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} ${ARGN} PARENT_SCOPE) 112 # CMake doesn't pass the correct architecture for Apple prior to CMake 3.19. https://gitlab.kitware.com/cmake/cmake/-/issues/20771 113 # MinGW didn't work correctly with assembly prior to CMake 3.17. https://gitlab.kitware.com/cmake/cmake/-/merge_requests/4287 and https://reviews.llvm.org/rGb780df052dd2b246a760d00e00f7de9ebdab9d09 114 # Workaround these two issues by compiling as C. 115 # Same workaround used in libunwind. Also update there if changed here. 116 if((APPLE AND CMAKE_VERSION VERSION_LESS 3.19) OR (MINGW AND CMAKE_VERSION VERSION_LESS 3.17)) 117 set_source_files_properties(${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 elseif("${arch}" MATCHES "^arm") 128 if(COMPILER_RT_DEFAULT_TARGET_ONLY) 129 set(triple "${COMPILER_RT_DEFAULT_TARGET_TRIPLE}") 130 else() 131 set(triple "${LLVM_TARGET_TRIPLE}") 132 endif() 133 # Except for baremetal, when using arch-suffixed runtime library names, 134 # clang only looks for libraries named "arm" or "armhf", see 135 # getArchNameForCompilerRTLib in clang. Therefore, try to inspect both 136 # the arch name and the triple if it seems like we're building an armhf 137 # target. 138 if (COMPILER_RT_BAREMETAL_BUILD) 139 set(${output} "${name}-${arch}${COMPILER_RT_OS_SUFFIX}") 140 elseif ("${arch}" MATCHES "hf$" OR "${triple}" MATCHES "hf$") 141 set(${output} "${name}-armhf${COMPILER_RT_OS_SUFFIX}") 142 else() 143 set(${output} "${name}-arm${COMPILER_RT_OS_SUFFIX}") 144 endif() 145 else() 146 set(${output} "${name}-${arch}${COMPILER_RT_OS_SUFFIX}") 147 endif() 148 endif() 149endmacro() 150 151# Adds static or shared runtime for a list of architectures and operating 152# systems and puts it in the proper directory in the build and install trees. 153# add_compiler_rt_runtime(<name> 154# {OBJECT|STATIC|SHARED|MODULE} 155# ARCHS <architectures> 156# OS <os list> 157# SOURCES <source files> 158# CFLAGS <compile flags> 159# LINK_FLAGS <linker flags> 160# DEFS <compile definitions> 161# DEPS <dependencies> 162# LINK_LIBS <linked libraries> (only for shared library) 163# OBJECT_LIBS <object libraries to use as sources> 164# PARENT_TARGET <convenience parent target> 165# ADDITIONAL_HEADERS <header files>) 166function(add_compiler_rt_runtime name type) 167 if(NOT type MATCHES "^(OBJECT|STATIC|SHARED|MODULE)$") 168 message(FATAL_ERROR 169 "type argument must be OBJECT, STATIC, SHARED or MODULE") 170 return() 171 endif() 172 cmake_parse_arguments(LIB 173 "" 174 "PARENT_TARGET" 175 "OS;ARCHS;SOURCES;CFLAGS;LINK_FLAGS;DEFS;DEPS;LINK_LIBS;OBJECT_LIBS;ADDITIONAL_HEADERS" 176 ${ARGN}) 177 set(libnames) 178 # Until we support this some other way, build compiler-rt runtime without LTO 179 # to allow non-LTO projects to link with it. 180 if(COMPILER_RT_HAS_FNO_LTO_FLAG) 181 set(NO_LTO_FLAGS "-fno-lto") 182 else() 183 set(NO_LTO_FLAGS "") 184 endif() 185 186 # By default do not instrument or use profdata for compiler-rt. 187 set(NO_PGO_FLAGS "") 188 if(NOT COMPILER_RT_ENABLE_PGO) 189 if(LLVM_PROFDATA_FILE AND COMPILER_RT_HAS_FNO_PROFILE_INSTR_USE_FLAG) 190 list(APPEND NO_PGO_FLAGS "-fno-profile-instr-use") 191 endif() 192 if(LLVM_BUILD_INSTRUMENTED MATCHES IR AND COMPILER_RT_HAS_FNO_PROFILE_GENERATE_FLAG) 193 list(APPEND NO_PGO_FLAGS "-fno-profile-generate") 194 elseif((LLVM_BUILD_INSTRUMENTED OR LLVM_BUILD_INSTRUMENTED_COVERAGE) AND COMPILER_RT_HAS_FNO_PROFILE_INSTR_GENERATE_FLAG) 195 list(APPEND NO_PGO_FLAGS "-fno-profile-instr-generate") 196 if(LLVM_BUILD_INSTRUMENTED_COVERAGE AND COMPILER_RT_HAS_FNO_COVERAGE_MAPPING_FLAG) 197 list(APPEND NO_PGO_FLAGS "-fno-coverage-mapping") 198 endif() 199 endif() 200 endif() 201 202 list(LENGTH LIB_SOURCES LIB_SOURCES_LENGTH) 203 if (${LIB_SOURCES_LENGTH} GREATER 0) 204 # Add headers to LIB_SOURCES for IDEs. It doesn't make sense to 205 # do this for a runtime library that only consists of OBJECT 206 # libraries, so only add the headers when source files are present. 207 compiler_rt_process_sources(LIB_SOURCES 208 ${LIB_SOURCES} 209 ADDITIONAL_HEADERS 210 ${LIB_ADDITIONAL_HEADERS} 211 ) 212 endif() 213 214 if(APPLE) 215 foreach(os ${LIB_OS}) 216 # Strip out -msse3 if this isn't macOS. 217 list(LENGTH LIB_CFLAGS HAS_EXTRA_CFLAGS) 218 if(HAS_EXTRA_CFLAGS AND NOT "${os}" MATCHES "^(osx)$") 219 list(REMOVE_ITEM LIB_CFLAGS "-msse3") 220 endif() 221 if(type STREQUAL "STATIC") 222 set(libname "${name}_${os}") 223 else() 224 set(libname "${name}_${os}_dynamic") 225 set(extra_link_flags_${libname} ${DARWIN_${os}_LINK_FLAGS} ${LIB_LINK_FLAGS}) 226 endif() 227 list_intersect(LIB_ARCHS_${libname} DARWIN_${os}_ARCHS LIB_ARCHS) 228 if(LIB_ARCHS_${libname}) 229 list(APPEND libnames ${libname}) 230 set(extra_cflags_${libname} ${DARWIN_${os}_CFLAGS} ${NO_LTO_FLAGS} ${NO_PGO_FLAGS} ${LIB_CFLAGS}) 231 set(output_name_${libname} ${libname}${COMPILER_RT_OS_SUFFIX}) 232 set(sources_${libname} ${LIB_SOURCES}) 233 format_object_libs(sources_${libname} ${os} ${LIB_OBJECT_LIBS}) 234 get_compiler_rt_output_dir(${COMPILER_RT_DEFAULT_TARGET_ARCH} output_dir_${libname}) 235 get_compiler_rt_install_dir(${COMPILER_RT_DEFAULT_TARGET_ARCH} install_dir_${libname}) 236 endif() 237 endforeach() 238 else() 239 foreach(arch ${LIB_ARCHS}) 240 if(NOT CAN_TARGET_${arch}) 241 message(FATAL_ERROR "Architecture ${arch} can't be targeted") 242 return() 243 endif() 244 if(type STREQUAL "OBJECT") 245 set(libname "${name}-${arch}") 246 set_output_name(output_name_${libname} ${name}${COMPILER_RT_OS_SUFFIX} ${arch}) 247 elseif(type STREQUAL "STATIC") 248 set(libname "${name}-${arch}") 249 set_output_name(output_name_${libname} ${name} ${arch}) 250 else() 251 set(libname "${name}-dynamic-${arch}") 252 set(extra_cflags_${libname} ${TARGET_${arch}_CFLAGS} ${LIB_CFLAGS}) 253 set(extra_link_flags_${libname} ${TARGET_${arch}_LINK_FLAGS} ${LIB_LINK_FLAGS}) 254 if(WIN32) 255 set_output_name(output_name_${libname} ${name}_dynamic ${arch}) 256 else() 257 set_output_name(output_name_${libname} ${name} ${arch}) 258 endif() 259 endif() 260 if(COMPILER_RT_USE_BUILTINS_LIBRARY AND NOT type STREQUAL "OBJECT" AND 261 NOT name STREQUAL "clang_rt.builtins") 262 get_compiler_rt_target(${arch} target) 263 find_compiler_rt_library(builtins builtins_${libname} TARGET ${target}) 264 if(builtins_${libname} STREQUAL "NOTFOUND") 265 message(FATAL_ERROR "Cannot find builtins library for the target architecture") 266 endif() 267 endif() 268 set(sources_${libname} ${LIB_SOURCES}) 269 format_object_libs(sources_${libname} ${arch} ${LIB_OBJECT_LIBS}) 270 set(libnames ${libnames} ${libname}) 271 set(extra_cflags_${libname} ${TARGET_${arch}_CFLAGS} ${NO_LTO_FLAGS} ${NO_PGO_FLAGS} ${LIB_CFLAGS}) 272 get_compiler_rt_output_dir(${arch} output_dir_${libname}) 273 get_compiler_rt_install_dir(${arch} install_dir_${libname}) 274 endforeach() 275 endif() 276 277 if(NOT libnames) 278 return() 279 endif() 280 281 if(LIB_PARENT_TARGET) 282 # If the parent targets aren't created we should create them 283 if(NOT TARGET ${LIB_PARENT_TARGET}) 284 add_custom_target(${LIB_PARENT_TARGET}) 285 set_target_properties(${LIB_PARENT_TARGET} PROPERTIES 286 FOLDER "Compiler-RT Misc") 287 endif() 288 endif() 289 290 foreach(libname ${libnames}) 291 # If you are using a multi-configuration generator we don't generate 292 # per-library install rules, so we fall back to the parent target COMPONENT 293 if(CMAKE_CONFIGURATION_TYPES AND LIB_PARENT_TARGET) 294 set(COMPONENT_OPTION COMPONENT ${LIB_PARENT_TARGET}) 295 else() 296 set(COMPONENT_OPTION COMPONENT ${libname}) 297 endif() 298 299 if(type STREQUAL "OBJECT") 300 if(CMAKE_C_COMPILER_ID MATCHES Clang AND CMAKE_C_COMPILER_TARGET) 301 list(APPEND extra_cflags_${libname} "--target=${CMAKE_C_COMPILER_TARGET}") 302 endif() 303 if(CMAKE_SYSROOT) 304 list(APPEND extra_cflags_${libname} "--sysroot=${CMAKE_SYSROOT}") 305 endif() 306 string(REPLACE ";" " " extra_cflags_${libname} "${extra_cflags_${libname}}") 307 string(REGEX MATCHALL "<[A-Za-z0-9_]*>" substitutions 308 ${CMAKE_C_COMPILE_OBJECT}) 309 set(compile_command_${libname} "${CMAKE_C_COMPILE_OBJECT}") 310 311 set(output_file_${libname} ${output_name_${libname}}${CMAKE_C_OUTPUT_EXTENSION}) 312 foreach(substitution ${substitutions}) 313 if(substitution STREQUAL "<CMAKE_C_COMPILER>") 314 string(REPLACE "<CMAKE_C_COMPILER>" "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}" 315 compile_command_${libname} ${compile_command_${libname}}) 316 elseif(substitution STREQUAL "<OBJECT>") 317 string(REPLACE "<OBJECT>" "${output_dir_${libname}}/${output_file_${libname}}" 318 compile_command_${libname} ${compile_command_${libname}}) 319 elseif(substitution STREQUAL "<SOURCE>") 320 string(REPLACE "<SOURCE>" "${sources_${libname}}" 321 compile_command_${libname} ${compile_command_${libname}}) 322 elseif(substitution STREQUAL "<FLAGS>") 323 string(REPLACE "<FLAGS>" "${CMAKE_C_FLAGS} ${extra_cflags_${libname}}" 324 compile_command_${libname} ${compile_command_${libname}}) 325 else() 326 string(REPLACE "${substitution}" "" compile_command_${libname} 327 ${compile_command_${libname}}) 328 endif() 329 endforeach() 330 separate_arguments(compile_command_${libname}) 331 add_custom_command( 332 OUTPUT ${output_dir_${libname}}/${output_file_${libname}} 333 COMMAND ${compile_command_${libname}} 334 DEPENDS ${sources_${libname}} 335 COMMENT "Building C object ${output_file_${libname}}") 336 add_custom_target(${libname} DEPENDS ${output_dir_${libname}}/${output_file_${libname}}) 337 install(FILES ${output_dir_${libname}}/${output_file_${libname}} 338 DESTINATION ${install_dir_${libname}} 339 ${COMPONENT_OPTION}) 340 else() 341 add_library(${libname} ${type} ${sources_${libname}}) 342 set_target_compile_flags(${libname} ${extra_cflags_${libname}}) 343 set_target_link_flags(${libname} ${extra_link_flags_${libname}}) 344 set_property(TARGET ${libname} APPEND PROPERTY 345 COMPILE_DEFINITIONS ${LIB_DEFS}) 346 set_target_output_directories(${libname} ${output_dir_${libname}}) 347 install(TARGETS ${libname} 348 ARCHIVE DESTINATION ${install_dir_${libname}} 349 ${COMPONENT_OPTION} 350 LIBRARY DESTINATION ${install_dir_${libname}} 351 ${COMPONENT_OPTION} 352 RUNTIME DESTINATION ${install_dir_${libname}} 353 ${COMPONENT_OPTION}) 354 endif() 355 if(LIB_DEPS) 356 add_dependencies(${libname} ${LIB_DEPS}) 357 endif() 358 set_target_properties(${libname} PROPERTIES 359 OUTPUT_NAME ${output_name_${libname}}) 360 set_target_properties(${libname} PROPERTIES FOLDER "Compiler-RT Runtime") 361 if(LIB_LINK_LIBS) 362 target_link_libraries(${libname} PRIVATE ${LIB_LINK_LIBS}) 363 endif() 364 if(builtins_${libname}) 365 target_link_libraries(${libname} PRIVATE ${builtins_${libname}}) 366 endif() 367 if(${type} STREQUAL "SHARED") 368 if(COMMAND llvm_setup_rpath) 369 llvm_setup_rpath(${libname}) 370 endif() 371 if(WIN32 AND NOT CYGWIN AND NOT MINGW) 372 set_target_properties(${libname} PROPERTIES IMPORT_PREFIX "") 373 set_target_properties(${libname} PROPERTIES IMPORT_SUFFIX ".lib") 374 endif() 375 if (APPLE AND NOT CMAKE_LINKER MATCHES ".*lld.*") 376 # Ad-hoc sign the dylibs when using Xcode versions older than 12. 377 # Xcode 12 shipped with ld64-609. 378 # FIXME: Remove whole conditional block once everything uses Xcode 12+. 379 set(LD_V_OUTPUT) 380 execute_process( 381 COMMAND sh -c "${CMAKE_LINKER} -v 2>&1 | head -1" 382 RESULT_VARIABLE HAD_ERROR 383 OUTPUT_VARIABLE LD_V_OUTPUT 384 ) 385 if (HAD_ERROR) 386 message(FATAL_ERROR "${CMAKE_LINKER} failed with status ${HAD_ERROR}") 387 endif() 388 set(NEED_EXPLICIT_ADHOC_CODESIGN 1) 389 if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*") 390 string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT}) 391 if (HOST_LINK_VERSION VERSION_GREATER_EQUAL 609) 392 set(NEED_EXPLICIT_ADHOC_CODESIGN 0) 393 endif() 394 endif() 395 if (NEED_EXPLICIT_ADHOC_CODESIGN) 396 add_custom_command(TARGET ${libname} 397 POST_BUILD 398 COMMAND codesign --sign - $<TARGET_FILE:${libname}> 399 WORKING_DIRECTORY ${COMPILER_RT_OUTPUT_LIBRARY_DIR} 400 ) 401 endif() 402 endif() 403 endif() 404 405 set(parent_target_arg) 406 if(LIB_PARENT_TARGET) 407 set(parent_target_arg PARENT_TARGET ${LIB_PARENT_TARGET}) 408 endif() 409 add_compiler_rt_install_targets(${libname} ${parent_target_arg}) 410 411 if(APPLE) 412 set_target_properties(${libname} PROPERTIES 413 OSX_ARCHITECTURES "${LIB_ARCHS_${libname}}") 414 endif() 415 416 if(type STREQUAL "SHARED") 417 rt_externalize_debuginfo(${libname}) 418 endif() 419 endforeach() 420 if(LIB_PARENT_TARGET) 421 add_dependencies(${LIB_PARENT_TARGET} ${libnames}) 422 endif() 423endfunction() 424 425# Compile and register compiler-rt tests. 426# generate_compiler_rt_tests(<output object files> <test_suite> <test_name> 427# <test architecture> 428# KIND <custom prefix> 429# SUBDIR <subdirectory for testing binary> 430# SOURCES <sources to compile> 431# RUNTIME <tests runtime to link in> 432# CFLAGS <compile-time flags> 433# COMPILE_DEPS <compile-time dependencies> 434# DEPS <dependencies> 435# LINK_FLAGS <flags to use during linking> 436# ) 437function(generate_compiler_rt_tests test_objects test_suite testname arch) 438 cmake_parse_arguments(TEST "" "KIND;RUNTIME;SUBDIR" 439 "SOURCES;COMPILE_DEPS;DEPS;CFLAGS;LINK_FLAGS" ${ARGN}) 440 441 foreach(source ${TEST_SOURCES}) 442 sanitizer_test_compile( 443 "${test_objects}" "${source}" "${arch}" 444 KIND ${TEST_KIND} 445 COMPILE_DEPS ${TEST_COMPILE_DEPS} 446 DEPS ${TEST_DEPS} 447 CFLAGS ${TEST_CFLAGS} 448 ) 449 endforeach() 450 451 set(TEST_DEPS ${${test_objects}}) 452 453 if(NOT "${TEST_RUNTIME}" STREQUAL "") 454 list(APPEND TEST_DEPS ${TEST_RUNTIME}) 455 list(APPEND "${test_objects}" $<TARGET_FILE:${TEST_RUNTIME}>) 456 endif() 457 458 add_compiler_rt_test(${test_suite} "${testname}" "${arch}" 459 SUBDIR ${TEST_SUBDIR} 460 OBJECTS ${${test_objects}} 461 DEPS ${TEST_DEPS} 462 LINK_FLAGS ${TEST_LINK_FLAGS} 463 ) 464 set("${test_objects}" "${${test_objects}}" PARENT_SCOPE) 465endfunction() 466 467# Link objects into a single executable with COMPILER_RT_TEST_COMPILER, 468# using specified link flags. Make executable a part of provided 469# test_suite. 470# add_compiler_rt_test(<test_suite> <test_name> <arch> 471# SUBDIR <subdirectory for binary> 472# OBJECTS <object files> 473# DEPS <deps (e.g. runtime libs)> 474# LINK_FLAGS <link flags>) 475function(add_compiler_rt_test test_suite test_name arch) 476 cmake_parse_arguments(TEST "" "SUBDIR" "OBJECTS;DEPS;LINK_FLAGS" "" ${ARGN}) 477 set(output_dir ${CMAKE_CURRENT_BINARY_DIR}) 478 if(TEST_SUBDIR) 479 set(output_dir "${output_dir}/${TEST_SUBDIR}") 480 endif() 481 set(output_dir "${output_dir}/${CMAKE_CFG_INTDIR}") 482 file(MAKE_DIRECTORY "${output_dir}") 483 set(output_bin "${output_dir}/${test_name}") 484 if(MSVC) 485 set(output_bin "${output_bin}.exe") 486 endif() 487 488 # Use host compiler in a standalone build, and just-built Clang otherwise. 489 if(NOT COMPILER_RT_STANDALONE_BUILD) 490 list(APPEND TEST_DEPS clang) 491 endif() 492 493 get_target_flags_for_arch(${arch} TARGET_LINK_FLAGS) 494 list(APPEND TEST_LINK_FLAGS ${TARGET_LINK_FLAGS}) 495 496 # If we're not on MSVC, include the linker flags from CMAKE but override them 497 # with the provided link flags. This ensures that flags which are required to 498 # link programs at all are included, but the changes needed for the test 499 # trump. With MSVC we can't do that because CMake is set up to run link.exe 500 # when linking, not the compiler. Here, we hack it to use the compiler 501 # because we want to use -fsanitize flags. 502 503 # Only add CMAKE_EXE_LINKER_FLAGS when in a standalone bulid. 504 # Or else CMAKE_EXE_LINKER_FLAGS contains flags for build compiler of Clang/llvm. 505 # This might not be the same as what the COMPILER_RT_TEST_COMPILER supports. 506 # eg: the build compiler use lld linker and we build clang with default ld linker 507 # then to be tested clang will complain about lld options like --color-diagnostics. 508 if(NOT MSVC AND COMPILER_RT_STANDALONE_BUILD) 509 set(TEST_LINK_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${TEST_LINK_FLAGS}") 510 separate_arguments(TEST_LINK_FLAGS) 511 endif() 512 if(NOT COMPILER_RT_STANDALONE_BUILD AND COMPILER_RT_HAS_LLD AND "lld" IN_LIST LLVM_ENABLE_PROJECTS) 513 # CMAKE_EXE_LINKER_FLAGS may contain -fuse=lld 514 # FIXME: -DLLVM_ENABLE_LLD=ON and -DLLVM_ENABLE_PROJECTS without lld case. 515 list(APPEND TEST_DEPS lld) 516 endif() 517 add_custom_command( 518 OUTPUT "${output_bin}" 519 COMMAND ${COMPILER_RT_TEST_CXX_COMPILER} ${TEST_OBJECTS} -o "${output_bin}" 520 ${TEST_LINK_FLAGS} 521 DEPENDS ${TEST_DEPS} 522 ) 523 add_custom_target(T${test_name} DEPENDS "${output_bin}") 524 set_target_properties(T${test_name} PROPERTIES FOLDER "Compiler-RT Tests") 525 526 # Make the test suite depend on the binary. 527 add_dependencies(${test_suite} T${test_name}) 528endfunction() 529 530macro(add_compiler_rt_resource_file target_name file_name component) 531 set(src_file "${CMAKE_CURRENT_SOURCE_DIR}/${file_name}") 532 set(dst_file "${COMPILER_RT_OUTPUT_DIR}/share/${file_name}") 533 add_custom_command(OUTPUT ${dst_file} 534 DEPENDS ${src_file} 535 COMMAND ${CMAKE_COMMAND} -E copy_if_different ${src_file} ${dst_file} 536 COMMENT "Copying ${file_name}...") 537 add_custom_target(${target_name} DEPENDS ${dst_file}) 538 # Install in Clang resource directory. 539 install(FILES ${file_name} 540 DESTINATION ${COMPILER_RT_INSTALL_DATA_DIR} 541 COMPONENT ${component}) 542 add_dependencies(${component} ${target_name}) 543 544 set_target_properties(${target_name} PROPERTIES FOLDER "Compiler-RT Misc") 545endmacro() 546 547macro(add_compiler_rt_script name) 548 set(dst ${COMPILER_RT_EXEC_OUTPUT_DIR}/${name}) 549 set(src ${CMAKE_CURRENT_SOURCE_DIR}/${name}) 550 add_custom_command(OUTPUT ${dst} 551 DEPENDS ${src} 552 COMMAND ${CMAKE_COMMAND} -E copy_if_different ${src} ${dst} 553 COMMENT "Copying ${name}...") 554 add_custom_target(${name} DEPENDS ${dst}) 555 install(FILES ${dst} 556 PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE 557 DESTINATION ${COMPILER_RT_INSTALL_BINARY_DIR}) 558endmacro(add_compiler_rt_script src name) 559 560# Builds custom version of libc++ and installs it in <prefix>. 561# Can be used to build sanitized versions of libc++ for running unit tests. 562# add_custom_libcxx(<name> <prefix> 563# DEPS <list of build deps> 564# CFLAGS <list of compile flags> 565# USE_TOOLCHAIN) 566macro(add_custom_libcxx name prefix) 567 if(NOT COMPILER_RT_LIBCXX_PATH) 568 message(FATAL_ERROR "libcxx not found!") 569 endif() 570 if(NOT COMPILER_RT_LIBCXXABI_PATH) 571 message(FATAL_ERROR "libcxxabi not found!") 572 endif() 573 574 cmake_parse_arguments(LIBCXX "USE_TOOLCHAIN" "" "DEPS;CFLAGS;CMAKE_ARGS" ${ARGN}) 575 576 if(LIBCXX_USE_TOOLCHAIN) 577 set(compiler_args -DCMAKE_C_COMPILER=${COMPILER_RT_TEST_COMPILER} 578 -DCMAKE_CXX_COMPILER=${COMPILER_RT_TEST_CXX_COMPILER}) 579 if(NOT COMPILER_RT_STANDALONE_BUILD AND NOT LLVM_RUNTIMES_BUILD) 580 set(toolchain_deps $<TARGET_FILE:clang>) 581 set(force_deps DEPENDS $<TARGET_FILE:clang>) 582 endif() 583 else() 584 set(compiler_args -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER} 585 -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}) 586 endif() 587 588 add_custom_target(${name}-clear 589 COMMAND ${CMAKE_COMMAND} -E remove_directory ${prefix} 590 COMMENT "Clobbering ${name} build directories" 591 USES_TERMINAL 592 ) 593 set_target_properties(${name}-clear PROPERTIES FOLDER "Compiler-RT Misc") 594 595 add_custom_command( 596 OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp 597 DEPENDS ${LIBCXX_DEPS} ${toolchain_deps} 598 COMMAND ${CMAKE_COMMAND} -E touch ${prefix}/CMakeCache.txt 599 COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp 600 COMMENT "Clobbering bootstrap build directories" 601 ) 602 603 add_custom_target(${name}-clobber 604 DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp) 605 set_target_properties(${name}-clobber PROPERTIES FOLDER "Compiler-RT Misc") 606 607 set(PASSTHROUGH_VARIABLES 608 CMAKE_C_COMPILER_TARGET 609 CMAKE_CXX_COMPILER_TARGET 610 CMAKE_SHARED_LINKER_FLAGS 611 CMAKE_MODULE_LINKER_FLAGS 612 CMAKE_EXE_LINKER_FLAGS 613 CMAKE_INSTALL_PREFIX 614 CMAKE_MAKE_PROGRAM 615 CMAKE_LINKER 616 CMAKE_AR 617 CMAKE_RANLIB 618 CMAKE_NM 619 CMAKE_OBJCOPY 620 CMAKE_OBJDUMP 621 CMAKE_STRIP 622 CMAKE_READELF 623 CMAKE_SYSROOT 624 LIBCXX_HAS_MUSL_LIBC 625 LIBCXX_HAS_PTHREAD_LIB 626 LIBCXX_HAS_RT_LIB 627 LIBCXXABI_HAS_PTHREAD_LIB 628 PYTHON_EXECUTABLE 629 Python3_EXECUTABLE 630 Python2_EXECUTABLE 631 CMAKE_SYSTEM_NAME) 632 foreach(variable ${PASSTHROUGH_VARIABLES}) 633 get_property(is_value_set CACHE ${variable} PROPERTY VALUE SET) 634 if(${is_value_set}) 635 get_property(value CACHE ${variable} PROPERTY VALUE) 636 list(APPEND CMAKE_PASSTHROUGH_VARIABLES -D${variable}=${value}) 637 endif() 638 endforeach() 639 640 string(REPLACE ";" " " LIBCXX_C_FLAGS "${LIBCXX_CFLAGS}") 641 get_property(C_FLAGS CACHE CMAKE_C_FLAGS PROPERTY VALUE) 642 set(LIBCXX_C_FLAGS "${LIBCXX_C_FLAGS} ${C_FLAGS}") 643 644 string(REPLACE ";" " " LIBCXX_CXX_FLAGS "${LIBCXX_CFLAGS}") 645 get_property(CXX_FLAGS CACHE CMAKE_CXX_FLAGS PROPERTY VALUE) 646 set(LIBCXX_CXX_FLAGS "${LIBCXX_CXX_FLAGS} ${CXX_FLAGS}") 647 648 ExternalProject_Add(${name} 649 DEPENDS ${name}-clobber ${LIBCXX_DEPS} 650 PREFIX ${CMAKE_CURRENT_BINARY_DIR}/${name} 651 SOURCE_DIR ${LLVM_MAIN_SRC_DIR}/../runtimes 652 BINARY_DIR ${prefix} 653 CMAKE_ARGS ${CMAKE_PASSTHROUGH_VARIABLES} 654 ${compiler_args} 655 -DCMAKE_C_FLAGS=${LIBCXX_C_FLAGS} 656 -DCMAKE_CXX_FLAGS=${LIBCXX_CXX_FLAGS} 657 -DCMAKE_BUILD_TYPE=Release 658 -DCMAKE_TRY_COMPILE_TARGET_TYPE=STATIC_LIBRARY 659 -DLLVM_PATH=${LLVM_MAIN_SRC_DIR} 660 -DLLVM_ENABLE_RUNTIMES=libcxx|libcxxabi 661 -DLIBCXXABI_ENABLE_SHARED=OFF 662 -DLIBCXXABI_HERMETIC_STATIC_LIBRARY=ON 663 -DLIBCXXABI_INCLUDE_TESTS=OFF 664 -DLIBCXX_CXX_ABI=libcxxabi 665 -DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF 666 -DLIBCXX_ENABLE_SHARED=OFF 667 -DLIBCXX_HERMETIC_STATIC_LIBRARY=ON 668 -DLIBCXX_INCLUDE_BENCHMARKS=OFF 669 -DLIBCXX_INCLUDE_TESTS=OFF 670 -DLIBCXX_ENABLE_STATIC_ABI_LIBRARY=ON 671 ${LIBCXX_CMAKE_ARGS} 672 INSTALL_COMMAND "" 673 STEP_TARGETS configure build 674 BUILD_ALWAYS 1 675 USES_TERMINAL_CONFIGURE 1 676 USES_TERMINAL_BUILD 1 677 USES_TERMINAL_INSTALL 1 678 LIST_SEPARATOR | 679 EXCLUDE_FROM_ALL TRUE 680 BUILD_BYPRODUCTS "${prefix}/lib/libc++.a" "${prefix}/lib/libc++abi.a" 681 ) 682 683 if (CMAKE_GENERATOR MATCHES "Make") 684 set(run_clean "$(MAKE)" "-C" "${prefix}" "clean") 685 else() 686 set(run_clean ${CMAKE_COMMAND} --build ${prefix} --target clean 687 --config "$<CONFIG>") 688 endif() 689 690 ExternalProject_Add_Step(${name} clean 691 COMMAND ${run_clean} 692 COMMENT "Cleaning ${name}..." 693 DEPENDEES configure 694 ${force_deps} 695 WORKING_DIRECTORY ${prefix} 696 EXCLUDE_FROM_MAIN 1 697 USES_TERMINAL 1 698 ) 699 ExternalProject_Add_StepTargets(${name} clean) 700 701 if(LIBCXX_USE_TOOLCHAIN) 702 add_dependencies(${name}-clean ${name}-clobber) 703 set_target_properties(${name}-clean PROPERTIES 704 SOURCES ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp) 705 endif() 706endmacro() 707 708function(rt_externalize_debuginfo name) 709 if(NOT COMPILER_RT_EXTERNALIZE_DEBUGINFO) 710 return() 711 endif() 712 713 if(NOT COMPILER_RT_EXTERNALIZE_DEBUGINFO_SKIP_STRIP) 714 set(strip_command COMMAND xcrun strip -Sl $<TARGET_FILE:${name}>) 715 endif() 716 717 if(APPLE) 718 if(CMAKE_CXX_FLAGS MATCHES "-flto" 719 OR CMAKE_CXX_FLAGS_${uppercase_CMAKE_BUILD_TYPE} MATCHES "-flto") 720 721 set(lto_object ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/${name}-lto.o) 722 set_property(TARGET ${name} APPEND_STRING PROPERTY 723 LINK_FLAGS " -Wl,-object_path_lto -Wl,${lto_object}") 724 endif() 725 add_custom_command(TARGET ${name} POST_BUILD 726 COMMAND xcrun dsymutil $<TARGET_FILE:${name}> 727 ${strip_command}) 728 else() 729 message(FATAL_ERROR "COMPILER_RT_EXTERNALIZE_DEBUGINFO isn't implemented for non-darwin platforms!") 730 endif() 731endfunction() 732 733 734# Configure lit configuration files, including compiler-rt specific variables. 735function(configure_compiler_rt_lit_site_cfg input output) 736 set_llvm_build_mode() 737 738 get_compiler_rt_output_dir(${COMPILER_RT_DEFAULT_TARGET_ARCH} output_dir) 739 740 string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} COMPILER_RT_RESOLVED_TEST_COMPILER ${COMPILER_RT_TEST_COMPILER}) 741 string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} COMPILER_RT_RESOLVED_LIBRARY_OUTPUT_DIR ${output_dir}) 742 743 configure_lit_site_cfg(${input} ${output}) 744endfunction() 745