1# multilibs -*- mode:Makefile -*- 2# 3# Copyright (C) 2007 Free Software Foundation, Inc. 4# 5# This file is part of GCC. 6# 7# GCC 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 3, or (at your option) 10# any later version. 11# 12# GCC 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 GCC; see the file COPYING3. If not see 19# <http://www.gnu.org/licenses/>. 20 21# An awk command to extract lines from the m68k-devices.def file that 22# match $1 and then print the string defined by $2. Leading and 23# trailing whitespace is removed. $1 & $2 can make use of 24# CPU -- the cpu identifier (has leading 'm'/'mcf') 25# FLAGS -- the cpu capability flags 26# CPU_NAME -- the cpu name (has no leading m/mcf) 27# MLIB -- the multilib cpu name (no leading m/mcf) 28# This is intended to be used as $(call M68K_AWK,predicate,string) 29M68K_AWK = $(strip $(shell $(AWK) 'BEGIN { FS="[ \t]*[,()][ \t]*"; ORS=" " }; \ 30 /^M68K_DEVICE/ { CPU=$$3; FLAGS=$$8; \ 31 CPU_NAME=substr($$2,2,length($$2)-2); \ 32 MLIB=substr($$5,2,length($$5)-2); \ 33 if ($1) print $2 }' $(srcdir)/config/m68k/m68k-devices.def)) 34 35# Add a multilib for each distinct architecture. M68K_MLIB_CPU, if defined, 36# adds additional restrictions. 37M68K_MLIB_CPUS := $(call M68K_AWK,\ 38 (CPU_NAME == MLIB) $(M68K_MLIB_CPU), \ 39 "m"MLIB) 40 41# Make the default cpu the default multilib. 42M68K_MLIB_DEFAULT := $(call M68K_AWK, CPU == "$(target_cpu_default)", MLIB) 43 44ifeq ($(filter m$(M68K_MLIB_DEFAULT),$(M68K_MLIB_CPUS)),) 45$(error Error default cpu '$(target_cpu_default)' is not in multilib set '$(M68K_MLIB_CPUS)') 46endif 47 48# Sed arguments that convert mcpu=* arguments into canonical forms. 49# We want to use the legacy m68* options instead of the new -mcpu=68* 50# options when compiling multilibs because the former are recognised 51# by older binutils. 52CANONICALIZE_OPTIONS = -e 's|mcpu=68|m68|g' -e 's|mcpu=cpu32|mcpu32|g' 53 54MULTILIB_DIRNAMES := $(filter-out m$(M68K_MLIB_DEFAULT),$(M68K_MLIB_CPUS)) 55MULTILIB_OPTIONS := $(shell echo $(MULTILIB_DIRNAMES:m%=mcpu=%) \ 56 | sed -e 's| |/|g' $(CANONICALIZE_OPTIONS)) 57 58# Add subtarget specific options & dirs. 59MULTILIB_DIRNAMES += $(M68K_MLIB_DIRNAMES) 60MULTILIB_OPTIONS += $(M68K_MLIB_OPTIONS) 61 62MULTILIB_MATCHES := 63 64ifneq ($(M68K_ARCH),cf) 65# Map the new-style options to the legacy m68k ones. 66MULTILIB_MATCHES += m68000=mcpu?68000 m68000=march?68000 m68000=mc68000 \ 67 m68000=m68302 \ 68 m68020=mcpu?68020 m68020=march?68020 m68020=mc68020 \ 69 m68030=mcpu?68030 m68030=march?68030 \ 70 m68040=mcpu?68040 m68040=march?68040 \ 71 m68060=mcpu?68060 m68060=march?68060 \ 72 mcpu32=mcpu?cpu32 mcpu32=march?cpu32 mcpu32=m68332 73endif 74 75ifneq ($(M68K_ARCH),m68k) 76# Map the legacy ColdFire options to the new ones. 77MULTILIB_MATCHES += mcpu?5206=m5200 mcpu?5206e=m5206e mcpu?5208=m528x \ 78 mcpu?5307=m5300 mcpu?5307=m5307 \ 79 mcpu?5407=m5400 mcpu?5407=m5407 \ 80 mcpu?5475=mcfv4e 81# Map -march=* options to the representative -mcpu=* option. 82MULTILIB_MATCHES += mcpu?5206e=march?isaa mcpu?5208=march?isaaplus \ 83 mcpu?5407=march?isab 84endif 85 86# Match non-representative -mcpu options to their representative option. 87MULTILIB_MATCHES += \ 88 $(call M68K_AWK, \ 89 (CPU_NAME != MLIB) $(M68K_MLIB_CPU), \ 90 (match(MLIB, "^68") || MLIB == "cpu32" \ 91 ? "m"MLIB"=mcpu?"CPU_NAME \ 92 : "mcpu?"MLIB"=mcpu?"CPU_NAME)) 93 94MULTILIB_EXCEPTIONS := 95 96ifeq ($(firstword $(M68K_MLIB_OPTIONS)),msoft-float) 97# Exclude soft-float multilibs for targets that default to soft-float anyway. 98MULTILIB_EXCEPTIONS += $(call M68K_AWK,\ 99 (CPU_NAME == MLIB) $(M68K_MLIB_CPU) \ 100 && (((CPU ~ "^mcf") && !match(FLAGS, "FL_CF_FPU")) \ 101 || CPU == "cpu32" \ 102 || CPU == "m68000"), \ 103 "mcpu="MLIB"/msoft-float*") 104endif 105 106# Remove the default CPU from the explicit exceptions. 107MULTILIB_EXCEPTIONS := \ 108 $(patsubst mcpu=$(M68K_MLIB_DEFAULT)/%,%,$(MULTILIB_EXCEPTIONS)) 109 110# Convert all options to canonical form. 111MULTILIB_EXCEPTIONS := $(shell echo $(MULTILIB_EXCEPTIONS) | \ 112 sed $(CANONICALIZE_OPTIONS)) 113 114LIBGCC = stmp-multilib 115INSTALL_LIBGCC = install-multilib 116