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1 # Copyright (C) 2016-2020 Free Software Foundation, Inc.
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2 #
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3 # This file is part of GCC.
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4 #
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5 # GCC is free software; you can redistribute it and/or modify
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6 # it under the terms of the GNU General Public License as published by
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7 # the Free Software Foundation; either version 3, or (at your option)
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8 # any later version.
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9 #
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10 # GCC is distributed in the hope that it will be useful,
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11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 # GNU General Public License for more details.
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14 #
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15 # You should have received a copy of the GNU General Public License
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16 # along with GCC; see the file COPYING3. If not see
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17 # <http://www.gnu.org/licenses/>.
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18
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19 # This is a target makefile fragment that attempts to get
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20 # multilibs built for the range of CPU's, FPU's and ABI's that
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21 # are relevant for the ARM architecture. It should not be used in
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22 # conjunction with another make file fragment and assumes --with-arch,
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23 # --with-cpu, --with-fpu, --with-float, --with-mode have their default
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24 # values during the configure step. We enforce this during the
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25 # top-level configury.
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26
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27
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28 # Arch and FPU variants to build libraries with
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29
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30 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
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31 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
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32
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33 # Base M-profile (no fp)
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34 MULTILIB_REQUIRED += mthumb/march=armv6s-m/mfloat-abi=soft
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35 MULTILIB_REQUIRED += mthumb/march=armv7-m/mfloat-abi=soft
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36 MULTILIB_REQUIRED += mthumb/march=armv7e-m/mfloat-abi=soft
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37 MULTILIB_REQUIRED += mthumb/march=armv8-m.base/mfloat-abi=soft
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38 MULTILIB_REQUIRED += mthumb/march=armv8-m.main/mfloat-abi=soft
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39
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40 # ARMv7e-M with FP (single and double precision variants)
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41 MULTILIB_REQUIRED += mthumb/march=armv7e-m+fp/mfloat-abi=hard
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42 MULTILIB_REQUIRED += mthumb/march=armv7e-m+fp/mfloat-abi=softfp
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43 MULTILIB_REQUIRED += mthumb/march=armv7e-m+fp.dp/mfloat-abi=hard
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44 MULTILIB_REQUIRED += mthumb/march=armv7e-m+fp.dp/mfloat-abi=softfp
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45
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46 # ARMv8-M with FP (single and double precision variants)
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47 MULTILIB_REQUIRED += mthumb/march=armv8-m.main+fp/mfloat-abi=hard
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48 MULTILIB_REQUIRED += mthumb/march=armv8-m.main+fp/mfloat-abi=softfp
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49 MULTILIB_REQUIRED += mthumb/march=armv8-m.main+fp.dp/mfloat-abi=hard
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50 MULTILIB_REQUIRED += mthumb/march=armv8-m.main+fp.dp/mfloat-abi=softfp
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51
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52
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53
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54 # Arch Matches
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55 MULTILIB_MATCHES += march?armv6s-m=march?armv6-m
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56
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145
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57 # Map all v8-m.main+dsp FP variants down to the variant without DSP.
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111
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58 MULTILIB_MATCHES += march?armv8-m.main=march?armv8-m.main+dsp \
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59 $(foreach FP, +fp +fp.dp, \
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60 march?armv8-m.main$(FP)=march?armv8-m.main+dsp$(FP))
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61
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62 # For single-precision only fpv5, use the base fp libraries
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63 MULTILIB_MATCHES += march?armv7e-m+fp=march?armv7e-m+fpv5
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64
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65 # Softfp but no FP. Use the soft-float libraries.
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66 MULTILIB_REUSE += $(foreach ARCH, armv6s-m armv7-m armv7e-m armv8-m\.base armv8-m\.main, \
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67 mthumb/march.$(ARCH)/mfloat-abi.soft=mthumb/march.$(ARCH)/mfloat-abi.softfp)
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68
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69 # Map v8.1-M to v8-M.
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70 MULTILIB_MATCHES += march?armv8-m.main=march?armv8.1-m.main
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71 MULTILIB_MATCHES += march?armv8-m.main=march?armv8.1-m.main+dsp
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72 MULTILIB_MATCHES += march?armv8-m.main=march?armv8.1-m.main+mve
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73
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74 v8_1m_sp_variants = +fp +dsp+fp +mve.fp
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75 v8_1m_dp_variants = +fp.dp +dsp+fp.dp +fp.dp+mve +fp.dp+mve.fp
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76
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77 # Map all v8.1-m.main FP sp variants down to v8-m.
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78 MULTILIB_MATCHES += $(foreach FP, $(v8_1m_sp_variants), \
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79 march?armv8-m.main+fp=march?armv8.1-m.main$(FP))
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80
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81 # Map all v8.1-m.main FP dp variants down to v8-m.
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82 MULTILIB_MATCHES += $(foreach FP, $(v8_1m_dp_variants), \
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83 march?armv8-m.main+fp.dp=march?armv8.1-m.main$(FP))
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