1include(CMakeParseArguments) 2include(CompilerRTUtils) 3include(BuiltinTests) 4 5set(CMAKE_LIPO "lipo" CACHE PATH "path to the lipo tool") 6 7# On OS X SDKs can be installed anywhere on the base system and xcode-select can 8# set the default Xcode to use. This function finds the SDKs that are present in 9# the current Xcode. 10function(find_darwin_sdk_dir var sdk_name) 11 set(DARWIN_${sdk_name}_CACHED_SYSROOT "" CACHE STRING "Darwin SDK path for SDK ${sdk_name}.") 12 set(DARWIN_PREFER_PUBLIC_SDK OFF CACHE BOOL "Prefer Darwin public SDK, even when an internal SDK is present.") 13 14 if(DARWIN_${sdk_name}_CACHED_SYSROOT) 15 set(${var} ${DARWIN_${sdk_name}_CACHED_SYSROOT} PARENT_SCOPE) 16 return() 17 endif() 18 if(NOT DARWIN_PREFER_PUBLIC_SDK) 19 # Let's first try the internal SDK, otherwise use the public SDK. 20 execute_process( 21 COMMAND xcrun --sdk ${sdk_name}.internal --show-sdk-path 22 RESULT_VARIABLE result_process 23 OUTPUT_VARIABLE var_internal 24 OUTPUT_STRIP_TRAILING_WHITESPACE 25 ERROR_FILE /dev/null 26 ) 27 endif() 28 if((NOT result_process EQUAL 0) OR "" STREQUAL "${var_internal}") 29 execute_process( 30 COMMAND xcrun --sdk ${sdk_name} --show-sdk-path 31 RESULT_VARIABLE result_process 32 OUTPUT_VARIABLE var_internal 33 OUTPUT_STRIP_TRAILING_WHITESPACE 34 ERROR_FILE /dev/null 35 ) 36 else() 37 set(${var}_INTERNAL ${var_internal} PARENT_SCOPE) 38 endif() 39 if(result_process EQUAL 0) 40 set(${var} ${var_internal} PARENT_SCOPE) 41 endif() 42 message(STATUS "Checking DARWIN_${sdk_name}_SYSROOT - '${var_internal}'") 43 set(DARWIN_${sdk_name}_CACHED_SYSROOT ${var_internal} CACHE STRING "Darwin SDK path for SDK ${sdk_name}." FORCE) 44endfunction() 45 46function(find_darwin_sdk_version var sdk_name) 47 if (DARWIN_${sdk_name}_OVERRIDE_SDK_VERSION) 48 message(WARNING "Overriding ${sdk_name} SDK version to ${DARWIN_${sdk_name}_OVERRIDE_SDK_VERSION}") 49 set(${var} "${DARWIN_${sdk_name}_OVERRIDE_SDK_VERSION}" PARENT_SCOPE) 50 return() 51 endif() 52 set(result_process 1) 53 if(NOT DARWIN_PREFER_PUBLIC_SDK) 54 # Let's first try the internal SDK, otherwise use the public SDK. 55 execute_process( 56 COMMAND xcrun --sdk ${sdk_name}.internal --show-sdk-version 57 RESULT_VARIABLE result_process 58 OUTPUT_VARIABLE var_internal 59 OUTPUT_STRIP_TRAILING_WHITESPACE 60 ERROR_FILE /dev/null 61 ) 62 endif() 63 if((NOT ${result_process} EQUAL 0) OR "" STREQUAL "${var_internal}") 64 execute_process( 65 COMMAND xcrun --sdk ${sdk_name} --show-sdk-version 66 RESULT_VARIABLE result_process 67 OUTPUT_VARIABLE var_internal 68 OUTPUT_STRIP_TRAILING_WHITESPACE 69 ERROR_FILE /dev/null 70 ) 71 endif() 72 if(NOT result_process EQUAL 0) 73 message(FATAL_ERROR 74 "Failed to determine SDK version for \"${sdk_name}\" SDK") 75 endif() 76 # Check reported version looks sane. 77 if (NOT "${var_internal}" MATCHES "^[0-9]+\\.[0-9]+(\\.[0-9]+)?$") 78 message(FATAL_ERROR 79 "Reported SDK version \"${var_internal}\" does not look like a version") 80 endif() 81 set(${var} ${var_internal} PARENT_SCOPE) 82endfunction() 83 84# There isn't a clear mapping of what architectures are supported with a given 85# target platform, but ld's version output does list the architectures it can 86# link for. 87function(darwin_get_toolchain_supported_archs output_var) 88 execute_process( 89 COMMAND "${CMAKE_LINKER}" -v 90 ERROR_VARIABLE LINKER_VERSION) 91 92 string(REGEX MATCH "configured to support archs: ([^\n]+)" 93 ARCHES_MATCHED "${LINKER_VERSION}") 94 if(ARCHES_MATCHED) 95 set(ARCHES "${CMAKE_MATCH_1}") 96 message(STATUS "Got ld supported ARCHES: ${ARCHES}") 97 string(REPLACE " " ";" ARCHES ${ARCHES}) 98 else() 99 # If auto-detecting fails, fall back to a default set 100 message(WARNING "Detecting supported architectures from 'ld -v' failed. Returning default set.") 101 set(ARCHES "i386;x86_64;armv7;armv7s;arm64") 102 endif() 103 104 set(${output_var} ${ARCHES} PARENT_SCOPE) 105endfunction() 106 107# This function takes an OS and a list of architectures and identifies the 108# subset of the architectures list that the installed toolchain can target. 109function(darwin_test_archs os valid_archs) 110 if(${valid_archs}) 111 message(STATUS "Using cached valid architectures for ${os}.") 112 return() 113 endif() 114 115 set(archs ${ARGN}) 116 if(NOT TEST_COMPILE_ONLY) 117 message(STATUS "Finding valid architectures for ${os}...") 118 set(SIMPLE_C ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/src.c) 119 file(WRITE ${SIMPLE_C} "#include <stdio.h>\nint main() { printf(__FILE__); return 0; }\n") 120 121 set(os_linker_flags) 122 foreach(flag ${DARWIN_${os}_LINK_FLAGS}) 123 set(os_linker_flags "${os_linker_flags} ${flag}") 124 endforeach() 125 126 # Disable building for i386 for macOS SDK >= 10.15. The SDK doesn't support 127 # linking for i386 and the corresponding OS doesn't allow running macOS i386 128 # binaries. 129 if ("${os}" STREQUAL "osx") 130 find_darwin_sdk_version(macosx_sdk_version "macosx") 131 if ("${macosx_sdk_version}" VERSION_GREATER 10.15 OR "${macosx_sdk_version}" VERSION_EQUAL 10.15) 132 message(STATUS "Disabling i386 slice for ${valid_archs}") 133 list(REMOVE_ITEM archs "i386") 134 endif() 135 endif() 136 endif() 137 138 # The simple program will build for x86_64h on the simulator because it is 139 # compatible with x86_64 libraries (mostly), but since x86_64h isn't actually 140 # a valid or useful architecture for the iOS simulator we should drop it. 141 if(${os} MATCHES "^(iossim|tvossim|watchossim)$") 142 list(REMOVE_ITEM archs "x86_64h") 143 endif() 144 145 set(working_archs) 146 foreach(arch ${archs}) 147 148 set(arch_linker_flags "-arch ${arch} ${os_linker_flags}") 149 if(TEST_COMPILE_ONLY) 150 # `-w` is used to surpress compiler warnings which `try_compile_only()` treats as an error. 151 try_compile_only(CAN_TARGET_${os}_${arch} FLAGS -v -arch ${arch} ${DARWIN_${os}_CFLAGS} -w) 152 else() 153 set(SAVED_CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS}) 154 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${arch_linker_flags}") 155 try_compile(CAN_TARGET_${os}_${arch} ${CMAKE_BINARY_DIR} ${SIMPLE_C} 156 COMPILE_DEFINITIONS "-v -arch ${arch}" ${DARWIN_${os}_CFLAGS} 157 OUTPUT_VARIABLE TEST_OUTPUT) 158 set(CMAKE_EXE_LINKER_FLAGS ${SAVED_CMAKE_EXE_LINKER_FLAGS}) 159 endif() 160 if(${CAN_TARGET_${os}_${arch}}) 161 list(APPEND working_archs ${arch}) 162 else() 163 file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log 164 "Testing compiler for supporting ${os}-${arch}:\n" 165 "${TEST_OUTPUT}\n") 166 endif() 167 endforeach() 168 set(${valid_archs} ${working_archs} 169 CACHE STRING "List of valid architectures for platform ${os}." FORCE) 170endfunction() 171 172# This function checks the host cpusubtype to see if it is post-haswell. Haswell 173# and later machines can run x86_64h binaries. Haswell is cpusubtype 8. 174function(darwin_filter_host_archs input output) 175 list_intersect(tmp_var DARWIN_osx_ARCHS ${input}) 176 execute_process( 177 COMMAND sysctl hw.cpusubtype 178 OUTPUT_VARIABLE SUBTYPE) 179 180 string(REGEX MATCH "hw.cpusubtype: ([0-9]*)" 181 SUBTYPE_MATCHED "${SUBTYPE}") 182 set(HASWELL_SUPPORTED Off) 183 if(SUBTYPE_MATCHED) 184 if(${CMAKE_MATCH_1} GREATER 7) 185 set(HASWELL_SUPPORTED On) 186 endif() 187 endif() 188 if(NOT HASWELL_SUPPORTED) 189 list(REMOVE_ITEM tmp_var x86_64h) 190 endif() 191 set(${output} ${tmp_var} PARENT_SCOPE) 192endfunction() 193 194# Read and process the exclude file into a list of symbols 195function(darwin_read_list_from_file output_var file) 196 if(EXISTS ${file}) 197 file(READ ${file} EXCLUDES) 198 string(REPLACE "\n" ";" EXCLUDES ${EXCLUDES}) 199 set(${output_var} ${EXCLUDES} PARENT_SCOPE) 200 endif() 201endfunction() 202 203# this function takes an OS, architecture and minimum version and provides a 204# list of builtin functions to exclude 205function(darwin_find_excluded_builtins_list output_var) 206 cmake_parse_arguments(LIB 207 "" 208 "OS;ARCH;MIN_VERSION" 209 "" 210 ${ARGN}) 211 212 if(NOT LIB_OS OR NOT LIB_ARCH) 213 message(FATAL_ERROR "Must specify OS and ARCH to darwin_find_excluded_builtins_list!") 214 endif() 215 216 darwin_read_list_from_file(${LIB_OS}_BUILTINS 217 ${DARWIN_EXCLUDE_DIR}/${LIB_OS}.txt) 218 darwin_read_list_from_file(${LIB_OS}_${LIB_ARCH}_BASE_BUILTINS 219 ${DARWIN_EXCLUDE_DIR}/${LIB_OS}-${LIB_ARCH}.txt) 220 221 if(LIB_MIN_VERSION) 222 file(GLOB builtin_lists ${DARWIN_EXCLUDE_DIR}/${LIB_OS}*-${LIB_ARCH}.txt) 223 foreach(builtin_list ${builtin_lists}) 224 string(REGEX MATCH "${LIB_OS}([0-9\\.]*)-${LIB_ARCH}.txt" VERSION_MATCHED "${builtin_list}") 225 if (VERSION_MATCHED AND NOT CMAKE_MATCH_1 VERSION_LESS LIB_MIN_VERSION) 226 if(NOT smallest_version) 227 set(smallest_version ${CMAKE_MATCH_1}) 228 elseif(CMAKE_MATCH_1 VERSION_LESS smallest_version) 229 set(smallest_version ${CMAKE_MATCH_1}) 230 endif() 231 endif() 232 endforeach() 233 234 if(smallest_version) 235 darwin_read_list_from_file(${LIB_ARCH}_${LIB_OS}_BUILTINS 236 ${DARWIN_EXCLUDE_DIR}/${LIB_OS}${smallest_version}-${LIB_ARCH}.txt) 237 endif() 238 endif() 239 240 set(${output_var} 241 ${${LIB_ARCH}_${LIB_OS}_BUILTINS} 242 ${${LIB_OS}_${LIB_ARCH}_BASE_BUILTINS} 243 ${${LIB_OS}_BUILTINS} PARENT_SCOPE) 244endfunction() 245 246# adds a single builtin library for a single OS & ARCH 247macro(darwin_add_builtin_library name suffix) 248 cmake_parse_arguments(LIB 249 "" 250 "PARENT_TARGET;OS;ARCH" 251 "SOURCES;CFLAGS;DEFS;INCLUDE_DIRS" 252 ${ARGN}) 253 set(libname "${name}.${suffix}_${LIB_ARCH}_${LIB_OS}") 254 add_library(${libname} STATIC ${LIB_SOURCES}) 255 if(DARWIN_${LIB_OS}_SYSROOT) 256 set(sysroot_flag -isysroot ${DARWIN_${LIB_OS}_SYSROOT}) 257 endif() 258 259 # Make a copy of the compilation flags. 260 set(builtin_cflags ${LIB_CFLAGS}) 261 262 # Strip out any inappropriate flags for the target. 263 if("${LIB_ARCH}" MATCHES "^(armv7|armv7k|armv7s)$") 264 set(builtin_cflags "") 265 foreach(cflag "${LIB_CFLAGS}") 266 string(REPLACE "-fomit-frame-pointer" "" cflag "${cflag}") 267 list(APPEND builtin_cflags ${cflag}) 268 endforeach(cflag) 269 endif() 270 271 set_target_compile_flags(${libname} 272 ${sysroot_flag} 273 ${DARWIN_${LIB_OS}_BUILTIN_MIN_VER_FLAG} 274 ${builtin_cflags}) 275 target_include_directories(${libname} 276 PRIVATE ${LIB_INCLUDE_DIRS}) 277 set_property(TARGET ${libname} APPEND PROPERTY 278 COMPILE_DEFINITIONS ${LIB_DEFS}) 279 set_target_properties(${libname} PROPERTIES 280 OUTPUT_NAME ${libname}${COMPILER_RT_OS_SUFFIX}) 281 set_target_properties(${libname} PROPERTIES 282 OSX_ARCHITECTURES ${LIB_ARCH}) 283 284 if(LIB_PARENT_TARGET) 285 add_dependencies(${LIB_PARENT_TARGET} ${libname}) 286 endif() 287 288 list(APPEND ${LIB_OS}_${suffix}_libs ${libname}) 289 list(APPEND ${LIB_OS}_${suffix}_lipo_flags -arch ${arch} $<TARGET_FILE:${libname}>) 290 set_target_properties(${libname} PROPERTIES FOLDER "Compiler-RT Libraries") 291endmacro() 292 293function(darwin_lipo_libs name) 294 cmake_parse_arguments(LIB 295 "" 296 "PARENT_TARGET;OUTPUT_DIR;INSTALL_DIR" 297 "LIPO_FLAGS;DEPENDS" 298 ${ARGN}) 299 if(LIB_DEPENDS AND LIB_LIPO_FLAGS) 300 add_custom_command(OUTPUT ${LIB_OUTPUT_DIR}/lib${name}.a 301 COMMAND ${CMAKE_COMMAND} -E make_directory ${LIB_OUTPUT_DIR} 302 COMMAND ${CMAKE_LIPO} -output 303 ${LIB_OUTPUT_DIR}/lib${name}.a 304 -create ${LIB_LIPO_FLAGS} 305 DEPENDS ${LIB_DEPENDS} 306 ) 307 add_custom_target(${name} 308 DEPENDS ${LIB_OUTPUT_DIR}/lib${name}.a) 309 set_target_properties(${name} PROPERTIES FOLDER "Compiler-RT Misc") 310 add_dependencies(${LIB_PARENT_TARGET} ${name}) 311 312 if(CMAKE_CONFIGURATION_TYPES) 313 set(install_component ${LIB_PARENT_TARGET}) 314 else() 315 set(install_component ${name}) 316 endif() 317 install(FILES ${LIB_OUTPUT_DIR}/lib${name}.a 318 DESTINATION ${LIB_INSTALL_DIR} 319 COMPONENT ${install_component}) 320 add_compiler_rt_install_targets(${name} PARENT_TARGET ${LIB_PARENT_TARGET}) 321 else() 322 message(WARNING "Not generating lipo target for ${name} because no input libraries exist.") 323 endif() 324endfunction() 325 326# Generates builtin libraries for all operating systems specified in ARGN. Each 327# OS library is constructed by lipo-ing together single-architecture libraries. 328macro(darwin_add_builtin_libraries) 329 set(DARWIN_EXCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/Darwin-excludes) 330 331 set(CFLAGS "-fPIC -O3 -fvisibility=hidden -DVISIBILITY_HIDDEN -Wall -fomit-frame-pointer") 332 set(CMAKE_C_FLAGS "") 333 set(CMAKE_CXX_FLAGS "") 334 set(CMAKE_ASM_FLAGS "") 335 336 set(PROFILE_SOURCES ../profile/InstrProfiling 337 ../profile/InstrProfilingBuffer 338 ../profile/InstrProfilingPlatformDarwin 339 ../profile/InstrProfilingWriter) 340 foreach (os ${ARGN}) 341 list_intersect(DARWIN_BUILTIN_ARCHS DARWIN_${os}_BUILTIN_ARCHS BUILTIN_SUPPORTED_ARCH) 342 foreach (arch ${DARWIN_BUILTIN_ARCHS}) 343 darwin_find_excluded_builtins_list(${arch}_${os}_EXCLUDED_BUILTINS 344 OS ${os} 345 ARCH ${arch} 346 MIN_VERSION ${DARWIN_${os}_BUILTIN_MIN_VER}) 347 348 filter_builtin_sources(filtered_sources 349 EXCLUDE ${arch}_${os}_EXCLUDED_BUILTINS 350 ${${arch}_SOURCES}) 351 352 darwin_add_builtin_library(clang_rt builtins 353 OS ${os} 354 ARCH ${arch} 355 SOURCES ${filtered_sources} 356 CFLAGS ${CFLAGS} -arch ${arch} 357 PARENT_TARGET builtins) 358 endforeach() 359 360 # Don't build cc_kext libraries for simulator platforms 361 if(NOT DARWIN_${os}_SKIP_CC_KEXT) 362 foreach (arch ${DARWIN_BUILTIN_ARCHS}) 363 # By not specifying MIN_VERSION this only reads the OS and OS-arch lists. 364 # We don't want to filter out the builtins that are present in libSystem 365 # because kexts can't link libSystem. 366 darwin_find_excluded_builtins_list(${arch}_${os}_EXCLUDED_BUILTINS 367 OS ${os} 368 ARCH ${arch}) 369 370 filter_builtin_sources(filtered_sources 371 EXCLUDE ${arch}_${os}_EXCLUDED_BUILTINS 372 ${${arch}_SOURCES}) 373 374 # In addition to the builtins cc_kext includes some profile sources 375 darwin_add_builtin_library(clang_rt cc_kext 376 OS ${os} 377 ARCH ${arch} 378 SOURCES ${filtered_sources} ${PROFILE_SOURCES} 379 CFLAGS ${CFLAGS} -arch ${arch} -mkernel 380 DEFS KERNEL_USE 381 INCLUDE_DIRS ../../include 382 PARENT_TARGET builtins) 383 endforeach() 384 set(archive_name clang_rt.cc_kext_${os}) 385 if(${os} STREQUAL "osx") 386 set(archive_name clang_rt.cc_kext) 387 endif() 388 darwin_lipo_libs(${archive_name} 389 PARENT_TARGET builtins 390 LIPO_FLAGS ${${os}_cc_kext_lipo_flags} 391 DEPENDS ${${os}_cc_kext_libs} 392 OUTPUT_DIR ${COMPILER_RT_LIBRARY_OUTPUT_DIR} 393 INSTALL_DIR ${COMPILER_RT_LIBRARY_INSTALL_DIR}) 394 endif() 395 endforeach() 396 397 # We put the x86 sim slices into the archives for their base OS 398 foreach (os ${ARGN}) 399 if(NOT ${os} MATCHES ".*sim$") 400 darwin_lipo_libs(clang_rt.${os} 401 PARENT_TARGET builtins 402 LIPO_FLAGS ${${os}_builtins_lipo_flags} ${${os}sim_builtins_lipo_flags} 403 DEPENDS ${${os}_builtins_libs} ${${os}sim_builtins_libs} 404 OUTPUT_DIR ${COMPILER_RT_LIBRARY_OUTPUT_DIR} 405 INSTALL_DIR ${COMPILER_RT_LIBRARY_INSTALL_DIR}) 406 endif() 407 endforeach() 408 darwin_add_embedded_builtin_libraries() 409endmacro() 410 411macro(darwin_add_embedded_builtin_libraries) 412 # this is a hacky opt-out. If you can't target both intel and arm 413 # architectures we bail here. 414 set(DARWIN_SOFT_FLOAT_ARCHS armv6m armv7m armv7em armv7) 415 set(DARWIN_HARD_FLOAT_ARCHS armv7em armv7) 416 if(COMPILER_RT_SUPPORTED_ARCH MATCHES ".*armv.*") 417 list(FIND COMPILER_RT_SUPPORTED_ARCH i386 i386_idx) 418 if(i386_idx GREATER -1) 419 list(APPEND DARWIN_HARD_FLOAT_ARCHS i386) 420 endif() 421 422 list(FIND COMPILER_RT_SUPPORTED_ARCH x86_64 x86_64_idx) 423 if(x86_64_idx GREATER -1) 424 list(APPEND DARWIN_HARD_FLOAT_ARCHS x86_64) 425 endif() 426 427 set(MACHO_SYM_DIR ${CMAKE_CURRENT_SOURCE_DIR}/macho_embedded) 428 429 set(CFLAGS "-Oz -Wall -fomit-frame-pointer -ffreestanding") 430 set(CMAKE_C_FLAGS "") 431 set(CMAKE_CXX_FLAGS "") 432 set(CMAKE_ASM_FLAGS "") 433 434 set(SOFT_FLOAT_FLAG -mfloat-abi=soft) 435 set(HARD_FLOAT_FLAG -mfloat-abi=hard) 436 437 set(ENABLE_PIC Off) 438 set(PIC_FLAG -fPIC) 439 set(STATIC_FLAG -static) 440 441 set(DARWIN_macho_embedded_ARCHS armv6m armv7m armv7em armv7 i386 x86_64) 442 443 set(DARWIN_macho_embedded_LIBRARY_OUTPUT_DIR 444 ${COMPILER_RT_OUTPUT_DIR}/lib/macho_embedded) 445 set(DARWIN_macho_embedded_LIBRARY_INSTALL_DIR 446 ${COMPILER_RT_INSTALL_PATH}/lib/macho_embedded) 447 448 set(CFLAGS_armv7 "-target thumbv7-apple-darwin-eabi") 449 set(CFLAGS_i386 "-march=pentium") 450 451 darwin_read_list_from_file(common_FUNCTIONS ${MACHO_SYM_DIR}/common.txt) 452 darwin_read_list_from_file(thumb2_FUNCTIONS ${MACHO_SYM_DIR}/thumb2.txt) 453 darwin_read_list_from_file(thumb2_64_FUNCTIONS ${MACHO_SYM_DIR}/thumb2-64.txt) 454 darwin_read_list_from_file(arm_FUNCTIONS ${MACHO_SYM_DIR}/arm.txt) 455 darwin_read_list_from_file(i386_FUNCTIONS ${MACHO_SYM_DIR}/i386.txt) 456 457 458 set(armv6m_FUNCTIONS ${common_FUNCTIONS} ${arm_FUNCTIONS}) 459 set(armv7m_FUNCTIONS ${common_FUNCTIONS} ${arm_FUNCTIONS} ${thumb2_FUNCTIONS}) 460 set(armv7em_FUNCTIONS ${common_FUNCTIONS} ${arm_FUNCTIONS} ${thumb2_FUNCTIONS}) 461 set(armv7_FUNCTIONS ${common_FUNCTIONS} ${arm_FUNCTIONS} ${thumb2_FUNCTIONS} ${thumb2_64_FUNCTIONS}) 462 set(i386_FUNCTIONS ${common_FUNCTIONS} ${i386_FUNCTIONS}) 463 set(x86_64_FUNCTIONS ${common_FUNCTIONS}) 464 465 foreach(arch ${DARWIN_macho_embedded_ARCHS}) 466 filter_builtin_sources(${arch}_filtered_sources 467 INCLUDE ${arch}_FUNCTIONS 468 ${${arch}_SOURCES}) 469 if(NOT ${arch}_filtered_sources) 470 message(WARNING "${arch}_SOURCES: ${${arch}_SOURCES}") 471 message(WARNING "${arch}_FUNCTIONS: ${${arch}_FUNCTIONS}") 472 message(FATAL_ERROR "Empty filtered sources!") 473 endif() 474 endforeach() 475 476 foreach(float_type SOFT HARD) 477 foreach(type PIC STATIC) 478 string(TOLOWER "${float_type}_${type}" lib_suffix) 479 foreach(arch ${DARWIN_${float_type}_FLOAT_ARCHS}) 480 set(DARWIN_macho_embedded_SYSROOT ${DARWIN_osx_SYSROOT}) 481 set(float_flag) 482 if(${arch} MATCHES "^arm") 483 # x86 targets are hard float by default, but the complain about the 484 # float ABI flag, so don't pass it unless we're targeting arm. 485 set(float_flag ${${float_type}_FLOAT_FLAG}) 486 endif() 487 darwin_add_builtin_library(clang_rt ${lib_suffix} 488 OS macho_embedded 489 ARCH ${arch} 490 SOURCES ${${arch}_filtered_sources} 491 CFLAGS ${CFLAGS} -arch ${arch} ${${type}_FLAG} ${float_flag} ${CFLAGS_${arch}} 492 PARENT_TARGET builtins) 493 endforeach() 494 foreach(lib ${macho_embedded_${lib_suffix}_libs}) 495 set_target_properties(${lib} PROPERTIES LINKER_LANGUAGE C) 496 endforeach() 497 darwin_lipo_libs(clang_rt.${lib_suffix} 498 PARENT_TARGET builtins 499 LIPO_FLAGS ${macho_embedded_${lib_suffix}_lipo_flags} 500 DEPENDS ${macho_embedded_${lib_suffix}_libs} 501 OUTPUT_DIR ${DARWIN_macho_embedded_LIBRARY_OUTPUT_DIR} 502 INSTALL_DIR ${DARWIN_macho_embedded_LIBRARY_INSTALL_DIR}) 503 endforeach() 504 endforeach() 505 endif() 506endmacro() 507