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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [config/] [sparc/] [linux.h] - Blame information for rev 709

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1 709 jeremybenn
/* Definitions for SPARC running Linux-based GNU systems with ELF.
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   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006,
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   2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
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   Contributed by Eddie C. Dost (ecd@skynet.be)
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3.  If not see
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<http://www.gnu.org/licenses/>.  */
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#define TARGET_OS_CPP_BUILTINS()                \
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  do                                            \
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    {                                           \
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      GNU_USER_TARGET_OS_CPP_BUILTINS();        \
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      if (TARGET_LONG_DOUBLE_128)               \
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        builtin_define ("__LONG_DOUBLE_128__"); \
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    }                                           \
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  while (0)
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/* Provide a ENDFILE_SPEC appropriate for GNU/Linux.  Here we tack on
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   the GNU/Linux magical crtend.o file (see crtstuff.c) which
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   provides part of the support for getting C++ file-scope static
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   object constructed before entering `main', followed by a normal
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   GNU/Linux "finalizer" file, `crtn.o'.  */
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#undef  ENDFILE_SPEC
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#define ENDFILE_SPEC \
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  "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s\
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   %{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
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/* -mcpu=native handling only makes sense with compiler running on
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   a SPARC chip.  */
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#if defined(__sparc__) && defined(__linux__)
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extern const char *host_detect_local_cpu (int argc, const char **argv);
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# define EXTRA_SPEC_FUNCTIONS                                           \
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  { "local_cpu_detect", host_detect_local_cpu },
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# define MCPU_MTUNE_NATIVE_SPECS                                        \
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   " %{mcpu=native:%<mcpu=native %:local_cpu_detect(cpu)}"              \
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   " %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}"
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#else
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# define MCPU_MTUNE_NATIVE_SPECS ""
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#endif
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#define DRIVER_SELF_SPECS MCPU_MTUNE_NATIVE_SPECS
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/* This is for -profile to use -lc_p instead of -lc.  */
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#undef  CC1_SPEC
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#define CC1_SPEC "%{profile:-p} \
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"
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#undef SIZE_TYPE
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#define SIZE_TYPE "unsigned int"
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "int"
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#undef WCHAR_TYPE
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#define WCHAR_TYPE "int"
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE 32
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#undef CPP_SUBTARGET_SPEC
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#define CPP_SUBTARGET_SPEC \
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"%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
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/* Provide a LINK_SPEC appropriate for GNU/Linux.  Here we provide support
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   for the special GCC options -static and -shared, which allow us to
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   link things in one of these three modes by applying the appropriate
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   combinations of options at link-time.
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   When the -shared link option is used a final link is not being
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   done.  */
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#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
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#undef  LINK_SPEC
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#define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
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  %{!mno-relax:%{!r:-relax}} \
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  %{!shared: \
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    %{!static: \
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      %{rdynamic:-export-dynamic} \
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      -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
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      %{static:-static}}"
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/* It's safe to pass -s always, even if -g is not used.  */
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#undef ASM_SPEC
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#define ASM_SPEC "\
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-s \
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%{fpic|fPIC|fpie|fPIE:-K PIC} \
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%{!.c:%{findirect-dispatch:-K PIC}} \
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%(asm_cpu) %(asm_relax)"
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#undef ASM_OUTPUT_ALIGNED_LOCAL
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#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN)               \
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do {                                                                    \
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  fputs ("\t.local\t", (FILE));         \
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  assemble_name ((FILE), (NAME));                                       \
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  putc ('\n', (FILE));                                                  \
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  ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN);                  \
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} while (0)
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#undef COMMON_ASM_OP
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#define COMMON_ASM_OP "\t.common\t"
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#undef  LOCAL_LABEL_PREFIX
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#define LOCAL_LABEL_PREFIX  "."
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/* Define for support of TFmode long double.
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   SPARC ABI says that long double is 4 words.  */
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#define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
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/* Define this to set long double type size to use in libgcc2.c, which can
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   not depend on target_flags.  */
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#ifdef __LONG_DOUBLE_128__
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#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
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#else
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#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
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#endif
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#undef DITF_CONVERSION_LIBFUNCS
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#define DITF_CONVERSION_LIBFUNCS 1
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#ifdef HAVE_AS_TLS
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#undef TARGET_SUN_TLS
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#undef TARGET_GNU_TLS
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#define TARGET_SUN_TLS 0
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#define TARGET_GNU_TLS 1
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#endif
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/* We use GNU ld so undefine this so that attribute((init_priority)) works.  */
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#undef CTORS_SECTION_ASM_OP
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#undef DTORS_SECTION_ASM_OP
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/* Static stack checking is supported by means of probes.  */
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#define STACK_CHECK_STATIC_BUILTIN 1
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/* Linux currently uses RMO in uniprocessor mode, which is equivalent to
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   TMO, and TMO in multiprocessor mode.  But they reserve the right to
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   change their minds.  */
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#undef SPARC_RELAXED_ORDERING
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#define SPARC_RELAXED_ORDERING true
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#undef NEED_INDICATE_EXEC_STACK
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#define NEED_INDICATE_EXEC_STACK 1
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#ifdef TARGET_LIBC_PROVIDES_SSP
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/* sparc glibc provides __stack_chk_guard in [%g7 + 0x14].  */
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#define TARGET_THREAD_SSP_OFFSET        0x14
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#endif
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/* Define if long doubles should be mangled as 'g'.  */
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#define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING
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/* We use glibc _mcount for profiling.  */
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#undef NO_PROFILE_COUNTERS
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#define NO_PROFILE_COUNTERS     1

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