/* Definitions for AMD x86-64 running Linux-based GNU systems with ELF format.
- Copyright (C) 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+ Copyright (C) 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
Contributed by Jan Hubicka <jh@suse.cz>, based on linux.h.
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
-#if TARGET_64BIT_DEFAULT
-#define TARGET_VERSION fprintf (stderr, " (x86-64 Linux/ELF)");
-#else
-#define TARGET_VERSION fprintf (stderr, " (i386 Linux/ELF)");
-#endif
-
-#define TARGET_OS_CPP_BUILTINS() \
- do \
- { \
- LINUX_TARGET_OS_CPP_BUILTINS(); \
- } \
- while (0)
-
-#undef CPP_SPEC
-#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
-
-/* The svr4 ABI for the i386 says that records and unions are returned
- in memory. In the 64bit compilation we will turn this flag off in
- ix86_option_override_internal, as we never do pcc_struct_return
- scheme on this target. */
-#undef DEFAULT_PCC_STRUCT_RETURN
-#define DEFAULT_PCC_STRUCT_RETURN 1
-
-/* We arrange for the whole %fs segment to map the tls area. */
-#undef TARGET_TLS_DIRECT_SEG_REFS_DEFAULT
-#define TARGET_TLS_DIRECT_SEG_REFS_DEFAULT MASK_TLS_DIRECT_SEG_REFS
-
-/* Provide a LINK_SPEC. Here we provide support for the special GCC
- options -static and -shared, which allow us to link things in one
- of these three modes by applying the appropriate combinations of
- options at link-time.
-
- When the -shared link option is used a final link is not being
- done. */
+#define GNU_USER_LINK_EMULATION32 "elf_i386"
+#define GNU_USER_LINK_EMULATION64 "elf_x86_64"
+#define GNU_USER_LINK_EMULATIONX32 "elf32_x86_64"
#define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"
-
-#if TARGET_64BIT_DEFAULT
-#define SPEC_32 "m32"
-#define SPEC_64 "!m32"
-#else
-#define SPEC_32 "!m64"
-#define SPEC_64 "m64"
-#endif
-
-#undef ASM_SPEC
-#define ASM_SPEC "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} \
- %{Wa,*:%*} %{" SPEC_32 ":--32} %{" SPEC_64 ":--64} \
- %{!mno-sse2avx:%{mavx:-msse2avx}} %{msse2avx:%{!mavx:-msse2avx}}"
-
-#undef LINK_SPEC
-#define LINK_SPEC "%{" SPEC_64 ":-m elf_x86_64} %{" SPEC_32 ":-m elf_i386} \
- %{shared:-shared} \
- %{!shared: \
- %{!static: \
- %{rdynamic:-export-dynamic} \
- %{" SPEC_32 ":%{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER32 "}} \
- %{" SPEC_64 ":%{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER64 "}}} \
- %{static:-static}}"
-
-/* Similar to standard Linux, but adding -ffast-math support. */
-#undef ENDFILE_SPEC
-#define ENDFILE_SPEC \
- "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
- %{mpc32:crtprec32.o%s} \
- %{mpc64:crtprec64.o%s} \
- %{mpc80:crtprec80.o%s} \
- %{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
-
-#if TARGET_64BIT_DEFAULT
-#define MULTILIB_DEFAULTS { "m64" }
-#else
-#define MULTILIB_DEFAULTS { "m32" }
-#endif
-
-/* Put all *tf routines in libgcc. */
-#undef LIBGCC2_HAS_TF_MODE
-#define LIBGCC2_HAS_TF_MODE 1
-#define LIBGCC2_TF_CEXT q
-#define TF_SIZE 113
-
-#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
-
-#define MD_UNWIND_SUPPORT "config/i386/linux-unwind.h"
-
-/* The stack pointer needs to be moved while checking the stack. */
-#define STACK_CHECK_MOVING_SP 1
-
-/* Static stack checking is supported by means of probes. */
-#define STACK_CHECK_STATIC_BUILTIN 1
-
-/* This macro may be overridden in i386/k*bsd-gnu.h. */
-#define REG_NAME(reg) reg
-
-#ifdef TARGET_LIBC_PROVIDES_SSP
-/* i386 glibc provides __stack_chk_guard in %gs:0x14,
- x86_64 glibc provides it in %fs:0x28. */
-#define TARGET_THREAD_SSP_OFFSET (TARGET_64BIT ? 0x28 : 0x14)
-
-/* We steal the last transactional memory word. */
-#define TARGET_CAN_SPLIT_STACK
-#define TARGET_THREAD_SPLIT_STACK_OFFSET (TARGET_64BIT ? 0x70 : 0x30)
-#endif
+#define GLIBC_DYNAMIC_LINKERX32 "/libx32/ld-linux-x32.so.2"
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