vendor/lldb/lldb-r241361

1 files changed, 87 insertions, 0 deletions

diff --git a/source/Plugins/Process/Utility/RegisterContextLinux_arm.cpp b/source/Plugins/Process/Utility/RegisterContextLinux_arm.cpp
new file mode 100644
index 0000000000000..e7784b1712c34
--- /dev/null
+++ b/source/Plugins/Process/Utility/RegisterContextLinux_arm.cpp
@@ -0,0 +1,87 @@
+//===-- RegisterContextLinux_arm.cpp ---------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===---------------------------------------------------------------------===//
+
+#include <stddef.h>
+#include <vector>
+#include <cassert>
+
+#include "llvm/Support/Compiler.h"
+#include "lldb/lldb-defines.h"
+
+#include "RegisterContextLinux_arm.h"
+
+using namespace lldb;
+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 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)))
+
+#define DEFINE_DBG(reg, i)  #reg, NULL, sizeof(((RegisterContextLinux_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 REG_CONTEXT_SIZE (sizeof (RegisterContextLinux_arm::GPR) + sizeof (RegisterContextLinux_arm::FPU) + sizeof (RegisterContextLinux_arm::EXC))
+
+//-----------------------------------------------------------------------------
+// Include RegisterInfos_arm to declare our g_register_infos_arm structure.
+//-----------------------------------------------------------------------------
+#define DECLARE_REGISTER_INFOS_ARM_STRUCT
+#include "RegisterInfos_arm.h"
+#undef DECLARE_REGISTER_INFOS_ARM_STRUCT
+
+static const lldb_private::RegisterInfo *
+GetRegisterInfoPtr (const lldb_private::ArchSpec &target_arch)
+{
+    switch (target_arch.GetMachine())
+    {
+        case llvm::Triple::arm:
+            return g_register_infos_arm;
+        default:
+            assert(false && "Unhandled target architecture.");
+            return NULL;
+    }
+}
+
+static uint32_t
+GetRegisterInfoCount(const lldb_private::ArchSpec &target_arch)
+{
+    switch (target_arch.GetMachine())
+    {
+        case llvm::Triple::arm:
+            return static_cast<uint32_t>(sizeof(g_register_infos_arm) / sizeof(g_register_infos_arm[0]));
+        default:
+            assert(false && "Unhandled target architecture.");
+            return 0;
+    }
+}
+
+RegisterContextLinux_arm::RegisterContextLinux_arm(const lldb_private::ArchSpec &target_arch) :
+    lldb_private::RegisterInfoInterface(target_arch),
+    m_register_info_p(GetRegisterInfoPtr(target_arch)),
+    m_register_info_count(GetRegisterInfoCount(target_arch))
+{
+}
+
+size_t
+RegisterContextLinux_arm::GetGPRSize() const
+{
+    return sizeof(struct RegisterContextLinux_arm::GPR);
+}
+
+const lldb_private::RegisterInfo *
+RegisterContextLinux_arm::GetRegisterInfo() const
+{
+    return m_register_info_p;
+}
+
+uint32_t
+RegisterContextLinux_arm::GetRegisterCount() const
+{
+    return m_register_info_count;
+}