1include(ExternalProject) 2include(CompilerRTUtils) 3include(HandleCompilerRT) 4 5function(set_target_output_directories target output_dir) 6 # For RUNTIME_OUTPUT_DIRECTORY variable, Multi-configuration generators 7 # append a per-configuration subdirectory to the specified directory. 8 # To avoid the appended folder, the configuration specific variable must be 9 # set 'RUNTIME_OUTPUT_DIRECTORY_${CONF}': 10 # RUNTIME_OUTPUT_DIRECTORY_DEBUG, RUNTIME_OUTPUT_DIRECTORY_RELEASE, ... 11 if(CMAKE_CONFIGURATION_TYPES) 12 foreach(build_mode ${CMAKE_CONFIGURATION_TYPES}) 13 string(TOUPPER "${build_mode}" CONFIG_SUFFIX) 14 set_target_properties("${target}" PROPERTIES 15 "ARCHIVE_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${output_dir} 16 "LIBRARY_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${output_dir} 17 "RUNTIME_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${output_dir}) 18 endforeach() 19 else() 20 set_target_properties("${target}" PROPERTIES 21 ARCHIVE_OUTPUT_DIRECTORY ${output_dir} 22 LIBRARY_OUTPUT_DIRECTORY ${output_dir} 23 RUNTIME_OUTPUT_DIRECTORY ${output_dir}) 24 endif() 25endfunction() 26 27# Tries to add an "object library" target for a given list of OSs and/or 28# architectures with name "<name>.<arch>" for non-Darwin platforms if 29# architecture can be targeted, and "<name>.<os>" for Darwin platforms. 30# add_compiler_rt_object_libraries(<name> 31# OS <os names> 32# ARCHS <architectures> 33# SOURCES <source files> 34# CFLAGS <compile flags> 35# DEFS <compile definitions> 36# DEPS <dependencies> 37# ADDITIONAL_HEADERS <header files>) 38function(add_compiler_rt_object_libraries name) 39 cmake_parse_arguments(LIB "" "" "OS;ARCHS;SOURCES;CFLAGS;DEFS;DEPS;ADDITIONAL_HEADERS" 40 ${ARGN}) 41 set(libnames) 42 if(APPLE) 43 foreach(os ${LIB_OS}) 44 set(libname "${name}.${os}") 45 set(libnames ${libnames} ${libname}) 46 set(extra_cflags_${libname} ${DARWIN_${os}_CFLAGS}) 47 list_intersect(LIB_ARCHS_${libname} DARWIN_${os}_ARCHS LIB_ARCHS) 48 endforeach() 49 else() 50 foreach(arch ${LIB_ARCHS}) 51 set(libname "${name}.${arch}") 52 set(libnames ${libnames} ${libname}) 53 set(extra_cflags_${libname} ${TARGET_${arch}_CFLAGS}) 54 if(NOT CAN_TARGET_${arch}) 55 message(FATAL_ERROR "Architecture ${arch} can't be targeted") 56 return() 57 endif() 58 endforeach() 59 endif() 60 61 # Add headers to LIB_SOURCES for IDEs 62 compiler_rt_process_sources(LIB_SOURCES 63 ${LIB_SOURCES} 64 ADDITIONAL_HEADERS 65 ${LIB_ADDITIONAL_HEADERS} 66 ) 67 68 foreach(libname ${libnames}) 69 add_library(${libname} OBJECT ${LIB_SOURCES}) 70 if(LIB_DEPS) 71 add_dependencies(${libname} ${LIB_DEPS}) 72 endif() 73 74 # Strip out -msse3 if this isn't macOS. 75 set(target_flags ${LIB_CFLAGS}) 76 if(APPLE AND NOT "${libname}" MATCHES ".*\.osx.*") 77 list(REMOVE_ITEM target_flags "-msse3") 78 endif() 79 80 set_target_compile_flags(${libname} 81 ${extra_cflags_${libname}} ${target_flags}) 82 set_property(TARGET ${libname} APPEND PROPERTY 83 COMPILE_DEFINITIONS ${LIB_DEFS}) 84 set_target_properties(${libname} PROPERTIES FOLDER "Compiler-RT Libraries") 85 if(APPLE) 86 set_target_properties(${libname} PROPERTIES 87 OSX_ARCHITECTURES "${LIB_ARCHS_${libname}}") 88 endif() 89 endforeach() 90endfunction() 91 92# Takes a list of object library targets, and a suffix and appends the proper 93# TARGET_OBJECTS string to the output variable. 94# format_object_libs(<output> <suffix> ...) 95macro(format_object_libs output suffix) 96 foreach(lib ${ARGN}) 97 list(APPEND ${output} $<TARGET_OBJECTS:${lib}.${suffix}>) 98 endforeach() 99endmacro() 100 101function(add_compiler_rt_component name) 102 add_custom_target(${name}) 103 set_target_properties(${name} PROPERTIES FOLDER "Compiler-RT Misc") 104 if(COMMAND runtime_register_component) 105 runtime_register_component(${name}) 106 endif() 107 add_dependencies(compiler-rt ${name}) 108endfunction() 109 110function(add_asm_sources output) 111 set(${output} ${ARGN} PARENT_SCOPE) 112 # Xcode will try to compile asm files as C ('clang -x c'), and that will fail. 113 if (${CMAKE_GENERATOR} STREQUAL "Xcode") 114 enable_language(ASM) 115 else() 116 # Pass ASM file directly to the C++ compiler. 117 set_source_files_properties(${ARGN} PROPERTIES LANGUAGE C) 118 endif() 119endfunction() 120 121macro(set_output_name output name arch) 122 if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR) 123 set(${output} ${name}) 124 else() 125 if(ANDROID AND ${arch} STREQUAL "i386") 126 set(${output} "${name}-i686${COMPILER_RT_OS_SUFFIX}") 127 else() 128 set(${output} "${name}-${arch}${COMPILER_RT_OS_SUFFIX}") 129 endif() 130 endif() 131endmacro() 132 133# Adds static or shared runtime for a list of architectures and operating 134# systems and puts it in the proper directory in the build and install trees. 135# add_compiler_rt_runtime(<name> 136# {OBJECT|STATIC|SHARED} 137# ARCHS <architectures> 138# OS <os list> 139# SOURCES <source files> 140# CFLAGS <compile flags> 141# LINK_FLAGS <linker flags> 142# DEFS <compile definitions> 143# LINK_LIBS <linked libraries> (only for shared library) 144# OBJECT_LIBS <object libraries to use as sources> 145# PARENT_TARGET <convenience parent target> 146# ADDITIONAL_HEADERS <header files>) 147function(add_compiler_rt_runtime name type) 148 if(NOT type MATCHES "^(OBJECT|STATIC|SHARED)$") 149 message(FATAL_ERROR "type argument must be OBJECT, STATIC or SHARED") 150 return() 151 endif() 152 cmake_parse_arguments(LIB 153 "" 154 "PARENT_TARGET" 155 "OS;ARCHS;SOURCES;CFLAGS;LINK_FLAGS;DEFS;LINK_LIBS;OBJECT_LIBS;ADDITIONAL_HEADERS" 156 ${ARGN}) 157 set(libnames) 158 # Until we support this some other way, build compiler-rt runtime without LTO 159 # to allow non-LTO projects to link with it. 160 if(COMPILER_RT_HAS_FNO_LTO_FLAG) 161 set(NO_LTO_FLAGS "-fno-lto") 162 else() 163 set(NO_LTO_FLAGS "") 164 endif() 165 166 # By default do not instrument or use profdata for compiler-rt. 167 set(NO_PGO_FLAGS "") 168 if(NOT COMPILER_RT_ENABLE_PGO) 169 if(LLVM_PROFDATA_FILE AND COMPILER_RT_HAS_FNO_PROFILE_INSTR_USE_FLAG) 170 list(APPEND NO_PGO_FLAGS "-fno-profile-instr-use") 171 endif() 172 if(LLVM_BUILD_INSTRUMENTED MATCHES IR AND COMPILER_RT_HAS_FNO_PROFILE_GENERATE_FLAG) 173 list(APPEND NO_PGO_FLAGS "-fno-profile-generate") 174 elseif(LLVM_BUILD_INSTRUMENTED AND COMPILER_RT_HAS_FNO_PROFILE_INSTR_GENERATE_FLAG) 175 list(APPEND NO_PGO_FLAGS "-fno-profile-instr-generate") 176 endif() 177 endif() 178 179 list(LENGTH LIB_SOURCES LIB_SOURCES_LENGTH) 180 if (${LIB_SOURCES_LENGTH} GREATER 0) 181 # Add headers to LIB_SOURCES for IDEs. It doesn't make sense to 182 # do this for a runtime library that only consists of OBJECT 183 # libraries, so only add the headers when source files are present. 184 compiler_rt_process_sources(LIB_SOURCES 185 ${LIB_SOURCES} 186 ADDITIONAL_HEADERS 187 ${LIB_ADDITIONAL_HEADERS} 188 ) 189 endif() 190 191 if(APPLE) 192 foreach(os ${LIB_OS}) 193 # Strip out -msse3 if this isn't macOS. 194 list(LENGTH LIB_CFLAGS HAS_EXTRA_CFLAGS) 195 if(HAS_EXTRA_CFLAGS AND NOT "${os}" MATCHES "^(osx)$") 196 list(REMOVE_ITEM LIB_CFLAGS "-msse3") 197 endif() 198 if(type STREQUAL "STATIC") 199 set(libname "${name}_${os}") 200 else() 201 set(libname "${name}_${os}_dynamic") 202 set(extra_link_flags_${libname} ${DARWIN_${os}_LINK_FLAGS} ${LIB_LINK_FLAGS}) 203 endif() 204 list_intersect(LIB_ARCHS_${libname} DARWIN_${os}_ARCHS LIB_ARCHS) 205 if(LIB_ARCHS_${libname}) 206 list(APPEND libnames ${libname}) 207 set(extra_cflags_${libname} ${DARWIN_${os}_CFLAGS} ${NO_LTO_FLAGS} ${NO_PGO_FLAGS} ${LIB_CFLAGS}) 208 set(output_name_${libname} ${libname}${COMPILER_RT_OS_SUFFIX}) 209 set(sources_${libname} ${LIB_SOURCES}) 210 format_object_libs(sources_${libname} ${os} ${LIB_OBJECT_LIBS}) 211 get_compiler_rt_output_dir(${COMPILER_RT_DEFAULT_TARGET_ARCH} output_dir_${libname}) 212 get_compiler_rt_install_dir(${COMPILER_RT_DEFAULT_TARGET_ARCH} install_dir_${libname}) 213 endif() 214 endforeach() 215 else() 216 foreach(arch ${LIB_ARCHS}) 217 if(NOT CAN_TARGET_${arch}) 218 message(FATAL_ERROR "Architecture ${arch} can't be targeted") 219 return() 220 endif() 221 if(type STREQUAL "OBJECT") 222 set(libname "${name}-${arch}") 223 set_output_name(output_name_${libname} ${name}${COMPILER_RT_OS_SUFFIX} ${arch}) 224 elseif(type STREQUAL "STATIC") 225 set(libname "${name}-${arch}") 226 set_output_name(output_name_${libname} ${name} ${arch}) 227 else() 228 set(libname "${name}-dynamic-${arch}") 229 set(extra_cflags_${libname} ${TARGET_${arch}_CFLAGS} ${LIB_CFLAGS}) 230 set(extra_link_flags_${libname} ${TARGET_${arch}_LINK_FLAGS} ${LIB_LINK_FLAGS}) 231 if(WIN32) 232 set_output_name(output_name_${libname} ${name}_dynamic ${arch}) 233 else() 234 set_output_name(output_name_${libname} ${name} ${arch}) 235 endif() 236 endif() 237 if(COMPILER_RT_USE_BUILTINS_LIBRARY AND NOT type STREQUAL "OBJECT") 238 get_compiler_rt_target(${arch} target) 239 find_compiler_rt_library(builtins ${target} builtins_${libname}) 240 endif() 241 set(sources_${libname} ${LIB_SOURCES}) 242 format_object_libs(sources_${libname} ${arch} ${LIB_OBJECT_LIBS}) 243 set(libnames ${libnames} ${libname}) 244 set(extra_cflags_${libname} ${TARGET_${arch}_CFLAGS} ${NO_LTO_FLAGS} ${NO_PGO_FLAGS} ${LIB_CFLAGS}) 245 get_compiler_rt_output_dir(${arch} output_dir_${libname}) 246 get_compiler_rt_install_dir(${arch} install_dir_${libname}) 247 endforeach() 248 endif() 249 250 if(NOT libnames) 251 return() 252 endif() 253 254 if(LIB_PARENT_TARGET) 255 # If the parent targets aren't created we should create them 256 if(NOT TARGET ${LIB_PARENT_TARGET}) 257 add_custom_target(${LIB_PARENT_TARGET}) 258 set_target_properties(${LIB_PARENT_TARGET} PROPERTIES 259 FOLDER "Compiler-RT Misc") 260 endif() 261 endif() 262 263 foreach(libname ${libnames}) 264 # If you are using a multi-configuration generator we don't generate 265 # per-library install rules, so we fall back to the parent target COMPONENT 266 if(CMAKE_CONFIGURATION_TYPES AND LIB_PARENT_TARGET) 267 set(COMPONENT_OPTION COMPONENT ${LIB_PARENT_TARGET}) 268 else() 269 set(COMPONENT_OPTION COMPONENT ${libname}) 270 endif() 271 272 if(type STREQUAL "OBJECT") 273 if(CMAKE_C_COMPILER_ID MATCHES Clang AND CMAKE_C_COMPILER_TARGET) 274 list(APPEND extra_cflags_${libname} "--target=${CMAKE_C_COMPILER_TARGET}") 275 endif() 276 if(CMAKE_SYSROOT) 277 list(APPEND extra_cflags_${libname} "--sysroot=${CMAKE_SYSROOT}") 278 endif() 279 string(REPLACE ";" " " extra_cflags_${libname} "${extra_cflags_${libname}}") 280 string(REGEX MATCHALL "<[A-Za-z0-9_]*>" substitutions 281 ${CMAKE_C_COMPILE_OBJECT}) 282 set(compile_command_${libname} "${CMAKE_C_COMPILE_OBJECT}") 283 284 set(output_file_${libname} ${output_name_${libname}}${CMAKE_C_OUTPUT_EXTENSION}) 285 foreach(substitution ${substitutions}) 286 if(substitution STREQUAL "<CMAKE_C_COMPILER>") 287 string(REPLACE "<CMAKE_C_COMPILER>" "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}" 288 compile_command_${libname} ${compile_command_${libname}}) 289 elseif(substitution STREQUAL "<OBJECT>") 290 string(REPLACE "<OBJECT>" "${output_dir_${libname}}/${output_file_${libname}}" 291 compile_command_${libname} ${compile_command_${libname}}) 292 elseif(substitution STREQUAL "<SOURCE>") 293 string(REPLACE "<SOURCE>" "${sources_${libname}}" 294 compile_command_${libname} ${compile_command_${libname}}) 295 elseif(substitution STREQUAL "<FLAGS>") 296 string(REPLACE "<FLAGS>" "${CMAKE_C_FLAGS} ${extra_cflags_${libname}}" 297 compile_command_${libname} ${compile_command_${libname}}) 298 else() 299 string(REPLACE "${substitution}" "" compile_command_${libname} 300 ${compile_command_${libname}}) 301 endif() 302 endforeach() 303 separate_arguments(compile_command_${libname}) 304 add_custom_command( 305 OUTPUT ${output_dir_${libname}}/${output_file_${libname}} 306 COMMAND ${compile_command_${libname}} 307 DEPENDS ${sources_${libname}} 308 COMMENT "Building C object ${output_file_${libname}}") 309 add_custom_target(${libname} DEPENDS ${output_dir_${libname}}/${output_file_${libname}}) 310 install(FILES ${output_dir_${libname}}/${output_file_${libname}} 311 DESTINATION ${install_dir_${libname}} 312 ${COMPONENT_OPTION}) 313 else() 314 add_library(${libname} ${type} ${sources_${libname}}) 315 set_target_compile_flags(${libname} ${extra_cflags_${libname}}) 316 set_target_link_flags(${libname} ${extra_link_flags_${libname}}) 317 set_property(TARGET ${libname} APPEND PROPERTY 318 COMPILE_DEFINITIONS ${LIB_DEFS}) 319 set_target_output_directories(${libname} ${output_dir_${libname}}) 320 install(TARGETS ${libname} 321 ARCHIVE DESTINATION ${install_dir_${libname}} 322 ${COMPONENT_OPTION} 323 LIBRARY DESTINATION ${install_dir_${libname}} 324 ${COMPONENT_OPTION} 325 RUNTIME DESTINATION ${install_dir_${libname}} 326 ${COMPONENT_OPTION}) 327 endif() 328 set_target_properties(${libname} PROPERTIES 329 OUTPUT_NAME ${output_name_${libname}}) 330 set_target_properties(${libname} PROPERTIES FOLDER "Compiler-RT Runtime") 331 if(LIB_LINK_LIBS) 332 target_link_libraries(${libname} PRIVATE ${LIB_LINK_LIBS}) 333 endif() 334 if(builtins_${libname}) 335 target_link_libraries(${libname} PRIVATE ${builtins_${libname}}) 336 endif() 337 if(${type} STREQUAL "SHARED") 338 if(COMMAND llvm_setup_rpath) 339 llvm_setup_rpath(${libname}) 340 endif() 341 if(WIN32 AND NOT CYGWIN AND NOT MINGW) 342 set_target_properties(${libname} PROPERTIES IMPORT_PREFIX "") 343 set_target_properties(${libname} PROPERTIES IMPORT_SUFFIX ".lib") 344 endif() 345 if(APPLE) 346 # Ad-hoc sign the dylibs 347 add_custom_command(TARGET ${libname} 348 POST_BUILD 349 COMMAND codesign --sign - $<TARGET_FILE:${libname}> 350 WORKING_DIRECTORY ${COMPILER_RT_LIBRARY_OUTPUT_DIR} 351 ) 352 endif() 353 endif() 354 355 set(parent_target_arg) 356 if(LIB_PARENT_TARGET) 357 set(parent_target_arg PARENT_TARGET ${LIB_PARENT_TARGET}) 358 endif() 359 add_compiler_rt_install_targets(${libname} ${parent_target_arg}) 360 361 if(APPLE) 362 set_target_properties(${libname} PROPERTIES 363 OSX_ARCHITECTURES "${LIB_ARCHS_${libname}}") 364 endif() 365 366 if(type STREQUAL "SHARED") 367 rt_externalize_debuginfo(${libname}) 368 endif() 369 endforeach() 370 if(LIB_PARENT_TARGET) 371 add_dependencies(${LIB_PARENT_TARGET} ${libnames}) 372 endif() 373endfunction() 374 375# when cross compiling, COMPILER_RT_TEST_COMPILER_CFLAGS help 376# in compilation and linking of unittests. 377string(REPLACE " " ";" COMPILER_RT_UNITTEST_CFLAGS "${COMPILER_RT_TEST_COMPILER_CFLAGS}") 378set(COMPILER_RT_UNITTEST_LINK_FLAGS ${COMPILER_RT_UNITTEST_CFLAGS}) 379 380# Unittests support. 381set(COMPILER_RT_GTEST_PATH ${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest) 382set(COMPILER_RT_GTEST_SOURCE ${COMPILER_RT_GTEST_PATH}/src/gtest-all.cc) 383set(COMPILER_RT_GTEST_CFLAGS 384 -DGTEST_NO_LLVM_SUPPORT=1 385 -DGTEST_HAS_RTTI=0 386 -I${COMPILER_RT_GTEST_PATH}/include 387 -I${COMPILER_RT_GTEST_PATH} 388) 389 390# Mocking support. 391set(COMPILER_RT_GMOCK_PATH ${LLVM_MAIN_SRC_DIR}/utils/unittest/googlemock) 392set(COMPILER_RT_GMOCK_SOURCE ${COMPILER_RT_GMOCK_PATH}/src/gmock-all.cc) 393set(COMPILER_RT_GMOCK_CFLAGS 394 -DGTEST_NO_LLVM_SUPPORT=1 395 -DGTEST_HAS_RTTI=0 396 -I${COMPILER_RT_GMOCK_PATH}/include 397 -I${COMPILER_RT_GMOCK_PATH} 398) 399 400append_list_if(COMPILER_RT_DEBUG -DSANITIZER_DEBUG=1 COMPILER_RT_UNITTEST_CFLAGS) 401append_list_if(COMPILER_RT_HAS_WCOVERED_SWITCH_DEFAULT_FLAG -Wno-covered-switch-default COMPILER_RT_UNITTEST_CFLAGS) 402 403if(MSVC) 404 # gtest use a lot of stuff marked as deprecated on Windows. 405 list(APPEND COMPILER_RT_GTEST_CFLAGS -Wno-deprecated-declarations) 406endif() 407 408# Compile and register compiler-rt tests. 409# generate_compiler_rt_tests(<output object files> <test_suite> <test_name> 410# <test architecture> 411# KIND <custom prefix> 412# SUBDIR <subdirectory for testing binary> 413# SOURCES <sources to compile> 414# RUNTIME <tests runtime to link in> 415# CFLAGS <compile-time flags> 416# COMPILE_DEPS <compile-time dependencies> 417# DEPS <dependencies> 418# LINK_FLAGS <flags to use during linking> 419# ) 420function(generate_compiler_rt_tests test_objects test_suite testname arch) 421 cmake_parse_arguments(TEST "" "KIND;RUNTIME;SUBDIR" 422 "SOURCES;COMPILE_DEPS;DEPS;CFLAGS;LINK_FLAGS" ${ARGN}) 423 424 foreach(source ${TEST_SOURCES}) 425 sanitizer_test_compile( 426 "${test_objects}" "${source}" "${arch}" 427 KIND ${TEST_KIND} 428 COMPILE_DEPS ${TEST_COMPILE_DEPS} 429 DEPS ${TEST_DEPS} 430 CFLAGS ${TEST_CFLAGS} 431 ) 432 endforeach() 433 434 set(TEST_DEPS ${${test_objects}}) 435 436 if(NOT "${TEST_RUNTIME}" STREQUAL "") 437 list(APPEND TEST_DEPS ${TEST_RUNTIME}) 438 list(APPEND "${test_objects}" $<TARGET_FILE:${TEST_RUNTIME}>) 439 endif() 440 441 add_compiler_rt_test(${test_suite} "${testname}" "${arch}" 442 SUBDIR ${TEST_SUBDIR} 443 OBJECTS ${${test_objects}} 444 DEPS ${TEST_DEPS} 445 LINK_FLAGS ${TEST_LINK_FLAGS} 446 ) 447 set("${test_objects}" "${${test_objects}}" PARENT_SCOPE) 448endfunction() 449 450# Link objects into a single executable with COMPILER_RT_TEST_COMPILER, 451# using specified link flags. Make executable a part of provided 452# test_suite. 453# add_compiler_rt_test(<test_suite> <test_name> <arch> 454# SUBDIR <subdirectory for binary> 455# OBJECTS <object files> 456# DEPS <deps (e.g. runtime libs)> 457# LINK_FLAGS <link flags>) 458function(add_compiler_rt_test test_suite test_name arch) 459 cmake_parse_arguments(TEST "" "SUBDIR" "OBJECTS;DEPS;LINK_FLAGS" "" ${ARGN}) 460 set(output_dir ${CMAKE_CURRENT_BINARY_DIR}) 461 if(TEST_SUBDIR) 462 set(output_dir "${output_dir}/${TEST_SUBDIR}") 463 endif() 464 set(output_dir "${output_dir}/${CMAKE_CFG_INTDIR}") 465 file(MAKE_DIRECTORY "${output_dir}") 466 set(output_bin "${output_dir}/${test_name}") 467 if(MSVC) 468 set(output_bin "${output_bin}.exe") 469 endif() 470 471 # Use host compiler in a standalone build, and just-built Clang otherwise. 472 if(NOT COMPILER_RT_STANDALONE_BUILD) 473 list(APPEND TEST_DEPS clang) 474 endif() 475 476 get_target_flags_for_arch(${arch} TARGET_LINK_FLAGS) 477 list(APPEND TEST_LINK_FLAGS ${TARGET_LINK_FLAGS}) 478 479 # If we're not on MSVC, include the linker flags from CMAKE but override them 480 # with the provided link flags. This ensures that flags which are required to 481 # link programs at all are included, but the changes needed for the test 482 # trump. With MSVC we can't do that because CMake is set up to run link.exe 483 # when linking, not the compiler. Here, we hack it to use the compiler 484 # because we want to use -fsanitize flags. 485 486 # Only add CMAKE_EXE_LINKER_FLAGS when in a standalone bulid. 487 # Or else CMAKE_EXE_LINKER_FLAGS contains flags for build compiler of Clang/llvm. 488 # This might not be the same as what the COMPILER_RT_TEST_COMPILER supports. 489 # eg: the build compiler use lld linker and we build clang with default ld linker 490 # then to be tested clang will complain about lld options like --color-diagnostics. 491 if(NOT MSVC AND COMPILER_RT_STANDALONE_BUILD) 492 set(TEST_LINK_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${TEST_LINK_FLAGS}") 493 separate_arguments(TEST_LINK_FLAGS) 494 endif() 495 if(NOT COMPILER_RT_STANDALONE_BUILD AND COMPILER_RT_HAS_LLD AND "lld" IN_LIST LLVM_ENABLE_PROJECTS) 496 # CMAKE_EXE_LINKER_FLAGS may contain -fuse=lld 497 # FIXME: -DLLVM_ENABLE_LLD=ON and -DLLVM_ENABLE_PROJECTS without lld case. 498 list(APPEND TEST_DEPS lld) 499 endif() 500 add_custom_command( 501 OUTPUT "${output_bin}" 502 COMMAND ${COMPILER_RT_TEST_COMPILER} ${TEST_OBJECTS} -o "${output_bin}" 503 ${TEST_LINK_FLAGS} 504 DEPENDS ${TEST_DEPS} 505 ) 506 add_custom_target(T${test_name} DEPENDS "${output_bin}") 507 set_target_properties(T${test_name} PROPERTIES FOLDER "Compiler-RT Tests") 508 509 # Make the test suite depend on the binary. 510 add_dependencies(${test_suite} T${test_name}) 511endfunction() 512 513macro(add_compiler_rt_resource_file target_name file_name component) 514 set(src_file "${CMAKE_CURRENT_SOURCE_DIR}/${file_name}") 515 set(dst_file "${COMPILER_RT_OUTPUT_DIR}/share/${file_name}") 516 add_custom_command(OUTPUT ${dst_file} 517 DEPENDS ${src_file} 518 COMMAND ${CMAKE_COMMAND} -E copy_if_different ${src_file} ${dst_file} 519 COMMENT "Copying ${file_name}...") 520 add_custom_target(${target_name} DEPENDS ${dst_file}) 521 # Install in Clang resource directory. 522 install(FILES ${file_name} 523 DESTINATION ${COMPILER_RT_INSTALL_PATH}/share 524 COMPONENT ${component}) 525 add_dependencies(${component} ${target_name}) 526 527 set_target_properties(${target_name} PROPERTIES FOLDER "Compiler-RT Misc") 528endmacro() 529 530macro(add_compiler_rt_script name) 531 set(dst ${COMPILER_RT_EXEC_OUTPUT_DIR}/${name}) 532 set(src ${CMAKE_CURRENT_SOURCE_DIR}/${name}) 533 add_custom_command(OUTPUT ${dst} 534 DEPENDS ${src} 535 COMMAND ${CMAKE_COMMAND} -E copy_if_different ${src} ${dst} 536 COMMENT "Copying ${name}...") 537 add_custom_target(${name} DEPENDS ${dst}) 538 install(FILES ${dst} 539 PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE 540 DESTINATION ${COMPILER_RT_INSTALL_PATH}/bin) 541endmacro(add_compiler_rt_script src name) 542 543# Builds custom version of libc++ and installs it in <prefix>. 544# Can be used to build sanitized versions of libc++ for running unit tests. 545# add_custom_libcxx(<name> <prefix> 546# DEPS <list of build deps> 547# CFLAGS <list of compile flags> 548# USE_TOOLCHAIN) 549macro(add_custom_libcxx name prefix) 550 if(NOT COMPILER_RT_LIBCXX_PATH) 551 message(FATAL_ERROR "libcxx not found!") 552 endif() 553 if(NOT COMPILER_RT_LIBCXXABI_PATH) 554 message(FATAL_ERROR "libcxxabi not found!") 555 endif() 556 557 cmake_parse_arguments(LIBCXX "USE_TOOLCHAIN" "" "DEPS;CFLAGS;CMAKE_ARGS" ${ARGN}) 558 559 if(LIBCXX_USE_TOOLCHAIN) 560 set(compiler_args -DCMAKE_C_COMPILER=${COMPILER_RT_TEST_COMPILER} 561 -DCMAKE_CXX_COMPILER=${COMPILER_RT_TEST_CXX_COMPILER}) 562 if(NOT COMPILER_RT_STANDALONE_BUILD AND NOT RUNTIMES_BUILD) 563 set(toolchain_deps $<TARGET_FILE:clang>) 564 set(force_deps DEPENDS $<TARGET_FILE:clang>) 565 endif() 566 else() 567 set(compiler_args -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER} 568 -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}) 569 endif() 570 571 set(STAMP_DIR ${prefix}-stamps/) 572 set(BINARY_DIR ${prefix}-bins/) 573 574 add_custom_target(${name}-clear 575 COMMAND ${CMAKE_COMMAND} -E remove_directory ${BINARY_DIR} 576 COMMAND ${CMAKE_COMMAND} -E remove_directory ${STAMP_DIR} 577 COMMENT "Clobbering ${name} build and stamp directories" 578 USES_TERMINAL 579 ) 580 set_target_properties(${name}-clear PROPERTIES FOLDER "Compiler-RT Misc") 581 582 add_custom_command( 583 OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp 584 DEPENDS ${LIBCXX_DEPS} ${toolchain_deps} 585 COMMAND ${CMAKE_COMMAND} -E touch ${BINARY_DIR}/CMakeCache.txt 586 COMMAND ${CMAKE_COMMAND} -E touch ${STAMP_DIR}/${name}-mkdir 587 COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp 588 COMMENT "Clobbering bootstrap build and stamp directories" 589 ) 590 591 add_custom_target(${name}-clobber 592 DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp) 593 set_target_properties(${name}-clobber PROPERTIES FOLDER "Compiler-RT Misc") 594 595 set(PASSTHROUGH_VARIABLES 596 CMAKE_C_COMPILER_TARGET 597 CMAKE_CXX_COMPILER_TARGET 598 CMAKE_SHARED_LINKER_FLAGS 599 CMAKE_MODULE_LINKER_FLAGS 600 CMAKE_EXE_LINKER_FLAGS 601 CMAKE_INSTALL_PREFIX 602 CMAKE_MAKE_PROGRAM 603 CMAKE_LINKER 604 CMAKE_AR 605 CMAKE_RANLIB 606 CMAKE_NM 607 CMAKE_OBJCOPY 608 CMAKE_OBJDUMP 609 CMAKE_STRIP 610 CMAKE_SYSROOT 611 CMAKE_SYSTEM_NAME) 612 foreach(variable ${PASSTHROUGH_VARIABLES}) 613 get_property(is_value_set CACHE ${variable} PROPERTY VALUE SET) 614 if(${is_value_set}) 615 get_property(value CACHE ${variable} PROPERTY VALUE) 616 list(APPEND CMAKE_PASSTHROUGH_VARIABLES -D${variable}=${value}) 617 endif() 618 endforeach() 619 620 string(REPLACE ";" " " LIBCXX_C_FLAGS "${LIBCXX_CFLAGS}") 621 get_property(C_FLAGS CACHE CMAKE_C_FLAGS PROPERTY VALUE) 622 set(LIBCXX_C_FLAGS "${LIBCXX_C_FLAGS} ${C_FLAGS}") 623 624 string(REPLACE ";" " " LIBCXX_CXX_FLAGS "${LIBCXX_CFLAGS}") 625 get_property(CXX_FLAGS CACHE CMAKE_CXX_FLAGS PROPERTY VALUE) 626 set(LIBCXX_CXX_FLAGS "${LIBCXX_CXX_FLAGS} ${CXX_FLAGS}") 627 628 ExternalProject_Add(${name} 629 DEPENDS ${name}-clobber ${LIBCXX_DEPS} 630 PREFIX ${prefix} 631 SOURCE_DIR ${COMPILER_RT_SOURCE_DIR}/cmake/Modules/CustomLibcxx 632 STAMP_DIR ${STAMP_DIR} 633 BINARY_DIR ${BINARY_DIR} 634 CMAKE_ARGS ${CMAKE_PASSTHROUGH_VARIABLES} 635 ${compiler_args} 636 -DCMAKE_C_FLAGS=${LIBCXX_C_FLAGS} 637 -DCMAKE_CXX_FLAGS=${LIBCXX_CXX_FLAGS} 638 -DCMAKE_BUILD_TYPE=Release 639 -DCMAKE_TRY_COMPILE_TARGET_TYPE=STATIC_LIBRARY 640 -DLLVM_PATH=${LLVM_MAIN_SRC_DIR} 641 -DLLVM_BINARY_DIR=${prefix} 642 -DLLVM_LIBRARY_OUTPUT_INTDIR=${prefix}/lib 643 -DCOMPILER_RT_LIBCXX_PATH=${COMPILER_RT_LIBCXX_PATH} 644 -DCOMPILER_RT_LIBCXXABI_PATH=${COMPILER_RT_LIBCXXABI_PATH} 645 ${LIBCXX_CMAKE_ARGS} 646 INSTALL_COMMAND "" 647 STEP_TARGETS configure build 648 BUILD_ALWAYS 1 649 USES_TERMINAL_CONFIGURE 1 650 USES_TERMINAL_BUILD 1 651 USES_TERMINAL_INSTALL 1 652 EXCLUDE_FROM_ALL TRUE 653 BUILD_BYPRODUCTS "${prefix}/lib/libc++.a" "${prefix}/lib/libc++abi.a" 654 ) 655 656 if (CMAKE_GENERATOR MATCHES "Make") 657 set(run_clean "$(MAKE)" "-C" "${BINARY_DIR}" "clean") 658 else() 659 set(run_clean ${CMAKE_COMMAND} --build ${BINARY_DIR} --target clean 660 --config "$<CONFIG>") 661 endif() 662 663 ExternalProject_Add_Step(${name} clean 664 COMMAND ${run_clean} 665 COMMENT "Cleaning ${name}..." 666 DEPENDEES configure 667 ${force_deps} 668 WORKING_DIRECTORY ${BINARY_DIR} 669 EXCLUDE_FROM_MAIN 1 670 USES_TERMINAL 1 671 ) 672 ExternalProject_Add_StepTargets(${name} clean) 673 674 if(LIBCXX_USE_TOOLCHAIN) 675 add_dependencies(${name}-clean ${name}-clobber) 676 set_target_properties(${name}-clean PROPERTIES 677 SOURCES ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp) 678 endif() 679endmacro() 680 681function(rt_externalize_debuginfo name) 682 if(NOT COMPILER_RT_EXTERNALIZE_DEBUGINFO) 683 return() 684 endif() 685 686 if(NOT COMPILER_RT_EXTERNALIZE_DEBUGINFO_SKIP_STRIP) 687 set(strip_command COMMAND xcrun strip -Sl $<TARGET_FILE:${name}>) 688 endif() 689 690 if(APPLE) 691 if(CMAKE_CXX_FLAGS MATCHES "-flto" 692 OR CMAKE_CXX_FLAGS_${uppercase_CMAKE_BUILD_TYPE} MATCHES "-flto") 693 694 set(lto_object ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/${name}-lto.o) 695 set_property(TARGET ${name} APPEND_STRING PROPERTY 696 LINK_FLAGS " -Wl,-object_path_lto -Wl,${lto_object}") 697 endif() 698 add_custom_command(TARGET ${name} POST_BUILD 699 COMMAND xcrun dsymutil $<TARGET_FILE:${name}> 700 ${strip_command}) 701 else() 702 message(FATAL_ERROR "COMPILER_RT_EXTERNALIZE_DEBUGINFO isn't implemented for non-darwin platforms!") 703 endif() 704endfunction() 705 706 707# Configure lit configuration files, including compiler-rt specific variables. 708function(configure_compiler_rt_lit_site_cfg input output) 709 set_llvm_build_mode() 710 711 get_compiler_rt_output_dir(${COMPILER_RT_DEFAULT_TARGET_ARCH} output_dir) 712 713 string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} COMPILER_RT_RESOLVED_TEST_COMPILER ${COMPILER_RT_TEST_COMPILER}) 714 string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} COMPILER_RT_RESOLVED_LIBRARY_OUTPUT_DIR ${output_dir}) 715 716 configure_lit_site_cfg(${input} ${output}) 717endfunction() 718