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# Copyright (C) 2016-2017 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.
MULTILIB_OPTIONS =
MULTILIB_DIRNAMES =
MULTILIB_EXCEPTIONS =
MULTILIB_MATCHES =
MULTILIB_REUSE =
# We have the following hierachy:
# ISA: A32 (.) or T16/T32 (thumb).
# Architecture: ARMv6S-M (v6-m), ARMv7-M (v7-m), ARMv7E-M (v7e-m),
# ARMv8-M Baseline (v8-m.base) or ARMv8-M Mainline (v8-m.main).
# FPU: VFPv3-D16 (fpv3), FPV4-SP-D16 (fpv4-sp), FPV5-SP-D16 (fpv5-sp),
# VFPv5-D16 (fpv5), or None (.).
# Float-abi: Soft (.), softfp (softfp), or hard (hardfp).
# Options to build libraries with
MULTILIB_OPTIONS += mthumb
MULTILIB_DIRNAMES += thumb
MULTILIB_OPTIONS += march=armv6s-m/march=armv7-m/march=armv7e-m/march=armv7/march=armv8-m.base/march=armv8-m.main
MULTILIB_DIRNAMES += v6-m v7-m v7e-m v7-ar v8-m.base v8-m.main
MULTILIB_OPTIONS += mfpu=vfpv3-d16/mfpu=fpv4-sp-d16/mfpu=fpv5-sp-d16/mfpu=fpv5-d16
MULTILIB_DIRNAMES += fpv3 fpv4-sp fpv5-sp fpv5
MULTILIB_OPTIONS += mfloat-abi=softfp/mfloat-abi=hard
MULTILIB_DIRNAMES += softfp hard
# Option combinations to build library with
# Default CPU/Arch
MULTILIB_REQUIRED += mthumb
MULTILIB_REQUIRED += mfloat-abi=hard
# ARMv6-M
MULTILIB_REQUIRED += mthumb/march=armv6s-m
# ARMv8-M Baseline
MULTILIB_REQUIRED += mthumb/march=armv8-m.base
# ARMv7-M
MULTILIB_REQUIRED += mthumb/march=armv7-m
# ARMv7E-M
MULTILIB_REQUIRED += mthumb/march=armv7e-m
MULTILIB_REQUIRED += mthumb/march=armv7e-m/mfpu=fpv4-sp-d16/mfloat-abi=softfp
MULTILIB_REQUIRED += mthumb/march=armv7e-m/mfpu=fpv4-sp-d16/mfloat-abi=hard
MULTILIB_REQUIRED += mthumb/march=armv7e-m/mfpu=fpv5-d16/mfloat-abi=softfp
MULTILIB_REQUIRED += mthumb/march=armv7e-m/mfpu=fpv5-d16/mfloat-abi=hard
# ARMv8-M Mainline
MULTILIB_REQUIRED += mthumb/march=armv8-m.main
MULTILIB_REQUIRED += mthumb/march=armv8-m.main/mfpu=fpv5-d16/mfloat-abi=softfp
MULTILIB_REQUIRED += mthumb/march=armv8-m.main/mfpu=fpv5-d16/mfloat-abi=hard
MULTILIB_REQUIRED += mthumb/march=armv8-m.main/mfpu=fpv5-sp-d16/mfloat-abi=softfp
MULTILIB_REQUIRED += mthumb/march=armv8-m.main/mfpu=fpv5-sp-d16/mfloat-abi=hard
# ARMv7-R as well as ARMv7-A and ARMv8-A if aprofile was not specified
MULTILIB_REQUIRED += mthumb/march=armv7
MULTILIB_REQUIRED += mthumb/march=armv7/mfpu=vfpv3-d16/mfloat-abi=softfp
MULTILIB_REQUIRED += mthumb/march=armv7/mfpu=vfpv3-d16/mfloat-abi=hard
# Matches
# CPU Matches
MULTILIB_MATCHES += march?armv6s-m=mcpu?cortex-m0
MULTILIB_MATCHES += march?armv6s-m=mcpu?cortex-m0.small-multiply
MULTILIB_MATCHES += march?armv6s-m=mcpu?cortex-m0plus
MULTILIB_MATCHES += march?armv6s-m=mcpu?cortex-m0plus.small-multiply
MULTILIB_MATCHES += march?armv6s-m=mcpu?cortex-m1
MULTILIB_MATCHES += march?armv6s-m=mcpu?cortex-m1.small-multiply
MULTILIB_MATCHES += march?armv7-m=mcpu?cortex-m3
MULTILIB_MATCHES += march?armv7e-m=mcpu?cortex-m4
MULTILIB_MATCHES += march?armv7e-m=mcpu?cortex-m7
MULTILIB_MATCHES += march?armv8-m.base=mcpu?cortex-m23
MULTILIB_MATCHES += march?armv8-m.main=mcpu?cortex-m33
MULTILIB_MATCHES += march?armv8-m.main=mcpu?cortex-m33+nodsp
MULTILIB_MATCHES += march?armv7=mcpu?cortex-r4
MULTILIB_MATCHES += march?armv7=mcpu?cortex-r4f
MULTILIB_MATCHES += march?armv7=mcpu?cortex-r5
MULTILIB_MATCHES += march?armv7=mcpu?cortex-r7
MULTILIB_MATCHES += march?armv7=mcpu?cortex-r8
MULTILIB_MATCHES += march?armv7=mcpu?cortex-r52
MULTILIB_MATCHES += march?armv7=mcpu?marvell-pj4
MULTILIB_MATCHES += march?armv7=mcpu?generic-armv7-a
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a8
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a9
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a5
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a7
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a15
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a12
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a17
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a15.cortex-a7
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a17.cortex-a7
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a32
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a35
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a53
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a57
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a57.cortex-a53
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a72
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a72.cortex-a53
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a73
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a73.cortex-a35
MULTILIB_MATCHES += march?armv7=mcpu?cortex-a73.cortex-a53
MULTILIB_MATCHES += march?armv7=mcpu?exynos-m1
MULTILIB_MATCHES += march?armv7=mcpu?xgene1
# Arch Matches
MULTILIB_MATCHES += march?armv6s-m=march?armv6-m
MULTILIB_MATCHES += march?armv8-m.main=march?armv8-m.main+dsp
MULTILIB_MATCHES += march?armv7=march?armv7-r
MULTILIB_MATCHES += march?armv7=march?armv8-r
MULTILIB_MATCHES += march?armv7=march?armv8-r+crc
ifeq (,$(HAS_APROFILE))
MULTILIB_MATCHES += march?armv7=march?armv7-a
MULTILIB_MATCHES += march?armv7=march?armv7ve
MULTILIB_MATCHES += march?armv7=march?armv8-a
MULTILIB_MATCHES += march?armv7=march?armv8-a+crc
MULTILIB_MATCHES += march?armv7=march?armv8.1-a
MULTILIB_MATCHES += march?armv7=march?armv8.1-a+crc
MULTILIB_MATCHES += march?armv7=march?armv8.2-a
MULTILIB_MATCHES += march?armv7=march?armv8.2-a+fp16
endif
# FPU matches
ifeq (,$(HAS_APROFILE))
MULTILIB_MATCHES += mfpu?vfpv3-d16=mfpu?vfpv3
MULTILIB_MATCHES += mfpu?vfpv3-d16=mfpu?vfpv3-fp16
MULTILIB_MATCHES += mfpu?vfpv3-d16=mfpu?vfpv3-d16-fp16
MULTILIB_MATCHES += mfpu?vfpv3-d16=mfpu?neon
MULTILIB_MATCHES += mfpu?vfpv3-d16=mfpu?neon-fp16
MULTILIB_MATCHES += mfpu?vfpv3-d16=mfpu?vfpv4
MULTILIB_MATCHES += mfpu?vfpv3-d16=mfpu?vfpv4-d16
MULTILIB_MATCHES += mfpu?vfpv3-d16=mfpu?neon-vfpv4
MULTILIB_MATCHES += mfpu?fpv5-d16=mfpu?fp-armv8
MULTILIB_MATCHES += mfpu?fpv5-d16=mfpu?neon-fp-armv8
MULTILIB_MATCHES += mfpu?fpv5-d16=mfpu?crypto-neon-fp-armv8
endif
# We map all requests for ARMv7-R, ARMv7-A and ARMv8-R in ARM mode to Thumb
# mode and any FPU to VFPv3-d16 if possible.
MULTILIB_REUSE += mthumb/march.armv7=march.armv7
MULTILIB_REUSE += mthumb/march.armv7/mfpu.vfpv3-d16/mfloat-abi.softfp=march.armv7/mfpu.vfpv3-d16/mfloat-abi.softfp
MULTILIB_REUSE += mthumb/march.armv7/mfpu.vfpv3-d16/mfloat-abi.hard=march.armv7/mfpu.vfpv3-d16/mfloat-abi.hard
MULTILIB_REUSE += mthumb/march.armv7/mfpu.vfpv3-d16/mfloat-abi.softfp=march.armv7/mfpu.fpv5-d16/mfloat-abi.softfp
MULTILIB_REUSE += mthumb/march.armv7/mfpu.vfpv3-d16/mfloat-abi.hard=march.armv7/mfpu.fpv5-d16/mfloat-abi.hard
MULTILIB_REUSE += mthumb/march.armv7/mfpu.vfpv3-d16/mfloat-abi.softfp=mthumb/march.armv7/mfpu.fpv5-d16/mfloat-abi.softfp
MULTILIB_REUSE += mthumb/march.armv7/mfpu.vfpv3-d16/mfloat-abi.hard=mthumb/march.armv7/mfpu.fpv5-d16/mfloat-abi.hard
# Map ARMv7E-M FPV5-SP-D16 to FPV4-SP-D16
MULTILIB_REUSE += mthumb/march.armv7e-m/mfpu.fpv4-sp-d16/mfloat-abi.softfp=mthumb/march.armv7e-m/mfpu.fpv5-sp-d16/mfloat-abi.softfp
MULTILIB_REUSE += mthumb/march.armv7e-m/mfpu.fpv4-sp-d16/mfloat-abi.hard=mthumb/march.armv7e-m/mfpu.fpv5-sp-d16/mfloat-abi.hard
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