gcc/config/freebsd.h

   1 /* Base configuration file for all FreeBSD targets.
   2    Copyright (C) 1999, 2000, 2001, 2007, 2008, 2009,
   3    2010, 2011, 2012 Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 /* Common FreeBSD configuration.
  22    All FreeBSD architectures should include this file, which will specify
  23    their commonalities.
  24    Adapted from gcc/config/i386/freebsd-elf.h by
  25    David O'Brien <obrien@FreeBSD.org>.
  26    Further work by David O'Brien <obrien@FreeBSD.org> and
  27    Loren J. Rittle <ljrittle@acm.org>.  */
  28
  29
  30 /* In case we need to know.  */
  31 #define USING_CONFIG_FREEBSD 1
  32
  33 #undef  TARGET_OS_CPP_BUILTINS
  34 #define TARGET_OS_CPP_BUILTINS() FBSD_TARGET_OS_CPP_BUILTINS()
  35
  36 #undef  CPP_SPEC
  37 #define CPP_SPEC FBSD_CPP_SPEC
  38
  39 #undef  STARTFILE_SPEC
  40 #define STARTFILE_SPEC FBSD_STARTFILE_SPEC
  41
  42 #undef  ENDFILE_SPEC
  43 #define ENDFILE_SPEC FBSD_ENDFILE_SPEC
  44
  45 #undef  LIB_SPEC
  46 #define LIB_SPEC FBSD_LIB_SPEC
  47
  48 #if defined(HAVE_LD_EH_FRAME_HDR)
  49 #define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
  50 #endif
  51
  52 #ifdef TARGET_LIBC_PROVIDES_SSP
  53 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared}"
  54 #endif
  55
  56 /* Use --as-needed -lgcc_s for eh support.  */
  57 #ifdef HAVE_LD_AS_NEEDED
  58 #define USE_LD_AS_NEEDED 1
  59 #endif
  60
  61 /************************[  Target stuff  ]***********************************/
  62
  63 /* All FreeBSD Architectures support the ELF object file format.  */
  64 #undef  OBJECT_FORMAT_ELF
  65 #define OBJECT_FORMAT_ELF
  66
  67 /* Don't assume anything about the header files.  */
  68 #undef  NO_IMPLICIT_EXTERN_C
  69 #define NO_IMPLICIT_EXTERN_C    1
  70
  71 /* Follow FreeBSD's standard headers (<sys/_types.h> etc...).  */
  72
  73 #undef  WCHAR_TYPE
  74 #define WCHAR_TYPE "int"
  75
  76 #undef  WINT_TYPE
  77 #define WINT_TYPE "int"
  78
  79 #define MATH_LIBRARY_PROFILE    "m_p"
  80
  81 /* Code generation parameters.  */
  82
  83 /* Use periods rather than dollar signs in special g++ assembler names.
  84    This ensures the configuration knows our system correctly so we can link
  85    with libraries compiled with the native cc.  */
  86 #undef NO_DOLLAR_IN_LABEL
  87
  88 /* Used by libgcc2.c.  We support file locking with fcntl / F_SETLKW.
  89    This enables the test coverage code to use file locking when exiting a
  90    program, which avoids race conditions if the program has forked.  */
  91 #define TARGET_POSIX_IO