1 cmake_minimum_required(VERSION 3.4.3)
3 # If we are not building as a part of LLVM, build Clang as an
4 # standalone project, using LLVM as an external library:
5 if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )
10 find_program(LLVM_CONFIG "llvm-config")
12 message(STATUS "Found LLVM_CONFIG as ${LLVM_CONFIG}")
13 set(CONFIG_COMMAND ${LLVM_CONFIG}
22 COMMAND ${CONFIG_COMMAND}
23 RESULT_VARIABLE HAD_ERROR
24 OUTPUT_VARIABLE CONFIG_OUTPUT
28 "[ \t]*[\r\n]+[ \t]*" ";"
29 CONFIG_OUTPUT ${CONFIG_OUTPUT})
31 string(REPLACE ";" " " CONFIG_COMMAND_STR "${CONFIG_COMMAND}")
32 message(STATUS "${CONFIG_COMMAND_STR}")
33 message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
36 message(FATAL_ERROR "llvm-config not found -- ${LLVM_CONFIG}")
39 list(GET CONFIG_OUTPUT 0 ENABLE_ASSERTIONS)
40 list(GET CONFIG_OUTPUT 1 TOOLS_BINARY_DIR)
41 list(GET CONFIG_OUTPUT 2 LIBRARY_DIR)
42 list(GET CONFIG_OUTPUT 3 INCLUDE_DIR)
43 list(GET CONFIG_OUTPUT 4 LLVM_OBJ_ROOT)
44 list(GET CONFIG_OUTPUT 5 MAIN_SRC_DIR)
45 list(GET CONFIG_OUTPUT 6 LLVM_CONFIG_CMAKE_PATH)
48 set(LLVM_ENABLE_ASSERTIONS ${ENABLE_ASSERTIONS}
49 CACHE BOOL "Enable assertions")
50 # Assertions should follow llvm-config's.
51 mark_as_advanced(LLVM_ENABLE_ASSERTIONS)
54 set(LLVM_TOOLS_BINARY_DIR ${TOOLS_BINARY_DIR} CACHE PATH "Path to llvm/bin")
55 set(LLVM_LIBRARY_DIR ${LIBRARY_DIR} CACHE PATH "Path to llvm/lib")
56 set(LLVM_MAIN_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include")
57 set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree")
58 set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree")
60 # Normalize LLVM_CMAKE_PATH. --cmakedir might contain backslashes.
61 # CMake assumes slashes as PATH.
62 file(TO_CMAKE_PATH ${LLVM_CONFIG_CMAKE_PATH} LLVM_CMAKE_PATH)
64 find_program(LLVM_TABLEGEN_EXE "llvm-tblgen" ${LLVM_TOOLS_BINARY_DIR}
67 set(LLVMCONFIG_FILE "${LLVM_CMAKE_PATH}/LLVMConfig.cmake")
68 if(EXISTS ${LLVMCONFIG_FILE})
69 list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
70 include(${LLVMCONFIG_FILE})
72 message(FATAL_ERROR "Not found: ${LLVMCONFIG_FILE}")
75 # They are used as destination of target generators.
76 set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin)
77 set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX})
79 # DLL platform -- put DLLs into bin.
80 set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
82 set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
85 option(LLVM_ENABLE_WARNINGS "Enable compiler warnings." ON)
86 option(LLVM_INSTALL_TOOLCHAIN_ONLY
87 "Only include toolchain files in the 'install' target." OFF)
89 option(LLVM_FORCE_USE_OLD_HOST_TOOLCHAIN
90 "Set to ON to force using an old, unsupported host toolchain." OFF)
91 option(CLANG_ENABLE_BOOTSTRAP "Generate the clang bootstrap target" OFF)
95 include(HandleLLVMOptions)
96 include(VersionFromVCS)
98 set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
100 if (NOT DEFINED LLVM_INCLUDE_TESTS)
101 set(LLVM_INCLUDE_TESTS ON)
104 include_directories("${LLVM_BINARY_DIR}/include" "${LLVM_MAIN_INCLUDE_DIR}")
105 link_directories("${LLVM_LIBRARY_DIR}")
107 set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin )
108 set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
109 set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
111 if(LLVM_INCLUDE_TESTS)
112 set(Python_ADDITIONAL_VERSIONS 2.7)
113 include(FindPythonInterp)
114 if(NOT PYTHONINTERP_FOUND)
116 "Unable to find Python interpreter, required for builds and testing.
118 Please install Python or specify the PYTHON_EXECUTABLE CMake variable.")
121 if( ${PYTHON_VERSION_STRING} VERSION_LESS 2.7 )
122 message(FATAL_ERROR "Python 2.7 or newer is required")
125 # Check prebuilt llvm/utils.
126 if(EXISTS ${LLVM_TOOLS_BINARY_DIR}/FileCheck${CMAKE_EXECUTABLE_SUFFIX}
127 AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/count${CMAKE_EXECUTABLE_SUFFIX}
128 AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/not${CMAKE_EXECUTABLE_SUFFIX})
129 set(LLVM_UTILS_PROVIDED ON)
132 if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
133 # Note: path not really used, except for checking if lit was found
134 set(LLVM_LIT ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
135 if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/llvm-lit)
136 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/llvm-lit utils/llvm-lit)
138 if(NOT LLVM_UTILS_PROVIDED)
139 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/FileCheck utils/FileCheck)
140 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/count utils/count)
141 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/not utils/not)
142 set(LLVM_UTILS_PROVIDED ON)
143 set(CLANG_TEST_DEPS FileCheck count not)
145 set(UNITTEST_DIR ${LLVM_MAIN_SRC_DIR}/utils/unittest)
146 if(EXISTS ${UNITTEST_DIR}/googletest/include/gtest/gtest.h
147 AND NOT EXISTS ${LLVM_LIBRARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}gtest${CMAKE_STATIC_LIBRARY_SUFFIX}
148 AND EXISTS ${UNITTEST_DIR}/CMakeLists.txt)
149 add_subdirectory(${UNITTEST_DIR} utils/unittest)
152 # Seek installed Lit.
153 find_program(LLVM_LIT
154 NAMES llvm-lit lit.py lit
155 PATHS "${LLVM_MAIN_SRC_DIR}/utils/lit"
156 DOC "Path to lit.py")
160 # Define the default arguments to use with 'lit', and an option for the user
162 set(LIT_ARGS_DEFAULT "-sv")
164 set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
166 set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")
168 # On Win32 hosts, provide an option to specify the path to the GnuWin32 tools.
169 if( WIN32 AND NOT CYGWIN )
170 set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")
173 set(LLVM_INCLUDE_TESTS OFF)
177 set( CLANG_BUILT_STANDALONE 1 )
178 set(BACKEND_PACKAGE_STRING "LLVM ${LLVM_PACKAGE_VERSION}")
180 set(BACKEND_PACKAGE_STRING "${PACKAGE_STRING}")
183 # Make sure that our source directory is on the current cmake module path so that
184 # we can include cmake files from this directory.
185 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")
187 # Don't look for libxml if we're using MSan, since uninstrumented third party
188 # code may call MSan interceptors like strlen, leading to false positives.
189 if(NOT LLVM_USE_SANITIZER MATCHES "Memory.*")
190 set (LIBXML2_FOUND 0)
191 find_package(LibXml2 2.5.3 QUIET)
193 set(CLANG_HAVE_LIBXML 1)
197 include(CheckIncludeFile)
198 check_include_file(sys/resource.h CLANG_HAVE_RLIMITS)
200 set(CLANG_RESOURCE_DIR "" CACHE STRING
201 "Relative directory from the Clang binary to its resource files.")
203 set(C_INCLUDE_DIRS "" CACHE STRING
204 "Colon separated list of directories clang will search for headers.")
206 set(GCC_INSTALL_PREFIX "" CACHE PATH "Directory where gcc is installed." )
207 set(DEFAULT_SYSROOT "" CACHE PATH
208 "Default <path> to all compiler invocations for --sysroot=<path>." )
210 set(ENABLE_LINKER_BUILD_ID OFF CACHE BOOL "pass --build-id to ld")
212 set(ENABLE_X86_RELAX_RELOCATIONS OFF CACHE BOOL
213 "enable x86 relax relocations by default")
215 set(ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER FALSE CACHE BOOL
216 "Enable the experimental new pass manager by default.")
218 # TODO: verify the values against LangStandards.def?
219 set(CLANG_DEFAULT_STD_C "" CACHE STRING
220 "Default standard to use for C/ObjC code (IDENT from LangStandards.def, empty for platform default)")
221 set(CLANG_DEFAULT_STD_CXX "" CACHE STRING
222 "Default standard to use for C++/ObjC++ code (IDENT from LangStandards.def, empty for platform default)")
224 set(CLANG_DEFAULT_LINKER "" CACHE STRING
225 "Default linker to use (linker name or absolute path, empty for platform default)")
227 set(CLANG_DEFAULT_CXX_STDLIB "" CACHE STRING
228 "Default C++ stdlib to use (\"libstdc++\" or \"libc++\", empty for platform default")
229 if (NOT(CLANG_DEFAULT_CXX_STDLIB STREQUAL "" OR
230 CLANG_DEFAULT_CXX_STDLIB STREQUAL "libstdc++" OR
231 CLANG_DEFAULT_CXX_STDLIB STREQUAL "libc++"))
232 message(WARNING "Resetting default C++ stdlib to use platform default")
233 set(CLANG_DEFAULT_CXX_STDLIB "" CACHE STRING
234 "Default C++ stdlib to use (\"libstdc++\" or \"libc++\", empty for platform default" FORCE)
237 set(CLANG_DEFAULT_RTLIB "" CACHE STRING
238 "Default runtime library to use (\"libgcc\" or \"compiler-rt\", empty for platform default)")
239 if (NOT(CLANG_DEFAULT_RTLIB STREQUAL "" OR
240 CLANG_DEFAULT_RTLIB STREQUAL "libgcc" OR
241 CLANG_DEFAULT_RTLIB STREQUAL "compiler-rt"))
242 message(WARNING "Resetting default rtlib to use platform default")
243 set(CLANG_DEFAULT_RTLIB "" CACHE STRING
244 "Default runtime library to use (\"libgcc\" or \"compiler-rt\", empty for platform default)" FORCE)
247 set(CLANG_DEFAULT_OBJCOPY "objcopy" CACHE STRING
248 "Default objcopy executable to use.")
250 set(CLANG_DEFAULT_OPENMP_RUNTIME "libomp" CACHE STRING
251 "Default OpenMP runtime used by -fopenmp.")
253 # OpenMP offloading requires at least sm_35 because we use shuffle instructions
254 # to generate efficient code for reductions and the atomicMax instruction on
255 # 64-bit integers in the implementation of conditional lastprivate.
256 set(CLANG_OPENMP_NVPTX_DEFAULT_ARCH "sm_35" CACHE STRING
257 "Default architecture for OpenMP offloading to Nvidia GPUs.")
258 string(REGEX MATCH "^sm_([0-9]+)$" MATCHED_ARCH "${CLANG_OPENMP_NVPTX_DEFAULT_ARCH}")
259 if (NOT DEFINED MATCHED_ARCH OR "${CMAKE_MATCH_1}" LESS 35)
260 message(WARNING "Resetting default architecture for OpenMP offloading to Nvidia GPUs to sm_35")
261 set(CLANG_OPENMP_NVPTX_DEFAULT_ARCH "sm_35" CACHE STRING
262 "Default architecture for OpenMP offloading to Nvidia GPUs." FORCE)
265 set(CLANG_VENDOR ${PACKAGE_VENDOR} CACHE STRING
266 "Vendor-specific text for showing with version information.")
269 add_definitions( -DCLANG_VENDOR="${CLANG_VENDOR} " )
272 set(CLANG_REPOSITORY_STRING "" CACHE STRING
273 "Vendor-specific text for showing the repository the source is taken from.")
275 if(CLANG_REPOSITORY_STRING)
276 add_definitions(-DCLANG_REPOSITORY_STRING="${CLANG_REPOSITORY_STRING}")
279 set(CLANG_VENDOR_UTI "org.llvm.clang" CACHE STRING
280 "Vendor-specific uti.")
282 # The libdir suffix must exactly match whatever LLVM's configuration used.
283 set(CLANG_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}")
285 set(CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
286 set(CLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
288 if( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE )
289 message(FATAL_ERROR "In-source builds are not allowed. CMake would overwrite "
290 "the makefiles distributed with LLVM. Please create a directory and run cmake "
291 "from there, passing the path to this source directory as the last argument. "
292 "This process created the file `CMakeCache.txt' and the directory "
293 "`CMakeFiles'. Please delete them.")
296 if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )
298 tablegenned_files_on_include_dir
299 "${CLANG_SOURCE_DIR}/include/clang/*.inc")
300 if( tablegenned_files_on_include_dir )
301 message(FATAL_ERROR "Apparently there is a previous in-source build, "
302 "probably as the result of running `configure' and `make' on "
303 "${CLANG_SOURCE_DIR}. This may cause problems. The suspicious files are:\n"
304 "${tablegenned_files_on_include_dir}\nPlease clean the source directory.")
308 # If CLANG_VERSION_* is specified, use it, if not use LLVM_VERSION_*.
309 if(NOT DEFINED CLANG_VERSION_MAJOR)
310 set(CLANG_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
312 if(NOT DEFINED CLANG_VERSION_MINOR)
313 set(CLANG_VERSION_MINOR ${LLVM_VERSION_MINOR})
315 if(NOT DEFINED CLANG_VERSION_PATCHLEVEL)
316 set(CLANG_VERSION_PATCHLEVEL ${LLVM_VERSION_PATCH})
318 # Unlike PACKAGE_VERSION, CLANG_VERSION does not include LLVM_VERSION_SUFFIX.
319 set(CLANG_VERSION "${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}.${CLANG_VERSION_PATCHLEVEL}")
320 message(STATUS "Clang version: ${CLANG_VERSION}")
322 # Configure the Version.inc file.
324 ${CMAKE_CURRENT_SOURCE_DIR}/include/clang/Basic/Version.inc.in
325 ${CMAKE_CURRENT_BINARY_DIR}/include/clang/Basic/Version.inc)
327 # Add appropriate flags for GCC
328 if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
329 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-common -Woverloaded-virtual")
330 if (NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
331 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-strict-aliasing")
334 # Enable -pedantic for Clang even if it's not enabled for LLVM.
335 if (NOT LLVM_ENABLE_PEDANTIC)
336 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic -Wno-long-long")
339 check_cxx_compiler_flag("-Werror -Wnested-anon-types" CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG)
340 if( CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG )
341 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-nested-anon-types" )
345 # Determine HOST_LINK_VERSION on Darwin.
346 set(HOST_LINK_VERSION)
350 COMMAND sh -c "${CMAKE_LINKER} -v 2>&1 | head -1"
351 RESULT_VARIABLE HAD_ERROR
352 OUTPUT_VARIABLE LD_V_OUTPUT
355 if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*")
356 string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
357 elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]+).*")
358 string(REGEX REPLACE "[^0-9]*([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
361 message(FATAL_ERROR "${CMAKE_LINKER} failed with status ${HAD_ERROR}")
365 include(CMakeParseArguments)
368 set(CMAKE_INCLUDE_CURRENT_DIR ON)
370 include_directories(BEFORE
371 ${CMAKE_CURRENT_BINARY_DIR}/include
372 ${CMAKE_CURRENT_SOURCE_DIR}/include
375 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
376 install(DIRECTORY include/clang include/clang-c
381 PATTERN "config.h" EXCLUDE
382 PATTERN ".svn" EXCLUDE
385 install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/clang
388 PATTERN "CMakeFiles" EXCLUDE
393 install(PROGRAMS utils/bash-autocomplete.sh
394 DESTINATION share/clang
398 add_definitions( -D_GNU_SOURCE )
400 option(CLANG_BUILD_TOOLS
401 "Build the Clang tools. If OFF, just generate build targets." ON)
403 option(CLANG_ENABLE_ARCMT "Build ARCMT." ON)
404 option(CLANG_ENABLE_STATIC_ANALYZER "Build static analyzer." ON)
406 option(CLANG_ANALYZER_BUILD_Z3
407 "Build the static analyzer with the Z3 constraint manager." OFF)
409 option(CLANG_ENABLE_PROTO_FUZZER "Build Clang protobuf fuzzer." OFF)
411 if(NOT CLANG_ENABLE_STATIC_ANALYZER AND (CLANG_ENABLE_ARCMT OR CLANG_ANALYZER_BUILD_Z3))
412 message(FATAL_ERROR "Cannot disable static analyzer while enabling ARCMT or Z3")
415 if(CLANG_ANALYZER_BUILD_Z3)
418 set(CLANG_ANALYZER_WITH_Z3 1)
420 message(FATAL_ERROR "Cannot find Z3 header file or shared library")
424 if(CLANG_ENABLE_ARCMT)
425 set(CLANG_ENABLE_OBJC_REWRITER ON)
428 # Clang version information
429 set(CLANG_EXECUTABLE_VERSION
430 "${CLANG_VERSION_MAJOR}" CACHE STRING
431 "Major version number that will be appended to the clang executable name")
432 set(LIBCLANG_LIBRARY_VERSION
433 "${CLANG_VERSION_MAJOR}" CACHE STRING
434 "Major version number that will be appended to the libclang library")
435 mark_as_advanced(CLANG_EXECUTABLE_VERSION LIBCLANG_LIBRARY_VERSION)
437 option(CLANG_INCLUDE_TESTS
438 "Generate build targets for the Clang unit tests."
439 ${LLVM_INCLUDE_TESTS})
441 add_subdirectory(utils/TableGen)
443 add_subdirectory(include)
445 # All targets below may depend on all tablegen'd files.
446 get_property(CLANG_TABLEGEN_TARGETS GLOBAL PROPERTY CLANG_TABLEGEN_TARGETS)
447 add_custom_target(clang-tablegen-targets DEPENDS ${CLANG_TABLEGEN_TARGETS})
448 set_target_properties(clang-tablegen-targets PROPERTIES FOLDER "Misc")
449 list(APPEND LLVM_COMMON_DEPENDS clang-tablegen-targets)
451 # Force target to be built as soon as possible. Clang modules builds depend
452 # header-wise on it as they ship all headers from the umbrella folders. Building
453 # an entire module might include header, which depends on intrinsics_gen.
454 if(LLVM_ENABLE_MODULES AND NOT CLANG_BUILT_STANDALONE)
455 list(APPEND LLVM_COMMON_DEPENDS intrinsics_gen)
458 add_subdirectory(lib)
459 add_subdirectory(tools)
460 add_subdirectory(runtime)
462 option(CLANG_BUILD_EXAMPLES "Build CLANG example programs by default." OFF)
463 add_subdirectory(examples)
466 # this line is needed as a cleanup to ensure that any CMakeCaches with the old
467 # default value get updated to the new default.
468 if(CLANG_ORDER_FILE STREQUAL "")
469 unset(CLANG_ORDER_FILE CACHE)
470 unset(CLANG_ORDER_FILE)
474 set(CLANG_ORDER_FILE ${CMAKE_CURRENT_BINARY_DIR}/clang.order CACHE FILEPATH
475 "Order file to use when compiling clang in order to improve startup time (Darwin Only - requires ld64).")
477 if(NOT EXISTS ${CLANG_ORDER_FILE})
478 string(FIND "${CLANG_ORDER_FILE}" "${CMAKE_CURRENT_BINARY_DIR}" PATH_START)
479 if(PATH_START EQUAL 0)
480 file(WRITE ${CLANG_ORDER_FILE} "\n")
482 message(FATAL_ERROR "Specified order file '${CLANG_ORDER_FILE}' does not exist.")
488 if( CLANG_INCLUDE_TESTS )
489 if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest/include/gtest/gtest.h)
490 add_subdirectory(unittests)
491 list(APPEND CLANG_TEST_DEPS ClangUnitTests)
492 list(APPEND CLANG_TEST_PARAMS
493 clang_unit_site_config=${CMAKE_CURRENT_BINARY_DIR}/test/Unit/lit.site.cfg
496 add_subdirectory(test)
498 if(CLANG_BUILT_STANDALONE)
499 # Add a global check rule now that all subdirectories have been traversed
500 # and we know the total set of lit testsuites.
501 get_property(LLVM_LIT_TESTSUITES GLOBAL PROPERTY LLVM_LIT_TESTSUITES)
502 get_property(LLVM_LIT_PARAMS GLOBAL PROPERTY LLVM_LIT_PARAMS)
503 get_property(LLVM_LIT_DEPENDS GLOBAL PROPERTY LLVM_LIT_DEPENDS)
504 get_property(LLVM_LIT_EXTRA_ARGS GLOBAL PROPERTY LLVM_LIT_EXTRA_ARGS)
505 add_lit_target(check-all
506 "Running all regression tests"
507 ${LLVM_LIT_TESTSUITES}
508 PARAMS ${LLVM_LIT_PARAMS}
509 DEPENDS ${LLVM_LIT_DEPENDS}
510 ARGS ${LLVM_LIT_EXTRA_ARGS}
513 add_subdirectory(utils/perf-training)
516 option(CLANG_INCLUDE_DOCS "Generate build targets for the Clang docs."
517 ${LLVM_INCLUDE_DOCS})
518 if( CLANG_INCLUDE_DOCS )
519 add_subdirectory(docs)
522 add_subdirectory(cmake/modules)
525 message(STATUS "Setting current clang stage to: ${CLANG_STAGE}")
528 if (CLANG_ENABLE_BOOTSTRAP)
529 include(ExternalProject)
531 add_custom_target(clang-bootstrap-deps DEPENDS clang)
534 set(CLANG_STAGE stage1)
537 string(REGEX MATCH "stage([0-9]*)" MATCHED_STAGE "${CLANG_STAGE}")
539 if(NOT LLVM_BUILD_INSTRUMENTED)
540 math(EXPR STAGE_NUM "${CMAKE_MATCH_1} + 1")
541 set(NEXT_CLANG_STAGE stage${STAGE_NUM})
543 set(NEXT_CLANG_STAGE stage${CMAKE_MATCH_1})
546 set(NEXT_CLANG_STAGE bootstrap)
549 if(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED)
550 set(NEXT_CLANG_STAGE ${NEXT_CLANG_STAGE}-instrumented)
552 message(STATUS "Setting next clang stage to: ${NEXT_CLANG_STAGE}")
555 set(STAMP_DIR ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-stamps/)
556 set(BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-bins/)
558 if(BOOTSTRAP_LLVM_ENABLE_LLD)
559 add_dependencies(clang-bootstrap-deps lld)
562 # If the next stage is LTO we need to depend on LTO and possibly lld or LLVMgold
563 if(BOOTSTRAP_LLVM_ENABLE_LTO OR LLVM_ENABLE_LTO AND NOT LLVM_BUILD_INSTRUMENTED)
565 add_dependencies(clang-bootstrap-deps LTO)
566 # on Darwin we need to set DARWIN_LTO_LIBRARY so that -flto will work
567 # using the just-built compiler, and we need to override DYLD_LIBRARY_PATH
568 # so that the host object file tools will use the just-built libLTO.
569 # However if System Integrity Protection is enabled the DYLD variables
570 # will be scrubbed from the environment of any base system commands. This
571 # includes /bin/sh, which ninja uses when executing build commands. To
572 # work around the envar being filtered away we pass it in as a CMake
573 # variable, and have LLVM's CMake append the envar to the archiver calls.
574 set(LTO_LIBRARY -DDARWIN_LTO_LIBRARY=${LLVM_SHLIB_OUTPUT_INTDIR}/libLTO.dylib
575 -DDYLD_LIBRARY_PATH=${LLVM_LIBRARY_OUTPUT_INTDIR})
577 add_dependencies(clang-bootstrap-deps llvm-ar llvm-ranlib)
578 if(NOT BOOTSTRAP_LLVM_ENABLE_LLD AND LLVM_BINUTILS_INCDIR)
579 add_dependencies(clang-bootstrap-deps LLVMgold)
581 set(LTO_AR -DCMAKE_AR=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ar)
582 set(LTO_RANLIB -DCMAKE_RANLIB=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ranlib)
586 if(CLANG_BOOTSTRAP_EXTRA_DEPS)
587 add_dependencies(clang-bootstrap-deps ${CLANG_BOOTSTRAP_EXTRA_DEPS})
590 add_custom_target(${NEXT_CLANG_STAGE}-clear
591 DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-cleared
594 OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-cleared
595 DEPENDS clang-bootstrap-deps
596 COMMAND ${CMAKE_COMMAND} -E remove_directory ${BINARY_DIR}
597 COMMAND ${CMAKE_COMMAND} -E make_directory ${BINARY_DIR}
598 COMMAND ${CMAKE_COMMAND} -E remove_directory ${STAMP_DIR}
599 COMMAND ${CMAKE_COMMAND} -E make_directory ${STAMP_DIR}
600 COMMENT "Clobberring ${NEXT_CLANG_STAGE} build and stamp directories"
603 if(CMAKE_VERBOSE_MAKEFILE)
604 set(verbose -DCMAKE_VERBOSE_MAKEFILE=On)
607 set(_BOOTSTRAP_DEFAULT_PASSTHROUGH
615 CLANG_VERSION_PATCHLEVEL
618 CLANG_REPOSITORY_STRING
620 CMAKE_OSX_ARCHITECTURES
622 LLVM_ENABLE_RUNTIMES)
624 # We don't need to depend on compiler-rt/libcxx if we're building instrumented
625 # because the next stage will use the same compiler used to build this stage.
626 if(NOT LLVM_BUILD_INSTRUMENTED)
627 if(TARGET compiler-rt)
628 add_dependencies(clang-bootstrap-deps compiler-rt)
630 if(TARGET cxx-headers)
631 add_dependencies(clang-bootstrap-deps cxx-headers)
635 set(C_COMPILER "clang")
636 set(CXX_COMPILER "clang++")
638 set(C_COMPILER "clang-cl.exe")
639 set(CXX_COMPILER "clang-cl.exe")
643 -DCMAKE_CXX_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${CXX_COMPILER}
644 -DCMAKE_C_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${C_COMPILER}
645 -DCMAKE_ASM_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${C_COMPILER}
646 -DCMAKE_ASM_COMPILER_ID=Clang)
648 if(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED)
649 add_dependencies(clang-bootstrap-deps llvm-profdata)
650 set(PGO_OPT -DLLVM_PROFDATA=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-profdata)
653 if(LLVM_BUILD_INSTRUMENTED)
654 add_dependencies(clang-bootstrap-deps generate-profdata)
655 set(PGO_OPT -DLLVM_PROFDATA_FILE=${CMAKE_CURRENT_BINARY_DIR}/utils/perf-training/clang.profdata)
656 # Use the current tools for LTO instead of the instrumented ones
657 list(APPEND _BOOTSTRAP_DEFAULT_PASSTHROUGH
666 set(COMPILER_OPTIONS)
672 # Find all variables that start with BOOTSTRAP_ and populate a variable with
674 get_cmake_property(variableNames VARIABLES)
675 foreach(variableName ${variableNames})
676 if(variableName MATCHES "^BOOTSTRAP_")
677 string(SUBSTRING ${variableName} 10 -1 varName)
678 string(REPLACE ";" "|" value "${${variableName}}")
679 list(APPEND PASSTHROUGH_VARIABLES
680 -D${varName}=${value})
682 if(${variableName} AND variableName MATCHES "LLVM_EXTERNAL_.*_SOURCE_DIR")
683 list(APPEND PASSTHROUGH_VARIABLES
684 -D${variableName}=${${variableName}})
688 # Populate the passthrough variables
689 foreach(variableName ${CLANG_BOOTSTRAP_PASSTHROUGH} ${_BOOTSTRAP_DEFAULT_PASSTHROUGH})
690 if(DEFINED ${variableName})
691 if("${${variableName}}" STREQUAL "")
694 string(REPLACE ";" "|" value "${${variableName}}")
696 list(APPEND PASSTHROUGH_VARIABLES
697 -D${variableName}=${value})
701 ExternalProject_Add(${NEXT_CLANG_STAGE}
702 DEPENDS clang-bootstrap-deps
703 PREFIX ${NEXT_CLANG_STAGE}
704 SOURCE_DIR ${CMAKE_SOURCE_DIR}
705 STAMP_DIR ${STAMP_DIR}
706 BINARY_DIR ${BINARY_DIR}
709 # We shouldn't need to set this here, but INSTALL_DIR doesn't
710 # seem to work, so instead I'm passing this through
711 -DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}
712 ${CLANG_BOOTSTRAP_CMAKE_ARGS}
713 ${PASSTHROUGH_VARIABLES}
714 -DCLANG_STAGE=${NEXT_CLANG_STAGE}
716 ${LTO_LIBRARY} ${LTO_AR} ${LTO_RANLIB} ${verbose} ${PGO_OPT}
718 STEP_TARGETS configure build
719 USES_TERMINAL_CONFIGURE 1
720 USES_TERMINAL_BUILD 1
721 USES_TERMINAL_INSTALL 1
725 # exclude really-install from main target
726 set_target_properties(${NEXT_CLANG_STAGE} PROPERTIES _EP_really-install_EXCLUDE_FROM_MAIN On)
727 ExternalProject_Add_Step(${NEXT_CLANG_STAGE} really-install
728 COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --target install
729 COMMENT "Performing install step for '${NEXT_CLANG_STAGE}'"
733 ExternalProject_Add_StepTargets(${NEXT_CLANG_STAGE} really-install)
734 add_custom_target(${NEXT_CLANG_STAGE}-install DEPENDS ${NEXT_CLANG_STAGE}-really-install)
736 if(NOT CLANG_BOOTSTRAP_TARGETS)
737 set(CLANG_BOOTSTRAP_TARGETS check-llvm check-clang check-all)
739 foreach(target ${CLANG_BOOTSTRAP_TARGETS})
740 # exclude from main target
741 set_target_properties(${NEXT_CLANG_STAGE} PROPERTIES _EP_${target}_EXCLUDE_FROM_MAIN On)
743 ExternalProject_Add_Step(${NEXT_CLANG_STAGE} ${target}
744 COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --target ${target}
745 COMMENT "Performing ${target} for '${NEXT_CLANG_STAGE}'"
750 if(target MATCHES "^stage[0-9]*")
751 add_custom_target(${target} DEPENDS ${NEXT_CLANG_STAGE}-${target})
754 ExternalProject_Add_StepTargets(${NEXT_CLANG_STAGE} ${target})
758 if (LLVM_ADD_NATIVE_VISUALIZERS_TO_SOLUTION)
759 add_subdirectory(utils/ClangVisualizers)
761 add_subdirectory(utils/hmaptool)
764 ${CLANG_SOURCE_DIR}/include/clang/Config/config.h.cmake
765 ${CLANG_BINARY_DIR}/include/clang/Config/config.h)