gcc/config/mips/netbsd.h

   1 /* Definitions of target machine for GNU compiler, for MIPS NetBSD systems.
   2    Copyright (C) 1993, 1995, 1996, 1997, 1999, 2000, 2001, 2002
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GNU CC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU CC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22
  23 /* Define default target values. */
  24
  25 #ifndef TARGET_ENDIAN_DEFAULT
  26 #define TARGET_ENDIAN_DEFAULT MASK_BIG_ENDIAN
  27 #endif
  28
  29 #ifndef MACHINE_TYPE
  30 #if TARGET_ENDIAN_DEFAULT != 0
  31 #define MACHINE_TYPE "NetBSD/mipseb ELF"
  32 #else
  33 #define MACHINE_TYPE "NetBSD/mipsel ELF"
  34 #endif
  35 #endif
  36
  37 #define TARGET_DEFAULT (MASK_GAS|MASK_ABICALLS)
  38
  39
  40 /* XXX Don't use DWARF-2 debugging info, for now.  */
  41 #undef DBX_DEBUGGING_INFO
  42 #define DBX_DEBUGGING_INFO
  43 #undef PREFERRED_DEBUGGING_TYPE
  44 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
  45
  46
  47 /* Include the generic MIPS ELF configuration.  */
  48 #include <mips/elf.h>
  49
  50 /* Now clean up after it.  */
  51 #undef OBJECT_FORMAT_COFF
  52 #undef MD_EXEC_PREFIX
  53 #undef MD_STARTFILE_PREFIX
  54 #undef US_SOFTWARE_GOFAST
  55 #undef INIT_SUBTARGET_OPTABS
  56 #define INIT_SUBTARGET_OPTABS
  57
  58
  59 /* Get generic NetBSD definitions.  */
  60 #include <netbsd.h>
  61
  62
  63 /* Get generic NetBSD ELF definitions.  */
  64 #include <netbsd-elf.h>
  65
  66
  67 /* Provide CPP predefines appropriate for NetBSD.  We default to
  68    MIPS-I.  */
  69
  70 #undef CPP_PREDEFINES
  71 #if TARGET_ENDIAN_DEFAULT != 0
  72 #define CPP_PREDEFINES                                                  \
  73   "-D__NetBSD__ -D__ELF__ -D__mips__ -D__mips=1 -D__MIPSEB__            \
  74    -D__NO_LEADING_UNDERSCORES__ -D__GP_SUPPORT__                        \
  75    -Asystem=unix -Asystem=NetBSD -Amachine=mips"
  76 #else
  77 #define CPP_PREDEFINES                                                  \
  78   "-D__NetBSD__ -D__ELF__ -D__mips__ -D__mips=1 -D__MIPSEL__            \
  79    -D__NO_LEADING_UNDERSCORES__ -D__GP_SUPPORT__                        \
  80    -Asystem=unix -Asystem=NetBSD -Amachine=mips"
  81 #endif
  82
  83
  84 /* Provide a CPP_SPEC appropriate for NetBSD.  This is a simplified
  85    CPP_SPEC from <mips/mips.h>.  We use the SUBTARGET_CPP_SPEC to
  86    deal with NetBSD-specific CPP options.  */
  87
  88 #undef CPP_SPEC
  89 #define CPP_SPEC                                                        \
  90   "%(subtarget_cpp_size_spec)                                           \
  91    %{mips3:-U__mips -D__mips=3 -D__mips64}                              \
  92    %{mips4:-U__mips -D__mips=4 -D__mips64}                              \
  93    %{mips32:-U__mips -D__mips=32}                                       \
  94    %{mips64:-U__mips -D__mips=64 -D__mips64}                            \
  95    %{mgp32:-U__mips64} %{mgp64:-D__mips64}                              \
  96    %{mfp32:-D__mips_fpr=32} %{mfp64:-D__mips_fpr=64}                    \
  97    %{!mfp32:                                                            \
  98      %{!mfp64:                                                          \
  99        %{mgp32:-D__mips_fpr=32}                                         \
 100        %{!mgp32: %(cpp_fpr_spec)}}}                                     \
 101    %{msingle-float:                                                     \
 102      %{!msoft-float:-D__mips_single_float}}                             \
 103    %{m4650:                                                             \
 104      %{!msoft-float:-D__mips_single_float}}                             \
 105    %{msoft-float:-D__mips_soft_float}                                   \
 106    %{mabi=eabi:-D__mips_eabi}                                           \
 107    %{mips16:%{!mno-mips16:-D__mips16}}                                  \
 108    %{EB:-U__MIPSEL__ -D__MIPSEB__}                                      \
 109    %{EL:-U__MIPSEB__ -D__MIPSEL__}                                      \
 110    %(subtarget_cpp_spec) "
 111
 112
 113 /* Provide a SUBTARGET_CPP_SIZE_SPEC appropriate for NetBSD.  In
 114    addition to the normal work done by this spec, we also define
 115    __LONG64 or not (so that <machine/ansi.h> can tell).  */
 116
 117 #undef SUBTARGET_CPP_SIZE_SPEC
 118 #define SUBTARGET_CPP_SIZE_SPEC                                         \
 119   "%{mlong64:                                                           \
 120      %{!mips1:                                                          \
 121        %{!mips2:                                                        \
 122          %{!mips32:-D__SIZE_TYPE__=long\\ unsigned\\ int -D__PTRDIFF_TYPE__=long\\ int -D__LONG64}}}} \
 123    %{!mlong64:-D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int -U__LONG64}"
 124
 125
 126 /* Provide a SUBTARGET_CPP_SPEC appropriate for NetBSD.  Currently,
 127    we just deal with the GCC option '-posix'.  */
 128
 129 #undef SUBTARGET_CPP_SPEC
 130 #define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
 131
 132
 133 /* Provide a LINK_SPEC appropriate for a NetBSD/mips target.
 134    This is a copy of LINK_SPEC from <netbsd-elf.h> tweaked for
 135    the MIPS target.  */
 136
 137 #undef LINK_SPEC
 138 #define LINK_SPEC                                                       \
 139   "%{assert*} %{R*} %{rpath*}                                           \
 140    %{EL:-m elf32lmip}                                                   \
 141    %{EB:-m elf32bmip}                                                   \
 142    %(endian_spec)                                                       \
 143    %{G*} %{mips1} %{mips2} %{mips3} %{mips4} %{mips32} %{mips64}        \
 144    %{bestGnum} %{call_shared} %{no_archive} %{exact_version}            \
 145    %{shared:-shared}                                                    \
 146    %{!shared:                                                           \
 147      -dc -dp                                                            \
 148      %{!nostdlib:                                                       \
 149        %{!r*:                                                           \
 150          %{!e*:-e __start}}}                                            \
 151      %{!static:                                                         \
 152        %{rdynamic:-export-dynamic}                                      \
 153        %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}}       \
 154      %{static:-static}}"
 155
 156
 157 #undef SUBTARGET_ASM_SPEC
 158 #define SUBTARGET_ASM_SPEC                                              \
 159   "%{fpic:-KPIC} %{fPIC:-KPIC}"
 160
 161
 162 /* -G is incompatible with -KPIC which is the default, so only allow objects
 163    in the small data section if the user explicitly asks for it.  */
 164
 165 #undef MIPS_DEFAULT_GVALUE
 166 #define MIPS_DEFAULT_GVALUE 0
 167
 168
 169 /* This defines which switch letters take arguments.  -G is a MIPS
 170    special.  */
 171
 172 #undef SWITCH_TAKES_ARG
 173 #define SWITCH_TAKES_ARG(CHAR)                                          \
 174   (DEFAULT_SWITCH_TAKES_ARG (CHAR)                                      \
 175    || (CHAR) == 'R'                                                     \
 176    || (CHAR) == 'G')
 177
 178
 179 #undef ASM_FINAL_SPEC
 180 #undef SET_ASM_OP
 181
 182
 183 /* Make gcc agree with <machine/ansi.h> */
 184
 185 #undef WCHAR_TYPE
 186 #define WCHAR_TYPE "int"
 187
 188 #undef WCHAR_UNSIGNED
 189 #define WCHAR_UNSIGNED 0
 190
 191 #undef WCHAR_TYPE_SIZE
 192 #define WCHAR_TYPE_SIZE 32
 193
 194 #undef WINT_TYPE
 195 #define WINT_TYPE "int"