gcc/config/freebsd.h

   1 /* Base configuration file for all FreeBSD targets.
   2    Copyright (C) 1999, 2000, 2001, 2007 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 3, or (at your option)
   9 any later version.
  10
  11 GCC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 /* Common FreeBSD configuration.
  21    All FreeBSD architectures should include this file, which will specify
  22    their commonalities.
  23    Adapted from gcc/config/i386/freebsd-elf.h by
  24    David O'Brien <obrien@FreeBSD.org>.
  25    Further work by David O'Brien <obrien@FreeBSD.org> and
  26    Loren J. Rittle <ljrittle@acm.org>.  */
  27
  28
  29 /* In case we need to know.  */
  30 #define USING_CONFIG_FREEBSD 1
  31
  32 /* This defines which switch letters take arguments.  On FreeBSD, most of
  33    the normal cases (defined in gcc.c) apply, and we also have -h* and
  34    -z* options (for the linker) (coming from SVR4).
  35    We also have -R (alias --rpath), no -z, --soname (-h), --assert etc.  */
  36
  37 #undef  SWITCH_TAKES_ARG
  38 #define SWITCH_TAKES_ARG(CHAR) (FBSD_SWITCH_TAKES_ARG(CHAR))
  39
  40 #undef  WORD_SWITCH_TAKES_ARG
  41 #define WORD_SWITCH_TAKES_ARG(STR) (FBSD_WORD_SWITCH_TAKES_ARG(STR))
  42
  43 #undef  TARGET_OS_CPP_BUILTINS
  44 #define TARGET_OS_CPP_BUILTINS() FBSD_TARGET_OS_CPP_BUILTINS()
  45
  46 #undef  CPP_SPEC
  47 #define CPP_SPEC FBSD_CPP_SPEC
  48
  49 #undef  STARTFILE_SPEC
  50 #define STARTFILE_SPEC FBSD_STARTFILE_SPEC
  51
  52 #undef  ENDFILE_SPEC
  53 #define ENDFILE_SPEC FBSD_ENDFILE_SPEC
  54
  55 #undef  LIB_SPEC
  56 #define LIB_SPEC FBSD_LIB_SPEC
  57
  58
  59 /************************[  Target stuff  ]***********************************/
  60
  61 /* All FreeBSD Architectures support the ELF object file format.  */
  62 #undef  OBJECT_FORMAT_ELF
  63 #define OBJECT_FORMAT_ELF
  64
  65 /* Don't assume anything about the header files.  */
  66 #undef  NO_IMPLICIT_EXTERN_C
  67 #define NO_IMPLICIT_EXTERN_C    1
  68
  69 /* Make gcc agree with FreeBSD's standard headers (<machine/ansi.h>, etc...)  */
  70
  71 #undef  WCHAR_TYPE
  72 #define WCHAR_TYPE "int"
  73
  74 #define MATH_LIBRARY_PROFILE    "-lm_p"
  75
  76 /* Code generation parameters.  */
  77
  78 /* Use periods rather than dollar signs in special g++ assembler names.
  79    This ensures the configuration knows our system correctly so we can link
  80    with libraries compiled with the native cc.  */
  81 #undef NO_DOLLAR_IN_LABEL
  82
  83 /* Used by libgcc2.c.  We support file locking with fcntl / F_SETLKW.
  84    This enables the test coverage code to use file locking when exiting a
  85    program, which avoids race conditions if the program has forked.  */
  86 #define TARGET_POSIX_IO