gcc/config/rs6000/netbsd.h

   1 /* Definitions of target machine for GNU compiler,
   2    for PowerPC NetBSD systems.
   3    Copyright (C) 2002-2024 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 gnu-user.h macros we don't want.  */
  23 #undef CPLUSPLUS_CPP_SPEC
  24 #undef LINK_GCC_C_SEQUENCE_SPEC
  25
  26 #undef  TARGET_OS_CPP_BUILTINS  /* FIXME: sysv4.h should not define this! */
  27 #define TARGET_OS_CPP_BUILTINS()                \
  28   do                                            \
  29     {                                           \
  30       NETBSD_OS_CPP_BUILTINS_ELF();             \
  31       builtin_define ("__powerpc__");           \
  32       builtin_assert ("cpu=powerpc");           \
  33       builtin_assert ("machine=powerpc");       \
  34     }                                           \
  35   while (0)
  36
  37 /* Override the default from rs6000.h to avoid conflicts with macros
  38    defined in NetBSD header files.  */
  39
  40 #undef  RS6000_CPU_CPP_ENDIAN_BUILTINS
  41 #define RS6000_CPU_CPP_ENDIAN_BUILTINS()        \
  42   do                                            \
  43     {                                           \
  44       if (BYTES_BIG_ENDIAN)                     \
  45         {                                       \
  46           builtin_define ("__BIG_ENDIAN__");    \
  47           builtin_assert ("machine=bigendian"); \
  48         }                                       \
  49       else                                      \
  50         {                                       \
  51           builtin_define ("__LITTLE_ENDIAN__"); \
  52           builtin_assert ("machine=littleendian"); \
  53         }                                       \
  54     }                                           \
  55   while (0)
  56
  57 /* Make GCC agree with <machine/ansi.h>.  */
  58
  59 #undef  SIZE_TYPE
  60 #define SIZE_TYPE "unsigned int"
  61
  62 #undef  PTRDIFF_TYPE
  63 #define PTRDIFF_TYPE "int"
  64
  65 /* Undo the spec mess from sysv4.h, and just define the specs
  66    the way NetBSD systems actually expect.  */
  67
  68 #undef  CPP_SPEC
  69 #define CPP_SPEC NETBSD_CPP_SPEC
  70
  71 #undef  LINK_SPEC
  72 #define LINK_SPEC \
  73   "%{!msdata=none:%{G*}} %{msdata=none:-G0} \
  74    %(netbsd_link_spec)"
  75
  76 #define NETBSD_ENTRY_POINT "_start"
  77
  78 #undef  STARTFILE_SPEC
  79 #define STARTFILE_SPEC NETBSD_STARTFILE_SPEC
  80
  81 #undef  ENDFILE_SPEC
  82 #define ENDFILE_SPEC "%(netbsd_endfile_spec)"
  83
  84 #undef  LIB_SPEC
  85 #define LIB_SPEC NETBSD_LIB_SPEC
  86
  87 #undef  SUBTARGET_EXTRA_SPECS
  88 #define SUBTARGET_EXTRA_SPECS                                   \
  89   { "netbsd_link_spec",         NETBSD_LINK_SPEC_ELF },         \
  90   { "netbsd_entry_point",       NETBSD_ENTRY_POINT },           \
  91   { "netbsd_endfile_spec",      NETBSD_ENDFILE_SPEC },
  92
  93
  94 /* Use standard DWARF numbering for DWARF debugging information.  */
  95 #define RS6000_USE_DWARF_NUMBERING
  96