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freebsd-src/share/mk/bsd.cpu.mk
Dimitry Andric 2fd73b7126 share/mk/bsd.cpu.mk: add F16C feature for i386 and amd64 architectures 
As discussed in bug 278417, some ports require the F16C instruction set
to compile, but there is no way yet to detect whether the currently
chosen CPUTYPE supports this feature.

Add the feature to the MACHINE_CPU variable, for each processor that
supports it. The list of processors was extracted from clang 18's -dM
output, filtered on the __F16C__ define.

PR:		278417
Reviewed by:	brooks, emaste
MFC after:	3 days
Differential Revision: https://reviews.freebsd.org/D44848
2024-04-18 20:42:21 +02:00

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# 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_ARCH} == "powerpc"
MACHINE_CPU = aim
. elif ${MACHINE_ARCH} == "powerpc64"
MACHINE_CPU = aim altivec
. elif ${MACHINE_ARCH} == "powerpc64le"
MACHINE_CPU = aim altivec vsx vsx2
. elif ${MACHINE_CPUARCH} == "riscv"
MACHINE_CPU = riscv
. 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} == "skx"
CPUTYPE = skylake-avx512
. 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
. 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/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} == "cortexa"
_CPUCFLAGS = -march=armv7 -mfpu=vfp
. elif ${CPUTYPE:Marmv[67]*} != ""
# Handle all the armvX types that FreeBSD runs:
# armv6, armv6t2, armv7, armv7-a, armv7ve
# they require -march=. All the others require -mcpu=.
_CPUCFLAGS = -march=${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:
# arm1176jzf-s
# armv7: 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}
. endif
. elif ${MACHINE_ARCH:Mpowerpc64*} != ""
_CPUCFLAGS = -mcpu=${CPUTYPE}
. elif ${MACHINE_CPUARCH} == "aarch64"
. if ${CPUTYPE:Marmv*} != ""
# Use -march when the CPU type is an architecture value, e.g. armv8.1-a
_CPUCFLAGS = -march=${CPUTYPE}
. else
# Otherwise assume we have a CPU type
_CPUCFLAGS = -mcpu=${CPUTYPE}
. endif
. 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} == "znver4"
MACHINE_CPU = avx512 avx2 avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586 f16c
. elif ${CPUTYPE} == "znver3" || ${CPUTYPE} == "znver2" || \
${CPUTYPE} == "znver1"
MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586 f16c
. elif ${CPUTYPE} == "bdver4"
MACHINE_CPU = xop avx2 avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586 f16c
. elif ${CPUTYPE} == "bdver3" || ${CPUTYPE} == "bdver2"
MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586 f16c
. elif ${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 f16c
. 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} == "sapphirerapids" || ${CPUTYPE} == "tigerlake" || \
${CPUTYPE} == "cooperlake" || ${CPUTYPE} == "cascadelake" || \
${CPUTYPE} == "icelake-server" || ${CPUTYPE} == "icelake-client" || \
${CPUTYPE} == "cannonlake" || ${CPUTYPE} == "knm" || \
${CPUTYPE} == "skylake-avx512" || ${CPUTYPE} == "knl" || \
${CPUTYPE} == "x86-64-v4"
MACHINE_CPU = avx512 avx2 avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586 f16c
. elif ${CPUTYPE} == "alderlake" || ${CPUTYPE} == "skylake" || \
${CPUTYPE} == "broadwell" || ${CPUTYPE} == "haswell" || \
${CPUTYPE} == "x86-64-v3"
MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586 f16c
. elif ${CPUTYPE} == "ivybridge"
MACHINE_CPU = avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586 f16c
. elif ${CPUTYPE} == "sandybridge"
MACHINE_CPU = avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
. elif ${CPUTYPE} == "tremont" || ${CPUTYPE} == "goldmont-plus" || \
${CPUTYPE} == "goldmont" || ${CPUTYPE} == "westmere" || \
${CPUTYPE} == "nehalem" || ${CPUTYPE} == "silvermont" || \
${CPUTYPE} == "x86-64-v2"
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" || ${CPUTYPE} == "x86-64"
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} == "znver4"
MACHINE_CPU = avx512 avx2 avx sse42 sse41 ssse3 sse4a sse3 f16c
. elif ${CPUTYPE} == "znver3" || ${CPUTYPE} == "znver2" || \
${CPUTYPE} == "znver1"
MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse4a sse3 f16c
. elif ${CPUTYPE} == "bdver4"
MACHINE_CPU = xop avx2 avx sse42 sse41 ssse3 sse4a sse3 f16c
. elif ${CPUTYPE} == "bdver3" || ${CPUTYPE} == "bdver2"
MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3 f16c
. elif ${CPUTYPE} == "bdver1"
MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3
. elif ${CPUTYPE} == "btver2"
MACHINE_CPU = avx sse42 sse41 ssse3 sse4a sse3 f16c
. 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} == "sapphirerapids" || ${CPUTYPE} == "tigerlake" || \
${CPUTYPE} == "cooperlake" || ${CPUTYPE} == "cascadelake" || \
${CPUTYPE} == "icelake-server" || ${CPUTYPE} == "icelake-client" || \
${CPUTYPE} == "cannonlake" || ${CPUTYPE} == "knm" || \
${CPUTYPE} == "skylake-avx512" || ${CPUTYPE} == "knl" || \
${CPUTYPE} == "x86-64-v4"
MACHINE_CPU = avx512 avx2 avx sse42 sse41 ssse3 sse3 f16c
. elif ${CPUTYPE} == "alderlake" || ${CPUTYPE} == "skylake" || \
${CPUTYPE} == "broadwell" || ${CPUTYPE} == "haswell" || \
${CPUTYPE} == "x86-64-v3"
MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse3 f16c
. elif ${CPUTYPE} == "ivybridge"
MACHINE_CPU = avx sse42 sse41 ssse3 sse3 f16c
. elif ${CPUTYPE} == "sandybridge"
MACHINE_CPU = avx sse42 sse41 ssse3 sse3
. elif ${CPUTYPE} == "tremont" || ${CPUTYPE} == "goldmont-plus" || \
${CPUTYPE} == "goldmont" || ${CPUTYPE} == "westmere" || \
${CPUTYPE} == "nehalem" || ${CPUTYPE} == "silvermont" || \
${CPUTYPE} == "x86-64-v2"
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
########## powerpc
. elif ${MACHINE_ARCH} == "powerpc"
. if ${CPUTYPE} == "e500"
MACHINE_CPU = booke softfp
. elif ${CPUTYPE} == "g4"
MACHINE_CPU = aim altivec
. else
MACHINE_CPU= aim
. endif
. elif ${MACHINE_ARCH} == "powerpc64"
. if ${CPUTYPE} == "e5500"
MACHINE_CPU = booke
. elif ${CPUTYPE} == power7
MACHINE_CPU = altivec vsx
. elif ${CPUTYPE} == power8
MACHINE_CPU = altivec vsx vsx2
. elif ${CPUTYPE} == power9
MACHINE_CPU = altivec vsx vsx2 vsx3
. else
MACHINE_CPU = aim altivec
. endif
. elif ${MACHINE_ARCH} == "powerpc64le"
MACHINE_CPU = aim altivec vsx vsx2
. if ${CPUTYPE} == power9
MACHINE_CPU += vsx3
. endif
########## riscv
. elif ${MACHINE_CPUARCH} == "riscv"
MACHINE_CPU = riscv
. endif
.endif
########## arm
.if ${MACHINE_CPUARCH} == "arm"
MACHINE_CPU += arm
. if ${MACHINE_ARCH:Marmv6*} != ""
MACHINE_CPU += armv6
. endif
. if ${MACHINE_ARCH:Marmv7*} != ""
MACHINE_CPU += armv7
. endif
# Normally armv6 and armv7 are 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 defined(CPUTYPE) && ${CPUTYPE:M*soft*} != ""
# Needs to be CFLAGS not _CPUCFLAGS because it's needed for the ABI
# not a nice optimization. Please note: softfp ABI uses hardware floating
# instructions, but passes arguments to function calls in integer regsiters.
# -mfloat-abi=soft is full software floating point, but is not currently
# supported. softfp support in FreeBSD may disappear in FreeBSD 13.0 since
# it was a transition tool from FreeBSD 10 to 11 and is a bit of an odd duck.
CFLAGS += -mfloat-abi=softfp
. endif
.endif
.if ${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "powerpcspe"
LDFLAGS.bfd+= -Wl,--secure-plt
.endif
.if ${MACHINE_ARCH} == "powerpcspe"
CFLAGS += -mcpu=8548 -mspe
CFLAGS.gcc+= -mabi=spe -mfloat-gprs=double -Wa,-me500
.endif
.if ${MACHINE_CPUARCH} == "riscv"
CFLAGS += -march=rv64imafdc -mabi=lp64d
.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 -mno-avx2
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}}
#
# MACHINE_ABI is a list of properties about the ABI used for MACHINE_ARCH.
# The following properties are indicated with one of the follow values:
#
# Byte order: big-endian, little-endian
# Floating point ABI: soft-float, hard-float
# Size of long (size_t, etc): long32, long64
# Pointer type: ptr32, ptr64
# Size of time_t: time32, time64
#
.if (${MACHINE} == "arm" && (defined(CPUTYPE) && ${CPUTYPE:M*soft*})) || \
(${MACHINE_ARCH} == "powerpc" && (defined(CPUTYPE) && ${CPUTYPE} == "e500"))
MACHINE_ABI+= soft-float
.else
MACHINE_ABI+= hard-float
.endif
# Currently all 64-bit architectures include 64 in their name (see arch(7)).
.if ${MACHINE_ARCH:M*64*}
MACHINE_ABI+= long64
.else
MACHINE_ABI+= long32
.endif
.if ${MACHINE_ABI:Mlong64}
MACHINE_ABI+= ptr64
.else
MACHINE_ABI+= ptr32
.endif
.if ${MACHINE_ARCH} == "i386"
MACHINE_ABI+= time32
.else
MACHINE_ABI+= time64
.endif
.if ${MACHINE_ARCH:Mpowerpc*} && !${MACHINE_ARCH:M*le}
MACHINE_ABI+= big-endian
.else
MACHINE_ABI+= little-endian
.endif
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