gcc/config/arm/t-multilib

   1 # Copyright (C) 2016-2021 Free Software Foundation, Inc.
   2 #
   3 # This file is part of GCC.
   4 #
   5 # GCC is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3, or (at your option)
   8 # any later version.
   9 #
  10 # GCC is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with GCC; see the file COPYING3.  If not see
  17 # <http://www.gnu.org/licenses/>.
  18
  19 # This is a target makefile fragment that attempts to get
  20 # multilibs built for the range of CPU's, FPU's and ABI's that
  21 # are relevant for the ARM architecture.  It should not be used in
  22 # conjunction with another make file fragment and assumes --with-arch,
  23 # --with-cpu, --with-fpu, --with-float, --with-mode have their default
  24 # values during the configure step.  We enforce this during the
  25 # top-level configury.
  26
  27 s-mlib: $(srcdir)/config/arm/t-multilib $(srcdir)/config/arm/t-aprofile $(srcdir)/config/arm/t-rmprofile
  28
  29 MULTILIB_OPTIONS     =
  30 MULTILIB_DIRNAMES    =
  31 MULTILIB_EXCEPTIONS  =
  32 MULTILIB_MATCHES     =
  33 MULTILIB_REUSE       =
  34 MULTILIB_REQUIRED    =
  35
  36 comma := ,
  37 tm_multilib_list := $(subst $(comma), ,$(TM_MULTILIB_CONFIG))
  38
  39 HAS_APROFILE := $(filter aprofile,$(tm_multilib_list))
  40 HAS_RMPROFILE := $(filter rmprofile,$(tm_multilib_list))
  41
  42 # Produce the combinatorial list of extensions.  Where there are
  43 # multiple permutations for a combination, the ordering is the
  44 # selected by the forward ordering of the original list.  This matches
  45 # the canonical ordering generated by the canonicalizer in the driver.
  46 #
  47 # For example,
  48 #   $(call all_feat_combs, a b)
  49 # will produce
  50 #   +a +a+b +b
  51 # but will not include
  52 #   +b+a
  53 # The rule is recursive and can be called with any (reasonable) list of
  54 # extensions.
  55 all_feat_combs  = +$(firstword $(1)) \
  56                   $(if $(wordlist 2, $(words $(1)), $(1)), \
  57                     $(foreach OPT, \
  58                       $(call all_feat_combs, \
  59                         $(wordlist 2, $(words $(1)), $(1))), \
  60                       +$(firstword $(1))$(OPT) $(OPT)),)
  61
  62 # Variables used.
  63 all_early_arch          := armv5tej armv6 armv6j armv6k armv6z armv6kz \
  64                            armv6zk armv6t2 iwmmxt iwmmxt2
  65 v7_a_arch_variants      := $(call all_feat_combs, mp sec)
  66 v7_a_nosimd_variants    := +fp +vfpv3 +vfpv3-d16-fp16 +vfpv3-fp16 +vfpv4-d16 +vfpv4
  67 v7_a_simd_variants      := +simd +neon-fp16 +neon-vfpv4
  68 v7_r_sp_variants        := +fp.sp +fp.sp+idiv +vfpv3xd-fp16 +vfpv3xd-fp16+idiv
  69 v7_r_dp_variants        := +fp +fp+idiv +vfpv3-d16-fp16 +vfpv3-d16-fp16+idiv
  70 v7ve_nosimd_variants    := +vfpv3-d16 +vfpv3 +vfpv3-d16-fp16 +vfpv3-fp16 +fp +vfpv4
  71 v7ve_vfpv3_simd_variants := +neon +neon-fp16
  72 v7ve_vfpv4_simd_variants := +simd
  73 v8_a_nosimd_variants    := +crc
  74 v8_a_simd_variants      := $(call all_feat_combs, simd crypto)
  75 v8_1_a_simd_variants    := $(call all_feat_combs, simd crypto)
  76 v8_2_a_simd_variants    := $(call all_feat_combs, simd fp16 fp16fml crypto dotprod i8mm bf16)
  77 v8_4_a_simd_variants    := $(call all_feat_combs, simd fp16 crypto i8mm bf16)
  78 v8_5_a_simd_variants    := $(call all_feat_combs, simd fp16 crypto i8mm bf16)
  79 v8_6_a_simd_variants    := $(call all_feat_combs, simd fp16 crypto i8mm bf16)
  80 v8_r_nosimd_variants    := +crc
  81
  82 ifneq (,$(HAS_APROFILE))
  83 include $(srcdir)/config/arm/t-aprofile
  84 endif
  85 ifneq (,$(HAS_RMPROFILE))
  86 include $(srcdir)/config/arm/t-rmprofile
  87 endif
  88 SEP := $(and $(HAS_APROFILE),$(HAS_RMPROFILE),/)
  89
  90
  91 MULTILIB_OPTIONS        += marm/mthumb
  92 MULTILIB_DIRNAMES       += arm thumb
  93
  94 MULTILIB_OPTIONS        += march=armv5te+fp/march=armv7/march=armv7+fp/march=armv7-r+fp.sp/$(MULTI_ARCH_OPTS_A)$(SEP)$(MULTI_ARCH_OPTS_RM)
  95 MULTILIB_DIRNAMES       += v5te v7 v7+fp v7-r+fp.sp $(MULTI_ARCH_DIRS_A) $(MULTI_ARCH_DIRS_RM)
  96
  97 MULTILIB_OPTIONS        += mfloat-abi=soft/mfloat-abi=softfp/mfloat-abi=hard
  98 MULTILIB_DIRNAMES       += nofp softfp hard
  99
 100 MULTILIB_REQUIRED       += mthumb/mfloat-abi=soft
 101 MULTILIB_REQUIRED       += marm/march=armv5te+fp/mfloat-abi=softfp
 102 MULTILIB_REQUIRED       += marm/march=armv5te+fp/mfloat-abi=hard
 103
 104 MULTILIB_REQUIRED       += mthumb/march=armv7/mfloat-abi=soft
 105 MULTILIB_REQUIRED       += mthumb/march=armv7+fp/mfloat-abi=softfp
 106 MULTILIB_REQUIRED       += mthumb/march=armv7+fp/mfloat-abi=hard
 107
 108 MULTILIB_REQUIRED       += mthumb/march=armv7-r+fp.sp/mfloat-abi=softfp
 109 MULTILIB_REQUIRED       += mthumb/march=armv7-r+fp.sp/mfloat-abi=hard
 110
 111 # Map v7-r with double precision down onto common v7 code.
 112 MULTILIB_MATCHES        += march?armv7=march?armv7-r
 113 MULTILIB_MATCHES        += march?armv7=march?armv7-r+idiv
 114 MULTILIB_MATCHES        += $(foreach ARCH, $(v7_r_dp_variants), \
 115                              march?armv7+fp=march?armv7-r$(ARCH))
 116
 117 # Map v7-r single precision variants to v7-r with single precision.
 118 MULTILIB_MATCHES        += $(foreach ARCH, \
 119                              $(filter-out +fp.sp, $(v7_r_sp_variants)), \
 120                              march?armv7-r+fp.sp=march?armv7-r$(ARCH))
 121
 122 MULTILIB_MATCHES        += $(foreach ARCH, $(all_early_arch), \
 123                              march?armv5te+fp=march?$(ARCH)+fp)
 124 # Map v8-r down onto common v7 code or v7-r sp.
 125 MULTILIB_MATCHES        += march?armv7=march?armv8-r
 126 MULTILIB_MATCHES        += $(foreach ARCH, $(v8_r_nosimd_variants), \
 127                              march?armv7=march?armv8-r$(ARCH))
 128 MULTILIB_MATCHES        += $(foreach ARCH,+simd +crypto, \
 129                              march?armv7+fp=march?armv8-r$(ARCH) \
 130                              march?armv7+fp=march?armv8-r+crc$(ARCH))
 131 MULTILIB_MATCHES        += march?armv7-r+fp.sp=march?armv8-r+fp.sp
 132 MULTILIB_MATCHES        += march?armv7-r+fp.sp=march?armv8-r+crc+fp.sp
 133
 134 ifeq (,$(HAS_APROFILE))
 135 # Map all v7-a
 136
 137 MULTILIB_MATCHES        += march?armv7=march?armv7-a
 138
 139 MULTILIB_MATCHES        += $(foreach ARCH, $(v7_a_arch_variants), \
 140                              march?armv7=march?armv7-a$(ARCH))
 141
 142 MULTILIB_MATCHES        += $(foreach ARCH, $(v7_a_nosimd_variants) $(v7_a_simd_variants), \
 143                              march?armv7+fp=march?armv7-a$(ARCH))
 144
 145 MULTILIB_MATCHES        += $(foreach ARCHVAR, $(v7_a_arch_variants), \
 146                              $(foreach ARCH, $(v7_a_nosimd_variants) $(v7_a_simd_variants), \
 147                                march?armv7+fp=march?armv7-a$(ARCHVAR)$(ARCH)))
 148
 149 MULTILIB_MATCHES        += march?armv7=march?armv7ve
 150
 151 # ARMv7ve FP/SIMD variants: map down to v7+fp
 152 MULTILIB_MATCHES        += $(foreach ARCH, $(v7ve_nosimd_variants) $(v7ve_vfpv3_simd_variants) $(v7ve_vfpv4_simd_variants), \
 153                              march?armv7+fp=march?armv7ve$(ARCH))
 154
 155 # ARMv8
 156 MULTILIB_MATCHES        += march?armv7=march?armv8-a
 157 MULTILIB_MATCHES        += $(foreach ARCH, $(v8_a_nosimd_variants), \
 158                              march?armv7=march?armv8-a$(ARCH))
 159
 160 # ARMv8 with SIMD
 161 MULTILIB_MATCHES        += march?armv7+fp=march?armv8-a+crc+simd \
 162                            $(foreach ARCH, $(v8_a_simd_variants), \
 163                              march?armv7+fp=march?armv8-a$(ARCH) \
 164                              march?armv7+fp=march?armv8-a+crc$(ARCH))
 165
 166 # Baseline v8.1-a
 167 MULTILIB_MATCHES        += march?armv7=march?armv8.1-a
 168
 169 # Map all v8.1-a SIMD variants
 170 MULTILIB_MATCHES        += $(foreach ARCH, $(v8_1_a_simd_variants), \
 171                              march?armv7+fp=march?armv8.1-a$(ARCH))
 172
 173 # Baseline v8.2-a: map down to baseline v8-a
 174 MULTILIB_MATCHES        += march?armv7=march?armv8.2-a
 175
 176 # Baseline v8.3-a: map down to baseline v8-a
 177 MULTILIB_MATCHES        += march?armv7=march?armv8.3-a
 178
 179 # Map all v8.2-a SIMD variants.  v8.3-a SIMD variants have the same mappings
 180 MULTILIB_MATCHES        += $(foreach ARCH, $(v8_2_a_simd_variants), \
 181                              march?armv7+fp=march?armv8.2-a$(ARCH) \
 182                              march?armv7+fp=march?armv8.3-a$(ARCH))
 183
 184 # Baseline v8.4-a: map down to baseline v8-a
 185 MULTILIB_MATCHES        += march?armv7=march?armv8.4-a
 186
 187 # Map all v8.4-a SIMD variants
 188 MULTILIB_MATCHES        += $(foreach ARCH, $(v8_4_a_simd_variants), \
 189                              march?armv7+fp=march?armv8.4-a$(ARCH))
 190
 191 # Baseline v8.5-a: map down to baseline v8-a
 192 MULTILIB_MATCHES        += march?armv7=march?armv8.5-a
 193
 194 # Map all v8.5-a SIMD variants
 195 MULTILIB_MATCHES        += $(foreach ARCH, $(v8_5_a_simd_variants), \
 196                              march?armv7+fp=march?armv8.5-a$(ARCH))
 197
 198 # Baseline v8.6-a: map down to baseline v8-a
 199 MULTILIB_MATCHES        += march?armv7=march?armv8.6-a
 200
 201 # Map all v8.6-a SIMD variants
 202 MULTILIB_MATCHES        += $(foreach ARCH, $(v8_6_a_simd_variants), \
 203                              march?armv7+fp=march?armv8.6-a$(ARCH))
 204
 205 endif           # Not APROFILE.
 206
 207 # Use Thumb libraries for everything.
 208
 209 MULTILIB_REUSE          += mthumb/march.armv7/mfloat-abi.soft=marm/march.armv7/mfloat-abi.soft
 210
 211 MULTILIB_REUSE          += $(foreach ABI, hard softfp, \
 212                              $(foreach ARCH, armv7+fp armv7-r+fp\.sp, \
 213                                mthumb/march.$(ARCH)/mfloat-abi.$(ABI)=marm/march.$(ARCH)/mfloat-abi.$(ABI)))
 214
 215 # Softfp but no FP, use the soft-float libraries.
 216 MULTILIB_REUSE          += $(foreach MODE, arm thumb, \
 217                              $(foreach ARCH, armv7, \
 218                                mthumb/march.$(ARCH)/mfloat-abi.soft=m$(MODE)/march.$(ARCH)/mfloat-abi.softfp))
 219