| # Copyright (C) 2016-2026 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/>. | |
| # This is a target makefile fragment that attempts to get | |
| # multilibs built for the range of CPU's, FPU's and ABI's that | |
| # are relevant for the ARM architecture. It should not be used in | |
| # conjunction with another make file fragment and assumes --with-arch, | |
| # --with-cpu, --with-fpu, --with-float, --with-mode have their default | |
| # values during the configure step. We enforce this during the | |
| # top-level configury. | |
| s-mlib: $(srcdir)/config/arm/t-multilib $(srcdir)/config/arm/t-aprofile $(srcdir)/config/arm/t-rmprofile | |
| MULTILIB_OPTIONS = | |
| MULTILIB_DIRNAMES = | |
| MULTILIB_EXCEPTIONS = | |
| MULTILIB_MATCHES = | |
| MULTILIB_REUSE = | |
| MULTILIB_REQUIRED = | |
| comma := , | |
| tm_multilib_list := $(subst $(comma), ,$(TM_MULTILIB_CONFIG)) | |
| HAS_APROFILE := $(filter aprofile,$(tm_multilib_list)) | |
| HAS_RMPROFILE := $(filter rmprofile,$(tm_multilib_list)) | |
| # Produce the combinatorial list of extensions. Where there are | |
| # multiple permutations for a combination, the ordering is the | |
| # selected by the forward ordering of the original list. This matches | |
| # the canonical ordering generated by the canonicalizer in the driver. | |
| # | |
| # For example, | |
| # $(call all_feat_combs, a b) | |
| # will produce | |
| # +a +a+b +b | |
| # but will not include | |
| # +b+a | |
| # The rule is recursive and can be called with any (reasonable) list of | |
| # extensions. | |
| all_feat_combs = +$(firstword $(1)) \ | |
| $(if $(wordlist 2, $(words $(1)), $(1)), \ | |
| $(foreach OPT, \ | |
| $(call all_feat_combs, \ | |
| $(wordlist 2, $(words $(1)), $(1))), \ | |
| +$(firstword $(1))$(OPT) $(OPT)),) | |
| # Variables used. | |
| all_early_arch := armv5tej armv6 armv6j armv6k armv6z armv6kz \ | |
| armv6zk armv6t2 iwmmxt iwmmxt2 | |
| v7_a_arch_variants := $(call all_feat_combs, mp sec) | |
| v7_a_nosimd_variants := +fp +vfpv3 +vfpv3-d16-fp16 +vfpv3-fp16 +vfpv4-d16 +vfpv4 | |
| v7_a_simd_variants := +simd +neon-fp16 +neon-vfpv4 | |
| v7_r_sp_variants := +fp.sp +fp.sp+idiv +vfpv3xd-fp16 +vfpv3xd-fp16+idiv | |
| v7_r_dp_variants := +fp +fp+idiv +vfpv3-d16-fp16 +vfpv3-d16-fp16+idiv | |
| v7ve_nosimd_variants := +vfpv3-d16 +vfpv3 +vfpv3-d16-fp16 +vfpv3-fp16 +fp +vfpv4 | |
| v7ve_vfpv3_simd_variants := +neon +neon-fp16 | |
| v7ve_vfpv4_simd_variants := +simd | |
| v8_a_nosimd_variants := +crc | |
| v8_a_simd_variants := $(call all_feat_combs, simd crypto) | |
| v8_1_a_simd_variants := $(call all_feat_combs, simd crypto) | |
| v8_2_a_simd_variants := $(call all_feat_combs, simd fp16 fp16fml crypto dotprod i8mm bf16) | |
| v8_4_a_simd_variants := $(call all_feat_combs, simd fp16 crypto i8mm bf16) | |
| v8_5_a_simd_variants := $(call all_feat_combs, simd fp16 crypto i8mm bf16) | |
| v8_6_a_simd_variants := $(call all_feat_combs, simd fp16 crypto i8mm bf16) | |
| v8_r_nosimd_variants := +crc | |
| v9_a_simd_variants := $(call all_feat_combs, simd fp16 crypto i8mm bf16) | |
| ifneq (,$(HAS_APROFILE)) | |
| include $(srcdir)/config/arm/t-aprofile | |
| endif | |
| ifneq (,$(HAS_RMPROFILE)) | |
| include $(srcdir)/config/arm/t-rmprofile | |
| endif | |
| SEP := $(and $(HAS_APROFILE),$(HAS_RMPROFILE),/) | |
| MULTILIB_OPTIONS += marm/mthumb | |
| MULTILIB_DIRNAMES += arm thumb | |
| MULTILIB_OPTIONS += march=armv5te+fp/march=armv7/march=armv7+fp/march=armv7-r+fp.sp/$(MULTI_ARCH_OPTS_A)$(SEP)$(MULTI_ARCH_OPTS_RM) | |
| MULTILIB_DIRNAMES += v5te v7 v7+fp v7-r+fp.sp $(MULTI_ARCH_DIRS_A) $(MULTI_ARCH_DIRS_RM) | |
| MULTILIB_OPTIONS += mfloat-abi=soft/mfloat-abi=softfp/mfloat-abi=hard | |
| MULTILIB_DIRNAMES += nofp softfp hard | |
| MULTILIB_REQUIRED += mthumb/mfloat-abi=soft | |
| MULTILIB_REQUIRED += marm/march=armv5te+fp/mfloat-abi=softfp | |
| MULTILIB_REQUIRED += marm/march=armv5te+fp/mfloat-abi=hard | |
| MULTILIB_REQUIRED += mthumb/march=armv7/mfloat-abi=soft | |
| MULTILIB_REQUIRED += mthumb/march=armv7+fp/mfloat-abi=softfp | |
| MULTILIB_REQUIRED += mthumb/march=armv7+fp/mfloat-abi=hard | |
| MULTILIB_REQUIRED += mthumb/march=armv7-r+fp.sp/mfloat-abi=softfp | |
| MULTILIB_REQUIRED += mthumb/march=armv7-r+fp.sp/mfloat-abi=hard | |
| # Map v7-r with double precision down onto common v7 code. | |
| MULTILIB_MATCHES += march?armv7=march?armv7-r | |
| MULTILIB_MATCHES += march?armv7=march?armv7-r+idiv | |
| MULTILIB_MATCHES += $(foreach ARCH, $(v7_r_dp_variants), \ | |
| march?armv7+fp=march?armv7-r$(ARCH)) | |
| # Map v7-r single precision variants to v7-r with single precision. | |
| MULTILIB_MATCHES += $(foreach ARCH, \ | |
| $(filter-out +fp.sp, $(v7_r_sp_variants)), \ | |
| march?armv7-r+fp.sp=march?armv7-r$(ARCH)) | |
| MULTILIB_MATCHES += $(foreach ARCH, $(all_early_arch), \ | |
| march?armv5te+fp=march?$(ARCH)+fp) | |
| # Map v8-r down onto common v7 code or v7-r sp. | |
| MULTILIB_MATCHES += march?armv7=march?armv8-r | |
| MULTILIB_MATCHES += $(foreach ARCH, $(v8_r_nosimd_variants), \ | |
| march?armv7=march?armv8-r$(ARCH)) | |
| MULTILIB_MATCHES += $(foreach ARCH,+simd +crypto, \ | |
| march?armv7+fp=march?armv8-r$(ARCH) \ | |
| march?armv7+fp=march?armv8-r+crc$(ARCH)) | |
| MULTILIB_MATCHES += march?armv7-r+fp.sp=march?armv8-r+fp.sp | |
| MULTILIB_MATCHES += march?armv7-r+fp.sp=march?armv8-r+crc+fp.sp | |
| ifeq (,$(HAS_APROFILE)) | |
| # Map all v7-a | |
| MULTILIB_MATCHES += march?armv7=march?armv7-a | |
| MULTILIB_MATCHES += $(foreach ARCH, $(v7_a_arch_variants), \ | |
| march?armv7=march?armv7-a$(ARCH)) | |
| MULTILIB_MATCHES += $(foreach ARCH, $(v7_a_nosimd_variants) $(v7_a_simd_variants), \ | |
| march?armv7+fp=march?armv7-a$(ARCH)) | |
| MULTILIB_MATCHES += $(foreach ARCHVAR, $(v7_a_arch_variants), \ | |
| $(foreach ARCH, $(v7_a_nosimd_variants) $(v7_a_simd_variants), \ | |
| march?armv7+fp=march?armv7-a$(ARCHVAR)$(ARCH))) | |
| MULTILIB_MATCHES += march?armv7=march?armv7ve | |
| # ARMv7ve FP/SIMD variants: map down to v7+fp | |
| MULTILIB_MATCHES += $(foreach ARCH, $(v7ve_nosimd_variants) $(v7ve_vfpv3_simd_variants) $(v7ve_vfpv4_simd_variants), \ | |
| march?armv7+fp=march?armv7ve$(ARCH)) | |
| # ARMv8 | |
| MULTILIB_MATCHES += march?armv7=march?armv8-a | |
| MULTILIB_MATCHES += $(foreach ARCH, $(v8_a_nosimd_variants), \ | |
| march?armv7=march?armv8-a$(ARCH)) | |
| # ARMv8 with SIMD | |
| MULTILIB_MATCHES += march?armv7+fp=march?armv8-a+crc+simd \ | |
| $(foreach ARCH, $(v8_a_simd_variants), \ | |
| march?armv7+fp=march?armv8-a$(ARCH) \ | |
| march?armv7+fp=march?armv8-a+crc$(ARCH)) | |
| # Baseline v8.1-a | |
| MULTILIB_MATCHES += march?armv7=march?armv8.1-a | |
| # Map all v8.1-a SIMD variants | |
| MULTILIB_MATCHES += $(foreach ARCH, $(v8_1_a_simd_variants), \ | |
| march?armv7+fp=march?armv8.1-a$(ARCH)) | |
| # Baseline v8.2-a: map down to baseline v8-a | |
| MULTILIB_MATCHES += march?armv7=march?armv8.2-a | |
| # Baseline v8.3-a: map down to baseline v8-a | |
| MULTILIB_MATCHES += march?armv7=march?armv8.3-a | |
| # Map all v8.2-a SIMD variants. v8.3-a SIMD variants have the same mappings | |
| MULTILIB_MATCHES += $(foreach ARCH, $(v8_2_a_simd_variants), \ | |
| march?armv7+fp=march?armv8.2-a$(ARCH) \ | |
| march?armv7+fp=march?armv8.3-a$(ARCH)) | |
| # Baseline v8.4-a: map down to baseline v8-a | |
| MULTILIB_MATCHES += march?armv7=march?armv8.4-a | |
| # Map all v8.4-a SIMD variants | |
| MULTILIB_MATCHES += $(foreach ARCH, $(v8_4_a_simd_variants), \ | |
| march?armv7+fp=march?armv8.4-a$(ARCH)) | |
| # Baseline v8.5-a: map down to baseline v8-a | |
| MULTILIB_MATCHES += march?armv7=march?armv8.5-a | |
| # Map all v8.5-a SIMD variants | |
| MULTILIB_MATCHES += $(foreach ARCH, $(v8_5_a_simd_variants), \ | |
| march?armv7+fp=march?armv8.5-a$(ARCH)) | |
| # Baseline v8.6-a: map down to baseline v8-a | |
| MULTILIB_MATCHES += march?armv7=march?armv8.6-a | |
| # Map all v8.6-a SIMD variants | |
| MULTILIB_MATCHES += $(foreach ARCH, $(v8_6_a_simd_variants), \ | |
| march?armv7+fp=march?armv8.6-a$(ARCH)) | |
| # Armv9 | |
| MULTILIB_MATCHES += march?armv7=march?armv9-a | |
| # Armv9 with SIMD | |
| MULTILIB_MATCHES += $(foreach ARCH, $(v9_a_simd_variants), \ | |
| march?armv7+fp=march?armv9-a$(ARCH)) | |
| endif # Not APROFILE. | |
| # Use Thumb libraries for everything. | |
| MULTILIB_REUSE += mthumb/march.armv7/mfloat-abi.soft=marm/march.armv7/mfloat-abi.soft | |
| MULTILIB_REUSE += $(foreach ABI, hard softfp, \ | |
| $(foreach ARCH, armv7+fp armv7-r+fp\.sp, \ | |
| mthumb/march.$(ARCH)/mfloat-abi.$(ABI)=marm/march.$(ARCH)/mfloat-abi.$(ABI))) | |
| # Softfp but no FP, use the soft-float libraries. | |
| MULTILIB_REUSE += $(foreach MODE, arm thumb, \ | |
| $(foreach ARCH, armv7, \ | |
| mthumb/march.$(ARCH)/mfloat-abi.soft=m$(MODE)/march.$(ARCH)/mfloat-abi.softfp)) | |