1# Copyright (C) 2016-2018 Free Software Foundation, Inc. 2# 3# This file is part of GCC. 4# 5# GCC is free software; you can redistribute it and/or modify 6# it under the terms of the GNU General Public License as published by 7# the Free Software Foundation; either version 3, or (at your option) 8# any later version. 9# 10# GCC is distributed in the hope that it will be useful, 11# but WITHOUT ANY WARRANTY; without even the implied warranty of 12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13# GNU General Public License for more details. 14# 15# You should have received a copy of the GNU General Public License 16# along with GCC; see the file COPYING3. If not see 17# <http://www.gnu.org/licenses/>. 18 19# This is a target makefile fragment that attempts to get 20# multilibs built for the range of CPU's, FPU's and ABI's that 21# are relevant for the ARM architecture. It should not be used in 22# conjunction with another make file fragment and assumes --with-arch, 23# --with-cpu, --with-fpu, --with-float, --with-mode have their default 24# values during the configure step. We enforce this during the 25# top-level configury. 26 27MULTILIB_OPTIONS = 28MULTILIB_DIRNAMES = 29MULTILIB_EXCEPTIONS = 30MULTILIB_MATCHES = 31MULTILIB_REUSE = 32MULTILIB_REQUIRED = 33 34comma := , 35tm_multilib_list := $(subst $(comma), ,$(TM_MULTILIB_CONFIG)) 36 37HAS_APROFILE := $(filter aprofile,$(tm_multilib_list)) 38HAS_RMPROFILE := $(filter rmprofile,$(tm_multilib_list)) 39 40# Produce the combinatorial list of extensions. Where there are 41# multiple permutations for a combination, the ordering is the 42# selected by the forward ordering of the original list. This matches 43# the canonical ordering generated by the canonicalizer in the driver. 44# 45# For example, 46# $(call all_feat_combs, a b) 47# will produce 48# +a +a+b +b 49# but will not include 50# +b+a 51# The rule is recursive and can be called with any (reasonable) list of 52# extensions. 53all_feat_combs = +$(firstword $(1)) \ 54 $(if $(wordlist 2, $(words $(1)), $(1)), \ 55 $(foreach OPT, \ 56 $(call all_feat_combs, \ 57 $(wordlist 2, $(words $(1)), $(1))), \ 58 +$(firstword $(1))$(OPT) $(OPT)),) 59 60# Variables used. 61all_early_arch := armv5e armv5tej armv6 armv6j armv6k armv6z armv6kz \ 62 armv6zk armv6t2 iwmmxt iwmmxt2 63v7_a_arch_variants := $(call all_feat_combs, mp sec) 64v7_a_nosimd_variants := +fp +vfpv3 +vfpv3-d16-fp16 +vfpv3-fp16 +vfpv4-d16 +vfpv4 65v7_a_simd_variants := +simd +neon-fp16 +neon-vfpv4 66v7ve_nosimd_variants := +vfpv3-d16 +vfpv3 +vfpv3-d16-fp16 +vfpv3-fp16 +fp +vfpv4 67v7ve_vfpv3_simd_variants := +neon +neon-fp16 68v7ve_vfpv4_simd_variants := +simd 69v8_a_nosimd_variants := +crc 70v8_a_simd_variants := $(call all_feat_combs, simd crypto) 71v8_1_a_simd_variants := $(call all_feat_combs, simd crypto) 72v8_2_a_simd_variants := $(call all_feat_combs, simd fp16 fp16fml crypto dotprod) 73v8_4_a_simd_variants := $(call all_feat_combs, simd fp16 crypto) 74v8_r_nosimd_variants := +crc 75 76ifneq (,$(HAS_APROFILE)) 77include $(srcdir)/config/arm/t-aprofile 78endif 79ifneq (,$(HAS_RMPROFILE)) 80include $(srcdir)/config/arm/t-rmprofile 81endif 82SEP := $(and $(HAS_APROFILE),$(HAS_RMPROFILE),/) 83 84 85MULTILIB_OPTIONS += marm/mthumb 86MULTILIB_DIRNAMES += arm thumb 87 88MULTILIB_OPTIONS += march=armv5te+fp/march=armv7/march=armv7+fp/$(MULTI_ARCH_OPTS_A)$(SEP)$(MULTI_ARCH_OPTS_RM) 89MULTILIB_DIRNAMES += v5te v7 v7+fp $(MULTI_ARCH_DIRS_A) $(MULTI_ARCH_DIRS_RM) 90 91MULTILIB_OPTIONS += mfloat-abi=soft/mfloat-abi=softfp/mfloat-abi=hard 92MULTILIB_DIRNAMES += nofp softfp hard 93 94MULTILIB_REQUIRED += mthumb/mfloat-abi=soft 95MULTILIB_REQUIRED += marm/march=armv5te+fp/mfloat-abi=softfp 96MULTILIB_REQUIRED += marm/march=armv5te+fp/mfloat-abi=hard 97 98MULTILIB_REQUIRED += mthumb/march=armv7/mfloat-abi=soft 99MULTILIB_REQUIRED += mthumb/march=armv7+fp/mfloat-abi=softfp 100MULTILIB_REQUIRED += mthumb/march=armv7+fp/mfloat-abi=hard 101 102# Map v7-r down onto common v7 code. 103MULTILIB_MATCHES += march?armv7=march?armv7-r 104MULTILIB_MATCHES += march?armv7=march?armv7-r+idiv 105MULTILIB_MATCHES += march?armv7+fp=march?armv7-r+fp 106MULTILIB_MATCHES += march?armv7+fp=march?armv7-r+fp+idiv 107 108MULTILIB_MATCHES += $(foreach ARCH, $(all_early_arch), \ 109 march?armv5te+fp=march?$(ARCH)+fp) 110# Map v8-r down onto common v7 code. 111MULTILIB_MATCHES += march?armv7=march?armv8-r 112MULTILIB_MATCHES += $(foreach ARCH, $(v8_r_nosimd_variants), \ 113 march?armv7=march?armv8-r$(ARCH)) 114MULTILIB_MATCHES += $(foreach ARCH,+simd +crypto, \ 115 march?armv7+fp=march?armv8-r$(ARCH) \ 116 march?armv7+fp=march?armv8-r+crc$(ARCH)) 117 118 119ifeq (,$(HAS_APROFILE)) 120# Map all v7-a 121MULTILIB_MATCHES += march?armv7=march?armv7-a 122MULTILIB_MATCHES += $(foreach ARCH, $(v7_a_nosimd_variants) $(v7_a_simd_variants), \ 123 march?armv7+fp=march?armv7-a$(ARCH)) 124 125MULTILIB_MATCHES += march?armv7=march?armv7ve 126 127# ARMv7ve FP/SIMD variants: map down to v7+fp 128MULTILIB_MATCHES += $(foreach ARCH, $(v7ve_nosimd_variants) $(v7ve_vfpv3_simd_variants) $(v7ve_vfpv4_simd_variants), \ 129 march?armv7+fp=march?armv7ve$(ARCH)) 130 131# ARMv8 132MULTILIB_MATCHES += march?armv7=march?armv8-a 133MULTILIB_MATCHES += $(foreach ARCH, $(v8_a_nosimd_variants), \ 134 march?armv7=march?armv8-a$(ARCH)) 135 136# ARMv8 with SIMD 137MULTILIB_MATCHES += march?armv7+fp=march?armv8-a+crc+simd \ 138 $(foreach ARCH, $(v8_a_simd_variants), \ 139 march?armv7+fp=march?armv8-a$(ARCH) \ 140 march?armv7+fp=march?armv8-a+crc$(ARCH)) 141 142# Baseline v8.1-a 143MULTILIB_MATCHES += march?armv7=march?armv8.1-a 144 145# Map all v8.1-a SIMD variants 146MULTILIB_MATCHES += $(foreach ARCH, $(v8_1_a_simd_variants), \ 147 march?armv7+fp=march?armv8.1-a$(ARCH)) 148 149# Baseline v8.2-a: map down to baseline v8-a 150MULTILIB_MATCHES += march?armv7=march?armv8.2-a 151 152# Baseline v8.3-a: map down to baseline v8-a 153MULTILIB_MATCHES += march?armv7=march?armv8.3-a 154 155# Map all v8.2-a SIMD variants. v8.3-a SIMD variants have the same mappings 156MULTILIB_MATCHES += $(foreach ARCH, $(v8_2_a_simd_variants), \ 157 march?armv7+fp=march?armv8.2-a$(ARCH) \ 158 march?armv7+fp=march?armv8.3-a$(ARCH)) 159 160# Baseline v8.4-a: map down to baseline v8-a 161MULTILIB_MATCHES += march?armv7=march?armv8.4-a 162 163# Map all v8.4-a SIMD variants 164MULTILIB_MATCHES += $(foreach ARCH, $(v8_4_a_simd_variants), \ 165 march?armv7+fp=march?armv8.4-a$(ARCH)) 166 167# Use Thumb libraries for everything. 168 169MULTILIB_REUSE += mthumb/march.armv7/mfloat-abi.soft=marm/march.armv7/mfloat-abi.soft 170 171MULTILIB_REUSE += $(foreach ABI, hard softfp, \ 172 $(foreach ARCH, armv7+fp, \ 173 mthumb/march.$(ARCH)/mfloat-abi.$(ABI)=marm/march.$(ARCH)/mfloat-abi.$(ABI))) 174 175# Softfp but no FP, use the soft-float libraries. 176MULTILIB_REUSE += $(foreach MODE, arm thumb, \ 177 $(foreach ARCH, armv7, \ 178 mthumb/march.$(ARCH)/mfloat-abi.soft=m$(MODE)/march.$(ARCH)/mfloat-abi.softfp)) 179 180endif # Not APROFILE.