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freebsd-nq/share/mk/bsd.cpu.mk
John Baldwin ea22493a46 Explicitly set the desired MIPS ABI in toolchain flags. 
Specifically, set '-mabi=XX' in AFLAGS, CFLAGS, and LDFLAGS.  This permits
building MIPS worlds and binaries with a toolchain whose default output
does not match the desired TARGET_ARCH.

_LDFLAGS (which is used with LD instead of with CC) required an update as
LD does not accept the -mabi flags (so they must be stripped from LDFLAGS
when generating _LDFLAGS).  For bare uses of LD (rather than linking via
CC), the desired ABI must be set by setting an explicit linker emulation
as done in r316514 for kernels and kernel modules.

Reviewed by:	imp
Sponsored by:	DARPA / AFRL
Differential Revision:	https://reviews.freebsd.org/D10085
2017-04-07 20:02:01 +00:00

403 lines
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# $FreeBSD$
# Set default CPU compile flags and baseline CPUTYPE for each arch. The
# compile flags must support the minimum CPU type for each architecture but
# may tune support for more advanced processors.
.if !defined(CPUTYPE) || empty(CPUTYPE)
_CPUCFLAGS =
. if ${MACHINE_CPUARCH} == "aarch64"
MACHINE_CPU = arm64
. elif ${MACHINE_CPUARCH} == "amd64"
MACHINE_CPU = amd64 sse2 sse mmx
. elif ${MACHINE_CPUARCH} == "arm"
MACHINE_CPU = arm
. elif ${MACHINE_CPUARCH} == "i386"
MACHINE_CPU = i486
. elif ${MACHINE_CPUARCH} == "mips"
MACHINE_CPU = mips
. elif ${MACHINE_CPUARCH} == "powerpc"
MACHINE_CPU = aim
. elif ${MACHINE_CPUARCH} == "riscv"
MACHINE_CPU = riscv
. elif ${MACHINE_CPUARCH} == "sparc64"
MACHINE_CPU = ultrasparc
. endif
.else
# Handle aliases (not documented in make.conf to avoid user confusion
# between e.g. i586 and pentium)
. if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
. if ${CPUTYPE} == "barcelona"
CPUTYPE = amdfam10
. elif ${CPUTYPE} == "core-avx2"
CPUTYPE = haswell
. elif ${CPUTYPE} == "core-avx-i"
CPUTYPE = ivybridge
. elif ${CPUTYPE} == "corei7-avx"
CPUTYPE = sandybridge
. elif ${CPUTYPE} == "corei7"
CPUTYPE = nehalem
. elif ${CPUTYPE} == "slm"
CPUTYPE = silvermont
. elif ${CPUTYPE} == "atom"
CPUTYPE = bonnell
. elif ${CPUTYPE} == "core"
CPUTYPE = prescott
. endif
. if ${MACHINE_CPUARCH} == "amd64"
. if ${CPUTYPE} == "prescott"
CPUTYPE = nocona
. endif
. else
. if ${CPUTYPE} == "k7"
CPUTYPE = athlon
. elif ${CPUTYPE} == "p4"
CPUTYPE = pentium4
. elif ${CPUTYPE} == "p4m"
CPUTYPE = pentium4m
. elif ${CPUTYPE} == "p3"
CPUTYPE = pentium3
. elif ${CPUTYPE} == "p3m"
CPUTYPE = pentium3m
. elif ${CPUTYPE} == "p-m"
CPUTYPE = pentium-m
. elif ${CPUTYPE} == "p2"
CPUTYPE = pentium2
. elif ${CPUTYPE} == "i686"
CPUTYPE = pentiumpro
. elif ${CPUTYPE} == "i586/mmx"
CPUTYPE = pentium-mmx
. elif ${CPUTYPE} == "i586"
CPUTYPE = pentium
. endif
. endif
. elif ${MACHINE_ARCH} == "sparc64"
. if ${CPUTYPE} == "us"
CPUTYPE = ultrasparc
. elif ${CPUTYPE} == "us3"
CPUTYPE = ultrasparc3
. endif
. endif
###############################################################################
# Logic to set up correct gcc optimization flag. This must be included
# after /etc/make.conf so it can react to the local value of CPUTYPE
# defined therein. Consult:
# http://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html
# http://gcc.gnu.org/onlinedocs/gcc/RS-6000-and-PowerPC-Options.html
# http://gcc.gnu.org/onlinedocs/gcc/MIPS-Options.html
# http://gcc.gnu.org/onlinedocs/gcc/SPARC-Options.html
# http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86_002d64-Options.html
. if ${MACHINE_CPUARCH} == "i386"
. if ${CPUTYPE} == "crusoe"
_CPUCFLAGS = -march=i686 -falign-functions=0 -falign-jumps=0 -falign-loops=0
. elif ${CPUTYPE} == "k5"
_CPUCFLAGS = -march=pentium
. elif ${CPUTYPE} == "c7"
_CPUCFLAGS = -march=c3-2
. else
_CPUCFLAGS = -march=${CPUTYPE}
. endif
. elif ${MACHINE_CPUARCH} == "amd64"
_CPUCFLAGS = -march=${CPUTYPE}
. elif ${MACHINE_CPUARCH} == "arm"
. if ${CPUTYPE} == "xscale"
#XXX: gcc doesn't seem to like -mcpu=xscale, and dies while rebuilding itself
#_CPUCFLAGS = -mcpu=xscale
_CPUCFLAGS = -march=armv5te -D__XSCALE__
. elif ${CPUTYPE:M*soft*} != ""
_CPUCFLAGS = -mfloat-abi=softfp
. elif ${CPUTYPE} == "armv6"
# Not sure we still need ARM_ARCH_6=1 here.
_CPUCFLAGS = -march=${CPUTYPE} -DARM_ARCH_6=1
. elif ${CPUTYPE} == "cortexa"
_CPUCFLAGS = -march=armv7 -DARM_ARCH_6=1 -mfpu=vfp
. elif ${CPUTYPE:Marmv[4567]*} != ""
# Handle all the armvX types that FreeBSD runs:
# armv4, armv4t, armv5, armv5te, armv6, armv6t2, armv7, armv7-a, armv7ve
# they require -march=. All the others require -mcpu=.
_CPUCFLAGS = -march=${CPUTYPE}
. else
# Common values for FreeBSD
# arm: (any arm v4 or v5 processor you are targeting)
# arm920t, arm926ej-s, marvell-pj4, fa526, fa626,
# fa606te, fa626te, fa726te
# armv6: (any arm v7 or v8 processor you are targeting and the arm1176jzf-s)
# arm1176jzf-s, generic-armv7-a, cortex-a5, cortex-a7, cortex-a8,
# cortex-a9, cortex-a12, cortex-a15, cortex-a17, cortex-a53, cortex-a57,
# cortex-a72, exynos-m1
_CPUCFLAGS = -mcpu=${CPUTYPE}
. endif
. elif ${MACHINE_ARCH} == "powerpc"
. if ${CPUTYPE} == "e500"
_CPUCFLAGS = -Wa,-me500 -msoft-float
. else
_CPUCFLAGS = -mcpu=${CPUTYPE} -mno-powerpc64
. endif
. elif ${MACHINE_ARCH} == "powerpcspe"
_CPUCFLAGS = -Wa,-me500 -mspe=yes -mabi=spe -mfloat-gprs=double
. elif ${MACHINE_ARCH} == "powerpc64"
_CPUCFLAGS = -mcpu=${CPUTYPE}
. elif ${MACHINE_CPUARCH} == "mips"
# mips[1234], mips32, mips64, and all later releases need to have mips
# preserved (releases later than r2 require external toolchain)
. if ${CPUTYPE:Mmips32*} != "" || ${CPUTYPE:Mmips64*} != "" || \
${CPUTYPE:Mmips[1234]} != ""
_CPUCFLAGS = -march=${CPUTYPE}
. else
# Default -march to the CPUTYPE passed in, with mips stripped off so we
# accept either mips4kc or 4kc, mostly for historical reasons
# Typical values for cores:
# 4kc, 24kc, 34kc, 74kc, 1004kc, octeon, octeon+, octeon2, octeon3,
# sb1, xlp, xlr
_CPUCFLAGS = -march=${CPUTYPE:S/^mips//}
. endif
. elif ${MACHINE_ARCH} == "sparc64"
. if ${CPUTYPE} == "v9"
_CPUCFLAGS = -mcpu=v9
. elif ${CPUTYPE} == "ultrasparc"
_CPUCFLAGS = -mcpu=ultrasparc
. elif ${CPUTYPE} == "ultrasparc3"
_CPUCFLAGS = -mcpu=ultrasparc3
. endif
. elif ${MACHINE_CPUARCH} == "aarch64"
_CPUCFLAGS = -mcpu=${CPUTYPE}
. endif
# Set up the list of CPU features based on the CPU type. This is an
# unordered list to make it easy for client makefiles to test for the
# presence of a CPU feature.
########## i386
. if ${MACHINE_CPUARCH} == "i386"
. if ${CPUTYPE} == "znver1"
MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
. elif ${CPUTYPE} == "bdver4"
MACHINE_CPU = xop avx2 avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
. elif ${CPUTYPE} == "bdver3" || ${CPUTYPE} == "bdver2" || \
${CPUTYPE} == "bdver1"
MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
. elif ${CPUTYPE} == "btver2"
MACHINE_CPU = avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
. elif ${CPUTYPE} == "btver1"
MACHINE_CPU = ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
. elif ${CPUTYPE} == "amdfam10"
MACHINE_CPU = athlon-xp athlon k7 3dnow sse4a sse3 sse2 sse mmx k6 k5 i586
. elif ${CPUTYPE} == "opteron-sse3" || ${CPUTYPE} == "athlon64-sse3"
MACHINE_CPU = athlon-xp athlon k7 3dnow sse3 sse2 sse mmx k6 k5 i586
. elif ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || \
${CPUTYPE} == "athlon-fx"
MACHINE_CPU = athlon-xp athlon k7 3dnow sse2 sse mmx k6 k5 i586
. elif ${CPUTYPE} == "athlon-mp" || ${CPUTYPE} == "athlon-xp" || \
${CPUTYPE} == "athlon-4"
MACHINE_CPU = athlon-xp athlon k7 3dnow sse mmx k6 k5 i586
. elif ${CPUTYPE} == "athlon" || ${CPUTYPE} == "athlon-tbird"
MACHINE_CPU = athlon k7 3dnow mmx k6 k5 i586
. elif ${CPUTYPE} == "k6-3" || ${CPUTYPE} == "k6-2" || ${CPUTYPE} == "geode"
MACHINE_CPU = 3dnow mmx k6 k5 i586
. elif ${CPUTYPE} == "k6"
MACHINE_CPU = mmx k6 k5 i586
. elif ${CPUTYPE} == "k5"
MACHINE_CPU = k5 i586
. elif ${CPUTYPE} == "skylake" || ${CPUTYPE} == "knl"
MACHINE_CPU = avx512 avx2 avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
. elif ${CPUTYPE} == "broadwell" || ${CPUTYPE} == "haswell"
MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
. elif ${CPUTYPE} == "ivybridge" || ${CPUTYPE} == "sandybridge"
MACHINE_CPU = avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
. elif ${CPUTYPE} == "westmere" || ${CPUTYPE} == "nehalem" || \
${CPUTYPE} == "silvermont"
MACHINE_CPU = sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
. elif ${CPUTYPE} == "penryn"
MACHINE_CPU = sse41 ssse3 sse3 sse2 sse i686 mmx i586
. elif ${CPUTYPE} == "core2" || ${CPUTYPE} == "bonnell"
MACHINE_CPU = ssse3 sse3 sse2 sse i686 mmx i586
. elif ${CPUTYPE} == "yonah" || ${CPUTYPE} == "prescott"
MACHINE_CPU = sse3 sse2 sse i686 mmx i586
. elif ${CPUTYPE} == "pentium4" || ${CPUTYPE} == "pentium4m" || \
${CPUTYPE} == "pentium-m"
MACHINE_CPU = sse2 sse i686 mmx i586
. elif ${CPUTYPE} == "pentium3" || ${CPUTYPE} == "pentium3m"
MACHINE_CPU = sse i686 mmx i586
. elif ${CPUTYPE} == "pentium2"
MACHINE_CPU = i686 mmx i586
. elif ${CPUTYPE} == "pentiumpro"
MACHINE_CPU = i686 i586
. elif ${CPUTYPE} == "pentium-mmx"
MACHINE_CPU = mmx i586
. elif ${CPUTYPE} == "pentium"
MACHINE_CPU = i586
. elif ${CPUTYPE} == "c7"
MACHINE_CPU = sse3 sse2 sse i686 mmx i586
. elif ${CPUTYPE} == "c3-2"
MACHINE_CPU = sse i686 mmx i586
. elif ${CPUTYPE} == "c3"
MACHINE_CPU = 3dnow mmx i586
. elif ${CPUTYPE} == "winchip2"
MACHINE_CPU = 3dnow mmx
. elif ${CPUTYPE} == "winchip-c6"
MACHINE_CPU = mmx
. endif
MACHINE_CPU += i486
########## amd64
. elif ${MACHINE_CPUARCH} == "amd64"
. if ${CPUTYPE} == "znver1"
MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse4a sse3
. elif ${CPUTYPE} == "bdver4"
MACHINE_CPU = xop avx2 avx sse42 sse41 ssse3 sse4a sse3
. elif ${CPUTYPE} == "bdver3" || ${CPUTYPE} == "bdver2" || \
${CPUTYPE} == "bdver1"
MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3
. elif ${CPUTYPE} == "btver2"
MACHINE_CPU = avx sse42 sse41 ssse3 sse4a sse3
. elif ${CPUTYPE} == "btver1"
MACHINE_CPU = ssse3 sse4a sse3
. elif ${CPUTYPE} == "amdfam10"
MACHINE_CPU = k8 3dnow sse4a sse3
. elif ${CPUTYPE} == "opteron-sse3" || ${CPUTYPE} == "athlon64-sse3" || \
${CPUTYPE} == "k8-sse3"
MACHINE_CPU = k8 3dnow sse3
. elif ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || \
${CPUTYPE} == "athlon-fx" || ${CPUTYPE} == "k8"
MACHINE_CPU = k8 3dnow
. elif ${CPUTYPE} == "skylake" || ${CPUTYPE} == "knl"
MACHINE_CPU = avx512 avx2 avx sse42 sse41 ssse3 sse3
. elif ${CPUTYPE} == "broadwell" || ${CPUTYPE} == "haswell"
MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse3
. elif ${CPUTYPE} == "ivybridge" || ${CPUTYPE} == "sandybridge"
MACHINE_CPU = avx sse42 sse41 ssse3 sse3
. elif ${CPUTYPE} == "westmere" || ${CPUTYPE} == "nehalem" || \
${CPUTYPE} == "silvermont"
MACHINE_CPU = sse42 sse41 ssse3 sse3
. elif ${CPUTYPE} == "penryn"
MACHINE_CPU = sse41 ssse3 sse3
. elif ${CPUTYPE} == "core2" || ${CPUTYPE} == "bonnell"
MACHINE_CPU = ssse3 sse3
. elif ${CPUTYPE} == "nocona"
MACHINE_CPU = sse3
. endif
MACHINE_CPU += amd64 sse2 sse mmx
########## Mips
. elif ${MACHINE_CPUARCH} == "mips"
MACHINE_CPU = mips
########## powerpc
. elif ${MACHINE_ARCH} == "powerpc"
. if ${CPUTYPE} == "e500"
MACHINE_CPU = booke softfp
. endif
########## riscv
. elif ${MACHINE_CPUARCH} == "riscv"
MACHINE_CPU = riscv
########## sparc64
. elif ${MACHINE_ARCH} == "sparc64"
. if ${CPUTYPE} == "v9"
MACHINE_CPU = v9
. elif ${CPUTYPE} == "ultrasparc"
MACHINE_CPU = v9 ultrasparc
. elif ${CPUTYPE} == "ultrasparc3"
MACHINE_CPU = v9 ultrasparc ultrasparc3
. endif
. endif
.endif
.if ${MACHINE_CPUARCH} == "mips"
CFLAGS += -G0
. if ${MACHINE_ARCH:Mmips*el*} != ""
AFLAGS += -EL
CFLAGS += -EL
LDFLAGS += -EL
. else
AFLAGS += -EB
CFLAGS += -EB
LDFLAGS += -EB
. endif
. if ${MACHINE_ARCH:Mmips64*} != ""
AFLAGS+= -mabi=64
CFLAGS+= -mabi=64
LDFLAGS+= -mabi=64
. elif ${MACHINE_ARCH:Mmipsn32*} != ""
AFLAGS+= -mabi=n32
CFLAGS+= -mabi=n32
LDFLAGS+= -mabi=n32
. else
AFLAGS+= -mabi=32
CFLAGS+= -mabi=32
LDFLAGS+= -mabi=32
. endif
. if ${MACHINE_ARCH:Mmips*hf}
CFLAGS += -mhard-float
. else
CFLAGS += -msoft-float
. endif
.endif
########## arm
.if ${MACHINE_CPUARCH} == "arm"
MACHINE_CPU += arm
. if ${MACHINE_ARCH:Marmv6*} != ""
MACHINE_CPU += armv6
. endif
# armv6 is a hybrid. It can use the softfp ABI, but doesn't emulate
# floating point in the general case, so don't define softfp for
# it at this time. arm and armeb are pure softfp, so define it
# for them.
. if ${MACHINE_ARCH:Marmv6*} == ""
MACHINE_CPU += softfp
. endif
# Normally armv6 is hard float ABI from FreeBSD 11 onwards. However
# when CPUTYPE has 'soft' in it, we use the soft-float ABI to allow
# building of soft-float ABI libraries. In this case, we have to
# add the -mfloat-abi=softfp to force that.
.if ${MACHINE_ARCH:Marmv6*} && defined(CPUTYPE) && ${CPUTYPE:M*soft*} != ""
# Needs to be CFLAGS not _CPUCFLAGS because it's needed for the ABI
# not a nice optimization.
CFLAGS += -mfloat-abi=softfp
.endif
.endif
.if ${MACHINE_ARCH} == "powerpcspe"
CFLAGS += -mcpu=8540 -Wa,-me500 -mspe=yes -mabi=spe -mfloat-gprs=double
.endif
.if ${MACHINE_CPUARCH} == "riscv"
.if ${TARGET_ARCH:Mriscv*sf}
CFLAGS += -mno-float
ACFLAGS += -mno-float
.endif
.endif
# NB: COPTFLAGS is handled in /usr/src/sys/conf/kern.pre.mk
.if !defined(NO_CPU_CFLAGS)
CFLAGS += ${_CPUCFLAGS}
.endif
#
# Prohibit the compiler from emitting SIMD instructions.
# These flags are added to CFLAGS in areas where the extra context-switch
# cost outweighs the advantages of SIMD instructions.
#
# gcc:
# Setting -mno-mmx implies -mno-3dnow
# Setting -mno-sse implies -mno-sse2, -mno-sse3, -mno-ssse3 and -mfpmath=387
#
# clang:
# Setting -mno-mmx implies -mno-3dnow and -mno-3dnowa
# Setting -mno-sse implies -mno-sse2, -mno-sse3, -mno-ssse3, -mno-sse41 and
# -mno-sse42
# (-mfpmath= is not supported)
#
.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
CFLAGS_NO_SIMD.clang= -mno-avx
CFLAGS_NO_SIMD= -mno-mmx -mno-sse
.endif
CFLAGS_NO_SIMD += ${CFLAGS_NO_SIMD.${COMPILER_TYPE}}
# Add in any architecture-specific CFLAGS.
# These come from make.conf or the command line or the environment.
CFLAGS += ${CFLAGS.${MACHINE_ARCH}}
CXXFLAGS += ${CXXFLAGS.${MACHINE_ARCH}}
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