1# multilibs -*- mode:Makefile -*- 2# 3# Copyright (C) 2007-2015 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 48MULTILIB_DIRNAMES := $(filter-out m$(M68K_MLIB_DEFAULT),$(M68K_MLIB_CPUS)) 49MULTILIB_OPTIONS := $(shell echo $(MULTILIB_DIRNAMES:m%=mcpu=%) \ 50 | sed -e 's| |/|g' ) 51 52# Add subtarget specific options & dirs. 53MULTILIB_DIRNAMES += $(M68K_MLIB_DIRNAMES) 54MULTILIB_OPTIONS += $(M68K_MLIB_OPTIONS) 55 56MULTILIB_MATCHES := 57 58ifneq ($(M68K_ARCH),cf) 59# Map -march=* options to the representative -mcpu=* option. 60MULTILIB_MATCHES += mcpu?68000=march?68000 \ 61 mcpu?68020=march?68020 \ 62 mcpu?68030=march?68030 \ 63 mcpu?68040=march?68040 \ 64 mcpu?68060=march?68060 \ 65 mcpu?cpu32=march?cpu32 66endif 67 68ifneq ($(M68K_ARCH),m68k) 69# Map -march=* options to the representative -mcpu=* option. 70MULTILIB_MATCHES += mcpu?5206e=march?isaa mcpu?5208=march?isaaplus \ 71 mcpu?5407=march?isab 72endif 73 74# Match non-representative -mcpu options to their representative option. 75MULTILIB_MATCHES += \ 76 $(call M68K_AWK, \ 77 (CPU_NAME != MLIB) $(M68K_MLIB_CPU), \ 78 ("mcpu?"MLIB"=mcpu?"CPU_NAME)) 79 80MULTILIB_EXCEPTIONS := 81 82ifeq ($(firstword $(M68K_MLIB_OPTIONS)),msoft-float) 83# Exclude soft-float multilibs for targets that default to soft-float anyway. 84MULTILIB_EXCEPTIONS += $(call M68K_AWK,\ 85 (CPU_NAME == MLIB) $(M68K_MLIB_CPU) \ 86 && (((CPU ~ "^mcf") && !match(FLAGS, "FL_CF_FPU")) \ 87 || CPU == "cpu32" \ 88 || CPU == "m68000"), \ 89 "mcpu="MLIB"/msoft-float*") 90endif 91 92# Remove the default CPU from the explicit exceptions. 93MULTILIB_EXCEPTIONS := \ 94 $(patsubst mcpu=$(M68K_MLIB_DEFAULT)/%,%,$(MULTILIB_EXCEPTIONS)) 95