| # These are the functions which clang needs when it is targetting 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 that we |
| # don't have working toolchains for. |
| CheckArches = \ |
| $(shell \ |
| result=""; \ |
| for arch in $(1); do \ |
| if $(CC) -arch $$arch -c \ |
| $(ProjSrcRoot)/make/platform/clang_darwin_test_input.c \ |
| -o /dev/null > /dev/null 2> /dev/null; then \ |
| result="$$result$$arch "; \ |
| fi; \ |
| done; \ |
| echo $$result) |
| |
| ### |
| |
| CC := clang |
| |
| 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) |
| |
| # Configuration for targetting 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 targetting PowerPC. |
| Configs += 10.4 |
| UniversalArchs.10.4 := $(call CheckArches,i386 x86_64) |
| |
| # Configuration for targetting iOS, for some ARMv6 functions, which must be |
| # in the same linkage unit, and for a couple of other functions that didn't |
| # make it into libSystem. |
| Configs += ios |
| UniversalArchs.ios := $(call CheckArches,i386 x86_64 armv6 armv7) |
| |
| # Configuration for targetting OSX. These functions may not be in libSystem |
| # so we should provide our own. |
| Configs += osx |
| UniversalArchs.osx := $(call CheckArches,i386 x86_64) |
| |
| # Configuration for use with kernel/kexts. |
| Configs += cc_kext |
| UniversalArchs.cc_kext := $(call CheckArches,armv6 armv7 i386 x86_64) |
| |
| # If RC_SUPPORTED_ARCHS is defined, treat it as a list of the architectures we |
| # are intended to support and limit what we try to build to that. |
| # |
| # We make sure to remove empty configs if we end up dropping all the requested |
| # archs for a particular config. |
| ifneq ($(RC_SUPPORTED_ARCHS),) |
| $(foreach config,$(Configs),\ |
| $(call Set,UniversalArchs.$(config),\ |
| $(filter $(RC_SUPPORTED_ARCHS),$(UniversalArchs.$(config))))\ |
| $(if $(UniversalArchs.$(config)),,\ |
| $(call Set,Configs,$(filter-out $(config),$(Configs))))) |
| endif |
| |
| ### |
| |
| # 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 := -miphoneos-version-min=1.0 |
| IOSSIM_DEPLOYMENT_ARGS := -miphoneos-version-min=1.0 |
| |
| # If an explicit ARM_SDK build variable is set, use that as the isysroot. |
| ifneq ($(ARM_SDK),) |
| IOS_DEPLOYMENT_ARGS += -isysroot $(ARM_SDK) |
| IOSSIM_DEPLOYMENT_ARGS += -isysroot $(ARM_SDK) |
| endif |
| |
| CFLAGS.eprintf := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS) |
| CFLAGS.10.4 := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS) |
| CFLAGS.ios.i386 := $(CFLAGS) $(IOSSIM_DEPLOYMENT_ARGS) |
| CFLAGS.ios.x86_64 := $(CFLAGS) $(IOSSIM_DEPLOYMENT_ARGS) |
| CFLAGS.ios.armv6 := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS) |
| CFLAGS.ios.armv7 := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS) |
| CFLAGS.osx.i386 := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS) |
| CFLAGS.osx.x86_64 := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS) |
| CFLAGS.cc_kext.i386 := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS) |
| CFLAGS.cc_kext.x86_64 := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS) |
| CFLAGS.cc_kext.armv6 := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS) -mthumb |
| CFLAGS.cc_kext.armv7 := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS) |
| |
| FUNCTIONS.eprintf := eprintf |
| FUNCTIONS.10.4 := eprintf floatundidf floatundisf floatundixf |
| |
| FUNCTIONS.ios := divmodsi4 udivmodsi4 mulosi4 mulodi4 muloti4 |
| # On x86, the divmod functions reference divsi. |
| FUNCTIONS.ios.i386 := $(FUNCTIONS.ios) \ |
| divsi3 udivsi3 |
| FUNCTIONS.ios.x86_64 := $(FUNCTIONS.ios) \ |
| divsi3 udivsi3 |
| FUNCTIONS.ios.armv6 := $(FUNCTIONS.ios) \ |
| sync_synchronize \ |
| switch16 switch32 switch8 switchu8 \ |
| save_vfp_d8_d15_regs restore_vfp_d8_d15_regs |
| |
| FUNCTIONS.osx := mulosi4 mulodi4 muloti4 |
| |
| CCKEXT_COMMON_FUNCTIONS := \ |
| absvdi2 \ |
| absvsi2 \ |
| addvdi3 \ |
| addvsi3 \ |
| ashldi3 \ |
| ashrdi3 \ |
| bswapdi2 \ |
| bswapsi2 \ |
| clzdi2 \ |
| clzsi2 \ |
| cmpdi2 \ |
| ctzdi2 \ |
| ctzsi2 \ |
| divdc3 \ |
| divdi3 \ |
| divsc3 \ |
| divmodsi4 \ |
| udivmodsi4 \ |
| do_global_dtors \ |
| eprintf \ |
| 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 \ |
| 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 \ |
| 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 |
| |
| FUNCTIONS.cc_kext.armv6 := $(CCKEXT_ARMVFP_FUNCTIONS) |
| FUNCTIONS.cc_kext.armv7 := $(CCKEXT_ARMVFP_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 |
| |
| # 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.armv6 := \ |
| $(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext.armv6)) |
| FUNCTIONS.cc_kext.armv7 := \ |
| $(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext.armv7)) |
| 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)) |
| |
| KERNEL_USE.cc_kext := 1 |
| |
| VISIBILITY_HIDDEN := 1 |