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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [gcc/] [config/] [mips/] [linux.h] - Blame information for rev 154

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/* Definitions for MIPS running Linux-based GNU systems with ELF format.
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   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
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   2007 Free Software Foundation, Inc.
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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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#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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/* If defined, a C expression whose value is a string containing the
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   assembler operation to identify the following data as
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   uninitialized global data.  If not defined, and neither
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   `ASM_OUTPUT_BSS' nor `ASM_OUTPUT_ALIGNED_BSS' are defined,
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   uninitialized global data will be output in the data section if
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   `-fno-common' is passed, otherwise `ASM_OUTPUT_COMMON' will be
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   used.  */
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#define BSS_SECTION_ASM_OP      "\t.section\t.bss"
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#define ASM_OUTPUT_ALIGNED_BSS mips_output_aligned_bss
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#undef ASM_DECLARE_OBJECT_NAME
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#define ASM_DECLARE_OBJECT_NAME mips_declare_object_name
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#undef TARGET_VERSION
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#if TARGET_ENDIAN_DEFAULT == 0
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#define TARGET_VERSION fprintf (stderr, " (MIPSel GNU/Linux with ELF)");
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#else
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#define TARGET_VERSION fprintf (stderr, " (MIPS GNU/Linux with ELF)");
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#endif
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#undef MD_EXEC_PREFIX
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#undef MD_STARTFILE_PREFIX
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/* If we don't set MASK_ABICALLS, we can't default to PIC.  */
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT MASK_ABICALLS
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#define TARGET_OS_CPP_BUILTINS()                                \
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  do {                                                          \
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    LINUX_TARGET_OS_CPP_BUILTINS();                             \
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    /* The GNU C++ standard library requires this.  */          \
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    if (c_dialect_cxx ())                                       \
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      builtin_define ("_GNU_SOURCE");                           \
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                                                                \
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    if (mips_abi == ABI_N32)                                    \
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      {                                                         \
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        builtin_define ("_ABIN32=2");                           \
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        builtin_define ("_MIPS_SIM=_ABIN32");                   \
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        builtin_define ("_MIPS_SZLONG=32");                     \
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        builtin_define ("_MIPS_SZPTR=32");                      \
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      }                                                         \
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    else if (mips_abi == ABI_64)                                \
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      {                                                         \
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        builtin_define ("_ABI64=3");                            \
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        builtin_define ("_MIPS_SIM=_ABI64");                    \
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        builtin_define ("_MIPS_SZLONG=64");                     \
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        builtin_define ("_MIPS_SZPTR=64");                      \
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      }                                                         \
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    else                                                        \
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      {                                                         \
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        builtin_define ("_ABIO32=1");                           \
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        builtin_define ("_MIPS_SIM=_ABIO32");                   \
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        builtin_define ("_MIPS_SZLONG=32");                     \
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        builtin_define ("_MIPS_SZPTR=32");                      \
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      }                                                         \
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    if (TARGET_FLOAT64)                                         \
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      builtin_define ("_MIPS_FPSET=32");                        \
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    else                                                        \
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      builtin_define ("_MIPS_FPSET=16");                        \
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                                                                \
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    builtin_define ("_MIPS_SZINT=32");                          \
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  } while (0)
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#undef SUBTARGET_CPP_SPEC
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#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
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/* A standard GNU/Linux mapping.  On most targets, it is included in
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   CC1_SPEC itself by config/linux.h, but mips.h overrides CC1_SPEC
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   and provides this hook instead.  */
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#undef SUBTARGET_CC1_SPEC
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#define SUBTARGET_CC1_SPEC "%{profile:-p}"
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/* From iris5.h */
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/* -G is incompatible with -KPIC which is the default, so only allow objects
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   in the small data section if the user explicitly asks for it.  */
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#undef MIPS_DEFAULT_GVALUE
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#define MIPS_DEFAULT_GVALUE 0
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#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
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/* Borrowed from sparc/linux.h */
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#undef LINK_SPEC
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#define LINK_SPEC \
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 "%(endian_spec) \
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  %{shared:-shared} \
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  %{!shared: \
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    %{!ibcs: \
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      %{!static: \
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        %{rdynamic:-export-dynamic} \
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        %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \
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        %{static:-static}}}"
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#undef SUBTARGET_ASM_SPEC
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#define SUBTARGET_ASM_SPEC "%{mabi=64: -64} %{!mno-abicalls:-KPIC}"
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/* The MIPS assembler has different syntax for .set. We set it to
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   .dummy to trap any errors.  */
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#undef SET_ASM_OP
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#define SET_ASM_OP "\t.dummy\t"
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#undef ASM_OUTPUT_DEF
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#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2)                              \
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 do {                                                                   \
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        fputc ( '\t', FILE);                                            \
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        assemble_name (FILE, LABEL1);                                   \
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        fputs ( " = ", FILE);                                           \
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        assemble_name (FILE, LABEL2);                                   \
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        fputc ( '\n', FILE);                                            \
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 } while (0)
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#undef ASM_DECLARE_FUNCTION_NAME
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#define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL)                   \
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  do {                                                                  \
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    if (!flag_inhibit_size_directive)                                   \
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      {                                                                 \
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        fputs ("\t.ent\t", STREAM);                                     \
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        assemble_name (STREAM, NAME);                                   \
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        putc ('\n', STREAM);                                            \
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      }                                                                 \
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    ASM_OUTPUT_TYPE_DIRECTIVE (STREAM, NAME, "function");               \
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    assemble_name (STREAM, NAME);                                       \
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    fputs (":\n", STREAM);                                              \
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  } while (0)
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#undef ASM_DECLARE_FUNCTION_SIZE
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#define ASM_DECLARE_FUNCTION_SIZE(STREAM, NAME, DECL)                   \
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  do {                                                                  \
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    if (!flag_inhibit_size_directive)                                   \
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      {                                                                 \
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        fputs ("\t.end\t", STREAM);                                     \
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        assemble_name (STREAM, NAME);                                   \
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        putc ('\n', STREAM);                                            \
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      }                                                                 \
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  } while (0)
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/* Tell function_prologue in mips.c that we have already output the .ent/.end
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   pseudo-ops.  */
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#undef FUNCTION_NAME_ALREADY_DECLARED
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#define FUNCTION_NAME_ALREADY_DECLARED 1
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/* The glibc _mcount stub will save $v0 for us.  Don't mess with saving
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   it, since ASM_OUTPUT_REG_PUSH/ASM_OUTPUT_REG_POP do not work in the
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   presence of $gp-relative calls.  */
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#undef ASM_OUTPUT_REG_PUSH
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#undef ASM_OUTPUT_REG_POP
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#undef LIB_SPEC
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#define LIB_SPEC "\
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%{shared: -lc} \
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%{!shared: %{pthread:-lpthread} \
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  %{profile:-lc_p} %{!profile: -lc}}"
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#define MD_UNWIND_SUPPORT "config/mips/linux-unwind.h"

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