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199 lines
7.8 KiB
C
199 lines
7.8 KiB
C
/* Definitions of target machine for GNU compiler. "naked" 68020.
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Copyright (C) 1994, 1996 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "m68k/m68k.h"
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/* Default to m68k (m68020). */
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#ifndef TARGET_CPU_DEFAULT
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#define TARGET_CPU_DEFAULT M68K_CPU_m68k
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#endif
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/* These are values set by the configure script in TARGET_CPU_DEFAULT.
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They are ((desired value for TARGET_DEFAULT) << 4) + sequential integer.
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See m68k.h for the values (it should really define MASK_FOO so we can
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use them). */
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#define M68K_CPU_m68k ((7 << 4) + 0)
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#define M68K_CPU_m68000 ((0 << 4) + 1)
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#define M68K_CPU_m68010 ((0 << 4) + 1) /* make same as m68000 */
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#define M68K_CPU_m68020 ((7 << 4) + 2)
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#define M68K_CPU_m68030 ((7 << 4) + 3)
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#define M68K_CPU_m68040 ((01007 << 4) + 4)
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#define M68K_CPU_m68302 ((0 << 4) + 5)
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#define M68K_CPU_m68332 ((1 << 4) + 6)
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/* This is tested for below, so if target wants to override this, it
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just set this first in cover file. */
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#ifndef TARGET_DEFAULT
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#define TARGET_DEFAULT (TARGET_CPU_DEFAULT >> 4)
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#endif
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/* Defaults for the various specs below.
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These are collected here so we only test TARGET_CPU_DEFAULT once. */
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/* ??? CC1_CPU_DEFAULT_SPEC was copied over from the earlier version of
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this file. However, it's not used anywhere here because it doesn't
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seem to be necessary. */
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#if TARGET_CPU_DEFAULT == M68K_CPU_m68k || TARGET_CPU_DEFAULT == M68K_CPU_m68020
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#define CPP_CPU_DEFAULT_SPEC "%{!ansi:-Dmc68020 } -D__mc68020 -D__mc68020__"
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#define ASM_CPU_DEFAULT_SPEC "-mc68020"
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#define CC1_CPU_DEFAULT_SPEC "-m68020"
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#else
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#if TARGET_CPU_DEFAULT == M68K_CPU_m68000
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#define CPP_CPU_DEFAULT_SPEC "%{!ansi:-Dmc68000 } -D__mc68000 -D__mc68000__"
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#define ASM_CPU_DEFAULT_SPEC "-mc68000"
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#define CC1_CPU_DEFAULT_SPEC "-m68000"
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#else
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#if TARGET_CPU_DEFAULT == M68K_CPU_m68030
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#define CPP_CPU_DEFAULT_SPEC "%{!ansi:-Dmc68030 } -D__mc68030 -D__mc68030__"
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#define ASM_CPU_DEFAULT_SPEC "-mc68030"
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#define CC1_CPU_DEFAULT_SPEC "-m68030"
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#else
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#if TARGET_CPU_DEFAULT == M68K_CPU_m68040
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#define CPP_CPU_DEFAULT_SPEC "%{!ansi:-Dmc68040 } -D__mc68040 -D__mc68040__"
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#define ASM_CPU_DEFAULT_SPEC "-mc68040"
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#define CC1_CPU_DEFAULT_SPEC "-m68040"
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#else
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#if TARGET_CPU_DEFAULT == M68K_CPU_m68302
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#define CPP_CPU_DEFAULT_SPEC "%{!ansi:-Dmc68302 } -D__mc68302 -D__mc68302__"
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#define ASM_CPU_DEFAULT_SPEC "-mc68302"
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#define CC1_CPU_DEFAULT_SPEC "-m68000"
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#else
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#if TARGET_CPU_DEFAULT == M68K_CPU_m68332
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#define CPP_CPU_DEFAULT_SPEC "%{!ansi:-Dmc68332 } -D__mc68332 -D__mc68332__"
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#define ASM_CPU_DEFAULT_SPEC "-mc68332"
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#define CC1_CPU_DEFAULT_SPEC "-m68020 -mnobitfield %{!m68881:-msoft-float}"
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#else
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Unrecognized value in TARGET_CPU_DEFAULT.
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#endif
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#endif
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#endif
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#endif
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#endif
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#endif
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/* Always define mc68000.
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Remember that GCC will automatically add __mc68000 and __mc68000__. */
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#undef CPP_PREDEFINES
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#define CPP_PREDEFINES "-Dmc68000"
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/* Define one of __HAVE_68881__, __HAVE_FPA__, or nothing (soft float), appropriately. */
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#undef CPP_FPU_SPEC
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#if TARGET_DEFAULT & MASK_68881
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/* ??? Why isn't m68302 treated like m68000 here? */
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#define CPP_FPU_SPEC \
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"%{!mc68000:%{!m68000:%{!m68332:%{!m5200:%{!msoft-float:%{mfpa:-D__HAVE_FPA__ }%{!mfpa:-D__HAVE_68881__ }}}}}}"
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#else
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/* This can't currently happen, but we code it anyway to show how it's done. */
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#if TARGET_DEFAULT & MASK_FPA
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#define CPP_FPU_SPEC \
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"%{!msoft-float:%{m68881:-D__HAVE_68881__ }%{!m68881:-D__HAVE_FPA__ }}"
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#else
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#define CPP_FPU_SPEC \
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"%{m68881:-D__HAVE_68881__ }%{mfpa:-D__HAVE_FPA__ }"
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#endif
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#endif
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/* Names to predefine in the preprocessor for this target machine.
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Other definitions depend on what the default cpu is and switches
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given to the compiler:
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-m68000, -mc68000: define nothing else
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-m68010: define mc68010
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-m68020, -mc68020: define mc68020
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-m68030: define mc68030
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-m68040: define mc68040
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-m68060: define mc68060
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-m68020-40: define mc68020 mc68030 mc68040
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-m68302: define mc68302
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-m68332: define mc68332
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-m5200: define mcf5200
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default: define as above appropriately
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GCC won't automatically add __'d versions, we have to mention them
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explicitly. */
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#undef CPP_SPEC
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#define CPP_SPEC "\
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%(cpp_fpu) \
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%{!ansi:%{m68010:-Dmc68010 }%{m68020:-Dmc68020 }%{mc68020:-Dmc68020 }%{m68030:-Dmc68030 }%{m68040:-Dmc68040 }%{m68020-40:-Dmc68020 -Dmc68030 -Dmc68040 }%{m68060:-Dmc68060 }%{m68302:-Dmc68302 }%{m68332:-Dmc68332 }%{m5200:-Dmcf5200 }} \
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%{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 }%{mc68060:-D__mc68060__ -D__mc68060 }%{m68302:-D__mc68302__ -D__mc68302 }%{m68332:-D__mc68332__ -D__mc68332 }%{m5200:-D__mcf5200__ -D__mcf5200 } \
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%{!mc68000:%{!m68000:%{!m68010:%{!mc68020:%{!m68020:%{!m68030:%{!m68040:%{!m68020-40:%{!m68060:%{!m68302:%{!m68332:%{!m5200:%(cpp_cpu_default)}}}}}}}}}}}} \
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%(cpp_subtarget) \
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"
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/* Pass flags to gas indicating which type of processor we have. */
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#undef ASM_SPEC
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#define ASM_SPEC "\
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%{m68851}%{mno-68851}%{m68881}%{mno-68881}%{msoft-float:-mno-68881 } \
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%{m68000}%{mc68000}%{m68010}%{m68020}%{mc68020}%{m68030}%{m68040}%{m68020-40:-mc68040}%{m68060}%{m68302}%{m68332}%{m5200} \
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%{!mc68000:%{!m68000:%{!m68010:%{!mc68020:%{!m68020:%{!m68030:%{!m68040:%{!m68020-40:%{!m68060:%{!m68302:%{!m68332:%{!m5200:%(asm_cpu_default)}}}}}}}}}}}} \
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"
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#undef CC1_SPEC
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#define CC1_SPEC "\
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%{m68000:%{!m68881:-msoft-float }}%{m68302:-m68000 }%{m68332:-m68020 -mnobitfield %{!m68881:-msoft-float }} \
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"
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/* ??? Is this needed?
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%{!m68000:%{!mc68000:%{!m68010:%{!mc68020:%{!m68020:%{!m68030:%{!m68040:%{!m68020-40:%{!m68302:%{!m68332:%(cc1_cpu_default)}}}}}}}}}}
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*/
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/* This macro defines names of additional specifications to put in the specs
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that can be used in various specifications like CC1_SPEC. Its definition
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is an initializer with a subgrouping for each command option.
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Each subgrouping contains a string constant, that defines the
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specification name, and a string constant that used by the GNU CC driver
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program.
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Do not define this macro if it does not need to do anything. */
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#define EXTRA_SPECS \
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{ "cpp_cpu_default", CPP_CPU_DEFAULT_SPEC }, \
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{ "cpp_fpu", CPP_FPU_SPEC }, \
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{ "cpp_subtarget", CPP_SUBTARGET_SPEC }, \
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{ "asm_cpu_default", ASM_CPU_DEFAULT_SPEC }, \
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/*{ "cc1_cpu_default", CC1_CPU_DEFAULT__SPEC },*/ \
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SUBTARGET_EXTRA_SPECS
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#define CPP_SUBTARGET_SPEC ""
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#define SUBTARGET_EXTRA_SPECS
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/* Avoid building multilib libraries for the defaults.
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t-m68kbare doesn't support -mfpa in the multilib'd libraries, so we don't
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either.
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For targets not handled here, just build the full set of multilibs.
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The default is m68k 99.9% of the time anyway. */
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#if TARGET_CPU_DEFAULT == M68K_CPU_m68k || TARGET_CPU_DEFAULT == M68K_CPU_m68020
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#if TARGET_DEFAULT & MASK_68881
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#define MULTILIB_DEFAULTS { "m68020", "m68881" }
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#else
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#define MULTILIB_DEFAULTS { "m68020", "msoft-float" }
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#endif
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#endif
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#if TARGET_CPU_DEFAULT == M68K_CPU_m68000 || TARGET_CPU_DEFAULT == M68K_CPU_m68302
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#if TARGET_DEFAULT & MASK_68881
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#define MULTILIB_DEFAULTS { "m68000", "m68881" }
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#else
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#define MULTILIB_DEFAULTS { "m68000", "msoft-float" }
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#endif
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#endif
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