95 lines
4.6 KiB
Text
95 lines
4.6 KiB
Text
# Copyright (C) 2016-2022 Free Software Foundation, Inc.
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#
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# This file is part of GCC.
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#
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# GCC is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3, or (at your option)
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# any later version.
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#
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# GCC is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with GCC; see the file COPYING3. If not see
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# <http://www.gnu.org/licenses/>.
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# This is a target makefile fragment that attempts to get
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# multilibs built for the range of CPU's, FPU's and ABI's that
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# are relevant for the ARM architecture. It should not be used in
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# conjunction with another make file fragment and assumes --with-arch,
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# --with-cpu, --with-fpu, --with-float, --with-mode have their default
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# values during the configure step. We enforce this during the
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# top-level configury.
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# Arch and FPU variants to build libraries with
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MULTI_ARCH_OPTS_RM = march=armv6s-m/march=armv7-m/march=armv7e-m/march=armv7e-m+fp/march=armv7e-m+fp.dp/march=armv8-m.base/march=armv8-m.main/march=armv8-m.main+fp/march=armv8-m.main+fp.dp/march=armv8.1-m.main+mve
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MULTI_ARCH_DIRS_RM = v6-m v7-m v7e-m v7e-m+fp v7e-m+dp v8-m.base v8-m.main v8-m.main+fp v8-m.main+dp v8.1-m.main+mve
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# Base M-profile (no fp)
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MULTILIB_REQUIRED += mthumb/march=armv6s-m/mfloat-abi=soft
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MULTILIB_REQUIRED += mthumb/march=armv7-m/mfloat-abi=soft
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MULTILIB_REQUIRED += mthumb/march=armv7e-m/mfloat-abi=soft
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MULTILIB_REQUIRED += mthumb/march=armv8-m.base/mfloat-abi=soft
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MULTILIB_REQUIRED += mthumb/march=armv8-m.main/mfloat-abi=soft
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# ARMv7e-M with FP (single and double precision variants)
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MULTILIB_REQUIRED += mthumb/march=armv7e-m+fp/mfloat-abi=hard
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MULTILIB_REQUIRED += mthumb/march=armv7e-m+fp/mfloat-abi=softfp
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MULTILIB_REQUIRED += mthumb/march=armv7e-m+fp.dp/mfloat-abi=hard
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MULTILIB_REQUIRED += mthumb/march=armv7e-m+fp.dp/mfloat-abi=softfp
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# ARMv8-M with FP (single and double precision variants)
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MULTILIB_REQUIRED += mthumb/march=armv8-m.main+fp/mfloat-abi=hard
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MULTILIB_REQUIRED += mthumb/march=armv8-m.main+fp/mfloat-abi=softfp
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MULTILIB_REQUIRED += mthumb/march=armv8-m.main+fp.dp/mfloat-abi=hard
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MULTILIB_REQUIRED += mthumb/march=armv8-m.main+fp.dp/mfloat-abi=softfp
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MULTILIB_REQUIRED += mthumb/march=armv8.1-m.main+mve/mfloat-abi=hard
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# Arch Matches
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MULTILIB_MATCHES += march?armv6s-m=march?armv6-m
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# For all MULITIB_MATCHES for v8-m and above add mlibarch? on the right hand side
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# of = in the variant string instead of march?. This is needed because all the
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# MULITIB_MATCHES variant strings are compared with mlibarch option for multilib
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# linking.
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# Map all v8-m.main+dsp FP variants down to the variant without DSP.
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MULTILIB_MATCHES += march?armv8-m.main=mlibarch?armv8-m.main+dsp \
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$(foreach FP, +fp +fp.dp, \
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march?armv8-m.main$(FP)=mlibarch?armv8-m.main+dsp$(FP))
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# For single-precision only fpv5, use the base fp libraries
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MULTILIB_MATCHES += march?armv7e-m+fp=march?armv7e-m+fpv5
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# Softfp but no FP. Use the soft-float libraries.
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MULTILIB_REUSE += $(foreach ARCH, armv6s-m armv7-m armv7e-m armv8-m\.base armv8-m\.main, \
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mthumb/march.$(ARCH)/mfloat-abi.soft=mthumb/march.$(ARCH)/mfloat-abi.softfp)
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# Map v8.1-M to v8-M.
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MULTILIB_MATCHES += march?armv8-m.main=mlibarch?armv8.1-m.main
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MULTILIB_MATCHES += march?armv8-m.main=mlibarch?armv8.1-m.main+dsp
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MULTILIB_REUSE += mthumb/march.armv8-m\.main/mfloat-abi.soft=mthumb/march.armv8\.1-m\.main+mve/mfloat-abi.soft
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MULTILIB_REUSE += mthumb/march.armv8-m\.main/mfloat-abi.soft=mthumb/march.armv8\.1-m\.main+mve/mfloat-abi.softfp
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v8_1m_sp_variants = +fp +dsp+fp +mve.fp +fp+mve
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v8_1m_dp_variants = +fp.dp +dsp+fp.dp +fp.dp+mve +fp.dp+mve.fp
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# Map all v8.1-m.main FP sp variants down to v8-m.
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MULTILIB_MATCHES += $(foreach FP, $(v8_1m_sp_variants), \
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march?armv8-m.main+fp=mlibarch?armv8.1-m.main$(FP))
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# Map all v8.1-m.main FP dp variants down to v8-m.
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MULTILIB_MATCHES += $(foreach FP, $(v8_1m_dp_variants), \
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march?armv8-m.main+fp.dp=mlibarch?armv8.1-m.main$(FP))
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# For all the MULTILIB_REQUIRED for v8-m and above, add MULTILIB_MATCHES which
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# maps mlibarch with march for multilib linking.
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MULTILIB_MATCHES += march?armv8-m.main=mlibarch?armv8-m.main
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MULTILIB_MATCHES += march?armv8-m.main+fp=mlibarch?armv8-m.main+fp
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MULTILIB_MATCHES += march?armv8-m.main+fp.dp=mlibarch?armv8-m.main+fp.dp
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MULTILIB_MATCHES += march?armv8.1-m.main+mve=mlibarch?armv8.1-m.main+mve
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