gcc/config/m68k/m68k-none.h

   1 /* Definitions of target machine for GNU compiler.  "naked" 68020.
   2    Copyright (C) 1994, 1996, 2003 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC 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 GCC 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 GCC; 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 /* Default to m68k (m68020).  */
  22 #ifndef TARGET_CPU_DEFAULT
  23 #define TARGET_CPU_DEFAULT M68K_CPU_m68k
  24 #endif
  25
  26 /* These are values set by the configure script in TARGET_CPU_DEFAULT.
  27    They are (sequential integer + (desired value for TARGET_DEFAULT) << 4).  */
  28 #define M68K_CPU_m68k   (0 + ((MASK_68020|MASK_68881|MASK_BITFIELD)<<4))
  29 #define M68K_CPU_m68000 (1 + (0 << 4))
  30 #define M68K_CPU_m68010 (1 + (0 << 4)) /* make same as m68000 */
  31 #define M68K_CPU_m68020 (2 + ((MASK_68020|MASK_68881|MASK_BITFIELD) << 4))
  32 #define M68K_CPU_m68030 (3 + ((MASK_68030|MASK_68020|MASK_68881|MASK_BITFIELD) << 4))
  33 #define M68K_CPU_m68040 (4 + ((MASK_68040_ONLY|MASK_68020|MASK_68881|MASK_BITFIELD) << 4))
  34 #define M68K_CPU_m68302 (5 + (0 << 4))
  35 #define M68K_CPU_m68332 (6 + (MASK_68020 << 4))
  36
  37 /* This is tested for below, so if target wants to override this, it
  38    just set this first in cover file.  */
  39 #ifndef TARGET_DEFAULT
  40 #define TARGET_DEFAULT (TARGET_CPU_DEFAULT >> 4)
  41 #endif
  42 \f
  43 /* Defaults for the various specs below.
  44    These are collected here so we only test TARGET_CPU_DEFAULT once.  */
  45 /* ??? CC1_CPU_DEFAULT_SPEC was copied over from the earlier version of
  46    this file.  However, it's not used anywhere here because it doesn't
  47    seem to be necessary.  */
  48 #if TARGET_CPU_DEFAULT == M68K_CPU_m68k || TARGET_CPU_DEFAULT == M68K_CPU_m68020
  49 #define ASM_CPU_DEFAULT_SPEC "-mc68020"
  50 #define CC1_CPU_DEFAULT_SPEC "-m68020"
  51 #else
  52 #if TARGET_CPU_DEFAULT == M68K_CPU_m68000
  53 #define ASM_CPU_DEFAULT_SPEC "-mc68000"
  54 #define CC1_CPU_DEFAULT_SPEC "-m68000"
  55 #else
  56 #if TARGET_CPU_DEFAULT == M68K_CPU_m68030
  57 #define ASM_CPU_DEFAULT_SPEC "-mc68030"
  58 #define CC1_CPU_DEFAULT_SPEC "-m68030"
  59 #else
  60 #if TARGET_CPU_DEFAULT == M68K_CPU_m68040
  61 #define ASM_CPU_DEFAULT_SPEC "-mc68040"
  62 #define CC1_CPU_DEFAULT_SPEC "-m68040"
  63 #else
  64 #if TARGET_CPU_DEFAULT == M68K_CPU_m68302
  65 #define ASM_CPU_DEFAULT_SPEC "-mc68302"
  66 #define CC1_CPU_DEFAULT_SPEC "-m68302"
  67 #else
  68 #if TARGET_CPU_DEFAULT == M68K_CPU_m68332
  69 #define ASM_CPU_DEFAULT_SPEC "-mc68332"
  70 #define CC1_CPU_DEFAULT_SPEC "-m68332"
  71 #else
  72 Unrecognized value in TARGET_CPU_DEFAULT.
  73 #endif
  74 #endif
  75 #endif
  76 #endif
  77 #endif
  78 #endif
  79
  80 /* Pass flags to gas indicating which type of processor we have.  */
  81
  82 #undef ASM_SPEC
  83 #define ASM_SPEC "\
  84 %{m68851}%{mno-68851}%{m68881}%{mno-68881}%{msoft-float:-mno-68881} %{m68000}%{m68302}%{mc68000}%{m68010}%{m68020}%{mc68020}%{m68030}%{m68040}%{m68020-40:-mc68040} %{m68020-60:-mc68040} %{m68060}%{mcpu32}%{m68332}%{m5200}%{m5206e}%{m528x}%{m5307}%{m5407}%{!mc68000:%{!m68000:%{!m68302:%{!m68010:%{!mc68020:%{!m68020:%{!m68030:%{!m68040:%{!m68020-40:%{!m68020-60:%{!m68060:%{!mcpu32:%{!m68332:%{!m5200:%{!m5206e:%{!m528x:%{!m5307:%{!m5407:%(asm_cpu_default)}}}}}}}}}}}}}}}}}} \
  85 %{fPIC:--pcrel} %{fpic:--pcrel} %{msep-data:--pcrel} %{mid-shared-library:--pcrel} \
  86 "
  87
  88 /* cc1/cc1plus always receives all the -m flags. If the specs strings above
  89    are consistent with the TARGET_OPTIONS flags in m68k.h, there should be no
  90    need for any further cc1/cc1plus specs.  */
  91
  92 #undef CC1_SPEC
  93 #define CC1_SPEC ""
  94
  95 /* This macro defines names of additional specifications to put in the specs
  96    that can be used in various specifications like CC1_SPEC.  Its definition
  97    is an initializer with a subgrouping for each command option.
  98
  99    Each subgrouping contains a string constant, that defines the
 100    specification name, and a string constant that used by the GCC driver
 101    program.
 102
 103    Do not define this macro if it does not need to do anything.  */
 104
 105 #define EXTRA_SPECS                                     \
 106   { "asm_cpu_default",  ASM_CPU_DEFAULT_SPEC },         \
 107   { "cc1_cpu_default",  CC1_CPU_DEFAULT_SPEC },         \
 108   SUBTARGET_EXTRA_SPECS
 109
 110 #define CPP_SUBTARGET_SPEC ""
 111 #define SUBTARGET_EXTRA_SPECS
 112 \f
 113 /* Avoid building multilib libraries for the defaults.
 114    For targets not handled here, just build the full set of multilibs.
 115    The default is m68k 99.9% of the time anyway.  */
 116
 117 #if TARGET_CPU_DEFAULT == M68K_CPU_m68k || TARGET_CPU_DEFAULT == M68K_CPU_m68020
 118 #if TARGET_DEFAULT & MASK_68881
 119 #define MULTILIB_DEFAULTS { "m68020", "m68881" }
 120 #else
 121 #define MULTILIB_DEFAULTS { "m68020", "msoft-float" }
 122 #endif
 123 #endif
 124
 125 #if TARGET_CPU_DEFAULT == M68K_CPU_m68000 || TARGET_CPU_DEFAULT == M68K_CPU_m68302
 126 #if TARGET_DEFAULT & MASK_68881
 127 #define MULTILIB_DEFAULTS { "m68000", "m68881" }
 128 #else
 129 #define MULTILIB_DEFAULTS { "m68000", "msoft-float" }
 130 #endif
 131 #endif