gcc/config/m32r/linux.h

   1 /* Definitions for Renesas M32R running Linux-based GNU systems using ELF.
   2    Copyright (C) 2003-2019 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 #undef  SIZE_TYPE
  21 #define SIZE_TYPE "unsigned int"
  22
  23 #undef  PTRDIFF_TYPE
  24 #define PTRDIFF_TYPE "int"
  25
  26 #undef  WCHAR_TYPE
  27 #define WCHAR_TYPE "long int"
  28
  29 #undef  WCHAR_TYPE_SIZE
  30 #define WCHAR_TYPE_SIZE BITS_PER_WORD
  31
  32 /* Provide a LINK_SPEC appropriate for Linux.  Here we provide support
  33    for the special GCC options -static and -shared, which allow us to
  34    link things in one of these three modes by applying the appropriate
  35    combinations of options at link-time.
  36
  37    When the -shared link option is used a final link is not being
  38    done.  */
  39
  40 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
  41
  42 #undef  LINK_SPEC
  43 #if TARGET_LITTLE_ENDIAN
  44 #define LINK_SPEC "%(link_cpu) -m m32rlelf_linux %{shared:-shared} \
  45   %{!shared: \
  46     %{!static: \
  47       %{rdynamic:-export-dynamic} \
  48       -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
  49       %{static:-static}}"
  50 #else
  51 #define LINK_SPEC "%(link_cpu) -m m32relf_linux %{shared:-shared} \
  52   %{!shared: \
  53     %{!static: \
  54       %{rdynamic:-export-dynamic} \
  55       -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
  56       %{static:-static}}"
  57 #endif
  58
  59 #undef  LIB_SPEC
  60 #define LIB_SPEC \
  61   "%{pthread:-lpthread} \
  62    %{shared: -lc} \
  63    %{!shared: \
  64        %{mieee-fp:-lieee} \
  65        %{profile:-lc_p} %{!profile: -lc}}"
  66
  67 #undef  STARTFILE_SPEC
  68 #if defined HAVE_LD_PIE
  69 #define STARTFILE_SPEC \
  70   "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
  71    crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
  72 #else
  73 #define STARTFILE_SPEC \
  74   "%{!shared: \
  75      %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
  76    crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
  77 #endif
  78
  79 #undef  ENDFILE_SPEC
  80 #define ENDFILE_SPEC \
  81   "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
  82
  83 #undef  SUBTARGET_CPP_SPEC
  84 #define SUBTARGET_CPP_SPEC "\
  85    %{posix:-D_POSIX_SOURCE} \
  86    %{pthread:-D_REENTRANT -D_PTHREADS} \
  87 "
  88
  89 #define TARGET_OS_CPP_BUILTINS() GNU_USER_TARGET_OS_CPP_BUILTINS()
  90
  91 #define TARGET_ASM_FILE_END file_end_indicate_exec_stack