1*ec02198aSmrg# Copyright (C) 1998-2020 Free Software Foundation, Inc. 210d565efSmrg# 310d565efSmrg# This file is part of GCC. 410d565efSmrg# 510d565efSmrg# GCC is free software; you can redistribute it and/or modify 610d565efSmrg# it under the terms of the GNU General Public License as published by 710d565efSmrg# the Free Software Foundation; either version 3, or (at your option) 810d565efSmrg# any later version. 910d565efSmrg# 1010d565efSmrg# GCC is distributed in the hope that it will be useful, 1110d565efSmrg# but WITHOUT ANY WARRANTY; without even the implied warranty of 1210d565efSmrg# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1310d565efSmrg# GNU General Public License for more details. 1410d565efSmrg# 1510d565efSmrg# You should have received a copy of the GNU General Public License 1610d565efSmrg# along with GCC; see the file COPYING3. If not see 1710d565efSmrg# <http://www.gnu.org/licenses/>. 1810d565efSmrg 19c7a68eb7Smrg# Build a very basic set of libraries that should cater for most cases. 20c7a68eb7Smrg 21c7a68eb7Smrg# Single-precision floating-point is NOT supported; we don't build a 22c7a68eb7Smrg# suitable library for that. Use the rm-profile config in that case. 23c7a68eb7Smrg 24c7a68eb7Smrg# PART 1 - Useful groups of options 25c7a68eb7Smrg 26c7a68eb7Smrgdp_fpus := vfp vfpv2 vfpv3 vfpv3-fp16 vfpv3-d16 vfpv3-d16-fp16 \ 27c7a68eb7Smrg neon neon-vfpv3 neon-fp16 vfpv4 neon-vfpv4 vfpv4-d16 \ 28c7a68eb7Smrg fpv5-d16 fp-armv8 neon-fp-armv8 crypto-neon-fp-armv8 \ 29c7a68eb7Smrg vfp3 30c7a68eb7Smrg 31c7a68eb7Smrgsp_fpus := vfpv3xd vfpv3xd-fp16 fpv4-sp-d16 fpv5-sp-d16 32c7a68eb7Smrg 33c7a68eb7Smrgv7a_fps := vfpv3 vfpv3-fp16 vfpv4 simd neon-fp16 neon-vfpv4 34c7a68eb7Smrgv7ve_fps := vfpv3-d16 vfpv3 vfpv3-d16-fp16 vfpv3-fp16 vfpv4 neon \ 35c7a68eb7Smrg neon-fp16 simd 36c7a68eb7Smrg 37c7a68eb7Smrg# Not all these permutations exist for all architecture variants, but 38c7a68eb7Smrg# it seems to work ok. 39c7a68eb7Smrgv8_fps := simd fp16 crypto fp16+crypto dotprod fp16fml 40c7a68eb7Smrg 41c7a68eb7Smrg# We don't do anything special with these. Pre-v4t probably doesn't work. 420fc04c29Smrgall_early_nofp := armv4 armv4t armv5t 43c7a68eb7Smrg 440fc04c29Smrgall_early_arch := armv5tej armv6 armv6j armv6k armv6z armv6kz \ 45c7a68eb7Smrg armv6zk armv6t2 iwmmxt iwmmxt2 46c7a68eb7Smrg 47c7a68eb7Smrgall_v7_a_r := armv7-a armv7ve armv7-r 48c7a68eb7Smrg 490fc04c29Smrgall_v8_archs := armv8-a armv8-a+crc armv8.1-a armv8.2-a armv8.3-a armv8.4-a \ 50*ec02198aSmrg armv8.5-a armv8.6-a 51c7a68eb7Smrg 52c7a68eb7Smrg# No floating point variants, require thumb1 softfp 53c7a68eb7Smrgall_nofp_t := armv6-m armv6s-m armv8-m.base 54c7a68eb7Smrg 55c7a68eb7Smrgall_nofp_t2 := armv7-m 56c7a68eb7Smrg 57c7a68eb7Smrgall_sp_only := armv7e-m armv8-m.main 58c7a68eb7Smrg 59c7a68eb7SmrgMULTILIB_OPTIONS = 60c7a68eb7SmrgMULTILIB_DIRNAMES = 6110d565efSmrgMULTILIB_EXCEPTIONS = 6210d565efSmrgMULTILIB_MATCHES = 63c7a68eb7SmrgMULTILIB_REUSE = 6410d565efSmrg 65c7a68eb7Smrg# PART 2 - multilib build rules 6610d565efSmrg 67c7a68eb7SmrgMULTILIB_OPTIONS += marm/mthumb 68c7a68eb7SmrgMULTILIB_DIRNAMES += arm thumb 6910d565efSmrg 70c7a68eb7SmrgMULTILIB_OPTIONS += mfpu=auto 71c7a68eb7SmrgMULTILIB_DIRNAMES += autofp 72c7a68eb7Smrg 73c7a68eb7SmrgMULTILIB_OPTIONS += march=armv5te+fp/march=armv7+fp 74c7a68eb7SmrgMULTILIB_DIRNAMES += v5te v7 75c7a68eb7Smrg 7610d565efSmrgMULTILIB_OPTIONS += mfloat-abi=hard 7710d565efSmrgMULTILIB_DIRNAMES += fpu 7810d565efSmrg 79c7a68eb7Smrg# Build a total of 4 library variants (base options plus the following): 80c7a68eb7SmrgMULTILIB_REQUIRED += mthumb 81c7a68eb7SmrgMULTILIB_REQUIRED += marm/mfpu=auto/march=armv5te+fp/mfloat-abi=hard 82c7a68eb7SmrgMULTILIB_REQUIRED += mthumb/mfpu=auto/march=armv7+fp/mfloat-abi=hard 83c7a68eb7Smrg 84c7a68eb7Smrg# PART 3 - Match rules 85c7a68eb7Smrg 86c7a68eb7Smrg# Map all supported FPUs onto mfpu=auto 87c7a68eb7SmrgMULTILIB_MATCHES += $(foreach FPU, $(dp_fpus), \ 88c7a68eb7Smrg mfpu?auto=mfpu?$(FPU)) 89c7a68eb7Smrg 90c7a68eb7SmrgMULTILIB_MATCHES += march?armv5te+fp=march?armv5te 91c7a68eb7Smrg 92c7a68eb7SmrgMULTILIB_MATCHES += $(foreach ARCH, $(all_early_arch), \ 93c7a68eb7Smrg march?armv5te+fp=march?$(ARCH) \ 94c7a68eb7Smrg march?armv5te+fp=march?$(ARCH)+fp) 95c7a68eb7Smrg 96c7a68eb7SmrgMULTILIB_MATCHES += march?armv7+fp=march?armv7 97c7a68eb7Smrg 98c7a68eb7SmrgMULTILIB_MATCHES += $(foreach FPARCH, $(v7a_fps), \ 99c7a68eb7Smrg march?armv7+fp=march?armv7-a+$(FPARCH)) 100c7a68eb7Smrg 101c7a68eb7SmrgMULTILIB_MATCHES += $(foreach FPARCH, $(v7ve_fps), \ 102c7a68eb7Smrg march?armv7+fp=march?armv7ve+$(FPARCH)) 103c7a68eb7Smrg 104c7a68eb7SmrgMULTILIB_MATCHES += $(foreach ARCH, $(all_v7_a_r), \ 105c7a68eb7Smrg march?armv7+fp=march?$(ARCH) \ 106c7a68eb7Smrg march?armv7+fp=march?$(ARCH)+fp) 107c7a68eb7Smrg 108c7a68eb7SmrgMULTILIB_MATCHES += $(foreach ARCH, $(all_v8_archs), \ 109c7a68eb7Smrg march?armv7+fp=march?$(ARCH) \ 110c7a68eb7Smrg $(foreach FPARCH, $(v8_fps), \ 111c7a68eb7Smrg march?armv7+fp=march?$(ARCH)+$(FPARCH))) 112c7a68eb7Smrg 113c7a68eb7SmrgMULTILIB_MATCHES += $(foreach ARCH, armv7e-m armv8-m.mainline, \ 114c7a68eb7Smrg march?armv7+fp=march?$(ARCH)+fp.dp) 115c7a68eb7Smrg 116c7a68eb7Smrg# PART 4 - Reuse rules 117c7a68eb7Smrg 118c7a68eb7SmrgMULTILIB_REUSE += mthumb=mthumb/mfpu.auto 119c7a68eb7SmrgMULTILIB_REUSE += mthumb=mthumb/mfpu.auto/march.armv5te+fp 120c7a68eb7SmrgMULTILIB_REUSE += mthumb=mthumb/march.armv5te+fp 121c7a68eb7SmrgMULTILIB_REUSE += marm/mfpu.auto/march.armv5te+fp/mfloat-abi.hard=marm/march.armv5te+fp/mfloat-abi.hard 122c7a68eb7SmrgMULTILIB_REUSE += marm/mfpu.auto/march.armv5te+fp/mfloat-abi.hard=march.armv5te+fp/mfloat-abi.hard 123c7a68eb7SmrgMULTILIB_REUSE += marm/mfpu.auto/march.armv5te+fp/mfloat-abi.hard=mfpu.auto/march.armv5te+fp/mfloat-abi.hard 124c7a68eb7SmrgMULTILIB_REUSE += mthumb/mfpu.auto/march.armv7+fp/mfloat-abi.hard=mthumb/march.armv7+fp/mfloat-abi.hard 125c7a68eb7SmrgMULTILIB_REUSE += mthumb/mfpu.auto/march.armv7+fp/mfloat-abi.hard=mfpu.auto/march.armv7+fp/mfloat-abi.hard 126c7a68eb7SmrgMULTILIB_REUSE += mthumb/mfpu.auto/march.armv7+fp/mfloat-abi.hard=march.armv7+fp/mfloat-abi.hard 127