| # multilibs -*- mode:Makefile -*- |
| # |
| # Copyright (C) 2007-2020 Free Software Foundation, Inc. |
| # |
| # This file is part of GCC. |
| # |
| # GCC is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 3, or (at your option) |
| # any later version. |
| # |
| # GCC is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with GCC; see the file COPYING3. If not see |
| # <http://www.gnu.org/licenses/>. |
| |
| # An awk command to extract lines from the m68k-devices.def file that |
| # match $1 and then print the string defined by $2. Leading and |
| # trailing whitespace is removed. $1 & $2 can make use of |
| # CPU -- the cpu identifier (has leading 'm'/'mcf') |
| # FLAGS -- the cpu capability flags |
| # CPU_NAME -- the cpu name (has no leading m/mcf) |
| # MLIB -- the multilib cpu name (no leading m/mcf) |
| # This is intended to be used as $(call M68K_AWK,predicate,string) |
| M68K_AWK = $(strip $(shell $(AWK) 'BEGIN { FS="[ \t]*[,()][ \t]*"; ORS=" " }; \ |
| /^M68K_DEVICE/ { CPU=$$3; FLAGS=$$8; \ |
| CPU_NAME=substr($$2,2,length($$2)-2); \ |
| MLIB=substr($$5,2,length($$5)-2); \ |
| if ($1) print $2 }' $(srcdir)/config/m68k/m68k-devices.def)) |
| |
| # Add a multilib for each distinct architecture. M68K_MLIB_CPU, if defined, |
| # adds additional restrictions. |
| M68K_MLIB_CPUS := $(call M68K_AWK,\ |
| (CPU_NAME == MLIB) $(M68K_MLIB_CPU), \ |
| "m"MLIB) |
| |
| # Make the default cpu the default multilib. |
| M68K_MLIB_DEFAULT := $(call M68K_AWK, CPU == "$(target_cpu_default)", MLIB) |
| |
| ifeq ($(filter m$(M68K_MLIB_DEFAULT),$(M68K_MLIB_CPUS)),) |
| $(error Error default cpu '$(target_cpu_default)' is not in multilib set '$(M68K_MLIB_CPUS)') |
| endif |
| |
| MULTILIB_DIRNAMES := $(filter-out m$(M68K_MLIB_DEFAULT),$(M68K_MLIB_CPUS)) |
| MULTILIB_OPTIONS := $(shell echo $(MULTILIB_DIRNAMES:m%=mcpu=%) \ |
| | sed -e 's| |/|g' ) |
| |
| # Add subtarget specific options & dirs. |
| MULTILIB_DIRNAMES += $(M68K_MLIB_DIRNAMES) |
| MULTILIB_OPTIONS += $(M68K_MLIB_OPTIONS) |
| |
| MULTILIB_MATCHES := |
| |
| ifneq ($(M68K_ARCH),cf) |
| # Map -march=* options to the representative -mcpu=* option. |
| MULTILIB_MATCHES += mcpu?68000=march?68000 \ |
| mcpu?68020=march?68020 \ |
| mcpu?68030=march?68030 \ |
| mcpu?68040=march?68040 \ |
| mcpu?68060=march?68060 \ |
| mcpu?cpu32=march?cpu32 |
| endif |
| |
| ifneq ($(M68K_ARCH),m68k) |
| # Map -march=* options to the representative -mcpu=* option. |
| MULTILIB_MATCHES += mcpu?5206e=march?isaa mcpu?5208=march?isaaplus \ |
| mcpu?5407=march?isab |
| endif |
| |
| # Match non-representative -mcpu options to their representative option. |
| MULTILIB_MATCHES += \ |
| $(call M68K_AWK, \ |
| (CPU_NAME != MLIB) $(M68K_MLIB_CPU), \ |
| ("mcpu?"MLIB"=mcpu?"CPU_NAME)) |
| |
| MULTILIB_EXCEPTIONS := |
| |
| ifeq ($(firstword $(M68K_MLIB_OPTIONS)),msoft-float) |
| # Exclude soft-float multilibs for targets that default to soft-float anyway. |
| MULTILIB_EXCEPTIONS += $(call M68K_AWK,\ |
| (CPU_NAME == MLIB) $(M68K_MLIB_CPU) \ |
| && (((CPU ~ "^mcf") && !match(FLAGS, "FL_CF_FPU")) \ |
| || CPU == "cpu32" \ |
| || CPU == "m68000"), \ |
| "mcpu="MLIB"/msoft-float*") |
| endif |
| |
| # Remove the default CPU from the explicit exceptions. |
| MULTILIB_EXCEPTIONS := \ |
| $(patsubst mcpu=$(M68K_MLIB_DEFAULT)/%,%,$(MULTILIB_EXCEPTIONS)) |