gcc/config/rs6000/netbsd.h

   1 /* Definitions of target machine for GNU compiler,
   2    for PowerPC NetBSD systems.
   3    Copyright (C) 2002-2016 Free Software Foundation, Inc.
   4    Contributed by Wasabi Systems, Inc.
   5
   6    This file is part of GCC.
   7
   8    GCC is free software; you can redistribute it and/or modify it
   9    under the terms of the GNU General Public License as published
  10    by the Free Software Foundation; either version 3, or (at your
  11    option) any later version.
  12
  13    GCC is distributed in the hope that it will be useful, but WITHOUT
  14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  15    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  16    License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with GCC; see the file COPYING3.  If not see
  20    <http://www.gnu.org/licenses/>.  */
  21
  22 #undef  TARGET_OS_CPP_BUILTINS  /* FIXME: sysv4.h should not define this! */
  23 #define TARGET_OS_CPP_BUILTINS()                \
  24   do                                            \
  25     {                                           \
  26       NETBSD_OS_CPP_BUILTINS_ELF();             \
  27       builtin_define ("__powerpc__");           \
  28       builtin_assert ("cpu=powerpc");           \
  29       builtin_assert ("machine=powerpc");       \
  30     }                                           \
  31   while (0)
  32
  33 /* Override the default from rs6000.h to avoid conflicts with macros
  34    defined in NetBSD header files.  */
  35
  36 #undef  RS6000_CPU_CPP_ENDIAN_BUILTINS
  37 #define RS6000_CPU_CPP_ENDIAN_BUILTINS()        \
  38   do                                            \
  39     {                                           \
  40       if (BYTES_BIG_ENDIAN)                     \
  41         {                                       \
  42           builtin_define ("__BIG_ENDIAN__");    \
  43           builtin_assert ("machine=bigendian"); \
  44         }                                       \
  45       else                                      \
  46         {                                       \
  47           builtin_define ("__LITTLE_ENDIAN__"); \
  48           builtin_assert ("machine=littleendian"); \
  49         }                                       \
  50     }                                           \
  51   while (0)
  52
  53 /* Make GCC agree with <machine/ansi.h>.  */
  54
  55 #undef  SIZE_TYPE
  56 #define SIZE_TYPE "unsigned int"
  57
  58 #undef  PTRDIFF_TYPE
  59 #define PTRDIFF_TYPE "int"
  60
  61 /* Undo the spec mess from sysv4.h, and just define the specs
  62    the way NetBSD systems actually expect.  */
  63
  64 #undef  CPP_SPEC
  65 #define CPP_SPEC NETBSD_CPP_SPEC
  66
  67 #undef  LINK_SPEC
  68 #define LINK_SPEC \
  69   "%{!msdata=none:%{G*}} %{msdata=none:-G0} \
  70    %(netbsd_link_spec)"
  71
  72 #define NETBSD_ENTRY_POINT "_start"
  73
  74 #undef  STARTFILE_SPEC
  75 #define STARTFILE_SPEC NETBSD_STARTFILE_SPEC
  76
  77 #undef  ENDFILE_SPEC
  78 #define ENDFILE_SPEC "%(netbsd_endfile_spec)"
  79
  80 #undef  LIB_SPEC
  81 #define LIB_SPEC NETBSD_LIB_SPEC
  82
  83 #undef  SUBTARGET_EXTRA_SPECS
  84 #define SUBTARGET_EXTRA_SPECS                                   \
  85   { "netbsd_link_spec",         NETBSD_LINK_SPEC_ELF },         \
  86   { "netbsd_entry_point",       NETBSD_ENTRY_POINT },           \
  87   { "netbsd_endfile_spec",      NETBSD_ENDFILE_SPEC },
  88
  89
  90 /* Use standard DWARF numbering for DWARF debugging information.  */
  91 #define RS6000_USE_DWARF_NUMBERING
  92