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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [config/] [arm/] [linux-elf.h] - Blame information for rev 282

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1 282 jeremybenn
/* Definitions for ARM running Linux-based GNU systems using ELF
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   Copyright (C) 1993, 1994, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
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   2005, 2006, 2007, 2008
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   Free Software Foundation, Inc.
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   Contributed by Philip Blundell <philb@gnu.org>
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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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/* elfos.h should have already been included.  Now just override
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   any conflicting definitions and add any extras.  */
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/* Run-time Target Specification.  */
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#undef  TARGET_VERSION
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#define TARGET_VERSION  fputs (" (ARM GNU/Linux with ELF)", stderr);
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#undef  TARGET_DEFAULT_FLOAT_ABI
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#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
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/* TARGET_BIG_ENDIAN_DEFAULT is set in
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   config.gcc for big endian configurations.  */
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#if TARGET_BIG_ENDIAN_DEFAULT
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#define TARGET_ENDIAN_DEFAULT    MASK_BIG_END
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#define TARGET_ENDIAN_OPTION     "mbig-endian"
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#define TARGET_LINKER_EMULATION  "armelfb_linux"
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#else
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#define TARGET_ENDIAN_DEFAULT    0
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#define TARGET_ENDIAN_OPTION     "mlittle-endian"
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#define TARGET_LINKER_EMULATION  "armelf_linux"
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#endif
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#undef  TARGET_DEFAULT
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#define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT)
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#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
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#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"
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#undef  MULTILIB_DEFAULTS
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#define MULTILIB_DEFAULTS \
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        { "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" }
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/* Now we define the strings used to build the spec file.  */
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#undef  LIB_SPEC
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#define LIB_SPEC \
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  "%{pthread:-lpthread} \
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   %{shared:-lc} \
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   %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
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#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
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#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
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#define LINUX_TARGET_LINK_SPEC  "%{h*} %{version:-v} \
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   %{b} \
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   %{static:-Bstatic} \
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   %{shared:-shared} \
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   %{symbolic:-Bsymbolic} \
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   %{rdynamic:-export-dynamic} \
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   %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "} \
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   -X \
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   %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
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   SUBTARGET_EXTRA_LINK_SPEC
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#undef  LINK_SPEC
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#define LINK_SPEC LINUX_TARGET_LINK_SPEC
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#define TARGET_OS_CPP_BUILTINS()                \
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  do                                            \
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    {                                           \
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        LINUX_TARGET_OS_CPP_BUILTINS();         \
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    }                                           \
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  while (0)
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/* This is how we tell the assembler that two symbols have the same value.  */
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#define ASM_OUTPUT_DEF(FILE, NAME1, NAME2) \
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  do                                       \
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    {                                      \
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      assemble_name (FILE, NAME1);         \
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      fputs (" = ", FILE);                 \
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      assemble_name (FILE, NAME2);         \
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      fputc ('\n', FILE);                  \
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    }                                      \
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  while (0)
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/* NWFPE always understands FPA instructions.  */
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#undef  FPUTYPE_DEFAULT
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#define FPUTYPE_DEFAULT "fpe3"
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/* Call the function profiler with a given profile label.  */
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#undef  ARM_FUNCTION_PROFILER
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#define ARM_FUNCTION_PROFILER(STREAM, LABELNO)                          \
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{                                                                       \
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  fprintf (STREAM, "\tbl\tmcount%s\n",                                  \
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           (TARGET_ARM && NEED_PLT_RELOC) ? "(PLT)" : "");              \
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}
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/* The GNU/Linux profiler clobbers the link register.  Make sure the
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   prologue knows to save it.  */
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#define PROFILE_HOOK(X)                                         \
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  emit_clobber (gen_rtx_REG (SImode, LR_REGNUM))
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/* The GNU/Linux profiler needs a frame pointer.  */
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#define SUBTARGET_FRAME_POINTER_REQUIRED crtl->profile
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/* Add .note.GNU-stack.  */
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#undef NEED_INDICATE_EXEC_STACK
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#define NEED_INDICATE_EXEC_STACK        1

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