1 cmake_minimum_required(VERSION 2.8.8)
3 # FIXME: It may be removed when we use 2.8.12.
4 if(CMAKE_VERSION VERSION_LESS 2.8.12)
5 # Invalidate a couple of keywords.
6 set(cmake_2_8_12_INTERFACE)
7 set(cmake_2_8_12_PRIVATE)
9 # Use ${cmake_2_8_12_KEYWORD} intead of KEYWORD in target_link_libraries().
10 set(cmake_2_8_12_INTERFACE INTERFACE)
11 set(cmake_2_8_12_PRIVATE PRIVATE)
13 cmake_policy(SET CMP0022 NEW) # automatic when 2.8.12 is required
17 # If we are not building as a part of LLVM, build Clang as an
18 # standalone project, using LLVM as an external library:
19 if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )
22 # Rely on llvm-config.
24 find_program(LLVM_CONFIG "llvm-config")
26 message(STATUS "Found LLVM_CONFIG as ${LLVM_CONFIG}")
27 set(CONFIG_COMMAND ${LLVM_CONFIG}
35 COMMAND ${CONFIG_COMMAND}
36 RESULT_VARIABLE HAD_ERROR
37 OUTPUT_VARIABLE CONFIG_OUTPUT
41 "[ \t]*[\r\n]+[ \t]*" ";"
42 CONFIG_OUTPUT ${CONFIG_OUTPUT})
44 string(REPLACE ";" " " CONFIG_COMMAND_STR "${CONFIG_COMMAND}")
45 message(STATUS "${CONFIG_COMMAND_STR}")
46 message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
49 message(FATAL_ERROR "llvm-config not found -- ${LLVM_CONFIG}")
52 list(GET CONFIG_OUTPUT 0 ENABLE_ASSERTIONS)
53 list(GET CONFIG_OUTPUT 1 TOOLS_BINARY_DIR)
54 list(GET CONFIG_OUTPUT 2 LIBRARY_DIR)
55 list(GET CONFIG_OUTPUT 3 INCLUDE_DIR)
56 list(GET CONFIG_OUTPUT 4 LLVM_OBJ_ROOT)
57 list(GET CONFIG_OUTPUT 5 MAIN_SRC_DIR)
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 set(LLVM_TOOLS_BINARY_DIR ${TOOLS_BINARY_DIR} CACHE PATH "Path to llvm/bin")
67 set(LLVM_LIBRARY_DIR ${LIBRARY_DIR} CACHE PATH "Path to llvm/lib")
68 set(LLVM_MAIN_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include")
69 set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree")
70 set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree")
72 find_program(LLVM_TABLEGEN_EXE "llvm-tblgen" ${LLVM_TOOLS_BINARY_DIR}
75 set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/share/llvm/cmake")
76 set(LLVMCONFIG_FILE "${LLVM_CMAKE_PATH}/LLVMConfig.cmake")
77 if(EXISTS ${LLVMCONFIG_FILE})
78 list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
79 include(${LLVMCONFIG_FILE})
81 message(FATAL_ERROR "Not found: ${LLVMCONFIG_FILE}")
84 # They are used as destination of target generators.
85 set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin)
86 set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib)
88 option(LLVM_INSTALL_TOOLCHAIN_ONLY
89 "Only include toolchain files in the 'install' target." OFF)
91 option(LLVM_FORCE_USE_OLD_HOST_TOOLCHAIN
92 "Set to ON to force using an old, unsupported host toolchain." OFF)
96 include(HandleLLVMOptions)
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 )
109 set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib )
111 if(LLVM_INCLUDE_TESTS)
112 # Check prebuilt llvm/utils.
113 if(EXISTS ${LLVM_TOOLS_BINARY_DIR}/FileCheck${CMAKE_EXECUTABLE_SUFFIX}
114 AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/count${CMAKE_EXECUTABLE_SUFFIX}
115 AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/not${CMAKE_EXECUTABLE_SUFFIX})
116 set(LLVM_UTILS_PROVIDED ON)
119 if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
120 set(LLVM_LIT ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
121 if(NOT LLVM_UTILS_PROVIDED)
122 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/FileCheck utils/FileCheck)
123 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/count utils/count)
124 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/not utils/not)
125 set(LLVM_UTILS_PROVIDED ON)
126 set(CLANG_TEST_DEPS FileCheck count not)
128 set(UNITTEST_DIR ${LLVM_MAIN_SRC_DIR}/utils/unittest)
129 if(EXISTS ${UNITTEST_DIR}/googletest/include/gtest/gtest.h
130 AND NOT EXISTS ${LLVM_LIBRARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}gtest${CMAKE_STATIC_LIBRARY_SUFFIX}
131 AND EXISTS ${UNITTEST_DIR}/CMakeLists.txt)
132 add_subdirectory(${UNITTEST_DIR} utils/unittest)
135 # Seek installed Lit.
136 find_program(LLVM_LIT "lit.py" ${LLVM_MAIN_SRC_DIR}/utils/lit
137 DOC "Path to lit.py")
141 # Define the default arguments to use with 'lit', and an option for the user
143 set(LIT_ARGS_DEFAULT "-sv")
145 set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
147 set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")
149 # On Win32 hosts, provide an option to specify the path to the GnuWin32 tools.
150 if( WIN32 AND NOT CYGWIN )
151 set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")
154 set(LLVM_INCLUDE_TESTS OFF)
158 set( CLANG_BUILT_STANDALONE 1 )
159 set(BACKEND_PACKAGE_STRING "LLVM ${LLVM_PACKAGE_VERSION}")
161 set(BACKEND_PACKAGE_STRING "${PACKAGE_STRING}")
164 find_package(LibXml2)
166 set(CLANG_HAVE_LIBXML 1)
169 set(CLANG_RESOURCE_DIR "" CACHE STRING
170 "Relative directory from the Clang binary to its resource files.")
172 set(C_INCLUDE_DIRS "" CACHE STRING
173 "Colon separated list of directories clang will search for headers.")
175 set(GCC_INSTALL_PREFIX "" CACHE PATH "Directory where gcc is installed." )
176 set(DEFAULT_SYSROOT "" CACHE PATH
177 "Default <path> to all compiler invocations for --sysroot=<path>." )
179 set(CLANG_VENDOR "" CACHE STRING
180 "Vendor-specific text for showing with version information.")
183 add_definitions( -DCLANG_VENDOR="${CLANG_VENDOR} " )
186 set(CLANG_REPOSITORY_STRING "" CACHE STRING
187 "Vendor-specific text for showing the repository the source is taken from.")
189 if(CLANG_REPOSITORY_STRING)
190 add_definitions(-DCLANG_REPOSITORY_STRING="${CLANG_REPOSITORY_STRING}")
193 set(CLANG_VENDOR_UTI "org.llvm.clang" CACHE STRING
194 "Vendor-specific uti.")
196 set(CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
197 set(CLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
199 if( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE )
200 message(FATAL_ERROR "In-source builds are not allowed. CMake would overwrite "
201 "the makefiles distributed with LLVM. Please create a directory and run cmake "
202 "from there, passing the path to this source directory as the last argument. "
203 "This process created the file `CMakeCache.txt' and the directory "
204 "`CMakeFiles'. Please delete them.")
207 if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )
209 tablegenned_files_on_include_dir
210 "${CLANG_SOURCE_DIR}/include/clang/*.inc")
211 if( tablegenned_files_on_include_dir )
212 message(FATAL_ERROR "Apparently there is a previous in-source build, "
213 "probably as the result of running `configure' and `make' on "
214 "${CLANG_SOURCE_DIR}. This may cause problems. The suspicious files are:\n"
215 "${tablegenned_files_on_include_dir}\nPlease clean the source directory.")
219 # Compute the Clang version from the LLVM version.
220 string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" CLANG_VERSION
222 message(STATUS "Clang version: ${CLANG_VERSION}")
224 string(REGEX REPLACE "([0-9]+)\\.[0-9]+(\\.[0-9]+)?" "\\1" CLANG_VERSION_MAJOR
226 string(REGEX REPLACE "[0-9]+\\.([0-9]+)(\\.[0-9]+)?" "\\1" CLANG_VERSION_MINOR
228 if (${CLANG_VERSION} MATCHES "[0-9]+\\.[0-9]+\\.[0-9]+")
229 set(CLANG_HAS_VERSION_PATCHLEVEL 1)
230 string(REGEX REPLACE "[0-9]+\\.[0-9]+\\.([0-9]+)" "\\1" CLANG_VERSION_PATCHLEVEL
233 set(CLANG_HAS_VERSION_PATCHLEVEL 0)
236 # Configure the Version.inc file.
238 ${CMAKE_CURRENT_SOURCE_DIR}/include/clang/Basic/Version.inc.in
239 ${CMAKE_CURRENT_BINARY_DIR}/include/clang/Basic/Version.inc)
241 # Add appropriate flags for GCC
242 if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
243 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-common -Woverloaded-virtual -Wcast-qual -fno-strict-aliasing")
245 # Enable -pedantic for Clang even if it's not enabled for LLVM.
246 if (NOT LLVM_ENABLE_PEDANTIC)
247 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic -Wno-long-long")
250 check_cxx_compiler_flag("-Werror -Wnested-anon-types" CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG)
251 if( CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG )
252 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-nested-anon-types" )
257 ${CLANG_SOURCE_DIR}/include/clang/Config/config.h.cmake
258 ${CLANG_BINARY_DIR}/include/clang/Config/config.h)
260 include(CMakeParseArguments)
262 function(clang_tablegen)
264 # clang_tablegen output-file [tablegen-arg ...] SOURCE source-file
265 # [[TARGET cmake-target-name] [DEPENDS extra-dependency ...]]
267 # Generates a custom command for invoking tblgen as
269 # tblgen source-file -o=output-file tablegen-arg ...
271 # and, if cmake-target-name is provided, creates a custom target for
272 # executing the custom command depending on output-file. It is
273 # possible to list more files to depend after DEPENDS.
275 cmake_parse_arguments(CTG "" "SOURCE;TARGET" "" ${ARGN})
278 message(FATAL_ERROR "SOURCE source-file required by clang_tablegen")
281 set( LLVM_TARGET_DEFINITIONS ${CTG_SOURCE} )
282 tablegen(CLANG ${CTG_UNPARSED_ARGUMENTS})
285 add_public_tablegen_target(${CTG_TARGET})
286 set_target_properties( ${CTG_TARGET} PROPERTIES FOLDER "Clang tablegenning")
287 set_property(GLOBAL APPEND PROPERTY CLANG_TABLEGEN_TARGETS ${CTG_TARGET})
289 endfunction(clang_tablegen)
291 macro(add_clang_library name)
292 cmake_parse_arguments(ARG
298 if(MSVC_IDE OR XCODE)
300 file(RELATIVE_PATH lib_path
301 ${CLANG_SOURCE_DIR}/lib/
302 ${CMAKE_CURRENT_SOURCE_DIR}
304 if(NOT lib_path MATCHES "^[.][.]")
305 file( GLOB_RECURSE headers
306 ${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.h
307 ${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.def
309 set_source_files_properties(${headers} PROPERTIES HEADER_FILE_ONLY ON)
311 file( GLOB_RECURSE tds
312 ${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.td
314 source_group("TableGen descriptions" FILES ${tds})
315 set_source_files_properties(${tds}} PROPERTIES HEADER_FILE_ONLY ON)
318 set(srcs ${headers} ${tds})
321 endif(MSVC_IDE OR XCODE)
322 if(srcs OR ARG_ADDITIONAL_HEADERS)
326 ${ARG_ADDITIONAL_HEADERS} # It may contain unparsed unknown args.
329 llvm_add_library(${name} ${ARG_UNPARSED_ARGUMENTS} ${srcs})
332 target_link_libraries(${name} ${cmake_2_8_12_INTERFACE} ${LLVM_COMMON_LIBS})
334 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ${name} STREQUAL "libclang")
335 install(TARGETS ${name}
336 LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
337 ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX}
338 RUNTIME DESTINATION bin)
341 # Add empty "phony" target
342 add_custom_target(${name})
345 set_target_properties(${name} PROPERTIES FOLDER "Clang libraries")
346 endmacro(add_clang_library)
348 macro(add_clang_executable name)
349 add_llvm_executable( ${name} ${ARGN} )
350 set_target_properties(${name} PROPERTIES FOLDER "Clang executables")
351 endmacro(add_clang_executable)
353 set(CMAKE_INCLUDE_CURRENT_DIR ON)
355 include_directories(BEFORE
356 ${CMAKE_CURRENT_BINARY_DIR}/include
357 ${CMAKE_CURRENT_SOURCE_DIR}/include
360 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
361 install(DIRECTORY include/clang include/clang-c
366 PATTERN "config.h" EXCLUDE
367 PATTERN ".svn" EXCLUDE
370 install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/clang
373 PATTERN "CMakeFiles" EXCLUDE
378 install(DIRECTORY include/clang-c
382 PATTERN ".svn" EXCLUDE
385 add_definitions( -D_GNU_SOURCE )
387 option(CLANG_ENABLE_ARCMT "Build ARCMT." ON)
388 if (CLANG_ENABLE_ARCMT)
389 set(ENABLE_CLANG_ARCMT "1")
391 set(ENABLE_CLANG_ARCMT "0")
394 option(CLANG_ENABLE_STATIC_ANALYZER "Build static analyzer." ON)
395 if (CLANG_ENABLE_STATIC_ANALYZER)
396 set(ENABLE_CLANG_STATIC_ANALYZER "1")
398 set(ENABLE_CLANG_STATIC_ANALYZER "0")
401 if (NOT CLANG_ENABLE_STATIC_ANALYZER AND CLANG_ENABLE_ARCMT)
402 message(FATAL_ERROR "Cannot disable static analyzer while enabling ARCMT")
405 if(CLANG_ENABLE_ARCMT)
406 add_definitions(-DCLANG_ENABLE_ARCMT)
407 add_definitions(-DCLANG_ENABLE_OBJC_REWRITER)
409 if(CLANG_ENABLE_STATIC_ANALYZER)
410 add_definitions(-DCLANG_ENABLE_STATIC_ANALYZER)
413 # Clang version information
414 set(CLANG_EXECUTABLE_VERSION
415 "${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}" CACHE STRING
416 "Version number that will be placed into the clang executable, in the form XX.YY")
417 set(LIBCLANG_LIBRARY_VERSION
418 "${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}" CACHE STRING
419 "Version number that will be placed into the libclang library , in the form XX.YY")
420 mark_as_advanced(CLANG_EXECUTABLE_VERSION LIBCLANG_LIBRARY_VERSION)
422 add_subdirectory(utils/TableGen)
424 add_subdirectory(include)
426 # All targets below may depend on all tablegen'd files.
427 get_property(CLANG_TABLEGEN_TARGETS GLOBAL PROPERTY CLANG_TABLEGEN_TARGETS)
428 list(APPEND LLVM_COMMON_DEPENDS ${CLANG_TABLEGEN_TARGETS})
430 add_subdirectory(lib)
431 add_subdirectory(tools)
432 add_subdirectory(runtime)
434 option(CLANG_BUILD_EXAMPLES "Build CLANG example programs by default." OFF)
435 if (CLANG_BUILD_EXAMPLES)
436 set(ENABLE_CLANG_EXAMPLES "1")
438 set(ENABLE_CLANG_EXAMPLES "0")
440 add_subdirectory(examples)
442 option(CLANG_INCLUDE_TESTS
443 "Generate build targets for the Clang unit tests."
444 ${LLVM_INCLUDE_TESTS})
446 if( CLANG_INCLUDE_TESTS )
447 if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest/include/gtest/gtest.h)
448 add_subdirectory(unittests)
449 list(APPEND CLANG_TEST_DEPS ClangUnitTests)
450 list(APPEND CLANG_TEST_PARAMS
451 clang_unit_site_config=${CMAKE_CURRENT_BINARY_DIR}/test/Unit/lit.site.cfg
454 add_subdirectory(test)
456 if(CLANG_BUILT_STANDALONE)
457 # Add a global check rule now that all subdirectories have been traversed
458 # and we know the total set of lit testsuites.
459 get_property(LLVM_LIT_TESTSUITES GLOBAL PROPERTY LLVM_LIT_TESTSUITES)
460 get_property(LLVM_LIT_PARAMS GLOBAL PROPERTY LLVM_LIT_PARAMS)
461 get_property(LLVM_LIT_DEPENDS GLOBAL PROPERTY LLVM_LIT_DEPENDS)
462 get_property(LLVM_LIT_EXTRA_ARGS GLOBAL PROPERTY LLVM_LIT_EXTRA_ARGS)
463 add_lit_target(check-all
464 "Running all regression tests"
465 ${LLVM_LIT_TESTSUITES}
466 PARAMS ${LLVM_LIT_PARAMS}
467 DEPENDS ${LLVM_LIT_DEPENDS}
468 ARGS ${LLVM_LIT_EXTRA_ARGS}
473 option(CLANG_INCLUDE_DOCS "Generate build targets for the Clang docs."
474 ${LLVM_INCLUDE_DOCS})
475 if( CLANG_INCLUDE_DOCS )
476 add_subdirectory(docs)
479 set(CLANG_ORDER_FILE "" CACHE FILEPATH
480 "Order file to use when compiling clang in order to improve startup time.")