forked from OSchip/llvm-project
232 lines
8.0 KiB
CMake
232 lines
8.0 KiB
CMake
# If we are not building as a part of LLVM, build lld as a standalone project,
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# using LLVM as an external library.
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cmake_minimum_required(VERSION 2.8)
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# FIXME: It may be removed when we use 2.8.12.
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if(CMAKE_VERSION VERSION_LESS 2.8.12)
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# Invalidate a couple of keywords.
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set(cmake_2_8_12_INTERFACE)
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set(cmake_2_8_12_PRIVATE)
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else()
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# Use ${cmake_2_8_12_KEYWORD} intead of KEYWORD in target_link_libraries().
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set(cmake_2_8_12_INTERFACE INTERFACE)
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set(cmake_2_8_12_PRIVATE PRIVATE)
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if(POLICY CMP0022)
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cmake_policy(SET CMP0022 NEW) # automatic when 2.8.12 is required
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endif()
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endif()
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if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
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project(lld)
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set(LLD_PATH_TO_LLVM_SOURCE "" CACHE PATH
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"Path to LLVM source code. Not necessary if using an installed LLVM.")
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set(LLD_PATH_TO_LLVM_BUILD "" CACHE PATH
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"Path to the directory where LLVM was built or installed.")
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if (LLD_PATH_TO_LLVM_SOURCE)
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if (NOT EXISTS "${LLD_PATH_TO_LLVM_SOURCE}/cmake/config-ix.cmake")
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message(FATAL_ERROR "Please set LLD_PATH_TO_LLVM_SOURCE to the root "
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"directory of LLVM source code.")
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else()
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get_filename_component(LLVM_MAIN_SRC_DIR ${LLD_PATH_TO_LLVM_SOURCE}
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ABSOLUTE)
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list(APPEND CMAKE_MODULE_PATH "${LLVM_MAIN_SRC_DIR}/cmake/modules")
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endif()
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endif()
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list(APPEND CMAKE_MODULE_PATH "${LLD_PATH_TO_LLVM_BUILD}/share/llvm/cmake")
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get_filename_component(PATH_TO_LLVM_BUILD ${LLD_PATH_TO_LLVM_BUILD}
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ABSOLUTE)
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option(LLVM_INSTALL_TOOLCHAIN_ONLY
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"Only include toolchain files in the 'install' target." OFF)
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include(AddLLVM)
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include(TableGen)
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include("${LLD_PATH_TO_LLVM_BUILD}/share/llvm/cmake/LLVMConfig.cmake")
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include(HandleLLVMOptions)
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set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
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set(LLVM_MAIN_INCLUDE_DIR "${LLVM_MAIN_SRC_DIR}/include")
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set(LLVM_BINARY_DIR ${CMAKE_BINARY_DIR})
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set(CMAKE_INCLUDE_CURRENT_DIR ON)
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include_directories("${PATH_TO_LLVM_BUILD}/include"
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"${LLVM_MAIN_INCLUDE_DIR}")
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link_directories("${PATH_TO_LLVM_BUILD}/lib${LLVM_LIBDIR_SUFFIX}")
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if (EXISTS "${LLD_PATH_TO_LLVM_BUILD}/bin/llvm-config${CMAKE_EXECUTABLE_SUFFIX}")
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set (PATH_TO_LLVM_CONFIG "${LLD_PATH_TO_LLVM_BUILD}/bin/llvm-config${CMAKE_EXECUTABLE_SUFFIX}")
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elseif (EXISTS "${LLD_PATH_TO_LLVM_BUILD}/bin/Debug/llvm-config${CMAKE_EXECUTABLE_SUFFIX}")
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# FIXME: This is an utter hack.
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set (PATH_TO_LLVM_CONFIG "${LLD_PATH_TO_LLVM_BUILD}/bin/Debug/llvm-config${CMAKE_EXECUTABLE_SUFFIX}")
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else()
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message(FATAL_ERROR "Please set LLD_PATH_TO_LLVM_BUILD to a directory containing a LLVM build.")
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endif()
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exec_program("${PATH_TO_LLVM_CONFIG} --bindir" OUTPUT_VARIABLE LLVM_BINARY_DIR)
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set(LLVM_TABLEGEN_EXE "${LLVM_BINARY_DIR}/llvm-tblgen${CMAKE_EXECUTABLE_SUFFIX}")
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
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set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX})
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set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX})
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set(LLD_BUILT_STANDALONE 1)
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endif()
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set(LLD_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
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set(LLD_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
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# Compute the LLD version from the LLVM version.
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string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" LLD_VERSION
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${PACKAGE_VERSION})
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message(STATUS "LLD version: ${LLD_VERSION}")
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string(REGEX REPLACE "([0-9]+)\\.[0-9]+(\\.[0-9]+)?" "\\1" LLD_VERSION_MAJOR
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${LLD_VERSION})
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string(REGEX REPLACE "[0-9]+\\.([0-9]+)(\\.[0-9]+)?" "\\1" LLD_VERSION_MINOR
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${LLD_VERSION})
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# Determine LLD revision and repository.
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# TODO: Figure out a way to get the revision and the repository on windows.
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if ( NOT CMAKE_SYSTEM_NAME MATCHES "Windows" )
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execute_process(COMMAND ${CMAKE_SOURCE_DIR}/utils/GetSourceVersion ${LLD_SOURCE_DIR}
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OUTPUT_VARIABLE LLD_REVISION)
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execute_process(COMMAND ${CMAKE_SOURCE_DIR}/utils/GetRepositoryPath ${LLD_SOURCE_DIR}
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OUTPUT_VARIABLE LLD_REPOSITORY)
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if ( LLD_REPOSITORY )
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# Replace newline characters with spaces
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string(REGEX REPLACE "(\r?\n)+" " " LLD_REPOSITORY ${LLD_REPOSITORY})
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# Remove leading spaces
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STRING(REGEX REPLACE "^[ \t\r\n]+" "" LLD_REPOSITORY "${LLD_REPOSITORY}" )
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# Remove trailing spaces
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string(REGEX REPLACE "(\ )+$" "" LLD_REPOSITORY ${LLD_REPOSITORY})
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endif()
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if ( LLD_REVISION )
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# Replace newline characters with spaces
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string(REGEX REPLACE "(\r?\n)+" " " LLD_REVISION ${LLD_REVISION})
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# Remove leading spaces
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STRING(REGEX REPLACE "^[ \t\r\n]+" "" LLD_REVISION "${LLD_REVISION}" )
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# Remove trailing spaces
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string(REGEX REPLACE "(\ )+$" "" LLD_REVISION ${LLD_REVISION})
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endif()
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endif ()
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# Configure the Version.inc file.
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configure_file(
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${CMAKE_CURRENT_SOURCE_DIR}/include/lld/Config/Version.inc.in
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${CMAKE_CURRENT_BINARY_DIR}/include/lld/Config/Version.inc)
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if (CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)
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message(FATAL_ERROR "In-source builds are not allowed. CMake would overwrite "
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"the makefiles distributed with LLVM. Please create a directory and run cmake "
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"from there, passing the path to this source directory as the last argument. "
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"This process created the file `CMakeCache.txt' and the directory "
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"`CMakeFiles'. Please delete them.")
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endif()
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list (APPEND CMAKE_MODULE_PATH "${LLD_SOURCE_DIR}/cmake/modules")
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option(LLD_USE_VTUNE
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"Enable VTune user task tracking."
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OFF)
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if (LLD_USE_VTUNE)
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find_package(VTune)
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if (VTUNE_FOUND)
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include_directories(${VTune_INCLUDE_DIRS})
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list(APPEND LLVM_COMMON_LIBS ${VTune_LIBRARIES})
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add_definitions(-DLLD_HAS_VTUNE)
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endif()
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endif()
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# lld requires c++11 to build. Make sure that we have a compiler and standard
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# library combination that can do that.
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if (NOT MSVC)
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# gcc and clang require the -std=c++0x or -std=c++11 flag.
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if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU|Clang" AND
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NOT ("${CMAKE_CXX_FLAGS}" MATCHES ".*-std=(c|gnu)\\+\\+(0x|11|1y).*"))
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message(FATAL_ERROR
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"lld requires c++11. Clang and gcc require -std=c++0x or -std=c++11 to "
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"enter this mode. Please set CMAKE_CXX_FLAGS accordingly.")
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endif()
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elseif (MSVC_VERSION LESS 1700)
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message(FATAL_ERROR "The selected compiler does not support c++11 which is "
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"required to build lld.")
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endif()
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if (MSVC)
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add_definitions(-wd4530) # Suppress 'warning C4530: C++ exception handler used, but unwind semantics are not enabled.'
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endif()
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macro(add_lld_library name)
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llvm_process_sources(srcs ${ARGN})
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if (MSVC_IDE OR XCODE)
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string(REGEX MATCHALL "/[^/]+" split_path ${CMAKE_CURRENT_SOURCE_DIR})
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list(GET split_path -1 dir)
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file(GLOB_RECURSE headers
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../../include/lld${dir}/*.h)
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set(srcs ${srcs} ${headers})
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endif()
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if (MODULE)
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set(libkind MODULE)
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elseif (SHARED_LIBRARY)
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set(libkind SHARED)
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else()
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set(libkind)
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endif()
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add_library(${name} ${libkind} ${srcs})
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llvm_update_compile_flags(${name} ${srcs})
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if (LLVM_COMMON_DEPENDS)
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add_dependencies(${name} ${LLVM_COMMON_DEPENDS})
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endif()
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target_link_libraries(${name} ${LLVM_USED_LIBS})
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llvm_config(${name} ${LLVM_LINK_COMPONENTS})
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target_link_libraries(${name} ${LLVM_COMMON_LIBS})
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if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
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install(TARGETS ${name}
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LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
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ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX})
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endif()
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set_target_properties(${name} PROPERTIES FOLDER "lld libraries")
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endmacro(add_lld_library)
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macro(add_lld_executable name)
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add_llvm_executable(${name} ${ARGN})
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set_target_properties(${name} PROPERTIES FOLDER "lld executables")
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endmacro(add_lld_executable)
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include_directories(BEFORE
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${CMAKE_CURRENT_BINARY_DIR}/include
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${CMAKE_CURRENT_SOURCE_DIR}/include
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)
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if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
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install(DIRECTORY include/
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DESTINATION include
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FILES_MATCHING
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PATTERN "*.h"
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PATTERN ".svn" EXCLUDE
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)
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endif()
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add_subdirectory(lib)
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add_subdirectory(tools)
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add_subdirectory(utils)
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add_subdirectory(test)
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if (LLVM_INCLUDE_TESTS AND NOT LLD_BUILT_STANDALONE)
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add_subdirectory(unittests)
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endif()
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add_subdirectory(docs)
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