IABSD.fr/src/gnu/lib/libcompiler_rt

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• Author : patrick
  Date : 2021-12-28 15:45:17
  Hash : 9da016eb
  Message : Compile out-of-line helpers for atomic operations which can be enabled through -moutline-atomics. These are included by default in this updated version of compiler-rt, we just haven't enabled them yet. Some ports start to make use of that option, so it makes sense to provide these helpers. The helpers would make use of the ARMv8.1 LSE instructions, if we flagged that the running system supports those. As we do not yet have a mechanism to show support for LSE, the code will always fall back to regular atomics. Issue raised by jca@ Tested by phessler@ Input from jsg@ ok kettenis@

• Makefile

• # $OpenBSD: Makefile,v 1.6 2021/12/28 15:45:17 patrick Exp $
  
  .include <bsd.own.mk>
  
  .if ${COMPILER_VERSION:L} != "clang"
  CC=		clang
  CXX=		clang++
  .endif
  
  .if ${BUILD_CLANG:L} == "yes"
  
  LIB=	compiler_rt
  NOPIC=
  NOPROFILE=
  
  CFLAGS+=	-fPIC -std=gnu99 -fvisibility=hidden -fno-stack-protector
  CPPFLAGS+=	-I${.CURDIR}/../../llvm/compiler-rt/lib/builtins
  CPPFLAGS+=	-DVISIBILITY_HIDDEN
  
  .if ${MACHINE_ARCH} == "amd64"
  RTARCH=	x86_64
  .elif ${MACHINE_ARCH} == "powerpc"
  RTARCH=	ppc
  .else
  RTARCH=	${MACHINE_ARCH}
  .endif
  
  .PATH: ${.CURDIR}/../../llvm/compiler-rt/lib/builtins/${RTARCH}
  .PATH: ${.CURDIR}/../../llvm/compiler-rt/lib/builtins
  
  GEN_SRCS=	absvdi2 \
  		absvsi2 \
  		absvti2 \
  		addtf3 \
  		addvdi3 \
  		addvsi3 \
  		addvti3 \
  		apple_versioning \
  		ashldi3 \
  		ashlti3 \
  		ashrdi3 \
  		ashrti3 \
  		atomic \
  		bswapdi2 \
  		bswapsi2 \
  		clear_cache \
  		clzdi2 \
  		clzsi2 \
  		clzti2 \
  		cmpdi2 \
  		cmpti2 \
  		comparedf2 \
  		comparesf2 \
  		cpu_model \
  		ctzdi2 \
  		ctzsi2 \
  		ctzti2 \
  		divdc3 \
  		divdi3 \
  		divmoddi4 \
  		divmodsi4 \
  		divsc3 \
  		divtc3 \
  		divti3 \
  		divtf3 \
  		divxc3 \
  		emutls \
  		enable_execute_stack \
  		eprintf \
  		extendhfsf2 \
  		ffsdi2 \
  		ffssi2 \
  		ffsti2 \
  		fixdfti \
  		fixsfti \
  		fixunsdfsi \
  		fixunsdfti \
  		fixunssfsi \
  		fixunssfti \
  		fixunsxfdi \
  		fixunsxfsi \
  		fixunsxfti \
  		fixxfdi \
  		fixxfti \
  		floattidf \
  		floattisf \
  		floattixf \
  		floatunsidf \
  		floatunsisf \
  		floatuntidf \
  		floatuntisf \
  		floatuntixf \
  		fp_mode \
  		gcc_personality_v0 \
  		int_util \
  		lshrdi3 \
  		lshrti3 \
  		moddi3 \
  		modsi3 \
  		modti3 \
  		muldc3 \
  		muldi3 \
  		mulodi4 \
  		mulosi4 \
  		muloti4 \
  		mulsc3 \
  		multi3 \
  		multf3 \
  		mulvdi3 \
  		mulvsi3 \
  		mulvti3 \
  		mulxc3 \
  		negdf2 \
  		negdi2 \
  		negsf2 \
  		negti2 \
  		negvdi2 \
  		negvsi2 \
  		negvti2 \
  		paritydi2 \
  		paritysi2 \
  		parityti2 \
  		popcountdi2 \
  		popcountsi2 \
  		popcountti2 \
  		powidf2 \
  		powisf2 \
  		powitf2 \
  		powixf2 \
  		subvdi3 \
  		subvsi3 \
  		subvti3 \
  		subtf3 \
  		trampoline_setup \
  		truncdfhf2 \
  		truncsfhf2 \
  		ucmpdi2 \
  		ucmpti2 \
  		udivdi3 \
  		udivmoddi4 \
  		udivmodsi4 \
  		udivmodti4 \
  		udivti3 \
  		umoddi3 \
  		umodsi3 \
  		umodti3
  
  .if ${RTARCH} != "arm"
  GEN_SRCS+=	adddf3 \
  		addsf3 \
  		divdf3 \
  		divsf3 \
  		divsi3 \
  		extendsfdf2 \
  		fixdfdi \
  		fixdfsi \
  		fixsfdi \
  		fixsfsi \
  		fixunsdfdi \
  		fixunssfdi \
  		floatsidf \
  		floatsisf \
  		muldf3 \
  		mulsf3 \
  		subdf3 \
  		subsf3 \
  		truncdfsf2 \
  		udivsi3
  .endif
  
  .if ${RTARCH} == "i386"
  SRCS+=	floatdidf.c \
  	floatdisf.c \
  	floatdixf.c \
  	floatundidf.c \
  	floatundisf.c \
  	floatundixf.c
  .else
  GEN_SRCS+=	floatdidf \
  		floatdisf \
  		floatdixf \
  		floatundidf \
  		floatundisf \
  		floatundixf
  .endif
  
  .for file in ${GEN_SRCS}
  .	if exists(${.CURDIR}/../../llvm/compiler-rt/lib/builtins/${RTARCH}/${file}.S)
  SRCS+=	${file}.S
  .	else
  SRCS+=	${file}.c
  .	endif
  .endfor
  
  .if ${RTARCH} == "aarch64"
  SRCS+=	comparetf2.c \
  	extenddftf2.c \
  	extendsftf2.c \
  	fixtfdi.c \
  	fixtfsi.c \
  	fixtfti.c \
  	fixunstfdi.c \
  	fixunstfsi.c \
  	fixunstfti.c \
  	floatditf.c \
  	floatsitf.c \
  	floattitf.c \
  	floatunditf.c \
  	floatunsitf.c \
  	floatuntitf.c \
  	multc3.c \
  	trunctfdf2.c \
  	trunctfsf2.c
  
  # Prepare multiple versions of the LSE-helper
  CPPFLAGS+=-DHAS_ASM_LSE
  .for pat in cas swp ldadd ldclr ldeor ldset
  .  for size in 1 2 4 8 16
  .    for model in 1 2 3 4
  .      if "${pat}" == "cas" || "${size}" != "16"
  outline_atomic_${pat}${size}_${model}.S: Makefile ${.CURDIR}/../../llvm/compiler-rt/lib/builtins/${RTARCH}/lse.S
  	@echo "#define L_${pat}\n#define SIZE ${size}\n#define MODEL ${model}\n" > $@.tmp
  	@cat ${.CURDIR}/../../llvm/compiler-rt/lib/builtins/${RTARCH}/lse.S >> $@.tmp
  	@mv $@.tmp $@
  
  SRCS+=	outline_atomic_${pat}${size}_${model}.S
  .      endif
  .    endfor
  .  endfor
  .endfor
  
  .endif
  
  .if ${RTARCH} == "arm"
  SRCS+=	aeabi_cdcmp.S \
  	aeabi_cdcmpeq_check_nan.c \
  	aeabi_cfcmp.S \
  	aeabi_cfcmpeq_check_nan.c \
  	aeabi_dcmp.S \
  	aeabi_div0.c \
  	aeabi_drsub.c \
  	aeabi_fcmp.S \
  	aeabi_frsub.c \
  	aeabi_ldivmod.S \
  	aeabi_memcmp.S \
  	aeabi_memcpy.S \
  	aeabi_memmove.S \
  	aeabi_memset.S \
  	aeabi_uldivmod.S \
  	switch16.S \
  	switch32.S \
  	switch8.S \
  	switchu8.S \
  	sync_fetch_and_add_4.S \
  	sync_fetch_and_add_8.S \
  	sync_fetch_and_and_4.S \
  	sync_fetch_and_and_8.S \
  	sync_fetch_and_max_4.S \
  	sync_fetch_and_max_8.S \
  	sync_fetch_and_min_4.S \
  	sync_fetch_and_min_8.S \
  	sync_fetch_and_nand_4.S \
  	sync_fetch_and_nand_8.S \
  	sync_fetch_and_or_4.S \
  	sync_fetch_and_or_8.S \
  	sync_fetch_and_sub_4.S \
  	sync_fetch_and_sub_8.S \
  	sync_fetch_and_umax_4.S \
  	sync_fetch_and_umax_8.S \
  	sync_fetch_and_umin_4.S \
  	sync_fetch_and_umin_8.S \
  	sync_fetch_and_xor_4.S \
  	sync_fetch_and_xor_8.S \
  	sync_synchronize.S
  .endif
  
  .if ${RTARCH} == "mips64" || ${RTARCH} == "mips64el"
  SRCS+=	comparetf2.c \
  	extenddftf2.c \
  	extendsftf2.c \
  	fixtfdi.c \
  	fixtfsi.c \
  	fixtfti.c \
  	fixunstfdi.c \
  	fixunstfsi.c \
  	fixunstfti.c \
  	floatditf.c \
  	floatsitf.c \
  	floattitf.c \
  	floatunditf.c \
  	floatunsitf.c \
  	floatuntitf.c \
  	multc3.c \
  	trunctfdf2.c \
  	trunctfsf2.c
  .endif
  
  .if ${RTARCH} == "ppc"
  # Omit "double-double" functions since long double is the same as
  # double on OpenBSD.
  SRCS+=	atomic_lock_free.c
  .endif
  
  .if ${RTARCH} == "riscv64"
  SRCS+=	comparetf2.c \
  	extenddftf2.c \
  	extendsftf2.c \
  	fixtfdi.c \
  	fixtfsi.c \
  	fixtfti.c \
  	fixunstfdi.c \
  	fixunstfsi.c \
  	fixunstfti.c \
  	floatditf.c \
  	floatsitf.c \
  	floattitf.c \
  	floatunditf.c \
  	floatunsitf.c \
  	floatuntitf.c \
  	multc3.c \
  	trunctfdf2.c \
  	trunctfsf2.c
  .endif
  
  .if ${RTARCH} == "sparc64"
  SRCS+=	comparetf2.c \
  	extenddftf2.c \
  	extendsftf2.c \
  	fixtfdi.c \
  	fixtfsi.c \
  	fixtfti.c \
  	fixunstfdi.c \
  	fixunstfsi.c \
  	fixunstfti.c \
  	floatditf.c \
  	floatsitf.c \
  	floattitf.c \
  	floatunditf.c \
  	floatunsitf.c \
  	floatuntitf.c \
  	multc3.c \
  	trunctfdf2.c \
  	trunctfsf2.c
  .endif
  
  .include <bsd.lib.mk>
  
  .else
  NOPROG=
  .include <bsd.prog.mk>
  .endif