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llvm-project/compiler-rt/make/platform/clang_darwin.mk

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Makefile
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# These are the functions which clang needs when it is targeting a previous
# version of the OS. The issue is that the backend may use functions which were
# not present in the libgcc that shipped on the platform. In such cases, we link
# with a version of the library which contains private_extern definitions of all
# the extra functions which might be referenced.
Description := Static runtime libraries for clang/Darwin.
# A function that ensures we don't try to build for architectures and SDKs
# that we don't have working toolchains for. Arguments:
# (1): List of architectures
# (2): Library name
# (3): SDK path
# The result is a possibly empty subset of the architectures from argument 1.
CheckArches = \
$(shell \
result=""; \
if [ "X$(3)" != X ]; then \
for arch in $(1); do \
if $(LD) -v 2>&1 | grep "configured to support" \
| tr ' ' '\n' | grep "^$$arch$$" >/dev/null 2>/dev/null; then \
if $(CC) -arch $$arch \
-integrated-as \
$(ProjSrcRoot)/make/platform/clang_darwin_test_input.c \
-isysroot $(3) \
-o /dev/null > /dev/null 2> /dev/null; then \
result="$$result$$arch "; \
else \
printf 1>&2 \
"warning: clang_darwin.mk: dropping arch '$$arch' from lib '$(2)'"; \
printf 1>&2 " (clang or system libraries do not support it)\n"; \
fi; \
else \
printf 1>&2 \
"warning: clang_darwin.mk: dropping arch '$$arch' from lib '$(2)'";\
printf 1>&2 " (ld does not support it)\n"; \
fi; \
done; \
fi; \
echo $$result)
XCRun = \
$(shell \
result=`xcrun -find $(1) 2> /dev/null`; \
if [ "$$?" != "0" ]; then result=$(1); fi; \
echo $$result)
# Prefer building with the internal SDKs.
XCRunSdkPath = \
$(shell \
result=`xcrun --sdk $(1).internal --show-sdk-path 2> /dev/null`; \
if [ "$$?" != "0" ]; then \
result=`xcrun --sdk $(1) --show-sdk-path 2> /dev/null`; \
if [ "$$?" != "0" ]; then result=""; fi; \
fi; \
echo $$result)
###
CC := $(call XCRun,clang)
LD := $(shell $(CC) -print-prog-name=ld)
AR := $(call XCRun,ar)
RANLIB := $(call XCRun,ranlib)
STRIP := $(call XCRun,strip)
LIPO := $(call XCRun,lipo)
DSYMUTIL := $(call XCRun,dsymutil)
OSX_SDK := $(call XCRunSdkPath,macosx)
IOS_SDK := $(call XCRunSdkPath,iphoneos)
IOSSIM_SDK := $(call XCRunSdkPath,iphonesimulator)
Configs :=
UniversalArchs :=
# Configuration solely for providing access to an eprintf symbol, which may
# still be referenced from Darwin system headers. This symbol is only ever
# needed on i386.
Configs += eprintf
UniversalArchs.eprintf := $(call CheckArches,i386,eprintf,$(OSX_SDK))
# Configuration for targeting 10.4. We need a few functions missing from
# libgcc_s.10.4.dylib. We only build x86 slices since clang doesn't really
# support targeting PowerPC.
Configs += 10.4
UniversalArchs.10.4 := $(call CheckArches,i386 x86_64,10.4,$(OSX_SDK))
# Configuration for targeting iOS for a couple of functions that didn't
# make it into libSystem.
Configs += ios
UniversalArchs.ios := $(call CheckArches,i386 x86_64,ios,$(IOSSIM_SDK))
UniversalArchs.ios += $(call CheckArches,armv7 arm64,ios,$(IOS_SDK))
# Configuration for targeting OSX. These functions may not be in libSystem
# so we should provide our own.
Configs += osx
UniversalArchs.osx := $(call CheckArches,i386 x86_64 x86_64h,osx,$(OSX_SDK))
# Configuration for use with kernel/kexts.
Configs += cc_kext
UniversalArchs.cc_kext := $(call CheckArches,i386 x86_64 x86_64h,cc_kext,$(OSX_SDK))
# Configuration for use with iOS kernel/kexts
Configs += cc_kext_ios
UniversalArchs.cc_kext_ios += $(call CheckArches,armv7,cc_kext_ios,$(IOS_SDK))
# Darwin 10.6 has a bug in cctools that makes it unable to use ranlib on our ARM
# object files. If we are on that platform, strip out all ARM archs. We still
# build the libraries themselves so that Clang can find them where it expects
# them, even though they might not have an expected slice.
ifneq ($(shell test -x /usr/bin/sw_vers && sw_vers -productVersion | grep 10.6),)
UniversalArchs.ios := $(filter-out armv7, $(UniversalArchs.ios))
UniversalArchs.cc_kext_ios := $(filter-out armv7, $(UniversalArchs.cc_kext_ios))
endif
# If RC_SUPPORTED_ARCHS is defined, treat it as a list of the architectures we
# are intended to support and limit what we try to build to that.
ifneq ($(RC_SUPPORTED_ARCHS),)
$(foreach config,$(Configs),\
$(call Set,UniversalArchs.$(config),\
$(filter $(RC_SUPPORTED_ARCHS),$(UniversalArchs.$(config)))))
endif
# Remove empty configs if we end up dropping all the requested
# archs for a particular config.
$(foreach config,$(Configs),\
$(if $(strip $(UniversalArchs.$(config))),,\
$(call Set,Configs,$(filter-out $(config),$(Configs)))))
###
# Forcibly strip off any -arch, as that totally breaks our universal support.
override CC := $(subst -arch ,-arch_,$(CC))
override CC := $(patsubst -arch_%,,$(CC))
CFLAGS := -Wall -Werror -O3 -fomit-frame-pointer
# Always set deployment target arguments for every build, these libraries should
# never depend on the environmental overrides. We simply set them to minimum
# supported deployment target -- nothing in the compiler-rt libraries should
# actually depend on the deployment target.
OSX_DEPLOYMENT_ARGS := -mmacosx-version-min=10.4
IOS_DEPLOYMENT_ARGS := -mios-version-min=1.0
IOS6_DEPLOYMENT_ARGS := -mios-version-min=6.0
IOSSIM_DEPLOYMENT_ARGS := -mios-simulator-version-min=1.0
OSX_DEPLOYMENT_ARGS += -isysroot $(OSX_SDK)
IOS_DEPLOYMENT_ARGS += -isysroot $(IOS_SDK)
IOS6_DEPLOYMENT_ARGS += -isysroot $(IOS_SDK)
IOSSIM_DEPLOYMENT_ARGS += -isysroot $(IOSSIM_SDK)
CFLAGS.eprintf := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
CFLAGS.10.4 := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
SANITIZER_MACOSX_DEPLOYMENT_ARGS := -mmacosx-version-min=10.7
SANITIZER_IOSSIM_DEPLOYMENT_ARGS := -mios-simulator-version-min=7.0 \
-isysroot $(IOSSIM_SDK)
SANITIZER_CFLAGS := -fno-builtin -gline-tables-only -stdlib=libc++
CFLAGS.ios.i386 := $(CFLAGS) $(IOSSIM_DEPLOYMENT_ARGS)
CFLAGS.ios.x86_64 := $(CFLAGS) $(IOSSIM_DEPLOYMENT_ARGS)
CFLAGS.ios.armv7 := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
CFLAGS.ios.armv7k := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
CFLAGS.ios.armv7s := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
CFLAGS.ios.arm64 := $(CFLAGS) $(IOS6_DEPLOYMENT_ARGS)
CFLAGS.osx.i386 := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
CFLAGS.osx.x86_64 := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
CFLAGS.osx.x86_64h := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
CFLAGS.cc_kext.i386 := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
CFLAGS.cc_kext.x86_64 := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
CFLAGS.cc_kext.x86_64h := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
CFLAGS.cc_kext_ios.armv7 := $(CFLAGS) $(IOS6_DEPLOYMENT_ARGS)
CFLAGS.cc_kext_ios.armv7k := $(CFLAGS) $(IOS6_DEPLOYMENT_ARGS)
CFLAGS.cc_kext_ios.armv7s := $(CFLAGS) $(IOS6_DEPLOYMENT_ARGS)
CFLAGS.cc_kext_ios.arm64 := $(CFLAGS) $(IOS6_DEPLOYMENT_ARGS)
SANITIZER_LDFLAGS := -stdlib=libc++ -lc++ -lc++abi
ATOMIC_FUNCTIONS := \
atomic_flag_clear \
atomic_flag_clear_explicit \
atomic_flag_test_and_set \
atomic_flag_test_and_set_explicit \
atomic_signal_fence \
atomic_thread_fence
FP16_FUNCTIONS := \
extendhfsf2 \
truncdfhf2 \
truncsfhf2
FUNCTIONS.eprintf := eprintf
FUNCTIONS.10.4 := eprintf floatundidf floatundisf floatundixf
FUNCTIONS.ios := divmodsi4 udivmodsi4 mulosi4 mulodi4 muloti4 \
$(ATOMIC_FUNCTIONS) $(FP16_FUNCTIONS)
# On x86, the divmod functions reference divsi.
FUNCTIONS.ios.i386 := $(FUNCTIONS.ios) \
divsi3 udivsi3
FUNCTIONS.ios.x86_64 := $(FUNCTIONS.ios.i386)
FUNCTIONS.ios.arm64 := mulsc3 muldc3 divsc3 divdc3 udivti3 umodti3 \
$(ATOMIC_FUNCTIONS)
FUNCTIONS.osx := mulosi4 mulodi4 muloti4 $(ATOMIC_FUNCTIONS) $(FP16_FUNCTIONS)
CCKEXT_PROFILE_FUNCTIONS := \
InstrProfiling \
InstrProfilingBuffer \
InstrProfilingPlatformDarwin
CCKEXT_COMMON_FUNCTIONS := \
$(CCKEXT_PROFILE_FUNCTIONS) \
absvdi2 \
absvsi2 \
addvdi3 \
addvsi3 \
ashldi3 \
ashrdi3 \
bswapdi2 \
bswapsi2 \
clzdi2 \
clzsi2 \
cmpdi2 \
ctzdi2 \
ctzsi2 \
divdc3 \
divdi3 \
divsc3 \
divmodsi4 \
udivmodsi4 \
do_global_dtors \
eprintf \
extendhfsf2 \
ffsdi2 \
fixdfdi \
fixsfdi \
fixunsdfdi \
fixunsdfsi \
fixunssfdi \
fixunssfsi \
floatdidf \
floatdisf \
floatundidf \
floatundisf \
gcc_bcmp \
lshrdi3 \
moddi3 \
muldc3 \
muldi3 \
mulsc3 \
mulvdi3 \
mulvsi3 \
negdi2 \
negvdi2 \
negvsi2 \
paritydi2 \
paritysi2 \
popcountdi2 \
popcountsi2 \
powidf2 \
powisf2 \
subvdi3 \
subvsi3 \
truncdfhf2 \
truncsfhf2 \
ucmpdi2 \
udiv_w_sdiv \
udivdi3 \
udivmoddi4 \
umoddi3
CCKEXT_ARM_FUNCTIONS := $(CCKEXT_COMMON_FUNCTIONS) \
adddf3 \
addsf3 \
aeabi_cdcmpeq \
aeabi_cdrcmple \
aeabi_cfcmpeq \
aeabi_cfrcmple \
aeabi_dcmpeq \
aeabi_dcmpge \
aeabi_dcmpgt \
aeabi_dcmple \
aeabi_dcmplt \
aeabi_drsub \
aeabi_fcmpeq \
aeabi_fcmpge \
aeabi_fcmpgt \
aeabi_fcmple \
aeabi_fcmplt \
aeabi_frsub \
aeabi_idivmod \
aeabi_uidivmod \
cmpdf2 \
cmpsf2 \
div0 \
divdf3 \
divsf3 \
divsi3 \
extendsfdf2 \
ffssi2 \
fixdfsi \
fixsfsi \
floatsidf \
floatsisf \
floatunsidf \
floatunsisf \
comparedf2 \
comparesf2 \
modsi3 \
muldf3 \
mulsf3 \
mulodi4 \
negdf2 \
negsf2 \
subdf3 \
subsf3 \
switch16 \
switch32 \
switch8 \
switchu8 \
truncdfsf2 \
udivsi3 \
umodsi3 \
unorddf2 \
unordsf2
CCKEXT_ARMVFP_FUNCTIONS := $(CCKEXT_ARM_FUNCTIONS) \
adddf3vfp \
addsf3vfp \
divdf3vfp \
divsf3vfp \
eqdf2vfp \
eqsf2vfp \
extendsfdf2vfp \
fixdfsivfp \
fixsfsivfp \
fixunsdfsivfp \
fixunssfsivfp \
floatsidfvfp \
floatsisfvfp \
floatunssidfvfp \
floatunssisfvfp \
gedf2vfp \
gesf2vfp \
gtdf2vfp \
gtsf2vfp \
ledf2vfp \
lesf2vfp \
ltdf2vfp \
ltsf2vfp \
muldf3vfp \
mulsf3vfp \
nedf2vfp \
nesf2vfp \
subdf3vfp \
subsf3vfp \
truncdfsf2vfp \
unorddf2vfp \
unordsf2vfp
CCKEXT_ARM64_FUNCTIONS := \
$(CCKEXT_PROFILE_FUNCTIONS) \
divdc3 \
divsc3 \
muldc3 \
mulsc3 \
udivti3 \
umodti3
FUNCTIONS.cc_kext_ios.armv7 := $(CCKEXT_ARMVFP_FUNCTIONS)
FUNCTIONS.cc_kext_ios.armv7k := $(CCKEXT_ARMVFP_FUNCTIONS)
FUNCTIONS.cc_kext_ios.armv7s := $(CCKEXT_ARMVFP_FUNCTIONS)
FUNCTIONS.cc_kext_ios.arm64 := $(CCKEXT_ARM64_FUNCTIONS)
CCKEXT_X86_FUNCTIONS := $(CCKEXT_COMMON_FUNCTIONS) \
divxc3 \
fixunsxfdi \
fixunsxfsi \
fixxfdi \
floatdixf \
floatundixf \
mulxc3 \
powixf2
FUNCTIONS.cc_kext.i386 := $(CCKEXT_X86_FUNCTIONS) \
ffssi2 \
i686.get_pc_thunk.eax \
i686.get_pc_thunk.ebp \
i686.get_pc_thunk.ebx \
i686.get_pc_thunk.ecx \
i686.get_pc_thunk.edi \
i686.get_pc_thunk.edx \
i686.get_pc_thunk.esi
FUNCTIONS.cc_kext.x86_64 := $(CCKEXT_X86_FUNCTIONS) \
absvti2 \
addvti3 \
ashlti3 \
ashrti3 \
clzti2 \
cmpti2 \
ctzti2 \
divti3 \
ffsti2 \
fixdfti \
fixsfti \
fixunsdfti \
fixunssfti \
fixunsxfti \
fixxfti \
floattidf \
floattisf \
floattixf \
floatuntidf \
floatuntisf \
floatuntixf \
lshrti3 \
modti3 \
multi3 \
mulvti3 \
negti2 \
negvti2 \
parityti2 \
popcountti2 \
subvti3 \
ucmpti2 \
udivmodti4 \
udivti3 \
umodti3
FUNCTIONS.cc_kext.x86_64h := $(FUNCTIONS.cc_kext.x86_64)
# FIXME: Currently, compiler-rt is missing implementations for a number of the
# functions that need to go into libcc_kext.a. Filter them out for now.
CCKEXT_MISSING_FUNCTIONS := \
cmpdf2 cmpsf2 div0 \
ffssi2 \
udiv_w_sdiv unorddf2 unordsf2 bswapdi2 \
bswapsi2 \
gcc_bcmp \
do_global_dtors \
i686.get_pc_thunk.eax i686.get_pc_thunk.ebp i686.get_pc_thunk.ebx \
i686.get_pc_thunk.ecx i686.get_pc_thunk.edi i686.get_pc_thunk.edx \
i686.get_pc_thunk.esi \
aeabi_cdcmpeq aeabi_cdrcmple aeabi_cfcmpeq aeabi_cfrcmple aeabi_dcmpeq \
aeabi_dcmpge aeabi_dcmpgt aeabi_dcmple aeabi_dcmplt aeabi_drsub aeabi_fcmpeq \
aeabi_fcmpge aeabi_fcmpgt aeabi_fcmple aeabi_fcmplt aeabi_frsub aeabi_idivmod \
aeabi_uidivmod
FUNCTIONS.cc_kext_ios.armv7 := \
$(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext_ios.armv7))
FUNCTIONS.cc_kext_ios.armv7k := \
$(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext_ios.armv7k))
FUNCTIONS.cc_kext_ios.armv7s := \
$(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext_ios.armv7s))
FUNCTIONS.cc_kext_ios.arm64 := \
$(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext_ios.arm64))
FUNCTIONS.cc_kext.i386 := \
$(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext.i386))
FUNCTIONS.cc_kext.x86_64 := \
$(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext.x86_64))
FUNCTIONS.cc_kext.x86_64h := \
$(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext.x86_64h))
KERNEL_USE.cc_kext := 1
KERNEL_USE.cc_kext_ios := 1
VISIBILITY_HIDDEN := 1
SHARED_LIBRARY_SUFFIX := dylib
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