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Diffstat (limited to 'contrib/gcc/config/sparc/linux64.h')
-rw-r--r--contrib/gcc/config/sparc/linux64.h232
1 files changed, 63 insertions, 169 deletions
diff --git a/contrib/gcc/config/sparc/linux64.h b/contrib/gcc/config/sparc/linux64.h
index bb1c591fc3895..b0ddf4b3d3bea 100644
--- a/contrib/gcc/config/sparc/linux64.h
+++ b/contrib/gcc/config/sparc/linux64.h
@@ -1,5 +1,5 @@
/* Definitions for 64-bit SPARC running Linux-based GNU systems with ELF.
- Copyright 1996, 1997, 1998, 2000, 2002, 2003, 2004
+ Copyright 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
Contributed by David S. Miller (davem@caip.rutgers.edu)
@@ -17,20 +17,22 @@ GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#define TARGET_OS_CPP_BUILTINS() \
- do \
- { \
- builtin_define_std ("unix"); \
- builtin_define_std ("linux"); \
- builtin_define ("_LONGLONG"); \
- builtin_define ("__gnu_linux__"); \
- builtin_assert ("system=linux"); \
- builtin_assert ("system=unix"); \
- builtin_assert ("system=posix"); \
- } \
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
+
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ builtin_define_std ("unix"); \
+ builtin_define_std ("linux"); \
+ builtin_define ("_LONGLONG"); \
+ builtin_define ("__gnu_linux__"); \
+ builtin_assert ("system=linux"); \
+ builtin_assert ("system=unix"); \
+ builtin_assert ("system=posix"); \
+ if (TARGET_ARCH32 && TARGET_LONG_DOUBLE_128) \
+ builtin_define ("__LONG_DOUBLE_128__"); \
+ } \
while (0)
/* Don't assume anything about the header files. */
@@ -41,7 +43,8 @@ Boston, MA 02111-1307, USA. */
#if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
|| TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc \
- || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc3
+ || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc3 \
+ || TARGET_CPU_DEFAULT == TARGET_CPU_niagara
/* A 64 bit v9 compiler with stack-bias,
in a Medium/Low code model environment. */
@@ -54,13 +57,6 @@ Boston, MA 02111-1307, USA. */
#undef ASM_CPU_DEFAULT_SPEC
#define ASM_CPU_DEFAULT_SPEC "-Av9a"
-#ifdef SPARC_BI_ARCH
-
-#undef CPP_ARCH32_SPEC
-#define CPP_ARCH32_SPEC "%{mlong-double-128:-D__LONG_DOUBLE_128__}"
-
-#endif
-
/* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add
the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
provides part of the support for getting C++ file-scope static
@@ -101,11 +97,6 @@ Boston, MA 02111-1307, USA. */
#undef SPARC_DEFAULT_CMODEL
#define SPARC_DEFAULT_CMODEL CM_MEDLOW
-#undef SUBTARGET_SWITCHES
-#define SUBTARGET_SWITCHES \
-{"long-double-64", -MASK_LONG_DOUBLE_128, N_("Use 64 bit long doubles") }, \
-{"long-double-128", MASK_LONG_DOUBLE_128, N_("Use 128 bit long doubles") },
-
#undef WCHAR_TYPE
#define WCHAR_TYPE "int"
@@ -117,10 +108,6 @@ Boston, MA 02111-1307, USA. */
#undef LONG_DOUBLE_TYPE_SIZE
#define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
-/* Constant which presents upper bound of the above value. */
-#undef MAX_LONG_DOUBLE_TYPE_SIZE
-#define MAX_LONG_DOUBLE_TYPE_SIZE 128
-
/* Define this to set long double type size to use in libgcc2.c, which can
not depend on target_flags. */
#if defined(__arch64__) || defined(__LONG_DOUBLE_128__)
@@ -131,7 +118,6 @@ Boston, MA 02111-1307, USA. */
#undef CPP_SUBTARGET_SPEC
#define CPP_SUBTARGET_SPEC "\
-%{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} \
%{posix:-D_POSIX_SOURCE} \
%{pthread:-D_REENTRANT} \
"
@@ -158,6 +144,20 @@ Boston, MA 02111-1307, USA. */
/* If ELF is the default format, we should not use /lib/elf. */
+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
+#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux.so.2"
+#define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
+#define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
+#if UCLIBC_DEFAULT
+#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:%{muclibc:%e-mglibc and -muclibc used together}" G ";:" U "}"
+#else
+#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:%{mglibc:%e-mglibc and -muclibc used together}" U ";:" G "}"
+#endif
+#define LINUX_DYNAMIC_LINKER32 \
+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32)
+#define LINUX_DYNAMIC_LINKER64 \
+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64)
+
#ifdef SPARC_BI_ARCH
#undef SUBTARGET_EXTRA_SPECS
@@ -166,13 +166,13 @@ Boston, MA 02111-1307, USA. */
{ "link_arch64", LINK_ARCH64_SPEC }, \
{ "link_arch_default", LINK_ARCH_DEFAULT_SPEC }, \
{ "link_arch", LINK_ARCH_SPEC },
-
+
#define LINK_ARCH32_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
%{!shared: \
%{!ibcs: \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER32 "}} \
%{static:-static}}} \
"
@@ -181,7 +181,7 @@ Boston, MA 02111-1307, USA. */
%{!ibcs: \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER64 "}} \
%{static:-static}}} \
"
@@ -262,7 +262,7 @@ Boston, MA 02111-1307, USA. */
%{!ibcs: \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER64 "}} \
%{static:-static}}} \
%{mlittle-endian:-EL} \
%{!mno-relax:%{!r:-relax}} \
@@ -289,9 +289,6 @@ Boston, MA 02111-1307, USA. */
#undef DBX_REGISTER_NUMBER
#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
-#define DWARF2_DEBUGGING_INFO 1
-#define DBX_DEBUGGING_INFO 1
-
#undef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
do { \
@@ -307,13 +304,6 @@ do { \
#undef LOCAL_LABEL_PREFIX
#define LOCAL_LABEL_PREFIX "."
-/* This is how to output a reference to an internal numbered label where
- PREFIX is the class of label and NUM is the number within the class. */
-
-#undef ASM_OUTPUT_INTERNAL_LABELREF
-#define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM) \
- fprintf (FILE, ".L%s%d", PREFIX, NUM)
-
/* This is how to store into the string LABEL
the symbol_ref name of an internal numbered label where
PREFIX is the class of label and NUM is the number within the class.
@@ -353,133 +343,37 @@ do { \
#undef CTORS_SECTION_ASM_OP
#undef DTORS_SECTION_ASM_OP
-#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
-
-/* Determine whether the the entire c99 runtime is present in the
+/* Determine whether the entire c99 runtime is present in the
runtime library. */
-#define TARGET_C99_FUNCTIONS 1
+#define TARGET_C99_FUNCTIONS (OPTION_GLIBC)
-#define TARGET_HAS_F_SETLKW
+#define TARGET_POSIX_IO
#undef LINK_GCC_C_SEQUENCE_SPEC
#define LINK_GCC_C_SEQUENCE_SPEC \
"%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
-/* Do code reading to identify a signal frame, and set the frame
- state data appropriately. See unwind-dw2.c for the structs. */
-
-/* Handle multilib correctly. */
-#if defined(__arch64__)
-/* 64-bit SPARC version */
-#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \
- do { \
- unsigned int *pc_ = (CONTEXT)->ra; \
- long new_cfa_, i_; \
- long regs_off_, fpu_save_off_; \
- long this_cfa_, fpu_save_; \
- \
- if (pc_[0] != 0x82102065 /* mov NR_rt_sigreturn, %g1 */ \
- || pc_[1] != 0x91d0206d) /* ta 0x6d */ \
- break; \
- regs_off_ = 192 + 128; \
- fpu_save_off_ = regs_off_ + (16 * 8) + (3 * 8) + (2 * 4); \
- this_cfa_ = (long) (CONTEXT)->cfa; \
- new_cfa_ = *(long *)(((CONTEXT)->cfa) + (regs_off_ + (14 * 8))); \
- new_cfa_ += 2047; /* Stack bias */ \
- fpu_save_ = *(long *)((this_cfa_) + (fpu_save_off_)); \
- (FS)->cfa_how = CFA_REG_OFFSET; \
- (FS)->cfa_reg = 14; \
- (FS)->cfa_offset = new_cfa_ - (long) (CONTEXT)->cfa; \
- for (i_ = 1; i_ < 16; ++i_) \
- { \
- (FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[i_].loc.offset = \
- this_cfa_ + (regs_off_ + (i_ * 8)) - new_cfa_; \
- } \
- for (i_ = 0; i_ < 16; ++i_) \
- { \
- (FS)->regs.reg[i_ + 16].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[i_ + 16].loc.offset = \
- this_cfa_ + (i_ * 8) - new_cfa_; \
- } \
- if (fpu_save_) \
- { \
- for (i_ = 0; i_ < 64; ++i_) \
- { \
- if (i_ > 32 && (i_ & 0x1)) \
- continue; \
- (FS)->regs.reg[i_ + 32].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[i_ + 32].loc.offset = \
- (fpu_save_ + (i_ * 4)) - new_cfa_; \
- } \
- } \
- /* Stick return address into %g0, same trick Alpha uses. */ \
- (FS)->regs.reg[0].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[0].loc.offset = \
- this_cfa_ + (regs_off_ + (16 * 8) + 8) - new_cfa_; \
- (FS)->retaddr_column = 0; \
- goto SUCCESS; \
- } while (0)
-#else
-/* 32-bit SPARC version */
-#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \
- do { \
- unsigned int *pc_ = (CONTEXT)->ra; \
- int new_cfa_, i_, oldstyle_; \
- int regs_off_, fpu_save_off_; \
- int fpu_save_, this_cfa_; \
- \
- if (pc_[1] != 0x91d02010) /* ta 0x10 */ \
- break; \
- if (pc_[0] == 0x821020d8) /* mov NR_sigreturn, %g1 */ \
- oldstyle_ = 1; \
- else if (pc_[0] == 0x82102065) /* mov NR_rt_sigreturn, %g1 */ \
- oldstyle_ = 0; \
- else \
- break; \
- if (oldstyle_) \
- { \
- regs_off_ = 96; \
- fpu_save_off_ = regs_off_ + (4 * 4) + (16 * 4); \
- } \
- else \
- { \
- regs_off_ = 96 + 128; \
- fpu_save_off_ = regs_off_ + (4 * 4) + (16 * 4) + (2 * 4); \
- } \
- this_cfa_ = (int) (CONTEXT)->cfa; \
- new_cfa_ = *(int *)(((CONTEXT)->cfa) + (regs_off_+(4*4)+(14 * 4))); \
- fpu_save_ = *(int *)((this_cfa_) + (fpu_save_off_)); \
- (FS)->cfa_how = CFA_REG_OFFSET; \
- (FS)->cfa_reg = 14; \
- (FS)->cfa_offset = new_cfa_ - (int) (CONTEXT)->cfa; \
- for (i_ = 1; i_ < 16; ++i_) \
- { \
- if (i_ == 14) \
- continue; \
- (FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[i_].loc.offset = \
- this_cfa_ + (regs_off_+(4 * 4)+(i_ * 4)) - new_cfa_; \
- } \
- for (i_ = 0; i_ < 16; ++i_) \
- { \
- (FS)->regs.reg[i_ + 16].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[i_ + 16].loc.offset = \
- this_cfa_ + (i_ * 4) - new_cfa_; \
- } \
- if (fpu_save_) \
- { \
- for (i_ = 0; i_ < 32; ++i_) \
- { \
- (FS)->regs.reg[i_ + 32].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[i_ + 32].loc.offset = \
- (fpu_save_ + (i_ * 4)) - new_cfa_; \
- } \
- } \
- /* Stick return address into %g0, same trick Alpha uses. */ \
- (FS)->regs.reg[0].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[0].loc.offset = this_cfa_+(regs_off_+4)-new_cfa_; \
- (FS)->retaddr_column = 0; \
- goto SUCCESS; \
- } while (0)
+/* Use --as-needed -lgcc_s for eh support. */
+#ifdef HAVE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 1
#endif
+
+#define MD_UNWIND_SUPPORT "config/sparc/linux-unwind.h"
+
+/* Linux currently uses RMO in uniprocessor mode, which is equivalent to
+ TMO, and TMO in multiprocessor mode. But they reserve the right to
+ change their minds. */
+#undef SPARC_RELAXED_ORDERING
+#define SPARC_RELAXED_ORDERING true
+
+#undef NEED_INDICATE_EXEC_STACK
+#define NEED_INDICATE_EXEC_STACK 1
+
+#ifdef TARGET_LIBC_PROVIDES_SSP
+/* sparc glibc provides __stack_chk_guard in [%g7 + 0x14],
+ sparc64 glibc provides it at [%g7 + 0x28]. */
+#define TARGET_THREAD_SSP_OFFSET (TARGET_ARCH64 ? 0x28 : 0x14)
+#endif
+
+/* Define if long doubles should be mangled as 'g'. */
+#define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING
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