116 lines
4.3 KiB
Makefile
116 lines
4.3 KiB
Makefile
# multilibs -*- mode:Makefile -*-
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#
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# Copyright (C) 2007 Free Software Foundation, Inc.
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#
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# This file is part of GCC.
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#
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# GCC 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 3, or (at your option)
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# any later version.
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#
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# GCC 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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#
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# You should have received a copy of the GNU General Public License
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# along with GCC; see the file COPYING3. If not see
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# <http://www.gnu.org/licenses/>.
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# An awk command to extract lines from the m68k-devices.def file that
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# match $1 and then print the string defined by $2. Leading and
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# trailing whitespace is removed. $1 & $2 can make use of
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# CPU -- the cpu identifier (has leading 'm'/'mcf')
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# FLAGS -- the cpu capability flags
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# CPU_NAME -- the cpu name (has no leading m/mcf)
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# MLIB -- the multilib cpu name (no leading m/mcf)
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# This is intended to be used as $(call M68K_AWK,predicate,string)
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M68K_AWK = $(strip $(shell $(AWK) 'BEGIN { FS="[ \t]*[,()][ \t]*"; ORS=" " }; \
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/^M68K_DEVICE/ { CPU=$$3; FLAGS=$$8; \
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CPU_NAME=substr($$2,2,length($$2)-2); \
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MLIB=substr($$5,2,length($$5)-2); \
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if ($1) print $2 }' $(srcdir)/config/m68k/m68k-devices.def))
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# Add a multilib for each distinct architecture. M68K_MLIB_CPU, if defined,
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# adds additional restrictions.
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M68K_MLIB_CPUS := $(call M68K_AWK,\
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(CPU_NAME == MLIB) $(M68K_MLIB_CPU), \
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"m"MLIB)
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# Make the default cpu the default multilib.
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M68K_MLIB_DEFAULT := $(call M68K_AWK, CPU == "$(target_cpu_default)", MLIB)
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ifeq ($(filter m$(M68K_MLIB_DEFAULT),$(M68K_MLIB_CPUS)),)
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$(error Error default cpu '$(target_cpu_default)' is not in multilib set '$(M68K_MLIB_CPUS)')
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endif
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# Sed arguments that convert mcpu=* arguments into canonical forms.
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# We want to use the legacy m68* options instead of the new -mcpu=68*
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# options when compiling multilibs because the former are recognised
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# by older binutils.
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CANONICALIZE_OPTIONS = -e 's|mcpu=68|m68|g' -e 's|mcpu=cpu32|mcpu32|g'
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MULTILIB_DIRNAMES := $(filter-out m$(M68K_MLIB_DEFAULT),$(M68K_MLIB_CPUS))
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MULTILIB_OPTIONS := $(shell echo $(MULTILIB_DIRNAMES:m%=mcpu=%) \
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| sed -e 's| |/|g' $(CANONICALIZE_OPTIONS))
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# Add subtarget specific options & dirs.
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MULTILIB_DIRNAMES += $(M68K_MLIB_DIRNAMES)
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MULTILIB_OPTIONS += $(M68K_MLIB_OPTIONS)
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MULTILIB_MATCHES :=
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ifneq ($(M68K_ARCH),cf)
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# Map the new-style options to the legacy m68k ones.
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MULTILIB_MATCHES += m68000=mcpu?68000 m68000=march?68000 m68000=mc68000 \
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m68000=m68302 \
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m68020=mcpu?68020 m68020=march?68020 m68020=mc68020 \
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m68030=mcpu?68030 m68030=march?68030 \
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m68040=mcpu?68040 m68040=march?68040 \
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m68060=mcpu?68060 m68060=march?68060 \
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mcpu32=mcpu?cpu32 mcpu32=march?cpu32 mcpu32=m68332
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endif
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ifneq ($(M68K_ARCH),m68k)
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# Map the legacy ColdFire options to the new ones.
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MULTILIB_MATCHES += mcpu?5206=m5200 mcpu?5206e=m5206e mcpu?5208=m528x \
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mcpu?5307=m5300 mcpu?5307=m5307 \
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mcpu?5407=m5400 mcpu?5407=m5407 \
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mcpu?5475=mcfv4e
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# Map -march=* options to the representative -mcpu=* option.
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MULTILIB_MATCHES += mcpu?5206e=march?isaa mcpu?5208=march?isaaplus \
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mcpu?5407=march?isab
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endif
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# Match non-representative -mcpu options to their representative option.
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MULTILIB_MATCHES += \
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$(call M68K_AWK, \
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(CPU_NAME != MLIB) $(M68K_MLIB_CPU), \
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(match(MLIB, "^68") || MLIB == "cpu32" \
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? "m"MLIB"=mcpu?"CPU_NAME \
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: "mcpu?"MLIB"=mcpu?"CPU_NAME))
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MULTILIB_EXCEPTIONS :=
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ifeq ($(firstword $(M68K_MLIB_OPTIONS)),msoft-float)
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# Exclude soft-float multilibs for targets that default to soft-float anyway.
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MULTILIB_EXCEPTIONS += $(call M68K_AWK,\
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(CPU_NAME == MLIB) $(M68K_MLIB_CPU) \
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&& (((CPU ~ "^mcf") && !match(FLAGS, "FL_CF_FPU")) \
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|| CPU == "cpu32" \
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|| CPU == "m68000"), \
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"mcpu="MLIB"/msoft-float*")
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endif
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# Remove the default CPU from the explicit exceptions.
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MULTILIB_EXCEPTIONS := \
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$(patsubst mcpu=$(M68K_MLIB_DEFAULT)/%,%,$(MULTILIB_EXCEPTIONS))
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# Convert all options to canonical form.
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MULTILIB_EXCEPTIONS := $(shell echo $(MULTILIB_EXCEPTIONS) | \
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sed $(CANONICALIZE_OPTIONS))
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LIBGCC = stmp-multilib
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INSTALL_LIBGCC = install-multilib
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