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${LLVM_LIBDIR_SUFFIX})
88 # DLL platform -- put DLLs into bin.
89 set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
91 set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
94 option(LLVM_INSTALL_TOOLCHAIN_ONLY
95 "Only include toolchain files in the 'install' target." OFF)
97 option(LLVM_FORCE_USE_OLD_HOST_TOOLCHAIN
98 "Set to ON to force using an old, unsupported host toolchain." OFF)
102 include(HandleLLVMOptions)
104 set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
106 if (NOT DEFINED LLVM_INCLUDE_TESTS)
107 set(LLVM_INCLUDE_TESTS ON)
110 include_directories("${LLVM_BINARY_DIR}/include" "${LLVM_MAIN_INCLUDE_DIR}")
111 link_directories("${LLVM_LIBRARY_DIR}")
113 set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin )
114 set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
115 set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
117 if(LLVM_INCLUDE_TESTS)
118 # Check prebuilt llvm/utils.
119 if(EXISTS ${LLVM_TOOLS_BINARY_DIR}/FileCheck${CMAKE_EXECUTABLE_SUFFIX}
120 AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/count${CMAKE_EXECUTABLE_SUFFIX}
121 AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/not${CMAKE_EXECUTABLE_SUFFIX})
122 set(LLVM_UTILS_PROVIDED ON)
125 if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
126 set(LLVM_LIT ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
127 if(NOT LLVM_UTILS_PROVIDED)
128 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/FileCheck utils/FileCheck)
129 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/count utils/count)
130 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/not utils/not)
131 set(LLVM_UTILS_PROVIDED ON)
132 set(CLANG_TEST_DEPS FileCheck count not)
134 set(UNITTEST_DIR ${LLVM_MAIN_SRC_DIR}/utils/unittest)
135 if(EXISTS ${UNITTEST_DIR}/googletest/include/gtest/gtest.h
136 AND NOT EXISTS ${LLVM_LIBRARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}gtest${CMAKE_STATIC_LIBRARY_SUFFIX}
137 AND EXISTS ${UNITTEST_DIR}/CMakeLists.txt)
138 add_subdirectory(${UNITTEST_DIR} utils/unittest)
141 # Seek installed Lit.
142 find_program(LLVM_LIT "lit.py" ${LLVM_MAIN_SRC_DIR}/utils/lit
143 DOC "Path to lit.py")
147 # Define the default arguments to use with 'lit', and an option for the user
149 set(LIT_ARGS_DEFAULT "-sv")
151 set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
153 set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")
155 # On Win32 hosts, provide an option to specify the path to the GnuWin32 tools.
156 if( WIN32 AND NOT CYGWIN )
157 set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")
160 set(LLVM_INCLUDE_TESTS OFF)
164 set( CLANG_BUILT_STANDALONE 1 )
165 set(BACKEND_PACKAGE_STRING "LLVM ${LLVM_PACKAGE_VERSION}")
167 set(BACKEND_PACKAGE_STRING "${PACKAGE_STRING}")
170 find_package(LibXml2)
172 set(CLANG_HAVE_LIBXML 1)
175 set(CLANG_RESOURCE_DIR "" CACHE STRING
176 "Relative directory from the Clang binary to its resource files.")
178 set(C_INCLUDE_DIRS "" CACHE STRING
179 "Colon separated list of directories clang will search for headers.")
181 set(GCC_INSTALL_PREFIX "" CACHE PATH "Directory where gcc is installed." )
182 set(DEFAULT_SYSROOT "" CACHE PATH
183 "Default <path> to all compiler invocations for --sysroot=<path>." )
185 set(CLANG_VENDOR "" CACHE STRING
186 "Vendor-specific text for showing with version information.")
189 add_definitions( -DCLANG_VENDOR="${CLANG_VENDOR} " )
192 set(CLANG_REPOSITORY_STRING "" CACHE STRING
193 "Vendor-specific text for showing the repository the source is taken from.")
195 if(CLANG_REPOSITORY_STRING)
196 add_definitions(-DCLANG_REPOSITORY_STRING="${CLANG_REPOSITORY_STRING}")
199 set(CLANG_VENDOR_UTI "org.llvm.clang" CACHE STRING
200 "Vendor-specific uti.")
202 # The libdir suffix must exactly match whatever LLVM's configuration used.
203 set(CLANG_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}")
205 set(CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
206 set(CLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
208 if( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE )
209 message(FATAL_ERROR "In-source builds are not allowed. CMake would overwrite "
210 "the makefiles distributed with LLVM. Please create a directory and run cmake "
211 "from there, passing the path to this source directory as the last argument. "
212 "This process created the file `CMakeCache.txt' and the directory "
213 "`CMakeFiles'. Please delete them.")
216 if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )
218 tablegenned_files_on_include_dir
219 "${CLANG_SOURCE_DIR}/include/clang/*.inc")
220 if( tablegenned_files_on_include_dir )
221 message(FATAL_ERROR "Apparently there is a previous in-source build, "
222 "probably as the result of running `configure' and `make' on "
223 "${CLANG_SOURCE_DIR}. This may cause problems. The suspicious files are:\n"
224 "${tablegenned_files_on_include_dir}\nPlease clean the source directory.")
228 # Compute the Clang version from the LLVM version.
229 string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" CLANG_VERSION
231 message(STATUS "Clang version: ${CLANG_VERSION}")
233 string(REGEX REPLACE "([0-9]+)\\.[0-9]+(\\.[0-9]+)?" "\\1" CLANG_VERSION_MAJOR
235 string(REGEX REPLACE "[0-9]+\\.([0-9]+)(\\.[0-9]+)?" "\\1" CLANG_VERSION_MINOR
237 if (${CLANG_VERSION} MATCHES "[0-9]+\\.[0-9]+\\.[0-9]+")
238 set(CLANG_HAS_VERSION_PATCHLEVEL 1)
239 string(REGEX REPLACE "[0-9]+\\.[0-9]+\\.([0-9]+)" "\\1" CLANG_VERSION_PATCHLEVEL
242 set(CLANG_HAS_VERSION_PATCHLEVEL 0)
245 # Configure the Version.inc file.
247 ${CMAKE_CURRENT_SOURCE_DIR}/include/clang/Basic/Version.inc.in
248 ${CMAKE_CURRENT_BINARY_DIR}/include/clang/Basic/Version.inc)
250 # Add appropriate flags for GCC
251 if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
252 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-common -Woverloaded-virtual -fno-strict-aliasing")
254 # Enable -pedantic for Clang even if it's not enabled for LLVM.
255 if (NOT LLVM_ENABLE_PEDANTIC)
256 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic -Wno-long-long")
259 check_cxx_compiler_flag("-Werror -Wnested-anon-types" CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG)
260 if( CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG )
261 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-nested-anon-types" )
265 # Determine HOST_LINK_VERSION on Darwin.
266 set(HOST_LINK_VERSION)
270 COMMAND sh -c "${CMAKE_LINKER} -v 2>&1 | head -1"
271 RESULT_VARIABLE HAD_ERROR
272 OUTPUT_VARIABLE LD_V_OUTPUT
275 if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*")
276 string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
277 elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]+).*")
278 string(REGEX REPLACE "[^0-9]*([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
281 message(FATAL_ERROR "${CMAKE_LINKER} failed with status ${HAD_ERROR}")
286 ${CLANG_SOURCE_DIR}/include/clang/Config/config.h.cmake
287 ${CLANG_BINARY_DIR}/include/clang/Config/config.h)
289 include(CMakeParseArguments)
291 function(clang_tablegen)
293 # clang_tablegen output-file [tablegen-arg ...] SOURCE source-file
294 # [[TARGET cmake-target-name] [DEPENDS extra-dependency ...]]
296 # Generates a custom command for invoking tblgen as
298 # tblgen source-file -o=output-file tablegen-arg ...
300 # and, if cmake-target-name is provided, creates a custom target for
301 # executing the custom command depending on output-file. It is
302 # possible to list more files to depend after DEPENDS.
304 cmake_parse_arguments(CTG "" "SOURCE;TARGET" "" ${ARGN})
307 message(FATAL_ERROR "SOURCE source-file required by clang_tablegen")
310 set( LLVM_TARGET_DEFINITIONS ${CTG_SOURCE} )
311 tablegen(CLANG ${CTG_UNPARSED_ARGUMENTS})
314 add_public_tablegen_target(${CTG_TARGET})
315 set_target_properties( ${CTG_TARGET} PROPERTIES FOLDER "Clang tablegenning")
316 set_property(GLOBAL APPEND PROPERTY CLANG_TABLEGEN_TARGETS ${CTG_TARGET})
318 endfunction(clang_tablegen)
320 macro(add_clang_library name)
321 cmake_parse_arguments(ARG
327 if(MSVC_IDE OR XCODE)
329 file(RELATIVE_PATH lib_path
330 ${CLANG_SOURCE_DIR}/lib/
331 ${CMAKE_CURRENT_SOURCE_DIR}
333 if(NOT lib_path MATCHES "^[.][.]")
334 file( GLOB_RECURSE headers
335 ${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.h
336 ${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.def
338 set_source_files_properties(${headers} PROPERTIES HEADER_FILE_ONLY ON)
340 file( GLOB_RECURSE tds
341 ${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.td
343 source_group("TableGen descriptions" FILES ${tds})
344 set_source_files_properties(${tds}} PROPERTIES HEADER_FILE_ONLY ON)
347 set(srcs ${headers} ${tds})
350 endif(MSVC_IDE OR XCODE)
351 if(srcs OR ARG_ADDITIONAL_HEADERS)
355 ${ARG_ADDITIONAL_HEADERS} # It may contain unparsed unknown args.
358 llvm_add_library(${name} ${ARG_UNPARSED_ARGUMENTS} ${srcs})
361 target_link_libraries(${name} ${cmake_2_8_12_INTERFACE} ${LLVM_COMMON_LIBS})
363 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ${name} STREQUAL "libclang")
364 install(TARGETS ${name}
365 LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
366 ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX}
367 RUNTIME DESTINATION bin)
369 set_property(GLOBAL APPEND PROPERTY CLANG_EXPORTS ${name})
371 # Add empty "phony" target
372 add_custom_target(${name})
375 set_target_properties(${name} PROPERTIES FOLDER "Clang libraries")
376 endmacro(add_clang_library)
378 macro(add_clang_executable name)
379 add_llvm_executable( ${name} ${ARGN} )
380 set_target_properties(${name} PROPERTIES FOLDER "Clang executables")
381 endmacro(add_clang_executable)
383 set(CMAKE_INCLUDE_CURRENT_DIR ON)
385 include_directories(BEFORE
386 ${CMAKE_CURRENT_BINARY_DIR}/include
387 ${CMAKE_CURRENT_SOURCE_DIR}/include
390 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
391 install(DIRECTORY include/clang include/clang-c
396 PATTERN "config.h" EXCLUDE
397 PATTERN ".svn" EXCLUDE
400 install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/clang
403 PATTERN "CMakeFiles" EXCLUDE
408 install(DIRECTORY include/clang-c
412 PATTERN ".svn" EXCLUDE
415 add_definitions( -D_GNU_SOURCE )
417 option(CLANG_ENABLE_ARCMT "Build ARCMT." ON)
418 if (CLANG_ENABLE_ARCMT)
419 set(ENABLE_CLANG_ARCMT "1")
421 set(ENABLE_CLANG_ARCMT "0")
424 option(CLANG_ENABLE_STATIC_ANALYZER "Build static analyzer." ON)
425 if (CLANG_ENABLE_STATIC_ANALYZER)
426 set(ENABLE_CLANG_STATIC_ANALYZER "1")
428 set(ENABLE_CLANG_STATIC_ANALYZER "0")
431 if (NOT CLANG_ENABLE_STATIC_ANALYZER AND CLANG_ENABLE_ARCMT)
432 message(FATAL_ERROR "Cannot disable static analyzer while enabling ARCMT")
435 if(CLANG_ENABLE_ARCMT)
436 add_definitions(-DCLANG_ENABLE_ARCMT)
437 add_definitions(-DCLANG_ENABLE_OBJC_REWRITER)
439 if(CLANG_ENABLE_STATIC_ANALYZER)
440 add_definitions(-DCLANG_ENABLE_STATIC_ANALYZER)
443 # Clang version information
444 set(CLANG_EXECUTABLE_VERSION
445 "${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}" CACHE STRING
446 "Version number that will be placed into the clang executable, in the form XX.YY")
447 set(LIBCLANG_LIBRARY_VERSION
448 "${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}" CACHE STRING
449 "Version number that will be placed into the libclang library , in the form XX.YY")
450 mark_as_advanced(CLANG_EXECUTABLE_VERSION LIBCLANG_LIBRARY_VERSION)
452 add_subdirectory(utils/TableGen)
454 add_subdirectory(include)
456 # All targets below may depend on all tablegen'd files.
457 get_property(CLANG_TABLEGEN_TARGETS GLOBAL PROPERTY CLANG_TABLEGEN_TARGETS)
458 list(APPEND LLVM_COMMON_DEPENDS ${CLANG_TABLEGEN_TARGETS})
460 add_subdirectory(lib)
461 add_subdirectory(tools)
462 add_subdirectory(runtime)
464 option(CLANG_BUILD_EXAMPLES "Build CLANG example programs by default." OFF)
465 if (CLANG_BUILD_EXAMPLES)
466 set(ENABLE_CLANG_EXAMPLES "1")
468 set(ENABLE_CLANG_EXAMPLES "0")
470 add_subdirectory(examples)
472 option(CLANG_INCLUDE_TESTS
473 "Generate build targets for the Clang unit tests."
474 ${LLVM_INCLUDE_TESTS})
476 if( CLANG_INCLUDE_TESTS )
477 if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest/include/gtest/gtest.h)
478 add_subdirectory(unittests)
479 list(APPEND CLANG_TEST_DEPS ClangUnitTests)
480 list(APPEND CLANG_TEST_PARAMS
481 clang_unit_site_config=${CMAKE_CURRENT_BINARY_DIR}/test/Unit/lit.site.cfg
484 add_subdirectory(test)
486 if(CLANG_BUILT_STANDALONE)
487 # Add a global check rule now that all subdirectories have been traversed
488 # and we know the total set of lit testsuites.
489 get_property(LLVM_LIT_TESTSUITES GLOBAL PROPERTY LLVM_LIT_TESTSUITES)
490 get_property(LLVM_LIT_PARAMS GLOBAL PROPERTY LLVM_LIT_PARAMS)
491 get_property(LLVM_LIT_DEPENDS GLOBAL PROPERTY LLVM_LIT_DEPENDS)
492 get_property(LLVM_LIT_EXTRA_ARGS GLOBAL PROPERTY LLVM_LIT_EXTRA_ARGS)
493 add_lit_target(check-all
494 "Running all regression tests"
495 ${LLVM_LIT_TESTSUITES}
496 PARAMS ${LLVM_LIT_PARAMS}
497 DEPENDS ${LLVM_LIT_DEPENDS}
498 ARGS ${LLVM_LIT_EXTRA_ARGS}
503 option(CLANG_INCLUDE_DOCS "Generate build targets for the Clang docs."
504 ${LLVM_INCLUDE_DOCS})
505 if( CLANG_INCLUDE_DOCS )
506 add_subdirectory(docs)
509 set(CLANG_ORDER_FILE "" CACHE FILEPATH
510 "Order file to use when compiling clang in order to improve startup time.")
512 if (CLANG_BUILT_STANDALONE)
513 # Generate a list of CMake library targets so that other CMake projects can
514 # link against them. LLVM calls its version of this file LLVMExports.cmake, but
515 # the usual CMake convention seems to be ${Project}Targets.cmake.
516 set(CLANG_INSTALL_PACKAGE_DIR share/clang/cmake)
517 set(clang_cmake_builddir "${CMAKE_BINARY_DIR}/${CLANG_INSTALL_PACKAGE_DIR}")
518 get_property(CLANG_EXPORTS GLOBAL PROPERTY CLANG_EXPORTS)
519 export(TARGETS ${CLANG_EXPORTS} FILE ${clang_cmake_builddir}/ClangTargets.cmake)
521 # Install a <prefix>/share/clang/cmake/ClangConfig.cmake file so that
522 # find_package(Clang) works. Install the target list with it.
524 ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules/ClangConfig.cmake
525 ${CLANG_BINARY_DIR}/share/clang/cmake/ClangTargets.cmake
526 DESTINATION share/clang/cmake)
528 # Also copy ClangConfig.cmake to the build directory so that dependent projects
529 # can build against a build directory of Clang more easily.
531 ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules/ClangConfig.cmake
532 ${CLANG_BINARY_DIR}/share/clang/cmake/ClangConfig.cmake