diff options
Diffstat (limited to 'share/mk/bsd.cpu.mk')
| -rw-r--r-- | share/mk/bsd.cpu.mk | 45 |
1 files changed, 43 insertions, 2 deletions
diff --git a/share/mk/bsd.cpu.mk b/share/mk/bsd.cpu.mk index 6ba87cc..112c2d5 100644 --- a/share/mk/bsd.cpu.mk +++ b/share/mk/bsd.cpu.mk @@ -150,6 +150,7 @@ _CPUCFLAGS = -mcpu=ultrasparc3 # 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} == "bdver4" MACHINE_CPU = xop avx2 avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586 @@ -218,6 +219,7 @@ MACHINE_CPU = 3dnow mmx MACHINE_CPU = mmx . endif MACHINE_CPU += i486 +########## amd64 . elif ${MACHINE_CPUARCH} == "amd64" . if ${CPUTYPE} == "bdver4" MACHINE_CPU = xop avx2 avx sse42 sse41 ssse3 sse4a sse3 @@ -253,10 +255,12 @@ MACHINE_CPU = ssse3 sse3 MACHINE_CPU = sse3 . endif MACHINE_CPU += amd64 sse2 sse mmx +########## powerpc . elif ${MACHINE_ARCH} == "powerpc" . if ${CPUTYPE} == "e500" -MACHINE_CPU = booke +MACHINE_CPU = booke softfp . endif +########## sparc64 . elif ${MACHINE_ARCH} == "sparc64" . if ${CPUTYPE} == "v9" MACHINE_CPU = v9 @@ -272,8 +276,24 @@ MACHINE_CPU = v9 ultrasparc ultrasparc3 CFLAGS += -G0 .endif +########## arm +.if ${MACHINE_CPUARCH} == "arm" +MACHINE_CPU += arm +. if ${MACHINE_ARCH:Marmv6*} != "" +MACHINE_CPU += armv6 +. endif +# armv6 is a hybrid. It uses 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 .if ${MACHINE_ARCH} == "armv6" -_CPUCFLAGS += -mfloat-abi=softfp +# Needs to be CFLAGS not _CPUCFLAGS because it's needed for the ABI +# not a nice optimization. +CFLAGS += -mfloat-abi=softfp +.endif .endif # NB: COPTFLAGS is handled in /usr/src/sys/conf/kern.pre.mk @@ -282,6 +302,27 @@ _CPUCFLAGS += -mfloat-abi=softfp 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}} |
