gcc/config/m68k/m68k-none.h

   1 /* Definitions of target machine for GNU compiler.  "naked" 68020.
   2    Copyright (C) 1994, 1996 Free Software Foundation, Inc.
   3
   4 This file is part of GNU CC.
   5
   6 GNU CC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU CC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU CC; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 #include "m68k/m68k.h"
  22
  23 /* Default to m68k (m68020).  */
  24 #ifndef TARGET_CPU_DEFAULT
  25 #define TARGET_CPU_DEFAULT M68K_CPU_m68k
  26 #endif
  27
  28 /* These are values set by the configure script in TARGET_CPU_DEFAULT.
  29    They are ((desired value for TARGET_DEFAULT) << 4) + sequential integer.
  30    See m68k.h for the values (it should really define MASK_FOO so we can
  31    use them).  */
  32 #define M68K_CPU_m68k   ((7 << 4) + 0)
  33 #define M68K_CPU_m68000 ((0 << 4) + 1)
  34 #define M68K_CPU_m68010 ((0 << 4) + 1) /* make same as m68000 */
  35 #define M68K_CPU_m68020 ((7 << 4) + 2)
  36 #define M68K_CPU_m68030 ((7 << 4) + 3)
  37 #define M68K_CPU_m68040 ((01007 << 4) + 4)
  38 #define M68K_CPU_m68302 ((0 << 4) + 5)
  39 #define M68K_CPU_m68332 ((1 << 4) + 6)
  40
  41 /* This is tested for below, so if target wants to override this, it
  42    just set this first in cover file.  */
  43 #ifndef TARGET_DEFAULT
  44 #define TARGET_DEFAULT (TARGET_CPU_DEFAULT >> 4)
  45 #endif
  46 \f
  47 /* Defaults for the various specs below.
  48    These are collected here so we only test TARGET_CPU_DEFAULT once.  */
  49 /* ??? CC1_CPU_DEFAULT_SPEC was copied over from the earlier version of
  50    this file.  However, it's not used anywhere here because it doesn't
  51    seem to be necessary.  */
  52 #if TARGET_CPU_DEFAULT == M68K_CPU_m68k || TARGET_CPU_DEFAULT == M68K_CPU_m68020
  53 #define CPP_CPU_DEFAULT_SPEC "%{!ansi:-Dmc68020 } -D__mc68020 -D__mc68020__"
  54 #define ASM_CPU_DEFAULT_SPEC "-mc68020"
  55 #define CC1_CPU_DEFAULT_SPEC "-m68020"
  56 #else
  57 #if TARGET_CPU_DEFAULT == M68K_CPU_m68000
  58 #define CPP_CPU_DEFAULT_SPEC "%{!ansi:-Dmc68000 } -D__mc68000 -D__mc68000__"
  59 #define ASM_CPU_DEFAULT_SPEC "-mc68000"
  60 #define CC1_CPU_DEFAULT_SPEC "-m68000"
  61 #else
  62 #if TARGET_CPU_DEFAULT == M68K_CPU_m68030
  63 #define CPP_CPU_DEFAULT_SPEC "%{!ansi:-Dmc68030 } -D__mc68030 -D__mc68030__"
  64 #define ASM_CPU_DEFAULT_SPEC "-mc68030"
  65 #define CC1_CPU_DEFAULT_SPEC "-m68030"
  66 #else
  67 #if TARGET_CPU_DEFAULT == M68K_CPU_m68040
  68 #define CPP_CPU_DEFAULT_SPEC "%{!ansi:-Dmc68040 } -D__mc68040 -D__mc68040__"
  69 #define ASM_CPU_DEFAULT_SPEC "-mc68040"
  70 #define CC1_CPU_DEFAULT_SPEC "-m68040"
  71 #else
  72 #if TARGET_CPU_DEFAULT == M68K_CPU_m68302
  73 #define CPP_CPU_DEFAULT_SPEC "%{!ansi:-Dmc68302 } -D__mc68302 -D__mc68302__"
  74 #define ASM_CPU_DEFAULT_SPEC "-mc68302"
  75 #define CC1_CPU_DEFAULT_SPEC "-m68000"
  76 #else
  77 #if TARGET_CPU_DEFAULT == M68K_CPU_m68332
  78 #define CPP_CPU_DEFAULT_SPEC "%{!ansi:-Dmc68332 } -D__mc68332 -D__mc68332__"
  79 #define ASM_CPU_DEFAULT_SPEC "-mc68332"
  80 #define CC1_CPU_DEFAULT_SPEC "-m68020 -mnobitfield %{!m68881:-msoft-float}"
  81 #else
  82 Unrecognized value in TARGET_CPU_DEFAULT.
  83 #endif
  84 #endif
  85 #endif
  86 #endif
  87 #endif
  88 #endif
  89 \f
  90 /* Always define mc68000.
  91    Remember that GCC will automatically add __mc68000 and __mc68000__.  */
  92 #undef CPP_PREDEFINES
  93 #define CPP_PREDEFINES "-Dmc68000"
  94
  95 /* Define one of __HAVE_68881__, __HAVE_FPA__, or nothing (soft float), appropriately.  */
  96 #undef CPP_FPU_SPEC
  97 #if TARGET_DEFAULT & 02
  98 /* ??? Why isn't m68302 treated like m68000 here?  */
  99 #define CPP_FPU_SPEC \
 100 "%{!mc68000:%{!m68000:%{!m68332:%{!msoft-float:%{mfpa:-D__HAVE_FPA__ }%{!mfpa:-D__HAVE_68881__ }}}}}"
 101 #else
 102 /* This can't currently happen, but we code it anyway to show how it's done.  */
 103 #if TARGET_DEFAULT & 0100
 104 #define CPP_FPU_SPEC \
 105 "%{!msoft-float:%{m68881:-D__HAVE_68881__ }%{!m68881:-D__HAVE_FPA__ }}"
 106 #else
 107 #define CPP_FPU_SPEC \
 108 "%{m68881:-D__HAVE_68881__ }%{mfpa:-D__HAVE_FPA__ }"
 109 #endif
 110 #endif
 111
 112 /* Names to predefine in the preprocessor for this target machine.
 113    Other definitions depend on what the default cpu is and switches
 114    given to the compiler:
 115
 116    -m68000: define nothing else
 117    -m68020, -mc68020: define mc68020
 118    -m68030: define mc68030
 119    -m68040: define mc68040
 120    -m68020-40: define mc68020 mc68030 mc68040
 121    -m68302: define mc68302
 122    -m68332: define mc68332
 123    default: define as above appropriately
 124
 125    GCC won't automatically add __'d versions, we have to mention them
 126    explicitly.  */
 127
 128 #undef CPP_SPEC
 129 #define CPP_SPEC "\
 130 %(cpp_fpu) \
 131 %{!ansi:%{m68010:-Dmc68010 }%{m68020:-Dmc68020 }%{mc68020:-Dmc68020 }%{m68030:-Dmc68030 }%{m68040:-Dmc68040 }%{m68020-40:-Dmc68020 -Dmc68030 -Dmc68040 }%{m68302:-Dmc68302 }%{m68332:-Dmc68332 }} \
 132 %{m68010:-D__mc68010__ -D__mc68010 }%{m68020:-D__mc68020__ -D__mc68020 }%{mc68020:-D__mc68020__ -D__mc68020 }%{m68030:-D__mc68030__ -D__mc68030 }%{m68040:-D__mc68040__ -D__mc68040 }%{m68020-40:-D__mc68020__ -D__mc68030__ -D__mc68040__ -D__mc68020 -D__mc68030 -D__mc68040 }%{m68302:-D__mc68302__ -D__mc68302 }%{m68332:-D__mc68332__ -D__mc68332 } \
 133 %{!mc68000:%{!m68000:%{!m68010:%{!mc68020:%{!m68020:%{!m68030:%{!m68040:%{!m68020-40:%{!m68302:%{!m68332:%(cpp_cpu_default)}}}}}}}}}} \
 134 %(cpp_subtarget) \
 135 "
 136
 137 /* Pass flags to gas indicating which type of processor we have.  */
 138
 139 #undef ASM_SPEC
 140 #define ASM_SPEC "\
 141 %{m68851}%{mno-68851}%{m68881}%{mno-68881}%{msoft-float:-mno-68881 } \
 142 %{m68000}%{mc68000}%{m68010}%{m68020}%{mc68020}%{m68030}%{m68040}%{m68020-40:-mc68040 }%{m68302}%{m68332} \
 143 %{!m68000:%{!mc68000:%{!m68010:%{!mc68020:%{!m68020:%{!m68030:%{!m68040:%{!m68020-40:%{!m68302:%{!m68332:%(asm_cpu_default)}}}}}}}}}} \
 144 "
 145
 146 #undef CC1_SPEC
 147 #define CC1_SPEC "\
 148 %{m68000:%{!m68881:-msoft-float }}%{m68302:-m68000 }%{m68332:-m68020 -mnobitfield %{!m68881:-msoft-float }} \
 149 "
 150 /* ??? Is this needed?
 151 %{!m68000:%{!mc68000:%{!m68010:%{!mc68020:%{!m68020:%{!m68030:%{!m68040:%{!m68020-40:%{!m68302:%{!m68332:%(cc1_cpu_default)}}}}}}}}}}
 152 */
 153
 154 /* This macro defines names of additional specifications to put in the specs
 155    that can be used in various specifications like CC1_SPEC.  Its definition
 156    is an initializer with a subgrouping for each command option.
 157
 158    Each subgrouping contains a string constant, that defines the
 159    specification name, and a string constant that used by the GNU CC driver
 160    program.
 161
 162    Do not define this macro if it does not need to do anything.  */
 163
 164 #define EXTRA_SPECS                                     \
 165   { "cpp_cpu_default",  CPP_CPU_DEFAULT_SPEC },         \
 166   { "cpp_fpu",          CPP_FPU_SPEC },                 \
 167   { "cpp_subtarget",    CPP_SUBTARGET_SPEC },           \
 168   { "asm_cpu_default",  ASM_CPU_DEFAULT_SPEC },         \
 169 /*{ "cc1_cpu_default",  CC1_CPU_DEFAULT__SPEC },*/      \
 170   SUBTARGET_EXTRA_SPECS
 171
 172 #define CPP_SUBTARGET_SPEC ""
 173 #define SUBTARGET_EXTRA_SPECS
 174 \f
 175 /* Avoid building multilib libraries for the defaults.
 176    t-m68kbare doesn't support -mfpa in the multilib'd libraries, so we don't
 177    either.
 178    For targets not handled here, just build the full set of multilibs.
 179    The default is m68k 99.9% of the time anyway.  */
 180
 181 #if TARGET_CPU_DEFAULT == M68K_CPU_m68k || TARGET_CPU_DEFAULT == M68K_CPU_m68020
 182 #if TARGET_DEFAULT & 2
 183 #define MULTILIB_DEFAULTS { "m68020", "m68881" }
 184 #else
 185 #define MULTILIB_DEFAULTS { "m68020", "msoft-float" }
 186 #endif
 187 #endif
 188
 189 #if TARGET_CPU_DEFAULT == M68K_CPU_m68000 || TARGET_CPU_DEFAULT == M68K_CPU_m68302
 190 #if TARGET_DEFAULT & 2
 191 #define MULTILIB_DEFAULTS { "m68000", "m68881" }
 192 #else
 193 #define MULTILIB_DEFAULTS { "m68000", "msoft-float" }
 194 #endif
 195 #endif