1# Copyright (C) 2012-2021 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 A-profile architecture. It should 22# not be used in conjunction with another make file fragment and 23# assumes --with-arch, --with-cpu, --with-fpu, --with-float, --with-mode 24# have their default values during the configure step. We enforce 25# this during the top-level configury. 26 27# Arch and FPU variants to build libraries with 28 29MULTI_ARCH_OPTS_A = march=armv7-a/march=armv7-a+fp/march=armv7-a+simd/march=armv7ve+simd/march=armv8-a/march=armv8-a+simd 30MULTI_ARCH_DIRS_A = v7-a v7-a+fp v7-a+simd v7ve+simd v8-a v8-a+simd 31 32# ARMv7-A - build nofp, fp-d16 and SIMD variants 33 34MULTILIB_REQUIRED += mthumb/march=armv7-a/mfloat-abi=soft 35MULTILIB_REQUIRED += mthumb/march=armv7-a+fp/mfloat-abi=hard 36MULTILIB_REQUIRED += mthumb/march=armv7-a+fp/mfloat-abi=softfp 37MULTILIB_REQUIRED += mthumb/march=armv7-a+simd/mfloat-abi=hard 38MULTILIB_REQUIRED += mthumb/march=armv7-a+simd/mfloat-abi=softfp 39 40# ARMv7VE - only build a SIMD (+VFPv4) variant. 41MULTILIB_REQUIRED += mthumb/march=armv7ve+simd/mfloat-abi=hard 42MULTILIB_REQUIRED += mthumb/march=armv7ve+simd/mfloat-abi=softfp 43 44# ARMv8-A - build nofp and SIMD variants. 45MULTILIB_REQUIRED += mthumb/march=armv8-a/mfloat-abi=soft 46MULTILIB_REQUIRED += mthumb/march=armv8-a+simd/mfloat-abi=hard 47MULTILIB_REQUIRED += mthumb/march=armv8-a+simd/mfloat-abi=softfp 48 49# Matches 50 51# Arch Matches 52# Map all basic v7-a arch extensions to v7-a 53MULTILIB_MATCHES += $(foreach ARCH, $(v7_a_arch_variants), \ 54 march?armv7-a=march?armv7-a$(ARCH)) 55 56# Map all v7-a FP variants to vfpv3-d16 (+fp) 57MULTILIB_MATCHES += $(foreach ARCH, $(filter-out +fp, $(v7_a_nosimd_variants)), \ 58 march?armv7-a+fp=march?armv7-a$(ARCH)) 59 60MULTILIB_MATCHES += $(foreach ARCHVAR, $(v7_a_arch_variants), \ 61 $(foreach ARCH, $(v7_a_nosimd_variants), \ 62 march?armv7-a+fp=march?armv7-a$(ARCHVAR)$(ARCH))) 63 64# Map all v7-a SIMD variants to neon-vfpv3 (+simd) 65MULTILIB_MATCHES += $(foreach ARCH, $(filter-out +simd, $(v7_a_simd_variants)), \ 66 march?armv7-a+simd=march?armv7-a$(ARCH)) 67 68MULTILIB_MATCHES += $(foreach ARCHVAR, $(v7_a_arch_variants), \ 69 $(foreach ARCH, $(v7_a_simd_variants), \ 70 march?armv7-a+simd=march?armv7-a$(ARCHVAR)$(ARCH))) 71 72# Neither FP nor SIMD: map v7ve to v7-a 73MULTILIB_MATCHES += march?armv7-a=march?armv7ve 74 75# ARMv7ve FP-only variants: map down to v7-a+fp 76MULTILIB_MATCHES += $(foreach ARCH, $(v7ve_nosimd_variants), \ 77 march?armv7-a+fp=march?armv7ve$(ARCH)) 78 79# ARMv7ve with SIMD, but SIMD is less capable than the default - map down to v7-a+simd 80MULTILIB_MATCHES += $(foreach ARCH, $(v7ve_vfpv3_simd_variants), \ 81 march?armv7-a+simd=march?armv7ve$(ARCH)) 82 83# ARMv8 without SIMD: map down to base architecture 84MULTILIB_MATCHES += $(foreach ARCH, $(v8_a_nosimd_variants), \ 85 march?armv8-a=march?armv8-a$(ARCH)) 86 87# ARMv8 with SIMD: map down to base arch + simd 88MULTILIB_MATCHES += march?armv8-a+simd=march?armv8-a+crc+simd \ 89 $(foreach ARCH, $(filter-out +simd, $(v8_a_simd_variants)), \ 90 march?armv8-a+simd=march?armv8-a$(ARCH) \ 91 march?armv8-a+simd=march?armv8-a+crc$(ARCH)) 92 93# Baseline v8.1-a: map down to baseline v8-a 94MULTILIB_MATCHES += march?armv8-a=march?armv8.1-a 95 96# Map all v8.1-a SIMD variants to v8-a+simd 97MULTILIB_MATCHES += $(foreach ARCH, $(v8_1_a_simd_variants), \ 98 march?armv8-a+simd=march?armv8.1-a$(ARCH)) 99 100# Baseline v8.2-a: map down to baseline v8-a 101MULTILIB_MATCHES += march?armv8-a=march?armv8.2-a 102 103# Baseline v8.3-a: map down to baseline v8-a 104MULTILIB_MATCHES += march?armv8-a=march?armv8.3-a 105 106# Map all v8.2-a and v8.3-a SIMD variants to v8-a+simd 107MULTILIB_MATCHES += $(foreach ARCH, $(v8_2_a_simd_variants), \ 108 march?armv8-a+simd=march?armv8.2-a$(ARCH) \ 109 march?armv8-a+simd=march?armv8.3-a$(ARCH)) 110 111# Baseline v8.4-a: map down to baseline v8-a 112MULTILIB_MATCHES += march?armv8-a=march?armv8.4-a 113 114# Map all v8.4-a SIMD variants to v8-a+simd 115MULTILIB_MATCHES += $(foreach ARCH, $(v8_4_a_simd_variants), \ 116 march?armv8-a+simd=march?armv8.4-a$(ARCH)) 117 118# Baseline v8.5-a: map down to baseline v8-a 119MULTILIB_MATCHES += march?armv8-a=march?armv8.5-a 120 121# Map all v8.5-a SIMD variants to v8-a+simd 122MULTILIB_MATCHES += $(foreach ARCH, $(v8_5_a_simd_variants), \ 123 march?armv8-a+simd=march?armv8.5-a$(ARCH)) 124 125# Baseline v8.6-a: map down to baseline v8-a 126MULTILIB_MATCHES += march?armv8-a=march?armv8.6-a 127 128# Map all v8.6-a SIMD variants to v8-a+simd 129MULTILIB_MATCHES += $(foreach ARCH, $(v8_6_a_simd_variants), \ 130 march?armv8-a+simd=march?armv8.6-a$(ARCH)) 131 132# Use Thumb libraries for everything. 133 134MULTILIB_REUSE += mthumb/march.armv7-a/mfloat-abi.soft=marm/march.armv7-a/mfloat-abi.soft 135 136MULTILIB_REUSE += mthumb/march.armv8-a/mfloat-abi.soft=marm/march.armv8-a/mfloat-abi.soft 137 138MULTILIB_REUSE += $(foreach ABI, hard softfp, \ 139 $(foreach ARCH, armv7-a+fp armv7-a+simd armv7ve+simd armv8-a+simd, \ 140 mthumb/march.$(ARCH)/mfloat-abi.$(ABI)=marm/march.$(ARCH)/mfloat-abi.$(ABI))) 141 142# Softfp but no FP, use the soft-float libraries. 143MULTILIB_REUSE += $(foreach MODE, arm thumb, \ 144 $(foreach ARCH, armv7-a armv8-a, \ 145 mthumb/march.$(ARCH)/mfloat-abi.soft=m$(MODE)/march.$(ARCH)/mfloat-abi.softfp)) 146