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1 # Copyright (C) 2012-2017 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 A-profile architecture. It should
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22 # not be used in conjunction with another make file fragment and
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23 # assumes --with-arch, --with-cpu, --with-fpu, --with-float, --with-mode
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24 # have their default values during the configure step. We enforce
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25 # this during the top-level configury.
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26
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27 # Arch and FPU variants to build libraries with
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28
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29 MULTI_ARCH_OPTS_A = march=armv7-a/march=armv7-a+fp/march=armv7-a+simd/march=armv7ve+simd/march=armv8-a/march=armv8-a+simd
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30 MULTI_ARCH_DIRS_A = v7-a v7-a+fp v7-a+simd v7ve+simd v8-a v8-a+simd
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31
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32 # ARMv7-A - build nofp, fp-d16 and SIMD variants
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33
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34 MULTILIB_REQUIRED += mthumb/march=armv7-a/mfloat-abi=soft
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35 MULTILIB_REQUIRED += mthumb/march=armv7-a+fp/mfloat-abi=hard
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36 MULTILIB_REQUIRED += mthumb/march=armv7-a+fp/mfloat-abi=softfp
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37 MULTILIB_REQUIRED += mthumb/march=armv7-a+simd/mfloat-abi=hard
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38 MULTILIB_REQUIRED += mthumb/march=armv7-a+simd/mfloat-abi=softfp
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39
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40 # ARMv7VE - only build a SIMD (+VFPv4) variant.
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41 MULTILIB_REQUIRED += mthumb/march=armv7ve+simd/mfloat-abi=hard
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42 MULTILIB_REQUIRED += mthumb/march=armv7ve+simd/mfloat-abi=softfp
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43
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44 # ARMv8-A - build nofp and SIMD variants.
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45 MULTILIB_REQUIRED += mthumb/march=armv8-a/mfloat-abi=soft
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46 MULTILIB_REQUIRED += mthumb/march=armv8-a+simd/mfloat-abi=hard
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47 MULTILIB_REQUIRED += mthumb/march=armv8-a+simd/mfloat-abi=softfp
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48
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49 # Matches
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50
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51 # Arch Matches
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52 # Map all v7-a FP variants to vfpv3-d16 (+fp)
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53 MULTILIB_MATCHES += $(foreach ARCH, $(filter-out +fp, $(v7_a_nosimd_variants)), \
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54 march?armv7-a+fp=march?armv7-a$(ARCH))
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55
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56 # Map all v7-a SIMD variants to neon-vfpv3 (+simd)
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57 MULTILIB_MATCHES += $(foreach ARCH, $(filter-out +simd, $(v7_a_simd_variants)), \
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58 march?armv7-a+simd=march?armv7-a$(ARCH))
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59
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60 # Neither FP nor SIMD: map v7ve to v7-a
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61 MULTILIB_MATCHES += march?armv7-a=march?armv7ve
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62
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63 # ARMv7ve FP-only variants: map down to v7-a+fp
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64 MULTILIB_MATCHES += $(foreach ARCH, $(v7ve_nosimd_variants), \
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65 march?armv7-a+fp=march?armv7ve$(ARCH))
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66
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67 # ARMv7ve with SIMD, but SIMD is less capable than the default - map down to v7-a+simd
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68 MULTILIB_MATCHES += $(foreach ARCH, $(v7ve_vfpv3_simd_variants), \
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69 march?armv7-a+simd=march?armv7ve$(ARCH))
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70
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71 # ARMv8 without SIMD: map down to base architecture
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72 MULTILIB_MATCHES += $(foreach ARCH, $(v8_a_nosimd_variants), \
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73 march?armv8-a=march?armv8-a$(ARCH))
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74
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75 # ARMv8 with SIMD: map down to base arch + simd
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76 MULTILIB_MATCHES += march?armv8-a+simd=march?armv8-a+crc+simd \
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77 $(foreach ARCH, $(filter-out +simd, $(v8_a_simd_variants)), \
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78 march?armv8-a+simd=march?armv8-a$(ARCH) \
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79 march?armv8-a+simd=march?armv8-a+crc$(ARCH))
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80
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81 # Baseline v8.1-a: map down to baseline v8-a
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82 MULTILIB_MATCHES += march?armv8-a=march?armv8.1-a
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83
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84 # Map all v8.1-a SIMD variants to v8-a+simd
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85 MULTILIB_MATCHES += $(foreach ARCH, $(v8_1_a_simd_variants), \
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86 march?armv8-a+simd=march?armv8.1-a$(ARCH))
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87
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88 # Baseline v8.2-a: map down to baseline v8-a
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89 MULTILIB_MATCHES += march?armv8-a=march?armv8.2-a
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90
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91 # Map all v8.2-a SIMD variants to v8-a+simd
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92 MULTILIB_MATCHES += $(foreach ARCH, $(v8_2_a_simd_variants), \
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93 march?armv8-a+simd=march?armv8.2-a$(ARCH))
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94
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95 # Use Thumb libraries for everything.
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96
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97 MULTILIB_REUSE += mthumb/march.armv7-a/mfloat-abi.soft=marm/march.armv7-a/mfloat-abi.soft
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98
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99 MULTILIB_REUSE += mthumb/march.armv8-a/mfloat-abi.soft=marm/march.armv8-a/mfloat-abi.soft
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100
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101 MULTILIB_REUSE += $(foreach ABI, hard softfp, \
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102 $(foreach ARCH, armv7-a+fp armv7-a+simd armv7ve+simd armv8-a+simd, \
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103 mthumb/march.$(ARCH)/mfloat-abi.$(ABI)=marm/march.$(ARCH)/mfloat-abi.$(ABI)))
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104
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105 # Softfp but no FP, use the soft-float libraries.
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106 MULTILIB_REUSE += $(foreach MODE, arm thumb, \
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107 $(foreach ARCH, armv7-a armv8-a, \
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108 mthumb/march.$(ARCH)/mfloat-abi.soft=m$(MODE)/march.$(ARCH)/mfloat-abi.softfp))
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