[thirdparty/gcc.git] / gcc / config / arm / t-multilib

# Copyright (C) 2016-2020 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.

s-mlib: $(srcdir)/config/arm/t-multilib $(srcdir)/config/arm/t-aprofile $(srcdir)/config/arm/t-rmprofile

MULTILIB_OPTIONS     =
MULTILIB_DIRNAMES    =
MULTILIB_EXCEPTIONS  =
MULTILIB_MATCHES     =
MULTILIB_REUSE	     =
MULTILIB_REQUIRED    =

comma := ,
tm_multilib_list := $(subst $(comma), ,$(TM_MULTILIB_CONFIG))

HAS_APROFILE := $(filter aprofile,$(tm_multilib_list))
HAS_RMPROFILE := $(filter rmprofile,$(tm_multilib_list))

# Produce the combinatorial list of extensions.  Where there are
# multiple permutations for a combination, the ordering is the
# selected by the forward ordering of the original list.  This matches
# the canonical ordering generated by the canonicalizer in the driver.
#
# For example,
#   $(call all_feat_combs, a b)
# will produce
#   +a +a+b +b
# but will not include
#   +b+a
# The rule is recursive and can be called with any (reasonable) list of
# extensions.
all_feat_combs	= +$(firstword $(1)) \
		  $(if $(wordlist 2, $(words $(1)), $(1)), \
		    $(foreach OPT, \
		      $(call all_feat_combs, \
		        $(wordlist 2, $(words $(1)), $(1))), \
		      +$(firstword $(1))$(OPT) $(OPT)),)

# Variables used.
all_early_arch		:= armv5tej armv6 armv6j armv6k armv6z armv6kz \
			   armv6zk armv6t2 iwmmxt iwmmxt2
v7_a_arch_variants	:= $(call all_feat_combs, mp sec)
v7_a_nosimd_variants	:= +fp +vfpv3 +vfpv3-d16-fp16 +vfpv3-fp16 +vfpv4-d16 +vfpv4
v7_a_simd_variants	:= +simd +neon-fp16 +neon-vfpv4
v7_r_sp_variants	:= +fp.sp +fp.sp+idiv +vfpv3xd-fp16 +vfpv3xd-fp16+idiv
v7_r_dp_variants	:= +fp +fp+idiv +vfpv3-d16-fp16 +vfpv3-d16-fp16+idiv
v7ve_nosimd_variants	:= +vfpv3-d16 +vfpv3 +vfpv3-d16-fp16 +vfpv3-fp16 +fp +vfpv4
v7ve_vfpv3_simd_variants := +neon +neon-fp16
v7ve_vfpv4_simd_variants := +simd
v8_a_nosimd_variants	:= +crc
v8_a_simd_variants	:= $(call all_feat_combs, simd crypto)
v8_1_a_simd_variants	:= $(call all_feat_combs, simd crypto)
v8_2_a_simd_variants	:= $(call all_feat_combs, simd fp16 fp16fml crypto dotprod i8mm bf16)
v8_4_a_simd_variants	:= $(call all_feat_combs, simd fp16 crypto i8mm bf16)
v8_5_a_simd_variants	:= $(call all_feat_combs, simd fp16 crypto i8mm bf16)
v8_6_a_simd_variants	:= $(call all_feat_combs, simd fp16 crypto i8mm bf16)
v8_r_nosimd_variants	:= +crc

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),/)


MULTILIB_OPTIONS	+= marm/mthumb
MULTILIB_DIRNAMES	+= arm thumb

MULTILIB_OPTIONS	+= march=armv5te+fp/march=armv7/march=armv7+fp/march=armv7-r+fp.sp/$(MULTI_ARCH_OPTS_A)$(SEP)$(MULTI_ARCH_OPTS_RM)
MULTILIB_DIRNAMES	+= v5te v7 v7+fp v7-r+fp.sp $(MULTI_ARCH_DIRS_A) $(MULTI_ARCH_DIRS_RM)

MULTILIB_OPTIONS	+= mfloat-abi=soft/mfloat-abi=softfp/mfloat-abi=hard
MULTILIB_DIRNAMES	+= nofp softfp hard

MULTILIB_REQUIRED	+= mthumb/mfloat-abi=soft
MULTILIB_REQUIRED	+= marm/march=armv5te+fp/mfloat-abi=softfp
MULTILIB_REQUIRED	+= marm/march=armv5te+fp/mfloat-abi=hard

MULTILIB_REQUIRED	+= mthumb/march=armv7/mfloat-abi=soft
MULTILIB_REQUIRED	+= mthumb/march=armv7+fp/mfloat-abi=softfp
MULTILIB_REQUIRED	+= mthumb/march=armv7+fp/mfloat-abi=hard

MULTILIB_REQUIRED	+= mthumb/march=armv7-r+fp.sp/mfloat-abi=softfp
MULTILIB_REQUIRED	+= mthumb/march=armv7-r+fp.sp/mfloat-abi=hard

# Map v7-r with double precision down onto common v7 code.
MULTILIB_MATCHES	+= march?armv7=march?armv7-r
MULTILIB_MATCHES	+= march?armv7=march?armv7-r+idiv
MULTILIB_MATCHES	+= $(foreach ARCH, $(v7_r_dp_variants), \
			     march?armv7+fp=march?armv7-r$(ARCH))

# Map v7-r single precision variants to v7-r with single precision.
MULTILIB_MATCHES	+= $(foreach ARCH, \
			     $(filter-out +fp.sp, $(v7_r_sp_variants)), \
			     march?armv7-r+fp.sp=march?armv7-r$(ARCH))

MULTILIB_MATCHES	+= $(foreach ARCH, $(all_early_arch), \
			     march?armv5te+fp=march?$(ARCH)+fp)
# Map v8-r down onto common v7 code or v7-r sp.
MULTILIB_MATCHES	+= march?armv7=march?armv8-r
MULTILIB_MATCHES	+= $(foreach ARCH, $(v8_r_nosimd_variants), \
			     march?armv7=march?armv8-r$(ARCH))
MULTILIB_MATCHES	+= $(foreach ARCH,+simd +crypto, \
			     march?armv7+fp=march?armv8-r$(ARCH) \
			     march?armv7+fp=march?armv8-r+crc$(ARCH))
MULTILIB_MATCHES	+= march?armv7-r+fp.sp=march?armv8-r+fp.sp
MULTILIB_MATCHES	+= march?armv7-r+fp.sp=march?armv8-r+crc+fp.sp

ifeq (,$(HAS_APROFILE))
# Map all v7-a
MULTILIB_MATCHES	+= march?armv7=march?armv7-a
MULTILIB_MATCHES	+= $(foreach ARCH, $(v7_a_nosimd_variants) $(v7_a_simd_variants), \
			     march?armv7+fp=march?armv7-a$(ARCH))

MULTILIB_MATCHES	+= march?armv7=march?armv7ve

# ARMv7ve FP/SIMD variants: map down to v7+fp
MULTILIB_MATCHES	+= $(foreach ARCH, $(v7ve_nosimd_variants) $(v7ve_vfpv3_simd_variants) $(v7ve_vfpv4_simd_variants), \
			     march?armv7+fp=march?armv7ve$(ARCH))

# ARMv8
MULTILIB_MATCHES	+= march?armv7=march?armv8-a
MULTILIB_MATCHES	+= $(foreach ARCH, $(v8_a_nosimd_variants), \
			     march?armv7=march?armv8-a$(ARCH))

# ARMv8 with SIMD
MULTILIB_MATCHES	+= march?armv7+fp=march?armv8-a+crc+simd \
			   $(foreach ARCH, $(v8_a_simd_variants), \
			     march?armv7+fp=march?armv8-a$(ARCH) \
			     march?armv7+fp=march?armv8-a+crc$(ARCH))

# Baseline v8.1-a
MULTILIB_MATCHES	+= march?armv7=march?armv8.1-a

# Map all v8.1-a SIMD variants
MULTILIB_MATCHES	+= $(foreach ARCH, $(v8_1_a_simd_variants), \
			     march?armv7+fp=march?armv8.1-a$(ARCH))

# Baseline v8.2-a: map down to baseline v8-a
MULTILIB_MATCHES	+= march?armv7=march?armv8.2-a

# Baseline v8.3-a: map down to baseline v8-a
MULTILIB_MATCHES	+= march?armv7=march?armv8.3-a

# Map all v8.2-a SIMD variants.  v8.3-a SIMD variants have the same mappings
MULTILIB_MATCHES	+= $(foreach ARCH, $(v8_2_a_simd_variants), \
			     march?armv7+fp=march?armv8.2-a$(ARCH) \
			     march?armv7+fp=march?armv8.3-a$(ARCH))

# Baseline v8.4-a: map down to baseline v8-a
MULTILIB_MATCHES	+= march?armv7=march?armv8.4-a

# Map all v8.4-a SIMD variants
MULTILIB_MATCHES	+= $(foreach ARCH, $(v8_4_a_simd_variants), \
			     march?armv7+fp=march?armv8.4-a$(ARCH))

# Baseline v8.5-a: map down to baseline v8-a
MULTILIB_MATCHES	+= march?armv7=march?armv8.5-a

# Map all v8.5-a SIMD variants
MULTILIB_MATCHES	+= $(foreach ARCH, $(v8_5_a_simd_variants), \
			     march?armv7+fp=march?armv8.5-a$(ARCH))

# Baseline v8.6-a: map down to baseline v8-a
MULTILIB_MATCHES	+= march?armv7=march?armv8.6-a

# Map all v8.6-a SIMD variants
MULTILIB_MATCHES	+= $(foreach ARCH, $(v8_6_a_simd_variants), \
			     march?armv7+fp=march?armv8.6-a$(ARCH))

endif		# Not APROFILE.

# Use Thumb libraries for everything.

MULTILIB_REUSE		+= mthumb/march.armv7/mfloat-abi.soft=marm/march.armv7/mfloat-abi.soft

MULTILIB_REUSE		+= $(foreach ABI, hard softfp, \
			     $(foreach ARCH, armv7+fp armv7-r+fp\.sp, \
			       mthumb/march.$(ARCH)/mfloat-abi.$(ABI)=marm/march.$(ARCH)/mfloat-abi.$(ABI)))

# Softfp but no FP, use the soft-float libraries.
MULTILIB_REUSE		+= $(foreach MODE, arm thumb, \
			     $(foreach ARCH, armv7, \
			       mthumb/march.$(ARCH)/mfloat-abi.soft=m$(MODE)/march.$(ARCH)/mfloat-abi.softfp))
Commit	Line	Data
8d9254fc	1	# Copyright (C) 2016-2020 Free Software Foundation, Inc.
2f738ca5 TP	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
f4c8d44e AV	27	s-mlib: $(srcdir)/config/arm/t-multilib $(srcdir)/config/arm/t-aprofile $(srcdir)/config/arm/t-rmprofile
f4c8d44e AV	28
2f738ca5 TP	29	MULTILIB_OPTIONS =
	30	MULTILIB_DIRNAMES =
	31	MULTILIB_EXCEPTIONS =
	32	MULTILIB_MATCHES =
	33	MULTILIB_REUSE =
93aa40fe	34	MULTILIB_REQUIRED =
2f738ca5 TP	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
93aa40fe RE	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
42093880	62	# Variables used.
c3f808d3	63	all_early_arch := armv5tej armv6 armv6j armv6k armv6z armv6kz \
42093880	64	armv6zk armv6t2 iwmmxt iwmmxt2
cab81ec0	65	v7_a_arch_variants := $(call all_feat_combs, mp sec)
42093880 RE	66	v7_a_nosimd_variants := +fp +vfpv3 +vfpv3-d16-fp16 +vfpv3-fp16 +vfpv4-d16 +vfpv4
42093880 RE	67	v7_a_simd_variants := +simd +neon-fp16 +neon-vfpv4
f4c8d44e AV	68	v7_r_sp_variants := +fp.sp +fp.sp+idiv +vfpv3xd-fp16 +vfpv3xd-fp16+idiv
f4c8d44e AV	69	v7_r_dp_variants := +fp +fp+idiv +vfpv3-d16-fp16 +vfpv3-d16-fp16+idiv
42093880 RE	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)
f782b667 DZ	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 := $(call all_feat_combs, simd fp16 crypto i8mm bf16)
9029d342	80	v8_r_nosimd_variants := +crc
42093880	81
2f738ca5 TP	82	ifneq (,$(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
42093880 RE	91	MULTILIB_OPTIONS += marm/mthumb
	92	MULTILIB_DIRNAMES += arm thumb
	93
f4c8d44e AV	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)
f4c8d44e AV	95	MULTILIB_DIRNAMES += v5te v7 v7+fp v7-r+fp.sp $(MULTI_ARCH_DIRS_A) $(MULTI_ARCH_DIRS_RM)
42093880 RE	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
f4c8d44e AV	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.
42093880 RE	112	MULTILIB_MATCHES += march?armv7=march?armv7-r
42093880 RE	113	MULTILIB_MATCHES += march?armv7=march?armv7-r+idiv
f4c8d44e AV	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))
42093880 RE	121
	122	MULTILIB_MATCHES += $(foreach ARCH, $(all_early_arch), \
	123	march?armv5te+fp=march?$(ARCH)+fp)
f4c8d44e	124	# Map v8-r down onto common v7 code or v7-r sp.
9029d342 TP	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$(ARCH))
f4c8d44e AV	131	MULTILIB_MATCHES += march?armv7-r+fp.sp=march?armv8-r+fp.sp
f4c8d44e AV	132	MULTILIB_MATCHES += march?armv7-r+fp.sp=march?armv8-r+crc+fp.sp
42093880 RE	133
	134	ifeq (,$(HAS_APROFILE))
	135	# Map all v7-a
	136	MULTILIB_MATCHES += march?armv7=march?armv7-a
	137	MULTILIB_MATCHES += $(foreach ARCH, $(v7_a_nosimd_variants) $(v7_a_simd_variants), \
	138	march?armv7+fp=march?armv7-a$(ARCH))
	139
	140	MULTILIB_MATCHES += march?armv7=march?armv7ve
	141
	142	# ARMv7ve FP/SIMD variants: map down to v7+fp
	143	MULTILIB_MATCHES += $(foreach ARCH, $(v7ve_nosimd_variants) $(v7ve_vfpv3_simd_variants) $(v7ve_vfpv4_simd_variants), \
	144	march?armv7+fp=march?armv7ve$(ARCH))
	145
	146	# ARMv8
	147	MULTILIB_MATCHES += march?armv7=march?armv8-a
	148	MULTILIB_MATCHES += $(foreach ARCH, $(v8_a_nosimd_variants), \
	149	march?armv7=march?armv8-a$(ARCH))
	150
	151	# ARMv8 with SIMD
	152	MULTILIB_MATCHES += march?armv7+fp=march?armv8-a+crc+simd \
	153	$(foreach ARCH, $(v8_a_simd_variants), \
	154	march?armv7+fp=march?armv8-a$(ARCH) \
	155	march?armv7+fp=march?armv8-a+crc$(ARCH))
	156
	157	# Baseline v8.1-a
	158	MULTILIB_MATCHES += march?armv7=march?armv8.1-a
	159
	160	# Map all v8.1-a SIMD variants
	161	MULTILIB_MATCHES += $(foreach ARCH, $(v8_1_a_simd_variants), \
	162	march?armv7+fp=march?armv8.1-a$(ARCH))
	163
	164	# Baseline v8.2-a: map down to baseline v8-a
	165	MULTILIB_MATCHES += march?armv7=march?armv8.2-a
	166
a00a4222 KT	167	# Baseline v8.3-a: map down to baseline v8-a
	168	MULTILIB_MATCHES += march?armv7=march?armv8.3-a
	169
	170	# Map all v8.2-a SIMD variants. v8.3-a SIMD variants have the same mappings
42093880	171	MULTILIB_MATCHES += $(foreach ARCH, $(v8_2_a_simd_variants), \
a00a4222 KT	172	march?armv7+fp=march?armv8.2-a$(ARCH) \
a00a4222 KT	173	march?armv7+fp=march?armv8.3-a$(ARCH))
42093880	174
946c6c45 KT	175	# Baseline v8.4-a: map down to baseline v8-a
	176	MULTILIB_MATCHES += march?armv7=march?armv8.4-a
	177
	178	# Map all v8.4-a SIMD variants
	179	MULTILIB_MATCHES += $(foreach ARCH, $(v8_4_a_simd_variants), \
	180	march?armv7+fp=march?armv8.4-a$(ARCH))
	181
ae78a89f SD	182	# Baseline v8.5-a: map down to baseline v8-a
	183	MULTILIB_MATCHES += march?armv7=march?armv8.5-a
	184
	185	# Map all v8.5-a SIMD variants
	186	MULTILIB_MATCHES += $(foreach ARCH, $(v8_5_a_simd_variants), \
	187	march?armv7+fp=march?armv8.5-a$(ARCH))
	188
f782b667 DZ	189	# Baseline v8.6-a: map down to baseline v8-a
	190	MULTILIB_MATCHES += march?armv7=march?armv8.6-a
	191
	192	# Map all v8.6-a SIMD variants
	193	MULTILIB_MATCHES += $(foreach ARCH, $(v8_6_a_simd_variants), \
	194	march?armv7+fp=march?armv8.6-a$(ARCH))
	195
8d106dd5 RE	196	endif # Not APROFILE.
8d106dd5 RE	197
42093880 RE	198	# Use Thumb libraries for everything.
	199
	200	MULTILIB_REUSE += mthumb/march.armv7/mfloat-abi.soft=marm/march.armv7/mfloat-abi.soft
2f738ca5	201
42093880	202	MULTILIB_REUSE += $(foreach ABI, hard softfp, \
f4c8d44e	203	$(foreach ARCH, armv7+fp armv7-r+fp\.sp, \
42093880	204	mthumb/march.$(ARCH)/mfloat-abi.$(ABI)=marm/march.$(ARCH)/mfloat-abi.$(ABI)))
2f738ca5	205
42093880 RE	206	# Softfp but no FP, use the soft-float libraries.
	207	MULTILIB_REUSE += $(foreach MODE, arm thumb, \
	208	$(foreach ARCH, armv7, \
	209	mthumb/march.$(ARCH)/mfloat-abi.soft=m$(MODE)/march.$(ARCH)/mfloat-abi.softfp))
2f738ca5	210