| # Copyright (C) 2016-2021 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 because 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 |
