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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [config/] [rs6000/] [linux.h] - Blame information for rev 709

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Line No. Rev Author Line
1 709 jeremybenn
/* Definitions of target machine for GNU compiler,
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   for PowerPC machines running Linux.
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   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
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   2004, 2005, 2006, 2007, 2010, 2011 Free Software Foundation, Inc.
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   Contributed by Michael Meissner (meissner@cygnus.com).
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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 it
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   under the terms of the GNU General Public License as published
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   by the Free Software Foundation; either version 3, or (at your
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   option) any later version.
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   GCC is distributed in the hope that it will be useful, but WITHOUT
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   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
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   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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/* Linux doesn't support saving and restoring 64-bit regs in a 32-bit
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   process.  */
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#define OS_MISSING_POWERPC64 1
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/* We use glibc _mcount for profiling.  */
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#define NO_PROFILE_COUNTERS 1
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#ifdef SINGLE_LIBC
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#define OPTION_GLIBC  (DEFAULT_LIBC == LIBC_GLIBC)
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#else
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#define OPTION_GLIBC  (linux_libc == LIBC_GLIBC)
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#endif
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/* glibc has float and long double forms of math functions.  */
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#undef  TARGET_C99_FUNCTIONS
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#define TARGET_C99_FUNCTIONS (OPTION_GLIBC)
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/* Whether we have sincos that follows the GNU extension.  */
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#undef  TARGET_HAS_SINCOS
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#define TARGET_HAS_SINCOS (OPTION_GLIBC)
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#undef  TARGET_OS_CPP_BUILTINS
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#define TARGET_OS_CPP_BUILTINS()                \
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  do                                            \
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    {                                           \
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      builtin_define_std ("PPC");               \
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      builtin_define_std ("powerpc");           \
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      builtin_assert ("cpu=powerpc");           \
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      builtin_assert ("machine=powerpc");       \
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      TARGET_OS_SYSV_CPP_BUILTINS ();           \
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    }                                           \
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  while (0)
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#undef  CPP_OS_DEFAULT_SPEC
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#define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)"
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/* The GNU C++ standard library currently requires _GNU_SOURCE being
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   defined on glibc-based systems. This temporary hack accomplishes this,
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   it should go away as soon as libstdc++-v3 has a real fix.  */
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#undef  CPLUSPLUS_CPP_SPEC
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#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
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#undef  LINK_SHLIB_SPEC
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#define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"
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#undef  LIB_DEFAULT_SPEC
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#define LIB_DEFAULT_SPEC "%(lib_linux)"
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#undef  STARTFILE_DEFAULT_SPEC
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#define STARTFILE_DEFAULT_SPEC "%(startfile_linux)"
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#undef  ENDFILE_DEFAULT_SPEC
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#define ENDFILE_DEFAULT_SPEC "%(endfile_linux)"
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#undef  LINK_START_DEFAULT_SPEC
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#define LINK_START_DEFAULT_SPEC "%(link_start_linux)"
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#undef  LINK_OS_DEFAULT_SPEC
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#define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"
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#define LINK_GCC_C_SEQUENCE_SPEC \
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  "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
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/* Use --as-needed -lgcc_s for eh support.  */
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#ifdef HAVE_LD_AS_NEEDED
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#define USE_LD_AS_NEEDED 1
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#endif
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/* Override rs6000.h definition.  */
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#undef  ASM_APP_ON
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#define ASM_APP_ON "#APP\n"
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/* Override rs6000.h definition.  */
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#undef  ASM_APP_OFF
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#define ASM_APP_OFF "#NO_APP\n"
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/* For backward compatibility, we must continue to use the AIX
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   structure return convention.  */
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#undef  DRAFT_V4_STRUCT_RET
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#define DRAFT_V4_STRUCT_RET 1
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/* We are 32-bit all the time, so optimize a little.  */
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#undef TARGET_64BIT
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#define TARGET_64BIT 0
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/* We don't need to generate entries in .fixup, except when
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   -mrelocatable or -mrelocatable-lib is given.  */
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#undef RELOCATABLE_NEEDS_FIXUP
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#define RELOCATABLE_NEEDS_FIXUP \
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  (target_flags & target_flags_explicit & MASK_RELOCATABLE)
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#define TARGET_POSIX_IO
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#ifdef TARGET_LIBC_PROVIDES_SSP
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/* ppc32 glibc provides __stack_chk_guard in -0x7008(2).  */
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#define TARGET_THREAD_SSP_OFFSET        -0x7008
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#endif
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#define POWERPC_LINUX
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/* ppc linux has 128-bit long double support in glibc 2.4 and later.  */
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#ifdef TARGET_DEFAULT_LONG_DOUBLE_128
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#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128
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#endif
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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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