1 include(LLVMProcessSources) 2 include(LLVM-Config) 3 include(DetermineGCCCompatible) 4 5 function(llvm_update_compile_flags name) 6 get_property(sources TARGET ${name} PROPERTY SOURCES) 7 if("${sources}" MATCHES "\\.c(;|$)") 8 set(update_src_props ON) 9 endif() 10 11 # LLVM_REQUIRES_EH is an internal flag that individual targets can use to 12 # force EH 13 if(LLVM_REQUIRES_EH OR LLVM_ENABLE_EH) 14 if(NOT (LLVM_REQUIRES_RTTI OR LLVM_ENABLE_RTTI)) 15 message(AUTHOR_WARNING "Exception handling requires RTTI. Enabling RTTI for ${name}") 16 set(LLVM_REQUIRES_RTTI ON) 17 endif() 18 if(MSVC) 19 list(APPEND LLVM_COMPILE_FLAGS "/EHsc") 20 endif() 21 else() 22 if(LLVM_COMPILER_IS_GCC_COMPATIBLE) 23 list(APPEND LLVM_COMPILE_FLAGS "-fno-exceptions") 24 elseif(MSVC) 25 list(APPEND LLVM_COMPILE_DEFINITIONS _HAS_EXCEPTIONS=0) 26 list(APPEND LLVM_COMPILE_FLAGS "/EHs-c-") 27 endif() 28 endif() 29 30 # LLVM_REQUIRES_RTTI is an internal flag that individual 31 # targets can use to force RTTI 32 set(LLVM_CONFIG_HAS_RTTI YES CACHE INTERNAL "") 33 if(NOT (LLVM_REQUIRES_RTTI OR LLVM_ENABLE_RTTI)) 34 set(LLVM_CONFIG_HAS_RTTI NO CACHE INTERNAL "") 35 list(APPEND LLVM_COMPILE_DEFINITIONS GTEST_HAS_RTTI=0) 36 if (LLVM_COMPILER_IS_GCC_COMPATIBLE) 37 list(APPEND LLVM_COMPILE_FLAGS "-fno-rtti") 38 elseif (MSVC) 39 list(APPEND LLVM_COMPILE_FLAGS "/GR-") 40 endif () 41 elseif(MSVC) 42 list(APPEND LLVM_COMPILE_FLAGS "/GR") 43 endif() 44 45 # Assume that; 46 # - LLVM_COMPILE_FLAGS is list. 47 # - PROPERTY COMPILE_FLAGS is string. 48 string(REPLACE ";" " " target_compile_flags " ${LLVM_COMPILE_FLAGS}") 49 50 if(update_src_props) 51 foreach(fn ${sources}) 52 get_filename_component(suf ${fn} EXT) 53 if("${suf}" STREQUAL ".cpp") 54 set_property(SOURCE ${fn} APPEND_STRING PROPERTY 55 COMPILE_FLAGS "${target_compile_flags}") 56 endif() 57 endforeach() 58 else() 59 # Update target props, since all sources are C++. 60 set_property(TARGET ${name} APPEND_STRING PROPERTY 61 COMPILE_FLAGS "${target_compile_flags}") 62 endif() 63 64 set_property(TARGET ${name} APPEND PROPERTY COMPILE_DEFINITIONS ${LLVM_COMPILE_DEFINITIONS}) 65 endfunction() 66 67 function(add_llvm_symbol_exports target_name export_file) 68 if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin") 69 set(native_export_file "${target_name}.exports") 70 add_custom_command(OUTPUT ${native_export_file} 71 COMMAND sed -e "s/^/_/" < ${export_file} > ${native_export_file} 72 DEPENDS ${export_file} 73 VERBATIM 74 COMMENT "Creating export file for ${target_name}") 75 set_property(TARGET ${target_name} APPEND_STRING PROPERTY 76 LINK_FLAGS " -Wl,-exported_symbols_list,${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}") 77 elseif(${CMAKE_SYSTEM_NAME} MATCHES "AIX") 78 set_property(TARGET ${target_name} APPEND_STRING PROPERTY 79 LINK_FLAGS " -Wl,-bE:${export_file}") 80 elseif(LLVM_HAVE_LINK_VERSION_SCRIPT) 81 # Gold and BFD ld require a version script rather than a plain list. 82 set(native_export_file "${target_name}.exports") 83 # FIXME: Don't write the "local:" line on OpenBSD. 84 # in the export file, also add a linker script to version LLVM symbols (form: LLVM_N.M) 85 add_custom_command(OUTPUT ${native_export_file} 86 COMMAND echo "LLVM_${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR} {" > ${native_export_file} 87 COMMAND grep -q "[[:alnum:]]" ${export_file} && echo " global:" >> ${native_export_file} || : 88 COMMAND sed -e "s/$/;/" -e "s/^/ /" < ${export_file} >> ${native_export_file} 89 COMMAND echo " local: *;" >> ${native_export_file} 90 COMMAND echo "};" >> ${native_export_file} 91 DEPENDS ${export_file} 92 VERBATIM 93 COMMENT "Creating export file for ${target_name}") 94 if (${LLVM_LINKER_IS_SOLARISLD}) 95 set_property(TARGET ${target_name} APPEND_STRING PROPERTY 96 LINK_FLAGS " -Wl,-M,${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}") 97 else() 98 set_property(TARGET ${target_name} APPEND_STRING PROPERTY 99 LINK_FLAGS " -Wl,--version-script,${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}") 100 endif() 101 else() 102 set(native_export_file "${target_name}.def") 103 104 add_custom_command(OUTPUT ${native_export_file} 105 COMMAND ${PYTHON_EXECUTABLE} -c "import sys;print(''.join(['EXPORTS\\n']+sys.stdin.readlines(),))" 106 < ${export_file} > ${native_export_file} 107 DEPENDS ${export_file} 108 VERBATIM 109 COMMENT "Creating export file for ${target_name}") 110 set(export_file_linker_flag "${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}") 111 if(MSVC) 112 set(export_file_linker_flag "/DEF:\"${export_file_linker_flag}\"") 113 endif() 114 set_property(TARGET ${target_name} APPEND_STRING PROPERTY 115 LINK_FLAGS " ${export_file_linker_flag}") 116 endif() 117 118 add_custom_target(${target_name}_exports DEPENDS ${native_export_file}) 119 set_target_properties(${target_name}_exports PROPERTIES FOLDER "Misc") 120 121 get_property(srcs TARGET ${target_name} PROPERTY SOURCES) 122 foreach(src ${srcs}) 123 get_filename_component(extension ${src} EXT) 124 if(extension STREQUAL ".cpp") 125 set(first_source_file ${src}) 126 break() 127 endif() 128 endforeach() 129 130 # Force re-linking when the exports file changes. Actually, it 131 # forces recompilation of the source file. The LINK_DEPENDS target 132 # property only works for makefile-based generators. 133 # FIXME: This is not safe because this will create the same target 134 # ${native_export_file} in several different file: 135 # - One where we emitted ${target_name}_exports 136 # - One where we emitted the build command for the following object. 137 # set_property(SOURCE ${first_source_file} APPEND PROPERTY 138 # OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}) 139 140 set_property(DIRECTORY APPEND 141 PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${native_export_file}) 142 143 add_dependencies(${target_name} ${target_name}_exports) 144 145 # Add dependency to *_exports later -- CMake issue 14747 146 list(APPEND LLVM_COMMON_DEPENDS ${target_name}_exports) 147 set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE) 148 endfunction(add_llvm_symbol_exports) 149 150 if(NOT WIN32 AND NOT APPLE) 151 # Detect what linker we have here 152 execute_process( 153 COMMAND ${CMAKE_C_COMPILER} -Wl,--version 154 OUTPUT_VARIABLE stdout 155 ERROR_VARIABLE stderr 156 ) 157 set(LLVM_LINKER_DETECTED ON) 158 if("${stdout}" MATCHES "GNU gold") 159 set(LLVM_LINKER_IS_GOLD ON) 160 message(STATUS "Linker detection: GNU Gold") 161 elseif("${stdout}" MATCHES "^LLD") 162 set(LLVM_LINKER_IS_LLD ON) 163 message(STATUS "Linker detection: LLD") 164 elseif("${stdout}" MATCHES "GNU ld") 165 set(LLVM_LINKER_IS_GNULD ON) 166 message(STATUS "Linker detection: GNU ld") 167 elseif("${stderr}" MATCHES "Solaris Link Editors") 168 set(LLVM_LINKER_IS_SOLARISLD ON) 169 message(STATUS "Linker detection: Solaris ld") 170 else() 171 set(LLVM_LINKER_DETECTED OFF) 172 message(STATUS "Linker detection: unknown") 173 endif() 174 endif() 175 176 function(add_link_opts target_name) 177 # Don't use linker optimizations in debug builds since it slows down the 178 # linker in a context where the optimizations are not important. 179 if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG") 180 181 # Pass -O3 to the linker. This enabled different optimizations on different 182 # linkers. 183 if(NOT (${CMAKE_SYSTEM_NAME} MATCHES "Darwin|SunOS|AIX" OR WIN32)) 184 set_property(TARGET ${target_name} APPEND_STRING PROPERTY 185 LINK_FLAGS " -Wl,-O3") 186 endif() 187 188 if(LLVM_LINKER_IS_GOLD) 189 # With gold gc-sections is always safe. 190 set_property(TARGET ${target_name} APPEND_STRING PROPERTY 191 LINK_FLAGS " -Wl,--gc-sections") 192 # Note that there is a bug with -Wl,--icf=safe so it is not safe 193 # to enable. See https://sourceware.org/bugzilla/show_bug.cgi?id=17704. 194 endif() 195 196 if(NOT LLVM_NO_DEAD_STRIP) 197 if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin") 198 # ld64's implementation of -dead_strip breaks tools that use plugins. 199 set_property(TARGET ${target_name} APPEND_STRING PROPERTY 200 LINK_FLAGS " -Wl,-dead_strip") 201 elseif(${CMAKE_SYSTEM_NAME} MATCHES "SunOS") 202 set_property(TARGET ${target_name} APPEND_STRING PROPERTY 203 LINK_FLAGS " -Wl,-z -Wl,discard-unused=sections") 204 elseif(NOT WIN32 AND NOT LLVM_LINKER_IS_GOLD) 205 # Object files are compiled with -ffunction-data-sections. 206 # Versions of bfd ld < 2.23.1 have a bug in --gc-sections that breaks 207 # tools that use plugins. Always pass --gc-sections once we require 208 # a newer linker. 209 set_property(TARGET ${target_name} APPEND_STRING PROPERTY 210 LINK_FLAGS " -Wl,--gc-sections") 211 endif() 212 endif() 213 endif() 214 endfunction(add_link_opts) 215 216 # Set each output directory according to ${CMAKE_CONFIGURATION_TYPES}. 217 # Note: Don't set variables CMAKE_*_OUTPUT_DIRECTORY any more, 218 # or a certain builder, for eaxample, msbuild.exe, would be confused. 219 function(set_output_directory target) 220 cmake_parse_arguments(ARG "" "BINARY_DIR;LIBRARY_DIR" "" ${ARGN}) 221 222 # module_dir -- corresponding to LIBRARY_OUTPUT_DIRECTORY. 223 # It affects output of add_library(MODULE). 224 if(WIN32 OR CYGWIN) 225 # DLL platform 226 set(module_dir ${ARG_BINARY_DIR}) 227 else() 228 set(module_dir ${ARG_LIBRARY_DIR}) 229 endif() 230 if(NOT "${CMAKE_CFG_INTDIR}" STREQUAL ".") 231 foreach(build_mode ${CMAKE_CONFIGURATION_TYPES}) 232 string(TOUPPER "${build_mode}" CONFIG_SUFFIX) 233 if(ARG_BINARY_DIR) 234 string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} bi ${ARG_BINARY_DIR}) 235 set_target_properties(${target} PROPERTIES "RUNTIME_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${bi}) 236 endif() 237 if(ARG_LIBRARY_DIR) 238 string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} li ${ARG_LIBRARY_DIR}) 239 set_target_properties(${target} PROPERTIES "ARCHIVE_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${li}) 240 endif() 241 if(module_dir) 242 string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} mi ${module_dir}) 243 set_target_properties(${target} PROPERTIES "LIBRARY_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${mi}) 244 endif() 245 endforeach() 246 else() 247 if(ARG_BINARY_DIR) 248 set_target_properties(${target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${ARG_BINARY_DIR}) 249 endif() 250 if(ARG_LIBRARY_DIR) 251 set_target_properties(${target} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${ARG_LIBRARY_DIR}) 252 endif() 253 if(module_dir) 254 set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${module_dir}) 255 endif() 256 endif() 257 endfunction() 258 259 # If on Windows and building with MSVC, add the resource script containing the 260 # VERSIONINFO data to the project. This embeds version resource information 261 # into the output .exe or .dll. 262 # TODO: Enable for MinGW Windows builds too. 263 # 264 function(add_windows_version_resource_file OUT_VAR) 265 set(sources ${ARGN}) 266 if (MSVC) 267 set(resource_file ${LLVM_SOURCE_DIR}/resources/windows_version_resource.rc) 268 if(EXISTS ${resource_file}) 269 set(sources ${sources} ${resource_file}) 270 source_group("Resource Files" ${resource_file}) 271 set(windows_resource_file ${resource_file} PARENT_SCOPE) 272 endif() 273 endif(MSVC) 274 275 set(${OUT_VAR} ${sources} PARENT_SCOPE) 276 endfunction(add_windows_version_resource_file) 277 278 # set_windows_version_resource_properties(name resource_file... 279 # VERSION_MAJOR int 280 # Optional major version number (defaults to LLVM_VERSION_MAJOR) 281 # VERSION_MINOR int 282 # Optional minor version number (defaults to LLVM_VERSION_MINOR) 283 # VERSION_PATCHLEVEL int 284 # Optional patchlevel version number (defaults to LLVM_VERSION_PATCH) 285 # VERSION_STRING 286 # Optional version string (defaults to PACKAGE_VERSION) 287 # PRODUCT_NAME 288 # Optional product name string (defaults to "LLVM") 289 # ) 290 function(set_windows_version_resource_properties name resource_file) 291 cmake_parse_arguments(ARG 292 "" 293 "VERSION_MAJOR;VERSION_MINOR;VERSION_PATCHLEVEL;VERSION_STRING;PRODUCT_NAME" 294 "" 295 ${ARGN}) 296 297 if (NOT DEFINED ARG_VERSION_MAJOR) 298 set(ARG_VERSION_MAJOR ${LLVM_VERSION_MAJOR}) 299 endif() 300 301 if (NOT DEFINED ARG_VERSION_MINOR) 302 set(ARG_VERSION_MINOR ${LLVM_VERSION_MINOR}) 303 endif() 304 305 if (NOT DEFINED ARG_VERSION_PATCHLEVEL) 306 set(ARG_VERSION_PATCHLEVEL ${LLVM_VERSION_PATCH}) 307 endif() 308 309 if (NOT DEFINED ARG_VERSION_STRING) 310 set(ARG_VERSION_STRING ${PACKAGE_VERSION}) 311 endif() 312 313 if (NOT DEFINED ARG_PRODUCT_NAME) 314 set(ARG_PRODUCT_NAME "LLVM") 315 endif() 316 317 set_property(SOURCE ${resource_file} 318 PROPERTY COMPILE_FLAGS /nologo) 319 set_property(SOURCE ${resource_file} 320 PROPERTY COMPILE_DEFINITIONS 321 "RC_VERSION_FIELD_1=${ARG_VERSION_MAJOR}" 322 "RC_VERSION_FIELD_2=${ARG_VERSION_MINOR}" 323 "RC_VERSION_FIELD_3=${ARG_VERSION_PATCHLEVEL}" 324 "RC_VERSION_FIELD_4=0" 325 "RC_FILE_VERSION=\"${ARG_VERSION_STRING}\"" 326 "RC_INTERNAL_NAME=\"${name}\"" 327 "RC_PRODUCT_NAME=\"${ARG_PRODUCT_NAME}\"" 328 "RC_PRODUCT_VERSION=\"${ARG_VERSION_STRING}\"") 329 endfunction(set_windows_version_resource_properties) 330 331 # llvm_add_library(name sources... 332 # SHARED;STATIC 333 # STATIC by default w/o BUILD_SHARED_LIBS. 334 # SHARED by default w/ BUILD_SHARED_LIBS. 335 # OBJECT 336 # Also create an OBJECT library target. Default if STATIC && SHARED. 337 # MODULE 338 # Target ${name} might not be created on unsupported platforms. 339 # Check with "if(TARGET ${name})". 340 # DISABLE_LLVM_LINK_LLVM_DYLIB 341 # Do not link this library to libLLVM, even if 342 # LLVM_LINK_LLVM_DYLIB is enabled. 343 # OUTPUT_NAME name 344 # Corresponds to OUTPUT_NAME in target properties. 345 # DEPENDS targets... 346 # Same semantics as add_dependencies(). 347 # LINK_COMPONENTS components... 348 # Same as the variable LLVM_LINK_COMPONENTS. 349 # LINK_LIBS lib_targets... 350 # Same semantics as target_link_libraries(). 351 # ADDITIONAL_HEADERS 352 # May specify header files for IDE generators. 353 # SONAME 354 # Should set SONAME link flags and create symlinks 355 # PLUGIN_TOOL 356 # The tool (i.e. cmake target) that this plugin will link against 357 # ) 358 function(llvm_add_library name) 359 cmake_parse_arguments(ARG 360 "MODULE;SHARED;STATIC;OBJECT;DISABLE_LLVM_LINK_LLVM_DYLIB;SONAME" 361 "OUTPUT_NAME;PLUGIN_TOOL" 362 "ADDITIONAL_HEADERS;DEPENDS;LINK_COMPONENTS;LINK_LIBS;OBJLIBS" 363 ${ARGN}) 364 list(APPEND LLVM_COMMON_DEPENDS ${ARG_DEPENDS}) 365 if(ARG_ADDITIONAL_HEADERS) 366 # Pass through ADDITIONAL_HEADERS. 367 set(ARG_ADDITIONAL_HEADERS ADDITIONAL_HEADERS ${ARG_ADDITIONAL_HEADERS}) 368 endif() 369 if(ARG_OBJLIBS) 370 set(ALL_FILES ${ARG_OBJLIBS}) 371 else() 372 llvm_process_sources(ALL_FILES ${ARG_UNPARSED_ARGUMENTS} ${ARG_ADDITIONAL_HEADERS}) 373 endif() 374 375 if(ARG_MODULE) 376 if(ARG_SHARED OR ARG_STATIC) 377 message(WARNING "MODULE with SHARED|STATIC doesn't make sense.") 378 endif() 379 # Plugins that link against a tool are allowed even when plugins in general are not 380 if(NOT LLVM_ENABLE_PLUGINS AND NOT (ARG_PLUGIN_TOOL AND LLVM_EXPORT_SYMBOLS_FOR_PLUGINS)) 381 message(STATUS "${name} ignored -- Loadable modules not supported on this platform.") 382 return() 383 endif() 384 else() 385 if(ARG_PLUGIN_TOOL) 386 message(WARNING "PLUGIN_TOOL without MODULE doesn't make sense.") 387 endif() 388 if(BUILD_SHARED_LIBS AND NOT ARG_STATIC) 389 set(ARG_SHARED TRUE) 390 endif() 391 if(NOT ARG_SHARED) 392 set(ARG_STATIC TRUE) 393 endif() 394 endif() 395 396 # Generate objlib 397 if((ARG_SHARED AND ARG_STATIC) OR ARG_OBJECT) 398 # Generate an obj library for both targets. 399 set(obj_name "obj.${name}") 400 add_library(${obj_name} OBJECT EXCLUDE_FROM_ALL 401 ${ALL_FILES} 402 ) 403 llvm_update_compile_flags(${obj_name}) 404 set(ALL_FILES "$<TARGET_OBJECTS:${obj_name}>") 405 406 # Do add_dependencies(obj) later due to CMake issue 14747. 407 list(APPEND objlibs ${obj_name}) 408 409 set_target_properties(${obj_name} PROPERTIES FOLDER "Object Libraries") 410 endif() 411 412 if(ARG_SHARED AND ARG_STATIC) 413 # static 414 set(name_static "${name}_static") 415 if(ARG_OUTPUT_NAME) 416 set(output_name OUTPUT_NAME "${ARG_OUTPUT_NAME}") 417 endif() 418 # DEPENDS has been appended to LLVM_COMMON_LIBS. 419 llvm_add_library(${name_static} STATIC 420 ${output_name} 421 OBJLIBS ${ALL_FILES} # objlib 422 LINK_LIBS ${ARG_LINK_LIBS} 423 LINK_COMPONENTS ${ARG_LINK_COMPONENTS} 424 ) 425 # FIXME: Add name_static to anywhere in TARGET ${name}'s PROPERTY. 426 set(ARG_STATIC) 427 endif() 428 429 if(ARG_MODULE) 430 add_library(${name} MODULE ${ALL_FILES}) 431 llvm_setup_rpath(${name}) 432 elseif(ARG_SHARED) 433 add_windows_version_resource_file(ALL_FILES ${ALL_FILES}) 434 add_library(${name} SHARED ${ALL_FILES}) 435 436 llvm_setup_rpath(${name}) 437 438 else() 439 add_library(${name} STATIC ${ALL_FILES}) 440 endif() 441 442 setup_dependency_debugging(${name} ${LLVM_COMMON_DEPENDS}) 443 444 if(DEFINED windows_resource_file) 445 set_windows_version_resource_properties(${name} ${windows_resource_file}) 446 set(windows_resource_file ${windows_resource_file} PARENT_SCOPE) 447 endif() 448 449 set_output_directory(${name} BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR} LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}) 450 # $<TARGET_OBJECTS> doesn't require compile flags. 451 if(NOT obj_name) 452 llvm_update_compile_flags(${name}) 453 endif() 454 add_link_opts( ${name} ) 455 if(ARG_OUTPUT_NAME) 456 set_target_properties(${name} 457 PROPERTIES 458 OUTPUT_NAME ${ARG_OUTPUT_NAME} 459 ) 460 endif() 461 462 if(ARG_MODULE) 463 set_target_properties(${name} PROPERTIES 464 PREFIX "" 465 SUFFIX ${LLVM_PLUGIN_EXT} 466 ) 467 endif() 468 469 if(ARG_SHARED) 470 if(WIN32) 471 set_target_properties(${name} PROPERTIES 472 PREFIX "" 473 ) 474 endif() 475 476 # Set SOVERSION on shared libraries that lack explicit SONAME 477 # specifier, on *nix systems that are not Darwin. 478 if(UNIX AND NOT APPLE AND NOT ARG_SONAME) 479 set_target_properties(${name} 480 PROPERTIES 481 # Since 4.0.0, the ABI version is indicated by the major version 482 SOVERSION ${LLVM_VERSION_MAJOR} 483 VERSION ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}${LLVM_VERSION_SUFFIX}) 484 endif() 485 endif() 486 487 if(ARG_MODULE OR ARG_SHARED) 488 # Do not add -Dname_EXPORTS to the command-line when building files in this 489 # target. Doing so is actively harmful for the modules build because it 490 # creates extra module variants, and not useful because we don't use these 491 # macros. 492 set_target_properties( ${name} PROPERTIES DEFINE_SYMBOL "" ) 493 494 if (LLVM_EXPORTED_SYMBOL_FILE) 495 add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} ) 496 endif() 497 endif() 498 499 if(ARG_SHARED AND UNIX) 500 if(NOT APPLE AND ARG_SONAME) 501 get_target_property(output_name ${name} OUTPUT_NAME) 502 if(${output_name} STREQUAL "output_name-NOTFOUND") 503 set(output_name ${name}) 504 endif() 505 set(library_name ${output_name}-${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}${LLVM_VERSION_SUFFIX}) 506 set(api_name ${output_name}-${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}${LLVM_VERSION_SUFFIX}) 507 set_target_properties(${name} PROPERTIES OUTPUT_NAME ${library_name}) 508 llvm_install_library_symlink(${api_name} ${library_name} SHARED 509 COMPONENT ${name} 510 ALWAYS_GENERATE) 511 llvm_install_library_symlink(${output_name} ${library_name} SHARED 512 COMPONENT ${name} 513 ALWAYS_GENERATE) 514 endif() 515 endif() 516 517 if(ARG_MODULE AND LLVM_EXPORT_SYMBOLS_FOR_PLUGINS AND ARG_PLUGIN_TOOL AND (WIN32 OR CYGWIN)) 518 # On DLL platforms symbols are imported from the tool by linking against it. 519 set(llvm_libs ${ARG_PLUGIN_TOOL}) 520 elseif (DEFINED LLVM_LINK_COMPONENTS OR DEFINED ARG_LINK_COMPONENTS) 521 if (LLVM_LINK_LLVM_DYLIB AND NOT ARG_DISABLE_LLVM_LINK_LLVM_DYLIB) 522 set(llvm_libs LLVM) 523 else() 524 llvm_map_components_to_libnames(llvm_libs 525 ${ARG_LINK_COMPONENTS} 526 ${LLVM_LINK_COMPONENTS} 527 ) 528 endif() 529 else() 530 # Components have not been defined explicitly in CMake, so add the 531 # dependency information for this library as defined by LLVMBuild. 532 # 533 # It would be nice to verify that we have the dependencies for this library 534 # name, but using get_property(... SET) doesn't suffice to determine if a 535 # property has been set to an empty value. 536 get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${name}) 537 endif() 538 539 if(ARG_STATIC) 540 set(libtype INTERFACE) 541 else() 542 # We can use PRIVATE since SO knows its dependent libs. 543 set(libtype PRIVATE) 544 endif() 545 546 target_link_libraries(${name} ${libtype} 547 ${ARG_LINK_LIBS} 548 ${lib_deps} 549 ${llvm_libs} 550 ) 551 552 if(LLVM_COMMON_DEPENDS) 553 add_dependencies(${name} ${LLVM_COMMON_DEPENDS}) 554 # Add dependencies also to objlibs. 555 # CMake issue 14747 -- add_dependencies() might be ignored to objlib's user. 556 foreach(objlib ${objlibs}) 557 add_dependencies(${objlib} ${LLVM_COMMON_DEPENDS}) 558 endforeach() 559 endif() 560 561 if(ARG_SHARED OR ARG_MODULE) 562 llvm_externalize_debuginfo(${name}) 563 endif() 564 endfunction() 565 566 macro(add_llvm_library name) 567 cmake_parse_arguments(ARG 568 "SHARED;BUILDTREE_ONLY" 569 "" 570 "" 571 ${ARGN}) 572 if( BUILD_SHARED_LIBS OR ARG_SHARED ) 573 llvm_add_library(${name} SHARED ${ARG_UNPARSED_ARGUMENTS}) 574 else() 575 llvm_add_library(${name} ${ARG_UNPARSED_ARGUMENTS}) 576 endif() 577 578 # Libraries that are meant to only be exposed via the build tree only are 579 # never installed and are only exported as a target in the special build tree 580 # config file. 581 if (NOT ARG_BUILDTREE_ONLY) 582 set_property( GLOBAL APPEND PROPERTY LLVM_LIBS ${name} ) 583 endif() 584 585 if( EXCLUDE_FROM_ALL ) 586 set_target_properties( ${name} PROPERTIES EXCLUDE_FROM_ALL ON) 587 elseif(ARG_BUILDTREE_ONLY) 588 set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS_BUILDTREE_ONLY ${name}) 589 else() 590 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ${name} STREQUAL "LTO" OR 591 (LLVM_LINK_LLVM_DYLIB AND ${name} STREQUAL "LLVM")) 592 set(install_dir lib${LLVM_LIBDIR_SUFFIX}) 593 if(ARG_SHARED OR BUILD_SHARED_LIBS) 594 if(WIN32 OR CYGWIN OR MINGW) 595 set(install_type RUNTIME) 596 set(install_dir bin) 597 else() 598 set(install_type LIBRARY) 599 endif() 600 else() 601 set(install_type ARCHIVE) 602 endif() 603 604 if(${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS OR 605 NOT LLVM_DISTRIBUTION_COMPONENTS) 606 set(export_to_llvmexports EXPORT LLVMExports) 607 set_property(GLOBAL PROPERTY LLVM_HAS_EXPORTS True) 608 endif() 609 610 install(TARGETS ${name} 611 ${export_to_llvmexports} 612 ${install_type} DESTINATION ${install_dir} 613 COMPONENT ${name}) 614 615 if (NOT CMAKE_CONFIGURATION_TYPES) 616 add_custom_target(install-${name} 617 DEPENDS ${name} 618 COMMAND "${CMAKE_COMMAND}" 619 -DCMAKE_INSTALL_COMPONENT=${name} 620 -P "${CMAKE_BINARY_DIR}/cmake_install.cmake") 621 endif() 622 endif() 623 set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name}) 624 endif() 625 set_target_properties(${name} PROPERTIES FOLDER "Libraries") 626 endmacro(add_llvm_library name) 627 628 macro(add_llvm_loadable_module name) 629 llvm_add_library(${name} MODULE ${ARGN}) 630 if(NOT TARGET ${name}) 631 # Add empty "phony" target 632 add_custom_target(${name}) 633 else() 634 if( EXCLUDE_FROM_ALL ) 635 set_target_properties( ${name} PROPERTIES EXCLUDE_FROM_ALL ON) 636 else() 637 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY) 638 if(WIN32 OR CYGWIN) 639 # DLL platform 640 set(dlldir "bin") 641 else() 642 set(dlldir "lib${LLVM_LIBDIR_SUFFIX}") 643 endif() 644 645 if(${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS OR 646 NOT LLVM_DISTRIBUTION_COMPONENTS) 647 set(export_to_llvmexports EXPORT LLVMExports) 648 set_property(GLOBAL PROPERTY LLVM_HAS_EXPORTS True) 649 endif() 650 651 install(TARGETS ${name} 652 ${export_to_llvmexports} 653 LIBRARY DESTINATION ${dlldir} 654 ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX}) 655 endif() 656 set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name}) 657 endif() 658 endif() 659 660 set_target_properties(${name} PROPERTIES FOLDER "Loadable modules") 661 endmacro(add_llvm_loadable_module name) 662 663 664 macro(add_llvm_executable name) 665 cmake_parse_arguments(ARG "DISABLE_LLVM_LINK_LLVM_DYLIB;IGNORE_EXTERNALIZE_DEBUGINFO;NO_INSTALL_RPATH" "" "DEPENDS" ${ARGN}) 666 llvm_process_sources( ALL_FILES ${ARG_UNPARSED_ARGUMENTS} ) 667 668 list(APPEND LLVM_COMMON_DEPENDS ${ARG_DEPENDS}) 669 670 # Generate objlib 671 if(LLVM_ENABLE_OBJLIB) 672 # Generate an obj library for both targets. 673 set(obj_name "obj.${name}") 674 add_library(${obj_name} OBJECT EXCLUDE_FROM_ALL 675 ${ALL_FILES} 676 ) 677 llvm_update_compile_flags(${obj_name}) 678 set(ALL_FILES "$<TARGET_OBJECTS:${obj_name}>") 679 680 set_target_properties(${obj_name} PROPERTIES FOLDER "Object Libraries") 681 endif() 682 683 add_windows_version_resource_file(ALL_FILES ${ALL_FILES}) 684 685 if(XCODE) 686 # Note: the dummy.cpp source file provides no definitions. However, 687 # it forces Xcode to properly link the static library. 688 list(APPEND ALL_FILES "${LLVM_MAIN_SRC_DIR}/cmake/dummy.cpp") 689 endif() 690 691 if( EXCLUDE_FROM_ALL ) 692 add_executable(${name} EXCLUDE_FROM_ALL ${ALL_FILES}) 693 else() 694 add_executable(${name} ${ALL_FILES}) 695 endif() 696 697 setup_dependency_debugging(${name} ${LLVM_COMMON_DEPENDS}) 698 699 if(NOT ARG_NO_INSTALL_RPATH) 700 llvm_setup_rpath(${name}) 701 endif() 702 703 if(DEFINED windows_resource_file) 704 set_windows_version_resource_properties(${name} ${windows_resource_file}) 705 endif() 706 707 # $<TARGET_OBJECTS> doesn't require compile flags. 708 if(NOT LLVM_ENABLE_OBJLIB) 709 llvm_update_compile_flags(${name}) 710 endif() 711 add_link_opts( ${name} ) 712 713 # Do not add -Dname_EXPORTS to the command-line when building files in this 714 # target. Doing so is actively harmful for the modules build because it 715 # creates extra module variants, and not useful because we don't use these 716 # macros. 717 set_target_properties( ${name} PROPERTIES DEFINE_SYMBOL "" ) 718 719 if (LLVM_EXPORTED_SYMBOL_FILE) 720 add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} ) 721 endif(LLVM_EXPORTED_SYMBOL_FILE) 722 723 if (LLVM_LINK_LLVM_DYLIB AND NOT ARG_DISABLE_LLVM_LINK_LLVM_DYLIB) 724 set(USE_SHARED USE_SHARED) 725 endif() 726 727 set(EXCLUDE_FROM_ALL OFF) 728 set_output_directory(${name} BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR} LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}) 729 llvm_config( ${name} ${USE_SHARED} ${LLVM_LINK_COMPONENTS} ) 730 if( LLVM_COMMON_DEPENDS ) 731 add_dependencies( ${name} ${LLVM_COMMON_DEPENDS} ) 732 endif( LLVM_COMMON_DEPENDS ) 733 734 if(NOT ARG_IGNORE_EXTERNALIZE_DEBUGINFO) 735 llvm_externalize_debuginfo(${name}) 736 endif() 737 if (LLVM_PTHREAD_LIB) 738 # libpthreads overrides some standard library symbols, so main 739 # executable must be linked with it in order to provide consistent 740 # API for all shared libaries loaded by this executable. 741 target_link_libraries(${name} ${LLVM_PTHREAD_LIB}) 742 endif() 743 endmacro(add_llvm_executable name) 744 745 function(export_executable_symbols target) 746 if (LLVM_EXPORTED_SYMBOL_FILE) 747 # The symbol file should contain the symbols we want the executable to 748 # export 749 set_target_properties(${target} PROPERTIES ENABLE_EXPORTS 1) 750 elseif (LLVM_EXPORT_SYMBOLS_FOR_PLUGINS) 751 # Extract the symbols to export from the static libraries that the 752 # executable links against. 753 set_target_properties(${target} PROPERTIES ENABLE_EXPORTS 1) 754 set(exported_symbol_file ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/${target}.symbols) 755 # We need to consider not just the direct link dependencies, but also the 756 # transitive link dependencies. Do this by starting with the set of direct 757 # dependencies, then the dependencies of those dependencies, and so on. 758 get_target_property(new_libs ${target} LINK_LIBRARIES) 759 set(link_libs ${new_libs}) 760 while(NOT "${new_libs}" STREQUAL "") 761 foreach(lib ${new_libs}) 762 if(TARGET ${lib}) 763 get_target_property(lib_type ${lib} TYPE) 764 if("${lib_type}" STREQUAL "STATIC_LIBRARY") 765 list(APPEND static_libs ${lib}) 766 else() 767 list(APPEND other_libs ${lib}) 768 endif() 769 get_target_property(transitive_libs ${lib} INTERFACE_LINK_LIBRARIES) 770 foreach(transitive_lib ${transitive_libs}) 771 list(FIND link_libs ${transitive_lib} idx) 772 if(TARGET ${transitive_lib} AND idx EQUAL -1) 773 list(APPEND newer_libs ${transitive_lib}) 774 list(APPEND link_libs ${transitive_lib}) 775 endif() 776 endforeach(transitive_lib) 777 endif() 778 endforeach(lib) 779 set(new_libs ${newer_libs}) 780 set(newer_libs "") 781 endwhile() 782 if (MSVC) 783 set(mangling microsoft) 784 else() 785 set(mangling itanium) 786 endif() 787 add_custom_command(OUTPUT ${exported_symbol_file} 788 COMMAND ${PYTHON_EXECUTABLE} ${LLVM_MAIN_SRC_DIR}/utils/extract_symbols.py --mangling=${mangling} ${static_libs} -o ${exported_symbol_file} 789 WORKING_DIRECTORY ${LLVM_LIBRARY_OUTPUT_INTDIR} 790 DEPENDS ${LLVM_MAIN_SRC_DIR}/utils/extract_symbols.py ${static_libs} 791 VERBATIM 792 COMMENT "Generating export list for ${target}") 793 add_llvm_symbol_exports( ${target} ${exported_symbol_file} ) 794 # If something links against this executable then we want a 795 # transitive link against only the libraries whose symbols 796 # we aren't exporting. 797 set_target_properties(${target} PROPERTIES INTERFACE_LINK_LIBRARIES "${other_libs}") 798 # The default import library suffix that cmake uses for cygwin/mingw is 799 # ".dll.a", but for clang.exe that causes a collision with libclang.dll, 800 # where the import libraries of both get named libclang.dll.a. Use a suffix 801 # of ".exe.a" to avoid this. 802 if(CYGWIN OR MINGW) 803 set_target_properties(${target} PROPERTIES IMPORT_SUFFIX ".exe.a") 804 endif() 805 elseif(NOT (WIN32 OR CYGWIN)) 806 # On Windows auto-exporting everything doesn't work because of the limit on 807 # the size of the exported symbol table, but on other platforms we can do 808 # it without any trouble. 809 set_target_properties(${target} PROPERTIES ENABLE_EXPORTS 1) 810 if (APPLE) 811 set_property(TARGET ${target} APPEND_STRING PROPERTY 812 LINK_FLAGS " -rdynamic") 813 endif() 814 endif() 815 endfunction() 816 817 if(NOT LLVM_TOOLCHAIN_TOOLS) 818 set (LLVM_TOOLCHAIN_TOOLS 819 llvm-ar 820 llvm-ranlib 821 llvm-lib 822 llvm-objdump 823 ) 824 endif() 825 826 macro(add_llvm_tool name) 827 if( NOT LLVM_BUILD_TOOLS ) 828 set(EXCLUDE_FROM_ALL ON) 829 endif() 830 add_llvm_executable(${name} ${ARGN}) 831 832 if ( ${name} IN_LIST LLVM_TOOLCHAIN_TOOLS OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY) 833 if( LLVM_BUILD_TOOLS ) 834 if(${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS OR 835 NOT LLVM_DISTRIBUTION_COMPONENTS) 836 set(export_to_llvmexports EXPORT LLVMExports) 837 set_property(GLOBAL PROPERTY LLVM_HAS_EXPORTS True) 838 endif() 839 840 install(TARGETS ${name} 841 ${export_to_llvmexports} 842 RUNTIME DESTINATION ${LLVM_TOOLS_INSTALL_DIR} 843 COMPONENT ${name}) 844 845 if (NOT CMAKE_CONFIGURATION_TYPES) 846 add_custom_target(install-${name} 847 DEPENDS ${name} 848 COMMAND "${CMAKE_COMMAND}" 849 -DCMAKE_INSTALL_COMPONENT=${name} 850 -P "${CMAKE_BINARY_DIR}/cmake_install.cmake") 851 endif() 852 endif() 853 endif() 854 if( LLVM_BUILD_TOOLS ) 855 set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name}) 856 endif() 857 set_target_properties(${name} PROPERTIES FOLDER "Tools") 858 endmacro(add_llvm_tool name) 859 860 861 macro(add_llvm_example name) 862 if( NOT LLVM_BUILD_EXAMPLES ) 863 set(EXCLUDE_FROM_ALL ON) 864 endif() 865 add_llvm_executable(${name} ${ARGN}) 866 if( LLVM_BUILD_EXAMPLES ) 867 install(TARGETS ${name} RUNTIME DESTINATION examples) 868 endif() 869 set_target_properties(${name} PROPERTIES FOLDER "Examples") 870 endmacro(add_llvm_example name) 871 872 # This is a macro that is used to create targets for executables that are needed 873 # for development, but that are not intended to be installed by default. 874 macro(add_llvm_utility name) 875 if ( NOT LLVM_BUILD_UTILS ) 876 set(EXCLUDE_FROM_ALL ON) 877 endif() 878 879 add_llvm_executable(${name} DISABLE_LLVM_LINK_LLVM_DYLIB ${ARGN}) 880 set_target_properties(${name} PROPERTIES FOLDER "Utils") 881 if( LLVM_INSTALL_UTILS AND LLVM_BUILD_UTILS ) 882 install (TARGETS ${name} 883 RUNTIME DESTINATION ${LLVM_UTILS_INSTALL_DIR} 884 COMPONENT ${name}) 885 if (NOT CMAKE_CONFIGURATION_TYPES) 886 add_custom_target(install-${name} 887 DEPENDS ${name} 888 COMMAND "${CMAKE_COMMAND}" 889 -DCMAKE_INSTALL_COMPONENT=${name} 890 -P "${CMAKE_BINARY_DIR}/cmake_install.cmake") 891 endif() 892 endif() 893 endmacro(add_llvm_utility name) 894 895 macro(add_llvm_fuzzer name) 896 cmake_parse_arguments(ARG "" "DUMMY_MAIN" "" ${ARGN}) 897 if( LLVM_LIB_FUZZING_ENGINE ) 898 set(LLVM_OPTIONAL_SOURCES ${ARG_DUMMY_MAIN}) 899 add_llvm_executable(${name} ${ARG_UNPARSED_ARGUMENTS}) 900 target_link_libraries(${name} ${LLVM_LIB_FUZZING_ENGINE}) 901 set_target_properties(${name} PROPERTIES FOLDER "Fuzzers") 902 elseif( LLVM_USE_SANITIZE_COVERAGE ) 903 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=fuzzer") 904 set(LLVM_OPTIONAL_SOURCES ${ARG_DUMMY_MAIN}) 905 add_llvm_executable(${name} ${ARG_UNPARSED_ARGUMENTS}) 906 set_target_properties(${name} PROPERTIES FOLDER "Fuzzers") 907 elseif( ARG_DUMMY_MAIN ) 908 add_llvm_executable(${name} ${ARG_DUMMY_MAIN} ${ARG_UNPARSED_ARGUMENTS}) 909 set_target_properties(${name} PROPERTIES FOLDER "Fuzzers") 910 endif() 911 endmacro() 912 913 macro(add_llvm_target target_name) 914 include_directories(BEFORE 915 ${CMAKE_CURRENT_BINARY_DIR} 916 ${CMAKE_CURRENT_SOURCE_DIR}) 917 add_llvm_library(LLVM${target_name} ${ARGN}) 918 set( CURRENT_LLVM_TARGET LLVM${target_name} ) 919 endmacro(add_llvm_target) 920 921 function(canonicalize_tool_name name output) 922 string(REPLACE "${CMAKE_CURRENT_SOURCE_DIR}/" "" nameStrip ${name}) 923 string(REPLACE "-" "_" nameUNDERSCORE ${nameStrip}) 924 string(TOUPPER ${nameUNDERSCORE} nameUPPER) 925 set(${output} "${nameUPPER}" PARENT_SCOPE) 926 endfunction(canonicalize_tool_name) 927 928 # Custom add_subdirectory wrapper 929 # Takes in a project name (i.e. LLVM), the subdirectory name, and an optional 930 # path if it differs from the name. 931 macro(add_llvm_subdirectory project type name) 932 set(add_llvm_external_dir "${ARGN}") 933 if("${add_llvm_external_dir}" STREQUAL "") 934 set(add_llvm_external_dir ${name}) 935 endif() 936 canonicalize_tool_name(${name} nameUPPER) 937 if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}/CMakeLists.txt) 938 # Treat it as in-tree subproject. 939 option(${project}_${type}_${nameUPPER}_BUILD 940 "Whether to build ${name} as part of ${project}" On) 941 mark_as_advanced(${project}_${type}_${name}_BUILD) 942 if(${project}_${type}_${nameUPPER}_BUILD) 943 add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir} ${add_llvm_external_dir}) 944 # Don't process it in add_llvm_implicit_projects(). 945 set(${project}_${type}_${nameUPPER}_BUILD OFF) 946 endif() 947 else() 948 set(LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR 949 "${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}" 950 CACHE PATH "Path to ${name} source directory") 951 set(${project}_${type}_${nameUPPER}_BUILD_DEFAULT ON) 952 if(NOT LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR OR NOT EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}) 953 set(${project}_${type}_${nameUPPER}_BUILD_DEFAULT OFF) 954 endif() 955 if("${LLVM_EXTERNAL_${nameUPPER}_BUILD}" STREQUAL "OFF") 956 set(${project}_${type}_${nameUPPER}_BUILD_DEFAULT OFF) 957 endif() 958 option(${project}_${type}_${nameUPPER}_BUILD 959 "Whether to build ${name} as part of LLVM" 960 ${${project}_${type}_${nameUPPER}_BUILD_DEFAULT}) 961 if (${project}_${type}_${nameUPPER}_BUILD) 962 if(EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}) 963 add_subdirectory(${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR} ${add_llvm_external_dir}) 964 elseif(NOT "${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}" STREQUAL "") 965 message(WARNING "Nonexistent directory for ${name}: ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}") 966 endif() 967 # FIXME: It'd be redundant. 968 set(${project}_${type}_${nameUPPER}_BUILD Off) 969 endif() 970 endif() 971 endmacro() 972 973 # Add external project that may want to be built as part of llvm such as Clang, 974 # lld, and Polly. This adds two options. One for the source directory of the 975 # project, which defaults to ${CMAKE_CURRENT_SOURCE_DIR}/${name}. Another to 976 # enable or disable building it with everything else. 977 # Additional parameter can be specified as the name of directory. 978 macro(add_llvm_external_project name) 979 add_llvm_subdirectory(LLVM TOOL ${name} ${ARGN}) 980 endmacro() 981 982 macro(add_llvm_tool_subdirectory name) 983 add_llvm_external_project(${name}) 984 endmacro(add_llvm_tool_subdirectory) 985 986 function(get_project_name_from_src_var var output) 987 string(REGEX MATCH "LLVM_EXTERNAL_(.*)_SOURCE_DIR" 988 MACHED_TOOL "${var}") 989 if(MACHED_TOOL) 990 set(${output} ${CMAKE_MATCH_1} PARENT_SCOPE) 991 else() 992 set(${output} PARENT_SCOPE) 993 endif() 994 endfunction() 995 996 function(create_subdirectory_options project type) 997 file(GLOB sub-dirs "${CMAKE_CURRENT_SOURCE_DIR}/*") 998 foreach(dir ${sub-dirs}) 999 if(IS_DIRECTORY "${dir}" AND EXISTS "${dir}/CMakeLists.txt") 1000 canonicalize_tool_name(${dir} name) 1001 option(${project}_${type}_${name}_BUILD 1002 "Whether to build ${name} as part of ${project}" On) 1003 mark_as_advanced(${project}_${type}_${name}_BUILD) 1004 endif() 1005 endforeach() 1006 endfunction(create_subdirectory_options) 1007 1008 function(create_llvm_tool_options) 1009 create_subdirectory_options(LLVM TOOL) 1010 endfunction(create_llvm_tool_options) 1011 1012 function(llvm_add_implicit_projects project) 1013 set(list_of_implicit_subdirs "") 1014 file(GLOB sub-dirs "${CMAKE_CURRENT_SOURCE_DIR}/*") 1015 foreach(dir ${sub-dirs}) 1016 if(IS_DIRECTORY "${dir}" AND EXISTS "${dir}/CMakeLists.txt") 1017 canonicalize_tool_name(${dir} name) 1018 if (${project}_TOOL_${name}_BUILD) 1019 get_filename_component(fn "${dir}" NAME) 1020 list(APPEND list_of_implicit_subdirs "${fn}") 1021 endif() 1022 endif() 1023 endforeach() 1024 1025 foreach(external_proj ${list_of_implicit_subdirs}) 1026 add_llvm_subdirectory(${project} TOOL "${external_proj}" ${ARGN}) 1027 endforeach() 1028 endfunction(llvm_add_implicit_projects) 1029 1030 function(add_llvm_implicit_projects) 1031 llvm_add_implicit_projects(LLVM) 1032 endfunction(add_llvm_implicit_projects) 1033 1034 # Generic support for adding a unittest. 1035 function(add_unittest test_suite test_name) 1036 if( NOT LLVM_BUILD_TESTS ) 1037 set(EXCLUDE_FROM_ALL ON) 1038 endif() 1039 1040 include_directories(${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest/include) 1041 include_directories(${LLVM_MAIN_SRC_DIR}/utils/unittest/googlemock/include) 1042 if (NOT LLVM_ENABLE_THREADS) 1043 list(APPEND LLVM_COMPILE_DEFINITIONS GTEST_HAS_PTHREAD=0) 1044 endif () 1045 1046 if (SUPPORTS_VARIADIC_MACROS_FLAG) 1047 list(APPEND LLVM_COMPILE_FLAGS "-Wno-variadic-macros") 1048 endif () 1049 # Some parts of gtest rely on this GNU extension, don't warn on it. 1050 if(SUPPORTS_GNU_ZERO_VARIADIC_MACRO_ARGUMENTS_FLAG) 1051 list(APPEND LLVM_COMPILE_FLAGS "-Wno-gnu-zero-variadic-macro-arguments") 1052 endif() 1053 1054 set(LLVM_REQUIRES_RTTI OFF) 1055 1056 list(APPEND LLVM_LINK_COMPONENTS Support) # gtest needs it for raw_ostream 1057 add_llvm_executable(${test_name} IGNORE_EXTERNALIZE_DEBUGINFO NO_INSTALL_RPATH ${ARGN}) 1058 set(outdir ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}) 1059 set_output_directory(${test_name} BINARY_DIR ${outdir} LIBRARY_DIR ${outdir}) 1060 # libpthreads overrides some standard library symbols, so main 1061 # executable must be linked with it in order to provide consistent 1062 # API for all shared libaries loaded by this executable. 1063 target_link_libraries(${test_name} gtest_main gtest ${LLVM_PTHREAD_LIB}) 1064 1065 add_dependencies(${test_suite} ${test_name}) 1066 get_target_property(test_suite_folder ${test_suite} FOLDER) 1067 if (NOT ${test_suite_folder} STREQUAL "NOTFOUND") 1068 set_property(TARGET ${test_name} PROPERTY FOLDER "${test_suite_folder}") 1069 endif () 1070 endfunction() 1071 1072 function(llvm_add_go_executable binary pkgpath) 1073 cmake_parse_arguments(ARG "ALL" "" "DEPENDS;GOFLAGS" ${ARGN}) 1074 1075 if(LLVM_BINDINGS MATCHES "go") 1076 # FIXME: This should depend only on the libraries Go needs. 1077 get_property(llvmlibs GLOBAL PROPERTY LLVM_LIBS) 1078 set(binpath ${CMAKE_BINARY_DIR}/bin/${binary}${CMAKE_EXECUTABLE_SUFFIX}) 1079 set(cc "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}") 1080 set(cxx "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1}") 1081 set(cppflags "") 1082 get_property(include_dirs DIRECTORY PROPERTY INCLUDE_DIRECTORIES) 1083 foreach(d ${include_dirs}) 1084 set(cppflags "${cppflags} -I${d}") 1085 endforeach(d) 1086 set(ldflags "${CMAKE_EXE_LINKER_FLAGS}") 1087 add_custom_command(OUTPUT ${binpath} 1088 COMMAND ${CMAKE_BINARY_DIR}/bin/llvm-go "go=${GO_EXECUTABLE}" "cc=${cc}" "cxx=${cxx}" "cppflags=${cppflags}" "ldflags=${ldflags}" "packages=${LLVM_GO_PACKAGES}" 1089 ${ARG_GOFLAGS} build -o ${binpath} ${pkgpath} 1090 DEPENDS llvm-config ${CMAKE_BINARY_DIR}/bin/llvm-go${CMAKE_EXECUTABLE_SUFFIX} 1091 ${llvmlibs} ${ARG_DEPENDS} 1092 COMMENT "Building Go executable ${binary}" 1093 VERBATIM) 1094 if (ARG_ALL) 1095 add_custom_target(${binary} ALL DEPENDS ${binpath}) 1096 else() 1097 add_custom_target(${binary} DEPENDS ${binpath}) 1098 endif() 1099 endif() 1100 endfunction() 1101 1102 # This function canonicalize the CMake variables passed by names 1103 # from CMake boolean to 0/1 suitable for passing into Python or C++, 1104 # in place. 1105 function(llvm_canonicalize_cmake_booleans) 1106 foreach(var ${ARGN}) 1107 if(${var}) 1108 set(${var} 1 PARENT_SCOPE) 1109 else() 1110 set(${var} 0 PARENT_SCOPE) 1111 endif() 1112 endforeach() 1113 endfunction(llvm_canonicalize_cmake_booleans) 1114 1115 # This function provides an automatic way to 'configure'-like generate a file 1116 # based on a set of common and custom variables, specifically targeting the 1117 # variables needed for the 'lit.site.cfg' files. This function bundles the 1118 # common variables that any Lit instance is likely to need, and custom 1119 # variables can be passed in. 1120 function(configure_lit_site_cfg site_in site_out) 1121 cmake_parse_arguments(ARG "" "" "MAIN_CONFIG;OUTPUT_MAPPING" ${ARGN}) 1122 1123 if ("${ARG_MAIN_CONFIG}" STREQUAL "") 1124 get_filename_component(INPUT_DIR ${site_in} DIRECTORY) 1125 set(ARG_MAIN_CONFIG "${INPUT_DIR}/lit.cfg") 1126 endif() 1127 if ("${ARG_OUTPUT_MAPPING}" STREQUAL "") 1128 set(ARG_OUTPUT_MAPPING "${site_out}") 1129 endif() 1130 1131 foreach(c ${LLVM_TARGETS_TO_BUILD}) 1132 set(TARGETS_BUILT "${TARGETS_BUILT} ${c}") 1133 endforeach(c) 1134 set(TARGETS_TO_BUILD ${TARGETS_BUILT}) 1135 1136 set(SHLIBEXT "${LTDL_SHLIB_EXT}") 1137 1138 # Configuration-time: See Unit/lit.site.cfg.in 1139 if (CMAKE_CFG_INTDIR STREQUAL ".") 1140 set(LLVM_BUILD_MODE ".") 1141 else () 1142 set(LLVM_BUILD_MODE "%(build_mode)s") 1143 endif () 1144 1145 # They below might not be the build tree but provided binary tree. 1146 set(LLVM_SOURCE_DIR ${LLVM_MAIN_SRC_DIR}) 1147 set(LLVM_BINARY_DIR ${LLVM_BINARY_DIR}) 1148 string(REPLACE "${CMAKE_CFG_INTDIR}" "${LLVM_BUILD_MODE}" LLVM_TOOLS_DIR "${LLVM_TOOLS_BINARY_DIR}") 1149 string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} LLVM_LIBS_DIR "${LLVM_LIBRARY_DIR}") 1150 1151 # SHLIBDIR points the build tree. 1152 string(REPLACE "${CMAKE_CFG_INTDIR}" "${LLVM_BUILD_MODE}" SHLIBDIR "${LLVM_SHLIB_OUTPUT_INTDIR}") 1153 1154 set(PYTHON_EXECUTABLE ${PYTHON_EXECUTABLE}) 1155 # FIXME: "ENABLE_SHARED" doesn't make sense, since it is used just for 1156 # plugins. We may rename it. 1157 if(LLVM_ENABLE_PLUGINS) 1158 set(ENABLE_SHARED "1") 1159 else() 1160 set(ENABLE_SHARED "0") 1161 endif() 1162 1163 if(LLVM_ENABLE_ASSERTIONS AND NOT MSVC_IDE) 1164 set(ENABLE_ASSERTIONS "1") 1165 else() 1166 set(ENABLE_ASSERTIONS "0") 1167 endif() 1168 1169 set(HOST_OS ${CMAKE_SYSTEM_NAME}) 1170 set(HOST_ARCH ${CMAKE_SYSTEM_PROCESSOR}) 1171 1172 set(HOST_CC "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}") 1173 set(HOST_CXX "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1}") 1174 set(HOST_LDFLAGS "${CMAKE_EXE_LINKER_FLAGS}") 1175 1176 set(LIT_SITE_CFG_IN_HEADER "## Autogenerated from ${site_in}\n## Do not edit!") 1177 1178 # Override config_target_triple (and the env) 1179 if(LLVM_TARGET_TRIPLE_ENV) 1180 # This is expanded into the heading. 1181 string(CONCAT LIT_SITE_CFG_IN_HEADER "${LIT_SITE_CFG_IN_HEADER}\n\n" 1182 "import os\n" 1183 "target_env = \"${LLVM_TARGET_TRIPLE_ENV}\"\n" 1184 "config.target_triple = config.environment[target_env] = os.environ.get(target_env, \"${TARGET_TRIPLE}\")\n" 1185 ) 1186 1187 # This is expanded to; config.target_triple = ""+config.target_triple+"" 1188 set(TARGET_TRIPLE "\"+config.target_triple+\"") 1189 endif() 1190 1191 string(CONCAT LIT_SITE_CFG_IN_FOOTER 1192 "import lit.llvm\n" 1193 "lit.llvm.initialize(lit_config, config)\n") 1194 1195 configure_file(${site_in} ${site_out} @ONLY) 1196 if (EXISTS "${ARG_MAIN_CONFIG}") 1197 set(PYTHON_STATEMENT "map_config('${ARG_MAIN_CONFIG}', '${site_out}')") 1198 get_property(LLVM_LIT_CONFIG_MAP GLOBAL PROPERTY LLVM_LIT_CONFIG_MAP) 1199 set(LLVM_LIT_CONFIG_MAP "${LLVM_LIT_CONFIG_MAP}\n${PYTHON_STATEMENT}") 1200 set_property(GLOBAL PROPERTY LLVM_LIT_CONFIG_MAP ${LLVM_LIT_CONFIG_MAP}) 1201 endif() 1202 endfunction() 1203 1204 function(dump_all_cmake_variables) 1205 get_cmake_property(_variableNames VARIABLES) 1206 foreach (_variableName ${_variableNames}) 1207 message(STATUS "${_variableName}=${${_variableName}}") 1208 endforeach() 1209 endfunction() 1210 1211 function(get_llvm_lit_path base_dir file_name) 1212 cmake_parse_arguments(ARG "ALLOW_EXTERNAL" "" "" ${ARGN}) 1213 1214 if (ARG_ALLOW_EXTERNAL) 1215 set(LLVM_DEFAULT_EXTERNAL_LIT "${LLVM_EXTERNAL_LIT}") 1216 set (LLVM_EXTERNAL_LIT "" CACHE STRING "Command used to spawn lit") 1217 if ("${LLVM_EXTERNAL_LIT}" STREQUAL "") 1218 set(LLVM_EXTERNAL_LIT "${LLVM_DEFAULT_EXTERNAL_LIT}") 1219 endif() 1220 1221 if (NOT "${LLVM_EXTERNAL_LIT}" STREQUAL "") 1222 if (EXISTS ${LLVM_EXTERNAL_LIT}) 1223 get_filename_component(LIT_FILE_NAME ${LLVM_EXTERNAL_LIT} NAME) 1224 get_filename_component(LIT_BASE_DIR ${LLVM_EXTERNAL_LIT} DIRECTORY) 1225 set(${file_name} ${LIT_FILE_NAME} PARENT_SCOPE) 1226 set(${base_dir} ${LIT_BASE_DIR} PARENT_SCOPE) 1227 return() 1228 else() 1229 message(WARN "LLVM_EXTERNAL_LIT set to ${LLVM_EXTERNAL_LIT}, but the path does not exist.") 1230 endif() 1231 endif() 1232 endif() 1233 1234 set(lit_file_name "llvm-lit") 1235 if (WIN32 AND NOT CYGWIN) 1236 # llvm-lit needs suffix.py for multiprocess to find a main module. 1237 set(lit_file_name "${lit_file_name}.py") 1238 endif () 1239 set(${file_name} ${lit_file_name} PARENT_SCOPE) 1240 1241 get_property(LLVM_LIT_BASE_DIR GLOBAL PROPERTY LLVM_LIT_BASE_DIR) 1242 if (NOT "${LLVM_LIT_BASE_DIR}" STREQUAL "") 1243 set(${base_dir} ${LLVM_LIT_BASE_DIR} PARENT_SCOPE) 1244 endif() 1245 1246 # Allow individual projects to provide an override 1247 if (NOT "${LLVM_LIT_OUTPUT_DIR}" STREQUAL "") 1248 set(LLVM_LIT_BASE_DIR ${LLVM_LIT_OUTPUT_DIR}) 1249 elseif(NOT "${LLVM_RUNTIME_OUTPUT_INTDIR}" STREQUAL "") 1250 set(LLVM_LIT_BASE_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR}) 1251 else() 1252 set(LLVM_LIT_BASE_DIR "") 1253 endif() 1254 1255 # Cache this so we don't have to do it again and have subsequent calls 1256 # potentially disagree on the value. 1257 set_property(GLOBAL PROPERTY LLVM_LIT_BASE_DIR ${LLVM_LIT_BASE_DIR}) 1258 set(${base_dir} ${LLVM_LIT_BASE_DIR} PARENT_SCOPE) 1259 endfunction() 1260 1261 # A raw function to create a lit target. This is used to implement the testuite 1262 # management functions. 1263 function(add_lit_target target comment) 1264 cmake_parse_arguments(ARG "" "" "PARAMS;DEPENDS;ARGS" ${ARGN}) 1265 set(LIT_ARGS "${ARG_ARGS} ${LLVM_LIT_ARGS}") 1266 separate_arguments(LIT_ARGS) 1267 if (NOT CMAKE_CFG_INTDIR STREQUAL ".") 1268 list(APPEND LIT_ARGS --param build_mode=${CMAKE_CFG_INTDIR}) 1269 endif () 1270 1271 # Get the path to the lit to *run* tests with. This can be overriden by 1272 # the user by specifying -DLLVM_EXTERNAL_LIT=<path-to-lit.py> 1273 get_llvm_lit_path( 1274 lit_base_dir 1275 lit_file_name 1276 ALLOW_EXTERNAL 1277 ) 1278 1279 set(LIT_COMMAND "${PYTHON_EXECUTABLE};${lit_base_dir}/${lit_file_name}") 1280 list(APPEND LIT_COMMAND ${LIT_ARGS}) 1281 foreach(param ${ARG_PARAMS}) 1282 list(APPEND LIT_COMMAND --param ${param}) 1283 endforeach() 1284 if (ARG_UNPARSED_ARGUMENTS) 1285 add_custom_target(${target} 1286 COMMAND ${LIT_COMMAND} ${ARG_UNPARSED_ARGUMENTS} 1287 COMMENT "${comment}" 1288 USES_TERMINAL 1289 ) 1290 else() 1291 add_custom_target(${target} 1292 COMMAND ${CMAKE_COMMAND} -E echo "${target} does nothing, no tools built.") 1293 message(STATUS "${target} does nothing.") 1294 endif() 1295 if (ARG_DEPENDS) 1296 add_dependencies(${target} ${ARG_DEPENDS}) 1297 endif() 1298 1299 # Tests should be excluded from "Build Solution". 1300 set_target_properties(${target} PROPERTIES EXCLUDE_FROM_DEFAULT_BUILD ON) 1301 endfunction() 1302 1303 # A function to add a set of lit test suites to be driven through 'check-*' targets. 1304 function(add_lit_testsuite target comment) 1305 cmake_parse_arguments(ARG "" "" "PARAMS;DEPENDS;ARGS" ${ARGN}) 1306 1307 # EXCLUDE_FROM_ALL excludes the test ${target} out of check-all. 1308 if(NOT EXCLUDE_FROM_ALL) 1309 # Register the testsuites, params and depends for the global check rule. 1310 set_property(GLOBAL APPEND PROPERTY LLVM_LIT_TESTSUITES ${ARG_UNPARSED_ARGUMENTS}) 1311 set_property(GLOBAL APPEND PROPERTY LLVM_LIT_PARAMS ${ARG_PARAMS}) 1312 set_property(GLOBAL APPEND PROPERTY LLVM_LIT_DEPENDS ${ARG_DEPENDS}) 1313 set_property(GLOBAL APPEND PROPERTY LLVM_LIT_EXTRA_ARGS ${ARG_ARGS}) 1314 endif() 1315 1316 # Produce a specific suffixed check rule. 1317 add_lit_target(${target} ${comment} 1318 ${ARG_UNPARSED_ARGUMENTS} 1319 PARAMS ${ARG_PARAMS} 1320 DEPENDS ${ARG_DEPENDS} 1321 ARGS ${ARG_ARGS} 1322 ) 1323 endfunction() 1324 1325 function(add_lit_testsuites project directory) 1326 if (NOT CMAKE_CONFIGURATION_TYPES) 1327 cmake_parse_arguments(ARG "" "" "PARAMS;DEPENDS;ARGS" ${ARGN}) 1328 1329 # Search recursively for test directories by assuming anything not 1330 # in a directory called Inputs contains tests. 1331 file(GLOB_RECURSE to_process LIST_DIRECTORIES true ${directory}/*) 1332 foreach(lit_suite ${to_process}) 1333 if(NOT IS_DIRECTORY ${lit_suite}) 1334 continue() 1335 endif() 1336 string(FIND ${lit_suite} Inputs is_inputs) 1337 string(FIND ${lit_suite} Output is_output) 1338 if (NOT (is_inputs EQUAL -1 AND is_output EQUAL -1)) 1339 continue() 1340 endif() 1341 1342 # Create a check- target for the directory. 1343 string(REPLACE ${directory} "" name_slash ${lit_suite}) 1344 if (name_slash) 1345 string(REPLACE "/" "-" name_slash ${name_slash}) 1346 string(REPLACE "\\" "-" name_dashes ${name_slash}) 1347 string(TOLOWER "${project}${name_dashes}" name_var) 1348 add_lit_target("check-${name_var}" "Running lit suite ${lit_suite}" 1349 ${lit_suite} 1350 PARAMS ${ARG_PARAMS} 1351 DEPENDS ${ARG_DEPENDS} 1352 ARGS ${ARG_ARGS} 1353 ) 1354 endif() 1355 endforeach() 1356 endif() 1357 endfunction() 1358 1359 function(llvm_install_library_symlink name dest type) 1360 cmake_parse_arguments(ARG "ALWAYS_GENERATE" "COMPONENT" "" ${ARGN}) 1361 foreach(path ${CMAKE_MODULE_PATH}) 1362 if(EXISTS ${path}/LLVMInstallSymlink.cmake) 1363 set(INSTALL_SYMLINK ${path}/LLVMInstallSymlink.cmake) 1364 break() 1365 endif() 1366 endforeach() 1367 1368 set(component ${ARG_COMPONENT}) 1369 if(NOT component) 1370 set(component ${name}) 1371 endif() 1372 1373 set(full_name ${CMAKE_${type}_LIBRARY_PREFIX}${name}${CMAKE_${type}_LIBRARY_SUFFIX}) 1374 set(full_dest ${CMAKE_${type}_LIBRARY_PREFIX}${dest}${CMAKE_${type}_LIBRARY_SUFFIX}) 1375 1376 set(output_dir lib${LLVM_LIBDIR_SUFFIX}) 1377 if(WIN32 AND "${type}" STREQUAL "SHARED") 1378 set(output_dir bin) 1379 endif() 1380 1381 install(SCRIPT ${INSTALL_SYMLINK} 1382 CODE "install_symlink(${full_name} ${full_dest} ${output_dir})" 1383 COMPONENT ${component}) 1384 1385 if (NOT CMAKE_CONFIGURATION_TYPES AND NOT ARG_ALWAYS_GENERATE) 1386 add_custom_target(install-${name} 1387 DEPENDS ${name} ${dest} install-${dest} 1388 COMMAND "${CMAKE_COMMAND}" 1389 -DCMAKE_INSTALL_COMPONENT=${name} 1390 -P "${CMAKE_BINARY_DIR}/cmake_install.cmake") 1391 endif() 1392 endfunction() 1393 1394 function(llvm_install_symlink name dest) 1395 cmake_parse_arguments(ARG "ALWAYS_GENERATE" "COMPONENT" "" ${ARGN}) 1396 foreach(path ${CMAKE_MODULE_PATH}) 1397 if(EXISTS ${path}/LLVMInstallSymlink.cmake) 1398 set(INSTALL_SYMLINK ${path}/LLVMInstallSymlink.cmake) 1399 break() 1400 endif() 1401 endforeach() 1402 1403 if(ARG_COMPONENT) 1404 set(component ${ARG_COMPONENT}) 1405 else() 1406 if(ARG_ALWAYS_GENERATE) 1407 set(component ${dest}) 1408 else() 1409 set(component ${name}) 1410 endif() 1411 endif() 1412 1413 set(full_name ${name}${CMAKE_EXECUTABLE_SUFFIX}) 1414 set(full_dest ${dest}${CMAKE_EXECUTABLE_SUFFIX}) 1415 1416 install(SCRIPT ${INSTALL_SYMLINK} 1417 CODE "install_symlink(${full_name} ${full_dest} ${LLVM_TOOLS_INSTALL_DIR})" 1418 COMPONENT ${component}) 1419 1420 if (NOT CMAKE_CONFIGURATION_TYPES AND NOT ARG_ALWAYS_GENERATE) 1421 add_custom_target(install-${name} 1422 DEPENDS ${name} ${dest} install-${dest} 1423 COMMAND "${CMAKE_COMMAND}" 1424 -DCMAKE_INSTALL_COMPONENT=${name} 1425 -P "${CMAKE_BINARY_DIR}/cmake_install.cmake") 1426 endif() 1427 endfunction() 1428 1429 function(add_llvm_tool_symlink link_name target) 1430 cmake_parse_arguments(ARG "ALWAYS_GENERATE" "OUTPUT_DIR" "" ${ARGN}) 1431 set(dest_binary "$<TARGET_FILE:${target}>") 1432 1433 # This got a bit gross... For multi-configuration generators the target 1434 # properties return the resolved value of the string, not the build system 1435 # expression. To reconstruct the platform-agnostic path we have to do some 1436 # magic. First we grab one of the types, and a type-specific path. Then from 1437 # the type-specific path we find the last occurrence of the type in the path, 1438 # and replace it with CMAKE_CFG_INTDIR. This allows the build step to be type 1439 # agnostic again. 1440 if(NOT ARG_OUTPUT_DIR) 1441 # If you're not overriding the OUTPUT_DIR, we can make the link relative in 1442 # the same directory. 1443 if(UNIX) 1444 set(dest_binary "$<TARGET_FILE_NAME:${target}>") 1445 endif() 1446 if(CMAKE_CONFIGURATION_TYPES) 1447 list(GET CMAKE_CONFIGURATION_TYPES 0 first_type) 1448 string(TOUPPER ${first_type} first_type_upper) 1449 set(first_type_suffix _${first_type_upper}) 1450 endif() 1451 get_target_property(target_type ${target} TYPE) 1452 if(${target_type} STREQUAL "STATIC_LIBRARY") 1453 get_target_property(ARG_OUTPUT_DIR ${target} ARCHIVE_OUTPUT_DIRECTORY${first_type_suffix}) 1454 elseif(UNIX AND ${target_type} STREQUAL "SHARED_LIBRARY") 1455 get_target_property(ARG_OUTPUT_DIR ${target} LIBRARY_OUTPUT_DIRECTORY${first_type_suffix}) 1456 else() 1457 get_target_property(ARG_OUTPUT_DIR ${target} RUNTIME_OUTPUT_DIRECTORY${first_type_suffix}) 1458 endif() 1459 if(CMAKE_CONFIGURATION_TYPES) 1460 string(FIND "${ARG_OUTPUT_DIR}" "/${first_type}/" type_start REVERSE) 1461 string(SUBSTRING "${ARG_OUTPUT_DIR}" 0 ${type_start} path_prefix) 1462 string(SUBSTRING "${ARG_OUTPUT_DIR}" ${type_start} -1 path_suffix) 1463 string(REPLACE "/${first_type}/" "/${CMAKE_CFG_INTDIR}/" 1464 path_suffix ${path_suffix}) 1465 set(ARG_OUTPUT_DIR ${path_prefix}${path_suffix}) 1466 endif() 1467 endif() 1468 1469 if(UNIX) 1470 set(LLVM_LINK_OR_COPY create_symlink) 1471 else() 1472 set(LLVM_LINK_OR_COPY copy) 1473 endif() 1474 1475 set(output_path "${ARG_OUTPUT_DIR}/${link_name}${CMAKE_EXECUTABLE_SUFFIX}") 1476 1477 set(target_name ${link_name}) 1478 if(TARGET ${link_name}) 1479 set(target_name ${link_name}-link) 1480 endif() 1481 1482 1483 if(ARG_ALWAYS_GENERATE) 1484 set_property(DIRECTORY APPEND PROPERTY 1485 ADDITIONAL_MAKE_CLEAN_FILES ${dest_binary}) 1486 add_custom_command(TARGET ${target} POST_BUILD 1487 COMMAND ${CMAKE_COMMAND} -E ${LLVM_LINK_OR_COPY} "${dest_binary}" "${output_path}") 1488 else() 1489 add_custom_command(OUTPUT ${output_path} 1490 COMMAND ${CMAKE_COMMAND} -E ${LLVM_LINK_OR_COPY} "${dest_binary}" "${output_path}" 1491 DEPENDS ${target}) 1492 add_custom_target(${target_name} ALL DEPENDS ${target} ${output_path}) 1493 set_target_properties(${target_name} PROPERTIES FOLDER Tools) 1494 1495 # Make sure both the link and target are toolchain tools 1496 if (${link_name} IN_LIST LLVM_TOOLCHAIN_TOOLS AND ${target} IN_LIST LLVM_TOOLCHAIN_TOOLS) 1497 set(TOOL_IS_TOOLCHAIN ON) 1498 endif() 1499 1500 if ((TOOL_IS_TOOLCHAIN OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY) AND LLVM_BUILD_TOOLS) 1501 llvm_install_symlink(${link_name} ${target}) 1502 endif() 1503 endif() 1504 endfunction() 1505 1506 function(llvm_externalize_debuginfo name) 1507 if(NOT LLVM_EXTERNALIZE_DEBUGINFO) 1508 return() 1509 endif() 1510 1511 if(NOT LLVM_EXTERNALIZE_DEBUGINFO_SKIP_STRIP) 1512 if(APPLE) 1513 set(strip_command COMMAND xcrun strip -Sxl $<TARGET_FILE:${name}>) 1514 else() 1515 set(strip_command COMMAND strip -gx $<TARGET_FILE:${name}>) 1516 endif() 1517 endif() 1518 1519 if(APPLE) 1520 if(CMAKE_CXX_FLAGS MATCHES "-flto" 1521 OR CMAKE_CXX_FLAGS_${uppercase_CMAKE_BUILD_TYPE} MATCHES "-flto") 1522 1523 set(lto_object ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/${name}-lto.o) 1524 set_property(TARGET ${name} APPEND_STRING PROPERTY 1525 LINK_FLAGS " -Wl,-object_path_lto,${lto_object}") 1526 endif() 1527 add_custom_command(TARGET ${name} POST_BUILD 1528 COMMAND xcrun dsymutil $<TARGET_FILE:${name}> 1529 ${strip_command} 1530 ) 1531 else() 1532 add_custom_command(TARGET ${name} POST_BUILD 1533 COMMAND objcopy --only-keep-debug $<TARGET_FILE:${name}> $<TARGET_FILE:${name}>.debug 1534 ${strip_command} -R .gnu_debuglink 1535 COMMAND objcopy --add-gnu-debuglink=$<TARGET_FILE:${name}>.debug $<TARGET_FILE:${name}> 1536 ) 1537 endif() 1538 endfunction() 1539 1540 function(llvm_setup_rpath name) 1541 if(CMAKE_INSTALL_RPATH) 1542 return() 1543 endif() 1544 1545 if(LLVM_INSTALL_PREFIX AND NOT (LLVM_INSTALL_PREFIX STREQUAL CMAKE_INSTALL_PREFIX)) 1546 set(extra_libdir ${LLVM_LIBRARY_DIR}) 1547 elseif(LLVM_BUILD_LIBRARY_DIR) 1548 set(extra_libdir ${LLVM_LIBRARY_DIR}) 1549 endif() 1550 1551 if (APPLE) 1552 set(_install_name_dir INSTALL_NAME_DIR "@rpath") 1553 set(_install_rpath "@loader_path/../lib" ${extra_libdir}) 1554 elseif(UNIX) 1555 set(_install_rpath "\$ORIGIN/../lib${LLVM_LIBDIR_SUFFIX}" ${extra_libdir}) 1556 if(${CMAKE_SYSTEM_NAME} MATCHES "(FreeBSD|DragonFly)") 1557 set_property(TARGET ${name} APPEND_STRING PROPERTY 1558 LINK_FLAGS " -Wl,-z,origin ") 1559 elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Linux" AND NOT LLVM_LINKER_IS_GOLD) 1560 # $ORIGIN is not interpreted at link time by ld.bfd 1561 set_property(TARGET ${name} APPEND_STRING PROPERTY 1562 LINK_FLAGS " -Wl,-rpath-link,${LLVM_LIBRARY_OUTPUT_INTDIR} ") 1563 endif() 1564 else() 1565 return() 1566 endif() 1567 1568 set_target_properties(${name} PROPERTIES 1569 BUILD_WITH_INSTALL_RPATH On 1570 INSTALL_RPATH "${_install_rpath}" 1571 ${_install_name_dir}) 1572 endfunction() 1573 1574 function(setup_dependency_debugging name) 1575 if(NOT LLVM_DEPENDENCY_DEBUGGING) 1576 return() 1577 endif() 1578 1579 if("intrinsics_gen" IN_LIST ARGN) 1580 return() 1581 endif() 1582 1583 set(deny_attributes_gen "(deny file* (literal \"${LLVM_BINARY_DIR}/include/llvm/IR/Attributes.gen\"))") 1584 set(deny_intrinsics_gen "(deny file* (literal \"${LLVM_BINARY_DIR}/include/llvm/IR/Intrinsics.gen\"))") 1585 1586 set(sandbox_command "sandbox-exec -p '(version 1) (allow default) ${deny_attributes_gen} ${deny_intrinsics_gen}'") 1587 set_target_properties(${name} PROPERTIES RULE_LAUNCH_COMPILE ${sandbox_command}) 1588 endfunction() 1589 1590 # Figure out if we can track VC revisions. 1591 function(find_first_existing_file out_var) 1592 foreach(file ${ARGN}) 1593 if(EXISTS "${file}") 1594 set(${out_var} "${file}" PARENT_SCOPE) 1595 return() 1596 endif() 1597 endforeach() 1598 endfunction() 1599 1600 macro(find_first_existing_vc_file out_var path) 1601 find_program(git_executable NAMES git git.exe git.cmd) 1602 # Run from a subdirectory to force git to print an absolute path. 1603 execute_process(COMMAND ${git_executable} rev-parse --git-dir 1604 WORKING_DIRECTORY ${path}/cmake 1605 RESULT_VARIABLE git_result 1606 OUTPUT_VARIABLE git_dir 1607 ERROR_QUIET) 1608 if(git_result EQUAL 0) 1609 string(STRIP "${git_dir}" git_dir) 1610 set(${out_var} "${git_dir}/logs/HEAD") 1611 # some branchless cases (e.g. 'repo') may not yet have .git/logs/HEAD 1612 if (NOT EXISTS "${git_dir}/logs/HEAD") 1613 file(WRITE "${git_dir}/logs/HEAD" "") 1614 endif() 1615 else() 1616 find_first_existing_file(${out_var} 1617 "${path}/.svn/wc.db" # SVN 1.7 1618 "${path}/.svn/entries" # SVN 1.6 1619 ) 1620 endif() 1621 endmacro() 1622
