContext& sc,
+                            const DWARFDIE &die) = 0;
+
+    virtual bool
+    CanCompleteType (const lldb_private::CompilerType &compiler_type)
+    {
+        return false;
+    }
+
+    virtual bool
+    CompleteType (const lldb_private::CompilerType &compiler_type)
+    {
+        return false;
+    }
+
+    virtual bool
+    CompleteTypeFromDWARF (const DWARFDIE &die,
+                           lldb_private::Type *type,
+                           lldb_private::CompilerType &compiler_type) = 0;
+
+    virtual lldb_private::CompilerDecl
+    GetDeclForUIDFromDWARF (const DWARFDIE &die) = 0;
+
+    virtual lldb_private::CompilerDeclContext
+    GetDeclContextForUIDFromDWARF (const DWARFDIE &die) = 0;
+
+    virtual lldb_private::CompilerDeclContext
+    GetDeclContextContainingUIDFromDWARF (const DWARFDIE &die) = 0;
+
+    virtual std::vector<DWARFDIE>
+    GetDIEForDeclContext (lldb_private::CompilerDeclContext decl_context) = 0;
+};
+
+#endif  // SymbolFileDWARF_DWARFASTParser_h_
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp b/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp
new file mode 100644
index 0000000000000..68a0285b69dfe
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp
@@ -0,0 +1,4034 @@
+//===-- DWARFASTParserClang.cpp ---------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "DWARFASTParserClang.h"
+#include "DWARFCompileUnit.h"
+#include "DWARFDebugInfo.h"
+#include "DWARFDeclContext.h"
+#include "DWARFDefines.h"
+#include "DWARFDIE.h"
+#include "DWARFDIECollection.h"
+#include "SymbolFileDWARF.h"
+#include "SymbolFileDWARFDebugMap.h"
+#include "UniqueDWARFASTType.h"
+
+#include "lldb/Interpreter/Args.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Core/Value.h"
+#include "lldb/Host/Host.h"
+#include "lldb/Symbol/ClangASTImporter.h"
+#include "lldb/Symbol/ClangExternalASTSourceCommon.h"
+#include "lldb/Symbol/CompileUnit.h"
+#include "lldb/Symbol/Function.h"
+#include "lldb/Symbol/ObjectFile.h"
+#include "lldb/Symbol/SymbolVendor.h"
+#include "lldb/Symbol/TypeList.h"
+#include "lldb/Symbol/TypeMap.h"
+#include "lldb/Target/Language.h"
+#include "Plugins/Language/ObjC/ObjCLanguage.h"
+
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclObjC.h"
+
+#include <map>
+#include <vector>
+
+//#define ENABLE_DEBUG_PRINTF // COMMENT OUT THIS LINE PRIOR TO CHECKIN
+
+#ifdef ENABLE_DEBUG_PRINTF
+#include <stdio.h>
+#define DEBUG_PRINTF(fmt, ...) printf(fmt, __VA_ARGS__)
+#else
+#define DEBUG_PRINTF(fmt, ...)
+#endif
+
+
+using namespace lldb;
+using namespace lldb_private;
+DWARFASTParserClang::DWARFASTParserClang (ClangASTContext &ast) :
+    m_ast (ast),
+    m_die_to_decl_ctx (),
+    m_decl_ctx_to_die ()
+{
+}
+
+DWARFASTParserClang::~DWARFASTParserClang ()
+{
+}
+
+
+static AccessType
+DW_ACCESS_to_AccessType (uint32_t dwarf_accessibility)
+{
+    switch (dwarf_accessibility)
+    {
+        case DW_ACCESS_public:      return eAccessPublic;
+        case DW_ACCESS_private:     return eAccessPrivate;
+        case DW_ACCESS_protected:   return eAccessProtected;
+        default:                    break;
+    }
+    return eAccessNone;
+}
+
+static bool
+DeclKindIsCXXClass (clang::Decl::Kind decl_kind)
+{
+    switch (decl_kind)
+    {
+        case clang::Decl::CXXRecord:
+        case clang::Decl::ClassTemplateSpecialization:
+            return true;
+        default:
+            break;
+    }
+    return false;
+}
+
+struct BitfieldInfo
+{
+    uint64_t bit_size;
+    uint64_t bit_offset;
+
+    BitfieldInfo () :
+    bit_size (LLDB_INVALID_ADDRESS),
+    bit_offset (LLDB_INVALID_ADDRESS)
+    {
+    }
+
+    void
+    Clear()
+    {
+        bit_size = LLDB_INVALID_ADDRESS;
+        bit_offset = LLDB_INVALID_ADDRESS;
+    }
+
+    bool IsValid ()
+    {
+        return (bit_size != LLDB_INVALID_ADDRESS) &&
+        (bit_offset != LLDB_INVALID_ADDRESS);
+    }
+};
+
+
+ClangASTImporter &
+DWARFASTParserClang::GetClangASTImporter()
+{
+    if (!m_clang_ast_importer_ap)
+    {
+        m_clang_ast_importer_ap.reset (new ClangASTImporter);
+    }
+    return *m_clang_ast_importer_ap;
+}
+
+
+TypeSP
+DWARFASTParserClang::ParseTypeFromDWO (const DWARFDIE &die, Log *log)
+{
+    ModuleSP dwo_module_sp = die.GetContainingDWOModule();
+    if (dwo_module_sp)
+    {
+        // This type comes from an external DWO module
+        std::vector<CompilerContext> dwo_context;
+        die.GetDWOContext(dwo_context);
+        TypeMap dwo_types;
+        if (dwo_module_sp->GetSymbolVendor()->FindTypes(dwo_context, true, dwo_types))
+        {
+            const size_t num_dwo_types = dwo_types.GetSize();
+            if (num_dwo_types == 1)
+            {
+                // We found a real definition for this type elsewhere
+                // so lets use it and cache the fact that we found
+                // a complete type for this die
+                TypeSP dwo_type_sp = dwo_types.GetTypeAtIndex(0);
+                if (dwo_type_sp)
+                {
+                    lldb_private::CompilerType dwo_type = dwo_type_sp->GetForwardCompilerType();
+
+                    lldb_private::CompilerType type = GetClangASTImporter().CopyType (m_ast, dwo_type);
+
+                    //printf ("copied_qual_type: ast = %p, clang_type = %p, name = '%s'\n", m_ast, copied_qual_type.getAsOpaquePtr(), external_type->GetName().GetCString());
+                    if (type)
+                    {
+                        SymbolFileDWARF *dwarf = die.GetDWARF();
+                        TypeSP type_sp (new Type (die.GetID(),
+                                                  dwarf,
+                                                  dwo_type_sp->GetName(),
+                                                  dwo_type_sp->GetByteSize(),
+                                                  NULL,
+                                                  LLDB_INVALID_UID,
+                                                  Type::eEncodingInvalid,
+                                                  &dwo_type_sp->GetDeclaration(),
+                                                  type,
+                                                  Type::eResolveStateForward));
+
+                        dwarf->GetTypeList()->Insert(type_sp);
+                        dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get();
+                        clang::TagDecl *tag_decl = ClangASTContext::GetAsTagDecl(type);
+                        if (tag_decl)
+                            LinkDeclContextToDIE(tag_decl, die);
+                        else
+                        {
+                            clang::DeclContext *defn_decl_ctx = GetCachedClangDeclContextForDIE(die);
+                            if (defn_decl_ctx)
+                                LinkDeclContextToDIE(defn_decl_ctx, die);
+                        }
+                        return type_sp;
+                    }
+                }
+            }
+        }
+    }
+    return TypeSP();
+}
+
+TypeSP
+DWARFASTParserClang::ParseTypeFromDWARF (const SymbolContext& sc,
+                                         const DWARFDIE &die,
+                                         Log *log,
+                                         bool *type_is_new_ptr)
+{
+    TypeSP type_sp;
+
+    if (type_is_new_ptr)
+        *type_is_new_ptr = false;
+
+    AccessType accessibility = eAccessNone;
+    if (die)
+    {
+        SymbolFileDWARF *dwarf = die.GetDWARF();
+        if (log)
+        {
+            DWARFDIE context_die;
+            clang::DeclContext *context = GetClangDeclContextContainingDIE (die, &context_die);
+
+            dwarf->GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x, decl_ctx = %p (die 0x%8.8x)) %s name = '%s')",
+                                                             die.GetOffset(),
+                                                             static_cast<void*>(context),
+                                                             context_die.GetOffset(),
+                                                             die.GetTagAsCString(),
+                                                             die.GetName());
+
+        }
+        //
+        //        Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
+        //        if (log && dwarf_cu)
+        //        {
+        //            StreamString s;
+        //            die->DumpLocation (this, dwarf_cu, s);
+        //            dwarf->GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDwarf::%s %s", __FUNCTION__, s.GetData());
+        //
+        //        }
+
+        Type *type_ptr = dwarf->GetDIEToType().lookup (die.GetDIE());
+        TypeList* type_list = dwarf->GetTypeList();
+        if (type_ptr == NULL)
+        {
+            if (type_is_new_ptr)
+                *type_is_new_ptr = true;
+
+            const dw_tag_t tag = die.Tag();
+
+            bool is_forward_declaration = false;
+            DWARFAttributes attributes;
+            const char *type_name_cstr = NULL;
+            ConstString type_name_const_str;
+            Type::ResolveState resolve_state = Type::eResolveStateUnresolved;
+            uint64_t byte_size = 0;
+            Declaration decl;
+
+            Type::EncodingDataType encoding_data_type = Type::eEncodingIsUID;
+            CompilerType clang_type;
+            DWARFFormValue form_value;
+
+            dw_attr_t attr;
+
+            switch (tag)
+            {
+                case DW_TAG_base_type:
+                case DW_TAG_pointer_type:
+                case DW_TAG_reference_type:
+                case DW_TAG_rvalue_reference_type:
+                case DW_TAG_typedef:
+                case DW_TAG_const_type:
+                case DW_TAG_restrict_type:
+                case DW_TAG_volatile_type:
+                case DW_TAG_unspecified_type:
+                {
+                    // Set a bit that lets us know that we are currently parsing this
+                    dwarf->GetDIEToType()[die.GetDIE()] = DIE_IS_BEING_PARSED;
+
+                    const size_t num_attributes = die.GetAttributes (attributes);
+                    uint32_t encoding = 0;
+                    lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
+
+                    if (num_attributes > 0)
+                    {
+                        uint32_t i;
+                        for (i=0; i<num_attributes; ++i)
+                        {
+                            attr = attributes.AttributeAtIndex(i);
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                            {
+                                switch (attr)
+                                {
+                                    case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+                                    case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
+                                    case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+                                    case DW_AT_name:
+
+                                        type_name_cstr = form_value.AsCString();
+                                        // Work around a bug in llvm-gcc where they give a name to a reference type which doesn't
+                                        // include the "&"...
+                                        if (tag == DW_TAG_reference_type)
+                                        {
+                                            if (strchr (type_name_cstr, '&') == NULL)
+                                                type_name_cstr = NULL;
+                                        }
+                                        if (type_name_cstr)
+                                            type_name_const_str.SetCString(type_name_cstr);
+                                        break;
+                                    case DW_AT_byte_size:   byte_size = form_value.Unsigned(); break;
+                                    case DW_AT_encoding:    encoding = form_value.Unsigned(); break;
+                                    case DW_AT_type:        encoding_uid = DIERef(form_value).GetUID(); break;
+                                    default:
+                                    case DW_AT_sibling:
+                                        break;
+                                }
+                            }
+                        }
+                    }
+
+                    DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\") type => 0x%8.8lx\n", die.GetID(), DW_TAG_value_to_name(tag), type_name_cstr, encoding_uid);
+
+                    switch (tag)
+                    {
+                        default:
+                            break;
+
+                        case DW_TAG_unspecified_type:
+                            if (strcmp(type_name_cstr, "nullptr_t") == 0 ||
+                                strcmp(type_name_cstr, "decltype(nullptr)") == 0 )
+                            {
+                                resolve_state = Type::eResolveStateFull;
+                                clang_type = m_ast.GetBasicType(eBasicTypeNullPtr);
+                                break;
+                            }
+                            // Fall through to base type below in case we can handle the type there...
+
+                        case DW_TAG_base_type:
+                            resolve_state = Type::eResolveStateFull;
+                            clang_type = m_ast.GetBuiltinTypeForDWARFEncodingAndBitSize (type_name_cstr,
+                                                                                         encoding,
+                                                                                         byte_size * 8);
+                            break;
+
+                        case DW_TAG_pointer_type:           encoding_data_type = Type::eEncodingIsPointerUID;           break;
+                        case DW_TAG_reference_type:         encoding_data_type = Type::eEncodingIsLValueReferenceUID;   break;
+                        case DW_TAG_rvalue_reference_type:  encoding_data_type = Type::eEncodingIsRValueReferenceUID;   break;
+                        case DW_TAG_typedef:                encoding_data_type = Type::eEncodingIsTypedefUID;           break;
+                        case DW_TAG_const_type:             encoding_data_type = Type::eEncodingIsConstUID;             break;
+                        case DW_TAG_restrict_type:          encoding_data_type = Type::eEncodingIsRestrictUID;          break;
+                        case DW_TAG_volatile_type:          encoding_data_type = Type::eEncodingIsVolatileUID;          break;
+                    }
+
+                    if (!clang_type && (encoding_data_type == Type::eEncodingIsPointerUID || encoding_data_type == Type::eEncodingIsTypedefUID) && sc.comp_unit != NULL)
+                    {
+                        bool translation_unit_is_objc = (sc.comp_unit->GetLanguage() == eLanguageTypeObjC || sc.comp_unit->GetLanguage() == eLanguageTypeObjC_plus_plus);
+
+                        if (translation_unit_is_objc)
+                        {
+                            if (type_name_cstr != NULL)
+                            {
+                                static ConstString g_objc_type_name_id("id");
+                                static ConstString g_objc_type_name_Class("Class");
+                                static ConstString g_objc_type_name_selector("SEL");
+
+                                if (type_name_const_str == g_objc_type_name_id)
+                                {
+                                    if (log)
+                                        dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+                                                                                         "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'id' built-in type.",
+                                                                                         die.GetOffset(),
+                                                                                         die.GetTagAsCString(),
+                                                                                         die.GetName());
+                                    clang_type = m_ast.GetBasicType(eBasicTypeObjCID);
+                                    encoding_data_type = Type::eEncodingIsUID;
+                                    encoding_uid = LLDB_INVALID_UID;
+                                    resolve_state = Type::eResolveStateFull;
+
+                                }
+                                else if (type_name_const_str == g_objc_type_name_Class)
+                                {
+                                    if (log)
+                                        dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+                                                                                         "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'Class' built-in type.",
+                                                                                         die.GetOffset(),
+                                                                                         die.GetTagAsCString(),
+                                                                                         die.GetName());
+                                    clang_type = m_ast.GetBasicType(eBasicTypeObjCClass);
+                                    encoding_data_type = Type::eEncodingIsUID;
+                                    encoding_uid = LLDB_INVALID_UID;
+                                    resolve_state = Type::eResolveStateFull;
+                                }
+                                else if (type_name_const_str == g_objc_type_name_selector)
+                                {
+                                    if (log)
+                                        dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+                                                                                         "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'selector' built-in type.",
+                                                                                         die.GetOffset(),
+                                                                                         die.GetTagAsCString(),
+                                                                                         die.GetName());
+                                    clang_type = m_ast.GetBasicType(eBasicTypeObjCSel);
+                                    encoding_data_type = Type::eEncodingIsUID;
+                                    encoding_uid = LLDB_INVALID_UID;
+                                    resolve_state = Type::eResolveStateFull;
+                                }
+                            }
+                            else if (encoding_data_type == Type::eEncodingIsPointerUID && encoding_uid != LLDB_INVALID_UID)
+                            {
+                                // Clang sometimes erroneously emits id as objc_object*.  In that case we fix up the type to "id".
+
+                                const DWARFDIE encoding_die = die.GetDIE(encoding_uid);
+
+                                if (encoding_die && encoding_die.Tag() == DW_TAG_structure_type)
+                                {
+                                    if (const char *struct_name = encoding_die.GetName())
+                                    {
+                                        if (!strcmp(struct_name, "objc_object"))
+                                        {
+                                            if (log)
+                                                dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+                                                                                                 "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is 'objc_object*', which we overrode to 'id'.",
+                                                                                                 die.GetOffset(),
+                                                                                                 die.GetTagAsCString(),
+                                                                                                 die.GetName());
+                                            clang_type = m_ast.GetBasicType(eBasicTypeObjCID);
+                                            encoding_data_type = Type::eEncodingIsUID;
+                                            encoding_uid = LLDB_INVALID_UID;
+                                            resolve_state = Type::eResolveStateFull;
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+
+                    type_sp.reset( new Type (die.GetID(),
+                                             dwarf,
+                                             type_name_const_str,
+                                             byte_size,
+                                             NULL,
+                                             encoding_uid,
+                                             encoding_data_type,
+                                             &decl,
+                                             clang_type,
+                                             resolve_state));
+
+                    dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get();
+
+                    //                  Type* encoding_type = GetUniquedTypeForDIEOffset(encoding_uid, type_sp, NULL, 0, 0, false);
+                    //                  if (encoding_type != NULL)
+                    //                  {
+                    //                      if (encoding_type != DIE_IS_BEING_PARSED)
+                    //                          type_sp->SetEncodingType(encoding_type);
+                    //                      else
+                    //                          m_indirect_fixups.push_back(type_sp.get());
+                    //                  }
+                }
+                    break;
+
+                case DW_TAG_structure_type:
+                case DW_TAG_union_type:
+                case DW_TAG_class_type:
+                {
+                    // Set a bit that lets us know that we are currently parsing this
+                    dwarf->GetDIEToType()[die.GetDIE()] = DIE_IS_BEING_PARSED;
+                    bool byte_size_valid = false;
+
+                    LanguageType class_language = eLanguageTypeUnknown;
+                    bool is_complete_objc_class = false;
+                    //bool struct_is_class = false;
+                    const size_t num_attributes = die.GetAttributes (attributes);
+                    if (num_attributes > 0)
+                    {
+                        uint32_t i;
+                        for (i=0; i<num_attributes; ++i)
+                        {
+                            attr = attributes.AttributeAtIndex(i);
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                            {
+                                switch (attr)
+                                {
+                                    case DW_AT_decl_file:
+                                        if (die.GetCU()->DW_AT_decl_file_attributes_are_invalid())
+                                        {
+                                            // llvm-gcc outputs invalid DW_AT_decl_file attributes that always
+                                            // point to the compile unit file, so we clear this invalid value
+                                            // so that we can still unique types efficiently.
+                                            decl.SetFile(FileSpec ("<invalid>", false));
+                                        }
+                                        else
+                                            decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned()));
+                                        break;
+
+                                    case DW_AT_decl_line:
+                                        decl.SetLine(form_value.Unsigned());
+                                        break;
+
+                                    case DW_AT_decl_column:
+                                        decl.SetColumn(form_value.Unsigned());
+                                        break;
+
+                                    case DW_AT_name:
+                                        type_name_cstr = form_value.AsCString();
+                                        type_name_const_str.SetCString(type_name_cstr);
+                                        break;
+
+                                    case DW_AT_byte_size:
+                                        byte_size = form_value.Unsigned();
+                                        byte_size_valid = true;
+                                        break;
+
+                                    case DW_AT_accessibility:
+                                        accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned());
+                                        break;
+
+                                    case DW_AT_declaration:
+                                        is_forward_declaration = form_value.Boolean();
+                                        break;
+
+                                    case DW_AT_APPLE_runtime_class:
+                                        class_language = (LanguageType)form_value.Signed();
+                                        break;
+
+                                    case DW_AT_APPLE_objc_complete_type:
+                                        is_complete_objc_class = form_value.Signed();
+                                        break;
+
+                                    case DW_AT_allocated:
+                                    case DW_AT_associated:
+                                    case DW_AT_data_location:
+                                    case DW_AT_description:
+                                    case DW_AT_start_scope:
+                                    case DW_AT_visibility:
+                                    default:
+                                    case DW_AT_sibling:
+                                        break;
+                                }
+                            }
+                        }
+                    }
+
+                    // UniqueDWARFASTType is large, so don't create a local variables on the
+                    // stack, put it on the heap. This function is often called recursively
+                    // and clang isn't good and sharing the stack space for variables in different blocks.
+                    std::unique_ptr<UniqueDWARFASTType> unique_ast_entry_ap(new UniqueDWARFASTType());
+
+                    if (type_name_const_str)
+                    {
+                        LanguageType die_language = die.GetLanguage();
+                        bool handled = false;
+                        if (Language::LanguageIsCPlusPlus(die_language))
+                        {
+                            std::string qualified_name;
+                            if (die.GetQualifiedName(qualified_name))
+                            {
+                                handled = true;
+                                ConstString const_qualified_name(qualified_name);
+                                if (dwarf->GetUniqueDWARFASTTypeMap().Find(const_qualified_name, die, Declaration(),
+                                                                           byte_size_valid ? byte_size : -1,
+                                                                           *unique_ast_entry_ap))
+                                {
+                                    type_sp = unique_ast_entry_ap->m_type_sp;
+                                    if (type_sp)
+                                    {
+                                        dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get();
+                                        return type_sp;
+                                    }
+                                }
+                            }
+                        }
+
+                        if (!handled)
+                        {
+                            if (dwarf->GetUniqueDWARFASTTypeMap().Find(type_name_const_str, die, decl,
+                                                                       byte_size_valid ? byte_size : -1,
+                                                                       *unique_ast_entry_ap))
+                            {
+                                type_sp = unique_ast_entry_ap->m_type_sp;
+                                if (type_sp)
+                                {
+                                    dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get();
+                                    return type_sp;
+                                }
+                            }
+                        }
+                    }
+
+                    DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", die.GetID(), DW_TAG_value_to_name(tag), type_name_cstr);
+
+                    int tag_decl_kind = -1;
+                    AccessType default_accessibility = eAccessNone;
+                    if (tag == DW_TAG_structure_type)
+                    {
+                        tag_decl_kind = clang::TTK_Struct;
+                        default_accessibility = eAccessPublic;
+                    }
+                    else if (tag == DW_TAG_union_type)
+                    {
+                        tag_decl_kind = clang::TTK_Union;
+                        default_accessibility = eAccessPublic;
+                    }
+                    else if (tag == DW_TAG_class_type)
+                    {
+                        tag_decl_kind = clang::TTK_Class;
+                        default_accessibility = eAccessPrivate;
+                    }
+
+                    if (byte_size_valid && byte_size == 0 && type_name_cstr &&
+                        die.HasChildren() == false &&
+                        sc.comp_unit->GetLanguage() == eLanguageTypeObjC)
+                    {
+                        // Work around an issue with clang at the moment where
+                        // forward declarations for objective C classes are emitted
+                        // as:
+                        //  DW_TAG_structure_type [2]
+                        //  DW_AT_name( "ForwardObjcClass" )
+                        //  DW_AT_byte_size( 0x00 )
+                        //  DW_AT_decl_file( "..." )
+                        //  DW_AT_decl_line( 1 )
+                        //
+                        // Note that there is no DW_AT_declaration and there are
+                        // no children, and the byte size is zero.
+                        is_forward_declaration = true;
+                    }
+
+                    if (class_language == eLanguageTypeObjC ||
+                        class_language == eLanguageTypeObjC_plus_plus)
+                    {
+                        if (!is_complete_objc_class && die.Supports_DW_AT_APPLE_objc_complete_type())
+                        {
+                            // We have a valid eSymbolTypeObjCClass class symbol whose
+                            // name matches the current objective C class that we
+                            // are trying to find and this DIE isn't the complete
+                            // definition (we checked is_complete_objc_class above and
+                            // know it is false), so the real definition is in here somewhere
+                            type_sp = dwarf->FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true);
+
+                            if (!type_sp)
+                            {
+                                SymbolFileDWARFDebugMap *debug_map_symfile = dwarf->GetDebugMapSymfile();
+                                if (debug_map_symfile)
+                                {
+                                    // We weren't able to find a full declaration in
+                                    // this DWARF, see if we have a declaration anywhere
+                                    // else...
+                                    type_sp = debug_map_symfile->FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true);
+                                }
+                            }
+
+                            if (type_sp)
+                            {
+                                if (log)
+                                {
+                                    dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+                                                                                     "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is an incomplete objc type, complete type is 0x%8.8" PRIx64,
+                                                                                     static_cast<void*>(this),
+                                                                                     die.GetOffset(),
+                                                                                     DW_TAG_value_to_name(tag),
+                                                                                     type_name_cstr,
+                                                                                     type_sp->GetID());
+                                }
+
+                                // We found a real definition for this type elsewhere
+                                // so lets use it and cache the fact that we found
+                                // a complete type for this die
+                                dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get();
+                                return type_sp;
+                            }
+                        }
+                    }
+
+
+                    if (is_forward_declaration)
+                    {
+                        // We have a forward declaration to a type and we need
+                        // to try and find a full declaration. We look in the
+                        // current type index just in case we have a forward
+                        // declaration followed by an actual declarations in the
+                        // DWARF. If this fails, we need to look elsewhere...
+                        if (log)
+                        {
+                            dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+                                                                             "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, trying to find complete type",
+                                                                             static_cast<void*>(this),
+                                                                             die.GetOffset(),
+                                                                             DW_TAG_value_to_name(tag),
+                                                                             type_name_cstr);
+                        }
+
+                        // See if the type comes from a DWO module and if so, track down that type.
+                        type_sp = ParseTypeFromDWO(die, log);
+                        if (type_sp)
+                            return type_sp;
+
+                        DWARFDeclContext die_decl_ctx;
+                        die.GetDWARFDeclContext(die_decl_ctx);
+
+                        //type_sp = FindDefinitionTypeForDIE (dwarf_cu, die, type_name_const_str);
+                        type_sp = dwarf->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
+
+                        if (!type_sp)
+                        {
+                            SymbolFileDWARFDebugMap *debug_map_symfile = dwarf->GetDebugMapSymfile();
+                            if (debug_map_symfile)
+                            {
+                                // We weren't able to find a full declaration in
+                                // this DWARF, see if we have a declaration anywhere
+                                // else...
+                                type_sp = debug_map_symfile->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
+                            }
+                        }
+
+                        if (type_sp)
+                        {
+                            if (log)
+                            {
+                                dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+                                                                                 "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, complete type is 0x%8.8" PRIx64,
+                                                                                 static_cast<void*>(this),
+                                                                                 die.GetOffset(),
+                                                                                 DW_TAG_value_to_name(tag),
+                                                                                 type_name_cstr,
+                                                                                 type_sp->GetID());
+                            }
+
+                            // We found a real definition for this type elsewhere
+                            // so lets use it and cache the fact that we found
+                            // a complete type for this die
+                            dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get();
+                            clang::DeclContext *defn_decl_ctx = GetCachedClangDeclContextForDIE(
+                                dwarf->DebugInfo()->GetDIE(DIERef(type_sp->GetID())));
+                            if (defn_decl_ctx)
+                                LinkDeclContextToDIE(defn_decl_ctx, die);
+                            return type_sp;
+                        }
+                    }
+                    assert (tag_decl_kind != -1);
+                    bool clang_type_was_created = false;
+                    clang_type.SetCompilerType(&m_ast, dwarf->GetForwardDeclDieToClangType().lookup (die.GetDIE()));
+                    if (!clang_type)
+                    {
+                        clang::DeclContext *decl_ctx = GetClangDeclContextContainingDIE (die, nullptr);
+                        if (accessibility == eAccessNone && decl_ctx)
+                        {
+                            // Check the decl context that contains this class/struct/union.
+                            // If it is a class we must give it an accessibility.
+                            const clang::Decl::Kind containing_decl_kind = decl_ctx->getDeclKind();
+                            if (DeclKindIsCXXClass (containing_decl_kind))
+                                accessibility = default_accessibility;
+                        }
+
+                        ClangASTMetadata metadata;
+                        metadata.SetUserID(die.GetID());
+                        metadata.SetIsDynamicCXXType(dwarf->ClassOrStructIsVirtual (die));
+
+                        if (type_name_cstr && strchr (type_name_cstr, '<'))
+                        {
+                            ClangASTContext::TemplateParameterInfos template_param_infos;
+                            if (ParseTemplateParameterInfos (die, template_param_infos))
+                            {
+                                clang::ClassTemplateDecl *class_template_decl = m_ast.ParseClassTemplateDecl (decl_ctx,
+                                                                                                              accessibility,
+                                                                                                              type_name_cstr,
+                                                                                                              tag_decl_kind,
+                                                                                                              template_param_infos);
+
+                                clang::ClassTemplateSpecializationDecl *class_specialization_decl = m_ast.CreateClassTemplateSpecializationDecl (decl_ctx,
+                                                                                                                                                 class_template_decl,
+                                                                                                                                                 tag_decl_kind,
+                                                                                                                                                 template_param_infos);
+                                clang_type = m_ast.CreateClassTemplateSpecializationType (class_specialization_decl);
+                                clang_type_was_created = true;
+
+                                m_ast.SetMetadata (class_template_decl, metadata);
+                                m_ast.SetMetadata (class_specialization_decl, metadata);
+                            }
+                        }
+
+                        if (!clang_type_was_created)
+                        {
+                            clang_type_was_created = true;
+                            clang_type = m_ast.CreateRecordType (decl_ctx,
+                                                                 accessibility,
+                                                                 type_name_cstr,
+                                                                 tag_decl_kind,
+                                                                 class_language,
+                                                                 &metadata);
+                        }
+                    }
+
+                    // Store a forward declaration to this class type in case any
+                    // parameters in any class methods need it for the clang
+                    // types for function prototypes.
+                    LinkDeclContextToDIE(m_ast.GetDeclContextForType(clang_type), die);
+                    type_sp.reset (new Type (die.GetID(),
+                                             dwarf,
+                                             type_name_const_str,
+                                             byte_size,
+                                             NULL,
+                                             LLDB_INVALID_UID,
+                                             Type::eEncodingIsUID,
+                                             &decl,
+                                             clang_type,
+                                             Type::eResolveStateForward));
+
+                    type_sp->SetIsCompleteObjCClass(is_complete_objc_class);
+
+
+                    // Add our type to the unique type map so we don't
+                    // end up creating many copies of the same type over
+                    // and over in the ASTContext for our module
+                    unique_ast_entry_ap->m_type_sp = type_sp;
+                    unique_ast_entry_ap->m_die = die;
+                    unique_ast_entry_ap->m_declaration = decl;
+                    unique_ast_entry_ap->m_byte_size = byte_size;
+                    dwarf->GetUniqueDWARFASTTypeMap().Insert (type_name_const_str,
+                                                              *unique_ast_entry_ap);
+
+                    if (is_forward_declaration && die.HasChildren())
+                    {
+                        // Check to see if the DIE actually has a definition, some version of GCC will
+                        // emit DIEs with DW_AT_declaration set to true, but yet still have subprogram,
+                        // members, or inheritance, so we can't trust it
+                        DWARFDIE child_die = die.GetFirstChild();
+                        while (child_die)
+                        {
+                            switch (child_die.Tag())
+                            {
+                                case DW_TAG_inheritance:
+                                case DW_TAG_subprogram:
+                                case DW_TAG_member:
+                                case DW_TAG_APPLE_property:
+                                case DW_TAG_class_type:
+                                case DW_TAG_structure_type:
+                                case DW_TAG_enumeration_type:
+                                case DW_TAG_typedef:
+                                case DW_TAG_union_type:
+                                    child_die.Clear();
+                                    is_forward_declaration = false;
+                                    break;
+                                default:
+                                    child_die = child_die.GetSibling();
+                                    break;
+                            }
+                        }
+                    }
+
+                    if (!is_forward_declaration)
+                    {
+                        // Always start the definition for a class type so that
+                        // if the class has child classes or types that require
+                        // the class to be created for use as their decl contexts
+                        // the class will be ready to accept these child definitions.
+                        if (die.HasChildren() == false)
+                        {
+                            // No children for this struct/union/class, lets finish it
+                            ClangASTContext::StartTagDeclarationDefinition (clang_type);
+                            ClangASTContext::CompleteTagDeclarationDefinition (clang_type);
+
+                            if (tag == DW_TAG_structure_type) // this only applies in C
+                            {
+                                clang::RecordDecl *record_decl = ClangASTContext::GetAsRecordDecl(clang_type);
+
+                                if (record_decl)
+                                    m_record_decl_to_layout_map.insert(std::make_pair(record_decl, LayoutInfo()));
+                            }
+                        }
+                        else if (clang_type_was_created)
+                        {
+                            // Start the definition if the class is not objective C since
+                            // the underlying decls respond to isCompleteDefinition(). Objective
+                            // C decls don't respond to isCompleteDefinition() so we can't
+                            // start the declaration definition right away. For C++ class/union/structs
+                            // we want to start the definition in case the class is needed as the
+                            // declaration context for a contained class or type without the need
+                            // to complete that type..
+
+                            if (class_language != eLanguageTypeObjC &&
+                                class_language != eLanguageTypeObjC_plus_plus)
+                                ClangASTContext::StartTagDeclarationDefinition (clang_type);
+
+                            // Leave this as a forward declaration until we need
+                            // to know the details of the type. lldb_private::Type
+                            // will automatically call the SymbolFile virtual function
+                            // "SymbolFileDWARF::CompleteType(Type *)"
+                            // When the definition needs to be defined.
+                            assert(!dwarf->GetForwardDeclClangTypeToDie().count(ClangASTContext::RemoveFastQualifiers(clang_type).GetOpaqueQualType()) &&
+                                   "Type already in the forward declaration map!");
+                            assert(((SymbolFileDWARF*)m_ast.GetSymbolFile())->UserIDMatches(die.GetDIERef().GetUID()) &&
+                                   "Adding incorrect type to forward declaration map");
+                            dwarf->GetForwardDeclDieToClangType()[die.GetDIE()] = clang_type.GetOpaqueQualType();
+                            dwarf->GetForwardDeclClangTypeToDie()[ClangASTContext::RemoveFastQualifiers(clang_type).GetOpaqueQualType()] = die.GetDIERef();
+                            m_ast.SetHasExternalStorage (clang_type.GetOpaqueQualType(), true);
+                        }
+                    }
+                }
+                    break;
+
+                case DW_TAG_enumeration_type:
+                {
+                    // Set a bit that lets us know that we are currently parsing this
+                    dwarf->GetDIEToType()[die.GetDIE()] = DIE_IS_BEING_PARSED;
+
+                    DWARFFormValue encoding_form;
+
+                    const size_t num_attributes = die.GetAttributes (attributes);
+                    if (num_attributes > 0)
+                    {
+                        uint32_t i;
+
+                        for (i=0; i<num_attributes; ++i)
+                        {
+                            attr = attributes.AttributeAtIndex(i);
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                            {
+                                switch (attr)
+                                {
+                                    case DW_AT_decl_file:       decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+                                    case DW_AT_decl_line:       decl.SetLine(form_value.Unsigned()); break;
+                                    case DW_AT_decl_column:     decl.SetColumn(form_value.Unsigned()); break;
+                                    case DW_AT_name:
+                                        type_name_cstr = form_value.AsCString();
+                                        type_name_const_str.SetCString(type_name_cstr);
+                                        break;
+                                    case DW_AT_type:            encoding_form = form_value; break;
+                                    case DW_AT_byte_size:       byte_size = form_value.Unsigned(); break;
+                                    case DW_AT_accessibility:   break; //accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
+                                    case DW_AT_declaration:     is_forward_declaration = form_value.Boolean(); break;
+                                    case DW_AT_allocated:
+                                    case DW_AT_associated:
+                                    case DW_AT_bit_stride:
+                                    case DW_AT_byte_stride:
+                                    case DW_AT_data_location:
+                                    case DW_AT_description:
+                                    case DW_AT_start_scope:
+                                    case DW_AT_visibility:
+                                    case DW_AT_specification:
+                                    case DW_AT_abstract_origin:
+                                    case DW_AT_sibling:
+                                        break;
+                                }
+                            }
+                        }
+
+                        if (is_forward_declaration)
+                        {
+                            type_sp = ParseTypeFromDWO(die, log);
+                            if (type_sp)
+                                return type_sp;
+
+                            DWARFDeclContext die_decl_ctx;
+                            die.GetDWARFDeclContext(die_decl_ctx);
+
+                            type_sp = dwarf->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
+
+                            if (!type_sp)
+                            {
+                                SymbolFileDWARFDebugMap *debug_map_symfile = dwarf->GetDebugMapSymfile();
+                                if (debug_map_symfile)
+                                {
+                                    // We weren't able to find a full declaration in
+                                    // this DWARF, see if we have a declaration anywhere
+                                    // else...
+                                    type_sp = debug_map_symfile->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
+                                }
+                            }
+
+                            if (type_sp)
+                            {
+                                if (log)
+                                {
+                                    dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+                                                                                     "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, complete type is 0x%8.8" PRIx64,
+                                                                                     static_cast<void*>(this),
+                                                                                     die.GetOffset(),
+                                                                                     DW_TAG_value_to_name(tag),
+                                                                                     type_name_cstr,
+                                                                                     type_sp->GetID());
+                                }
+
+                                // We found a real definition for this type elsewhere
+                                // so lets use it and cache the fact that we found
+                                // a complete type for this die
+                                dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get();
+                                clang::DeclContext *defn_decl_ctx = GetCachedClangDeclContextForDIE(
+                                                                                                    dwarf->DebugInfo()->GetDIE(DIERef(type_sp->GetID())));
+                                if (defn_decl_ctx)
+                                    LinkDeclContextToDIE(defn_decl_ctx, die);
+                                return type_sp;
+                            }
+
+                        }
+                        DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", die.GetID(), DW_TAG_value_to_name(tag), type_name_cstr);
+
+                        CompilerType enumerator_clang_type;
+                        clang_type.SetCompilerType (&m_ast, dwarf->GetForwardDeclDieToClangType().lookup (die.GetDIE()));
+                        if (!clang_type)
+                        {
+                            if (encoding_form.IsValid())
+                            {
+                                Type *enumerator_type = dwarf->ResolveTypeUID(DIERef(encoding_form).GetUID());
+                                if (enumerator_type)
+                                    enumerator_clang_type = enumerator_type->GetFullCompilerType ();
+                            }
+
+                            if (!enumerator_clang_type)
+                                enumerator_clang_type = m_ast.GetBuiltinTypeForDWARFEncodingAndBitSize (NULL,
+                                                                                                        DW_ATE_signed,
+                                                                                                        byte_size * 8);
+
+                            clang_type = m_ast.CreateEnumerationType (type_name_cstr,
+                                                                      GetClangDeclContextContainingDIE (die, nullptr),
+                                                                      decl,
+                                                                      enumerator_clang_type);
+                        }
+                        else
+                        {
+                            enumerator_clang_type = m_ast.GetEnumerationIntegerType (clang_type.GetOpaqueQualType());
+                        }
+
+                        LinkDeclContextToDIE(ClangASTContext::GetDeclContextForType(clang_type), die);
+
+                        type_sp.reset( new Type (die.GetID(),
+                                                 dwarf,
+                                                 type_name_const_str,
+                                                 byte_size,
+                                                 NULL,
+                                                 DIERef(encoding_form).GetUID(),
+                                                 Type::eEncodingIsUID,
+                                                 &decl,
+                                                 clang_type,
+                                                 Type::eResolveStateForward));
+
+                        ClangASTContext::StartTagDeclarationDefinition (clang_type);
+                        if (die.HasChildren())
+                        {
+                            SymbolContext cu_sc(die.GetLLDBCompileUnit());
+                            bool is_signed = false;
+                            enumerator_clang_type.IsIntegerType(is_signed);
+                            ParseChildEnumerators(cu_sc, clang_type, is_signed, type_sp->GetByteSize(), die);
+                        }
+                        ClangASTContext::CompleteTagDeclarationDefinition (clang_type);
+                    }
+                }
+                    break;
+
+                case DW_TAG_inlined_subroutine:
+                case DW_TAG_subprogram:
+                case DW_TAG_subroutine_type:
+                {
+                    // Set a bit that lets us know that we are currently parsing this
+                    dwarf->GetDIEToType()[die.GetDIE()] = DIE_IS_BEING_PARSED;
+
+                    DWARFFormValue type_die_form;
+                    bool is_variadic = false;
+                    bool is_inline = false;
+                    bool is_static = false;
+                    bool is_virtual = false;
+                    bool is_explicit = false;
+                    bool is_artificial = false;
+                    DWARFFormValue specification_die_form;
+                    DWARFFormValue abstract_origin_die_form;
+                    dw_offset_t object_pointer_die_offset = DW_INVALID_OFFSET;
+
+                    unsigned type_quals = 0;
+                    clang::StorageClass storage = clang::SC_None;//, Extern, Static, PrivateExtern
+
+
+                    const size_t num_attributes = die.GetAttributes (attributes);
+                    if (num_attributes > 0)
+                    {
+                        uint32_t i;
+                        for (i=0; i<num_attributes; ++i)
+                        {
+                            attr = attributes.AttributeAtIndex(i);
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                            {
+                                switch (attr)
+                                {
+                                    case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+                                    case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
+                                    case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+                                    case DW_AT_name:
+                                        type_name_cstr = form_value.AsCString();
+                                        type_name_const_str.SetCString(type_name_cstr);
+                                        break;
+
+                                    case DW_AT_linkage_name:
+                                    case DW_AT_MIPS_linkage_name:   break; // mangled = form_value.AsCString(&dwarf->get_debug_str_data()); break;
+                                    case DW_AT_type:                type_die_form = form_value; break;
+                                    case DW_AT_accessibility:       accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
+                                    case DW_AT_declaration:         break; // is_forward_declaration = form_value.Boolean(); break;
+                                    case DW_AT_inline:              is_inline = form_value.Boolean(); break;
+                                    case DW_AT_virtuality:          is_virtual = form_value.Boolean();  break;
+                                    case DW_AT_explicit:            is_explicit = form_value.Boolean();  break;
+                                    case DW_AT_artificial:          is_artificial = form_value.Boolean();  break;
+
+
+                                    case DW_AT_external:
+                                        if (form_value.Unsigned())
+                                        {
+                                            if (storage == clang::SC_None)
+                                                storage = clang::SC_Extern;
+                                            else
+                                                storage = clang::SC_PrivateExtern;
+                                        }
+                                        break;
+
+                                    case DW_AT_specification:
+                                        specification_die_form = form_value;
+                                        break;
+
+                                    case DW_AT_abstract_origin:
+                                        abstract_origin_die_form = form_value;
+                                        break;
+
+                                    case DW_AT_object_pointer:
+                                        object_pointer_die_offset = form_value.Reference();
+                                        break;
+
+                                    case DW_AT_allocated:
+                                    case DW_AT_associated:
+                                    case DW_AT_address_class:
+                                    case DW_AT_calling_convention:
+                                    case DW_AT_data_location:
+                                    case DW_AT_elemental:
+                                    case DW_AT_entry_pc:
+                                    case DW_AT_frame_base:
+                                    case DW_AT_high_pc:
+                                    case DW_AT_low_pc:
+                                    case DW_AT_prototyped:
+                                    case DW_AT_pure:
+                                    case DW_AT_ranges:
+                                    case DW_AT_recursive:
+                                    case DW_AT_return_addr:
+                                    case DW_AT_segment:
+                                    case DW_AT_start_scope:
+                                    case DW_AT_static_link:
+                                    case DW_AT_trampoline:
+                                    case DW_AT_visibility:
+                                    case DW_AT_vtable_elem_location:
+                                    case DW_AT_description:
+                                    case DW_AT_sibling:
+                                        break;
+                                }
+                            }
+                        }
+                    }
+
+                    std::string object_pointer_name;
+                    if (object_pointer_die_offset != DW_INVALID_OFFSET)
+                    {
+                        DWARFDIE object_pointer_die = die.GetDIE (object_pointer_die_offset);
+                        if (object_pointer_die)
+                        {
+                            const char *object_pointer_name_cstr = object_pointer_die.GetName();
+                            if (object_pointer_name_cstr)
+                                object_pointer_name = object_pointer_name_cstr;
+                        }
+                    }
+
+                    DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", die.GetID(), DW_TAG_value_to_name(tag), type_name_cstr);
+
+                    CompilerType return_clang_type;
+                    Type *func_type = NULL;
+
+                    if (type_die_form.IsValid())
+                        func_type = dwarf->ResolveTypeUID(DIERef(type_die_form).GetUID());
+
+                    if (func_type)
+                        return_clang_type = func_type->GetForwardCompilerType ();
+                    else
+                        return_clang_type = m_ast.GetBasicType(eBasicTypeVoid);
+
+
+                    std::vector<CompilerType> function_param_types;
+                    std::vector<clang::ParmVarDecl*> function_param_decls;
+
+                    // Parse the function children for the parameters
+
+                    DWARFDIE decl_ctx_die;
+                    clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (die, &decl_ctx_die);
+                    const clang::Decl::Kind containing_decl_kind = containing_decl_ctx->getDeclKind();
+
+                    const bool is_cxx_method = DeclKindIsCXXClass (containing_decl_kind);
+                    // Start off static. This will be set to false in ParseChildParameters(...)
+                    // if we find a "this" parameters as the first parameter
+                    if (is_cxx_method)
+                        is_static = true;
+
+                    if (die.HasChildren())
+                    {
+                        bool skip_artificial = true;
+                        ParseChildParameters (sc,
+                                              containing_decl_ctx,
+                                              die,
+                                              skip_artificial,
+                                              is_static,
+                                              is_variadic,
+                                              function_param_types,
+                                              function_param_decls,
+                                              type_quals);
+                    }
+
+                    // clang_type will get the function prototype clang type after this call
+                    clang_type = m_ast.CreateFunctionType (return_clang_type,
+                                                           function_param_types.data(),
+                                                           function_param_types.size(),
+                                                           is_variadic,
+                                                           type_quals);
+
+                    bool ignore_containing_context = false;
+
+                    if (type_name_cstr)
+                    {
+                        bool type_handled = false;
+                        if (tag == DW_TAG_subprogram ||
+                            tag == DW_TAG_inlined_subroutine)
+                        {
+                            ObjCLanguage::MethodName objc_method (type_name_cstr, true);
+                            if (objc_method.IsValid(true))
+                            {
+                                CompilerType class_opaque_type;
+                                ConstString class_name(objc_method.GetClassName());
+                                if (class_name)
+                                {
+                                    TypeSP complete_objc_class_type_sp (dwarf->FindCompleteObjCDefinitionTypeForDIE (DWARFDIE(), class_name, false));
+
+                                    if (complete_objc_class_type_sp)
+                                    {
+                                        CompilerType type_clang_forward_type = complete_objc_class_type_sp->GetForwardCompilerType ();
+                                        if (ClangASTContext::IsObjCObjectOrInterfaceType(type_clang_forward_type))
+                                            class_opaque_type = type_clang_forward_type;
+                                    }
+                                }
+
+                                if (class_opaque_type)
+                                {
+                                    // If accessibility isn't set to anything valid, assume public for
+                                    // now...
+                                    if (accessibility == eAccessNone)
+                                        accessibility = eAccessPublic;
+
+                                    clang::ObjCMethodDecl *objc_method_decl = m_ast.AddMethodToObjCObjectType (class_opaque_type,
+                                                                                                               type_name_cstr,
+                                                                                                               clang_type,
+                                                                                                               accessibility,
+                                                                                                               is_artificial);
+                                    type_handled = objc_method_decl != NULL;
+                                    if (type_handled)
+                                    {
+                                        LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(objc_method_decl), die);
+                                        m_ast.SetMetadataAsUserID (objc_method_decl, die.GetID());
+                                    }
+                                    else
+                                    {
+                                        dwarf->GetObjectFile()->GetModule()->ReportError ("{0x%8.8x}: invalid Objective-C method 0x%4.4x (%s), please file a bug and attach the file at the start of this error message",
+                                                                                          die.GetOffset(),
+                                                                                          tag,
+                                                                                          DW_TAG_value_to_name(tag));
+                                    }
+                                }
+                            }
+                            else if (is_cxx_method)
+                            {
+                                // Look at the parent of this DIE and see if is is
+                                // a class or struct and see if this is actually a
+                                // C++ method
+                                Type *class_type = dwarf->ResolveType (decl_ctx_die);
+                                if (class_type)
+                                {
+                                    bool alternate_defn = false;
+                                    if (class_type->GetID() != decl_ctx_die.GetID() || decl_ctx_die.GetContainingDWOModuleDIE())
+                                    {
+                                        alternate_defn = true;
+
+                                        // We uniqued the parent class of this function to another class
+                                        // so we now need to associate all dies under "decl_ctx_die" to
+                                        // DIEs in the DIE for "class_type"...
+                                        SymbolFileDWARF *class_symfile = NULL;
+                                        DWARFDIE class_type_die;
+
+                                        SymbolFileDWARFDebugMap *debug_map_symfile = dwarf->GetDebugMapSymfile();
+                                        if (debug_map_symfile)
+                                        {
+                                            class_symfile = debug_map_symfile->GetSymbolFileByOSOIndex(SymbolFileDWARFDebugMap::GetOSOIndexFromUserID(class_type->GetID()));
+                                            class_type_die = class_symfile->DebugInfo()->GetDIE (DIERef(class_type->GetID()));
+                                        }
+                                        else
+                                        {
+                                            class_symfile = dwarf;
+                                            class_type_die = dwarf->DebugInfo()->GetDIE (DIERef(class_type->GetID()));
+                                        }
+                                        if (class_type_die)
+                                        {
+                                            DWARFDIECollection failures;
+
+                                            CopyUniqueClassMethodTypes (decl_ctx_die,
+                                                                        class_type_die,
+                                                                        class_type,
+                                                                        failures);
+
+                                            // FIXME do something with these failures that's smarter than
+                                            // just dropping them on the ground.  Unfortunately classes don't
+                                            // like having stuff added to them after their definitions are
+                                            // complete...
+
+                                            type_ptr = dwarf->GetDIEToType()[die.GetDIE()];
+                                            if (type_ptr && type_ptr != DIE_IS_BEING_PARSED)
+                                            {
+                                                type_sp = type_ptr->shared_from_this();
+                                                break;
+                                            }
+                                        }
+                                    }
+
+                                    if (specification_die_form.IsValid())
+                                    {
+                                        // We have a specification which we are going to base our function
+                                        // prototype off of, so we need this type to be completed so that the
+                                        // m_die_to_decl_ctx for the method in the specification has a valid
+                                        // clang decl context.
+                                        class_type->GetForwardCompilerType ();
+                                        // If we have a specification, then the function type should have been
+                                        // made with the specification and not with this die.
+                                        DWARFDIE spec_die = dwarf->DebugInfo()->GetDIE(DIERef(specification_die_form));
+                                        clang::DeclContext *spec_clang_decl_ctx = GetClangDeclContextForDIE (spec_die);
+                                        if (spec_clang_decl_ctx)
+                                        {
+                                            LinkDeclContextToDIE(spec_clang_decl_ctx, die);
+                                        }
+                                        else
+                                        {
+                                            dwarf->GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64 ": DW_AT_specification(0x%8.8" PRIx64 ") has no decl\n",
+                                                                                                die.GetID(),
+                                                                                                specification_die_form.Reference());
+                                        }
+                                        type_handled = true;
+                                    }
+                                    else if (abstract_origin_die_form.IsValid())
+                                    {
+                                        // We have a specification which we are going to base our function
+                                        // prototype off of, so we need this type to be completed so that the
+                                        // m_die_to_decl_ctx for the method in the abstract origin has a valid
+                                        // clang decl context.
+                                        class_type->GetForwardCompilerType ();
+
+                                        DWARFDIE abs_die = dwarf->DebugInfo()->GetDIE (DIERef(abstract_origin_die_form));
+                                        clang::DeclContext *abs_clang_decl_ctx = GetClangDeclContextForDIE (abs_die);
+                                        if (abs_clang_decl_ctx)
+                                        {
+                                            LinkDeclContextToDIE (abs_clang_decl_ctx, die);
+                                        }
+                                        else
+                                        {
+                                            dwarf->GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64 ": DW_AT_abstract_origin(0x%8.8" PRIx64 ") has no decl\n",
+                                                                                                die.GetID(),
+                                                                                                abstract_origin_die_form.Reference());
+                                        }
+                                        type_handled = true;
+                                    }
+                                    else
+                                    {
+                                        CompilerType class_opaque_type = class_type->GetForwardCompilerType ();
+                                        if (ClangASTContext::IsCXXClassType(class_opaque_type))
+                                        {
+                                            if (class_opaque_type.IsBeingDefined () || alternate_defn)
+                                            {
+                                                if (!is_static && !die.HasChildren())
+                                                {
+                                                    // We have a C++ member function with no children (this pointer!)
+                                                    // and clang will get mad if we try and make a function that isn't
+                                                    // well formed in the DWARF, so we will just skip it...
+                                                    type_handled = true;
+                                                }
+                                                else
+                                                {
+                                                    bool add_method = true;
+                                                    if (alternate_defn)
+                                                    {
+                                                        // If an alternate definition for the class exists, then add the method only if an
+                                                        // equivalent is not already present.
+                                                        clang::CXXRecordDecl *record_decl = m_ast.GetAsCXXRecordDecl(class_opaque_type.GetOpaqueQualType());
+                                                        if (record_decl)
+                                                        {
+                                                            for (auto method_iter = record_decl->method_begin();
+                                                                 method_iter != record_decl->method_end();
+                                                                 method_iter++)
+                                                            {
+                                                                clang::CXXMethodDecl *method_decl = *method_iter;
+                                                                if (method_decl->getNameInfo().getAsString() == std::string(type_name_cstr))
+                                                                {
+                                                                    if (method_decl->getType() == ClangASTContext::GetQualType(clang_type))
+                                                                    {
+                                                                        add_method = false;
+                                                                        LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(method_decl), die);
+                                                                        type_handled = true;
+
+                                                                        break;
+                                                                    }
+                                                                }
+                                                            }
+                                                        }
+                                                    }
+
+                                                    if (add_method)
+                                                    {
+                                                        // REMOVE THE CRASH DESCRIPTION BELOW
+                                                        Host::SetCrashDescriptionWithFormat ("SymbolFileDWARF::ParseType() is adding a method %s to class %s in DIE 0x%8.8" PRIx64 " from %s",
+                                                                                             type_name_cstr,
+                                                                                             class_type->GetName().GetCString(),
+                                                                                             die.GetID(),
+                                                                                             dwarf->GetObjectFile()->GetFileSpec().GetPath().c_str());
+
+                                                        const bool is_attr_used = false;
+                                                        // Neither GCC 4.2 nor clang++ currently set a valid accessibility
+                                                        // in the DWARF for C++ methods... Default to public for now...
+                                                        if (accessibility == eAccessNone)
+                                                            accessibility = eAccessPublic;
+
+                                                        clang::CXXMethodDecl *cxx_method_decl;
+                                                        cxx_method_decl = m_ast.AddMethodToCXXRecordType (class_opaque_type.GetOpaqueQualType(),
+                                                                                                          type_name_cstr,
+                                                                                                          clang_type,
+                                                                                                          accessibility,
+                                                                                                          is_virtual,
+                                                                                                          is_static,
+                                                                                                          is_inline,
+                                                                                                          is_explicit,
+                                                                                                          is_attr_used,
+                                                                                                          is_artificial);
+
+                                                        type_handled = cxx_method_decl != NULL;
+
+                                                        if (type_handled)
+                                                        {
+                                                            LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(cxx_method_decl), die);
+
+                                                            Host::SetCrashDescription (NULL);
+
+                                                            ClangASTMetadata metadata;
+                                                            metadata.SetUserID(die.GetID());
+
+                                                            if (!object_pointer_name.empty())
+                                                            {
+                                                                metadata.SetObjectPtrName(object_pointer_name.c_str());
+                                                                if (log)
+                                                                    log->Printf ("Setting object pointer name: %s on method object %p.\n",
+                                                                                 object_pointer_name.c_str(),
+                                                                                 static_cast<void*>(cxx_method_decl));
+                                                            }
+                                                            m_ast.SetMetadata (cxx_method_decl, metadata);
+                                                        }
+                                                        else
+                                                        {
+                                                            ignore_containing_context = true;
+                                                        }
+                                                    }
+                                                }
+                                            }
+                                            else
+                                            {
+                                                // We were asked to parse the type for a method in a class, yet the
+                                                // class hasn't been asked to complete itself through the
+                                                // clang::ExternalASTSource protocol, so we need to just have the
+                                                // class complete itself and do things the right way, then our
+                                                // DIE should then have an entry in the dwarf->GetDIEToType() map. First
+                                                // we need to modify the dwarf->GetDIEToType() so it doesn't think we are
+                                                // trying to parse this DIE anymore...
+                                                dwarf->GetDIEToType()[die.GetDIE()] = NULL;
+
+                                                // Now we get the full type to force our class type to complete itself
+                                                // using the clang::ExternalASTSource protocol which will parse all
+                                                // base classes and all methods (including the method for this DIE).
+                                                class_type->GetFullCompilerType ();
+
+                                                // The type for this DIE should have been filled in the function call above
+                                                type_ptr = dwarf->GetDIEToType()[die.GetDIE()];
+                                                if (type_ptr && type_ptr != DIE_IS_BEING_PARSED)
+                                                {
+                                                    type_sp = type_ptr->shared_from_this();
+                                                    break;
+                                                }
+
+                                                // FIXME This is fixing some even uglier behavior but we really need to
+                                                // uniq the methods of each class as well as the class itself.
+                                                // <rdar://problem/11240464>
+                                                type_handled = true;
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                        }
+
+                        if (!type_handled)
+                        {
+                            // We just have a function that isn't part of a class
+                            clang::FunctionDecl *function_decl = m_ast.CreateFunctionDeclaration (ignore_containing_context ? m_ast.GetTranslationUnitDecl() : containing_decl_ctx,
+                                                                                                  type_name_cstr,
+                                                                                                  clang_type,
+                                                                                                  storage,
+                                                                                                  is_inline);
+
+                            //                            if (template_param_infos.GetSize() > 0)
+                            //                            {
+                            //                                clang::FunctionTemplateDecl *func_template_decl = CreateFunctionTemplateDecl (containing_decl_ctx,
+                            //                                                                                                              function_decl,
+                            //                                                                                                              type_name_cstr,
+                            //                                                                                                              template_param_infos);
+                            //
+                            //                                CreateFunctionTemplateSpecializationInfo (function_decl,
+                            //                                                                          func_template_decl,
+                            //                                                                          template_param_infos);
+                            //                            }
+                            // Add the decl to our DIE to decl context map
+                            assert (function_decl);
+                            LinkDeclContextToDIE(function_decl, die);
+                            if (!function_param_decls.empty())
+                                m_ast.SetFunctionParameters (function_decl,
+                                                             &function_param_decls.front(),
+                                                             function_param_decls.size());
+
+                            ClangASTMetadata metadata;
+                            metadata.SetUserID(die.GetID());
+
+                            if (!object_pointer_name.empty())
+                            {
+                                metadata.SetObjectPtrName(object_pointer_name.c_str());
+                                if (log)
+                                    log->Printf ("Setting object pointer name: %s on function object %p.",
+                                                 object_pointer_name.c_str(),
+                                                 static_cast<void*>(function_decl));
+                            }
+                            m_ast.SetMetadata (function_decl, metadata);
+                        }
+                    }
+                    type_sp.reset( new Type (die.GetID(),
+                                             dwarf,
+                                             type_name_const_str,
+                                             0,
+                                             NULL,
+                                             LLDB_INVALID_UID,
+                                             Type::eEncodingIsUID,
+                                             &decl,
+                                             clang_type,
+                                             Type::eResolveStateFull));
+                    assert(type_sp.get());
+                }
+                    break;
+
+                case DW_TAG_array_type:
+                {
+                    // Set a bit that lets us know that we are currently parsing this
+                    dwarf->GetDIEToType()[die.GetDIE()] = DIE_IS_BEING_PARSED;
+
+                    DWARFFormValue type_die_form;
+                    int64_t first_index = 0;
+                    uint32_t byte_stride = 0;
+                    uint32_t bit_stride = 0;
+                    bool is_vector = false;
+                    const size_t num_attributes = die.GetAttributes (attributes);
+
+                    if (num_attributes > 0)
+                    {
+                        uint32_t i;
+                        for (i=0; i<num_attributes; ++i)
+                        {
+                            attr = attributes.AttributeAtIndex(i);
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                            {
+                                switch (attr)
+                                {
+                                    case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+                                    case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
+                                    case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+                                    case DW_AT_name:
+                                        type_name_cstr = form_value.AsCString();
+                                        type_name_const_str.SetCString(type_name_cstr);
+                                        break;
+
+                                    case DW_AT_type:            type_die_form = form_value; break;
+                                    case DW_AT_byte_size:       break; // byte_size = form_value.Unsigned(); break;
+                                    case DW_AT_byte_stride:     byte_stride = form_value.Unsigned(); break;
+                                    case DW_AT_bit_stride:      bit_stride = form_value.Unsigned(); break;
+                                    case DW_AT_GNU_vector:      is_vector = form_value.Boolean(); break;
+                                    case DW_AT_accessibility:   break; // accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
+                                    case DW_AT_declaration:     break; // is_forward_declaration = form_value.Boolean(); break;
+                                    case DW_AT_allocated:
+                                    case DW_AT_associated:
+                                    case DW_AT_data_location:
+                                    case DW_AT_description:
+                                    case DW_AT_ordering:
+                                    case DW_AT_start_scope:
+                                    case DW_AT_visibility:
+                                    case DW_AT_specification:
+                                    case DW_AT_abstract_origin:
+                                    case DW_AT_sibling:
+                                        break;
+                                }
+                            }
+                        }
+
+                        DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", die.GetID(), DW_TAG_value_to_name(tag), type_name_cstr);
+
+                        Type *element_type = dwarf->ResolveTypeUID(DIERef(type_die_form).GetUID());
+
+                        if (element_type)
+                        {
+                            std::vector<uint64_t> element_orders;
+                            ParseChildArrayInfo(sc, die, first_index, element_orders, byte_stride, bit_stride);
+                            if (byte_stride == 0 && bit_stride == 0)
+                                byte_stride = element_type->GetByteSize();
+                            CompilerType array_element_type = element_type->GetForwardCompilerType ();
+                            uint64_t array_element_bit_stride = byte_stride * 8 + bit_stride;
+                            if (element_orders.size() > 0)
+                            {
+                                uint64_t num_elements = 0;
+                                std::vector<uint64_t>::const_reverse_iterator pos;
+                                std::vector<uint64_t>::const_reverse_iterator end = element_orders.rend();
+                                for (pos = element_orders.rbegin(); pos != end; ++pos)
+                                {
+                                    num_elements = *pos;
+                                    clang_type = m_ast.CreateArrayType (array_element_type,
+                                                                        num_elements,
+                                                                        is_vector);
+                                    array_element_type = clang_type;
+                                    array_element_bit_stride = num_elements ?
+                                    array_element_bit_stride * num_elements :
+                                    array_element_bit_stride;
+                                }
+                            }
+                            else
+                            {
+                                clang_type = m_ast.CreateArrayType (array_element_type, 0, is_vector);
+                            }
+                            ConstString empty_name;
+                            type_sp.reset( new Type (die.GetID(),
+                                                     dwarf,
+                                                     empty_name,
+                                                     array_element_bit_stride / 8,
+                                                     NULL,
+                                                     DIERef(type_die_form).GetUID(),
+                                                     Type::eEncodingIsUID,
+                                                     &decl,
+                                                     clang_type,
+                                                     Type::eResolveStateFull));
+                            type_sp->SetEncodingType (element_type);
+                        }
+                    }
+                }
+                    break;
+
+                case DW_TAG_ptr_to_member_type:
+                {
+                    DWARFFormValue type_die_form;
+                    DWARFFormValue containing_type_die_form;
+
+                    const size_t num_attributes = die.GetAttributes (attributes);
+
+                    if (num_attributes > 0) {
+                        uint32_t i;
+                        for (i=0; i<num_attributes; ++i)
+                        {
+                            attr = attributes.AttributeAtIndex(i);
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                            {
+                                switch (attr)
+                                {
+                                    case DW_AT_type:
+                                        type_die_form = form_value; break;
+                                    case DW_AT_containing_type:
+                                        containing_type_die_form = form_value; break;
+                                }
+                            }
+                        }
+
+                        Type *pointee_type = dwarf->ResolveTypeUID(DIERef(type_die_form).GetUID());
+                        Type *class_type = dwarf->ResolveTypeUID(DIERef(containing_type_die_form).GetUID());
+
+                        CompilerType pointee_clang_type = pointee_type->GetForwardCompilerType ();
+                        CompilerType class_clang_type = class_type->GetLayoutCompilerType ();
+                        
+                        clang_type = ClangASTContext::CreateMemberPointerType(class_clang_type, pointee_clang_type);
+
+                        byte_size = clang_type.GetByteSize(nullptr);
+
+                        type_sp.reset(new Type(die.GetID(), dwarf, type_name_const_str, byte_size, NULL,
+                                               LLDB_INVALID_UID, Type::eEncodingIsUID, NULL, clang_type,
+                                               Type::eResolveStateForward));
+                    }
+
+                    break;
+                }
+                default:
+                    dwarf->GetObjectFile()->GetModule()->ReportError ("{0x%8.8x}: unhandled type tag 0x%4.4x (%s), please file a bug and attach the file at the start of this error message",
+                                                                      die.GetOffset(),
+                                                                      tag,
+                                                                      DW_TAG_value_to_name(tag));
+                    break;
+            }
+
+            if (type_sp.get())
+            {
+                DWARFDIE sc_parent_die = SymbolFileDWARF::GetParentSymbolContextDIE(die);
+                dw_tag_t sc_parent_tag = sc_parent_die.Tag();
+
+                SymbolContextScope * symbol_context_scope = NULL;
+                if (sc_parent_tag == DW_TAG_compile_unit)
+                {
+                    symbol_context_scope = sc.comp_unit;
+                }
+                else if (sc.function != NULL && sc_parent_die)
+                {
+                    symbol_context_scope = sc.function->GetBlock(true).FindBlockByID(sc_parent_die.GetID());
+                    if (symbol_context_scope == NULL)
+                        symbol_context_scope = sc.function;
+                }
+
+                if (symbol_context_scope != NULL)
+                {
+                    type_sp->SetSymbolContextScope(symbol_context_scope);
+                }
+
+                // We are ready to put this type into the uniqued list up at the module level
+                type_list->Insert (type_sp);
+
+                dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get();
+            }
+        }
+        else if (type_ptr != DIE_IS_BEING_PARSED)
+        {
+            type_sp = type_ptr->shared_from_this();
+        }
+    }
+    return type_sp;
+}
+
+// DWARF parsing functions
+
+class DWARFASTParserClang::DelayedAddObjCClassProperty
+{
+public:
+    DelayedAddObjCClassProperty(const CompilerType     &class_opaque_type,
+                                const char             *property_name,
+                                const CompilerType     &property_opaque_type,  // The property type is only required if you don't have an ivar decl
+                                clang::ObjCIvarDecl    *ivar_decl,
+                                const char             *property_setter_name,
+                                const char             *property_getter_name,
+                                uint32_t                property_attributes,
+                                const ClangASTMetadata *metadata) :
+    m_class_opaque_type     (class_opaque_type),
+    m_property_name         (property_name),
+    m_property_opaque_type  (property_opaque_type),
+    m_ivar_decl             (ivar_decl),
+    m_property_setter_name  (property_setter_name),
+    m_property_getter_name  (property_getter_name),
+    m_property_attributes   (property_attributes)
+    {
+        if (metadata != NULL)
+        {
+            m_metadata_ap.reset(new ClangASTMetadata());
+            *m_metadata_ap = *metadata;
+        }
+    }
+
+    DelayedAddObjCClassProperty (const DelayedAddObjCClassProperty &rhs)
+    {
+        *this = rhs;
+    }
+
+    DelayedAddObjCClassProperty& operator= (const DelayedAddObjCClassProperty &rhs)
+    {
+        m_class_opaque_type    = rhs.m_class_opaque_type;
+        m_property_name        = rhs.m_property_name;
+        m_property_opaque_type = rhs.m_property_opaque_type;
+        m_ivar_decl            = rhs.m_ivar_decl;
+        m_property_setter_name = rhs.m_property_setter_name;
+        m_property_getter_name = rhs.m_property_getter_name;
+        m_property_attributes  = rhs.m_property_attributes;
+
+        if (rhs.m_metadata_ap.get())
+        {
+            m_metadata_ap.reset (new ClangASTMetadata());
+            *m_metadata_ap = *rhs.m_metadata_ap;
+        }
+        return *this;
+    }
+
+    bool
+    Finalize()
+    {
+        return ClangASTContext::AddObjCClassProperty (m_class_opaque_type,
+                                                      m_property_name,
+                                                      m_property_opaque_type,
+                                                      m_ivar_decl,
+                                                      m_property_setter_name,
+                                                      m_property_getter_name,
+                                                      m_property_attributes,
+                                                      m_metadata_ap.get());
+    }
+
+private:
+    CompilerType            m_class_opaque_type;
+    const char             *m_property_name;
+    CompilerType            m_property_opaque_type;
+    clang::ObjCIvarDecl    *m_ivar_decl;
+    const char             *m_property_setter_name;
+    const char             *m_property_getter_name;
+    uint32_t                m_property_attributes;
+    std::unique_ptr<ClangASTMetadata> m_metadata_ap;
+};
+
+bool
+DWARFASTParserClang::ParseTemplateDIE (const DWARFDIE &die,
+                                       ClangASTContext::TemplateParameterInfos &template_param_infos)
+{
+    const dw_tag_t tag = die.Tag();
+
+    switch (tag)
+    {
+        case DW_TAG_template_type_parameter:
+        case DW_TAG_template_value_parameter:
+        {
+            DWARFAttributes attributes;
+            const size_t num_attributes = die.GetAttributes (attributes);
+            const char *name = NULL;
+            Type *lldb_type = NULL;
+            CompilerType clang_type;
+            uint64_t uval64 = 0;
+            bool uval64_valid = false;
+            if (num_attributes > 0)
+            {
+                DWARFFormValue form_value;
+                for (size_t i=0; i<num_attributes; ++i)
+                {
+                    const dw_attr_t attr = attributes.AttributeAtIndex(i);
+
+                    switch (attr)
+                    {
+                        case DW_AT_name:
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                                name = form_value.AsCString();
+                            break;
+
+                        case DW_AT_type:
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                            {
+                                lldb_type = die.ResolveTypeUID(DIERef(form_value).GetUID());
+                                if (lldb_type)
+                                    clang_type = lldb_type->GetForwardCompilerType ();
+                            }
+                            break;
+
+                        case DW_AT_const_value:
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                            {
+                                uval64_valid = true;
+                                uval64 = form_value.Unsigned();
+                            }
+                            break;
+                        default:
+                            break;
+                    }
+                }
+
+                clang::ASTContext *ast = m_ast.getASTContext();
+                if (!clang_type)
+                    clang_type = m_ast.GetBasicType(eBasicTypeVoid);
+
+                if (clang_type)
+                {
+                    bool is_signed = false;
+                    if (name && name[0])
+                        template_param_infos.names.push_back(name);
+                    else
+                        template_param_infos.names.push_back(NULL);
+
+                    if (tag == DW_TAG_template_value_parameter &&
+                        lldb_type != NULL &&
+                        clang_type.IsIntegerType (is_signed) &&
+                        uval64_valid)
+                    {
+                        llvm::APInt apint (lldb_type->GetByteSize() * 8, uval64, is_signed);
+                        template_param_infos.args.push_back (clang::TemplateArgument (*ast,
+                                                                                      llvm::APSInt(apint),
+                                                                                      ClangASTContext::GetQualType(clang_type)));
+                    }
+                    else
+                    {
+                        template_param_infos.args.push_back (clang::TemplateArgument (ClangASTContext::GetQualType(clang_type)));
+                    }
+                }
+                else
+                {
+                    return false;
+                }
+
+            }
+        }
+            return true;
+
+        default:
+            break;
+    }
+    return false;
+}
+
+bool
+DWARFASTParserClang::ParseTemplateParameterInfos (const DWARFDIE &parent_die,
+                                                  ClangASTContext::TemplateParameterInfos &template_param_infos)
+{
+
+    if (!parent_die)
+        return false;
+
+    Args template_parameter_names;
+    for (DWARFDIE die = parent_die.GetFirstChild();
+         die.IsValid();
+         die = die.GetSibling())
+    {
+        const dw_tag_t tag = die.Tag();
+
+        switch (tag)
+        {
+            case DW_TAG_template_type_parameter:
+            case DW_TAG_template_value_parameter:
+                ParseTemplateDIE (die, template_param_infos);
+                break;
+
+            default:
+                break;
+        }
+    }
+    if (template_param_infos.args.empty())
+        return false;
+    return template_param_infos.args.size() == template_param_infos.names.size();
+}
+
+bool
+DWARFASTParserClang::CanCompleteType (const lldb_private::CompilerType &compiler_type)
+{
+    if (m_clang_ast_importer_ap)
+        return ClangASTContext::CanImport(compiler_type, GetClangASTImporter());
+    else
+        return false;
+}
+
+bool
+DWARFASTParserClang::CompleteType (const lldb_private::CompilerType &compiler_type)
+{
+    if (CanCompleteType(compiler_type))
+    {
+        if (ClangASTContext::Import(compiler_type, GetClangASTImporter()))
+        {
+            ClangASTContext::CompleteTagDeclarationDefinition(compiler_type);
+            return true;
+        }
+        else
+        {
+            ClangASTContext::SetHasExternalStorage (compiler_type.GetOpaqueQualType(), false);
+        }
+    }
+    return false;
+}
+
+bool
+DWARFASTParserClang::CompleteTypeFromDWARF (const DWARFDIE &die,
+                                            lldb_private::Type *type,
+                                            CompilerType &clang_type)
+{
+    // Disable external storage for this type so we don't get anymore
+    // clang::ExternalASTSource queries for this type.
+    m_ast.SetHasExternalStorage (clang_type.GetOpaqueQualType(), false);
+
+    if (!die)
+        return false;
+
+    const dw_tag_t tag = die.Tag();
+
+    SymbolFileDWARF *dwarf = die.GetDWARF();
+
+    Log *log = nullptr; // (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO|DWARF_LOG_TYPE_COMPLETION));
+    if (log)
+        dwarf->GetObjectFile()->GetModule()->LogMessageVerboseBacktrace (log,
+                                                                         "0x%8.8" PRIx64 ": %s '%s' resolving forward declaration...",
+                                                                         die.GetID(),
+                                                                         die.GetTagAsCString(),
+                                                                         type->GetName().AsCString());
+    assert (clang_type);
+    DWARFAttributes attributes;
+    switch (tag)
+    {
+        case DW_TAG_structure_type:
+        case DW_TAG_union_type:
+        case DW_TAG_class_type:
+        {
+            LayoutInfo layout_info;
+
+            {
+                if (die.HasChildren())
+                {
+                    LanguageType class_language = eLanguageTypeUnknown;
+                    if (ClangASTContext::IsObjCObjectOrInterfaceType(clang_type))
+                    {
+                        class_language = eLanguageTypeObjC;
+                        // For objective C we don't start the definition when
+                        // the class is created.
+                        ClangASTContext::StartTagDeclarationDefinition (clang_type);
+                    }
+
+                    int tag_decl_kind = -1;
+                    AccessType default_accessibility = eAccessNone;
+                    if (tag == DW_TAG_structure_type)
+                    {
+                        tag_decl_kind = clang::TTK_Struct;
+                        default_accessibility = eAccessPublic;
+                    }
+                    else if (tag == DW_TAG_union_type)
+                    {
+                        tag_decl_kind = clang::TTK_Union;
+                        default_accessibility = eAccessPublic;
+                    }
+                    else if (tag == DW_TAG_class_type)
+                    {
+                        tag_decl_kind = clang::TTK_Class;
+                        default_accessibility = eAccessPrivate;
+                    }
+
+                    SymbolContext sc(die.GetLLDBCompileUnit());
+                    std::vector<clang::CXXBaseSpecifier *> base_classes;
+                    std::vector<int> member_accessibilities;
+                    bool is_a_class = false;
+                    // Parse members and base classes first
+                    DWARFDIECollection member_function_dies;
+
+                    DelayedPropertyList delayed_properties;
+                    ParseChildMembers (sc,
+                                       die,
+                                       clang_type,
+                                       class_language,
+                                       base_classes,
+                                       member_accessibilities,
+                                       member_function_dies,
+                                       delayed_properties,
+                                       default_accessibility,
+                                       is_a_class,
+                                       layout_info);
+
+                    // Now parse any methods if there were any...
+                    size_t num_functions = member_function_dies.Size();
+                    if (num_functions > 0)
+                    {
+                        for (size_t i=0; i<num_functions; ++i)
+                        {
+                            dwarf->ResolveType(member_function_dies.GetDIEAtIndex(i));
+                        }
+                    }
+
+                    if (class_language == eLanguageTypeObjC)
+                    {
+                        ConstString class_name (clang_type.GetTypeName());
+                        if (class_name)
+                        {
+                            DIEArray method_die_offsets;
+                            dwarf->GetObjCMethodDIEOffsets(class_name, method_die_offsets);
+
+                            if (!method_die_offsets.empty())
+                            {
+                                DWARFDebugInfo* debug_info = dwarf->DebugInfo();
+
+                                const size_t num_matches = method_die_offsets.size();
+                                for (size_t i=0; i<num_matches; ++i)
+                                {
+                                    const DIERef& die_ref = method_die_offsets[i];
+                                    DWARFDIE method_die = debug_info->GetDIE (die_ref);
+
+                                    if (method_die)
+                                        method_die.ResolveType ();
+                                }
+                            }
+
+                            for (DelayedPropertyList::iterator pi = delayed_properties.begin(), pe = delayed_properties.end();
+                                 pi != pe;
+                                 ++pi)
+                                pi->Finalize();
+                        }
+                    }
+
+                    // If we have a DW_TAG_structure_type instead of a DW_TAG_class_type we
+                    // need to tell the clang type it is actually a class.
+                    if (class_language != eLanguageTypeObjC)
+                    {
+                        if (is_a_class && tag_decl_kind != clang::TTK_Class)
+                            m_ast.SetTagTypeKind (ClangASTContext::GetQualType(clang_type), clang::TTK_Class);
+                    }
+
+                    // Since DW_TAG_structure_type gets used for both classes
+                    // and structures, we may need to set any DW_TAG_member
+                    // fields to have a "private" access if none was specified.
+                    // When we parsed the child members we tracked that actual
+                    // accessibility value for each DW_TAG_member in the
+                    // "member_accessibilities" array. If the value for the
+                    // member is zero, then it was set to the "default_accessibility"
+                    // which for structs was "public". Below we correct this
+                    // by setting any fields to "private" that weren't correctly
+                    // set.
+                    if (is_a_class && !member_accessibilities.empty())
+                    {
+                        // This is a class and all members that didn't have
+                        // their access specified are private.
+                        m_ast.SetDefaultAccessForRecordFields (m_ast.GetAsRecordDecl(clang_type),
+                                                               eAccessPrivate,
+                                                               &member_accessibilities.front(),
+                                                               member_accessibilities.size());
+                    }
+
+                    if (!base_classes.empty())
+                    {
+                        // Make sure all base classes refer to complete types and not
+                        // forward declarations. If we don't do this, clang will crash
+                        // with an assertion in the call to clang_type.SetBaseClassesForClassType()
+                        for (auto &base_class : base_classes)
+                        {
+                            clang::TypeSourceInfo *type_source_info = base_class->getTypeSourceInfo();
+                            if (type_source_info)
+                            {
+                                CompilerType base_class_type (&m_ast, type_source_info->getType().getAsOpaquePtr());
+                                if (base_class_type.GetCompleteType() == false)
+                                {
+                                    auto module = dwarf->GetObjectFile()->GetModule();
+                                    module->ReportError (
+                                        ":: Class '%s' has a base class '%s' which does not have a complete definition.",
+                                        die.GetName(),
+                                        base_class_type.GetTypeName().GetCString());
+                                    if (die.GetCU()->GetProducer() == DWARFCompileUnit::eProducerClang)
+                                         module->ReportError (":: Try compiling the source file with -fno-limit-debug-info.");
+
+                                    // We have no choice other than to pretend that the base class
+                                    // is complete. If we don't do this, clang will crash when we
+                                    // call setBases() inside of "clang_type.SetBaseClassesForClassType()"
+                                    // below. Since we provide layout assistance, all ivars in this
+                                    // class and other classes will be fine, this is the best we can do
+                                    // short of crashing.
+                                    ClangASTContext::StartTagDeclarationDefinition (base_class_type);
+                                    ClangASTContext::CompleteTagDeclarationDefinition (base_class_type);
+                                }
+                            }
+                        }
+                        m_ast.SetBaseClassesForClassType (clang_type.GetOpaqueQualType(),
+                                                          &base_classes.front(),
+                                                          base_classes.size());
+
+                        // Clang will copy each CXXBaseSpecifier in "base_classes"
+                        // so we have to free them all.
+                        ClangASTContext::DeleteBaseClassSpecifiers (&base_classes.front(),
+                                                                    base_classes.size());
+                    }
+                }
+            }
+
+            ClangASTContext::BuildIndirectFields (clang_type);
+            ClangASTContext::CompleteTagDeclarationDefinition (clang_type);
+
+            if (!layout_info.field_offsets.empty() ||
+                !layout_info.base_offsets.empty()  ||
+                !layout_info.vbase_offsets.empty() )
+            {
+                if (type)
+                    layout_info.bit_size = type->GetByteSize() * 8;
+                if (layout_info.bit_size == 0)
+                    layout_info.bit_size = die.GetAttributeValueAsUnsigned(DW_AT_byte_size, 0) * 8;
+
+                clang::CXXRecordDecl *record_decl = m_ast.GetAsCXXRecordDecl(clang_type.GetOpaqueQualType());
+                if (record_decl)
+                {
+                    if (log)
+                    {
+                        ModuleSP module_sp = dwarf->GetObjectFile()->GetModule();
+
+                        if (module_sp)
+                        {
+                            module_sp->LogMessage (log,
+                                                   "ClangASTContext::CompleteTypeFromDWARF (clang_type = %p) caching layout info for record_decl = %p, bit_size = %" PRIu64 ", alignment = %" PRIu64 ", field_offsets[%u], base_offsets[%u], vbase_offsets[%u])",
+                                                   static_cast<void*>(clang_type.GetOpaqueQualType()),
+                                                   static_cast<void*>(record_decl),
+                                                   layout_info.bit_size,
+                                                   layout_info.alignment,
+                                                   static_cast<uint32_t>(layout_info.field_offsets.size()),
+                                                   static_cast<uint32_t>(layout_info.base_offsets.size()),
+                                                   static_cast<uint32_t>(layout_info.vbase_offsets.size()));
+
+                            uint32_t idx;
+                            {
+                                llvm::DenseMap<const clang::FieldDecl *, uint64_t>::const_iterator pos,
+                                end = layout_info.field_offsets.end();
+                                for (idx = 0, pos = layout_info.field_offsets.begin(); pos != end; ++pos, ++idx)
+                                {
+                                    module_sp->LogMessage(log,
+                                                          "ClangASTContext::CompleteTypeFromDWARF (clang_type = %p) field[%u] = { bit_offset=%u, name='%s' }",
+                                                          static_cast<void *>(clang_type.GetOpaqueQualType()),
+                                                          idx,
+                                                          static_cast<uint32_t>(pos->second),
+                                                          pos->first->getNameAsString().c_str());
+                                }
+                            }
+
+                            {
+                                llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator base_pos,
+                                base_end = layout_info.base_offsets.end();
+                                for (idx = 0, base_pos = layout_info.base_offsets.begin(); base_pos != base_end; ++base_pos, ++idx)
+                                {
+                                    module_sp->LogMessage(log,
+                                                          "ClangASTContext::CompleteTypeFromDWARF (clang_type = %p) base[%u] = { byte_offset=%u, name='%s' }",
+                                                          clang_type.GetOpaqueQualType(), idx, (uint32_t)base_pos->second.getQuantity(),
+                                                          base_pos->first->getNameAsString().c_str());
+                                }
+                            }
+                            {
+                                llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator vbase_pos,
+                                vbase_end = layout_info.vbase_offsets.end();
+                                for (idx = 0, vbase_pos = layout_info.vbase_offsets.begin(); vbase_pos != vbase_end; ++vbase_pos, ++idx)
+                                {
+                                    module_sp->LogMessage(log,
+                                                          "ClangASTContext::CompleteTypeFromDWARF (clang_type = %p) vbase[%u] = { byte_offset=%u, name='%s' }",
+                                                          static_cast<void *>(clang_type.GetOpaqueQualType()), idx,
+                                                          static_cast<uint32_t>(vbase_pos->second.getQuantity()),
+                                                          vbase_pos->first->getNameAsString().c_str());
+                                }
+                            }
+
+                        }
+                    }
+                    m_record_decl_to_layout_map.insert(std::make_pair(record_decl, layout_info));
+                }
+            }
+        }
+
+            return (bool)clang_type;
+
+        case DW_TAG_enumeration_type:
+            ClangASTContext::StartTagDeclarationDefinition (clang_type);
+            if (die.HasChildren())
+            {
+                SymbolContext sc(die.GetLLDBCompileUnit());
+                bool is_signed = false;
+                clang_type.IsIntegerType(is_signed);
+                ParseChildEnumerators(sc, clang_type, is_signed, type->GetByteSize(), die);
+            }
+            ClangASTContext::CompleteTagDeclarationDefinition (clang_type);
+            return (bool)clang_type;
+
+        default:
+            assert(false && "not a forward clang type decl!");
+            break;
+    }
+
+    return false;
+}
+
+std::vector<DWARFDIE>
+DWARFASTParserClang::GetDIEForDeclContext(lldb_private::CompilerDeclContext decl_context)
+{
+    std::vector<DWARFDIE> result;
+    for (auto it = m_decl_ctx_to_die.find((clang::DeclContext *)decl_context.GetOpaqueDeclContext()); it != m_decl_ctx_to_die.end(); it++)
+        result.push_back(it->second);
+    return result;
+}
+
+CompilerDecl
+DWARFASTParserClang::GetDeclForUIDFromDWARF (const DWARFDIE &die)
+{
+    clang::Decl *clang_decl = GetClangDeclForDIE(die);
+    if (clang_decl != nullptr)
+        return CompilerDecl(&m_ast, clang_decl);
+    return CompilerDecl();
+}
+
+CompilerDeclContext
+DWARFASTParserClang::GetDeclContextForUIDFromDWARF (const DWARFDIE &die)
+{
+    clang::DeclContext *clang_decl_ctx = GetClangDeclContextForDIE (die);
+    if (clang_decl_ctx)
+        return CompilerDeclContext(&m_ast, clang_decl_ctx);
+    return CompilerDeclContext();
+}
+
+CompilerDeclContext
+DWARFASTParserClang::GetDeclContextContainingUIDFromDWARF (const DWARFDIE &die)
+{
+    clang::DeclContext *clang_decl_ctx = GetClangDeclContextContainingDIE (die, nullptr);
+    if (clang_decl_ctx)
+        return CompilerDeclContext(&m_ast, clang_decl_ctx);
+    return CompilerDeclContext();
+}
+
+size_t
+DWARFASTParserClang::ParseChildEnumerators (const SymbolContext& sc,
+                                            lldb_private::CompilerType &clang_type,
+                                            bool is_signed,
+                                            uint32_t enumerator_byte_size,
+                                            const DWARFDIE &parent_die)
+{
+    if (!parent_die)
+        return 0;
+
+    size_t enumerators_added = 0;
+
+    for (DWARFDIE die = parent_die.GetFirstChild(); die.IsValid(); die = die.GetSibling())
+    {
+        const dw_tag_t tag = die.Tag();
+        if (tag == DW_TAG_enumerator)
+        {
+            DWARFAttributes attributes;
+            const size_t num_child_attributes = die.GetAttributes(attributes);
+            if (num_child_attributes > 0)
+            {
+                const char *name = NULL;
+                bool got_value = false;
+                int64_t enum_value = 0;
+                Declaration decl;
+
+                uint32_t i;
+                for (i=0; i<num_child_attributes; ++i)
+                {
+                    const dw_attr_t attr = attributes.AttributeAtIndex(i);
+                    DWARFFormValue form_value;
+                    if (attributes.ExtractFormValueAtIndex(i, form_value))
+                    {
+                        switch (attr)
+                        {
+                            case DW_AT_const_value:
+                                got_value = true;
+                                if (is_signed)
+                                    enum_value = form_value.Signed();
+                                else
+                                    enum_value = form_value.Unsigned();
+                                break;
+
+                            case DW_AT_name:
+                                name = form_value.AsCString();
+                                break;
+
+                            case DW_AT_description:
+                            default:
+                            case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+                            case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
+                            case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+                            case DW_AT_sibling:
+                                break;
+                        }
+                    }
+                }
+
+                if (name && name[0] && got_value)
+                {
+                    m_ast.AddEnumerationValueToEnumerationType (clang_type.GetOpaqueQualType(),
+                                                                m_ast.GetEnumerationIntegerType(clang_type.GetOpaqueQualType()),
+                                                                decl,
+                                                                name,
+                                                                enum_value,
+                                                                enumerator_byte_size * 8);
+                    ++enumerators_added;
+                }
+            }
+        }
+    }
+    return enumerators_added;
+}
+
+#if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE)
+
+class DIEStack
+{
+public:
+
+    void Push (const DWARFDIE &die)
+    {
+        m_dies.push_back (die);
+    }
+
+
+    void LogDIEs (Log *log)
+    {
+        StreamString log_strm;
+        const size_t n = m_dies.size();
+        log_strm.Printf("DIEStack[%" PRIu64 "]:\n", (uint64_t)n);
+        for (size_t i=0; i<n; i++)
+        {
+            std::string qualified_name;
+            const DWARFDIE &die = m_dies[i];
+            die.GetQualifiedName(qualified_name);
+            log_strm.Printf ("[%" PRIu64 "] 0x%8.8x: %s name='%s'\n",
+                             (uint64_t)i,
+                             die.GetOffset(),
+                             die.GetTagAsCString(),
+                             qualified_name.c_str());
+        }
+        log->PutCString(log_strm.GetData());
+    }
+    void Pop ()
+    {
+        m_dies.pop_back();
+    }
+
+    class ScopedPopper
+    {
+    public:
+        ScopedPopper (DIEStack &die_stack) :
+        m_die_stack (die_stack),
+        m_valid (false)
+        {
+        }
+
+        void
+        Push (const DWARFDIE &die)
+        {
+            m_valid = true;
+            m_die_stack.Push (die);
+        }
+
+        ~ScopedPopper ()
+        {
+            if (m_valid)
+                m_die_stack.Pop();
+        }
+
+
+
+    protected:
+        DIEStack &m_die_stack;
+        bool m_valid;
+    };
+
+protected:
+    typedef std::vector<DWARFDIE> Stack;
+    Stack m_dies;
+};
+#endif
+
+Function *
+DWARFASTParserClang::ParseFunctionFromDWARF (const SymbolContext& sc,
+                                             const DWARFDIE &die)
+{
+    DWARFRangeList func_ranges;
+    const char *name = NULL;
+    const char *mangled = NULL;
+    int decl_file = 0;
+    int decl_line = 0;
+    int decl_column = 0;
+    int call_file = 0;
+    int call_line = 0;
+    int call_column = 0;
+    DWARFExpression frame_base(die.GetCU());
+
+    const dw_tag_t tag = die.Tag();
+
+    if (tag != DW_TAG_subprogram)
+        return NULL;
+
+    if (die.GetDIENamesAndRanges (name,
+                                  mangled,
+                                  func_ranges,
+                                  decl_file,
+                                  decl_line,
+                                  decl_column,
+                                  call_file,
+                                  call_line,
+                                  call_column,
+                                  &frame_base))
+    {
+
+        // Union of all ranges in the function DIE (if the function is discontiguous)
+        AddressRange func_range;
+        lldb::addr_t lowest_func_addr = func_ranges.GetMinRangeBase (0);
+        lldb::addr_t highest_func_addr = func_ranges.GetMaxRangeEnd (0);
+        if (lowest_func_addr != LLDB_INVALID_ADDRESS && lowest_func_addr <= highest_func_addr)
+        {
+            ModuleSP module_sp (die.GetModule());
+            func_range.GetBaseAddress().ResolveAddressUsingFileSections (lowest_func_addr, module_sp->GetSectionList());
+            if (func_range.GetBaseAddress().IsValid())
+                func_range.SetByteSize(highest_func_addr - lowest_func_addr);
+        }
+
+        if (func_range.GetBaseAddress().IsValid())
+        {
+            Mangled func_name;
+            if (mangled)
+                func_name.SetValue(ConstString(mangled), true);
+            else if (die.GetParent().Tag() == DW_TAG_compile_unit &&
+                     Language::LanguageIsCPlusPlus(die.GetLanguage()) &&
+                     name && strcmp(name, "main") != 0)
+            {
+                // If the mangled name is not present in the DWARF, generate the demangled name
+                // using the decl context. We skip if the function is "main" as its name is
+                // never mangled.
+                bool is_static = false;
+                bool is_variadic = false;
+                unsigned type_quals = 0;
+                std::vector<CompilerType> param_types;
+                std::vector<clang::ParmVarDecl*> param_decls;
+                DWARFDeclContext decl_ctx;
+                StreamString sstr;
+
+                die.GetDWARFDeclContext(decl_ctx);
+                sstr << decl_ctx.GetQualifiedName();
+
+                clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE(die, nullptr);
+                ParseChildParameters(sc,
+                                     containing_decl_ctx,
+                                     die,
+                                     true,
+                                     is_static,
+                                     is_variadic,
+                                     param_types,
+                                     param_decls,
+                                     type_quals);
+                sstr << "(";
+                for (size_t i = 0; i < param_types.size(); i++)
+                {
+                    if (i > 0)
+                        sstr << ", ";
+                    sstr << param_types[i].GetTypeName();
+                }
+                if (is_variadic)
+                    sstr << ", ...";
+                sstr << ")";
+                if (type_quals & clang::Qualifiers::Const)
+                    sstr << " const";
+
+                func_name.SetValue(ConstString(sstr.GetData()), false);
+            }
+            else
+                func_name.SetValue(ConstString(name), false);
+
+            FunctionSP func_sp;
+            std::unique_ptr<Declaration> decl_ap;
+            if (decl_file != 0 || decl_line != 0 || decl_column != 0)
+                decl_ap.reset(new Declaration (sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(decl_file),
+                                               decl_line,
+                                               decl_column));
+
+            SymbolFileDWARF *dwarf = die.GetDWARF();
+            // Supply the type _only_ if it has already been parsed
+            Type *func_type = dwarf->GetDIEToType().lookup (die.GetDIE());
+
+            assert(func_type == NULL || func_type != DIE_IS_BEING_PARSED);
+
+            if (dwarf->FixupAddress (func_range.GetBaseAddress()))
+            {
+                const user_id_t func_user_id = die.GetID();
+                func_sp.reset(new Function (sc.comp_unit,
+                                            func_user_id,       // UserID is the DIE offset
+                                            func_user_id,
+                                            func_name,
+                                            func_type,
+                                            func_range));           // first address range
+
+                if (func_sp.get() != NULL)
+                {
+                    if (frame_base.IsValid())
+                        func_sp->GetFrameBaseExpression() = frame_base;
+                    sc.comp_unit->AddFunction(func_sp);
+                    return func_sp.get();
+                }
+            }
+        }
+    }
+    return NULL;
+}
+
+
+bool
+DWARFASTParserClang::ParseChildMembers (const SymbolContext& sc,
+                                        const DWARFDIE &parent_die,
+                                        CompilerType &class_clang_type,
+                                        const LanguageType class_language,
+                                        std::vector<clang::CXXBaseSpecifier *>& base_classes,
+                                        std::vector<int>& member_accessibilities,
+                                        DWARFDIECollection& member_function_dies,
+                                        DelayedPropertyList& delayed_properties,
+                                        AccessType& default_accessibility,
+                                        bool &is_a_class,
+                                        LayoutInfo &layout_info)
+{
+    if (!parent_die)
+        return 0;
+
+    uint32_t member_idx = 0;
+    BitfieldInfo last_field_info;
+
+    ModuleSP module_sp = parent_die.GetDWARF()->GetObjectFile()->GetModule();
+    ClangASTContext *ast = llvm::dyn_cast_or_null<ClangASTContext>(class_clang_type.GetTypeSystem());
+    if (ast == nullptr)
+        return 0;
+
+    for (DWARFDIE die = parent_die.GetFirstChild(); die.IsValid(); die = die.GetSibling())
+    {
+        dw_tag_t tag = die.Tag();
+
+        switch (tag)
+        {
+            case DW_TAG_member:
+            case DW_TAG_APPLE_property:
+            {
+                DWARFAttributes attributes;
+                const size_t num_attributes = die.GetAttributes (attributes);
+                if (num_attributes > 0)
+                {
+                    Declaration decl;
+                    //DWARFExpression location;
+                    const char *name = NULL;
+                    const char *prop_name = NULL;
+                    const char *prop_getter_name = NULL;
+                    const char *prop_setter_name = NULL;
+                    uint32_t prop_attributes = 0;
+
+
+                    bool is_artificial = false;
+                    DWARFFormValue encoding_form;
+                    AccessType accessibility = eAccessNone;
+                    uint32_t member_byte_offset = UINT32_MAX;
+                    size_t byte_size = 0;
+                    size_t bit_offset = 0;
+                    size_t bit_size = 0;
+                    bool is_external = false; // On DW_TAG_members, this means the member is static
+                    uint32_t i;
+                    for (i=0; i<num_attributes && !is_artificial; ++i)
+                    {
+                        const dw_attr_t attr = attributes.AttributeAtIndex(i);
+                        DWARFFormValue form_value;
+                        if (attributes.ExtractFormValueAtIndex(i, form_value))
+                        {
+                            switch (attr)
+                            {
+                                case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+                                case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
+                                case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+                                case DW_AT_name:        name = form_value.AsCString(); break;
+                                case DW_AT_type:        encoding_form = form_value; break;
+                                case DW_AT_bit_offset:  bit_offset = form_value.Unsigned(); break;
+                                case DW_AT_bit_size:    bit_size = form_value.Unsigned(); break;
+                                case DW_AT_byte_size:   byte_size = form_value.Unsigned(); break;
+                                case DW_AT_data_member_location:
+                                    if (form_value.BlockData())
+                                    {
+                                        Value initialValue(0);
+                                        Value memberOffset(0);
+                                        const DWARFDataExtractor& debug_info_data = die.GetDWARF()->get_debug_info_data();
+                                        uint32_t block_length = form_value.Unsigned();
+                                        uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
+                                        if (DWARFExpression::Evaluate(NULL, // ExecutionContext *
+                                                                      NULL, // ClangExpressionVariableList *
+                                                                      NULL, // ClangExpressionDeclMap *
+                                                                      NULL, // RegisterContext *
+                                                                      module_sp,
+                                                                      debug_info_data,
+                                                                      die.GetCU(),
+                                                                      block_offset,
+                                                                      block_length,
+                                                                      eRegisterKindDWARF,
+                                                                      &initialValue,
+                                                                      memberOffset,
+                                                                      NULL))
+                                        {
+                                            member_byte_offset = memberOffset.ResolveValue(NULL).UInt();
+                                        }
+                                    }
+                                    else
+                                    {
+                                        // With DWARF 3 and later, if the value is an integer constant,
+                                        // this form value is the offset in bytes from the beginning
+                                        // of the containing entity.
+                                        member_byte_offset = form_value.Unsigned();
+                                    }
+                                    break;
+
+                                case DW_AT_accessibility: accessibility = DW_ACCESS_to_AccessType (form_value.Unsigned()); break;
+                                case DW_AT_artificial: is_artificial = form_value.Boolean(); break;
+                                case DW_AT_APPLE_property_name:      prop_name = form_value.AsCString();
+                                    break;
+                                case DW_AT_APPLE_property_getter:    prop_getter_name = form_value.AsCString();
+                                    break;
+                                case DW_AT_APPLE_property_setter:    prop_setter_name = form_value.AsCString();
+                                    break;
+                                case DW_AT_APPLE_property_attribute: prop_attributes = form_value.Unsigned(); break;
+                                case DW_AT_external:                 is_external = form_value.Boolean(); break;
+
+                                default:
+                                case DW_AT_declaration:
+                                case DW_AT_description:
+                                case DW_AT_mutable:
+                                case DW_AT_visibility:
+                                case DW_AT_sibling:
+                                    break;
+                            }
+                        }
+                    }
+
+                    if (prop_name)
+                    {
+                        ConstString fixed_getter;
+                        ConstString fixed_setter;
+
+                        // Check if the property getter/setter were provided as full
+                        // names.  We want basenames, so we extract them.
+
+                        if (prop_getter_name && prop_getter_name[0] == '-')
+                        {
+                            ObjCLanguage::MethodName prop_getter_method(prop_getter_name, true);
+                            prop_getter_name = prop_getter_method.GetSelector().GetCString();
+                        }
+
+                        if (prop_setter_name && prop_setter_name[0] == '-')
+                        {
+                            ObjCLanguage::MethodName prop_setter_method(prop_setter_name, true);
+                            prop_setter_name = prop_setter_method.GetSelector().GetCString();
+                        }
+
+                        // If the names haven't been provided, they need to be
+                        // filled in.
+
+                        if (!prop_getter_name)
+                        {
+                            prop_getter_name = prop_name;
+                        }
+                        if (!prop_setter_name && prop_name[0] && !(prop_attributes & DW_APPLE_PROPERTY_readonly))
+                        {
+                            StreamString ss;
+
+                            ss.Printf("set%c%s:",
+                                      toupper(prop_name[0]),
+                                      &prop_name[1]);
+
+                            fixed_setter.SetCString(ss.GetData());
+                            prop_setter_name = fixed_setter.GetCString();
+                        }
+                    }
+
+                    // Clang has a DWARF generation bug where sometimes it
+                    // represents fields that are references with bad byte size
+                    // and bit size/offset information such as:
+                    //
+                    //  DW_AT_byte_size( 0x00 )
+                    //  DW_AT_bit_size( 0x40 )
+                    //  DW_AT_bit_offset( 0xffffffffffffffc0 )
+                    //
+                    // So check the bit offset to make sure it is sane, and if
+                    // the values are not sane, remove them. If we don't do this
+                    // then we will end up with a crash if we try to use this
+                    // type in an expression when clang becomes unhappy with its
+                    // recycled debug info.
+
+                    if (bit_offset > 128)
+                    {
+                        bit_size = 0;
+                        bit_offset = 0;
+                    }
+
+                    // FIXME: Make Clang ignore Objective-C accessibility for expressions
+                    if (class_language == eLanguageTypeObjC ||
+                        class_language == eLanguageTypeObjC_plus_plus)
+                        accessibility = eAccessNone;
+
+                    if (member_idx == 0 && !is_artificial && name && (strstr (name, "_vptr$") == name))
+                    {
+                        // Not all compilers will mark the vtable pointer
+                        // member as artificial (llvm-gcc). We can't have
+                        // the virtual members in our classes otherwise it
+                        // throws off all child offsets since we end up
+                        // having and extra pointer sized member in our
+                        // class layouts.
+                        is_artificial = true;
+                    }
+
+                    // Handle static members
+                    if (is_external && member_byte_offset == UINT32_MAX)
+                    {
+                        Type *var_type = die.ResolveTypeUID(DIERef(encoding_form).GetUID());
+
+                        if (var_type)
+                        {
+                            if (accessibility == eAccessNone)
+                                accessibility = eAccessPublic;
+                            ClangASTContext::AddVariableToRecordType (class_clang_type,
+                                                                      name,
+                                                                      var_type->GetLayoutCompilerType (),
+                                                                      accessibility);
+                        }
+                        break;
+                    }
+
+                    if (is_artificial == false)
+                    {
+                        Type *member_type = die.ResolveTypeUID(DIERef(encoding_form).GetUID());
+
+                        clang::FieldDecl *field_decl = NULL;
+                        if (tag == DW_TAG_member)
+                        {
+                            if (member_type)
+                            {
+                                if (accessibility == eAccessNone)
+                                    accessibility = default_accessibility;
+                                member_accessibilities.push_back(accessibility);
+
+                                uint64_t field_bit_offset = (member_byte_offset == UINT32_MAX ? 0 : (member_byte_offset * 8));
+                                if (bit_size > 0)
+                                {
+
+                                    BitfieldInfo this_field_info;
+                                    this_field_info.bit_offset = field_bit_offset;
+                                    this_field_info.bit_size = bit_size;
+
+                                    /////////////////////////////////////////////////////////////
+                                    // How to locate a field given the DWARF debug information
+                                    //
+                                    // AT_byte_size indicates the size of the word in which the
+                                    // bit offset must be interpreted.
+                                    //
+                                    // AT_data_member_location indicates the byte offset of the
+                                    // word from the base address of the structure.
+                                    //
+                                    // AT_bit_offset indicates how many bits into the word
+                                    // (according to the host endianness) the low-order bit of
+                                    // the field starts.  AT_bit_offset can be negative.
+                                    //
+                                    // AT_bit_size indicates the size of the field in bits.
+                                    /////////////////////////////////////////////////////////////
+
+                                    if (byte_size == 0)
+                                        byte_size = member_type->GetByteSize();
+
+                                    if (die.GetDWARF()->GetObjectFile()->GetByteOrder() == eByteOrderLittle)
+                                    {
+                                        this_field_info.bit_offset += byte_size * 8;
+                                        this_field_info.bit_offset -= (bit_offset + bit_size);
+                                    }
+                                    else
+                                    {
+                                        this_field_info.bit_offset += bit_offset;
+                                    }
+
+                                    // Update the field bit offset we will report for layout
+                                    field_bit_offset = this_field_info.bit_offset;
+
+                                    // If the member to be emitted did not start on a character boundary and there is
+                                    // empty space between the last field and this one, then we need to emit an
+                                    // anonymous member filling up the space up to its start.  There are three cases
+                                    // here:
+                                    //
+                                    // 1 If the previous member ended on a character boundary, then we can emit an
+                                    //   anonymous member starting at the most recent character boundary.
+                                    //
+                                    // 2 If the previous member did not end on a character boundary and the distance
+                                    //   from the end of the previous member to the current member is less than a
+                                    //   word width, then we can emit an anonymous member starting right after the
+                                    //   previous member and right before this member.
+                                    //
+                                    // 3 If the previous member did not end on a character boundary and the distance
+                                    //   from the end of the previous member to the current member is greater than
+                                    //   or equal a word width, then we act as in Case 1.
+
+                                    const uint64_t character_width = 8;
+                                    const uint64_t word_width = 32;
+
+                                    // Objective-C has invalid DW_AT_bit_offset values in older versions
+                                    // of clang, so we have to be careful and only insert unnamed bitfields
+                                    // if we have a new enough clang.
+                                    bool detect_unnamed_bitfields = true;
+
+                                    if (class_language == eLanguageTypeObjC || class_language == eLanguageTypeObjC_plus_plus)
+                                        detect_unnamed_bitfields = die.GetCU()->Supports_unnamed_objc_bitfields ();
+
+                                    if (detect_unnamed_bitfields)
+                                    {
+                                        BitfieldInfo anon_field_info;
+
+                                        if ((this_field_info.bit_offset % character_width) != 0) // not char aligned
+                                        {
+                                            uint64_t last_field_end = 0;
+
+                                            if (last_field_info.IsValid())
+                                                last_field_end = last_field_info.bit_offset + last_field_info.bit_size;
+
+                                            if (this_field_info.bit_offset != last_field_end)
+                                            {
+                                                if (((last_field_end % character_width) == 0) ||                    // case 1
+                                                    (this_field_info.bit_offset - last_field_end >= word_width))    // case 3
+                                                {
+                                                    anon_field_info.bit_size = this_field_info.bit_offset % character_width;
+                                                    anon_field_info.bit_offset = this_field_info.bit_offset - anon_field_info.bit_size;
+                                                }
+                                                else                                                                // case 2
+                                                {
+                                                    anon_field_info.bit_size = this_field_info.bit_offset - last_field_end;
+                                                    anon_field_info.bit_offset = last_field_end;
+                                                }
+                                            }
+                                        }
+
+                                        if (anon_field_info.IsValid())
+                                        {
+                                            clang::FieldDecl *unnamed_bitfield_decl =
+                                            ClangASTContext::AddFieldToRecordType (class_clang_type,
+                                                                                   NULL,
+                                                                                   m_ast.GetBuiltinTypeForEncodingAndBitSize(eEncodingSint, word_width),
+                                                                                   accessibility,
+                                                                                   anon_field_info.bit_size);
+
+                                            layout_info.field_offsets.insert(
+                                                                             std::make_pair(unnamed_bitfield_decl, anon_field_info.bit_offset));
+                                        }
+                                    }
+                                    last_field_info = this_field_info;
+                                }
+                                else
+                                {
+                                    last_field_info.Clear();
+                                }
+
+                                CompilerType member_clang_type = member_type->GetLayoutCompilerType ();
+                                if (!member_clang_type.IsCompleteType())
+                                    member_clang_type.GetCompleteType();
+
+                                {
+                                    // Older versions of clang emit array[0] and array[1] in the same way (<rdar://problem/12566646>).
+                                    // If the current field is at the end of the structure, then there is definitely no room for extra
+                                    // elements and we override the type to array[0].
+
+                                    CompilerType member_array_element_type;
+                                    uint64_t member_array_size;
+                                    bool member_array_is_incomplete;
+
+                                    if (member_clang_type.IsArrayType(&member_array_element_type,
+                                                                      &member_array_size,
+                                                                      &member_array_is_incomplete) &&
+                                        !member_array_is_incomplete)
+                                    {
+                                        uint64_t parent_byte_size = parent_die.GetAttributeValueAsUnsigned(DW_AT_byte_size, UINT64_MAX);
+
+                                        if (member_byte_offset >= parent_byte_size)
+                                        {
+                                            if (member_array_size != 1)
+                                            {
+                                                module_sp->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64 " which extends beyond the bounds of 0x%8.8" PRIx64,
+                                                                        die.GetID(),
+                                                                        name,
+                                                                        encoding_form.Reference(),
+                                                                        parent_die.GetID());
+                                            }
+
+                                            member_clang_type = m_ast.CreateArrayType(member_array_element_type, 0, false);
+                                        }
+                                    }
+                                }
+
+                                if (ClangASTContext::IsCXXClassType(member_clang_type) && member_clang_type.GetCompleteType() == false)
+                                {
+                                    if (die.GetCU()->GetProducer() == DWARFCompileUnit::eProducerClang)
+                                        module_sp->ReportError ("DWARF DIE at 0x%8.8x (class %s) has a member variable 0x%8.8x (%s) whose type is a forward declaration, not a complete definition.\nTry compiling the source file with -fno-limit-debug-info",
+                                                                parent_die.GetOffset(),
+                                                                parent_die.GetName(),
+                                                                die.GetOffset(),
+                                                                name);
+                                    else
+                                        module_sp->ReportError ("DWARF DIE at 0x%8.8x (class %s) has a member variable 0x%8.8x (%s) whose type is a forward declaration, not a complete definition.\nPlease file a bug against the compiler and include the preprocessed output for %s",
+                                                                parent_die.GetOffset(),
+                                                                parent_die.GetName(),
+                                                                die.GetOffset(),
+                                                                name,
+                                                                sc.comp_unit ? sc.comp_unit->GetPath().c_str() : "the source file");
+                                    // We have no choice other than to pretend that the member class
+                                    // is complete. If we don't do this, clang will crash when trying
+                                    // to layout the class. Since we provide layout assistance, all
+                                    // ivars in this class and other classes will be fine, this is
+                                    // the best we can do short of crashing.
+                                    ClangASTContext::StartTagDeclarationDefinition(member_clang_type);
+                                    ClangASTContext::CompleteTagDeclarationDefinition(member_clang_type);
+                                }
+
+                                field_decl = ClangASTContext::AddFieldToRecordType (class_clang_type,
+                                                                                    name,
+                                                                                    member_clang_type,
+                                                                                    accessibility,
+                                                                                    bit_size);
+
+                                m_ast.SetMetadataAsUserID (field_decl, die.GetID());
+
+                                layout_info.field_offsets.insert(std::make_pair(field_decl, field_bit_offset));
+                            }
+                            else
+                            {
+                                if (name)
+                                    module_sp->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64 " which was unable to be parsed",
+                                                            die.GetID(),
+                                                            name,
+                                                            encoding_form.Reference());
+                                else
+                                    module_sp->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member refers to type 0x%8.8" PRIx64 " which was unable to be parsed",
+                                                            die.GetID(),
+                                                            encoding_form.Reference());
+                            }
+                        }
+
+                        if (prop_name != NULL && member_type)
+                        {
+                            clang::ObjCIvarDecl *ivar_decl = NULL;
+
+                            if (field_decl)
+                            {
+                                ivar_decl = clang::dyn_cast<clang::ObjCIvarDecl>(field_decl);
+                                assert (ivar_decl != NULL);
+                            }
+
+                            ClangASTMetadata metadata;
+                            metadata.SetUserID (die.GetID());
+                            delayed_properties.push_back(DelayedAddObjCClassProperty(class_clang_type,
+                                                                                     prop_name,
+                                                                                     member_type->GetLayoutCompilerType (),
+                                                                                     ivar_decl,
+                                                                                     prop_setter_name,
+                                                                                     prop_getter_name,
+                                                                                     prop_attributes,
+                                                                                     &metadata));
+
+                            if (ivar_decl)
+                                m_ast.SetMetadataAsUserID (ivar_decl, die.GetID());
+                        }
+                    }
+                }
+                ++member_idx;
+            }
+                break;
+
+            case DW_TAG_subprogram:
+                // Let the type parsing code handle this one for us.
+                member_function_dies.Append (die);
+                break;
+
+            case DW_TAG_inheritance:
+            {
+                is_a_class = true;
+                if (default_accessibility == eAccessNone)
+                    default_accessibility = eAccessPrivate;
+                // TODO: implement DW_TAG_inheritance type parsing
+                DWARFAttributes attributes;
+                const size_t num_attributes = die.GetAttributes (attributes);
+                if (num_attributes > 0)
+                {
+                    Declaration decl;
+                    DWARFExpression location(die.GetCU());
+                    DWARFFormValue encoding_form;
+                    AccessType accessibility = default_accessibility;
+                    bool is_virtual = false;
+                    bool is_base_of_class = true;
+                    off_t member_byte_offset = 0;
+                    uint32_t i;
+                    for (i=0; i<num_attributes; ++i)
+                    {
+                        const dw_attr_t attr = attributes.AttributeAtIndex(i);
+                        DWARFFormValue form_value;
+                        if (attributes.ExtractFormValueAtIndex(i, form_value))
+                        {
+                            switch (attr)
+                            {
+                                case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+                                case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
+                                case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+                                case DW_AT_type:        encoding_form = form_value; break;
+                                case DW_AT_data_member_location:
+                                    if (form_value.BlockData())
+                                    {
+                                        Value initialValue(0);
+                                        Value memberOffset(0);
+                                        const DWARFDataExtractor& debug_info_data = die.GetDWARF()->get_debug_info_data();
+                                        uint32_t block_length = form_value.Unsigned();
+                                        uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
+                                        if (DWARFExpression::Evaluate (NULL,
+                                                                       NULL,
+                                                                       NULL,
+                                                                       NULL,
+                                                                       module_sp,
+                                                                       debug_info_data,
+                                                                       die.GetCU(),
+                                                                       block_offset,
+                                                                       block_length,
+                                                                       eRegisterKindDWARF,
+                                                                       &initialValue,
+                                                                       memberOffset,
+                                                                       NULL))
+                                        {
+                                            member_byte_offset = memberOffset.ResolveValue(NULL).UInt();
+                                        }
+                                    }
+                                    else
+                                    {
+                                        // With DWARF 3 and later, if the value is an integer constant,
+                                        // this form value is the offset in bytes from the beginning
+                                        // of the containing entity.
+                                        member_byte_offset = form_value.Unsigned();
+                                    }
+                                    break;
+
+                                case DW_AT_accessibility:
+                                    accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned());
+                                    break;
+
+                                case DW_AT_virtuality:
+                                    is_virtual = form_value.Boolean();
+                                    break;
+
+                                case DW_AT_sibling:
+                                    break;
+
+                                default:
+                                    break;
+                            }
+                        }
+                    }
+
+                    Type *base_class_type = die.ResolveTypeUID(DIERef(encoding_form).GetUID());
+                    if (base_class_type == NULL)
+                    {
+                        module_sp->ReportError("0x%8.8x: DW_TAG_inheritance failed to resolve the base class at 0x%8.8" PRIx64 " from enclosing type 0x%8.8x. \nPlease file a bug and attach the file at the start of this error message",
+                                               die.GetOffset(),
+                                               encoding_form.Reference(),
+                                               parent_die.GetOffset());
+                        break;
+                    }
+
+                    CompilerType base_class_clang_type = base_class_type->GetFullCompilerType ();
+                    assert (base_class_clang_type);
+                    if (class_language == eLanguageTypeObjC)
+                    {
+                        ast->SetObjCSuperClass(class_clang_type, base_class_clang_type);
+                    }
+                    else
+                    {
+                        base_classes.push_back (ast->CreateBaseClassSpecifier (base_class_clang_type.GetOpaqueQualType(),
+                                                                               accessibility,
+                                                                               is_virtual,
+                                                                               is_base_of_class));
+
+                        if (is_virtual)
+                        {
+                            // Do not specify any offset for virtual inheritance. The DWARF produced by clang doesn't
+                            // give us a constant offset, but gives us a DWARF expressions that requires an actual object
+                            // in memory. the DW_AT_data_member_location for a virtual base class looks like:
+                            //      DW_AT_data_member_location( DW_OP_dup, DW_OP_deref, DW_OP_constu(0x00000018), DW_OP_minus, DW_OP_deref, DW_OP_plus )
+                            // Given this, there is really no valid response we can give to clang for virtual base
+                            // class offsets, and this should eventually be removed from LayoutRecordType() in the external
+                            // AST source in clang.
+                        }
+                        else
+                        {
+                            layout_info.base_offsets.insert(
+                                                            std::make_pair(ast->GetAsCXXRecordDecl(base_class_clang_type.GetOpaqueQualType()),
+                                                                           clang::CharUnits::fromQuantity(member_byte_offset)));
+                        }
+                    }
+                }
+            }
+                break;
+
+            default:
+                break;
+        }
+    }
+
+    return true;
+}
+
+
+size_t
+DWARFASTParserClang::ParseChildParameters (const SymbolContext& sc,
+                                           clang::DeclContext *containing_decl_ctx,
+                                           const DWARFDIE &parent_die,
+                                           bool skip_artificial,
+                                           bool &is_static,
+                                           bool &is_variadic,
+                                           std::vector<CompilerType>& function_param_types,
+                                           std::vector<clang::ParmVarDecl*>& function_param_decls,
+                                           unsigned &type_quals)
+{
+    if (!parent_die)
+        return 0;
+
+    size_t arg_idx = 0;
+    for (DWARFDIE die = parent_die.GetFirstChild(); die.IsValid(); die = die.GetSibling())
+    {
+        const dw_tag_t tag = die.Tag();
+        switch (tag)
+        {
+            case DW_TAG_formal_parameter:
+            {
+                DWARFAttributes attributes;
+                const size_t num_attributes = die.GetAttributes(attributes);
+                if (num_attributes > 0)
+                {
+                    const char *name = NULL;
+                    Declaration decl;
+                    DWARFFormValue param_type_die_form;
+                    bool is_artificial = false;
+                    // one of None, Auto, Register, Extern, Static, PrivateExtern
+
+                    clang::StorageClass storage = clang::SC_None;
+                    uint32_t i;
+                    for (i=0; i<num_attributes; ++i)
+                    {
+                        const dw_attr_t attr = attributes.AttributeAtIndex(i);
+                        DWARFFormValue form_value;
+                        if (attributes.ExtractFormValueAtIndex(i, form_value))
+                        {
+                            switch (attr)
+                            {
+                                case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
+                                case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
+                                case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
+                                case DW_AT_name:        name = form_value.AsCString();
+                                    break;
+                                case DW_AT_type:        param_type_die_form = form_value; break;
+                                case DW_AT_artificial:  is_artificial = form_value.Boolean(); break;
+                                case DW_AT_location:
+                                    //                          if (form_value.BlockData())
+                                    //                          {
+                                    //                              const DWARFDataExtractor& debug_info_data = debug_info();
+                                    //                              uint32_t block_length = form_value.Unsigned();
+                                    //                              DWARFDataExtractor location(debug_info_data, form_value.BlockData() - debug_info_data.GetDataStart(), block_length);
+                                    //                          }
+                                    //                          else
+                                    //                          {
+                                    //                          }
+                                    //                          break;
+                                case DW_AT_const_value:
+                                case DW_AT_default_value:
+                                case DW_AT_description:
+                                case DW_AT_endianity:
+                                case DW_AT_is_optional:
+                                case DW_AT_segment:
+                                case DW_AT_variable_parameter:
+                                default:
+                                case DW_AT_abstract_origin:
+                                case DW_AT_sibling:
+                                    break;
+                            }
+                        }
+                    }
+
+                    bool skip = false;
+                    if (skip_artificial)
+                    {
+                        if (is_artificial)
+                        {
+                            // In order to determine if a C++ member function is
+                            // "const" we have to look at the const-ness of "this"...
+                            // Ugly, but that
+                            if (arg_idx == 0)
+                            {
+                                if (DeclKindIsCXXClass(containing_decl_ctx->getDeclKind()))
+                                {
+                                    // Often times compilers omit the "this" name for the
+                                    // specification DIEs, so we can't rely upon the name
+                                    // being in the formal parameter DIE...
+                                    if (name == NULL || ::strcmp(name, "this")==0)
+                                    {
+                                        Type *this_type = die.ResolveTypeUID (DIERef(param_type_die_form).GetUID());
+                                        if (this_type)
+                                        {
+                                            uint32_t encoding_mask = this_type->GetEncodingMask();
+                                            if (encoding_mask & Type::eEncodingIsPointerUID)
+                                            {
+                                                is_static = false;
+
+                                                if (encoding_mask & (1u << Type::eEncodingIsConstUID))
+                                                    type_quals |= clang::Qualifiers::Const;
+                                                if (encoding_mask & (1u << Type::eEncodingIsVolatileUID))
+                                                    type_quals |= clang::Qualifiers::Volatile;
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                            skip = true;
+                        }
+                        else
+                        {
+
+                            // HACK: Objective C formal parameters "self" and "_cmd"
+                            // are not marked as artificial in the DWARF...
+                            CompileUnit *comp_unit = die.GetLLDBCompileUnit();
+                            if (comp_unit)
+                            {
+                                switch (comp_unit->GetLanguage())
+                                {
+                                    case eLanguageTypeObjC:
+                                    case eLanguageTypeObjC_plus_plus:
+                                        if (name && name[0] && (strcmp (name, "self") == 0 || strcmp (name, "_cmd") == 0))
+                                            skip = true;
+                                        break;
+                                    default:
+                                        break;
+                                }
+                            }
+                        }
+                    }
+
+                    if (!skip)
+                    {
+                        Type *type = die.ResolveTypeUID(DIERef(param_type_die_form).GetUID());
+                        if (type)
+                        {
+                            function_param_types.push_back (type->GetForwardCompilerType ());
+
+                            clang::ParmVarDecl *param_var_decl = m_ast.CreateParameterDeclaration (name,
+                                                                                                   type->GetForwardCompilerType (),
+                                                                                                   storage);
+                            assert(param_var_decl);
+                            function_param_decls.push_back(param_var_decl);
+
+                            m_ast.SetMetadataAsUserID (param_var_decl, die.GetID());
+                        }
+                    }
+                }
+                arg_idx++;
+            }
+                break;
+
+            case DW_TAG_unspecified_parameters:
+                is_variadic = true;
+                break;
+
+            case DW_TAG_template_type_parameter:
+            case DW_TAG_template_value_parameter:
+                // The one caller of this was never using the template_param_infos,
+                // and the local variable was taking up a large amount of stack space
+                // in SymbolFileDWARF::ParseType() so this was removed. If we ever need
+                // the template params back, we can add them back.
+                // ParseTemplateDIE (dwarf_cu, die, template_param_infos);
+                break;
+
+            default:
+                break;
+        }
+    }
+    return arg_idx;
+}
+
+void
+DWARFASTParserClang::ParseChildArrayInfo (const SymbolContext& sc,
+                                          const DWARFDIE &parent_die,
+                                          int64_t& first_index,
+                                          std::vector<uint64_t>& element_orders,
+                                          uint32_t& byte_stride,
+                                          uint32_t& bit_stride)
+{
+    if (!parent_die)
+        return;
+
+    for (DWARFDIE die = parent_die.GetFirstChild(); die.IsValid(); die = die.GetSibling())
+    {
+        const dw_tag_t tag = die.Tag();
+        switch (tag)
+        {
+            case DW_TAG_subrange_type:
+            {
+                DWARFAttributes attributes;
+                const size_t num_child_attributes = die.GetAttributes(attributes);
+                if (num_child_attributes > 0)
+                {
+                    uint64_t num_elements = 0;
+                    uint64_t lower_bound = 0;
+                    uint64_t upper_bound = 0;
+                    bool upper_bound_valid = false;
+                    uint32_t i;
+                    for (i=0; i<num_child_attributes; ++i)
+                    {
+                        const dw_attr_t attr = attributes.AttributeAtIndex(i);
+                        DWARFFormValue form_value;
+                        if (attributes.ExtractFormValueAtIndex(i, form_value))
+                        {
+                            switch (attr)
+                            {
+                                case DW_AT_name:
+                                    break;
+
+                                case DW_AT_count:
+                                    num_elements = form_value.Unsigned();
+                                    break;
+
+                                case DW_AT_bit_stride:
+                                    bit_stride = form_value.Unsigned();
+                                    break;
+
+                                case DW_AT_byte_stride:
+                                    byte_stride = form_value.Unsigned();
+                                    break;
+
+                                case DW_AT_lower_bound:
+                                    lower_bound = form_value.Unsigned();
+                                    break;
+
+                                case DW_AT_upper_bound:
+                                    upper_bound_valid = true;
+                                    upper_bound = form_value.Unsigned();
+                                    break;
+
+                                default:
+                                case DW_AT_abstract_origin:
+                                case DW_AT_accessibility:
+                                case DW_AT_allocated:
+                                case DW_AT_associated:
+                                case DW_AT_data_location:
+                                case DW_AT_declaration:
+                                case DW_AT_description:
+                                case DW_AT_sibling:
+                                case DW_AT_threads_scaled:
+                                case DW_AT_type:
+                                case DW_AT_visibility:
+                                    break;
+                            }
+                        }
+                    }
+
+                    if (num_elements == 0)
+                    {
+                        if (upper_bound_valid && upper_bound >= lower_bound)
+                            num_elements = upper_bound - lower_bound + 1;
+                    }
+
+                    element_orders.push_back (num_elements);
+                }
+            }
+                break;
+        }
+    }
+}
+
+Type *
+DWARFASTParserClang::GetTypeForDIE (const DWARFDIE &die)
+{
+    if (die)
+    {
+        SymbolFileDWARF *dwarf = die.GetDWARF();
+        DWARFAttributes attributes;
+        const size_t num_attributes = die.GetAttributes(attributes);
+        if (num_attributes > 0)
+        {
+            DWARFFormValue type_die_form;
+            for (size_t i = 0; i < num_attributes; ++i)
+            {
+                dw_attr_t attr = attributes.AttributeAtIndex(i);
+                DWARFFormValue form_value;
+
+                if (attr == DW_AT_type && attributes.ExtractFormValueAtIndex(i, form_value))
+                    return dwarf->ResolveTypeUID(DIERef(form_value).GetUID());
+            }
+        }
+    }
+
+    return nullptr;
+}
+
+clang::Decl *
+DWARFASTParserClang::GetClangDeclForDIE (const DWARFDIE &die)
+{
+    if (!die)
+        return nullptr;
+
+    switch (die.Tag())
+    {
+        case DW_TAG_variable:
+        case DW_TAG_constant:
+        case DW_TAG_formal_parameter:
+        case DW_TAG_imported_declaration:
+        case DW_TAG_imported_module:
+            break;
+        default:
+            return nullptr;
+    }
+
+    DIEToDeclMap::iterator cache_pos = m_die_to_decl.find(die.GetDIE());
+    if (cache_pos != m_die_to_decl.end())
+        return cache_pos->second;
+
+    if (DWARFDIE spec_die = die.GetReferencedDIE(DW_AT_specification))
+    {
+        clang::Decl *decl = GetClangDeclForDIE(spec_die);
+        m_die_to_decl[die.GetDIE()] = decl;
+        m_decl_to_die[decl].insert(die.GetDIE());
+        return decl;
+    }
+
+    clang::Decl *decl = nullptr;
+    switch (die.Tag())
+    {
+        case DW_TAG_variable:
+        case DW_TAG_constant:
+        case DW_TAG_formal_parameter:
+        {
+            SymbolFileDWARF *dwarf = die.GetDWARF();
+            Type *type = GetTypeForDIE(die);
+            const char *name = die.GetName();
+            clang::DeclContext *decl_context = ClangASTContext::DeclContextGetAsDeclContext(dwarf->GetDeclContextContainingUID(die.GetID()));
+            decl = m_ast.CreateVariableDeclaration(
+                decl_context,
+                name,
+                ClangASTContext::GetQualType(type->GetForwardCompilerType()));
+            break;
+        }
+        case DW_TAG_imported_declaration:
+        {
+            SymbolFileDWARF *dwarf = die.GetDWARF();
+            lldb::user_id_t imported_uid = die.GetAttributeValueAsReference(DW_AT_import, DW_INVALID_OFFSET);
+
+            if (dwarf->UserIDMatches(imported_uid))
+            {
+                CompilerDecl imported_decl = dwarf->GetDeclForUID(imported_uid);
+                if (imported_decl)
+                {
+                    clang::DeclContext *decl_context = ClangASTContext::DeclContextGetAsDeclContext(dwarf->GetDeclContextContainingUID(die.GetID()));
+                    if (clang::NamedDecl *clang_imported_decl = llvm::dyn_cast<clang::NamedDecl>((clang::Decl *)imported_decl.GetOpaqueDecl()))
+                        decl = m_ast.CreateUsingDeclaration(decl_context, clang_imported_decl);
+                }
+            }
+            break;
+        }
+        case DW_TAG_imported_module:
+        {
+            SymbolFileDWARF *dwarf = die.GetDWARF();
+            lldb::user_id_t imported_uid = die.GetAttributeValueAsReference(DW_AT_import, DW_INVALID_OFFSET);
+
+            if (dwarf->UserIDMatches(imported_uid))
+            {
+                CompilerDeclContext imported_decl = dwarf->GetDeclContextForUID(imported_uid);
+                if (imported_decl)
+                {
+                    clang::DeclContext *decl_context = ClangASTContext::DeclContextGetAsDeclContext(dwarf->GetDeclContextContainingUID(die.GetID()));
+                    if (clang::NamespaceDecl *ns_decl = ClangASTContext::DeclContextGetAsNamespaceDecl(imported_decl))
+                        decl = m_ast.CreateUsingDirectiveDeclaration(decl_context, ns_decl);
+                }
+            }
+            break;
+        }
+        default:
+            break;
+    }
+
+    m_die_to_decl[die.GetDIE()] = decl;
+    m_decl_to_die[decl].insert(die.GetDIE());
+
+    return decl;
+}
+
+clang::DeclContext *
+DWARFASTParserClang::GetClangDeclContextForDIE (const DWARFDIE &die)
+{
+    if (die)
+    {
+        clang::DeclContext *decl_ctx = GetCachedClangDeclContextForDIE (die);
+        if (decl_ctx)
+            return decl_ctx;
+
+        bool try_parsing_type = true;
+        switch (die.Tag())
+        {
+            case DW_TAG_compile_unit:
+                decl_ctx = m_ast.GetTranslationUnitDecl();
+                try_parsing_type = false;
+                break;
+
+            case DW_TAG_namespace:
+                decl_ctx = ResolveNamespaceDIE (die);
+                try_parsing_type = false;
+                break;
+
+            case DW_TAG_lexical_block:
+                decl_ctx = (clang::DeclContext *)ResolveBlockDIE(die);
+                try_parsing_type = false;
+                break;
+
+            default:
+                break;
+        }
+
+        if (decl_ctx == nullptr && try_parsing_type)
+        {
+            Type* type = die.GetDWARF()->ResolveType (die);
+            if (type)
+                decl_ctx = GetCachedClangDeclContextForDIE (die);
+        }
+
+        if (decl_ctx)
+        {
+            LinkDeclContextToDIE (decl_ctx, die);
+            return decl_ctx;
+        }
+    }
+    return nullptr;
+}
+
+clang::BlockDecl *
+DWARFASTParserClang::ResolveBlockDIE (const DWARFDIE &die)
+{
+    if (die && die.Tag() == DW_TAG_lexical_block)
+    {
+        clang::BlockDecl *decl = llvm::cast_or_null<clang::BlockDecl>(m_die_to_decl_ctx[die.GetDIE()]);
+
+        if (!decl)
+        {
+            DWARFDIE decl_context_die;
+            clang::DeclContext *decl_context = GetClangDeclContextContainingDIE(die, &decl_context_die);
+            decl = m_ast.CreateBlockDeclaration(decl_context);
+
+            if (decl)
+                LinkDeclContextToDIE((clang::DeclContext *)decl, die);
+        }
+
+        return decl;
+    }
+    return nullptr;
+}
+
+clang::NamespaceDecl *
+DWARFASTParserClang::ResolveNamespaceDIE (const DWARFDIE &die)
+{
+    if (die && die.Tag() == DW_TAG_namespace)
+    {
+        // See if we already parsed this namespace DIE and associated it with a
+        // uniqued namespace declaration
+        clang::NamespaceDecl *namespace_decl = static_cast<clang::NamespaceDecl *>(m_die_to_decl_ctx[die.GetDIE()]);
+        if (namespace_decl)
+            return namespace_decl;
+        else
+        {
+            const char *namespace_name = die.GetName();
+            clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (die, nullptr);
+            namespace_decl = m_ast.GetUniqueNamespaceDeclaration (namespace_name, containing_decl_ctx);
+            Log *log = nullptr;// (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
+            if (log)
+            {
+                SymbolFileDWARF *dwarf = die.GetDWARF();
+                if (namespace_name)
+                {
+                    dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+                                                                     "ASTContext => %p: 0x%8.8" PRIx64 ": DW_TAG_namespace with DW_AT_name(\"%s\") => clang::NamespaceDecl *%p (original = %p)",
+                                                                     static_cast<void*>(m_ast.getASTContext()),
+                                                                     die.GetID(),
+                                                                     namespace_name,
+                                                                     static_cast<void*>(namespace_decl),
+                                                                     static_cast<void*>(namespace_decl->getOriginalNamespace()));
+                }
+                else
+                {
+                    dwarf->GetObjectFile()->GetModule()->LogMessage (log,
+                                                                     "ASTContext => %p: 0x%8.8" PRIx64 ": DW_TAG_namespace (anonymous) => clang::NamespaceDecl *%p (original = %p)",
+                                                                     static_cast<void*>(m_ast.getASTContext()),
+                                                                     die.GetID(),
+                                                                     static_cast<void*>(namespace_decl),
+                                                                     static_cast<void*>(namespace_decl->getOriginalNamespace()));
+                }
+            }
+
+            if (namespace_decl)
+                LinkDeclContextToDIE((clang::DeclContext*)namespace_decl, die);
+            return namespace_decl;
+        }
+    }
+    return nullptr;
+}
+
+clang::DeclContext *
+DWARFASTParserClang::GetClangDeclContextContainingDIE (const DWARFDIE &die,
+                                                       DWARFDIE *decl_ctx_die_copy)
+{
+    SymbolFileDWARF *dwarf = die.GetDWARF();
+
+    DWARFDIE decl_ctx_die = dwarf->GetDeclContextDIEContainingDIE (die);
+
+    if (decl_ctx_die_copy)
+        *decl_ctx_die_copy = decl_ctx_die;
+
+    if (decl_ctx_die)
+    {
+        clang::DeclContext *clang_decl_ctx = GetClangDeclContextForDIE (decl_ctx_die);
+        if (clang_decl_ctx)
+            return clang_decl_ctx;
+    }
+    return m_ast.GetTranslationUnitDecl();
+}
+
+clang::DeclContext *
+DWARFASTParserClang::GetCachedClangDeclContextForDIE (const DWARFDIE &die)
+{
+    if (die)
+    {
+        DIEToDeclContextMap::iterator pos = m_die_to_decl_ctx.find(die.GetDIE());
+        if (pos != m_die_to_decl_ctx.end())
+            return pos->second;
+    }
+    return nullptr;
+}
+
+void
+DWARFASTParserClang::LinkDeclContextToDIE (clang::DeclContext *decl_ctx, const DWARFDIE &die)
+{
+    m_die_to_decl_ctx[die.GetDIE()] = decl_ctx;
+    // There can be many DIEs for a single decl context
+    //m_decl_ctx_to_die[decl_ctx].insert(die.GetDIE());
+    m_decl_ctx_to_die.insert(std::make_pair(decl_ctx, die));
+}
+
+bool
+DWARFASTParserClang::CopyUniqueClassMethodTypes (const DWARFDIE &src_class_die,
+                                                 const DWARFDIE &dst_class_die,
+                                                 lldb_private::Type *class_type,
+                                                 DWARFDIECollection &failures)
+{
+    if (!class_type || !src_class_die || !dst_class_die)
+        return false;
+    if (src_class_die.Tag() != dst_class_die.Tag())
+        return false;
+
+    // We need to complete the class type so we can get all of the method types
+    // parsed so we can then unique those types to their equivalent counterparts
+    // in "dst_cu" and "dst_class_die"
+    class_type->GetFullCompilerType ();
+
+    DWARFDIE src_die;
+    DWARFDIE dst_die;
+    UniqueCStringMap<DWARFDIE> src_name_to_die;
+    UniqueCStringMap<DWARFDIE> dst_name_to_die;
+    UniqueCStringMap<DWARFDIE> src_name_to_die_artificial;
+    UniqueCStringMap<DWARFDIE> dst_name_to_die_artificial;
+    for (src_die = src_class_die.GetFirstChild(); src_die.IsValid(); src_die = src_die.GetSibling())
+    {
+        if (src_die.Tag() == DW_TAG_subprogram)
+        {
+            // Make sure this is a declaration and not a concrete instance by looking
+            // for DW_AT_declaration set to 1. Sometimes concrete function instances
+            // are placed inside the class definitions and shouldn't be included in
+            // the list of things are are tracking here.
+            if (src_die.GetAttributeValueAsUnsigned(DW_AT_declaration, 0) == 1)
+            {
+                const char *src_name = src_die.GetMangledName ();
+                if (src_name)
+                {
+                    ConstString src_const_name(src_name);
+                    if (src_die.GetAttributeValueAsUnsigned(DW_AT_artificial, 0))
+                        src_name_to_die_artificial.Append(src_const_name.GetCString(), src_die);
+                    else
+                        src_name_to_die.Append(src_const_name.GetCString(), src_die);
+                }
+            }
+        }
+    }
+    for (dst_die = dst_class_die.GetFirstChild(); dst_die.IsValid(); dst_die = dst_die.GetSibling())
+    {
+        if (dst_die.Tag() == DW_TAG_subprogram)
+        {
+            // Make sure this is a declaration and not a concrete instance by looking
+            // for DW_AT_declaration set to 1. Sometimes concrete function instances
+            // are placed inside the class definitions and shouldn't be included in
+            // the list of things are are tracking here.
+            if (dst_die.GetAttributeValueAsUnsigned(DW_AT_declaration, 0) == 1)
+            {
+                const char *dst_name =  dst_die.GetMangledName ();
+                if (dst_name)
+                {
+                    ConstString dst_const_name(dst_name);
+                    if ( dst_die.GetAttributeValueAsUnsigned(DW_AT_artificial, 0))
+                        dst_name_to_die_artificial.Append(dst_const_name.GetCString(), dst_die);
+                    else
+                        dst_name_to_die.Append(dst_const_name.GetCString(), dst_die);
+                }
+            }
+        }
+    }
+    const uint32_t src_size = src_name_to_die.GetSize ();
+    const uint32_t dst_size = dst_name_to_die.GetSize ();
+    Log *log = nullptr; // (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO | DWARF_LOG_TYPE_COMPLETION));
+
+    // Is everything kosher so we can go through the members at top speed?
+    bool fast_path = true;
+
+    if (src_size != dst_size)
+    {
+        if (src_size != 0 && dst_size != 0)
+        {
+            if (log)
+                log->Printf("warning: trying to unique class DIE 0x%8.8x to 0x%8.8x, but they didn't have the same size (src=%d, dst=%d)",
+                            src_class_die.GetOffset(),
+                            dst_class_die.GetOffset(),
+                            src_size,
+                            dst_size);
+        }
+
+        fast_path = false;
+    }
+
+    uint32_t idx;
+
+    if (fast_path)
+    {
+        for (idx = 0; idx < src_size; ++idx)
+        {
+            src_die = src_name_to_die.GetValueAtIndexUnchecked (idx);
+            dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx);
+
+            if (src_die.Tag() != dst_die.Tag())
+            {
+                if (log)
+                    log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)",
+                                src_class_die.GetOffset(),
+                                dst_class_die.GetOffset(),
+                                src_die.GetOffset(),
+                                src_die.GetTagAsCString(),
+                                dst_die.GetOffset(),
+                                dst_die.GetTagAsCString());
+                fast_path = false;
+            }
+
+            const char *src_name = src_die.GetMangledName ();
+            const char *dst_name = dst_die.GetMangledName ();
+
+            // Make sure the names match
+            if (src_name == dst_name || (strcmp (src_name, dst_name) == 0))
+                continue;
+
+            if (log)
+                log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, but 0x%8.8x (%s) names didn't match 0x%8.8x (%s)",
+                            src_class_die.GetOffset(),
+                            dst_class_die.GetOffset(),
+                            src_die.GetOffset(),
+                            src_name,
+                            dst_die.GetOffset(),
+                            dst_name);
+
+            fast_path = false;
+        }
+    }
+
+    DWARFASTParserClang *src_dwarf_ast_parser = (DWARFASTParserClang *)src_die.GetDWARFParser();
+    DWARFASTParserClang *dst_dwarf_ast_parser = (DWARFASTParserClang *)dst_die.GetDWARFParser();
+
+    // Now do the work of linking the DeclContexts and Types.
+    if (fast_path)
+    {
+        // We can do this quickly.  Just run across the tables index-for-index since
+        // we know each node has matching names and tags.
+        for (idx = 0; idx < src_size; ++idx)
+        {
+            src_die = src_name_to_die.GetValueAtIndexUnchecked (idx);
+            dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx);
+
+            clang::DeclContext *src_decl_ctx = src_dwarf_ast_parser->m_die_to_decl_ctx[src_die.GetDIE()];
+            if (src_decl_ctx)
+            {
+                if (log)
+                    log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
+                                 static_cast<void*>(src_decl_ctx),
+                                 src_die.GetOffset(), dst_die.GetOffset());
+                dst_dwarf_ast_parser->LinkDeclContextToDIE (src_decl_ctx, dst_die);
+            }
+            else
+            {
+                if (log)
+                    log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found",
+                                 src_die.GetOffset(), dst_die.GetOffset());
+            }
+
+            Type *src_child_type = dst_die.GetDWARF()->GetDIEToType()[src_die.GetDIE()];
+            if (src_child_type)
+            {
+                if (log)
+                    log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
+                                 static_cast<void*>(src_child_type),
+                                 src_child_type->GetID(),
+                                 src_die.GetOffset(), dst_die.GetOffset());
+                dst_die.GetDWARF()->GetDIEToType()[dst_die.GetDIE()] = src_child_type;
+            }
+            else
+            {
+                if (log)
+                    log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset(), dst_die.GetOffset());
+            }
+        }
+    }
+    else
+    {
+        // We must do this slowly.  For each member of the destination, look
+        // up a member in the source with the same name, check its tag, and
+        // unique them if everything matches up.  Report failures.
+
+        if (!src_name_to_die.IsEmpty() && !dst_name_to_die.IsEmpty())
+        {
+            src_name_to_die.Sort();
+
+            for (idx = 0; idx < dst_size; ++idx)
+            {
+                const char *dst_name = dst_name_to_die.GetCStringAtIndex(idx);
+                dst_die = dst_name_to_die.GetValueAtIndexUnchecked(idx);
+                src_die = src_name_to_die.Find(dst_name, DWARFDIE());
+
+                if (src_die && (src_die.Tag() == dst_die.Tag()))
+                {
+                    clang::DeclContext *src_decl_ctx = src_dwarf_ast_parser->m_die_to_decl_ctx[src_die.GetDIE()];
+                    if (src_decl_ctx)
+                    {
+                        if (log)
+                            log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
+                                         static_cast<void*>(src_decl_ctx),
+                                         src_die.GetOffset(),
+                                         dst_die.GetOffset());
+                        dst_dwarf_ast_parser->LinkDeclContextToDIE (src_decl_ctx, dst_die);
+                    }
+                    else
+                    {
+                        if (log)
+                            log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset(), dst_die.GetOffset());
+                    }
+
+                    Type *src_child_type = dst_die.GetDWARF()->GetDIEToType()[src_die.GetDIE()];
+                    if (src_child_type)
+                    {
+                        if (log)
+                            log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
+                                         static_cast<void*>(src_child_type),
+                                         src_child_type->GetID(),
+                                         src_die.GetOffset(),
+                                         dst_die.GetOffset());
+                        dst_die.GetDWARF()->GetDIEToType()[dst_die.GetDIE()] = src_child_type;
+                    }
+                    else
+                    {
+                        if (log)
+                            log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset(), dst_die.GetOffset());
+                    }
+                }
+                else
+                {
+                    if (log)
+                        log->Printf ("warning: couldn't find a match for 0x%8.8x", dst_die.GetOffset());
+
+                    failures.Append(dst_die);
+                }
+            }
+        }
+    }
+
+    const uint32_t src_size_artificial = src_name_to_die_artificial.GetSize ();
+    const uint32_t dst_size_artificial = dst_name_to_die_artificial.GetSize ();
+
+    if (src_size_artificial && dst_size_artificial)
+    {
+        dst_name_to_die_artificial.Sort();
+
+        for (idx = 0; idx < src_size_artificial; ++idx)
+        {
+            const char *src_name_artificial = src_name_to_die_artificial.GetCStringAtIndex(idx);
+            src_die = src_name_to_die_artificial.GetValueAtIndexUnchecked (idx);
+            dst_die = dst_name_to_die_artificial.Find(src_name_artificial, DWARFDIE());
+
+            if (dst_die)
+            {
+                // Both classes have the artificial types, link them
+                clang::DeclContext *src_decl_ctx = src_dwarf_ast_parser->m_die_to_decl_ctx[src_die.GetDIE()];
+                if (src_decl_ctx)
+                {
+                    if (log)
+                        log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
+                                     static_cast<void*>(src_decl_ctx),
+                                     src_die.GetOffset(), dst_die.GetOffset());
+                    dst_dwarf_ast_parser->LinkDeclContextToDIE (src_decl_ctx, dst_die);
+                }
+                else
+                {
+                    if (log)
+                        log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset(), dst_die.GetOffset());
+                }
+
+                Type *src_child_type = dst_die.GetDWARF()->GetDIEToType()[src_die.GetDIE()];
+                if (src_child_type)
+                {
+                    if (log)
+                        log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
+                                     static_cast<void*>(src_child_type),
+                                     src_child_type->GetID(),
+                                     src_die.GetOffset(), dst_die.GetOffset());
+                    dst_die.GetDWARF()->GetDIEToType()[dst_die.GetDIE()] = src_child_type;
+                }
+                else
+                {
+                    if (log)
+                        log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset(), dst_die.GetOffset());
+                }
+            }
+        }
+    }
+
+    if (dst_size_artificial)
+    {
+        for (idx = 0; idx < dst_size_artificial; ++idx)
+        {
+            const char *dst_name_artificial = dst_name_to_die_artificial.GetCStringAtIndex(idx);
+            dst_die = dst_name_to_die_artificial.GetValueAtIndexUnchecked (idx);
+            if (log)
+                log->Printf ("warning: need to create artificial method for 0x%8.8x for method '%s'", dst_die.GetOffset(), dst_name_artificial);
+
+            failures.Append(dst_die);
+        }
+    }
+
+    return (failures.Size() != 0);
+}
+
+
+bool
+DWARFASTParserClang::LayoutRecordType(const clang::RecordDecl *record_decl,
+                                      uint64_t &bit_size,
+                                      uint64_t &alignment,
+                                      llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
+                                      llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
+                                      llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets)
+{
+    RecordDeclToLayoutMap::iterator pos = m_record_decl_to_layout_map.find (record_decl);
+    bool success = false;
+    base_offsets.clear();
+    vbase_offsets.clear();
+    if (pos != m_record_decl_to_layout_map.end())
+    {
+        bit_size = pos->second.bit_size;
+        alignment = pos->second.alignment;
+        field_offsets.swap(pos->second.field_offsets);
+        base_offsets.swap (pos->second.base_offsets);
+        vbase_offsets.swap (pos->second.vbase_offsets);
+        m_record_decl_to_layout_map.erase(pos);
+        success = true;
+    }
+    else
+    {
+        bit_size = 0;
+        alignment = 0;
+        field_offsets.clear();
+    }
+    return success;
+}
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.h b/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.h
new file mode 100644
index 0000000000000..3814758fdd2cf
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.h
@@ -0,0 +1,213 @@
+//===-- DWARFASTParserClang.h -----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SymbolFileDWARF_DWARFASTParserClang_h_
+#define SymbolFileDWARF_DWARFASTParserClang_h_
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/ADT/SmallVector.h"
+#include "clang/AST/CharUnits.h"
+
+// Project includes
+#include "lldb/Core/ClangForward.h"
+#include "lldb/Core/PluginInterface.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "DWARFDefines.h"
+#include "DWARFASTParser.h"
+
+class DWARFDebugInfoEntry;
+class DWARFDIECollection;
+
+class DWARFASTParserClang : public DWARFASTParser
+{
+public:
+    DWARFASTParserClang (lldb_private::ClangASTContext &ast);
+
+    ~DWARFASTParserClang() override;
+
+    lldb::TypeSP
+    ParseTypeFromDWARF (const lldb_private::SymbolContext& sc,
+                        const DWARFDIE &die,
+                        lldb_private::Log *log,
+                        bool *type_is_new_ptr) override;
+
+
+    lldb_private::Function *
+    ParseFunctionFromDWARF (const lldb_private::SymbolContext& sc,
+                            const DWARFDIE &die) override;
+
+    bool
+    CanCompleteType (const lldb_private::CompilerType &compiler_type) override;
+
+    bool
+    CompleteType (const lldb_private::CompilerType &compiler_type) override;
+
+    bool
+    CompleteTypeFromDWARF (const DWARFDIE &die,
+                           lldb_private::Type *type,
+                           lldb_private::CompilerType &compiler_type) override;
+
+    lldb_private::CompilerDecl
+    GetDeclForUIDFromDWARF (const DWARFDIE &die) override;
+
+    std::vector<DWARFDIE>
+    GetDIEForDeclContext (lldb_private::CompilerDeclContext decl_context) override;
+
+    lldb_private::CompilerDeclContext
+    GetDeclContextForUIDFromDWARF (const DWARFDIE &die) override;
+
+    lldb_private::CompilerDeclContext
+    GetDeclContextContainingUIDFromDWARF (const DWARFDIE &die) override;
+
+    bool
+    LayoutRecordType(const clang::RecordDecl *record_decl,
+                     uint64_t &bit_size,
+                     uint64_t &alignment,
+                     llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
+                     llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
+                     llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets);
+
+protected:
+    class DelayedAddObjCClassProperty;
+    typedef std::vector <DelayedAddObjCClassProperty> DelayedPropertyList;
+
+    struct LayoutInfo
+    {
+        LayoutInfo () :
+        bit_size(0),
+        alignment(0),
+        field_offsets(),
+        base_offsets(),
+        vbase_offsets()
+        {
+        }
+        uint64_t bit_size;
+        uint64_t alignment;
+        llvm::DenseMap<const clang::FieldDecl *, uint64_t> field_offsets;
+        llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> base_offsets;
+        llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> vbase_offsets;
+    };
+
+    clang::BlockDecl *
+    ResolveBlockDIE (const DWARFDIE &die);
+
+    clang::NamespaceDecl *
+    ResolveNamespaceDIE (const DWARFDIE &die);
+
+    typedef llvm::DenseMap<const clang::RecordDecl *, LayoutInfo> RecordDeclToLayoutMap;
+
+    bool
+    ParseTemplateDIE (const DWARFDIE &die,
+                      lldb_private::ClangASTContext::TemplateParameterInfos &template_param_infos);
+    bool
+    ParseTemplateParameterInfos (const DWARFDIE &parent_die,
+                                 lldb_private::ClangASTContext::TemplateParameterInfos &template_param_infos);
+
+    bool
+    ParseChildMembers (const lldb_private::SymbolContext& sc,
+                       const DWARFDIE &die,
+                       lldb_private::CompilerType &class_compiler_type,
+                       const lldb::LanguageType class_language,
+                       std::vector<clang::CXXBaseSpecifier *>& base_classes,
+                       std::vector<int>& member_accessibilities,
+                       DWARFDIECollection& member_function_dies,
+                       DelayedPropertyList& delayed_properties,
+                       lldb::AccessType &default_accessibility,
+                       bool &is_a_class,
+                       LayoutInfo &layout_info);
+
+    size_t
+    ParseChildParameters (const lldb_private::SymbolContext& sc,
+                          clang::DeclContext *containing_decl_ctx,
+                          const DWARFDIE &parent_die,
+                          bool skip_artificial,
+                          bool &is_static,
+                          bool &is_variadic,
+                          std::vector<lldb_private::CompilerType>& function_args,
+                          std::vector<clang::ParmVarDecl*>& function_param_decls,
+                          unsigned &type_quals);
+
+    void
+    ParseChildArrayInfo (const lldb_private::SymbolContext& sc,
+                         const DWARFDIE &parent_die,
+                         int64_t& first_index,
+                         std::vector<uint64_t>& element_orders,
+                         uint32_t& byte_stride,
+                         uint32_t& bit_stride);
+
+    size_t
+    ParseChildEnumerators (const lldb_private::SymbolContext& sc,
+                           lldb_private::CompilerType &compiler_type,
+                           bool is_signed,
+                           uint32_t enumerator_byte_size,
+                           const DWARFDIE &parent_die);
+
+    lldb_private::Type *
+    GetTypeForDIE (const DWARFDIE &die);
+
+    clang::Decl *
+    GetClangDeclForDIE (const DWARFDIE &die);
+
+    clang::DeclContext *
+    GetClangDeclContextForDIE (const DWARFDIE &die);
+
+    clang::DeclContext *
+    GetClangDeclContextContainingDIE (const DWARFDIE &die,
+                                      DWARFDIE *decl_ctx_die);
+
+    bool
+    CopyUniqueClassMethodTypes (const DWARFDIE &src_class_die,
+                                const DWARFDIE &dst_class_die,
+                                lldb_private::Type *class_type,
+                                DWARFDIECollection &failures);
+
+    clang::DeclContext *
+    GetCachedClangDeclContextForDIE (const DWARFDIE &die);
+
+    void
+    LinkDeclContextToDIE (clang::DeclContext *decl_ctx,
+                          const DWARFDIE &die);
+
+    void
+    LinkDeclToDIE (clang::Decl *decl, const DWARFDIE &die);
+
+    lldb_private::ClangASTImporter &
+    GetClangASTImporter();
+
+    lldb::TypeSP
+    ParseTypeFromDWO (const DWARFDIE &die, lldb_private::Log *log);
+
+    //----------------------------------------------------------------------
+    // Return true if this type is a declaration to a type in an external
+    // module.
+    //----------------------------------------------------------------------
+    lldb::ModuleSP
+    GetModuleForType (const DWARFDIE &die);
+
+    typedef llvm::SmallPtrSet<const DWARFDebugInfoEntry *, 4> DIEPointerSet;
+    typedef llvm::DenseMap<const DWARFDebugInfoEntry *, clang::DeclContext *> DIEToDeclContextMap;
+    //typedef llvm::DenseMap<const clang::DeclContext *, DIEPointerSet> DeclContextToDIEMap;
+    typedef std::multimap<const clang::DeclContext *, const DWARFDIE> DeclContextToDIEMap;
+    typedef llvm::DenseMap<const DWARFDebugInfoEntry *, clang::Decl *> DIEToDeclMap;
+    typedef llvm::DenseMap<const clang::Decl *, DIEPointerSet> DeclToDIEMap;
+
+    lldb_private::ClangASTContext &m_ast;
+    DIEToDeclMap m_die_to_decl;
+    DeclToDIEMap m_decl_to_die;
+    DIEToDeclContextMap m_die_to_decl_ctx;
+    DeclContextToDIEMap m_decl_ctx_to_die;
+    RecordDeclToLayoutMap m_record_decl_to_layout_map;
+    std::unique_ptr<lldb_private::ClangASTImporter> m_clang_ast_importer_ap;
+};
+
+#endif // SymbolFileDWARF_DWARFASTParserClang_h_
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFASTParserGo.cpp b/source/Plugins/SymbolFile/DWARF/DWARFASTParserGo.cpp
new file mode 100644
index 0000000000000..bde2694461e2e
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DWARFASTParserGo.cpp
@@ -0,0 +1,828 @@
+//===-- DWARFASTParserGo.cpp ---------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "DWARFASTParserGo.h"
+
+#include "DWARFASTParserGo.h"
+#include "DWARFCompileUnit.h"
+#include "DWARFDebugInfo.h"
+#include "DWARFDeclContext.h"
+#include "DWARFDefines.h"
+#include "DWARFDIE.h"
+#include "DWARFDIECollection.h"
+#include "SymbolFileDWARF.h"
+#include "SymbolFileDWARFDebugMap.h"
+#include "UniqueDWARFASTType.h"
+
+#include "clang/Basic/Specifiers.h"
+
+#include "lldb/Core/Module.h"
+#include "lldb/Core/Value.h"
+#include "lldb/Symbol/CompileUnit.h"
+#include "lldb/Symbol/Function.h"
+#include "lldb/Symbol/ObjectFile.h"
+#include "lldb/Symbol/TypeList.h"
+
+//#define ENABLE_DEBUG_PRINTF // COMMENT OUT THIS LINE PRIOR TO CHECKIN
+
+#ifdef ENABLE_DEBUG_PRINTF
+#include <stdio.h>
+#define DEBUG_PRINTF(fmt, ...) printf(fmt, __VA_ARGS__)
+#else
+#define DEBUG_PRINTF(fmt, ...)
+#endif
+
+#define DW_AT_go_kind 0x2900
+#define DW_AT_go_key 0x2901
+#define DW_AT_go_elem 0x2902
+
+using namespace lldb;
+using namespace lldb_private;
+DWARFASTParserGo::DWARFASTParserGo(GoASTContext &ast)
+    : m_ast(ast)
+{
+}
+
+DWARFASTParserGo::~DWARFASTParserGo()
+{
+}
+
+TypeSP
+DWARFASTParserGo::ParseTypeFromDWARF(const lldb_private::SymbolContext &sc, const DWARFDIE &die, lldb_private::Log *log,
+                                     bool *type_is_new_ptr)
+{
+    TypeSP type_sp;
+
+    if (type_is_new_ptr)
+        *type_is_new_ptr = false;
+
+    if (die)
+    {
+        SymbolFileDWARF *dwarf = die.GetDWARF();
+        if (log)
+        {
+            dwarf->GetObjectFile()->GetModule()->LogMessage(
+                log, "DWARFASTParserGo::ParseTypeFromDWARF (die = 0x%8.8x) %s name = '%s')", die.GetOffset(),
+                DW_TAG_value_to_name(die.Tag()), die.GetName());
+        }
+
+        Type *type_ptr = dwarf->m_die_to_type.lookup(die.GetDIE());
+        TypeList *type_list = dwarf->GetTypeList();
+        if (type_ptr == NULL)
+        {
+            if (type_is_new_ptr)
+                *type_is_new_ptr = true;
+
+            const dw_tag_t tag = die.Tag();
+
+            bool is_forward_declaration = false;
+            DWARFAttributes attributes;
+            const char *type_name_cstr = NULL;
+            ConstString type_name_const_str;
+            Type::ResolveState resolve_state = Type::eResolveStateUnresolved;
+            uint64_t byte_size = 0;
+            uint64_t go_kind = 0;
+            Declaration decl;
+
+            Type::EncodingDataType encoding_data_type = Type::eEncodingIsUID;
+            CompilerType compiler_type;
+            DWARFFormValue form_value;
+
+            dw_attr_t attr;
+
+            switch (tag)
+            {
+                case DW_TAG_base_type:
+                case DW_TAG_pointer_type:
+                case DW_TAG_typedef:
+                case DW_TAG_unspecified_type:
+                {
+                    // Set a bit that lets us know that we are currently parsing this
+                    dwarf->m_die_to_type[die.GetDIE()] = DIE_IS_BEING_PARSED;
+
+                    const size_t num_attributes = die.GetAttributes(attributes);
+                    lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
+
+                    if (num_attributes > 0)
+                    {
+                        uint32_t i;
+                        for (i = 0; i < num_attributes; ++i)
+                        {
+                            attr = attributes.AttributeAtIndex(i);
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                            {
+                                switch (attr)
+                                {
+                                    case DW_AT_name:
+                                        type_name_cstr = form_value.AsCString();
+                                        if (type_name_cstr)
+                                            type_name_const_str.SetCString(type_name_cstr);
+                                        break;
+                                    case DW_AT_byte_size:
+                                        byte_size = form_value.Unsigned();
+                                        break;
+                                    case DW_AT_encoding:
+                                        // = form_value.Unsigned();
+                                        break;
+                                    case DW_AT_type:
+                                        encoding_uid = form_value.Reference();
+                                        break;
+                                    case DW_AT_go_kind:
+                                        go_kind = form_value.Unsigned();
+                                        break;
+                                    default:
+                                        // Do we care about DW_AT_go_key or DW_AT_go_elem?
+                                        break;
+                                }
+                            }
+                        }
+                    }
+
+                    DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\") type => 0x%8.8lx\n", dwarf->MakeUserID(die.GetOffset()),
+                                 DW_TAG_value_to_name(tag), type_name_cstr, encoding_uid);
+
+                    switch (tag)
+                    {
+                        default:
+                            break;
+
+                        case DW_TAG_unspecified_type:
+                            resolve_state = Type::eResolveStateFull;
+                            compiler_type = m_ast.CreateVoidType(type_name_const_str);
+                            break;
+
+                        case DW_TAG_base_type:
+                            resolve_state = Type::eResolveStateFull;
+                            compiler_type = m_ast.CreateBaseType(go_kind, type_name_const_str, byte_size);
+                            break;
+
+                        case DW_TAG_pointer_type:
+                            encoding_data_type = Type::eEncodingIsPointerUID;
+                            break;
+                        case DW_TAG_typedef:
+                            encoding_data_type = Type::eEncodingIsTypedefUID;
+                            CompilerType impl;
+                            Type *type = dwarf->ResolveTypeUID(encoding_uid);
+                            if (type)
+                            {
+                                if (go_kind == 0 && type->GetName() == type_name_const_str)
+                                {
+                                    // Go emits extra typedefs as a forward declaration. Ignore these.
+                                    dwarf->m_die_to_type[die.GetDIE()] = type;
+                                    return type->shared_from_this();
+                                }
+                                impl = type->GetForwardCompilerType();
+                                compiler_type = m_ast.CreateTypedefType (go_kind, type_name_const_str, impl);
+                            }
+                            break;
+                    }
+
+                    type_sp.reset(new Type(dwarf->MakeUserID(die.GetOffset()), dwarf, type_name_const_str, byte_size,
+                                           NULL, encoding_uid, encoding_data_type, &decl, compiler_type, resolve_state));
+
+                    dwarf->m_die_to_type[die.GetDIE()] = type_sp.get();
+                }
+                break;
+
+                case DW_TAG_structure_type:
+                {
+                    // Set a bit that lets us know that we are currently parsing this
+                    dwarf->m_die_to_type[die.GetDIE()] = DIE_IS_BEING_PARSED;
+                    bool byte_size_valid = false;
+
+                    const size_t num_attributes = die.GetAttributes(attributes);
+                    if (num_attributes > 0)
+                    {
+                        uint32_t i;
+                        for (i = 0; i < num_attributes; ++i)
+                        {
+                            attr = attributes.AttributeAtIndex(i);
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                            {
+                                switch (attr)
+                                {
+                                    case DW_AT_name:
+                                        type_name_cstr = form_value.AsCString();
+                                        type_name_const_str.SetCString(type_name_cstr);
+                                        break;
+
+                                    case DW_AT_byte_size:
+                                        byte_size = form_value.Unsigned();
+                                        byte_size_valid = true;
+                                        break;
+
+                                    case DW_AT_go_kind:
+                                        go_kind = form_value.Unsigned();
+                                        break;
+
+                                    // TODO: Should we use SLICETYPE's DW_AT_go_elem?
+                                    default:
+                                        break;
+                                }
+                            }
+                        }
+                    }
+
+                    // TODO(ribrdb): Do we need this?
+
+                    // UniqueDWARFASTType is large, so don't create a local variables on the
+                    // stack, put it on the heap. This function is often called recursively
+                    // and clang isn't good and sharing the stack space for variables in different blocks.
+                    std::unique_ptr<UniqueDWARFASTType> unique_ast_entry_ap(new UniqueDWARFASTType());
+
+                    // Only try and unique the type if it has a name.
+                    if (type_name_const_str &&
+                        dwarf->GetUniqueDWARFASTTypeMap().Find(type_name_const_str, die, decl,
+                                                               byte_size_valid ? byte_size : -1, *unique_ast_entry_ap))
+                    {
+                        // We have already parsed this type or from another
+                        // compile unit. GCC loves to use the "one definition
+                        // rule" which can result in multiple definitions
+                        // of the same class over and over in each compile
+                        // unit.
+                        type_sp = unique_ast_entry_ap->m_type_sp;
+                        if (type_sp)
+                        {
+                            dwarf->m_die_to_type[die.GetDIE()] = type_sp.get();
+                            return type_sp;
+                        }
+                    }
+
+                    DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\")\n", dwarf->MakeUserID(die.GetOffset()),
+                                 DW_TAG_value_to_name(tag), type_name_cstr);
+
+                    bool compiler_type_was_created = false;
+                    compiler_type.SetCompilerType(&m_ast, dwarf->m_forward_decl_die_to_clang_type.lookup(die.GetDIE()));
+                    if (!compiler_type)
+                    {
+                        compiler_type_was_created = true;
+                        compiler_type = m_ast.CreateStructType(go_kind, type_name_const_str, byte_size);
+                    }
+
+                    type_sp.reset(new Type(dwarf->MakeUserID(die.GetOffset()), dwarf, type_name_const_str, byte_size,
+                                           NULL, LLDB_INVALID_UID, Type::eEncodingIsUID, &decl, compiler_type,
+                                           Type::eResolveStateForward));
+
+                    // Add our type to the unique type map so we don't
+                    // end up creating many copies of the same type over
+                    // and over in the ASTContext for our module
+                    unique_ast_entry_ap->m_type_sp = type_sp;
+                    unique_ast_entry_ap->m_die = die;
+                    unique_ast_entry_ap->m_declaration = decl;
+                    unique_ast_entry_ap->m_byte_size = byte_size;
+                    dwarf->GetUniqueDWARFASTTypeMap().Insert(type_name_const_str, *unique_ast_entry_ap);
+
+                    if (!is_forward_declaration)
+                    {
+                        // Always start the definition for a class type so that
+                        // if the class has child classes or types that require
+                        // the class to be created for use as their decl contexts
+                        // the class will be ready to accept these child definitions.
+                        if (die.HasChildren() == false)
+                        {
+                            // No children for this struct/union/class, lets finish it
+                            m_ast.CompleteStructType(compiler_type);
+                        }
+                        else if (compiler_type_was_created)
+                        {
+                            // Leave this as a forward declaration until we need
+                            // to know the details of the type. lldb_private::Type
+                            // will automatically call the SymbolFile virtual function
+                            // "SymbolFileDWARF::CompleteType(Type *)"
+                            // When the definition needs to be defined.
+                            dwarf->m_forward_decl_die_to_clang_type[die.GetDIE()] = compiler_type.GetOpaqueQualType();
+                            dwarf->m_forward_decl_clang_type_to_die[compiler_type.GetOpaqueQualType()] = die.GetDIERef();
+                            // SetHasExternalStorage (compiler_type.GetOpaqueQualType(), true);
+                        }
+                    }
+                }
+                break;
+
+                case DW_TAG_subprogram:
+                case DW_TAG_subroutine_type:
+                {
+                    // Set a bit that lets us know that we are currently parsing this
+                    dwarf->m_die_to_type[die.GetDIE()] = DIE_IS_BEING_PARSED;
+
+                    bool is_variadic = false;
+                    clang::StorageClass storage = clang::SC_None; //, Extern, Static, PrivateExtern
+
+                    const size_t num_attributes = die.GetAttributes(attributes);
+                    if (num_attributes > 0)
+                    {
+                        uint32_t i;
+                        for (i = 0; i < num_attributes; ++i)
+                        {
+                            attr = attributes.AttributeAtIndex(i);
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                            {
+                                switch (attr)
+                                {
+                                    case DW_AT_name:
+                                        type_name_cstr = form_value.AsCString();
+                                        type_name_const_str.SetCString(type_name_cstr);
+                                        break;
+
+                                    case DW_AT_external:
+                                        if (form_value.Unsigned())
+                                        {
+                                            if (storage == clang::SC_None)
+                                                storage = clang::SC_Extern;
+                                            else
+                                                storage = clang::SC_PrivateExtern;
+                                        }
+                                        break;
+
+                                    case DW_AT_high_pc:
+                                    case DW_AT_low_pc:
+                                        break;
+                                }
+                            }
+                        }
+                    }
+
+                    DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\")\n", dwarf->MakeUserID(die.GetOffset()),
+                                 DW_TAG_value_to_name(tag), type_name_cstr);
+
+                    std::vector<CompilerType> function_param_types;
+
+                    // Parse the function children for the parameters
+
+                    if (die.HasChildren())
+                    {
+                        ParseChildParameters(sc, die, is_variadic, function_param_types);
+                    }
+
+                    // compiler_type will get the function prototype clang type after this call
+                    compiler_type = m_ast.CreateFunctionType(type_name_const_str, function_param_types.data(),
+                                                          function_param_types.size(), is_variadic);
+
+                    type_sp.reset(new Type(dwarf->MakeUserID(die.GetOffset()), dwarf, type_name_const_str, 0, NULL,
+                                           LLDB_INVALID_UID, Type::eEncodingIsUID, &decl, compiler_type,
+                                           Type::eResolveStateFull));
+                    assert(type_sp.get());
+                }
+                break;
+
+                case DW_TAG_array_type:
+                {
+                    // Set a bit that lets us know that we are currently parsing this
+                    dwarf->m_die_to_type[die.GetDIE()] = DIE_IS_BEING_PARSED;
+
+                    lldb::user_id_t type_die_offset = DW_INVALID_OFFSET;
+                    int64_t first_index = 0;
+                    uint32_t byte_stride = 0;
+                    uint32_t bit_stride = 0;
+                    const size_t num_attributes = die.GetAttributes(attributes);
+
+                    if (num_attributes > 0)
+                    {
+                        uint32_t i;
+                        for (i = 0; i < num_attributes; ++i)
+                        {
+                            attr = attributes.AttributeAtIndex(i);
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                            {
+                                switch (attr)
+                                {
+                                    case DW_AT_name:
+                                        type_name_cstr = form_value.AsCString();
+                                        type_name_const_str.SetCString(type_name_cstr);
+                                        break;
+
+                                    case DW_AT_type:
+                                        type_die_offset = form_value.Reference();
+                                        break;
+                                    case DW_AT_byte_size:
+                                        break; // byte_size = form_value.Unsigned(); break;
+                                    case DW_AT_go_kind:
+                                        go_kind = form_value.Unsigned();
+                                        break;
+                                    default:
+                                        break;
+                                }
+                            }
+                        }
+
+                        DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\")\n", dwarf->MakeUserID(die.GetOffset()),
+                                     DW_TAG_value_to_name(tag), type_name_cstr);
+
+                        Type *element_type = dwarf->ResolveTypeUID(type_die_offset);
+
+                        if (element_type)
+                        {
+                            std::vector<uint64_t> element_orders;
+                            ParseChildArrayInfo(sc, die, first_index, element_orders, byte_stride, bit_stride);
+                            if (byte_stride == 0)
+                                byte_stride = element_type->GetByteSize();
+                            CompilerType array_element_type = element_type->GetForwardCompilerType();
+                            if (element_orders.size() > 0)
+                            {
+                                if (element_orders.size() > 1)
+                                    printf("golang: unsupported multi-dimensional array %s\n", type_name_cstr);
+                                compiler_type =
+                                    m_ast.CreateArrayType(type_name_const_str, array_element_type, element_orders[0]);
+                            }
+                            else
+                            {
+                                compiler_type = m_ast.CreateArrayType(type_name_const_str, array_element_type, 0);
+                            }
+                            type_sp.reset(new Type(dwarf->MakeUserID(die.GetOffset()), dwarf, type_name_const_str,
+                                                   byte_stride, NULL, type_die_offset, Type::eEncodingIsUID, &decl,
+                                                   compiler_type, Type::eResolveStateFull));
+                            type_sp->SetEncodingType(element_type);
+                        }
+                    }
+                }
+                break;
+
+                default:
+                    dwarf->GetObjectFile()->GetModule()->ReportError("{0x%8.8x}: unhandled type tag 0x%4.4x (%s), "
+                                                                     "please file a bug and attach the file at the "
+                                                                     "start of this error message",
+                                                                     die.GetOffset(), tag, DW_TAG_value_to_name(tag));
+                    break;
+            }
+
+            if (type_sp.get())
+            {
+                DWARFDIE sc_parent_die = SymbolFileDWARF::GetParentSymbolContextDIE(die);
+                dw_tag_t sc_parent_tag = sc_parent_die.Tag();
+
+                SymbolContextScope *symbol_context_scope = NULL;
+                if (sc_parent_tag == DW_TAG_compile_unit)
+                {
+                    symbol_context_scope = sc.comp_unit;
+                }
+                else if (sc.function != NULL && sc_parent_die)
+                {
+                    symbol_context_scope =
+                        sc.function->GetBlock(true).FindBlockByID(dwarf->MakeUserID(sc_parent_die.GetOffset()));
+                    if (symbol_context_scope == NULL)
+                        symbol_context_scope = sc.function;
+                }
+
+                if (symbol_context_scope != NULL)
+                {
+                    type_sp->SetSymbolContextScope(symbol_context_scope);
+                }
+
+                // We are ready to put this type into the uniqued list up at the module level
+                type_list->Insert(type_sp);
+
+                dwarf->m_die_to_type[die.GetDIE()] = type_sp.get();
+            }
+        }
+        else if (type_ptr != DIE_IS_BEING_PARSED)
+        {
+            type_sp = type_ptr->shared_from_this();
+        }
+    }
+    return type_sp;
+}
+
+size_t
+DWARFASTParserGo::ParseChildParameters(const SymbolContext &sc,
+
+                                       const DWARFDIE &parent_die, bool &is_variadic,
+                                       std::vector<CompilerType> &function_param_types)
+{
+    if (!parent_die)
+        return 0;
+
+    size_t arg_idx = 0;
+    for (DWARFDIE die = parent_die.GetFirstChild(); die.IsValid(); die = die.GetSibling())
+    {
+
+        dw_tag_t tag = die.Tag();
+        switch (tag)
+        {
+            case DW_TAG_formal_parameter:
+            {
+                DWARFAttributes attributes;
+                const size_t num_attributes = die.GetAttributes(attributes);
+                if (num_attributes > 0)
+                {
+                    Declaration decl;
+                    dw_offset_t param_type_die_offset = DW_INVALID_OFFSET;
+
+                    uint32_t i;
+                    for (i = 0; i < num_attributes; ++i)
+                    {
+                        const dw_attr_t attr = attributes.AttributeAtIndex(i);
+                        DWARFFormValue form_value;
+                        if (attributes.ExtractFormValueAtIndex(i, form_value))
+                        {
+                            switch (attr)
+                            {
+                                case DW_AT_name:
+                                    // = form_value.AsCString();
+                                    break;
+                                case DW_AT_type:
+                                    param_type_die_offset = form_value.Reference();
+                                    break;
+                                case DW_AT_location:
+                                //                          if (form_value.BlockData())
+                                //                          {
+                                //                              const DWARFDataExtractor& debug_info_data =
+                                //                              debug_info();
+                                //                              uint32_t block_length = form_value.Unsigned();
+                                //                              DWARFDataExtractor location(debug_info_data,
+                                //                              form_value.BlockData() - debug_info_data.GetDataStart(),
+                                //                              block_length);
+                                //                          }
+                                //                          else
+                                //                          {
+                                //                          }
+                                //                          break;
+                                default:
+                                    break;
+                            }
+                        }
+                    }
+
+                    Type *type = parent_die.ResolveTypeUID(param_type_die_offset);
+                    if (type)
+                    {
+                        function_param_types.push_back(type->GetForwardCompilerType());
+                    }
+                }
+                arg_idx++;
+            }
+            break;
+
+            case DW_TAG_unspecified_parameters:
+                is_variadic = true;
+                break;
+
+            default:
+                break;
+        }
+    }
+    return arg_idx;
+}
+
+void
+DWARFASTParserGo::ParseChildArrayInfo(const SymbolContext &sc, const DWARFDIE &parent_die, int64_t &first_index,
+                                      std::vector<uint64_t> &element_orders, uint32_t &byte_stride,
+                                      uint32_t &bit_stride)
+{
+    if (!parent_die)
+        return;
+
+    for (DWARFDIE die = parent_die.GetFirstChild(); die.IsValid(); die = die.GetSibling())
+    {
+        const dw_tag_t tag = die.Tag();
+        switch (tag)
+        {
+            case DW_TAG_subrange_type:
+            {
+                DWARFAttributes attributes;
+                const size_t num_child_attributes = die.GetAttributes(attributes);
+                if (num_child_attributes > 0)
+                {
+                    uint64_t num_elements = 0;
+                    uint32_t i;
+                    for (i = 0; i < num_child_attributes; ++i)
+                    {
+                        const dw_attr_t attr = attributes.AttributeAtIndex(i);
+                        DWARFFormValue form_value;
+                        if (attributes.ExtractFormValueAtIndex(i, form_value))
+                        {
+                            switch (attr)
+                            {
+                                case DW_AT_count:
+                                    num_elements = form_value.Unsigned();
+                                    break;
+
+                                default:
+                                case DW_AT_type:
+                                    break;
+                            }
+                        }
+                    }
+
+                    element_orders.push_back(num_elements);
+                }
+            }
+            break;
+        }
+    }
+}
+
+bool
+DWARFASTParserGo::CompleteTypeFromDWARF(const DWARFDIE &die, lldb_private::Type *type, CompilerType &compiler_type)
+{
+    if (!die)
+        return false;
+
+    const dw_tag_t tag = die.Tag();
+
+    SymbolFileDWARF *dwarf = die.GetDWARF();
+    Log *log = nullptr; // (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO|DWARF_LOG_TYPE_COMPLETION));
+    if (log)
+        dwarf->GetObjectFile()->GetModule()->LogMessageVerboseBacktrace(
+            log, "0x%8.8" PRIx64 ": %s '%s' resolving forward declaration...", dwarf->MakeUserID(die.GetOffset()),
+            DW_TAG_value_to_name(tag), type->GetName().AsCString());
+    assert(compiler_type);
+    DWARFAttributes attributes;
+
+    switch (tag)
+    {
+        case DW_TAG_structure_type:
+        {
+            {
+                if (die.HasChildren())
+                {
+                    SymbolContext sc(die.GetLLDBCompileUnit());
+
+                    ParseChildMembers(sc, die, compiler_type);
+                }
+            }
+            m_ast.CompleteStructType(compiler_type);
+            return (bool)compiler_type;
+        }
+
+        default:
+            assert(false && "not a forward go type decl!");
+            break;
+    }
+
+    return false;
+}
+
+size_t
+DWARFASTParserGo::ParseChildMembers(const SymbolContext &sc, const DWARFDIE &parent_die, CompilerType &class_compiler_type)
+{
+    size_t count = 0;
+    uint32_t member_idx = 0;
+
+    ModuleSP module_sp = parent_die.GetDWARF()->GetObjectFile()->GetModule();
+    GoASTContext *ast = llvm::dyn_cast_or_null<GoASTContext>(class_compiler_type.GetTypeSystem());
+    if (ast == nullptr)
+        return 0;
+
+    for (DWARFDIE die = parent_die.GetFirstChild(); die.IsValid(); die = die.GetSibling())
+    {
+        dw_tag_t tag = die.Tag();
+
+        switch (tag)
+        {
+            case DW_TAG_member:
+            {
+                DWARFAttributes attributes;
+                const size_t num_attributes = die.GetAttributes(attributes);
+                if (num_attributes > 0)
+                {
+                    Declaration decl;
+                    const char *name = NULL;
+
+                    lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
+                    uint32_t member_byte_offset = UINT32_MAX;
+                    uint32_t i;
+                    for (i = 0; i < num_attributes; ++i)
+                    {
+                        const dw_attr_t attr = attributes.AttributeAtIndex(i);
+                        DWARFFormValue form_value;
+                        if (attributes.ExtractFormValueAtIndex(i, form_value))
+                        {
+                            switch (attr)
+                            {
+                                case DW_AT_name:
+                                    name = form_value.AsCString();
+                                    break;
+                                case DW_AT_type:
+                                    encoding_uid = form_value.Reference();
+                                    break;
+                                case DW_AT_data_member_location:
+                                    if (form_value.BlockData())
+                                    {
+                                        Value initialValue(0);
+                                        Value memberOffset(0);
+                                        const DWARFDataExtractor &debug_info_data =
+                                            die.GetDWARF()->get_debug_info_data();
+                                        uint32_t block_length = form_value.Unsigned();
+                                        uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
+                                        if (DWARFExpression::Evaluate(NULL, // ExecutionContext *
+                                                                      NULL, // ClangExpressionVariableList *
+                                                                      NULL, // ClangExpressionDeclMap *
+                                                                      NULL, // RegisterContext *
+                                                                      module_sp, debug_info_data, die.GetCU(),
+                                                                      block_offset, block_length, eRegisterKindDWARF,
+                                                                      &initialValue, memberOffset, NULL))
+                                        {
+                                            member_byte_offset = memberOffset.ResolveValue(NULL).UInt();
+                                        }
+                                    }
+                                    else
+                                    {
+                                        // With DWARF 3 and later, if the value is an integer constant,
+                                        // this form value is the offset in bytes from the beginning
+                                        // of the containing entity.
+                                        member_byte_offset = form_value.Unsigned();
+                                    }
+                                    break;
+
+                                default:
+                                    break;
+                            }
+                        }
+                    }
+
+                    Type *member_type = die.ResolveTypeUID(encoding_uid);
+                    if (member_type)
+                    {
+                        CompilerType member_go_type = member_type->GetFullCompilerType();
+                        ConstString name_const_str(name);
+                        m_ast.AddFieldToStruct(class_compiler_type, name_const_str, member_go_type, member_byte_offset);
+                    }
+                }
+                ++member_idx;
+            }
+            break;
+
+            default:
+                break;
+        }
+    }
+
+    return count;
+}
+
+Function *
+DWARFASTParserGo::ParseFunctionFromDWARF(const SymbolContext &sc, const DWARFDIE &die)
+{
+    DWARFRangeList func_ranges;
+    const char *name = NULL;
+    const char *mangled = NULL;
+    int decl_file = 0;
+    int decl_line = 0;
+    int decl_column = 0;
+    int call_file = 0;
+    int call_line = 0;
+    int call_column = 0;
+    DWARFExpression frame_base(die.GetCU());
+
+    assert(die.Tag() == DW_TAG_subprogram);
+
+    if (die.Tag() != DW_TAG_subprogram)
+        return NULL;
+
+    if (die.GetDIENamesAndRanges(name, mangled, func_ranges, decl_file, decl_line, decl_column, call_file, call_line,
+                                 call_column, &frame_base))
+    {
+        // Union of all ranges in the function DIE (if the function is discontiguous)
+        AddressRange func_range;
+        lldb::addr_t lowest_func_addr = func_ranges.GetMinRangeBase(0);
+        lldb::addr_t highest_func_addr = func_ranges.GetMaxRangeEnd(0);
+        if (lowest_func_addr != LLDB_INVALID_ADDRESS && lowest_func_addr <= highest_func_addr)
+        {
+            ModuleSP module_sp(die.GetModule());
+            func_range.GetBaseAddress().ResolveAddressUsingFileSections(lowest_func_addr, module_sp->GetSectionList());
+            if (func_range.GetBaseAddress().IsValid())
+                func_range.SetByteSize(highest_func_addr - lowest_func_addr);
+        }
+
+        if (func_range.GetBaseAddress().IsValid())
+        {
+            Mangled func_name;
+            func_name.SetValue(ConstString(name), false);
+
+            FunctionSP func_sp;
+            std::unique_ptr<Declaration> decl_ap;
+            if (decl_file != 0 || decl_line != 0 || decl_column != 0)
+                decl_ap.reset(new Declaration(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(decl_file), decl_line,
+                                              decl_column));
+
+            SymbolFileDWARF *dwarf = die.GetDWARF();
+            // Supply the type _only_ if it has already been parsed
+            Type *func_type = dwarf->m_die_to_type.lookup(die.GetDIE());
+
+            assert(func_type == NULL || func_type != DIE_IS_BEING_PARSED);
+
+            if (dwarf->FixupAddress(func_range.GetBaseAddress()))
+            {
+                const user_id_t func_user_id = dwarf->MakeUserID(die.GetOffset());
+                func_sp.reset(new Function(sc.comp_unit,
+                                           dwarf->MakeUserID(func_user_id), // UserID is the DIE offset
+                                           dwarf->MakeUserID(func_user_id), func_name, func_type,
+                                           func_range)); // first address range
+
+                if (func_sp.get() != NULL)
+                {
+                    if (frame_base.IsValid())
+                        func_sp->GetFrameBaseExpression() = frame_base;
+                    sc.comp_unit->AddFunction(func_sp);
+                    return func_sp.get();
+                }
+            }
+        }
+    }
+    return NULL;
+}
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFASTParserGo.h b/source/Plugins/SymbolFile/DWARF/DWARFASTParserGo.h
new file mode 100644
index 0000000000000..5039fc7f76725
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DWARFASTParserGo.h
@@ -0,0 +1,84 @@
+//===-- DWARFASTParserGo.h --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SymbolFileDWARF_DWARFASTParserGo_h_
+#define SymbolFileDWARF_DWARFASTParserGo_h_
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/ADT/SmallVector.h"
+
+// Project includes
+#include "lldb/Core/PluginInterface.h"
+#include "lldb/Symbol/GoASTContext.h"
+#include "DWARFDefines.h"
+#include "DWARFASTParser.h"
+#include "DWARFDIE.h"
+
+class DWARFDebugInfoEntry;
+class DWARFDIECollection;
+
+class DWARFASTParserGo : public DWARFASTParser
+{
+public:
+    DWARFASTParserGo(lldb_private::GoASTContext &ast);
+
+    ~DWARFASTParserGo() override;
+
+    lldb::TypeSP ParseTypeFromDWARF(const lldb_private::SymbolContext &sc, const DWARFDIE &die, lldb_private::Log *log,
+                                    bool *type_is_new_ptr) override;
+
+    lldb_private::Function *
+    ParseFunctionFromDWARF(const lldb_private::SymbolContext &sc,
+                           const DWARFDIE &die) override;
+
+    bool
+    CompleteTypeFromDWARF(const DWARFDIE &die, lldb_private::Type *type,
+                          lldb_private::CompilerType &go_type) override;
+
+    lldb_private::CompilerDeclContext
+    GetDeclContextForUIDFromDWARF(const DWARFDIE &die) override
+    {
+        return lldb_private::CompilerDeclContext();
+    }
+
+    lldb_private::CompilerDeclContext
+    GetDeclContextContainingUIDFromDWARF(const DWARFDIE &die) override
+    {
+        return lldb_private::CompilerDeclContext();
+    }
+
+    lldb_private::CompilerDecl
+    GetDeclForUIDFromDWARF (const DWARFDIE &die) override
+    {
+        return lldb_private::CompilerDecl();
+    }
+
+    std::vector<DWARFDIE>
+    GetDIEForDeclContext (lldb_private::CompilerDeclContext decl_context) override
+    {
+        return std::vector<DWARFDIE>();
+    }
+
+private:
+    size_t ParseChildParameters(const lldb_private::SymbolContext &sc, const DWARFDIE &parent_die, bool &is_variadic,
+                                std::vector<lldb_private::CompilerType> &function_param_types);
+    void ParseChildArrayInfo(const lldb_private::SymbolContext &sc, const DWARFDIE &parent_die, int64_t &first_index,
+                             std::vector<uint64_t> &element_orders, uint32_t &byte_stride, uint32_t &bit_stride);
+
+    size_t ParseChildMembers(const lldb_private::SymbolContext &sc, const DWARFDIE &die,
+                             lldb_private::CompilerType &class_compiler_type);
+
+    lldb_private::GoASTContext &m_ast;
+};
+
+#endif // SymbolFileDWARF_DWARFASTParserGo_h_
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFAttribute.cpp b/source/Plugins/SymbolFile/DWARF/DWARFAttribute.cpp
new file mode 100644
index 0000000000000..a522bcb35288e
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DWARFAttribute.cpp
@@ -0,0 +1,90 @@
+//===-- DWARFAttribute.cpp --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "DWARFAttribute.h"
+#include "DWARFDebugInfo.h"
+#include "DWARFCompileUnit.h"
+
+DWARFAttributes::DWARFAttributes() :
+    m_infos()
+{
+}
+
+DWARFAttributes::~DWARFAttributes()
+{
+}
+
+
+uint32_t
+DWARFAttributes::FindAttributeIndex(dw_attr_t attr) const
+{
+    collection::const_iterator end = m_infos.end();
+    collection::const_iterator beg = m_infos.begin();
+    collection::const_iterator pos;
+    for (pos = beg; pos != end; ++pos)
+    {
+        if (pos->attr.get_attr() == attr)
+            return std::distance(beg, pos);
+    }
+    return UINT32_MAX;
+}
+
+void
+DWARFAttributes::Append(const DWARFCompileUnit *cu, dw_offset_t attr_die_offset, dw_attr_t attr, dw_form_t form)
+{
+    AttributeValue attr_value = { cu, attr_die_offset, { attr, form } };
+    m_infos.push_back(attr_value);
+}
+
+bool
+DWARFAttributes::ContainsAttribute(dw_attr_t attr) const
+{
+    return FindAttributeIndex(attr) != UINT32_MAX;
+}
+
+bool
+DWARFAttributes::RemoveAttribute(dw_attr_t attr)
+{
+    uint32_t attr_index = FindAttributeIndex(attr);
+    if (attr_index != UINT32_MAX)
+    {
+        m_infos.erase(m_infos.begin() + attr_index);
+        return true;
+    }
+    return false;
+}
+
+bool
+DWARFAttributes::ExtractFormValueAtIndex (uint32_t i, DWARFFormValue &form_value) const
+{
+    const DWARFCompileUnit *cu = CompileUnitAtIndex(i);
+    form_value.SetCompileUnit(cu);
+    form_value.SetForm(FormAtIndex(i));
+    lldb::offset_t offset = DIEOffsetAtIndex(i);
+    return form_value.ExtractValue(cu->GetSymbolFileDWARF()->get_debug_info_data(), &offset);
+}
+
+uint64_t
+DWARFAttributes::FormValueAsUnsigned (dw_attr_t attr, uint64_t fail_value) const
+{
+    const uint32_t attr_idx = FindAttributeIndex (attr);
+    if (attr_idx != UINT32_MAX)
+        return FormValueAsUnsignedAtIndex (attr_idx, fail_value);
+    return fail_value;
+}
+
+uint64_t
+DWARFAttributes::FormValueAsUnsignedAtIndex(uint32_t i, uint64_t fail_value) const
+{
+    DWARFFormValue form_value;
+    if (ExtractFormValueAtIndex(i, form_value))
+        return form_value.Reference();
+    return fail_value;
+}
+
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFAttribute.h b/source/Plugins/SymbolFile/DWARF/DWARFAttribute.h
index 40c8af3d6e8ec..f5ca9cce525e8 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFAttribute.h
+++ b/source/Plugins/SymbolFile/DWARF/DWARFAttribute.h
@@ -10,36 +10,72 @@
 #ifndef SymbolFileDWARF_DWARFAttribute_h_
 #define SymbolFileDWARF_DWARFAttribute_h_
 
+#include "llvm/ADT/SmallVector.h"
 #include "DWARFDefines.h"
 #include <vector>
 
+class DWARFCompileUnit;
+class DWARFFormValue;
+
 class DWARFAttribute
 {
 public:
     DWARFAttribute(dw_attr_t attr, dw_form_t form) :
-        m_attr_form ( attr << 16 | form )
+        m_attr (attr),
+        m_form (form)
     {
     }
 
-    void        set(dw_attr_t attr, dw_form_t form) { m_attr_form = (attr << 16) | form; }
-    void        set_attr(dw_attr_t attr) { m_attr_form = (m_attr_form & 0x0000ffffu) | (attr << 16); }
-    void        set_form(dw_form_t form) { m_attr_form = (m_attr_form & 0xffff0000u) | form; }
-    dw_attr_t   get_attr() const { return m_attr_form >> 16; }
-    dw_form_t   get_form() const { return (dw_form_t)m_attr_form; }
-    void        get(dw_attr_t& attr, dw_form_t& form)  const
+    void        set (dw_attr_t attr, dw_form_t form) { m_attr = attr; m_form = form; }
+    void        set_attr (dw_attr_t attr) { m_attr = attr; }
+    void        set_form (dw_form_t form) { m_form = form; }
+    dw_attr_t   get_attr () const { return m_attr; }
+    dw_form_t   get_form () const { return m_form; }
+    void        get (dw_attr_t& attr, dw_form_t& form)  const
     {
-        uint32_t attr_form = m_attr_form;
-        attr = attr_form >> 16;
-        form = (dw_form_t)attr_form;
+        attr = m_attr;
+        form = m_form;
     }
-    bool        operator == (const DWARFAttribute& rhs) const { return m_attr_form == rhs.m_attr_form; }
+    bool operator == (const DWARFAttribute& rhs) const { return m_attr == rhs.m_attr && m_form == rhs.m_form; }
     typedef std::vector<DWARFAttribute> collection;
     typedef collection::iterator iterator;
     typedef collection::const_iterator const_iterator;
 
 protected:
-    uint32_t    m_attr_form;    // Upper 16 bits is attribute, lower 16 bits is form
+    dw_attr_t m_attr;
+    dw_form_t m_form;
 };
 
 
+class DWARFAttributes
+{
+public:
+    DWARFAttributes();
+    ~DWARFAttributes();
+
+    void Append(const DWARFCompileUnit *cu, dw_offset_t attr_die_offset, dw_attr_t attr, dw_form_t form);
+    const DWARFCompileUnit * CompileUnitAtIndex(uint32_t i) const { return m_infos[i].cu; }
+    dw_offset_t DIEOffsetAtIndex(uint32_t i) const { return m_infos[i].die_offset; }
+    dw_attr_t AttributeAtIndex(uint32_t i) const { return m_infos[i].attr.get_attr(); }
+    dw_attr_t FormAtIndex(uint32_t i) const { return m_infos[i].attr.get_form(); }
+    bool ExtractFormValueAtIndex (uint32_t i, DWARFFormValue &form_value) const;
+    uint64_t FormValueAsUnsignedAtIndex (uint32_t i, uint64_t fail_value) const;
+    uint64_t FormValueAsUnsigned (dw_attr_t attr, uint64_t fail_value) const;
+    uint32_t FindAttributeIndex(dw_attr_t attr) const;
+    bool ContainsAttribute(dw_attr_t attr) const;
+    bool RemoveAttribute(dw_attr_t attr);
+    void Clear() { m_infos.clear(); }
+    size_t Size() const { return m_infos.size(); }
+
+protected:
+    struct AttributeValue
+    {
+        const DWARFCompileUnit *cu; // Keep the compile unit with each attribute in case we have DW_FORM_ref_addr values
+        dw_offset_t die_offset;
+        DWARFAttribute attr;
+    };
+    typedef llvm::SmallVector<AttributeValue, 8> collection;
+    collection m_infos;
+};
+
 #endif  // SymbolFileDWARF_DWARFAttribute_h_
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFCompileUnit.cpp b/source/Plugins/SymbolFile/DWARF/DWARFCompileUnit.cpp
index 60933108c97a4..e7cb2b413ad7a 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFCompileUnit.cpp
+++ b/source/Plugins/SymbolFile/DWARF/DWARFCompileUnit.cpp
@@ -12,12 +12,13 @@
 #include "lldb/Core/Mangled.h"
 #include "lldb/Core/Module.h"
 #include "lldb/Core/Stream.h"
+#include "lldb/Core/StreamString.h"
 #include "lldb/Core/Timer.h"
 #include "lldb/Host/StringConvert.h"
 #include "lldb/Symbol/CompileUnit.h"
 #include "lldb/Symbol/LineTable.h"
 #include "lldb/Symbol/ObjectFile.h"
-#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "Plugins/Language/ObjC/ObjCLanguage.h"
 
 #include "DWARFDebugAbbrev.h"
 #include "DWARFDebugAranges.h"
@@ -27,6 +28,7 @@
 #include "LogChannelDWARF.h"
 #include "NameToDIE.h"
 #include "SymbolFileDWARF.h"
+#include "SymbolFileDWARFDwo.h"
 #include "SymbolFileDWARFDebugMap.h"
 
 using namespace lldb;
@@ -52,10 +54,16 @@ DWARFCompileUnit::DWARFCompileUnit(SymbolFileDWARF* dwarf2Data) :
     m_producer_version_minor (0),
     m_producer_version_update (0),
     m_language_type (eLanguageTypeUnknown),
-    m_is_dwarf64    (false)
+    m_is_dwarf64    (false),
+    m_is_optimized  (eLazyBoolCalculate),
+    m_addr_base (0),
+    m_base_obj_offset (DW_INVALID_OFFSET)
 {
 }
 
+DWARFCompileUnit::~DWARFCompileUnit()
+{}
+
 void
 DWARFCompileUnit::Clear()
 {
@@ -71,6 +79,9 @@ DWARFCompileUnit::Clear()
     m_producer      = eProducerInvalid;
     m_language_type = eLanguageTypeUnknown;
     m_is_dwarf64    = false;
+    m_is_optimized  = eLazyBoolCalculate;
+    m_addr_base     = 0;
+    m_base_obj_offset = DW_INVALID_OFFSET;
 }
 
 bool
@@ -128,6 +139,9 @@ DWARFCompileUnit::ClearDIEs(bool keep_compile_unit_die)
         if (keep_compile_unit_die)
             m_die_array.push_back(tmp_array.front());
     }
+
+    if (m_dwo_symbol_file)
+        m_dwo_symbol_file->GetCompileUnit()->ClearDIEs(keep_compile_unit_die);
 }
 
 //----------------------------------------------------------------------
@@ -174,7 +188,8 @@ DWARFCompileUnit::ExtractDIEsIfNeeded (bool cu_die_only)
     die_index_stack.reserve(32);
     die_index_stack.push_back(0);
     bool prev_die_had_children = false;
-    const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (GetAddressByteSize(), m_is_dwarf64);
+    DWARFFormValue::FixedFormSizes fixed_form_sizes =
+        DWARFFormValue::GetFixedFormSizesForAddressSize (GetAddressByteSize(), m_is_dwarf64);
     while (offset < next_cu_offset &&
            die.FastExtract (debug_info_data, this, fixed_form_sizes, &offset))
     {
@@ -188,12 +203,12 @@ DWARFCompileUnit::ExtractDIEsIfNeeded (bool cu_die_only)
         const bool null_die = die.IsNULL();
         if (depth == 0)
         {
-            uint64_t base_addr = die.GetAttributeValueAsUnsigned(m_dwarf2Data, this, DW_AT_low_pc, LLDB_INVALID_ADDRESS);
+            if (initial_die_array_size == 0)
+                AddCompileUnitDIE(die);
+            uint64_t base_addr = die.GetAttributeValueAsAddress(m_dwarf2Data, this, DW_AT_low_pc, LLDB_INVALID_ADDRESS);
             if (base_addr == LLDB_INVALID_ADDRESS)
-                base_addr = die.GetAttributeValueAsUnsigned(m_dwarf2Data, this, DW_AT_entry_pc, 0);
+                base_addr = die.GetAttributeValueAsAddress(m_dwarf2Data, this, DW_AT_entry_pc, 0);
             SetBaseAddress (base_addr);
-            if (initial_die_array_size == 0)
-                AddDIE (die);
             if (cu_die_only)
                 return 1;
         }
@@ -283,9 +298,83 @@ DWARFCompileUnit::ExtractDIEsIfNeeded (bool cu_die_only)
         verbose_log->PutCString (strm.GetString().c_str());
     }
 
-    return m_die_array.size();
+    if (!m_dwo_symbol_file)
+        return m_die_array.size();
+
+    DWARFCompileUnit* dwo_cu = m_dwo_symbol_file->GetCompileUnit();
+    size_t dwo_die_count = dwo_cu->ExtractDIEsIfNeeded(cu_die_only);
+    return m_die_array.size() + dwo_die_count - 1; // We have 2 CU die, but we waht to count it only as one
 }
 
+void
+DWARFCompileUnit::AddCompileUnitDIE(DWARFDebugInfoEntry& die)
+{
+    assert (m_die_array.empty() && "Compile unit DIE already added");
+    AddDIE(die);
+    
+    DWARFDebugInfoEntry& cu_die = m_die_array.front();
+
+    const char* dwo_name = cu_die.GetAttributeValueAsString(m_dwarf2Data,
+                                                            this,
+                                                            DW_AT_GNU_dwo_name,
+                                                            nullptr);
+    if (!dwo_name)
+        return;
+
+    FileSpec dwo_file(dwo_name, true);
+    if (dwo_file.IsRelative())
+    {
+        const char* comp_dir = cu_die.GetAttributeValueAsString(m_dwarf2Data,
+                                                                this,
+                                                                DW_AT_comp_dir,
+                                                                nullptr);
+        if (!comp_dir)
+            return;
+
+        dwo_file.SetFile(comp_dir, true);
+        dwo_file.AppendPathComponent(dwo_name);
+    }
+
+    if (!dwo_file.Exists())
+        return;
+
+    DataBufferSP dwo_file_data_sp;
+    lldb::offset_t dwo_file_data_offset = 0;
+    ObjectFileSP dwo_obj_file = ObjectFile::FindPlugin(m_dwarf2Data->GetObjectFile()->GetModule(),
+                                                       &dwo_file,
+                                                       0 /* file_offset */,
+                                                       dwo_file.GetByteSize(),
+                                                       dwo_file_data_sp,
+                                                       dwo_file_data_offset);
+    if (dwo_obj_file == nullptr)
+        return;
+
+    std::unique_ptr<SymbolFileDWARFDwo> dwo_symbol_file(new SymbolFileDWARFDwo(dwo_obj_file, this));
+
+    DWARFCompileUnit* dwo_cu = dwo_symbol_file->GetCompileUnit();
+    if (!dwo_cu)
+        return; // Can't fetch the compile unit from the dwo file.
+
+    DWARFDIE dwo_cu_die = dwo_cu->GetCompileUnitDIEOnly();
+    if (!dwo_cu_die.IsValid())
+        return; // Can't fetch the compile unit DIE from the dwo file.
+
+    uint64_t main_dwo_id = cu_die.GetAttributeValueAsUnsigned(m_dwarf2Data,
+                                                              this,
+                                                              DW_AT_GNU_dwo_id,
+                                                              0);
+    uint64_t sub_dwo_id = dwo_cu_die.GetAttributeValueAsUnsigned(DW_AT_GNU_dwo_id, 0);
+    if (main_dwo_id != sub_dwo_id)
+        return; // The 2 dwo ID isn't match. Don't use the dwo file as it belongs to a differectn compilation.
+
+    m_dwo_symbol_file = std::move(dwo_symbol_file);
+    
+    dw_addr_t addr_base = cu_die.GetAttributeValueAsUnsigned(m_dwarf2Data,
+                                                             this,
+                                                             DW_AT_GNU_addr_base,
+                                                             0);
+    dwo_cu->SetAddrBase(addr_base, m_offset);
+}
 
 dw_offset_t
 DWARFCompileUnit::GetAbbrevOffset() const
@@ -373,6 +462,16 @@ DWARFCompileUnit::SetDefaultAddressSize(uint8_t addr_size)
     g_default_addr_size = addr_size;
 }
 
+lldb::user_id_t
+DWARFCompileUnit::GetID () const
+{
+    dw_offset_t local_id = m_base_obj_offset != DW_INVALID_OFFSET ? m_base_obj_offset : m_offset;
+    if (m_dwarf2Data)
+        return m_dwarf2Data->MakeUserID(local_id);
+    else
+        return local_id;
+}
+
 void
 DWARFCompileUnit::BuildAddressRangeTable (SymbolFileDWARF* dwarf2Data,
                                           DWARFDebugAranges* debug_aranges)
@@ -381,13 +480,15 @@ DWARFCompileUnit::BuildAddressRangeTable (SymbolFileDWARF* dwarf2Data,
     // in order to produce a compile unit level set of address ranges that
     // is accurate.
     
+    size_t num_debug_aranges = debug_aranges->GetNumRanges();
+    
     // First get the compile unit DIE only and check if it has a DW_AT_ranges
-    const DWARFDebugInfoEntry* die = GetCompileUnitDIEOnly();
+    const DWARFDebugInfoEntry* die = GetCompileUnitDIEPtrOnly();
     
     const dw_offset_t cu_offset = GetOffset();
     if (die)
     {
-        DWARFDebugRanges::RangeList ranges;
+        DWARFRangeList ranges;
         const size_t num_ranges = die->GetAttributeAddressRanges(dwarf2Data, this, ranges, false);
         if (num_ranges > 0)
         {
@@ -397,7 +498,7 @@ DWARFCompileUnit::BuildAddressRangeTable (SymbolFileDWARF* dwarf2Data,
             // this with recent GCC builds.
             for (size_t i=0; i<num_ranges; ++i)
             {
-                const DWARFDebugRanges::RangeList::Entry &range = ranges.GetEntryRef(i);
+                const DWARFRangeList::Entry &range = ranges.GetEntryRef(i);
                 debug_aranges->AppendRange(cu_offset, range.GetRangeBase(), range.GetRangeEnd());
             }
             
@@ -411,11 +512,11 @@ DWARFCompileUnit::BuildAddressRangeTable (SymbolFileDWARF* dwarf2Data,
     // and then throwing them all away to keep memory usage down.
     const bool clear_dies = ExtractDIEsIfNeeded (false) > 1;
     
-    die = DIE();
+    die = DIEPtr();
     if (die)
         die->BuildAddressRangeTable(dwarf2Data, this, debug_aranges);
     
-    if (debug_aranges->IsEmpty())
+    if (debug_aranges->GetNumRanges() == num_debug_aranges)
     {
         // We got nothing from the functions, maybe we have a line tables only
         // situation. Check the line tables and build the arange table from this.
@@ -437,7 +538,6 @@ DWARFCompileUnit::BuildAddressRangeTable (SymbolFileDWARF* dwarf2Data,
                     {
                         const LineTable::FileAddressRanges::Entry &range = file_ranges.GetEntryRef(idx);
                         debug_aranges->AppendRange(cu_offset, range.GetRangeBase(), range.GetRangeEnd());
-                        printf ("0x%8.8x: [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n", GetOffset(), range.GetRangeBase(), range.GetRangeEnd());
                     }
                 }
             }
@@ -446,7 +546,7 @@ DWARFCompileUnit::BuildAddressRangeTable (SymbolFileDWARF* dwarf2Data,
         }
     }
     
-    if (debug_aranges->IsEmpty())
+    if (debug_aranges->GetNumRanges() == num_debug_aranges)
     {
         // We got nothing from the functions, maybe we have a line tables only
         // situation. Check the line tables and build the arange table from this.
@@ -465,7 +565,6 @@ DWARFCompileUnit::BuildAddressRangeTable (SymbolFileDWARF* dwarf2Data,
                 {
                     const LineTable::FileAddressRanges::Entry &range = file_ranges.GetEntryRef(idx);
                     debug_aranges->AppendRange(GetOffset(), range.GetRangeBase(), range.GetRangeEnd());
-                    printf ("0x%8.8x: [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n", GetOffset(), range.GetRangeBase(), range.GetRangeEnd());
                 }
             }
         }
@@ -493,119 +592,85 @@ DWARFCompileUnit::GetFunctionAranges ()
                                                                     "DWARFCompileUnit::GetFunctionAranges() for compile unit at .debug_info[0x%8.8x]",
                                                                     GetOffset());
         }
-        const DWARFDebugInfoEntry* die = DIE();
+        const DWARFDebugInfoEntry* die = DIEPtr();
         if (die)
             die->BuildFunctionAddressRangeTable (m_dwarf2Data, this, m_func_aranges_ap.get());
+
+        if (m_dwo_symbol_file)
+        {
+            DWARFCompileUnit* dwo_cu = m_dwo_symbol_file->GetCompileUnit();
+            const DWARFDebugInfoEntry* dwo_die = dwo_cu->DIEPtr();
+            if (dwo_die)
+                dwo_die->BuildFunctionAddressRangeTable (m_dwo_symbol_file.get(),
+                                                         dwo_cu,
+                                                         m_func_aranges_ap.get());
+        }
+        
         const bool minimize = false;
         m_func_aranges_ap->Sort(minimize);
     }
     return *m_func_aranges_ap.get();
 }
 
-bool
-DWARFCompileUnit::LookupAddress
-(
-    const dw_addr_t address,
-    DWARFDebugInfoEntry** function_die_handle,
-    DWARFDebugInfoEntry** block_die_handle
-)
+DWARFDIE
+DWARFCompileUnit::LookupAddress (const dw_addr_t address)
 {
-    bool success = false;
-
-    if (function_die_handle != NULL && DIE())
+    if (DIE())
     {
-
         const DWARFDebugAranges &func_aranges = GetFunctionAranges ();
 
         // Re-check the aranges auto pointer contents in case it was created above
         if (!func_aranges.IsEmpty())
-        {
-            *function_die_handle = GetDIEPtr(func_aranges.FindAddress(address));
-            if (*function_die_handle != NULL)
-            {
-                success = true;
-                if (block_die_handle != NULL)
-                {
-                    DWARFDebugInfoEntry* child = (*function_die_handle)->GetFirstChild();
-                    while (child)
-                    {
-                        if (child->LookupAddress(address, m_dwarf2Data, this, NULL, block_die_handle))
-                            break;
-                        child = child->GetSibling();
-                    }
-                }
-            }
-        }
+            return GetDIE(func_aranges.FindAddress(address));
     }
-    return success;
+    return DWARFDIE();
 }
 
 //----------------------------------------------------------------------
 // Compare function DWARFDebugAranges::Range structures
 //----------------------------------------------------------------------
-static bool CompareDIEOffset (const DWARFDebugInfoEntry& die1, const DWARFDebugInfoEntry& die2)
+static bool CompareDIEOffset (const DWARFDebugInfoEntry& die, const dw_offset_t die_offset)
 {
-    return die1.GetOffset() < die2.GetOffset();
+    return die.GetOffset() < die_offset;
 }
 
 //----------------------------------------------------------------------
-// GetDIEPtr()
+// GetDIE()
 //
-// Get the DIE (Debug Information Entry) with the specified offset.
+// Get the DIE (Debug Information Entry) with the specified offset by
+// first checking if the DIE is contained within this compile unit and
+// grabbing the DIE from this compile unit. Otherwise we grab the DIE
+// from the DWARF file.
 //----------------------------------------------------------------------
-DWARFDebugInfoEntry*
-DWARFCompileUnit::GetDIEPtr(dw_offset_t die_offset)
+DWARFDIE
+DWARFCompileUnit::GetDIE (dw_offset_t die_offset)
 {
     if (die_offset != DW_INVALID_OFFSET)
     {
-        ExtractDIEsIfNeeded (false);
-        DWARFDebugInfoEntry compare_die;
-        compare_die.SetOffset(die_offset);
-        DWARFDebugInfoEntry::iterator end = m_die_array.end();
-        DWARFDebugInfoEntry::iterator pos = lower_bound(m_die_array.begin(), end, compare_die, CompareDIEOffset);
-        if (pos != end)
-        {
-            if (die_offset == (*pos).GetOffset())
-                return &(*pos);
-        }
-    }
-    return NULL;    // Not found in any compile units
-}
+        if (m_dwo_symbol_file)
+            return m_dwo_symbol_file->GetCompileUnit()->GetDIE(die_offset);
 
-//----------------------------------------------------------------------
-// GetDIEPtrContainingOffset()
-//
-// Get the DIE (Debug Information Entry) that contains the specified
-// .debug_info offset.
-//----------------------------------------------------------------------
-const DWARFDebugInfoEntry*
-DWARFCompileUnit::GetDIEPtrContainingOffset(dw_offset_t die_offset)
-{
-    if (die_offset != DW_INVALID_OFFSET)
-    {
-        ExtractDIEsIfNeeded (false);
-        DWARFDebugInfoEntry compare_die;
-        compare_die.SetOffset(die_offset);
-        DWARFDebugInfoEntry::iterator end = m_die_array.end();
-        DWARFDebugInfoEntry::iterator pos = lower_bound(m_die_array.begin(), end, compare_die, CompareDIEOffset);
-        if (pos != end)
+        if (ContainsDIEOffset(die_offset))
         {
-            if (die_offset >= (*pos).GetOffset())
+            ExtractDIEsIfNeeded (false);
+            DWARFDebugInfoEntry::iterator end = m_die_array.end();
+            DWARFDebugInfoEntry::iterator pos = lower_bound(m_die_array.begin(), end, die_offset, CompareDIEOffset);
+            if (pos != end)
             {
-                DWARFDebugInfoEntry::iterator next = pos + 1;
-                if (next != end)
-                {
-                    if (die_offset < (*next).GetOffset())
-                        return &(*pos);
-                }
+                if (die_offset == (*pos).GetOffset())
+                    return DWARFDIE(this, &(*pos));
             }
         }
+        else
+        {
+            // Don't specify the compile unit offset as we don't know it because the DIE belongs to
+            // a different compile unit in the same symbol file.
+            return m_dwarf2Data->DebugInfo()->GetDIE (DIERef(die_offset));
+        }
     }
-    return NULL;    // Not found in any compile units
+    return DWARFDIE(); // Not found
 }
 
-
-
 size_t
 DWARFCompileUnit::AppendDIEsWithTag (const dw_tag_t tag, DWARFDIECollection& dies, uint32_t depth) const
 {
@@ -615,7 +680,7 @@ DWARFCompileUnit::AppendDIEsWithTag (const dw_tag_t tag, DWARFDIECollection& die
     for (pos = m_die_array.begin(); pos != end; ++pos)
     {
         if (pos->Tag() == tag)
-            dies.Append (&(*pos));
+            dies.Append (DWARFDIE(this, &(*pos)));
     }
 
     // Return the number of DIEs added to the collection
@@ -646,8 +711,7 @@ DWARFCompileUnit::AppendDIEsWithTag (const dw_tag_t tag, DWARFDIECollection& die
 
 
 void
-DWARFCompileUnit::Index (const uint32_t cu_idx,
-                         NameToDIE& func_basenames,
+DWARFCompileUnit::Index (NameToDIE& func_basenames,
                          NameToDIE& func_fullnames,
                          NameToDIE& func_methods,
                          NameToDIE& func_selectors,
@@ -656,10 +720,6 @@ DWARFCompileUnit::Index (const uint32_t cu_idx,
                          NameToDIE& types,
                          NameToDIE& namespaces)
 {
-    const DWARFDataExtractor* debug_str = &m_dwarf2Data->get_debug_str_data();
-
-    const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (GetAddressByteSize(), m_is_dwarf64);
-
     Log *log (LogChannelDWARF::GetLogIfAll (DWARF_LOG_LOOKUPS));
     
     if (log)
@@ -670,9 +730,57 @@ DWARFCompileUnit::Index (const uint32_t cu_idx,
     }
 
     const LanguageType cu_language = GetLanguageType();
+    DWARFFormValue::FixedFormSizes fixed_form_sizes =
+        DWARFFormValue::GetFixedFormSizesForAddressSize (GetAddressByteSize(), m_is_dwarf64);
+    
+    IndexPrivate(this,
+                 cu_language,
+                 fixed_form_sizes,
+                 GetOffset(),
+                 func_basenames,
+                 func_fullnames,
+                 func_methods,
+                 func_selectors,
+                 objc_class_selectors,
+                 globals,
+                 types,
+                 namespaces);
+
+    SymbolFileDWARFDwo* dwo_symbol_file = GetDwoSymbolFile();
+    if (dwo_symbol_file)
+    {
+        IndexPrivate(dwo_symbol_file->GetCompileUnit(),
+                     cu_language,
+                     fixed_form_sizes,
+                     GetOffset(),
+                     func_basenames,
+                     func_fullnames,
+                     func_methods,
+                     func_selectors,
+                     objc_class_selectors,
+                     globals,
+                     types,
+                     namespaces);
+    }
+}
+
+void
+DWARFCompileUnit::IndexPrivate (DWARFCompileUnit* dwarf_cu,
+                                const LanguageType cu_language,
+                                const DWARFFormValue::FixedFormSizes& fixed_form_sizes,
+                                const dw_offset_t cu_offset,
+                                NameToDIE& func_basenames,
+                                NameToDIE& func_fullnames,
+                                NameToDIE& func_methods,
+                                NameToDIE& func_selectors,
+                                NameToDIE& objc_class_selectors,
+                                NameToDIE& globals,
+                                NameToDIE& types,
+                                NameToDIE& namespaces)
+{
     DWARFDebugInfoEntry::const_iterator pos;
-    DWARFDebugInfoEntry::const_iterator begin = m_die_array.begin();
-    DWARFDebugInfoEntry::const_iterator end = m_die_array.end();
+    DWARFDebugInfoEntry::const_iterator begin = dwarf_cu->m_die_array.begin();
+    DWARFDebugInfoEntry::const_iterator end = dwarf_cu->m_die_array.end();
     for (pos = begin; pos != end; ++pos)
     {
         const DWARFDebugInfoEntry &die = *pos;
@@ -701,17 +809,17 @@ DWARFCompileUnit::Index (const uint32_t cu_idx,
             continue;
         }
 
-        DWARFDebugInfoEntry::Attributes attributes;
+        DWARFAttributes attributes;
         const char *name = NULL;
         const char *mangled_cstr = NULL;
         bool is_declaration = false;
         //bool is_artificial = false;
         bool has_address = false;
-        bool has_location = false;
+        bool has_location_or_const_value = false;
         bool is_global_or_static_variable = false;
         
-        dw_offset_t specification_die_offset = DW_INVALID_OFFSET;
-        const size_t num_attributes = die.GetAttributes(m_dwarf2Data, this, fixed_form_sizes, attributes);
+        DWARFFormValue specification_die_form;
+        const size_t num_attributes = die.GetAttributes(dwarf_cu, fixed_form_sizes, attributes);
         if (num_attributes > 0)
         {
             for (uint32_t i=0; i<num_attributes; ++i)
@@ -721,24 +829,24 @@ DWARFCompileUnit::Index (const uint32_t cu_idx,
                 switch (attr)
                 {
                 case DW_AT_name:
-                    if (attributes.ExtractFormValueAtIndex(m_dwarf2Data, i, form_value))
-                        name = form_value.AsCString(debug_str);
+                    if (attributes.ExtractFormValueAtIndex(i, form_value))
+                        name = form_value.AsCString();
                     break;
 
                 case DW_AT_declaration:
-                    if (attributes.ExtractFormValueAtIndex(m_dwarf2Data, i, form_value))
+                    if (attributes.ExtractFormValueAtIndex(i, form_value))
                         is_declaration = form_value.Unsigned() != 0;
                     break;
 
 //                case DW_AT_artificial:
-//                    if (attributes.ExtractFormValueAtIndex(m_dwarf2Data, i, form_value))
+//                    if (attributes.ExtractFormValueAtIndex(i, form_value))
 //                        is_artificial = form_value.Unsigned() != 0;
 //                    break;
 
                 case DW_AT_MIPS_linkage_name:
                 case DW_AT_linkage_name:
-                    if (attributes.ExtractFormValueAtIndex(m_dwarf2Data, i, form_value))
-                        mangled_cstr = form_value.AsCString(debug_str);                        
+                    if (attributes.ExtractFormValueAtIndex(i, form_value))
+                        mangled_cstr = form_value.AsCString();
                     break;
 
                 case DW_AT_low_pc:
@@ -752,7 +860,8 @@ DWARFCompileUnit::Index (const uint32_t cu_idx,
                     break;
 
                 case DW_AT_location:
-                    has_location = true;
+                case DW_AT_const_value:
+                    has_location_or_const_value = true;
                     if (tag == DW_TAG_variable)
                     {
                         const DWARFDebugInfoEntry* parent_die = die.GetParent();
@@ -800,8 +909,8 @@ DWARFCompileUnit::Index (const uint32_t cu_idx,
                     break;
                     
                 case DW_AT_specification:
-                    if (attributes.ExtractFormValueAtIndex(m_dwarf2Data, i, form_value))
-                        specification_die_offset = form_value.Reference();
+                    if (attributes.ExtractFormValueAtIndex(i, form_value))
+                        specification_die_form = form_value;
                     break;
                 }
             }
@@ -814,24 +923,22 @@ DWARFCompileUnit::Index (const uint32_t cu_idx,
             {
                 if (name)
                 {
-                    // Note, this check is also done in ParseMethodName, but since this is a hot loop, we do the
-                    // simple inlined check outside the call.
-                    ObjCLanguageRuntime::MethodName objc_method(name, true);
+                    ObjCLanguage::MethodName objc_method(name, true);
                     if (objc_method.IsValid(true))
                     {
                         ConstString objc_class_name_with_category (objc_method.GetClassNameWithCategory());
                         ConstString objc_selector_name (objc_method.GetSelector());
                         ConstString objc_fullname_no_category_name (objc_method.GetFullNameWithoutCategory(true));
                         ConstString objc_class_name_no_category (objc_method.GetClassName());
-                        func_fullnames.Insert (ConstString(name), die.GetOffset());
+                        func_fullnames.Insert (ConstString(name), DIERef(cu_offset, die.GetOffset()));
                         if (objc_class_name_with_category)
-                            objc_class_selectors.Insert(objc_class_name_with_category, die.GetOffset());
+                            objc_class_selectors.Insert(objc_class_name_with_category, DIERef(cu_offset, die.GetOffset()));
                         if (objc_class_name_no_category && objc_class_name_no_category != objc_class_name_with_category)
-                            objc_class_selectors.Insert(objc_class_name_no_category, die.GetOffset());
+                            objc_class_selectors.Insert(objc_class_name_no_category, DIERef(cu_offset, die.GetOffset()));
                         if (objc_selector_name)
-                            func_selectors.Insert (objc_selector_name, die.GetOffset());
+                            func_selectors.Insert (objc_selector_name, DIERef(cu_offset, die.GetOffset()));
                         if (objc_fullname_no_category_name)
-                            func_fullnames.Insert (objc_fullname_no_category_name, die.GetOffset());
+                            func_fullnames.Insert (objc_fullname_no_category_name, DIERef(cu_offset, die.GetOffset()));
                     }
                     // If we have a mangled name, then the DW_AT_name attribute
                     // is usually the method name without the class or any parameters
@@ -846,32 +953,23 @@ DWARFCompileUnit::Index (const uint32_t cu_idx,
                         }
                         else
                         {
-                            if (specification_die_offset != DW_INVALID_OFFSET)
+                            if (specification_die_form.IsValid())
                             {
-                                const DWARFDebugInfoEntry *specification_die = m_dwarf2Data->DebugInfo()->GetDIEPtr (specification_die_offset, NULL);
-                                if (specification_die)
-                                {
-                                    parent = specification_die->GetParent();
-                                    if (parent)
-                                    {
-                                        parent_tag = parent->Tag();
-                                    
-                                        if (parent_tag == DW_TAG_class_type || parent_tag == DW_TAG_structure_type)
-                                            is_method = true;
-                                    }
-                                }
+                                DWARFDIE specification_die = dwarf_cu->GetSymbolFileDWARF()->DebugInfo()->GetDIE (DIERef(specification_die_form));
+                                if (specification_die.GetParent().IsStructOrClass())
+                                    is_method = true;
                             }
                         }
                     }
 
 
                     if (is_method)
-                        func_methods.Insert (ConstString(name), die.GetOffset());
+                        func_methods.Insert (ConstString(name), DIERef(cu_offset, die.GetOffset()));
                     else
-                        func_basenames.Insert (ConstString(name), die.GetOffset());
+                        func_basenames.Insert (ConstString(name), DIERef(cu_offset, die.GetOffset()));
 
                     if (!is_method && !mangled_cstr && !objc_method.IsValid(true))
-                        func_fullnames.Insert (ConstString(name), die.GetOffset());
+                        func_fullnames.Insert (ConstString(name), DIERef(cu_offset, die.GetOffset()));
                 }
                 if (mangled_cstr)
                 {
@@ -882,10 +980,10 @@ DWARFCompileUnit::Index (const uint32_t cu_idx,
                     if (name != mangled_cstr && ((mangled_cstr[0] == '_') || (name && ::strcmp(name, mangled_cstr) != 0)))
                     {
                         Mangled mangled (ConstString(mangled_cstr), true);
-                        func_fullnames.Insert (mangled.GetMangledName(), die.GetOffset());
+                        func_fullnames.Insert (mangled.GetMangledName(), DIERef(cu_offset, die.GetOffset()));
                         ConstString demangled = mangled.GetDemangledName(cu_language);
                         if (demangled)
-                            func_fullnames.Insert (demangled, die.GetOffset());
+                            func_fullnames.Insert (demangled, DIERef(cu_offset, die.GetOffset()));
                     }
                 }
             }
@@ -895,7 +993,7 @@ DWARFCompileUnit::Index (const uint32_t cu_idx,
             if (has_address)
             {
                 if (name)
-                    func_basenames.Insert (ConstString(name), die.GetOffset());
+                    func_basenames.Insert (ConstString(name), DIERef(cu_offset, die.GetOffset()));
                 if (mangled_cstr)
                 {
                     // Make sure our mangled name isn't the same string table entry
@@ -905,14 +1003,14 @@ DWARFCompileUnit::Index (const uint32_t cu_idx,
                     if (name != mangled_cstr && ((mangled_cstr[0] == '_') || (::strcmp(name, mangled_cstr) != 0)))
                     {
                         Mangled mangled (ConstString(mangled_cstr), true);
-                        func_fullnames.Insert (mangled.GetMangledName(), die.GetOffset());
+                        func_fullnames.Insert (mangled.GetMangledName(), DIERef(cu_offset, die.GetOffset()));
                         ConstString demangled = mangled.GetDemangledName(cu_language);
                         if (demangled)
-                            func_fullnames.Insert (demangled, die.GetOffset());
+                            func_fullnames.Insert (demangled, DIERef(cu_offset, die.GetOffset()));
                     }
                 }
                 else
-                    func_fullnames.Insert (ConstString(name), die.GetOffset());
+                    func_fullnames.Insert (ConstString(name), DIERef(cu_offset, die.GetOffset()));
             }
             break;
         
@@ -928,19 +1026,19 @@ DWARFCompileUnit::Index (const uint32_t cu_idx,
         case DW_TAG_unspecified_type:
             if (name && is_declaration == false)
             {
-                types.Insert (ConstString(name), die.GetOffset());
+                types.Insert (ConstString(name), DIERef(cu_offset, die.GetOffset()));
             }
             break;
 
         case DW_TAG_namespace:
             if (name)
-                namespaces.Insert (ConstString(name), die.GetOffset());
+                namespaces.Insert (ConstString(name), DIERef(cu_offset, die.GetOffset()));
             break;
 
         case DW_TAG_variable:
-            if (name && has_location && is_global_or_static_variable)
+            if (name && has_location_or_const_value && is_global_or_static_variable)
             {
-                globals.Insert (ConstString(name), die.GetOffset());
+                globals.Insert (ConstString(name), DIERef(cu_offset, die.GetOffset()));
                 // Be sure to include variables by their mangled and demangled
                 // names if they have any since a variable can have a basename
                 // "i", a mangled named "_ZN12_GLOBAL__N_11iE" and a demangled 
@@ -953,10 +1051,10 @@ DWARFCompileUnit::Index (const uint32_t cu_idx,
                 if (mangled_cstr && name != mangled_cstr && ((mangled_cstr[0] == '_') || (::strcmp(name, mangled_cstr) != 0)))
                 {
                     Mangled mangled (ConstString(mangled_cstr), true);
-                    globals.Insert (mangled.GetMangledName(), die.GetOffset());
+                    globals.Insert (mangled.GetMangledName(), DIERef(cu_offset, die.GetOffset()));
                     ConstString demangled = mangled.GetDemangledName(cu_language);
                     if (demangled)
-                        globals.Insert (demangled, die.GetOffset());
+                        globals.Insert (demangled, DIERef(cu_offset, die.GetOffset()));
                 }
             }
             break;
@@ -1004,7 +1102,7 @@ DWARFCompileUnit::ParseProducerInfo ()
     m_producer_version_minor = UINT32_MAX;
     m_producer_version_update = UINT32_MAX;
 
-    const DWARFDebugInfoEntry *die = GetCompileUnitDIEOnly();
+    const DWARFDebugInfoEntry *die = GetCompileUnitDIEPtrOnly();
     if (die)
     {
 
@@ -1095,10 +1193,9 @@ DWARFCompileUnit::GetLanguageType()
     if (m_language_type != eLanguageTypeUnknown)
         return m_language_type;
 
-    const DWARFDebugInfoEntry *die = GetCompileUnitDIEOnly();
+    const DWARFDebugInfoEntry *die = GetCompileUnitDIEPtrOnly();
     if (die)
-        m_language_type = LanguageTypeFromDWARF(
-            die->GetAttributeValueAsUnsigned(m_dwarf2Data, this, DW_AT_language, 0));
+        m_language_type = LanguageTypeFromDWARF(die->GetAttributeValueAsUnsigned(m_dwarf2Data, this, DW_AT_language, 0));
     return m_language_type;
 }
 
@@ -1108,3 +1205,57 @@ DWARFCompileUnit::IsDWARF64() const
     return m_is_dwarf64;
 }
 
+bool
+DWARFCompileUnit::GetIsOptimized ()
+{
+    if (m_is_optimized == eLazyBoolCalculate)
+    {
+        const DWARFDebugInfoEntry *die = GetCompileUnitDIEPtrOnly();
+        if (die)
+        {
+            m_is_optimized = eLazyBoolNo;
+            if (die->GetAttributeValueAsUnsigned (m_dwarf2Data, this, DW_AT_APPLE_optimized, 0) == 1)
+            {
+                m_is_optimized = eLazyBoolYes;
+            }
+        }
+    }
+    if (m_is_optimized == eLazyBoolYes)
+    {
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+
+DWARFFormValue::FixedFormSizes
+DWARFCompileUnit::GetFixedFormSizes ()
+{
+    return DWARFFormValue::GetFixedFormSizesForAddressSize (GetAddressByteSize(), IsDWARF64());
+}
+
+TypeSystem *
+DWARFCompileUnit::GetTypeSystem ()
+{
+    if (m_dwarf2Data)
+        return m_dwarf2Data->GetTypeSystemForLanguage(GetLanguageType());
+    else
+        return nullptr;
+}
+
+void
+DWARFCompileUnit::SetUserData(void *d)
+{
+    m_user_data = d;
+    if (m_dwo_symbol_file)
+        m_dwo_symbol_file->GetCompileUnit()->SetUserData(d);
+}
+
+void
+DWARFCompileUnit::SetAddrBase(dw_addr_t addr_base, dw_offset_t base_obj_offset)
+{
+    m_addr_base = addr_base;
+    m_base_obj_offset = base_obj_offset;
+}
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFCompileUnit.h b/source/Plugins/SymbolFile/DWARF/DWARFCompileUnit.h
index 93c8df822dcc4..0fcaaca09ed8c 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFCompileUnit.h
+++ b/source/Plugins/SymbolFile/DWARF/DWARFCompileUnit.h
@@ -12,9 +12,11 @@
 
 #include "lldb/lldb-enumerations.h"
 #include "DWARFDebugInfoEntry.h"
-#include "SymbolFileDWARF.h"
+#include "DWARFDIE.h"
 
 class NameToDIE;
+class SymbolFileDWARF;
+class SymbolFileDWARFDwo;
 
 class DWARFCompileUnit
 {
@@ -29,19 +31,17 @@ public:
     };
 
     DWARFCompileUnit(SymbolFileDWARF* dwarf2Data);
+    ~DWARFCompileUnit();
 
     bool        Extract(const lldb_private::DWARFDataExtractor &debug_info, lldb::offset_t *offset_ptr);
     size_t      ExtractDIEsIfNeeded (bool cu_die_only);
-    bool        LookupAddress(
-                    const dw_addr_t address,
-                    DWARFDebugInfoEntry** function_die,
-                    DWARFDebugInfoEntry** block_die);
-
+    DWARFDIE    LookupAddress(const dw_addr_t address);
     size_t      AppendDIEsWithTag (const dw_tag_t tag, DWARFDIECollection& matching_dies, uint32_t depth = UINT32_MAX) const;
     void        Clear();
     bool        Verify(lldb_private::Stream *s) const;
     void        Dump(lldb_private::Stream *s) const;
     dw_offset_t GetOffset() const { return m_offset; }
+    lldb::user_id_t GetID () const;
     uint32_t    Size() const { return m_is_dwarf64 ? 23 : 11; /* Size in bytes of the compile unit header */ }
     bool        ContainsDIEOffset(dw_offset_t die_offset) const { return die_offset >= GetFirstDIEOffset() && die_offset < GetNextCompileUnitOffset(); }
     dw_offset_t GetFirstDIEOffset() const { return m_offset + Size(); }
@@ -53,32 +53,35 @@ public:
     dw_offset_t GetAbbrevOffset() const;
     uint8_t     GetAddressByteSize() const { return m_addr_size; }
     dw_addr_t   GetBaseAddress() const { return m_base_addr; }
+    dw_addr_t   GetAddrBase() const { return m_addr_base; }
+    void        SetAddrBase(dw_addr_t addr_base, dw_offset_t base_obj_offset);
     void        ClearDIEs(bool keep_compile_unit_die);
     void        BuildAddressRangeTable (SymbolFileDWARF* dwarf2Data,
                                         DWARFDebugAranges* debug_aranges);
 
+
+    lldb_private::TypeSystem *
+                GetTypeSystem();
+
+    DWARFFormValue::FixedFormSizes
+                GetFixedFormSizes ();
+
     void
     SetBaseAddress(dw_addr_t base_addr)
     {
         m_base_addr = base_addr;
     }
 
-    const DWARFDebugInfoEntry*
+    DWARFDIE
     GetCompileUnitDIEOnly()
     {
-        ExtractDIEsIfNeeded (true);
-        if (m_die_array.empty())
-            return NULL;
-        return &m_die_array[0];
+        return DWARFDIE(this, GetCompileUnitDIEPtrOnly());
     }
 
-    const DWARFDebugInfoEntry*
-    DIE()
+    DWARFDIE
+    DIE ()
     {
-        ExtractDIEsIfNeeded (false);
-        if (m_die_array.empty())
-            return NULL;
-        return &m_die_array[0];
+        return DWARFDIE(this, DIEPtr());
     }
 
     void
@@ -97,6 +100,9 @@ public:
             m_die_array.reserve(GetDebugInfoSize() / 24);
         m_die_array.push_back(die);
     }
+    
+    void
+    AddCompileUnitDIE (DWARFDebugInfoEntry& die);
 
     bool
     HasDIEsParsed () const
@@ -104,17 +110,8 @@ public:
         return m_die_array.size() > 1;
     }
 
-    DWARFDebugInfoEntry*
-    GetDIEAtIndexUnchecked (uint32_t idx)
-    {
-        return &m_die_array[idx];
-    }
-
-    DWARFDebugInfoEntry*
-    GetDIEPtr (dw_offset_t die_offset);
-
-    const DWARFDebugInfoEntry*
-    GetDIEPtrContainingOffset (dw_offset_t die_offset);
+    DWARFDIE
+    GetDIE (dw_offset_t die_offset);
 
     static uint8_t
     GetAddressByteSize(const DWARFCompileUnit* cu);
@@ -135,10 +132,7 @@ public:
     }
 
     void
-    SetUserData(void *d)
-    {
-        m_user_data = d;
-    }
+    SetUserData(void *d);
 
     bool
     Supports_DW_AT_APPLE_objc_complete_type ();
@@ -149,15 +143,8 @@ public:
     bool
     Supports_unnamed_objc_bitfields ();
 
-//    void
-//    AddGlobalDIEByIndex (uint32_t die_idx);
-//
-//    void
-//    AddGlobal (const DWARFDebugInfoEntry* die);
-//
     void
-    Index (const uint32_t cu_idx,
-           NameToDIE& func_basenames,
+    Index (NameToDIE& func_basenames,
            NameToDIE& func_fullnames,
            NameToDIE& func_methods,
            NameToDIE& func_selectors,
@@ -196,8 +183,24 @@ public:
     bool
     IsDWARF64() const;
 
+    bool
+    GetIsOptimized ();
+
+    SymbolFileDWARFDwo*
+    GetDwoSymbolFile() const
+    {
+        return m_dwo_symbol_file.get();
+    }
+
+    dw_offset_t
+    GetBaseObjOffset() const
+    {
+        return m_base_obj_offset;
+    }
+
 protected:
     SymbolFileDWARF*    m_dwarf2Data;
+    std::unique_ptr<SymbolFileDWARFDwo> m_dwo_symbol_file;
     const DWARFAbbreviationDeclarationSet *m_abbrevs;
     void *              m_user_data;
     DWARFDebugInfoEntry::collection m_die_array;    // The compile unit debug information entry item
@@ -213,10 +216,49 @@ protected:
     uint32_t            m_producer_version_update;
     lldb::LanguageType  m_language_type;
     bool                m_is_dwarf64;
-    
+    lldb_private::LazyBool m_is_optimized;
+    dw_addr_t           m_addr_base;       // Value of DW_AT_addr_base
+    dw_offset_t         m_base_obj_offset; // If this is a dwo compile unit this is the offset of
+                                           // the base compile unit in the main object file
+
     void
     ParseProducerInfo ();
+
+    static void
+    IndexPrivate (DWARFCompileUnit* dwarf_cu,
+                  const lldb::LanguageType cu_language,
+                  const DWARFFormValue::FixedFormSizes& fixed_form_sizes,
+                  const dw_offset_t cu_offset,
+                  NameToDIE& func_basenames,
+                  NameToDIE& func_fullnames,
+                  NameToDIE& func_methods,
+                  NameToDIE& func_selectors,
+                  NameToDIE& objc_class_selectors,
+                  NameToDIE& globals,
+                  NameToDIE& types,
+                  NameToDIE& namespaces);
+
 private:
+
+    const DWARFDebugInfoEntry*
+    GetCompileUnitDIEPtrOnly()
+    {
+        ExtractDIEsIfNeeded (true);
+        if (m_die_array.empty())
+            return NULL;
+        return &m_die_array[0];
+    }
+
+    const DWARFDebugInfoEntry*
+    DIEPtr()
+    {
+        ExtractDIEsIfNeeded (false);
+        if (m_die_array.empty())
+            return NULL;
+        return &m_die_array[0];
+    }
+
+
     DISALLOW_COPY_AND_ASSIGN (DWARFCompileUnit);
 };
 
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDIE.cpp b/source/Plugins/SymbolFile/DWARF/DWARFDIE.cpp
new file mode 100644
index 0000000000000..0564de9e5dd1f
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDIE.cpp
@@ -0,0 +1,543 @@
+//===-- DWARFDIE.cpp --------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "DWARFDIE.h"
+
+#include "DWARFCompileUnit.h"
+#include "DWARFDebugAbbrev.h"
+#include "DWARFDebugAranges.h"
+#include "DWARFDebugInfo.h"
+#include "DWARFDebugInfoEntry.h"
+#include "DWARFDebugRanges.h"
+#include "DWARFDeclContext.h"
+#include "DWARFDIECollection.h"
+#include "DWARFFormValue.h"
+#include "SymbolFileDWARF.h"
+
+#include "lldb/Core/Module.h"
+#include "lldb/Symbol/ObjectFile.h"
+#include "lldb/Symbol/Type.h"
+#include "lldb/Symbol/TypeSystem.h"
+
+using namespace lldb_private;
+
+DIERef
+DWARFDIE::GetDIERef() const
+{
+    if (!IsValid())
+        return DIERef();
+
+    dw_offset_t cu_offset = m_cu->GetOffset();
+    if (m_cu->GetBaseObjOffset() != DW_INVALID_OFFSET)
+        cu_offset = m_cu->GetBaseObjOffset();
+    return DIERef(cu_offset, m_die->GetOffset());
+}
+
+dw_tag_t
+DWARFDIE::Tag() const
+{
+    if (m_die)
+        return m_die->Tag();
+    else
+        return 0;
+}
+
+const char *
+DWARFDIE::GetTagAsCString () const
+{
+    return lldb_private::DW_TAG_value_to_name (Tag());
+}
+
+DWARFDIE
+DWARFDIE::GetParent () const
+{
+    if (IsValid())
+        return DWARFDIE(m_cu, m_die->GetParent());
+    else
+        return DWARFDIE();
+}
+
+DWARFDIE
+DWARFDIE::GetFirstChild () const
+{
+    if (IsValid())
+        return DWARFDIE(m_cu, m_die->GetFirstChild());
+    else
+        return DWARFDIE();
+}
+
+DWARFDIE
+DWARFDIE::GetSibling () const
+{
+    if (IsValid())
+        return DWARFDIE(m_cu, m_die->GetSibling());
+    else
+        return DWARFDIE();
+}
+
+DWARFDIE
+DWARFDIE::GetReferencedDIE (const dw_attr_t attr) const
+{
+    const dw_offset_t die_offset = GetAttributeValueAsReference (attr, DW_INVALID_OFFSET);
+    if (die_offset != DW_INVALID_OFFSET)
+        return GetDIE(die_offset);
+    else
+        return DWARFDIE();
+}
+
+DWARFDIE
+DWARFDIE::GetDIE (dw_offset_t die_offset) const
+{
+    if (IsValid())
+        return m_cu->GetDIE(die_offset);
+    else
+        return DWARFDIE();
+}
+
+const char *
+DWARFDIE::GetAttributeValueAsString (const dw_attr_t attr, const char *fail_value) const
+{
+    if (IsValid())
+        return m_die->GetAttributeValueAsString(GetDWARF(), GetCU(), attr, fail_value);
+    else
+        return fail_value;
+}
+
+uint64_t
+DWARFDIE::GetAttributeValueAsUnsigned (const dw_attr_t attr, uint64_t fail_value) const
+{
+    if (IsValid())
+        return m_die->GetAttributeValueAsUnsigned(GetDWARF(), GetCU(), attr, fail_value);
+    else
+        return fail_value;
+}
+
+int64_t
+DWARFDIE::GetAttributeValueAsSigned (const dw_attr_t attr, int64_t fail_value) const
+{
+    if (IsValid())
+        return m_die->GetAttributeValueAsSigned(GetDWARF(), GetCU(), attr, fail_value);
+    else
+        return fail_value;
+}
+
+uint64_t
+DWARFDIE::GetAttributeValueAsReference (const dw_attr_t attr, uint64_t fail_value) const
+{
+    if (IsValid())
+        return m_die->GetAttributeValueAsReference(GetDWARF(), GetCU(), attr, fail_value);
+    else
+        return fail_value;
+}
+
+uint64_t
+DWARFDIE::GetAttributeValueAsAddress (const dw_attr_t attr, uint64_t fail_value) const
+{
+    if (IsValid())
+        return m_die->GetAttributeValueAsAddress(GetDWARF(), GetCU(), attr, fail_value);
+    else
+        return fail_value;
+}
+
+
+DWARFDIE
+DWARFDIE::LookupDeepestBlock (lldb::addr_t file_addr) const
+{
+    if (IsValid())
+    {
+        SymbolFileDWARF *dwarf= GetDWARF();
+        DWARFCompileUnit *cu = GetCU();
+        DWARFDebugInfoEntry* function_die = nullptr;
+        DWARFDebugInfoEntry* block_die = nullptr;
+        if (m_die->LookupAddress (file_addr,
+                                  dwarf,
+                                  cu,
+                                  &function_die,
+                                  &block_die))
+        {
+            if (block_die && block_die != function_die)
+            {
+                if (cu->ContainsDIEOffset(block_die->GetOffset()))
+                    return DWARFDIE(cu, block_die);
+                else
+                    return DWARFDIE(dwarf->DebugInfo()->GetCompileUnitContainingDIE(DIERef(cu->GetOffset(), block_die->GetOffset())), block_die);
+            }
+        }
+    }
+    return DWARFDIE();
+}
+
+lldb::user_id_t
+DWARFDIE::GetID () const
+{
+    const dw_offset_t die_offset = GetOffset();
+    if (die_offset != DW_INVALID_OFFSET)
+    {
+        lldb::user_id_t id = 0;
+        SymbolFileDWARF *dwarf = GetDWARF();
+        if (dwarf)
+            id = dwarf->MakeUserID(die_offset);
+        else
+            id = die_offset;
+
+        if (m_cu)
+        {
+            lldb::user_id_t cu_id = m_cu->GetID()&0xffffffff00000000ull;
+            assert ((id&0xffffffff00000000ull) == 0 ||
+                    (cu_id&0xffffffff00000000ll) == 0 ||
+                    (id&0xffffffff00000000ull) == (cu_id&0xffffffff00000000ll));
+            id |= cu_id;
+        }
+        return id;
+    }
+    return LLDB_INVALID_UID;
+}
+
+const char *
+DWARFDIE::GetName () const
+{
+    if (IsValid())
+        return m_die->GetName (GetDWARF(), m_cu);
+    else
+        return nullptr;
+}
+
+const char *
+DWARFDIE::GetMangledName () const
+{
+    if (IsValid())
+        return m_die->GetMangledName (GetDWARF(), m_cu);
+    else
+        return nullptr;
+}
+
+const char *
+DWARFDIE::GetPubname () const
+{
+    if (IsValid())
+        return m_die->GetPubname (GetDWARF(), m_cu);
+    else
+        return nullptr;
+}
+
+const char *
+DWARFDIE::GetQualifiedName (std::string &storage) const
+{
+    if (IsValid())
+        return m_die->GetQualifiedName (GetDWARF(), m_cu, storage);
+    else
+        return nullptr;
+}
+
+lldb::LanguageType
+DWARFDIE::GetLanguage () const
+{
+    if (IsValid())
+        return m_cu->GetLanguageType();
+    else
+        return lldb::eLanguageTypeUnknown;
+}
+
+
+lldb::ModuleSP
+DWARFDIE::GetModule () const
+{
+    SymbolFileDWARF *dwarf = GetDWARF();
+    if (dwarf)
+        return dwarf->GetObjectFile()->GetModule();
+    else
+        return lldb::ModuleSP();
+}
+
+lldb_private::CompileUnit *
+DWARFDIE::GetLLDBCompileUnit () const
+{
+    if (IsValid())
+        return GetDWARF()->GetCompUnitForDWARFCompUnit(GetCU());
+    else
+        return nullptr;
+}
+
+lldb_private::Type *
+DWARFDIE::ResolveType () const
+{
+    if (IsValid())
+        return GetDWARF()->ResolveType(*this, true);
+    else
+        return nullptr;
+}
+
+lldb_private::Type *
+DWARFDIE::ResolveTypeUID (lldb::user_id_t uid) const
+{
+    SymbolFileDWARF *dwarf = GetDWARF();
+    if (dwarf)
+        return dwarf->ResolveTypeUID(uid);
+    else
+        return nullptr;
+}
+
+void
+DWARFDIE::GetDeclContextDIEs (DWARFDIECollection &decl_context_dies) const
+{
+    if (IsValid())
+    {
+        DWARFDIE parent_decl_ctx_die = m_die->GetParentDeclContextDIE (GetDWARF(), GetCU());
+        if (parent_decl_ctx_die && parent_decl_ctx_die.GetDIE() != GetDIE())
+        {
+            decl_context_dies.Append(parent_decl_ctx_die);
+            parent_decl_ctx_die.GetDeclContextDIEs (decl_context_dies);
+        }
+    }
+}
+
+void
+DWARFDIE::GetDWARFDeclContext (DWARFDeclContext &dwarf_decl_ctx) const
+{
+    if (IsValid())
+    {
+        m_die->GetDWARFDeclContext (GetDWARF(), GetCU(), dwarf_decl_ctx);
+    }
+    else
+    {
+        dwarf_decl_ctx.Clear();
+    }
+}
+
+void
+DWARFDIE::GetDWOContext (std::vector<CompilerContext> &context) const
+{
+    const dw_tag_t tag = Tag();
+    if (tag == DW_TAG_compile_unit)
+        return;
+    DWARFDIE parent = GetParent();
+    if (parent)
+        parent.GetDWOContext(context);
+    switch (tag)
+    {
+        case DW_TAG_module:
+            context.push_back(CompilerContext(CompilerContextKind::Module, ConstString(GetName())));
+            break;
+        case DW_TAG_namespace:
+            context.push_back(CompilerContext(CompilerContextKind::Namespace, ConstString(GetName())));
+            break;
+        case DW_TAG_structure_type:
+            context.push_back(CompilerContext(CompilerContextKind::Structure, ConstString(GetName())));
+            break;
+        case DW_TAG_union_type:
+            context.push_back(CompilerContext(CompilerContextKind::Union, ConstString(GetName())));
+            break;
+        case DW_TAG_class_type:
+            context.push_back(CompilerContext(CompilerContextKind::Class, ConstString(GetName())));
+            break;
+        case DW_TAG_enumeration_type:
+            context.push_back(CompilerContext(CompilerContextKind::Enumeration, ConstString(GetName())));
+            break;
+        case DW_TAG_subprogram:
+            context.push_back(CompilerContext(CompilerContextKind::Function, ConstString(GetPubname())));
+            break;
+        case DW_TAG_variable:
+            context.push_back(CompilerContext(CompilerContextKind::Variable, ConstString(GetPubname())));
+            break;
+        case DW_TAG_typedef:
+            context.push_back(CompilerContext(CompilerContextKind::Typedef, ConstString(GetName())));
+            break;
+        default:
+            break;
+    }
+}
+
+
+
+DWARFDIE
+DWARFDIE::GetParentDeclContextDIE () const
+{
+    if (IsValid())
+        return m_die->GetParentDeclContextDIE(GetDWARF(), m_cu);
+    else
+        return DWARFDIE();
+}
+
+
+dw_offset_t
+DWARFDIE::GetOffset () const
+{
+    if (IsValid())
+        return m_die->GetOffset();
+    else
+        return DW_INVALID_OFFSET;
+}
+
+dw_offset_t
+DWARFDIE::GetCompileUnitRelativeOffset () const
+{
+    if (IsValid())
+        return m_die->GetOffset() - m_cu->GetOffset();
+    else
+        return DW_INVALID_OFFSET;
+}
+
+SymbolFileDWARF *
+DWARFDIE::GetDWARF () const
+{
+    if (m_cu)
+        return m_cu->GetSymbolFileDWARF();
+    else
+        return nullptr;
+}
+
+lldb_private::TypeSystem *
+DWARFDIE::GetTypeSystem () const
+{
+    if (m_cu)
+        return m_cu->GetTypeSystem();
+    else
+        return nullptr;
+}
+
+DWARFASTParser *
+DWARFDIE::GetDWARFParser () const
+{
+    lldb_private::TypeSystem *type_system = GetTypeSystem ();
+    if (type_system)
+        return type_system->GetDWARFParser();
+    else
+        return nullptr;
+}
+
+bool
+DWARFDIE::IsStructOrClass () const
+{
+    const dw_tag_t tag = Tag();
+    return tag == DW_TAG_class_type || tag == DW_TAG_structure_type;
+}
+
+
+DWARFDIE
+DWARFDIE::GetContainingDWOModuleDIE () const
+{
+    if (IsValid())
+    {
+        DWARFDIE top_module_die;
+        // Now make sure this DIE is scoped in a DW_TAG_module tag and return true if so
+        for (DWARFDIE parent = GetParent(); parent.IsValid(); parent = parent.GetParent())
+        {
+            const dw_tag_t tag = parent.Tag();
+            if (tag == DW_TAG_module)
+                top_module_die = parent;
+            else if (tag == DW_TAG_compile_unit)
+                break;
+        }
+
+        return top_module_die;
+    }
+    return DWARFDIE();
+}
+
+lldb::ModuleSP
+DWARFDIE::GetContainingDWOModule () const
+{
+    if (IsValid())
+    {
+        DWARFDIE dwo_module_die = GetContainingDWOModuleDIE();
+
+        if (dwo_module_die)
+        {
+            const char *module_name = dwo_module_die.GetName();
+            if (module_name)
+                return GetDWARF()->GetDWOModule (lldb_private::ConstString(module_name));
+        }
+    }
+    return lldb::ModuleSP();
+}
+
+bool
+DWARFDIE::HasChildren () const
+{
+    if (m_die)
+        return m_die->HasChildren();
+    else
+        return false;
+}
+
+bool
+DWARFDIE::Supports_DW_AT_APPLE_objc_complete_type () const
+{
+    if (IsValid())
+        return GetDWARF()->Supports_DW_AT_APPLE_objc_complete_type(m_cu);
+    else
+        return false;
+}
+
+size_t
+DWARFDIE::GetAttributes (DWARFAttributes &attributes, uint32_t depth) const
+{
+    if (IsValid())
+    {
+        return m_die->GetAttributes (m_cu,
+                                     m_cu->GetFixedFormSizes(),
+                                     attributes,
+                                     depth);
+    }
+    if (depth == 0)
+        attributes.Clear();
+    return 0;
+}
+
+
+bool
+DWARFDIE::GetDIENamesAndRanges (const char * &name,
+                                const char * &mangled,
+                                DWARFRangeList& ranges,
+                                int& decl_file,
+                                int& decl_line,
+                                int& decl_column,
+                                int& call_file,
+                                int& call_line,
+                                int& call_column,
+                                lldb_private::DWARFExpression *frame_base) const
+{
+    if (IsValid())
+    {
+        return m_die->GetDIENamesAndRanges (GetDWARF(),
+                                            GetCU(),
+                                            name,
+                                            mangled,
+                                            ranges,
+                                            decl_file,
+                                            decl_line,
+                                            decl_column,
+                                            call_file,
+                                            call_line,
+                                            call_column,
+                                            frame_base);
+    }
+    else
+        return false;
+}
+
+void
+DWARFDIE::Dump (lldb_private::Stream *s, const uint32_t recurse_depth) const
+{
+    if (s && IsValid())
+        m_die->Dump (GetDWARF(), GetCU(), *s, recurse_depth);
+}
+
+
+bool operator == (const DWARFDIE &lhs, const DWARFDIE &rhs)
+{
+    return lhs.GetDIE() == rhs.GetDIE() && lhs.GetCU() == rhs.GetCU();
+}
+
+bool operator != (const DWARFDIE &lhs, const DWARFDIE &rhs)
+{
+    return lhs.GetDIE() != rhs.GetDIE() || lhs.GetCU() != rhs.GetCU();
+}
+
+
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDIE.h b/source/Plugins/SymbolFile/DWARF/DWARFDIE.h
new file mode 100644
index 0000000000000..db37a45ad01a8
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDIE.h
@@ -0,0 +1,281 @@
+//===-- DWARFDIE.h ----------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SymbolFileDWARF_DWARFDIE_h_
+#define SymbolFileDWARF_DWARFDIE_h_
+
+#include "lldb/lldb-types.h"
+#include "lldb/Core/dwarf.h"
+
+struct DIERef;
+class DWARFASTParser;
+class DWARFAttributes;
+class DWARFCompileUnit;
+class DWARFDebugInfoEntry;
+class DWARFDeclContext;
+class DWARFDIECollection;
+class SymbolFileDWARF;
+
+class DWARFDIE
+{
+public:
+    DWARFDIE () :
+        m_cu (nullptr),
+        m_die (nullptr)
+    {
+    }
+
+    DWARFDIE (DWARFCompileUnit *cu, DWARFDebugInfoEntry *die) :
+        m_cu (cu),
+        m_die (die)
+    {
+    }
+
+    DWARFDIE (const DWARFCompileUnit *cu, DWARFDebugInfoEntry *die) :
+        m_cu (const_cast<DWARFCompileUnit *>(cu)),
+        m_die (die)
+    {
+    }
+
+    DWARFDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die) :
+        m_cu (cu),
+        m_die (const_cast<DWARFDebugInfoEntry *>(die))
+    {
+    }
+
+    DWARFDIE (const DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die) :
+        m_cu (const_cast<DWARFCompileUnit *>(cu)),
+        m_die (const_cast<DWARFDebugInfoEntry *>(die))
+    {
+    }
+
+    //----------------------------------------------------------------------
+    // Tests
+    //----------------------------------------------------------------------
+    operator bool () const
+    {
+        return IsValid();
+    }
+
+    bool
+    IsValid() const
+    {
+        return m_cu && m_die;
+    }
+
+    bool
+    IsStructOrClass () const;
+
+    bool
+    HasChildren () const;
+
+    bool
+    Supports_DW_AT_APPLE_objc_complete_type () const;
+
+    //----------------------------------------------------------------------
+    // Accessors
+    //----------------------------------------------------------------------
+    SymbolFileDWARF *
+    GetDWARF () const;
+
+    DWARFCompileUnit *
+    GetCU() const
+    {
+        return m_cu;
+    }
+
+    DWARFDebugInfoEntry *
+    GetDIE() const
+    {
+        return m_die;
+    }
+
+    DIERef
+    GetDIERef() const;
+
+    lldb_private::TypeSystem *
+    GetTypeSystem () const;
+
+    DWARFASTParser *
+    GetDWARFParser () const;
+
+    void
+    Set (DWARFCompileUnit *cu, DWARFDebugInfoEntry *die)
+    {
+        if (cu && die)
+        {
+            m_cu = cu;
+            m_die = die;
+        }
+        else
+        {
+            Clear();
+        }
+    }
+
+    void
+    Clear ()
+    {
+        m_cu = nullptr;
+        m_die = nullptr;
+    }
+
+    lldb::ModuleSP
+    GetContainingDWOModule () const;
+
+    DWARFDIE
+    GetContainingDWOModuleDIE () const;
+
+    //----------------------------------------------------------------------
+    // Accessing information about a DIE
+    //----------------------------------------------------------------------
+    dw_tag_t
+    Tag() const;
+
+    const char *
+    GetTagAsCString () const;
+
+    dw_offset_t
+    GetOffset () const;
+
+    dw_offset_t
+    GetCompileUnitRelativeOffset () const;
+
+    //----------------------------------------------------------------------
+    // Get the LLDB user ID for this DIE. This is often just the DIE offset,
+    // but it might have a SymbolFileDWARF::GetID() in the high 32 bits if
+    // we are doing Darwin DWARF in .o file, or DWARF stand alone debug
+    // info.
+    //----------------------------------------------------------------------
+    lldb::user_id_t
+    GetID() const;
+
+    const char *
+    GetName () const;
+
+    const char *
+    GetMangledName () const;
+
+    const char *
+    GetPubname () const;
+
+    const char *
+    GetQualifiedName (std::string &storage) const;
+
+    lldb::LanguageType
+    GetLanguage () const;
+
+    lldb::ModuleSP
+    GetModule () const;
+
+    lldb_private::CompileUnit *
+    GetLLDBCompileUnit () const;
+
+    lldb_private::Type *
+    ResolveType () const;
+
+    // Resolve a type by UID using this DIE's DWARF file
+    lldb_private::Type *
+    ResolveTypeUID (lldb::user_id_t uid) const;
+
+    //----------------------------------------------------------------------
+    // Functions for obtaining DIE relations and references
+    //----------------------------------------------------------------------
+
+    DWARFDIE
+    GetParent () const;
+
+    DWARFDIE
+    GetFirstChild () const;
+
+    DWARFDIE
+    GetSibling () const;
+
+    DWARFDIE
+    GetReferencedDIE (const dw_attr_t attr) const;
+
+    //----------------------------------------------------------------------
+    // Get a another DIE from the same DWARF file as this DIE. This will
+    // check the current DIE's compile unit first to see if "die_offset" is
+    // in the same compile unit, and fall back to checking the DWARF file.
+    //----------------------------------------------------------------------
+    DWARFDIE
+    GetDIE (dw_offset_t die_offset) const;
+
+    DWARFDIE
+    LookupDeepestBlock (lldb::addr_t file_addr) const;
+
+    DWARFDIE
+    GetParentDeclContextDIE () const;
+
+    //----------------------------------------------------------------------
+    // DeclContext related functions
+    //----------------------------------------------------------------------
+    void
+    GetDeclContextDIEs (DWARFDIECollection &decl_context_dies) const;
+
+    void
+    GetDWARFDeclContext (DWARFDeclContext &dwarf_decl_ctx) const;
+
+    void
+    GetDWOContext (std::vector<lldb_private::CompilerContext> &context) const;
+
+    //----------------------------------------------------------------------
+    // Getting attribute values from the DIE.
+    //
+    // GetAttributeValueAsXXX() functions should only be used if you are
+    // looking for one or two attributes on a DIE. If you are trying to
+    // parse all attributes, use GetAttributes (...) instead
+    //----------------------------------------------------------------------
+    const char *
+    GetAttributeValueAsString (const dw_attr_t attr, const char *fail_value) const;
+
+    uint64_t
+    GetAttributeValueAsUnsigned (const dw_attr_t attr, uint64_t fail_value) const;
+
+    int64_t
+    GetAttributeValueAsSigned (const dw_attr_t attr, int64_t fail_value) const;
+
+    uint64_t
+    GetAttributeValueAsReference (const dw_attr_t attr, uint64_t fail_value) const;
+
+    uint64_t
+    GetAttributeValueAsAddress (const dw_attr_t attr, uint64_t fail_value) const;
+
+    size_t
+    GetAttributes (DWARFAttributes &attributes, uint32_t depth = 0) const;
+
+    bool
+    GetDIENamesAndRanges (const char * &name,
+                          const char * &mangled,
+                          DWARFRangeList& ranges,
+                          int& decl_file,
+                          int& decl_line,
+                          int& decl_column,
+                          int& call_file,
+                          int& call_line,
+                          int& call_column,
+                          lldb_private::DWARFExpression *frame_base) const;
+
+    //----------------------------------------------------------------------
+    // Pretty printing
+    //----------------------------------------------------------------------
+
+    void
+    Dump (lldb_private::Stream *s, const uint32_t recurse_depth) const;
+
+protected:
+    DWARFCompileUnit *m_cu;
+    DWARFDebugInfoEntry *m_die;
+};
+
+bool operator == (const DWARFDIE &lhs, const DWARFDIE &rhs);
+bool operator != (const DWARFDIE &lhs, const DWARFDIE &rhs);
+
+#endif  // SymbolFileDWARF_DWARFDIE_h_
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDIECollection.cpp b/source/Plugins/SymbolFile/DWARF/DWARFDIECollection.cpp
index 1beb75d336421..9e021c7185bd6 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFDIECollection.cpp
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDIECollection.cpp
@@ -13,13 +13,11 @@
 
 #include "lldb/Core/Stream.h"
 
-#include "DWARFDebugInfoEntry.h"
-
 using namespace lldb_private;
 using namespace std;
 
 bool
-DWARFDIECollection::Insert(const DWARFDebugInfoEntry *die)
+DWARFDIECollection::Insert(const DWARFDIE &die)
 {
     iterator end_pos = m_dies.end();
     iterator insert_pos = upper_bound(m_dies.begin(), end_pos, die);
@@ -30,17 +28,17 @@ DWARFDIECollection::Insert(const DWARFDebugInfoEntry *die)
 }
 
 void
-DWARFDIECollection::Append (const DWARFDebugInfoEntry *die)
+DWARFDIECollection::Append (const DWARFDIE &die)
 {
     m_dies.push_back (die);
 }
 
-const DWARFDebugInfoEntry *
-DWARFDIECollection::GetDIEPtrAtIndex(uint32_t idx) const
+DWARFDIE
+DWARFDIECollection::GetDIEAtIndex(uint32_t idx) const
 {
     if (idx < m_dies.size())
         return m_dies[idx];
-    return NULL;
+    return DWARFDIE();
 }
 
 
@@ -55,8 +53,6 @@ DWARFDIECollection::Dump(Stream *s, const char* title) const
 {
     if (title && title[0] != '\0')
         s->Printf( "%s\n", title);
-    const_iterator end_pos = m_dies.end();
-    const_iterator pos;
-    for (pos = m_dies.begin(); pos != end_pos; ++pos)
-        s->Printf( "0x%8.8x\n", (*pos)->GetOffset());
+    for (const auto &die : m_dies)
+        s->Printf( "0x%8.8x\n", die.GetOffset());
 }
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDIECollection.h b/source/Plugins/SymbolFile/DWARF/DWARFDIECollection.h
index 173d0a5604d09..e39e1aa4ccda3 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFDIECollection.h
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDIECollection.h
@@ -10,7 +10,7 @@
 #ifndef SymbolFileDWARF_DWARFDIECollection_h_
 #define SymbolFileDWARF_DWARFDIECollection_h_
 
-#include "SymbolFileDWARF.h"
+#include "DWARFDIE.h"
 #include <vector>
 
 class DWARFDIECollection
@@ -25,22 +25,22 @@ public:
     }
 
     void
-    Append (const DWARFDebugInfoEntry *die);
+    Append (const DWARFDIE &die);
 
     void
     Dump(lldb_private::Stream *s, const char* title) const;
 
-    const DWARFDebugInfoEntry*
-    GetDIEPtrAtIndex(uint32_t idx) const;
+    DWARFDIE
+    GetDIEAtIndex (uint32_t idx) const;
 
     bool
-    Insert(const DWARFDebugInfoEntry *die);
+    Insert(const DWARFDIE &die);
 
     size_t
     Size() const;
 
 protected:
-    typedef std::vector<const DWARFDebugInfoEntry *>    collection;
+    typedef std::vector<DWARFDIE>               collection;
     typedef collection::iterator                iterator;
     typedef collection::const_iterator          const_iterator;
 
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDataExtractor.h b/source/Plugins/SymbolFile/DWARF/DWARFDataExtractor.h
index ba2e8ad08accb..0281b5ad5c892 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFDataExtractor.h
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDataExtractor.h
@@ -19,10 +19,10 @@ namespace lldb_private {
 class DWARFDataExtractor : public lldb_private::DataExtractor
 {
 public:
-    DWARFDataExtractor() : DataExtractor(), m_is_dwarf64(false) { };
+    DWARFDataExtractor() : DataExtractor(), m_is_dwarf64(false) { }
 
     DWARFDataExtractor (const DWARFDataExtractor& data, lldb::offset_t offset, lldb::offset_t length) :
-      DataExtractor(data, offset, length), m_is_dwarf64(false) { };
+      DataExtractor(data, offset, length), m_is_dwarf64(false) { }
 
     uint64_t
     GetDWARFInitialLength(lldb::offset_t *offset_ptr) const;
@@ -43,4 +43,3 @@ protected:
 }
 
 #endif  // liblldb_DWARFDataExtractor_h_                                 
-
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDebugInfo.cpp b/source/Plugins/SymbolFile/DWARF/DWARFDebugInfo.cpp
index 393434800c017..a1b00d1892e91 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFDebugInfo.cpp
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDebugInfo.cpp
@@ -103,57 +103,6 @@ DWARFDebugInfo::GetCompileUnitAranges ()
     return *m_cu_aranges_ap.get();
 }
 
-
-//----------------------------------------------------------------------
-// LookupAddress
-//----------------------------------------------------------------------
-bool
-DWARFDebugInfo::LookupAddress
-(
-    const dw_addr_t address,
-    const dw_offset_t hint_die_offset,
-    DWARFCompileUnitSP& cu_sp,
-    DWARFDebugInfoEntry** function_die,
-    DWARFDebugInfoEntry** block_die
-)
-{
-
-    if (hint_die_offset != DW_INVALID_OFFSET)
-        cu_sp = GetCompileUnit(hint_die_offset);
-    else
-    {
-        DWARFDebugAranges &cu_aranges = GetCompileUnitAranges ();
-        const dw_offset_t cu_offset = cu_aranges.FindAddress (address);
-        cu_sp = GetCompileUnit(cu_offset);
-    }
-
-    if (cu_sp.get())
-    {
-        if (cu_sp->LookupAddress(address, function_die, block_die))
-            return true;
-        cu_sp.reset();
-    }
-    else
-    {
-        // The hint_die_offset may have been a pointer to the actual item that
-        // we are looking for
-        DWARFDebugInfoEntry* die_ptr = GetDIEPtr(hint_die_offset, &cu_sp);
-        if (die_ptr)
-        {
-            if (cu_sp.get())
-            {
-                if (function_die || block_die)
-                    return die_ptr->LookupAddress(address, m_dwarf2Data, cu_sp.get(), function_die, block_die);
-
-                // We only wanted the compile unit that contained this address
-                return true;
-            }
-        }
-    }
-    return false;
-}
-
-
 void
 DWARFDebugInfo::ParseCompileUnitHeadersIfNeeded()
 {
@@ -213,19 +162,13 @@ DWARFDebugInfo::ContainsCompileUnit (const DWARFCompileUnit *cu) const
     return false;
 }
 
-static int
-CompareDWARFCompileUnitSPOffset (const void *key, const void *arrmem)
+bool
+DWARFDebugInfo::OffsetLessThanCompileUnitOffset (dw_offset_t offset, const DWARFCompileUnitSP& cu_sp)
 {
-    const dw_offset_t key_cu_offset = *(dw_offset_t*) key;
-    const dw_offset_t cu_offset = ((DWARFCompileUnitSP *)arrmem)->get()->GetOffset();
-    if (key_cu_offset < cu_offset)
-        return -1;
-    if (key_cu_offset > cu_offset)
-        return 1;
-    return 0;
+    return offset < cu_sp->GetOffset();
 }
 
-DWARFCompileUnitSP
+DWARFCompileUnit *
 DWARFDebugInfo::GetCompileUnit(dw_offset_t cu_offset, uint32_t* idx_ptr)
 {
     DWARFCompileUnitSP cu_sp;
@@ -234,41 +177,80 @@ DWARFDebugInfo::GetCompileUnit(dw_offset_t cu_offset, uint32_t* idx_ptr)
     {
         ParseCompileUnitHeadersIfNeeded();
 
-        DWARFCompileUnitSP* match = (DWARFCompileUnitSP*)bsearch(&cu_offset, &m_compile_units[0], m_compile_units.size(), sizeof(DWARFCompileUnitSP), CompareDWARFCompileUnitSPOffset);
-        if (match)
+        // Watch out for single compile unit executable as they are pretty common
+        const size_t num_cus = m_compile_units.size();
+        if (num_cus == 1)
         {
-            cu_sp = *match;
-            cu_idx = match - &m_compile_units[0];
+            if (m_compile_units[0]->GetOffset() == cu_offset)
+            {
+                cu_sp = m_compile_units[0];
+                cu_idx = 0;
+            }
+        }
+        else if (num_cus)
+        {
+            CompileUnitColl::const_iterator end_pos = m_compile_units.end();
+            CompileUnitColl::const_iterator begin_pos = m_compile_units.begin();
+            CompileUnitColl::const_iterator pos = std::upper_bound(begin_pos, end_pos, cu_offset, OffsetLessThanCompileUnitOffset);
+            if (pos != begin_pos)
+            {
+                --pos;
+                if ((*pos)->GetOffset() == cu_offset)
+                {
+                    cu_sp = *pos;
+                    cu_idx = std::distance(begin_pos, pos);
+                }
+            }
         }
     }
     if (idx_ptr)
         *idx_ptr = cu_idx;
-    return cu_sp;
+    return cu_sp.get();
 }
 
-DWARFCompileUnitSP
-DWARFDebugInfo::GetCompileUnitContainingDIE(dw_offset_t die_offset)
+DWARFCompileUnit *
+DWARFDebugInfo::GetCompileUnitContainingDIE (const DIERef& die_ref)
 {
+    dw_offset_t search_offset = die_ref.die_offset;
+    bool is_cu_offset = false;
+    if (m_dwarf2Data->GetID() == 0 && die_ref.cu_offset != DW_INVALID_OFFSET)
+    {
+        is_cu_offset = true;
+        search_offset = die_ref.cu_offset;
+    }
+
     DWARFCompileUnitSP cu_sp;
-    if (die_offset != DW_INVALID_OFFSET)
+    if (search_offset != DW_INVALID_OFFSET)
     {
         ParseCompileUnitHeadersIfNeeded();
 
-        CompileUnitColl::const_iterator end_pos = m_compile_units.end();
-        CompileUnitColl::const_iterator pos;
-
-        for (pos = m_compile_units.begin(); pos != end_pos; ++pos)
+        // Watch out for single compile unit executable as they are pretty common
+        const size_t num_cus = m_compile_units.size();
+        if (num_cus == 1)
         {
-            dw_offset_t cu_start_offset = (*pos)->GetOffset();
-            dw_offset_t cu_end_offset = (*pos)->GetNextCompileUnitOffset();
-            if (cu_start_offset <= die_offset && die_offset < cu_end_offset)
+            if ((is_cu_offset && m_compile_units[0]->GetOffset() == search_offset) ||
+                (!is_cu_offset && m_compile_units[0]->ContainsDIEOffset(search_offset)))
             {
-                cu_sp = *pos;
-                break;
+                cu_sp = m_compile_units[0];
+            }
+        }
+        else if (num_cus)
+        {
+            CompileUnitColl::const_iterator end_pos = m_compile_units.end();
+            CompileUnitColl::const_iterator begin_pos = m_compile_units.begin();
+            CompileUnitColl::const_iterator pos = std::upper_bound(begin_pos, end_pos, search_offset, OffsetLessThanCompileUnitOffset);
+            if (pos != begin_pos)
+            {
+                --pos;
+                if ((is_cu_offset && (*pos)->GetOffset() == search_offset) ||
+                    (!is_cu_offset && (*pos)->ContainsDIEOffset(search_offset)))
+                {
+                    cu_sp = *pos;
+                }
             }
         }
     }
-    return cu_sp;
+    return cu_sp.get();
 }
 
 //----------------------------------------------------------------------
@@ -276,73 +258,15 @@ DWARFDebugInfo::GetCompileUnitContainingDIE(dw_offset_t die_offset)
 //
 // Get the DIE (Debug Information Entry) with the specified offset.
 //----------------------------------------------------------------------
-DWARFDebugInfoEntry*
-DWARFDebugInfo::GetDIEPtr(dw_offset_t die_offset, DWARFCompileUnitSP* cu_sp_ptr)
-{
-    DWARFCompileUnitSP cu_sp(GetCompileUnitContainingDIE(die_offset));
-    if (cu_sp_ptr)
-        *cu_sp_ptr = cu_sp;
-    if (cu_sp.get())
-        return cu_sp->GetDIEPtr(die_offset);
-    return NULL;    // Not found in any compile units
-}
-
-DWARFDebugInfoEntry*
-DWARFDebugInfo::GetDIEPtrWithCompileUnitHint (dw_offset_t die_offset, DWARFCompileUnit**cu_handle)
-{
-    assert (cu_handle);
-    DWARFDebugInfoEntry* die = NULL;
-    if (*cu_handle)
-        die = (*cu_handle)->GetDIEPtr(die_offset);
-
-    if (die == NULL)
-    {
-        DWARFCompileUnitSP cu_sp (GetCompileUnitContainingDIE(die_offset));
-        if (cu_sp.get())
-        {
-            *cu_handle = cu_sp.get();
-            die = cu_sp->GetDIEPtr(die_offset);
-        }
-    }
-    if (die == NULL)
-        *cu_handle = NULL;
-    return die;
-}
-
-
-const DWARFDebugInfoEntry*
-DWARFDebugInfo::GetDIEPtrContainingOffset(dw_offset_t die_offset, DWARFCompileUnitSP* cu_sp_ptr)
-{
-    DWARFCompileUnitSP cu_sp(GetCompileUnitContainingDIE(die_offset));
-    if (cu_sp_ptr)
-        *cu_sp_ptr = cu_sp;
-    if (cu_sp.get())
-        return cu_sp->GetDIEPtrContainingOffset(die_offset);
-
-    return NULL;    // Not found in any compile units
-
-}
-
-//----------------------------------------------------------------------
-// AddCompileUnit
-//----------------------------------------------------------------------
-void
-DWARFDebugInfo::AddCompileUnit(DWARFCompileUnitSP& cu)
+DWARFDIE
+DWARFDebugInfo::GetDIE(const DIERef& die_ref)
 {
-    m_compile_units.push_back(cu);
+    DWARFCompileUnit *cu = GetCompileUnitContainingDIE(die_ref);
+    if (cu)
+        return cu->GetDIE (die_ref.die_offset);
+    return DWARFDIE();    // Not found
 }
 
-/*
-void
-DWARFDebugInfo::AddDIE(DWARFDebugInfoEntry& die)
-{
-    m_die_array.push_back(die);
-}
-*/
-
-
-
-
 //----------------------------------------------------------------------
 // Parse
 //
@@ -372,7 +296,7 @@ DWARFDebugInfo::Parse(SymbolFileDWARF* dwarf2Data, Callback callback, void* user
             depth = 0;
             // Call the callback function with no DIE pointer for the compile unit
             // and get the offset that we are to continue to parse from
-            offset = callback(dwarf2Data, cu, NULL, offset, depth, userData);
+            offset = callback(dwarf2Data, cu.get(), NULL, offset, depth, userData);
 
             // Make sure we are within our compile unit
             if (offset < next_cu_offset)
@@ -383,7 +307,7 @@ DWARFDebugInfo::Parse(SymbolFileDWARF* dwarf2Data, Callback callback, void* user
                 while (!done && die.Extract(dwarf2Data, cu.get(), &offset))
                 {
                     // Call the callback function with DIE pointer that falls within the compile unit
-                    offset = callback(dwarf2Data, cu, &die, offset, depth, userData);
+                    offset = callback(dwarf2Data, cu.get(), &die, offset, depth, userData);
 
                     if (die.IsNULL())
                     {
@@ -450,7 +374,7 @@ typedef struct DumpInfo
 static dw_offset_t DumpCallback
 (
     SymbolFileDWARF* dwarf2Data,
-    DWARFCompileUnitSP& cu_sp,
+    DWARFCompileUnit* cu,
     DWARFDebugInfoEntry* die,
     const dw_offset_t next_offset,
     const uint32_t curr_depth,
@@ -458,9 +382,6 @@ static dw_offset_t DumpCallback
 )
 {
     DumpInfo* dumpInfo = (DumpInfo*)userData;
-
-    const DWARFCompileUnit* cu = cu_sp.get();
-
     Stream *s = dumpInfo->strm;
     bool show_parents = s->GetFlags().Test(DWARFDebugInfo::eDumpFlag_ShowAncestors);
 
@@ -676,12 +597,12 @@ DWARFDebugInfo::Dump (Stream *s, const uint32_t die_offset, const uint32_t recur
     ParseCompileUnitHeadersIfNeeded();
     for (pos = m_compile_units.begin(); pos != m_compile_units.end(); ++pos)
     {
-        const DWARFCompileUnitSP& cu_sp = *pos;
-        DumpCallback(m_dwarf2Data, (DWARFCompileUnitSP&)cu_sp, NULL, 0, curr_depth, &dumpInfo);
+        DWARFCompileUnit *cu = pos->get();
+        DumpCallback(m_dwarf2Data, cu, NULL, 0, curr_depth, &dumpInfo);
         
-        const DWARFDebugInfoEntry* die = cu_sp->DIE();
+        const DWARFDIE die = cu->DIE();
         if (die)
-            die->Dump(m_dwarf2Data, cu_sp.get(), *s, recurse_depth);
+            die.Dump(s, recurse_depth);
     }
 }
 
@@ -707,7 +628,7 @@ typedef struct FindCallbackStringInfoTag
 static dw_offset_t FindCallbackString
 (
     SymbolFileDWARF* dwarf2Data,
-    DWARFCompileUnitSP& cu_sp,
+    DWARFCompileUnit* cu,
     DWARFDebugInfoEntry* die,
     const dw_offset_t next_offset,
     const uint32_t curr_depth,
@@ -715,7 +636,6 @@ static dw_offset_t FindCallbackString
 )
 {
     FindCallbackStringInfo* info = (FindCallbackStringInfo*)userData;
-    const DWARFCompileUnit* cu = cu_sp.get();
 
     if (die)
     {
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDebugInfo.h b/source/Plugins/SymbolFile/DWARF/DWARFDebugInfo.h
index 50a7ae76921f8..ea2e204db7029 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFDebugInfo.h
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDebugInfo.h
@@ -16,19 +16,18 @@
 #include "lldb/lldb-private.h"
 #include "lldb/lldb-private.h"
 #include "SymbolFileDWARF.h"
+#include "DWARFDIE.h"
 
 typedef std::multimap<const char*, dw_offset_t, CStringCompareFunctionObject> CStringToDIEMap;
 typedef CStringToDIEMap::iterator CStringToDIEMapIter;
 typedef CStringToDIEMap::const_iterator CStringToDIEMapConstIter;
 
-typedef std::shared_ptr<DWARFCompileUnit> DWARFCompileUnitSP;
-
 class DWARFDebugInfo
 {
 public:
     typedef dw_offset_t (*Callback)(
         SymbolFileDWARF* dwarf2Data,
-        DWARFCompileUnitSP& cu_shared_ptr,
+        DWARFCompileUnit* cu,
         DWARFDebugInfoEntry* die,
         const dw_offset_t next_offset,
         const uint32_t depth,
@@ -37,24 +36,13 @@ public:
     DWARFDebugInfo();
     void SetDwarfData(SymbolFileDWARF* dwarf2Data);
 
-    bool LookupAddress(
-            const dw_addr_t address,
-            const dw_offset_t cu_offset,    // Can be valid (find in .debug_aranges), or DW_INVALID_OFFSET if we need to search manually
-            DWARFCompileUnitSP& cu_shared_ptr,
-            DWARFDebugInfoEntry** function_die,
-            DWARFDebugInfoEntry** block_die);
-
-    void AddCompileUnit(DWARFCompileUnitSP& cu);
     size_t GetNumCompileUnits();
     bool ContainsCompileUnit (const DWARFCompileUnit *cu) const;
-    DWARFCompileUnit* GetCompileUnitAtIndex(uint32_t idx);
-    DWARFCompileUnitSP GetCompileUnit(dw_offset_t cu_offset, uint32_t* idx_ptr = NULL);
-    DWARFCompileUnitSP GetCompileUnitContainingDIE(dw_offset_t die_offset);
+    DWARFCompileUnit* GetCompileUnitAtIndex (uint32_t idx);
+    DWARFCompileUnit* GetCompileUnit (dw_offset_t cu_offset, uint32_t* idx_ptr = NULL);
+    DWARFCompileUnit* GetCompileUnitContainingDIE (const DIERef& die_ref);
 
-    DWARFDebugInfoEntry* GetDIEPtr(dw_offset_t die_offset, DWARFCompileUnitSP* cu_sp_ptr);
-    DWARFDebugInfoEntry* GetDIEPtrWithCompileUnitHint (dw_offset_t die_offset, DWARFCompileUnit**cu_handle);
-
-    const DWARFDebugInfoEntry* GetDIEPtrContainingOffset(dw_offset_t die_offset, DWARFCompileUnitSP* cu_sp_ptr);
+    DWARFDIE GetDIE (const DIERef& die_ref);
 
     void Dump(lldb_private::Stream *s, const uint32_t die_offset, const uint32_t recurse_depth);
     static void Parse(SymbolFileDWARF* parser, Callback callback, void* userData);
@@ -74,8 +62,17 @@ public:
     GetCompileUnitAranges ();
 
 protected:
-    SymbolFileDWARF* m_dwarf2Data;
+    typedef std::shared_ptr<DWARFCompileUnit> DWARFCompileUnitSP;
+
+    static bool
+    OffsetLessThanCompileUnitOffset (dw_offset_t offset, const DWARFCompileUnitSP& cu_sp);
+
     typedef std::vector<DWARFCompileUnitSP>     CompileUnitColl;
+
+    //----------------------------------------------------------------------
+    // Member variables
+    //----------------------------------------------------------------------
+    SymbolFileDWARF* m_dwarf2Data;
     CompileUnitColl m_compile_units;
     std::unique_ptr<DWARFDebugAranges> m_cu_aranges_ap; // A quick address to compile unit table
 
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.cpp b/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.cpp
index 0ad1f1a3a95ab..b9d825489aef9 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.cpp
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.cpp
@@ -19,107 +19,26 @@
 #include "lldb/Symbol/ObjectFile.h"
 
 #include "DWARFCompileUnit.h"
-#include "SymbolFileDWARF.h"
 #include "DWARFDebugAbbrev.h"
 #include "DWARFDebugAranges.h"
 #include "DWARFDebugInfo.h"
 #include "DWARFDeclContext.h"
 #include "DWARFDIECollection.h"
 #include "DWARFFormValue.h"
-#include "DWARFLocationDescription.h"
-#include "DWARFLocationList.h"
 #include "DWARFDebugRanges.h"
+#include "SymbolFileDWARF.h"
+#include "SymbolFileDWARFDwo.h"
 
 using namespace lldb_private;
 using namespace std;
 extern int g_verbose;
 
-
-
-DWARFDebugInfoEntry::Attributes::Attributes() :
-    m_infos()
-{
-}
-
-DWARFDebugInfoEntry::Attributes::~Attributes()
-{
-}
-
-
-uint32_t
-DWARFDebugInfoEntry::Attributes::FindAttributeIndex(dw_attr_t attr) const
-{
-    collection::const_iterator end = m_infos.end();
-    collection::const_iterator beg = m_infos.begin();
-    collection::const_iterator pos;
-    for (pos = beg; pos != end; ++pos)
-    {
-        if (pos->attr == attr)
-            return std::distance(beg, pos);
-    }
-    return UINT32_MAX;
-}
-
-void
-DWARFDebugInfoEntry::Attributes::Append(const DWARFCompileUnit *cu, dw_offset_t attr_die_offset, dw_attr_t attr, dw_form_t form)
-{
-    Info info = { cu, attr_die_offset, attr, form };
-    m_infos.push_back(info);
-}
-
-bool
-DWARFDebugInfoEntry::Attributes::ContainsAttribute(dw_attr_t attr) const
-{
-    return FindAttributeIndex(attr) != UINT32_MAX;
-}
-
-bool
-DWARFDebugInfoEntry::Attributes::RemoveAttribute(dw_attr_t attr)
-{
-    uint32_t attr_index = FindAttributeIndex(attr);
-    if (attr_index != UINT32_MAX)
-    {
-        m_infos.erase(m_infos.begin() + attr_index);
-        return true;
-    }
-    return false;
-}
-
-bool
-DWARFDebugInfoEntry::Attributes::ExtractFormValueAtIndex (SymbolFileDWARF* dwarf2Data, uint32_t i, DWARFFormValue &form_value) const
-{
-    form_value.SetCompileUnit(CompileUnitAtIndex(i));
-    form_value.SetForm(FormAtIndex(i));
-    lldb::offset_t offset = DIEOffsetAtIndex(i);
-    return form_value.ExtractValue(dwarf2Data->get_debug_info_data(), &offset);
-}
-
-uint64_t
-DWARFDebugInfoEntry::Attributes::FormValueAsUnsigned (SymbolFileDWARF* dwarf2Data, dw_attr_t attr, uint64_t fail_value) const
-{
-    const uint32_t attr_idx = FindAttributeIndex (attr);
-    if (attr_idx != UINT32_MAX)
-        return FormValueAsUnsignedAtIndex (dwarf2Data, attr_idx, fail_value);
-    return fail_value;
-}
-
-uint64_t
-DWARFDebugInfoEntry::Attributes::FormValueAsUnsignedAtIndex(SymbolFileDWARF* dwarf2Data, uint32_t i, uint64_t fail_value) const
-{
-    DWARFFormValue form_value;
-    if (ExtractFormValueAtIndex(dwarf2Data, i, form_value))
-        return form_value.Reference();
-    return fail_value;
-}
-
-
-
 bool
 DWARFDebugInfoEntry::FastExtract
 (
     const DWARFDataExtractor& debug_info_data,
     const DWARFCompileUnit* cu,
-    const uint8_t *fixed_form_sizes,
+    const DWARFFormValue::FixedFormSizes& fixed_form_sizes,
     lldb::offset_t *offset_ptr
 )
 {
@@ -158,7 +77,7 @@ DWARFDebugInfoEntry::FastExtract
         {
             form = abbrevDecl->GetFormByIndexUnchecked(i);
 
-            const uint8_t fixed_skip_size = fixed_form_sizes [form];
+            const uint8_t fixed_skip_size = fixed_form_sizes.GetSize(form);
             if (fixed_skip_size)
                 offset += fixed_skip_size;
             else
@@ -226,9 +145,11 @@ DWARFDebugInfoEntry::FastExtract
                         break;
 
                     // signed or unsigned LEB 128 values
-                    case DW_FORM_sdata       :
-                    case DW_FORM_udata       :
-                    case DW_FORM_ref_udata   :
+                    case DW_FORM_sdata         :
+                    case DW_FORM_udata         :
+                    case DW_FORM_ref_udata     :
+                    case DW_FORM_GNU_addr_index:
+                    case DW_FORM_GNU_str_index :
                         debug_info_data.Skip_LEB128 (&offset);
                         break;
 
@@ -306,7 +227,7 @@ DWARFDebugInfoEntry::Extract
 
                 bool isCompileUnitTag = m_tag == DW_TAG_compile_unit;
                 if (cu && isCompileUnitTag)
-                    ((DWARFCompileUnit*)cu)->SetBaseAddress(0);
+                    const_cast<DWARFCompileUnit *>(cu)->SetBaseAddress(0);
 
                 // Skip all data in the .debug_info for the attributes
                 const uint32_t numAttributes = abbrevDecl->NumAttributes();
@@ -323,7 +244,7 @@ DWARFDebugInfoEntry::Extract
                         if (form_value.ExtractValue(debug_info_data, &offset))
                         {
                             if (attr == DW_AT_low_pc || attr == DW_AT_entry_pc)
-                                ((DWARFCompileUnit*)cu)->SetBaseAddress(form_value.Unsigned());
+                                const_cast<DWARFCompileUnit*>(cu)->SetBaseAddress(form_value.Address());
                         }
                     }
                     else
@@ -389,9 +310,11 @@ DWARFDebugInfoEntry::Extract
                                 break;
 
                             // signed or unsigned LEB 128 values
-                            case DW_FORM_sdata       :
-                            case DW_FORM_udata       :
-                            case DW_FORM_ref_udata   :
+                            case DW_FORM_sdata         :
+                            case DW_FORM_udata         :
+                            case DW_FORM_ref_udata     :
+                            case DW_FORM_GNU_addr_index:
+                            case DW_FORM_GNU_str_index :
                                 debug_info_data.Skip_LEB128(&offset);
                                 break;
 
@@ -456,276 +379,6 @@ DWARFDebugInfoEntry::DumpAncestry
 }
 
 //----------------------------------------------------------------------
-// Compare two DIE by comparing all their attributes values, and
-// following all DW_FORM_ref attributes and comparing their contents as
-// well (except for DW_AT_sibling attributes.
-//
-//  DWARFDebugInfoEntry::CompareState compare_state;
-//  int result = DWARFDebugInfoEntry::Compare(this, 0x00017ccb, 0x0001eb2b, compare_state, false, true);
-//----------------------------------------------------------------------
-//int
-//DWARFDebugInfoEntry::Compare
-//(
-//    SymbolFileDWARF* dwarf2Data,
-//    dw_offset_t a_die_offset,
-//    dw_offset_t b_die_offset,
-//    CompareState &compare_state,
-//    bool compare_siblings,
-//    bool compare_children
-//)
-//{
-//    if (a_die_offset == b_die_offset)
-//        return 0;
-//
-//    DWARFCompileUnitSP a_cu_sp;
-//    DWARFCompileUnitSP b_cu_sp;
-//    const DWARFDebugInfoEntry* a_die = dwarf2Data->DebugInfo()->GetDIEPtr(a_die_offset, &a_cu_sp);
-//    const DWARFDebugInfoEntry* b_die = dwarf2Data->DebugInfo()->GetDIEPtr(b_die_offset, &b_cu_sp);
-//
-//    return Compare(dwarf2Data, a_cu_sp.get(), a_die, b_cu_sp.get(), b_die, compare_state, compare_siblings, compare_children);
-//}
-//
-//int
-//DWARFDebugInfoEntry::Compare
-//(
-//    SymbolFileDWARF* dwarf2Data,
-//    DWARFCompileUnit* a_cu, const DWARFDebugInfoEntry* a_die,
-//    DWARFCompileUnit* b_cu, const DWARFDebugInfoEntry* b_die,
-//    CompareState &compare_state,
-//    bool compare_siblings,
-//    bool compare_children
-//)
-//{
-//    if (a_die == b_die)
-//        return 0;
-//
-//    if (!compare_state.AddTypePair(a_die->GetOffset(), b_die->GetOffset()))
-//    {
-//        // We are already comparing both of these types, so let
-//        // compares complete for the real result
-//        return 0;
-//    }
-//
-//    //printf("DWARFDebugInfoEntry::Compare(0x%8.8x, 0x%8.8x)\n", a_die->GetOffset(), b_die->GetOffset());
-//
-//    // Do we have two valid DIEs?
-//    if (a_die && b_die)
-//    {
-//        // Both DIE are valid
-//        int result = 0;
-//
-//        const dw_tag_t a_tag = a_die->Tag();
-//        const dw_tag_t b_tag = b_die->Tag();
-//        if (a_tag == 0 && b_tag == 0)
-//            return 0;
-//
-//        //printf("    comparing tags: %s and %s\n", DW_TAG_value_to_name(a_tag), DW_TAG_value_to_name(b_tag));
-//
-//        if (a_tag < b_tag)
-//            return -1;
-//        else if (a_tag > b_tag)
-//            return 1;
-//
-//        DWARFDebugInfoEntry::Attributes a_attrs;
-//        DWARFDebugInfoEntry::Attributes b_attrs;
-//        size_t a_attr_count = a_die->GetAttributes(dwarf2Data, a_cu, a_attrs);
-//        size_t b_attr_count = b_die->GetAttributes(dwarf2Data, b_cu, b_attrs);
-//        if (a_attr_count != b_attr_count)
-//        {
-//            a_attrs.RemoveAttribute(DW_AT_sibling);
-//            b_attrs.RemoveAttribute(DW_AT_sibling);
-//        }
-//
-//        a_attr_count = a_attrs.Size();
-//        b_attr_count = b_attrs.Size();
-//
-//        DWARFFormValue a_form_value;
-//        DWARFFormValue b_form_value;
-//
-//        if (a_attr_count != b_attr_count)
-//        {
-//            uint32_t is_decl_index = a_attrs.FindAttributeIndex(DW_AT_declaration);
-//            uint32_t a_name_index = UINT32_MAX;
-//            uint32_t b_name_index = UINT32_MAX;
-//            if (is_decl_index != UINT32_MAX)
-//            {
-//                if (a_attr_count == 2)
-//                {
-//                    a_name_index = a_attrs.FindAttributeIndex(DW_AT_name);
-//                    b_name_index = b_attrs.FindAttributeIndex(DW_AT_name);
-//                }
-//            }
-//            else
-//            {
-//                is_decl_index = b_attrs.FindAttributeIndex(DW_AT_declaration);
-//                if (is_decl_index != UINT32_MAX && a_attr_count == 2)
-//                {
-//                    a_name_index = a_attrs.FindAttributeIndex(DW_AT_name);
-//                    b_name_index = b_attrs.FindAttributeIndex(DW_AT_name);
-//                }
-//            }
-//            if (a_name_index != UINT32_MAX && b_name_index != UINT32_MAX)
-//            {
-//                if (a_attrs.ExtractFormValueAtIndex(dwarf2Data, a_name_index, a_form_value) &&
-//                    b_attrs.ExtractFormValueAtIndex(dwarf2Data, b_name_index, b_form_value))
-//                {
-//                    result = DWARFFormValue::Compare (a_form_value, b_form_value, a_cu, b_cu, &dwarf2Data->get_debug_str_data());
-//                    if (result == 0)
-//                    {
-//                        a_attr_count = b_attr_count = 0;
-//                        compare_children = false;
-//                    }
-//                }
-//            }
-//        }
-//
-//        if (a_attr_count < b_attr_count)
-//            return -1;
-//        if (a_attr_count > b_attr_count)
-//            return 1;
-//
-//
-//        // The number of attributes are the same...
-//        if (a_attr_count > 0)
-//        {
-//            const DWARFDataExtractor* debug_str_data_ptr = &dwarf2Data->get_debug_str_data();
-//
-//            uint32_t i;
-//            for (i=0; i<a_attr_count; ++i)
-//            {
-//                const dw_attr_t a_attr = a_attrs.AttributeAtIndex(i);
-//                const dw_attr_t b_attr = b_attrs.AttributeAtIndex(i);
-//                //printf("    comparing attributes\n\t\t0x%8.8x: %s %s\t\t0x%8.8x: %s %s\n",
-//                //                a_attrs.DIEOffsetAtIndex(i), DW_FORM_value_to_name(a_attrs.FormAtIndex(i)), DW_AT_value_to_name(a_attr),
-//                //                b_attrs.DIEOffsetAtIndex(i), DW_FORM_value_to_name(b_attrs.FormAtIndex(i)), DW_AT_value_to_name(b_attr));
-//
-//                if (a_attr < b_attr)
-//                    return -1;
-//                else if (a_attr > b_attr)
-//                    return 1;
-//
-//                switch (a_attr)
-//                {
-//                // Since we call a form of GetAttributes which inlines the
-//                // attributes from DW_AT_abstract_origin and DW_AT_specification
-//                // we don't care if their values mismatch...
-//                case DW_AT_abstract_origin:
-//                case DW_AT_specification:
-//                case DW_AT_sibling:
-//                case DW_AT_containing_type:
-//                    //printf("        action = IGNORE\n");
-//                    result = 0;
-//                    break;  // ignore
-//
-//                default:
-//                    if (a_attrs.ExtractFormValueAtIndex(dwarf2Data, i, a_form_value) &&
-//                        b_attrs.ExtractFormValueAtIndex(dwarf2Data, i, b_form_value))
-//                        result = DWARFFormValue::Compare (a_form_value, b_form_value, a_cu, b_cu, debug_str_data_ptr);
-//                    break;
-//                }
-//
-//                //printf("\t  result = %i\n", result);
-//
-//                if (result != 0)
-//                {
-//                    // Attributes weren't equal, lets see if we care?
-//                    switch (a_attr)
-//                    {
-//                    case DW_AT_decl_file:
-//                        // TODO: add the ability to compare files in two different compile units
-//                        if (a_cu == b_cu)
-//                        {
-//                            //printf("        action = RETURN RESULT\n");
-//                            return result;  // Only return the compare results when the compile units are the same and the decl_file attributes can be compared
-//                        }
-//                        else
-//                        {
-//                            result = 0;
-//                            //printf("        action = IGNORE\n");
-//                        }
-//                        break;
-//
-//                    default:
-//                        switch (a_attrs.FormAtIndex(i))
-//                        {
-//                        case DW_FORM_ref1:
-//                        case DW_FORM_ref2:
-//                        case DW_FORM_ref4:
-//                        case DW_FORM_ref8:
-//                        case DW_FORM_ref_udata:
-//                        case DW_FORM_ref_addr:
-//                            //printf("    action = COMPARE DIEs 0x%8.8x 0x%8.8x\n", (dw_offset_t)a_form_value.Reference(a_cu), (dw_offset_t)b_form_value.Reference(b_cu));
-//                            // These attribute values refer to other DIEs, so lets compare those instead of their DIE offsets...
-//                            result = Compare(dwarf2Data, a_form_value.Reference(a_cu), b_form_value.Reference(b_cu), compare_state, false, true);
-//                            if (result != 0)
-//                                return result;
-//                            break;
-//
-//                        default:
-//                            // We do care that they were different, return this result...
-//                            //printf("        action = RETURN RESULT\n");
-//                            return result;
-//                        }
-//                    }
-//                }
-//            }
-//        }
-//        //printf("    SUCCESS\n\t\t0x%8.8x: %s\n\t\t0x%8.8x: %s\n", a_die->GetOffset(), DW_TAG_value_to_name(a_tag), b_die->GetOffset(), DW_TAG_value_to_name(b_tag));
-//
-//        if (compare_children)
-//        {
-//            bool a_has_children = a_die->HasChildren();
-//            bool b_has_children = b_die->HasChildren();
-//            if (a_has_children == b_has_children)
-//            {
-//                // Both either have kids or don't
-//                if (a_has_children)
-//                    result = Compare(   dwarf2Data,
-//                                        a_cu, a_die->GetFirstChild(),
-//                                        b_cu, b_die->GetFirstChild(),
-//                                        compare_state, true, compare_children);
-//                else
-//                    result = 0;
-//            }
-//            else if (!a_has_children)
-//                result = -1;    // A doesn't have kids, but B does
-//            else
-//                result = 1; // A has kids, but B doesn't
-//        }
-//
-//        if (compare_siblings)
-//        {
-//            result = Compare(   dwarf2Data,
-//                                a_cu, a_die->GetSibling(),
-//                                b_cu, b_die->GetSibling(),
-//                                compare_state, true, compare_children);
-//        }
-//
-//        return result;
-//    }
-//
-//    if (a_die == NULL)
-//        return -1;  // a_die is NULL, yet b_die is non-NULL
-//    else
-//        return 1;   // a_die is non-NULL, yet b_die is NULL
-//
-//}
-//
-//
-//int
-//DWARFDebugInfoEntry::Compare
-//(
-//  SymbolFileDWARF* dwarf2Data,
-//  const DWARFCompileUnit* cu_a,
-//  const DWARFDebugInfoEntry* die_a,
-//  const DWARFCompileUnit* cu_a,
-//  const DWARFDebugInfoEntry* die_b,
-//  CompareState &compare_state
-//)
-//{
-//}
-
-//----------------------------------------------------------------------
 // GetDIENamesAndRanges
 //
 // Gets the valid address ranges for a given DIE by looking for a
@@ -739,7 +392,7 @@ DWARFDebugInfoEntry::GetDIENamesAndRanges
     const DWARFCompileUnit* cu,
     const char * &name,
     const char * &mangled,
-    DWARFDebugRanges::RangeList& ranges,
+    DWARFRangeList& ranges,
     int& decl_file,
     int& decl_line,
     int& decl_column,
@@ -749,12 +402,27 @@ DWARFDebugInfoEntry::GetDIENamesAndRanges
     DWARFExpression *frame_base
 ) const
 {
-    if (dwarf2Data == NULL)
+    if (dwarf2Data == nullptr)
         return false;
 
+    SymbolFileDWARFDwo* dwo_symbol_file = cu->GetDwoSymbolFile();
+    if (dwo_symbol_file)
+        return GetDIENamesAndRanges(dwo_symbol_file,
+                                    dwo_symbol_file->GetCompileUnit(),
+                                    name,
+                                    mangled,
+                                    ranges,
+                                    decl_file,
+                                    decl_line,
+                                    decl_column,
+                                    call_file,
+                                    call_line,
+                                    call_column,
+                                    frame_base);
+
     dw_addr_t lo_pc = LLDB_INVALID_ADDRESS;
     dw_addr_t hi_pc = LLDB_INVALID_ADDRESS;
-    std::vector<dw_offset_t> die_offsets;
+    std::vector<DIERef> die_refs;
     bool set_frame_base_loclist_addr = false;
     
     lldb::offset_t offset;
@@ -784,7 +452,7 @@ DWARFDebugInfoEntry::GetDIENamesAndRanges
                 switch (attr)
                 {
                 case DW_AT_low_pc:
-                    lo_pc = form_value.Unsigned();
+                    lo_pc = form_value.Address();
 
                     if (do_offset)
                         hi_pc += lo_pc;
@@ -792,13 +460,18 @@ DWARFDebugInfoEntry::GetDIENamesAndRanges
                     break;
 
                 case DW_AT_entry_pc:
-                    lo_pc = form_value.Unsigned();
+                    lo_pc = form_value.Address();
                     break;
 
                 case DW_AT_high_pc:
-                    hi_pc = form_value.Unsigned();
-                    if (form_value.Form() != DW_FORM_addr)
+                    if (form_value.Form() == DW_FORM_addr ||
+                        form_value.Form() == DW_FORM_GNU_addr_index)
                     {
+                        hi_pc = form_value.Address();
+                    }
+                    else
+                    {
+                        hi_pc = form_value.Unsigned();
                         if (lo_pc == LLDB_INVALID_ADDRESS)
                             do_offset = hi_pc != LLDB_INVALID_ADDRESS;
                         else
@@ -819,21 +492,21 @@ DWARFDebugInfoEntry::GetDIENamesAndRanges
 
                 case DW_AT_name:
                     if (name == NULL)
-                        name = form_value.AsCString(&dwarf2Data->get_debug_str_data());
+                        name = form_value.AsCString();
                     break;
 
                 case DW_AT_MIPS_linkage_name:
                 case DW_AT_linkage_name:
                     if (mangled == NULL)
-                        mangled = form_value.AsCString(&dwarf2Data->get_debug_str_data());
+                        mangled = form_value.AsCString();
                     break;
 
                 case DW_AT_abstract_origin:
-                    die_offsets.push_back(form_value.Reference());
+                    die_refs.emplace_back(form_value);
                     break;
 
                 case DW_AT_specification:
-                    die_offsets.push_back(form_value.Reference());
+                    die_refs.emplace_back(form_value);
                     break;
 
                 case DW_AT_decl_file:
@@ -880,7 +553,7 @@ DWARFDebugInfoEntry::GetDIENamesAndRanges
                             const DWARFDataExtractor &debug_loc_data = dwarf2Data->get_debug_loc_data();
                             const dw_offset_t debug_loc_offset = form_value.Unsigned();
 
-                            size_t loc_list_length = DWARFLocationList::Size(debug_loc_data, debug_loc_offset);
+                            size_t loc_list_length = DWARFExpression::LocationListSize(cu, debug_loc_data, debug_loc_offset);
                             if (loc_list_length > 0)
                             {
                                 frame_base->SetOpcodeData(module, debug_loc_data, debug_loc_offset, loc_list_length);
@@ -910,9 +583,9 @@ DWARFDebugInfoEntry::GetDIENamesAndRanges
         if (lo_pc != LLDB_INVALID_ADDRESS)
         {
             if (hi_pc != LLDB_INVALID_ADDRESS && hi_pc > lo_pc)
-                ranges.Append(DWARFDebugRanges::Range (lo_pc, hi_pc - lo_pc));
+                ranges.Append(DWARFRangeList::Entry (lo_pc, hi_pc - lo_pc));
             else
-                ranges.Append(DWARFDebugRanges::Range (lo_pc, 0));
+                ranges.Append(DWARFRangeList::Entry (lo_pc, 0));
         }
     }
     
@@ -925,18 +598,13 @@ DWARFDebugInfoEntry::GetDIENamesAndRanges
 
     if (ranges.IsEmpty() || name == NULL || mangled == NULL)
     {
-        std::vector<dw_offset_t>::const_iterator pos;
-        std::vector<dw_offset_t>::const_iterator end = die_offsets.end();
-        for (pos = die_offsets.begin(); pos != end; ++pos)
+        for (const DIERef& die_ref : die_refs)
         {
-            DWARFCompileUnitSP cu_sp_ptr;
-            const DWARFDebugInfoEntry* die = NULL;
-            dw_offset_t die_offset = *pos;
-            if (die_offset != DW_INVALID_OFFSET)
+            if (die_ref.die_offset != DW_INVALID_OFFSET)
             {
-                die = dwarf2Data->DebugInfo()->GetDIEPtr(die_offset, &cu_sp_ptr);
+                DWARFDIE die = dwarf2Data->DebugInfo()->GetDIE(die_ref);
                 if (die)
-                    die->GetDIENamesAndRanges(dwarf2Data, cu_sp_ptr.get(), name, mangled, ranges, decl_file, decl_line, decl_column, call_file, call_line, call_column);
+                    die.GetDIE()->GetDIENamesAndRanges(die.GetDWARF(), die.GetCU(), name, mangled, ranges, decl_file, decl_line, decl_column, call_file, call_line, call_column);
             }
         }
     }
@@ -1023,10 +691,10 @@ DWARFDebugInfoEntry::DumpLocation
     Stream &s
 ) const
 {
-    const DWARFDebugInfoEntry *cu_die = cu->GetCompileUnitDIEOnly();
+    const DWARFDIE cu_die = cu->GetCompileUnitDIEOnly();
     const char *cu_name = NULL;
-    if (cu_die != NULL)
-        cu_name = cu_die->GetName (dwarf2Data, cu);
+    if (cu_die)
+        cu_name = cu_die.GetName ();
     const char *obj_file_name = NULL;
     ObjectFile *obj_file = dwarf2Data->GetObjectFile();
     if (obj_file)
@@ -1062,7 +730,6 @@ DWARFDebugInfoEntry::DumpAttribute
     bool verbose    = s.GetVerbose();
     bool show_form  = s.GetFlags().Test(DWARFDebugInfo::eDumpFlag_ShowForm);
     
-    const DWARFDataExtractor* debug_str_data = dwarf2Data ? &dwarf2Data->get_debug_str_data() : NULL;
     if (verbose)
         s.Offset (*offset_ptr);
     else
@@ -1094,7 +761,7 @@ DWARFDebugInfoEntry::DumpAttribute
     // Always dump form value if verbose is enabled
     if (verbose)
     {
-        form_value.Dump(s, debug_str_data);
+        form_value.Dump(s);
     }
 
 
@@ -1127,12 +794,16 @@ DWARFDebugInfoEntry::DumpAttribute
             if (blockData)
             {
                 if (!verbose)
-                    form_value.Dump(s, debug_str_data);
+                    form_value.Dump(s);
 
                 // Location description is inlined in data in the form value
                 DWARFDataExtractor locationData(debug_info_data, (*offset_ptr) - form_value.Unsigned(), form_value.Unsigned());
                 if ( verbose ) s.PutCString(" ( ");
-                print_dwarf_expression (s, locationData, DWARFCompileUnit::GetAddressByteSize(cu), 4, false);
+                DWARFExpression::PrintDWARFExpression(s,
+                                                      locationData,
+                                                      DWARFCompileUnit::GetAddressByteSize(cu),
+                                                      4,
+                                                      false);
                 if ( verbose ) s.PutCString(" )");
             }
             else
@@ -1144,13 +815,16 @@ DWARFDebugInfoEntry::DumpAttribute
                 if (dwarf2Data)
                 {
                     if ( !verbose )
-                        form_value.Dump(s, debug_str_data);
-                    DWARFLocationList::Dump(s, cu, dwarf2Data->get_debug_loc_data(), debug_loc_offset);
+                        form_value.Dump(s);
+                    DWARFExpression::PrintDWARFLocationList(s,
+                                                            cu,
+                                                            dwarf2Data->get_debug_loc_data(),
+                                                            debug_loc_offset);
                 }
                 else
                 {
                     if ( !verbose )
-                        form_value.Dump(s, NULL);
+                        form_value.Dump(s);
                 }
             }
         }
@@ -1160,7 +834,7 @@ DWARFDebugInfoEntry::DumpAttribute
     case DW_AT_specification:
         {
             uint64_t abstract_die_offset = form_value.Reference();
-            form_value.Dump(s, debug_str_data);
+            form_value.Dump(s);
         //  *ostrm_ptr << HEX32 << abstract_die_offset << " ( ";
             if ( verbose ) s.PutCString(" ( ");
             GetName(dwarf2Data, cu, abstract_die_offset, s);
@@ -1172,7 +846,7 @@ DWARFDebugInfoEntry::DumpAttribute
         {
             uint64_t type_die_offset = form_value.Reference();
             if (!verbose)
-                form_value.Dump(s, debug_str_data);
+                form_value.Dump(s);
             s.PutCString(" ( ");
             AppendTypeName(dwarf2Data, cu, type_die_offset, s);
             s.PutCString(" )");
@@ -1182,7 +856,7 @@ DWARFDebugInfoEntry::DumpAttribute
     case DW_AT_ranges:
         {
             if ( !verbose )
-                form_value.Dump(s, debug_str_data);
+                form_value.Dump(s);
             lldb::offset_t ranges_offset = form_value.Unsigned();
             dw_addr_t base_addr = cu ? cu->GetBaseAddress() : 0;
             if (dwarf2Data)
@@ -1192,7 +866,7 @@ DWARFDebugInfoEntry::DumpAttribute
 
     default:
         if ( !verbose )
-            form_value.Dump(s, debug_str_data);
+            form_value.Dump(s);
         break;
     }
 
@@ -1206,24 +880,37 @@ DWARFDebugInfoEntry::DumpAttribute
 // take precedence (this can happen for declaration attributes).
 //----------------------------------------------------------------------
 size_t
-DWARFDebugInfoEntry::GetAttributes
-(
-    SymbolFileDWARF* dwarf2Data,
-    const DWARFCompileUnit* cu,
-    const uint8_t *fixed_form_sizes,
-    DWARFDebugInfoEntry::Attributes& attributes,
-    uint32_t curr_depth
-) const
+DWARFDebugInfoEntry::GetAttributes (const DWARFCompileUnit* cu,
+                                    DWARFFormValue::FixedFormSizes fixed_form_sizes,
+                                    DWARFAttributes& attributes,
+                                    uint32_t curr_depth) const
 {
-    lldb::offset_t offset;
-    const DWARFAbbreviationDeclaration* abbrevDecl = GetAbbreviationDeclarationPtr(dwarf2Data, cu, offset);
+    SymbolFileDWARF* dwarf2Data = nullptr;
+    const DWARFAbbreviationDeclaration* abbrevDecl = nullptr;
+    lldb::offset_t offset = 0;
+    if (cu)
+    {
+        if (m_tag != DW_TAG_compile_unit)
+        {
+            SymbolFileDWARFDwo* dwo_symbol_file = cu->GetDwoSymbolFile();
+            if (dwo_symbol_file)
+                return GetAttributes(dwo_symbol_file->GetCompileUnit(),
+                                     fixed_form_sizes,
+                                     attributes,
+                                     curr_depth);
+        }
+
+        dwarf2Data = cu->GetSymbolFileDWARF();
+        abbrevDecl = GetAbbreviationDeclarationPtr(dwarf2Data, cu, offset);
+    }
 
     if (abbrevDecl)
     {
         const DWARFDataExtractor& debug_info_data = dwarf2Data->get_debug_info_data();
 
-        if (fixed_form_sizes == NULL)
-            fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize(cu->GetAddressByteSize(), cu->IsDWARF64());
+        if (fixed_form_sizes.Empty())
+            fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize(
+                    cu->GetAddressByteSize(), cu->IsDWARF64());
 
         const uint32_t num_attributes = abbrevDecl->NumAttributes();
         uint32_t i;
@@ -1258,26 +945,15 @@ DWARFDebugInfoEntry::GetAttributes
                 DWARFFormValue form_value (cu, form);
                 if (form_value.ExtractValue(debug_info_data, &offset))
                 {
-                    const DWARFDebugInfoEntry* die = NULL;
                     dw_offset_t die_offset = form_value.Reference();
-                    if (cu->ContainsDIEOffset(die_offset))
-                    {
-                        die = const_cast<DWARFCompileUnit*>(cu)->GetDIEPtr(die_offset);
-                        if (die)
-                            die->GetAttributes(dwarf2Data, cu, fixed_form_sizes, attributes, curr_depth + 1);
-                    }
-                    else
-                    {
-                        DWARFCompileUnitSP cu_sp_ptr;
-                        die = const_cast<SymbolFileDWARF*>(dwarf2Data)->DebugInfo()->GetDIEPtr(die_offset, &cu_sp_ptr);
-                        if (die)
-                            die->GetAttributes(dwarf2Data, cu_sp_ptr.get(), fixed_form_sizes, attributes, curr_depth + 1);
-                    }
+                    DWARFDIE spec_die = const_cast<DWARFCompileUnit*>(cu)->GetDIE(die_offset);
+                    if (spec_die)
+                        spec_die.GetAttributes(attributes, curr_depth + 1);
                 }
             }
             else
             {
-                const uint8_t fixed_skip_size = fixed_form_sizes [form];
+                const uint8_t fixed_skip_size = fixed_form_sizes.GetSize(form);
                 if (fixed_skip_size)
                     offset += fixed_skip_size;
                 else
@@ -1308,9 +984,19 @@ DWARFDebugInfoEntry::GetAttributeValue
     const DWARFCompileUnit* cu,
     const dw_attr_t attr,
     DWARFFormValue& form_value,
-    dw_offset_t* end_attr_offset_ptr
+    dw_offset_t* end_attr_offset_ptr,
+    bool check_specification_or_abstract_origin
 ) const
 {
+    SymbolFileDWARFDwo* dwo_symbol_file = cu->GetDwoSymbolFile();
+    if (dwo_symbol_file && m_tag != DW_TAG_compile_unit)
+        return GetAttributeValue(dwo_symbol_file,
+                                 dwo_symbol_file->GetCompileUnit(),
+                                 attr,
+                                 form_value,
+                                 end_attr_offset_ptr,
+                                 check_specification_or_abstract_origin);
+
     lldb::offset_t offset;
     const DWARFAbbreviationDeclaration* abbrevDecl = GetAbbreviationDeclarationPtr(dwarf2Data, cu, offset);
 
@@ -1338,7 +1024,58 @@ DWARFDebugInfoEntry::GetAttributeValue
         }
     }
 
-    return 0;
+    if (check_specification_or_abstract_origin)
+    {
+        if (GetAttributeValue(dwarf2Data, cu, DW_AT_specification, form_value))
+        {
+            DWARFDIE die = const_cast<DWARFCompileUnit*>(cu)->GetDIE(form_value.Reference());
+            if (die)
+            {
+                dw_offset_t die_offset = die.GetDIE()->GetAttributeValue(die.GetDWARF(),
+                                                                         die.GetCU(),
+                                                                         attr,
+                                                                         form_value,
+                                                                         end_attr_offset_ptr,
+                                                                         false);
+                if (die_offset)
+                    return die_offset;
+            }
+        }
+
+        if (GetAttributeValue(dwarf2Data, cu, DW_AT_abstract_origin, form_value))
+        {
+            DWARFDIE die = const_cast<DWARFCompileUnit*>(cu)->GetDIE(form_value.Reference());
+            if (die)
+            {
+                dw_offset_t die_offset = die.GetDIE()->GetAttributeValue(die.GetDWARF(),
+                                                                         die.GetCU(),
+                                                                         attr,
+                                                                         form_value,
+                                                                         end_attr_offset_ptr,
+                                                                         false);
+                if (die_offset)
+                    return die_offset;
+            }
+        }
+    }
+
+    if (!dwo_symbol_file)
+        return 0;
+
+    DWARFCompileUnit* dwo_cu = dwo_symbol_file->GetCompileUnit();
+    if (!dwo_cu)
+        return 0;
+
+    DWARFDIE dwo_cu_die = dwo_cu->GetCompileUnitDIEOnly();
+    if (!dwo_cu_die.IsValid())
+        return 0;
+
+    return dwo_cu_die.GetDIE()->GetAttributeValue(dwo_symbol_file,
+                                                  dwo_cu,
+                                                  attr,
+                                                  form_value,
+                                                  end_attr_offset_ptr,
+                                                  check_specification_or_abstract_origin);
 }
 
 //----------------------------------------------------------------------
@@ -1355,11 +1092,12 @@ DWARFDebugInfoEntry::GetAttributeValueAsString
     SymbolFileDWARF* dwarf2Data,
     const DWARFCompileUnit* cu,
     const dw_attr_t attr,
-    const char* fail_value) const
+    const char* fail_value,
+    bool check_specification_or_abstract_origin) const
 {
     DWARFFormValue form_value;
-    if (GetAttributeValue(dwarf2Data, cu, attr, form_value))
-        return form_value.AsCString(&dwarf2Data->get_debug_str_data());
+    if (GetAttributeValue(dwarf2Data, cu, attr, form_value, nullptr, check_specification_or_abstract_origin))
+        return form_value.AsCString();
     return fail_value;
 }
 
@@ -1374,11 +1112,12 @@ DWARFDebugInfoEntry::GetAttributeValueAsUnsigned
     SymbolFileDWARF* dwarf2Data,
     const DWARFCompileUnit* cu,
     const dw_attr_t attr,
-    uint64_t fail_value
+    uint64_t fail_value,
+    bool check_specification_or_abstract_origin
 ) const
 {
     DWARFFormValue form_value;
-    if (GetAttributeValue(dwarf2Data, cu, attr, form_value))
+    if (GetAttributeValue(dwarf2Data, cu, attr, form_value, nullptr, check_specification_or_abstract_origin))
         return form_value.Unsigned();
     return fail_value;
 }
@@ -1394,11 +1133,12 @@ DWARFDebugInfoEntry::GetAttributeValueAsSigned
     SymbolFileDWARF* dwarf2Data,
     const DWARFCompileUnit* cu,
     const dw_attr_t attr,
-    int64_t fail_value
+    int64_t fail_value,
+    bool check_specification_or_abstract_origin
 ) const
 {
     DWARFFormValue form_value;
-    if (GetAttributeValue(dwarf2Data, cu, attr, form_value))
+    if (GetAttributeValue(dwarf2Data, cu, attr, form_value, nullptr, check_specification_or_abstract_origin))
         return form_value.Signed();
     return fail_value;
 }
@@ -1415,15 +1155,32 @@ DWARFDebugInfoEntry::GetAttributeValueAsReference
     SymbolFileDWARF* dwarf2Data,
     const DWARFCompileUnit* cu,
     const dw_attr_t attr,
-    uint64_t fail_value
+    uint64_t fail_value,
+    bool check_specification_or_abstract_origin
 ) const
 {
     DWARFFormValue form_value;
-    if (GetAttributeValue(dwarf2Data, cu, attr, form_value))
+    if (GetAttributeValue(dwarf2Data, cu, attr, form_value, nullptr, check_specification_or_abstract_origin))
         return form_value.Reference();
     return fail_value;
 }
 
+uint64_t
+DWARFDebugInfoEntry::GetAttributeValueAsAddress
+(
+    SymbolFileDWARF* dwarf2Data,
+    const DWARFCompileUnit* cu,
+    const dw_attr_t attr,
+    uint64_t fail_value,
+    bool check_specification_or_abstract_origin
+) const
+{
+    DWARFFormValue form_value;
+    if (GetAttributeValue(dwarf2Data, cu, attr, form_value, nullptr, check_specification_or_abstract_origin))
+        return form_value.Address();
+    return fail_value;
+}
+
 //----------------------------------------------------------------------
 // GetAttributeHighPC
 //
@@ -1438,17 +1195,19 @@ DWARFDebugInfoEntry::GetAttributeHighPC
     SymbolFileDWARF* dwarf2Data,
     const DWARFCompileUnit* cu,
     dw_addr_t lo_pc,
-    uint64_t fail_value
+    uint64_t fail_value,
+    bool check_specification_or_abstract_origin
 ) const
 {
     DWARFFormValue form_value;
-
-    if (GetAttributeValue(dwarf2Data, cu, DW_AT_high_pc, form_value))
+    if (GetAttributeValue(dwarf2Data, cu, DW_AT_high_pc, form_value, nullptr, check_specification_or_abstract_origin))
     {
-        dw_addr_t hi_pc = form_value.Unsigned();
-        if (form_value.Form() != DW_FORM_addr)
-            hi_pc += lo_pc; // DWARF4 can specify the hi_pc as an <offset-from-lowpc>
-        return hi_pc; 
+        dw_form_t form = form_value.Form();
+        if (form == DW_FORM_addr || form == DW_FORM_GNU_addr_index)
+            return form_value.Address();
+        
+        // DWARF4 can specify the hi_pc as an <offset-from-lowpc>
+        return lo_pc + form_value.Unsigned();
     }
     return fail_value;
 }
@@ -1468,13 +1227,14 @@ DWARFDebugInfoEntry::GetAttributeAddressRange
     const DWARFCompileUnit* cu,
     dw_addr_t& lo_pc,
     dw_addr_t& hi_pc,
-    uint64_t fail_value
+    uint64_t fail_value,
+    bool check_specification_or_abstract_origin
 ) const
 {
-    lo_pc = GetAttributeValueAsUnsigned(dwarf2Data, cu, DW_AT_low_pc, fail_value);
+    lo_pc = GetAttributeValueAsAddress(dwarf2Data, cu, DW_AT_low_pc, fail_value, check_specification_or_abstract_origin);
     if (lo_pc != fail_value)
     {
-        hi_pc = GetAttributeHighPC(dwarf2Data, cu, lo_pc, fail_value);
+        hi_pc = GetAttributeHighPC(dwarf2Data, cu, lo_pc, fail_value, check_specification_or_abstract_origin);
         if (hi_pc != fail_value)
           return true;
     }
@@ -1484,89 +1244,40 @@ DWARFDebugInfoEntry::GetAttributeAddressRange
 }
 
 size_t
-DWARFDebugInfoEntry::GetAttributeAddressRanges(SymbolFileDWARF* dwarf2Data,
-                                               const DWARFCompileUnit* cu,
-                                               DWARFDebugRanges::RangeList &ranges,
-                                               bool check_hi_lo_pc) const
+DWARFDebugInfoEntry::GetAttributeAddressRanges (SymbolFileDWARF* dwarf2Data,
+                                                const DWARFCompileUnit* cu,
+                                                DWARFRangeList &ranges,
+                                                bool check_hi_lo_pc,
+                                                bool check_specification_or_abstract_origin) const
 {
     ranges.Clear();
     
-    dw_offset_t ranges_offset = GetAttributeValueAsUnsigned(dwarf2Data, cu, DW_AT_ranges, DW_INVALID_OFFSET);
-    if (ranges_offset != DW_INVALID_OFFSET)
+    dw_offset_t debug_ranges_offset = GetAttributeValueAsUnsigned(dwarf2Data,
+                                                                  cu,
+                                                                  DW_AT_ranges,
+                                                                  DW_INVALID_OFFSET,
+                                                                  check_specification_or_abstract_origin);
+    if (debug_ranges_offset != DW_INVALID_OFFSET)
     {
-        dw_offset_t debug_ranges_offset = GetAttributeValueAsUnsigned(dwarf2Data, cu, DW_AT_ranges, DW_INVALID_OFFSET);
-        if (debug_ranges_offset != DW_INVALID_OFFSET)
-        {
-            DWARFDebugRanges* debug_ranges = dwarf2Data->DebugRanges();
-            
-            debug_ranges->FindRanges(debug_ranges_offset, ranges);
-            ranges.Slide (cu->GetBaseAddress());
-        }
+        DWARFDebugRanges* debug_ranges = dwarf2Data->DebugRanges();
+        
+        debug_ranges->FindRanges(debug_ranges_offset, ranges);
+        ranges.Slide (cu->GetBaseAddress());
     }
     else if (check_hi_lo_pc)
     {
         dw_addr_t lo_pc = LLDB_INVALID_ADDRESS;
         dw_addr_t hi_pc = LLDB_INVALID_ADDRESS;
-        if (GetAttributeAddressRange (dwarf2Data, cu, lo_pc, hi_pc, LLDB_INVALID_ADDRESS))
+        if (GetAttributeAddressRange (dwarf2Data, cu, lo_pc, hi_pc, LLDB_INVALID_ADDRESS, check_specification_or_abstract_origin))
         {
             if (lo_pc < hi_pc)
-                ranges.Append(DWARFDebugRanges::RangeList::Entry(lo_pc, hi_pc - lo_pc));
+                ranges.Append(DWARFRangeList::Entry(lo_pc, hi_pc - lo_pc));
         }
     }
     return ranges.GetSize();
 }
 
 //----------------------------------------------------------------------
-// GetAttributeValueAsLocation
-//
-// Get the value of an attribute as reference and fix up and compile
-// unit relative offsets as needed.
-//----------------------------------------------------------------------
-dw_offset_t
-DWARFDebugInfoEntry::GetAttributeValueAsLocation
-(
-    SymbolFileDWARF* dwarf2Data,
-    const DWARFCompileUnit* cu,
-    const dw_attr_t attr,
-    DWARFDataExtractor& location_data,
-    uint32_t &block_size
-) const
-{
-    block_size = 0;
-    DWARFFormValue form_value;
-
-    // Empty out data in case we don't find anything
-    location_data.Clear();
-    dw_offset_t end_addr_offset = DW_INVALID_OFFSET;
-    const dw_offset_t attr_offset = GetAttributeValue(dwarf2Data, cu, attr, form_value, &end_addr_offset);
-    if (attr_offset)
-    {
-        const uint8_t* blockData = form_value.BlockData();
-        if (blockData)
-        {
-            // We have an inlined location list in the .debug_info section
-            const DWARFDataExtractor& debug_info = dwarf2Data->get_debug_info_data();
-            dw_offset_t block_offset = blockData - debug_info.GetDataStart();
-            block_size = (end_addr_offset - attr_offset) - form_value.Unsigned();
-            location_data.SetData(debug_info, block_offset, block_size);
-        }
-        else
-        {
-            // We have a location list offset as the value that is
-            // the offset into the .debug_loc section that describes
-            // the value over it's lifetime
-            lldb::offset_t debug_loc_offset = form_value.Unsigned();
-            if (dwarf2Data)
-            {
-                assert(dwarf2Data->get_debug_loc_data().GetAddressByteSize() == cu->GetAddressByteSize());
-                return DWARFLocationList::Extract(dwarf2Data->get_debug_loc_data(), &debug_loc_offset, location_data);
-            }
-        }
-    }
-    return attr_offset;
-}
-
-//----------------------------------------------------------------------
 // GetName
 //
 // Get value of the DW_AT_name attribute and return it if one exists,
@@ -1579,27 +1290,9 @@ DWARFDebugInfoEntry::GetName
     const DWARFCompileUnit* cu
 ) const
 {
-    DWARFFormValue form_value;
-    if (GetAttributeValue(dwarf2Data, cu, DW_AT_name, form_value))
-        return form_value.AsCString(&dwarf2Data->get_debug_str_data());
-    else if (GetAttributeValue(dwarf2Data, cu, DW_AT_specification, form_value))
-    {
-        DWARFCompileUnitSP cu_sp_ptr;
-        const DWARFDebugInfoEntry* die = const_cast<SymbolFileDWARF*>(dwarf2Data)->DebugInfo()->GetDIEPtr(form_value.Reference(), &cu_sp_ptr);
-        if (die)
-            return die->GetName(dwarf2Data, cu_sp_ptr.get());
-    }
-    else if (GetAttributeValue(dwarf2Data, cu, DW_AT_abstract_origin, form_value))
-    {
-        DWARFCompileUnitSP cu_sp_ptr;
-        const DWARFDebugInfoEntry* die = const_cast<SymbolFileDWARF*>(dwarf2Data)->DebugInfo()->GetDIEPtr(form_value.Reference(), &cu_sp_ptr);
-        if (die)
-            return die->GetName(dwarf2Data, cu_sp_ptr.get());
-    }
-    return nullptr;
+    return GetAttributeValueAsString(dwarf2Data, cu, DW_AT_name, nullptr, true);
 }
 
-
 //----------------------------------------------------------------------
 // GetMangledName
 //
@@ -1614,20 +1307,20 @@ DWARFDebugInfoEntry::GetMangledName
     bool substitute_name_allowed
 ) const
 {
-    const char* name = NULL;
-    DWARFFormValue form_value;
+    const char* name = nullptr;
 
-    if (GetAttributeValue(dwarf2Data, cu, DW_AT_MIPS_linkage_name, form_value))
-        name = form_value.AsCString(&dwarf2Data->get_debug_str_data());
+    name = GetAttributeValueAsString(dwarf2Data, cu, DW_AT_MIPS_linkage_name, nullptr, true);
+    if (name)
+        return name;
 
-    if (GetAttributeValue(dwarf2Data, cu, DW_AT_linkage_name, form_value))
-        name = form_value.AsCString(&dwarf2Data->get_debug_str_data());
+    name = GetAttributeValueAsString(dwarf2Data, cu, DW_AT_linkage_name, nullptr, true);
+    if (name)
+        return name;
 
-    if (substitute_name_allowed && name == NULL)
-    {
-        if (GetAttributeValue(dwarf2Data, cu, DW_AT_name, form_value))
-            name = form_value.AsCString(&dwarf2Data->get_debug_str_data());
-    }
+    if (!substitute_name_allowed)
+        return nullptr;
+
+    name = GetAttributeValueAsString(dwarf2Data, cu, DW_AT_name, nullptr, true);
     return name;
 }
 
@@ -1645,27 +1338,19 @@ DWARFDebugInfoEntry::GetPubname
     const DWARFCompileUnit* cu
 ) const
 {
-    const char* name = NULL;
+    const char* name = nullptr;
     if (!dwarf2Data)
         return name;
-    
-    DWARFFormValue form_value;
 
-    if (GetAttributeValue(dwarf2Data, cu, DW_AT_MIPS_linkage_name, form_value))
-        name = form_value.AsCString(&dwarf2Data->get_debug_str_data());
-    else if (GetAttributeValue(dwarf2Data, cu, DW_AT_linkage_name, form_value))
-        name = form_value.AsCString(&dwarf2Data->get_debug_str_data());
-    else if (GetAttributeValue(dwarf2Data, cu, DW_AT_name, form_value))
-        name = form_value.AsCString(&dwarf2Data->get_debug_str_data());
-    else if (GetAttributeValue(dwarf2Data, cu, DW_AT_specification, form_value))
-    {
-        // The specification DIE may be in another compile unit so we need
-        // to get a die and its compile unit.
-        DWARFCompileUnitSP cu_sp_ptr;
-        const DWARFDebugInfoEntry* die = const_cast<SymbolFileDWARF*>(dwarf2Data)->DebugInfo()->GetDIEPtr(form_value.Reference(), &cu_sp_ptr);
-        if (die)
-            return die->GetPubname(dwarf2Data, cu_sp_ptr.get());
-    }
+    name = GetAttributeValueAsString(dwarf2Data, cu, DW_AT_MIPS_linkage_name, nullptr, true);
+    if (name)
+        return name;
+
+    name = GetAttributeValueAsString(dwarf2Data, cu, DW_AT_linkage_name, nullptr, true);
+    if (name)
+        return name;
+
+    name = GetAttributeValueAsString(dwarf2Data, cu, DW_AT_name, nullptr, true);
     return name;
 }
 
@@ -1705,15 +1390,11 @@ DWARFDebugInfoEntry::GetName
         }
         else
         {
-            DWARFFormValue form_value;
-            if (die.GetAttributeValue(dwarf2Data, cu, DW_AT_name, form_value))
+            const char* name = die.GetAttributeValueAsString(dwarf2Data, cu, DW_AT_name, nullptr, true);
+            if (name)
             {
-                const char* name = form_value.AsCString(&dwarf2Data->get_debug_str_data());
-                if (name)
-                {
-                    s.PutCString(name);
-                    return true;
-                }
+                s.PutCString(name);
+                return true;
             }
         }
     }
@@ -1755,8 +1436,6 @@ DWARFDebugInfoEntry::AppendTypeName
         else
         {
             const char* name = die.GetPubname(dwarf2Data, cu);
-        //  if (die.GetAttributeValue(dwarf2Data, cu, DW_AT_name, form_value))
-        //      name = form_value.AsCString(&dwarf2Data->get_debug_str_data());
             if (name)
                 s.PutCString(name);
             else
@@ -1909,16 +1588,12 @@ DWARFDebugInfoEntry::BuildFunctionAddressRangeTable
 }
 
 void
-DWARFDebugInfoEntry::GetDeclContextDIEs (SymbolFileDWARF* dwarf2Data, 
-                                         DWARFCompileUnit* cu,
+DWARFDebugInfoEntry::GetDeclContextDIEs (DWARFCompileUnit* cu,
                                          DWARFDIECollection &decl_context_dies) const
 {
-    const DWARFDebugInfoEntry *parent_decl_ctx_die = GetParentDeclContextDIE (dwarf2Data, cu);
-    if (parent_decl_ctx_die && parent_decl_ctx_die != this)
-    {
-        decl_context_dies.Append(parent_decl_ctx_die);
-        parent_decl_ctx_die->GetDeclContextDIEs (dwarf2Data, cu, decl_context_dies);
-    }
+
+    DWARFDIE die (cu, const_cast<DWARFDebugInfoEntry *>(this));
+    die.GetDeclContextDIEs(decl_context_dies);
 }
 
 void
@@ -1930,11 +1605,11 @@ DWARFDebugInfoEntry::GetDWARFDeclContext (SymbolFileDWARF* dwarf2Data,
     if (tag != DW_TAG_compile_unit)
     {
         dwarf_decl_ctx.AppendDeclContext(tag, GetName(dwarf2Data, cu));
-        const DWARFDebugInfoEntry *parent_decl_ctx_die = GetParentDeclContextDIE (dwarf2Data, cu);
-        if (parent_decl_ctx_die && parent_decl_ctx_die != this)
+        DWARFDIE parent_decl_ctx_die = GetParentDeclContextDIE (dwarf2Data, cu);
+        if (parent_decl_ctx_die && parent_decl_ctx_die.GetDIE() != this)
         {
-            if (parent_decl_ctx_die->Tag() != DW_TAG_compile_unit)
-                parent_decl_ctx_die->GetDWARFDeclContext (dwarf2Data, cu, dwarf_decl_ctx);
+            if (parent_decl_ctx_die.Tag() != DW_TAG_compile_unit)
+                parent_decl_ctx_die.GetDIE()->GetDWARFDeclContext (parent_decl_ctx_die.GetDWARF(), parent_decl_ctx_die.GetCU(), dwarf_decl_ctx);
         }
     }
 }
@@ -1951,30 +1626,30 @@ DWARFDebugInfoEntry::MatchesDWARFDeclContext (SymbolFileDWARF* dwarf2Data,
     return this_dwarf_decl_ctx == dwarf_decl_ctx;
 }
 
-const DWARFDebugInfoEntry *
+DWARFDIE
 DWARFDebugInfoEntry::GetParentDeclContextDIE (SymbolFileDWARF* dwarf2Data, 
 											  DWARFCompileUnit* cu) const
 {
-	DWARFDebugInfoEntry::Attributes attributes;
-	GetAttributes(dwarf2Data, cu, NULL, attributes);
+	DWARFAttributes attributes;
+	GetAttributes(cu, DWARFFormValue::FixedFormSizes(), attributes);
 	return GetParentDeclContextDIE (dwarf2Data, cu, attributes);
 }
 
-const DWARFDebugInfoEntry *
+DWARFDIE
 DWARFDebugInfoEntry::GetParentDeclContextDIE (SymbolFileDWARF* dwarf2Data, 
 											  DWARFCompileUnit* cu,
-											  const DWARFDebugInfoEntry::Attributes& attributes) const
+											  const DWARFAttributes& attributes) const
 {
-	const DWARFDebugInfoEntry * die = this;
-	
-	while (die != NULL)
+    DWARFDIE die (cu, const_cast<DWARFDebugInfoEntry *>(this));
+
+	while (die)
 	{
 		// If this is the original DIE that we are searching for a declaration 
 		// for, then don't look in the cache as we don't want our own decl 
 		// context to be our decl context...
-		if (die != this)
+		if (die.GetDIE() != this)
 		{            
-			switch (die->Tag())
+			switch (die.Tag())
 			{
 				case DW_TAG_compile_unit:
 				case DW_TAG_namespace:
@@ -1990,33 +1665,33 @@ DWARFDebugInfoEntry::GetParentDeclContextDIE (SymbolFileDWARF* dwarf2Data,
 		
 		dw_offset_t die_offset;
         
-		die_offset = attributes.FormValueAsUnsigned(dwarf2Data, DW_AT_specification, DW_INVALID_OFFSET);
+		die_offset = attributes.FormValueAsUnsigned(DW_AT_specification, DW_INVALID_OFFSET);
 		if (die_offset != DW_INVALID_OFFSET)
 		{
-			const DWARFDebugInfoEntry *spec_die = cu->GetDIEPtr (die_offset);
+			DWARFDIE spec_die = cu->GetDIE (die_offset);
 			if (spec_die)
-			{
-				const DWARFDebugInfoEntry *spec_die_decl_ctx_die = spec_die->GetParentDeclContextDIE (dwarf2Data, cu);
-				if (spec_die_decl_ctx_die)
-					return spec_die_decl_ctx_die;
-			}
+            {
+                DWARFDIE decl_ctx_die = spec_die.GetParentDeclContextDIE();
+                if (decl_ctx_die)
+                    return decl_ctx_die;
+            }
 		}
 		
-        die_offset = attributes.FormValueAsUnsigned(dwarf2Data, DW_AT_abstract_origin, DW_INVALID_OFFSET);
+        die_offset = attributes.FormValueAsUnsigned(DW_AT_abstract_origin, DW_INVALID_OFFSET);
 		if (die_offset != DW_INVALID_OFFSET)
 		{
-			const DWARFDebugInfoEntry *abs_die = cu->GetDIEPtr (die_offset);
+            DWARFDIE abs_die = cu->GetDIE (die_offset);
 			if (abs_die)
 			{
-				const DWARFDebugInfoEntry *abs_die_decl_ctx_die = abs_die->GetParentDeclContextDIE (dwarf2Data, cu);
-				if (abs_die_decl_ctx_die)
-					return abs_die_decl_ctx_die;
+                DWARFDIE decl_ctx_die = abs_die.GetParentDeclContextDIE();
+                if (decl_ctx_die)
+                    return decl_ctx_die;
 			}
 		}
 		
-		die = die->GetParent();
+		die = die.GetParent();
 	}
-    return NULL;
+    return DWARFDIE();
 }
 
 
@@ -2025,15 +1700,15 @@ DWARFDebugInfoEntry::GetQualifiedName (SymbolFileDWARF* dwarf2Data,
 									   DWARFCompileUnit* cu,
 									   std::string &storage) const
 {
-	DWARFDebugInfoEntry::Attributes attributes;
-	GetAttributes(dwarf2Data, cu, NULL, attributes);
+	DWARFAttributes attributes;
+	GetAttributes(cu, DWARFFormValue::FixedFormSizes(), attributes);
 	return GetQualifiedName (dwarf2Data, cu, attributes, storage);
 }
 
 const char*
 DWARFDebugInfoEntry::GetQualifiedName (SymbolFileDWARF* dwarf2Data, 
 									   DWARFCompileUnit* cu,
-									   const DWARFDebugInfoEntry::Attributes& attributes,
+									   const DWARFAttributes& attributes,
 									   std::string &storage) const
 {
 	
@@ -2041,47 +1716,47 @@ DWARFDebugInfoEntry::GetQualifiedName (SymbolFileDWARF* dwarf2Data,
 	
 	if (name)
 	{
-		const DWARFDebugInfoEntry *parent_decl_ctx_die = GetParentDeclContextDIE (dwarf2Data, cu);
+		DWARFDIE parent_decl_ctx_die = GetParentDeclContextDIE (dwarf2Data, cu);
 		storage.clear();
 		// TODO: change this to get the correct decl context parent....
 		while (parent_decl_ctx_die)
 		{
-			const dw_tag_t parent_tag = parent_decl_ctx_die->Tag();
+			const dw_tag_t parent_tag = parent_decl_ctx_die.Tag();
 			switch (parent_tag)
 			{
                 case DW_TAG_namespace:
-				{
-					const char *namespace_name = parent_decl_ctx_die->GetName (dwarf2Data, cu);
-					if (namespace_name)
-					{
-						storage.insert (0, "::");
-						storage.insert (0, namespace_name);
-					}
-					else
-					{
-						storage.insert (0, "(anonymous namespace)::");
-					}
-					parent_decl_ctx_die = parent_decl_ctx_die->GetParentDeclContextDIE(dwarf2Data, cu);
-				}
+                    {
+                        const char *namespace_name = parent_decl_ctx_die.GetName ();
+                        if (namespace_name)
+                        {
+                            storage.insert (0, "::");
+                            storage.insert (0, namespace_name);
+                        }
+                        else
+                        {
+                            storage.insert (0, "(anonymous namespace)::");
+                        }
+                        parent_decl_ctx_die = parent_decl_ctx_die.GetParentDeclContextDIE();
+                    }
                     break;
 					
                 case DW_TAG_class_type:
                 case DW_TAG_structure_type:
                 case DW_TAG_union_type:
-				{
-					const char *class_union_struct_name = parent_decl_ctx_die->GetName (dwarf2Data, cu);
-                    
-					if (class_union_struct_name)
-					{
-						storage.insert (0, "::");
-						storage.insert (0, class_union_struct_name);
-					}
-					parent_decl_ctx_die = parent_decl_ctx_die->GetParentDeclContextDIE(dwarf2Data, cu);
-				}
+                    {
+                        const char *class_union_struct_name = parent_decl_ctx_die.GetName ();
+                        
+                        if (class_union_struct_name)
+                        {
+                            storage.insert (0, "::");
+                            storage.insert (0, class_union_struct_name);
+                        }
+                        parent_decl_ctx_die = parent_decl_ctx_die.GetParentDeclContextDIE();
+                    }
                     break;
                     
                 default:
-                    parent_decl_ctx_die = NULL;
+                    parent_decl_ctx_die.Clear();
                     break;
 			}
 		}
@@ -2179,7 +1854,7 @@ DWARFDebugInfoEntry::LookupAddress
 
         if (match_addr_range)
         {
-            dw_addr_t lo_pc = GetAttributeValueAsUnsigned(dwarf2Data, cu, DW_AT_low_pc, LLDB_INVALID_ADDRESS);
+            dw_addr_t lo_pc = GetAttributeValueAsAddress(dwarf2Data, cu, DW_AT_low_pc, LLDB_INVALID_ADDRESS);
             if (lo_pc != LLDB_INVALID_ADDRESS)
             {
                 dw_addr_t hi_pc = GetAttributeHighPC(dwarf2Data, cu, lo_pc, LLDB_INVALID_ADDRESS);
@@ -2229,7 +1904,7 @@ DWARFDebugInfoEntry::LookupAddress
                 dw_offset_t debug_ranges_offset = GetAttributeValueAsUnsigned(dwarf2Data, cu, DW_AT_ranges, DW_INVALID_OFFSET);
                 if (debug_ranges_offset != DW_INVALID_OFFSET)
                 {
-                    DWARFDebugRanges::RangeList ranges;
+                    DWARFRangeList ranges;
                     DWARFDebugRanges* debug_ranges = dwarf2Data->DebugRanges();
                     debug_ranges->FindRanges(debug_ranges_offset, ranges);
                     // All DW_AT_ranges are relative to the base address of the
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.h b/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.h
index 3949ad339dd85..02bbff8defc0a 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.h
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.h
@@ -57,56 +57,6 @@ public:
     typedef offset_collection::iterator         offset_collection_iterator;
     typedef offset_collection::const_iterator   offset_collection_const_iterator;
 
-    class Attributes
-    {
-    public:
-        Attributes();
-        ~Attributes();
-
-        void Append(const DWARFCompileUnit *cu, dw_offset_t attr_die_offset, dw_attr_t attr, dw_form_t form);
-        const DWARFCompileUnit * CompileUnitAtIndex(uint32_t i) const { return m_infos[i].cu; }
-        dw_offset_t DIEOffsetAtIndex(uint32_t i) const { return m_infos[i].die_offset; }
-        dw_attr_t AttributeAtIndex(uint32_t i) const { return m_infos[i].attr; }
-        dw_attr_t FormAtIndex(uint32_t i) const { return m_infos[i].form; }
-        bool ExtractFormValueAtIndex (SymbolFileDWARF* dwarf2Data, uint32_t i, DWARFFormValue &form_value) const;
-        uint64_t FormValueAsUnsignedAtIndex (SymbolFileDWARF* dwarf2Data, uint32_t i, uint64_t fail_value) const;
-        uint64_t FormValueAsUnsigned (SymbolFileDWARF* dwarf2Data, dw_attr_t attr, uint64_t fail_value) const;
-        uint32_t FindAttributeIndex(dw_attr_t attr) const;
-        bool ContainsAttribute(dw_attr_t attr) const;
-        bool RemoveAttribute(dw_attr_t attr);
-        void Clear() { m_infos.clear(); }
-        size_t Size() const { return m_infos.size(); }
-
-    protected:
-        struct Info
-        {
-            const DWARFCompileUnit *cu; // Keep the compile unit with each attribute in case we have DW_FORM_ref_addr values
-            dw_offset_t die_offset;
-            dw_attr_t attr;
-            dw_form_t form;
-        };
-
-        typedef llvm::SmallVector<Info, 8> collection;
-        collection m_infos;
-    };
-
-    struct CompareState
-    {
-        CompareState() :
-            die_offset_pairs()
-        {
-            assert(sizeof(dw_offset_t)*2 == sizeof(uint64_t));
-        }
-
-        bool AddTypePair(dw_offset_t a, dw_offset_t b)
-        {
-            uint64_t a_b_offsets = (uint64_t)a << 32 | (uint64_t)b;
-            // Return true if this type was inserted, false otherwise
-            return die_offset_pairs.insert(a_b_offsets).second;
-        }
-        std::set< uint64_t > die_offset_pairs;
-    };
-
                 DWARFDebugInfoEntry():
                     m_offset        (DW_INVALID_OFFSET),
                     m_parent_idx    (0),
@@ -144,7 +94,7 @@ public:
     bool        FastExtract(
                     const lldb_private::DWARFDataExtractor& debug_info_data,
                     const DWARFCompileUnit* cu,
-                    const uint8_t *fixed_form_sizes,
+                    const DWARFFormValue::FixedFormSizes& fixed_form_sizes,
                     lldb::offset_t* offset_ptr);
 
     bool        Extract(
@@ -160,68 +110,67 @@ public:
                     DWARFDebugInfoEntry** block_die);
 
     size_t      GetAttributes(
-                    SymbolFileDWARF* dwarf2Data,
                     const DWARFCompileUnit* cu,
-                    const uint8_t *fixed_form_sizes,
-                    DWARFDebugInfoEntry::Attributes& attrs,
+                    DWARFFormValue::FixedFormSizes fixed_form_sizes,
+                    DWARFAttributes& attrs,
                     uint32_t curr_depth = 0) const; // "curr_depth" for internal use only, don't set this yourself!!!
 
-    dw_offset_t GetAttributeValue(
-                    SymbolFileDWARF* dwarf2Data,
-                    const DWARFCompileUnit* cu,
-                    const dw_attr_t attr,
-                    DWARFFormValue& formValue,
-                    dw_offset_t* end_attr_offset_ptr = NULL) const;
-
     const char* GetAttributeValueAsString(
                     SymbolFileDWARF* dwarf2Data,
                     const DWARFCompileUnit* cu,
                     const dw_attr_t attr,
-                    const char* fail_value) const;
+                    const char* fail_value,
+                    bool check_specification_or_abstract_origin = false) const;
 
     uint64_t    GetAttributeValueAsUnsigned(
                     SymbolFileDWARF* dwarf2Data,
                     const DWARFCompileUnit* cu,
                     const dw_attr_t attr,
-                    uint64_t fail_value) const;
+                    uint64_t fail_value,
+                    bool check_specification_or_abstract_origin = false) const;
 
     uint64_t    GetAttributeValueAsReference(
                     SymbolFileDWARF* dwarf2Data,
                     const DWARFCompileUnit* cu,
                     const dw_attr_t attr,
-                    uint64_t fail_value) const;
+                    uint64_t fail_value,
+                    bool check_specification_or_abstract_origin = false) const;
 
     int64_t     GetAttributeValueAsSigned(
                     SymbolFileDWARF* dwarf2Data,
                     const DWARFCompileUnit* cu,
                     const dw_attr_t attr,
-                    int64_t fail_value) const;
+                    int64_t fail_value,
+                    bool check_specification_or_abstract_origin = false) const;
+
+    uint64_t    GetAttributeValueAsAddress(
+                    SymbolFileDWARF* dwarf2Data,
+                    const DWARFCompileUnit* cu,
+                    const dw_attr_t attr,
+                    uint64_t fail_value,
+                    bool check_specification_or_abstract_origin = false) const;
 
     dw_addr_t   GetAttributeHighPC(
                     SymbolFileDWARF* dwarf2Data,
                     const DWARFCompileUnit* cu,
                     dw_addr_t lo_pc,
-                    uint64_t fail_value) const;
+                    uint64_t fail_value,
+                    bool check_specification_or_abstract_origin = false) const;
 
     bool        GetAttributeAddressRange(
                     SymbolFileDWARF* dwarf2Data,
                     const DWARFCompileUnit* cu,
                     dw_addr_t& lo_pc,
                     dw_addr_t& hi_pc,
-                    uint64_t fail_value) const;
+                    uint64_t fail_value,
+                    bool check_specification_or_abstract_origin = false) const;
     
     size_t      GetAttributeAddressRanges (
                     SymbolFileDWARF* dwarf2Data,
                     const DWARFCompileUnit* cu,
-                    DWARFDebugRanges::RangeList &ranges,
-                    bool check_hi_lo_pc) const;
-    
-    dw_offset_t GetAttributeValueAsLocation(
-                    SymbolFileDWARF* dwarf2Data,
-                    const DWARFCompileUnit* cu,
-                    const dw_attr_t attr,
-                    lldb_private::DWARFDataExtractor& data,
-                    uint32_t &block_size) const;
+                    DWARFRangeList &ranges,
+                    bool check_hi_lo_pc,
+                    bool check_specification_or_abstract_origin = false) const;
 
     const char* GetName(
                     SymbolFileDWARF* dwarf2Data,
@@ -256,25 +205,9 @@ public:
     const char * GetQualifiedName (
                     SymbolFileDWARF* dwarf2Data, 
                     DWARFCompileUnit* cu,
-                    const DWARFDebugInfoEntry::Attributes& attributes,
+                    const DWARFAttributes& attributes,
                     std::string &storage) const;
 
-//    static int  Compare(
-//                    SymbolFileDWARF* dwarf2Data,
-//                    dw_offset_t a_die_offset,
-//                    dw_offset_t b_die_offset,
-//                    CompareState &compare_state,
-//                    bool compare_siblings,
-//                    bool compare_children);
-//
-//    static int Compare(
-//                    SymbolFileDWARF* dwarf2Data,
-//                    DWARFCompileUnit* a_cu, const DWARFDebugInfoEntry* a_die,
-//                    DWARFCompileUnit* b_cu, const DWARFDebugInfoEntry* b_die,
-//                    CompareState &compare_state,
-//                    bool compare_siblings,
-//                    bool compare_children);
-
     static bool OffsetLessThan (
                     const DWARFDebugInfoEntry& a,
                     const DWARFDebugInfoEntry& b);
@@ -311,7 +244,7 @@ public:
                     const DWARFCompileUnit* cu,
                     const char * &name,
                     const char * &mangled,
-                    DWARFDebugRanges::RangeList& rangeList,
+                    DWARFRangeList& rangeList,
                     int& decl_file,
                     int& decl_line,
                     int& decl_column,
@@ -376,8 +309,7 @@ public:
     const   DWARFDebugInfoEntry*    GetFirstChild() const   { return (HasChildren() && !m_empty_children) ? this + 1 : NULL; }
 
     
-    void                            GetDeclContextDIEs (SymbolFileDWARF* dwarf2Data, 
-                                                        DWARFCompileUnit* cu,
+    void                            GetDeclContextDIEs (DWARFCompileUnit* cu,
                                                         DWARFDIECollection &decl_context_dies) const;
 
     void                            GetDWARFDeclContext (SymbolFileDWARF* dwarf2Data,
@@ -389,11 +321,11 @@ public:
                                                             DWARFCompileUnit* cu,
                                                             const DWARFDeclContext &dwarf_decl_ctx) const;
 
-    const   DWARFDebugInfoEntry*    GetParentDeclContextDIE (SymbolFileDWARF* dwarf2Data, 
+            DWARFDIE                GetParentDeclContextDIE (SymbolFileDWARF* dwarf2Data,
                                                              DWARFCompileUnit* cu) const;
-    const   DWARFDebugInfoEntry*    GetParentDeclContextDIE (SymbolFileDWARF* dwarf2Data, 
+            DWARFDIE                GetParentDeclContextDIE (SymbolFileDWARF* dwarf2Data,
                                                              DWARFCompileUnit* cu, 
-                                                             const DWARFDebugInfoEntry::Attributes& attributes) const;
+                                                             const DWARFAttributes& attributes) const;
 
     void        
     SetParent (DWARFDebugInfoEntry* parent)     
@@ -450,6 +382,13 @@ public:
                        DWARFDebugInfoEntry::collection &die_collection);
 
 protected:
+    dw_offset_t GetAttributeValue(SymbolFileDWARF* dwarf2Data,
+                                  const DWARFCompileUnit* cu,
+                                  const dw_attr_t attr,
+                                  DWARFFormValue& formValue,
+                                  dw_offset_t* end_attr_offset_ptr = nullptr,
+                                  bool check_specification_or_abstract_origin = false) const;
+
     dw_offset_t m_offset;           // Offset within the .debug_info of the start of this entry
     uint32_t    m_parent_idx;       // How many to subtract from "this" to get the parent. If zero this die has no parent
     uint32_t    m_sibling_idx:31,   // How many to add to "this" to get the sibling.
@@ -457,7 +396,6 @@ protected:
     uint32_t    m_abbr_idx:DIE_ABBR_IDX_BITSIZE,
                 m_has_children:1,   // Set to 1 if this DIE has children
                 m_tag:16;           // A copy of the DW_TAG value so we don't have to go through the compile unit abbrev table
-                
 };
 
 #endif  // SymbolFileDWARF_DWARFDebugInfoEntry_h_
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.cpp b/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.cpp
index 48e11bd800892..84c2142e84193 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.cpp
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.cpp
@@ -249,7 +249,7 @@ DWARFDebugLine::DumpStatementOpcodes(Log *log, const DWARFDataExtractor& debug_l
                             fileEntry.length    = debug_line_data.GetULEB128(&offset);
                             log->Printf( "0x%8.8x: DW_LNE_define_file('%s', dir=%i, mod_time=0x%8.8x, length=%i )",
                                     op_offset,
-                                    fileEntry.name.c_str(),
+                                    fileEntry.name,
                                     fileEntry.dir_idx,
                                     fileEntry.mod_time,
                                     fileEntry.length);
@@ -486,65 +486,25 @@ DWARFDebugLine::ParseSupportFiles (const lldb::ModuleSP &module_sp,
                                    FileSpecList &support_files)
 {
     lldb::offset_t offset = stmt_list;
-    // Skip the total length
-    (void)debug_line_data.GetDWARFInitialLength(&offset);
-    uint32_t version = debug_line_data.GetU16(&offset);
-    if (version < 2 || version > 4)
-      return false;
 
-    const dw_offset_t end_prologue_offset = debug_line_data.GetDWARFOffset(&offset) + offset;
-    // Skip instruction length, default is stmt, line base, line range
-    offset += 4;
-    // For DWARF4, skip maximum operations per instruction
-    if (version >= 4)
-        offset += 1;
-    // Skip opcode base, and all opcode lengths
-    const uint8_t opcode_base = debug_line_data.GetU8(&offset);
-    offset += opcode_base - 1;
-    std::vector<FileSpec> include_directories{{}}; // Directory at index zero doesn't exist
-    while (offset < end_prologue_offset)
+    Prologue prologue;
+    if (!ParsePrologue(debug_line_data, &offset, &prologue))
     {
-        FileSpec dir{debug_line_data.GetCStr(&offset), false};
-        if (dir)
-            include_directories.emplace_back(std::move(dir));
-        else
-            break;
+        Host::SystemLog (Host::eSystemLogError, "error: parsing line table prologue at 0x%8.8x (parsing ended around 0x%8.8" PRIx64 "\n", stmt_list, offset);
+        return false;
     }
-    while (offset < end_prologue_offset)
-    {
-        FileSpec file_spec{debug_line_data.GetCStr(&offset), false};
-        if (file_spec)
-        {
-            uint32_t dir_idx = debug_line_data.GetULEB128(&offset);
-            debug_line_data.Skip_LEB128(&offset); // Skip mod_time
-            debug_line_data.Skip_LEB128(&offset); // Skip length
 
-            if (file_spec.IsRelative())
-            {
-                if (0 < dir_idx && dir_idx < include_directories.size())
-                {
-                    const FileSpec &dir = include_directories[dir_idx];
-                    file_spec.PrependPathComponent(dir);
-                }
-                if (file_spec.IsRelative())
-                    file_spec.PrependPathComponent(cu_comp_dir);
-            }
-            std::string remapped_file;
-            if (module_sp->RemapSourceFile(file_spec.GetCString(), remapped_file))
-                file_spec.SetFile(remapped_file, false);
-            support_files.Append(file_spec);
-        }
-    }
+    FileSpec file_spec;
+    std::string remapped_file;
 
-    if (offset != end_prologue_offset)
+    for (uint32_t file_idx = 1; prologue.GetFile(file_idx, cu_comp_dir, file_spec); ++file_idx)
     {
-        Host::SystemLog (Host::eSystemLogError, 
-                         "warning: parsing line table prologue at 0x%8.8x should have ended at 0x%8.8x but it ended at 0x%8.8" PRIx64 "\n",
-                         stmt_list, 
-                         end_prologue_offset, 
-                         offset);
+        if (module_sp->RemapSourceFile(file_spec.GetCString(), remapped_file))
+            file_spec.SetFile(remapped_file, false);
+        support_files.Append(file_spec);
+
     }
-    return end_prologue_offset;
+    return true;
 }
 
 //----------------------------------------------------------------------
@@ -900,7 +860,7 @@ DWARFDebugLine::Prologue::Dump(Log *log)
     {
         for (i=0; i<include_directories.size(); ++i)
         {
-            log->Printf( "include_directories[%3u] = '%s'", i+1, include_directories[i].c_str());
+            log->Printf( "include_directories[%3u] = '%s'", i+1, include_directories[i]);
         }
     }
 
@@ -916,7 +876,7 @@ DWARFDebugLine::Prologue::Dump(Log *log)
                 fileEntry.dir_idx,
                 fileEntry.mod_time,
                 fileEntry.length,
-                fileEntry.name.c_str());
+                fileEntry.name);
         }
     }
 }
@@ -959,17 +919,28 @@ DWARFDebugLine::Prologue::Dump(Log *log)
 //}
 
 
-bool DWARFDebugLine::Prologue::GetFile(uint32_t file_idx, std::string& path, std::string& directory) const
+bool DWARFDebugLine::Prologue::GetFile(uint32_t file_idx, const char *comp_dir, FileSpec &file) const
 {
     uint32_t idx = file_idx - 1;    // File indexes are 1 based...
     if (idx < file_names.size())
     {
-        path = file_names[idx].name;
-        uint32_t dir_idx = file_names[idx].dir_idx - 1;
-        if (dir_idx < include_directories.size())
-            directory = include_directories[dir_idx];
-        else
-            directory.clear();
+        file.SetFile(file_names[idx].name, false);
+        if (file.IsRelative())
+        {
+            if (file_names[idx].dir_idx > 0)
+            {
+                const uint32_t dir_idx = file_names[idx].dir_idx - 1;
+                if (dir_idx < include_directories.size())
+                {
+                    file.PrependPathComponent(include_directories[dir_idx]);
+                    if (!file.IsRelative())
+                        return true;
+                }
+            }
+
+            if (comp_dir && comp_dir[0])
+                file.PrependPathComponent(comp_dir);
+        }
         return true;
     }
     return false;
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.h b/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.h
index 7da0e76a22be3..9f2219b018127 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.h
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.h
@@ -20,7 +20,6 @@
 #include "DWARFDefines.h"
 
 class SymbolFileDWARF;
-class DWARFDebugInfoEntry;
 
 //----------------------------------------------------------------------
 // DWARFDebugLine
@@ -34,14 +33,14 @@ public:
     struct FileNameEntry
     {
         FileNameEntry() :
-            name(),
+            name(nullptr),
             dir_idx(0),
             mod_time(0),
             length(0)
         {
         }
 
-        std::string     name;
+        const char*     name;
         dw_sleb128_t    dir_idx;
         dw_sleb128_t    mod_time;
         dw_sleb128_t    length;
@@ -81,7 +80,7 @@ public:
         uint8_t     line_range;     // This parameter affects the meaning of the special opcodes. See below.
         uint8_t     opcode_base;    // The number assigned to the first special opcode.
         std::vector<uint8_t>            standard_opcode_lengths;
-        std::vector<std::string>        include_directories;
+        std::vector<const char *>       include_directories;
         std::vector<FileNameEntry>      file_names;
 
         int32_t MaxLineIncrementForSpecialOpcode() const { return line_base + (int8_t)line_range - 1; }
@@ -96,7 +95,7 @@ public:
             include_directories.clear();
             file_names.clear();
         }
-        bool GetFile(uint32_t file_idx, std::string& file, std::string& dir) const;
+        bool GetFile(uint32_t file_idx, const char *comp_dir, lldb_private::FileSpec &file) const;
 
     };
 
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDebugMacro.cpp b/source/Plugins/SymbolFile/DWARF/DWARFDebugMacro.cpp
new file mode 100644
index 0000000000000..75c812e6e79df
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDebugMacro.cpp
@@ -0,0 +1,128 @@
+//===-- DWARFDebugMacro.cpp -------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "DWARFDebugMacro.h"
+#include "SymbolFileDWARF.h"
+
+#include "lldb/Symbol/DebugMacros.h"
+
+#include "DWARFDataExtractor.h"
+
+using namespace lldb_private;
+
+DWARFDebugMacroHeader
+DWARFDebugMacroHeader::ParseHeader(const DWARFDataExtractor &debug_macro_data, lldb::offset_t *offset)
+{
+    DWARFDebugMacroHeader header;
+
+    // Skip over the version field in header.
+    header.m_version = debug_macro_data.GetU16(offset);
+
+    uint8_t flags = debug_macro_data.GetU8(offset);
+    header.m_offset_is_64_bit = flags & OFFSET_SIZE_MASK ? true : false;
+
+    if (flags & DEBUG_LINE_OFFSET_MASK)
+    {
+        if (header.m_offset_is_64_bit)
+            header.m_debug_line_offset = debug_macro_data.GetU64(offset);
+        else
+            header.m_debug_line_offset = debug_macro_data.GetU32(offset);
+    }
+
+    // Skip over the operands table if it is present.
+    if (flags & OPCODE_OPERANDS_TABLE_MASK)
+        SkipOperandTable(debug_macro_data, offset);
+
+    return header;
+}
+
+void
+DWARFDebugMacroHeader::SkipOperandTable(const DWARFDataExtractor &debug_macro_data, lldb::offset_t *offset)
+{
+    uint8_t entry_count = debug_macro_data.GetU8(offset);
+    for (uint8_t i = 0; i < entry_count; i++)
+    {
+        // Skip over the opcode number.
+        debug_macro_data.GetU8(offset);
+
+        uint64_t operand_count = debug_macro_data.GetULEB128(offset);
+
+        for (uint64_t j = 0; j < operand_count; j++)
+        {
+            // Skip over the operand form
+            debug_macro_data.GetU8(offset);
+        }
+    }
+}
+
+void
+DWARFDebugMacroEntry::ReadMacroEntries(const DWARFDataExtractor &debug_macro_data,
+                                       const DWARFDataExtractor &debug_str_data,
+                                       const bool offset_is_64_bit,
+                                       lldb::offset_t *offset,
+                                       SymbolFileDWARF *sym_file_dwarf,
+                                       DebugMacrosSP &debug_macros_sp)
+{
+    llvm::dwarf::MacroEntryType type = static_cast<llvm::dwarf::MacroEntryType>(debug_macro_data.GetU8(offset));
+    while (type != 0)
+    {
+        lldb::offset_t new_offset = 0, str_offset = 0;
+        uint32_t line = 0;
+        const char *macro_str = nullptr;
+        uint32_t debug_line_file_idx = 0;
+
+        switch (type)
+        {
+            case DW_MACRO_define:
+            case DW_MACRO_undef:
+                line = debug_macro_data.GetULEB128(offset);
+                macro_str = debug_macro_data.GetCStr(offset);
+                if (type == DW_MACRO_define)
+                    debug_macros_sp->AddMacroEntry(DebugMacroEntry::CreateDefineEntry(line, macro_str));
+                else
+                    debug_macros_sp->AddMacroEntry(DebugMacroEntry::CreateUndefEntry(line, macro_str));
+                break;
+            case DW_MACRO_define_indirect:
+            case DW_MACRO_undef_indirect:
+                line = debug_macro_data.GetULEB128(offset);
+                if (offset_is_64_bit)
+                    str_offset = debug_macro_data.GetU64(offset);
+                else
+                    str_offset = debug_macro_data.GetU32(offset);
+                macro_str = debug_str_data.GetCStr(&str_offset);
+                if (type == DW_MACRO_define_indirect)
+                    debug_macros_sp->AddMacroEntry(DebugMacroEntry::CreateDefineEntry(line, macro_str));
+                else
+                    debug_macros_sp->AddMacroEntry(DebugMacroEntry::CreateUndefEntry(line, macro_str));
+                break;
+            case DW_MACRO_start_file:
+                line = debug_macro_data.GetULEB128(offset);
+                debug_line_file_idx = debug_macro_data.GetULEB128(offset);
+                debug_macros_sp->AddMacroEntry(DebugMacroEntry::CreateStartFileEntry(line, debug_line_file_idx));
+                break;
+            case DW_MACRO_end_file:
+                // This operation has no operands.
+                debug_macros_sp->AddMacroEntry(DebugMacroEntry::CreateEndFileEntry());
+                break;
+            case DW_MACRO_transparent_include:
+                if (offset_is_64_bit)
+                    new_offset = debug_macro_data.GetU64(offset);
+                else
+                    new_offset = debug_macro_data.GetU32(offset);
+                debug_macros_sp->AddMacroEntry(
+                    DebugMacroEntry::CreateIndirectEntry(sym_file_dwarf->ParseDebugMacros(&new_offset)));
+                break;
+            default:
+                // TODO: Add support for other standard operations.
+                // TODO: Provide mechanism to hook handling of non-standard/extension operands.
+                return;
+        }
+        type = static_cast<llvm::dwarf::MacroEntryType>(debug_macro_data.GetU8(offset));
+    }
+}
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDebugMacro.h b/source/Plugins/SymbolFile/DWARF/DWARFDebugMacro.h
new file mode 100644
index 0000000000000..c60b9749b005e
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDebugMacro.h
@@ -0,0 +1,68 @@
+//===-- DWARFDebugMacro.h ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SymbolFileDWARF_DWARFDebugMacro_h_
+#define SymbolFileDWARF_DWARFDebugMacro_h_
+
+#include <map>
+
+#include "lldb/lldb-types.h"
+#include "lldb/Core/dwarf.h"
+#include "lldb/Symbol/DebugMacros.h"
+
+namespace lldb_private
+{
+
+class DWARFDataExtractor;
+
+} // namespace lldb_private
+
+class SymbolFileDWARF;
+
+class DWARFDebugMacroHeader
+{
+public:
+    enum HeaderFlagMask
+    {
+        OFFSET_SIZE_MASK = 0x1,
+        DEBUG_LINE_OFFSET_MASK = 0x2,
+        OPCODE_OPERANDS_TABLE_MASK = 0x4
+    };
+
+    static DWARFDebugMacroHeader
+    ParseHeader(const lldb_private::DWARFDataExtractor &debug_macro_data, lldb::offset_t *offset);
+
+    bool
+    OffsetIs64Bit() const
+    {
+        return m_offset_is_64_bit;
+    }
+
+private:
+    static void
+    SkipOperandTable(const lldb_private::DWARFDataExtractor &debug_macro_data, lldb::offset_t *offset);
+
+    uint16_t m_version;
+    bool m_offset_is_64_bit;
+    uint64_t m_debug_line_offset;
+};
+
+class DWARFDebugMacroEntry
+{
+public:
+    static void
+    ReadMacroEntries(const lldb_private::DWARFDataExtractor &debug_macro_data,
+                     const lldb_private::DWARFDataExtractor &debug_str_data,
+                     const bool offset_is_64_bit,
+                     lldb::offset_t *sect_offset,
+                     SymbolFileDWARF *sym_file_dwarf,
+                     lldb_private::DebugMacrosSP &debug_macros_sp);
+};
+
+#endif // SymbolFileDWARF_DWARFDebugMacro_h_
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDebugPubnames.cpp b/source/Plugins/SymbolFile/DWARF/DWARFDebugPubnames.cpp
index 8469b78d0dd56..547bd0cd1a5a2 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFDebugPubnames.cpp
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDebugPubnames.cpp
@@ -77,9 +77,6 @@ DWARFDebugPubnames::GeneratePubnames(SymbolFileDWARF* dwarf2Data)
     DWARFDebugInfo* debug_info = dwarf2Data->DebugInfo();
     if (debug_info)
     {
-
-        const DWARFDataExtractor* debug_str = &dwarf2Data->get_debug_str_data();
-
         uint32_t cu_idx = 0;
         const uint32_t num_compile_units = dwarf2Data->GetNumCompileUnits();
         for (cu_idx = 0; cu_idx < num_compile_units; ++cu_idx)
@@ -87,7 +84,9 @@ DWARFDebugPubnames::GeneratePubnames(SymbolFileDWARF* dwarf2Data)
 
             DWARFCompileUnit* cu = debug_info->GetCompileUnitAtIndex(cu_idx);
 
-            const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (cu->GetAddressByteSize(), cu->IsDWARF64());
+            DWARFFormValue::FixedFormSizes fixed_form_sizes =
+                DWARFFormValue::GetFixedFormSizesForAddressSize (cu->GetAddressByteSize(),
+                                                                 cu->IsDWARF64());
 
             bool clear_dies = cu->ExtractDIEsIfNeeded (false) > 1;
 
@@ -101,17 +100,17 @@ DWARFDebugPubnames::GeneratePubnames(SymbolFileDWARF* dwarf2Data)
             size_t die_idx;
             for (die_idx = 0; die_idx < die_count; ++die_idx)
             {
-                const DWARFDebugInfoEntry *die = dies.GetDIEPtrAtIndex(die_idx);
-                DWARFDebugInfoEntry::Attributes attributes;
+                DWARFDIE die = dies.GetDIEAtIndex(die_idx);
+                DWARFAttributes attributes;
                 const char *name = NULL;
                 const char *mangled = NULL;
                 bool add_die = false;
-                const size_t num_attributes = die->GetAttributes(dwarf2Data, cu, fixed_form_sizes, attributes);
+                const size_t num_attributes = die.GetDIE()->GetAttributes(die.GetCU(), fixed_form_sizes, attributes);
                 if (num_attributes > 0)
                 {
                     uint32_t i;
 
-                    dw_tag_t tag = die->Tag();
+                    dw_tag_t tag = die.Tag();
                     
                     for (i=0; i<num_attributes; ++i)
                     {
@@ -120,14 +119,14 @@ DWARFDebugPubnames::GeneratePubnames(SymbolFileDWARF* dwarf2Data)
                         switch (attr)
                         {
                         case DW_AT_name:
-                            if (attributes.ExtractFormValueAtIndex(dwarf2Data, i, form_value))
-                                name = form_value.AsCString(debug_str);
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                                name = form_value.AsCString();
                             break;
 
                         case DW_AT_MIPS_linkage_name:
                         case DW_AT_linkage_name:
-                            if (attributes.ExtractFormValueAtIndex(dwarf2Data, i, form_value))
-                                mangled = form_value.AsCString(debug_str);
+                            if (attributes.ExtractFormValueAtIndex(i, form_value))
+                                mangled = form_value.AsCString();
                             break;
 
                         case DW_AT_low_pc:
@@ -140,10 +139,10 @@ DWARFDebugPubnames::GeneratePubnames(SymbolFileDWARF* dwarf2Data)
                         case DW_AT_location:
                             if (tag == DW_TAG_variable)
                             {
-                                const DWARFDebugInfoEntry* parent_die = die->GetParent();
-                                while ( parent_die != NULL )
+                                DWARFDIE parent_die = die.GetParent();
+                                while ( parent_die )
                                 {
-                                    switch (parent_die->Tag())
+                                    switch (parent_die.Tag())
                                     {
                                     case DW_TAG_subprogram:
                                     case DW_TAG_lexical_block:
@@ -153,31 +152,16 @@ DWARFDebugPubnames::GeneratePubnames(SymbolFileDWARF* dwarf2Data)
                                         // if the location describes a hard coded address, but we don't want the performance
                                         // penalty of that right now.
                                         add_die = false;
-//                                      if (attributes.ExtractFormValueAtIndex(dwarf2Data, i, form_value))
-//                                      {
-//                                          // If we have valid block data, then we have location expression bytes
-//                                          // that are fixed (not a location list).
-//                                          const uint8_t *block_data = form_value.BlockData();
-//                                          if (block_data)
-//                                          {
-//                                              uint32_t block_length = form_value.Unsigned();
-//                                              if (block_length == 1 + attributes.CompileUnitAtIndex(i)->GetAddressByteSize())
-//                                              {
-//                                                  if (block_data[0] == DW_OP_addr)
-//                                                      add_die = true;
-//                                              }
-//                                          }
-//                                      }
-                                        parent_die = NULL;  // Terminate the while loop.
+                                        parent_die.Clear();  // Terminate the while loop.
                                         break;
 
                                     case DW_TAG_compile_unit:
                                         add_die = true;
-                                        parent_die = NULL;  // Terminate the while loop.
+                                        parent_die.Clear();  // Terminate the while loop.
                                         break;
 
                                     default:
-                                        parent_die = parent_die->GetParent();   // Keep going in the while loop.
+                                        parent_die = parent_die.GetParent();   // Keep going in the while loop.
                                         break;
                                     }
                                 }
@@ -189,7 +173,7 @@ DWARFDebugPubnames::GeneratePubnames(SymbolFileDWARF* dwarf2Data)
 
                 if (add_die && (name || mangled))
                 {
-                    pubnames_set.AddDescriptor(die->GetOffset() - cu_offset, mangled ? mangled : name);
+                    pubnames_set.AddDescriptor(die.GetCompileUnitRelativeOffset(), mangled ? mangled : name);
                 }
             }
 
@@ -231,13 +215,11 @@ DWARFDebugPubnames::GeneratePubBaseTypes(SymbolFileDWARF* dwarf2Data)
             size_t die_idx;
             for (die_idx = 0; die_idx < die_count; ++die_idx)
             {
-                const DWARFDebugInfoEntry *die = dies.GetDIEPtrAtIndex(die_idx);
-                const char *name = die->GetAttributeValueAsString(dwarf2Data, cu, DW_AT_name, NULL);
+                DWARFDIE die = dies.GetDIEAtIndex (die_idx);
+                const char *name = die.GetName();
 
                 if (name)
-                {
-                    pubnames_set.AddDescriptor(die->GetOffset() - cu_offset, name);
-                }
+                    pubnames_set.AddDescriptor(die.GetCompileUnitRelativeOffset(), name);
             }
 
             if (pubnames_set.NumDescriptors() > 0)
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.cpp b/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.cpp
index 0953554ffd7d0..fc2831f224380 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.cpp
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.cpp
@@ -27,7 +27,7 @@ DWARFDebugRanges::~DWARFDebugRanges()
 void
 DWARFDebugRanges::Extract(SymbolFileDWARF* dwarf2Data)
 {
-    RangeList range_list;
+    DWARFRangeList range_list;
     lldb::offset_t offset = 0;
     dw_offset_t debug_ranges_offset = offset;
     while (Extract(dwarf2Data, &offset, range_list))
@@ -38,52 +38,8 @@ DWARFDebugRanges::Extract(SymbolFileDWARF* dwarf2Data)
     }
 }
 
-//void
-//DWARFDebugRanges::RangeList::AddOffset(dw_addr_t offset)
-//{
-//    if (!ranges.empty())
-//    {
-//        Range::iterator pos = ranges.begin();
-//        Range::iterator end_pos = ranges.end();
-//        for (pos = ranges.begin(); pos != end_pos; ++pos)
-//        {
-//            // assert for unsigned overflows
-//            assert (~pos->begin_offset >= offset);
-//            assert (~pos->end_offset >= offset);
-//            pos->begin_offset += offset;
-//            pos->end_offset += offset;
-//        }
-//    }
-//}
-//
-//void
-//DWARFDebugRanges::RangeList::SubtractOffset(dw_addr_t offset)
-//{
-//    if (!ranges.empty())
-//    {
-//        Range::iterator pos = ranges.begin();
-//        Range::iterator end_pos = ranges.end();
-//        for (pos = ranges.begin(); pos != end_pos; ++pos)
-//        {
-//            assert (pos->begin_offset >= offset);
-//            assert (pos->end_offset >= offset);
-//            pos->begin_offset -= offset;
-//            pos->end_offset -= offset;
-//        }
-//    }
-//}
-//
-//
-//const DWARFDebugRanges::Range*
-//DWARFDebugRanges::RangeList::RangeAtIndex(size_t i) const
-//{
-//    if (i < ranges.size())
-//        return &ranges[i];
-//    return NULL;
-//}
-
 bool
-DWARFDebugRanges::Extract(SymbolFileDWARF* dwarf2Data, lldb::offset_t *offset_ptr, RangeList &range_list)
+DWARFDebugRanges::Extract(SymbolFileDWARF* dwarf2Data, lldb::offset_t *offset_ptr, DWARFRangeList &range_list)
 {
     range_list.Clear();
 
@@ -118,13 +74,13 @@ DWARFDebugRanges::Extract(SymbolFileDWARF* dwarf2Data, lldb::offset_t *offset_pt
             break;
 
         default:
-            assert(!"DWARFDebugRanges::RangeList::Extract() unsupported address size.");
+            assert(!"DWARFRangeList::Extract() unsupported address size.");
             break;
         }
 
         // Filter out empty ranges
         if (begin < end)
-            range_list.Append(Range(begin, end - begin));
+            range_list.Append(DWARFRangeList::Entry(begin, end - begin));
     }
 
     // Make sure we consumed at least something
@@ -178,7 +134,7 @@ DWARFDebugRanges::Dump(Stream &s, const DWARFDataExtractor& debug_ranges_data, l
 }
 
 bool
-DWARFDebugRanges::FindRanges(dw_offset_t debug_ranges_offset, RangeList& range_list) const
+DWARFDebugRanges::FindRanges(dw_offset_t debug_ranges_offset, DWARFRangeList& range_list) const
 {
     range_map_const_iterator pos = m_range_map.find(debug_ranges_offset);
     if (pos != m_range_map.end())
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.h b/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.h
index 50af91d410094..3ff4ea3502c99 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.h
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.h
@@ -11,34 +11,30 @@
 #define SymbolFileDWARF_DWARFDebugRanges_h_
 
 #include "SymbolFileDWARF.h"
+#include "DWARFDIE.h"
 
 #include <map>
-#include <vector>
-
-#include "lldb/Core/RangeMap.h"
 
 class DWARFDebugRanges
 {
 public:
-    typedef lldb_private::RangeArray<dw_addr_t, dw_addr_t, 2> RangeList;
-    typedef RangeList::Entry Range;
 
     DWARFDebugRanges();
     ~DWARFDebugRanges();
     void Extract(SymbolFileDWARF* dwarf2Data);
     static void Dump(lldb_private::Stream &s, const lldb_private::DWARFDataExtractor& debug_ranges_data, lldb::offset_t *offset_ptr, dw_addr_t cu_base_addr);
-    bool FindRanges(dw_offset_t debug_ranges_offset, DWARFDebugRanges::RangeList& range_list) const;
+    bool FindRanges(dw_offset_t debug_ranges_offset, DWARFRangeList& range_list) const;
 
 protected:
 
     bool
     Extract (SymbolFileDWARF* dwarf2Data, 
              lldb::offset_t *offset_ptr, 
-             RangeList &range_list);
+             DWARFRangeList &range_list);
 
-    typedef std::map<dw_offset_t, RangeList>    range_map;
-    typedef range_map::iterator                 range_map_iterator;
-    typedef range_map::const_iterator           range_map_const_iterator;
+    typedef std::map<dw_offset_t, DWARFRangeList>   range_map;
+    typedef range_map::iterator                     range_map_iterator;
+    typedef range_map::const_iterator               range_map_const_iterator;
     range_map m_range_map;
 };
 
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDeclContext.h b/source/Plugins/SymbolFile/DWARF/DWARFDeclContext.h
index 3a99d2b338786..4c29447b47bb8 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFDeclContext.h
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDeclContext.h
@@ -108,6 +108,13 @@ public:
         return lldb_private::ConstString (GetQualifiedName ());
     }
 
+    void
+    Clear()
+    {
+        m_entries.clear();
+        m_qualified_name.clear();
+    }
+
 protected:
     typedef std::vector<Entry> collection;
     collection m_entries;
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFFormValue.cpp b/source/Plugins/SymbolFile/DWARF/DWARFFormValue.cpp
index c733832e4f4df..a0ed9731a565d 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFFormValue.cpp
+++ b/source/Plugins/SymbolFile/DWARF/DWARFFormValue.cpp
@@ -136,21 +136,21 @@ g_form_sizes_addr8_dwarf64[] =
     8, // 0x20 DW_FORM_ref_sig8
 };
 
-const uint8_t * 
+DWARFFormValue::FixedFormSizes
 DWARFFormValue::GetFixedFormSizesForAddressSize (uint8_t addr_size, bool is_dwarf64)
 {
     if (!is_dwarf64) {
         switch (addr_size)
         {
-        case 4: return g_form_sizes_addr4;
-        case 8: return g_form_sizes_addr8;
+        case 4: return FixedFormSizes(g_form_sizes_addr4, sizeof(g_form_sizes_addr4));
+        case 8: return FixedFormSizes(g_form_sizes_addr8, sizeof(g_form_sizes_addr8));
         }
     } else {
         if (addr_size == 8)
-            return g_form_sizes_addr8_dwarf64;
+            return FixedFormSizes(g_form_sizes_addr8_dwarf64, sizeof(g_form_sizes_addr8_dwarf64));
         // is_dwarf64 && addr_size == 4 : no provider does this.
     }
-    return NULL;
+    return FixedFormSizes();
 }
 
 DWARFFormValue::DWARFFormValue() :
@@ -187,11 +187,7 @@ DWARFFormValue::ExtractValue(const DWARFDataExtractor& data, lldb::offset_t* off
         case DW_FORM_data2:     m_value.value.uval = data.GetU16(offset_ptr);                           break;
         case DW_FORM_data4:     m_value.value.uval = data.GetU32(offset_ptr);                           break;
         case DW_FORM_data8:     m_value.value.uval = data.GetU64(offset_ptr);                           break;
-        case DW_FORM_string:    m_value.value.cstr = data.GetCStr(offset_ptr);
-                                // Set the string value to also be the data for inlined cstr form values only
-                                // so we can tell the difference between DW_FORM_string and DW_FORM_strp form
-                                // values;
-                                m_value.data = (const uint8_t*)m_value.value.cstr;                      break;
+        case DW_FORM_string:    m_value.value.cstr = data.GetCStr(offset_ptr);                          break;
         case DW_FORM_exprloc:
         case DW_FORM_block:     m_value.value.uval = data.GetULEB128(offset_ptr); is_block = true;      break;
         case DW_FORM_block1:    m_value.value.uval = data.GetU8(offset_ptr); is_block = true;           break;
@@ -219,10 +215,12 @@ DWARFFormValue::ExtractValue(const DWARFDataExtractor& data, lldb::offset_t* off
             indirect = true;
             break;
 
-        case DW_FORM_sec_offset:    assert(m_cu);
-                                    m_value.value.uval = data.GetMaxU64(offset_ptr, DWARFCompileUnit::IsDWARF64(m_cu) ? 8 : 4);  break;
-        case DW_FORM_flag_present:  m_value.value.uval = 1;                                             break;
-        case DW_FORM_ref_sig8:      m_value.value.uval = data.GetU64(offset_ptr);                       break;
+        case DW_FORM_sec_offset:     assert(m_cu);
+                                     m_value.value.uval = data.GetMaxU64(offset_ptr, DWARFCompileUnit::IsDWARF64(m_cu) ? 8 : 4); break;
+        case DW_FORM_flag_present:   m_value.value.uval = 1;                                            break;
+        case DW_FORM_ref_sig8:       m_value.value.uval = data.GetU64(offset_ptr);                      break;
+        case DW_FORM_GNU_str_index:  m_value.value.uval = data.GetULEB128(offset_ptr);                  break;
+        case DW_FORM_GNU_addr_index: m_value.value.uval = data.GetULEB128(offset_ptr);                  break;
         default:
             return false;
             break;
@@ -322,6 +320,8 @@ DWARFFormValue::SkipValue(dw_form_t form, const DWARFDataExtractor& debug_info_d
     case DW_FORM_sdata:
     case DW_FORM_udata:
     case DW_FORM_ref_udata:
+    case DW_FORM_GNU_addr_index:
+    case DW_FORM_GNU_str_index:
         debug_info_data.Skip_LEB128(offset_ptr);
         return true;
 
@@ -342,7 +342,7 @@ DWARFFormValue::SkipValue(dw_form_t form, const DWARFDataExtractor& debug_info_d
 
 
 void
-DWARFFormValue::Dump(Stream &s, const DWARFDataExtractor* debug_str_data) const
+DWARFFormValue::Dump(Stream &s) const
 {
     uint64_t uvalue = Unsigned();
     bool cu_relative_offset = false;
@@ -353,13 +353,13 @@ DWARFFormValue::Dump(Stream &s, const DWARFDataExtractor* debug_str_data) const
     {
     case DW_FORM_addr:      s.Address(uvalue, sizeof (uint64_t)); break;
     case DW_FORM_flag:
-    case DW_FORM_data1:     s.PutHex8(uvalue);     break;
+    case DW_FORM_data1:     s.PutHex8(uvalue);         break;
     case DW_FORM_data2:     s.PutHex16(uvalue);        break;
     case DW_FORM_sec_offset:
     case DW_FORM_data4:     s.PutHex32(uvalue);        break;
     case DW_FORM_ref_sig8:
     case DW_FORM_data8:     s.PutHex64(uvalue);        break;
-    case DW_FORM_string:    s.QuotedCString(AsCString(NULL));          break;
+    case DW_FORM_string:    s.QuotedCString(AsCString()); break;
     case DW_FORM_exprloc:
     case DW_FORM_block:
     case DW_FORM_block1:
@@ -395,18 +395,18 @@ DWARFFormValue::Dump(Stream &s, const DWARFDataExtractor* debug_str_data) const
     case DW_FORM_sdata:     s.PutSLEB128(uvalue); break;
     case DW_FORM_udata:     s.PutULEB128(uvalue); break;
     case DW_FORM_strp:
-        if (debug_str_data)
         {
-            if (verbose)
-                s.Printf(" .debug_str[0x%8.8x] = ", (uint32_t)uvalue);
-
-            const char* dbg_str = AsCString(debug_str_data);
+            const char* dbg_str = AsCString();
             if (dbg_str)
+            {
+                if (verbose)
+                    s.Printf(" .debug_str[0x%8.8x] = ", (uint32_t)uvalue);
                 s.QuotedCString(dbg_str);
-        }
-        else
-        {
-            s.PutHex32(uvalue);
+            }
+            else
+            {
+                s.PutHex32(uvalue);
+            }
         }
         break;
 
@@ -444,13 +444,52 @@ DWARFFormValue::Dump(Stream &s, const DWARFDataExtractor* debug_str_data) const
 }
 
 const char*
-DWARFFormValue::AsCString(const DWARFDataExtractor* debug_str_data_ptr) const
+DWARFFormValue::AsCString() const
 {
-    if (IsInlinedCStr())
+    SymbolFileDWARF* symbol_file = m_cu->GetSymbolFileDWARF();
+
+    if (m_form == DW_FORM_string)
+    {
         return m_value.value.cstr;
-    else if (debug_str_data_ptr)
-        return debug_str_data_ptr->PeekCStr(m_value.value.uval);
-    return NULL;
+    }
+    else if (m_form == DW_FORM_strp)
+    {
+        if (!symbol_file)
+            return nullptr;
+
+        return symbol_file->get_debug_str_data().PeekCStr(m_value.value.uval);
+    }
+    else if (m_form == DW_FORM_GNU_str_index)
+    {
+        if (!symbol_file)
+            return nullptr;
+
+        uint32_t index_size = m_cu->IsDWARF64() ? 8 : 4;
+        lldb::offset_t offset = m_value.value.uval * index_size;
+        dw_offset_t str_offset = symbol_file->get_debug_str_offsets_data().GetMaxU64(&offset, index_size);
+        return symbol_file->get_debug_str_data().PeekCStr(str_offset);
+    }
+    return nullptr;
+}
+
+dw_addr_t
+DWARFFormValue::Address() const
+{
+    SymbolFileDWARF* symbol_file = m_cu->GetSymbolFileDWARF();
+
+    if (m_form == DW_FORM_addr)
+        return Unsigned();
+
+    assert(m_cu);
+    assert(m_form == DW_FORM_GNU_addr_index);
+
+    if (!symbol_file)
+        return 0;
+
+    uint32_t index_size = m_cu->GetAddressByteSize();
+    dw_offset_t addr_base = m_cu->GetAddrBase();
+    lldb::offset_t offset = addr_base + m_value.value.uval * index_size;
+    return symbol_file->get_debug_addr_data().GetMaxU64(&offset, index_size);
 }
 
 uint64_t
@@ -500,9 +539,7 @@ DWARFFormValue::Reference (dw_offset_t base_offset) const
 const uint8_t*
 DWARFFormValue::BlockData() const
 {
-    if (!IsInlinedCStr())
-        return m_value.data;
-    return NULL;
+    return m_value.data;
 }
 
 
@@ -537,7 +574,8 @@ DWARFFormValue::IsDataForm(const dw_form_t form)
 }
 
 int
-DWARFFormValue::Compare (const DWARFFormValue& a_value, const DWARFFormValue& b_value, const DWARFDataExtractor* debug_str_data_ptr)
+DWARFFormValue::Compare (const DWARFFormValue& a_value,
+                         const DWARFFormValue& b_value)
 {
     dw_form_t a_form = a_value.Form();
     dw_form_t b_form = b_value.Form();
@@ -558,6 +596,7 @@ DWARFFormValue::Compare (const DWARFFormValue& a_value, const DWARFFormValue& b_
     case DW_FORM_sec_offset:
     case DW_FORM_flag_present:
     case DW_FORM_ref_sig8:
+    case DW_FORM_GNU_addr_index:
         {
             uint64_t a = a_value.Unsigned();
             uint64_t b = b_value.Unsigned();
@@ -581,9 +620,10 @@ DWARFFormValue::Compare (const DWARFFormValue& a_value, const DWARFFormValue& b_
 
     case DW_FORM_string:
     case DW_FORM_strp:
+    case DW_FORM_GNU_str_index:
         {
-            const char *a_string = a_value.AsCString(debug_str_data_ptr);
-            const char *b_string = b_value.AsCString(debug_str_data_ptr);
+            const char *a_string = a_value.AsCString();
+            const char *b_string = b_value.AsCString();
             if (a_string == b_string)
                 return 0;
             else if (a_string && b_string)
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFFormValue.h b/source/Plugins/SymbolFile/DWARF/DWARFFormValue.h
index 392df26a088e1..b10f4d3a0ac97 100644
--- a/source/Plugins/SymbolFile/DWARF/DWARFFormValue.h
+++ b/source/Plugins/SymbolFile/DWARF/DWARFFormValue.h
@@ -35,6 +35,34 @@ public:
         } value;
         const uint8_t* data;
     } ValueType;
+    
+    class FixedFormSizes
+    {
+    public:
+        FixedFormSizes() :
+            m_fix_sizes(nullptr), m_size(0)
+        {}
+
+        FixedFormSizes(const uint8_t* fix_sizes, size_t size) :
+            m_fix_sizes(fix_sizes), m_size(size)
+        {}
+
+        uint8_t
+        GetSize(uint32_t index) const
+        {
+            return index < m_size ? m_fix_sizes[index] : 0;
+        }
+
+        bool
+        Empty() const
+        {
+            return m_size == 0;
+        }
+
+    private:
+        const uint8_t* m_fix_sizes;
+        size_t         m_size;
+    };
 
     enum
     {
@@ -52,10 +80,9 @@ public:
     dw_form_t           Form()  const { return m_form; }
     void                SetForm(dw_form_t form) { m_form = form; }
     const ValueType&    Value() const { return m_value; }
-    void                Dump(lldb_private::Stream &s, const lldb_private::DWARFDataExtractor* debug_str_data) const;
+    void                Dump(lldb_private::Stream &s) const;
     bool                ExtractValue(const lldb_private::DWARFDataExtractor& data,
                                      lldb::offset_t* offset_ptr);
-    bool                IsInlinedCStr() const { return (m_value.data != NULL) && m_value.data == (const uint8_t*)m_value.value.cstr; }
     const uint8_t*      BlockData() const;
     uint64_t            Reference() const;
     uint64_t            Reference (dw_offset_t offset) const;
@@ -64,13 +91,16 @@ public:
     void                SetUnsigned(uint64_t uval) { m_value.value.uval = uval; }
     int64_t             Signed() const { return m_value.value.sval; }
     void                SetSigned(int64_t sval) { m_value.value.sval = sval; }
-    const char*         AsCString(const lldb_private::DWARFDataExtractor* debug_str_data_ptr) const;
+    const char*         AsCString() const;
+    dw_addr_t           Address() const;
+    bool                IsValid() const { return m_form != 0; }
     bool                SkipValue(const lldb_private::DWARFDataExtractor& debug_info_data, lldb::offset_t *offset_ptr) const;
     static bool         SkipValue(const dw_form_t form, const lldb_private::DWARFDataExtractor& debug_info_data, lldb::offset_t *offset_ptr, const DWARFCompileUnit* cu);
     static bool         IsBlockForm(const dw_form_t form);
     static bool         IsDataForm(const dw_form_t form);
-    static const uint8_t * GetFixedFormSizesForAddressSize (uint8_t addr_size, bool is_dwarf64);
-    static int          Compare (const DWARFFormValue& a, const DWARFFormValue& b, const lldb_private::DWARFDataExtractor* debug_str_data_ptr);
+    static FixedFormSizes GetFixedFormSizesForAddressSize (uint8_t addr_size, bool is_dwarf64);
+    static int          Compare (const DWARFFormValue& a, 
+                                 const DWARFFormValue& b);
 protected:
     const DWARFCompileUnit* m_cu; // Compile unit for this form
     dw_form_t   m_form;     // Form for this value
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFLocationDescription.cpp b/source/Plugins/SymbolFile/DWARF/DWARFLocationDescription.cpp
deleted file mode 100644
index d79ae79822b08..0000000000000
--- a/source/Plugins/SymbolFile/DWARF/DWARFLocationDescription.cpp
+++ /dev/null
@@ -1,172 +0,0 @@
-//===-- DWARFLocationDescription.cpp ----------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "DWARFLocationDescription.h"
-#include "DWARFDefines.h"
-#include "lldb/lldb-private.h"
-#include "lldb/Core/Stream.h"
-
-
-using namespace lldb_private;
-
-static int print_dwarf_exp_op (Stream &s, const DWARFDataExtractor& data, lldb::offset_t *offset_ptr, int address_size, int dwarf_ref_size);
-
-int
-print_dwarf_expression (Stream &s,
-                        const DWARFDataExtractor& data,
-                        int address_size,
-                        int dwarf_ref_size,
-                        bool location_expression)
-{
-    int op_count = 0;
-    lldb::offset_t offset = 0;
-    while (data.ValidOffset(offset))
-    {
-        if (location_expression && op_count > 0)
-        {
-            //  err (baton, "Dwarf location expressions may only have one operand!");
-            return 1;
-        }
-        if (op_count > 0)
-        {
-            s.PutCString(", ");
-        }
-        if (print_dwarf_exp_op (s, data, &offset, address_size, dwarf_ref_size) == 1)
-            return 1;
-        op_count++;
-    }
-
-    return 0;
-}
-
-static int
-print_dwarf_exp_op (Stream &s,
-                    const DWARFDataExtractor& data,
-                    lldb::offset_t *offset_ptr,
-                    int address_size,
-                    int dwarf_ref_size)
-{
-    uint8_t opcode = data.GetU8(offset_ptr);
-    DRC_class opcode_class;
-    uint64_t  uint;
-    int64_t   sint;
-
-    int size;
-
-    opcode_class = DW_OP_value_to_class (opcode) & (~DRC_DWARFv3);
-
-    s.Printf("%s ", DW_OP_value_to_name (opcode));
-
-    /* Does this take zero parameters?  If so we can shortcut this function.  */
-    if (opcode_class == DRC_ZEROOPERANDS)
-        return 0;
-
-    if (opcode_class == DRC_TWOOPERANDS && opcode == DW_OP_bregx)
-    {
-        uint = data.GetULEB128(offset_ptr);
-        sint = data.GetSLEB128(offset_ptr);
-        s.Printf("%" PRIu64 " %" PRIi64, uint, sint);
-        return 0;
-    }
-    if (opcode_class != DRC_ONEOPERAND)
-    {
-        s.Printf("UNKNOWN OP %u", opcode);
-        return 1;
-    }
-
-    switch (opcode)
-    {
-        case DW_OP_addr:    size = address_size;    break;
-        case DW_OP_const1u: size = 1;               break;
-        case DW_OP_const1s: size = -1;              break;
-        case DW_OP_const2u: size = 2;               break;
-        case DW_OP_const2s: size = -2;              break;
-        case DW_OP_const4u: size = 4;               break;
-        case DW_OP_const4s: size = -4;              break;
-        case DW_OP_const8u: size = 8;               break;
-        case DW_OP_const8s: size = -8;              break;
-        case DW_OP_constu:  size = 128;             break;
-        case DW_OP_consts:  size = -128;            break;
-        case DW_OP_fbreg:   size = -128;            break;
-        case DW_OP_breg0:
-        case DW_OP_breg1:
-        case DW_OP_breg2:
-        case DW_OP_breg3:
-        case DW_OP_breg4:
-        case DW_OP_breg5:
-        case DW_OP_breg6:
-        case DW_OP_breg7:
-        case DW_OP_breg8:
-        case DW_OP_breg9:
-        case DW_OP_breg10:
-        case DW_OP_breg11:
-        case DW_OP_breg12:
-        case DW_OP_breg13:
-        case DW_OP_breg14:
-        case DW_OP_breg15:
-        case DW_OP_breg16:
-        case DW_OP_breg17:
-        case DW_OP_breg18:
-        case DW_OP_breg19:
-        case DW_OP_breg20:
-        case DW_OP_breg21:
-        case DW_OP_breg22:
-        case DW_OP_breg23:
-        case DW_OP_breg24:
-        case DW_OP_breg25:
-        case DW_OP_breg26:
-        case DW_OP_breg27:
-        case DW_OP_breg28:
-        case DW_OP_breg29:
-        case DW_OP_breg30:
-        case DW_OP_breg31:
-            size = -128; break;
-        case DW_OP_pick:
-            size = 1;       break;
-        case DW_OP_deref_size:
-            size = 1;       break;
-        case DW_OP_xderef_size:
-            size = 1;       break;
-        case DW_OP_plus_uconst:
-            size = 128;     break;
-        case DW_OP_skip:
-            size = -2;      break;
-        case DW_OP_bra:
-            size = -2;      break;
-        case DW_OP_call2:
-            size = 2;       break;
-        case DW_OP_call4:
-            size = 4;       break;
-        case DW_OP_call_ref:
-            size = dwarf_ref_size;  break;
-        case DW_OP_piece:
-            size = 128; break;
-        case DW_OP_regx:
-            size = 128; break;
-        default:
-            s.Printf("UNKNOWN ONE-OPERAND OPCODE, #%u", opcode);
-            return 1;
-    }
-
-    switch (size)
-    {
-    case -1:    sint = (int8_t)     data.GetU8(offset_ptr);     s.Printf("%+" PRIi64, sint); break;
-    case -2:    sint = (int16_t)    data.GetU16(offset_ptr);    s.Printf("%+" PRIi64, sint); break;
-    case -4:    sint = (int32_t)    data.GetU32(offset_ptr);    s.Printf("%+" PRIi64, sint); break;
-    case -8:    sint = (int64_t)    data.GetU64(offset_ptr);    s.Printf("%+" PRIi64, sint); break;
-    case -128:  sint = data.GetSLEB128(offset_ptr);             s.Printf("%+" PRIi64, sint); break;
-    case 1:     uint = data.GetU8(offset_ptr);                  s.Printf("0x%2.2" PRIx64, uint); break;
-    case 2:     uint = data.GetU16(offset_ptr);                 s.Printf("0x%4.4" PRIx64, uint); break;
-    case 4:     uint = data.GetU32(offset_ptr);                 s.Printf("0x%8.8" PRIx64, uint); break;
-    case 8:     uint = data.GetU64(offset_ptr);                 s.Printf("0x%16.16" PRIx64, uint); break;
-    case 128:   uint = data.GetULEB128(offset_ptr);             s.Printf("0x%" PRIx64, uint); break;
-    }
-
-    return 0;
-}
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFLocationDescription.h b/source/Plugins/SymbolFile/DWARF/DWARFLocationDescription.h
deleted file mode 100644
index 69cc0c15969c4..0000000000000
--- a/source/Plugins/SymbolFile/DWARF/DWARFLocationDescription.h
+++ /dev/null
@@ -1,24 +0,0 @@
-//===-- DWARFLocationDescription.h ------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef SymbolFileDWARF_DWARFLocationDescription_h_
-#define SymbolFileDWARF_DWARFLocationDescription_h_
-
-#include "SymbolFileDWARF.h"
-
-int
-print_dwarf_expression (lldb_private::Stream &s,
-                        const lldb_private::DWARFDataExtractor& data,
-                        int address_size,
-                        int dwarf_ref_size,
-                        bool location_expression);
-
-
-
-#endif  // SymbolFileDWARF_DWARFLocationDescription_h_
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFLocationList.cpp b/source/Plugins/SymbolFile/DWARF/DWARFLocationList.cpp
deleted file mode 100644
index 26768f060ef12..0000000000000
--- a/source/Plugins/SymbolFile/DWARF/DWARFLocationList.cpp
+++ /dev/null
@@ -1,94 +0,0 @@
-//===-- DWARFLocationList.cpp -----------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "DWARFLocationList.h"
-
-#include "lldb/Core/Stream.h"
-
-#include "DWARFCompileUnit.h"
-#include "DWARFDebugInfo.h"
-#include "DWARFLocationDescription.h"
-
-using namespace lldb_private;
-
-dw_offset_t
-DWARFLocationList::Dump(Stream &s, const DWARFCompileUnit* cu, const DWARFDataExtractor& debug_loc_data, lldb::offset_t offset)
-{
-    uint64_t start_addr, end_addr;
-    uint32_t addr_size = DWARFCompileUnit::GetAddressByteSize(cu);
-    s.SetAddressByteSize(DWARFCompileUnit::GetAddressByteSize(cu));
-    dw_addr_t base_addr = cu ? cu->GetBaseAddress() : 0;
-    while (debug_loc_data.ValidOffset(offset))
-    {
-        start_addr = debug_loc_data.GetMaxU64(&offset,addr_size);
-        end_addr = debug_loc_data.GetMaxU64(&offset,addr_size);
-
-        if (start_addr == 0 && end_addr == 0)
-            break;
-
-        s.PutCString("\n            ");
-        s.Indent();
-        if (cu)
-            s.AddressRange (start_addr + base_addr, 
-                            end_addr + base_addr, 
-                            cu->GetAddressByteSize(), 
-                            NULL,
-                            ": ");
-        uint32_t loc_length = debug_loc_data.GetU16(&offset);
-
-        DWARFDataExtractor locationData(debug_loc_data, offset, loc_length);
-    //  if ( dump_flags & DWARFDebugInfo::eDumpFlag_Verbose ) *ostrm_ptr << " ( ";
-        print_dwarf_expression (s, locationData, addr_size, 4, false);
-        offset += loc_length;
-    }
-
-    return offset;
-}
-
-bool
-DWARFLocationList::Extract(const DWARFDataExtractor& debug_loc_data, lldb::offset_t* offset_ptr, DWARFDataExtractor& location_list_data)
-{
-    // Initialize with no data just in case we don't find anything
-    location_list_data.Clear();
-
-    size_t loc_list_length = Size(debug_loc_data, *offset_ptr);
-    if (loc_list_length > 0)
-    {
-        location_list_data.SetData(debug_loc_data, *offset_ptr, loc_list_length);
-        *offset_ptr += loc_list_length;
-        return true;
-    }
-
-    return false;
-}
-
-size_t
-DWARFLocationList::Size(const DWARFDataExtractor& debug_loc_data, lldb::offset_t offset)
-{
-    const dw_offset_t debug_loc_offset = offset;
-
-    while (debug_loc_data.ValidOffset(offset))
-    {
-        dw_addr_t start_addr = debug_loc_data.GetAddress(&offset);
-        dw_addr_t end_addr = debug_loc_data.GetAddress(&offset);
-
-        if (start_addr == 0 && end_addr == 0)
-            break;
-
-        uint16_t loc_length = debug_loc_data.GetU16(&offset);
-        offset += loc_length;
-    }
-
-    if (offset > debug_loc_offset)
-        return offset - debug_loc_offset;
-    return 0;
-}
-
-
-
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFLocationList.h b/source/Plugins/SymbolFile/DWARF/DWARFLocationList.h
deleted file mode 100644
index 6dcc0d74e441f..0000000000000
--- a/source/Plugins/SymbolFile/DWARF/DWARFLocationList.h
+++ /dev/null
@@ -1,34 +0,0 @@
-//===-- DWARFLocationList.h -------------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef SymbolFileDWARF_DWARFLocationList_h_
-#define SymbolFileDWARF_DWARFLocationList_h_
-
-#include "SymbolFileDWARF.h"
-
-class DWARFLocationList
-{
-public:
-    static dw_offset_t
-    Dump (lldb_private::Stream &s,
-          const DWARFCompileUnit* cu,
-          const lldb_private::DWARFDataExtractor& debug_loc_data,
-          lldb::offset_t offset);
-
-    static bool
-    Extract (const lldb_private::DWARFDataExtractor& debug_loc_data,
-             lldb::offset_t* offset_ptr,
-             lldb_private::DWARFDataExtractor& location_list_data);
-
-    static size_t
-    Size (const lldb_private::DWARFDataExtractor& debug_loc_data,
-          lldb::offset_t offset);
-
-};
-#endif  // SymbolFileDWARF_DWARFLocationList_h_
diff --git a/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.cpp b/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.cpp
new file mode 100644
index 0000000000000..0db416054ae8e
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.cpp
@@ -0,0 +1,747 @@
+//===-- HashedNameToDIE.cpp -------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "HashedNameToDIE.h"
+
+void
+DWARFMappedHash::ExtractDIEArray (const DIEInfoArray &die_info_array, DIEArray &die_offsets)
+{
+    const size_t count = die_info_array.size();
+    for (size_t i=0; i<count; ++i)
+        die_offsets.emplace_back(die_info_array[i].cu_offset, die_info_array[i].offset);
+}
+
+void
+DWARFMappedHash::ExtractDIEArray (const DIEInfoArray &die_info_array,
+                                  const dw_tag_t tag,
+                                  DIEArray &die_offsets)
+{
+    if (tag == 0)
+    {
+        ExtractDIEArray (die_info_array, die_offsets);
+    }
+    else
+    {
+        const size_t count = die_info_array.size();
+        for (size_t i=0; i<count; ++i)
+        {
+            const dw_tag_t die_tag = die_info_array[i].tag;
+            bool tag_matches = die_tag == 0 || tag == die_tag;
+            if (!tag_matches)
+            {
+                if (die_tag == DW_TAG_class_type || die_tag == DW_TAG_structure_type)
+                    tag_matches = tag == DW_TAG_structure_type || tag == DW_TAG_class_type;
+            }
+            if (tag_matches)
+                die_offsets.emplace_back(die_info_array[i].cu_offset, die_info_array[i].offset);
+        }
+    }
+}
+
+void
+DWARFMappedHash::ExtractDIEArray (const DIEInfoArray &die_info_array,
+                                  const dw_tag_t tag,
+                                  const uint32_t qualified_name_hash,
+                                  DIEArray &die_offsets)
+{
+    if (tag == 0)
+    {
+        ExtractDIEArray (die_info_array, die_offsets);
+    }
+    else
+    {
+        const size_t count = die_info_array.size();
+        for (size_t i=0; i<count; ++i)
+        {
+            if (qualified_name_hash != die_info_array[i].qualified_name_hash)
+                continue;
+            const dw_tag_t die_tag = die_info_array[i].tag;
+            bool tag_matches = die_tag == 0 || tag == die_tag;
+            if (!tag_matches)
+            {
+                if (die_tag == DW_TAG_class_type || die_tag == DW_TAG_structure_type)
+                    tag_matches = tag == DW_TAG_structure_type || tag == DW_TAG_class_type;
+            }
+            if (tag_matches)
+                die_offsets.emplace_back(die_info_array[i].cu_offset, die_info_array[i].offset);
+        }
+    }
+}
+
+void
+DWARFMappedHash::ExtractClassOrStructDIEArray (const DIEInfoArray &die_info_array,
+                                               bool return_implementation_only_if_available,
+                                               DIEArray &die_offsets)
+{
+    const size_t count = die_info_array.size();
+    for (size_t i=0; i<count; ++i)
+    {
+        const dw_tag_t die_tag = die_info_array[i].tag;
+        if (die_tag == 0 || die_tag == DW_TAG_class_type || die_tag == DW_TAG_structure_type)
+        {
+            if (die_info_array[i].type_flags & eTypeFlagClassIsImplementation)
+            {
+                if (return_implementation_only_if_available)
+                {
+                    // We found the one true definition for this class, so
+                    // only return that
+                    die_offsets.clear();                        
+                    die_offsets.emplace_back(die_info_array[i].cu_offset, die_info_array[i].offset);
+                    return;
+                }
+                else
+                {
+                    // Put the one true definition as the first entry so it
+                    // matches first
+                    die_offsets.emplace(die_offsets.begin(), die_info_array[i].cu_offset, die_info_array[i].offset);
+                }
+            }
+            else
+            {
+                die_offsets.emplace_back(die_info_array[i].cu_offset, die_info_array[i].offset);
+            }
+        }
+    }
+}
+
+void
+DWARFMappedHash::ExtractTypesFromDIEArray (const DIEInfoArray &die_info_array,
+                                           uint32_t type_flag_mask,
+                                           uint32_t type_flag_value,
+                                           DIEArray &die_offsets)
+{
+    const size_t count = die_info_array.size();
+    for (size_t i=0; i<count; ++i)
+    {
+        if ((die_info_array[i].type_flags & type_flag_mask) == type_flag_value)
+            die_offsets.emplace_back(die_info_array[i].cu_offset, die_info_array[i].offset);
+    }
+}
+
+const char *
+DWARFMappedHash::GetAtomTypeName (uint16_t atom)
+{
+    switch (atom)
+    {
+        case eAtomTypeNULL:         return "NULL";
+        case eAtomTypeDIEOffset:    return "die-offset";
+        case eAtomTypeCUOffset:     return "cu-offset";
+        case eAtomTypeTag:          return "die-tag";
+        case eAtomTypeNameFlags:    return "name-flags";
+        case eAtomTypeTypeFlags:    return "type-flags";
+        case eAtomTypeQualNameHash: return "qualified-name-hash";
+    }
+    return "<invalid>";
+}
+
+DWARFMappedHash::DIEInfo::DIEInfo () :
+    cu_offset (DW_INVALID_OFFSET),
+    offset (DW_INVALID_OFFSET),
+    tag (0),
+    type_flags (0),
+    qualified_name_hash (0)
+{
+}
+
+DWARFMappedHash::DIEInfo::DIEInfo (dw_offset_t c,
+                                   dw_offset_t o,
+                                   dw_tag_t t,
+                                   uint32_t f,
+                                   uint32_t h) :
+    cu_offset (c),
+    offset (o),
+    tag (t),
+    type_flags (f),
+    qualified_name_hash (h)
+{
+}
+
+DWARFMappedHash::Prologue::Prologue (dw_offset_t _die_base_offset) :
+    die_base_offset (_die_base_offset),
+    atoms(),
+    atom_mask (0),
+    min_hash_data_byte_size(0),
+    hash_data_has_fixed_byte_size(true)
+{
+    // Define an array of DIE offsets by first defining an array, 
+    // and then define the atom type for the array, in this case
+    // we have an array of DIE offsets
+    AppendAtom (eAtomTypeDIEOffset, DW_FORM_data4);
+}
+
+void
+DWARFMappedHash::Prologue::ClearAtoms ()
+{
+    hash_data_has_fixed_byte_size = true;
+    min_hash_data_byte_size = 0;
+    atom_mask = 0;
+    atoms.clear();
+}
+
+bool
+DWARFMappedHash::Prologue::ContainsAtom (AtomType atom_type) const
+{
+    return (atom_mask & (1u << atom_type)) != 0;
+}
+
+void
+DWARFMappedHash::Prologue::Clear ()
+{
+    die_base_offset = 0;
+    ClearAtoms ();
+}
+
+void
+DWARFMappedHash::Prologue::AppendAtom (AtomType type, dw_form_t form)
+{
+    atoms.push_back ({type, form});
+    atom_mask |= 1u << type;
+    switch (form)
+    {
+        case DW_FORM_indirect:
+        case DW_FORM_exprloc:
+        case DW_FORM_flag_present:
+        case DW_FORM_ref_sig8:
+            assert (!"Unhandled atom form");
+            break;
+
+        case DW_FORM_string:
+        case DW_FORM_block:
+        case DW_FORM_block1:
+        case DW_FORM_sdata:
+        case DW_FORM_udata:
+        case DW_FORM_ref_udata:
+        case DW_FORM_GNU_addr_index:
+        case DW_FORM_GNU_str_index:
+            hash_data_has_fixed_byte_size = false;
+            // Fall through to the cases below...
+        case DW_FORM_flag:
+        case DW_FORM_data1:
+        case DW_FORM_ref1:
+        case DW_FORM_sec_offset:
+            min_hash_data_byte_size += 1; 
+            break;
+
+        case DW_FORM_block2:
+            hash_data_has_fixed_byte_size = false;
+            // Fall through to the cases below...
+        case DW_FORM_data2: 
+        case DW_FORM_ref2:
+            min_hash_data_byte_size += 2; 
+            break;
+
+        case DW_FORM_block4: 
+            hash_data_has_fixed_byte_size = false;
+            // Fall through to the cases below...
+        case DW_FORM_data4:
+        case DW_FORM_ref4:
+        case DW_FORM_addr:
+        case DW_FORM_ref_addr:
+        case DW_FORM_strp:
+            min_hash_data_byte_size += 4; 
+            break;
+
+        case DW_FORM_data8:
+        case DW_FORM_ref8:
+            min_hash_data_byte_size += 8; 
+            break;
+            
+    }
+}
+
+lldb::offset_t
+DWARFMappedHash::Prologue::Read (const lldb_private::DataExtractor &data,
+      lldb::offset_t offset)
+{
+    ClearAtoms ();
+    
+    die_base_offset = data.GetU32 (&offset);
+    
+    const uint32_t atom_count = data.GetU32 (&offset);
+    if (atom_count == 0x00060003u)
+    {
+        // Old format, deal with contents of old pre-release format
+        while (data.GetU32(&offset))
+            /* do nothing */;
+
+        // Hardcode to the only known value for now.
+        AppendAtom (eAtomTypeDIEOffset, DW_FORM_data4);
+    }
+    else
+    {
+        for (uint32_t i=0; i<atom_count; ++i)
+        {
+            AtomType type = (AtomType)data.GetU16 (&offset);
+            dw_form_t form = (dw_form_t)data.GetU16 (&offset);                    
+            AppendAtom (type, form);
+        }
+    }
+    return offset;
+}
+
+size_t
+DWARFMappedHash::Prologue::GetByteSize () const
+{
+    // Add an extra count to the atoms size for the zero termination Atom that gets
+    // written to disk
+    return sizeof(die_base_offset) + sizeof(uint32_t) + atoms.size() * sizeof(Atom);
+}
+
+size_t
+DWARFMappedHash::Prologue::GetMinimumHashDataByteSize () const
+{
+    return min_hash_data_byte_size;
+}
+
+bool
+DWARFMappedHash::Prologue::HashDataHasFixedByteSize() const
+{
+    return hash_data_has_fixed_byte_size;
+}
+
+size_t
+DWARFMappedHash::Header::GetByteSize (const HeaderData &header_data)
+{
+    return header_data.GetByteSize();
+}
+
+lldb::offset_t
+DWARFMappedHash::Header::Read (lldb_private::DataExtractor &data, lldb::offset_t offset)
+{
+    offset = MappedHash::Header<Prologue>::Read (data, offset);
+    if (offset != UINT32_MAX)
+    {
+        offset = header_data.Read (data, offset);
+    }
+    return offset;
+}
+
+bool
+DWARFMappedHash::Header::Read (const lldb_private::DWARFDataExtractor &data, 
+                               lldb::offset_t *offset_ptr, 
+                               DIEInfo &hash_data) const
+{
+    const size_t num_atoms = header_data.atoms.size();
+    if (num_atoms == 0)
+        return false;
+    
+    for (size_t i=0; i<num_atoms; ++i)
+    {
+        DWARFFormValue form_value (NULL, header_data.atoms[i].form);
+        
+        if (!form_value.ExtractValue(data, offset_ptr))
+            return false;
+        
+        switch (header_data.atoms[i].type)
+        {
+            case eAtomTypeDIEOffset:    // DIE offset, check form for encoding
+                hash_data.offset = (dw_offset_t)form_value.Reference (header_data.die_base_offset);
+                break;
+
+            case eAtomTypeTag:          // DW_TAG value for the DIE
+                hash_data.tag = (dw_tag_t)form_value.Unsigned ();
+                
+            case eAtomTypeTypeFlags:    // Flags from enum TypeFlags
+                hash_data.type_flags = (uint32_t)form_value.Unsigned ();
+                break;
+
+            case eAtomTypeQualNameHash:    // Flags from enum TypeFlags
+                hash_data.qualified_name_hash = form_value.Unsigned ();
+                break;
+
+            default:
+                // We can always skip atoms we don't know about
+                break;
+        }
+    }
+    return true;
+}
+
+void
+DWARFMappedHash::Header::Dump (lldb_private::Stream& strm, const DIEInfo &hash_data) const
+{
+    const size_t num_atoms = header_data.atoms.size();
+    for (size_t i=0; i<num_atoms; ++i)
+    {
+        if (i > 0)
+            strm.PutCString (", ");
+        
+        DWARFFormValue form_value (NULL, header_data.atoms[i].form);
+        switch (header_data.atoms[i].type)
+        {
+            case eAtomTypeDIEOffset:    // DIE offset, check form for encoding
+                strm.Printf ("{0x%8.8x}", hash_data.offset);
+                break;
+
+            case eAtomTypeTag:          // DW_TAG value for the DIE
+                {
+                    const char *tag_cstr = lldb_private::DW_TAG_value_to_name (hash_data.tag);
+                    if (tag_cstr)
+                        strm.PutCString (tag_cstr);
+                    else
+                        strm.Printf ("DW_TAG_(0x%4.4x)", hash_data.tag);
+                }
+                break;
+
+            case eAtomTypeTypeFlags:    // Flags from enum TypeFlags
+                strm.Printf ("0x%2.2x", hash_data.type_flags);
+                if (hash_data.type_flags)
+                {
+                    strm.PutCString (" (");
+                    if (hash_data.type_flags & eTypeFlagClassIsImplementation)
+                        strm.PutCString (" implementation");
+                    strm.PutCString (" )");
+                }
+                break;
+
+            case eAtomTypeQualNameHash:    // Flags from enum TypeFlags
+                strm.Printf ("0x%8.8x", hash_data.qualified_name_hash);
+                break;
+
+            default:
+                strm.Printf ("AtomType(0x%x)", header_data.atoms[i].type);
+                break;
+        }
+    }
+}
+
+DWARFMappedHash::MemoryTable::MemoryTable (lldb_private::DWARFDataExtractor &table_data, 
+                                           const lldb_private::DWARFDataExtractor &string_table,
+                                           const char *name) :
+    MappedHash::MemoryTable<uint32_t, Header, DIEInfoArray> (table_data),
+    m_data (table_data),
+    m_string_table (string_table),
+    m_name (name)
+{
+}
+
+const char *
+DWARFMappedHash::MemoryTable::GetStringForKeyType (KeyType key) const
+{
+    // The key in the DWARF table is the .debug_str offset for the string
+    return m_string_table.PeekCStr (key);
+}
+
+bool
+DWARFMappedHash::MemoryTable::ReadHashData (uint32_t hash_data_offset, HashData &hash_data) const
+{
+    lldb::offset_t offset = hash_data_offset;
+    offset += 4; // Skip string table offset that contains offset of hash name in .debug_str
+    const uint32_t count = m_data.GetU32 (&offset);
+    if (count > 0)
+    {
+        hash_data.resize(count);
+        for (uint32_t i=0; i<count; ++i)
+        {
+            if (!m_header.Read(m_data, &offset, hash_data[i]))
+                return false;
+        }
+    }
+    else
+        hash_data.clear();
+    return true;
+}
+
+DWARFMappedHash::MemoryTable::Result
+DWARFMappedHash::MemoryTable::GetHashDataForName (const char *name,
+                                                  lldb::offset_t* hash_data_offset_ptr,
+                                                  Pair &pair) const
+{
+    pair.key = m_data.GetU32 (hash_data_offset_ptr);
+    pair.value.clear();
+
+    // If the key is zero, this terminates our chain of HashData objects
+    // for this hash value.
+    if (pair.key == 0)
+        return eResultEndOfHashData;
+
+    // There definitely should be a string for this string offset, if
+    // there isn't, there is something wrong, return and error
+    const char *strp_cstr = m_string_table.PeekCStr (pair.key);
+    if (strp_cstr == NULL)
+    {
+        *hash_data_offset_ptr = UINT32_MAX;
+        return eResultError;
+    }
+
+    const uint32_t count = m_data.GetU32 (hash_data_offset_ptr);
+    const size_t min_total_hash_data_size = count * m_header.header_data.GetMinimumHashDataByteSize();
+    if (count > 0 && m_data.ValidOffsetForDataOfSize (*hash_data_offset_ptr, min_total_hash_data_size))
+    {
+        // We have at least one HashData entry, and we have enough
+        // data to parse at least "count" HashData entries.
+        
+        // First make sure the entire C string matches...
+        const bool match = strcmp (name, strp_cstr) == 0;
+        
+        if (!match && m_header.header_data.HashDataHasFixedByteSize())
+        {
+            // If the string doesn't match and we have fixed size data,
+            // we can just add the total byte size of all HashData objects
+            // to the hash data offset and be done...
+            *hash_data_offset_ptr += min_total_hash_data_size;
+        }
+        else
+        {
+            // If the string does match, or we don't have fixed size data
+            // then we need to read the hash data as a stream. If the
+            // string matches we also append all HashData objects to the
+            // value array.
+            for (uint32_t i=0; i<count; ++i)
+            {
+                DIEInfo die_info;
+                if (m_header.Read(m_data, hash_data_offset_ptr, die_info))
+                {
+                    // Only happened if the HashData of the string matched...
+                    if (match)
+                        pair.value.push_back (die_info);
+                }
+                else
+                {
+                    // Something went wrong while reading the data
+                    *hash_data_offset_ptr = UINT32_MAX;
+                    return eResultError;
+                }
+            }
+        }
+        // Return the correct response depending on if the string matched
+        // or not...
+        if (match)
+            return eResultKeyMatch;     // The key (cstring) matches and we have lookup results!
+        else
+            return eResultKeyMismatch;  // The key doesn't match, this function will get called 
+                                        // again for the next key/value or the key terminator
+                                        // which in our case is a zero .debug_str offset.
+    }
+    else
+    {
+        *hash_data_offset_ptr = UINT32_MAX;
+        return eResultError;
+    }
+}
+
+DWARFMappedHash::MemoryTable::Result
+DWARFMappedHash::MemoryTable::AppendHashDataForRegularExpression (
+        const lldb_private::RegularExpression& regex,
+        lldb::offset_t* hash_data_offset_ptr, 
+        Pair &pair) const
+{
+    pair.key = m_data.GetU32 (hash_data_offset_ptr);
+    // If the key is zero, this terminates our chain of HashData objects
+    // for this hash value.
+    if (pair.key == 0)
+        return eResultEndOfHashData;
+    
+    // There definitely should be a string for this string offset, if
+    // there isn't, there is something wrong, return and error
+    const char *strp_cstr = m_string_table.PeekCStr (pair.key);
+    if (strp_cstr == NULL)
+        return eResultError;
+    
+    const uint32_t count = m_data.GetU32 (hash_data_offset_ptr);
+    const size_t min_total_hash_data_size = count * m_header.header_data.GetMinimumHashDataByteSize();
+    if (count > 0 && m_data.ValidOffsetForDataOfSize (*hash_data_offset_ptr, min_total_hash_data_size))
+    {
+        const bool match = regex.Execute(strp_cstr);
+        
+        if (!match && m_header.header_data.HashDataHasFixedByteSize())
+        {
+            // If the regex doesn't match and we have fixed size data,
+            // we can just add the total byte size of all HashData objects
+            // to the hash data offset and be done...
+            *hash_data_offset_ptr += min_total_hash_data_size;
+        }
+        else
+        {
+            // If the string does match, or we don't have fixed size data
+            // then we need to read the hash data as a stream. If the
+            // string matches we also append all HashData objects to the
+            // value array.
+            for (uint32_t i=0; i<count; ++i)
+            {
+                DIEInfo die_info;
+                if (m_header.Read(m_data, hash_data_offset_ptr, die_info))
+                {
+                    // Only happened if the HashData of the string matched...
+                    if (match)
+                        pair.value.push_back (die_info);
+                }
+                else
+                {
+                    // Something went wrong while reading the data
+                    *hash_data_offset_ptr = UINT32_MAX;
+                    return eResultError;
+                }
+            }
+        }
+        // Return the correct response depending on if the string matched
+        // or not...
+        if (match)
+            return eResultKeyMatch;     // The key (cstring) matches and we have lookup results!
+        else
+            return eResultKeyMismatch;  // The key doesn't match, this function will get called 
+                                        // again for the next key/value or the key terminator
+                                        // which in our case is a zero .debug_str offset.
+    }
+    else
+    {
+        *hash_data_offset_ptr = UINT32_MAX;
+        return eResultError;
+    }
+}
+
+size_t
+DWARFMappedHash::MemoryTable::AppendAllDIEsThatMatchingRegex (
+        const lldb_private::RegularExpression& regex, 
+        DIEInfoArray &die_info_array) const
+{
+    const uint32_t hash_count = m_header.hashes_count;
+    Pair pair;
+    for (uint32_t offset_idx=0; offset_idx<hash_count; ++offset_idx)
+    {
+        lldb::offset_t hash_data_offset = GetHashDataOffset (offset_idx);
+        while (hash_data_offset != UINT32_MAX)
+        {
+            const lldb::offset_t prev_hash_data_offset = hash_data_offset;
+            Result hash_result = AppendHashDataForRegularExpression (regex, &hash_data_offset, pair);
+            if (prev_hash_data_offset == hash_data_offset)
+                break;
+
+            // Check the result of getting our hash data
+            switch (hash_result)
+            {
+                case eResultKeyMatch:
+                case eResultKeyMismatch:
+                    // Whether we matches or not, it doesn't matter, we
+                    // keep looking.
+                    break;
+                    
+                case eResultEndOfHashData:
+                case eResultError:
+                    hash_data_offset = UINT32_MAX;
+                    break;
+            }
+        }
+    }
+    die_info_array.swap (pair.value);
+    return die_info_array.size();
+}
+
+size_t
+DWARFMappedHash::MemoryTable::AppendAllDIEsInRange (const uint32_t die_offset_start, 
+                                                    const uint32_t die_offset_end, 
+                                                    DIEInfoArray &die_info_array) const
+{
+    const uint32_t hash_count = m_header.hashes_count;
+    for (uint32_t offset_idx=0; offset_idx<hash_count; ++offset_idx)
+    {
+        bool done = false;
+        lldb::offset_t hash_data_offset = GetHashDataOffset (offset_idx);
+        while (!done && hash_data_offset != UINT32_MAX)
+        {
+            KeyType key = m_data.GetU32 (&hash_data_offset);
+            // If the key is zero, this terminates our chain of HashData objects
+            // for this hash value.
+            if (key == 0)
+                break;
+            
+            const uint32_t count = m_data.GetU32 (&hash_data_offset);
+            for (uint32_t i=0; i<count; ++i)
+            {
+                DIEInfo die_info;
+                if (m_header.Read(m_data, &hash_data_offset, die_info))
+                {
+                    if (die_info.offset == 0)
+                        done = true;
+                    if (die_offset_start <= die_info.offset && die_info.offset < die_offset_end)
+                        die_info_array.push_back(die_info);
+                }
+            }
+        }
+    }
+    return die_info_array.size();
+}
+
+size_t
+DWARFMappedHash::MemoryTable::FindByName (const char *name, DIEArray &die_offsets)
+{
+    DIEInfoArray die_info_array;
+    if (FindByName(name, die_info_array))
+        DWARFMappedHash::ExtractDIEArray (die_info_array, die_offsets);
+    return die_info_array.size();
+}
+
+size_t
+DWARFMappedHash::MemoryTable::FindByNameAndTag (const char *name,
+                                                const dw_tag_t tag,
+                                                DIEArray &die_offsets)
+{
+    DIEInfoArray die_info_array;
+    if (FindByName(name, die_info_array))
+        DWARFMappedHash::ExtractDIEArray (die_info_array, tag, die_offsets);
+    return die_info_array.size();
+}
+
+size_t
+DWARFMappedHash::MemoryTable::FindByNameAndTagAndQualifiedNameHash (const char *name,
+                                                                    const dw_tag_t tag,
+                                                                    const uint32_t qualified_name_hash,
+                                                                    DIEArray &die_offsets)
+{
+    DIEInfoArray die_info_array;
+    if (FindByName(name, die_info_array))
+        DWARFMappedHash::ExtractDIEArray (die_info_array, tag, qualified_name_hash, die_offsets);
+    return die_info_array.size();
+}
+
+size_t
+DWARFMappedHash::MemoryTable::FindCompleteObjCClassByName (const char *name,
+                                                           DIEArray &die_offsets,
+                                                           bool must_be_implementation)
+{
+    DIEInfoArray die_info_array;
+    if (FindByName(name, die_info_array))
+    {
+        if (must_be_implementation && GetHeader().header_data.ContainsAtom (eAtomTypeTypeFlags))
+        {
+            // If we have two atoms, then we have the DIE offset and
+            // the type flags so we can find the objective C class
+            // efficiently.
+            DWARFMappedHash::ExtractTypesFromDIEArray (die_info_array, 
+                                                       UINT32_MAX,
+                                                       eTypeFlagClassIsImplementation,
+                                                       die_offsets);
+        }
+        else
+        {
+            // We don't only want the one true definition, so try and see
+            // what we can find, and only return class or struct DIEs.
+            // If we do have the full implementation, then return it alone,
+            // else return all possible matches.
+            const bool return_implementation_only_if_available = true;
+            DWARFMappedHash::ExtractClassOrStructDIEArray (die_info_array, 
+                                                           return_implementation_only_if_available,
+                                                           die_offsets);
+        }
+    }
+    return die_offsets.size();
+}
+
+size_t 
+DWARFMappedHash::MemoryTable::FindByName (const char *name, DIEInfoArray &die_info_array)
+{
+    Pair kv_pair;
+    size_t old_size = die_info_array.size();
+    if (Find (name, kv_pair))
+    {
+        die_info_array.swap(kv_pair.value);
+        return die_info_array.size() - old_size;
+    }
+    return 0;
+}
diff --git a/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.h b/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.h
index f8a8cc60467dd..bcde558ae4496 100644
--- a/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.h
+++ b/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.h
@@ -12,139 +12,36 @@
 
 #include <vector>
 
-#include "DWARFDefines.h"
-#include "DWARFFormValue.h"
-
 #include "lldb/lldb-defines.h"
 #include "lldb/Core/dwarf.h"
 #include "lldb/Core/RegularExpression.h"
 #include "lldb/Core/MappedHash.h"
 
+#include "DWARFDefines.h"
+#include "DWARFFormValue.h"
+#include "NameToDIE.h"
 
 class SymbolFileDWARF;
 class DWARFCompileUnit;
 class DWARFDebugInfoEntry;
 
-struct DWARFMappedHash
+class DWARFMappedHash
 {
-    struct DIEInfo
-    {
-        dw_offset_t offset;  // The DIE offset
-        dw_tag_t tag;
-        uint32_t type_flags; // Any flags for this DIEInfo
-        uint32_t qualified_name_hash; // A 32 bit hash of the fully qualified name
-
-        DIEInfo () :
-            offset (DW_INVALID_OFFSET),
-            tag (0),
-            type_flags (0),
-            qualified_name_hash (0)
-        {
-        }
-
-        DIEInfo (dw_offset_t o, dw_tag_t t, uint32_t f, uint32_t h) :
-            offset(o),
-            tag (t),
-            type_flags (f),
-            qualified_name_hash (h)
-        {
-        }
-        
-        void
-        Clear()
-        {
-            offset = DW_INVALID_OFFSET;
-            tag = 0;
-            type_flags = 0;
-            qualified_name_hash = 0;
-        }            
-    };
-    
-    typedef std::vector<DIEInfo> DIEInfoArray;
-    typedef std::vector<uint32_t> DIEArray;
-    
-    static void
-    ExtractDIEArray (const DIEInfoArray &die_info_array,
-                     DIEArray &die_offsets)
-    {
-        const size_t count = die_info_array.size();
-        for (size_t i=0; i<count; ++i)
-        {
-            die_offsets.push_back (die_info_array[i].offset);
-        }
-    }
-
-    static void
-    ExtractDIEArray (const DIEInfoArray &die_info_array,
-                     const dw_tag_t tag,
-                     DIEArray &die_offsets)
-    {
-        if (tag == 0)
-        {
-            ExtractDIEArray (die_info_array, die_offsets);
-        }
-        else
-        {
-            const size_t count = die_info_array.size();
-            for (size_t i=0; i<count; ++i)
-            {
-                const dw_tag_t die_tag = die_info_array[i].tag;
-                bool tag_matches = die_tag == 0 || tag == die_tag;
-                if (!tag_matches)
-                {
-                    if (die_tag == DW_TAG_class_type || die_tag == DW_TAG_structure_type)
-                        tag_matches = tag == DW_TAG_structure_type || tag == DW_TAG_class_type;
-                }
-                if (tag_matches)
-                    die_offsets.push_back (die_info_array[i].offset);
-            }
-        }
-    }
-
-    static void
-    ExtractDIEArray (const DIEInfoArray &die_info_array,
-                     const dw_tag_t tag,
-                     const uint32_t qualified_name_hash,
-                     DIEArray &die_offsets)
-    {
-        if (tag == 0)
-        {
-            ExtractDIEArray (die_info_array, die_offsets);
-        }
-        else
-        {
-            const size_t count = die_info_array.size();
-            for (size_t i=0; i<count; ++i)
-            {
-                if (qualified_name_hash != die_info_array[i].qualified_name_hash)
-                    continue;
-                const dw_tag_t die_tag = die_info_array[i].tag;
-                bool tag_matches = die_tag == 0 || tag == die_tag;
-                if (!tag_matches)
-                {
-                    if (die_tag == DW_TAG_class_type || die_tag == DW_TAG_structure_type)
-                        tag_matches = tag == DW_TAG_structure_type || tag == DW_TAG_class_type;
-                }
-                if (tag_matches)
-                    die_offsets.push_back (die_info_array[i].offset);
-            }
-        }
-    }
-
-    enum AtomType
+public:
+    enum AtomType : uint16_t
     {
-        eAtomTypeNULL       = 0u,
-        eAtomTypeDIEOffset  = 1u,   // DIE offset, check form for encoding
-        eAtomTypeCUOffset   = 2u,   // DIE offset of the compiler unit header that contains the item in question
-        eAtomTypeTag        = 3u,   // DW_TAG_xxx value, should be encoded as DW_FORM_data1 (if no tags exceed 255) or DW_FORM_data2
-        eAtomTypeNameFlags  = 4u,   // Flags from enum NameFlags
-        eAtomTypeTypeFlags  = 5u,   // Flags from enum TypeFlags,
+        eAtomTypeNULL         = 0u,
+        eAtomTypeDIEOffset    = 1u, // DIE offset, check form for encoding
+        eAtomTypeCUOffset     = 2u, // DIE offset of the compiler unit header that contains the item in question
+        eAtomTypeTag          = 3u, // DW_TAG_xxx value, should be encoded as DW_FORM_data1 (if no tags exceed 255) or DW_FORM_data2
+        eAtomTypeNameFlags    = 4u, // Flags from enum NameFlags
+        eAtomTypeTypeFlags    = 5u, // Flags from enum TypeFlags,
         eAtomTypeQualNameHash = 6u  // A 32 bit hash of the full qualified name (since all hash entries are basename only)
                                     // For example a type like "std::vector<int>::iterator" would have a name of "iterator"
                                     // and a 32 bit hash for "std::vector<int>::iterator" to allow us to not have to pull
                                     // in debug info for a type when we know the fully qualified name.
     };
-    
+
     // Bit definitions for the eAtomTypeTypeFlags flags
     enum TypeFlags
     {
@@ -152,782 +49,171 @@ struct DWARFMappedHash
         // @implementation for class
         eTypeFlagClassIsImplementation  = ( 1u << 1 )
     };
-    
 
-    static void
-    ExtractClassOrStructDIEArray (const DIEInfoArray &die_info_array,
-                                  bool return_implementation_only_if_available,
-                                  DIEArray &die_offsets)
+    struct DIEInfo
     {
-        const size_t count = die_info_array.size();
-        for (size_t i=0; i<count; ++i)
-        {
-            const dw_tag_t die_tag = die_info_array[i].tag;
-            if (die_tag == 0 || die_tag == DW_TAG_class_type || die_tag == DW_TAG_structure_type)
-            {
-                if (die_info_array[i].type_flags & eTypeFlagClassIsImplementation)
-                {
-                    if (return_implementation_only_if_available)
-                    {
-                        // We found the one true definition for this class, so
-                        // only return that
-                        die_offsets.clear();                        
-                        die_offsets.push_back (die_info_array[i].offset);
-                        return;
-                    }
-                    else
-                    {
-                        // Put the one true definition as the first entry so it
-                        // matches first
-                        die_offsets.insert (die_offsets.begin(), die_info_array[i].offset);
-                    }
-                }
-                else
-                {
-                    die_offsets.push_back (die_info_array[i].offset);
-                }
-            }
-        }
-    }
+        dw_offset_t cu_offset;
+        dw_offset_t offset;  // The DIE offset
+        dw_tag_t tag;
+        uint32_t type_flags; // Any flags for this DIEInfo
+        uint32_t qualified_name_hash; // A 32 bit hash of the fully qualified name
 
-    static void
-    ExtractTypesFromDIEArray (const DIEInfoArray &die_info_array,
-                              uint32_t type_flag_mask,
-                              uint32_t type_flag_value,
-                              DIEArray &die_offsets)
-    {
-        const size_t count = die_info_array.size();
-        for (size_t i=0; i<count; ++i)
-        {
-            if ((die_info_array[i].type_flags & type_flag_mask) == type_flag_value)
-                die_offsets.push_back (die_info_array[i].offset);
-        }
-    }
+        DIEInfo ();
+        DIEInfo (dw_offset_t c, dw_offset_t o, dw_tag_t t, uint32_t f, uint32_t h);
+    };
 
     struct Atom
     {
-        uint16_t type;
+        AtomType type;
         dw_form_t form;
-        
-        Atom (uint16_t t = eAtomTypeNULL, dw_form_t f = 0) :
-            type (t),
-            form (f)
-        {
-        }
     };
-    
+
+    typedef std::vector<DIEInfo> DIEInfoArray;
     typedef std::vector<Atom> AtomArray;
-    
-    static uint32_t 
-    GetTypeFlags (SymbolFileDWARF *dwarf2Data,
-                  const DWARFCompileUnit* cu,
-                  const DWARFDebugInfoEntry* die);
-    
 
-    static const char *
-    GetAtomTypeName (uint16_t atom)
-    {
-        switch (atom)
-        {
-            case eAtomTypeNULL:         return "NULL";
-            case eAtomTypeDIEOffset:    return "die-offset";
-            case eAtomTypeCUOffset:     return "cu-offset";
-            case eAtomTypeTag:          return "die-tag";
-            case eAtomTypeNameFlags:    return "name-flags";
-            case eAtomTypeTypeFlags:    return "type-flags";
-            case eAtomTypeQualNameHash: return "qualified-name-hash";
-        }
-        return "<invalid>";
-    }
-    struct Prologue
+    class Prologue
     {
-        // DIE offset base so die offsets in hash_data can be CU relative
-        dw_offset_t die_base_offset;
-        AtomArray atoms;
-        uint32_t atom_mask;
-        size_t min_hash_data_byte_size;
-        bool hash_data_has_fixed_byte_size;
-        
-        Prologue (dw_offset_t _die_base_offset = 0) :
-            die_base_offset (_die_base_offset),
-            atoms(),
-            atom_mask (0),
-            min_hash_data_byte_size(0),
-            hash_data_has_fixed_byte_size(true)
-        {
-            // Define an array of DIE offsets by first defining an array, 
-            // and then define the atom type for the array, in this case
-            // we have an array of DIE offsets
-            AppendAtom (eAtomTypeDIEOffset, DW_FORM_data4);
-        }
-        
-        virtual ~Prologue()
-        {
-        }
+    public:
+        Prologue (dw_offset_t _die_base_offset = 0);
 
         void
-        ClearAtoms ()
-        {
-            hash_data_has_fixed_byte_size = true;
-            min_hash_data_byte_size = 0;
-            atom_mask = 0;
-            atoms.clear();
-        }
+        ClearAtoms ();
 
         bool
-        ContainsAtom (AtomType atom_type) const
-        {
-            return (atom_mask & (1u << atom_type)) != 0;
-        }
-
-        virtual void
-        Clear ()
-        {
-            die_base_offset = 0;
-            ClearAtoms ();
-        }
-        
+        ContainsAtom (AtomType atom_type) const;
+
         void
-        AppendAtom (AtomType type, dw_form_t form)
-        {
-            atoms.push_back (Atom(type, form));
-            atom_mask |= 1u << type;
-            switch (form)
-            {
-                case DW_FORM_indirect:
-                case DW_FORM_exprloc:
-                case DW_FORM_flag_present:
-                case DW_FORM_ref_sig8:
-                    assert (!"Unhandled atom form");
-                    break;
-
-                case DW_FORM_string:
-                case DW_FORM_block:
-                case DW_FORM_block1:
-                case DW_FORM_sdata:
-                case DW_FORM_udata:
-                case DW_FORM_ref_udata:
-                    hash_data_has_fixed_byte_size = false;
-                    // Fall through to the cases below...
-                case DW_FORM_flag:
-                case DW_FORM_data1:
-                case DW_FORM_ref1:
-                case DW_FORM_sec_offset:
-                    min_hash_data_byte_size += 1; 
-                    break;
-
-                case DW_FORM_block2:
-                    hash_data_has_fixed_byte_size = false;
-                    // Fall through to the cases below...
-                case DW_FORM_data2: 
-                case DW_FORM_ref2:
-                    min_hash_data_byte_size += 2; 
-                    break;
-
-                case DW_FORM_block4: 
-                    hash_data_has_fixed_byte_size = false;
-                    // Fall through to the cases below...
-                case DW_FORM_data4:
-                case DW_FORM_ref4:
-                case DW_FORM_addr:
-                case DW_FORM_ref_addr:
-                case DW_FORM_strp:
-                    min_hash_data_byte_size += 4; 
-                    break;
-
-                case DW_FORM_data8:
-                case DW_FORM_ref8:
-                    min_hash_data_byte_size += 8; 
-                    break;
-                    
-            }
-        }
-        
-//        void
-//        Dump (std::ostream* ostrm_ptr);        
-        
+        Clear ();
+
+        void
+        AppendAtom (AtomType type, dw_form_t form);
+
         lldb::offset_t
-        Read (const lldb_private::DataExtractor &data,
-              lldb::offset_t offset)
-        {
-            ClearAtoms ();
-            
-            die_base_offset = data.GetU32 (&offset);
-            
-            const uint32_t atom_count = data.GetU32 (&offset);
-            if (atom_count == 0x00060003u)
-            {
-                // Old format, deal with contents of old pre-release format
-                while (data.GetU32(&offset))
-                    /* do nothing */;
-
-                // Hardcode to the only known value for now.
-                AppendAtom (eAtomTypeDIEOffset, DW_FORM_data4);
-            }
-            else
-            {
-                for (uint32_t i=0; i<atom_count; ++i)
-                {
-                    AtomType type = (AtomType)data.GetU16 (&offset);
-                    dw_form_t form = (dw_form_t)data.GetU16 (&offset);                    
-                    AppendAtom (type, form);
-                }
-            }
-            return offset;
-        }
-        
-//        virtual void
-//        Write (BinaryStreamBuf &s);
-        
+        Read (const lldb_private::DataExtractor &data, lldb::offset_t offset);
+
         size_t
-        GetByteSize () const
-        {
-            // Add an extra count to the atoms size for the zero termination Atom that gets
-            // written to disk
-            return sizeof(die_base_offset) + sizeof(uint32_t) + atoms.size() * sizeof(Atom);
-        }
-        
+        GetByteSize () const;
+
         size_t
-        GetMinimumHashDataByteSize () const
-        {
-            return min_hash_data_byte_size;
-        }
+        GetMinimumHashDataByteSize () const;
 
         bool
-        HashDataHasFixedByteSize() const
-        {
-            return hash_data_has_fixed_byte_size;
-        }
+        HashDataHasFixedByteSize() const;
+
+        // DIE offset base so die offsets in hash_data can be CU relative
+        dw_offset_t die_base_offset;
+        AtomArray atoms;
+        uint32_t atom_mask;
+        size_t min_hash_data_byte_size;
+        bool hash_data_has_fixed_byte_size;
     };
     
-    struct Header : public MappedHash::Header<Prologue>
+    class Header : public MappedHash::Header<Prologue>
     {
-        Header (dw_offset_t _die_base_offset = 0)
-        {
-        }
-        
-        virtual 
-        ~Header()
-        {
-        }
-
-        virtual size_t
-        GetByteSize (const HeaderData &header_data)
-        {
-            return header_data.GetByteSize();
-        }
-
-        //        virtual void
-        //        Dump (std::ostream* ostrm_ptr);        
-        //        
-        virtual lldb::offset_t
-        Read (lldb_private::DataExtractor &data, lldb::offset_t offset)
-        {
-            offset = MappedHash::Header<Prologue>::Read (data, offset);
-            if (offset != UINT32_MAX)
-            {
-                offset = header_data.Read (data, offset);
-            }
-            return offset;
-        }
-        
+    public:
+        size_t
+        GetByteSize (const HeaderData &header_data) override;
+
+        lldb::offset_t
+        Read (lldb_private::DataExtractor &data, lldb::offset_t offset) override;
+
         bool
         Read (const lldb_private::DWARFDataExtractor &data, 
               lldb::offset_t *offset_ptr, 
-              DIEInfo &hash_data) const
-        {
-            const size_t num_atoms = header_data.atoms.size();
-            if (num_atoms == 0)
-                return false;
-            
-            for (size_t i=0; i<num_atoms; ++i)
-            {
-                DWARFFormValue form_value (NULL, header_data.atoms[i].form);
-                
-                if (!form_value.ExtractValue(data, offset_ptr))
-                    return false;
-                
-                switch (header_data.atoms[i].type)
-                {
-                    case eAtomTypeDIEOffset:    // DIE offset, check form for encoding
-                        hash_data.offset = (dw_offset_t)form_value.Reference (header_data.die_base_offset);
-                        break;
-
-                    case eAtomTypeTag:          // DW_TAG value for the DIE
-                        hash_data.tag = (dw_tag_t)form_value.Unsigned ();
-                        
-                    case eAtomTypeTypeFlags:    // Flags from enum TypeFlags
-                        hash_data.type_flags = (uint32_t)form_value.Unsigned ();
-                        break;
-
-                    case eAtomTypeQualNameHash:    // Flags from enum TypeFlags
-                        hash_data.qualified_name_hash = form_value.Unsigned ();
-                        break;
-
-                    default:
-                        // We can always skip atoms we don't know about
-                        break;
-                }
-            }
-            return true;
-        }
-        
+              DIEInfo &hash_data) const;
+
         void
-        Dump (lldb_private::Stream& strm, const DIEInfo &hash_data) const
-        {
-            const size_t num_atoms = header_data.atoms.size();
-            for (size_t i=0; i<num_atoms; ++i)
-            {
-                if (i > 0)
-                    strm.PutCString (", ");
-                
-                DWARFFormValue form_value (NULL, header_data.atoms[i].form);
-                switch (header_data.atoms[i].type)
-                {
-                    case eAtomTypeDIEOffset:    // DIE offset, check form for encoding
-                        strm.Printf ("{0x%8.8x}", hash_data.offset);
-                        break;
-
-                    case eAtomTypeTag:          // DW_TAG value for the DIE
-                        {
-                            const char *tag_cstr = lldb_private::DW_TAG_value_to_name (hash_data.tag);
-                            if (tag_cstr)
-                                strm.PutCString (tag_cstr);
-                            else
-                                strm.Printf ("DW_TAG_(0x%4.4x)", hash_data.tag);
-                        }
-                        break;
-
-                    case eAtomTypeTypeFlags:    // Flags from enum TypeFlags
-                        strm.Printf ("0x%2.2x", hash_data.type_flags);
-                        if (hash_data.type_flags)
-                        {
-                            strm.PutCString (" (");
-                            if (hash_data.type_flags & eTypeFlagClassIsImplementation)
-                                strm.PutCString (" implementation");
-                            strm.PutCString (" )");
-                        }
-                        break;
-
-                    case eAtomTypeQualNameHash:    // Flags from enum TypeFlags
-                        strm.Printf ("0x%8.8x", hash_data.qualified_name_hash);
-                        break;
-
-                    default:
-                        strm.Printf ("AtomType(0x%x)", header_data.atoms[i].type);
-                        break;
-                }
-            }
-        }
+        Dump (lldb_private::Stream& strm, const DIEInfo &hash_data) const;
     };
-    
-//    class ExportTable
-//    {
-//    public:
-//        ExportTable ();
-//        
-//        void
-//        AppendNames (DWARFDebugPubnamesSet &pubnames_set,
-//                     StringTable &string_table);
-//        
-//        void
-//        AppendNamesEntry (SymbolFileDWARF *dwarf2Data,
-//                          const DWARFCompileUnit* cu,
-//                          const DWARFDebugInfoEntry* die,
-//                          StringTable &string_table);
-//        
-//        void
-//        AppendTypesEntry (DWARFData *dwarf2Data,
-//                          const DWARFCompileUnit* cu,
-//                          const DWARFDebugInfoEntry* die,
-//                          StringTable &string_table);
-//        
-//        size_t
-//        Save (BinaryStreamBuf &names_data, const StringTable &string_table);
-//        
-//        void
-//        AppendName (const char *name, 
-//                    uint32_t die_offset, 
-//                    StringTable &string_table,
-//                    dw_offset_t name_debug_str_offset = DW_INVALID_OFFSET); // If "name" has already been looked up, then it can be supplied
-//        void
-//        AppendType (const char *name, 
-//                    uint32_t die_offset, 
-//                    StringTable &string_table);
-//        
-//        
-//    protected:
-//        struct Entry
-//        {
-//            uint32_t hash;
-//            uint32_t str_offset;
-//            uint32_t die_offset;
-//        };
-//        
-//        // Map uniqued .debug_str offset to the corresponding DIE offsets
-//        typedef std::map<uint32_t, DIEInfoArray> NameInfo;
-//        // Map a name hash to one or more name infos
-//        typedef std::map<uint32_t, NameInfo> BucketEntry;
-//        
-//        static uint32_t
-//        GetByteSize (const NameInfo &name_info);
-//        
-//        typedef std::vector<BucketEntry> BucketEntryColl;
-//        typedef std::vector<Entry> EntryColl;
-//        EntryColl m_entries;
-//        
-//    };
-    
-    
+
     // A class for reading and using a saved hash table from a block of data
     // in memory
     class MemoryTable : public MappedHash::MemoryTable<uint32_t, DWARFMappedHash::Header, DIEInfoArray>
     {
     public:
-        
         MemoryTable (lldb_private::DWARFDataExtractor &table_data, 
                      const lldb_private::DWARFDataExtractor &string_table,
-                     const char *name) :
-            MappedHash::MemoryTable<uint32_t, Header, DIEInfoArray> (table_data),
-            m_data (table_data),
-            m_string_table (string_table),
-            m_name (name)
-        {
-        }
-    
-        virtual 
-        ~MemoryTable ()
-        {
-        }
-
-        virtual const char *
-        GetStringForKeyType (KeyType key) const
-        {
-            // The key in the DWARF table is the .debug_str offset for the string
-            return m_string_table.PeekCStr (key);
-        }
+                     const char *name);
+
+        const char *
+        GetStringForKeyType (KeyType key) const override;
         
-        virtual bool
-        ReadHashData (uint32_t hash_data_offset,
-                      HashData &hash_data) const
-        {
-            lldb::offset_t offset = hash_data_offset;
-            offset += 4; // Skip string table offset that contains offset of hash name in .debug_str
-            const uint32_t count = m_data.GetU32 (&offset);
-            if (count > 0)
-            {
-                hash_data.resize(count);
-                for (uint32_t i=0; i<count; ++i)
-                {
-                    if (!m_header.Read(m_data, &offset, hash_data[i]))
-                        return false;
-                }
-            }
-            else
-                hash_data.clear();
-            return true;
-        }
-
-        virtual Result
-        GetHashDataForName (const char *name,
-                            lldb::offset_t* hash_data_offset_ptr,
-                            Pair &pair) const
-        {
-            pair.key = m_data.GetU32 (hash_data_offset_ptr);
-            pair.value.clear();
-
-            // If the key is zero, this terminates our chain of HashData objects
-            // for this hash value.
-            if (pair.key == 0)
-                return eResultEndOfHashData;
-
-            // There definitely should be a string for this string offset, if
-            // there isn't, there is something wrong, return and error
-            const char *strp_cstr = m_string_table.PeekCStr (pair.key);
-            if (strp_cstr == NULL)
-            {
-                *hash_data_offset_ptr = UINT32_MAX;
-                return eResultError;
-            }
-
-            const uint32_t count = m_data.GetU32 (hash_data_offset_ptr);
-            const size_t min_total_hash_data_size = count * m_header.header_data.GetMinimumHashDataByteSize();
-            if (count > 0 && m_data.ValidOffsetForDataOfSize (*hash_data_offset_ptr, min_total_hash_data_size))
-            {
-                // We have at least one HashData entry, and we have enough
-                // data to parse at least "count" HashData entries.
-                
-                // First make sure the entire C string matches...
-                const bool match = strcmp (name, strp_cstr) == 0;
-                
-                if (!match && m_header.header_data.HashDataHasFixedByteSize())
-                {
-                    // If the string doesn't match and we have fixed size data,
-                    // we can just add the total byte size of all HashData objects
-                    // to the hash data offset and be done...
-                    *hash_data_offset_ptr += min_total_hash_data_size;
-                }
-                else
-                {
-                    // If the string does match, or we don't have fixed size data
-                    // then we need to read the hash data as a stream. If the
-                    // string matches we also append all HashData objects to the
-                    // value array.
-                    for (uint32_t i=0; i<count; ++i)
-                    {
-                        DIEInfo die_info;
-                        if (m_header.Read(m_data, hash_data_offset_ptr, die_info))
-                        {
-                            // Only happened if the HashData of the string matched...
-                            if (match)
-                                pair.value.push_back (die_info);
-                        }
-                        else
-                        {
-                            // Something went wrong while reading the data
-                            *hash_data_offset_ptr = UINT32_MAX;
-                            return eResultError;
-                        }
-                    }
-                }
-                // Return the correct response depending on if the string matched
-                // or not...
-                if (match)
-                    return eResultKeyMatch;     // The key (cstring) matches and we have lookup results!
-                else
-                    return eResultKeyMismatch;  // The key doesn't match, this function will get called 
-                                                // again for the next key/value or the key terminator
-                                                // which in our case is a zero .debug_str offset.
-            }
-            else
-            {
-                *hash_data_offset_ptr = UINT32_MAX;
-                return eResultError;
-            }
-        }
-
-        virtual Result
-        AppendHashDataForRegularExpression (const lldb_private::RegularExpression& regex,
-                                            lldb::offset_t* hash_data_offset_ptr, 
-                                            Pair &pair) const
-        {
-            pair.key = m_data.GetU32 (hash_data_offset_ptr);
-            // If the key is zero, this terminates our chain of HashData objects
-            // for this hash value.
-            if (pair.key == 0)
-                return eResultEndOfHashData;
-            
-            // There definitely should be a string for this string offset, if
-            // there isn't, there is something wrong, return and error
-            const char *strp_cstr = m_string_table.PeekCStr (pair.key);
-            if (strp_cstr == NULL)
-                return eResultError;
-            
-            const uint32_t count = m_data.GetU32 (hash_data_offset_ptr);
-            const size_t min_total_hash_data_size = count * m_header.header_data.GetMinimumHashDataByteSize();
-            if (count > 0 && m_data.ValidOffsetForDataOfSize (*hash_data_offset_ptr, min_total_hash_data_size))
-            {
-                const bool match = regex.Execute(strp_cstr);
-                
-                if (!match && m_header.header_data.HashDataHasFixedByteSize())
-                {
-                    // If the regex doesn't match and we have fixed size data,
-                    // we can just add the total byte size of all HashData objects
-                    // to the hash data offset and be done...
-                    *hash_data_offset_ptr += min_total_hash_data_size;
-                }
-                else
-                {
-                    // If the string does match, or we don't have fixed size data
-                    // then we need to read the hash data as a stream. If the
-                    // string matches we also append all HashData objects to the
-                    // value array.
-                    for (uint32_t i=0; i<count; ++i)
-                    {
-                        DIEInfo die_info;
-                        if (m_header.Read(m_data, hash_data_offset_ptr, die_info))
-                        {
-                            // Only happened if the HashData of the string matched...
-                            if (match)
-                                pair.value.push_back (die_info);
-                        }
-                        else
-                        {
-                            // Something went wrong while reading the data
-                            *hash_data_offset_ptr = UINT32_MAX;
-                            return eResultError;
-                        }
-                    }
-                }
-                // Return the correct response depending on if the string matched
-                // or not...
-                if (match)
-                    return eResultKeyMatch;     // The key (cstring) matches and we have lookup results!
-                else
-                    return eResultKeyMismatch;  // The key doesn't match, this function will get called 
-                                                // again for the next key/value or the key terminator
-                                                // which in our case is a zero .debug_str offset.
-            }
-            else
-            {
-                *hash_data_offset_ptr = UINT32_MAX;
-                return eResultError;
-            }
-        }
+        bool
+        ReadHashData (uint32_t hash_data_offset, HashData &hash_data) const override;
 
         size_t
         AppendAllDIEsThatMatchingRegex (const lldb_private::RegularExpression& regex, 
-                                        DIEInfoArray &die_info_array) const
-        {
-            const uint32_t hash_count = m_header.hashes_count;
-            Pair pair;
-            for (uint32_t offset_idx=0; offset_idx<hash_count; ++offset_idx)
-            {
-                lldb::offset_t hash_data_offset = GetHashDataOffset (offset_idx);
-                while (hash_data_offset != UINT32_MAX)
-                {
-                    const lldb::offset_t prev_hash_data_offset = hash_data_offset;
-                    Result hash_result = AppendHashDataForRegularExpression (regex, &hash_data_offset, pair);
-                    if (prev_hash_data_offset == hash_data_offset)
-                        break;
-
-                    // Check the result of getting our hash data
-                    switch (hash_result)
-                    {
-                        case eResultKeyMatch:
-                        case eResultKeyMismatch:
-                            // Whether we matches or not, it doesn't matter, we
-                            // keep looking.
-                            break;
-                            
-                        case eResultEndOfHashData:
-                        case eResultError:
-                            hash_data_offset = UINT32_MAX;
-                            break;
-                    }
-                }
-            }
-            die_info_array.swap (pair.value);
-            return die_info_array.size();
-        }
-        
+                                        DIEInfoArray &die_info_array) const;
+
         size_t
         AppendAllDIEsInRange (const uint32_t die_offset_start, 
                               const uint32_t die_offset_end, 
-                              DIEInfoArray &die_info_array) const
-        {
-            const uint32_t hash_count = m_header.hashes_count;
-            for (uint32_t offset_idx=0; offset_idx<hash_count; ++offset_idx)
-            {
-                bool done = false;
-                lldb::offset_t hash_data_offset = GetHashDataOffset (offset_idx);
-                while (!done && hash_data_offset != UINT32_MAX)
-                {
-                    KeyType key = m_data.GetU32 (&hash_data_offset);
-                    // If the key is zero, this terminates our chain of HashData objects
-                    // for this hash value.
-                    if (key == 0)
-                        break;
-                    
-                    const uint32_t count = m_data.GetU32 (&hash_data_offset);
-                    for (uint32_t i=0; i<count; ++i)
-                    {
-                        DIEInfo die_info;
-                        if (m_header.Read(m_data, &hash_data_offset, die_info))
-                        {
-                            if (die_info.offset == 0)
-                                done = true;
-                            if (die_offset_start <= die_info.offset && die_info.offset < die_offset_end)
-                                die_info_array.push_back(die_info);
-                        }
-                    }
-                }
-            }
-            return die_info_array.size();
-        }
+                              DIEInfoArray &die_info_array) const;
 
         size_t
-        FindByName (const char *name, DIEArray &die_offsets)
-        {
-            DIEInfoArray die_info_array;
-            if (FindByName(name, die_info_array))
-                DWARFMappedHash::ExtractDIEArray (die_info_array, die_offsets);
-            return die_info_array.size();
-        }
+        FindByName (const char *name, DIEArray &die_offsets);
 
         size_t
-        FindByNameAndTag (const char *name, 
-                          const dw_tag_t tag, 
-                          DIEArray &die_offsets)
-        {
-            DIEInfoArray die_info_array;
-            if (FindByName(name, die_info_array))
-                DWARFMappedHash::ExtractDIEArray (die_info_array, tag, die_offsets);
-            return die_info_array.size();
-        }
+        FindByNameAndTag (const char *name, const dw_tag_t tag, DIEArray &die_offsets);
 
         size_t
         FindByNameAndTagAndQualifiedNameHash (const char *name,
                                               const dw_tag_t tag,
                                               const uint32_t qualified_name_hash,
-                                              DIEArray &die_offsets)
-        {
-            DIEInfoArray die_info_array;
-            if (FindByName(name, die_info_array))
-                DWARFMappedHash::ExtractDIEArray (die_info_array, tag, qualified_name_hash, die_offsets);
-            return die_info_array.size();
-        }
+                                              DIEArray &die_offsets);
 
         size_t
-        FindCompleteObjCClassByName (const char *name, DIEArray &die_offsets, bool must_be_implementation)
-        {
-            DIEInfoArray die_info_array;
-            if (FindByName(name, die_info_array))
-            {
-                if (must_be_implementation && GetHeader().header_data.ContainsAtom (eAtomTypeTypeFlags))
-                {
-                    // If we have two atoms, then we have the DIE offset and
-                    // the type flags so we can find the objective C class
-                    // efficiently.
-                    DWARFMappedHash::ExtractTypesFromDIEArray (die_info_array, 
-                                                               UINT32_MAX,
-                                                               eTypeFlagClassIsImplementation,
-                                                               die_offsets);
-                }
-                else
-                {
-                    // We don't only want the one true definition, so try and see
-                    // what we can find, and only return class or struct DIEs.
-                    // If we do have the full implementation, then return it alone,
-                    // else return all possible matches.
-                    const bool return_implementation_only_if_available = true;
-                    DWARFMappedHash::ExtractClassOrStructDIEArray (die_info_array, 
-                                                                   return_implementation_only_if_available,
-                                                                   die_offsets);
-                }
-            }
-            return die_offsets.size();
-        }
+        FindCompleteObjCClassByName (const char *name,
+                                     DIEArray &die_offsets,
+                                     bool must_be_implementation);
 
-        size_t 
-        FindByName (const char *name, DIEInfoArray &die_info_array)
-        {
-            Pair kv_pair;
-            size_t old_size = die_info_array.size();
-            if (Find (name, kv_pair))
-            {
-                die_info_array.swap(kv_pair.value);
-                return die_info_array.size() - old_size;
-            }
-            return 0;
-        }
-        
     protected:
+        Result
+        AppendHashDataForRegularExpression (const lldb_private::RegularExpression& regex,
+                                            lldb::offset_t* hash_data_offset_ptr, 
+                                            Pair &pair) const;
+
+        size_t 
+        FindByName (const char *name, DIEInfoArray &die_info_array);
+
+        Result
+        GetHashDataForName (const char *name,
+                            lldb::offset_t* hash_data_offset_ptr,
+                            Pair &pair) const override;
+
         const lldb_private::DWARFDataExtractor &m_data;
         const lldb_private::DWARFDataExtractor &m_string_table;
         std::string m_name;
     };
-};
 
+    static void
+    ExtractDIEArray (const DIEInfoArray &die_info_array, DIEArray &die_offsets);
+
+protected:
+    static void
+    ExtractDIEArray (const DIEInfoArray &die_info_array,
+                     const dw_tag_t tag,
+                     DIEArray &die_offsets);
+
+    static void
+    ExtractDIEArray (const DIEInfoArray &die_info_array,
+                     const dw_tag_t tag,
+                     const uint32_t qualified_name_hash,
+                     DIEArray &die_offsets);
+
+    static void
+    ExtractClassOrStructDIEArray (const DIEInfoArray &die_info_array,
+                                  bool return_implementation_only_if_available,
+                                  DIEArray &die_offsets);
+
+    static void
+    ExtractTypesFromDIEArray (const DIEInfoArray &die_info_array,
+                              uint32_t type_flag_mask,
+                              uint32_t type_flag_value,
+                              DIEArray &die_offsets);
+
+    static const char *
+    GetAtomTypeName (uint16_t atom);
+};
 
 #endif  // SymbolFileDWARF_HashedNameToDIE_h_
diff --git a/source/Plugins/SymbolFile/DWARF/LogChannelDWARF.h b/source/Plugins/SymbolFile/DWARF/LogChannelDWARF.h
index 2091a8414f586..24fa7d148cd35 100644
--- a/source/Plugins/SymbolFile/DWARF/LogChannelDWARF.h
+++ b/source/Plugins/SymbolFile/DWARF/LogChannelDWARF.h
@@ -1,4 +1,4 @@
-//===-- LogChannelDWARF.h --------------------------------------*- C++ -*-===//
+//===-- LogChannelDWARF.h ---------------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -13,7 +13,6 @@
 // C Includes
 // C++ Includes
 // Other libraries and framework includes
-
 // Project includes
 #include "lldb/Core/Log.h"
 
@@ -34,8 +33,7 @@ class LogChannelDWARF : public lldb_private::LogChannel
 public:
     LogChannelDWARF ();
 
-    virtual
-    ~LogChannelDWARF ();
+    ~LogChannelDWARF() override;
 
     static void
     Initialize();
@@ -52,26 +50,26 @@ public:
     static lldb_private::LogChannel *
     CreateInstance ();
 
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
 
-    virtual uint32_t
-    GetPluginVersion();
+    uint32_t
+    GetPluginVersion() override;
 
-    virtual void
-    Disable (const char** categories, lldb_private::Stream *feedback_strm);
+    void
+    Disable(const char** categories, lldb_private::Stream *feedback_strm) override;
 
     void
     Delete ();
 
-    virtual bool
-    Enable (lldb::StreamSP &log_stream_sp,
-            uint32_t log_options,
-            lldb_private::Stream *feedback_strm,      // Feedback stream for argument errors etc
-            const char **categories);    // The categories to enable within this logging stream, if empty, enable default set
+    bool
+    Enable(lldb::StreamSP &log_stream_sp,
+           uint32_t log_options,
+           lldb_private::Stream *feedback_strm,  // Feedback stream for argument errors etc
+           const char **categories) override;    // The categories to enable within this logging stream, if empty, enable default set
 
-    virtual void
-    ListCategories (lldb_private::Stream *strm);
+    void
+    ListCategories(lldb_private::Stream *strm) override;
 
     static lldb_private::Log *
     GetLog ();
@@ -86,4 +84,4 @@ public:
     LogIf (uint32_t mask, const char *format, ...);
 };
 
-#endif  // SymbolFileDWARF_LogChannelDWARF_h_
+#endif // SymbolFileDWARF_LogChannelDWARF_h_
diff --git a/source/Plugins/SymbolFile/DWARF/NameToDIE.cpp b/source/Plugins/SymbolFile/DWARF/NameToDIE.cpp
index c49237b8fbbcf..775bb6718b8a2 100644
--- a/source/Plugins/SymbolFile/DWARF/NameToDIE.cpp
+++ b/source/Plugins/SymbolFile/DWARF/NameToDIE.cpp
@@ -18,6 +18,7 @@
 #include "DWARFDebugInfo.h"
 #include "DWARFDebugInfoEntry.h"
 #include "SymbolFileDWARF.h"
+
 using namespace lldb;
 using namespace lldb_private;
 
@@ -29,9 +30,9 @@ NameToDIE::Finalize()
 }
 
 void
-NameToDIE::Insert (const ConstString& name, uint32_t die_offset)
+NameToDIE::Insert (const ConstString& name, const DIERef& die_ref)
 {
-    m_map.Append(name.GetCString(), die_offset);
+    m_map.Append(name.GetCString(), die_ref);
 }
 
 size_t
@@ -47,17 +48,15 @@ NameToDIE::Find (const RegularExpression& regex, DIEArray &info_array) const
 }
 
 size_t
-NameToDIE::FindAllEntriesForCompileUnit (uint32_t cu_offset, 
-                                         uint32_t cu_end_offset, 
-                                         DIEArray &info_array) const
+NameToDIE::FindAllEntriesForCompileUnit (dw_offset_t cu_offset, DIEArray &info_array) const
 {
     const size_t initial_size = info_array.size();
     const uint32_t size = m_map.GetSize();
     for (uint32_t i=0; i<size; ++i)
     {
-        const uint32_t die_offset = m_map.GetValueAtIndexUnchecked(i);
-        if (cu_offset < die_offset && die_offset < cu_end_offset)
-            info_array.push_back (die_offset);
+        const DIERef& die_ref = m_map.GetValueAtIndexUnchecked(i);
+        if (cu_offset == die_ref.cu_offset)
+            info_array.push_back (die_ref);
     }
     return info_array.size() - initial_size;
 }
@@ -69,18 +68,29 @@ NameToDIE::Dump (Stream *s)
     for (uint32_t i=0; i<size; ++i)
     {
         const char *cstr = m_map.GetCStringAtIndex(i);
-        s->Printf("%p: {0x%8.8x} \"%s\"\n", (const void *)cstr, m_map.GetValueAtIndexUnchecked(i), cstr);
+        const DIERef& die_ref = m_map.GetValueAtIndexUnchecked(i);
+        s->Printf("%p: {0x%8.8x/0x%8.8x} \"%s\"\n", cstr, die_ref.cu_offset, die_ref.die_offset, cstr);
     }
 }
 
 void
-NameToDIE::ForEach (std::function <bool(const char *name, uint32_t die_offset)> const &callback) const
+NameToDIE::ForEach (std::function <bool(const char *name, const DIERef& die_ref)> const &callback) const
 {
     const uint32_t size = m_map.GetSize();
     for (uint32_t i=0; i<size; ++i)
     {
-        if (!callback(m_map.GetCStringAtIndexUnchecked(i),
-                      m_map.GetValueAtIndexUnchecked (i)))
+        if (!callback(m_map.GetCStringAtIndexUnchecked(i), m_map.GetValueAtIndexUnchecked (i)))
             break;
     }
 }
+
+void
+NameToDIE::Append (const NameToDIE& other)
+{
+    const uint32_t size = other.m_map.GetSize();
+    for (uint32_t i = 0; i < size; ++i)
+    {
+        m_map.Append(other.m_map.GetCStringAtIndexUnchecked (i),
+                     other.m_map.GetValueAtIndexUnchecked (i));
+    }
+}
diff --git a/source/Plugins/SymbolFile/DWARF/NameToDIE.h b/source/Plugins/SymbolFile/DWARF/NameToDIE.h
index f9a12736bf9e6..7fc66138f51e7 100644
--- a/source/Plugins/SymbolFile/DWARF/NameToDIE.h
+++ b/source/Plugins/SymbolFile/DWARF/NameToDIE.h
@@ -10,56 +10,53 @@
 #ifndef SymbolFileDWARF_NameToDIE_h_
 #define SymbolFileDWARF_NameToDIE_h_
 
-#include "lldb/Core/UniqueCStringMap.h"
-
 #include <functional>
 
+#include "lldb/Core/dwarf.h"
+#include "lldb/Core/UniqueCStringMap.h"
 #include "lldb/lldb-defines.h"
+#include "DIERef.h"
 
 class SymbolFileDWARF;
 
-typedef std::vector<uint32_t> DIEArray;
-
 class NameToDIE
 {
 public:
-    NameToDIE () :   
+    NameToDIE () :
         m_map()
     {
     }
-    
+
     ~NameToDIE ()
     {
     }
-    
+
     void
     Dump (lldb_private::Stream *s);
 
     void
-    Insert (const lldb_private::ConstString& name, uint32_t die_offset);
+    Insert (const lldb_private::ConstString& name, const DIERef& die_ref);
+
+    void
+    Append (const NameToDIE& other);
 
     void
     Finalize();
 
     size_t
-    Find (const lldb_private::ConstString &name, 
-          DIEArray &info_array) const;
+    Find (const lldb_private::ConstString &name, DIEArray &info_array) const;
     
     size_t
-    Find (const lldb_private::RegularExpression& regex, 
-          DIEArray &info_array) const;
+    Find (const lldb_private::RegularExpression& regex, DIEArray &info_array) const;
 
     size_t
-    FindAllEntriesForCompileUnit (uint32_t cu_offset, 
-                                  uint32_t cu_end_offset, 
-                                  DIEArray &info_array) const;
+    FindAllEntriesForCompileUnit (dw_offset_t cu_offset, DIEArray &info_array) const;
 
     void
-    ForEach (std::function <bool(const char *name, uint32_t die_offset)> const &callback) const;
+    ForEach (std::function <bool(const char *name, const DIERef& die_ref)> const &callback) const;
 
 protected:
-    lldb_private::UniqueCStringMap<uint32_t> m_map;
-
+    lldb_private::UniqueCStringMap<DIERef> m_map;
 };
 
 #endif  // SymbolFileDWARF_NameToDIE_h_
diff --git a/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
index ea8aedcc2be05..0ed4d05be5c23 100644
--- a/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
+++ b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
@@ -10,20 +10,6 @@
 #include "SymbolFileDWARF.h"
 
 // Other libraries and framework includes
-#include "clang/AST/ASTConsumer.h"
-#include "clang/AST/ASTContext.h"
-#include "clang/AST/Decl.h"
-#include "clang/AST/DeclGroup.h"
-#include "clang/AST/DeclObjC.h"
-#include "clang/AST/DeclTemplate.h"
-#include "clang/Basic/Builtins.h"
-#include "clang/Basic/IdentifierTable.h"
-#include "clang/Basic/LangOptions.h"
-#include "clang/Basic/SourceManager.h"
-#include "clang/Basic/TargetInfo.h"
-#include "clang/Basic/Specifiers.h"
-#include "clang/Sema/DeclSpec.h"
-
 #include "llvm/Support/Casting.h"
 
 #include "lldb/Core/ArchSpec.h"
@@ -39,34 +25,48 @@
 #include "lldb/Core/Timer.h"
 #include "lldb/Core/Value.h"
 
-#include "lldb/Expression/ClangModulesDeclVendor.h"
+#include "Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.h"
 
+#include "lldb/Host/FileSystem.h"
 #include "lldb/Host/Host.h"
 
+#include "lldb/Interpreter/OptionValueFileSpecList.h"
+#include "lldb/Interpreter/OptionValueProperties.h"
+
 #include "lldb/Symbol/Block.h"
-#include "lldb/Symbol/ClangExternalASTSourceCallbacks.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Symbol/CompilerDecl.h"
+#include "lldb/Symbol/CompilerDeclContext.h"
 #include "lldb/Symbol/CompileUnit.h"
 #include "lldb/Symbol/LineTable.h"
+#include "lldb/Symbol/DebugMacros.h"
 #include "lldb/Symbol/ObjectFile.h"
 #include "lldb/Symbol/SymbolVendor.h"
+#include "lldb/Symbol/TypeSystem.h"
 #include "lldb/Symbol/VariableList.h"
+#include "lldb/Symbol/TypeMap.h"
+
+#include "Plugins/Language/CPlusPlus/CPlusPlusLanguage.h"
+#include "Plugins/Language/ObjC/ObjCLanguage.h"
+
+#include "lldb/Target/Language.h"
 
-#include "lldb/Target/ObjCLanguageRuntime.h"
-#include "lldb/Target/CPPLanguageRuntime.h"
+#include "lldb/Utility/TaskPool.h"
 
+#include "DWARFASTParser.h"
 #include "DWARFCompileUnit.h"
 #include "DWARFDebugAbbrev.h"
 #include "DWARFDebugAranges.h"
 #include "DWARFDebugInfo.h"
-#include "DWARFDebugInfoEntry.h"
 #include "DWARFDebugLine.h"
+#include "DWARFDebugMacro.h"
 #include "DWARFDebugPubnames.h"
 #include "DWARFDebugRanges.h"
 #include "DWARFDeclContext.h"
 #include "DWARFDIECollection.h"
 #include "DWARFFormValue.h"
-#include "DWARFLocationList.h"
 #include "LogChannelDWARF.h"
+#include "SymbolFileDWARFDwo.h"
 #include "SymbolFileDWARFDebugMap.h"
 
 #include <map>
@@ -83,8 +83,6 @@
 #define DEBUG_PRINTF(fmt, ...)
 #endif
 
-#define DIE_IS_BEING_PARSED ((lldb_private::Type*)1)
-
 using namespace lldb;
 using namespace lldb_private;
 
@@ -105,18 +103,58 @@ using namespace lldb_private;
 //    return false;
 //}
 //
-static AccessType
-DW_ACCESS_to_AccessType (uint32_t dwarf_accessibility)
-{
-    switch (dwarf_accessibility)
+
+namespace {
+
+    PropertyDefinition
+    g_properties[] =
+    {
+        { "comp-dir-symlink-paths" , OptionValue::eTypeFileSpecList, true,  0 ,   nullptr, nullptr, "If the DW_AT_comp_dir matches any of these paths the symbolic links will be resolved at DWARF parse time." },
+        {  nullptr                 , OptionValue::eTypeInvalid     , false, 0,    nullptr, nullptr, nullptr }
+    };
+
+    enum
+    {
+        ePropertySymLinkPaths
+    };
+
+
+    class PluginProperties : public Properties
     {
-        case DW_ACCESS_public:      return eAccessPublic;
-        case DW_ACCESS_private:     return eAccessPrivate;
-        case DW_ACCESS_protected:   return eAccessProtected;
-        default:                    break;
+    public:
+        static ConstString
+        GetSettingName()
+        {
+            return SymbolFileDWARF::GetPluginNameStatic();
+        }
+
+        PluginProperties()
+        {
+            m_collection_sp.reset (new OptionValueProperties(GetSettingName()));
+            m_collection_sp->Initialize(g_properties);
+        }
+
+        FileSpecList&
+        GetSymLinkPaths()
+        {
+            OptionValueFileSpecList *option_value = m_collection_sp->GetPropertyAtIndexAsOptionValueFileSpecList(nullptr, true, ePropertySymLinkPaths);
+            assert(option_value);
+            return option_value->GetCurrentValue();
+        }
+
+    };
+
+    typedef std::shared_ptr<PluginProperties> SymbolFileDWARFPropertiesSP;
+
+    static const SymbolFileDWARFPropertiesSP&
+    GetGlobalPluginProperties()
+    {
+        static const auto g_settings_sp(std::make_shared<PluginProperties>());
+        return g_settings_sp;
     }
-    return eAccessNone;
-}
+
+}  // anonymous namespace end
+
 
 static const char*
 removeHostnameFromPathname(const char* path_from_dwarf)
@@ -125,9 +163,15 @@ removeHostnameFromPathname(const char* path_from_dwarf)
     {
         return path_from_dwarf;
     }
-
+    
     const char *colon_pos = strchr(path_from_dwarf, ':');
-    if (!colon_pos)
+    if (nullptr == colon_pos)
+    {
+        return path_from_dwarf;
+    }
+    
+    const char *slash_pos = strchr(path_from_dwarf, '/');
+    if (slash_pos && (slash_pos < colon_pos))
     {
         return path_from_dwarf;
     }
@@ -142,89 +186,42 @@ removeHostnameFromPathname(const char* path_from_dwarf)
     {
         return path_from_dwarf;
     }
-
+    
     return colon_pos + 1;
 }
 
-#if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE)
-
-class DIEStack
+static const char*
+resolveCompDir(const char* path_from_dwarf)
 {
-public:
-    
-    void Push (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
-    {
-        m_dies.push_back (DIEInfo(cu, die));
-    }
+    if (!path_from_dwarf)
+        return nullptr;
 
-    
-    void LogDIEs (Log *log, SymbolFileDWARF *dwarf)
-    {
-        StreamString log_strm;
-        const size_t n = m_dies.size();
-        log_strm.Printf("DIEStack[%" PRIu64 "]:\n", (uint64_t)n);
-        for (size_t i=0; i<n; i++)
-        {
-            DWARFCompileUnit *cu = m_dies[i].cu;
-            const DWARFDebugInfoEntry *die = m_dies[i].die;
-            std::string qualified_name;
-            die->GetQualifiedName(dwarf, cu, qualified_name);
-            log_strm.Printf ("[%" PRIu64 "] 0x%8.8x: %s name='%s'\n",
-                             (uint64_t)i,
-                             die->GetOffset(), 
-                             DW_TAG_value_to_name(die->Tag()), 
-                             qualified_name.c_str());
-        }
-        log->PutCString(log_strm.GetData());
-    }
-    void Pop ()
-    {
-        m_dies.pop_back();
-    }
-    
-    class ScopedPopper
-    {
-    public:
-        ScopedPopper (DIEStack &die_stack) :
-            m_die_stack (die_stack),
-            m_valid (false)
-        {
-        }
-        
-        void
-        Push (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
-        {
-            m_valid = true;
-            m_die_stack.Push (cu, die);
-        }
-        
-        ~ScopedPopper ()
-        {
-            if (m_valid)
-                m_die_stack.Pop();
-        }
-        
-        
-        
-    protected:
-        DIEStack &m_die_stack;
-        bool m_valid;
-    };
+    // DWARF2/3 suggests the form hostname:pathname for compilation directory.
+    // Remove the host part if present.
+    const char* local_path = removeHostnameFromPathname(path_from_dwarf);
+    if (!local_path)
+        return nullptr;
+
+    bool is_symlink = false;
+    FileSpec local_path_spec(local_path, false);
+    const auto& file_specs = GetGlobalPluginProperties()->GetSymLinkPaths();
+    for (size_t i = 0; i < file_specs.GetSize() && !is_symlink; ++i)
+        is_symlink = FileSpec::Equal(file_specs.GetFileSpecAtIndex(i), local_path_spec, true);
+
+    if (!is_symlink)
+        return local_path;
+
+    if (!local_path_spec.IsSymbolicLink())
+        return local_path;
+
+    FileSpec resolved_local_path_spec;
+    const auto error = FileSystem::Readlink(local_path_spec, resolved_local_path_spec);
+    if (error.Success())
+        return resolved_local_path_spec.GetCString();
+
+    return nullptr;
+}
 
-protected:
-    struct DIEInfo {
-        DIEInfo (DWARFCompileUnit *c, const DWARFDebugInfoEntry *d) :
-            cu(c),
-            die(d)
-        {
-        }
-        DWARFCompileUnit *cu;
-        const DWARFDebugInfoEntry *die;
-    };
-    typedef std::vector<DIEInfo> Stack;
-    Stack m_dies;
-};
-#endif
 
 void
 SymbolFileDWARF::Initialize()
@@ -232,7 +229,21 @@ SymbolFileDWARF::Initialize()
     LogChannelDWARF::Initialize();
     PluginManager::RegisterPlugin (GetPluginNameStatic(),
                                    GetPluginDescriptionStatic(),
-                                   CreateInstance);
+                                   CreateInstance,
+                                   DebuggerInitialize);
+}
+
+void
+SymbolFileDWARF::DebuggerInitialize(Debugger &debugger)
+{
+    if (!PluginManager::GetSettingForSymbolFilePlugin(debugger, PluginProperties::GetSettingName()))
+    {
+        const bool is_global_setting = true;
+        PluginManager::CreateSettingForSymbolFilePlugin(debugger,
+                                                        GetGlobalPluginProperties()->GetValueProperties(),
+                                                        ConstString ("Properties for the dwarf symbol-file plug-in."),
+                                                        is_global_setting);
+    }
 }
 
 void
@@ -272,65 +283,61 @@ SymbolFileDWARF::GetTypeList ()
 
 }
 void
-SymbolFileDWARF::GetTypes (DWARFCompileUnit* cu,
-                           const DWARFDebugInfoEntry *die,
+SymbolFileDWARF::GetTypes (const DWARFDIE &die,
                            dw_offset_t min_die_offset,
                            dw_offset_t max_die_offset,
                            uint32_t type_mask,
                            TypeSet &type_set)
 {
-    if (cu)
+    if (die)
     {
-        if (die)
+        const dw_offset_t die_offset = die.GetOffset();
+        
+        if (die_offset >= max_die_offset)
+            return;
+        
+        if (die_offset >= min_die_offset)
         {
-            const dw_offset_t die_offset = die->GetOffset();
-            
-            if (die_offset >= max_die_offset)
-                return;
+            const dw_tag_t tag = die.Tag();
             
-            if (die_offset >= min_die_offset)
-            {
-                const dw_tag_t tag = die->Tag();
-                
-                bool add_type = false;
+            bool add_type = false;
 
-                switch (tag)
-                {
-                    case DW_TAG_array_type:         add_type = (type_mask & eTypeClassArray         ) != 0; break;
-                    case DW_TAG_unspecified_type:
-                    case DW_TAG_base_type:          add_type = (type_mask & eTypeClassBuiltin       ) != 0; break;
-                    case DW_TAG_class_type:         add_type = (type_mask & eTypeClassClass         ) != 0; break;
-                    case DW_TAG_structure_type:     add_type = (type_mask & eTypeClassStruct        ) != 0; break;
-                    case DW_TAG_union_type:         add_type = (type_mask & eTypeClassUnion         ) != 0; break;
-                    case DW_TAG_enumeration_type:   add_type = (type_mask & eTypeClassEnumeration   ) != 0; break;
-                    case DW_TAG_subroutine_type:
-                    case DW_TAG_subprogram:
-                    case DW_TAG_inlined_subroutine: add_type = (type_mask & eTypeClassFunction      ) != 0; break;
-                    case DW_TAG_pointer_type:       add_type = (type_mask & eTypeClassPointer       ) != 0; break;
-                    case DW_TAG_rvalue_reference_type:
-                    case DW_TAG_reference_type:     add_type = (type_mask & eTypeClassReference     ) != 0; break;
-                    case DW_TAG_typedef:            add_type = (type_mask & eTypeClassTypedef       ) != 0; break;
-                    case DW_TAG_ptr_to_member_type: add_type = (type_mask & eTypeClassMemberPointer ) != 0; break;
-                }
+            switch (tag)
+            {
+                case DW_TAG_array_type:         add_type = (type_mask & eTypeClassArray         ) != 0; break;
+                case DW_TAG_unspecified_type:
+                case DW_TAG_base_type:          add_type = (type_mask & eTypeClassBuiltin       ) != 0; break;
+                case DW_TAG_class_type:         add_type = (type_mask & eTypeClassClass         ) != 0; break;
+                case DW_TAG_structure_type:     add_type = (type_mask & eTypeClassStruct        ) != 0; break;
+                case DW_TAG_union_type:         add_type = (type_mask & eTypeClassUnion         ) != 0; break;
+                case DW_TAG_enumeration_type:   add_type = (type_mask & eTypeClassEnumeration   ) != 0; break;
+                case DW_TAG_subroutine_type:
+                case DW_TAG_subprogram:
+                case DW_TAG_inlined_subroutine: add_type = (type_mask & eTypeClassFunction      ) != 0; break;
+                case DW_TAG_pointer_type:       add_type = (type_mask & eTypeClassPointer       ) != 0; break;
+                case DW_TAG_rvalue_reference_type:
+                case DW_TAG_reference_type:     add_type = (type_mask & eTypeClassReference     ) != 0; break;
+                case DW_TAG_typedef:            add_type = (type_mask & eTypeClassTypedef       ) != 0; break;
+                case DW_TAG_ptr_to_member_type: add_type = (type_mask & eTypeClassMemberPointer ) != 0; break;
+            }
 
-                if (add_type)
+            if (add_type)
+            {
+                const bool assert_not_being_parsed = true;
+                Type *type = ResolveTypeUID (die, assert_not_being_parsed);
+                if (type)
                 {
-                    const bool assert_not_being_parsed = true;
-                    Type *type = ResolveTypeUID (cu, die, assert_not_being_parsed);
-                    if (type)
-                    {
-                        if (type_set.find(type) == type_set.end())
-                            type_set.insert(type);
-                    }
+                    if (type_set.find(type) == type_set.end())
+                        type_set.insert(type);
                 }
             }
-            
-            for (const DWARFDebugInfoEntry *child_die = die->GetFirstChild();
-                 child_die != NULL;
-                 child_die = child_die->GetSibling())
-            {
-                GetTypes (cu, child_die, min_die_offset, max_die_offset, type_mask, type_set);
-            }
+        }
+        
+        for (DWARFDIE child_die = die.GetFirstChild();
+             child_die.IsValid();
+             child_die = child_die.GetSibling())
+        {
+            GetTypes (child_die, min_die_offset, max_die_offset, type_mask, type_set);
         }
     }
 }
@@ -353,8 +360,7 @@ SymbolFileDWARF::GetTypes (SymbolContextScope *sc_scope,
         dwarf_cu = GetDWARFCompileUnit(comp_unit);
         if (dwarf_cu == 0)
             return 0;
-        GetTypes (dwarf_cu,
-                  dwarf_cu->DIE(),
+        GetTypes (dwarf_cu->DIE(),
                   dwarf_cu->GetOffset(),
                   dwarf_cu->GetNextCompileUnitOffset(),
                   type_mask,
@@ -371,8 +377,7 @@ SymbolFileDWARF::GetTypes (SymbolContextScope *sc_scope,
                 dwarf_cu = info->GetCompileUnitAtIndex(cu_idx);
                 if (dwarf_cu)
                 {
-                    GetTypes (dwarf_cu,
-                              dwarf_cu->DIE(),
+                    GetTypes (dwarf_cu->DIE(),
                               0,
                               UINT32_MAX,
                               type_mask,
@@ -381,76 +386,15 @@ SymbolFileDWARF::GetTypes (SymbolContextScope *sc_scope,
             }
         }
     }
-//    if (m_using_apple_tables)
-//    {
-//        DWARFMappedHash::MemoryTable *apple_types = m_apple_types_ap.get();
-//        if (apple_types)
-//        {
-//            apple_types->ForEach([this, &type_set, apple_types, type_mask](const DWARFMappedHash::DIEInfoArray &die_info_array) -> bool {
-//
-//                for (auto die_info: die_info_array)
-//                {
-//                    bool add_type = TagMatchesTypeMask (type_mask, 0);
-//                    if (!add_type)
-//                    {
-//                        dw_tag_t tag = die_info.tag;
-//                        if (tag == 0)
-//                        {
-//                            const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtr(die_info.offset, NULL);
-//                            tag = die->Tag();
-//                        }
-//                        add_type = TagMatchesTypeMask (type_mask, tag);
-//                    }
-//                    if (add_type)
-//                    {
-//                        Type *type = ResolveTypeUID(die_info.offset);
-//                        
-//                        if (type_set.find(type) == type_set.end())
-//                            type_set.insert(type);
-//                    }
-//                }
-//                return true; // Keep iterating
-//            });
-//        }
-//    }
-//    else
-//    {
-//        if (!m_indexed)
-//            Index ();
-//        
-//        m_type_index.ForEach([this, &type_set, type_mask](const char *name, uint32_t die_offset) -> bool {
-//            
-//            bool add_type = TagMatchesTypeMask (type_mask, 0);
-//
-//            if (!add_type)
-//            {
-//                const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtr(die_offset, NULL);
-//                if (die)
-//                {
-//                    const dw_tag_t tag = die->Tag();
-//                    add_type = TagMatchesTypeMask (type_mask, tag);
-//                }
-//            }
-//            
-//            if (add_type)
-//            {
-//                Type *type = ResolveTypeUID(die_offset);
-//                
-//                if (type_set.find(type) == type_set.end())
-//                    type_set.insert(type);
-//            }
-//            return true; // Keep iterating
-//        });
-//    }
-    
-    std::set<ClangASTType> clang_type_set;
+
+    std::set<CompilerType> compiler_type_set;
     size_t num_types_added = 0;
     for (Type *type : type_set)
     {
-        ClangASTType clang_type = type->GetClangForwardType();
-        if (clang_type_set.find(clang_type) == clang_type_set.end())
+        CompilerType compiler_type = type->GetForwardCompilerType ();
+        if (compiler_type_set.find(compiler_type) == compiler_type_set.end())
         {
-            clang_type_set.insert(clang_type);
+            compiler_type_set.insert(compiler_type);
             type_list.Insert (type->shared_from_this());
             ++num_types_added;
         }
@@ -463,13 +407,13 @@ SymbolFileDWARF::GetTypes (SymbolContextScope *sc_scope,
 // Gets the first parent that is a lexical block, function or inlined
 // subroutine, or compile unit.
 //----------------------------------------------------------------------
-static const DWARFDebugInfoEntry *
-GetParentSymbolContextDIE(const DWARFDebugInfoEntry *child_die)
+DWARFDIE
+SymbolFileDWARF::GetParentSymbolContextDIE(const DWARFDIE &child_die)
 {
-    const DWARFDebugInfoEntry *die;
-    for (die = child_die->GetParent(); die != NULL; die = die->GetParent())
+    DWARFDIE die;
+    for (die = child_die.GetParent(); die; die = die.GetParent())
     {
-        dw_tag_t tag = die->Tag();
+        dw_tag_t tag = die.Tag();
 
         switch (tag)
         {
@@ -480,7 +424,7 @@ GetParentSymbolContextDIE(const DWARFDebugInfoEntry *child_die)
             return die;
         }
     }
-    return NULL;
+    return DWARFDIE();
 }
 
 
@@ -489,13 +433,12 @@ SymbolFileDWARF::SymbolFileDWARF(ObjectFile* objfile) :
     UserID (0),  // Used by SymbolFileDWARFDebugMap to when this class parses .o files to contain the .o file index/ID
     m_debug_map_module_wp (),
     m_debug_map_symfile (NULL),
-    m_clang_tu_decl (NULL),
-    m_flags(),
     m_data_debug_abbrev (),
     m_data_debug_aranges (),
     m_data_debug_frame (),
     m_data_debug_info (),
     m_data_debug_line (),
+    m_data_debug_macro (),
     m_data_debug_loc (),
     m_data_debug_ranges (),
     m_data_debug_str (),
@@ -518,7 +461,6 @@ SymbolFileDWARF::SymbolFileDWARF(ObjectFile* objfile) :
     m_type_index(),
     m_namespace_index(),
     m_indexed (false),
-    m_is_external_ast_source (false),
     m_using_apple_tables (false),
     m_fetched_external_modules (false),
     m_supports_DW_AT_APPLE_objc_complete_type (eLazyBoolCalculate),
@@ -529,12 +471,6 @@ SymbolFileDWARF::SymbolFileDWARF(ObjectFile* objfile) :
 
 SymbolFileDWARF::~SymbolFileDWARF()
 {
-    if (m_is_external_ast_source)
-    {
-        ModuleSP module_sp (m_obj_file->GetModule());
-        if (module_sp)
-            module_sp->GetClangASTContext().RemoveExternalSource ();
-    }
 }
 
 static const ConstString &
@@ -552,36 +488,31 @@ SymbolFileDWARF::GetUniqueDWARFASTTypeMap ()
     return m_unique_ast_type_map;
 }
 
-ClangASTContext &       
-SymbolFileDWARF::GetClangASTContext ()
+TypeSystem *
+SymbolFileDWARF::GetTypeSystemForLanguage (LanguageType language)
 {
-    if (GetDebugMapSymfile ())
-        return m_debug_map_symfile->GetClangASTContext ();
-
-    ClangASTContext &ast = m_obj_file->GetModule()->GetClangASTContext();
-    if (!m_is_external_ast_source)
+    SymbolFileDWARFDebugMap * debug_map_symfile = GetDebugMapSymfile ();
+    TypeSystem *type_system;
+    if (debug_map_symfile)
     {
-        m_is_external_ast_source = true;
-        llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> ast_source_ap (
-            new ClangExternalASTSourceCallbacks (SymbolFileDWARF::CompleteTagDecl,
-                                                 SymbolFileDWARF::CompleteObjCInterfaceDecl,
-                                                 SymbolFileDWARF::FindExternalVisibleDeclsByName,
-                                                 SymbolFileDWARF::LayoutRecordType,
-                                                 this));
-        ast.SetExternalSource (ast_source_ap);
+        type_system = debug_map_symfile->GetTypeSystemForLanguage(language);
     }
-    return ast;
+    else
+    {
+        type_system = m_obj_file->GetModule()->GetTypeSystemForLanguage(language);
+        if (type_system)
+            type_system->SetSymbolFile(this);
+    }
+    return type_system;
 }
 
 void
 SymbolFileDWARF::InitializeObject()
 {
-    // Install our external AST source callbacks so we can complete Clang types.
     ModuleSP module_sp (m_obj_file->GetModule());
     if (module_sp)
     {
         const SectionList *section_list = module_sp->GetSectionList();
-
         const Section* section = section_list->FindSectionByName(GetDWARFMachOSegmentName ()).get();
 
         // Memory map the DWARF mach-o segment so we have everything mmap'ed
@@ -589,19 +520,24 @@ SymbolFileDWARF::InitializeObject()
         if (section)
             m_obj_file->MemoryMapSectionData(section, m_dwarf_data);
     }
+
     get_apple_names_data();
-    if (m_data_apple_names.GetByteSize() > 0)
+    if (m_data_apple_names.m_data.GetByteSize() > 0)
     {
-        m_apple_names_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_names, get_debug_str_data(), ".apple_names"));
+        m_apple_names_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_names.m_data,
+                                                                  get_debug_str_data(),
+                                                                  ".apple_names"));
         if (m_apple_names_ap->IsValid())
             m_using_apple_tables = true;
         else
             m_apple_names_ap.reset();
     }
     get_apple_types_data();
-    if (m_data_apple_types.GetByteSize() > 0)
+    if (m_data_apple_types.m_data.GetByteSize() > 0)
     {
-        m_apple_types_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_types, get_debug_str_data(), ".apple_types"));
+        m_apple_types_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_types.m_data,
+                                                                  get_debug_str_data(),
+                                                                  ".apple_types"));
         if (m_apple_types_ap->IsValid())
             m_using_apple_tables = true;
         else
@@ -609,9 +545,11 @@ SymbolFileDWARF::InitializeObject()
     }
 
     get_apple_namespaces_data();
-    if (m_data_apple_namespaces.GetByteSize() > 0)
+    if (m_data_apple_namespaces.m_data.GetByteSize() > 0)
     {
-        m_apple_namespaces_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_namespaces, get_debug_str_data(), ".apple_namespaces"));
+        m_apple_namespaces_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_namespaces.m_data,
+                                                                       get_debug_str_data(),
+                                                                       ".apple_namespaces"));
         if (m_apple_namespaces_ap->IsValid())
             m_using_apple_tables = true;
         else
@@ -619,9 +557,11 @@ SymbolFileDWARF::InitializeObject()
     }
 
     get_apple_objc_data();
-    if (m_data_apple_objc.GetByteSize() > 0)
+    if (m_data_apple_objc.m_data.GetByteSize() > 0)
     {
-        m_apple_objc_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_objc, get_debug_str_data(), ".apple_objc"));
+        m_apple_objc_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_objc.m_data,
+                                                                 get_debug_str_data(),
+                                                                 ".apple_objc"));
         if (m_apple_objc_ap->IsValid())
             m_using_apple_tables = true;
         else
@@ -663,46 +603,10 @@ SymbolFileDWARF::CalculateAbilities ()
             section = section_list->FindSectionByType (eSectionTypeDWARFDebugAbbrev, true).get();
             if (section)
                 debug_abbrev_file_size = section->GetFileSize();
-            else
-                m_flags.Set (flagsGotDebugAbbrevData);
-
-            section = section_list->FindSectionByType (eSectionTypeDWARFDebugAranges, true).get();
-            if (!section)
-                m_flags.Set (flagsGotDebugArangesData);
-
-            section = section_list->FindSectionByType (eSectionTypeDWARFDebugFrame, true).get();
-            if (!section)
-                m_flags.Set (flagsGotDebugFrameData);
 
             section = section_list->FindSectionByType (eSectionTypeDWARFDebugLine, true).get();
             if (section)
                 debug_line_file_size = section->GetFileSize();
-            else
-                m_flags.Set (flagsGotDebugLineData);
-
-            section = section_list->FindSectionByType (eSectionTypeDWARFDebugLoc, true).get();
-            if (!section)
-                m_flags.Set (flagsGotDebugLocData);
-
-            section = section_list->FindSectionByType (eSectionTypeDWARFDebugMacInfo, true).get();
-            if (!section)
-                m_flags.Set (flagsGotDebugMacInfoData);
-
-            section = section_list->FindSectionByType (eSectionTypeDWARFDebugPubNames, true).get();
-            if (!section)
-                m_flags.Set (flagsGotDebugPubNamesData);
-
-            section = section_list->FindSectionByType (eSectionTypeDWARFDebugPubTypes, true).get();
-            if (!section)
-                m_flags.Set (flagsGotDebugPubTypesData);
-
-            section = section_list->FindSectionByType (eSectionTypeDWARFDebugRanges, true).get();
-            if (!section)
-                m_flags.Set (flagsGotDebugRangesData);
-
-            section = section_list->FindSectionByType (eSectionTypeDWARFDebugStr, true).get();
-            if (!section)
-                m_flags.Set (flagsGotDebugStrData);
         }
         else
         {
@@ -737,104 +641,128 @@ SymbolFileDWARF::CalculateAbilities ()
 }
 
 const DWARFDataExtractor&
-SymbolFileDWARF::GetCachedSectionData (uint32_t got_flag, SectionType sect_type, DWARFDataExtractor &data)
+SymbolFileDWARF::GetCachedSectionData (lldb::SectionType sect_type, DWARFDataSegment& data_segment)
 {
-    if (m_flags.IsClear (got_flag))
+    std::call_once(data_segment.m_flag,
+                   &SymbolFileDWARF::LoadSectionData,
+                   this,
+                   sect_type,
+                   std::ref(data_segment.m_data));
+    return data_segment.m_data;
+}
+
+void
+SymbolFileDWARF::LoadSectionData (lldb::SectionType sect_type, DWARFDataExtractor& data)
+{
+    ModuleSP module_sp (m_obj_file->GetModule());
+    const SectionList *section_list = module_sp->GetSectionList();
+    if (section_list)
     {
-        ModuleSP module_sp (m_obj_file->GetModule());
-        m_flags.Set (got_flag);
-        const SectionList *section_list = module_sp->GetSectionList();
-        if (section_list)
+        SectionSP section_sp (section_list->FindSectionByType(sect_type, true));
+        if (section_sp)
         {
-            SectionSP section_sp (section_list->FindSectionByType(sect_type, true));
-            if (section_sp)
+            // See if we memory mapped the DWARF segment?
+            if (m_dwarf_data.GetByteSize())
             {
-                // See if we memory mapped the DWARF segment?
-                if (m_dwarf_data.GetByteSize())
-                {
-                    data.SetData(m_dwarf_data, section_sp->GetOffset (), section_sp->GetFileSize());
-                }
-                else
-                {
-                    if (m_obj_file->ReadSectionData (section_sp.get(), data) == 0)
-                        data.Clear();
-                }
+                data.SetData(m_dwarf_data, section_sp->GetOffset(), section_sp->GetFileSize());
+            }
+            else
+            {
+                if (m_obj_file->ReadSectionData(section_sp.get(), data) == 0)
+                    data.Clear();
             }
         }
     }
-    return data;
 }
 
 const DWARFDataExtractor&
 SymbolFileDWARF::get_debug_abbrev_data()
 {
-    return GetCachedSectionData (flagsGotDebugAbbrevData, eSectionTypeDWARFDebugAbbrev, m_data_debug_abbrev);
+    return GetCachedSectionData (eSectionTypeDWARFDebugAbbrev, m_data_debug_abbrev);
+}
+
+const DWARFDataExtractor&
+SymbolFileDWARF::get_debug_addr_data()
+{
+    return GetCachedSectionData (eSectionTypeDWARFDebugAddr, m_data_debug_addr);
 }
 
 const DWARFDataExtractor&
 SymbolFileDWARF::get_debug_aranges_data()
 {
-    return GetCachedSectionData (flagsGotDebugArangesData, eSectionTypeDWARFDebugAranges, m_data_debug_aranges);
+    return GetCachedSectionData (eSectionTypeDWARFDebugAranges, m_data_debug_aranges);
 }
 
 const DWARFDataExtractor&
 SymbolFileDWARF::get_debug_frame_data()
 {
-    return GetCachedSectionData (flagsGotDebugFrameData, eSectionTypeDWARFDebugFrame, m_data_debug_frame);
+    return GetCachedSectionData (eSectionTypeDWARFDebugFrame, m_data_debug_frame);
 }
 
 const DWARFDataExtractor&
 SymbolFileDWARF::get_debug_info_data()
 {
-    return GetCachedSectionData (flagsGotDebugInfoData, eSectionTypeDWARFDebugInfo, m_data_debug_info);
+    return GetCachedSectionData (eSectionTypeDWARFDebugInfo, m_data_debug_info);
 }
 
 const DWARFDataExtractor&
 SymbolFileDWARF::get_debug_line_data()
 {
-    return GetCachedSectionData (flagsGotDebugLineData, eSectionTypeDWARFDebugLine, m_data_debug_line);
+    return GetCachedSectionData (eSectionTypeDWARFDebugLine, m_data_debug_line);
+}
+
+const DWARFDataExtractor&
+SymbolFileDWARF::get_debug_macro_data()
+{
+    return GetCachedSectionData (eSectionTypeDWARFDebugMacro, m_data_debug_macro);
 }
 
 const DWARFDataExtractor&
 SymbolFileDWARF::get_debug_loc_data()
 {
-    return GetCachedSectionData (flagsGotDebugLocData, eSectionTypeDWARFDebugLoc, m_data_debug_loc);
+    return GetCachedSectionData (eSectionTypeDWARFDebugLoc, m_data_debug_loc);
 }
 
 const DWARFDataExtractor&
 SymbolFileDWARF::get_debug_ranges_data()
 {
-    return GetCachedSectionData (flagsGotDebugRangesData, eSectionTypeDWARFDebugRanges, m_data_debug_ranges);
+    return GetCachedSectionData (eSectionTypeDWARFDebugRanges, m_data_debug_ranges);
 }
 
 const DWARFDataExtractor&
 SymbolFileDWARF::get_debug_str_data()
 {
-    return GetCachedSectionData (flagsGotDebugStrData, eSectionTypeDWARFDebugStr, m_data_debug_str);
+    return GetCachedSectionData (eSectionTypeDWARFDebugStr, m_data_debug_str);
+}
+
+const DWARFDataExtractor&
+SymbolFileDWARF::get_debug_str_offsets_data()
+{
+    return GetCachedSectionData (eSectionTypeDWARFDebugStrOffsets, m_data_debug_str_offsets);
 }
 
 const DWARFDataExtractor&
 SymbolFileDWARF::get_apple_names_data()
 {
-    return GetCachedSectionData (flagsGotAppleNamesData, eSectionTypeDWARFAppleNames, m_data_apple_names);
+    return GetCachedSectionData (eSectionTypeDWARFAppleNames, m_data_apple_names);
 }
 
 const DWARFDataExtractor&
 SymbolFileDWARF::get_apple_types_data()
 {
-    return GetCachedSectionData (flagsGotAppleTypesData, eSectionTypeDWARFAppleTypes, m_data_apple_types);
+    return GetCachedSectionData (eSectionTypeDWARFAppleTypes, m_data_apple_types);
 }
 
 const DWARFDataExtractor&
 SymbolFileDWARF::get_apple_namespaces_data()
 {
-    return GetCachedSectionData (flagsGotAppleNamespacesData, eSectionTypeDWARFAppleNamespaces, m_data_apple_namespaces);
+    return GetCachedSectionData (eSectionTypeDWARFAppleNamespaces, m_data_apple_namespaces);
 }
 
 const DWARFDataExtractor&
 SymbolFileDWARF::get_apple_objc_data()
 {
-    return GetCachedSectionData (flagsGotAppleObjCData, eSectionTypeDWARFAppleObjC, m_data_apple_objc);
+    return GetCachedSectionData (eSectionTypeDWARFAppleObjC, m_data_apple_objc);
 }
 
 
@@ -889,6 +817,9 @@ SymbolFileDWARF::DebugInfo() const
 DWARFCompileUnit*
 SymbolFileDWARF::GetDWARFCompileUnit(lldb_private::CompileUnit *comp_unit)
 {
+    if (!comp_unit)
+        return nullptr;
+
     DWARFDebugInfo* info = DebugInfo();
     if (info)
     {
@@ -900,7 +831,7 @@ SymbolFileDWARF::GetDWARFCompileUnit(lldb_private::CompileUnit *comp_unit)
             // TODO: modify to support LTO .o files where each .o file might
             // have multiple DW_TAG_compile_unit tags.
             
-            DWARFCompileUnit *dwarf_cu = info->GetCompileUnit(0).get();
+            DWARFCompileUnit *dwarf_cu = info->GetCompileUnit(0);
             if (dwarf_cu && dwarf_cu->GetUserData() == NULL)
                 dwarf_cu->SetUserData(comp_unit);
             return dwarf_cu;
@@ -910,7 +841,7 @@ SymbolFileDWARF::GetDWARFCompileUnit(lldb_private::CompileUnit *comp_unit)
             // Just a normal DWARF file whose user ID for the compile unit is
             // the DWARF offset itself
 
-            DWARFCompileUnit *dwarf_cu = info->GetCompileUnit((dw_offset_t)comp_unit->GetID()).get();
+            DWARFCompileUnit *dwarf_cu = info->GetCompileUnit((dw_offset_t)comp_unit->GetID());
             if (dwarf_cu && dwarf_cu->GetUserData() == NULL)
                 dwarf_cu->SetUserData(comp_unit);
             return dwarf_cu;
@@ -958,7 +889,11 @@ SymbolFileDWARF::ParseCompileUnit (DWARFCompileUnit* dwarf_cu, uint32_t cu_idx)
         }
         else
         {
-            if (GetDebugMapSymfile ())
+            if (dwarf_cu->GetSymbolFileDWARF() != this)
+            {
+                return dwarf_cu->GetSymbolFileDWARF()->ParseCompileUnit(dwarf_cu, cu_idx);
+            }
+            else if (GetDebugMapSymfile ())
             {
                 // Let the debug map create the compile unit
                 cu_sp = m_debug_map_symfile->GetCompileUnit(this);
@@ -969,20 +904,18 @@ SymbolFileDWARF::ParseCompileUnit (DWARFCompileUnit* dwarf_cu, uint32_t cu_idx)
                 ModuleSP module_sp (m_obj_file->GetModule());
                 if (module_sp)
                 {
-                    const DWARFDebugInfoEntry * cu_die = dwarf_cu->GetCompileUnitDIEOnly ();
+                    const DWARFDIE cu_die = dwarf_cu->GetCompileUnitDIEOnly ();
                     if (cu_die)
                     {
-                        FileSpec cu_file_spec{cu_die->GetName(this, dwarf_cu), false};
+                        FileSpec cu_file_spec{cu_die.GetName(), false};
                         if (cu_file_spec)
                         {
                             // If we have a full path to the compile unit, we don't need to resolve
                             // the file.  This can be expensive e.g. when the source files are NFS mounted.
                             if (cu_file_spec.IsRelative())
                             {
-                                // DWARF2/3 suggests the form hostname:pathname for compilation directory.
-                                // Remove the host part if present.
-                                const char *cu_comp_dir{cu_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_comp_dir, nullptr)};
-                                cu_file_spec.PrependPathComponent(removeHostnameFromPathname(cu_comp_dir));
+                                const char *cu_comp_dir{cu_die.GetAttributeValueAsString(DW_AT_comp_dir, nullptr)};
+                                cu_file_spec.PrependPathComponent(resolveCompDir(cu_comp_dir));
                             }
 
                             std::string remapped_file;
@@ -990,13 +923,15 @@ SymbolFileDWARF::ParseCompileUnit (DWARFCompileUnit* dwarf_cu, uint32_t cu_idx)
                                 cu_file_spec.SetFile(remapped_file, false);
                         }
 
-                        LanguageType cu_language = DWARFCompileUnit::LanguageTypeFromDWARF(cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_language, 0));
+                        LanguageType cu_language = DWARFCompileUnit::LanguageTypeFromDWARF(cu_die.GetAttributeValueAsUnsigned(DW_AT_language, 0));
 
+                        bool is_optimized = dwarf_cu->GetIsOptimized ();
                         cu_sp.reset(new CompileUnit (module_sp,
                                                      dwarf_cu,
                                                      cu_file_spec, 
-                                                     MakeUserID(dwarf_cu->GetOffset()),
-                                                     cu_language));
+                                                     dwarf_cu->GetID(),
+                                                     cu_language,
+                                                     is_optimized));
                         if (cu_sp)
                         {
                             // If we just created a compile unit with an invalid file spec, try and get the
@@ -1053,137 +988,20 @@ SymbolFileDWARF::ParseCompileUnitAtIndex(uint32_t cu_idx)
 }
 
 Function *
-SymbolFileDWARF::ParseCompileUnitFunction (const SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die)
+SymbolFileDWARF::ParseCompileUnitFunction (const SymbolContext& sc, const DWARFDIE &die)
 {
-    DWARFDebugRanges::RangeList func_ranges;
-    const char *name = NULL;
-    const char *mangled = NULL;
-    int decl_file = 0;
-    int decl_line = 0;
-    int decl_column = 0;
-    int call_file = 0;
-    int call_line = 0;
-    int call_column = 0;
-    DWARFExpression frame_base;
-
-    assert (die->Tag() == DW_TAG_subprogram);
-    
-    if (die->Tag() != DW_TAG_subprogram)
-        return NULL;
-
-    if (die->GetDIENamesAndRanges (this, 
-                                   dwarf_cu, 
-                                   name, 
-                                   mangled, 
-                                   func_ranges, 
-                                   decl_file, 
-                                   decl_line, 
-                                   decl_column, 
-                                   call_file, 
-                                   call_line, 
-                                   call_column, 
-                                   &frame_base))
+    if (die.IsValid())
     {
-        // Union of all ranges in the function DIE (if the function is discontiguous)
-        AddressRange func_range;
-        lldb::addr_t lowest_func_addr = func_ranges.GetMinRangeBase (0);
-        lldb::addr_t highest_func_addr = func_ranges.GetMaxRangeEnd (0);
-        if (lowest_func_addr != LLDB_INVALID_ADDRESS && lowest_func_addr <= highest_func_addr)
-        {
-            ModuleSP module_sp (m_obj_file->GetModule());
-            func_range.GetBaseAddress().ResolveAddressUsingFileSections (lowest_func_addr, module_sp->GetSectionList());
-            if (func_range.GetBaseAddress().IsValid())
-                func_range.SetByteSize(highest_func_addr - lowest_func_addr);
-        }
+        TypeSystem *type_system = GetTypeSystemForLanguage(die.GetCU()->GetLanguageType());
 
-        if (func_range.GetBaseAddress().IsValid())
+        if (type_system)
         {
-            Mangled func_name;
-            if (mangled)
-                func_name.SetValue(ConstString(mangled), true);
-            else if (die->GetParent()->Tag() == DW_TAG_compile_unit &&
-                     LanguageRuntime::LanguageIsCPlusPlus(dwarf_cu->GetLanguageType()) &&
-                     name && strcmp(name, "main") != 0)
-            {
-                // If the mangled name is not present in the DWARF, generate the demangled name
-                // using the decl context. We skip if the function is "main" as its name is
-                // never mangled.
-                bool is_static = false;
-                bool is_variadic = false;
-                unsigned type_quals = 0;
-                std::vector<ClangASTType> param_types;
-                std::vector<clang::ParmVarDecl*> param_decls;
-                const DWARFDebugInfoEntry *decl_ctx_die = NULL;
-                DWARFDeclContext decl_ctx;
-                StreamString sstr;
-
-                die->GetDWARFDeclContext(this, dwarf_cu, decl_ctx);
-                sstr << decl_ctx.GetQualifiedName();
-
-                clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE(dwarf_cu,
-                                                                                           die,
-                                                                                           &decl_ctx_die);
-                ParseChildParameters(sc,
-                                     containing_decl_ctx,
-                                     dwarf_cu,
-                                     die,
-                                     true,
-                                     is_static,
-                                     is_variadic,
-                                     param_types,
-                                     param_decls,
-                                     type_quals);
-                sstr << "(";
-                for (size_t i = 0; i < param_types.size(); i++)
-                {
-                    if (i > 0)
-                        sstr << ", ";
-                    sstr << param_types[i].GetTypeName();
-                }
-                if (is_variadic)
-                    sstr << ", ...";
-                sstr << ")";
-                if (type_quals & clang::Qualifiers::Const)
-                    sstr << " const";
-
-                func_name.SetValue(ConstString(sstr.GetData()), false);
-            }
-            else
-                func_name.SetValue(ConstString(name), false);
-
-            FunctionSP func_sp;
-            std::unique_ptr<Declaration> decl_ap;
-            if (decl_file != 0 || decl_line != 0 || decl_column != 0)
-                decl_ap.reset(new Declaration (sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(decl_file), 
-                                               decl_line, 
-                                               decl_column));
-
-            // Supply the type _only_ if it has already been parsed
-            Type *func_type = m_die_to_type.lookup (die);
-
-            assert(func_type == NULL || func_type != DIE_IS_BEING_PARSED);
-
-            if (FixupAddress (func_range.GetBaseAddress()))
-            {
-                const user_id_t func_user_id = MakeUserID(die->GetOffset());
-                func_sp.reset(new Function (sc.comp_unit,
-                                            MakeUserID(func_user_id),       // UserID is the DIE offset
-                                            MakeUserID(func_user_id),
-                                            func_name,
-                                            func_type,
-                                            func_range));           // first address range
-
-                if (func_sp.get() != NULL)
-                {
-                    if (frame_base.IsValid())
-                        func_sp->GetFrameBaseExpression() = frame_base;
-                    sc.comp_unit->AddFunction(func_sp);
-                    return func_sp.get();
-                }
-            }
+            DWARFASTParser *dwarf_ast = type_system->GetDWARFParser();
+            if (dwarf_ast)
+                return dwarf_ast->ParseFunctionFromDWARF(sc, die);
         }
     }
-    return NULL;
+    return nullptr;
 }
 
 bool
@@ -1203,12 +1021,9 @@ SymbolFileDWARF::ParseCompileUnitLanguage (const SymbolContext& sc)
     assert (sc.comp_unit);
     DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
     if (dwarf_cu)
-    {
-        const DWARFDebugInfoEntry *die = dwarf_cu->GetCompileUnitDIEOnly();
-        if (die)
-            return DWARFCompileUnit::LanguageTypeFromDWARF(die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_language, 0));
-    }
-    return eLanguageTypeUnknown;
+        return dwarf_cu->GetLanguageType();
+    else
+        return eLanguageTypeUnknown;
 }
 
 size_t
@@ -1224,10 +1039,10 @@ SymbolFileDWARF::ParseCompileUnitFunctions(const SymbolContext &sc)
         size_t func_idx;
         for (func_idx = 0; func_idx < num_functions; ++func_idx)
         {
-            const DWARFDebugInfoEntry *die = function_dies.GetDIEPtrAtIndex(func_idx);
-            if (sc.comp_unit->FindFunctionByUID (MakeUserID(die->GetOffset())).get() == NULL)
+            DWARFDIE die = function_dies.GetDIEAtIndex(func_idx);
+            if (sc.comp_unit->FindFunctionByUID (die.GetID()).get() == NULL)
             {
-                if (ParseCompileUnitFunction(sc, dwarf_cu, die))
+                if (ParseCompileUnitFunction(sc, die))
                     ++functions_added;
             }
         }
@@ -1243,17 +1058,13 @@ SymbolFileDWARF::ParseCompileUnitSupportFiles (const SymbolContext& sc, FileSpec
     DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
     if (dwarf_cu)
     {
-        const DWARFDebugInfoEntry * cu_die = dwarf_cu->GetCompileUnitDIEOnly();
+        const DWARFDIE cu_die = dwarf_cu->GetCompileUnitDIEOnly();
 
         if (cu_die)
         {
-            const char * cu_comp_dir = cu_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_comp_dir, NULL);
-
-            // DWARF2/3 suggests the form hostname:pathname for compilation directory.
-            // Remove the host part if present.
-            cu_comp_dir = removeHostnameFromPathname(cu_comp_dir);
+            const char * cu_comp_dir = resolveCompDir(cu_die.GetAttributeValueAsString(DW_AT_comp_dir, nullptr));
 
-            dw_offset_t stmt_list = cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_stmt_list, DW_INVALID_OFFSET);
+            const dw_offset_t stmt_list = cu_die.GetAttributeValueAsUnsigned(DW_AT_stmt_list, DW_INVALID_OFFSET);
 
             // All file indexes in DWARF are one based and a file of index zero is
             // supposed to be the compile unit itself.
@@ -1275,9 +1086,9 @@ SymbolFileDWARF::ParseImportedModules (const lldb_private::SymbolContext &sc, st
         if (ClangModulesDeclVendor::LanguageSupportsClangModules(sc.comp_unit->GetLanguage()))
         {
             UpdateExternalModuleListIfNeeded();
-            for (const std::pair<uint64_t, const ClangModuleInfo> &external_type_module : m_external_type_modules)
+            for (const auto &pair : m_external_type_modules)
             {
-                imported_modules.push_back(external_type_module.second.m_name);
+                imported_modules.push_back(pair.first);
             }
         }
     }
@@ -1288,6 +1099,7 @@ struct ParseDWARFLineTableCallbackInfo
 {
     LineTable* line_table;
     std::unique_ptr<LineSequence> sequence_ap;
+    lldb::addr_t addr_mask;
 };
 
 //----------------------------------------------------------------------
@@ -1317,7 +1129,7 @@ ParseDWARFLineTableCallback(dw_offset_t offset, const DWARFDebugLine::State& sta
             assert(info->sequence_ap.get());
         }
         line_table->AppendLineEntryToSequence (info->sequence_ap.get(),
-                                               state.address,
+                                               state.address & info->addr_mask,
                                                state.line,
                                                state.column,
                                                state.file,
@@ -1346,10 +1158,10 @@ SymbolFileDWARF::ParseCompileUnitLineTable (const SymbolContext &sc)
     DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
     if (dwarf_cu)
     {
-        const DWARFDebugInfoEntry *dwarf_cu_die = dwarf_cu->GetCompileUnitDIEOnly();
+        const DWARFDIE dwarf_cu_die = dwarf_cu->GetCompileUnitDIEOnly();
         if (dwarf_cu_die)
         {
-            const dw_offset_t cu_line_offset = dwarf_cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_stmt_list, DW_INVALID_OFFSET);
+            const dw_offset_t cu_line_offset = dwarf_cu_die.GetAttributeValueAsUnsigned(DW_AT_stmt_list, DW_INVALID_OFFSET);
             if (cu_line_offset != DW_INVALID_OFFSET)
             {
                 std::unique_ptr<LineTable> line_table_ap(new LineTable(sc.comp_unit));
@@ -1357,6 +1169,28 @@ SymbolFileDWARF::ParseCompileUnitLineTable (const SymbolContext &sc)
                 {
                     ParseDWARFLineTableCallbackInfo info;
                     info.line_table = line_table_ap.get();
+
+                    /*
+                     * MIPS:
+                     * The SymbolContext may not have a valid target, thus we may not be able
+                     * to call Address::GetOpcodeLoadAddress() which would clear the bit #0
+                     * for MIPS. Use ArchSpec to clear the bit #0.
+                    */
+                    ArchSpec arch;
+                    GetObjectFile()->GetArchitecture(arch);
+                    switch (arch.GetMachine())
+                    {
+                    case llvm::Triple::mips:
+                    case llvm::Triple::mipsel:
+                    case llvm::Triple::mips64:
+                    case llvm::Triple::mips64el:
+                        info.addr_mask = ~((lldb::addr_t)1);
+                        break;
+                    default:
+                        info.addr_mask = ~((lldb::addr_t)0);
+                        break;
+                    }
+
                     lldb::offset_t offset = cu_line_offset;
                     DWARFDebugLine::ParseStatementTable(get_debug_line_data(), &offset, ParseDWARFLineTableCallback, &info);
                     if (m_debug_map_symfile)
@@ -1379,21 +1213,63 @@ SymbolFileDWARF::ParseCompileUnitLineTable (const SymbolContext &sc)
     return false;
 }
 
+lldb_private::DebugMacrosSP
+SymbolFileDWARF::ParseDebugMacros(lldb::offset_t *offset)
+{
+    auto iter = m_debug_macros_map.find(*offset);
+    if (iter != m_debug_macros_map.end())
+        return iter->second;
+
+    const DWARFDataExtractor &debug_macro_data = get_debug_macro_data();
+    if (debug_macro_data.GetByteSize() == 0)
+        return DebugMacrosSP();
+
+    lldb_private::DebugMacrosSP debug_macros_sp(new lldb_private::DebugMacros());
+    m_debug_macros_map[*offset] = debug_macros_sp;
+
+    const DWARFDebugMacroHeader &header = DWARFDebugMacroHeader::ParseHeader(debug_macro_data, offset);
+    DWARFDebugMacroEntry::ReadMacroEntries(
+        debug_macro_data, get_debug_str_data(), header.OffsetIs64Bit(), offset, this, debug_macros_sp);
+
+    return debug_macros_sp;
+}
+
+bool
+SymbolFileDWARF::ParseCompileUnitDebugMacros(const SymbolContext& sc)
+{
+    assert (sc.comp_unit);
+
+    DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
+    if (dwarf_cu == nullptr)
+        return false;
+
+    const DWARFDIE dwarf_cu_die = dwarf_cu->GetCompileUnitDIEOnly();
+    if (!dwarf_cu_die)
+        return false;
+
+    lldb::offset_t sect_offset = dwarf_cu_die.GetAttributeValueAsUnsigned(DW_AT_macros, DW_INVALID_OFFSET);
+    if (sect_offset == DW_INVALID_OFFSET)
+        sect_offset = dwarf_cu_die.GetAttributeValueAsUnsigned(DW_AT_GNU_macros, DW_INVALID_OFFSET);
+    if (sect_offset == DW_INVALID_OFFSET)
+        return false;
+
+    sc.comp_unit->SetDebugMacros(ParseDebugMacros(&sect_offset));
+
+    return true;
+}
+
 size_t
-SymbolFileDWARF::ParseFunctionBlocks
-(
-    const SymbolContext& sc,
-    Block *parent_block,
-    DWARFCompileUnit* dwarf_cu,
-    const DWARFDebugInfoEntry *die,
-    addr_t subprogram_low_pc,
-    uint32_t depth
-)
+SymbolFileDWARF::ParseFunctionBlocks (const SymbolContext& sc,
+                                      Block *parent_block,
+                                      const DWARFDIE &orig_die,
+                                      addr_t subprogram_low_pc,
+                                      uint32_t depth)
 {
     size_t blocks_added = 0;
-    while (die != NULL)
+    DWARFDIE die = orig_die;
+    while (die)
     {
-        dw_tag_t tag = die->Tag();
+        dw_tag_t tag = die.Tag();
 
         switch (tag)
         {
@@ -1415,11 +1291,11 @@ SymbolFileDWARF::ParseFunctionBlocks
                 }
                 else
                 {
-                    BlockSP block_sp(new Block (MakeUserID(die->GetOffset())));
+                    BlockSP block_sp(new Block (die.GetID()));
                     parent_block->AddChild(block_sp);
                     block = block_sp.get();
                 }
-                DWARFDebugRanges::RangeList ranges;
+                DWARFRangeList ranges;
                 const char *name = NULL;
                 const char *mangled_name = NULL;
 
@@ -1429,13 +1305,11 @@ SymbolFileDWARF::ParseFunctionBlocks
                 int call_file = 0;
                 int call_line = 0;
                 int call_column = 0;
-                if (die->GetDIENamesAndRanges (this, 
-                                               dwarf_cu, 
-                                               name, 
-                                               mangled_name, 
-                                               ranges, 
-                                               decl_file, decl_line, decl_column,
-                                               call_file, call_line, call_column))
+                if (die.GetDIENamesAndRanges (name,
+                                              mangled_name,
+                                              ranges,
+                                              decl_file, decl_line, decl_column,
+                                              call_file, call_line, call_column, nullptr))
                 {
                     if (tag == DW_TAG_subprogram)
                     {
@@ -1461,7 +1335,7 @@ SymbolFileDWARF::ParseFunctionBlocks
                     const size_t num_ranges = ranges.GetSize();
                     for (size_t i = 0; i<num_ranges; ++i)
                     {
-                        const DWARFDebugRanges::Range &range = ranges.GetEntryRef (i);
+                        const DWARFRangeList::Entry &range = ranges.GetEntryRef (i);
                         const addr_t range_base = range.GetRangeBase();
                         if (range_base >= subprogram_low_pc)
                             block->AddRange(Block::Range (range_base - subprogram_low_pc, range.GetByteSize()));
@@ -1493,12 +1367,11 @@ SymbolFileDWARF::ParseFunctionBlocks
 
                     ++blocks_added;
 
-                    if (die->HasChildren())
+                    if (die.HasChildren())
                     {
                         blocks_added += ParseFunctionBlocks (sc, 
                                                              block, 
-                                                             dwarf_cu, 
-                                                             die->GetFirstChild(), 
+                                                             die.GetFirstChild(),
                                                              subprogram_low_pc, 
                                                              depth + 1);
                     }
@@ -1514,278 +1387,21 @@ SymbolFileDWARF::ParseFunctionBlocks
         // DW_TAG_subprogram DIE
         
         if (depth == 0)
-            die = NULL;
+            die.Clear();
         else
-            die = die->GetSibling();
+            die = die.GetSibling();
     }
     return blocks_added;
 }
 
 bool
-SymbolFileDWARF::ParseTemplateDIE (DWARFCompileUnit* dwarf_cu,
-                                   const DWARFDebugInfoEntry *die,
-                                   ClangASTContext::TemplateParameterInfos &template_param_infos)
-{
-    const dw_tag_t tag = die->Tag();
-    
-    switch (tag)
-    {
-    case DW_TAG_template_type_parameter:
-    case DW_TAG_template_value_parameter:
-        {
-            const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
-
-            DWARFDebugInfoEntry::Attributes attributes;
-            const size_t num_attributes = die->GetAttributes (this, 
-                                                              dwarf_cu, 
-                                                              fixed_form_sizes, 
-                                                              attributes);
-            const char *name = NULL;
-            Type *lldb_type = NULL;
-            ClangASTType clang_type;
-            uint64_t uval64 = 0;
-            bool uval64_valid = false;
-            if (num_attributes > 0)
-            {
-                DWARFFormValue form_value;
-                for (size_t i=0; i<num_attributes; ++i)
-                {
-                    const dw_attr_t attr = attributes.AttributeAtIndex(i);
-                    
-                    switch (attr)
-                    {
-                        case DW_AT_name:
-                            if (attributes.ExtractFormValueAtIndex(this, i, form_value))
-                                name = form_value.AsCString(&get_debug_str_data());
-                            break;
-                            
-                        case DW_AT_type:
-                            if (attributes.ExtractFormValueAtIndex(this, i, form_value))
-                            {
-                                const dw_offset_t type_die_offset = form_value.Reference();
-                                lldb_type = ResolveTypeUID(type_die_offset);
-                                if (lldb_type)
-                                    clang_type = lldb_type->GetClangForwardType();
-                            }
-                            break;
-                            
-                        case DW_AT_const_value:
-                            if (attributes.ExtractFormValueAtIndex(this, i, form_value))
-                            {
-                                uval64_valid = true;
-                                uval64 = form_value.Unsigned();
-                            }
-                            break;
-                        default:
-                            break;
-                    }
-                }
-                
-                clang::ASTContext *ast = GetClangASTContext().getASTContext();
-                if (!clang_type)
-                    clang_type = GetClangASTContext().GetBasicType(eBasicTypeVoid);
-
-                if (clang_type)
-                {
-                    bool is_signed = false;
-                    if (name && name[0])
-                        template_param_infos.names.push_back(name);
-                    else
-                        template_param_infos.names.push_back(NULL);
-    
-                    if (tag == DW_TAG_template_value_parameter &&
-                        lldb_type != NULL &&
-                        clang_type.IsIntegerType (is_signed) &&
-                        uval64_valid)
-                    {
-                        llvm::APInt apint (lldb_type->GetByteSize() * 8, uval64, is_signed);
-                        template_param_infos.args.push_back (clang::TemplateArgument (*ast,
-                                                                                      llvm::APSInt(apint),
-                                                                                      clang_type.GetQualType()));
-                    }
-                    else
-                    {
-                        template_param_infos.args.push_back (clang::TemplateArgument (clang_type.GetQualType()));
-                    }
-                }
-                else
-                {
-                    return false;
-                }
-                
-            }
-        }
-        return true;
-
-    default:
-        break;
-    }
-    return false;
-}
-
-bool
-SymbolFileDWARF::ParseTemplateParameterInfos (DWARFCompileUnit* dwarf_cu,
-                                              const DWARFDebugInfoEntry *parent_die,
-                                              ClangASTContext::TemplateParameterInfos &template_param_infos)
-{
-
-    if (parent_die == NULL)
-        return false;
-    
-    Args template_parameter_names;
-    for (const DWARFDebugInfoEntry *die = parent_die->GetFirstChild(); 
-         die != NULL; 
-         die = die->GetSibling())
-    {
-        const dw_tag_t tag = die->Tag();
-        
-        switch (tag)
-        {
-            case DW_TAG_template_type_parameter:
-            case DW_TAG_template_value_parameter:
-                ParseTemplateDIE (dwarf_cu, die, template_param_infos);
-            break;
-                
-        default:
-            break;
-        }
-    }
-    if (template_param_infos.args.empty())
-        return false;
-    return template_param_infos.args.size() == template_param_infos.names.size();
-}
-
-clang::ClassTemplateDecl *
-SymbolFileDWARF::ParseClassTemplateDecl (clang::DeclContext *decl_ctx,
-                                         lldb::AccessType access_type,
-                                         const char *parent_name,
-                                         int tag_decl_kind,
-                                         const ClangASTContext::TemplateParameterInfos &template_param_infos)
-{
-    if (template_param_infos.IsValid())
-    {
-        std::string template_basename(parent_name);
-        template_basename.erase (template_basename.find('<'));
-        ClangASTContext &ast = GetClangASTContext();
-
-        return ast.CreateClassTemplateDecl (decl_ctx,
-                                            access_type,
-                                            template_basename.c_str(), 
-                                            tag_decl_kind, 
-                                            template_param_infos);
-    }
-    return NULL;
-}
-
-class SymbolFileDWARF::DelayedAddObjCClassProperty
-{
-public:
-    DelayedAddObjCClassProperty
-    (
-        const ClangASTType     &class_opaque_type,
-        const char             *property_name,
-        const ClangASTType     &property_opaque_type,  // The property type is only required if you don't have an ivar decl
-        clang::ObjCIvarDecl    *ivar_decl,   
-        const char             *property_setter_name,
-        const char             *property_getter_name,
-        uint32_t                property_attributes,
-        const ClangASTMetadata *metadata
-    ) :
-        m_class_opaque_type     (class_opaque_type),
-        m_property_name         (property_name),
-        m_property_opaque_type  (property_opaque_type),
-        m_ivar_decl             (ivar_decl),
-        m_property_setter_name  (property_setter_name),
-        m_property_getter_name  (property_getter_name),
-        m_property_attributes   (property_attributes)
-    {
-        if (metadata != NULL)
-        {
-            m_metadata_ap.reset(new ClangASTMetadata());
-            *m_metadata_ap = *metadata;
-        }
-    }
-    
-    DelayedAddObjCClassProperty (const DelayedAddObjCClassProperty &rhs)
-    {
-        *this = rhs;
-    }
-
-    DelayedAddObjCClassProperty& operator= (const DelayedAddObjCClassProperty &rhs)
-    {
-        m_class_opaque_type    = rhs.m_class_opaque_type;
-        m_property_name        = rhs.m_property_name;
-        m_property_opaque_type = rhs.m_property_opaque_type;
-        m_ivar_decl            = rhs.m_ivar_decl;
-        m_property_setter_name = rhs.m_property_setter_name;
-        m_property_getter_name = rhs.m_property_getter_name;
-        m_property_attributes  = rhs.m_property_attributes;
-        
-        if (rhs.m_metadata_ap.get())
-        {
-            m_metadata_ap.reset (new ClangASTMetadata());
-            *m_metadata_ap = *rhs.m_metadata_ap;
-        }
-        return *this;
-    }
-    
-    bool
-    Finalize()
-    {
-        return m_class_opaque_type.AddObjCClassProperty (m_property_name,
-                                                         m_property_opaque_type,
-                                                         m_ivar_decl,
-                                                         m_property_setter_name,
-                                                         m_property_getter_name,
-                                                         m_property_attributes,
-                                                         m_metadata_ap.get());
-    }
-private:
-    ClangASTType            m_class_opaque_type;
-    const char             *m_property_name;
-    ClangASTType            m_property_opaque_type;
-    clang::ObjCIvarDecl    *m_ivar_decl;
-    const char             *m_property_setter_name;
-    const char             *m_property_getter_name;
-    uint32_t                m_property_attributes;
-    std::unique_ptr<ClangASTMetadata> m_metadata_ap;
-};
-
-struct BitfieldInfo
-{
-    uint64_t bit_size;
-    uint64_t bit_offset;
-    
-    BitfieldInfo () :
-        bit_size (LLDB_INVALID_ADDRESS),
-        bit_offset (LLDB_INVALID_ADDRESS)
-    {
-    }
-    
-    void
-    Clear()
-    {
-        bit_size = LLDB_INVALID_ADDRESS;
-        bit_offset = LLDB_INVALID_ADDRESS;
-    }
-
-    bool IsValid ()
-    {
-        return (bit_size != LLDB_INVALID_ADDRESS) &&
-               (bit_offset != LLDB_INVALID_ADDRESS);
-    }
-};
-
-
-bool
-SymbolFileDWARF::ClassOrStructIsVirtual (DWARFCompileUnit* dwarf_cu,
-                                         const DWARFDebugInfoEntry *parent_die)
+SymbolFileDWARF::ClassOrStructIsVirtual (const DWARFDIE &parent_die)
 {
     if (parent_die)
     {
-        for (const DWARFDebugInfoEntry *die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
+        for (DWARFDIE die = parent_die.GetFirstChild(); die; die = die.GetSibling())
         {
-            dw_tag_t tag = die->Tag();
+            dw_tag_t tag = die.Tag();
             bool check_virtuality = false;
             switch (tag)
             {
@@ -1798,7 +1414,7 @@ SymbolFileDWARF::ClassOrStructIsVirtual (DWARFCompileUnit* dwarf_cu,
             }
             if (check_virtuality)
             {
-                if (die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_virtuality, 0) != 0)
+                if (die.GetAttributeValueAsUnsigned(DW_AT_virtuality, 0) != 0)
                     return true;
             }
         }
@@ -1806,602 +1422,79 @@ SymbolFileDWARF::ClassOrStructIsVirtual (DWARFCompileUnit* dwarf_cu,
     return false;
 }
 
-size_t
-SymbolFileDWARF::ParseChildMembers
-(
-    const SymbolContext& sc,
-    DWARFCompileUnit* dwarf_cu,
-    const DWARFDebugInfoEntry *parent_die,
-    ClangASTType &class_clang_type,
-    const LanguageType class_language,
-    std::vector<clang::CXXBaseSpecifier *>& base_classes,
-    std::vector<int>& member_accessibilities,
-    DWARFDIECollection& member_function_dies,
-    DelayedPropertyList& delayed_properties,
-    AccessType& default_accessibility,
-    bool &is_a_class,
-    LayoutInfo &layout_info
-)
+void
+SymbolFileDWARF::ParseDeclsForContext (CompilerDeclContext decl_ctx)
 {
-    if (parent_die == NULL)
-        return 0;
+    TypeSystem *type_system = decl_ctx.GetTypeSystem();
+    DWARFASTParser *ast_parser = type_system->GetDWARFParser();
+    std::vector<DWARFDIE> decl_ctx_die_list = ast_parser->GetDIEForDeclContext(decl_ctx);
 
-    size_t count = 0;
-    const DWARFDebugInfoEntry *die;
-    const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
-    uint32_t member_idx = 0;
-    BitfieldInfo last_field_info;
-    ModuleSP module = GetObjectFile()->GetModule();
+    for (DWARFDIE decl_ctx_die : decl_ctx_die_list)
+        for (DWARFDIE decl = decl_ctx_die.GetFirstChild(); decl; decl = decl.GetSibling())
+            ast_parser->GetDeclForUIDFromDWARF(decl);
+}
 
-    for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
+CompilerDecl
+SymbolFileDWARF::GetDeclForUID (lldb::user_id_t type_uid)
+{
+    if (UserIDMatches(type_uid))
     {
-        dw_tag_t tag = die->Tag();
-
-        switch (tag)
+        DWARFDebugInfo* debug_info = DebugInfo();
+        if (debug_info)
         {
-        case DW_TAG_member:
-        case DW_TAG_APPLE_property:
-            {
-                DWARFDebugInfoEntry::Attributes attributes;
-                const size_t num_attributes = die->GetAttributes (this, 
-                                                                  dwarf_cu, 
-                                                                  fixed_form_sizes, 
-                                                                  attributes);
-                if (num_attributes > 0)
-                {
-                    Declaration decl;
-                    //DWARFExpression location;
-                    const char *name = NULL;
-                    const char *prop_name = NULL;
-                    const char *prop_getter_name = NULL;
-                    const char *prop_setter_name = NULL;
-                    uint32_t prop_attributes = 0;
-                    
-                    
-                    bool is_artificial = false;
-                    lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
-                    AccessType accessibility = eAccessNone;
-                    uint32_t member_byte_offset = UINT32_MAX;
-                    size_t byte_size = 0;
-                    size_t bit_offset = 0;
-                    size_t bit_size = 0;
-                    bool is_external = false; // On DW_TAG_members, this means the member is static
-                    uint32_t i;
-                    for (i=0; i<num_attributes && !is_artificial; ++i)
-                    {
-                        const dw_attr_t attr = attributes.AttributeAtIndex(i);
-                        DWARFFormValue form_value;
-                        if (attributes.ExtractFormValueAtIndex(this, i, form_value))
-                        {
-                            switch (attr)
-                            {
-                            case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
-                            case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
-                            case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
-                            case DW_AT_name:        name = form_value.AsCString(&get_debug_str_data()); break;
-                            case DW_AT_type:        encoding_uid = form_value.Reference(); break;
-                            case DW_AT_bit_offset:  bit_offset = form_value.Unsigned(); break;
-                            case DW_AT_bit_size:    bit_size = form_value.Unsigned(); break;
-                            case DW_AT_byte_size:   byte_size = form_value.Unsigned(); break;
-                            case DW_AT_data_member_location:
-                                if (form_value.BlockData())
-                                {
-                                    Value initialValue(0);
-                                    Value memberOffset(0);
-                                    const DWARFDataExtractor& debug_info_data = get_debug_info_data();
-                                    uint32_t block_length = form_value.Unsigned();
-                                    uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
-                                    if (DWARFExpression::Evaluate(NULL, // ExecutionContext *
-                                                                  NULL, // ClangExpressionVariableList *
-                                                                  NULL, // ClangExpressionDeclMap *
-                                                                  NULL, // RegisterContext *
-                                                                  module,
-                                                                  debug_info_data, 
-                                                                  block_offset, 
-                                                                  block_length, 
-                                                                  eRegisterKindDWARF, 
-                                                                  &initialValue, 
-                                                                  memberOffset, 
-                                                                  NULL))
-                                    {
-                                        member_byte_offset = memberOffset.ResolveValue(NULL).UInt();
-                                    }
-                                }
-                                else
-                                {
-                                    // With DWARF 3 and later, if the value is an integer constant,
-                                    // this form value is the offset in bytes from the beginning
-                                    // of the containing entity. 
-                                    member_byte_offset = form_value.Unsigned(); 
-                                }
-                                break;
-
-                            case DW_AT_accessibility: accessibility = DW_ACCESS_to_AccessType (form_value.Unsigned()); break;
-                            case DW_AT_artificial: is_artificial = form_value.Boolean(); break;
-                            case DW_AT_APPLE_property_name:      prop_name = form_value.AsCString(&get_debug_str_data()); break;
-                            case DW_AT_APPLE_property_getter:    prop_getter_name = form_value.AsCString(&get_debug_str_data()); break;
-                            case DW_AT_APPLE_property_setter:    prop_setter_name = form_value.AsCString(&get_debug_str_data()); break;
-                            case DW_AT_APPLE_property_attribute: prop_attributes = form_value.Unsigned(); break;
-                            case DW_AT_external:                 is_external = form_value.Boolean(); break;
-
-                            default:
-                            case DW_AT_declaration:
-                            case DW_AT_description:
-                            case DW_AT_mutable:
-                            case DW_AT_visibility:
-                            case DW_AT_sibling:
-                                break;
-                            }
-                        }
-                    }
-                                        
-                    if (prop_name)
-                    {
-                        ConstString fixed_getter;
-                        ConstString fixed_setter;
-
-                        // Check if the property getter/setter were provided as full
-                        // names.  We want basenames, so we extract them.
-                        
-                        if (prop_getter_name && prop_getter_name[0] == '-')
-                        {
-                            ObjCLanguageRuntime::MethodName prop_getter_method(prop_getter_name, true);
-                            prop_getter_name = prop_getter_method.GetSelector().GetCString();
-                        }
-                        
-                        if (prop_setter_name && prop_setter_name[0] == '-')
-                        {
-                            ObjCLanguageRuntime::MethodName prop_setter_method(prop_setter_name, true);
-                            prop_setter_name = prop_setter_method.GetSelector().GetCString();
-                        }
-                        
-                        // If the names haven't been provided, they need to be
-                        // filled in.
-                        
-                        if (!prop_getter_name)
-                        {
-                            prop_getter_name = prop_name;
-                        }
-                        if (!prop_setter_name && prop_name[0] && !(prop_attributes & DW_APPLE_PROPERTY_readonly))
-                        {
-                            StreamString ss;
-                            
-                            ss.Printf("set%c%s:",
-                                      toupper(prop_name[0]),
-                                      &prop_name[1]);
-                            
-                            fixed_setter.SetCString(ss.GetData());
-                            prop_setter_name = fixed_setter.GetCString();
-                        }
-                    }
-                    
-                    // Clang has a DWARF generation bug where sometimes it
-                    // represents fields that are references with bad byte size
-                    // and bit size/offset information such as:
-                    //
-                    //  DW_AT_byte_size( 0x00 )
-                    //  DW_AT_bit_size( 0x40 )
-                    //  DW_AT_bit_offset( 0xffffffffffffffc0 )
-                    //
-                    // So check the bit offset to make sure it is sane, and if 
-                    // the values are not sane, remove them. If we don't do this
-                    // then we will end up with a crash if we try to use this 
-                    // type in an expression when clang becomes unhappy with its
-                    // recycled debug info.
-                    
-                    if (bit_offset > 128)
-                    {
-                        bit_size = 0;
-                        bit_offset = 0;
-                    }
-
-                    // FIXME: Make Clang ignore Objective-C accessibility for expressions
-                    if (class_language == eLanguageTypeObjC ||
-                        class_language == eLanguageTypeObjC_plus_plus)
-                        accessibility = eAccessNone; 
-                    
-                    if (member_idx == 0 && !is_artificial && name && (strstr (name, "_vptr$") == name))
-                    {
-                        // Not all compilers will mark the vtable pointer
-                        // member as artificial (llvm-gcc). We can't have
-                        // the virtual members in our classes otherwise it
-                        // throws off all child offsets since we end up
-                        // having and extra pointer sized member in our 
-                        // class layouts.
-                        is_artificial = true;
-                    }
-
-                    // Handle static members
-                    if (is_external && member_byte_offset == UINT32_MAX)
-                    {
-                        Type *var_type = ResolveTypeUID(encoding_uid);
-
-                        if (var_type)
-                        {
-                            if (accessibility == eAccessNone)
-                                accessibility = eAccessPublic;
-                            class_clang_type.AddVariableToRecordType (name,
-                                                                      var_type->GetClangLayoutType(),
-                                                                      accessibility);
-                        }
-                        break;
-                    }
-
-                    if (is_artificial == false)
-                    {
-                        Type *member_type = ResolveTypeUID(encoding_uid);
-                        
-                        clang::FieldDecl *field_decl = NULL;
-                        if (tag == DW_TAG_member)
-                        {
-                            if (member_type)
-                            {
-                                if (accessibility == eAccessNone)
-                                    accessibility = default_accessibility;
-                                member_accessibilities.push_back(accessibility);
-                                
-                                uint64_t field_bit_offset = (member_byte_offset == UINT32_MAX ? 0 : (member_byte_offset * 8));
-                                if (bit_size > 0)
-                                {
-                                    
-                                    BitfieldInfo this_field_info;
-                                    this_field_info.bit_offset = field_bit_offset;
-                                    this_field_info.bit_size = bit_size;
-                                    
-                                    /////////////////////////////////////////////////////////////
-                                    // How to locate a field given the DWARF debug information
-                                    //
-                                    // AT_byte_size indicates the size of the word in which the
-                                    // bit offset must be interpreted.
-                                    //
-                                    // AT_data_member_location indicates the byte offset of the
-                                    // word from the base address of the structure.
-                                    //
-                                    // AT_bit_offset indicates how many bits into the word
-                                    // (according to the host endianness) the low-order bit of
-                                    // the field starts.  AT_bit_offset can be negative.
-                                    //
-                                    // AT_bit_size indicates the size of the field in bits.
-                                    /////////////////////////////////////////////////////////////
-                                    
-                                    if (byte_size == 0)
-                                        byte_size = member_type->GetByteSize();
-                                        
-                                    if (GetObjectFile()->GetByteOrder() == eByteOrderLittle)
-                                    {
-                                        this_field_info.bit_offset += byte_size * 8;
-                                        this_field_info.bit_offset -= (bit_offset + bit_size);
-                                    }
-                                    else
-                                    {
-                                        this_field_info.bit_offset += bit_offset;
-                                    }
-                                    
-                                    // Update the field bit offset we will report for layout
-                                    field_bit_offset = this_field_info.bit_offset;
-
-                                    // If the member to be emitted did not start on a character boundary and there is
-                                    // empty space between the last field and this one, then we need to emit an
-                                    // anonymous member filling up the space up to its start.  There are three cases
-                                    // here:
-                                    //
-                                    // 1 If the previous member ended on a character boundary, then we can emit an
-                                    //   anonymous member starting at the most recent character boundary.
-                                    //
-                                    // 2 If the previous member did not end on a character boundary and the distance
-                                    //   from the end of the previous member to the current member is less than a
-                                    //   word width, then we can emit an anonymous member starting right after the
-                                    //   previous member and right before this member.
-                                    //
-                                    // 3 If the previous member did not end on a character boundary and the distance
-                                    //   from the end of the previous member to the current member is greater than
-                                    //   or equal a word width, then we act as in Case 1.
-                                    
-                                    const uint64_t character_width = 8;
-                                    const uint64_t word_width = 32;
-                                    
-                                    // Objective-C has invalid DW_AT_bit_offset values in older versions
-                                    // of clang, so we have to be careful and only insert unnamed bitfields
-                                    // if we have a new enough clang.
-                                    bool detect_unnamed_bitfields = true;
-                                    
-                                    if (class_language == eLanguageTypeObjC || class_language == eLanguageTypeObjC_plus_plus)
-                                        detect_unnamed_bitfields = dwarf_cu->Supports_unnamed_objc_bitfields ();
-                                    
-                                    if (detect_unnamed_bitfields)
-                                    {
-                                        BitfieldInfo anon_field_info;
-                                        
-                                        if ((this_field_info.bit_offset % character_width) != 0) // not char aligned
-                                        {
-                                            uint64_t last_field_end = 0;
-                                            
-                                            if (last_field_info.IsValid())
-                                                last_field_end = last_field_info.bit_offset + last_field_info.bit_size;
-                                            
-                                            if (this_field_info.bit_offset != last_field_end)
-                                            {                                                
-                                                if (((last_field_end % character_width) == 0) ||                    // case 1
-                                                    (this_field_info.bit_offset - last_field_end >= word_width))    // case 3
-                                                {
-                                                    anon_field_info.bit_size = this_field_info.bit_offset % character_width;
-                                                    anon_field_info.bit_offset = this_field_info.bit_offset - anon_field_info.bit_size;
-                                                }
-                                                else                                                                // case 2
-                                                {
-                                                    anon_field_info.bit_size = this_field_info.bit_offset - last_field_end;
-                                                    anon_field_info.bit_offset = last_field_end;
-                                                }
-                                            }
-                                        }
-                                        
-                                        if (anon_field_info.IsValid())
-                                        {
-                                            clang::FieldDecl *unnamed_bitfield_decl = class_clang_type.AddFieldToRecordType (NULL,
-                                                                                                                             GetClangASTContext().GetBuiltinTypeForEncodingAndBitSize(eEncodingSint, word_width),
-                                                                                                                             accessibility,
-                                                                                                                             anon_field_info.bit_size);
-
-                                            layout_info.field_offsets.insert(
-                                                std::make_pair(unnamed_bitfield_decl, anon_field_info.bit_offset));
-                                        }
-                                    }
-                                    last_field_info = this_field_info;
-                                }
-                                else
-                                {
-                                    last_field_info.Clear();
-                                }
-                                
-                                ClangASTType member_clang_type = member_type->GetClangLayoutType();
-                                
-                                {
-                                    // Older versions of clang emit array[0] and array[1] in the same way (<rdar://problem/12566646>).
-                                    // If the current field is at the end of the structure, then there is definitely no room for extra
-                                    // elements and we override the type to array[0].
-                                    
-                                    ClangASTType member_array_element_type;
-                                    uint64_t member_array_size;
-                                    bool member_array_is_incomplete;
-                                    
-                                    if (member_clang_type.IsArrayType(&member_array_element_type,
-                                                                      &member_array_size,
-                                                                      &member_array_is_incomplete) &&
-                                        !member_array_is_incomplete)
-                                    {
-                                        uint64_t parent_byte_size = parent_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_byte_size, UINT64_MAX);
-                                    
-                                        if (member_byte_offset >= parent_byte_size)
-                                        {
-                                            if (member_array_size != 1)
-                                            {
-                                                GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64 " which extends beyond the bounds of 0x%8.8" PRIx64,
-                                                                                           MakeUserID(die->GetOffset()),
-                                                                                           name,
-                                                                                           encoding_uid,
-                                                                                           MakeUserID(parent_die->GetOffset()));
-                                            }
-                                            
-                                            member_clang_type = GetClangASTContext().CreateArrayType(member_array_element_type, 0, false);
-                                        }
-                                    }
-                                }
-                                
-                                field_decl = class_clang_type.AddFieldToRecordType (name,
-                                                                                    member_clang_type,
-                                                                                    accessibility,
-                                                                                    bit_size);
-                                
-                                GetClangASTContext().SetMetadataAsUserID (field_decl, MakeUserID(die->GetOffset()));
-
-                                layout_info.field_offsets.insert(std::make_pair(field_decl, field_bit_offset));
-                            }
-                            else
-                            {
-                                if (name)
-                                    GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64 " which was unable to be parsed",
-                                                                               MakeUserID(die->GetOffset()),
-                                                                               name,
-                                                                               encoding_uid);
-                                else
-                                    GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member refers to type 0x%8.8" PRIx64 " which was unable to be parsed",
-                                                                               MakeUserID(die->GetOffset()),
-                                                                               encoding_uid);
-                            }
-                        }
-                        
-                        if (prop_name != NULL && member_type)
-                        {
-                            clang::ObjCIvarDecl *ivar_decl = NULL;
-                            
-                            if (field_decl)
-                            {
-                                ivar_decl = clang::dyn_cast<clang::ObjCIvarDecl>(field_decl);
-                                assert (ivar_decl != NULL);
-                            }
-                            
-                            ClangASTMetadata metadata;
-                            metadata.SetUserID (MakeUserID(die->GetOffset()));
-                            delayed_properties.push_back(DelayedAddObjCClassProperty(class_clang_type,
-                                                                                     prop_name,
-                                                                                     member_type->GetClangLayoutType(),
-                                                                                     ivar_decl,
-                                                                                     prop_setter_name,
-                                                                                     prop_getter_name,
-                                                                                     prop_attributes,
-                                                                                     &metadata));
-                            
-                            if (ivar_decl)
-                                GetClangASTContext().SetMetadataAsUserID (ivar_decl, MakeUserID(die->GetOffset()));
-                        }
-                    }
-                }
-                ++member_idx;
-            }
-            break;
-
-        case DW_TAG_subprogram:
-            // Let the type parsing code handle this one for us. 
-            member_function_dies.Append (die);
-            break;
-
-        case DW_TAG_inheritance:
+            DWARFDIE die = debug_info->GetDIE(DIERef(type_uid));
+            if (die)
             {
-                is_a_class = true;
-                if (default_accessibility == eAccessNone)
-                    default_accessibility = eAccessPrivate;
-                // TODO: implement DW_TAG_inheritance type parsing
-                DWARFDebugInfoEntry::Attributes attributes;
-                const size_t num_attributes = die->GetAttributes (this, 
-                                                                  dwarf_cu, 
-                                                                  fixed_form_sizes, 
-                                                                  attributes);
-                if (num_attributes > 0)
-                {
-                    Declaration decl;
-                    DWARFExpression location;
-                    lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
-                    AccessType accessibility = default_accessibility;
-                    bool is_virtual = false;
-                    bool is_base_of_class = true;
-                    off_t member_byte_offset = 0;
-                    uint32_t i;
-                    for (i=0; i<num_attributes; ++i)
-                    {
-                        const dw_attr_t attr = attributes.AttributeAtIndex(i);
-                        DWARFFormValue form_value;
-                        if (attributes.ExtractFormValueAtIndex(this, i, form_value))
-                        {
-                            switch (attr)
-                            {
-                            case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
-                            case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
-                            case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
-                            case DW_AT_type:        encoding_uid = form_value.Reference(); break;
-                            case DW_AT_data_member_location:
-                                if (form_value.BlockData())
-                                {
-                                    Value initialValue(0);
-                                    Value memberOffset(0);
-                                    const DWARFDataExtractor& debug_info_data = get_debug_info_data();
-                                    uint32_t block_length = form_value.Unsigned();
-                                    uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
-                                    if (DWARFExpression::Evaluate (NULL, 
-                                                                   NULL, 
-                                                                   NULL, 
-                                                                   NULL,
-                                                                   module,
-                                                                   debug_info_data, 
-                                                                   block_offset, 
-                                                                   block_length, 
-                                                                   eRegisterKindDWARF, 
-                                                                   &initialValue, 
-                                                                   memberOffset, 
-                                                                   NULL))
-                                    {
-                                        member_byte_offset = memberOffset.ResolveValue(NULL).UInt();
-                                    }
-                                }
-                                else
-                                {
-                                    // With DWARF 3 and later, if the value is an integer constant,
-                                    // this form value is the offset in bytes from the beginning
-                                    // of the containing entity. 
-                                    member_byte_offset = form_value.Unsigned(); 
-                                }
-                                break;
-
-                            case DW_AT_accessibility:
-                                accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned());
-                                break;
-
-                            case DW_AT_virtuality:
-                                is_virtual = form_value.Boolean();
-                                break;
-                                                   
-                            case DW_AT_sibling:
-                                break;
-
-                            default:
-                                break;
-                            }
-                        }
-                    }
-
-                    Type *base_class_type = ResolveTypeUID(encoding_uid);
-                    if (base_class_type == NULL)
-                    {
-                        GetObjectFile()->GetModule()->ReportError("0x%8.8x: DW_TAG_inheritance failed to resolve the base class at 0x%8.8" PRIx64 " from enclosing type 0x%8.8x. \nPlease file a bug and attach the file at the start of this error message",
-                                                                  die->GetOffset(),
-                                                                  encoding_uid,
-                                                                  parent_die->GetOffset());
-                        break;
-                    }
-
-                    ClangASTType base_class_clang_type = base_class_type->GetClangFullType();
-                    assert (base_class_clang_type);
-                    if (class_language == eLanguageTypeObjC)
-                    {
-                        class_clang_type.SetObjCSuperClass(base_class_clang_type);
-                    }
-                    else
-                    {
-                        base_classes.push_back (base_class_clang_type.CreateBaseClassSpecifier (accessibility,
-                                                                                               is_virtual, 
-                                                                                               is_base_of_class));
-                        
-                        if (is_virtual)
-                        {
-                            // Do not specify any offset for virtual inheritance. The DWARF produced by clang doesn't
-                            // give us a constant offset, but gives us a DWARF expressions that requires an actual object
-                            // in memory. the DW_AT_data_member_location for a virtual base class looks like:
-                            //      DW_AT_data_member_location( DW_OP_dup, DW_OP_deref, DW_OP_constu(0x00000018), DW_OP_minus, DW_OP_deref, DW_OP_plus )
-                            // Given this, there is really no valid response we can give to clang for virtual base
-                            // class offsets, and this should eventually be removed from LayoutRecordType() in the external
-                            // AST source in clang.
-                        }
-                        else
-                        {
-                            layout_info.base_offsets.insert(
-                                std::make_pair(base_class_clang_type.GetAsCXXRecordDecl(),
-                                               clang::CharUnits::fromQuantity(member_byte_offset)));
-                        }
-                    }
-                }
+                DWARFASTParser *dwarf_ast = die.GetDWARFParser();
+                if (dwarf_ast)
+                    return dwarf_ast->GetDeclForUIDFromDWARF(die);
             }
-            break;
-
-        default:
-            break;
         }
     }
-    
-    return count;
+    return CompilerDecl();
 }
 
-
-clang::DeclContext*
-SymbolFileDWARF::GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid)
+CompilerDeclContext
+SymbolFileDWARF::GetDeclContextForUID (lldb::user_id_t type_uid)
 {
-    DWARFDebugInfo* debug_info = DebugInfo();
-    if (debug_info && UserIDMatches(type_uid))
+    if (UserIDMatches(type_uid))
     {
-        DWARFCompileUnitSP cu_sp;
-        const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(type_uid, &cu_sp);
-        if (die)
-            return GetClangDeclContextContainingDIE (cu_sp.get(), die, NULL);
+        DWARFDebugInfo* debug_info = DebugInfo();
+        if (debug_info)
+        {
+            DWARFDIE die = debug_info->GetDIE(DIERef(type_uid));
+            if (die)
+            {
+                DWARFASTParser *dwarf_ast = die.GetDWARFParser();
+                if (dwarf_ast)
+                    return dwarf_ast->GetDeclContextForUIDFromDWARF(die);
+            }
+        }
     }
-    return NULL;
+    return CompilerDeclContext();
 }
 
-clang::DeclContext*
-SymbolFileDWARF::GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid)
+CompilerDeclContext
+SymbolFileDWARF::GetDeclContextContainingUID (lldb::user_id_t type_uid)
 {
     if (UserIDMatches(type_uid))
-        return GetClangDeclContextForDIEOffset (sc, type_uid);
-    return NULL;
+    {
+        DWARFDebugInfo* debug_info = DebugInfo();
+        if (debug_info)
+        {
+            DWARFDIE die = debug_info->GetDIE(DIERef(type_uid));
+            if (die)
+            {
+                DWARFASTParser *dwarf_ast = die.GetDWARFParser();
+                if (dwarf_ast)
+                    return dwarf_ast->GetDeclContextContainingUIDFromDWARF(die);
+            }
+        }
+    }
+    return CompilerDeclContext();
 }
 
+
 Type*
 SymbolFileDWARF::ResolveTypeUID (lldb::user_id_t type_uid)
 {
@@ -2410,418 +1503,143 @@ SymbolFileDWARF::ResolveTypeUID (lldb::user_id_t type_uid)
         DWARFDebugInfo* debug_info = DebugInfo();
         if (debug_info)
         {
-            DWARFCompileUnitSP cu_sp;
-            const DWARFDebugInfoEntry* type_die = debug_info->GetDIEPtr(type_uid, &cu_sp);
-            const bool assert_not_being_parsed = true;
-            return ResolveTypeUID (cu_sp.get(), type_die, assert_not_being_parsed);
+            DWARFDIE type_die = debug_info->GetDIE (DIERef(type_uid));
+            if (type_die)
+            {
+                const bool assert_not_being_parsed = true;
+                return ResolveTypeUID (type_die, assert_not_being_parsed);
+            }
         }
     }
     return NULL;
 }
 
 Type*
-SymbolFileDWARF::ResolveTypeUID (DWARFCompileUnit* cu, const DWARFDebugInfoEntry* die, bool assert_not_being_parsed)
+SymbolFileDWARF::ResolveTypeUID (const DWARFDIE &die, bool assert_not_being_parsed)
 {    
-    if (die != NULL)
+    if (die)
     {
         Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
         if (log)
             GetObjectFile()->GetModule()->LogMessage (log,
                                                       "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s'", 
-                                                      die->GetOffset(), 
-                                                      DW_TAG_value_to_name(die->Tag()), 
-                                                      die->GetName(this, cu));
+                                                      die.GetOffset(),
+                                                      die.GetTagAsCString(),
+                                                      die.GetName());
 
         // We might be coming in in the middle of a type tree (a class
         // withing a class, an enum within a class), so parse any needed
         // parent DIEs before we get to this one...
-        const DWARFDebugInfoEntry *decl_ctx_die = GetDeclContextDIEContainingDIE (cu, die);
-        switch (decl_ctx_die->Tag())
+        DWARFDIE decl_ctx_die = GetDeclContextDIEContainingDIE (die);
+        if (decl_ctx_die)
         {
-            case DW_TAG_structure_type:
-            case DW_TAG_union_type:
-            case DW_TAG_class_type:
+            if (log)
             {
-                // Get the type, which could be a forward declaration
-                if (log)
-                    GetObjectFile()->GetModule()->LogMessage (log,
-                                                              "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent forward type for 0x%8.8x", 
-                                                              die->GetOffset(), 
-                                                              DW_TAG_value_to_name(die->Tag()), 
-                                                              die->GetName(this, cu), 
-                                                              decl_ctx_die->GetOffset());
-//
-//                Type *parent_type = ResolveTypeUID (cu, decl_ctx_die, assert_not_being_parsed);
-//                if (child_requires_parent_class_union_or_struct_to_be_completed(die->Tag()))
-//                {
-//                    if (log)
-//                        GetObjectFile()->GetModule()->LogMessage (log,
-//                                                                  "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent full type for 0x%8.8x since die is a function", 
-//                                                                  die->GetOffset(), 
-//                                                                  DW_TAG_value_to_name(die->Tag()), 
-//                                                                  die->GetName(this, cu), 
-//                                                                  decl_ctx_die->GetOffset());
-//                    // Ask the type to complete itself if it already hasn't since if we
-//                    // want a function (method or static) from a class, the class must 
-//                    // create itself and add it's own methods and class functions.
-//                    if (parent_type)
-//                        parent_type->GetClangFullType();
-//                }
-            }
-            break;
+                switch (decl_ctx_die.Tag())
+                {
+                    case DW_TAG_structure_type:
+                    case DW_TAG_union_type:
+                    case DW_TAG_class_type:
+                    {
+                        // Get the type, which could be a forward declaration
+                        if (log)
+                            GetObjectFile()->GetModule()->LogMessage (log,
+                                                                      "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent forward type for 0x%8.8x", 
+                                                                      die.GetOffset(),
+                                                                      die.GetTagAsCString(),
+                                                                      die.GetName(),
+                                                                      decl_ctx_die.GetOffset());
+                    }
+                    break;
 
-            default:
-                break;
+                    default:
+                        break;
+                }
+            }
         }
-        return ResolveType (cu, die);
+        return ResolveType (die);
     }
     return NULL;
 }
 
 // This function is used when SymbolFileDWARFDebugMap owns a bunch of
 // SymbolFileDWARF objects to detect if this DWARF file is the one that
-// can resolve a clang_type.
+// can resolve a compiler_type.
 bool
-SymbolFileDWARF::HasForwardDeclForClangType (const ClangASTType &clang_type)
+SymbolFileDWARF::HasForwardDeclForClangType (const CompilerType &compiler_type)
 {
-    ClangASTType clang_type_no_qualifiers = clang_type.RemoveFastQualifiers();
-    const DWARFDebugInfoEntry* die = m_forward_decl_clang_type_to_die.lookup (clang_type_no_qualifiers.GetOpaqueQualType());
-    return die != NULL;
+    CompilerType compiler_type_no_qualifiers = ClangASTContext::RemoveFastQualifiers(compiler_type);
+    if (GetForwardDeclClangTypeToDie().count (compiler_type_no_qualifiers.GetOpaqueQualType()))
+    {
+        return true;
+    }
+    TypeSystem *type_system = compiler_type.GetTypeSystem();
+    if (type_system)
+    {
+        DWARFASTParser *dwarf_ast = type_system->GetDWARFParser();
+        if (dwarf_ast)
+            return dwarf_ast->CanCompleteType(compiler_type);
+    }
+    return false;
 }
 
 
 bool
-SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (ClangASTType &clang_type)
+SymbolFileDWARF::CompleteType (CompilerType &compiler_type)
 {
+    TypeSystem *type_system = compiler_type.GetTypeSystem();
+    if (type_system)
+    {
+        DWARFASTParser *dwarf_ast = type_system->GetDWARFParser();
+        if (dwarf_ast && dwarf_ast->CanCompleteType(compiler_type))
+            return dwarf_ast->CompleteType(compiler_type);
+    }
+
     // We have a struct/union/class/enum that needs to be fully resolved.
-    ClangASTType clang_type_no_qualifiers = clang_type.RemoveFastQualifiers();
-    const DWARFDebugInfoEntry* die = m_forward_decl_clang_type_to_die.lookup (clang_type_no_qualifiers.GetOpaqueQualType());
-    if (die == NULL)
+    CompilerType compiler_type_no_qualifiers = ClangASTContext::RemoveFastQualifiers(compiler_type);
+    auto die_it = GetForwardDeclClangTypeToDie().find (compiler_type_no_qualifiers.GetOpaqueQualType());
+    if (die_it == GetForwardDeclClangTypeToDie().end())
     {
         // We have already resolved this type...
         return true;
     }
+
+    DWARFDebugInfo* debug_info = DebugInfo();
+    DWARFDIE dwarf_die = debug_info->GetDIE(die_it->getSecond());
+
+    assert(UserIDMatches(die_it->getSecond().GetUID()) && "CompleteType called on the wrong SymbolFile");
+
     // Once we start resolving this type, remove it from the forward declaration
     // map in case anyone child members or other types require this type to get resolved.
     // The type will get resolved when all of the calls to SymbolFileDWARF::ResolveClangOpaqueTypeDefinition
     // are done.
-    m_forward_decl_clang_type_to_die.erase (clang_type_no_qualifiers.GetOpaqueQualType());
-
-    // Disable external storage for this type so we don't get anymore 
-    // clang::ExternalASTSource queries for this type.
-    clang_type.SetHasExternalStorage (false);
-
-    DWARFDebugInfo* debug_info = DebugInfo();
+    GetForwardDeclClangTypeToDie().erase (die_it);
 
-    DWARFCompileUnit *dwarf_cu = debug_info->GetCompileUnitContainingDIE (die->GetOffset()).get();
-    Type *type = m_die_to_type.lookup (die);
-
-    const dw_tag_t tag = die->Tag();
+    Type *type = GetDIEToType().lookup (dwarf_die.GetDIE());
 
     Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO|DWARF_LOG_TYPE_COMPLETION));
     if (log)
         GetObjectFile()->GetModule()->LogMessageVerboseBacktrace (log,
                                                                   "0x%8.8" PRIx64 ": %s '%s' resolving forward declaration...",
-                                                                  MakeUserID(die->GetOffset()),
-                                                                  DW_TAG_value_to_name(tag),
+                                                                  dwarf_die.GetID(),
+                                                                  dwarf_die.GetTagAsCString(),
                                                                   type->GetName().AsCString());
-    assert (clang_type);
-    DWARFDebugInfoEntry::Attributes attributes;
-
-    switch (tag)
-    {
-    case DW_TAG_structure_type:
-    case DW_TAG_union_type:
-    case DW_TAG_class_type:
-        {
-            LayoutInfo layout_info;
-
-            {
-                if (die->HasChildren())
-                {
-                    LanguageType class_language = eLanguageTypeUnknown;
-                    if (clang_type.IsObjCObjectOrInterfaceType())
-                    {
-                        class_language = eLanguageTypeObjC;
-                        // For objective C we don't start the definition when
-                        // the class is created.
-                        clang_type.StartTagDeclarationDefinition ();
-                    }
-
-                    int tag_decl_kind = -1;
-                    AccessType default_accessibility = eAccessNone;
-                    if (tag == DW_TAG_structure_type)
-                    {
-                        tag_decl_kind = clang::TTK_Struct;
-                        default_accessibility = eAccessPublic;
-                    }
-                    else if (tag == DW_TAG_union_type)
-                    {
-                        tag_decl_kind = clang::TTK_Union;
-                        default_accessibility = eAccessPublic;
-                    }
-                    else if (tag == DW_TAG_class_type)
-                    {
-                        tag_decl_kind = clang::TTK_Class;
-                        default_accessibility = eAccessPrivate;
-                    }
-
-                    SymbolContext sc(GetCompUnitForDWARFCompUnit(dwarf_cu));
-                    std::vector<clang::CXXBaseSpecifier *> base_classes;
-                    std::vector<int> member_accessibilities;
-                    bool is_a_class = false;
-                    // Parse members and base classes first
-                    DWARFDIECollection member_function_dies;
-
-                    DelayedPropertyList delayed_properties;
-                    ParseChildMembers (sc,
-                                       dwarf_cu,
-                                       die, 
-                                       clang_type,
-                                       class_language,
-                                       base_classes, 
-                                       member_accessibilities,
-                                       member_function_dies,
-                                       delayed_properties,
-                                       default_accessibility, 
-                                       is_a_class,
-                                       layout_info);
-
-                    // Now parse any methods if there were any...
-                    size_t num_functions = member_function_dies.Size();                
-                    if (num_functions > 0)
-                    {
-                        for (size_t i=0; i<num_functions; ++i)
-                        {
-                            ResolveType(dwarf_cu, member_function_dies.GetDIEPtrAtIndex(i));
-                        }
-                    }
-
-                    if (class_language == eLanguageTypeObjC)
-                    {
-                        ConstString class_name (clang_type.GetTypeName());
-                        if (class_name)
-                        {
-                            DIEArray method_die_offsets;
-                            if (m_using_apple_tables)
-                            {
-                                if (m_apple_objc_ap.get())
-                                    m_apple_objc_ap->FindByName(class_name.GetCString(), method_die_offsets);
-                            }
-                            else
-                            {
-                                if (!m_indexed)
-                                    Index ();
-
-                                m_objc_class_selectors_index.Find (class_name, method_die_offsets);
-                            }
-
-                            if (!method_die_offsets.empty())
-                            {
-                                DWARFDebugInfo* debug_info = DebugInfo();
-
-                                DWARFCompileUnit* method_cu = NULL;
-                                const size_t num_matches = method_die_offsets.size();
-                                for (size_t i=0; i<num_matches; ++i)
-                                {
-                                    const dw_offset_t die_offset = method_die_offsets[i];
-                                    DWARFDebugInfoEntry *method_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &method_cu);
-
-                                    if (method_die)
-                                        ResolveType (method_cu, method_die);
-                                    else
-                                    {
-                                        if (m_using_apple_tables)
-                                        {
-                                            GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_objc accelerator table had bad die 0x%8.8x for '%s')\n",
-                                                                                                       die_offset, class_name.GetCString());
-                                        }
-                                    }            
-                                }
-                            }
-
-                            for (DelayedPropertyList::iterator pi = delayed_properties.begin(), pe = delayed_properties.end();
-                                 pi != pe;
-                                 ++pi)
-                                pi->Finalize();
-                        }
-                    }
-
-                    // If we have a DW_TAG_structure_type instead of a DW_TAG_class_type we
-                    // need to tell the clang type it is actually a class.
-                    if (class_language != eLanguageTypeObjC)
-                    {
-                        if (is_a_class && tag_decl_kind != clang::TTK_Class)
-                            clang_type.SetTagTypeKind (clang::TTK_Class);
-                    }
-
-                    // Since DW_TAG_structure_type gets used for both classes
-                    // and structures, we may need to set any DW_TAG_member
-                    // fields to have a "private" access if none was specified.
-                    // When we parsed the child members we tracked that actual
-                    // accessibility value for each DW_TAG_member in the
-                    // "member_accessibilities" array. If the value for the
-                    // member is zero, then it was set to the "default_accessibility"
-                    // which for structs was "public". Below we correct this
-                    // by setting any fields to "private" that weren't correctly
-                    // set.
-                    if (is_a_class && !member_accessibilities.empty())
-                    {
-                        // This is a class and all members that didn't have
-                        // their access specified are private.
-                        clang_type.SetDefaultAccessForRecordFields (eAccessPrivate,
-                                                                    &member_accessibilities.front(),
-                                                                    member_accessibilities.size());
-                    }
-
-                    if (!base_classes.empty())
-                    {
-                        // Make sure all base classes refer to complete types and not
-                        // forward declarations. If we don't do this, clang will crash
-                        // with an assertion in the call to clang_type.SetBaseClassesForClassType()
-                        bool base_class_error = false;
-                        for (auto &base_class : base_classes)
-                        {
-                            clang::TypeSourceInfo *type_source_info = base_class->getTypeSourceInfo();
-                            if (type_source_info)
-                            {
-                                ClangASTType base_class_type (GetClangASTContext().getASTContext(), type_source_info->getType());
-                                if (base_class_type.GetCompleteType() == false)
-                                {
-                                    if (!base_class_error)
-                                    {
-                                        GetObjectFile()->GetModule()->ReportError ("DWARF DIE at 0x%8.8x for class '%s' has a base class '%s' that is a forward declaration, not a complete definition.\nPlease file a bug against the compiler and include the preprocessed output for %s",
-                                                                                   die->GetOffset(),
-                                                                                   die->GetName(this, dwarf_cu),
-                                                                                   base_class_type.GetTypeName().GetCString(),
-                                                                                   sc.comp_unit ? sc.comp_unit->GetPath().c_str() : "the source file");
-                                    }
-                                    // We have no choice other than to pretend that the base class
-                                    // is complete. If we don't do this, clang will crash when we
-                                    // call setBases() inside of "clang_type.SetBaseClassesForClassType()"
-                                    // below. Since we provide layout assistance, all ivars in this
-                                    // class and other classes will be fine, this is the best we can do
-                                    // short of crashing.
-                                    base_class_type.StartTagDeclarationDefinition ();
-                                    base_class_type.CompleteTagDeclarationDefinition ();
-                                }
-                            }
-                        }
-                        clang_type.SetBaseClassesForClassType (&base_classes.front(),
-                                                               base_classes.size());
-
-                        // Clang will copy each CXXBaseSpecifier in "base_classes"
-                        // so we have to free them all.
-                        ClangASTType::DeleteBaseClassSpecifiers (&base_classes.front(),
-                                                                 base_classes.size());
-                    }
-                }
-            }
-
-            clang_type.BuildIndirectFields ();
-            clang_type.CompleteTagDeclarationDefinition ();
-
-            if (!layout_info.field_offsets.empty() ||
-                !layout_info.base_offsets.empty()  ||
-                !layout_info.vbase_offsets.empty() )
-            {
-                if (type)
-                    layout_info.bit_size = type->GetByteSize() * 8;
-                if (layout_info.bit_size == 0)
-                    layout_info.bit_size = die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_byte_size, 0) * 8;
-
-                clang::CXXRecordDecl *record_decl = clang_type.GetAsCXXRecordDecl();
-                if (record_decl)
-                {
-                    if (log)
-                    {
-                        GetObjectFile()->GetModule()->LogMessage (log,
-                                                                  "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) caching layout info for record_decl = %p, bit_size = %" PRIu64 ", alignment = %" PRIu64 ", field_offsets[%u], base_offsets[%u], vbase_offsets[%u])",
-                                                                  static_cast<void*>(clang_type.GetOpaqueQualType()),
-                                                                  static_cast<void*>(record_decl),
-                                                                  layout_info.bit_size,
-                                                                  layout_info.alignment,
-                                                                  static_cast<uint32_t>(layout_info.field_offsets.size()),
-                                                                  static_cast<uint32_t>(layout_info.base_offsets.size()),
-                                                                  static_cast<uint32_t>(layout_info.vbase_offsets.size()));
-
-                        uint32_t idx;
-                        {
-                            llvm::DenseMap<const clang::FieldDecl *, uint64_t>::const_iterator pos,
-                                end = layout_info.field_offsets.end();
-                            for (idx = 0, pos = layout_info.field_offsets.begin(); pos != end; ++pos, ++idx)
-                        {
-                            GetObjectFile()->GetModule()->LogMessage(
-                                log, "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) field[%u] = "
-                                     "{ bit_offset=%u, name='%s' }",
-                                static_cast<void *>(clang_type.GetOpaqueQualType()), idx,
-                                static_cast<uint32_t>(pos->second), pos->first->getNameAsString().c_str());
-                        }
-                        }
-
-                        {
-                            llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator base_pos,
-                                base_end = layout_info.base_offsets.end();
-                            for (idx = 0, base_pos = layout_info.base_offsets.begin(); base_pos != base_end;
-                                 ++base_pos, ++idx)
-                            {
-                                GetObjectFile()->GetModule()->LogMessage(
-                                    log, "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) base[%u] "
-                                         "= { byte_offset=%u, name='%s' }",
-                                    clang_type.GetOpaqueQualType(), idx, (uint32_t)base_pos->second.getQuantity(),
-                                    base_pos->first->getNameAsString().c_str());
-                            }
-                        }
-                        {
-                            llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator vbase_pos,
-                                vbase_end = layout_info.vbase_offsets.end();
-                            for (idx = 0, vbase_pos = layout_info.vbase_offsets.begin(); vbase_pos != vbase_end;
-                                 ++vbase_pos, ++idx)
-                            {
-                                GetObjectFile()->GetModule()->LogMessage(
-                                    log, "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) "
-                                         "vbase[%u] = { byte_offset=%u, name='%s' }",
-                                    static_cast<void *>(clang_type.GetOpaqueQualType()), idx,
-                                    static_cast<uint32_t>(vbase_pos->second.getQuantity()),
-                                    vbase_pos->first->getNameAsString().c_str());
-                            }
-                        }
-                    }
-                    m_record_decl_to_layout_map.insert(std::make_pair(record_decl, layout_info));
-                }
-            }
-        }
-
-        return (bool)clang_type;
-
-    case DW_TAG_enumeration_type:
-        clang_type.StartTagDeclarationDefinition ();
-        if (die->HasChildren())
-        {
-            SymbolContext sc(GetCompUnitForDWARFCompUnit(dwarf_cu));
-            bool is_signed = false;
-            clang_type.IsIntegerType(is_signed);
-            ParseChildEnumerators(sc, clang_type, is_signed, type->GetByteSize(), dwarf_cu, die);
-        }
-        clang_type.CompleteTagDeclarationDefinition ();
-        return (bool)clang_type;
-
-    default:
-        assert(false && "not a forward clang type decl!");
-        break;
-    }
+    assert (compiler_type);
+    DWARFASTParser *dwarf_ast = dwarf_die.GetDWARFParser();
+    if (dwarf_ast)
+        return dwarf_ast->CompleteTypeFromDWARF (dwarf_die, type, compiler_type);
     return false;
 }
 
 Type*
-SymbolFileDWARF::ResolveType (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* type_die, bool assert_not_being_parsed)
+SymbolFileDWARF::ResolveType (const DWARFDIE &die, bool assert_not_being_parsed, bool resolve_function_context)
 {
-    if (type_die != NULL)
+    if (die)
     {
-        Type *type = m_die_to_type.lookup (type_die);
+        Type *type = GetDIEToType().lookup (die.GetDIE());
 
         if (type == NULL)
-            type = GetTypeForDIE (dwarf_cu, type_die).get();
+            type = GetTypeForDIE (die, resolve_function_context).get();
 
         if (assert_not_being_parsed)
         { 
@@ -2829,15 +1647,15 @@ SymbolFileDWARF::ResolveType (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEn
                 return type;
             
             GetObjectFile()->GetModule()->ReportError ("Parsing a die that is being parsed die: 0x%8.8x: %s %s",
-                                                       type_die->GetOffset(), 
-                                                       DW_TAG_value_to_name(type_die->Tag()), 
-                                                       type_die->GetName(this, dwarf_cu));
+                                                       die.GetOffset(),
+                                                       die.GetTagAsCString(),
+                                                       die.GetName());
 
         }
         else
             return type;
     }
-    return NULL;
+    return nullptr;
 }
 
 CompileUnit*
@@ -2853,26 +1671,60 @@ SymbolFileDWARF::GetCompUnitForDWARFCompUnit (DWARFCompileUnit* dwarf_cu, uint32
     return (CompileUnit*)dwarf_cu->GetUserData();
 }
 
+size_t
+SymbolFileDWARF::GetObjCMethodDIEOffsets (ConstString class_name, DIEArray &method_die_offsets)
+{
+    method_die_offsets.clear();
+    if (m_using_apple_tables)
+    {
+        if (m_apple_objc_ap.get())
+            m_apple_objc_ap->FindByName(class_name.GetCString(), method_die_offsets);
+    }
+    else
+    {
+        if (!m_indexed)
+            Index ();
+
+        m_objc_class_selectors_index.Find (class_name, method_die_offsets);
+    }
+    return method_die_offsets.size();
+}
+
 bool
-SymbolFileDWARF::GetFunction (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* func_die, SymbolContext& sc)
+SymbolFileDWARF::GetFunction (const DWARFDIE &die, SymbolContext& sc)
 {
     sc.Clear(false);
-    // Check if the symbol vendor already knows about this compile unit?
-    sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
 
-    sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(func_die->GetOffset())).get();
-    if (sc.function == NULL)
-        sc.function = ParseCompileUnitFunction(sc, dwarf_cu, func_die);
-        
-    if (sc.function)
-    {        
-        sc.module_sp = sc.function->CalculateSymbolContextModule();
-        return true;
+    if (die)
+    {
+        // Check if the symbol vendor already knows about this compile unit?
+        sc.comp_unit = GetCompUnitForDWARFCompUnit(die.GetCU(), UINT32_MAX);
+
+        sc.function = sc.comp_unit->FindFunctionByUID (die.GetID()).get();
+        if (sc.function == NULL)
+            sc.function = ParseCompileUnitFunction(sc, die);
+            
+        if (sc.function)
+        {        
+            sc.module_sp = sc.function->CalculateSymbolContextModule();
+            return true;
+        }
     }
     
     return false;
 }
 
+lldb::ModuleSP
+SymbolFileDWARF::GetDWOModule (ConstString name)
+{
+    UpdateExternalModuleListIfNeeded();
+    const auto &pos = m_external_type_modules.find(name);
+    if (pos != m_external_type_modules.end())
+        return pos->second;
+    else
+        return lldb::ModuleSP();
+}
+
 void
 SymbolFileDWARF::UpdateExternalModuleListIfNeeded()
 {
@@ -2881,47 +1733,33 @@ SymbolFileDWARF::UpdateExternalModuleListIfNeeded()
     m_fetched_external_modules = true;
     
     DWARFDebugInfo * debug_info = DebugInfo();
-    debug_info->GetNumCompileUnits();
-    
+
     const uint32_t num_compile_units = GetNumCompileUnits();
     for (uint32_t cu_idx = 0; cu_idx < num_compile_units; ++cu_idx)
     {
         DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx);
         
-        const DWARFDebugInfoEntry *die = dwarf_cu->GetCompileUnitDIEOnly();
-        if (die && die->HasChildren() == false)
+        const DWARFDIE die = dwarf_cu->GetCompileUnitDIEOnly();
+        if (die && die.HasChildren() == false)
         {
-            const uint64_t name_strp = die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_name, UINT64_MAX);
-            const uint64_t dwo_path_strp = die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_GNU_dwo_name, UINT64_MAX);
-            
-            if (name_strp != UINT64_MAX)
+            const char *name = die.GetAttributeValueAsString(DW_AT_name, nullptr);
+
+            if (name)
             {
-                if (m_external_type_modules.find(dwo_path_strp) == m_external_type_modules.end())
+                ConstString const_name(name);
+                if (m_external_type_modules.find(const_name) == m_external_type_modules.end())
                 {
-                    const char *name = get_debug_str_data().PeekCStr(name_strp);
-                    const char *dwo_path = get_debug_str_data().PeekCStr(dwo_path_strp);
-                    if (name || dwo_path)
+                    ModuleSP module_sp;
+                    const char *dwo_path = die.GetAttributeValueAsString(DW_AT_GNU_dwo_name, nullptr);
+                    if (dwo_path)
                     {
-                        ModuleSP module_sp;
-                        if (dwo_path)
-                        {
-                            ModuleSpec dwo_module_spec;
-                            dwo_module_spec.GetFileSpec().SetFile(dwo_path, false);
-                            dwo_module_spec.GetArchitecture() = m_obj_file->GetModule()->GetArchitecture();
-                            //printf ("Loading dwo = '%s'\n", dwo_path);
-                            Error error = ModuleList::GetSharedModule (dwo_module_spec, module_sp, NULL, NULL, NULL);
-                        }
-                        
-                        if (dwo_path_strp != LLDB_INVALID_UID)
-                        {
-                            m_external_type_modules[dwo_path_strp] = ClangModuleInfo { ConstString(name), module_sp };
-                        }
-                        else
-                        {
-                            // This hack should be removed promptly once clang emits both.
-                            m_external_type_modules[name_strp] = ClangModuleInfo { ConstString(name), module_sp };
-                        }
+                        ModuleSpec dwo_module_spec;
+                        dwo_module_spec.GetFileSpec().SetFile(dwo_path, false);
+                        dwo_module_spec.GetArchitecture() = m_obj_file->GetModule()->GetArchitecture();
+                        //printf ("Loading dwo = '%s'\n", dwo_path);
+                        Error error = ModuleList::GetSharedModule (dwo_module_spec, module_sp, NULL, NULL, NULL);
                     }
+                    m_external_type_modules[const_name] = module_sp;
                 }
             }
         }
@@ -3025,7 +1863,7 @@ SymbolFileDWARF::ResolveSymbolContext (const Address& so_addr, uint32_t resolve_
             else
             {
                 uint32_t cu_idx = DW_INVALID_INDEX;
-                DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnit(cu_offset, &cu_idx).get();
+                DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnit(cu_offset, &cu_idx);
                 if (dwarf_cu)
                 {
                     sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, cu_idx);
@@ -3036,22 +1874,16 @@ SymbolFileDWARF::ResolveSymbolContext (const Address& so_addr, uint32_t resolve_
                         bool force_check_line_table = false;
                         if (resolve_scope & (eSymbolContextFunction | eSymbolContextBlock))
                         {
-                            DWARFDebugInfoEntry *function_die = NULL;
-                            DWARFDebugInfoEntry *block_die = NULL;
-                            if (resolve_scope & eSymbolContextBlock)
-                            {
-                                dwarf_cu->LookupAddress(file_vm_addr, &function_die, &block_die);
-                            }
-                            else
-                            {
-                                dwarf_cu->LookupAddress(file_vm_addr, &function_die, NULL);
-                            }
-
-                            if (function_die != NULL)
+                            DWARFDIE function_die = dwarf_cu->LookupAddress(file_vm_addr);
+                            DWARFDIE block_die;
+                            if (function_die)
                             {
-                                sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(function_die->GetOffset())).get();
+                                sc.function = sc.comp_unit->FindFunctionByUID (function_die.GetID()).get();
                                 if (sc.function == NULL)
-                                    sc.function = ParseCompileUnitFunction(sc, dwarf_cu, function_die);
+                                    sc.function = ParseCompileUnitFunction(sc, function_die);
+
+                                if (sc.function && (resolve_scope & eSymbolContextBlock))
+                                    block_die = function_die.LookupDeepestBlock(file_vm_addr);
                             }
                             else
                             {
@@ -3072,10 +1904,10 @@ SymbolFileDWARF::ResolveSymbolContext (const Address& so_addr, uint32_t resolve_
                                 {
                                     Block& block = sc.function->GetBlock (true);
 
-                                    if (block_die != NULL)
-                                        sc.block = block.FindBlockByID (MakeUserID(block_die->GetOffset()));
+                                    if (block_die)
+                                        sc.block = block.FindBlockByID (block_die.GetID());
                                     else
-                                        sc.block = block.FindBlockByID (MakeUserID(function_die->GetOffset()));
+                                        sc.block = block.FindBlockByID (function_die.GetID());
                                     if (sc.block)
                                         resolved |= eSymbolContextBlock;
                                 }
@@ -3190,25 +2022,26 @@ SymbolFileDWARF::ResolveSymbolContext(const FileSpec& file_spec, uint32_t line,
                                             const lldb::addr_t file_vm_addr = sc.line_entry.range.GetBaseAddress().GetFileAddress();
                                             if (file_vm_addr != LLDB_INVALID_ADDRESS)
                                             {
-                                                DWARFDebugInfoEntry *function_die = NULL;
-                                                DWARFDebugInfoEntry *block_die = NULL;
-                                                dwarf_cu->LookupAddress(file_vm_addr, &function_die, resolve_scope & eSymbolContextBlock ? &block_die : NULL);
-
-                                                if (function_die != NULL)
+                                                DWARFDIE function_die = dwarf_cu->LookupAddress(file_vm_addr);
+                                                DWARFDIE block_die;
+                                                if (function_die)
                                                 {
-                                                    sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(function_die->GetOffset())).get();
+                                                    sc.function = sc.comp_unit->FindFunctionByUID (function_die.GetID()).get();
                                                     if (sc.function == NULL)
-                                                        sc.function = ParseCompileUnitFunction(sc, dwarf_cu, function_die);
+                                                        sc.function = ParseCompileUnitFunction(sc, function_die);
+
+                                                    if (sc.function && (resolve_scope & eSymbolContextBlock))
+                                                        block_die = function_die.LookupDeepestBlock(file_vm_addr);
                                                 }
 
                                                 if (sc.function != NULL)
                                                 {
                                                     Block& block = sc.function->GetBlock (true);
 
-                                                    if (block_die != NULL)
-                                                        sc.block = block.FindBlockByID (MakeUserID(block_die->GetOffset()));
-                                                    else if (function_die != NULL)
-                                                        sc.block = block.FindBlockByID (MakeUserID(function_die->GetOffset()));
+                                                    if (block_die)
+                                                        sc.block = block.FindBlockByID (block_die.GetID());
+                                                    else if (function_die)
+                                                        sc.block = block.FindBlockByID (function_die.GetID());
                                                 }
                                             }
                                         }
@@ -3255,38 +2088,77 @@ SymbolFileDWARF::Index ()
     DWARFDebugInfo* debug_info = DebugInfo();
     if (debug_info)
     {
-        uint32_t cu_idx = 0;
         const uint32_t num_compile_units = GetNumCompileUnits();
-        for (cu_idx = 0; cu_idx < num_compile_units; ++cu_idx)
+        std::vector<NameToDIE> function_basename_index(num_compile_units);
+        std::vector<NameToDIE> function_fullname_index(num_compile_units);
+        std::vector<NameToDIE> function_method_index(num_compile_units);
+        std::vector<NameToDIE> function_selector_index(num_compile_units);
+        std::vector<NameToDIE> objc_class_selectors_index(num_compile_units);
+        std::vector<NameToDIE> global_index(num_compile_units);
+        std::vector<NameToDIE> type_index(num_compile_units);
+        std::vector<NameToDIE> namespace_index(num_compile_units);
+        
+        auto parser_fn = [this,
+                          debug_info,
+                          &function_basename_index,
+                          &function_fullname_index,
+                          &function_method_index,
+                          &function_selector_index,
+                          &objc_class_selectors_index,
+                          &global_index,
+                          &type_index,
+                          &namespace_index](uint32_t cu_idx)
         {
             DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx);
+            bool clear_dies = dwarf_cu->ExtractDIEsIfNeeded(false) > 1;
+
+            dwarf_cu->Index(function_basename_index[cu_idx],
+                            function_fullname_index[cu_idx],
+                            function_method_index[cu_idx],
+                            function_selector_index[cu_idx],
+                            objc_class_selectors_index[cu_idx],
+                            global_index[cu_idx],
+                            type_index[cu_idx],
+                            namespace_index[cu_idx]);
 
-            bool clear_dies = dwarf_cu->ExtractDIEsIfNeeded (false) > 1;
-
-            dwarf_cu->Index (cu_idx,
-                             m_function_basename_index,
-                             m_function_fullname_index,
-                             m_function_method_index,
-                             m_function_selector_index,
-                             m_objc_class_selectors_index,
-                             m_global_index, 
-                             m_type_index,
-                             m_namespace_index);
-            
             // Keep memory down by clearing DIEs if this generate function
             // caused them to be parsed
             if (clear_dies)
-                dwarf_cu->ClearDIEs (true);
+                dwarf_cu->ClearDIEs(true);
+
+            return cu_idx;
+        };
+
+        TaskRunner<uint32_t> task_runner;
+        for (uint32_t cu_idx = 0; cu_idx < num_compile_units; ++cu_idx)
+            task_runner.AddTask(parser_fn, cu_idx);
+
+        while (true)
+        {
+            std::future<uint32_t> f = task_runner.WaitForNextCompletedTask();
+            if (!f.valid())
+                break;
+            uint32_t cu_idx = f.get();
+
+            m_function_basename_index.Append(function_basename_index[cu_idx]);
+            m_function_fullname_index.Append(function_fullname_index[cu_idx]);
+            m_function_method_index.Append(function_method_index[cu_idx]);
+            m_function_selector_index.Append(function_selector_index[cu_idx]);
+            m_objc_class_selectors_index.Append(objc_class_selectors_index[cu_idx]);
+            m_global_index.Append(global_index[cu_idx]);
+            m_type_index.Append(type_index[cu_idx]);
+            m_namespace_index.Append(namespace_index[cu_idx]);
         }
-        
-        m_function_basename_index.Finalize();
-        m_function_fullname_index.Finalize();
-        m_function_method_index.Finalize();
-        m_function_selector_index.Finalize();
-        m_objc_class_selectors_index.Finalize();
-        m_global_index.Finalize(); 
-        m_type_index.Finalize();
-        m_namespace_index.Finalize();
+
+        TaskPool::RunTasks(
+            [&]() { m_function_basename_index.Finalize(); },
+            [&]() { m_function_fullname_index.Finalize(); },
+            [&]() { m_function_method_index.Finalize(); },
+            [&]() { m_function_selector_index.Finalize(); },
+            [&]() { m_objc_class_selectors_index.Finalize(); },
+            [&]() { m_global_index.Finalize(); },
+            [&]() { m_type_index.Finalize(); },
+            [&]() { m_namespace_index.Finalize(); });
 
 #if defined (ENABLE_DEBUG_PRINTF)
         StreamFile s(stdout, false);
@@ -3299,30 +2171,26 @@ SymbolFileDWARF::Index ()
         s.Printf("\nObjective C class selectors:\n");    m_objc_class_selectors_index.Dump (&s);
         s.Printf("\nGlobals and statics:\n");   m_global_index.Dump (&s); 
         s.Printf("\nTypes:\n");                 m_type_index.Dump (&s);
-        s.Printf("\nNamepaces:\n");             m_namespace_index.Dump (&s);
+        s.Printf("\nNamespaces:\n")             m_namespace_index.Dump (&s);
 #endif
     }
 }
 
 bool
-SymbolFileDWARF::NamespaceDeclMatchesThisSymbolFile (const ClangNamespaceDecl *namespace_decl)
+SymbolFileDWARF::DeclContextMatchesThisSymbolFile (const lldb_private::CompilerDeclContext *decl_ctx)
 {
-    if (namespace_decl == NULL)
+    if (decl_ctx == nullptr || !decl_ctx->IsValid())
     {
         // Invalid namespace decl which means we aren't matching only things
         // in this symbol file, so return true to indicate it matches this
         // symbol file.
         return true;
     }
-    
-    clang::ASTContext *namespace_ast = namespace_decl->GetASTContext();
-
-    if (namespace_ast == NULL)
-        return true;    // No AST in the "namespace_decl", return true since it 
-                        // could then match any symbol file, including this one
 
-    if (namespace_ast == GetClangASTContext().getASTContext())
-        return true;    // The ASTs match, return true
+    TypeSystem *decl_ctx_type_system = decl_ctx->GetTypeSystem();
+    TypeSystem *type_system = GetTypeSystemForLanguage(decl_ctx_type_system->GetMinimumLanguage(nullptr));
+    if (decl_ctx_type_system == type_system)
+        return true;    // The type systems match, return true
     
     // The namespace AST was valid, and it does not match...
     Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
@@ -3333,66 +2201,19 @@ SymbolFileDWARF::NamespaceDeclMatchesThisSymbolFile (const ClangNamespaceDecl *n
     return false;
 }
 
-bool
-SymbolFileDWARF::DIEIsInNamespace (const ClangNamespaceDecl *namespace_decl, 
-                                   DWARFCompileUnit* cu, 
-                                   const DWARFDebugInfoEntry* die)
-{
-    // No namespace specified, so the answer is
-    if (namespace_decl == NULL)
-        return true;
-    
-    Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
-
-    const DWARFDebugInfoEntry *decl_ctx_die = NULL;
-    clang::DeclContext *die_clang_decl_ctx = GetClangDeclContextContainingDIE (cu, die, &decl_ctx_die);
-    if (decl_ctx_die)
-    { 
-        clang::NamespaceDecl *clang_namespace_decl = namespace_decl->GetNamespaceDecl();
-
-        if (clang_namespace_decl)
-        {
-            if (decl_ctx_die->Tag() != DW_TAG_namespace)
-            {
-                if (log)
-                    GetObjectFile()->GetModule()->LogMessage(log, "Found a match, but its parent is not a namespace");
-                return false;
-            }
-                
-            if (clang_namespace_decl == die_clang_decl_ctx)
-                return true;
-            else
-                return false;
-        }
-        else
-        {
-            // We have a namespace_decl that was not NULL but it contained
-            // a NULL "clang::NamespaceDecl", so this means the global namespace
-            // So as long the contained decl context DIE isn't a namespace
-            // we should be ok.
-            if (decl_ctx_die->Tag() != DW_TAG_namespace)
-                return true;
-        }
-    }
-    
-    if (log)
-        GetObjectFile()->GetModule()->LogMessage(log, "Found a match, but its parent doesn't exist");
-    
-    return false;
-}
 uint32_t
-SymbolFileDWARF::FindGlobalVariables (const ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables)
+SymbolFileDWARF::FindGlobalVariables (const ConstString &name, const CompilerDeclContext *parent_decl_ctx, bool append, uint32_t max_matches, VariableList& variables)
 {
     Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
 
     if (log)
         GetObjectFile()->GetModule()->LogMessage (log,
-                                                  "SymbolFileDWARF::FindGlobalVariables (name=\"%s\", namespace_decl=%p, append=%u, max_matches=%u, variables)", 
+                                                  "SymbolFileDWARF::FindGlobalVariables (name=\"%s\", parent_decl_ctx=%p, append=%u, max_matches=%u, variables)",
                                                   name.GetCString(), 
-                                                  static_cast<const void*>(namespace_decl),
+                                                  static_cast<const void*>(parent_decl_ctx),
                                                   append, max_matches);
 
-    if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl))
+    if (!DeclContextMatchesThisSymbolFile(parent_decl_ctx))
         return 0;
 
     DWARFDebugInfo* info = DebugInfo();
@@ -3417,7 +2238,7 @@ SymbolFileDWARF::FindGlobalVariables (const ConstString &name, const lldb_privat
             llvm::StringRef basename;
             llvm::StringRef context;
 
-            if (!CPPLanguageRuntime::ExtractContextAndIdentifier(name_cstr, context, basename))
+            if (!CPlusPlusLanguage::ExtractContextAndIdentifier(name_cstr, context, basename))
                 basename = name_cstr;
 
             m_apple_names_ap->FindByName (basename.data(), die_offsets);
@@ -3440,17 +2261,15 @@ SymbolFileDWARF::FindGlobalVariables (const ConstString &name, const lldb_privat
         assert (sc.module_sp);
 
         DWARFDebugInfo* debug_info = DebugInfo();
-        DWARFCompileUnit* dwarf_cu = NULL;
-        const DWARFDebugInfoEntry* die = NULL;
         bool done = false;
         for (size_t i=0; i<num_die_matches && !done; ++i)
         {
-            const dw_offset_t die_offset = die_offsets[i];
-            die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
+            const DIERef& die_ref = die_offsets[i];
+            DWARFDIE die = debug_info->GetDIE (die_ref);
 
             if (die)
             {
-                switch (die->Tag())
+                switch (die.Tag())
                 {
                     default:
                     case DW_TAG_subprogram:
@@ -3461,12 +2280,20 @@ SymbolFileDWARF::FindGlobalVariables (const ConstString &name, const lldb_privat
 
                     case DW_TAG_variable:
                         {
-                            sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
+                            sc.comp_unit = GetCompUnitForDWARFCompUnit(die.GetCU(), UINT32_MAX);
 
-                            if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
-                                continue;
+                            if (parent_decl_ctx)
+                            {
+                                DWARFASTParser *dwarf_ast = die.GetDWARFParser();
+                                if (dwarf_ast)
+                                {
+                                    CompilerDeclContext actual_parent_decl_ctx = dwarf_ast->GetDeclContextContainingUIDFromDWARF (die);
+                                    if (!actual_parent_decl_ctx || actual_parent_decl_ctx != *parent_decl_ctx)
+                                        continue;
+                                }
+                            }
 
-                            ParseVariables(sc, dwarf_cu, LLDB_INVALID_ADDRESS, die, false, false, &variables);
+                            ParseVariables(sc, die, LLDB_INVALID_ADDRESS, false, false, &variables);
 
                             if (variables.GetSize() - original_size >= max_matches)
                                 done = true;
@@ -3479,7 +2306,7 @@ SymbolFileDWARF::FindGlobalVariables (const ConstString &name, const lldb_privat
                 if (m_using_apple_tables)
                 {
                     GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')\n",
-                                                                               die_offset, name.GetCString());
+                                                                               die_ref.die_offset, name.GetCString());
                 }
             }
         }
@@ -3490,9 +2317,9 @@ SymbolFileDWARF::FindGlobalVariables (const ConstString &name, const lldb_privat
     if (log && num_matches > 0)
     {
         GetObjectFile()->GetModule()->LogMessage (log,
-                                                  "SymbolFileDWARF::FindGlobalVariables (name=\"%s\", namespace_decl=%p, append=%u, max_matches=%u, variables) => %u",
+                                                  "SymbolFileDWARF::FindGlobalVariables (name=\"%s\", parent_decl_ctx=%p, append=%u, max_matches=%u, variables) => %u",
                                                   name.GetCString(),
-                                                  static_cast<const void*>(namespace_decl),
+                                                  static_cast<const void*>(parent_decl_ctx),
                                                   append, max_matches,
                                                   num_matches);
     }
@@ -3525,7 +2352,7 @@ SymbolFileDWARF::FindGlobalVariables(const RegularExpression& regex, bool append
     const uint32_t original_size = variables.GetSize();
 
     DIEArray die_offsets;
-    
+
     if (m_using_apple_tables)
     {
         if (m_apple_names_ap.get())
@@ -3548,22 +2375,20 @@ SymbolFileDWARF::FindGlobalVariables(const RegularExpression& regex, bool append
     sc.module_sp = m_obj_file->GetModule();
     assert (sc.module_sp);
     
-    DWARFCompileUnit* dwarf_cu = NULL;
-    const DWARFDebugInfoEntry* die = NULL;
     const size_t num_matches = die_offsets.size();
     if (num_matches)
     {
         DWARFDebugInfo* debug_info = DebugInfo();
         for (size_t i=0; i<num_matches; ++i)
         {
-            const dw_offset_t die_offset = die_offsets[i];
-            die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
+            const DIERef& die_ref = die_offsets[i];
+            DWARFDIE die = debug_info->GetDIE (die_ref);
             
             if (die)
             {
-                sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
+                sc.comp_unit = GetCompUnitForDWARFCompUnit(die.GetCU(), UINT32_MAX);
 
-                ParseVariables(sc, dwarf_cu, LLDB_INVALID_ADDRESS, die, false, false, &variables);
+                ParseVariables(sc, die, LLDB_INVALID_ADDRESS, false, false, &variables);
 
                 if (variables.GetSize() - original_size >= max_matches)
                     break;
@@ -3573,7 +2398,7 @@ SymbolFileDWARF::FindGlobalVariables(const RegularExpression& regex, bool append
                 if (m_using_apple_tables)
                 {
                     GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for regex '%s')\n",
-                                                                               die_offset, regex.GetText());
+                                                                               die_ref.die_offset, regex.GetText());
                 }
             }            
         }
@@ -3585,53 +2410,59 @@ SymbolFileDWARF::FindGlobalVariables(const RegularExpression& regex, bool append
 
 
 bool
-SymbolFileDWARF::ResolveFunction (dw_offset_t die_offset,
-                                  DWARFCompileUnit *&dwarf_cu,
+SymbolFileDWARF::ResolveFunction (const DIERef& die_ref,
                                   bool include_inlines,
                                   SymbolContextList& sc_list)
 {
-    const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
-    return ResolveFunction (dwarf_cu, die, include_inlines, sc_list);
+    DWARFDIE die = DebugInfo()->GetDIE (die_ref);
+    return ResolveFunction (die, include_inlines, sc_list);
 }
     
 
 bool
-SymbolFileDWARF::ResolveFunction (DWARFCompileUnit *cu,
-                                  const DWARFDebugInfoEntry *die,
+SymbolFileDWARF::ResolveFunction (const DWARFDIE &orig_die,
                                   bool include_inlines,
                                   SymbolContextList& sc_list)
 {
     SymbolContext sc;
 
-    if (die == NULL)
+    if (!orig_die)
         return false;
 
     // If we were passed a die that is not a function, just return false...
-    if (! (die->Tag() == DW_TAG_subprogram || (include_inlines && die->Tag() == DW_TAG_inlined_subroutine)))
+    if (!(orig_die.Tag() == DW_TAG_subprogram || (include_inlines && orig_die.Tag() == DW_TAG_inlined_subroutine)))
         return false;
-    
-    const DWARFDebugInfoEntry* inlined_die = NULL;
-    if (die->Tag() == DW_TAG_inlined_subroutine)
+
+    DWARFDIE die = orig_die;
+    DWARFDIE inlined_die;
+    if (die.Tag() == DW_TAG_inlined_subroutine)
     {
         inlined_die = die;
         
-        while ((die = die->GetParent()) != NULL)
+        while (1)
         {
-            if (die->Tag() == DW_TAG_subprogram)
+            die = die.GetParent();
+
+            if (die)
+            {
+                if (die.Tag() == DW_TAG_subprogram)
+                    break;
+            }
+            else
                 break;
         }
     }
-    assert (die && die->Tag() == DW_TAG_subprogram);
-    if (GetFunction (cu, die, sc))
+    assert (die && die.Tag() == DW_TAG_subprogram);
+    if (GetFunction (die, sc))
     {
         Address addr;
         // Parse all blocks if needed
         if (inlined_die)
         {
             Block &function_block = sc.function->GetBlock (true);
-            sc.block = function_block.FindBlockByID (MakeUserID(inlined_die->GetOffset()));
+            sc.block = function_block.FindBlockByID (inlined_die.GetID());
             if (sc.block == NULL)
-                sc.block = function_block.FindBlockByID (inlined_die->GetOffset());
+                sc.block = function_block.FindBlockByID (inlined_die.GetOffset());
             if (sc.block == NULL || sc.block->GetStartAddress (addr) == false)
                 addr.Clear();
         }
@@ -3702,131 +2533,37 @@ SymbolFileDWARF::ParseFunctions (const DIEArray &die_offsets,
     const size_t num_matches = die_offsets.size();
     if (num_matches)
     {
-        DWARFCompileUnit* dwarf_cu = NULL;
         for (size_t i=0; i<num_matches; ++i)
-        {
-            const dw_offset_t die_offset = die_offsets[i];
-            ResolveFunction (die_offset, dwarf_cu, include_inlines, sc_list);
-        }
+            ResolveFunction (die_offsets[i], include_inlines, sc_list);
     }
 }
 
 bool
-SymbolFileDWARF::FunctionDieMatchesPartialName (const DWARFDebugInfoEntry* die,
-                                                const DWARFCompileUnit *dwarf_cu,
-                                                uint32_t name_type_mask, 
-                                                const char *partial_name,
-                                                const char *base_name_start,
-                                                const char *base_name_end)
+SymbolFileDWARF::DIEInDeclContext (const CompilerDeclContext *decl_ctx,
+                                   const DWARFDIE &die)
 {
-    // If we are looking only for methods, throw away all the ones that are or aren't in C++ classes:
-    if (name_type_mask == eFunctionNameTypeMethod || name_type_mask == eFunctionNameTypeBase)
-    {
-        clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIEOffset(die->GetOffset());
-        if (!containing_decl_ctx)
-            return false;
-        
-        bool is_cxx_method = DeclKindIsCXXClass(containing_decl_ctx->getDeclKind());
-        
-        if (name_type_mask == eFunctionNameTypeMethod)
-        {
-            if (is_cxx_method == false)
-                return false;
-        }
-        
-        if (name_type_mask == eFunctionNameTypeBase)
-        {
-            if (is_cxx_method == true)
-                return false;
-        }
-    }
+    // If we have no parent decl context to match this DIE matches, and if the parent
+    // decl context isn't valid, we aren't trying to look for any particular decl
+    // context so any die matches.
+    if (decl_ctx == nullptr || !decl_ctx->IsValid())
+        return true;
 
-    // Now we need to check whether the name we got back for this type matches the extra specifications
-    // that were in the name we're looking up:
-    if (base_name_start != partial_name || *base_name_end != '\0')
+    if (die)
     {
-        // First see if the stuff to the left matches the full name.  To do that let's see if
-        // we can pull out the mips linkage name attribute:
-        
-        Mangled best_name;
-        DWARFDebugInfoEntry::Attributes attributes;
-        DWARFFormValue form_value;
-        die->GetAttributes(this, dwarf_cu, NULL, attributes);
-        uint32_t idx = attributes.FindAttributeIndex(DW_AT_MIPS_linkage_name);
-        if (idx == UINT32_MAX)
-            idx = attributes.FindAttributeIndex(DW_AT_linkage_name);
-        if (idx != UINT32_MAX)
+        DWARFASTParser *dwarf_ast = die.GetDWARFParser();
+        if (dwarf_ast)
         {
-            if (attributes.ExtractFormValueAtIndex(this, idx, form_value))
-            {
-                const char *mangled_name = form_value.AsCString(&get_debug_str_data());
-                if (mangled_name)
-                    best_name.SetValue (ConstString(mangled_name), true);
-            }
-        }
-
-        if (!best_name)
-        {
-            idx = attributes.FindAttributeIndex(DW_AT_name);
-            if (idx != UINT32_MAX && attributes.ExtractFormValueAtIndex(this, idx, form_value))
-            {
-                const char *name = form_value.AsCString(&get_debug_str_data());
-                best_name.SetValue (ConstString(name), false);
-            }
-        }
-
-        const LanguageType cu_language = const_cast<DWARFCompileUnit *>(dwarf_cu)->GetLanguageType();
-        if (best_name.GetDemangledName(cu_language))
-        {
-            const char *demangled = best_name.GetDemangledName(cu_language).GetCString();
-            if (demangled)
-            {
-                std::string name_no_parens(partial_name, base_name_end - partial_name);
-                const char *partial_in_demangled = strstr (demangled, name_no_parens.c_str());
-                if (partial_in_demangled == NULL)
-                    return false;
-                else
-                {
-                    // Sort out the case where our name is something like "Process::Destroy" and the match is
-                    // "SBProcess::Destroy" - that shouldn't be a match.  We should really always match on
-                    // namespace boundaries...
-                    
-                    if (partial_name[0] == ':'  && partial_name[1] == ':')
-                    {
-                        // The partial name was already on a namespace boundary so all matches are good.
-                        return true;
-                    }
-                    else if (partial_in_demangled == demangled)
-                    {
-                        // They both start the same, so this is an good match.
-                        return true;
-                    }
-                    else
-                    {
-                        if (partial_in_demangled - demangled == 1)
-                        {
-                            // Only one character difference, can't be a namespace boundary...
-                            return false;
-                        }
-                        else if (*(partial_in_demangled - 1) == ':' && *(partial_in_demangled - 2) == ':')
-                        {
-                            // We are on a namespace boundary, so this is also good.
-                            return true;
-                        }
-                        else
-                            return false;
-                    }
-                }
-            }
+            CompilerDeclContext actual_decl_ctx = dwarf_ast->GetDeclContextContainingUIDFromDWARF (die);
+            if (actual_decl_ctx)
+                return actual_decl_ctx == *decl_ctx;
         }
     }
-    
-    return true;
+    return false;
 }
 
 uint32_t
-SymbolFileDWARF::FindFunctions (const ConstString &name, 
-                                const lldb_private::ClangNamespaceDecl *namespace_decl, 
+SymbolFileDWARF::FindFunctions (const ConstString &name,
+                                const CompilerDeclContext *parent_decl_ctx,
                                 uint32_t name_type_mask,
                                 bool include_inlines,
                                 bool append, 
@@ -3854,7 +2591,7 @@ SymbolFileDWARF::FindFunctions (const ConstString &name,
     if (!append)
         sc_list.Clear();
     
-    if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl))
+    if (!DeclContextMatchesThisSymbolFile(parent_decl_ctx))
         return 0;
         
     // If name is empty then we won't find anything.
@@ -3872,7 +2609,6 @@ SymbolFileDWARF::FindFunctions (const ConstString &name,
     if (info == NULL)
         return 0;
 
-    DWARFCompileUnit *dwarf_cu = NULL;
     std::set<const DWARFDebugInfoEntry *> resolved_dies;
     if (m_using_apple_tables)
     {
@@ -3891,30 +2627,30 @@ SymbolFileDWARF::FindFunctions (const ConstString &name,
                 num_matches = m_apple_names_ap->FindByName (name_cstr, die_offsets);
                 for (uint32_t i = 0; i < num_matches; i++)
                 {
-                    const dw_offset_t die_offset = die_offsets[i];
-                    const DWARFDebugInfoEntry *die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
+                    const DIERef& die_ref = die_offsets[i];
+                    DWARFDIE die = info->GetDIE (die_ref);
                     if (die)
                     {
-                        if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
-                            continue;
-                        
-                        if (resolved_dies.find(die) == resolved_dies.end())
+                        if (!DIEInDeclContext(parent_decl_ctx, die))
+                            continue; // The containing decl contexts don't match
+
+                        if (resolved_dies.find(die.GetDIE()) == resolved_dies.end())
                         {
-                            if (ResolveFunction (dwarf_cu, die, include_inlines, sc_list))
-                                resolved_dies.insert(die);
+                            if (ResolveFunction (die, include_inlines, sc_list))
+                                resolved_dies.insert(die.GetDIE());
                         }
                     }
                     else
                     {
                         GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')", 
-                                                                                   die_offset, name_cstr);
+                                                                                   die_ref.die_offset, name_cstr);
                     }                                    
                 }
             }
 
             if (name_type_mask & eFunctionNameTypeSelector)
             {
-                if (namespace_decl && *namespace_decl)
+                if (parent_decl_ctx && parent_decl_ctx->IsValid())
                     return 0; // no selectors in namespaces
                     
                 num_matches = m_apple_names_ap->FindByName (name_cstr, die_offsets);
@@ -3923,30 +2659,30 @@ SymbolFileDWARF::FindFunctions (const ConstString &name,
                 
                 for (uint32_t i = 0; i < num_matches; i++)
                 {
-                    const dw_offset_t die_offset = die_offsets[i];
-                    const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
+                    const DIERef& die_ref = die_offsets[i];
+                    DWARFDIE die = info->GetDIE (die_ref);
                     if (die)
                     {
-                        const char *die_name = die->GetName(this, dwarf_cu);
-                        if (ObjCLanguageRuntime::IsPossibleObjCMethodName(die_name))
+                        const char *die_name = die.GetName();
+                        if (ObjCLanguage::IsPossibleObjCMethodName(die_name))
                         {
-                            if (resolved_dies.find(die) == resolved_dies.end())
+                            if (resolved_dies.find(die.GetDIE()) == resolved_dies.end())
                             {
-                                if (ResolveFunction (dwarf_cu, die, include_inlines, sc_list))
-                                    resolved_dies.insert(die);
+                                if (ResolveFunction (die, include_inlines, sc_list))
+                                    resolved_dies.insert(die.GetDIE());
                             }
                         }
                     }
                     else
                     {
                         GetObjectFile()->GetModule()->ReportError ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')",
-                                                                   die_offset, name_cstr);
+                                                                   die_ref.die_offset, name_cstr);
                     }                                    
                 }
                 die_offsets.clear();
             }
             
-            if (((name_type_mask & eFunctionNameTypeMethod) && !namespace_decl) || name_type_mask & eFunctionNameTypeBase)
+            if (((name_type_mask & eFunctionNameTypeMethod) && !parent_decl_ctx) || name_type_mask & eFunctionNameTypeBase)
             {
                 // The apple_names table stores just the "base name" of C++ methods in the table.  So we have to
                 // extract the base name, look that up, and if there is any other information in the name we were
@@ -3957,16 +2693,16 @@ SymbolFileDWARF::FindFunctions (const ConstString &name,
                 
                 for (uint32_t i = 0; i < num_matches; i++)
                 {
-                    const dw_offset_t die_offset = die_offsets[i];
-                    const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
+                    const DIERef& die_ref = die_offsets[i];
+                    DWARFDIE die = info->GetDIE (die_ref);
                     if (die)
                     {
-                        if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
-                            continue;
+                        if (!DIEInDeclContext(parent_decl_ctx, die))
+                            continue; // The containing decl contexts don't match
+
 
                         // If we get to here, the die is good, and we should add it:
-                        if (resolved_dies.find(die) == resolved_dies.end())
-                        if (ResolveFunction (dwarf_cu, die, include_inlines, sc_list))
+                        if (resolved_dies.find(die.GetDIE()) == resolved_dies.end() && ResolveFunction (die, include_inlines, sc_list))
                         {
                             bool keep_die = true;
                             if ((name_type_mask & (eFunctionNameTypeBase|eFunctionNameTypeMethod)) != (eFunctionNameTypeBase|eFunctionNameTypeMethod))
@@ -3986,8 +2722,8 @@ SymbolFileDWARF::FindFunctions (const ConstString &name,
                                         
                                         if (type)
                                         {
-                                            clang::DeclContext* decl_ctx = GetClangDeclContextContainingTypeUID (type->GetID());
-                                            if (decl_ctx->isRecord())
+                                            CompilerDeclContext decl_ctx = GetDeclContextContainingUID (type->GetID());
+                                            if (decl_ctx.IsStructUnionOrClass())
                                             {
                                                 if (name_type_mask & eFunctionNameTypeBase)
                                                 {
@@ -4007,19 +2743,19 @@ SymbolFileDWARF::FindFunctions (const ConstString &name,
                                         else
                                         {
                                             GetObjectFile()->GetModule()->ReportWarning ("function at die offset 0x%8.8x had no function type",
-                                                                                         die_offset);
+                                                                                         die_ref.die_offset);
                                         }
                                     }
                                 }
                             }
                             if (keep_die)
-                                resolved_dies.insert(die);
+                                resolved_dies.insert(die.GetDIE());
                         }
                     }
                     else
                     {
                         GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')",
-                                                                                   die_offset, name_cstr);
+                                                                                   die_ref.die_offset, name_cstr);
                     }                                    
                 }
                 die_offsets.clear();
@@ -4046,10 +2782,10 @@ SymbolFileDWARF::FindFunctions (const ConstString &name,
             // TODO: The arch in the object file isn't correct for MSVC
             // binaries on windows, we should find a way to make it
             // correct and handle those symbols as well.
-            if (sc_list.GetSize() == 0)
+            if (sc_list.GetSize() == original_size)
             {
                 ArchSpec arch;
-                if (!namespace_decl &&
+                if (!parent_decl_ctx &&
                     GetObjectFile()->GetArchitecture(arch) &&
                     (arch.GetTriple().isOSFreeBSD() || arch.GetTriple().isOSLinux() ||
                      arch.GetMachine() == llvm::Triple::hexagon))
@@ -4076,24 +2812,22 @@ SymbolFileDWARF::FindFunctions (const ConstString &name,
             }
         }
         DIEArray die_offsets;
-        DWARFCompileUnit *dwarf_cu = NULL;
-        
         if (name_type_mask & eFunctionNameTypeBase)
         {
             uint32_t num_base = m_function_basename_index.Find(name, die_offsets);
             for (uint32_t i = 0; i < num_base; i++)
             {
-                const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offsets[i], &dwarf_cu);
+                DWARFDIE die = info->GetDIE (die_offsets[i]);
                 if (die)
                 {
-                    if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
-                        continue;
-                    
+                    if (!DIEInDeclContext(parent_decl_ctx, die))
+                        continue; // The containing decl contexts don't match
+
                     // If we get to here, the die is good, and we should add it:
-                    if (resolved_dies.find(die) == resolved_dies.end())
+                    if (resolved_dies.find(die.GetDIE()) == resolved_dies.end())
                     {
-                        if (ResolveFunction (dwarf_cu, die, include_inlines, sc_list))
-                            resolved_dies.insert(die);
+                        if (ResolveFunction (die, include_inlines, sc_list))
+                            resolved_dies.insert(die.GetDIE());
                     }
                 }
             }
@@ -4102,21 +2836,21 @@ SymbolFileDWARF::FindFunctions (const ConstString &name,
         
         if (name_type_mask & eFunctionNameTypeMethod)
         {
-            if (namespace_decl && *namespace_decl)
+            if (parent_decl_ctx && parent_decl_ctx->IsValid())
                 return 0; // no methods in namespaces
 
             uint32_t num_base = m_function_method_index.Find(name, die_offsets);
             {
                 for (uint32_t i = 0; i < num_base; i++)
                 {
-                    const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offsets[i], &dwarf_cu);
+                    DWARFDIE die = info->GetDIE (die_offsets[i]);
                     if (die)
                     {
                         // If we get to here, the die is good, and we should add it:
-                        if (resolved_dies.find(die) == resolved_dies.end())
+                        if (resolved_dies.find(die.GetDIE()) == resolved_dies.end())
                         {
-                            if (ResolveFunction (dwarf_cu, die, include_inlines, sc_list))
-                                resolved_dies.insert(die);
+                            if (ResolveFunction (die, include_inlines, sc_list))
+                                resolved_dies.insert(die.GetDIE());
                         }
                     }
                 }
@@ -4124,7 +2858,7 @@ SymbolFileDWARF::FindFunctions (const ConstString &name,
             die_offsets.clear();
         }
 
-        if ((name_type_mask & eFunctionNameTypeSelector) && (!namespace_decl || !*namespace_decl))
+        if ((name_type_mask & eFunctionNameTypeSelector) && (!parent_decl_ctx || !parent_decl_ctx->IsValid()))
         {
             FindFunctions (name, m_function_selector_index, include_inlines, sc_list);
         }
@@ -4196,10 +2930,10 @@ SymbolFileDWARF::FindFunctions(const RegularExpression& regex, bool include_inli
 uint32_t
 SymbolFileDWARF::FindTypes (const SymbolContext& sc, 
                             const ConstString &name, 
-                            const lldb_private::ClangNamespaceDecl *namespace_decl, 
+                            const CompilerDeclContext *parent_decl_ctx, 
                             bool append, 
                             uint32_t max_matches, 
-                            TypeList& types)
+                            TypeMap& types)
 {
     DWARFDebugInfo* info = DebugInfo();
     if (info == NULL)
@@ -4209,16 +2943,16 @@ SymbolFileDWARF::FindTypes (const SymbolContext& sc,
 
     if (log)
     {
-        if (namespace_decl)
+        if (parent_decl_ctx)
             GetObjectFile()->GetModule()->LogMessage (log,
-                                                      "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(%p) \"%s\", append=%u, max_matches=%u, type_list)", 
+                                                      "SymbolFileDWARF::FindTypes (sc, name=\"%s\", parent_decl_ctx = %p (\"%s\"), append=%u, max_matches=%u, type_list)",
                                                       name.GetCString(),
-                                                      static_cast<void*>(namespace_decl->GetNamespaceDecl()),
-                                                      namespace_decl->GetQualifiedName().c_str(),
+                                                      static_cast<const void*>(parent_decl_ctx),
+                                                      parent_decl_ctx->GetName().AsCString("<NULL>"),
                                                       append, max_matches);
         else
             GetObjectFile()->GetModule()->LogMessage (log,
-                                                      "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(NULL), append=%u, max_matches=%u, type_list)",
+                                                      "SymbolFileDWARF::FindTypes (sc, name=\"%s\", parent_decl_ctx = NULL, append=%u, max_matches=%u, type_list)",
                                                       name.GetCString(), append,
                                                       max_matches);
     }
@@ -4227,7 +2961,7 @@ SymbolFileDWARF::FindTypes (const SymbolContext& sc,
     if (!append)
         types.Clear();
 
-    if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl))
+    if (!DeclContextMatchesThisSymbolFile(parent_decl_ctx))
         return 0;
 
     DIEArray die_offsets;
@@ -4253,20 +2987,18 @@ SymbolFileDWARF::FindTypes (const SymbolContext& sc,
     if (num_die_matches)
     {
         const uint32_t initial_types_size = types.GetSize();
-        DWARFCompileUnit* dwarf_cu = NULL;
-        const DWARFDebugInfoEntry* die = NULL;
         DWARFDebugInfo* debug_info = DebugInfo();
         for (size_t i=0; i<num_die_matches; ++i)
         {
-            const dw_offset_t die_offset = die_offsets[i];
-            die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
+            const DIERef& die_ref = die_offsets[i];
+            DWARFDIE die = debug_info->GetDIE (die_ref);
 
             if (die)
             {
-                if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
-                    continue;
+                if (!DIEInDeclContext(parent_decl_ctx, die))
+                    continue; // The containing decl contexts don't match
 
-                Type *matching_type = ResolveType (dwarf_cu, die);
+                Type *matching_type = ResolveType (die, true, true);
                 if (matching_type)
                 {
                     // We found a type pointer, now find the shared pointer form our type list
@@ -4280,7 +3012,7 @@ SymbolFileDWARF::FindTypes (const SymbolContext& sc,
                 if (m_using_apple_tables)
                 {
                     GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n",
-                                                                               die_offset, name.GetCString());
+                                                                               die_ref.die_offset, name.GetCString());
                 }
             }            
 
@@ -4288,20 +3020,20 @@ SymbolFileDWARF::FindTypes (const SymbolContext& sc,
         const uint32_t num_matches = types.GetSize() - initial_types_size;
         if (log && num_matches)
         {
-            if (namespace_decl)
+            if (parent_decl_ctx)
             {
                 GetObjectFile()->GetModule()->LogMessage (log,
-                                                          "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(%p) \"%s\", append=%u, max_matches=%u, type_list) => %u", 
+                                                          "SymbolFileDWARF::FindTypes (sc, name=\"%s\", parent_decl_ctx = %p (\"%s\"), append=%u, max_matches=%u, type_list) => %u",
                                                           name.GetCString(),
-                                                          static_cast<void*>(namespace_decl->GetNamespaceDecl()),
-                                                          namespace_decl->GetQualifiedName().c_str(),
+                                                          static_cast<const void*>(parent_decl_ctx),
+                                                          parent_decl_ctx->GetName().AsCString("<NULL>"),
                                                           append, max_matches,
                                                           num_matches);
             }
             else
             {
                 GetObjectFile()->GetModule()->LogMessage (log,
-                                                          "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(NULL), append=%u, max_matches=%u, type_list) => %u",
+                                                          "SymbolFileDWARF::FindTypes (sc, name=\"%s\", parent_decl_ctx = NULL, append=%u, max_matches=%u, type_list) => %u",
                                                           name.GetCString(), 
                                                           append, max_matches,
                                                           num_matches);
@@ -4309,14 +3041,112 @@ SymbolFileDWARF::FindTypes (const SymbolContext& sc,
         }
         return num_matches;
     }
+    else
+    {
+        UpdateExternalModuleListIfNeeded();
+
+        for (const auto &pair : m_external_type_modules)
+        {
+            ModuleSP external_module_sp = pair.second;
+            if (external_module_sp)
+            {
+                SymbolVendor *sym_vendor = external_module_sp->GetSymbolVendor();
+                if (sym_vendor)
+                {
+                    const uint32_t num_external_matches = sym_vendor->FindTypes (sc,
+                                                                                 name,
+                                                                                 parent_decl_ctx,
+                                                                                 append,
+                                                                                 max_matches,
+                                                                                 types);
+                    if (num_external_matches)
+                        return num_external_matches;
+                }
+            }
+        }
+    }
+
+    return 0;
+}
+
+
+size_t
+SymbolFileDWARF::FindTypes (const std::vector<CompilerContext> &context,
+                            bool append,
+                            TypeMap& types)
+{
+    if (!append)
+        types.Clear();
+
+    if (context.empty())
+        return 0;
+
+    DIEArray die_offsets;
+
+    ConstString name = context.back().name;
+
+    if (m_using_apple_tables)
+    {
+        if (m_apple_types_ap.get())
+        {
+            const char *name_cstr = name.GetCString();
+            m_apple_types_ap->FindByName (name_cstr, die_offsets);
+        }
+    }
+    else
+    {
+        if (!m_indexed)
+            Index ();
+
+        m_type_index.Find (name, die_offsets);
+    }
+
+    const size_t num_die_matches = die_offsets.size();
+
+    if (num_die_matches)
+    {
+        size_t num_matches = 0;
+        DWARFDebugInfo* debug_info = DebugInfo();
+        for (size_t i=0; i<num_die_matches; ++i)
+        {
+            const DIERef& die_ref = die_offsets[i];
+            DWARFDIE die = debug_info->GetDIE (die_ref);
+
+            if (die)
+            {
+                std::vector<CompilerContext> die_context;
+                die.GetDWOContext(die_context);
+                if (die_context != context)
+                    continue;
+
+                Type *matching_type = ResolveType (die, true, true);
+                if (matching_type)
+                {
+                    // We found a type pointer, now find the shared pointer form our type list
+                    types.InsertUnique (matching_type->shared_from_this());
+                    ++num_matches;
+                }
+            }
+            else
+            {
+                if (m_using_apple_tables)
+                {
+                    GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n",
+                                                                               die_ref.die_offset, name.GetCString());
+                }
+            }
+
+        }
+        return num_matches;
+    }
     return 0;
 }
 
 
-ClangNamespaceDecl
+CompilerDeclContext
 SymbolFileDWARF::FindNamespace (const SymbolContext& sc, 
                                 const ConstString &name,
-                                const lldb_private::ClangNamespaceDecl *parent_namespace_decl)
+                                const CompilerDeclContext *parent_decl_ctx)
 {
     Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
     
@@ -4326,11 +3156,13 @@ SymbolFileDWARF::FindNamespace (const SymbolContext& sc,
                                                   "SymbolFileDWARF::FindNamespace (sc, name=\"%s\")", 
                                                   name.GetCString());
     }
-    
-    if (!NamespaceDeclMatchesThisSymbolFile(parent_namespace_decl))
-        return ClangNamespaceDecl();
 
-    ClangNamespaceDecl namespace_decl;
+    CompilerDeclContext namespace_decl_ctx;
+
+    if (!DeclContextMatchesThisSymbolFile(parent_decl_ctx))
+        return namespace_decl_ctx;
+
+
     DWARFDebugInfo* info = DebugInfo();
     if (info)
     {
@@ -4354,28 +3186,26 @@ SymbolFileDWARF::FindNamespace (const SymbolContext& sc,
             m_namespace_index.Find (name, die_offsets);
         }
         
-        DWARFCompileUnit* dwarf_cu = NULL;
-        const DWARFDebugInfoEntry* die = NULL;
         const size_t num_matches = die_offsets.size();
         if (num_matches)
         {
             DWARFDebugInfo* debug_info = DebugInfo();
             for (size_t i=0; i<num_matches; ++i)
             {
-                const dw_offset_t die_offset = die_offsets[i];
-                die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
-                
+                const DIERef& die_ref = die_offsets[i];
+                DWARFDIE die = debug_info->GetDIE (die_ref);
+
                 if (die)
                 {
-                    if (parent_namespace_decl && !DIEIsInNamespace (parent_namespace_decl, dwarf_cu, die))
-                        continue;
+                    if (!DIEInDeclContext (parent_decl_ctx, die))
+                        continue; // The containing decl contexts don't match
 
-                    clang::NamespaceDecl *clang_namespace_decl = ResolveNamespaceDIE (dwarf_cu, die);
-                    if (clang_namespace_decl)
+                    DWARFASTParser *dwarf_ast = die.GetDWARFParser();
+                    if (dwarf_ast)
                     {
-                        namespace_decl.SetASTContext (GetClangASTContext().getASTContext());
-                        namespace_decl.SetNamespaceDecl (clang_namespace_decl);
-                        break;
+                        namespace_decl_ctx = dwarf_ast->GetDeclContextForUIDFromDWARF (die);
+                        if (namespace_decl_ctx)
+                            break;
                     }
                 }
                 else
@@ -4383,421 +3213,50 @@ SymbolFileDWARF::FindNamespace (const SymbolContext& sc,
                     if (m_using_apple_tables)
                     {
                         GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_namespaces accelerator table had bad die 0x%8.8x for '%s')\n",
-                                                                   die_offset, name.GetCString());
+                                                                   die_ref.die_offset, name.GetCString());
                     }
                 }            
 
             }
         }
     }
-    if (log && namespace_decl.GetNamespaceDecl())
+    if (log && namespace_decl_ctx)
     {
         GetObjectFile()->GetModule()->LogMessage (log,
-                                                  "SymbolFileDWARF::FindNamespace (sc, name=\"%s\") => clang::NamespaceDecl(%p) \"%s\"",
+                                                  "SymbolFileDWARF::FindNamespace (sc, name=\"%s\") => CompilerDeclContext(%p/%p) \"%s\"",
                                                   name.GetCString(),
-                                                  static_cast<const void*>(namespace_decl.GetNamespaceDecl()),
-                                                  namespace_decl.GetQualifiedName().c_str());
-    }
-
-    return namespace_decl;
-}
-
-uint32_t
-SymbolFileDWARF::FindTypes(std::vector<dw_offset_t> die_offsets, uint32_t max_matches, TypeList& types)
-{
-    // Remember how many sc_list are in the list before we search in case
-    // we are appending the results to a variable list.
-    uint32_t original_size = types.GetSize();
-
-    const uint32_t num_die_offsets = die_offsets.size();
-    // Parse all of the types we found from the pubtypes matches
-    uint32_t i;
-    uint32_t num_matches = 0;
-    for (i = 0; i < num_die_offsets; ++i)
-    {
-        Type *matching_type = ResolveTypeUID (die_offsets[i]);
-        if (matching_type)
-        {
-            // We found a type pointer, now find the shared pointer form our type list
-            types.InsertUnique (matching_type->shared_from_this());
-            ++num_matches;
-            if (num_matches >= max_matches)
-                break;
-        }
-    }
-
-    // Return the number of variable that were appended to the list
-    return types.GetSize() - original_size;
-}
-
-
-size_t
-SymbolFileDWARF::ParseChildParameters (const SymbolContext& sc,
-                                       clang::DeclContext *containing_decl_ctx,
-                                       DWARFCompileUnit* dwarf_cu,
-                                       const DWARFDebugInfoEntry *parent_die,
-                                       bool skip_artificial,
-                                       bool &is_static,
-                                       bool &is_variadic,
-                                       std::vector<ClangASTType>& function_param_types,
-                                       std::vector<clang::ParmVarDecl*>& function_param_decls,
-                                       unsigned &type_quals) // ,
-                                       // ClangASTContext::TemplateParameterInfos &template_param_infos))
-{
-    if (parent_die == NULL)
-        return 0;
-
-    const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
-
-    size_t arg_idx = 0;
-    const DWARFDebugInfoEntry *die;
-    for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
-    {
-        dw_tag_t tag = die->Tag();
-        switch (tag)
-        {
-        case DW_TAG_formal_parameter:
-            {
-                DWARFDebugInfoEntry::Attributes attributes;
-                const size_t num_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes);
-                if (num_attributes > 0)
-                {
-                    const char *name = NULL;
-                    Declaration decl;
-                    dw_offset_t param_type_die_offset = DW_INVALID_OFFSET;
-                    bool is_artificial = false;
-                    // one of None, Auto, Register, Extern, Static, PrivateExtern
-
-                    clang::StorageClass storage = clang::SC_None;
-                    uint32_t i;
-                    for (i=0; i<num_attributes; ++i)
-                    {
-                        const dw_attr_t attr = attributes.AttributeAtIndex(i);
-                        DWARFFormValue form_value;
-                        if (attributes.ExtractFormValueAtIndex(this, i, form_value))
-                        {
-                            switch (attr)
-                            {
-                            case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
-                            case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
-                            case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
-                            case DW_AT_name:        name = form_value.AsCString(&get_debug_str_data()); break;
-                            case DW_AT_type:        param_type_die_offset = form_value.Reference(); break;
-                            case DW_AT_artificial:  is_artificial = form_value.Boolean(); break;
-                            case DW_AT_location:
-    //                          if (form_value.BlockData())
-    //                          {
-    //                              const DWARFDataExtractor& debug_info_data = debug_info();
-    //                              uint32_t block_length = form_value.Unsigned();
-    //                              DWARFDataExtractor location(debug_info_data, form_value.BlockData() - debug_info_data.GetDataStart(), block_length);
-    //                          }
-    //                          else
-    //                          {
-    //                          }
-    //                          break;
-                            case DW_AT_const_value:
-                            case DW_AT_default_value:
-                            case DW_AT_description:
-                            case DW_AT_endianity:
-                            case DW_AT_is_optional:
-                            case DW_AT_segment:
-                            case DW_AT_variable_parameter:
-                            default:
-                            case DW_AT_abstract_origin:
-                            case DW_AT_sibling:
-                                break;
-                            }
-                        }
-                    }
-
-                    bool skip = false;
-                    if (skip_artificial)
-                    {
-                        if (is_artificial)
-                        {
-                            // In order to determine if a C++ member function is
-                            // "const" we have to look at the const-ness of "this"...
-                            // Ugly, but that
-                            if (arg_idx == 0)
-                            {
-                                if (DeclKindIsCXXClass(containing_decl_ctx->getDeclKind()))
-                                {                                    
-                                    // Often times compilers omit the "this" name for the
-                                    // specification DIEs, so we can't rely upon the name
-                                    // being in the formal parameter DIE...
-                                    if (name == NULL || ::strcmp(name, "this")==0)
-                                    {
-                                        Type *this_type = ResolveTypeUID (param_type_die_offset);
-                                        if (this_type)
-                                        {                              
-                                            uint32_t encoding_mask = this_type->GetEncodingMask();
-                                            if (encoding_mask & Type::eEncodingIsPointerUID)
-                                            {
-                                                is_static = false;
-                                                
-                                                if (encoding_mask & (1u << Type::eEncodingIsConstUID))
-                                                    type_quals |= clang::Qualifiers::Const;
-                                                if (encoding_mask & (1u << Type::eEncodingIsVolatileUID))
-                                                    type_quals |= clang::Qualifiers::Volatile;
-                                            }
-                                        }
-                                    }
-                                }
-                            }
-                            skip = true;
-                        }
-                        else
-                        {
-
-                            // HACK: Objective C formal parameters "self" and "_cmd" 
-                            // are not marked as artificial in the DWARF...
-                            CompileUnit *comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
-                            if (comp_unit)
-                            {
-                                switch (comp_unit->GetLanguage())
-                                {
-                                    case eLanguageTypeObjC:
-                                    case eLanguageTypeObjC_plus_plus:
-                                        if (name && name[0] && (strcmp (name, "self") == 0 || strcmp (name, "_cmd") == 0))
-                                            skip = true;
-                                        break;
-                                    default:
-                                        break;
-                                }
-                            }
-                        }
-                    }
-
-                    if (!skip)
-                    {
-                        Type *type = ResolveTypeUID(param_type_die_offset);
-                        if (type)
-                        {
-                            function_param_types.push_back (type->GetClangForwardType());
-
-                            clang::ParmVarDecl *param_var_decl = GetClangASTContext().CreateParameterDeclaration (name, 
-                                                                                                                  type->GetClangForwardType(), 
-                                                                                                                  storage);
-                            assert(param_var_decl);
-                            function_param_decls.push_back(param_var_decl);
-                            
-                            GetClangASTContext().SetMetadataAsUserID (param_var_decl, MakeUserID(die->GetOffset()));
-                        }
-                    }
-                }
-                arg_idx++;
-            }
-            break;
-
-        case DW_TAG_unspecified_parameters:
-            is_variadic = true;
-            break;
-
-        case DW_TAG_template_type_parameter:
-        case DW_TAG_template_value_parameter:
-            // The one caller of this was never using the template_param_infos,
-            // and the local variable was taking up a large amount of stack space
-            // in SymbolFileDWARF::ParseType() so this was removed. If we ever need
-            // the template params back, we can add them back.
-            // ParseTemplateDIE (dwarf_cu, die, template_param_infos);
-            break;
-
-        default:
-            break;
-        }
-    }
-    return arg_idx;
-}
-
-size_t
-SymbolFileDWARF::ParseChildEnumerators
-(
-    const SymbolContext& sc,
-    lldb_private::ClangASTType &clang_type,
-    bool is_signed,
-    uint32_t enumerator_byte_size,
-    DWARFCompileUnit* dwarf_cu,
-    const DWARFDebugInfoEntry *parent_die
-)
-{
-    if (parent_die == NULL)
-        return 0;
-
-    size_t enumerators_added = 0;
-    const DWARFDebugInfoEntry *die;
-    const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
-
-    for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
-    {
-        const dw_tag_t tag = die->Tag();
-        if (tag == DW_TAG_enumerator)
-        {
-            DWARFDebugInfoEntry::Attributes attributes;
-            const size_t num_child_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes);
-            if (num_child_attributes > 0)
-            {
-                const char *name = NULL;
-                bool got_value = false;
-                int64_t enum_value = 0;
-                Declaration decl;
-
-                uint32_t i;
-                for (i=0; i<num_child_attributes; ++i)
-                {
-                    const dw_attr_t attr = attributes.AttributeAtIndex(i);
-                    DWARFFormValue form_value;
-                    if (attributes.ExtractFormValueAtIndex(this, i, form_value))
-                    {
-                        switch (attr)
-                        {
-                        case DW_AT_const_value:
-                            got_value = true;
-                            if (is_signed)
-                                enum_value = form_value.Signed();
-                            else
-                                enum_value = form_value.Unsigned();
-                            break;
-
-                        case DW_AT_name:
-                            name = form_value.AsCString(&get_debug_str_data());
-                            break;
-
-                        case DW_AT_description:
-                        default:
-                        case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
-                        case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
-                        case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
-                        case DW_AT_sibling:
-                            break;
-                        }
-                    }
-                }
-
-                if (name && name[0] && got_value)
-                {
-                    clang_type.AddEnumerationValueToEnumerationType (clang_type.GetEnumerationIntegerType(),
-                                                                     decl,
-                                                                     name,
-                                                                     enum_value,
-                                                                     enumerator_byte_size * 8);
-                    ++enumerators_added;
-                }
-            }
-        }
+                                                  static_cast<const void*>(namespace_decl_ctx.GetTypeSystem()),
+                                                  static_cast<const void*>(namespace_decl_ctx.GetOpaqueDeclContext()),
+                                                  namespace_decl_ctx.GetName().AsCString("<NULL>"));
     }
-    return enumerators_added;
-}
-
-void
-SymbolFileDWARF::ParseChildArrayInfo
-(
-    const SymbolContext& sc,
-    DWARFCompileUnit* dwarf_cu,
-    const DWARFDebugInfoEntry *parent_die,
-    int64_t& first_index,
-    std::vector<uint64_t>& element_orders,
-    uint32_t& byte_stride,
-    uint32_t& bit_stride
-)
-{
-    if (parent_die == NULL)
-        return;
-
-    const DWARFDebugInfoEntry *die;
-    const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
-    for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
-    {
-        const dw_tag_t tag = die->Tag();
-        switch (tag)
-        {
-        case DW_TAG_subrange_type:
-            {
-                DWARFDebugInfoEntry::Attributes attributes;
-                const size_t num_child_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes);
-                if (num_child_attributes > 0)
-                {
-                    uint64_t num_elements = 0;
-                    uint64_t lower_bound = 0;
-                    uint64_t upper_bound = 0;
-                    bool upper_bound_valid = false;
-                    uint32_t i;
-                    for (i=0; i<num_child_attributes; ++i)
-                    {
-                        const dw_attr_t attr = attributes.AttributeAtIndex(i);
-                        DWARFFormValue form_value;
-                        if (attributes.ExtractFormValueAtIndex(this, i, form_value))
-                        {
-                            switch (attr)
-                            {
-                            case DW_AT_name:
-                                break;
-
-                            case DW_AT_count:
-                                num_elements = form_value.Unsigned();
-                                break;
-
-                            case DW_AT_bit_stride:
-                                bit_stride = form_value.Unsigned();
-                                break;
-
-                            case DW_AT_byte_stride:
-                                byte_stride = form_value.Unsigned();
-                                break;
-
-                            case DW_AT_lower_bound:
-                                lower_bound = form_value.Unsigned();
-                                break;
-
-                            case DW_AT_upper_bound:
-                                upper_bound_valid = true;
-                                upper_bound = form_value.Unsigned();
-                                break;
-
-                            default:
-                            case DW_AT_abstract_origin:
-                            case DW_AT_accessibility:
-                            case DW_AT_allocated:
-                            case DW_AT_associated:
-                            case DW_AT_data_location:
-                            case DW_AT_declaration:
-                            case DW_AT_description:
-                            case DW_AT_sibling:
-                            case DW_AT_threads_scaled:
-                            case DW_AT_type:
-                            case DW_AT_visibility:
-                                break;
-                            }
-                        }
-                    }
 
-                    if (num_elements == 0)
-                    {
-                        if (upper_bound_valid && upper_bound >= lower_bound)
-                            num_elements = upper_bound - lower_bound + 1;
-                    }
-
-                    element_orders.push_back (num_elements);
-                }
-            }
-            break;
-        }
-    }
+    return namespace_decl_ctx;
 }
 
 TypeSP
-SymbolFileDWARF::GetTypeForDIE (DWARFCompileUnit *dwarf_cu, const DWARFDebugInfoEntry* die)
+SymbolFileDWARF::GetTypeForDIE (const DWARFDIE &die, bool resolve_function_context)
 {
     TypeSP type_sp;
-    if (die != NULL)
+    if (die)
     {
-        assert(dwarf_cu != NULL);
-        Type *type_ptr = m_die_to_type.lookup (die);
+        Type *type_ptr = GetDIEToType().lookup (die.GetDIE());
         if (type_ptr == NULL)
         {
-            CompileUnit* lldb_cu = GetCompUnitForDWARFCompUnit(dwarf_cu);
+            CompileUnit* lldb_cu = GetCompUnitForDWARFCompUnit(die.GetCU());
             assert (lldb_cu);
             SymbolContext sc(lldb_cu);
-            type_sp = ParseType(sc, dwarf_cu, die, NULL);
+            const DWARFDebugInfoEntry* parent_die = die.GetParent().GetDIE();
+            while (parent_die != nullptr)
+                {
+                    if (parent_die->Tag() == DW_TAG_subprogram)
+                        break;
+                    parent_die = parent_die->GetParent();
+                }
+            SymbolContext sc_backup = sc;
+            if (resolve_function_context && parent_die != nullptr && !GetFunction(DWARFDIE(die.GetCU(),parent_die), sc))
+                sc = sc_backup;
+
+            type_sp = ParseType(sc, die, NULL);
         }
         else if (type_ptr != DIE_IS_BEING_PARSED)
         {
@@ -4809,215 +3268,57 @@ SymbolFileDWARF::GetTypeForDIE (DWARFCompileUnit *dwarf_cu, const DWARFDebugInfo
     return type_sp;
 }
 
-clang::DeclContext *
-SymbolFileDWARF::GetClangDeclContextContainingDIEOffset (dw_offset_t die_offset)
-{
-    if (die_offset != DW_INVALID_OFFSET)
-    {
-        DWARFCompileUnitSP cu_sp;
-        const DWARFDebugInfoEntry* die = DebugInfo()->GetDIEPtr(die_offset, &cu_sp);
-        return GetClangDeclContextContainingDIE (cu_sp.get(), die, NULL);
-    }
-    return NULL;
-}
-
-clang::DeclContext *
-SymbolFileDWARF::GetClangDeclContextForDIEOffset (const SymbolContext &sc, dw_offset_t die_offset)
-{
-    if (die_offset != DW_INVALID_OFFSET)
-    {
-        DWARFDebugInfo* debug_info = DebugInfo();
-        if (debug_info)
-        {
-            DWARFCompileUnitSP cu_sp;
-            const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(die_offset, &cu_sp);
-            if (die)
-                return GetClangDeclContextForDIE (sc, cu_sp.get(), die);
-        }
-    }
-    return NULL;
-}
-
-clang::NamespaceDecl *
-SymbolFileDWARF::ResolveNamespaceDIE (DWARFCompileUnit *dwarf_cu, const DWARFDebugInfoEntry *die)
-{
-    if (die && die->Tag() == DW_TAG_namespace)
-    {
-        // See if we already parsed this namespace DIE and associated it with a
-        // uniqued namespace declaration
-        clang::NamespaceDecl *namespace_decl = static_cast<clang::NamespaceDecl *>(m_die_to_decl_ctx[die]);
-        if (namespace_decl)
-            return namespace_decl;
-        else
-        {
-            const char *namespace_name = die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_name, NULL);
-            clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, NULL);
-            namespace_decl = GetClangASTContext().GetUniqueNamespaceDeclaration (namespace_name, containing_decl_ctx);
-            Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
-            if (log)
-            {
-                if (namespace_name)
-                {
-                    GetObjectFile()->GetModule()->LogMessage (log,
-                                                              "ASTContext => %p: 0x%8.8" PRIx64 ": DW_TAG_namespace with DW_AT_name(\"%s\") => clang::NamespaceDecl *%p (original = %p)",
-                                                              static_cast<void*>(GetClangASTContext().getASTContext()),
-                                                              MakeUserID(die->GetOffset()),
-                                                              namespace_name,
-                                                              static_cast<void*>(namespace_decl),
-                                                              static_cast<void*>(namespace_decl->getOriginalNamespace()));
-                }
-                else
-                {
-                    GetObjectFile()->GetModule()->LogMessage (log,
-                                                              "ASTContext => %p: 0x%8.8" PRIx64 ": DW_TAG_namespace (anonymous) => clang::NamespaceDecl *%p (original = %p)",
-                                                              static_cast<void*>(GetClangASTContext().getASTContext()),
-                                                              MakeUserID(die->GetOffset()),
-                                                              static_cast<void*>(namespace_decl),
-                                                              static_cast<void*>(namespace_decl->getOriginalNamespace()));
-                }
-            }
-
-            if (namespace_decl)
-                LinkDeclContextToDIE((clang::DeclContext*)namespace_decl, die);
-            return namespace_decl;
-        }
-    }
-    return NULL;
-}
-
-clang::DeclContext *
-SymbolFileDWARF::GetClangDeclContextForDIE (const SymbolContext &sc, DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
-{
-    clang::DeclContext *clang_decl_ctx = GetCachedClangDeclContextForDIE (die);
-    if (clang_decl_ctx)
-        return clang_decl_ctx;
-    // If this DIE has a specification, or an abstract origin, then trace to those.
-        
-    dw_offset_t die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_specification, DW_INVALID_OFFSET);
-    if (die_offset != DW_INVALID_OFFSET)
-        return GetClangDeclContextForDIEOffset (sc, die_offset);
-    
-    die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_abstract_origin, DW_INVALID_OFFSET);
-    if (die_offset != DW_INVALID_OFFSET)
-        return GetClangDeclContextForDIEOffset (sc, die_offset);
-    
-    Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
-    if (log)
-        GetObjectFile()->GetModule()->LogMessage(log, "SymbolFileDWARF::GetClangDeclContextForDIE (die = 0x%8.8x) %s '%s'", die->GetOffset(), DW_TAG_value_to_name(die->Tag()), die->GetName(this, cu));
-    // This is the DIE we want.  Parse it, then query our map.
-    bool assert_not_being_parsed = true;
-    ResolveTypeUID (cu, die, assert_not_being_parsed);    
-
-    clang_decl_ctx = GetCachedClangDeclContextForDIE (die);
-
-    return clang_decl_ctx;
-}
-
-clang::DeclContext *
-SymbolFileDWARF::GetClangDeclContextContainingDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die, const DWARFDebugInfoEntry **decl_ctx_die_copy)
-{
-    if (m_clang_tu_decl == NULL)
-        m_clang_tu_decl = GetClangASTContext().getASTContext()->getTranslationUnitDecl();
-
-    const DWARFDebugInfoEntry *decl_ctx_die = GetDeclContextDIEContainingDIE (cu, die);
-
-    if (decl_ctx_die_copy)
-        *decl_ctx_die_copy = decl_ctx_die;
-    
-    if (decl_ctx_die)
-    {
-
-        DIEToDeclContextMap::iterator pos = m_die_to_decl_ctx.find (decl_ctx_die);
-        if (pos != m_die_to_decl_ctx.end())
-            return pos->second;
-
-        switch (decl_ctx_die->Tag())
-        {
-        case DW_TAG_compile_unit:
-            return m_clang_tu_decl;
-
-        case DW_TAG_namespace:
-            return ResolveNamespaceDIE (cu, decl_ctx_die);
-            break;
-
-        case DW_TAG_structure_type:
-        case DW_TAG_union_type:
-        case DW_TAG_class_type:
-            {
-                Type* type = ResolveType (cu, decl_ctx_die);
-                if (type)
-                {
-                    clang::DeclContext *decl_ctx = type->GetClangForwardType().GetDeclContextForType ();
-                    if (decl_ctx)
-                    {
-                        LinkDeclContextToDIE (decl_ctx, decl_ctx_die);
-                        if (decl_ctx)
-                            return decl_ctx;
-                    }
-                }
-            }
-            break;
-
-        default:
-            break;
-        }
-    }
-    return m_clang_tu_decl;
-}
-
 
-const DWARFDebugInfoEntry *
-SymbolFileDWARF::GetDeclContextDIEContainingDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
+DWARFDIE
+SymbolFileDWARF::GetDeclContextDIEContainingDIE (const DWARFDIE &orig_die)
 {
-    if (cu && die)
+    if (orig_die)
     {
-        const DWARFDebugInfoEntry * const decl_die = die;
+        DWARFDIE die = orig_die;
     
-        while (die != NULL)
+        while (die)
         {
             // If this is the original DIE that we are searching for a declaration 
             // for, then don't look in the cache as we don't want our own decl 
             // context to be our decl context...
-            if (decl_die != die)
+            if (orig_die != die)
             {            
-                switch (die->Tag())
+                switch (die.Tag())
                 {
                     case DW_TAG_compile_unit:
                     case DW_TAG_namespace:
                     case DW_TAG_structure_type:
                     case DW_TAG_union_type:
                     case DW_TAG_class_type:
+                    case DW_TAG_lexical_block:
+                    case DW_TAG_subprogram:
                         return die;
                         
                     default:
                         break;
                 }
             }
-            
-            dw_offset_t die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_specification, DW_INVALID_OFFSET);
-            if (die_offset != DW_INVALID_OFFSET)
+
+            DWARFDIE spec_die = die.GetReferencedDIE(DW_AT_specification);
+            if (spec_die)
             {
-                DWARFCompileUnit *spec_cu = cu;
-                const DWARFDebugInfoEntry *spec_die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &spec_cu);
-                const DWARFDebugInfoEntry *spec_die_decl_ctx_die = GetDeclContextDIEContainingDIE (spec_cu, spec_die);
-                if (spec_die_decl_ctx_die)
-                    return spec_die_decl_ctx_die;
+                DWARFDIE decl_ctx_die = GetDeclContextDIEContainingDIE(spec_die);
+                if (decl_ctx_die)
+                    return decl_ctx_die;
             }
-            
-            die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_abstract_origin, DW_INVALID_OFFSET);
-            if (die_offset != DW_INVALID_OFFSET)
+
+            DWARFDIE abs_die = die.GetReferencedDIE(DW_AT_abstract_origin);
+            if (abs_die)
             {
-                DWARFCompileUnit *abs_cu = cu;
-                const DWARFDebugInfoEntry *abs_die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &abs_cu);
-                const DWARFDebugInfoEntry *abs_die_decl_ctx_die = GetDeclContextDIEContainingDIE (abs_cu, abs_die);
-                if (abs_die_decl_ctx_die)
-                    return abs_die_decl_ctx_die;
+                DWARFDIE decl_ctx_die = GetDeclContextDIEContainingDIE(abs_die);
+                if (decl_ctx_die)
+                    return decl_ctx_die;
             }
-            
-            die = die->GetParent();
+
+            die = die.GetParent();
         }
     }
-    return NULL;
+    return DWARFDIE();
 }
 
 
@@ -5075,7 +3376,7 @@ SymbolFileDWARF::Supports_DW_AT_APPLE_objc_complete_type (DWARFCompileUnit *cu)
 // This function can be used when a DIE is found that is a forward declaration
 // DIE and we want to try and find a type that has the complete definition.
 TypeSP
-SymbolFileDWARF::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry *die, 
+SymbolFileDWARF::FindCompleteObjCDefinitionTypeForDIE (const DWARFDIE &die,
                                                        const ConstString &type_name,
                                                        bool must_be_implementation)
 {
@@ -5105,15 +3406,13 @@ SymbolFileDWARF::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry
     
     const size_t num_matches = die_offsets.size();
     
-    DWARFCompileUnit* type_cu = NULL;
-    const DWARFDebugInfoEntry* type_die = NULL;
     if (num_matches)
     {
         DWARFDebugInfo* debug_info = DebugInfo();
         for (size_t i=0; i<num_matches; ++i)
         {
-            const dw_offset_t die_offset = die_offsets[i];
-            type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu);
+            const DIERef& die_ref = die_offsets[i];
+            DWARFDIE type_die = debug_info->GetDIE (die_ref);
             
             if (type_die)
             {
@@ -5122,7 +3421,7 @@ SymbolFileDWARF::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry
                 // Don't try and resolve the DIE we are looking for with the DIE itself!
                 if (type_die != die)
                 {
-                    switch (type_die->Tag())
+                    switch (type_die.Tag())
                     {
                         case DW_TAG_class_type:
                         case DW_TAG_structure_type:
@@ -5135,22 +3434,22 @@ SymbolFileDWARF::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry
                 
                 if (try_resolving_type)
                 {
-                    if (must_be_implementation && type_cu->Supports_DW_AT_APPLE_objc_complete_type())
-                        try_resolving_type = type_die->GetAttributeValueAsUnsigned (this, type_cu, DW_AT_APPLE_objc_complete_type, 0);
+                    if (must_be_implementation && type_die.Supports_DW_AT_APPLE_objc_complete_type())
+                        try_resolving_type = type_die.GetAttributeValueAsUnsigned (DW_AT_APPLE_objc_complete_type, 0);
                     
                     if (try_resolving_type)
                     {
-                        Type *resolved_type = ResolveType (type_cu, type_die, false);
+                        Type *resolved_type = ResolveType (type_die, false, true);
                         if (resolved_type && resolved_type != DIE_IS_BEING_PARSED)
                         {
                             DEBUG_PRINTF ("resolved 0x%8.8" PRIx64 " from %s to 0x%8.8" PRIx64 " (cu 0x%8.8" PRIx64 ")\n",
-                                          MakeUserID(die->GetOffset()), 
+                                          die.GetID(),
                                           m_obj_file->GetFileSpec().GetFilename().AsCString("<Unknown>"),
-                                          MakeUserID(type_die->GetOffset()), 
-                                          MakeUserID(type_cu->GetOffset()));
+                                          type_die.GetID(),
+                                          type_cu->GetID());
                             
                             if (die)
-                                m_die_to_type[die] = resolved_type;
+                                GetDIEToType()[die.GetDIE()] = resolved_type;
                             type_sp = resolved_type->shared_from_this();
                             break;
                         }
@@ -5162,7 +3461,7 @@ SymbolFileDWARF::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry
                 if (m_using_apple_tables)
                 {
                     GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n",
-                                                               die_offset, type_name.GetCString());
+                                                               die_ref.die_offset, type_name.GetCString());
                 }
             }            
             
@@ -5185,19 +3484,12 @@ SymbolFileDWARF::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry
 // when they don't. 
 //----------------------------------------------------------------------
 bool
-SymbolFileDWARF::DIEDeclContextsMatch (DWARFCompileUnit* cu1, const DWARFDebugInfoEntry *die1,
-                                       DWARFCompileUnit* cu2, const DWARFDebugInfoEntry *die2)
+SymbolFileDWARF::DIEDeclContextsMatch (const DWARFDIE &die1,
+                                       const DWARFDIE &die2)
 {
     if (die1 == die2)
         return true;
 
-#if defined (LLDB_CONFIGURATION_DEBUG)
-    // You can't and shouldn't call this function with a compile unit from
-    // two different SymbolFileDWARF instances.
-    assert (DebugInfo()->ContainsCompileUnit (cu1));
-    assert (DebugInfo()->ContainsCompileUnit (cu2));
-#endif
-
     DWARFDIECollection decl_ctx_1;
     DWARFDIECollection decl_ctx_2;
     //The declaration DIE stack is a stack of the declaration context 
@@ -5215,8 +3507,8 @@ SymbolFileDWARF::DIEDeclContextsMatch (DWARFCompileUnit* cu1, const DWARFDebugIn
     // all the way back to the compiler unit.
     
     // First lets grab the decl contexts for both DIEs
-    die1->GetDeclContextDIEs (this, cu1, decl_ctx_1);
-    die2->GetDeclContextDIEs (this, cu2, decl_ctx_2);
+    die1.GetDeclContextDIEs (decl_ctx_1);
+    die2.GetDeclContextDIEs (decl_ctx_2);
     // Make sure the context arrays have the same size, otherwise
     // we are done
     const size_t count1 = decl_ctx_1.Size();
@@ -5226,32 +3518,32 @@ SymbolFileDWARF::DIEDeclContextsMatch (DWARFCompileUnit* cu1, const DWARFDebugIn
     
     // Make sure the DW_TAG values match all the way back up the
     // compile unit. If they don't, then we are done.
-    const DWARFDebugInfoEntry *decl_ctx_die1;
-    const DWARFDebugInfoEntry *decl_ctx_die2;
+    DWARFDIE decl_ctx_die1;
+    DWARFDIE decl_ctx_die2;
     size_t i;
     for (i=0; i<count1; i++)
     {
-        decl_ctx_die1 = decl_ctx_1.GetDIEPtrAtIndex (i);
-        decl_ctx_die2 = decl_ctx_2.GetDIEPtrAtIndex (i);
-        if (decl_ctx_die1->Tag() != decl_ctx_die2->Tag())
+        decl_ctx_die1 = decl_ctx_1.GetDIEAtIndex (i);
+        decl_ctx_die2 = decl_ctx_2.GetDIEAtIndex (i);
+        if (decl_ctx_die1.Tag() != decl_ctx_die2.Tag())
             return false;
     }
 #if defined LLDB_CONFIGURATION_DEBUG
 
     // Make sure the top item in the decl context die array is always 
     // DW_TAG_compile_unit. If it isn't then something went wrong in
-    // the DWARFDebugInfoEntry::GetDeclContextDIEs() function...
-    assert (decl_ctx_1.GetDIEPtrAtIndex (count1 - 1)->Tag() == DW_TAG_compile_unit);
+    // the DWARFDIE::GetDeclContextDIEs() function...
+    assert (decl_ctx_1.GetDIEAtIndex (count1 - 1).Tag() == DW_TAG_compile_unit);
 
 #endif
     // Always skip the compile unit when comparing by only iterating up to
     // "count - 1". Here we compare the names as we go. 
     for (i=0; i<count1 - 1; i++)
     {
-        decl_ctx_die1 = decl_ctx_1.GetDIEPtrAtIndex (i);
-        decl_ctx_die2 = decl_ctx_2.GetDIEPtrAtIndex (i);
-        const char *name1 = decl_ctx_die1->GetName(this, cu1);
-        const char *name2 = decl_ctx_die2->GetName(this, cu2);
+        decl_ctx_die1 = decl_ctx_1.GetDIEAtIndex (i);
+        decl_ctx_die2 = decl_ctx_2.GetDIEAtIndex (i);
+        const char *name1 = decl_ctx_die1.GetName();
+        const char *name2 = decl_ctx_die2.GetName();
         // If the string was from a DW_FORM_strp, then the pointer will often
         // be the same!
         if (name1 == name2)
@@ -5338,22 +3630,20 @@ SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &
             const size_t num_matches = die_offsets.size();
             
             
-            DWARFCompileUnit* type_cu = NULL;
-            const DWARFDebugInfoEntry* type_die = NULL;
             if (num_matches)
             {
                 DWARFDebugInfo* debug_info = DebugInfo();
                 for (size_t i=0; i<num_matches; ++i)
                 {
-                    const dw_offset_t die_offset = die_offsets[i];
-                    type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu);
+                    const DIERef& die_ref = die_offsets[i];
+                    DWARFDIE type_die = debug_info->GetDIE (die_ref);
                     
                     if (type_die)
                     {
                         bool try_resolving_type = false;
                         
                         // Don't try and resolve the DIE we are looking for with the DIE itself!
-                        const dw_tag_t type_tag = type_die->Tag();
+                        const dw_tag_t type_tag = type_die.Tag();
                         // Make sure the tags match
                         if (type_tag == tag)
                         {
@@ -5386,7 +3676,7 @@ SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &
                         if (try_resolving_type)
                         {
                             DWARFDeclContext type_dwarf_decl_ctx;
-                            type_die->GetDWARFDeclContext (this, type_cu, type_dwarf_decl_ctx);
+                            type_die.GetDWARFDeclContext (type_dwarf_decl_ctx);
 
                             if (log)
                             {
@@ -5394,14 +3684,14 @@ SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &
                                                                           "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s') trying die=0x%8.8x (%s)",
                                                                           DW_TAG_value_to_name(dwarf_decl_ctx[0].tag),
                                                                           dwarf_decl_ctx.GetQualifiedName(),
-                                                                          type_die->GetOffset(),
+                                                                          type_die.GetOffset(),
                                                                           type_dwarf_decl_ctx.GetQualifiedName());
                             }
                             
                             // Make sure the decl contexts match all the way up
                             if (dwarf_decl_ctx == type_dwarf_decl_ctx)
                             {
-                                Type *resolved_type = ResolveType (type_cu, type_die, false);
+                                Type *resolved_type = ResolveType (type_die, false);
                                 if (resolved_type && resolved_type != DIE_IS_BEING_PARSED)
                                 {
                                     type_sp = resolved_type->shared_from_this();
@@ -5414,12 +3704,12 @@ SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &
                             if (log)
                             {
                                 std::string qualified_name;
-                                type_die->GetQualifiedName(this, type_cu, qualified_name);
+                                type_die.GetQualifiedName(qualified_name);
                                 GetObjectFile()->GetModule()->LogMessage (log,
                                                                           "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s') ignoring die=0x%8.8x (%s)",
                                                                           DW_TAG_value_to_name(dwarf_decl_ctx[0].tag),
                                                                           dwarf_decl_ctx.GetQualifiedName(),
-                                                                          type_die->GetOffset(),
+                                                                          type_die.GetOffset(),
                                                                           qualified_name.c_str());
                             }
                         }
@@ -5429,7 +3719,7 @@ SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &
                         if (m_using_apple_tables)
                         {
                             GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n",
-                                                                                       die_offset, type_name.GetCString());
+                                                                                       die_ref.die_offset, type_name.GetCString());
                         }
                     }            
                     
@@ -5440,1744 +3730,32 @@ SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &
     return type_sp;
 }
 
-bool
-SymbolFileDWARF::CopyUniqueClassMethodTypes (SymbolFileDWARF *src_symfile,
-                                             Type *class_type,
-                                             DWARFCompileUnit* src_cu,
-                                             const DWARFDebugInfoEntry *src_class_die,
-                                             DWARFCompileUnit* dst_cu,
-                                             const DWARFDebugInfoEntry *dst_class_die,
-                                             DWARFDIECollection &failures)
-{
-    if (!class_type || !src_cu || !src_class_die || !dst_cu || !dst_class_die)
-        return false;
-    if (src_class_die->Tag() != dst_class_die->Tag())
-        return false;
-    
-    // We need to complete the class type so we can get all of the method types
-    // parsed so we can then unique those types to their equivalent counterparts
-    // in "dst_cu" and "dst_class_die"
-    class_type->GetClangFullType();
-
-    const DWARFDebugInfoEntry *src_die;
-    const DWARFDebugInfoEntry *dst_die;
-    UniqueCStringMap<const DWARFDebugInfoEntry *> src_name_to_die;
-    UniqueCStringMap<const DWARFDebugInfoEntry *> dst_name_to_die;
-    UniqueCStringMap<const DWARFDebugInfoEntry *> src_name_to_die_artificial;
-    UniqueCStringMap<const DWARFDebugInfoEntry *> dst_name_to_die_artificial;
-    for (src_die = src_class_die->GetFirstChild(); src_die != NULL; src_die = src_die->GetSibling())
-    {
-        if (src_die->Tag() == DW_TAG_subprogram)
-        {
-            // Make sure this is a declaration and not a concrete instance by looking
-            // for DW_AT_declaration set to 1. Sometimes concrete function instances
-            // are placed inside the class definitions and shouldn't be included in
-            // the list of things are are tracking here.
-            if (src_die->GetAttributeValueAsUnsigned(src_symfile, src_cu, DW_AT_declaration, 0) == 1)
-            {
-                const char *src_name = src_die->GetMangledName (src_symfile, src_cu);
-                if (src_name)
-                {
-                    ConstString src_const_name(src_name);
-                    if (src_die->GetAttributeValueAsUnsigned(src_symfile, src_cu, DW_AT_artificial, 0))
-                        src_name_to_die_artificial.Append(src_const_name.GetCString(), src_die);
-                    else
-                        src_name_to_die.Append(src_const_name.GetCString(), src_die);
-                }
-            }
-        }
-    }
-    for (dst_die = dst_class_die->GetFirstChild(); dst_die != NULL; dst_die = dst_die->GetSibling())
-    {
-        if (dst_die->Tag() == DW_TAG_subprogram)
-        {
-            // Make sure this is a declaration and not a concrete instance by looking
-            // for DW_AT_declaration set to 1. Sometimes concrete function instances
-            // are placed inside the class definitions and shouldn't be included in
-            // the list of things are are tracking here.
-            if (dst_die->GetAttributeValueAsUnsigned(this, dst_cu, DW_AT_declaration, 0) == 1)
-            {
-                const char *dst_name = dst_die->GetMangledName (this, dst_cu);
-                if (dst_name)
-                {
-                    ConstString dst_const_name(dst_name);
-                    if (dst_die->GetAttributeValueAsUnsigned(this, dst_cu, DW_AT_artificial, 0))
-                        dst_name_to_die_artificial.Append(dst_const_name.GetCString(), dst_die);
-                    else
-                        dst_name_to_die.Append(dst_const_name.GetCString(), dst_die);
-                }
-            }
-        }
-    }
-    const uint32_t src_size = src_name_to_die.GetSize ();
-    const uint32_t dst_size = dst_name_to_die.GetSize ();
-    Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO | DWARF_LOG_TYPE_COMPLETION));
-
-    // Is everything kosher so we can go through the members at top speed?
-    bool fast_path = true;
-
-    if (src_size != dst_size)
-    {
-        if (src_size != 0 && dst_size != 0)
-        {
-            if (log)
-                log->Printf("warning: trying to unique class DIE 0x%8.8x to 0x%8.8x, but they didn't have the same size (src=%d, dst=%d)",
-                            src_class_die->GetOffset(),
-                            dst_class_die->GetOffset(),
-                            src_size,
-                            dst_size);
-        }
-
-        fast_path = false;
-    }
-
-    uint32_t idx;
-
-    if (fast_path)
-    {
-        for (idx = 0; idx < src_size; ++idx)
-        {
-            src_die = src_name_to_die.GetValueAtIndexUnchecked (idx);
-            dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx);
-
-            if (src_die->Tag() != dst_die->Tag())
-            {
-                if (log)
-                    log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)",
-                                src_class_die->GetOffset(),
-                                dst_class_die->GetOffset(),
-                                src_die->GetOffset(),
-                                DW_TAG_value_to_name(src_die->Tag()),
-                                dst_die->GetOffset(),
-                                DW_TAG_value_to_name(src_die->Tag()));
-                fast_path = false;
-            }
-
-            const char *src_name = src_die->GetMangledName (src_symfile, src_cu);
-            const char *dst_name = dst_die->GetMangledName (this, dst_cu);
-
-            // Make sure the names match
-            if (src_name == dst_name || (strcmp (src_name, dst_name) == 0))
-                continue;
-
-            if (log)
-                log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, but 0x%8.8x (%s) names didn't match 0x%8.8x (%s)",
-                            src_class_die->GetOffset(),
-                            dst_class_die->GetOffset(),
-                            src_die->GetOffset(),
-                            src_name,
-                            dst_die->GetOffset(),
-                            dst_name);
-
-            fast_path = false;
-        }
-    }
-
-    // Now do the work of linking the DeclContexts and Types.
-    if (fast_path)
-    {
-        // We can do this quickly.  Just run across the tables index-for-index since
-        // we know each node has matching names and tags.
-        for (idx = 0; idx < src_size; ++idx)
-        {
-            src_die = src_name_to_die.GetValueAtIndexUnchecked (idx);
-            dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx);
-
-            clang::DeclContext *src_decl_ctx = src_symfile->m_die_to_decl_ctx[src_die];
-            if (src_decl_ctx)
-            {
-                if (log)
-                    log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
-                                 static_cast<void*>(src_decl_ctx),
-                                 src_die->GetOffset(), dst_die->GetOffset());
-                LinkDeclContextToDIE (src_decl_ctx, dst_die);
-            }
-            else
-            {
-                if (log)
-                    log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found",
-                                 src_die->GetOffset(), dst_die->GetOffset());
-            }
-
-            Type *src_child_type = m_die_to_type[src_die];
-            if (src_child_type)
-            {
-                if (log)
-                    log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
-                                 static_cast<void*>(src_child_type),
-                                 src_child_type->GetID(),
-                                 src_die->GetOffset(), dst_die->GetOffset());
-                m_die_to_type[dst_die] = src_child_type;
-            }
-            else
-            {
-                if (log)
-                    log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
-            }
-        }
-    }
-    else
-    {
-        // We must do this slowly.  For each member of the destination, look
-        // up a member in the source with the same name, check its tag, and
-        // unique them if everything matches up.  Report failures.
-
-        if (!src_name_to_die.IsEmpty() && !dst_name_to_die.IsEmpty())
-        {
-            src_name_to_die.Sort();
-
-            for (idx = 0; idx < dst_size; ++idx)
-            {
-                const char *dst_name = dst_name_to_die.GetCStringAtIndex(idx);
-                dst_die = dst_name_to_die.GetValueAtIndexUnchecked(idx);
-                src_die = src_name_to_die.Find(dst_name, NULL);
-
-                if (src_die && (src_die->Tag() == dst_die->Tag()))
-                {
-                    clang::DeclContext *src_decl_ctx = src_symfile->m_die_to_decl_ctx[src_die];
-                    if (src_decl_ctx)
-                    {
-                        if (log)
-                            log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
-                                         static_cast<void*>(src_decl_ctx),
-                                         src_die->GetOffset(),
-                                         dst_die->GetOffset());
-                        LinkDeclContextToDIE (src_decl_ctx, dst_die);
-                    }
-                    else
-                    {
-                        if (log)
-                            log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
-                    }
-
-                    Type *src_child_type = m_die_to_type[src_die];
-                    if (src_child_type)
-                    {
-                        if (log)
-                            log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
-                                         static_cast<void*>(src_child_type),
-                                         src_child_type->GetID(),
-                                         src_die->GetOffset(),
-                                         dst_die->GetOffset());
-                        m_die_to_type[dst_die] = src_child_type;
-                    }
-                    else
-                    {
-                        if (log)
-                            log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
-                    }
-                }
-                else
-                {
-                    if (log)
-                        log->Printf ("warning: couldn't find a match for 0x%8.8x", dst_die->GetOffset());
-
-                    failures.Append(dst_die);
-                }
-            }
-        }
-    }
-    
-    const uint32_t src_size_artificial = src_name_to_die_artificial.GetSize ();
-    const uint32_t dst_size_artificial = dst_name_to_die_artificial.GetSize ();
-    
-    UniqueCStringMap<const DWARFDebugInfoEntry *> name_to_die_artificial_not_in_src;
-
-    if (src_size_artificial && dst_size_artificial)
-    {
-        dst_name_to_die_artificial.Sort();
-
-        for (idx = 0; idx < src_size_artificial; ++idx)
-        {
-            const char *src_name_artificial = src_name_to_die_artificial.GetCStringAtIndex(idx);
-            src_die = src_name_to_die_artificial.GetValueAtIndexUnchecked (idx);
-            dst_die = dst_name_to_die_artificial.Find(src_name_artificial, NULL);
-
-            if (dst_die)
-            {
-                // Both classes have the artificial types, link them
-                clang::DeclContext *src_decl_ctx = m_die_to_decl_ctx[src_die];
-                if (src_decl_ctx)
-                {
-                    if (log)
-                        log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
-                                     static_cast<void*>(src_decl_ctx),
-                                     src_die->GetOffset(), dst_die->GetOffset());
-                    LinkDeclContextToDIE (src_decl_ctx, dst_die);
-                }
-                else
-                {
-                    if (log)
-                        log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
-                }
-
-                Type *src_child_type = m_die_to_type[src_die];
-                if (src_child_type)
-                {
-                    if (log)
-                        log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
-                                     static_cast<void*>(src_child_type),
-                                     src_child_type->GetID(),
-                                     src_die->GetOffset(), dst_die->GetOffset());
-                    m_die_to_type[dst_die] = src_child_type;
-                }
-                else
-                {
-                    if (log)
-                        log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
-                }
-            }
-        }
-    }
-
-    if (dst_size_artificial)
-    {
-        for (idx = 0; idx < dst_size_artificial; ++idx)
-        {
-            const char *dst_name_artificial = dst_name_to_die_artificial.GetCStringAtIndex(idx);
-            dst_die = dst_name_to_die_artificial.GetValueAtIndexUnchecked (idx);
-            if (log)
-                log->Printf ("warning: need to create artificial method for 0x%8.8x for method '%s'", dst_die->GetOffset(), dst_name_artificial);
-            
-            failures.Append(dst_die);
-        }
-    }
-
-    return (failures.Size() != 0);
-}
-
 TypeSP
-SymbolFileDWARF::ParseType (const SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die, bool *type_is_new_ptr)
+SymbolFileDWARF::ParseType (const SymbolContext& sc, const DWARFDIE &die, bool *type_is_new_ptr)
 {
     TypeSP type_sp;
 
-    if (type_is_new_ptr)
-        *type_is_new_ptr = false;
-
-#if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE)
-    static DIEStack g_die_stack;
-    DIEStack::ScopedPopper scoped_die_logger(g_die_stack);
-#endif
-
-    AccessType accessibility = eAccessNone;
-    if (die != NULL)
+    if (die)
     {
-        Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
-        if (log)
-        {
-            const DWARFDebugInfoEntry *context_die;
-            clang::DeclContext *context = GetClangDeclContextContainingDIE (dwarf_cu, die, &context_die);
-
-            GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x, decl_ctx = %p (die 0x%8.8x)) %s name = '%s')",
-                                                      die->GetOffset(),
-                                                      static_cast<void*>(context),
-                                                      context_die->GetOffset(),
-                                                      DW_TAG_value_to_name(die->Tag()),
-                                                      die->GetName(this, dwarf_cu));
-
-#if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE)
-            scoped_die_logger.Push (dwarf_cu, die);
-            g_die_stack.LogDIEs(log, this);
-#endif
-        }
-//
-//        Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
-//        if (log && dwarf_cu)
-//        {
-//            StreamString s;
-//            die->DumpLocation (this, dwarf_cu, s);
-//            GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDwarf::%s %s", __FUNCTION__, s.GetData());
-//            
-//        }
-
-        Type *type_ptr = m_die_to_type.lookup (die);
-        TypeList* type_list = GetTypeList();
-        if (type_ptr == NULL)
-        {
-            ClangASTContext &ast = GetClangASTContext();
-            if (type_is_new_ptr)
-                *type_is_new_ptr = true;
-
-            const dw_tag_t tag = die->Tag();
-
-            bool is_forward_declaration = false;
-            DWARFDebugInfoEntry::Attributes attributes;
-            const char *type_name_cstr = NULL;
-            ConstString type_name_const_str;
-            Type::ResolveState resolve_state = Type::eResolveStateUnresolved;
-            uint64_t byte_size = 0;
-            Declaration decl;
-
-            Type::EncodingDataType encoding_data_type = Type::eEncodingIsUID;
-            ClangASTType clang_type;
-            DWARFFormValue form_value;
-            
-            dw_attr_t attr;
-
-            switch (tag)
-            {
-            case DW_TAG_base_type:
-            case DW_TAG_pointer_type:
-            case DW_TAG_reference_type:
-            case DW_TAG_rvalue_reference_type:
-            case DW_TAG_typedef:
-            case DW_TAG_const_type:
-            case DW_TAG_restrict_type:
-            case DW_TAG_volatile_type:
-            case DW_TAG_unspecified_type:
-                {
-                    // Set a bit that lets us know that we are currently parsing this
-                    m_die_to_type[die] = DIE_IS_BEING_PARSED;
-
-                    const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
-                    uint32_t encoding = 0;
-                    lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
-
-                    if (num_attributes > 0)
-                    {
-                        uint32_t i;
-                        for (i=0; i<num_attributes; ++i)
-                        {
-                            attr = attributes.AttributeAtIndex(i);
-                            if (attributes.ExtractFormValueAtIndex(this, i, form_value))
-                            {
-                                switch (attr)
-                                {
-                                case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
-                                case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
-                                case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
-                                case DW_AT_name:
-
-                                    type_name_cstr = form_value.AsCString(&get_debug_str_data());
-                                    // Work around a bug in llvm-gcc where they give a name to a reference type which doesn't
-                                    // include the "&"...
-                                    if (tag == DW_TAG_reference_type)
-                                    {
-                                        if (strchr (type_name_cstr, '&') == NULL)
-                                            type_name_cstr = NULL;
-                                    }
-                                    if (type_name_cstr)
-                                        type_name_const_str.SetCString(type_name_cstr);
-                                    break;
-                                case DW_AT_byte_size:   byte_size = form_value.Unsigned(); break;
-                                case DW_AT_encoding:    encoding = form_value.Unsigned(); break;
-                                case DW_AT_type:        encoding_uid = form_value.Reference(); break;
-                                default:
-                                case DW_AT_sibling:
-                                    break;
-                                }
-                            }
-                        }
-                    }
-
-                    DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\") type => 0x%8.8lx\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr, encoding_uid);
-
-                    switch (tag)
-                    {
-                    default:
-                        break;
-
-                    case DW_TAG_unspecified_type:
-                        if (strcmp(type_name_cstr, "nullptr_t") == 0 ||
-                            strcmp(type_name_cstr, "decltype(nullptr)") == 0 )
-                        {
-                            resolve_state = Type::eResolveStateFull;
-                            clang_type = ast.GetBasicType(eBasicTypeNullPtr);
-                            break;
-                        }
-                        // Fall through to base type below in case we can handle the type there...
-
-                    case DW_TAG_base_type:
-                        resolve_state = Type::eResolveStateFull;
-                        clang_type = ast.GetBuiltinTypeForDWARFEncodingAndBitSize (type_name_cstr, 
-                                                                                   encoding, 
-                                                                                   byte_size * 8);
-                        break;
-
-                    case DW_TAG_pointer_type:           encoding_data_type = Type::eEncodingIsPointerUID;           break;
-                    case DW_TAG_reference_type:         encoding_data_type = Type::eEncodingIsLValueReferenceUID;   break;
-                    case DW_TAG_rvalue_reference_type:  encoding_data_type = Type::eEncodingIsRValueReferenceUID;   break;
-                    case DW_TAG_typedef:                encoding_data_type = Type::eEncodingIsTypedefUID;           break;
-                    case DW_TAG_const_type:             encoding_data_type = Type::eEncodingIsConstUID;             break;
-                    case DW_TAG_restrict_type:          encoding_data_type = Type::eEncodingIsRestrictUID;          break;
-                    case DW_TAG_volatile_type:          encoding_data_type = Type::eEncodingIsVolatileUID;          break;
-                    }
-
-                    if (!clang_type && (encoding_data_type == Type::eEncodingIsPointerUID || encoding_data_type == Type::eEncodingIsTypedefUID) && sc.comp_unit != NULL)
-                    {
-                        bool translation_unit_is_objc = (sc.comp_unit->GetLanguage() == eLanguageTypeObjC || sc.comp_unit->GetLanguage() == eLanguageTypeObjC_plus_plus);
-
-                        if (translation_unit_is_objc)
-                        {
-                            if (type_name_cstr != NULL)
-                            {
-                                static ConstString g_objc_type_name_id("id");
-                                static ConstString g_objc_type_name_Class("Class");
-                                static ConstString g_objc_type_name_selector("SEL");
-
-                                if (type_name_const_str == g_objc_type_name_id)
-                                {
-                                    if (log)
-                                        GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'id' built-in type.",
-                                                                                  die->GetOffset(), 
-                                                                                  DW_TAG_value_to_name(die->Tag()), 
-                                                                                  die->GetName(this, dwarf_cu));
-                                    clang_type = ast.GetBasicType(eBasicTypeObjCID);
-                                    encoding_data_type = Type::eEncodingIsUID;
-                                    encoding_uid = LLDB_INVALID_UID;
-                                    resolve_state = Type::eResolveStateFull;
-
-                                }
-                                else if (type_name_const_str == g_objc_type_name_Class)
-                                {
-                                    if (log)
-                                        GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'Class' built-in type.",
-                                                                                  die->GetOffset(), 
-                                                                                  DW_TAG_value_to_name(die->Tag()), 
-                                                                                  die->GetName(this, dwarf_cu));
-                                    clang_type = ast.GetBasicType(eBasicTypeObjCClass);
-                                    encoding_data_type = Type::eEncodingIsUID;
-                                    encoding_uid = LLDB_INVALID_UID;
-                                    resolve_state = Type::eResolveStateFull;
-                                }
-                                else if (type_name_const_str == g_objc_type_name_selector)
-                                {
-                                    if (log)
-                                        GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'selector' built-in type.",
-                                                                                  die->GetOffset(), 
-                                                                                  DW_TAG_value_to_name(die->Tag()), 
-                                                                                  die->GetName(this, dwarf_cu));
-                                    clang_type = ast.GetBasicType(eBasicTypeObjCSel);
-                                    encoding_data_type = Type::eEncodingIsUID;
-                                    encoding_uid = LLDB_INVALID_UID;
-                                    resolve_state = Type::eResolveStateFull;
-                                }
-                            }
-                            else if (encoding_data_type == Type::eEncodingIsPointerUID && encoding_uid != LLDB_INVALID_UID)
-                            {
-                                // Clang sometimes erroneously emits id as objc_object*.  In that case we fix up the type to "id".
-
-                                DWARFDebugInfoEntry* encoding_die = dwarf_cu->GetDIEPtr(encoding_uid);
-
-                                if (encoding_die && encoding_die->Tag() == DW_TAG_structure_type)
-                                {
-                                    if (const char *struct_name = encoding_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_name, NULL))
-                                    {
-                                        if (!strcmp(struct_name, "objc_object"))
-                                        {
-                                            if (log)
-                                                GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is 'objc_object*', which we overrode to 'id'.",
-                                                                                          die->GetOffset(),
-                                                                                          DW_TAG_value_to_name(die->Tag()),
-                                                                                          die->GetName(this, dwarf_cu));
-                                            clang_type = ast.GetBasicType(eBasicTypeObjCID);
-                                            encoding_data_type = Type::eEncodingIsUID;
-                                            encoding_uid = LLDB_INVALID_UID;
-                                            resolve_state = Type::eResolveStateFull;
-                                        }
-                                    }
-                                }
-                            }
-                        }
-                    }
-
-                    type_sp.reset( new Type (MakeUserID(die->GetOffset()),
-                                             this, 
-                                             type_name_const_str, 
-                                             byte_size, 
-                                             NULL, 
-                                             encoding_uid, 
-                                             encoding_data_type, 
-                                             &decl, 
-                                             clang_type, 
-                                             resolve_state));
-
-                    m_die_to_type[die] = type_sp.get();
-
-//                  Type* encoding_type = GetUniquedTypeForDIEOffset(encoding_uid, type_sp, NULL, 0, 0, false);
-//                  if (encoding_type != NULL)
-//                  {
-//                      if (encoding_type != DIE_IS_BEING_PARSED)
-//                          type_sp->SetEncodingType(encoding_type);
-//                      else
-//                          m_indirect_fixups.push_back(type_sp.get());
-//                  }
-                }
-                break;
-
-            case DW_TAG_structure_type:
-            case DW_TAG_union_type:
-            case DW_TAG_class_type:
-                {
-                    // Set a bit that lets us know that we are currently parsing this
-                    m_die_to_type[die] = DIE_IS_BEING_PARSED;
-                    bool byte_size_valid = false;
-
-                    LanguageType class_language = eLanguageTypeUnknown;
-                    bool is_complete_objc_class = false;
-                    //bool struct_is_class = false;
-                    const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
-                    if (num_attributes > 0)
-                    {
-                        uint32_t i;
-                        for (i=0; i<num_attributes; ++i)
-                        {
-                            attr = attributes.AttributeAtIndex(i);
-                            if (attributes.ExtractFormValueAtIndex(this, i, form_value))
-                            {
-                                switch (attr)
-                                {
-                                case DW_AT_decl_file:
-                                    if (dwarf_cu->DW_AT_decl_file_attributes_are_invalid())
-                                    {
-                                        // llvm-gcc outputs invalid DW_AT_decl_file attributes that always
-                                        // point to the compile unit file, so we clear this invalid value
-                                        // so that we can still unique types efficiently.
-                                        decl.SetFile(FileSpec ("<invalid>", false));
-                                    }
-                                    else
-                                        decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); 
-                                    break;
-
-                                case DW_AT_decl_line:
-                                    decl.SetLine(form_value.Unsigned()); 
-                                    break;
-
-                                case DW_AT_decl_column: 
-                                    decl.SetColumn(form_value.Unsigned()); 
-                                    break;
-
-                                case DW_AT_name:
-                                    type_name_cstr = form_value.AsCString(&get_debug_str_data());
-                                    type_name_const_str.SetCString(type_name_cstr);
-                                    break;
-
-                                case DW_AT_byte_size:   
-                                    byte_size = form_value.Unsigned(); 
-                                    byte_size_valid = true;
-                                    break;
-
-                                case DW_AT_accessibility: 
-                                    accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); 
-                                    break;
-
-                                case DW_AT_declaration: 
-                                    is_forward_declaration = form_value.Boolean();
-                                    break;
-
-                                case DW_AT_APPLE_runtime_class: 
-                                    class_language = (LanguageType)form_value.Signed(); 
-                                    break;
-
-                                case DW_AT_APPLE_objc_complete_type:
-                                    is_complete_objc_class = form_value.Signed(); 
-                                    break;
-
-                                case DW_AT_allocated:
-                                case DW_AT_associated:
-                                case DW_AT_data_location:
-                                case DW_AT_description:
-                                case DW_AT_start_scope:
-                                case DW_AT_visibility:
-                                default:
-                                case DW_AT_sibling:
-                                    break;
-                                }
-                            }
-                        }
-                    }
-                    
-                    // UniqueDWARFASTType is large, so don't create a local variables on the
-                    // stack, put it on the heap. This function is often called recursively
-                    // and clang isn't good and sharing the stack space for variables in different blocks.
-                    std::unique_ptr<UniqueDWARFASTType> unique_ast_entry_ap(new UniqueDWARFASTType());
-
-                    // Only try and unique the type if it has a name. 
-                    if (type_name_const_str &&
-                        GetUniqueDWARFASTTypeMap().Find (type_name_const_str,
-                                                         this,
-                                                         dwarf_cu,
-                                                         die,
-                                                         decl,
-                                                         byte_size_valid ? byte_size : -1,
-                                                         *unique_ast_entry_ap))
-                    {
-                        // We have already parsed this type or from another 
-                        // compile unit. GCC loves to use the "one definition
-                        // rule" which can result in multiple definitions
-                        // of the same class over and over in each compile
-                        // unit.
-                        type_sp = unique_ast_entry_ap->m_type_sp;
-                        if (type_sp)
-                        {
-                            m_die_to_type[die] = type_sp.get();
-                            return type_sp;
-                        }
-                    }
-
-                    DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
-
-                    int tag_decl_kind = -1;
-                    AccessType default_accessibility = eAccessNone;
-                    if (tag == DW_TAG_structure_type)
-                    {
-                        tag_decl_kind = clang::TTK_Struct;
-                        default_accessibility = eAccessPublic;
-                    }
-                    else if (tag == DW_TAG_union_type)
-                    {
-                        tag_decl_kind = clang::TTK_Union;
-                        default_accessibility = eAccessPublic;
-                    }
-                    else if (tag == DW_TAG_class_type)
-                    {
-                        tag_decl_kind = clang::TTK_Class;
-                        default_accessibility = eAccessPrivate;
-                    }
-
-                    if (byte_size_valid && byte_size == 0 && type_name_cstr &&
-                        die->HasChildren() == false && 
-                        sc.comp_unit->GetLanguage() == eLanguageTypeObjC)
-                    {
-                        // Work around an issue with clang at the moment where
-                        // forward declarations for objective C classes are emitted
-                        // as:
-                        //  DW_TAG_structure_type [2]  
-                        //  DW_AT_name( "ForwardObjcClass" )
-                        //  DW_AT_byte_size( 0x00 )
-                        //  DW_AT_decl_file( "..." )
-                        //  DW_AT_decl_line( 1 )
-                        //
-                        // Note that there is no DW_AT_declaration and there are
-                        // no children, and the byte size is zero.
-                        is_forward_declaration = true;
-                    }
-
-                    if (class_language == eLanguageTypeObjC ||
-                        class_language == eLanguageTypeObjC_plus_plus)
-                    {
-                        if (!is_complete_objc_class && Supports_DW_AT_APPLE_objc_complete_type(dwarf_cu))
-                        {
-                            // We have a valid eSymbolTypeObjCClass class symbol whose
-                            // name matches the current objective C class that we
-                            // are trying to find and this DIE isn't the complete
-                            // definition (we checked is_complete_objc_class above and
-                            // know it is false), so the real definition is in here somewhere
-                            type_sp = FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true);
-
-                            if (!type_sp && GetDebugMapSymfile ())
-                            {
-                                // We weren't able to find a full declaration in
-                                // this DWARF, see if we have a declaration anywhere    
-                                // else...
-                                type_sp = m_debug_map_symfile->FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true);
-                            }
-
-                            if (type_sp)
-                            {
-                                if (log)
-                                {
-                                    GetObjectFile()->GetModule()->LogMessage (log,
-                                                                              "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is an incomplete objc type, complete type is 0x%8.8" PRIx64,
-                                                                              static_cast<void*>(this),
-                                                                              die->GetOffset(), 
-                                                                              DW_TAG_value_to_name(tag),
-                                                                              type_name_cstr,
-                                                                              type_sp->GetID());
-                                }
-
-                                // We found a real definition for this type elsewhere
-                                // so lets use it and cache the fact that we found
-                                // a complete type for this die
-                                m_die_to_type[die] = type_sp.get();
-                                return type_sp;
-                            }
-                        }
-                    }
-
-
-                    if (is_forward_declaration)
-                    {
-                        // We have a forward declaration to a type and we need
-                        // to try and find a full declaration. We look in the
-                        // current type index just in case we have a forward
-                        // declaration followed by an actual declarations in the
-                        // DWARF. If this fails, we need to look elsewhere...
-                        if (log)
-                        {
-                            GetObjectFile()->GetModule()->LogMessage (log,
-                                                                      "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, trying to find complete type", 
-                                                                      static_cast<void*>(this),
-                                                                      die->GetOffset(), 
-                                                                      DW_TAG_value_to_name(tag),
-                                                                      type_name_cstr);
-                        }
-
-                        DWARFDeclContext die_decl_ctx;
-                        die->GetDWARFDeclContext(this, dwarf_cu, die_decl_ctx);
-
-                        //type_sp = FindDefinitionTypeForDIE (dwarf_cu, die, type_name_const_str);
-                        type_sp = FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
-
-                        if (!type_sp && GetDebugMapSymfile ())
-                        {
-                            // We weren't able to find a full declaration in
-                            // this DWARF, see if we have a declaration anywhere    
-                            // else...
-                            type_sp = m_debug_map_symfile->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
-                        }
-
-                        if (type_sp)
-                        {
-                            if (log)
-                            {
-                                GetObjectFile()->GetModule()->LogMessage (log,
-                                                                          "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, complete type is 0x%8.8" PRIx64,
-                                                                          static_cast<void*>(this),
-                                                                          die->GetOffset(), 
-                                                                          DW_TAG_value_to_name(tag),
-                                                                          type_name_cstr,
-                                                                          type_sp->GetID());
-                            }
-
-                            // We found a real definition for this type elsewhere
-                            // so lets use it and cache the fact that we found
-                            // a complete type for this die
-                            m_die_to_type[die] = type_sp.get();
-                            return type_sp;
-                        }
-                    }
-                    assert (tag_decl_kind != -1);
-                    bool clang_type_was_created = false;
-                    clang_type.SetClangType(ast.getASTContext(), m_forward_decl_die_to_clang_type.lookup (die));
-                    if (!clang_type)
-                    {
-                        const DWARFDebugInfoEntry *decl_ctx_die;
-
-                        clang::DeclContext *decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, &decl_ctx_die);
-                        if (accessibility == eAccessNone && decl_ctx)
-                        {
-                            // Check the decl context that contains this class/struct/union.
-                            // If it is a class we must give it an accessibility.
-                            const clang::Decl::Kind containing_decl_kind = decl_ctx->getDeclKind();
-                            if (DeclKindIsCXXClass (containing_decl_kind))
-                                accessibility = default_accessibility;
-                        }
-
-                        ClangASTMetadata metadata;
-                        metadata.SetUserID(MakeUserID(die->GetOffset()));
-                        metadata.SetIsDynamicCXXType(ClassOrStructIsVirtual (dwarf_cu, die));
-
-                        if (type_name_cstr && strchr (type_name_cstr, '<'))
-                        {
-                            ClangASTContext::TemplateParameterInfos template_param_infos;
-                            if (ParseTemplateParameterInfos (dwarf_cu, die, template_param_infos))
-                            {
-                                clang::ClassTemplateDecl *class_template_decl = ParseClassTemplateDecl (decl_ctx,
-                                                                                                        accessibility,
-                                                                                                        type_name_cstr,
-                                                                                                        tag_decl_kind,
-                                                                                                        template_param_infos);
-
-                                clang::ClassTemplateSpecializationDecl *class_specialization_decl = ast.CreateClassTemplateSpecializationDecl (decl_ctx,
-                                                                                                                                               class_template_decl,
-                                                                                                                                               tag_decl_kind,
-                                                                                                                                               template_param_infos);
-                                clang_type = ast.CreateClassTemplateSpecializationType (class_specialization_decl);
-                                clang_type_was_created = true;
-
-                                GetClangASTContext().SetMetadata (class_template_decl, metadata);
-                                GetClangASTContext().SetMetadata (class_specialization_decl, metadata);
-                            }
-                        }
-
-                        if (!clang_type_was_created)
-                        {
-                            clang_type_was_created = true;
-                            clang_type = ast.CreateRecordType (decl_ctx, 
-                                                               accessibility, 
-                                                               type_name_cstr, 
-                                                               tag_decl_kind, 
-                                                               class_language,
-                                                               &metadata);
-                        }
-                    }
-
-                    // Store a forward declaration to this class type in case any 
-                    // parameters in any class methods need it for the clang 
-                    // types for function prototypes.
-                    LinkDeclContextToDIE(clang_type.GetDeclContextForType(), die);
-                    type_sp.reset (new Type (MakeUserID(die->GetOffset()), 
-                                             this, 
-                                             type_name_const_str, 
-                                             byte_size, 
-                                             NULL, 
-                                             LLDB_INVALID_UID, 
-                                             Type::eEncodingIsUID, 
-                                             &decl, 
-                                             clang_type, 
-                                             Type::eResolveStateForward));
-
-                    type_sp->SetIsCompleteObjCClass(is_complete_objc_class);
-
-
-                    // Add our type to the unique type map so we don't
-                    // end up creating many copies of the same type over
-                    // and over in the ASTContext for our module
-                    unique_ast_entry_ap->m_type_sp = type_sp;
-                    unique_ast_entry_ap->m_symfile = this;
-                    unique_ast_entry_ap->m_cu = dwarf_cu;
-                    unique_ast_entry_ap->m_die = die;
-                    unique_ast_entry_ap->m_declaration = decl;
-                    unique_ast_entry_ap->m_byte_size = byte_size;
-                    GetUniqueDWARFASTTypeMap().Insert (type_name_const_str, 
-                                                       *unique_ast_entry_ap);
-
-                    if (is_forward_declaration && die->HasChildren())
-                    {
-                        // Check to see if the DIE actually has a definition, some version of GCC will
-                        // emit DIEs with DW_AT_declaration set to true, but yet still have subprogram,
-                        // members, or inheritance, so we can't trust it
-                        const DWARFDebugInfoEntry *child_die = die->GetFirstChild();
-                        while (child_die)
-                        {
-                            switch (child_die->Tag())
-                            {
-                                case DW_TAG_inheritance:
-                                case DW_TAG_subprogram:
-                                case DW_TAG_member:
-                                case DW_TAG_APPLE_property:
-                                case DW_TAG_class_type:
-                                case DW_TAG_structure_type:
-                                case DW_TAG_enumeration_type:
-                                case DW_TAG_typedef:
-                                case DW_TAG_union_type:
-                                    child_die = NULL;
-                                    is_forward_declaration = false;
-                                    break;
-                                default:
-                                    child_die = child_die->GetSibling();
-                                    break;
-                            }
-                        }
-                    }
-
-                    if (!is_forward_declaration)
-                    {
-                        // Always start the definition for a class type so that
-                        // if the class has child classes or types that require
-                        // the class to be created for use as their decl contexts
-                        // the class will be ready to accept these child definitions.
-                        if (die->HasChildren() == false)
-                        {
-                            // No children for this struct/union/class, lets finish it
-                            clang_type.StartTagDeclarationDefinition ();
-                            clang_type.CompleteTagDeclarationDefinition ();
-
-                            if (tag == DW_TAG_structure_type) // this only applies in C
-                            {
-                                clang::RecordDecl *record_decl = clang_type.GetAsRecordDecl();
-
-                                if (record_decl)
-                                    m_record_decl_to_layout_map.insert(std::make_pair(record_decl, LayoutInfo()));
-                            }
-                        }
-                        else if (clang_type_was_created)
-                        {
-                            // Start the definition if the class is not objective C since
-                            // the underlying decls respond to isCompleteDefinition(). Objective
-                            // C decls don't respond to isCompleteDefinition() so we can't
-                            // start the declaration definition right away. For C++ class/union/structs
-                            // we want to start the definition in case the class is needed as the
-                            // declaration context for a contained class or type without the need
-                            // to complete that type..
-
-                            if (class_language != eLanguageTypeObjC &&
-                                class_language != eLanguageTypeObjC_plus_plus)
-                                clang_type.StartTagDeclarationDefinition ();
-
-                            // Leave this as a forward declaration until we need
-                            // to know the details of the type. lldb_private::Type
-                            // will automatically call the SymbolFile virtual function
-                            // "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition(Type *)"
-                            // When the definition needs to be defined.
-                            m_forward_decl_die_to_clang_type[die] = clang_type.GetOpaqueQualType();
-                            m_forward_decl_clang_type_to_die[clang_type.RemoveFastQualifiers().GetOpaqueQualType()] = die;
-                            clang_type.SetHasExternalStorage (true);
-                        }
-                    }
-
-                }
-                break;
-
-            case DW_TAG_enumeration_type:
-                {
-                    // Set a bit that lets us know that we are currently parsing this
-                    m_die_to_type[die] = DIE_IS_BEING_PARSED;
-
-                    lldb::user_id_t encoding_uid = DW_INVALID_OFFSET;
-
-                    const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
-                    if (num_attributes > 0)
-                    {
-                        uint32_t i;
-
-                        for (i=0; i<num_attributes; ++i)
-                        {
-                            attr = attributes.AttributeAtIndex(i);
-                            if (attributes.ExtractFormValueAtIndex(this, i, form_value))
-                            {
-                                switch (attr)
-                                {
-                                case DW_AT_decl_file:       decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
-                                case DW_AT_decl_line:       decl.SetLine(form_value.Unsigned()); break;
-                                case DW_AT_decl_column:     decl.SetColumn(form_value.Unsigned()); break;
-                                case DW_AT_name:
-                                    type_name_cstr = form_value.AsCString(&get_debug_str_data());
-                                    type_name_const_str.SetCString(type_name_cstr);
-                                    break;
-                                case DW_AT_type:            encoding_uid = form_value.Reference(); break;
-                                case DW_AT_byte_size:       byte_size = form_value.Unsigned(); break;
-                                case DW_AT_accessibility:   break; //accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
-                                case DW_AT_declaration:     break; //is_forward_declaration = form_value.Boolean(); break;
-                                case DW_AT_allocated:
-                                case DW_AT_associated:
-                                case DW_AT_bit_stride:
-                                case DW_AT_byte_stride:
-                                case DW_AT_data_location:
-                                case DW_AT_description:
-                                case DW_AT_start_scope:
-                                case DW_AT_visibility:
-                                case DW_AT_specification:
-                                case DW_AT_abstract_origin:
-                                case DW_AT_sibling:
-                                    break;
-                                }
-                            }
-                        }
-
-                        DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
-
-                        ClangASTType enumerator_clang_type;
-                        clang_type.SetClangType (ast.getASTContext(), m_forward_decl_die_to_clang_type.lookup (die));
-                        if (!clang_type)
-                        {
-                            if (encoding_uid != DW_INVALID_OFFSET)
-                            {
-                                Type *enumerator_type = ResolveTypeUID(encoding_uid);
-                                if (enumerator_type)
-                                    enumerator_clang_type = enumerator_type->GetClangFullType();
-                            }
-
-                            if (!enumerator_clang_type)
-                                enumerator_clang_type = ast.GetBuiltinTypeForDWARFEncodingAndBitSize (NULL,
-                                                                                                      DW_ATE_signed,
-                                                                                                      byte_size * 8);
-
-                            clang_type = ast.CreateEnumerationType (type_name_cstr, 
-                                                                    GetClangDeclContextContainingDIE (dwarf_cu, die, NULL), 
-                                                                    decl,
-                                                                    enumerator_clang_type);
-                        }
-                        else
-                        {
-                            enumerator_clang_type = clang_type.GetEnumerationIntegerType ();
-                        }
-
-                        LinkDeclContextToDIE(clang_type.GetDeclContextForType(), die);
-
-                        type_sp.reset( new Type (MakeUserID(die->GetOffset()), 
-                                                 this, 
-                                                 type_name_const_str, 
-                                                 byte_size, 
-                                                 NULL, 
-                                                 encoding_uid, 
-                                                 Type::eEncodingIsUID,
-                                                 &decl, 
-                                                 clang_type, 
-                                                 Type::eResolveStateForward));
-
-                        clang_type.StartTagDeclarationDefinition ();
-                        if (die->HasChildren())
-                        {
-                            SymbolContext cu_sc(GetCompUnitForDWARFCompUnit(dwarf_cu));
-                            bool is_signed = false;
-                            enumerator_clang_type.IsIntegerType(is_signed);
-                            ParseChildEnumerators(cu_sc, clang_type, is_signed, type_sp->GetByteSize(), dwarf_cu, die);
-                        }
-                        clang_type.CompleteTagDeclarationDefinition ();
-                    }
-                }
-                break;
-
-            case DW_TAG_inlined_subroutine:
-            case DW_TAG_subprogram:
-            case DW_TAG_subroutine_type:
-                {
-                    // Set a bit that lets us know that we are currently parsing this
-                    m_die_to_type[die] = DIE_IS_BEING_PARSED;
-
-                    //const char *mangled = NULL;
-                    dw_offset_t type_die_offset = DW_INVALID_OFFSET;
-                    bool is_variadic = false;
-                    bool is_inline = false;
-                    bool is_static = false;
-                    bool is_virtual = false;
-                    bool is_explicit = false;
-                    bool is_artificial = false;
-                    dw_offset_t specification_die_offset = DW_INVALID_OFFSET;
-                    dw_offset_t abstract_origin_die_offset = DW_INVALID_OFFSET;
-                    dw_offset_t object_pointer_die_offset = DW_INVALID_OFFSET;
-
-                    unsigned type_quals = 0;
-                    clang::StorageClass storage = clang::SC_None;//, Extern, Static, PrivateExtern
-
-
-                    const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
-                    if (num_attributes > 0)
-                    {
-                        uint32_t i;
-                        for (i=0; i<num_attributes; ++i)
-                        {
-                            attr = attributes.AttributeAtIndex(i);
-                            if (attributes.ExtractFormValueAtIndex(this, i, form_value))
-                            {
-                                switch (attr)
-                                {
-                                case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
-                                case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
-                                case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
-                                case DW_AT_name:
-                                    type_name_cstr = form_value.AsCString(&get_debug_str_data());
-                                    type_name_const_str.SetCString(type_name_cstr);
-                                    break;
-
-                                case DW_AT_linkage_name:
-                                case DW_AT_MIPS_linkage_name:   break; // mangled = form_value.AsCString(&get_debug_str_data()); break;
-                                case DW_AT_type:                type_die_offset = form_value.Reference(); break;
-                                case DW_AT_accessibility:       accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
-                                case DW_AT_declaration:         break; // is_forward_declaration = form_value.Boolean(); break;
-                                case DW_AT_inline:              is_inline = form_value.Boolean(); break;
-                                case DW_AT_virtuality:          is_virtual = form_value.Boolean();  break;
-                                case DW_AT_explicit:            is_explicit = form_value.Boolean();  break;
-                                case DW_AT_artificial:          is_artificial = form_value.Boolean();  break;
-
-
-                                case DW_AT_external:
-                                    if (form_value.Unsigned())
-                                    {
-                                        if (storage == clang::SC_None)
-                                            storage = clang::SC_Extern;
-                                        else
-                                            storage = clang::SC_PrivateExtern;
-                                    }
-                                    break;
-
-                                case DW_AT_specification:
-                                    specification_die_offset = form_value.Reference();
-                                    break;
-
-                                case DW_AT_abstract_origin:
-                                    abstract_origin_die_offset = form_value.Reference();
-                                    break;
-
-                                case DW_AT_object_pointer:
-                                    object_pointer_die_offset = form_value.Reference();
-                                    break;
-
-                                case DW_AT_allocated:
-                                case DW_AT_associated:
-                                case DW_AT_address_class:
-                                case DW_AT_calling_convention:
-                                case DW_AT_data_location:
-                                case DW_AT_elemental:
-                                case DW_AT_entry_pc:
-                                case DW_AT_frame_base:
-                                case DW_AT_high_pc:
-                                case DW_AT_low_pc:
-                                case DW_AT_prototyped:
-                                case DW_AT_pure:
-                                case DW_AT_ranges:
-                                case DW_AT_recursive:
-                                case DW_AT_return_addr:
-                                case DW_AT_segment:
-                                case DW_AT_start_scope:
-                                case DW_AT_static_link:
-                                case DW_AT_trampoline:
-                                case DW_AT_visibility:
-                                case DW_AT_vtable_elem_location:
-                                case DW_AT_description:
-                                case DW_AT_sibling:
-                                    break;
-                                }
-                            }
-                        }
-                    }
-
-                    std::string object_pointer_name;
-                    if (object_pointer_die_offset != DW_INVALID_OFFSET)
-                    {
-                        // Get the name from the object pointer die
-                        StreamString s;
-                        if (DWARFDebugInfoEntry::GetName (this, dwarf_cu, object_pointer_die_offset, s))
-                        {
-                            object_pointer_name.assign(s.GetData());
-                        }
-                    }
-
-                    DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
-
-                    ClangASTType return_clang_type;
-                    Type *func_type = NULL;
-
-                    if (type_die_offset != DW_INVALID_OFFSET)
-                        func_type = ResolveTypeUID(type_die_offset);
-
-                    if (func_type)
-                        return_clang_type = func_type->GetClangForwardType();
-                    else
-                        return_clang_type = ast.GetBasicType(eBasicTypeVoid);
-
-
-                    std::vector<ClangASTType> function_param_types;
-                    std::vector<clang::ParmVarDecl*> function_param_decls;
-
-                    // Parse the function children for the parameters
-
-                    const DWARFDebugInfoEntry *decl_ctx_die = NULL;
-                    clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, &decl_ctx_die);
-                    const clang::Decl::Kind containing_decl_kind = containing_decl_ctx->getDeclKind();
-
-                    const bool is_cxx_method = DeclKindIsCXXClass (containing_decl_kind);
-                    // Start off static. This will be set to false in ParseChildParameters(...)
-                    // if we find a "this" parameters as the first parameter
-                    if (is_cxx_method)
-                        is_static = true;
-                    
-                    if (die->HasChildren())
-                    {
-                        bool skip_artificial = true;
-                        ParseChildParameters (sc,
-                                              containing_decl_ctx,
-                                              dwarf_cu,
-                                              die,
-                                              skip_artificial,
-                                              is_static,
-                                              is_variadic,
-                                              function_param_types,
-                                              function_param_decls,
-                                              type_quals);
-                    }
-
-                    // clang_type will get the function prototype clang type after this call
-                    clang_type = ast.CreateFunctionType (return_clang_type, 
-                                                         function_param_types.data(),
-                                                         function_param_types.size(), 
-                                                         is_variadic, 
-                                                         type_quals);
-
-                    bool ignore_containing_context = false;
-
-                    if (type_name_cstr)
-                    {
-                        bool type_handled = false;
-                        if (tag == DW_TAG_subprogram)
-                        {
-                            ObjCLanguageRuntime::MethodName objc_method (type_name_cstr, true);
-                            if (objc_method.IsValid(true))
-                            {
-                                ClangASTType class_opaque_type;
-                                ConstString class_name(objc_method.GetClassName());
-                                if (class_name)
-                                {
-                                    TypeSP complete_objc_class_type_sp (FindCompleteObjCDefinitionTypeForDIE (NULL, class_name, false));
-
-                                    if (complete_objc_class_type_sp)
-                                    {
-                                        ClangASTType type_clang_forward_type = complete_objc_class_type_sp->GetClangForwardType();
-                                        if (type_clang_forward_type.IsObjCObjectOrInterfaceType ())
-                                            class_opaque_type = type_clang_forward_type;
-                                    }
-                                }
-
-                                if (class_opaque_type)
-                                {
-                                    // If accessibility isn't set to anything valid, assume public for 
-                                    // now...
-                                    if (accessibility == eAccessNone)
-                                        accessibility = eAccessPublic;
-
-                                    clang::ObjCMethodDecl *objc_method_decl = class_opaque_type.AddMethodToObjCObjectType (type_name_cstr,
-                                                                                                                           clang_type,
-                                                                                                                           accessibility,
-                                                                                                                           is_artificial);
-                                    type_handled = objc_method_decl != NULL;
-                                    if (type_handled)
-                                    {
-                                        LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(objc_method_decl), die);
-                                        GetClangASTContext().SetMetadataAsUserID (objc_method_decl, MakeUserID(die->GetOffset()));
-                                    }
-                                    else
-                                    {
-                                        GetObjectFile()->GetModule()->ReportError ("{0x%8.8x}: invalid Objective-C method 0x%4.4x (%s), please file a bug and attach the file at the start of this error message",
-                                                                                   die->GetOffset(),
-                                                                                   tag,
-                                                                                   DW_TAG_value_to_name(tag));
-                                    }
-                                }
-                            }
-                            else if (is_cxx_method)
-                            {
-                                // Look at the parent of this DIE and see if is is
-                                // a class or struct and see if this is actually a
-                                // C++ method
-                                Type *class_type = ResolveType (dwarf_cu, decl_ctx_die);
-                                if (class_type)
-                                {
-                                    if (class_type->GetID() != MakeUserID(decl_ctx_die->GetOffset()))
-                                    {
-                                        // We uniqued the parent class of this function to another class
-                                        // so we now need to associate all dies under "decl_ctx_die" to
-                                        // DIEs in the DIE for "class_type"...
-                                        SymbolFileDWARF *class_symfile = NULL;
-                                        DWARFCompileUnitSP class_type_cu_sp;
-                                        const DWARFDebugInfoEntry *class_type_die = NULL;
-
-                                        SymbolFileDWARFDebugMap *debug_map_symfile = GetDebugMapSymfile();
-                                        if (debug_map_symfile)
-                                        {
-                                            class_symfile = debug_map_symfile->GetSymbolFileByOSOIndex(SymbolFileDWARFDebugMap::GetOSOIndexFromUserID(class_type->GetID()));
-                                            class_type_die = class_symfile->DebugInfo()->GetDIEPtr(class_type->GetID(), &class_type_cu_sp);
-                                        }
-                                        else
-                                        {
-                                            class_symfile = this;
-                                            class_type_die = DebugInfo()->GetDIEPtr(class_type->GetID(), &class_type_cu_sp);
-                                        }
-                                        if (class_type_die)
-                                        {
-                                            DWARFDIECollection failures;
-
-                                            CopyUniqueClassMethodTypes (class_symfile,
-                                                                        class_type,
-                                                                        class_type_cu_sp.get(),
-                                                                        class_type_die,
-                                                                        dwarf_cu,
-                                                                        decl_ctx_die,
-                                                                        failures);
-
-                                            // FIXME do something with these failures that's smarter than
-                                            // just dropping them on the ground.  Unfortunately classes don't
-                                            // like having stuff added to them after their definitions are
-                                            // complete...
-
-                                            type_ptr = m_die_to_type[die];
-                                            if (type_ptr && type_ptr != DIE_IS_BEING_PARSED)
-                                            {
-                                                type_sp = type_ptr->shared_from_this();
-                                                break;
-                                            }
-                                        }
-                                    }
-
-                                    if (specification_die_offset != DW_INVALID_OFFSET)
-                                    {
-                                        // We have a specification which we are going to base our function
-                                        // prototype off of, so we need this type to be completed so that the
-                                        // m_die_to_decl_ctx for the method in the specification has a valid
-                                        // clang decl context.
-                                        class_type->GetClangForwardType();
-                                        // If we have a specification, then the function type should have been
-                                        // made with the specification and not with this die.
-                                        DWARFCompileUnitSP spec_cu_sp;
-                                        const DWARFDebugInfoEntry* spec_die = DebugInfo()->GetDIEPtr(specification_die_offset, &spec_cu_sp);
-                                        clang::DeclContext *spec_clang_decl_ctx = GetClangDeclContextForDIE (sc, dwarf_cu, spec_die);
-                                        if (spec_clang_decl_ctx)
-                                        {
-                                            LinkDeclContextToDIE(spec_clang_decl_ctx, die);
-                                        }
-                                        else
-                                        {
-                                            GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64 ": DW_AT_specification(0x%8.8x) has no decl\n",
-                                                                                         MakeUserID(die->GetOffset()), 
-                                                                                         specification_die_offset);
-                                        }
-                                        type_handled = true;
-                                    }
-                                    else if (abstract_origin_die_offset != DW_INVALID_OFFSET)
-                                    {
-                                        // We have a specification which we are going to base our function
-                                        // prototype off of, so we need this type to be completed so that the
-                                        // m_die_to_decl_ctx for the method in the abstract origin has a valid
-                                        // clang decl context.
-                                        class_type->GetClangForwardType();
-
-                                        DWARFCompileUnitSP abs_cu_sp;
-                                        const DWARFDebugInfoEntry* abs_die = DebugInfo()->GetDIEPtr(abstract_origin_die_offset, &abs_cu_sp);
-                                        clang::DeclContext *abs_clang_decl_ctx = GetClangDeclContextForDIE (sc, dwarf_cu, abs_die);
-                                        if (abs_clang_decl_ctx)
-                                        {
-                                            LinkDeclContextToDIE (abs_clang_decl_ctx, die);
-                                        }
-                                        else
-                                        {
-                                            GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64 ": DW_AT_abstract_origin(0x%8.8x) has no decl\n",
-                                                                                         MakeUserID(die->GetOffset()), 
-                                                                                         abstract_origin_die_offset);
-                                        }
-                                        type_handled = true;
-                                    }
-                                    else
-                                    {
-                                        ClangASTType class_opaque_type = class_type->GetClangForwardType();
-                                        if (class_opaque_type.IsCXXClassType ())
-                                        {
-                                            if (class_opaque_type.IsBeingDefined ())
-                                            {
-                                                // Neither GCC 4.2 nor clang++ currently set a valid accessibility
-                                                // in the DWARF for C++ methods... Default to public for now...
-                                                if (accessibility == eAccessNone)
-                                                    accessibility = eAccessPublic;
-
-                                                if (!is_static && !die->HasChildren())
-                                                {
-                                                    // We have a C++ member function with no children (this pointer!)
-                                                    // and clang will get mad if we try and make a function that isn't
-                                                    // well formed in the DWARF, so we will just skip it...
-                                                    type_handled = true;
-                                                }
-                                                else
-                                                {
-                                                    clang::CXXMethodDecl *cxx_method_decl;
-                                                    // REMOVE THE CRASH DESCRIPTION BELOW
-                                                    Host::SetCrashDescriptionWithFormat ("SymbolFileDWARF::ParseType() is adding a method %s to class %s in DIE 0x%8.8" PRIx64 " from %s",
-                                                                                         type_name_cstr, 
-                                                                                         class_type->GetName().GetCString(),
-                                                                                         MakeUserID(die->GetOffset()),
-                                                                                         m_obj_file->GetFileSpec().GetPath().c_str());
-
-                                                    const bool is_attr_used = false;
-
-                                                    cxx_method_decl = class_opaque_type.AddMethodToCXXRecordType (type_name_cstr,
-                                                                                                                  clang_type,
-                                                                                                                  accessibility,
-                                                                                                                  is_virtual,
-                                                                                                                  is_static,
-                                                                                                                  is_inline,
-                                                                                                                  is_explicit,
-                                                                                                                  is_attr_used,
-                                                                                                                  is_artificial);
-
-                                                    type_handled = cxx_method_decl != NULL;
-
-                                                    if (type_handled)
-                                                    {
-                                                        LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(cxx_method_decl), die);
-
-                                                        Host::SetCrashDescription (NULL);
-
-
-                                                        ClangASTMetadata metadata;
-                                                        metadata.SetUserID(MakeUserID(die->GetOffset()));
-
-                                                        if (!object_pointer_name.empty())
-                                                        {
-                                                            metadata.SetObjectPtrName(object_pointer_name.c_str());
-                                                            if (log)
-                                                                log->Printf ("Setting object pointer name: %s on method object %p.\n",
-                                                                             object_pointer_name.c_str(),
-                                                                             static_cast<void*>(cxx_method_decl));
-                                                        }
-                                                        GetClangASTContext().SetMetadata (cxx_method_decl, metadata);
-                                                    }
-                                                    else
-                                                    {
-                                                        ignore_containing_context = true;
-                                                    }
-                                                }
-                                            }
-                                            else
-                                            {
-                                                // We were asked to parse the type for a method in a class, yet the
-                                                // class hasn't been asked to complete itself through the 
-                                                // clang::ExternalASTSource protocol, so we need to just have the
-                                                // class complete itself and do things the right way, then our 
-                                                // DIE should then have an entry in the m_die_to_type map. First 
-                                                // we need to modify the m_die_to_type so it doesn't think we are 
-                                                // trying to parse this DIE anymore...
-                                                m_die_to_type[die] = NULL;
-
-                                                // Now we get the full type to force our class type to complete itself 
-                                                // using the clang::ExternalASTSource protocol which will parse all 
-                                                // base classes and all methods (including the method for this DIE).
-                                                class_type->GetClangFullType();
-
-                                                // The type for this DIE should have been filled in the function call above
-                                                type_ptr = m_die_to_type[die];
-                                                if (type_ptr && type_ptr != DIE_IS_BEING_PARSED)
-                                                {
-                                                    type_sp = type_ptr->shared_from_this();
-                                                    break;
-                                                }
-
-                                                // FIXME This is fixing some even uglier behavior but we really need to
-                                                // uniq the methods of each class as well as the class itself.
-                                                // <rdar://problem/11240464>
-                                                type_handled = true;
-                                            }
-                                        }
-                                    }
-                                }
-                            }
-                        }
-
-                        if (!type_handled)
-                        {
-                            // We just have a function that isn't part of a class
-                            clang::FunctionDecl *function_decl = ast.CreateFunctionDeclaration (ignore_containing_context ? GetClangASTContext().GetTranslationUnitDecl() : containing_decl_ctx,
-                                                                                                type_name_cstr, 
-                                                                                                clang_type, 
-                                                                                                storage, 
-                                                                                                is_inline);
-
-//                            if (template_param_infos.GetSize() > 0)
-//                            {
-//                                clang::FunctionTemplateDecl *func_template_decl = ast.CreateFunctionTemplateDecl (containing_decl_ctx,
-//                                                                                                                  function_decl,
-//                                                                                                                  type_name_cstr, 
-//                                                                                                                  template_param_infos);
-//                                
-//                                ast.CreateFunctionTemplateSpecializationInfo (function_decl,
-//                                                                              func_template_decl,
-//                                                                              template_param_infos);
-//                            }
-                            // Add the decl to our DIE to decl context map
-                            assert (function_decl);
-                            LinkDeclContextToDIE(function_decl, die);
-                            if (!function_param_decls.empty())
-                                ast.SetFunctionParameters (function_decl, 
-                                                           &function_param_decls.front(), 
-                                                           function_param_decls.size());
-
-                            ClangASTMetadata metadata;
-                            metadata.SetUserID(MakeUserID(die->GetOffset()));
-
-                            if (!object_pointer_name.empty())
-                            {
-                                metadata.SetObjectPtrName(object_pointer_name.c_str());
-                                if (log)
-                                    log->Printf ("Setting object pointer name: %s on function object %p.",
-                                                 object_pointer_name.c_str(),
-                                                 static_cast<void*>(function_decl));
-                            }
-                            GetClangASTContext().SetMetadata (function_decl, metadata);
-                        }
-                    }
-                    type_sp.reset( new Type (MakeUserID(die->GetOffset()), 
-                                             this, 
-                                             type_name_const_str, 
-                                             0, 
-                                             NULL, 
-                                             LLDB_INVALID_UID, 
-                                             Type::eEncodingIsUID, 
-                                             &decl, 
-                                             clang_type, 
-                                             Type::eResolveStateFull));                    
-                    assert(type_sp.get());
-                }
-                break;
-
-            case DW_TAG_array_type:
-                {
-                    // Set a bit that lets us know that we are currently parsing this
-                    m_die_to_type[die] = DIE_IS_BEING_PARSED;
-
-                    lldb::user_id_t type_die_offset = DW_INVALID_OFFSET;
-                    int64_t first_index = 0;
-                    uint32_t byte_stride = 0;
-                    uint32_t bit_stride = 0;
-                    bool is_vector = false;
-                    const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
-
-                    if (num_attributes > 0)
-                    {
-                        uint32_t i;
-                        for (i=0; i<num_attributes; ++i)
-                        {
-                            attr = attributes.AttributeAtIndex(i);
-                            if (attributes.ExtractFormValueAtIndex(this, i, form_value))
-                            {
-                                switch (attr)
-                                {
-                                case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
-                                case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
-                                case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
-                                case DW_AT_name:
-                                    type_name_cstr = form_value.AsCString(&get_debug_str_data());
-                                    type_name_const_str.SetCString(type_name_cstr);
-                                    break;
-
-                                case DW_AT_type:            type_die_offset = form_value.Reference(); break;
-                                case DW_AT_byte_size:       break; // byte_size = form_value.Unsigned(); break;
-                                case DW_AT_byte_stride:     byte_stride = form_value.Unsigned(); break;
-                                case DW_AT_bit_stride:      bit_stride = form_value.Unsigned(); break;
-                                case DW_AT_GNU_vector:      is_vector = form_value.Boolean(); break;
-                                case DW_AT_accessibility:   break; // accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
-                                case DW_AT_declaration:     break; // is_forward_declaration = form_value.Boolean(); break;
-                                case DW_AT_allocated:
-                                case DW_AT_associated:
-                                case DW_AT_data_location:
-                                case DW_AT_description:
-                                case DW_AT_ordering:
-                                case DW_AT_start_scope:
-                                case DW_AT_visibility:
-                                case DW_AT_specification:
-                                case DW_AT_abstract_origin:
-                                case DW_AT_sibling:
-                                    break;
-                                }
-                            }
-                        }
-
-                        DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
-
-                        Type *element_type = ResolveTypeUID(type_die_offset);
-
-                        if (element_type)
-                        {
-                            std::vector<uint64_t> element_orders;
-                            ParseChildArrayInfo(sc, dwarf_cu, die, first_index, element_orders, byte_stride, bit_stride);
-                            if (byte_stride == 0 && bit_stride == 0)
-                                byte_stride = element_type->GetByteSize();
-                            ClangASTType array_element_type = element_type->GetClangForwardType();
-                            uint64_t array_element_bit_stride = byte_stride * 8 + bit_stride;
-                            if (element_orders.size() > 0)
-                            {
-                                uint64_t num_elements = 0;
-                                std::vector<uint64_t>::const_reverse_iterator pos;
-                                std::vector<uint64_t>::const_reverse_iterator end = element_orders.rend();
-                                for (pos = element_orders.rbegin(); pos != end; ++pos)
-                                {
-                                    num_elements = *pos;
-                                    clang_type = ast.CreateArrayType (array_element_type,
-                                                                      num_elements,
-                                                                      is_vector);
-                                    array_element_type = clang_type;
-                                    array_element_bit_stride = num_elements ?
-                                                               array_element_bit_stride * num_elements :
-                                                               array_element_bit_stride;
-                                }
-                            }
-                            else
-                            {
-                                clang_type = ast.CreateArrayType (array_element_type, 0, is_vector);
-                            }
-                            ConstString empty_name;
-                            type_sp.reset( new Type (MakeUserID(die->GetOffset()), 
-                                                     this, 
-                                                     empty_name, 
-                                                     array_element_bit_stride / 8, 
-                                                     NULL, 
-                                                     type_die_offset, 
-                                                     Type::eEncodingIsUID, 
-                                                     &decl, 
-                                                     clang_type, 
-                                                     Type::eResolveStateFull));
-                            type_sp->SetEncodingType (element_type);
-                        }
-                    }
-                }
-                break;
+        TypeSystem *type_system = GetTypeSystemForLanguage(die.GetCU()->GetLanguageType());
 
-            case DW_TAG_ptr_to_member_type:
-                {
-                    dw_offset_t type_die_offset = DW_INVALID_OFFSET;
-                    dw_offset_t containing_type_die_offset = DW_INVALID_OFFSET;
-
-                    const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
-
-                    if (num_attributes > 0) {
-                        uint32_t i;
-                        for (i=0; i<num_attributes; ++i)
-                        {
-                            attr = attributes.AttributeAtIndex(i);
-                            if (attributes.ExtractFormValueAtIndex(this, i, form_value))
-                            {
-                                switch (attr)
-                                {
-                                    case DW_AT_type:
-                                        type_die_offset = form_value.Reference(); break;
-                                    case DW_AT_containing_type:
-                                        containing_type_die_offset = form_value.Reference(); break;
-                                }
-                            }
-                        }
-
-                        Type *pointee_type = ResolveTypeUID(type_die_offset);
-                        Type *class_type = ResolveTypeUID(containing_type_die_offset);
-
-                        ClangASTType pointee_clang_type = pointee_type->GetClangForwardType();
-                        ClangASTType class_clang_type = class_type->GetClangLayoutType();
-
-                        clang_type = pointee_clang_type.CreateMemberPointerType(class_clang_type);
-
-                        byte_size = clang_type.GetByteSize(nullptr);
-
-                        type_sp.reset( new Type (MakeUserID(die->GetOffset()), 
-                                                 this, 
-                                                 type_name_const_str, 
-                                                 byte_size, 
-                                                 NULL, 
-                                                 LLDB_INVALID_UID, 
-                                                 Type::eEncodingIsUID, 
-                                                 NULL, 
-                                                 clang_type, 
-                                                 Type::eResolveStateForward));
-                    }
-
-                    break;
-                }
-            default:
-                GetObjectFile()->GetModule()->ReportError ("{0x%8.8x}: unhandled type tag 0x%4.4x (%s), please file a bug and attach the file at the start of this error message",
-                                                           die->GetOffset(),
-                                                           tag,
-                                                           DW_TAG_value_to_name(tag));
-                break;
-            }
-
-            if (type_sp.get())
+        if (type_system)
+        {
+            DWARFASTParser *dwarf_ast = type_system->GetDWARFParser();
+            if (dwarf_ast)
             {
-                const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(die);
-                dw_tag_t sc_parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0;
-
-                SymbolContextScope * symbol_context_scope = NULL;
-                if (sc_parent_tag == DW_TAG_compile_unit)
+                Log *log = LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO);
+                type_sp = dwarf_ast->ParseTypeFromDWARF (sc, die, log, type_is_new_ptr);
+                if (type_sp)
                 {
-                    symbol_context_scope = sc.comp_unit;
+                    TypeList* type_list = GetTypeList();
+                    if (type_list)
+                        type_list->Insert(type_sp);
                 }
-                else if (sc.function != NULL && sc_parent_die)
-                {
-                    symbol_context_scope = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset()));
-                    if (symbol_context_scope == NULL)
-                        symbol_context_scope = sc.function;
-                }
-
-                if (symbol_context_scope != NULL)
-                {
-                    type_sp->SetSymbolContextScope(symbol_context_scope);
-                }
-
-                // We are ready to put this type into the uniqued list up at the module level
-                type_list->Insert (type_sp);
-
-                m_die_to_type[die] = type_sp.get();
             }
         }
-        else if (type_ptr != DIE_IS_BEING_PARSED)
-        {
-            type_sp = type_ptr->shared_from_this();
-        }
     }
+    
     return type_sp;
 }
 
@@ -7185,38 +3763,38 @@ size_t
 SymbolFileDWARF::ParseTypes
 (
     const SymbolContext& sc, 
-    DWARFCompileUnit* dwarf_cu, 
-    const DWARFDebugInfoEntry *die, 
+    const DWARFDIE &orig_die,
     bool parse_siblings, 
     bool parse_children
 )
 {
     size_t types_added = 0;
-    while (die != NULL)
+    DWARFDIE die = orig_die;
+    while (die)
     {
         bool type_is_new = false;
-        if (ParseType(sc, dwarf_cu, die, &type_is_new).get())
+        if (ParseType(sc, die, &type_is_new).get())
         {
             if (type_is_new)
                 ++types_added;
         }
 
-        if (parse_children && die->HasChildren())
+        if (parse_children && die.HasChildren())
         {
-            if (die->Tag() == DW_TAG_subprogram)
+            if (die.Tag() == DW_TAG_subprogram)
             {
                 SymbolContext child_sc(sc);
-                child_sc.function = sc.comp_unit->FindFunctionByUID(MakeUserID(die->GetOffset())).get();
-                types_added += ParseTypes(child_sc, dwarf_cu, die->GetFirstChild(), true, true);
+                child_sc.function = sc.comp_unit->FindFunctionByUID(die.GetID()).get();
+                types_added += ParseTypes(child_sc, die.GetFirstChild(), true, true);
             }
             else
-                types_added += ParseTypes(sc, dwarf_cu, die->GetFirstChild(), true, true);
+                types_added += ParseTypes(sc, die.GetFirstChild(), true, true);
         }
 
         if (parse_siblings)
-            die = die->GetSibling();
+            die = die.GetSibling();
         else
-            die = NULL;
+            die.Clear();
     }
     return types_added;
 }
@@ -7230,11 +3808,11 @@ SymbolFileDWARF::ParseFunctionBlocks (const SymbolContext &sc)
     DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
     if (dwarf_cu)
     {
-        dw_offset_t function_die_offset = sc.function->GetID();
-        const DWARFDebugInfoEntry *function_die = dwarf_cu->GetDIEPtr(function_die_offset);
+        const dw_offset_t function_die_offset = sc.function->GetID();
+        DWARFDIE function_die = dwarf_cu->GetDIE (function_die_offset);
         if (function_die)
         {
-            ParseFunctionBlocks(sc, &sc.function->GetBlock (false), dwarf_cu, function_die, LLDB_INVALID_ADDRESS, 0);
+            ParseFunctionBlocks(sc, &sc.function->GetBlock (false), function_die, LLDB_INVALID_ADDRESS, 0);
         }
     }
 
@@ -7254,18 +3832,18 @@ SymbolFileDWARF::ParseTypes (const SymbolContext &sc)
         if (sc.function)
         {
             dw_offset_t function_die_offset = sc.function->GetID();
-            const DWARFDebugInfoEntry *func_die = dwarf_cu->GetDIEPtr(function_die_offset);
-            if (func_die && func_die->HasChildren())
+            DWARFDIE func_die = dwarf_cu->GetDIE(function_die_offset);
+            if (func_die && func_die.HasChildren())
             {
-                types_added = ParseTypes(sc, dwarf_cu, func_die->GetFirstChild(), true, true);
+                types_added = ParseTypes(sc, func_die.GetFirstChild(), true, true);
             }
         }
         else
         {
-            const DWARFDebugInfoEntry *dwarf_cu_die = dwarf_cu->DIE();
-            if (dwarf_cu_die && dwarf_cu_die->HasChildren())
+            DWARFDIE dwarf_cu_die = dwarf_cu->DIE();
+            if (dwarf_cu_die && dwarf_cu_die.HasChildren())
             {
-                types_added = ParseTypes(sc, dwarf_cu, dwarf_cu_die->GetFirstChild(), true, true);
+                types_added = ParseTypes(sc, dwarf_cu_die.GetFirstChild(), true, true);
             }
         }
     }
@@ -7284,17 +3862,12 @@ SymbolFileDWARF::ParseVariablesForContext (const SymbolContext& sc)
         
         if (sc.function)
         {
-            DWARFCompileUnit* dwarf_cu = info->GetCompileUnitContainingDIE(sc.function->GetID()).get();
+            DWARFDIE function_die = info->GetDIE(DIERef(sc.function->GetID()));
             
-            if (dwarf_cu == NULL)
-                return 0;
-            
-            const DWARFDebugInfoEntry *function_die = dwarf_cu->GetDIEPtr(sc.function->GetID());
-            
-            dw_addr_t func_lo_pc = function_die->GetAttributeValueAsUnsigned (this, dwarf_cu, DW_AT_low_pc, LLDB_INVALID_ADDRESS);
+            const dw_addr_t func_lo_pc = function_die.GetAttributeValueAsAddress (DW_AT_low_pc, LLDB_INVALID_ADDRESS);
             if (func_lo_pc != LLDB_INVALID_ADDRESS)
             {
-                const size_t num_variables = ParseVariables(sc, dwarf_cu, func_lo_pc, function_die->GetFirstChild(), true, true);
+                const size_t num_variables = ParseVariables(sc, function_die.GetFirstChild(), func_lo_pc, true, true);
             
                 // Let all blocks know they have parse all their variables
                 sc.function->GetBlock (false).SetDidParseVariables (true, true);
@@ -7303,7 +3876,7 @@ SymbolFileDWARF::ParseVariablesForContext (const SymbolContext& sc)
         }
         else if (sc.comp_unit)
         {
-            DWARFCompileUnit* dwarf_cu = info->GetCompileUnit(sc.comp_unit->GetID()).get();
+            DWARFCompileUnit* dwarf_cu = info->GetCompileUnit(sc.comp_unit->GetID());
 
             if (dwarf_cu == NULL)
                 return 0;
@@ -7316,8 +3889,6 @@ SymbolFileDWARF::ParseVariablesForContext (const SymbolContext& sc)
                 variables.reset(new VariableList());
                 sc.comp_unit->SetVariableList(variables);
 
-                DWARFCompileUnit* match_dwarf_cu = NULL;
-                const DWARFDebugInfoEntry* die = NULL;
                 DIEArray die_offsets;
                 if (m_using_apple_tables)
                 {
@@ -7340,7 +3911,6 @@ SymbolFileDWARF::ParseVariablesForContext (const SymbolContext& sc)
                         Index ();
 
                     m_global_index.FindAllEntriesForCompileUnit (dwarf_cu->GetOffset(), 
-                                                                 dwarf_cu->GetNextCompileUnitOffset(), 
                                                                  die_offsets);
                 }
 
@@ -7350,11 +3920,11 @@ SymbolFileDWARF::ParseVariablesForContext (const SymbolContext& sc)
                     DWARFDebugInfo* debug_info = DebugInfo();
                     for (size_t i=0; i<num_matches; ++i)
                     {
-                        const dw_offset_t die_offset = die_offsets[i];
-                        die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &match_dwarf_cu);
+                        const DIERef& die_ref = die_offsets[i];
+                        DWARFDIE die = debug_info->GetDIE (die_ref);
                         if (die)
                         {
-                            VariableSP var_sp (ParseVariableDIE(sc, dwarf_cu, die, LLDB_INVALID_ADDRESS));
+                            VariableSP var_sp (ParseVariableDIE(sc, die, LLDB_INVALID_ADDRESS));
                             if (var_sp)
                             {
                                 variables->AddVariableIfUnique (var_sp);
@@ -7365,7 +3935,7 @@ SymbolFileDWARF::ParseVariablesForContext (const SymbolContext& sc)
                         {
                             if (m_using_apple_tables)
                             {
-                                GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x)\n", die_offset);
+                                GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x)\n", die_ref.die_offset);
                             }
                         }            
 
@@ -7378,37 +3948,43 @@ SymbolFileDWARF::ParseVariablesForContext (const SymbolContext& sc)
     return 0;
 }
 
-
 VariableSP
 SymbolFileDWARF::ParseVariableDIE
 (
     const SymbolContext& sc,
-    DWARFCompileUnit* dwarf_cu,
-    const DWARFDebugInfoEntry *die,
+    const DWARFDIE &die,
     const lldb::addr_t func_low_pc
 )
 {
-    VariableSP var_sp (m_die_to_variable_sp[die]);
+    if (die.GetDWARF() != this)
+        return die.GetDWARF()->ParseVariableDIE(sc, die, func_low_pc);
+
+    VariableSP var_sp;
+    if (!die)
+        return var_sp;
+
+    var_sp = GetDIEToVariable()[die.GetDIE()];
     if (var_sp)
         return var_sp;  // Already been parsed!
     
-    const dw_tag_t tag = die->Tag();
+    const dw_tag_t tag = die.Tag();
     ModuleSP module = GetObjectFile()->GetModule();
     
     if ((tag == DW_TAG_variable) ||
         (tag == DW_TAG_constant) ||
         (tag == DW_TAG_formal_parameter && sc.function))
     {
-        DWARFDebugInfoEntry::Attributes attributes;
-        const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
+        DWARFAttributes attributes;
+        const size_t num_attributes = die.GetAttributes(attributes);
+        DWARFDIE spec_die;
         if (num_attributes > 0)
         {
             const char *name = NULL;
             const char *mangled = NULL;
             Declaration decl;
             uint32_t i;
-            lldb::user_id_t type_uid = LLDB_INVALID_UID;
-            DWARFExpression location;
+            DWARFFormValue type_die_form;
+            DWARFExpression location(die.GetCU());
             bool is_external = false;
             bool is_artificial = false;
             bool location_is_const_value_data = false;
@@ -7421,17 +3997,17 @@ SymbolFileDWARF::ParseVariableDIE
                 dw_attr_t attr = attributes.AttributeAtIndex(i);
                 DWARFFormValue form_value;
                 
-                if (attributes.ExtractFormValueAtIndex(this, i, form_value))
+                if (attributes.ExtractFormValueAtIndex(i, form_value))
                 {
                     switch (attr)
                     {
                     case DW_AT_decl_file:   decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
                     case DW_AT_decl_line:   decl.SetLine(form_value.Unsigned()); break;
                     case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
-                    case DW_AT_name:        name = form_value.AsCString(&get_debug_str_data()); break;
+                    case DW_AT_name:        name = form_value.AsCString(); break;
                     case DW_AT_linkage_name:
-                    case DW_AT_MIPS_linkage_name: mangled = form_value.AsCString(&get_debug_str_data()); break;
-                    case DW_AT_type:        type_uid = form_value.Reference(); break;
+                    case DW_AT_MIPS_linkage_name: mangled = form_value.AsCString(); break;
+                    case DW_AT_type:        type_die_form = form_value; break;
                     case DW_AT_external:    is_external = form_value.Boolean(); break;
                     case DW_AT_const_value:
                         // If we have already found a DW_AT_location attribute, ignore this attribute.
@@ -7450,9 +4026,12 @@ SymbolFileDWARF::ParseVariableDIE
                             else if (DWARFFormValue::IsDataForm(form_value.Form()))
                             {
                                 // Retrieve the value as a data expression.
-                                const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (attributes.CompileUnitAtIndex(i)->GetAddressByteSize(), attributes.CompileUnitAtIndex(i)->IsDWARF64());
+                                DWARFFormValue::FixedFormSizes fixed_form_sizes =
+                                    DWARFFormValue::GetFixedFormSizesForAddressSize (
+                                            attributes.CompileUnitAtIndex(i)->GetAddressByteSize(),
+                                            attributes.CompileUnitAtIndex(i)->IsDWARF64());
                                 uint32_t data_offset = attributes.DIEOffsetAtIndex(i);
-                                uint32_t data_length = fixed_form_sizes[form_value.Form()];
+                                uint32_t data_length = fixed_form_sizes.GetSize(form_value.Form());
                                 if (data_length == 0)
                                 {
                                     const uint8_t *data_pointer = form_value.BlockData();
@@ -7474,14 +4053,17 @@ SymbolFileDWARF::ParseVariableDIE
                                 // Retrieve the value as a string expression.
                                 if (form_value.Form() == DW_FORM_strp)
                                 {
-                                    const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (attributes.CompileUnitAtIndex(i)->GetAddressByteSize(), attributes.CompileUnitAtIndex(i)->IsDWARF64());
+                                    DWARFFormValue::FixedFormSizes fixed_form_sizes =
+                                        DWARFFormValue::GetFixedFormSizesForAddressSize (
+                                                attributes.CompileUnitAtIndex(i)->GetAddressByteSize(),
+                                                attributes.CompileUnitAtIndex(i)->IsDWARF64());
                                     uint32_t data_offset = attributes.DIEOffsetAtIndex(i);
-                                    uint32_t data_length = fixed_form_sizes[form_value.Form()];
+                                    uint32_t data_length = fixed_form_sizes.GetSize(form_value.Form());
                                     location.CopyOpcodeData(module, debug_info_data, data_offset, data_length);
                                 }
                                 else
                                 {
-                                    const char *str = form_value.AsCString(&debug_info_data);
+                                    const char *str = form_value.AsCString();
                                     uint32_t string_offset = str - (const char *)debug_info_data.GetDataStart();
                                     uint32_t string_length = strlen(str) + 1;
                                     location.CopyOpcodeData(module, debug_info_data, string_offset, string_length);
@@ -7503,10 +4085,10 @@ SymbolFileDWARF::ParseVariableDIE
                             }
                             else
                             {
-                                const DWARFDataExtractor&    debug_loc_data = get_debug_loc_data();
+                                const DWARFDataExtractor& debug_loc_data = get_debug_loc_data();
                                 const dw_offset_t debug_loc_offset = form_value.Unsigned();
 
-                                size_t loc_list_length = DWARFLocationList::Size(debug_loc_data, debug_loc_offset);
+                                size_t loc_list_length = DWARFExpression::LocationListSize(die.GetCU(), debug_loc_data, debug_loc_offset);
                                 if (loc_list_length > 0)
                                 {
                                     location.CopyOpcodeData(module, debug_loc_data, debug_loc_offset, loc_list_length);
@@ -7516,7 +4098,13 @@ SymbolFileDWARF::ParseVariableDIE
                             }
                         }
                         break;
-
+                    case DW_AT_specification:
+                    {
+                        DWARFDebugInfo* debug_info = DebugInfo();
+                        if (debug_info)
+                            spec_die = debug_info->GetDIE(DIERef(form_value));
+                        break;
+                    }
                     case DW_AT_artificial:      is_artificial = form_value.Boolean(); break;
                     case DW_AT_accessibility:   break; //accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
                     case DW_AT_declaration:
@@ -7528,16 +4116,18 @@ SymbolFileDWARF::ParseVariableDIE
                     default:
                     case DW_AT_abstract_origin:
                     case DW_AT_sibling:
-                    case DW_AT_specification:
                         break;
                     }
                 }
             }
 
+            const DWARFDIE parent_context_die = GetDeclContextDIEContainingDIE(die);
+            const dw_tag_t parent_tag = die.GetParent().Tag();
+            bool is_static_member = parent_tag == DW_TAG_compile_unit && (parent_context_die.Tag() == DW_TAG_class_type || parent_context_die.Tag() == DW_TAG_structure_type);
+
             ValueType scope = eValueTypeInvalid;
 
-            const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(die);
-            dw_tag_t parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0;
+            const DWARFDIE sc_parent_die = GetParentSymbolContextDIE(die);
             SymbolContextScope * symbol_context_scope = NULL;
 
             if (!mangled)
@@ -7548,12 +4138,12 @@ SymbolFileDWARF::ParseVariableDIE
                 // B which in turn is contained in a namespace A, the command "frame var j" returns
                 // "(int) A::B::j = 4". If the compiler does not emit a linkage name, we should be able
                 // to generate a fully qualified name from the declaration context.
-                if (die->GetParent()->Tag() == DW_TAG_compile_unit &&
-                    LanguageRuntime::LanguageIsCPlusPlus(dwarf_cu->GetLanguageType()))
+                if (parent_tag == DW_TAG_compile_unit &&
+                    Language::LanguageIsCPlusPlus(die.GetLanguage()))
                 {
                     DWARFDeclContext decl_ctx;
 
-                    die->GetDWARFDeclContext(this, dwarf_cu, decl_ctx);
+                    die.GetDWARFDeclContext(decl_ctx);
                     mangled = decl_ctx.GetQualifiedNameAsConstString().GetCString();
                 }
             }
@@ -7582,7 +4172,7 @@ SymbolFileDWARF::ParseVariableDIE
                     {
                         StreamString strm;
                         location.DumpLocationForAddress (&strm, eDescriptionLevelFull, 0, 0, NULL);
-                        GetObjectFile()->GetModule()->ReportError ("0x%8.8x: %s has an invalid location: %s", die->GetOffset(), DW_TAG_value_to_name(die->Tag()), strm.GetString().c_str());
+                        GetObjectFile()->GetModule()->ReportError ("0x%8.8x: %s has an invalid location: %s", die.GetOffset(), die.GetTagAsCString(), strm.GetString().c_str());
                     }
                 }
 
@@ -7670,7 +4260,10 @@ SymbolFileDWARF::ParseVariableDIE
                 }
                 else
                 {
-                    scope = eValueTypeVariableLocal;
+                    if (location_is_const_value_data)
+                        scope = eValueTypeVariableStatic;
+                    else
+                        scope = eValueTypeVariableLocal;
                 }
             }
 
@@ -7683,7 +4276,7 @@ SymbolFileDWARF::ParseVariableDIE
                 case DW_TAG_lexical_block:
                     if (sc.function)
                     {
-                        symbol_context_scope = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset()));
+                        symbol_context_scope = sc.function->GetBlock(true).FindBlockByID(sc_parent_die.GetID());
                         if (symbol_context_scope == NULL)
                             symbol_context_scope = sc.function;
                     }
@@ -7697,12 +4290,12 @@ SymbolFileDWARF::ParseVariableDIE
 
             if (symbol_context_scope)
             {
-                SymbolFileTypeSP type_sp(new SymbolFileType(*this, type_uid));
+                SymbolFileTypeSP type_sp(new SymbolFileType(*this, DIERef(type_die_form).GetUID()));
                 
                 if (const_value.Form() && type_sp && type_sp->GetType())
-                    location.CopyOpcodeData(const_value.Unsigned(), type_sp->GetType()->GetByteSize(), dwarf_cu->GetAddressByteSize());
+                    location.CopyOpcodeData(const_value.Unsigned(), type_sp->GetType()->GetByteSize(), die.GetCU()->GetAddressByteSize());
                 
-                var_sp.reset (new Variable (MakeUserID(die->GetOffset()), 
+                var_sp.reset (new Variable (die.GetID(),
                                             name, 
                                             mangled,
                                             type_sp,
@@ -7711,7 +4304,8 @@ SymbolFileDWARF::ParseVariableDIE
                                             &decl, 
                                             location, 
                                             is_external, 
-                                            is_artificial));
+                                            is_artificial,
+                                            is_static_member));
                 
                 var_sp->SetLocationIsConstantValueData (location_is_const_value_data);
             }
@@ -7727,57 +4321,42 @@ SymbolFileDWARF::ParseVariableDIE
         // was missing vital information to be able to be displayed in the debugger
         // (missing location due to optimization, etc)) so we don't re-parse
         // this DIE over and over later...
-        m_die_to_variable_sp[die] = var_sp;
+        GetDIEToVariable()[die.GetDIE()] = var_sp;
+        if (spec_die)
+            GetDIEToVariable()[spec_die.GetDIE()] = var_sp;
     }
     return var_sp;
 }
 
 
-const DWARFDebugInfoEntry *
-SymbolFileDWARF::FindBlockContainingSpecification (dw_offset_t func_die_offset, 
-                                                   dw_offset_t spec_block_die_offset,
-                                                   DWARFCompileUnit **result_die_cu_handle)
+DWARFDIE
+SymbolFileDWARF::FindBlockContainingSpecification (const DIERef& func_die_ref,
+                                                   dw_offset_t spec_block_die_offset)
 {
     // Give the concrete function die specified by "func_die_offset", find the 
     // concrete block whose DW_AT_specification or DW_AT_abstract_origin points
     // to "spec_block_die_offset"
-    DWARFDebugInfo* info = DebugInfo();
-
-    const DWARFDebugInfoEntry *die = info->GetDIEPtrWithCompileUnitHint(func_die_offset, result_die_cu_handle);
-    if (die)
-    {
-        assert (*result_die_cu_handle);
-        return FindBlockContainingSpecification (*result_die_cu_handle, die, spec_block_die_offset, result_die_cu_handle);
-    }
-    return NULL;
+    return FindBlockContainingSpecification (DebugInfo()->GetDIE (func_die_ref), spec_block_die_offset);
 }
 
 
-const DWARFDebugInfoEntry *
-SymbolFileDWARF::FindBlockContainingSpecification(DWARFCompileUnit* dwarf_cu,
-                                                  const DWARFDebugInfoEntry *die,
-                                                  dw_offset_t spec_block_die_offset,
-                                                  DWARFCompileUnit **result_die_cu_handle)
+DWARFDIE
+SymbolFileDWARF::FindBlockContainingSpecification(const DWARFDIE &die,
+                                                  dw_offset_t spec_block_die_offset)
 {
     if (die)
     {
-        switch (die->Tag())
+        switch (die.Tag())
         {
         case DW_TAG_subprogram:
         case DW_TAG_inlined_subroutine:
         case DW_TAG_lexical_block:
             {
-                if (die->GetAttributeValueAsReference (this, dwarf_cu, DW_AT_specification, DW_INVALID_OFFSET) == spec_block_die_offset)
-                {
-                    *result_die_cu_handle = dwarf_cu;
+                if (die.GetAttributeValueAsReference (DW_AT_specification, DW_INVALID_OFFSET) == spec_block_die_offset)
                     return die;
-                }
 
-                if (die->GetAttributeValueAsReference (this, dwarf_cu, DW_AT_abstract_origin, DW_INVALID_OFFSET) == spec_block_die_offset)
-                {
-                    *result_die_cu_handle = dwarf_cu;
+                if (die.GetAttributeValueAsReference (DW_AT_abstract_origin, DW_INVALID_OFFSET) == spec_block_die_offset)
                     return die;
-                }
             }
             break;
         }
@@ -7785,49 +4364,42 @@ SymbolFileDWARF::FindBlockContainingSpecification(DWARFCompileUnit* dwarf_cu,
         // Give the concrete function die specified by "func_die_offset", find the 
         // concrete block whose DW_AT_specification or DW_AT_abstract_origin points
         // to "spec_block_die_offset"
-        for (const DWARFDebugInfoEntry *child_die = die->GetFirstChild(); child_die != NULL; child_die = child_die->GetSibling())
+        for (DWARFDIE child_die = die.GetFirstChild(); child_die; child_die = child_die.GetSibling())
         {
-            const DWARFDebugInfoEntry *result_die = FindBlockContainingSpecification (dwarf_cu,
-                                                                                      child_die,
-                                                                                      spec_block_die_offset,
-                                                                                      result_die_cu_handle);
+            DWARFDIE result_die = FindBlockContainingSpecification (child_die, spec_block_die_offset);
             if (result_die)
                 return result_die;
         }
     }
     
-    *result_die_cu_handle = NULL;
-    return NULL;
+    return DWARFDIE();
 }
 
 size_t
-SymbolFileDWARF::ParseVariables
-(
-    const SymbolContext& sc,
-    DWARFCompileUnit* dwarf_cu,
-    const lldb::addr_t func_low_pc,
-    const DWARFDebugInfoEntry *orig_die,
-    bool parse_siblings,
-    bool parse_children,
-    VariableList* cc_variable_list
-)
+SymbolFileDWARF::ParseVariables (const SymbolContext& sc,
+                                 const DWARFDIE &orig_die,
+                                 const lldb::addr_t func_low_pc,
+                                 bool parse_siblings,
+                                 bool parse_children,
+                                 VariableList* cc_variable_list)
 {
-    if (orig_die == NULL)
+    if (!orig_die)
         return 0;
 
     VariableListSP variable_list_sp;
 
     size_t vars_added = 0;
-    const DWARFDebugInfoEntry *die = orig_die;
-    while (die != NULL)
+    DWARFDIE die = orig_die;
+    while (die)
     {
-        dw_tag_t tag = die->Tag();
+        dw_tag_t tag = die.Tag();
 
         // Check to see if we have already parsed this variable or constant?
-        if (m_die_to_variable_sp[die])
+        VariableSP var_sp = GetDIEToVariable()[die.GetDIE()];
+        if (var_sp)
         {
             if (cc_variable_list)
-                cc_variable_list->AddVariableIfUnique (m_die_to_variable_sp[die]);
+                cc_variable_list->AddVariableIfUnique (var_sp);
         }
         else
         {
@@ -7838,8 +4410,8 @@ SymbolFileDWARF::ParseVariables
             {
                 if (variable_list_sp.get() == NULL)
                 {
-                    const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(orig_die);
-                    dw_tag_t parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0;
+                    DWARFDIE sc_parent_die = GetParentSymbolContextDIE(orig_die);
+                    dw_tag_t parent_tag = sc_parent_die.Tag();
                     switch (parent_tag)
                     {
                         case DW_TAG_compile_unit:
@@ -7855,10 +4427,10 @@ SymbolFileDWARF::ParseVariables
                             else
                             {
                                 GetObjectFile()->GetModule()->ReportError ("parent 0x%8.8" PRIx64 " %s with no valid compile unit in symbol context for 0x%8.8" PRIx64 " %s.\n",
-                                                                           MakeUserID(sc_parent_die->GetOffset()),
-                                                                           DW_TAG_value_to_name (parent_tag),
-                                                                           MakeUserID(orig_die->GetOffset()),
-                                                                           DW_TAG_value_to_name (orig_die->Tag()));
+                                                                           sc_parent_die.GetID(),
+                                                                           sc_parent_die.GetTagAsCString(),
+                                                                           orig_die.GetID(),
+                                                                           orig_die.GetTagAsCString());
                             }
                             break;
                             
@@ -7869,19 +4441,17 @@ SymbolFileDWARF::ParseVariables
                             {
                                 // Check to see if we already have parsed the variables for the given scope
                                 
-                                Block *block = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset()));
+                                Block *block = sc.function->GetBlock(true).FindBlockByID(sc_parent_die.GetID());
                                 if (block == NULL)
                                 {
                                     // This must be a specification or abstract origin with 
                                     // a concrete block counterpart in the current function. We need
                                     // to find the concrete block so we can correctly add the 
                                     // variable to it
-                                    DWARFCompileUnit *concrete_block_die_cu = dwarf_cu;
-                                    const DWARFDebugInfoEntry *concrete_block_die = FindBlockContainingSpecification (sc.function->GetID(), 
-                                                                                                                      sc_parent_die->GetOffset(), 
-                                                                                                                      &concrete_block_die_cu);
+                                    const DWARFDIE concrete_block_die = FindBlockContainingSpecification (DIERef(sc.function->GetID()),
+                                                                                                          sc_parent_die.GetOffset());
                                     if (concrete_block_die)
-                                        block = sc.function->GetBlock(true).FindBlockByID(MakeUserID(concrete_block_die->GetOffset()));
+                                        block = sc.function->GetBlock(true).FindBlockByID(concrete_block_die.GetID());
                                 }
                                 
                                 if (block != NULL)
@@ -7899,15 +4469,15 @@ SymbolFileDWARF::ParseVariables
                             
                         default:
                              GetObjectFile()->GetModule()->ReportError ("didn't find appropriate parent DIE for variable list for 0x%8.8" PRIx64 " %s.\n",
-                                                                        MakeUserID(orig_die->GetOffset()),
-                                                                        DW_TAG_value_to_name (orig_die->Tag()));
+                                                                        orig_die.GetID(),
+                                                                        orig_die.GetTagAsCString());
                             break;
                     }
                 }
                 
                 if (variable_list_sp)
                 {
-                    VariableSP var_sp (ParseVariableDIE(sc, dwarf_cu, die, func_low_pc));
+                    VariableSP var_sp (ParseVariableDIE(sc, die, func_low_pc));
                     if (var_sp)
                     {
                         variable_list_sp->AddVariableIfUnique (var_sp);
@@ -7921,15 +4491,15 @@ SymbolFileDWARF::ParseVariables
 
         bool skip_children = (sc.function == NULL && tag == DW_TAG_subprogram);
 
-        if (!skip_children && parse_children && die->HasChildren())
+        if (!skip_children && parse_children && die.HasChildren())
         {
-            vars_added += ParseVariables(sc, dwarf_cu, func_low_pc, die->GetFirstChild(), true, true, cc_variable_list);
+            vars_added += ParseVariables(sc, die.GetFirstChild(), func_low_pc, true, true, cc_variable_list);
         }
 
         if (parse_siblings)
-            die = die->GetSibling();
+            die = die.GetSibling();
         else
-            die = NULL;
+            die.Clear();
     }
     return vars_added;
 }
@@ -7950,24 +4520,6 @@ SymbolFileDWARF::GetPluginVersion()
 }
 
 void
-SymbolFileDWARF::CompleteTagDecl (void *baton, clang::TagDecl *decl)
-{
-    SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton;
-    ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl);
-    if (clang_type)
-        symbol_file_dwarf->ResolveClangOpaqueTypeDefinition (clang_type);
-}
-
-void
-SymbolFileDWARF::CompleteObjCInterfaceDecl (void *baton, clang::ObjCInterfaceDecl *decl)
-{
-    SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton;
-    ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl);
-    if (clang_type)
-        symbol_file_dwarf->ResolveClangOpaqueTypeDefinition (clang_type);
-}
-
-void
 SymbolFileDWARF::DumpIndexes ()
 {
     StreamFile s(stdout, false);
@@ -7982,147 +4534,7 @@ SymbolFileDWARF::DumpIndexes ()
     s.Printf("\nObjective C class selectors:\n");    m_objc_class_selectors_index.Dump (&s);
     s.Printf("\nGlobals and statics:\n");   m_global_index.Dump (&s); 
     s.Printf("\nTypes:\n");                 m_type_index.Dump (&s);
-    s.Printf("\nNamepaces:\n");             m_namespace_index.Dump (&s);
-}
-
-void
-SymbolFileDWARF::SearchDeclContext (const clang::DeclContext *decl_context, 
-                                    const char *name, 
-                                    llvm::SmallVectorImpl <clang::NamedDecl *> *results)
-{    
-    DeclContextToDIEMap::iterator iter = m_decl_ctx_to_die.find(decl_context);
-    
-    if (iter == m_decl_ctx_to_die.end())
-        return;
-    
-    for (DIEPointerSet::iterator pos = iter->second.begin(), end = iter->second.end(); pos != end; ++pos)
-    {
-        const DWARFDebugInfoEntry *context_die = *pos;
-    
-        if (!results)
-            return;
-        
-        DWARFDebugInfo* info = DebugInfo();
-        
-        DIEArray die_offsets;
-        
-        DWARFCompileUnit* dwarf_cu = NULL;
-        const DWARFDebugInfoEntry* die = NULL;
-        
-        if (m_using_apple_tables)
-        {
-            if (m_apple_types_ap.get())
-                m_apple_types_ap->FindByName (name, die_offsets);
-        }
-        else
-        {
-            if (!m_indexed)
-                Index ();
-            
-            m_type_index.Find (ConstString(name), die_offsets);
-        }
-        
-        const size_t num_matches = die_offsets.size();
-        
-        if (num_matches)
-        {
-            for (size_t i = 0; i < num_matches; ++i)
-            {
-                const dw_offset_t die_offset = die_offsets[i];
-                die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
-
-                if (die->GetParent() != context_die)
-                    continue;
-                
-                Type *matching_type = ResolveType (dwarf_cu, die);
-                
-                clang::QualType qual_type = matching_type->GetClangForwardType().GetQualType();
-                
-                if (const clang::TagType *tag_type = llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr()))
-                {
-                    clang::TagDecl *tag_decl = tag_type->getDecl();
-                    results->push_back(tag_decl);
-                }
-                else if (const clang::TypedefType *typedef_type = llvm::dyn_cast<clang::TypedefType>(qual_type.getTypePtr()))
-                {
-                    clang::TypedefNameDecl *typedef_decl = typedef_type->getDecl();
-                    results->push_back(typedef_decl); 
-                }
-            }
-        }
-    }
-}
-
-void
-SymbolFileDWARF::FindExternalVisibleDeclsByName (void *baton,
-                                                 const clang::DeclContext *decl_context,
-                                                 clang::DeclarationName decl_name,
-                                                 llvm::SmallVectorImpl <clang::NamedDecl *> *results)
-{
-    
-    switch (decl_context->getDeclKind())
-    {
-    case clang::Decl::Namespace:
-    case clang::Decl::TranslationUnit:
-        {
-            SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton;
-            symbol_file_dwarf->SearchDeclContext (decl_context, decl_name.getAsString().c_str(), results);
-        }
-        break;
-    default:
-        break;
-    }
-}
-
-bool
-SymbolFileDWARF::LayoutRecordType(void *baton, const clang::RecordDecl *record_decl, uint64_t &size,
-                                  uint64_t &alignment,
-                                  llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
-                                  llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
-                                  llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets)
-{
-    SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton;
-    return symbol_file_dwarf->LayoutRecordType (record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets);
-}
-
-bool
-SymbolFileDWARF::LayoutRecordType(const clang::RecordDecl *record_decl, uint64_t &bit_size, uint64_t &alignment,
-                                  llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
-                                  llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
-                                  llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets)
-{
-    Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
-    RecordDeclToLayoutMap::iterator pos = m_record_decl_to_layout_map.find (record_decl);
-    bool success = false;
-    base_offsets.clear();
-    vbase_offsets.clear();
-    if (pos != m_record_decl_to_layout_map.end())
-    {
-        bit_size = pos->second.bit_size;
-        alignment = pos->second.alignment;
-        field_offsets.swap(pos->second.field_offsets);
-        base_offsets.swap (pos->second.base_offsets);
-        vbase_offsets.swap (pos->second.vbase_offsets);
-        m_record_decl_to_layout_map.erase(pos);
-        success = true;
-    }
-    else
-    {
-        bit_size = 0;
-        alignment = 0;
-        field_offsets.clear();
-    }
-    
-    if (log)
-        GetObjectFile()->GetModule()->LogMessage (log, 
-                                                  "SymbolFileDWARF::LayoutRecordType (record_decl = %p, bit_size = %" PRIu64 ", alignment = %" PRIu64 ", field_offsets[%u],base_offsets[%u], vbase_offsets[%u]) success = %i",
-                                                  static_cast<const void*>(record_decl),
-                                                  bit_size, alignment,
-                                                  static_cast<uint32_t>(field_offsets.size()),
-                                                  static_cast<uint32_t>(base_offsets.size()),
-                                                  static_cast<uint32_t>(vbase_offsets.size()),
-                                                  success);
-    return success;
+    s.Printf("\nNamespaces:\n");            m_namespace_index.Dump (&s);
 }
 
 
@@ -8142,4 +4554,8 @@ SymbolFileDWARF::GetDebugMapSymfile ()
     return m_debug_map_symfile;
 }
 
-
+DWARFExpression::LocationListFormat
+SymbolFileDWARF::GetLocationListFormat() const
+{
+    return DWARFExpression::RegularLocationList;
+}
diff --git a/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
index 2f0b3f05b153e..c2e78a417b7ac 100644
--- a/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
+++ b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
@@ -14,24 +14,22 @@
 // C++ Includes
 #include <list>
 #include <map>
+#include <mutex>
 #include <set>
+#include <unordered_map>
 #include <vector>
 
 // Other libraries and framework includes
-#include "clang/AST/CharUnits.h"
-#include "clang/AST/ExternalASTSource.h"
 #include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/SmallPtrSet.h"
-#include "llvm/ADT/SmallVector.h"
 
 #include "lldb/lldb-private.h"
-#include "lldb/Core/ClangForward.h"
 #include "lldb/Core/ConstString.h"
 #include "lldb/Core/dwarf.h"
 #include "lldb/Core/Flags.h"
 #include "lldb/Core/RangeMap.h"
 #include "lldb/Core/UniqueCStringMap.h"
-#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Expression/DWARFExpression.h"
+#include "lldb/Symbol/DebugMacros.h"
 #include "lldb/Symbol/SymbolFile.h"
 #include "lldb/Symbol/SymbolContext.h"
 
@@ -61,12 +59,18 @@ class DWARFDIECollection;
 class DWARFFormValue;
 class SymbolFileDWARFDebugMap;
 
+#define DIE_IS_BEING_PARSED ((lldb_private::Type*)1)
+
 class SymbolFileDWARF : public lldb_private::SymbolFile, public lldb_private::UserID
 {
 public:
     friend class SymbolFileDWARFDebugMap;
+    friend class SymbolFileDWARFDwo;
     friend class DebugMapModule;
     friend class DWARFCompileUnit;
+    friend class DWARFASTParserClang;
+    friend class DWARFASTParserGo;
+
     //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
@@ -76,6 +80,9 @@ public:
     static void
     Terminate();
 
+    static void
+    DebuggerInitialize(lldb_private::Debugger &debugger);
+
     static lldb_private::ConstString
     GetPluginNameStatic();
 
@@ -84,481 +91,419 @@ public:
 
     static lldb_private::SymbolFile*
     CreateInstance (lldb_private::ObjectFile* obj_file);
+
     //------------------------------------------------------------------
     // Constructors and Destructors
     //------------------------------------------------------------------
-                            SymbolFileDWARF(lldb_private::ObjectFile* ofile);
-    virtual                 ~SymbolFileDWARF();
 
-    virtual uint32_t        CalculateAbilities ();
-    virtual void            InitializeObject();
+    SymbolFileDWARF(lldb_private::ObjectFile* ofile);
+
+    ~SymbolFileDWARF() override;
+
+    uint32_t
+    CalculateAbilities () override;
+
+    void
+    InitializeObject() override;
 
     //------------------------------------------------------------------
     // Compile Unit function calls
     //------------------------------------------------------------------
-    virtual uint32_t        GetNumCompileUnits();
-    virtual lldb::CompUnitSP ParseCompileUnitAtIndex(uint32_t index);
-
-    virtual lldb::LanguageType ParseCompileUnitLanguage (const lldb_private::SymbolContext& sc);
-    virtual size_t          ParseCompileUnitFunctions (const lldb_private::SymbolContext& sc);
-    virtual bool            ParseCompileUnitLineTable (const lldb_private::SymbolContext& sc);
-    virtual bool            ParseCompileUnitSupportFiles (const lldb_private::SymbolContext& sc, lldb_private::FileSpecList& support_files);
-    virtual bool            ParseImportedModules (const lldb_private::SymbolContext &sc, std::vector<lldb_private::ConstString> &imported_modules);
-    virtual size_t          ParseFunctionBlocks (const lldb_private::SymbolContext& sc);
-    virtual size_t          ParseTypes (const lldb_private::SymbolContext& sc);
-    virtual size_t          ParseVariablesForContext (const lldb_private::SymbolContext& sc);
-
-    virtual lldb_private::Type* ResolveTypeUID(lldb::user_id_t type_uid);
-    virtual bool            ResolveClangOpaqueTypeDefinition (lldb_private::ClangASTType& clang_type);
-
-    virtual lldb_private::Type* ResolveType (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* type_die, bool assert_not_being_parsed = true);
-    virtual clang::DeclContext* GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid);
-    virtual clang::DeclContext* GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid);
-
-    virtual uint32_t        ResolveSymbolContext (const lldb_private::Address& so_addr, uint32_t resolve_scope, lldb_private::SymbolContext& sc);
-    virtual uint32_t        ResolveSymbolContext (const lldb_private::FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, lldb_private::SymbolContextList& sc_list);
-    virtual uint32_t        FindGlobalVariables(const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, lldb_private::VariableList& variables);
-    virtual uint32_t        FindGlobalVariables(const lldb_private::RegularExpression& regex, bool append, uint32_t max_matches, lldb_private::VariableList& variables);
-    virtual uint32_t        FindFunctions(const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, uint32_t name_type_mask, bool include_inlines, bool append, lldb_private::SymbolContextList& sc_list);
-    virtual uint32_t        FindFunctions(const lldb_private::RegularExpression& regex, bool include_inlines, bool append, lldb_private::SymbolContextList& sc_list);
-    virtual uint32_t        FindTypes (const lldb_private::SymbolContext& sc, const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, lldb_private::TypeList& types);
-    virtual lldb_private::TypeList *
-                            GetTypeList ();
-    virtual size_t          GetTypes (lldb_private::SymbolContextScope *sc_scope,
-                                      uint32_t type_mask,
-                                      lldb_private::TypeList &type_list);
-
-    virtual lldb_private::ClangASTContext &
-                            GetClangASTContext ();
-
-    virtual lldb_private::ClangNamespaceDecl
-            FindNamespace (const lldb_private::SymbolContext& sc, 
-                           const lldb_private::ConstString &name, 
-                           const lldb_private::ClangNamespaceDecl *parent_namespace_decl);
 
+    uint32_t
+    GetNumCompileUnits() override;
 
-    //------------------------------------------------------------------
-    // ClangASTContext callbacks for external source lookups.
-    //------------------------------------------------------------------
-    static void
-    CompleteTagDecl (void *baton, clang::TagDecl *);
-    
-    static void
-    CompleteObjCInterfaceDecl (void *baton, clang::ObjCInterfaceDecl *);
+    lldb::CompUnitSP
+    ParseCompileUnitAtIndex(uint32_t index) override;
+
+    lldb::LanguageType
+    ParseCompileUnitLanguage (const lldb_private::SymbolContext& sc) override;
+
+    size_t
+    ParseCompileUnitFunctions (const lldb_private::SymbolContext& sc) override;
+
+    bool
+    ParseCompileUnitLineTable (const lldb_private::SymbolContext& sc) override;
+
+    bool
+    ParseCompileUnitDebugMacros (const lldb_private::SymbolContext& sc) override;
+
+    bool
+    ParseCompileUnitSupportFiles (const lldb_private::SymbolContext& sc,
+                                  lldb_private::FileSpecList& support_files) override;
+
+    bool
+    ParseImportedModules (const lldb_private::SymbolContext &sc,
+                          std::vector<lldb_private::ConstString> &imported_modules) override;
+
+    size_t
+    ParseFunctionBlocks (const lldb_private::SymbolContext& sc) override;
+
+    size_t
+    ParseTypes (const lldb_private::SymbolContext& sc) override;
+
+    size_t
+    ParseVariablesForContext (const lldb_private::SymbolContext& sc) override;
+
+    lldb_private::Type *
+    ResolveTypeUID(lldb::user_id_t type_uid) override;
+
+    bool
+    CompleteType (lldb_private::CompilerType& compiler_type) override;
+
+    lldb_private::Type *
+    ResolveType (const DWARFDIE &die,
+                 bool assert_not_being_parsed = true,
+                 bool resolve_function_context = false);
+
+    lldb_private::CompilerDecl
+    GetDeclForUID (lldb::user_id_t uid) override;
+
+    lldb_private::CompilerDeclContext
+    GetDeclContextForUID (lldb::user_id_t uid) override;
+
+    lldb_private::CompilerDeclContext
+    GetDeclContextContainingUID (lldb::user_id_t uid) override;
+
+    void
+    ParseDeclsForContext (lldb_private::CompilerDeclContext decl_ctx) override;
     
-    static void
-    FindExternalVisibleDeclsByName (void *baton,
-                                    const clang::DeclContext *DC,
-                                    clang::DeclarationName Name,
-                                    llvm::SmallVectorImpl <clang::NamedDecl *> *results);
-
-    static bool LayoutRecordType(void *baton, const clang::RecordDecl *record_decl, uint64_t &size, uint64_t &alignment,
-                                 llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
-                                 llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
-                                 llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets);
-
-    bool LayoutRecordType(const clang::RecordDecl *record_decl, uint64_t &size, uint64_t &alignment,
-                          llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
-                          llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
-                          llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets);
-
-    struct LayoutInfo
-    {
-        LayoutInfo () :
-            bit_size(0),
-            alignment(0),
-            field_offsets(),
-            base_offsets(),
-            vbase_offsets()
-        {
-        }
-        uint64_t bit_size;
-        uint64_t alignment;
-        llvm::DenseMap<const clang::FieldDecl *, uint64_t> field_offsets;
-        llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> base_offsets;
-        llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> vbase_offsets;
-    };
+
+    uint32_t
+    ResolveSymbolContext (const lldb_private::Address& so_addr,
+                          uint32_t resolve_scope,
+                          lldb_private::SymbolContext& sc) override;
+
+    uint32_t
+    ResolveSymbolContext (const lldb_private::FileSpec& file_spec,
+                          uint32_t line,
+                          bool check_inlines,
+                          uint32_t resolve_scope,
+                          lldb_private::SymbolContextList& sc_list) override;
+
+    uint32_t
+    FindGlobalVariables (const lldb_private::ConstString &name,
+                         const lldb_private::CompilerDeclContext *parent_decl_ctx,
+                         bool append,
+                         uint32_t max_matches,
+                         lldb_private::VariableList& variables) override;
+
+    uint32_t
+    FindGlobalVariables (const lldb_private::RegularExpression& regex,
+                         bool append,
+                         uint32_t max_matches,
+                         lldb_private::VariableList& variables) override;
+
+    uint32_t
+    FindFunctions (const lldb_private::ConstString &name,
+                   const lldb_private::CompilerDeclContext *parent_decl_ctx,
+                   uint32_t name_type_mask,
+                   bool include_inlines,
+                   bool append,
+                   lldb_private::SymbolContextList& sc_list) override;
+
+    uint32_t
+    FindFunctions (const lldb_private::RegularExpression& regex,
+                   bool include_inlines,
+                   bool append,
+                   lldb_private::SymbolContextList& sc_list) override;
+
+    uint32_t
+    FindTypes (const lldb_private::SymbolContext& sc,
+               const lldb_private::ConstString &name,
+               const lldb_private::CompilerDeclContext *parent_decl_ctx,
+               bool append,
+               uint32_t max_matches,
+               lldb_private::TypeMap& types) override;
+
+    size_t
+    FindTypes (const std::vector<lldb_private::CompilerContext> &context,
+               bool append,
+               lldb_private::TypeMap& types) override;
+
+    lldb_private::TypeList *
+    GetTypeList () override;
+
+    size_t
+    GetTypes (lldb_private::SymbolContextScope *sc_scope,
+              uint32_t type_mask,
+              lldb_private::TypeList &type_list) override;
+
+    lldb_private::TypeSystem *
+    GetTypeSystemForLanguage (lldb::LanguageType language) override;
+
+    lldb_private::CompilerDeclContext
+    FindNamespace (const lldb_private::SymbolContext& sc,
+                   const lldb_private::ConstString &name,
+                   const lldb_private::CompilerDeclContext *parent_decl_ctx) override;
+
+
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
-
-    virtual uint32_t
-    GetPluginVersion();
+    lldb_private::ConstString
+    GetPluginName() override;
 
-    // Approach 2 - count + accessor
-    // Index compile units would scan the initial compile units and register
-    // them with the module. This would only be done on demand if and only if
-    // the compile units were needed.
-    //virtual size_t        GetCompUnitCount() = 0;
-    //virtual CompUnitSP    GetCompUnitAtIndex(size_t cu_idx) = 0;
+    uint32_t
+    GetPluginVersion() override;
 
     const lldb_private::DWARFDataExtractor&     get_debug_abbrev_data ();
+    const lldb_private::DWARFDataExtractor&     get_debug_addr_data ();
     const lldb_private::DWARFDataExtractor&     get_debug_aranges_data ();
     const lldb_private::DWARFDataExtractor&     get_debug_frame_data ();
     const lldb_private::DWARFDataExtractor&     get_debug_info_data ();
     const lldb_private::DWARFDataExtractor&     get_debug_line_data ();
+    const lldb_private::DWARFDataExtractor&     get_debug_macro_data ();
     const lldb_private::DWARFDataExtractor&     get_debug_loc_data ();
     const lldb_private::DWARFDataExtractor&     get_debug_ranges_data ();
     const lldb_private::DWARFDataExtractor&     get_debug_str_data ();
+    const lldb_private::DWARFDataExtractor&     get_debug_str_offsets_data ();
     const lldb_private::DWARFDataExtractor&     get_apple_names_data ();
     const lldb_private::DWARFDataExtractor&     get_apple_types_data ();
     const lldb_private::DWARFDataExtractor&     get_apple_namespaces_data ();
     const lldb_private::DWARFDataExtractor&     get_apple_objc_data ();
 
 
-    DWARFDebugAbbrev*       DebugAbbrev();
-    const DWARFDebugAbbrev* DebugAbbrev() const;
+    DWARFDebugAbbrev*
+    DebugAbbrev();
 
-    DWARFDebugInfo*         DebugInfo();
-    const DWARFDebugInfo*   DebugInfo() const;
+    const DWARFDebugAbbrev*
+    DebugAbbrev() const;
 
-    DWARFDebugRanges*       DebugRanges();
-    const DWARFDebugRanges* DebugRanges() const;
+    DWARFDebugInfo*
+    DebugInfo();
 
-    const lldb_private::DWARFDataExtractor&
-    GetCachedSectionData (uint32_t got_flag, 
-                          lldb::SectionType sect_type, 
-                          lldb_private::DWARFDataExtractor &data);
+    const DWARFDebugInfo*
+    DebugInfo() const;
+
+    DWARFDebugRanges*
+    DebugRanges();
+
+    const DWARFDebugRanges*
+    DebugRanges() const;
 
     static bool
     SupportedVersion(uint16_t version);
 
-    clang::DeclContext *
-    GetCachedClangDeclContextForDIE (const DWARFDebugInfoEntry *die)
-    {
-        DIEToDeclContextMap::iterator pos = m_die_to_decl_ctx.find(die);
-        if (pos != m_die_to_decl_ctx.end())
-            return pos->second;
-        else
-            return NULL;
-    }
+    DWARFDIE
+    GetDeclContextDIEContainingDIE (const DWARFDIE &die);
 
-    clang::DeclContext *
-    GetClangDeclContextForDIE (const lldb_private::SymbolContext &sc, DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die);
-    
-    clang::DeclContext *
-    GetClangDeclContextForDIEOffset (const lldb_private::SymbolContext &sc, dw_offset_t die_offset);
-    
-    clang::DeclContext *
-    GetClangDeclContextContainingDIE (DWARFCompileUnit *cu, 
-                                      const DWARFDebugInfoEntry *die,
-                                      const DWARFDebugInfoEntry **decl_ctx_die);
-
-    clang::DeclContext *
-    GetClangDeclContextContainingDIEOffset (dw_offset_t die_offset);
+    bool
+    HasForwardDeclForClangType (const lldb_private::CompilerType &compiler_type);
 
-    const DWARFDebugInfoEntry *
-    GetDeclContextDIEContainingDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die);
+    lldb_private::CompileUnit*
+    GetCompUnitForDWARFCompUnit(DWARFCompileUnit* dwarf_cu,
+                                uint32_t cu_idx = UINT32_MAX);
 
-    void
-    SearchDeclContext (const clang::DeclContext *decl_context, 
-                       const char *name, 
-                       llvm::SmallVectorImpl <clang::NamedDecl *> *results);
-    
-    lldb_private::Flags&
-    GetFlags ()
+    lldb::user_id_t
+    MakeUserID (dw_offset_t die_offset) const
     {
-        return m_flags;
+        return GetID() | die_offset;
     }
 
-    const lldb_private::Flags&
-    GetFlags () const
-    {
-        return m_flags;
-    }
+    size_t
+    GetObjCMethodDIEOffsets (lldb_private::ConstString class_name,
+                             DIEArray &method_die_offsets);
 
     bool
-    HasForwardDeclForClangType (const lldb_private::ClangASTType &clang_type);
+    Supports_DW_AT_APPLE_objc_complete_type (DWARFCompileUnit *cu);
+
+    lldb_private::DebugMacrosSP
+    ParseDebugMacros(lldb::offset_t *offset);
+
+    static DWARFDIE
+    GetParentSymbolContextDIE(const DWARFDIE &die);
+
+    virtual lldb::CompUnitSP
+    ParseCompileUnit (DWARFCompileUnit* dwarf_cu, uint32_t cu_idx);
+
+    virtual lldb_private::DWARFExpression::LocationListFormat
+    GetLocationListFormat() const;
+
+    lldb::ModuleSP
+    GetDWOModule (lldb_private::ConstString name);
 
 protected:
+    typedef llvm::DenseMap<const DWARFDebugInfoEntry *, lldb_private::Type *> DIEToTypePtr;
+    typedef llvm::DenseMap<const DWARFDebugInfoEntry *, lldb::VariableSP> DIEToVariableSP;
+    typedef llvm::DenseMap<const DWARFDebugInfoEntry *, lldb::opaque_compiler_type_t> DIEToClangType;
+    typedef llvm::DenseMap<lldb::opaque_compiler_type_t, DIERef> ClangTypeToDIE;
 
-    enum
+    struct DWARFDataSegment
     {
-        flagsGotDebugAbbrevData     = (1 << 0),
-        flagsGotDebugArangesData    = (1 << 1),
-        flagsGotDebugFrameData      = (1 << 2),
-        flagsGotDebugInfoData       = (1 << 3),
-        flagsGotDebugLineData       = (1 << 4),
-        flagsGotDebugLocData        = (1 << 5),
-        flagsGotDebugMacInfoData    = (1 << 6),
-        flagsGotDebugPubNamesData   = (1 << 7),
-        flagsGotDebugPubTypesData   = (1 << 8),
-        flagsGotDebugRangesData     = (1 << 9),
-        flagsGotDebugStrData        = (1 << 10),
-        flagsGotAppleNamesData      = (1 << 11),
-        flagsGotAppleTypesData      = (1 << 12),
-        flagsGotAppleNamespacesData = (1 << 13),
-        flagsGotAppleObjCData       = (1 << 14)
+        std::once_flag                   m_flag;
+        lldb_private::DWARFDataExtractor m_data;
     };
-    
-    bool                    NamespaceDeclMatchesThisSymbolFile (const lldb_private::ClangNamespaceDecl *namespace_decl);
-
-    bool                    DIEIsInNamespace (const lldb_private::ClangNamespaceDecl *namespace_decl, 
-                                              DWARFCompileUnit* dwarf_cu, 
-                                              const DWARFDebugInfoEntry* die);
 
     DISALLOW_COPY_AND_ASSIGN (SymbolFileDWARF);
-    lldb::CompUnitSP        ParseCompileUnit (DWARFCompileUnit* dwarf_cu, uint32_t cu_idx);
-    DWARFCompileUnit*       GetDWARFCompileUnit(lldb_private::CompileUnit *comp_unit);
-    DWARFCompileUnit*       GetNextUnparsedDWARFCompileUnit(DWARFCompileUnit* prev_cu);
-    lldb_private::CompileUnit*      GetCompUnitForDWARFCompUnit(DWARFCompileUnit* dwarf_cu, uint32_t cu_idx = UINT32_MAX);
-    bool                    GetFunction (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* func_die, lldb_private::SymbolContext& sc);
-    lldb_private::Function *        ParseCompileUnitFunction (const lldb_private::SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die);
-    size_t                  ParseFunctionBlocks (const lldb_private::SymbolContext& sc,
-                                                 lldb_private::Block *parent_block,
-                                                 DWARFCompileUnit* dwarf_cu,
-                                                 const DWARFDebugInfoEntry *die,
-                                                 lldb::addr_t subprogram_low_pc,
-                                                 uint32_t depth);
-    size_t                  ParseTypes (const lldb_private::SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die, bool parse_siblings, bool parse_children);
-    lldb::TypeSP            ParseType (const lldb_private::SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die, bool *type_is_new);
-    lldb_private::Type*     ResolveTypeUID (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* die, bool assert_not_being_parsed);
-
-    lldb::VariableSP        ParseVariableDIE(
-                                const lldb_private::SymbolContext& sc,
-                                DWARFCompileUnit* dwarf_cu,
-                                const DWARFDebugInfoEntry *die,
-                                const lldb::addr_t func_low_pc);
-
-    size_t                  ParseVariables(
-                                const lldb_private::SymbolContext& sc,
-                                DWARFCompileUnit* dwarf_cu,
-                                const lldb::addr_t func_low_pc,
-                                const DWARFDebugInfoEntry *die,
-                                bool parse_siblings,
-                                bool parse_children,
-                                lldb_private::VariableList* cc_variable_list = NULL);
-
-    class DelayedAddObjCClassProperty;
-    typedef std::vector <DelayedAddObjCClassProperty> DelayedPropertyList;
-    
-    bool                    ClassOrStructIsVirtual (
-                                DWARFCompileUnit* dwarf_cu,
-                                const DWARFDebugInfoEntry *parent_die);
-
-    size_t                  ParseChildMembers(
-                                const lldb_private::SymbolContext& sc,
-                                DWARFCompileUnit* dwarf_cu,
-                                const DWARFDebugInfoEntry *die,
-                                lldb_private::ClangASTType &class_clang_type,
-                                const lldb::LanguageType class_language,
-                                std::vector<clang::CXXBaseSpecifier *>& base_classes,
-                                std::vector<int>& member_accessibilities,
-                                DWARFDIECollection& member_function_dies,
-                                DelayedPropertyList& delayed_properties,
-                                lldb::AccessType &default_accessibility,
-                                bool &is_a_class,
-                                LayoutInfo &layout_info);
-
-    size_t                  ParseChildParameters(
-                                const lldb_private::SymbolContext& sc,
-                                clang::DeclContext *containing_decl_ctx,
-                                DWARFCompileUnit* dwarf_cu,
-                                const DWARFDebugInfoEntry *parent_die,
-                                bool skip_artificial,
-                                bool &is_static,
-                                bool &is_variadic,
-                                std::vector<lldb_private::ClangASTType>& function_args,
-                                std::vector<clang::ParmVarDecl*>& function_param_decls,
-                                unsigned &type_quals);
-                                // lldb_private::ClangASTContext::TemplateParameterInfos &template_param_infos); // not currently needed
-    
-    
-    size_t                  ParseChildEnumerators(
-                                const lldb_private::SymbolContext& sc,
-                                lldb_private::ClangASTType &clang_type,
-                                bool is_signed,
-                                uint32_t enumerator_byte_size,
-                                DWARFCompileUnit* dwarf_cu,
-                                const DWARFDebugInfoEntry *enum_die);
-
-    void                    ParseChildArrayInfo(
-                                const lldb_private::SymbolContext& sc,
-                                DWARFCompileUnit* dwarf_cu,
-                                const DWARFDebugInfoEntry *parent_die,
-                                int64_t& first_index,
-                                std::vector<uint64_t>& element_orders,
-                                uint32_t& byte_stride,
-                                uint32_t& bit_stride);
-
-                            // Given a die_offset, figure out the symbol context representing that die.
-    bool                    ResolveFunction (dw_offset_t offset,
-                                             DWARFCompileUnit *&dwarf_cu,
-                                             bool include_inlines,
-                                             lldb_private::SymbolContextList& sc_list);
-                            
-    bool                    ResolveFunction (DWARFCompileUnit *cu,
-                                             const DWARFDebugInfoEntry *die,
-                                             bool include_inlines,
-                                             lldb_private::SymbolContextList& sc_list);
-
-    bool                    FunctionDieMatchesPartialName (
-                                const DWARFDebugInfoEntry* die,
-                                const DWARFCompileUnit *dwarf_cu,
-                                uint32_t name_type_mask,
-                                const char *partial_name,
-                                const char *base_name_start,
-                                const char *base_name_end);
-
-    void                    FindFunctions(
-                                const lldb_private::ConstString &name, 
-                                const NameToDIE &name_to_die,
-                                bool include_inlines,
-                                lldb_private::SymbolContextList& sc_list);
-
-    void                    FindFunctions (
-                                const lldb_private::RegularExpression &regex, 
-                                const NameToDIE &name_to_die,
-                                bool include_inlines,
-                                lldb_private::SymbolContextList& sc_list);
-
-    void                    FindFunctions (
-                                const lldb_private::RegularExpression &regex, 
-                                const DWARFMappedHash::MemoryTable &memory_table,
-                                bool include_inlines,
-                                lldb_private::SymbolContextList& sc_list);
-
-    lldb::TypeSP            FindDefinitionTypeForDWARFDeclContext (
-                                const DWARFDeclContext &die_decl_ctx);
-
-    lldb::TypeSP            FindCompleteObjCDefinitionTypeForDIE (
-                                const DWARFDebugInfoEntry *die, 
-                                const lldb_private::ConstString &type_name,
-                                bool must_be_implementation);
-
-    bool                    Supports_DW_AT_APPLE_objc_complete_type (DWARFCompileUnit *cu);
-
-    lldb::TypeSP            FindCompleteObjCDefinitionType (const lldb_private::ConstString &type_name,
-                                                            bool header_definition_ok);
-
-    lldb_private::Symbol *  GetObjCClassSymbol (const lldb_private::ConstString &objc_class_name);
-
-    void                    ParseFunctions (const DIEArray &die_offsets,
-                                            bool include_inlines,
-                                            lldb_private::SymbolContextList& sc_list);
-    lldb::TypeSP            GetTypeForDIE (DWARFCompileUnit *cu, 
-                                           const DWARFDebugInfoEntry* die);
-
-    uint32_t                FindTypes(std::vector<dw_offset_t> die_offsets, uint32_t max_matches, lldb_private::TypeList& types);
-
-    void                    Index();
-    
-    void                    DumpIndexes();
 
-    void                    SetDebugMapModule (const lldb::ModuleSP &module_sp)
-                            {
-                                m_debug_map_module_wp = module_sp;
-                            }
+    const lldb_private::DWARFDataExtractor&
+    GetCachedSectionData (lldb::SectionType sect_type, DWARFDataSegment& data_segment);
+
+    virtual void
+    LoadSectionData (lldb::SectionType sect_type, lldb_private::DWARFDataExtractor& data);
+
+    bool
+    DeclContextMatchesThisSymbolFile (const lldb_private::CompilerDeclContext *decl_ctx);
+
+    bool
+    DIEInDeclContext (const lldb_private::CompilerDeclContext *parent_decl_ctx,
+                      const DWARFDIE &die);
+
+    virtual DWARFCompileUnit*
+    GetDWARFCompileUnit (lldb_private::CompileUnit *comp_unit);
+
+    DWARFCompileUnit*
+    GetNextUnparsedDWARFCompileUnit (DWARFCompileUnit* prev_cu);
+
+    bool
+    GetFunction (const DWARFDIE &die,
+                 lldb_private::SymbolContext& sc);
+
+    lldb_private::Function *
+    ParseCompileUnitFunction (const lldb_private::SymbolContext& sc,
+                              const DWARFDIE &die);
+
+    size_t
+    ParseFunctionBlocks (const lldb_private::SymbolContext& sc,
+                         lldb_private::Block *parent_block,
+                         const DWARFDIE &die,
+                         lldb::addr_t subprogram_low_pc,
+                         uint32_t depth);
+
+    size_t
+    ParseTypes (const lldb_private::SymbolContext& sc,
+                const DWARFDIE &die,
+                bool parse_siblings,
+                bool parse_children);
+
+    lldb::TypeSP
+    ParseType (const lldb_private::SymbolContext& sc,
+               const DWARFDIE &die,
+               bool *type_is_new);
+
+    lldb_private::Type *
+    ResolveTypeUID (const DWARFDIE &die,
+                    bool assert_not_being_parsed);
+
+    lldb::VariableSP
+    ParseVariableDIE(const lldb_private::SymbolContext& sc,
+                     const DWARFDIE &die,
+                     const lldb::addr_t func_low_pc);
+
+    size_t
+    ParseVariables (const lldb_private::SymbolContext& sc,
+                    const DWARFDIE &orig_die,
+                    const lldb::addr_t func_low_pc,
+                    bool parse_siblings,
+                    bool parse_children,
+                    lldb_private::VariableList* cc_variable_list = NULL);
+
+    bool
+    ClassOrStructIsVirtual (const DWARFDIE &die);
+
+    // Given a die_offset, figure out the symbol context representing that die.
+    bool
+    ResolveFunction (const DIERef& die_ref,
+                     bool include_inlines,
+                     lldb_private::SymbolContextList& sc_list);
+
+    bool
+    ResolveFunction (const DWARFDIE &die,
+                     bool include_inlines,
+                     lldb_private::SymbolContextList& sc_list);
+
+    void
+    FindFunctions(const lldb_private::ConstString &name,
+                  const NameToDIE &name_to_die,
+                  bool include_inlines,
+                  lldb_private::SymbolContextList& sc_list);
+
+    void
+    FindFunctions (const lldb_private::RegularExpression &regex,
+                   const NameToDIE &name_to_die,
+                   bool include_inlines,
+                   lldb_private::SymbolContextList& sc_list);
+
+    void
+    FindFunctions (const lldb_private::RegularExpression &regex,
+                   const DWARFMappedHash::MemoryTable &memory_table,
+                   bool include_inlines,
+                   lldb_private::SymbolContextList& sc_list);
+
+    virtual lldb::TypeSP
+    FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &die_decl_ctx);
+
+    lldb::TypeSP
+    FindCompleteObjCDefinitionTypeForDIE (const DWARFDIE &die,
+                                          const lldb_private::ConstString &type_name,
+                                          bool must_be_implementation);
+
+    lldb::TypeSP
+    FindCompleteObjCDefinitionType (const lldb_private::ConstString &type_name,
+                                    bool header_definition_ok);
+
+    lldb_private::Symbol *
+    GetObjCClassSymbol (const lldb_private::ConstString &objc_class_name);
+
+    void
+    ParseFunctions (const DIEArray &die_offsets,
+                    bool include_inlines,
+                    lldb_private::SymbolContextList& sc_list);
+
+    lldb::TypeSP
+    GetTypeForDIE (const DWARFDIE &die, bool resolve_function_context = false);
+
+    void
+    Index();
     
-    SymbolFileDWARFDebugMap *
-                            GetDebugMapSymfile ();
+    void
+    DumpIndexes();
 
-    const DWARFDebugInfoEntry *
-                            FindBlockContainingSpecification (dw_offset_t func_die_offset, 
-                                                              dw_offset_t spec_block_die_offset,
-                                                              DWARFCompileUnit **dwarf_cu_handle);
+    void
+    SetDebugMapModule (const lldb::ModuleSP &module_sp)
+    {
+        m_debug_map_module_wp = module_sp;
+    }
+
+    SymbolFileDWARFDebugMap *
+    GetDebugMapSymfile ();
 
-    const DWARFDebugInfoEntry *
-                            FindBlockContainingSpecification (DWARFCompileUnit* dwarf_cu,
-                                                              const DWARFDebugInfoEntry *die,
-                                                              dw_offset_t spec_block_die_offset,
-                                                              DWARFCompileUnit **dwarf_cu_handle);
+    DWARFDIE
+    FindBlockContainingSpecification (const DIERef& func_die_ref, dw_offset_t spec_block_die_offset);
 
-    clang::NamespaceDecl *
-    ResolveNamespaceDIE (DWARFCompileUnit *curr_cu, const DWARFDebugInfoEntry *die);
+    DWARFDIE
+    FindBlockContainingSpecification (const DWARFDIE &die, dw_offset_t spec_block_die_offset);
     
-    UniqueDWARFASTTypeMap &
+    virtual UniqueDWARFASTTypeMap &
     GetUniqueDWARFASTTypeMap ();
-
-    void                    LinkDeclContextToDIE (clang::DeclContext *decl_ctx,
-                                                  const DWARFDebugInfoEntry *die)
-                            {
-                                m_die_to_decl_ctx[die] = decl_ctx;
-                                // There can be many DIEs for a single decl context
-                                m_decl_ctx_to_die[decl_ctx].insert(die);
-                            }
     
     bool
     UserIDMatches (lldb::user_id_t uid) const
     {
         const lldb::user_id_t high_uid = uid & 0xffffffff00000000ull;
-        if (high_uid)
+        if (high_uid != 0 && GetID() != 0)
             return high_uid == GetID();
         return true;
     }
     
-    lldb::user_id_t
-    MakeUserID (dw_offset_t die_offset) const
-    {
-        return GetID() | die_offset;
-    }
-
-    static bool
-    DeclKindIsCXXClass (clang::Decl::Kind decl_kind)
-    {
-        switch (decl_kind)
-        {
-            case clang::Decl::CXXRecord:
-            case clang::Decl::ClassTemplateSpecialization:
-                return true;
-            default:
-                break;
-        }
-        return false;
-    }
-    
-    bool
-    ParseTemplateParameterInfos (DWARFCompileUnit* dwarf_cu,
-                                 const DWARFDebugInfoEntry *parent_die,
-                                 lldb_private::ClangASTContext::TemplateParameterInfos &template_param_infos);
-
     bool
-    ParseTemplateDIE (DWARFCompileUnit* dwarf_cu,
-                      const DWARFDebugInfoEntry *die,
-                      lldb_private::ClangASTContext::TemplateParameterInfos &template_param_infos);
-
-    clang::ClassTemplateDecl *
-    ParseClassTemplateDecl (clang::DeclContext *decl_ctx,
-                            lldb::AccessType access_type,
-                            const char *parent_name,
-                            int tag_decl_kind,
-                            const lldb_private::ClangASTContext::TemplateParameterInfos &template_param_infos);
-
-    bool
-    DIEDeclContextsMatch (DWARFCompileUnit* cu1, const DWARFDebugInfoEntry *die1,
-                          DWARFCompileUnit* cu2, const DWARFDebugInfoEntry *die2);
+    DIEDeclContextsMatch (const DWARFDIE &die1,
+                          const DWARFDIE &die2);
     
     bool
-    ClassContainsSelector (DWARFCompileUnit *dwarf_cu,
-                           const DWARFDebugInfoEntry *class_die,
+    ClassContainsSelector (const DWARFDIE &class_die,
                            const lldb_private::ConstString &selector);
 
     bool
-    CopyUniqueClassMethodTypes (SymbolFileDWARF *class_symfile,
-                                lldb_private::Type *class_type,
-                                DWARFCompileUnit* src_cu,
-                                const DWARFDebugInfoEntry *src_class_die,
-                                DWARFCompileUnit* dst_cu,
-                                const DWARFDebugInfoEntry *dst_class_die,
-                                DWARFDIECollection &failures);
-
-    bool
     FixupAddress (lldb_private::Address &addr);
 
     typedef std::set<lldb_private::Type *> TypeSet;
     
-    typedef struct {
-        lldb_private::ConstString   m_name;
-        lldb::ModuleSP              m_module_sp;
-    } ClangModuleInfo;
-    
-    typedef std::map<uint64_t, ClangModuleInfo> ExternalTypeModuleMap;
+    typedef std::map<lldb_private::ConstString, lldb::ModuleSP> ExternalTypeModuleMap;
 
     void
-    GetTypes (DWARFCompileUnit* dwarf_cu,
-              const DWARFDebugInfoEntry *die,
+    GetTypes (const DWARFDIE &die,
               dw_offset_t min_die_offset,
               dw_offset_t max_die_offset,
               uint32_t type_mask,
@@ -572,23 +517,37 @@ protected:
     void
     UpdateExternalModuleListIfNeeded();
 
+    virtual DIEToTypePtr&
+    GetDIEToType() { return m_die_to_type; }
+
+    virtual DIEToVariableSP&
+    GetDIEToVariable() { return m_die_to_variable_sp; }
+    
+    virtual DIEToClangType&
+    GetForwardDeclDieToClangType() { return m_forward_decl_die_to_clang_type; }
+
+    virtual ClangTypeToDIE&
+    GetForwardDeclClangTypeToDie() { return m_forward_decl_clang_type_to_die; }
+
     lldb::ModuleWP                        m_debug_map_module_wp;
     SymbolFileDWARFDebugMap *             m_debug_map_symfile;
-    clang::TranslationUnitDecl *          m_clang_tu_decl;
-    lldb_private::Flags                   m_flags;
-    lldb_private::DWARFDataExtractor      m_dwarf_data; 
-    lldb_private::DWARFDataExtractor      m_data_debug_abbrev;
-    lldb_private::DWARFDataExtractor      m_data_debug_aranges;
-    lldb_private::DWARFDataExtractor      m_data_debug_frame;
-    lldb_private::DWARFDataExtractor      m_data_debug_info;
-    lldb_private::DWARFDataExtractor      m_data_debug_line;
-    lldb_private::DWARFDataExtractor      m_data_debug_loc;
-    lldb_private::DWARFDataExtractor      m_data_debug_ranges;
-    lldb_private::DWARFDataExtractor      m_data_debug_str;
-    lldb_private::DWARFDataExtractor      m_data_apple_names;
-    lldb_private::DWARFDataExtractor      m_data_apple_types;
-    lldb_private::DWARFDataExtractor      m_data_apple_namespaces;
-    lldb_private::DWARFDataExtractor      m_data_apple_objc;
+    lldb_private::DWARFDataExtractor      m_dwarf_data;
+
+    DWARFDataSegment                      m_data_debug_abbrev;
+    DWARFDataSegment                      m_data_debug_addr;
+    DWARFDataSegment                      m_data_debug_aranges;
+    DWARFDataSegment                      m_data_debug_frame;
+    DWARFDataSegment                      m_data_debug_info;
+    DWARFDataSegment                      m_data_debug_line;
+    DWARFDataSegment                      m_data_debug_macro;
+    DWARFDataSegment                      m_data_debug_loc;
+    DWARFDataSegment                      m_data_debug_ranges;
+    DWARFDataSegment                      m_data_debug_str;
+    DWARFDataSegment                      m_data_debug_str_offsets;
+    DWARFDataSegment                      m_data_apple_names;
+    DWARFDataSegment                      m_data_apple_types;
+    DWARFDataSegment                      m_data_apple_namespaces;
+    DWARFDataSegment                      m_data_apple_objc;
 
     // The unique pointer items below are generated on demand if and when someone accesses
     // them through a non const version of this class.
@@ -600,6 +559,10 @@ protected:
     std::unique_ptr<DWARFMappedHash::MemoryTable> m_apple_namespaces_ap;
     std::unique_ptr<DWARFMappedHash::MemoryTable> m_apple_objc_ap;
     std::unique_ptr<GlobalVariableMap>  m_global_aranges_ap;
+
+    typedef std::unordered_map<lldb::offset_t, lldb_private::DebugMacrosSP> DebugMacrosMap;
+    DebugMacrosMap m_debug_macros_map;
+
     ExternalTypeModuleMap               m_external_type_modules;
     NameToDIE                           m_function_basename_index;  // All concrete functions
     NameToDIE                           m_function_fullname_index;  // All concrete functions
@@ -610,28 +573,16 @@ protected:
     NameToDIE                           m_type_index;               // All type DIE offsets
     NameToDIE                           m_namespace_index;          // All type DIE offsets
     bool                                m_indexed:1,
-                                        m_is_external_ast_source:1,
                                         m_using_apple_tables:1,
                                         m_fetched_external_modules:1;
     lldb_private::LazyBool              m_supports_DW_AT_APPLE_objc_complete_type;
 
     std::unique_ptr<DWARFDebugRanges>     m_ranges;
     UniqueDWARFASTTypeMap m_unique_ast_type_map;
-    typedef llvm::SmallPtrSet<const DWARFDebugInfoEntry *, 4> DIEPointerSet;
-    typedef llvm::DenseMap<const DWARFDebugInfoEntry *, clang::DeclContext *> DIEToDeclContextMap;
-    typedef llvm::DenseMap<const clang::DeclContext *, DIEPointerSet> DeclContextToDIEMap;
-    typedef llvm::DenseMap<const DWARFDebugInfoEntry *, lldb_private::Type *> DIEToTypePtr;
-    typedef llvm::DenseMap<const DWARFDebugInfoEntry *, lldb::VariableSP> DIEToVariableSP;
-    typedef llvm::DenseMap<const DWARFDebugInfoEntry *, lldb::clang_type_t> DIEToClangType;
-    typedef llvm::DenseMap<lldb::clang_type_t, const DWARFDebugInfoEntry *> ClangTypeToDIE;
-    typedef llvm::DenseMap<const clang::RecordDecl *, LayoutInfo> RecordDeclToLayoutMap;
-    DIEToDeclContextMap m_die_to_decl_ctx;
-    DeclContextToDIEMap m_decl_ctx_to_die;
     DIEToTypePtr m_die_to_type;
     DIEToVariableSP m_die_to_variable_sp;
     DIEToClangType m_forward_decl_die_to_clang_type;
     ClangTypeToDIE m_forward_decl_clang_type_to_die;
-    RecordDeclToLayoutMap m_record_decl_to_layout_map;
 };
 
 #endif  // SymbolFileDWARF_SymbolFileDWARF_h_
diff --git a/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
index de972acd7ed7a..be25dfc99deea 100644
--- a/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
+++ b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
@@ -1,4 +1,4 @@
-//===-- SymbolFileDWARFDebugMap.cpp ----------------------------*- C++ -*-===//
+//===-- SymbolFileDWARFDebugMap.cpp -----------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,6 +7,10 @@
 //
 //===----------------------------------------------------------------------===//
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "SymbolFileDWARFDebugMap.h"
 
 #include "DWARFDebugAranges.h"
@@ -24,11 +28,11 @@
 #endif
 #include "lldb/Core/Timer.h"
 
-#include "lldb/Symbol/ClangExternalASTSourceCallbacks.h"
 #include "lldb/Symbol/CompileUnit.h"
 #include "lldb/Symbol/LineTable.h"
 #include "lldb/Symbol/ObjectFile.h"
 #include "lldb/Symbol/SymbolVendor.h"
+#include "lldb/Symbol/TypeMap.h"
 #include "lldb/Symbol/VariableList.h"
 
 #include "LogChannelDWARF.h"
@@ -41,9 +45,6 @@ using namespace lldb_private;
 // (so we can fixup the object file sections) and also for "Module::GetSymbolVendor()"
 // (so we can fixup the symbol file id.
 
-
-
-
 const SymbolFileDWARFDebugMap::FileRangeMap &
 SymbolFileDWARFDebugMap::CompileUnitInfo::GetFileRangeMap(SymbolFileDWARFDebugMap *exe_symfile)
 {
@@ -173,7 +174,6 @@ SymbolFileDWARFDebugMap::CompileUnitInfo::GetFileRangeMap(SymbolFileDWARFDebugMa
     return file_range_map;
 }
 
-
 class DebugMapModule : public Module
 {
 public:
@@ -190,14 +190,10 @@ public:
     {
     }
 
-    virtual
-    ~DebugMapModule ()
-    {
-    }
+    ~DebugMapModule() override = default;
 
-    
-    virtual SymbolVendor*
-    GetSymbolVendor(bool can_create = true, lldb_private::Stream *feedback_strm = NULL)
+    SymbolVendor*
+    GetSymbolVendor(bool can_create = true, lldb_private::Stream *feedback_strm = NULL) override
     {
         // Scope for locker
         if (m_symfile_ap.get() || can_create == false)
@@ -259,7 +255,6 @@ SymbolFileDWARFDebugMap::Terminate()
     PluginManager::UnregisterPlugin (CreateInstance);
 }
 
-
 lldb_private::ConstString
 SymbolFileDWARFDebugMap::GetPluginNameStatic()
 {
@@ -279,7 +274,6 @@ SymbolFileDWARFDebugMap::CreateInstance (ObjectFile* obj_file)
     return new SymbolFileDWARFDebugMap (obj_file);
 }
 
-
 SymbolFileDWARFDebugMap::SymbolFileDWARFDebugMap (ObjectFile* ofile) :
     SymbolFile(ofile),
     m_flags(),
@@ -290,7 +284,6 @@ SymbolFileDWARFDebugMap::SymbolFileDWARFDebugMap (ObjectFile* ofile) :
 {
 }
 
-
 SymbolFileDWARFDebugMap::~SymbolFileDWARFDebugMap()
 {
 }
@@ -298,15 +291,6 @@ SymbolFileDWARFDebugMap::~SymbolFileDWARFDebugMap()
 void
 SymbolFileDWARFDebugMap::InitializeObject()
 {
-    // Install our external AST source callbacks so we can complete Clang types.
-    llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> ast_source_ap (
-        new ClangExternalASTSourceCallbacks (SymbolFileDWARFDebugMap::CompleteTagDecl,
-                                             SymbolFileDWARFDebugMap::CompleteObjCInterfaceDecl,
-                                             NULL,
-                                             SymbolFileDWARFDebugMap::LayoutRecordType,
-                                             this));
-
-    GetClangASTContext().SetExternalSource (ast_source_ap);
 }
 
 void
@@ -517,7 +501,6 @@ SymbolFileDWARFDebugMap::GetModuleByCompUnitInfo (CompileUnitInfo *comp_unit_inf
     return NULL;
 }
 
-
 bool
 SymbolFileDWARFDebugMap::GetFileSpecForSO (uint32_t oso_idx, FileSpec &file_spec)
 {
@@ -532,8 +515,6 @@ SymbolFileDWARFDebugMap::GetFileSpecForSO (uint32_t oso_idx, FileSpec &file_spec
     return false;
 }
 
-
-
 ObjectFile *
 SymbolFileDWARFDebugMap::GetObjectFileByOSOIndex (uint32_t oso_idx)
 {
@@ -561,7 +542,6 @@ SymbolFileDWARFDebugMap::GetObjectFileByCompUnitInfo (CompileUnitInfo *comp_unit
     return NULL;
 }
 
-
 uint32_t
 SymbolFileDWARFDebugMap::GetCompUnitInfoIndex (const CompileUnitInfo *comp_unit_info)
 {
@@ -637,7 +617,6 @@ SymbolFileDWARFDebugMap::GetNumCompileUnits()
     return m_compile_unit_infos.size();
 }
 
-
 CompUnitSP
 SymbolFileDWARFDebugMap::ParseCompileUnitAtIndex(uint32_t cu_idx)
 {
@@ -660,7 +639,8 @@ SymbolFileDWARFDebugMap::ParseCompileUnitAtIndex(uint32_t cu_idx)
                                                                                     NULL,
                                                                                     so_file_spec,
                                                                                     cu_id,
-                                                                                    eLanguageTypeUnknown));
+                                                                                    eLanguageTypeUnknown,
+                                                                                    false));
             
                 if (m_compile_unit_infos[cu_idx].compile_unit_sp)
                 {
@@ -687,7 +667,6 @@ SymbolFileDWARFDebugMap::GetCompUnitInfo (const SymbolContext& sc)
     return NULL;
 }
 
-
 size_t
 SymbolFileDWARFDebugMap::GetCompUnitInfosForModule (const lldb_private::Module *module, std::vector<CompileUnitInfo *>& cu_infos)
 {
@@ -728,6 +707,15 @@ SymbolFileDWARFDebugMap::ParseCompileUnitLineTable (const SymbolContext& sc)
 }
 
 bool
+SymbolFileDWARFDebugMap::ParseCompileUnitDebugMacros (const SymbolContext& sc)
+{
+    SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc);
+    if (oso_dwarf)
+        return oso_dwarf->ParseCompileUnitDebugMacros (sc);
+    return false;
+}
+
+bool
 SymbolFileDWARFDebugMap::ParseCompileUnitSupportFiles (const SymbolContext& sc, FileSpecList &support_files)
 {
     SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc);
@@ -754,7 +742,6 @@ SymbolFileDWARFDebugMap::ParseFunctionBlocks (const SymbolContext& sc)
     return 0;
 }
 
-
 size_t
 SymbolFileDWARFDebugMap::ParseTypes (const SymbolContext& sc)
 {
@@ -764,7 +751,6 @@ SymbolFileDWARFDebugMap::ParseTypes (const SymbolContext& sc)
     return 0;
 }
 
-
 size_t
 SymbolFileDWARFDebugMap::ParseVariablesForContext (const SymbolContext& sc)
 {
@@ -774,8 +760,6 @@ SymbolFileDWARFDebugMap::ParseVariablesForContext (const SymbolContext& sc)
     return 0;
 }
 
-
-
 Type*
 SymbolFileDWARFDebugMap::ResolveTypeUID(lldb::user_id_t type_uid)
 {
@@ -787,10 +771,22 @@ SymbolFileDWARFDebugMap::ResolveTypeUID(lldb::user_id_t type_uid)
 }
 
 bool
-SymbolFileDWARFDebugMap::ResolveClangOpaqueTypeDefinition (ClangASTType& clang_type)
+SymbolFileDWARFDebugMap::CompleteType (CompilerType& compiler_type)
 {
-    // We have a struct/union/class/enum that needs to be fully resolved.
-    return false;
+    bool success = false;
+    if (compiler_type)
+    {
+        ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
+            if (oso_dwarf->HasForwardDeclForClangType (compiler_type))
+            {
+                oso_dwarf->CompleteType (compiler_type);
+                success = true;
+                return true;
+            }
+            return false;
+        });
+    }
+    return success;
 }
 
 uint32_t
@@ -834,7 +830,6 @@ SymbolFileDWARFDebugMap::ResolveSymbolContext (const Address& exe_so_addr, uint3
     return resolved_flags;
 }
 
-
 uint32_t
 SymbolFileDWARFDebugMap::ResolveSymbolContext (const FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list)
 {
@@ -871,7 +866,7 @@ uint32_t
 SymbolFileDWARFDebugMap::PrivateFindGlobalVariables
 (
     const ConstString &name,
-    const ClangNamespaceDecl *namespace_decl,
+    const CompilerDeclContext *parent_decl_ctx,
     const std::vector<uint32_t> &indexes,   // Indexes into the symbol table that match "name"
     uint32_t max_matches,
     VariableList& variables
@@ -888,7 +883,7 @@ SymbolFileDWARFDebugMap::PrivateFindGlobalVariables
             SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx);
             if (oso_dwarf)
             {
-                if (oso_dwarf->FindGlobalVariables(name, namespace_decl, true, max_matches, variables))
+                if (oso_dwarf->FindGlobalVariables(name, parent_decl_ctx, true, max_matches, variables))
                     if (variables.GetSize() > max_matches)
                         break;
             }
@@ -898,7 +893,11 @@ SymbolFileDWARFDebugMap::PrivateFindGlobalVariables
 }
 
 uint32_t
-SymbolFileDWARFDebugMap::FindGlobalVariables (const ConstString &name, const ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables)
+SymbolFileDWARFDebugMap::FindGlobalVariables (const ConstString &name,
+                                              const CompilerDeclContext *parent_decl_ctx,
+                                              bool append,
+                                              uint32_t max_matches,
+                                              VariableList& variables)
 {
 
     // If we aren't appending the results to this list, then clear the list
@@ -913,7 +912,7 @@ SymbolFileDWARFDebugMap::FindGlobalVariables (const ConstString &name, const Cla
     
     ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
         const uint32_t oso_matches = oso_dwarf->FindGlobalVariables (name,
-                                                                     namespace_decl,
+                                                                     parent_decl_ctx,
                                                                      true,
                                                                      max_matches,
                                                                      variables);
@@ -941,7 +940,6 @@ SymbolFileDWARFDebugMap::FindGlobalVariables (const ConstString &name, const Cla
     return variables.GetSize() - original_size;
 }
 
-
 uint32_t
 SymbolFileDWARFDebugMap::FindGlobalVariables (const RegularExpression& regex, bool append, uint32_t max_matches, VariableList& variables)
 {
@@ -983,7 +981,6 @@ SymbolFileDWARFDebugMap::FindGlobalVariables (const RegularExpression& regex, bo
     return variables.GetSize() - original_size;
 }
 
-
 int
 SymbolFileDWARFDebugMap::SymbolContainsSymbolWithIndex (uint32_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info)
 {
@@ -998,7 +995,6 @@ SymbolFileDWARFDebugMap::SymbolContainsSymbolWithIndex (uint32_t *symbol_idx_ptr
     return 1;
 }
 
-
 int
 SymbolFileDWARFDebugMap::SymbolContainsSymbolWithID (user_id_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info)
 {
@@ -1013,7 +1009,6 @@ SymbolFileDWARFDebugMap::SymbolContainsSymbolWithID (user_id_t *symbol_idx_ptr,
     return 1;
 }
 
-
 SymbolFileDWARFDebugMap::CompileUnitInfo*
 SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithIndex (uint32_t symbol_idx, uint32_t *oso_idx_ptr)
 {
@@ -1062,7 +1057,6 @@ SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithID (user_id_t symbol_id,
     return comp_unit_info;
 }
 
-
 static void
 RemoveFunctionsWithModuleNotEqualTo (const ModuleSP &module_sp, SymbolContextList &sc_list, uint32_t start_idx)
 {
@@ -1091,7 +1085,12 @@ RemoveFunctionsWithModuleNotEqualTo (const ModuleSP &module_sp, SymbolContextLis
 }
 
 uint32_t
-SymbolFileDWARFDebugMap::FindFunctions(const ConstString &name, const ClangNamespaceDecl *namespace_decl, uint32_t name_type_mask, bool include_inlines, bool append, SymbolContextList& sc_list)
+SymbolFileDWARFDebugMap::FindFunctions(const ConstString &name,
+                                       const CompilerDeclContext *parent_decl_ctx,
+                                       uint32_t name_type_mask,
+                                       bool include_inlines,
+                                       bool append,
+                                       SymbolContextList& sc_list)
 {
     Timer scoped_timer (__PRETTY_FUNCTION__,
                         "SymbolFileDWARFDebugMap::FindFunctions (name = %s)",
@@ -1105,7 +1104,7 @@ SymbolFileDWARFDebugMap::FindFunctions(const ConstString &name, const ClangNames
 
     ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
         uint32_t sc_idx = sc_list.GetSize();
-        if (oso_dwarf->FindFunctions(name, namespace_decl, name_type_mask, include_inlines, true, sc_list))
+        if (oso_dwarf->FindFunctions(name, parent_decl_ctx, name_type_mask, include_inlines, true, sc_list))
         {
             RemoveFunctionsWithModuleNotEqualTo (m_obj_file->GetModule(), sc_list, sc_idx);
         }
@@ -1115,7 +1114,6 @@ SymbolFileDWARFDebugMap::FindFunctions(const ConstString &name, const ClangNames
     return sc_list.GetSize() - initial_size;
 }
 
-
 uint32_t
 SymbolFileDWARFDebugMap::FindFunctions (const RegularExpression& regex, bool include_inlines, bool append, SymbolContextList& sc_list)
 {
@@ -1150,8 +1148,7 @@ SymbolFileDWARFDebugMap::GetTypes (SymbolContextScope *sc_scope,
     Timer scoped_timer (__PRETTY_FUNCTION__,
                         "SymbolFileDWARFDebugMap::GetTypes (type_mask = 0x%8.8x)",
                         type_mask);
-    
-    
+
     uint32_t initial_size = type_list.GetSize();
     SymbolFileDWARF *oso_dwarf = NULL;
     if (sc_scope)
@@ -1177,7 +1174,6 @@ SymbolFileDWARFDebugMap::GetTypes (SymbolContextScope *sc_scope,
     return type_list.GetSize() - initial_size;
 }
 
-
 TypeSP
 SymbolFileDWARFDebugMap::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &die_decl_ctx)
 {
@@ -1189,8 +1185,6 @@ SymbolFileDWARFDebugMap::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclC
     return type_sp;
 }
 
-
-
 bool
 SymbolFileDWARFDebugMap::Supports_DW_AT_APPLE_objc_complete_type (SymbolFileDWARF *skip_dwarf_oso)
 {
@@ -1210,7 +1204,7 @@ SymbolFileDWARFDebugMap::Supports_DW_AT_APPLE_objc_complete_type (SymbolFileDWAR
 }
 
 TypeSP
-SymbolFileDWARFDebugMap::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry *die, 
+SymbolFileDWARFDebugMap::FindCompleteObjCDefinitionTypeForDIE (const DWARFDIE &die,
                                                                const ConstString &type_name,
                                                                bool must_be_implementation)
 {
@@ -1280,10 +1274,10 @@ SymbolFileDWARFDebugMap::FindTypes
 (
     const SymbolContext& sc, 
     const ConstString &name,
-    const ClangNamespaceDecl *namespace_decl,
-    bool append, 
+    const CompilerDeclContext *parent_decl_ctx,
+    bool append,
     uint32_t max_matches, 
-    TypeList& types
+    TypeMap& types
 )
 {
     if (!append)
@@ -1296,12 +1290,12 @@ SymbolFileDWARFDebugMap::FindTypes
     {
         oso_dwarf = GetSymbolFile (sc);
         if (oso_dwarf)
-            return oso_dwarf->FindTypes (sc, name, namespace_decl, append, max_matches, types);
+            return oso_dwarf->FindTypes (sc, name, parent_decl_ctx, append, max_matches, types);
     }
     else
     {
         ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
-            oso_dwarf->FindTypes (sc, name, namespace_decl, append, max_matches, types);
+            oso_dwarf->FindTypes (sc, name, parent_decl_ctx, append, max_matches, types);
             return false;
         });
     }
@@ -1320,24 +1314,24 @@ SymbolFileDWARFDebugMap::FindTypes
 //}
 
 
-ClangNamespaceDecl
+CompilerDeclContext
 SymbolFileDWARFDebugMap::FindNamespace (const lldb_private::SymbolContext& sc, 
                                         const lldb_private::ConstString &name,
-                                        const ClangNamespaceDecl *parent_namespace_decl)
+                                        const CompilerDeclContext *parent_decl_ctx)
 {
-    ClangNamespaceDecl matching_namespace;
+    CompilerDeclContext matching_namespace;
     SymbolFileDWARF *oso_dwarf;
 
     if (sc.comp_unit)
     {
         oso_dwarf = GetSymbolFile (sc);
         if (oso_dwarf)
-            matching_namespace = oso_dwarf->FindNamespace (sc, name, parent_namespace_decl);
+            matching_namespace = oso_dwarf->FindNamespace (sc, name, parent_decl_ctx);
     }
     else
     {
         ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
-            matching_namespace = oso_dwarf->FindNamespace (sc, name, parent_namespace_decl);
+            matching_namespace = oso_dwarf->FindNamespace (sc, name, parent_decl_ctx);
 
             return (bool)matching_namespace;
         });
@@ -1401,7 +1395,6 @@ SymbolFileDWARFDebugMap::GetCompileUnitInfo (SymbolFileDWARF *oso_dwarf)
     return NULL;
 }
 
-
 void
 SymbolFileDWARFDebugMap::SetCompileUnit (SymbolFileDWARF *oso_dwarf, const CompUnitSP &cu_sp)
 {
@@ -1427,78 +1420,33 @@ SymbolFileDWARFDebugMap::SetCompileUnit (SymbolFileDWARF *oso_dwarf, const CompU
     }
 }
 
-
-void
-SymbolFileDWARFDebugMap::CompleteTagDecl (void *baton, clang::TagDecl *decl)
-{
-    SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton;
-    ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl);
-    if (clang_type)
-    {
-        symbol_file_dwarf->ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
-            if (oso_dwarf->HasForwardDeclForClangType (clang_type))
-            {
-                oso_dwarf->ResolveClangOpaqueTypeDefinition (clang_type);
-                return true;
-            }
-            return false;
-        });
-    }
-}
-
-void
-SymbolFileDWARFDebugMap::CompleteObjCInterfaceDecl (void *baton, clang::ObjCInterfaceDecl *decl)
-{
-    SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton;
-    ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl);
-    if (clang_type)
-    {
-        symbol_file_dwarf->ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
-            if (oso_dwarf->HasForwardDeclForClangType (clang_type))
-            {
-                oso_dwarf->ResolveClangOpaqueTypeDefinition (clang_type);
-                return true;
-            }
-            return false;
-        });
-    }
-}
-
-bool
-SymbolFileDWARFDebugMap::LayoutRecordType(void *baton, const clang::RecordDecl *record_decl, uint64_t &size,
-                                          uint64_t &alignment,
-                                          llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
-                                          llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
-                                          llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets)
-{
-    SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton;
-    bool laid_out = false;
-    symbol_file_dwarf->ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
-        return (laid_out = oso_dwarf->LayoutRecordType (record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets));
-    });
-    return laid_out;
-}
-
-
-
-clang::DeclContext*
-SymbolFileDWARFDebugMap::GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid)
+CompilerDeclContext
+SymbolFileDWARFDebugMap::GetDeclContextForUID (lldb::user_id_t type_uid)
 {
     const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid);
     SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx);
     if (oso_dwarf)
-        return oso_dwarf->GetClangDeclContextContainingTypeUID (type_uid);
-    return NULL;
+        return oso_dwarf->GetDeclContextForUID (type_uid);
+    return CompilerDeclContext();
 }
 
-clang::DeclContext*
-SymbolFileDWARFDebugMap::GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid)
+CompilerDeclContext
+SymbolFileDWARFDebugMap::GetDeclContextContainingUID (lldb::user_id_t type_uid)
 {
     const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid);
     SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx);
     if (oso_dwarf)
-        return oso_dwarf->GetClangDeclContextForTypeUID (sc, type_uid);
-    return NULL;
+        return oso_dwarf->GetDeclContextContainingUID (type_uid);
+    return CompilerDeclContext();
+}
+
+void
+SymbolFileDWARFDebugMap::ParseDeclsForContext (lldb_private::CompilerDeclContext decl_ctx)
+{
+    ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
+        oso_dwarf->ParseDeclsForContext (decl_ctx);
+        return true; // Keep iterating
+    });
 }
 
 bool
@@ -1613,7 +1561,6 @@ SymbolFileDWARFDebugMap::AddOSOARanges (SymbolFileDWARF* dwarf2Data, DWARFDebugA
                 const FileRangeMap::Entry* entry = file_range_map.GetEntryAtIndex(idx);
                 if (entry)
                 {
-                    printf ("[0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n", entry->GetRangeBase(), entry->GetRangeEnd());
                     debug_aranges->AppendRange(dwarf2Data->GetID(), entry->GetRangeBase(), entry->GetRangeEnd());
                     num_line_entries_added++;
                 }
@@ -1622,4 +1569,3 @@ SymbolFileDWARFDebugMap::AddOSOARanges (SymbolFileDWARF* dwarf2Data, DWARFDebugA
     }
     return num_line_entries_added;
 }
-
diff --git a/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
index ce0cfd744f0b5..1eb33c927bdfb 100644
--- a/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
+++ b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
@@ -14,19 +14,14 @@
 #include <vector>
 #include <bitset>
 
-#include "clang/AST/CharUnits.h"
-
 #include "lldb/Core/RangeMap.h"
 #include "lldb/Symbol/SymbolFile.h"
 
 #include "UniqueDWARFASTType.h"
 
 class SymbolFileDWARF;
-class DWARFCompileUnit;
 class DWARFDebugAranges;
-class DWARFDebugInfoEntry;
 class DWARFDeclContext;
-class DebugMapModule;
 
 class SymbolFileDWARFDebugMap : public lldb_private::SymbolFile
 {
@@ -57,7 +52,6 @@ public:
     ~SymbolFileDWARFDebugMap () override;
 
     uint32_t        CalculateAbilities () override;
-
     void            InitializeObject() override;
 
     //------------------------------------------------------------------
@@ -69,6 +63,7 @@ public:
     lldb::LanguageType ParseCompileUnitLanguage (const lldb_private::SymbolContext& sc) override;
     size_t          ParseCompileUnitFunctions (const lldb_private::SymbolContext& sc) override;
     bool            ParseCompileUnitLineTable (const lldb_private::SymbolContext& sc) override;
+    bool            ParseCompileUnitDebugMacros (const lldb_private::SymbolContext& sc) override;
     bool            ParseCompileUnitSupportFiles (const lldb_private::SymbolContext& sc, lldb_private::FileSpecList &support_files) override;
     bool            ParseImportedModules (const lldb_private::SymbolContext &sc, std::vector<lldb_private::ConstString> &imported_modules) override;
     size_t          ParseFunctionBlocks (const lldb_private::SymbolContext& sc) override;
@@ -76,39 +71,26 @@ public:
     size_t          ParseVariablesForContext (const lldb_private::SymbolContext& sc) override;
 
     lldb_private::Type* ResolveTypeUID (lldb::user_id_t type_uid) override;
-    clang::DeclContext* GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid) override;
-    clang::DeclContext* GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid) override;
-    bool            ResolveClangOpaqueTypeDefinition (lldb_private::ClangASTType& clang_type) override;
+    lldb_private::CompilerDeclContext GetDeclContextForUID (lldb::user_id_t uid) override;
+    lldb_private::CompilerDeclContext GetDeclContextContainingUID (lldb::user_id_t uid) override;
+    void ParseDeclsForContext (lldb_private::CompilerDeclContext decl_ctx) override;
+
+    bool            CompleteType (lldb_private::CompilerType& compiler_type) override;
     uint32_t        ResolveSymbolContext (const lldb_private::Address& so_addr, uint32_t resolve_scope, lldb_private::SymbolContext& sc) override;
     uint32_t        ResolveSymbolContext (const lldb_private::FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, lldb_private::SymbolContextList& sc_list) override;
-    uint32_t        FindGlobalVariables (const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, lldb_private::VariableList& variables) override;
+    uint32_t        FindGlobalVariables (const lldb_private::ConstString &name, const lldb_private::CompilerDeclContext *parent_decl_ctx, bool append, uint32_t max_matches, lldb_private::VariableList& variables) override;
     uint32_t        FindGlobalVariables (const lldb_private::RegularExpression& regex, bool append, uint32_t max_matches, lldb_private::VariableList& variables) override;
-    uint32_t        FindFunctions (const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, uint32_t name_type_mask, bool include_inlines, bool append, lldb_private::SymbolContextList& sc_list) override;
+    uint32_t        FindFunctions (const lldb_private::ConstString &name, const lldb_private::CompilerDeclContext *parent_decl_ctx, uint32_t name_type_mask, bool include_inlines, bool append, lldb_private::SymbolContextList& sc_list) override;
     uint32_t        FindFunctions (const lldb_private::RegularExpression& regex, bool include_inlines, bool append, lldb_private::SymbolContextList& sc_list) override;
-    uint32_t        FindTypes (const lldb_private::SymbolContext& sc, const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, lldb_private::TypeList& types) override;
-    lldb_private::ClangNamespaceDecl
+    uint32_t        FindTypes (const lldb_private::SymbolContext& sc, const lldb_private::ConstString &name, const lldb_private::CompilerDeclContext *parent_decl_ctx, bool append, uint32_t max_matches, lldb_private::TypeMap& types) override;
+    lldb_private::CompilerDeclContext
                     FindNamespace (const lldb_private::SymbolContext& sc,
                                    const lldb_private::ConstString &name,
-                                   const lldb_private::ClangNamespaceDecl *parent_namespace_decl) override;
+                                   const lldb_private::CompilerDeclContext *parent_decl_ctx) override;
     size_t          GetTypes (lldb_private::SymbolContextScope *sc_scope,
                               uint32_t type_mask,
                               lldb_private::TypeList &type_list) override;
 
-
-    //------------------------------------------------------------------
-    // ClangASTContext callbacks for external source lookups.
-    //------------------------------------------------------------------
-    static void
-    CompleteTagDecl (void *baton, clang::TagDecl *);
-    
-    static void
-    CompleteObjCInterfaceDecl (void *baton, clang::ObjCInterfaceDecl *);
-
-    static bool LayoutRecordType(void *baton, const clang::RecordDecl *record_decl, uint64_t &size, uint64_t &alignment,
-                                 llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
-                                 llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
-                                 llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets);
-
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
@@ -128,6 +110,7 @@ protected:
     friend class DWARFCompileUnit;
     friend class SymbolFileDWARF;
     friend class DebugMapModule;
+    friend class DWARFASTParserClang;
     struct OSOInfo
     {
         lldb::ModuleSP module_sp;
@@ -259,7 +242,7 @@ protected:
 
     uint32_t
     PrivateFindGlobalVariables (const lldb_private::ConstString &name,
-                                const lldb_private::ClangNamespaceDecl *namespace_decl,
+                                const lldb_private::CompilerDeclContext *parent_decl_ctx,
                                 const std::vector<uint32_t> &name_symbol_indexes,
                                 uint32_t max_matches,
                                 lldb_private::VariableList& variables);
@@ -281,7 +264,7 @@ protected:
     Supports_DW_AT_APPLE_objc_complete_type (SymbolFileDWARF *skip_dwarf_oso);
 
     lldb::TypeSP
-    FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry *die, 
+    FindCompleteObjCDefinitionTypeForDIE (const DWARFDIE &die,
                                           const lldb_private::ConstString &type_name,
                                           bool must_be_implementation);
     
diff --git a/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.cpp b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.cpp
new file mode 100644
index 0000000000000..326c397c83d56
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.cpp
@@ -0,0 +1,131 @@
+//===-- SymbolFileDWARFDwo.cpp ----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "SymbolFileDWARFDwo.h"
+
+#include "lldb/Core/Section.h"
+#include "lldb/Expression/DWARFExpression.h"
+#include "lldb/Symbol/ObjectFile.h"
+
+#include "DWARFCompileUnit.h"
+#include "DWARFDebugInfo.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+SymbolFileDWARFDwo::SymbolFileDWARFDwo(ObjectFileSP objfile, DWARFCompileUnit* dwarf_cu) :
+    SymbolFileDWARF(objfile.get()),
+    m_obj_file_sp(objfile),
+    m_base_dwarf_cu(dwarf_cu)
+{
+    SetID(((lldb::user_id_t)dwarf_cu->GetOffset())<<32);
+}
+
+void
+SymbolFileDWARFDwo::LoadSectionData (lldb::SectionType sect_type, DWARFDataExtractor& data)
+{
+    const SectionList* section_list = m_obj_file->GetSectionList(false /* update_module_section_list */);
+    if (section_list)
+    {
+        SectionSP section_sp (section_list->FindSectionByType(sect_type, true));
+        if (section_sp)
+        {
+            // See if we memory mapped the DWARF segment?
+            if (m_dwarf_data.GetByteSize())
+            {
+                data.SetData(m_dwarf_data, section_sp->GetOffset(), section_sp->GetFileSize());
+                return;
+            }
+
+            if (m_obj_file->ReadSectionData(section_sp.get(), data) != 0)
+                return;
+
+            data.Clear();
+        }
+    }
+
+    SymbolFileDWARF::LoadSectionData(sect_type, data);
+}
+
+lldb::CompUnitSP
+SymbolFileDWARFDwo::ParseCompileUnit(DWARFCompileUnit* dwarf_cu, uint32_t cu_idx)
+{
+    assert(GetCompileUnit() == dwarf_cu && "SymbolFileDWARFDwo::ParseCompileUnit called with incompatible compile unit");
+    return GetBaseSymbolFile()->ParseCompileUnit(m_base_dwarf_cu, UINT32_MAX);
+}
+
+DWARFCompileUnit*
+SymbolFileDWARFDwo::GetCompileUnit()
+{
+    // Only dwo files with 1 compile unit is supported
+    if (GetNumCompileUnits() == 1)
+        return DebugInfo()->GetCompileUnitAtIndex(0);
+    else
+        return nullptr;
+}
+
+DWARFCompileUnit*
+SymbolFileDWARFDwo::GetDWARFCompileUnit(lldb_private::CompileUnit *comp_unit)
+{
+    return GetCompileUnit();
+}
+
+SymbolFileDWARF::DIEToTypePtr&
+SymbolFileDWARFDwo::GetDIEToType()
+{
+    return GetBaseSymbolFile()->GetDIEToType();
+}
+
+SymbolFileDWARF::DIEToVariableSP&
+SymbolFileDWARFDwo::GetDIEToVariable()
+{
+    return GetBaseSymbolFile()->GetDIEToVariable();
+}
+
+SymbolFileDWARF::DIEToClangType&
+SymbolFileDWARFDwo::GetForwardDeclDieToClangType()
+{
+    return GetBaseSymbolFile()->GetForwardDeclDieToClangType();
+}
+
+SymbolFileDWARF::ClangTypeToDIE&
+SymbolFileDWARFDwo::GetForwardDeclClangTypeToDie()
+{
+    return GetBaseSymbolFile()->GetForwardDeclClangTypeToDie();
+}
+
+UniqueDWARFASTTypeMap&
+SymbolFileDWARFDwo::GetUniqueDWARFASTTypeMap()
+{
+    return GetBaseSymbolFile()->GetUniqueDWARFASTTypeMap();
+}
+
+lldb::TypeSP
+SymbolFileDWARFDwo::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &die_decl_ctx)
+{
+    return GetBaseSymbolFile()->FindDefinitionTypeForDWARFDeclContext(die_decl_ctx);
+}
+
+SymbolFileDWARF*
+SymbolFileDWARFDwo::GetBaseSymbolFile()
+{
+    return m_base_dwarf_cu->GetSymbolFileDWARF();
+}
+
+DWARFExpression::LocationListFormat
+SymbolFileDWARFDwo::GetLocationListFormat() const
+{
+    return DWARFExpression::SplitDwarfLocationList;
+}
+
+TypeSystem*
+SymbolFileDWARFDwo::GetTypeSystemForLanguage(LanguageType language)
+{
+    return GetBaseSymbolFile()->GetTypeSystemForLanguage(language);
+}
diff --git a/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.h b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.h
new file mode 100644
index 0000000000000..39ed6502229b5
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.h
@@ -0,0 +1,70 @@
+//===-- SymbolFileDWARFDwo.h ------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SymbolFileDWARFDwo_SymbolFileDWARFDwo_h_
+#define SymbolFileDWARFDwo_SymbolFileDWARFDwo_h_
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "SymbolFileDWARF.h"
+
+class SymbolFileDWARFDwo : public SymbolFileDWARF
+{
+public:
+    SymbolFileDWARFDwo(lldb::ObjectFileSP objfile, DWARFCompileUnit* dwarf_cu);
+
+    ~SymbolFileDWARFDwo() override = default;
+    
+    lldb::CompUnitSP
+    ParseCompileUnit(DWARFCompileUnit* dwarf_cu, uint32_t cu_idx) override;
+
+    DWARFCompileUnit*
+    GetCompileUnit();
+
+    DWARFCompileUnit*
+    GetDWARFCompileUnit(lldb_private::CompileUnit *comp_unit) override;
+
+    lldb_private::DWARFExpression::LocationListFormat
+    GetLocationListFormat() const override;
+
+    lldb_private::TypeSystem*
+    GetTypeSystemForLanguage(lldb::LanguageType language) override;
+
+protected:
+    void
+    LoadSectionData (lldb::SectionType sect_type, lldb_private::DWARFDataExtractor& data) override;
+
+    DIEToTypePtr&
+    GetDIEToType() override;
+
+    DIEToVariableSP&
+    GetDIEToVariable() override;
+    
+    DIEToClangType&
+    GetForwardDeclDieToClangType() override;
+
+    ClangTypeToDIE&
+    GetForwardDeclClangTypeToDie() override;
+
+    UniqueDWARFASTTypeMap&
+    GetUniqueDWARFASTTypeMap() override;
+
+    lldb::TypeSP
+    FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &die_decl_ctx) override;
+
+    SymbolFileDWARF*
+    GetBaseSymbolFile();
+
+    lldb::ObjectFileSP m_obj_file_sp;
+    DWARFCompileUnit* m_base_dwarf_cu;
+};
+
+#endif // SymbolFileDWARFDwo_SymbolFileDWARFDwo_h_
diff --git a/source/Plugins/SymbolFile/DWARF/UniqueDWARFASTType.cpp b/source/Plugins/SymbolFile/DWARF/UniqueDWARFASTType.cpp
index 94044c0feb30f..2ca407b9e48a0 100644
--- a/source/Plugins/SymbolFile/DWARF/UniqueDWARFASTType.cpp
+++ b/source/Plugins/SymbolFile/DWARF/UniqueDWARFASTType.cpp
@@ -15,58 +15,51 @@
 // Project includes
 #include "lldb/Symbol/Declaration.h"
 
-#include "DWARFDebugInfoEntry.h"
-
 bool
-UniqueDWARFASTTypeList::Find 
-(
-    SymbolFileDWARF *symfile,
-    const DWARFCompileUnit *cu,
-    const DWARFDebugInfoEntry *die, 
-    const lldb_private::Declaration &decl,
-    const int32_t byte_size,
-    UniqueDWARFASTType &entry
-) const
+UniqueDWARFASTTypeList::Find (const DWARFDIE &die,
+                              const lldb_private::Declaration &decl,
+                              const int32_t byte_size,
+                              UniqueDWARFASTType &entry) const
 {
-    collection::const_iterator pos, end = m_collection.end();
-    for (pos = m_collection.begin(); pos != end; ++pos)
+    for (const UniqueDWARFASTType &udt : m_collection)
     {
         // Make sure the tags match
-        if (pos->m_die->Tag() == die->Tag())
+        if (udt.m_die.Tag() == die.Tag())
         {
             // Validate byte sizes of both types only if both are valid.
-            if (pos->m_byte_size < 0 || byte_size < 0 || pos->m_byte_size == byte_size)
+            if (udt.m_byte_size < 0 || byte_size < 0 || udt.m_byte_size == byte_size)
             {
                 // Make sure the file and line match
-                if (pos->m_declaration == decl)
+                if (udt.m_declaration == decl)
                 {
                     // The type has the same name, and was defined on the same
                     // file and line. Now verify all of the parent DIEs match.
-                    const DWARFDebugInfoEntry *parent_arg_die = die->GetParent();
-                    const DWARFDebugInfoEntry *parend_pos_die = pos->m_die->GetParent();
+                    DWARFDIE parent_arg_die = die.GetParent();
+                    DWARFDIE parent_pos_die = udt.m_die.GetParent();
                     bool match = true;
                     bool done = false;
-                    while (!done && match && parent_arg_die && parend_pos_die)
+                    while (!done && match && parent_arg_die && parent_pos_die)
                     {
-                        if (parent_arg_die->Tag() == parend_pos_die->Tag())
+                        const dw_tag_t parent_arg_tag = parent_arg_die.Tag();
+                        const dw_tag_t parent_pos_tag = parent_pos_die.Tag();
+                        if (parent_arg_tag == parent_pos_tag)
                         {
-                            const dw_tag_t tag = parent_arg_die->Tag();
-                            switch (tag)
+                            switch (parent_arg_tag)
                             {
                             case DW_TAG_class_type:
                             case DW_TAG_structure_type:
                             case DW_TAG_union_type:
                             case DW_TAG_namespace:
                                 {
-                                    const char *parent_arg_die_name = parent_arg_die->GetName(symfile, cu);
+                                    const char *parent_arg_die_name = parent_arg_die.GetName();
                                     if (parent_arg_die_name == NULL)  // Anonymous (i.e. no-name) struct
                                     {
                                         match = false;
                                     }
                                     else
                                     {
-                                        const char *parent_pos_die_name = parend_pos_die->GetName(pos->m_symfile, pos->m_cu);
-                                        if (parent_pos_die_name == NULL || strcmp (parent_arg_die_name, parent_pos_die_name))
+                                        const char *parent_pos_die_name = parent_pos_die.GetName();
+                                        if (parent_pos_die_name == NULL || ((parent_arg_die_name != parent_pos_die_name) && strcmp (parent_arg_die_name, parent_pos_die_name)))
                                             match = false;
                                     }
                                 }
@@ -77,13 +70,13 @@ UniqueDWARFASTTypeList::Find
                                 break;
                             }
                         }
-                        parent_arg_die = parent_arg_die->GetParent();
-                        parend_pos_die = parend_pos_die->GetParent();
+                        parent_arg_die = parent_arg_die.GetParent();
+                        parent_pos_die = parent_pos_die.GetParent();
                     }
 
                     if (match)
                     {
-                        entry = *pos;
+                        entry = udt;
                         return true;
                     }
                 }
diff --git a/source/Plugins/SymbolFile/DWARF/UniqueDWARFASTType.h b/source/Plugins/SymbolFile/DWARF/UniqueDWARFASTType.h
index c85e175235ca6..b7b18efd87690 100644
--- a/source/Plugins/SymbolFile/DWARF/UniqueDWARFASTType.h
+++ b/source/Plugins/SymbolFile/DWARF/UniqueDWARFASTType.h
@@ -19,10 +19,7 @@
 
 // Project includes
 #include "lldb/Symbol/Declaration.h"
-
-class DWARFCompileUnit;
-class DWARFDebugInfoEntry;
-class SymbolFileDWARF;
+#include "DWARFDIE.h"
 
 class UniqueDWARFASTType
 {
@@ -32,23 +29,17 @@ public:
 	//------------------------------------------------------------------
 	UniqueDWARFASTType () :
         m_type_sp (),
-        m_symfile (NULL),
-        m_cu (NULL),
-        m_die (NULL),
+        m_die (),
         m_declaration (),
         m_byte_size (-1) // Set to negative value to make sure we have a valid value
     {
     }
 
 	UniqueDWARFASTType (lldb::TypeSP &type_sp,
-                        SymbolFileDWARF *symfile,
-                        DWARFCompileUnit *cu,
-                        DWARFDebugInfoEntry *die,
+                        const DWARFDIE &die,
                         const lldb_private::Declaration &decl,
                         int32_t byte_size) :
         m_type_sp (type_sp),
-        m_symfile (symfile),
-        m_cu (cu),
         m_die (die),
         m_declaration (decl),
         m_byte_size (byte_size)
@@ -57,8 +48,6 @@ public:
     
     UniqueDWARFASTType (const UniqueDWARFASTType &rhs) :
         m_type_sp (rhs.m_type_sp),
-        m_symfile (rhs.m_symfile),
-        m_cu (rhs.m_cu),
         m_die (rhs.m_die),
         m_declaration (rhs.m_declaration),
         m_byte_size (rhs.m_byte_size)
@@ -75,8 +64,6 @@ public:
         if (this != &rhs)
         {
             m_type_sp = rhs.m_type_sp;
-            m_symfile = rhs.m_symfile;
-            m_cu = rhs.m_cu;
             m_die = rhs.m_die;
             m_declaration = rhs.m_declaration;
             m_byte_size = rhs.m_byte_size;
@@ -85,9 +72,7 @@ public:
     }
 
     lldb::TypeSP m_type_sp;
-    SymbolFileDWARF *m_symfile;
-    const DWARFCompileUnit *m_cu;
-    const DWARFDebugInfoEntry *m_die;
+    DWARFDIE m_die;
     lldb_private::Declaration m_declaration;
     int32_t m_byte_size;
 };
@@ -117,9 +102,7 @@ public:
     }
     
     bool
-    Find (SymbolFileDWARF *symfile,
-          const DWARFCompileUnit *cu,
-          const DWARFDebugInfoEntry *die, 
+    Find (const DWARFDIE &die,
           const lldb_private::Declaration &decl,
           const int32_t byte_size,
           UniqueDWARFASTType &entry) const;
@@ -149,10 +132,8 @@ public:
     }
 
     bool
-    Find (const lldb_private::ConstString &name, 
-          SymbolFileDWARF *symfile,
-          const DWARFCompileUnit *cu,
-          const DWARFDebugInfoEntry *die, 
+    Find (const lldb_private::ConstString &name,
+          const DWARFDIE &die,
           const lldb_private::Declaration &decl,
           const int32_t byte_size,
           UniqueDWARFASTType &entry) const
@@ -161,7 +142,7 @@ public:
         collection::const_iterator pos = m_collection.find (unique_name_cstr);
         if (pos != m_collection.end())
         {
-            return pos->second.Find (symfile, cu, die, decl, byte_size, entry);
+            return pos->second.Find (die, decl, byte_size, entry);
         }
         return false;
     }
diff --git a/source/Plugins/SymbolFile/Symtab/SymbolFileSymtab.cpp b/source/Plugins/SymbolFile/Symtab/SymbolFileSymtab.cpp
index 09b919782608f..d3dd1ae923e02 100644
--- a/source/Plugins/SymbolFile/Symtab/SymbolFileSymtab.cpp
+++ b/source/Plugins/SymbolFile/Symtab/SymbolFileSymtab.cpp
@@ -12,7 +12,6 @@
 #include "lldb/Core/PluginManager.h"
 #include "lldb/Core/RegularExpression.h"
 #include "lldb/Core/Timer.h"
-#include "lldb/Symbol/ClangExternalASTSourceCommon.h"
 #include "lldb/Symbol/CompileUnit.h"
 #include "lldb/Symbol/Function.h"
 #include "lldb/Symbol/ObjectFile.h"
@@ -79,14 +78,6 @@ SymbolFileSymtab::~SymbolFileSymtab()
 {
 }
 
-ClangASTContext &       
-SymbolFileSymtab::GetClangASTContext ()
-{    
-    ClangASTContext &ast = m_obj_file->GetModule()->GetClangASTContext();
-    
-    return ast;
-}
-
 uint32_t
 SymbolFileSymtab::CalculateAbilities ()
 {
@@ -115,6 +106,7 @@ SymbolFileSymtab::CalculateAbilities ()
             if (symtab->AppendSymbolIndexesWithType(eSymbolTypeCode, Symtab::eDebugNo, Symtab::eVisibilityAny, m_code_indexes))
             {
                 symtab->SortSymbolIndexesByValue(m_code_indexes, true);
+                abilities |= Functions;
             }
 
             if (symtab->AppendSymbolIndexesWithType(eSymbolTypeData, m_data_indexes))
@@ -161,7 +153,7 @@ SymbolFileSymtab::ParseCompileUnitAtIndex(uint32_t idx)
     {
         const Symbol *cu_symbol = m_obj_file->GetSymtab()->SymbolAtIndex(m_source_indexes[idx]);
         if (cu_symbol)
-            cu_sp.reset(new CompileUnit (m_obj_file->GetModule(), NULL, cu_symbol->GetName().AsCString(), 0, eLanguageTypeUnknown));
+            cu_sp.reset(new CompileUnit (m_obj_file->GetModule(), NULL, cu_symbol->GetName().AsCString(), 0, eLanguageTypeUnknown, false));
     }
     return cu_sp;
 }
@@ -261,6 +253,12 @@ SymbolFileSymtab::ParseCompileUnitLineTable (const SymbolContext &sc)
 }
 
 bool
+SymbolFileSymtab::ParseCompileUnitDebugMacros (const SymbolContext &sc)
+{
+    return false;
+}
+
+bool
 SymbolFileSymtab::ParseCompileUnitSupportFiles (const SymbolContext& sc, FileSpecList &support_files)
 {
     return false;
@@ -299,17 +297,11 @@ SymbolFileSymtab::ResolveTypeUID(lldb::user_id_t type_uid)
 }
 
 bool
-SymbolFileSymtab::ResolveClangOpaqueTypeDefinition (lldb_private::ClangASTType& clang_opaque_type)
+SymbolFileSymtab::CompleteType (lldb_private::CompilerType& compiler_type)
 {
     return false;
 }
 
-ClangNamespaceDecl 
-SymbolFileSymtab::FindNamespace (const SymbolContext& sc, const ConstString &name, const ClangNamespaceDecl *namespace_decl)
-{
-    return ClangNamespaceDecl();
-}
-
 uint32_t
 SymbolFileSymtab::ResolveSymbolContext (const Address& so_addr, uint32_t resolve_scope, SymbolContext& sc)
 {
@@ -326,63 +318,6 @@ SymbolFileSymtab::ResolveSymbolContext (const Address& so_addr, uint32_t resolve
     return resolved_flags;
 }
 
-uint32_t
-SymbolFileSymtab::ResolveSymbolContext (const FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list)
-{
-    return 0;
-}
-
-uint32_t
-SymbolFileSymtab::FindGlobalVariables(const ConstString &name, const ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables)
-{
-    return 0;
-}
-
-uint32_t
-SymbolFileSymtab::FindGlobalVariables(const RegularExpression& regex, bool append, uint32_t max_matches, VariableList& variables)
-{
-    return 0;
-}
-
-uint32_t
-SymbolFileSymtab::FindFunctions(const ConstString &name, const ClangNamespaceDecl *namespace_decl, uint32_t name_type_mask, bool include_inlines,  bool append, SymbolContextList& sc_list)
-{
-    Timer scoped_timer (__PRETTY_FUNCTION__,
-                        "SymbolFileSymtab::FindFunctions (name = '%s')",
-                        name.GetCString());
-    // If we ever support finding STABS or COFF debug info symbols, 
-    // we will need to add support here. We are not trying to find symbols
-    // here, just "lldb_private::Function" objects that come from complete 
-    // debug information. Any symbol queries should go through the symbol
-    // table itself in the module's object file.
-    return 0;
-}
-
-uint32_t
-SymbolFileSymtab::FindFunctions(const RegularExpression& regex, bool include_inlines, bool append, SymbolContextList& sc_list)
-{
-    Timer scoped_timer (__PRETTY_FUNCTION__,
-                        "SymbolFileSymtab::FindFunctions (regex = '%s')",
-                        regex.GetText());
-    // If we ever support finding STABS or COFF debug info symbols, 
-    // we will need to add support here. We are not trying to find symbols
-    // here, just "lldb_private::Function" objects that come from complete 
-    // debug information. Any symbol queries should go through the symbol
-    // table itself in the module's object file.
-    return 0;
-}
-
-uint32_t
-SymbolFileSymtab::FindTypes (const lldb_private::SymbolContext& sc, 
-                             const lldb_private::ConstString &name, 
-                             const ClangNamespaceDecl *namespace_decl, 
-                             bool append, 
-                             uint32_t max_matches, 
-                             lldb_private::TypeList& types)
-{
-    return 0;
-}
-
 //------------------------------------------------------------------
 // PluginInterface protocol
 //------------------------------------------------------------------
diff --git a/source/Plugins/SymbolFile/Symtab/SymbolFileSymtab.h b/source/Plugins/SymbolFile/Symtab/SymbolFileSymtab.h
index d606419a0d948..4648da49cb9fa 100644
--- a/source/Plugins/SymbolFile/Symtab/SymbolFileSymtab.h
+++ b/source/Plugins/SymbolFile/Symtab/SymbolFileSymtab.h
@@ -10,14 +10,26 @@
 #ifndef liblldb_SymbolFileSymtab_h_
 #define liblldb_SymbolFileSymtab_h_
 
+// C Includes
+// C++ Includes
+#include <vector>
+
+// Other libraries and framework includes
+// Project includes
 #include "lldb/Symbol/SymbolFile.h"
 #include "lldb/Symbol/Symtab.h"
-#include <vector>
 
 class SymbolFileSymtab : public lldb_private::SymbolFile
 {
 public:
     //------------------------------------------------------------------
+    // Constructors and Destructors
+    //------------------------------------------------------------------
+    SymbolFileSymtab(lldb_private::ObjectFile* obj_file);
+
+    ~SymbolFileSymtab() override;
+
+    //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
     static void
@@ -35,94 +47,71 @@ public:
     static lldb_private::SymbolFile*
     CreateInstance (lldb_private::ObjectFile* obj_file);
 
-    //------------------------------------------------------------------
-    // Constructors and Destructors
-    //------------------------------------------------------------------
-    SymbolFileSymtab(lldb_private::ObjectFile* obj_file);
-
-    virtual
-    ~SymbolFileSymtab();
-
-    virtual uint32_t        CalculateAbilities ();
+    uint32_t
+    CalculateAbilities() override;
 
     //------------------------------------------------------------------
     // Compile Unit function calls
     //------------------------------------------------------------------
-    virtual uint32_t
-    GetNumCompileUnits();
-
-    virtual lldb::CompUnitSP
-    ParseCompileUnitAtIndex(uint32_t index);
-
-    virtual lldb::LanguageType
-    ParseCompileUnitLanguage (const lldb_private::SymbolContext& sc);
-
-    virtual size_t
-    ParseCompileUnitFunctions (const lldb_private::SymbolContext& sc);
-
-    virtual bool
-    ParseCompileUnitLineTable (const lldb_private::SymbolContext& sc);
+    uint32_t
+    GetNumCompileUnits() override;
 
-    virtual bool
-    ParseCompileUnitSupportFiles (const lldb_private::SymbolContext& sc, lldb_private::FileSpecList &support_files);
-    
-    virtual bool
-    ParseImportedModules (const lldb_private::SymbolContext &sc, std::vector<lldb_private::ConstString> &imported_modules);
-
-    virtual size_t
-    ParseFunctionBlocks (const lldb_private::SymbolContext& sc);
-
-    virtual size_t
-    ParseTypes (const lldb_private::SymbolContext& sc);
+    lldb::CompUnitSP
+    ParseCompileUnitAtIndex(uint32_t index) override;
 
-    virtual size_t
-    ParseVariablesForContext (const lldb_private::SymbolContext& sc);
+    lldb::LanguageType
+    ParseCompileUnitLanguage(const lldb_private::SymbolContext& sc) override;
 
-    virtual lldb_private::Type*
-    ResolveTypeUID(lldb::user_id_t type_uid);
+    size_t
+    ParseCompileUnitFunctions(const lldb_private::SymbolContext& sc) override;
 
-    virtual bool
-    ResolveClangOpaqueTypeDefinition (lldb_private::ClangASTType& clang_type);
+    bool
+    ParseCompileUnitLineTable(const lldb_private::SymbolContext& sc) override;
 
-    virtual uint32_t
-    ResolveSymbolContext (const lldb_private::Address& so_addr, uint32_t resolve_scope, lldb_private::SymbolContext& sc);
+    bool
+    ParseCompileUnitDebugMacros(const lldb_private::SymbolContext& sc) override;
 
-    virtual uint32_t
-    ResolveSymbolContext (const lldb_private::FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, lldb_private::SymbolContextList& sc_list);
+    bool
+    ParseCompileUnitSupportFiles(const lldb_private::SymbolContext& sc,
+                                 lldb_private::FileSpecList &support_files) override;
+    
+    bool
+    ParseImportedModules(const lldb_private::SymbolContext &sc,
+                         std::vector<lldb_private::ConstString> &imported_modules) override;
 
-    virtual uint32_t
-    FindGlobalVariables(const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, lldb_private::VariableList& variables);
+    size_t
+    ParseFunctionBlocks(const lldb_private::SymbolContext& sc) override;
 
-    virtual uint32_t
-    FindGlobalVariables(const lldb_private::RegularExpression& regex, bool append, uint32_t max_matches, lldb_private::VariableList& variables);
+    size_t
+    ParseTypes(const lldb_private::SymbolContext& sc) override;
 
-    virtual uint32_t
-    FindFunctions(const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, uint32_t name_type_mask, bool include_inlines, bool append, lldb_private::SymbolContextList& sc_list);
+    size_t
+    ParseVariablesForContext(const lldb_private::SymbolContext& sc) override;
 
-    virtual uint32_t
-    FindFunctions(const lldb_private::RegularExpression& regex, bool include_inlines, bool append, lldb_private::SymbolContextList& sc_list);
+    lldb_private::Type*
+    ResolveTypeUID(lldb::user_id_t type_uid) override;
 
-    virtual uint32_t
-    FindTypes (const lldb_private::SymbolContext& sc,const lldb_private::ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, lldb_private::TypeList& types);
+    bool
+    CompleteType(lldb_private::CompilerType& compiler_type) override;
 
-    virtual size_t
-    GetTypes (lldb_private::SymbolContextScope *sc_scope,
-              uint32_t type_mask,
-              lldb_private::TypeList &type_list);
+    uint32_t
+    ResolveSymbolContext(const lldb_private::Address& so_addr,
+                         uint32_t resolve_scope,
+                         lldb_private::SymbolContext& sc) override;
 
-    virtual lldb_private::ClangNamespaceDecl
-    FindNamespace (const lldb_private::SymbolContext& sc, 
-                   const lldb_private::ConstString &name, 
-                   const lldb_private::ClangNamespaceDecl *parent_namespace_decl);
+    size_t
+    GetTypes(lldb_private::SymbolContextScope *sc_scope,
+             uint32_t type_mask,
+             lldb_private::TypeList &type_list) override;
 
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
 
-    virtual uint32_t
-    GetPluginVersion();
+    uint32_t
+    GetPluginVersion() override;
 
 protected:
     typedef std::map<lldb_private::ConstString, lldb::TypeSP> TypeMap;
@@ -133,13 +122,9 @@ protected:
     lldb_private::Symtab::IndexCollection m_data_indexes;
     lldb_private::Symtab::NameToIndexMap m_objc_class_name_to_index;
     TypeMap m_objc_class_types;
-
-    lldb_private::ClangASTContext &
-    GetClangASTContext ();
     
 private:
     DISALLOW_COPY_AND_ASSIGN (SymbolFileSymtab);
 };
 
-
-#endif  // liblldb_SymbolFileSymtab_h_
+#endif // liblldb_SymbolFileSymtab_h_
diff --git a/source/Plugins/SymbolVendor/ELF/SymbolVendorELF.cpp b/source/Plugins/SymbolVendor/ELF/SymbolVendorELF.cpp
index a9f8f36e610e2..3cd1b68d7b0f3 100644
--- a/source/Plugins/SymbolVendor/ELF/SymbolVendorELF.cpp
+++ b/source/Plugins/SymbolVendor/ELF/SymbolVendorELF.cpp
@@ -142,17 +142,19 @@ SymbolVendorELF::CreateInstance (const lldb::ModuleSP &module_sp, lldb_private::
 
                     static const SectionType g_sections[] =
                     {
-                        eSectionTypeDWARFDebugAranges,
-                        eSectionTypeDWARFDebugInfo,
                         eSectionTypeDWARFDebugAbbrev,
+                        eSectionTypeDWARFDebugAddr,
+                        eSectionTypeDWARFDebugAranges,
                         eSectionTypeDWARFDebugFrame,
+                        eSectionTypeDWARFDebugInfo,
                         eSectionTypeDWARFDebugLine,
-                        eSectionTypeDWARFDebugStr,
                         eSectionTypeDWARFDebugLoc,
                         eSectionTypeDWARFDebugMacInfo,
                         eSectionTypeDWARFDebugPubNames,
                         eSectionTypeDWARFDebugPubTypes,
                         eSectionTypeDWARFDebugRanges,
+                        eSectionTypeDWARFDebugStr,
+                        eSectionTypeDWARFDebugStrOffsets,
                         eSectionTypeELFSymbolTable,
                     };
                     for (size_t idx = 0; idx < sizeof(g_sections) / sizeof(g_sections[0]); ++idx)
diff --git a/source/Plugins/SymbolVendor/ELF/SymbolVendorELF.h b/source/Plugins/SymbolVendor/ELF/SymbolVendorELF.h
index acd62b6cc3ab7..425ff9efc59c1 100644
--- a/source/Plugins/SymbolVendor/ELF/SymbolVendorELF.h
+++ b/source/Plugins/SymbolVendor/ELF/SymbolVendorELF.h
@@ -1,4 +1,4 @@
-//===-- SymbolVendorELF.h ------------------------------------*- C++ -*-===//
+//===-- SymbolVendorELF.h ---------------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -10,6 +10,10 @@
 #ifndef liblldb_SymbolVendorELF_h_
 #define liblldb_SymbolVendorELF_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-private.h"
 #include "lldb/Symbol/SymbolVendor.h"
 
@@ -17,6 +21,13 @@ class SymbolVendorELF : public lldb_private::SymbolVendor
 {
 public:
     //------------------------------------------------------------------
+    // Constructors and Destructors
+    //------------------------------------------------------------------
+    SymbolVendorELF (const lldb::ModuleSP &module_sp);
+
+    ~SymbolVendorELF() override;
+
+    //------------------------------------------------------------------
     // Static Functions
     //------------------------------------------------------------------
     static void
@@ -35,24 +46,16 @@ public:
     CreateInstance (const lldb::ModuleSP &module_sp, lldb_private::Stream *feedback_strm);
 
     //------------------------------------------------------------------
-    // Constructors and Destructors
-    //------------------------------------------------------------------
-    SymbolVendorELF (const lldb::ModuleSP &module_sp);
-
-    virtual
-    ~SymbolVendorELF();
-
-    //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
 
-    virtual uint32_t
-    GetPluginVersion();
+    uint32_t
+    GetPluginVersion() override;
 
 private:
     DISALLOW_COPY_AND_ASSIGN (SymbolVendorELF);
 };
 
-#endif  // liblldb_SymbolVendorELF_h_
+#endif // liblldb_SymbolVendorELF_h_
diff --git a/source/Plugins/UnwindAssembly/InstEmulation/UnwindAssemblyInstEmulation.cpp b/source/Plugins/UnwindAssembly/InstEmulation/UnwindAssemblyInstEmulation.cpp
index 8f5d92697501c..eb5fec34fc200 100644
--- a/source/Plugins/UnwindAssembly/InstEmulation/UnwindAssemblyInstEmulation.cpp
+++ b/source/Plugins/UnwindAssembly/InstEmulation/UnwindAssemblyInstEmulation.cpp
@@ -117,21 +117,13 @@ UnwindAssemblyInstEmulation::GetNonCallSiteUnwindPlanFromAssembly (AddressRange&
 
                 // cache the pc register number (in whatever register numbering this UnwindPlan uses) for
                 // quick reference during instruction parsing.
-                uint32_t pc_reg_num = LLDB_INVALID_REGNUM;
                 RegisterInfo pc_reg_info;
-                if (m_inst_emulator_ap->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC, pc_reg_info))
-                    pc_reg_num = pc_reg_info.kinds[unwind_plan.GetRegisterKind()];
-                else
-                    pc_reg_num = LLDB_INVALID_REGNUM;
+                m_inst_emulator_ap->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC, pc_reg_info);
 
                 // cache the return address register number (in whatever register numbering this UnwindPlan uses) for
                 // quick reference during instruction parsing.
-                uint32_t ra_reg_num = LLDB_INVALID_REGNUM;
                 RegisterInfo ra_reg_info;
-                if (m_inst_emulator_ap->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_RA, ra_reg_info))
-                    ra_reg_num = ra_reg_info.kinds[unwind_plan.GetRegisterKind()];
-                else
-                    ra_reg_num = LLDB_INVALID_REGNUM;
+                m_inst_emulator_ap->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_RA, ra_reg_info);
 
                 for (size_t idx=0; idx<num_instructions; ++idx)
                 {
@@ -511,7 +503,8 @@ UnwindAssemblyInstEmulation::WriteRegister (EmulateInstruction *instruction,
         log->PutCString(strm.GetData());
     }
 
-    SetRegisterValue (*reg_info, reg_value);
+    if (!instruction->IsInstructionConditional())
+        SetRegisterValue (*reg_info, reg_value);
 
     switch (context.type)
     {
@@ -573,18 +566,45 @@ UnwindAssemblyInstEmulation::WriteRegister (EmulateInstruction *instruction,
 
         case EmulateInstruction::eContextPopRegisterOffStack:
             {
-                const uint32_t reg_num = reg_info->kinds[m_unwind_plan_ptr->GetRegisterKind()];
-                const uint32_t generic_regnum = reg_info->kinds[eRegisterKindGeneric];
-                if (reg_num != LLDB_INVALID_REGNUM && generic_regnum != LLDB_REGNUM_GENERIC_SP)
+                if (!instruction->IsInstructionConditional())
                 {
-                    m_curr_row->SetRegisterLocationToSame (reg_num, /*must_replace*/ false);
-                    m_curr_row_modified = true;
+                    const uint32_t reg_num = reg_info->kinds[m_unwind_plan_ptr->GetRegisterKind()];
+                    const uint32_t generic_regnum = reg_info->kinds[eRegisterKindGeneric];
+                    if (reg_num != LLDB_INVALID_REGNUM && generic_regnum != LLDB_REGNUM_GENERIC_SP)
+                    {
+                        switch (context.info_type)
+                        {
+                            case EmulateInstruction::eInfoTypeAddress:
+                                if (m_pushed_regs.find(reg_num) != m_pushed_regs.end() &&
+                                    context.info.address == m_pushed_regs[reg_num])
+                                {
+                                    m_curr_row->SetRegisterLocationToSame(reg_num,
+                                                                          false /*must_replace*/);
+                                    m_curr_row_modified = true;
+                                }
+                                break;
+                            case EmulateInstruction::eInfoTypeISA:
+                                assert((generic_regnum == LLDB_REGNUM_GENERIC_PC ||
+                                        generic_regnum == LLDB_REGNUM_GENERIC_FLAGS) &&
+                                       "eInfoTypeISA used for poping a register other the the PC/FLAGS");
+                                if (generic_regnum != LLDB_REGNUM_GENERIC_FLAGS)
+                                {
+                                    m_curr_row->SetRegisterLocationToSame(reg_num,
+                                                                          false /*must_replace*/);
+                                    m_curr_row_modified = true;
+                                }
+                                break;
+                            default:
+                                assert(false && "unhandled case, add code to handle this!");
+                                break;
+                        }
+                    }
                 }
             }
             break;
 
         case EmulateInstruction::eContextSetFramePointer:
-            if (!m_fp_is_cfa)
+            if (!m_fp_is_cfa && !instruction->IsInstructionConditional())
             {
                 m_fp_is_cfa = true;
                 m_cfa_reg_info = *reg_info;
@@ -599,7 +619,7 @@ UnwindAssemblyInstEmulation::WriteRegister (EmulateInstruction *instruction,
         case EmulateInstruction::eContextAdjustStackPointer:
             // If we have created a frame using the frame pointer, don't follow
             // subsequent adjustments to the stack pointer.
-            if (!m_fp_is_cfa)
+            if (!m_fp_is_cfa && !instruction->IsInstructionConditional())
             {
                 m_curr_row->GetCFAValue().SetIsRegisterPlusOffset(
                         m_curr_row->GetCFAValue().GetRegisterNumber(),
diff --git a/source/Plugins/UnwindAssembly/InstEmulation/UnwindAssemblyInstEmulation.h b/source/Plugins/UnwindAssembly/InstEmulation/UnwindAssemblyInstEmulation.h
index bf6d017370cc2..61d3ece3f6c36 100644
--- a/source/Plugins/UnwindAssembly/InstEmulation/UnwindAssemblyInstEmulation.h
+++ b/source/Plugins/UnwindAssembly/InstEmulation/UnwindAssemblyInstEmulation.h
@@ -1,4 +1,4 @@
-//===-- UnwindAssemblyInstEmulation.h ----------------------------*- C++ -*-===//
+//===-- UnwindAssemblyInstEmulation.h ---------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -10,6 +10,10 @@
 #ifndef liblldb_UnwindAssemblyInstEmulation_h_
 #define liblldb_UnwindAssemblyInstEmulation_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
 #include "lldb/lldb-private.h"
 #include "lldb/Core/EmulateInstruction.h"
 #include "lldb/Core/RegisterValue.h"
@@ -19,32 +23,28 @@
 class UnwindAssemblyInstEmulation : public lldb_private::UnwindAssembly
 {
 public:
+    ~UnwindAssemblyInstEmulation() override = default;
 
-    virtual
-    ~UnwindAssemblyInstEmulation () 
-    {
-    }
-
-    virtual bool
-    GetNonCallSiteUnwindPlanFromAssembly (lldb_private::AddressRange& func, 
-                                          lldb_private::Thread& thread, 
-                                          lldb_private::UnwindPlan& unwind_plan);
+    bool
+    GetNonCallSiteUnwindPlanFromAssembly(lldb_private::AddressRange& func,
+                                         lldb_private::Thread& thread,
+                                         lldb_private::UnwindPlan& unwind_plan) override;
 
-    virtual bool
-    AugmentUnwindPlanFromCallSite (lldb_private::AddressRange& func,
-                                   lldb_private::Thread& thread,
-                                   lldb_private::UnwindPlan& unwind_plan);
+    bool
+    AugmentUnwindPlanFromCallSite(lldb_private::AddressRange& func,
+                                  lldb_private::Thread& thread,
+                                  lldb_private::UnwindPlan& unwind_plan) override;
 
-    virtual bool
-    GetFastUnwindPlan (lldb_private::AddressRange& func, 
-                       lldb_private::Thread& thread, 
-                       lldb_private::UnwindPlan &unwind_plan);
+    bool
+    GetFastUnwindPlan(lldb_private::AddressRange& func,
+                      lldb_private::Thread& thread,
+                      lldb_private::UnwindPlan &unwind_plan) override;
 
     // thread may be NULL in which case we only use the Target (e.g. if this is called pre-process-launch).
-    virtual bool
-    FirstNonPrologueInsn (lldb_private::AddressRange& func, 
-                          const lldb_private::ExecutionContext &exe_ctx, 
-                          lldb_private::Address& first_non_prologue_insn);
+    bool
+    FirstNonPrologueInsn(lldb_private::AddressRange& func,
+                         const lldb_private::ExecutionContext &exe_ctx,
+                         lldb_private::Address& first_non_prologue_insn) override;
 
     static lldb_private::UnwindAssembly *
     CreateInstance (const lldb_private::ArchSpec &arch);
@@ -64,14 +64,36 @@ public:
     static const char *
     GetPluginDescriptionStatic();
 
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
     
-    virtual uint32_t
-    GetPluginVersion();
+    uint32_t
+    GetPluginVersion() override;
     
 private:
-    
+    // Call CreateInstance to get an instance of this class
+    UnwindAssemblyInstEmulation(const lldb_private::ArchSpec &arch,
+                                lldb_private::EmulateInstruction *inst_emulator) :
+        UnwindAssembly (arch),
+        m_inst_emulator_ap (inst_emulator),
+        m_range_ptr (NULL),
+        m_thread_ptr (NULL),
+        m_unwind_plan_ptr (NULL),
+        m_curr_row (),
+        m_cfa_reg_info (),
+        m_fp_is_cfa (false),
+        m_register_values (),
+        m_pushed_regs(),
+        m_curr_row_modified (false),
+        m_forward_branch_offset (0)
+    {
+        if (m_inst_emulator_ap.get())
+        {
+            m_inst_emulator_ap->SetBaton (this);
+            m_inst_emulator_ap->SetCallbacks (ReadMemory, WriteMemory, ReadRegister, WriteRegister);
+        }
+    }
+
     static size_t
     ReadMemory (lldb_private::EmulateInstruction *instruction,
                 void *baton,
@@ -101,7 +123,6 @@ private:
                    const lldb_private::RegisterInfo *reg_info,
                    const lldb_private::RegisterValue &reg_value);
 
-
 //    size_t
 //    ReadMemory (lldb_private::EmulateInstruction *instruction,
 //                const lldb_private::EmulateInstruction::Context &context, 
@@ -127,29 +148,6 @@ private:
                    const lldb_private::RegisterInfo *reg_info,
                    const lldb_private::RegisterValue &reg_value);
 
-    // Call CreateInstance to get an instance of this class
-    UnwindAssemblyInstEmulation (const lldb_private::ArchSpec &arch,
-                                 lldb_private::EmulateInstruction *inst_emulator) :
-        UnwindAssembly (arch),
-        m_inst_emulator_ap (inst_emulator),
-        m_range_ptr (NULL),
-        m_thread_ptr (NULL),
-        m_unwind_plan_ptr (NULL),
-        m_curr_row (),
-        m_cfa_reg_info (),
-        m_fp_is_cfa (false),
-        m_register_values (),
-        m_pushed_regs(),
-        m_curr_row_modified (false),
-        m_forward_branch_offset (0)
-    {
-        if (m_inst_emulator_ap.get())
-        {
-            m_inst_emulator_ap->SetBaton (this);
-            m_inst_emulator_ap->SetCallbacks (ReadMemory, WriteMemory, ReadRegister, WriteRegister);
-        }
-    }
-
     static uint64_t 
     MakeRegisterKindValuePair (const lldb_private::RegisterInfo &reg_info);
     
diff --git a/source/Plugins/UnwindAssembly/x86/UnwindAssembly-x86.h b/source/Plugins/UnwindAssembly/x86/UnwindAssembly-x86.h
index 8a4fe7c09800c..4d43a6e02b731 100644
--- a/source/Plugins/UnwindAssembly/x86/UnwindAssembly-x86.h
+++ b/source/Plugins/UnwindAssembly/x86/UnwindAssembly-x86.h
@@ -1,4 +1,4 @@
-//===-- UnwindAssembly-x86.h -------------------------------------*- C++ -*-===//
+//===-- UnwindAssembly-x86.h ------------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -10,42 +10,44 @@
 #ifndef liblldb_UnwindAssembly_x86_h_
 #define liblldb_UnwindAssembly_x86_h_
 
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
 #include "llvm-c/Disassembler.h"
 
+// Project includes
 #include "lldb/lldb-private.h"
 #include "lldb/Target/UnwindAssembly.h"
 
 class UnwindAssembly_x86 : public lldb_private::UnwindAssembly
 {
 public:
+    ~UnwindAssembly_x86() override;
 
-    ~UnwindAssembly_x86 ();
+    bool
+    GetNonCallSiteUnwindPlanFromAssembly(lldb_private::AddressRange& func,
+                                         lldb_private::Thread& thread,
+                                         lldb_private::UnwindPlan& unwind_plan) override;
 
-    virtual bool
-    GetNonCallSiteUnwindPlanFromAssembly (lldb_private::AddressRange& func, 
-                                          lldb_private::Thread& thread, 
-                                          lldb_private::UnwindPlan& unwind_plan);
+    bool
+    AugmentUnwindPlanFromCallSite(lldb_private::AddressRange& func,
+                                  lldb_private::Thread& thread,
+                                  lldb_private::UnwindPlan& unwind_plan) override;
 
-    virtual bool
-    AugmentUnwindPlanFromCallSite (lldb_private::AddressRange& func,
-                                   lldb_private::Thread& thread,
-                                   lldb_private::UnwindPlan& unwind_plan);
-
-    virtual bool
-    GetFastUnwindPlan (lldb_private::AddressRange& func, 
-                       lldb_private::Thread& thread, 
-                       lldb_private::UnwindPlan &unwind_plan);
+    bool
+    GetFastUnwindPlan(lldb_private::AddressRange& func,
+                      lldb_private::Thread& thread,
+                      lldb_private::UnwindPlan &unwind_plan) override;
 
     // thread may be NULL in which case we only use the Target (e.g. if this is called pre-process-launch).
-    virtual bool
-    FirstNonPrologueInsn (lldb_private::AddressRange& func, 
-                          const lldb_private::ExecutionContext &exe_ctx,
-                          lldb_private::Address& first_non_prologue_insn);
+    bool
+    FirstNonPrologueInsn(lldb_private::AddressRange& func,
+                         const lldb_private::ExecutionContext &exe_ctx,
+                         lldb_private::Address& first_non_prologue_insn) override;
 
     static lldb_private::UnwindAssembly *
     CreateInstance (const lldb_private::ArchSpec &arch);
 
-
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------
@@ -61,11 +63,11 @@ public:
     static const char *
     GetPluginDescriptionStatic();
 
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
     
-    virtual uint32_t
-    GetPluginVersion();
+    uint32_t
+    GetPluginVersion() override;
     
 private:
     UnwindAssembly_x86 (const lldb_private::ArchSpec &arch, int cpu);
@@ -74,5 +76,4 @@ private:
     lldb_private::ArchSpec m_arch;
 };
 
-
 #endif // liblldb_UnwindAssembly_x86_h_