make/platform/clang_darwin.mk

   1 # These are the functions which clang needs when it is targetting a previous
   2 # version of the OS. The issue is that the backend may use functions which were
   3 # not present in the libgcc that shipped on the platform. In such cases, we link
   4 # with a version of the library which contains private_extern definitions of all
   5 # the extra functions which might be referenced.
   6
   7 Description := Static runtime libraries for clang/Darwin.
   8
   9 # A function that ensures we don't try to build for architectures that we
  10 # don't have working toolchains for.
  11 CheckArches = \
  12   $(shell \
  13     result=""; \
  14     for arch in $(1); do \
  15       if $(CC) -arch $$arch -c \
  16           -integrated-as \
  17           $(ProjSrcRoot)/make/platform/clang_darwin_test_input.c \
  18           -isysroot $(ProjSrcRoot)/SDKs/darwin \
  19           -o /dev/null > /dev/null 2> /dev/null; then \
  20         result="$$result$$arch "; \
  21       else \
  22         printf 1>&2 \
  23           "warning: clang_darwin.mk: dropping arch '$$arch' from lib '$(2)'\n"; \
  24       fi; \
  25     done; \
  26     echo $$result)
  27
  28 ###
  29
  30 CC := clang
  31
  32 Configs :=
  33 UniversalArchs :=
  34
  35 # Configuration solely for providing access to an eprintf symbol, which may
  36 # still be referenced from Darwin system headers. This symbol is only ever
  37 # needed on i386.
  38 Configs += eprintf
  39 UniversalArchs.eprintf := $(call CheckArches,i386,eprintf)
  40
  41 # Configuration for targetting 10.4. We need a few functions missing from
  42 # libgcc_s.10.4.dylib. We only build x86 slices since clang doesn't really
  43 # support targetting PowerPC.
  44 Configs += 10.4
  45 UniversalArchs.10.4 := $(call CheckArches,i386 x86_64,10.4)
  46
  47 # Configuration for targetting iOS for a couple of functions that didn't
  48 # make it into libSystem.
  49 Configs += ios
  50 UniversalArchs.ios := $(call CheckArches,i386 x86_64 armv7,ios)
  51
  52 # Configuration for targetting OSX. These functions may not be in libSystem
  53 # so we should provide our own.
  54 Configs += osx
  55 UniversalArchs.osx := $(call CheckArches,i386 x86_64,osx)
  56
  57 # Configuration for use with kernel/kexts.
  58 Configs += cc_kext
  59 UniversalArchs.cc_kext := $(call CheckArches,armv7 i386 x86_64,cc_kext)
  60
  61 # Configuration for use with kernel/kexts for iOS 5.0 and earlier (which used
  62 # a different code generation strategy).
  63 Configs += cc_kext_ios5
  64 UniversalArchs.cc_kext_ios5 := $(call CheckArches,x86_64 armv7,cc_kext_ios5)
  65
  66 # Configurations which define the profiling support functions.
  67 Configs += profile_osx
  68 UniversalArchs.profile_osx := $(call CheckArches,i386 x86_64,profile_osx)
  69 Configs += profile_ios
  70 UniversalArchs.profile_ios := $(call CheckArches,i386 x86_64 armv7,profile_ios)
  71
  72 # Configurations which define the ASAN support functions.
  73 Configs += asan_osx
  74 UniversalArchs.asan_osx := $(call CheckArches,i386 x86_64,asan_osx)
  75
  76 Configs += asan_osx_dynamic
  77 UniversalArchs.asan_osx_dynamic := $(call CheckArches,i386 x86_64,asan_osx_dynamic)
  78
  79 Configs += ubsan_osx
  80 UniversalArchs.ubsan_osx := $(call CheckArches,i386 x86_64,ubsan_osx)
  81
  82 # Darwin 10.6 has a bug in cctools that makes it unable to use ranlib on our ARM
  83 # object files. If we are on that platform, strip out all ARM archs. We still
  84 # build the libraries themselves so that Clang can find them where it expects
  85 # them, even though they might not have an expected slice.
  86 ifneq ($(shell which sw_vers),)
  87 ifneq ($(shell sw_vers -productVersion | grep 10.6),)
  88 UniversalArchs.ios := $(filter-out armv7, $(UniversalArchs.ios))
  89 UniversalArchs.cc_kext := $(filter-out armv7, $(UniversalArchs.cc_kext))
  90 UniversalArchs.cc_kext_ios5 := $(filter-out armv7, $(UniversalArchs.cc_kext_ios5))
  91 UniversalArchs.profile_ios := $(filter-out armv7, $(UniversalArchs.profile_ios))
  92 endif
  93 endif
  94
  95 # If RC_SUPPORTED_ARCHS is defined, treat it as a list of the architectures we
  96 # are intended to support and limit what we try to build to that.
  97 #
  98 # We make sure to remove empty configs if we end up dropping all the requested
  99 # archs for a particular config.
 100 ifneq ($(RC_SUPPORTED_ARCHS),)
 101 $(foreach config,$(Configs),\
 102   $(call Set,UniversalArchs.$(config),\
 103         $(filter $(RC_SUPPORTED_ARCHS),$(UniversalArchs.$(config))))\
 104   $(if $(UniversalArchs.$(config)),,\
 105         $(call Set,Configs,$(filter-out $(config),$(Configs)))))
 106 endif
 107
 108 ###
 109
 110 # Forcibly strip off any -arch, as that totally breaks our universal support.
 111 override CC := $(subst -arch ,-arch_,$(CC))
 112 override CC := $(patsubst -arch_%,,$(CC))
 113
 114 CFLAGS := -Wall -Werror -O3 -fomit-frame-pointer
 115
 116 # Always set deployment target arguments for every build, these libraries should
 117 # never depend on the environmental overrides. We simply set them to minimum
 118 # supported deployment target -- nothing in the compiler-rt libraries should
 119 # actually depend on the deployment target.
 120 OSX_DEPLOYMENT_ARGS := -mmacosx-version-min=10.4
 121 IOS_DEPLOYMENT_ARGS := -miphoneos-version-min=1.0
 122 IOS6_DEPLOYMENT_ARGS := -miphoneos-version-min=6.0
 123 IOSSIM_DEPLOYMENT_ARGS := -miphoneos-version-min=1.0
 124
 125 # Use our stub SDK as the sysroot to support more portable building.
 126 OSX_DEPLOYMENT_ARGS += -isysroot $(ProjSrcRoot)/SDKs/darwin
 127 IOS_DEPLOYMENT_ARGS += -isysroot $(ProjSrcRoot)/SDKs/darwin
 128 IOS6_DEPLOYMENT_ARGS += -isysroot $(ProjSrcRoot)/SDKs/darwin
 129 IOSSIM_DEPLOYMENT_ARGS += -isysroot $(ProjSrcRoot)/SDKs/darwin
 130
 131 CFLAGS.eprintf          := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
 132 CFLAGS.10.4             := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
 133 # FIXME: We can't build ASAN with our stub SDK yet.
 134 CFLAGS.asan_osx         := $(CFLAGS) -mmacosx-version-min=10.5 -fno-builtin \
 135                            -DASAN_FLEXIBLE_MAPPING_AND_OFFSET=1
 136 CFLAGS.asan_osx_dynamic := \
 137         $(CFLAGS) -mmacosx-version-min=10.5 -fno-builtin \
 138         -DMAC_INTERPOSE_FUNCTIONS=1 \
 139   -DASAN_FLEXIBLE_MAPPING_AND_OFFSET=1
 140
 141 CFLAGS.ubsan_osx        := $(CFLAGS) -mmacosx-version-min=10.5 -fno-builtin
 142
 143 CFLAGS.ios.i386         := $(CFLAGS) $(IOSSIM_DEPLOYMENT_ARGS)
 144 CFLAGS.ios.x86_64       := $(CFLAGS) $(IOSSIM_DEPLOYMENT_ARGS)
 145 CFLAGS.ios.armv7        := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
 146 CFLAGS.ios.armv7f       := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
 147 CFLAGS.ios.armv7k       := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
 148 CFLAGS.ios.armv7s       := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
 149 CFLAGS.osx.i386         := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
 150 CFLAGS.osx.x86_64       := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
 151 CFLAGS.cc_kext.i386     := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
 152 CFLAGS.cc_kext.x86_64   := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
 153 CFLAGS.cc_kext.armv7    := $(CFLAGS) $(IOS6_DEPLOYMENT_ARGS)
 154 CFLAGS.cc_kext.armv7f   := $(CFLAGS) $(IOS6_DEPLOYMENT_ARGS)
 155 CFLAGS.cc_kext.armv7k   := $(CFLAGS) $(IOS6_DEPLOYMENT_ARGS)
 156 CFLAGS.cc_kext.armv7s   := $(CFLAGS) $(IOS6_DEPLOYMENT_ARGS)
 157 CFLAGS.cc_kext_ios5.armv7  := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
 158 CFLAGS.cc_kext_ios5.armv7f := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
 159 CFLAGS.cc_kext_ios5.armv7k := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
 160 CFLAGS.cc_kext_ios5.armv7s := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
 161 CFLAGS.profile_osx.i386   := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
 162 CFLAGS.profile_osx.x86_64 := $(CFLAGS) $(OSX_DEPLOYMENT_ARGS)
 163 CFLAGS.profile_ios.i386   := $(CFLAGS) $(IOSSIM_DEPLOYMENT_ARGS)
 164 CFLAGS.profile_ios.x86_64 := $(CFLAGS) $(IOSSIM_DEPLOYMENT_ARGS)
 165 CFLAGS.profile_ios.armv7  := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
 166 CFLAGS.profile_ios.armv7f := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
 167 CFLAGS.profile_ios.armv7k := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
 168 CFLAGS.profile_ios.armv7s := $(CFLAGS) $(IOS_DEPLOYMENT_ARGS)
 169
 170 # Configure the asan_osx_dynamic library to be built shared.
 171 SHARED_LIBRARY.asan_osx_dynamic := 1
 172 LDFLAGS.asan_osx_dynamic := -framework Foundation -lstdc++ -undefined dynamic_lookup
 173
 174 FUNCTIONS.eprintf := eprintf
 175 FUNCTIONS.10.4 := eprintf floatundidf floatundisf floatundixf
 176
 177 FUNCTIONS.ios       := divmodsi4 udivmodsi4 mulosi4 mulodi4 muloti4
 178 # On x86, the divmod functions reference divsi.
 179 FUNCTIONS.ios.i386   := $(FUNCTIONS.ios) \
 180                         divsi3 udivsi3
 181 FUNCTIONS.ios.x86_64 := $(FUNCTIONS.ios) \
 182                         divsi3 udivsi3
 183
 184 FUNCTIONS.osx   := mulosi4 mulodi4 muloti4
 185
 186 FUNCTIONS.profile_osx := GCDAProfiling
 187 FUNCTIONS.profile_ios := GCDAProfiling
 188
 189 FUNCTIONS.asan_osx := $(AsanFunctions) $(InterceptionFunctions) \
 190                                        $(SanitizerCommonFunctions)
 191 FUNCTIONS.asan_osx_dynamic := $(AsanFunctions) $(InterceptionFunctions) \
 192                               $(SanitizerCommonFunctions) \
 193                               $(AsanDynamicFunctions)
 194
 195 FUNCTIONS.ubsan_osx := $(UbsanFunctions) $(SanitizerCommonFunctions)
 196
 197 CCKEXT_COMMON_FUNCTIONS := \
 198         absvdi2 \
 199         absvsi2 \
 200         addvdi3 \
 201         addvsi3 \
 202         ashldi3 \
 203         ashrdi3 \
 204         bswapdi2 \
 205         bswapsi2 \
 206         clzdi2 \
 207         clzsi2 \
 208         cmpdi2 \
 209         ctzdi2 \
 210         ctzsi2 \
 211         divdc3 \
 212         divdi3 \
 213         divsc3 \
 214         divmodsi4 \
 215         udivmodsi4 \
 216         do_global_dtors \
 217         eprintf \
 218         ffsdi2 \
 219         fixdfdi \
 220         fixsfdi \
 221         fixunsdfdi \
 222         fixunsdfsi \
 223         fixunssfdi \
 224         fixunssfsi \
 225         floatdidf \
 226         floatdisf \
 227         floatundidf \
 228         floatundisf \
 229         gcc_bcmp \
 230         lshrdi3 \
 231         moddi3 \
 232         muldc3 \
 233         muldi3 \
 234         mulsc3 \
 235         mulvdi3 \
 236         mulvsi3 \
 237         negdi2 \
 238         negvdi2 \
 239         negvsi2 \
 240         paritydi2 \
 241         paritysi2 \
 242         popcountdi2 \
 243         popcountsi2 \
 244         powidf2 \
 245         powisf2 \
 246         subvdi3 \
 247         subvsi3 \
 248         ucmpdi2 \
 249         udiv_w_sdiv \
 250         udivdi3 \
 251         udivmoddi4 \
 252         umoddi3
 253
 254 CCKEXT_ARM_FUNCTIONS := $(CCKEXT_COMMON_FUNCTIONS) \
 255         adddf3 \
 256         addsf3 \
 257         aeabi_cdcmpeq \
 258         aeabi_cdrcmple \
 259         aeabi_cfcmpeq \
 260         aeabi_cfrcmple \
 261         aeabi_dcmpeq \
 262         aeabi_dcmpge \
 263         aeabi_dcmpgt \
 264         aeabi_dcmple \
 265         aeabi_dcmplt \
 266         aeabi_drsub \
 267         aeabi_fcmpeq \
 268         aeabi_fcmpge \
 269         aeabi_fcmpgt \
 270         aeabi_fcmple \
 271         aeabi_fcmplt \
 272         aeabi_frsub \
 273         aeabi_idivmod \
 274         aeabi_uidivmod \
 275         cmpdf2 \
 276         cmpsf2 \
 277         div0 \
 278         divdf3 \
 279         divsf3 \
 280         divsi3 \
 281         extendsfdf2 \
 282         ffssi2 \
 283         fixdfsi \
 284         fixsfsi \
 285         floatsidf \
 286         floatsisf \
 287         floatunsidf \
 288         floatunsisf \
 289         comparedf2 \
 290         comparesf2 \
 291         modsi3 \
 292         muldf3 \
 293         mulsf3 \
 294         negdf2 \
 295         negsf2 \
 296         subdf3 \
 297         subsf3 \
 298         switch16 \
 299         switch32 \
 300         switch8 \
 301         switchu8 \
 302         truncdfsf2 \
 303         udivsi3 \
 304         umodsi3 \
 305         unorddf2 \
 306         unordsf2
 307
 308 CCKEXT_ARMVFP_FUNCTIONS := $(CCKEXT_ARM_FUNCTIONS) \
 309         adddf3vfp \
 310         addsf3vfp \
 311         divdf3vfp \
 312         divsf3vfp \
 313         eqdf2vfp \
 314         eqsf2vfp \
 315         extendsfdf2vfp \
 316         fixdfsivfp \
 317         fixsfsivfp \
 318         fixunsdfsivfp \
 319         fixunssfsivfp \
 320         floatsidfvfp \
 321         floatsisfvfp \
 322         floatunssidfvfp \
 323         floatunssisfvfp \
 324         gedf2vfp \
 325         gesf2vfp \
 326         gtdf2vfp \
 327         gtsf2vfp \
 328         ledf2vfp \
 329         lesf2vfp \
 330         ltdf2vfp \
 331         ltsf2vfp \
 332         muldf3vfp \
 333         mulsf3vfp \
 334         nedf2vfp \
 335         nesf2vfp \
 336         subdf3vfp \
 337         subsf3vfp \
 338         truncdfsf2vfp \
 339         unorddf2vfp \
 340         unordsf2vfp
 341
 342 FUNCTIONS.cc_kext.armv7 := $(CCKEXT_ARMVFP_FUNCTIONS)
 343 FUNCTIONS.cc_kext.armv7f := $(CCKEXT_ARMVFP_FUNCTIONS)
 344 FUNCTIONS.cc_kext.armv7k := $(CCKEXT_ARMVFP_FUNCTIONS)
 345 FUNCTIONS.cc_kext.armv7s := $(CCKEXT_ARMVFP_FUNCTIONS)
 346 FUNCTIONS.cc_kext_ios5.armv7 := $(CCKEXT_ARMVFP_FUNCTIONS)
 347 FUNCTIONS.cc_kext_ios5.armv7f := $(CCKEXT_ARMVFP_FUNCTIONS)
 348 FUNCTIONS.cc_kext_ios5.armv7k := $(CCKEXT_ARMVFP_FUNCTIONS)
 349 FUNCTIONS.cc_kext_ios5.armv7s := $(CCKEXT_ARMVFP_FUNCTIONS)
 350
 351 CCKEXT_X86_FUNCTIONS := $(CCKEXT_COMMON_FUNCTIONS) \
 352         divxc3 \
 353         fixunsxfdi \
 354         fixunsxfsi \
 355         fixxfdi \
 356         floatdixf \
 357         floatundixf \
 358         mulxc3 \
 359         powixf2
 360
 361 FUNCTIONS.cc_kext.i386 := $(CCKEXT_X86_FUNCTIONS) \
 362         ffssi2 \
 363         i686.get_pc_thunk.eax \
 364         i686.get_pc_thunk.ebp \
 365         i686.get_pc_thunk.ebx \
 366         i686.get_pc_thunk.ecx \
 367         i686.get_pc_thunk.edi \
 368         i686.get_pc_thunk.edx \
 369         i686.get_pc_thunk.esi
 370
 371 FUNCTIONS.cc_kext.x86_64 := $(CCKEXT_X86_FUNCTIONS) \
 372         absvti2 \
 373         addvti3 \
 374         ashlti3 \
 375         ashrti3 \
 376         clzti2 \
 377         cmpti2 \
 378         ctzti2 \
 379         divti3 \
 380         ffsti2 \
 381         fixdfti \
 382         fixsfti \
 383         fixunsdfti \
 384         fixunssfti \
 385         fixunsxfti \
 386         fixxfti \
 387         floattidf \
 388         floattisf \
 389         floattixf \
 390         floatuntidf \
 391         floatuntisf \
 392         floatuntixf \
 393         lshrti3 \
 394         modti3 \
 395         multi3 \
 396         mulvti3 \
 397         negti2 \
 398         negvti2 \
 399         parityti2 \
 400         popcountti2 \
 401         subvti3 \
 402         ucmpti2 \
 403         udivmodti4 \
 404         udivti3 \
 405         umodti3
 406
 407 # FIXME: Currently, compiler-rt is missing implementations for a number of the
 408 # functions that need to go into libcc_kext.a. Filter them out for now.
 409 CCKEXT_MISSING_FUNCTIONS := \
 410         cmpdf2 cmpsf2 div0 \
 411         ffssi2 \
 412         udiv_w_sdiv unorddf2 unordsf2 bswapdi2 \
 413         bswapsi2 \
 414         gcc_bcmp \
 415         do_global_dtors \
 416         i686.get_pc_thunk.eax i686.get_pc_thunk.ebp i686.get_pc_thunk.ebx \
 417         i686.get_pc_thunk.ecx i686.get_pc_thunk.edi i686.get_pc_thunk.edx \
 418         i686.get_pc_thunk.esi \
 419         aeabi_cdcmpeq aeabi_cdrcmple aeabi_cfcmpeq aeabi_cfrcmple aeabi_dcmpeq \
 420         aeabi_dcmpge aeabi_dcmpgt aeabi_dcmple aeabi_dcmplt aeabi_drsub aeabi_fcmpeq \
 421         aeabi_fcmpge aeabi_fcmpgt aeabi_fcmple aeabi_fcmplt aeabi_frsub aeabi_idivmod \
 422         aeabi_uidivmod
 423
 424 FUNCTIONS.cc_kext.armv7 := \
 425         $(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext.armv7))
 426 FUNCTIONS.cc_kext.armv7f := \
 427         $(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext.armv7f))
 428 FUNCTIONS.cc_kext.armv7k := \
 429         $(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext.armv7k))
 430 FUNCTIONS.cc_kext.armv7s := \
 431         $(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext.armv7s))
 432 FUNCTIONS.cc_kext_ios5.armv7 := \
 433         $(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext_ios5.armv7))
 434 FUNCTIONS.cc_kext_ios5.armv7f := \
 435         $(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext_ios5.armv7f))
 436 FUNCTIONS.cc_kext_ios5.armv7k := \
 437         $(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext_ios5.armv7k))
 438 FUNCTIONS.cc_kext_ios5.armv7s := \
 439         $(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext_ios5.armv7s))
 440 FUNCTIONS.cc_kext.i386 := \
 441         $(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext.i386))
 442 FUNCTIONS.cc_kext.x86_64 := \
 443         $(filter-out $(CCKEXT_MISSING_FUNCTIONS),$(FUNCTIONS.cc_kext.x86_64))
 444
 445 KERNEL_USE.cc_kext := 1
 446 KERNEL_USE.cc_kext_ios5 := 1
 447
 448 VISIBILITY_HIDDEN := 1
 449
 450 SHARED_LIBRARY_SUFFIX := dylib