contrib/gcc/config/rs6000/netbsd.h

   1 /* Definitions of target machine for GNU compiler,
   2    for PowerPC NetBSD systems.
   3    Copyright 2002, 2003 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 2, 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 COPYING.  If not, write to the
  20    Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
  21    MA 02110-1301, USA.  */
  22
  23 #undef  TARGET_OS_CPP_BUILTINS  /* FIXME: sysv4.h should not define this! */
  24 #define TARGET_OS_CPP_BUILTINS()                \
  25   do                                            \
  26     {                                           \
  27       NETBSD_OS_CPP_BUILTINS_ELF();             \
  28       builtin_define ("__powerpc__");           \
  29       builtin_assert ("cpu=powerpc");           \
  30       builtin_assert ("machine=powerpc");       \
  31     }                                           \
  32   while (0)
  33
  34 /* Override the default from rs6000.h to avoid conflicts with macros
  35    defined in NetBSD header files.  */
  36
  37 #undef  RS6000_CPU_CPP_ENDIAN_BUILTINS
  38 #define RS6000_CPU_CPP_ENDIAN_BUILTINS()        \
  39   do                                            \
  40     {                                           \
  41       if (BYTES_BIG_ENDIAN)                     \
  42         {                                       \
  43           builtin_define ("__BIG_ENDIAN__");    \
  44           builtin_assert ("machine=bigendian"); \
  45         }                                       \
  46       else                                      \
  47         {                                       \
  48           builtin_define ("__LITTLE_ENDIAN__"); \
  49           builtin_assert ("machine=littleendian"); \
  50         }                                       \
  51     }                                           \
  52   while (0)
  53
  54 /* Make GCC agree with <machine/ansi.h>.  */
  55
  56 #undef  SIZE_TYPE
  57 #define SIZE_TYPE "unsigned int"
  58
  59 #undef  PTRDIFF_TYPE
  60 #define PTRDIFF_TYPE "int"
  61
  62 /* Undo the spec mess from sysv4.h, and just define the specs
  63    the way NetBSD systems actually expect.  */
  64
  65 #undef  CPP_SPEC
  66 #define CPP_SPEC NETBSD_CPP_SPEC
  67
  68 #undef  LINK_SPEC
  69 #define LINK_SPEC \
  70   "%{!msdata=none:%{G*}} %{msdata=none:-G0} \
  71    %(netbsd_link_spec)"
  72
  73 #define NETBSD_ENTRY_POINT "_start"
  74
  75 #undef  STARTFILE_SPEC
  76 #define STARTFILE_SPEC NETBSD_STARTFILE_SPEC
  77
  78 #undef  ENDFILE_SPEC
  79 #define ENDFILE_SPEC \
  80   "crtsavres%O%s %(netbsd_endfile_spec)"
  81
  82 #undef  LIB_SPEC
  83 #define LIB_SPEC NETBSD_LIB_SPEC
  84
  85 #undef  SUBTARGET_EXTRA_SPECS
  86 #define SUBTARGET_EXTRA_SPECS                                   \
  87   { "netbsd_link_spec",         NETBSD_LINK_SPEC_ELF },         \
  88   { "netbsd_entry_point",       NETBSD_ENTRY_POINT },           \
  89   { "netbsd_endfile_spec",      NETBSD_ENDFILE_SPEC },
  90
  91
  92 #undef  TARGET_VERSION
  93 #define TARGET_VERSION fprintf (stderr, " (NetBSD/powerpc ELF)");