1# Copyright (C) 2016-2020 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 27s-mlib: $(srcdir)/config/arm/t-multilib $(srcdir)/config/arm/t-aprofile $(srcdir)/config/arm/t-rmprofile 28 29MULTILIB_OPTIONS = 30MULTILIB_DIRNAMES = 31MULTILIB_EXCEPTIONS = 32MULTILIB_MATCHES = 33MULTILIB_REUSE = 34MULTILIB_REQUIRED = 35 36comma := , 37tm_multilib_list := $(subst $(comma), ,$(TM_MULTILIB_CONFIG)) 38 39HAS_APROFILE := $(filter aprofile,$(tm_multilib_list)) 40HAS_RMPROFILE := $(filter rmprofile,$(tm_multilib_list)) 41 42# Produce the combinatorial list of extensions. Where there are 43# multiple permutations for a combination, the ordering is the 44# selected by the forward ordering of the original list. This matches 45# the canonical ordering generated by the canonicalizer in the driver. 46# 47# For example, 48# $(call all_feat_combs, a b) 49# will produce 50# +a +a+b +b 51# but will not include 52# +b+a 53# The rule is recursive and can be called with any (reasonable) list of 54# extensions. 55all_feat_combs = +$(firstword $(1)) \ 56 $(if $(wordlist 2, $(words $(1)), $(1)), \ 57 $(foreach OPT, \ 58 $(call all_feat_combs, \ 59 $(wordlist 2, $(words $(1)), $(1))), \ 60 +$(firstword $(1))$(OPT) $(OPT)),) 61 62# Variables used. 63all_early_arch := armv5tej armv6 armv6j armv6k armv6z armv6kz \ 64 armv6zk armv6t2 iwmmxt iwmmxt2 65v7_a_arch_variants := $(call all_feat_combs, mp sec) 66v7_a_nosimd_variants := +fp +vfpv3 +vfpv3-d16-fp16 +vfpv3-fp16 +vfpv4-d16 +vfpv4 67v7_a_simd_variants := +simd +neon-fp16 +neon-vfpv4 68v7_r_sp_variants := +fp.sp +fp.sp+idiv +vfpv3xd-fp16 +vfpv3xd-fp16+idiv 69v7_r_dp_variants := +fp +fp+idiv +vfpv3-d16-fp16 +vfpv3-d16-fp16+idiv 70v7ve_nosimd_variants := +vfpv3-d16 +vfpv3 +vfpv3-d16-fp16 +vfpv3-fp16 +fp +vfpv4 71v7ve_vfpv3_simd_variants := +neon +neon-fp16 72v7ve_vfpv4_simd_variants := +simd 73v8_a_nosimd_variants := +crc 74v8_a_simd_variants := $(call all_feat_combs, simd crypto) 75v8_1_a_simd_variants := $(call all_feat_combs, simd crypto) 76v8_2_a_simd_variants := $(call all_feat_combs, simd fp16 fp16fml crypto dotprod i8mm bf16) 77v8_4_a_simd_variants := $(call all_feat_combs, simd fp16 crypto i8mm bf16) 78v8_5_a_simd_variants := $(call all_feat_combs, simd fp16 crypto i8mm bf16) 79v8_6_a_simd_variants := $(call all_feat_combs, simd fp16 crypto i8mm bf16) 80v8_r_nosimd_variants := +crc 81 82ifneq (,$(HAS_APROFILE)) 83include $(srcdir)/config/arm/t-aprofile 84endif 85ifneq (,$(HAS_RMPROFILE)) 86include $(srcdir)/config/arm/t-rmprofile 87endif 88SEP := $(and $(HAS_APROFILE),$(HAS_RMPROFILE),/) 89 90 91MULTILIB_OPTIONS += marm/mthumb 92MULTILIB_DIRNAMES += arm thumb 93 94MULTILIB_OPTIONS += march=armv5te+fp/march=armv7/march=armv7+fp/march=armv7-r+fp.sp/$(MULTI_ARCH_OPTS_A)$(SEP)$(MULTI_ARCH_OPTS_RM) 95MULTILIB_DIRNAMES += v5te v7 v7+fp v7-r+fp.sp $(MULTI_ARCH_DIRS_A) $(MULTI_ARCH_DIRS_RM) 96 97MULTILIB_OPTIONS += mfloat-abi=soft/mfloat-abi=softfp/mfloat-abi=hard 98MULTILIB_DIRNAMES += nofp softfp hard 99 100MULTILIB_REQUIRED += mthumb/mfloat-abi=soft 101MULTILIB_REQUIRED += marm/march=armv5te+fp/mfloat-abi=softfp 102MULTILIB_REQUIRED += marm/march=armv5te+fp/mfloat-abi=hard 103 104MULTILIB_REQUIRED += mthumb/march=armv7/mfloat-abi=soft 105MULTILIB_REQUIRED += mthumb/march=armv7+fp/mfloat-abi=softfp 106MULTILIB_REQUIRED += mthumb/march=armv7+fp/mfloat-abi=hard 107 108MULTILIB_REQUIRED += mthumb/march=armv7-r+fp.sp/mfloat-abi=softfp 109MULTILIB_REQUIRED += mthumb/march=armv7-r+fp.sp/mfloat-abi=hard 110 111# Map v7-r with double precision down onto common v7 code. 112MULTILIB_MATCHES += march?armv7=march?armv7-r 113MULTILIB_MATCHES += march?armv7=march?armv7-r+idiv 114MULTILIB_MATCHES += $(foreach ARCH, $(v7_r_dp_variants), \ 115 march?armv7+fp=march?armv7-r$(ARCH)) 116 117# Map v7-r single precision variants to v7-r with single precision. 118MULTILIB_MATCHES += $(foreach ARCH, \ 119 $(filter-out +fp.sp, $(v7_r_sp_variants)), \ 120 march?armv7-r+fp.sp=march?armv7-r$(ARCH)) 121 122MULTILIB_MATCHES += $(foreach ARCH, $(all_early_arch), \ 123 march?armv5te+fp=march?$(ARCH)+fp) 124# Map v8-r down onto common v7 code or v7-r sp. 125MULTILIB_MATCHES += march?armv7=march?armv8-r 126MULTILIB_MATCHES += $(foreach ARCH, $(v8_r_nosimd_variants), \ 127 march?armv7=march?armv8-r$(ARCH)) 128MULTILIB_MATCHES += $(foreach ARCH,+simd +crypto, \ 129 march?armv7+fp=march?armv8-r$(ARCH) \ 130 march?armv7+fp=march?armv8-r+crc$(ARCH)) 131MULTILIB_MATCHES += march?armv7-r+fp.sp=march?armv8-r+fp.sp 132MULTILIB_MATCHES += march?armv7-r+fp.sp=march?armv8-r+crc+fp.sp 133 134ifeq (,$(HAS_APROFILE)) 135# Map all v7-a 136 137MULTILIB_MATCHES += march?armv7=march?armv7-a 138 139MULTILIB_MATCHES += $(foreach ARCH, $(v7_a_arch_variants), \ 140 march?armv7=march?armv7-a$(ARCH)) 141 142MULTILIB_MATCHES += $(foreach ARCH, $(v7_a_nosimd_variants) $(v7_a_simd_variants), \ 143 march?armv7+fp=march?armv7-a$(ARCH)) 144 145MULTILIB_MATCHES += $(foreach ARCHVAR, $(v7_a_arch_variants), \ 146 $(foreach ARCH, $(v7_a_nosimd_variants) $(v7_a_simd_variants), \ 147 march?armv7+fp=march?armv7-a$(ARCHVAR)$(ARCH))) 148 149MULTILIB_MATCHES += march?armv7=march?armv7ve 150 151# ARMv7ve FP/SIMD variants: map down to v7+fp 152MULTILIB_MATCHES += $(foreach ARCH, $(v7ve_nosimd_variants) $(v7ve_vfpv3_simd_variants) $(v7ve_vfpv4_simd_variants), \ 153 march?armv7+fp=march?armv7ve$(ARCH)) 154 155# ARMv8 156MULTILIB_MATCHES += march?armv7=march?armv8-a 157MULTILIB_MATCHES += $(foreach ARCH, $(v8_a_nosimd_variants), \ 158 march?armv7=march?armv8-a$(ARCH)) 159 160# ARMv8 with SIMD 161MULTILIB_MATCHES += march?armv7+fp=march?armv8-a+crc+simd \ 162 $(foreach ARCH, $(v8_a_simd_variants), \ 163 march?armv7+fp=march?armv8-a$(ARCH) \ 164 march?armv7+fp=march?armv8-a+crc$(ARCH)) 165 166# Baseline v8.1-a 167MULTILIB_MATCHES += march?armv7=march?armv8.1-a 168 169# Map all v8.1-a SIMD variants 170MULTILIB_MATCHES += $(foreach ARCH, $(v8_1_a_simd_variants), \ 171 march?armv7+fp=march?armv8.1-a$(ARCH)) 172 173# Baseline v8.2-a: map down to baseline v8-a 174MULTILIB_MATCHES += march?armv7=march?armv8.2-a 175 176# Baseline v8.3-a: map down to baseline v8-a 177MULTILIB_MATCHES += march?armv7=march?armv8.3-a 178 179# Map all v8.2-a SIMD variants. v8.3-a SIMD variants have the same mappings 180MULTILIB_MATCHES += $(foreach ARCH, $(v8_2_a_simd_variants), \ 181 march?armv7+fp=march?armv8.2-a$(ARCH) \ 182 march?armv7+fp=march?armv8.3-a$(ARCH)) 183 184# Baseline v8.4-a: map down to baseline v8-a 185MULTILIB_MATCHES += march?armv7=march?armv8.4-a 186 187# Map all v8.4-a SIMD variants 188MULTILIB_MATCHES += $(foreach ARCH, $(v8_4_a_simd_variants), \ 189 march?armv7+fp=march?armv8.4-a$(ARCH)) 190 191# Baseline v8.5-a: map down to baseline v8-a 192MULTILIB_MATCHES += march?armv7=march?armv8.5-a 193 194# Map all v8.5-a SIMD variants 195MULTILIB_MATCHES += $(foreach ARCH, $(v8_5_a_simd_variants), \ 196 march?armv7+fp=march?armv8.5-a$(ARCH)) 197 198# Baseline v8.6-a: map down to baseline v8-a 199MULTILIB_MATCHES += march?armv7=march?armv8.6-a 200 201# Map all v8.6-a SIMD variants 202MULTILIB_MATCHES += $(foreach ARCH, $(v8_6_a_simd_variants), \ 203 march?armv7+fp=march?armv8.6-a$(ARCH)) 204 205endif # Not APROFILE. 206 207# Use Thumb libraries for everything. 208 209MULTILIB_REUSE += mthumb/march.armv7/mfloat-abi.soft=marm/march.armv7/mfloat-abi.soft 210 211MULTILIB_REUSE += $(foreach ABI, hard softfp, \ 212 $(foreach ARCH, armv7+fp armv7-r+fp\.sp, \ 213 mthumb/march.$(ARCH)/mfloat-abi.$(ABI)=marm/march.$(ARCH)/mfloat-abi.$(ABI))) 214 215# Softfp but no FP, use the soft-float libraries. 216MULTILIB_REUSE += $(foreach MODE, arm thumb, \ 217 $(foreach ARCH, armv7, \ 218 mthumb/march.$(ARCH)/mfloat-abi.soft=m$(MODE)/march.$(ARCH)/mfloat-abi.softfp)) 219 220