# Copyright (C) 2016-2020 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. # Arch and FPU variants to build libraries with 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 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 # Base M-profile (no fp) MULTILIB_REQUIRED += mthumb/march=armv6s-m/mfloat-abi=soft MULTILIB_REQUIRED += mthumb/march=armv7-m/mfloat-abi=soft MULTILIB_REQUIRED += mthumb/march=armv7e-m/mfloat-abi=soft MULTILIB_REQUIRED += mthumb/march=armv8-m.base/mfloat-abi=soft MULTILIB_REQUIRED += mthumb/march=armv8-m.main/mfloat-abi=soft # ARMv7e-M with FP (single and double precision variants) MULTILIB_REQUIRED += mthumb/march=armv7e-m+fp/mfloat-abi=hard MULTILIB_REQUIRED += mthumb/march=armv7e-m+fp/mfloat-abi=softfp MULTILIB_REQUIRED += mthumb/march=armv7e-m+fp.dp/mfloat-abi=hard MULTILIB_REQUIRED += mthumb/march=armv7e-m+fp.dp/mfloat-abi=softfp # ARMv8-M with FP (single and double precision variants) MULTILIB_REQUIRED += mthumb/march=armv8-m.main+fp/mfloat-abi=hard MULTILIB_REQUIRED += mthumb/march=armv8-m.main+fp/mfloat-abi=softfp MULTILIB_REQUIRED += mthumb/march=armv8-m.main+fp.dp/mfloat-abi=hard MULTILIB_REQUIRED += mthumb/march=armv8-m.main+fp.dp/mfloat-abi=softfp MULTILIB_REQUIRED += mthumb/march=armv8.1-m.main+mve/mfloat-abi=hard # Arch Matches MULTILIB_MATCHES += march?armv6s-m=march?armv6-m # For all MULITIB_MATCHES for v8-m and above add mlibarch? on the right hand side # of = in the variant string instead of march?. This is needed becuase all the # MULITIB_MATCHES variant strings are compared with mlibarch option for multilib # linking. # Map all v8-m.main+dsp FP variants down to the variant without DSP. MULTILIB_MATCHES += march?armv8-m.main=mlibarch?armv8-m.main+dsp \ $(foreach FP, +fp +fp.dp, \ march?armv8-m.main$(FP)=mlibarch?armv8-m.main+dsp$(FP)) # For single-precision only fpv5, use the base fp libraries MULTILIB_MATCHES += march?armv7e-m+fp=march?armv7e-m+fpv5 # Softfp but no FP. Use the soft-float libraries. MULTILIB_REUSE += $(foreach ARCH, armv6s-m armv7-m armv7e-m armv8-m\.base armv8-m\.main, \ mthumb/march.$(ARCH)/mfloat-abi.soft=mthumb/march.$(ARCH)/mfloat-abi.softfp) # Map v8.1-M to v8-M. MULTILIB_MATCHES += march?armv8-m.main=mlibarch?armv8.1-m.main MULTILIB_MATCHES += march?armv8-m.main=mlibarch?armv8.1-m.main+dsp MULTILIB_REUSE += mthumb/march.armv8-m\.main/mfloat-abi.soft=mthumb/march.armv8\.1-m\.main+mve/mfloat-abi.soft MULTILIB_REUSE += mthumb/march.armv8-m\.main/mfloat-abi.soft=mthumb/march.armv8\.1-m\.main+mve/mfloat-abi.softfp v8_1m_sp_variants = +fp +dsp+fp +mve.fp +fp+mve v8_1m_dp_variants = +fp.dp +dsp+fp.dp +fp.dp+mve +fp.dp+mve.fp # Map all v8.1-m.main FP sp variants down to v8-m. MULTILIB_MATCHES += $(foreach FP, $(v8_1m_sp_variants), \ march?armv8-m.main+fp=mlibarch?armv8.1-m.main$(FP)) # Map all v8.1-m.main FP dp variants down to v8-m. MULTILIB_MATCHES += $(foreach FP, $(v8_1m_dp_variants), \ march?armv8-m.main+fp.dp=mlibarch?armv8.1-m.main$(FP)) # For all the MULTILIB_REQUIRED for v8-m and above, add MULTILIB_MATCHES which # maps mlibarch with march for multilib linking. MULTILIB_MATCHES += march?armv8-m.main=mlibarch?armv8-m.main MULTILIB_MATCHES += march?armv8-m.main+fp=mlibarch?armv8-m.main+fp MULTILIB_MATCHES += march?armv8-m.main+fp.dp=mlibarch?armv8-m.main+fp.dp MULTILIB_MATCHES += march?armv8.1-m.main+mve=mlibarch?armv8.1-m.main+mve |