gcc/config/m32r/linux.h

   1 /* Definitions for Renesas M32R running Linux-based GNU systems using ELF.
   2    Copyright (C) 2003, 2004, 2006, 2007, 2010 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 it
   7    under the terms of the GNU General Public License as published
   8    by the Free Software Foundation; either version 3, or (at your
   9    option) any later version.
  10
  11    GCC is distributed in the hope that it will be useful, but WITHOUT
  12    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  14    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 #define LINUX_DEFAULT_ELF
  21
  22 /* A lie, I guess, but the general idea behind linux/ELF is that we are
  23    supposed to be outputting something that will assemble under SVr4.
  24    This gets us pretty close.  */
  25
  26 #undef  TARGET_VERSION
  27 #define TARGET_VERSION fprintf (stderr, " (M32R GNU/Linux with ELF)");
  28
  29 #undef  SIZE_TYPE
  30 #define SIZE_TYPE "unsigned int"
  31
  32 #undef  PTRDIFF_TYPE
  33 #define PTRDIFF_TYPE "int"
  34
  35 #undef  WCHAR_TYPE
  36 #define WCHAR_TYPE "long int"
  37
  38 #undef  WCHAR_TYPE_SIZE
  39 #define WCHAR_TYPE_SIZE BITS_PER_WORD
  40
  41 /* Provide a LINK_SPEC appropriate for Linux.  Here we provide support
  42    for the special GCC options -static and -shared, which allow us to
  43    link things in one of these three modes by applying the appropriate
  44    combinations of options at link-time.
  45
  46    When the -shared link option is used a final link is not being
  47    done.  */
  48
  49 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
  50
  51 #undef  LINK_SPEC
  52 #if TARGET_LITTLE_ENDIAN
  53 #define LINK_SPEC "%(link_cpu) -m m32rlelf_linux %{shared:-shared} \
  54   %{!shared: \
  55     %{!ibcs: \
  56       %{!static: \
  57         %{rdynamic:-export-dynamic} \
  58         -dynamic-linker " LINUX_DYNAMIC_LINKER "} \
  59         %{static:-static}}}"
  60 #else
  61 #define LINK_SPEC "%(link_cpu) -m m32relf_linux %{shared:-shared} \
  62   %{!shared: \
  63     %{!ibcs: \
  64       %{!static: \
  65         %{rdynamic:-export-dynamic} \
  66         -dynamic-linker " LINUX_DYNAMIC_LINKER "} \
  67         %{static:-static}}}"
  68 #endif
  69
  70 #undef  LIB_SPEC
  71 #define LIB_SPEC \
  72   "%{pthread:-lpthread} \
  73    %{shared: -lc} \
  74    %{!shared: \
  75        %{mieee-fp:-lieee} \
  76        %{profile:-lc_p} %{!profile: -lc}}"
  77
  78 #undef  STARTFILE_SPEC
  79 #if defined HAVE_LD_PIE
  80 #define STARTFILE_SPEC \
  81   "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
  82    crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
  83 #else
  84 #define STARTFILE_SPEC \
  85   "%{!shared: \
  86      %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
  87    crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
  88 #endif
  89
  90 #undef  ENDFILE_SPEC
  91 #define ENDFILE_SPEC \
  92   "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
  93
  94 #undef  SUBTARGET_CPP_SPEC
  95 #define SUBTARGET_CPP_SPEC "\
  96    %{posix:-D_POSIX_SOURCE} \
  97    %{pthread:-D_REENTRANT -D_PTHREADS} \
  98 "
  99
 100 #define TARGET_OS_CPP_BUILTINS() LINUX_TARGET_OS_CPP_BUILTINS()
 101
 102 #define TARGET_ASM_FILE_END file_end_indicate_exec_stack