cmake_minimum_required(VERSION 2.8.8) # FIXME: It may be removed when we use 2.8.12. if(CMAKE_VERSION VERSION_LESS 2.8.12) # Invalidate a couple of keywords. set(cmake_2_8_12_INTERFACE) set(cmake_2_8_12_PRIVATE) else() # Use ${cmake_2_8_12_KEYWORD} intead of KEYWORD in target_link_libraries(). set(cmake_2_8_12_INTERFACE INTERFACE) set(cmake_2_8_12_PRIVATE PRIVATE) if(POLICY CMP0022) cmake_policy(SET CMP0022 NEW) # automatic when 2.8.12 is required endif() endif() # If we are not building as a part of LLVM, build Clang as an # standalone project, using LLVM as an external library: if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR ) project(Clang) # Rely on llvm-config. set(CONFIG_OUTPUT) find_program(LLVM_CONFIG "llvm-config") if(LLVM_CONFIG) message(STATUS "Found LLVM_CONFIG as ${LLVM_CONFIG}") set(CONFIG_COMMAND ${LLVM_CONFIG} "--assertion-mode" "--bindir" "--libdir" "--includedir" "--prefix" "--src-root") execute_process( COMMAND ${CONFIG_COMMAND} RESULT_VARIABLE HAD_ERROR OUTPUT_VARIABLE CONFIG_OUTPUT ) if(NOT HAD_ERROR) string(REGEX REPLACE "[ \t]*[\r\n]+[ \t]*" ";" CONFIG_OUTPUT ${CONFIG_OUTPUT}) else() string(REPLACE ";" " " CONFIG_COMMAND_STR "${CONFIG_COMMAND}") message(STATUS "${CONFIG_COMMAND_STR}") message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}") endif() else() message(FATAL_ERROR "llvm-config not found -- ${LLVM_CONFIG}") endif() list(GET CONFIG_OUTPUT 0 ENABLE_ASSERTIONS) list(GET CONFIG_OUTPUT 1 TOOLS_BINARY_DIR) list(GET CONFIG_OUTPUT 2 LIBRARY_DIR) list(GET CONFIG_OUTPUT 3 INCLUDE_DIR) list(GET CONFIG_OUTPUT 4 LLVM_OBJ_ROOT) list(GET CONFIG_OUTPUT 5 MAIN_SRC_DIR) if(NOT MSVC_IDE) set(LLVM_ENABLE_ASSERTIONS ${ENABLE_ASSERTIONS} CACHE BOOL "Enable assertions") # Assertions should follow llvm-config's. mark_as_advanced(LLVM_ENABLE_ASSERTIONS) endif() set(LLVM_TOOLS_BINARY_DIR ${TOOLS_BINARY_DIR} CACHE PATH "Path to llvm/bin") set(LLVM_LIBRARY_DIR ${LIBRARY_DIR} CACHE PATH "Path to llvm/lib") set(LLVM_MAIN_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include") set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree") set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree") find_program(LLVM_TABLEGEN_EXE "llvm-tblgen" ${LLVM_TOOLS_BINARY_DIR} NO_DEFAULT_PATH) set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/share/llvm/cmake") set(LLVMCONFIG_FILE "${LLVM_CMAKE_PATH}/LLVMConfig.cmake") if(EXISTS ${LLVMCONFIG_FILE}) list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}") include(${LLVMCONFIG_FILE}) else() message(FATAL_ERROR "Not found: ${LLVMCONFIG_FILE}") endif() # They are used as destination of target generators. set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin) set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX}) if(WIN32 OR CYGWIN) # DLL platform -- put DLLs into bin. set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_RUNTIME_OUTPUT_INTDIR}) else() set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_LIBRARY_OUTPUT_INTDIR}) endif() option(LLVM_INSTALL_TOOLCHAIN_ONLY "Only include toolchain files in the 'install' target." OFF) option(LLVM_FORCE_USE_OLD_HOST_TOOLCHAIN "Set to ON to force using an old, unsupported host toolchain." OFF) include(AddLLVM) include(TableGen) include(HandleLLVMOptions) set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}") if (NOT DEFINED LLVM_INCLUDE_TESTS) set(LLVM_INCLUDE_TESTS ON) endif() include_directories("${LLVM_BINARY_DIR}/include" "${LLVM_MAIN_INCLUDE_DIR}") link_directories("${LLVM_LIBRARY_DIR}") set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin ) set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} ) set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} ) if(LLVM_INCLUDE_TESTS) # Check prebuilt llvm/utils. if(EXISTS ${LLVM_TOOLS_BINARY_DIR}/FileCheck${CMAKE_EXECUTABLE_SUFFIX} AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/count${CMAKE_EXECUTABLE_SUFFIX} AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/not${CMAKE_EXECUTABLE_SUFFIX}) set(LLVM_UTILS_PROVIDED ON) endif() if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py) set(LLVM_LIT ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py) if(NOT LLVM_UTILS_PROVIDED) add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/FileCheck utils/FileCheck) add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/count utils/count) add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/not utils/not) set(LLVM_UTILS_PROVIDED ON) set(CLANG_TEST_DEPS FileCheck count not) endif() set(UNITTEST_DIR ${LLVM_MAIN_SRC_DIR}/utils/unittest) if(EXISTS ${UNITTEST_DIR}/googletest/include/gtest/gtest.h AND NOT EXISTS ${LLVM_LIBRARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}gtest${CMAKE_STATIC_LIBRARY_SUFFIX} AND EXISTS ${UNITTEST_DIR}/CMakeLists.txt) add_subdirectory(${UNITTEST_DIR} utils/unittest) endif() else() # Seek installed Lit. find_program(LLVM_LIT "lit.py" ${LLVM_MAIN_SRC_DIR}/utils/lit DOC "Path to lit.py") endif() if(LLVM_LIT) # Define the default arguments to use with 'lit', and an option for the user # to override. set(LIT_ARGS_DEFAULT "-sv") if (MSVC OR XCODE) set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar") endif() set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit") # On Win32 hosts, provide an option to specify the path to the GnuWin32 tools. if( WIN32 AND NOT CYGWIN ) set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools") endif() else() set(LLVM_INCLUDE_TESTS OFF) endif() endif() set( CLANG_BUILT_STANDALONE 1 ) set(BACKEND_PACKAGE_STRING "LLVM ${LLVM_PACKAGE_VERSION}") else() set(BACKEND_PACKAGE_STRING "${PACKAGE_STRING}") endif() find_package(LibXml2) if (LIBXML2_FOUND) set(CLANG_HAVE_LIBXML 1) endif() set(CLANG_RESOURCE_DIR "" CACHE STRING "Relative directory from the Clang binary to its resource files.") set(C_INCLUDE_DIRS "" CACHE STRING "Colon separated list of directories clang will search for headers.") set(GCC_INSTALL_PREFIX "" CACHE PATH "Directory where gcc is installed." ) set(DEFAULT_SYSROOT "" CACHE PATH "Default to all compiler invocations for --sysroot=." ) set(CLANG_VENDOR "" CACHE STRING "Vendor-specific text for showing with version information.") if( CLANG_VENDOR ) add_definitions( -DCLANG_VENDOR="${CLANG_VENDOR} " ) endif() set(CLANG_REPOSITORY_STRING "" CACHE STRING "Vendor-specific text for showing the repository the source is taken from.") if(CLANG_REPOSITORY_STRING) add_definitions(-DCLANG_REPOSITORY_STRING="${CLANG_REPOSITORY_STRING}") endif() set(CLANG_VENDOR_UTI "org.llvm.clang" CACHE STRING "Vendor-specific uti.") # The libdir suffix must exactly match whatever LLVM's configuration used. set(CLANG_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}") set(CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) set(CLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) if( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE ) message(FATAL_ERROR "In-source builds are not allowed. CMake would overwrite " "the makefiles distributed with LLVM. Please create a directory and run cmake " "from there, passing the path to this source directory as the last argument. " "This process created the file `CMakeCache.txt' and the directory " "`CMakeFiles'. Please delete them.") endif() if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR ) file(GLOB_RECURSE tablegenned_files_on_include_dir "${CLANG_SOURCE_DIR}/include/clang/*.inc") if( tablegenned_files_on_include_dir ) message(FATAL_ERROR "Apparently there is a previous in-source build, " "probably as the result of running `configure' and `make' on " "${CLANG_SOURCE_DIR}. This may cause problems. The suspicious files are:\n" "${tablegenned_files_on_include_dir}\nPlease clean the source directory.") endif() endif() # Compute the Clang version from the LLVM version. string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" CLANG_VERSION ${PACKAGE_VERSION}) message(STATUS "Clang version: ${CLANG_VERSION}") string(REGEX REPLACE "([0-9]+)\\.[0-9]+(\\.[0-9]+)?" "\\1" CLANG_VERSION_MAJOR ${CLANG_VERSION}) string(REGEX REPLACE "[0-9]+\\.([0-9]+)(\\.[0-9]+)?" "\\1" CLANG_VERSION_MINOR ${CLANG_VERSION}) if (${CLANG_VERSION} MATCHES "[0-9]+\\.[0-9]+\\.[0-9]+") set(CLANG_HAS_VERSION_PATCHLEVEL 1) string(REGEX REPLACE "[0-9]+\\.[0-9]+\\.([0-9]+)" "\\1" CLANG_VERSION_PATCHLEVEL ${CLANG_VERSION}) else() set(CLANG_HAS_VERSION_PATCHLEVEL 0) endif() # Configure the Version.inc file. configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/include/clang/Basic/Version.inc.in ${CMAKE_CURRENT_BINARY_DIR}/include/clang/Basic/Version.inc) # Add appropriate flags for GCC if (LLVM_COMPILER_IS_GCC_COMPATIBLE) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-common -Woverloaded-virtual -fno-strict-aliasing") # Enable -pedantic for Clang even if it's not enabled for LLVM. if (NOT LLVM_ENABLE_PEDANTIC) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic -Wno-long-long") endif () check_cxx_compiler_flag("-Werror -Wnested-anon-types" CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG) if( CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG ) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-nested-anon-types" ) endif() endif () # Determine HOST_LINK_VERSION on Darwin. set(HOST_LINK_VERSION) if (APPLE) set(LD_V_OUTPUT) execute_process( COMMAND sh -c "${CMAKE_LINKER} -v 2>&1 | head -1" RESULT_VARIABLE HAD_ERROR OUTPUT_VARIABLE LD_V_OUTPUT ) if (NOT HAD_ERROR) if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*") string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT}) elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]+).*") string(REGEX REPLACE "[^0-9]*([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT}) endif() else() message(FATAL_ERROR "${CMAKE_LINKER} failed with status ${HAD_ERROR}") endif() endif() configure_file( ${CLANG_SOURCE_DIR}/include/clang/Config/config.h.cmake ${CLANG_BINARY_DIR}/include/clang/Config/config.h) include(CMakeParseArguments) function(clang_tablegen) # Syntax: # clang_tablegen output-file [tablegen-arg ...] SOURCE source-file # [[TARGET cmake-target-name] [DEPENDS extra-dependency ...]] # # Generates a custom command for invoking tblgen as # # tblgen source-file -o=output-file tablegen-arg ... # # and, if cmake-target-name is provided, creates a custom target for # executing the custom command depending on output-file. It is # possible to list more files to depend after DEPENDS. cmake_parse_arguments(CTG "" "SOURCE;TARGET" "" ${ARGN}) if( NOT CTG_SOURCE ) message(FATAL_ERROR "SOURCE source-file required by clang_tablegen") endif() set( LLVM_TARGET_DEFINITIONS ${CTG_SOURCE} ) tablegen(CLANG ${CTG_UNPARSED_ARGUMENTS}) if(CTG_TARGET) add_public_tablegen_target(${CTG_TARGET}) set_target_properties( ${CTG_TARGET} PROPERTIES FOLDER "Clang tablegenning") set_property(GLOBAL APPEND PROPERTY CLANG_TABLEGEN_TARGETS ${CTG_TARGET}) endif() endfunction(clang_tablegen) macro(add_clang_library name) cmake_parse_arguments(ARG "" "" "ADDITIONAL_HEADERS" ${ARGN}) set(srcs) if(MSVC_IDE OR XCODE) # Add public headers file(RELATIVE_PATH lib_path ${CLANG_SOURCE_DIR}/lib/ ${CMAKE_CURRENT_SOURCE_DIR} ) if(NOT lib_path MATCHES "^[.][.]") file( GLOB_RECURSE headers ${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.h ${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.def ) set_source_files_properties(${headers} PROPERTIES HEADER_FILE_ONLY ON) file( GLOB_RECURSE tds ${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.td ) source_group("TableGen descriptions" FILES ${tds}) set_source_files_properties(${tds}} PROPERTIES HEADER_FILE_ONLY ON) if(headers OR tds) set(srcs ${headers} ${tds}) endif() endif() endif(MSVC_IDE OR XCODE) if(srcs OR ARG_ADDITIONAL_HEADERS) set(srcs ADDITIONAL_HEADERS ${srcs} ${ARG_ADDITIONAL_HEADERS} # It may contain unparsed unknown args. ) endif() llvm_add_library(${name} ${ARG_UNPARSED_ARGUMENTS} ${srcs}) if(TARGET ${name}) target_link_libraries(${name} ${cmake_2_8_12_INTERFACE} ${LLVM_COMMON_LIBS}) if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ${name} STREQUAL "libclang") install(TARGETS ${name} LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX} ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX} RUNTIME DESTINATION bin) endif() set_property(GLOBAL APPEND PROPERTY CLANG_EXPORTS ${name}) else() # Add empty "phony" target add_custom_target(${name}) endif() set_target_properties(${name} PROPERTIES FOLDER "Clang libraries") endmacro(add_clang_library) macro(add_clang_executable name) add_llvm_executable( ${name} ${ARGN} ) set_target_properties(${name} PROPERTIES FOLDER "Clang executables") endmacro(add_clang_executable) set(CMAKE_INCLUDE_CURRENT_DIR ON) include_directories(BEFORE ${CMAKE_CURRENT_BINARY_DIR}/include ${CMAKE_CURRENT_SOURCE_DIR}/include ) if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY) install(DIRECTORY include/clang include/clang-c DESTINATION include FILES_MATCHING PATTERN "*.def" PATTERN "*.h" PATTERN "config.h" EXCLUDE PATTERN ".svn" EXCLUDE ) install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/clang DESTINATION include FILES_MATCHING PATTERN "CMakeFiles" EXCLUDE PATTERN "*.inc" PATTERN "*.h" ) endif() install(DIRECTORY include/clang-c DESTINATION include FILES_MATCHING PATTERN "*.h" PATTERN ".svn" EXCLUDE ) add_definitions( -D_GNU_SOURCE ) option(CLANG_ENABLE_ARCMT "Build ARCMT." ON) if (CLANG_ENABLE_ARCMT) set(ENABLE_CLANG_ARCMT "1") else() set(ENABLE_CLANG_ARCMT "0") endif() option(CLANG_ENABLE_STATIC_ANALYZER "Build static analyzer." ON) if (CLANG_ENABLE_STATIC_ANALYZER) set(ENABLE_CLANG_STATIC_ANALYZER "1") else() set(ENABLE_CLANG_STATIC_ANALYZER "0") endif() if (NOT CLANG_ENABLE_STATIC_ANALYZER AND CLANG_ENABLE_ARCMT) message(FATAL_ERROR "Cannot disable static analyzer while enabling ARCMT") endif() if(CLANG_ENABLE_ARCMT) add_definitions(-DCLANG_ENABLE_ARCMT) add_definitions(-DCLANG_ENABLE_OBJC_REWRITER) endif() if(CLANG_ENABLE_STATIC_ANALYZER) add_definitions(-DCLANG_ENABLE_STATIC_ANALYZER) endif() # Clang version information set(CLANG_EXECUTABLE_VERSION "${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}" CACHE STRING "Version number that will be placed into the clang executable, in the form XX.YY") set(LIBCLANG_LIBRARY_VERSION "${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}" CACHE STRING "Version number that will be placed into the libclang library , in the form XX.YY") mark_as_advanced(CLANG_EXECUTABLE_VERSION LIBCLANG_LIBRARY_VERSION) add_subdirectory(utils/TableGen) add_subdirectory(include) # All targets below may depend on all tablegen'd files. get_property(CLANG_TABLEGEN_TARGETS GLOBAL PROPERTY CLANG_TABLEGEN_TARGETS) list(APPEND LLVM_COMMON_DEPENDS ${CLANG_TABLEGEN_TARGETS}) add_subdirectory(lib) add_subdirectory(tools) add_subdirectory(runtime) option(CLANG_BUILD_EXAMPLES "Build CLANG example programs by default." OFF) if (CLANG_BUILD_EXAMPLES) set(ENABLE_CLANG_EXAMPLES "1") else() set(ENABLE_CLANG_EXAMPLES "0") endif() add_subdirectory(examples) option(CLANG_INCLUDE_TESTS "Generate build targets for the Clang unit tests." ${LLVM_INCLUDE_TESTS}) if( CLANG_INCLUDE_TESTS ) if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest/include/gtest/gtest.h) add_subdirectory(unittests) list(APPEND CLANG_TEST_DEPS ClangUnitTests) list(APPEND CLANG_TEST_PARAMS clang_unit_site_config=${CMAKE_CURRENT_BINARY_DIR}/test/Unit/lit.site.cfg ) endif() add_subdirectory(test) if(CLANG_BUILT_STANDALONE) # Add a global check rule now that all subdirectories have been traversed # and we know the total set of lit testsuites. get_property(LLVM_LIT_TESTSUITES GLOBAL PROPERTY LLVM_LIT_TESTSUITES) get_property(LLVM_LIT_PARAMS GLOBAL PROPERTY LLVM_LIT_PARAMS) get_property(LLVM_LIT_DEPENDS GLOBAL PROPERTY LLVM_LIT_DEPENDS) get_property(LLVM_LIT_EXTRA_ARGS GLOBAL PROPERTY LLVM_LIT_EXTRA_ARGS) add_lit_target(check-all "Running all regression tests" ${LLVM_LIT_TESTSUITES} PARAMS ${LLVM_LIT_PARAMS} DEPENDS ${LLVM_LIT_DEPENDS} ARGS ${LLVM_LIT_EXTRA_ARGS} ) endif() endif() option(CLANG_INCLUDE_DOCS "Generate build targets for the Clang docs." ${LLVM_INCLUDE_DOCS}) if( CLANG_INCLUDE_DOCS ) add_subdirectory(docs) endif() set(CLANG_ORDER_FILE "" CACHE FILEPATH "Order file to use when compiling clang in order to improve startup time.") if (CLANG_BUILT_STANDALONE) # Generate a list of CMake library targets so that other CMake projects can # link against them. LLVM calls its version of this file LLVMExports.cmake, but # the usual CMake convention seems to be ${Project}Targets.cmake. set(CLANG_INSTALL_PACKAGE_DIR share/clang/cmake) set(clang_cmake_builddir "${CMAKE_BINARY_DIR}/${CLANG_INSTALL_PACKAGE_DIR}") get_property(CLANG_EXPORTS GLOBAL PROPERTY CLANG_EXPORTS) export(TARGETS ${CLANG_EXPORTS} FILE ${clang_cmake_builddir}/ClangTargets.cmake) # Install a /share/clang/cmake/ClangConfig.cmake file so that # find_package(Clang) works. Install the target list with it. install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules/ClangConfig.cmake ${CLANG_BINARY_DIR}/share/clang/cmake/ClangTargets.cmake DESTINATION share/clang/cmake) # Also copy ClangConfig.cmake to the build directory so that dependent projects # can build against a build directory of Clang more easily. configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules/ClangConfig.cmake ${CLANG_BINARY_DIR}/share/clang/cmake/ClangConfig.cmake COPYONLY) endif ()