gcc/config/arm/t-multilib

   1 # Copyright (C) 2016 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 MULTILIB_OPTIONS     =
  28 MULTILIB_DIRNAMES    =
  29 MULTILIB_EXCEPTIONS  =
  30 MULTILIB_MATCHES     =
  31 MULTILIB_REUSE       =
  32
  33 comma := ,
  34 tm_multilib_list := $(subst $(comma), ,$(TM_MULTILIB_CONFIG))
  35
  36 HAS_APROFILE := $(filter aprofile,$(tm_multilib_list))
  37 HAS_RMPROFILE := $(filter rmprofile,$(tm_multilib_list))
  38
  39 ifneq (,$(HAS_APROFILE))
  40 include $(srcdir)/config/arm/t-aprofile
  41 endif
  42 ifneq (,$(HAS_RMPROFILE))
  43 include $(srcdir)/config/arm/t-rmprofile
  44 endif
  45 SEP := $(and $(HAS_APROFILE),$(HAS_RMPROFILE),/)
  46
  47
  48 # We have the following hierachy:
  49 #   ISA: A32 (.) or T16/T32 (thumb)
  50 #   Architecture: ARMv6-M (v6-m), ARMv7-M (v7-m), ARMv7E-M (v7e-m),
  51 #                 ARMv7 (v7-ar), ARMv7-A (v7-a), ARMv7VE (v7ve),
  52 #                 ARMv8-M Baseline (v8-m.base), ARMv8-M Mainline (v8-m.main)
  53 #                 or ARMv8-A (v8-a).
  54 #   FPU: VFPv3-D16 (fpv3), NEONv1 (simdv1), FPV4-SP-D16 (fpv4-sp),
  55 #        VFPv4-D16 (fpv4), NEON-VFPV4 (simdvfpv4), FPV5-SP-D16 (fpv5-sp),
  56 #        VFPv5-D16 (fpv5), NEON for ARMv8 (simdv8), or None (.).
  57 #   Float-abi: Soft (.), softfp (softfp), or hard (hard).
  58
  59 MULTILIB_OPTIONS       += mthumb
  60 MULTILIB_DIRNAMES      += thumb
  61
  62 MULTILIB_OPTIONS       += $(MULTI_ARCH_OPTS_A)$(SEP)$(MULTI_ARCH_OPTS_RM)
  63 MULTILIB_DIRNAMES      += $(MULTI_ARCH_DIRS_A) $(MULTI_ARCH_DIRS_RM)
  64
  65 MULTILIB_OPTIONS       += $(MULTI_FPU_OPTS_A)$(SEP)$(MULTI_FPU_OPTS_RM)
  66 MULTILIB_DIRNAMES      += $(MULTI_FPU_DIRS_A) $(MULTI_FPU_DIRS_RM)
  67
  68 MULTILIB_OPTIONS       += mfloat-abi=softfp/mfloat-abi=hard
  69 MULTILIB_DIRNAMES      += softfp hard