1 # Check if lld is built as a standalone project.
2 if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
4 cmake_minimum_required(VERSION 3.4.3)
6 set(CMAKE_INCLUDE_CURRENT_DIR ON)
7 set(LLD_BUILT_STANDALONE TRUE)
9 find_program(LLVM_CONFIG_PATH "llvm-config" DOC "Path to llvm-config binary")
10 if(NOT LLVM_CONFIG_PATH)
11 message(FATAL_ERROR "llvm-config not found: specify LLVM_CONFIG_PATH")
14 execute_process(COMMAND "${LLVM_CONFIG_PATH}" "--obj-root" "--includedir"
16 RESULT_VARIABLE HAD_ERROR
17 OUTPUT_VARIABLE LLVM_CONFIG_OUTPUT
18 OUTPUT_STRIP_TRAILING_WHITESPACE)
20 message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
23 string(REGEX REPLACE "[ \t]*[\r\n]+[ \t]*" ";" LLVM_CONFIG_OUTPUT "${LLVM_CONFIG_OUTPUT}")
25 list(GET LLVM_CONFIG_OUTPUT 0 OBJ_ROOT)
26 list(GET LLVM_CONFIG_OUTPUT 1 MAIN_INCLUDE_DIR)
27 list(GET LLVM_CONFIG_OUTPUT 2 LLVM_CMAKE_PATH)
29 set(LLVM_OBJ_ROOT ${OBJ_ROOT} CACHE PATH "path to LLVM build tree")
30 set(LLVM_MAIN_INCLUDE_DIR ${MAIN_INCLUDE_DIR} CACHE PATH "path to llvm/include")
32 file(TO_CMAKE_PATH ${LLVM_OBJ_ROOT} LLVM_BINARY_DIR)
34 if(NOT EXISTS "${LLVM_CMAKE_PATH}/LLVMConfig.cmake")
35 message(FATAL_ERROR "LLVMConfig.cmake not found")
37 include("${LLVM_CMAKE_PATH}/LLVMConfig.cmake")
39 list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
41 set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
42 include_directories("${LLVM_BINARY_DIR}/include" ${LLVM_INCLUDE_DIRS})
43 link_directories(${LLVM_LIBRARY_DIRS})
45 set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX})
46 set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin)
47 find_program(LLVM_TABLEGEN_EXE "llvm-tblgen" ${LLVM_TOOLS_BINARY_DIR} NO_DEFAULT_PATH)
51 include(HandleLLVMOptions)
54 set(LLD_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
55 set(LLD_INCLUDE_DIR ${LLD_SOURCE_DIR}/include )
56 set(LLD_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
58 # Compute the LLD version from the LLVM version.
59 string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" LLD_VERSION
61 message(STATUS "LLD version: ${LLD_VERSION}")
63 string(REGEX REPLACE "([0-9]+)\\.[0-9]+(\\.[0-9]+)?" "\\1" LLD_VERSION_MAJOR
65 string(REGEX REPLACE "[0-9]+\\.([0-9]+)(\\.[0-9]+)?" "\\1" LLD_VERSION_MINOR
68 # Determine LLD revision and repository.
69 # TODO: Figure out a way to get the revision and the repository on windows.
70 if ( NOT CMAKE_SYSTEM_NAME MATCHES "Windows" )
71 execute_process(COMMAND ${CMAKE_SOURCE_DIR}/utils/GetSourceVersion ${LLD_SOURCE_DIR}
72 OUTPUT_VARIABLE LLD_REVISION)
74 execute_process(COMMAND ${CMAKE_SOURCE_DIR}/utils/GetRepositoryPath ${LLD_SOURCE_DIR}
75 OUTPUT_VARIABLE LLD_REPOSITORY)
77 # Replace newline characters with spaces
78 string(REGEX REPLACE "(\r?\n)+" " " LLD_REPOSITORY ${LLD_REPOSITORY})
79 # Remove leading spaces
80 STRING(REGEX REPLACE "^[ \t\r\n]+" "" LLD_REPOSITORY "${LLD_REPOSITORY}" )
81 # Remove trailing spaces
82 string(REGEX REPLACE "(\ )+$" "" LLD_REPOSITORY ${LLD_REPOSITORY})
86 # Replace newline characters with spaces
87 string(REGEX REPLACE "(\r?\n)+" " " LLD_REVISION ${LLD_REVISION})
88 # Remove leading spaces
89 STRING(REGEX REPLACE "^[ \t\r\n]+" "" LLD_REVISION "${LLD_REVISION}" )
90 # Remove trailing spaces
91 string(REGEX REPLACE "(\ )+$" "" LLD_REVISION ${LLD_REVISION})
95 # Configure the Version.inc file.
97 ${CMAKE_CURRENT_SOURCE_DIR}/include/lld/Config/Version.inc.in
98 ${CMAKE_CURRENT_BINARY_DIR}/include/lld/Config/Version.inc)
101 if (CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)
102 message(FATAL_ERROR "In-source builds are not allowed. CMake would overwrite "
103 "the makefiles distributed with LLVM. Please create a directory and run cmake "
104 "from there, passing the path to this source directory as the last argument. "
105 "This process created the file `CMakeCache.txt' and the directory "
106 "`CMakeFiles'. Please delete them.")
109 list (APPEND CMAKE_MODULE_PATH "${LLD_SOURCE_DIR}/cmake/modules")
114 "Enable VTune user task tracking."
119 include_directories(${VTune_INCLUDE_DIRS})
120 list(APPEND LLVM_COMMON_LIBS ${VTune_LIBRARIES})
121 add_definitions(-DLLD_HAS_VTUNE)
125 option(LLD_BUILD_TOOLS
126 "Build the lld tools. If OFF, just generate build targets." ON)
129 add_definitions(-wd4530) # Suppress 'warning C4530: C++ exception handler used, but unwind semantics are not enabled.'
130 add_definitions(-wd4062) # Suppress 'warning C4062: enumerator X in switch of enum Y is not handled' from system header.
133 include_directories(BEFORE
134 ${CMAKE_CURRENT_BINARY_DIR}/include
135 ${CMAKE_CURRENT_SOURCE_DIR}/include
138 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
139 install(DIRECTORY include/
143 PATTERN ".svn" EXCLUDE
147 add_subdirectory(lib)
148 add_subdirectory(tools/lld)
150 if (LLVM_INCLUDE_TESTS)
151 add_subdirectory(test)
152 add_subdirectory(unittests)
155 add_subdirectory(docs)
156 add_subdirectory(COFF)
157 add_subdirectory(ELF)