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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, 2011
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(); \
ANDROID_TARGET_OS_CPP_BUILTINS(); \
} \
while (0)
#undef CPP_SPEC
#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
#define LINUX_TARGET_CC1_SPEC "%(cc1_cpu) %{profile:-p}"
#undef CC1_SPEC
#define CC1_SPEC \
LINUX_OR_ANDROID_CC (LINUX_TARGET_CC1_SPEC, \
LINUX_TARGET_CC1_SPEC " " ANDROID_CC1_SPEC)
/* 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. */
#ifndef RUNTIME_ROOT_PREFIX
#define RUNTIME_ROOT_PREFIX ""
#endif
#define GLIBC_DYNAMIC_LINKER32 RUNTIME_ROOT_PREFIX "/lib/ld-linux.so.2"
#define GLIBC_DYNAMIC_LINKER64 RUNTIME_ROOT_PREFIX "/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 "%{" SPEC_32 ":--32} %{" SPEC_64 ":--64} \
%{!mno-sse2avx:%{mavx:-msse2avx}} %{msse2avx:%{!mavx:-msse2avx}}"
#define LINUX_TARGET_LINK_SPEC \
"%{" SPEC_64 ":-m elf_x86_64} %{" SPEC_32 ":-m elf_i386} \
%{shared:-shared} \
%{!shared: \
%{!static: \
%{rdynamic:-export-dynamic} \
%{" SPEC_32 ":-dynamic-linker " LINUX_DYNAMIC_LINKER32 "} \
%{" SPEC_64 ":-dynamic-linker " LINUX_DYNAMIC_LINKER64 "}} \
%{static:-static}}"
#undef LINK_SPEC
#define LINK_SPEC \
LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC, \
LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)
#undef LIB_SPEC
#define LIB_SPEC \
LINUX_OR_ANDROID_LD (GNU_USER_TARGET_LIB_SPEC, \
GNU_USER_TARGET_LIB_SPEC_LESS_PTHREAD " " ANDROID_LIB_SPEC)
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
LINUX_OR_ANDROID_LD (GNU_USER_TARGET_STARTFILE_SPEC, \
ANDROID_STARTFILE_SPEC)
/* These may be provided by config/linux-grtev2.h. */
#ifndef LINUX_GRTE_EXTRA_SPECS
#define LINUX_GRTE_EXTRA_SPECS
#endif
#undef SUBTARGET_EXTRA_SPECS
#define SUBTARGET_EXTRA_SPECS \
LINUX_GRTE_EXTRA_SPECS
/* Similar to standard Linux, but adding -ffast-math support. */
#define LINUX_TARGET_ENDFILE_SPEC \
"%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
%{mpc32:crtprec32.o%s} \
%{mpc64:crtprec64.o%s} \
%{mpc80:crtprec80.o%s}"
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
LINUX_OR_ANDROID_LD (LINUX_TARGET_ENDFILE_SPEC " " \
GNU_USER_TARGET_ENDFILE_SPEC, \
LINUX_TARGET_ENDFILE_SPEC " "\
ANDROID_ENDFILE_SPEC)
#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
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