+2017-05-05 Thomas Preud'homme <thomas.preudhomme@arm.com>
+
+ * config.gcc: Allow combinations of aprofile and rmprofile values for
+ --with-multilib-list.
+ * config/arm/t-multilib: New file.
+ * config/arm/t-aprofile: Remove initialization of MULTILIB_*
+ variables. Remove setting of ISA and floating-point ABI in
+ MULTILIB_OPTIONS and MULTILIB_DIRNAMES. Set architecture and FPU in
+ MULTI_ARCH_OPTS_A and MULTI_ARCH_DIRS_A rather than MULTILIB_OPTIONS
+ and MULTILIB_DIRNAMES respectively. Add comment to introduce all
+ matches. Add architecture matches for marvel-pj4 and generic-armv7-a
+ CPU options.
+ * config/arm/t-rmprofile: Likewise except for the matches changes.
+ * doc/install.texi (--with-multilib-list): Document the combination of
+ aprofile and rmprofile values and warn about pitfalls in doing that.
+
2017-05-05 Wilco Dijkstra <wdijkstr@arm.com>
* config/aarch64/aarch64.md (movsi_aarch64): Remove '*' from r=w.
# Add extra multilibs
if test "x$with_multilib_list" != x; then
arm_multilibs=`echo $with_multilib_list | sed -e 's/,/ /g'`
- case ${arm_multilibs} in
- aprofile)
- # Note that arm/t-aprofile is a
- # stand-alone make file fragment to be
- # used only with itself. We do not
- # specifically use the
- # TM_MULTILIB_OPTION framework because
- # this shorthand is more
- # pragmatic.
- tmake_profile_file="arm/t-aprofile"
- ;;
- rmprofile)
- # Note that arm/t-rmprofile is a
- # stand-alone make file fragment to be
- # used only with itself. We do not
- # specifically use the
- # TM_MULTILIB_OPTION framework because
- # this shorthand is more
- # pragmatic.
- tmake_profile_file="arm/t-rmprofile"
- ;;
- default)
- ;;
- *)
- echo "Error: --with-multilib-list=${with_multilib_list} not supported." 1>&2
- exit 1
- ;;
- esac
+ if test "x${arm_multilibs}" != xdefault ; then
+ for arm_multilib in ${arm_multilibs}; do
+ case ${arm_multilib} in
+ aprofile|rmprofile)
+ tmake_profile_file="arm/t-multilib"
+ ;;
+ *)
+ echo "Error: --with-multilib-list=${with_multilib_list} not supported." 1>&2
+ exit 1
+ ;;
+ esac
+ done
if test "x${tmake_profile_file}" != x ; then
# arm/t-aprofile and arm/t-rmprofile are only
# have their default values during the configure step. We enforce
# this during the top-level configury.
-MULTILIB_OPTIONS =
-MULTILIB_DIRNAMES =
-MULTILIB_EXCEPTIONS =
-MULTILIB_MATCHES =
-MULTILIB_REUSE =
+# Arch and FPU variants to build libraries with
-# We have the following hierachy:
-# ISA: A32 (.) or T32 (thumb)
-# Architecture: ARMv7-A (v7-a), ARMv7VE (v7ve), or ARMv8-A (v8-a).
-# FPU: VFPv3-D16 (fpv3), NEONv1 (simdv1), VFPv4-D16 (fpv4),
-# NEON-VFPV4 (simdvfpv4), NEON for ARMv8 (simdv8), or None (.).
-# Float-abi: Soft (.), softfp (softfp), or hard (hardfp).
+MULTI_ARCH_OPTS_A = march=armv7-a/march=armv7ve/march=armv8-a
+MULTI_ARCH_DIRS_A = v7-a v7ve v8-a
-MULTILIB_OPTIONS += mthumb
-MULTILIB_DIRNAMES += thumb
-
-MULTILIB_OPTIONS += march=armv7-a/march=armv7ve/march=armv8-a
-MULTILIB_DIRNAMES += v7-a v7ve v8-a
-
-MULTILIB_OPTIONS += mfpu=vfpv3-d16/mfpu=neon/mfpu=vfpv4-d16/mfpu=neon-vfpv4/mfpu=neon-fp-armv8
-MULTILIB_DIRNAMES += fpv3 simdv1 fpv4 simdvfpv4 simdv8
-
-MULTILIB_OPTIONS += mfloat-abi=softfp/mfloat-abi=hard
-MULTILIB_DIRNAMES += softfp hard
+MULTI_FPU_OPTS_A = mfpu=vfpv3-d16/mfpu=neon/mfpu=vfpv4-d16/mfpu=neon-vfpv4/mfpu=neon-fp-armv8
+MULTI_FPU_DIRS_A = fpv3 simdv1 fpv4 simdvfpv4 simdv8
# Option combinations to build library with
MULTILIB_REQUIRED += *march=armv8-a/mfpu=neon-fp-armv8/mfloat-abi=*
+# Matches
+
# CPU Matches
+MULTILIB_MATCHES += march?armv7-a=mcpu?marvell-pj4
+MULTILIB_MATCHES += march?armv7-a=mcpu?generic-armv7-a
MULTILIB_MATCHES += march?armv7-a=mcpu?cortex-a8
MULTILIB_MATCHES += march?armv7-a=mcpu?cortex-a9
MULTILIB_MATCHES += march?armv7-a=mcpu?cortex-a5
--- /dev/null
+# Copyright (C) 2016 Free Software Foundation, Inc.
+#
+# This file is part of GCC.
+#
+# GCC is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GCC is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GCC; see the file COPYING3. If not see
+# <http://www.gnu.org/licenses/>.
+
+# This is a target makefile fragment that attempts to get
+# multilibs built for the range of CPU's, FPU's and ABI's that
+# are relevant for the ARM architecture. It should not be used in
+# conjunction with another make file fragment and assumes --with-arch,
+# --with-cpu, --with-fpu, --with-float, --with-mode have their default
+# values during the configure step. We enforce this during the
+# top-level configury.
+
+MULTILIB_OPTIONS =
+MULTILIB_DIRNAMES =
+MULTILIB_EXCEPTIONS =
+MULTILIB_MATCHES =
+MULTILIB_REUSE =
+
+comma := ,
+tm_multilib_list := $(subst $(comma), ,$(TM_MULTILIB_CONFIG))
+
+HAS_APROFILE := $(filter aprofile,$(tm_multilib_list))
+HAS_RMPROFILE := $(filter rmprofile,$(tm_multilib_list))
+
+ifneq (,$(HAS_APROFILE))
+include $(srcdir)/config/arm/t-aprofile
+endif
+ifneq (,$(HAS_RMPROFILE))
+include $(srcdir)/config/arm/t-rmprofile
+endif
+SEP := $(and $(HAS_APROFILE),$(HAS_RMPROFILE),/)
+
+
+# We have the following hierachy:
+# ISA: A32 (.) or T16/T32 (thumb)
+# Architecture: ARMv6-M (v6-m), ARMv7-M (v7-m), ARMv7E-M (v7e-m),
+# ARMv7 (v7-ar), ARMv7-A (v7-a), ARMv7VE (v7ve),
+# ARMv8-M Baseline (v8-m.base), ARMv8-M Mainline (v8-m.main)
+# or ARMv8-A (v8-a).
+# FPU: VFPv3-D16 (fpv3), NEONv1 (simdv1), FPV4-SP-D16 (fpv4-sp),
+# VFPv4-D16 (fpv4), NEON-VFPV4 (simdvfpv4), FPV5-SP-D16 (fpv5-sp),
+# VFPv5-D16 (fpv5), NEON for ARMv8 (simdv8), or None (.).
+# Float-abi: Soft (.), softfp (softfp), or hard (hard).
+
+MULTILIB_OPTIONS += mthumb
+MULTILIB_DIRNAMES += thumb
+
+MULTILIB_OPTIONS += $(MULTI_ARCH_OPTS_A)$(SEP)$(MULTI_ARCH_OPTS_RM)
+MULTILIB_DIRNAMES += $(MULTI_ARCH_DIRS_A) $(MULTI_ARCH_DIRS_RM)
+
+MULTILIB_OPTIONS += $(MULTI_FPU_OPTS_A)$(SEP)$(MULTI_FPU_OPTS_RM)
+MULTILIB_DIRNAMES += $(MULTI_FPU_DIRS_A) $(MULTI_FPU_DIRS_RM)
+
+MULTILIB_OPTIONS += mfloat-abi=softfp/mfloat-abi=hard
+MULTILIB_DIRNAMES += softfp hard
# values during the configure step. We enforce this during the
# top-level configury.
-MULTILIB_OPTIONS =
-MULTILIB_DIRNAMES =
-MULTILIB_EXCEPTIONS =
-MULTILIB_MATCHES =
-MULTILIB_REUSE =
-# We have the following hierachy:
-# ISA: A32 (.) or T16/T32 (thumb).
-# Architecture: ARMv6S-M (v6-m), ARMv7-M (v7-m), ARMv7E-M (v7e-m),
-# ARMv8-M Baseline (v8-m.base) or ARMv8-M Mainline (v8-m.main).
-# FPU: VFPv3-D16 (fpv3), FPV4-SP-D16 (fpv4-sp), FPV5-SP-D16 (fpv5-sp),
-# VFPv5-D16 (fpv5), or None (.).
-# Float-abi: Soft (.), softfp (softfp), or hard (hardfp).
+# Arch and FPU variants to build libraries with
-# Options to build libraries with
+MULTI_ARCH_OPTS_RM = march=armv6s-m/march=armv7-m/march=armv7e-m/march=armv7/march=armv8-m.base/march=armv8-m.main
+MULTI_ARCH_DIRS_RM = v6-m v7-m v7e-m v7-ar v8-m.base v8-m.main
-MULTILIB_OPTIONS += mthumb
-MULTILIB_DIRNAMES += thumb
-
-MULTILIB_OPTIONS += march=armv6s-m/march=armv7-m/march=armv7e-m/march=armv7/march=armv8-m.base/march=armv8-m.main
-MULTILIB_DIRNAMES += v6-m v7-m v7e-m v7-ar v8-m.base v8-m.main
-
-MULTILIB_OPTIONS += mfpu=vfpv3-d16/mfpu=fpv4-sp-d16/mfpu=fpv5-sp-d16/mfpu=fpv5-d16
-MULTILIB_DIRNAMES += fpv3 fpv4-sp fpv5-sp fpv5
-
-MULTILIB_OPTIONS += mfloat-abi=softfp/mfloat-abi=hard
-MULTILIB_DIRNAMES += softfp hard
+MULTI_FPU_OPTS_RM = mfpu=vfpv3-d16/mfpu=fpv4-sp-d16/mfpu=fpv5-sp-d16/mfpu=fpv5-d16
+MULTI_FPU_DIRS_RM = fpv3 fpv4-sp fpv5-sp fpv5
# Option combinations to build library with
@table @code
@item arm*-*-*
-@var{list} is one of@code{default}, @code{aprofile} or @code{rmprofile}.
-Specifying @code{default} is equivalent to omitting this option, ie. only the
-default runtime library will be enabled. Specifying @code{aprofile} or
-@code{rmprofile} builds multilibs for a combination of ISA, architecture,
-FPU available and floating-point ABI.
+@var{list} is a comma separated list of @code{aprofile} and @code{rmprofile}
+to build multilibs for A or R and M architecture profiles respectively. Note
+that, due to some limitation of the current multilib framework, using the
+combined @code{aprofile,rmprofile} multilibs selects in some cases a less
+optimal multilib than when using the multilib profile for the architecture
+targetted. The special value @code{default} is also accepted and is equivalent
+to omitting the option, ie. only the default run-time library will be enabled.
The table below gives the combination of ISAs, architectures, FPUs and
floating-point ABIs for which multilibs are built for each accepted value.
+The union of these options is considered when specifying both @code{aprofile}
+and @code{rmprofile}.
@multitable @columnfractions .15 .28 .30
@item Option @tab aprofile @tab rmprofile
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