1 cmake_minimum_required(VERSION 3.4.3)
4 cmake_policy(SET CMP0075 NEW)
7 # If we are not building as a part of LLVM, build Clang as an
8 # standalone project, using LLVM as an external library:
9 if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )
12 # Rely on llvm-config.
15 set (LLVM_CONFIG_FOUND 1)
16 message(STATUS "Found LLVM_CONFIG as ${LLVM_CONFIG}")
17 message(DEPRECATION "Using llvm-config to detect the LLVM installation is \
18 deprecated. The installed cmake files should be used \
19 instead. CMake should be able to detect your LLVM install \
20 automatically, but you can also use LLVM_DIR to specify \
21 the path containing LLVMConfig.cmake.")
22 set(CONFIG_COMMAND ${LLVM_CONFIG}
31 COMMAND ${CONFIG_COMMAND}
32 RESULT_VARIABLE HAD_ERROR
33 OUTPUT_VARIABLE CONFIG_OUTPUT
37 "[ \t]*[\r\n]+[ \t]*" ";"
38 CONFIG_OUTPUT ${CONFIG_OUTPUT})
40 string(REPLACE ";" " " CONFIG_COMMAND_STR "${CONFIG_COMMAND}")
41 message(STATUS "${CONFIG_COMMAND_STR}")
42 message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
45 list(GET CONFIG_OUTPUT 0 ENABLE_ASSERTIONS)
46 list(GET CONFIG_OUTPUT 1 TOOLS_BINARY_DIR)
47 list(GET CONFIG_OUTPUT 2 LIBRARY_DIR)
48 list(GET CONFIG_OUTPUT 3 INCLUDE_DIR)
49 list(GET CONFIG_OUTPUT 4 LLVM_OBJ_ROOT)
50 list(GET CONFIG_OUTPUT 5 MAIN_SRC_DIR)
51 list(GET CONFIG_OUTPUT 6 LLVM_CONFIG_CMAKE_PATH)
53 # Normalize LLVM_CMAKE_PATH. --cmakedir might contain backslashes.
54 # CMake assumes slashes as PATH.
55 file(TO_CMAKE_PATH ${LLVM_CONFIG_CMAKE_PATH} LLVM_CMAKE_PATH)
60 set(LLVM_ENABLE_ASSERTIONS ${ENABLE_ASSERTIONS}
61 CACHE BOOL "Enable assertions")
62 # Assertions should follow llvm-config's.
63 mark_as_advanced(LLVM_ENABLE_ASSERTIONS)
66 find_package(LLVM REQUIRED HINTS "${LLVM_CMAKE_PATH}")
67 list(APPEND CMAKE_MODULE_PATH ${LLVM_DIR})
69 # We can't check LLVM_CONFIG here, because find_package(LLVM ...) also sets
71 if (NOT LLVM_CONFIG_FOUND)
72 # Pull values from LLVMConfig.cmake. We can drop this once the llvm-config
74 set(TOOLS_BINARY_DIR ${LLVM_TOOLS_BINARY_DIR})
75 set(LIBRARY_DIR ${LLVM_LIBRARY_DIR})
76 set(INCLUDE_DIR ${LLVM_INCLUDE_DIR})
77 set(LLVM_OBJ_DIR ${LLVM_BINARY_DIR})
80 set(LLVM_TOOLS_BINARY_DIR ${TOOLS_BINARY_DIR} CACHE PATH "Path to llvm/bin")
81 set(LLVM_LIBRARY_DIR ${LIBRARY_DIR} CACHE PATH "Path to llvm/lib")
82 set(LLVM_MAIN_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include")
83 set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree")
84 set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree")
86 find_program(LLVM_TABLEGEN_EXE "llvm-tblgen" ${LLVM_TOOLS_BINARY_DIR}
89 # They are used as destination of target generators.
90 set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin)
91 set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX})
93 # DLL platform -- put DLLs into bin.
94 set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
96 set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
99 option(LLVM_ENABLE_WARNINGS "Enable compiler warnings." ON)
100 option(LLVM_INSTALL_TOOLCHAIN_ONLY
101 "Only include toolchain files in the 'install' target." OFF)
103 option(LLVM_FORCE_USE_OLD_HOST_TOOLCHAIN
104 "Set to ON to force using an old, unsupported host toolchain." OFF)
105 option(CLANG_ENABLE_BOOTSTRAP "Generate the clang bootstrap target" OFF)
106 option(LLVM_ENABLE_LIBXML2 "Use libxml2 if available." ON)
110 include(HandleLLVMOptions)
111 include(VersionFromVCS)
113 set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
115 if (NOT DEFINED LLVM_INCLUDE_TESTS)
116 set(LLVM_INCLUDE_TESTS ON)
119 include_directories("${LLVM_BINARY_DIR}/include" "${LLVM_MAIN_INCLUDE_DIR}")
120 link_directories("${LLVM_LIBRARY_DIR}")
122 set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin )
123 set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
124 set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
126 if(LLVM_INCLUDE_TESTS)
127 set(Python_ADDITIONAL_VERSIONS 2.7)
128 include(FindPythonInterp)
129 if(NOT PYTHONINTERP_FOUND)
131 "Unable to find Python interpreter, required for builds and testing.
133 Please install Python or specify the PYTHON_EXECUTABLE CMake variable.")
136 if( ${PYTHON_VERSION_STRING} VERSION_LESS 2.7 )
137 message(FATAL_ERROR "Python 2.7 or newer is required")
140 # Check prebuilt llvm/utils.
141 if(EXISTS ${LLVM_TOOLS_BINARY_DIR}/FileCheck${CMAKE_EXECUTABLE_SUFFIX}
142 AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/count${CMAKE_EXECUTABLE_SUFFIX}
143 AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/not${CMAKE_EXECUTABLE_SUFFIX})
144 set(LLVM_UTILS_PROVIDED ON)
147 if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
148 # Note: path not really used, except for checking if lit was found
149 set(LLVM_LIT ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
150 if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/llvm-lit)
151 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/llvm-lit utils/llvm-lit)
153 if(NOT LLVM_UTILS_PROVIDED)
154 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/FileCheck utils/FileCheck)
155 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/count utils/count)
156 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/not utils/not)
157 set(LLVM_UTILS_PROVIDED ON)
158 set(CLANG_TEST_DEPS FileCheck count not)
160 set(UNITTEST_DIR ${LLVM_MAIN_SRC_DIR}/utils/unittest)
161 if(EXISTS ${UNITTEST_DIR}/googletest/include/gtest/gtest.h
162 AND NOT EXISTS ${LLVM_LIBRARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}gtest${CMAKE_STATIC_LIBRARY_SUFFIX}
163 AND EXISTS ${UNITTEST_DIR}/CMakeLists.txt)
164 add_subdirectory(${UNITTEST_DIR} utils/unittest)
167 # Seek installed Lit.
168 find_program(LLVM_LIT
169 NAMES llvm-lit lit.py lit
170 PATHS "${LLVM_MAIN_SRC_DIR}/utils/lit"
171 DOC "Path to lit.py")
175 # Define the default arguments to use with 'lit', and an option for the user
177 set(LIT_ARGS_DEFAULT "-sv")
179 set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
181 set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")
183 # On Win32 hosts, provide an option to specify the path to the GnuWin32 tools.
184 if( WIN32 AND NOT CYGWIN )
185 set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")
188 set(LLVM_INCLUDE_TESTS OFF)
192 set( CLANG_BUILT_STANDALONE 1 )
193 set(BACKEND_PACKAGE_STRING "LLVM ${LLVM_PACKAGE_VERSION}")
195 set(BACKEND_PACKAGE_STRING "${PACKAGE_STRING}")
198 # Make sure that our source directory is on the current cmake module path so that
199 # we can include cmake files from this directory.
200 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")
202 if(LLVM_ENABLE_LIBXML2)
203 # Don't look for libxml if we're using MSan, since uninstrumented third party
204 # code may call MSan interceptors like strlen, leading to false positives.
205 if(NOT LLVM_USE_SANITIZER MATCHES "Memory.*")
206 set (LIBXML2_FOUND 0)
207 find_package(LibXml2 2.5.3 QUIET)
209 set(CLANG_HAVE_LIBXML 1)
214 include(CheckIncludeFile)
215 check_include_file(sys/resource.h CLANG_HAVE_RLIMITS)
217 set(CLANG_RESOURCE_DIR "" CACHE STRING
218 "Relative directory from the Clang binary to its resource files.")
220 set(C_INCLUDE_DIRS "" CACHE STRING
221 "Colon separated list of directories clang will search for headers.")
223 set(GCC_INSTALL_PREFIX "" CACHE PATH "Directory where gcc is installed." )
224 set(DEFAULT_SYSROOT "" CACHE PATH
225 "Default <path> to all compiler invocations for --sysroot=<path>." )
227 set(ENABLE_LINKER_BUILD_ID OFF CACHE BOOL "pass --build-id to ld")
229 set(ENABLE_X86_RELAX_RELOCATIONS OFF CACHE BOOL
230 "enable x86 relax relocations by default")
232 set(ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER FALSE CACHE BOOL
233 "Enable the experimental new pass manager by default.")
235 # TODO: verify the values against LangStandards.def?
236 set(CLANG_DEFAULT_STD_C "" CACHE STRING
237 "Default standard to use for C/ObjC code (IDENT from LangStandards.def, empty for platform default)")
238 set(CLANG_DEFAULT_STD_CXX "" CACHE STRING
239 "Default standard to use for C++/ObjC++ code (IDENT from LangStandards.def, empty for platform default)")
241 set(CLANG_DEFAULT_LINKER "" CACHE STRING
242 "Default linker to use (linker name or absolute path, empty for platform default)")
244 set(CLANG_DEFAULT_CXX_STDLIB "" CACHE STRING
245 "Default C++ stdlib to use (\"libstdc++\" or \"libc++\", empty for platform default")
246 if (NOT(CLANG_DEFAULT_CXX_STDLIB STREQUAL "" OR
247 CLANG_DEFAULT_CXX_STDLIB STREQUAL "libstdc++" OR
248 CLANG_DEFAULT_CXX_STDLIB STREQUAL "libc++"))
249 message(WARNING "Resetting default C++ stdlib to use platform default")
250 set(CLANG_DEFAULT_CXX_STDLIB "" CACHE STRING
251 "Default C++ stdlib to use (\"libstdc++\" or \"libc++\", empty for platform default" FORCE)
254 set(CLANG_DEFAULT_RTLIB "" CACHE STRING
255 "Default runtime library to use (\"libgcc\" or \"compiler-rt\", empty for platform default)")
256 if (NOT(CLANG_DEFAULT_RTLIB STREQUAL "" OR
257 CLANG_DEFAULT_RTLIB STREQUAL "libgcc" OR
258 CLANG_DEFAULT_RTLIB STREQUAL "compiler-rt"))
259 message(WARNING "Resetting default rtlib to use platform default")
260 set(CLANG_DEFAULT_RTLIB "" CACHE STRING
261 "Default runtime library to use (\"libgcc\" or \"compiler-rt\", empty for platform default)" FORCE)
264 set(CLANG_DEFAULT_OBJCOPY "objcopy" CACHE STRING
265 "Default objcopy executable to use.")
267 set(CLANG_DEFAULT_OPENMP_RUNTIME "libomp" CACHE STRING
268 "Default OpenMP runtime used by -fopenmp.")
270 # OpenMP offloading requires at least sm_35 because we use shuffle instructions
271 # to generate efficient code for reductions and the atomicMax instruction on
272 # 64-bit integers in the implementation of conditional lastprivate.
273 set(CLANG_OPENMP_NVPTX_DEFAULT_ARCH "sm_35" CACHE STRING
274 "Default architecture for OpenMP offloading to Nvidia GPUs.")
275 string(REGEX MATCH "^sm_([0-9]+)$" MATCHED_ARCH "${CLANG_OPENMP_NVPTX_DEFAULT_ARCH}")
276 if (NOT DEFINED MATCHED_ARCH OR "${CMAKE_MATCH_1}" LESS 35)
277 message(WARNING "Resetting default architecture for OpenMP offloading to Nvidia GPUs to sm_35")
278 set(CLANG_OPENMP_NVPTX_DEFAULT_ARCH "sm_35" CACHE STRING
279 "Default architecture for OpenMP offloading to Nvidia GPUs." FORCE)
282 set(CLANG_VENDOR ${PACKAGE_VENDOR} CACHE STRING
283 "Vendor-specific text for showing with version information.")
286 add_definitions( -DCLANG_VENDOR="${CLANG_VENDOR} " )
289 set(CLANG_REPOSITORY_STRING "" CACHE STRING
290 "Vendor-specific text for showing the repository the source is taken from.")
292 if(CLANG_REPOSITORY_STRING)
293 add_definitions(-DCLANG_REPOSITORY_STRING="${CLANG_REPOSITORY_STRING}")
296 set(CLANG_VENDOR_UTI "org.llvm.clang" CACHE STRING
297 "Vendor-specific uti.")
299 set(CLANG_PYTHON_BINDINGS_VERSIONS "" CACHE STRING
300 "Python versions to install libclang python bindings for")
302 # The libdir suffix must exactly match whatever LLVM's configuration used.
303 set(CLANG_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}")
305 set(CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
306 set(CLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
308 if( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE )
309 message(FATAL_ERROR "In-source builds are not allowed. "
310 "Please create a directory and run cmake "
311 "from there, passing the path to this source directory as the last argument. "
312 "This process created the file `CMakeCache.txt' and the directory "
313 "`CMakeFiles'. Please delete them.")
316 # If CLANG_VERSION_* is specified, use it, if not use LLVM_VERSION_*.
317 if(NOT DEFINED CLANG_VERSION_MAJOR)
318 set(CLANG_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
320 if(NOT DEFINED CLANG_VERSION_MINOR)
321 set(CLANG_VERSION_MINOR ${LLVM_VERSION_MINOR})
323 if(NOT DEFINED CLANG_VERSION_PATCHLEVEL)
324 set(CLANG_VERSION_PATCHLEVEL ${LLVM_VERSION_PATCH})
326 # Unlike PACKAGE_VERSION, CLANG_VERSION does not include LLVM_VERSION_SUFFIX.
327 set(CLANG_VERSION "${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}.${CLANG_VERSION_PATCHLEVEL}")
328 message(STATUS "Clang version: ${CLANG_VERSION}")
330 # Configure the Version.inc file.
332 ${CMAKE_CURRENT_SOURCE_DIR}/include/clang/Basic/Version.inc.in
333 ${CMAKE_CURRENT_BINARY_DIR}/include/clang/Basic/Version.inc)
335 # Add appropriate flags for GCC
336 if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
337 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-common -Woverloaded-virtual")
338 if (NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
339 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-strict-aliasing")
342 # Enable -pedantic for Clang even if it's not enabled for LLVM.
343 if (NOT LLVM_ENABLE_PEDANTIC)
344 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic -Wno-long-long")
347 check_cxx_compiler_flag("-Werror -Wnested-anon-types" CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG)
348 if( CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG )
349 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-nested-anon-types" )
353 # Determine HOST_LINK_VERSION on Darwin.
354 set(HOST_LINK_VERSION)
358 COMMAND sh -c "${CMAKE_LINKER} -v 2>&1 | head -1"
359 RESULT_VARIABLE HAD_ERROR
360 OUTPUT_VARIABLE LD_V_OUTPUT
363 if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*")
364 string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
365 elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]+).*")
366 string(REGEX REPLACE "[^0-9]*([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
369 message(FATAL_ERROR "${CMAKE_LINKER} failed with status ${HAD_ERROR}")
373 include(CMakeParseArguments)
376 set(CMAKE_INCLUDE_CURRENT_DIR ON)
378 include_directories(BEFORE
379 ${CMAKE_CURRENT_BINARY_DIR}/include
380 ${CMAKE_CURRENT_SOURCE_DIR}/include
383 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
384 install(DIRECTORY include/clang include/clang-c
389 PATTERN "config.h" EXCLUDE
390 PATTERN ".svn" EXCLUDE
393 install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/clang
396 PATTERN "CMakeFiles" EXCLUDE
401 install(PROGRAMS utils/bash-autocomplete.sh
402 DESTINATION share/clang
406 add_definitions( -D_GNU_SOURCE )
408 option(CLANG_BUILD_TOOLS
409 "Build the Clang tools. If OFF, just generate build targets." ON)
411 option(CLANG_ENABLE_ARCMT "Build ARCMT." ON)
412 option(CLANG_ENABLE_STATIC_ANALYZER "Build static analyzer." ON)
414 set(CLANG_ANALYZER_Z3_INSTALL_DIR "" CACHE STRING "Install directory of the Z3 solver.")
416 find_package(Z3 4.7.1)
418 if (CLANG_ANALYZER_Z3_INSTALL_DIR)
420 message(FATAL_ERROR "Z3 4.7.1 has not been found in CLANG_ANALYZER_Z3_INSTALL_DIR: ${CLANG_ANALYZER_Z3_INSTALL_DIR}.")
424 set(CLANG_ANALYZER_ENABLE_Z3_SOLVER_DEFAULT "${Z3_FOUND}")
426 option(CLANG_ANALYZER_ENABLE_Z3_SOLVER
427 "Enable Support for the Z3 constraint solver in the Clang Static Analyzer."
428 ${CLANG_ANALYZER_ENABLE_Z3_SOLVER_DEFAULT}
431 if (CLANG_ANALYZER_ENABLE_Z3_SOLVER)
433 message(FATAL_ERROR "CLANG_ANALYZER_ENABLE_Z3_SOLVER cannot be enabled when Z3 is not available.")
436 set(CLANG_ANALYZER_WITH_Z3 1)
439 option(CLANG_ENABLE_PROTO_FUZZER "Build Clang protobuf fuzzer." OFF)
441 if(NOT CLANG_ENABLE_STATIC_ANALYZER AND (CLANG_ENABLE_ARCMT OR CLANG_ANALYZER_ENABLE_Z3_SOLVER))
442 message(FATAL_ERROR "Cannot disable static analyzer while enabling ARCMT or Z3")
445 if(CLANG_ENABLE_ARCMT)
446 set(CLANG_ENABLE_OBJC_REWRITER ON)
449 # Clang version information
450 set(CLANG_EXECUTABLE_VERSION
451 "${CLANG_VERSION_MAJOR}" CACHE STRING
452 "Major version number that will be appended to the clang executable name")
453 set(LIBCLANG_LIBRARY_VERSION
454 "${CLANG_VERSION_MAJOR}" CACHE STRING
455 "Major version number that will be appended to the libclang library")
456 mark_as_advanced(CLANG_EXECUTABLE_VERSION LIBCLANG_LIBRARY_VERSION)
458 option(CLANG_INCLUDE_TESTS
459 "Generate build targets for the Clang unit tests."
460 ${LLVM_INCLUDE_TESTS})
462 add_subdirectory(utils/TableGen)
464 add_subdirectory(include)
466 # All targets below may depend on all tablegen'd files.
467 get_property(CLANG_TABLEGEN_TARGETS GLOBAL PROPERTY CLANG_TABLEGEN_TARGETS)
468 add_custom_target(clang-tablegen-targets DEPENDS ${CLANG_TABLEGEN_TARGETS})
469 set_target_properties(clang-tablegen-targets PROPERTIES FOLDER "Misc")
470 list(APPEND LLVM_COMMON_DEPENDS clang-tablegen-targets)
472 # Force target to be built as soon as possible. Clang modules builds depend
473 # header-wise on it as they ship all headers from the umbrella folders. Building
474 # an entire module might include header, which depends on intrinsics_gen.
475 if(LLVM_ENABLE_MODULES AND NOT CLANG_BUILT_STANDALONE)
476 list(APPEND LLVM_COMMON_DEPENDS intrinsics_gen)
479 add_subdirectory(lib)
480 add_subdirectory(tools)
481 add_subdirectory(runtime)
483 option(CLANG_BUILD_EXAMPLES "Build CLANG example programs by default." OFF)
484 add_subdirectory(examples)
487 # this line is needed as a cleanup to ensure that any CMakeCaches with the old
488 # default value get updated to the new default.
489 if(CLANG_ORDER_FILE STREQUAL "")
490 unset(CLANG_ORDER_FILE CACHE)
491 unset(CLANG_ORDER_FILE)
495 set(CLANG_ORDER_FILE ${CMAKE_CURRENT_BINARY_DIR}/clang.order CACHE FILEPATH
496 "Order file to use when compiling clang in order to improve startup time (Darwin Only - requires ld64).")
498 if(NOT EXISTS ${CLANG_ORDER_FILE})
499 string(FIND "${CLANG_ORDER_FILE}" "${CMAKE_CURRENT_BINARY_DIR}" PATH_START)
500 if(PATH_START EQUAL 0)
501 file(WRITE ${CLANG_ORDER_FILE} "\n")
503 message(FATAL_ERROR "Specified order file '${CLANG_ORDER_FILE}' does not exist.")
509 if( CLANG_INCLUDE_TESTS )
510 if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest/include/gtest/gtest.h)
511 add_subdirectory(unittests)
512 list(APPEND CLANG_TEST_DEPS ClangUnitTests)
513 list(APPEND CLANG_TEST_PARAMS
514 clang_unit_site_config=${CMAKE_CURRENT_BINARY_DIR}/test/Unit/lit.site.cfg
517 add_subdirectory(test)
518 add_subdirectory(bindings/python/tests)
520 if(CLANG_BUILT_STANDALONE)
521 # Add a global check rule now that all subdirectories have been traversed
522 # and we know the total set of lit testsuites.
523 get_property(LLVM_LIT_TESTSUITES GLOBAL PROPERTY LLVM_LIT_TESTSUITES)
524 get_property(LLVM_LIT_PARAMS GLOBAL PROPERTY LLVM_LIT_PARAMS)
525 get_property(LLVM_LIT_DEPENDS GLOBAL PROPERTY LLVM_LIT_DEPENDS)
526 get_property(LLVM_LIT_EXTRA_ARGS GLOBAL PROPERTY LLVM_LIT_EXTRA_ARGS)
527 get_property(LLVM_ADDITIONAL_TEST_TARGETS
528 GLOBAL PROPERTY LLVM_ADDITIONAL_TEST_TARGETS)
529 add_lit_target(check-all
530 "Running all regression tests"
531 ${LLVM_LIT_TESTSUITES}
532 PARAMS ${LLVM_LIT_PARAMS}
533 DEPENDS ${LLVM_LIT_DEPENDS} ${LLVM_ADDITIONAL_TEST_TARGETS}
534 ARGS ${LLVM_LIT_EXTRA_ARGS}
537 add_subdirectory(utils/perf-training)
540 option(CLANG_INCLUDE_DOCS "Generate build targets for the Clang docs."
541 ${LLVM_INCLUDE_DOCS})
542 if( CLANG_INCLUDE_DOCS )
543 add_subdirectory(docs)
546 add_subdirectory(cmake/modules)
549 message(STATUS "Setting current clang stage to: ${CLANG_STAGE}")
552 if (CLANG_ENABLE_BOOTSTRAP)
553 include(ExternalProject)
555 add_custom_target(clang-bootstrap-deps DEPENDS clang)
558 set(CLANG_STAGE stage1)
561 string(REGEX MATCH "stage([0-9]*)" MATCHED_STAGE "${CLANG_STAGE}")
563 if(NOT LLVM_BUILD_INSTRUMENTED)
564 math(EXPR STAGE_NUM "${CMAKE_MATCH_1} + 1")
565 set(NEXT_CLANG_STAGE stage${STAGE_NUM})
567 set(NEXT_CLANG_STAGE stage${CMAKE_MATCH_1})
570 set(NEXT_CLANG_STAGE bootstrap)
573 if(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED)
574 set(NEXT_CLANG_STAGE ${NEXT_CLANG_STAGE}-instrumented)
576 message(STATUS "Setting next clang stage to: ${NEXT_CLANG_STAGE}")
579 set(STAMP_DIR ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-stamps/)
580 set(BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-bins/)
582 if(BOOTSTRAP_LLVM_ENABLE_LLD)
583 add_dependencies(clang-bootstrap-deps lld)
586 # If the next stage is LTO we need to depend on LTO and possibly lld or LLVMgold
587 if(BOOTSTRAP_LLVM_ENABLE_LTO OR LLVM_ENABLE_LTO AND NOT LLVM_BUILD_INSTRUMENTED)
589 add_dependencies(clang-bootstrap-deps LTO)
590 # on Darwin we need to set DARWIN_LTO_LIBRARY so that -flto will work
591 # using the just-built compiler, and we need to override DYLD_LIBRARY_PATH
592 # so that the host object file tools will use the just-built libLTO.
593 # However if System Integrity Protection is enabled the DYLD variables
594 # will be scrubbed from the environment of any base system commands. This
595 # includes /bin/sh, which ninja uses when executing build commands. To
596 # work around the envar being filtered away we pass it in as a CMake
597 # variable, and have LLVM's CMake append the envar to the archiver calls.
598 set(LTO_LIBRARY -DDARWIN_LTO_LIBRARY=${LLVM_SHLIB_OUTPUT_INTDIR}/libLTO.dylib
599 -DDYLD_LIBRARY_PATH=${LLVM_LIBRARY_OUTPUT_INTDIR})
601 add_dependencies(clang-bootstrap-deps llvm-ar llvm-ranlib)
602 if(NOT BOOTSTRAP_LLVM_ENABLE_LLD AND LLVM_BINUTILS_INCDIR)
603 add_dependencies(clang-bootstrap-deps LLVMgold)
605 set(${CLANG_STAGE}_AR -DCMAKE_AR=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ar)
606 set(${CLANG_STAGE}_RANLIB -DCMAKE_RANLIB=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ranlib)
610 if(CLANG_BOOTSTRAP_EXTRA_DEPS)
611 add_dependencies(clang-bootstrap-deps ${CLANG_BOOTSTRAP_EXTRA_DEPS})
614 add_custom_target(${NEXT_CLANG_STAGE}-clear
615 DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-cleared
618 OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-cleared
619 DEPENDS clang-bootstrap-deps
620 COMMAND ${CMAKE_COMMAND} -E remove_directory ${BINARY_DIR}
621 COMMAND ${CMAKE_COMMAND} -E make_directory ${BINARY_DIR}
622 COMMAND ${CMAKE_COMMAND} -E remove_directory ${STAMP_DIR}
623 COMMAND ${CMAKE_COMMAND} -E make_directory ${STAMP_DIR}
624 COMMENT "Clobberring ${NEXT_CLANG_STAGE} build and stamp directories"
627 if(CMAKE_VERBOSE_MAKEFILE)
628 set(verbose -DCMAKE_VERBOSE_MAKEFILE=On)
631 set(_BOOTSTRAP_DEFAULT_PASSTHROUGH
639 CLANG_VERSION_PATCHLEVEL
642 CLANG_REPOSITORY_STRING
644 CMAKE_OSX_ARCHITECTURES
646 LLVM_ENABLE_RUNTIMES)
648 # We don't need to depend on compiler-rt/libcxx if we're building instrumented
649 # because the next stage will use the same compiler used to build this stage.
650 if(NOT LLVM_BUILD_INSTRUMENTED)
651 if(TARGET compiler-rt)
652 add_dependencies(clang-bootstrap-deps compiler-rt)
654 if(TARGET cxx-headers)
655 add_dependencies(clang-bootstrap-deps cxx-headers)
659 set(C_COMPILER "clang")
660 set(CXX_COMPILER "clang++")
662 set(C_COMPILER "clang-cl.exe")
663 set(CXX_COMPILER "clang-cl.exe")
667 -DCMAKE_CXX_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${CXX_COMPILER}
668 -DCMAKE_C_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${C_COMPILER}
669 -DCMAKE_ASM_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${C_COMPILER}
670 -DCMAKE_ASM_COMPILER_ID=Clang)
672 if(BOOTSTRAP_CMAKE_SYSTEM_NAME)
673 set(${CLANG_STAGE}_CONFIG -DLLVM_CONFIG_PATH=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-config)
674 set(${CLANG_STAGE}_TABLEGEN
675 -DLLVM_TABLEGEN=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-tblgen
676 -DCLANG_TABLEGEN=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang-tblgen)
677 if(BOOTSTRAP_CMAKE_SYSTEM_NAME STREQUAL "Linux")
678 if(BOOTSTRAP_LLVM_ENABLE_LLD)
679 set(${CLANG_STAGE}_LINKER -DCMAKE_LINKER=${LLVM_RUNTIME_OUTPUT_INTDIR}/ld.lld)
681 if(NOT BOOTSTRAP_LLVM_ENABLE_LTO)
682 add_dependencies(clang-bootstrap-deps llvm-ar llvm-ranlib)
683 set(${CLANG_STAGE}_AR -DCMAKE_AR=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ar)
684 set(${CLANG_STAGE}_RANLIB -DCMAKE_RANLIB=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ranlib)
686 add_dependencies(clang-bootstrap-deps llvm-objcopy llvm-strip)
687 set(${CLANG_STAGE}_OBJCOPY -DCMAKE_OBJCOPY=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-objcopy)
688 set(${CLANG_STAGE}_STRIP -DCMAKE_STRIP=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-strip)
692 if(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED)
693 add_dependencies(clang-bootstrap-deps llvm-profdata)
694 set(PGO_OPT -DLLVM_PROFDATA=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-profdata)
697 if(LLVM_BUILD_INSTRUMENTED)
698 add_dependencies(clang-bootstrap-deps generate-profdata)
699 set(PGO_OPT -DLLVM_PROFDATA_FILE=${CMAKE_CURRENT_BINARY_DIR}/utils/perf-training/clang.profdata)
700 # Use the current tools for LTO instead of the instrumented ones
701 list(APPEND _BOOTSTRAP_DEFAULT_PASSTHROUGH
710 set(COMPILER_OPTIONS)
716 # Find all variables that start with BOOTSTRAP_ and populate a variable with
718 get_cmake_property(variableNames VARIABLES)
719 foreach(variableName ${variableNames})
720 if(variableName MATCHES "^BOOTSTRAP_")
721 string(SUBSTRING ${variableName} 10 -1 varName)
722 string(REPLACE ";" "|" value "${${variableName}}")
723 list(APPEND PASSTHROUGH_VARIABLES
724 -D${varName}=${value})
726 if(${variableName} AND variableName MATCHES "LLVM_EXTERNAL_.*_SOURCE_DIR")
727 list(APPEND PASSTHROUGH_VARIABLES
728 -D${variableName}=${${variableName}})
732 # Populate the passthrough variables
733 foreach(variableName ${CLANG_BOOTSTRAP_PASSTHROUGH} ${_BOOTSTRAP_DEFAULT_PASSTHROUGH})
734 if(DEFINED ${variableName})
735 if("${${variableName}}" STREQUAL "")
738 string(REPLACE ";" "|" value "${${variableName}}")
740 list(APPEND PASSTHROUGH_VARIABLES
741 -D${variableName}=${value})
745 ExternalProject_Add(${NEXT_CLANG_STAGE}
746 DEPENDS clang-bootstrap-deps
747 PREFIX ${NEXT_CLANG_STAGE}
748 SOURCE_DIR ${CMAKE_SOURCE_DIR}
749 STAMP_DIR ${STAMP_DIR}
750 BINARY_DIR ${BINARY_DIR}
753 # We shouldn't need to set this here, but INSTALL_DIR doesn't
754 # seem to work, so instead I'm passing this through
755 -DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}
756 ${CLANG_BOOTSTRAP_CMAKE_ARGS}
757 ${PASSTHROUGH_VARIABLES}
758 -DCLANG_STAGE=${NEXT_CLANG_STAGE}
760 ${${CLANG_STAGE}_CONFIG}
761 ${${CLANG_STAGE}_TABLEGEN}
762 ${LTO_LIBRARY} ${verbose} ${PGO_OPT}
763 ${${CLANG_STAGE}_LINKER}
765 ${${CLANG_STAGE}_RANLIB}
766 ${${CLANG_STAGE}_OBJCOPY}
767 ${${CLANG_STAGE}_STRIP}
769 STEP_TARGETS configure build
770 USES_TERMINAL_CONFIGURE 1
771 USES_TERMINAL_BUILD 1
772 USES_TERMINAL_INSTALL 1
776 # exclude really-install from main target
777 set_target_properties(${NEXT_CLANG_STAGE} PROPERTIES _EP_really-install_EXCLUDE_FROM_MAIN On)
778 ExternalProject_Add_Step(${NEXT_CLANG_STAGE} really-install
779 COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --target install
780 COMMENT "Performing install step for '${NEXT_CLANG_STAGE}'"
784 ExternalProject_Add_StepTargets(${NEXT_CLANG_STAGE} really-install)
785 add_custom_target(${NEXT_CLANG_STAGE}-install DEPENDS ${NEXT_CLANG_STAGE}-really-install)
787 if(NOT CLANG_BOOTSTRAP_TARGETS)
788 set(CLANG_BOOTSTRAP_TARGETS check-llvm check-clang check-all)
790 foreach(target ${CLANG_BOOTSTRAP_TARGETS})
791 # exclude from main target
792 set_target_properties(${NEXT_CLANG_STAGE} PROPERTIES _EP_${target}_EXCLUDE_FROM_MAIN On)
794 ExternalProject_Add_Step(${NEXT_CLANG_STAGE} ${target}
795 COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --target ${target}
796 COMMENT "Performing ${target} for '${NEXT_CLANG_STAGE}'"
801 if(target MATCHES "^stage[0-9]*")
802 add_custom_target(${target} DEPENDS ${NEXT_CLANG_STAGE}-${target})
805 ExternalProject_Add_StepTargets(${NEXT_CLANG_STAGE} ${target})
809 if (LLVM_ADD_NATIVE_VISUALIZERS_TO_SOLUTION)
810 add_subdirectory(utils/ClangVisualizers)
812 add_subdirectory(utils/hmaptool)
815 ${CLANG_SOURCE_DIR}/include/clang/Config/config.h.cmake
816 ${CLANG_BINARY_DIR}/include/clang/Config/config.h)