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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [config/] [i386/] [linux64.h] - Rev 316
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/* Definitions for AMD x86-64 running Linux-based GNU systems with ELF format. Copyright (C) 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. Contributed by Jan Hubicka <jh@suse.cz>, based on linux.h. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; 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 override_options, 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 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 /* 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) #endif
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