| include(ExternalProject) |
| |
| # llvm_ExternalProject_BuildCmd(out_var target) |
| # Utility function for constructing command lines for external project targets |
| function(llvm_ExternalProject_BuildCmd out_var target bin_dir) |
| cmake_parse_arguments(ARG "" "CONFIGURATION" "" ${ARGN}) |
| if(NOT ARG_CONFIGURATION) |
| set(ARG_CONFIGURATION "$<CONFIGURATION>") |
| endif() |
| if (CMAKE_GENERATOR MATCHES "Make") |
| # Use special command for Makefiles to support parallelism. |
| set(${out_var} "$(MAKE)" "-C" "${bin_dir}" "${target}" PARENT_SCOPE) |
| else() |
| set(${out_var} ${CMAKE_COMMAND} --build ${bin_dir} --target ${target} |
| --config ${ARG_CONFIGURATION} PARENT_SCOPE) |
| endif() |
| endfunction() |
| |
| # llvm_ExternalProject_Add(name source_dir ... |
| # USE_TOOLCHAIN |
| # Use just-built tools (see TOOLCHAIN_TOOLS) |
| # EXCLUDE_FROM_ALL |
| # Exclude this project from the all target |
| # NO_INSTALL |
| # Don't generate install targets for this project |
| # ALWAYS_CLEAN |
| # Always clean the sub-project before building |
| # CMAKE_ARGS arguments... |
| # Optional cmake arguments to pass when configuring the project |
| # TOOLCHAIN_TOOLS targets... |
| # Targets for toolchain tools (defaults to clang;lld) |
| # DEPENDS targets... |
| # Targets that this project depends on |
| # EXTRA_TARGETS targets... |
| # Extra targets in the subproject to generate targets for |
| # PASSTHROUGH_PREFIXES prefix... |
| # Extra variable prefixes (name is always included) to pass down |
| # ) |
| function(llvm_ExternalProject_Add name source_dir) |
| cmake_parse_arguments(ARG |
| "USE_TOOLCHAIN;EXCLUDE_FROM_ALL;NO_INSTALL;ALWAYS_CLEAN" |
| "SOURCE_DIR" |
| "CMAKE_ARGS;TOOLCHAIN_TOOLS;RUNTIME_LIBRARIES;DEPENDS;EXTRA_TARGETS;PASSTHROUGH_PREFIXES" |
| ${ARGN}) |
| canonicalize_tool_name(${name} nameCanon) |
| if(NOT ARG_TOOLCHAIN_TOOLS) |
| set(ARG_TOOLCHAIN_TOOLS clang lld) |
| if(NOT APPLE AND NOT WIN32) |
| list(APPEND ARG_TOOLCHAIN_TOOLS llvm-ar llvm-ranlib) |
| endif() |
| endif() |
| foreach(tool ${ARG_TOOLCHAIN_TOOLS}) |
| if(TARGET ${tool}) |
| list(APPEND TOOLCHAIN_TOOLS ${tool}) |
| list(APPEND TOOLCHAIN_BINS $<TARGET_FILE:${tool}>) |
| endif() |
| endforeach() |
| |
| if(NOT ARG_RUNTIME_LIBRARIES) |
| set(ARG_RUNTIME_LIBRARIES compiler-rt libcxx) |
| endif() |
| foreach(lib ${ARG_RUNTIME_LIBRARIES}) |
| if(TARGET ${lib}) |
| list(APPEND RUNTIME_LIBRARIES ${lib}) |
| endif() |
| endforeach() |
| |
| if(ARG_ALWAYS_CLEAN) |
| set(always_clean clean) |
| endif() |
| |
| list(FIND TOOLCHAIN_TOOLS clang FOUND_CLANG) |
| if(FOUND_CLANG GREATER -1) |
| set(CLANG_IN_TOOLCHAIN On) |
| endif() |
| |
| if(RUNTIME_LIBRARIES AND CLANG_IN_TOOLCHAIN) |
| list(APPEND TOOLCHAIN_BINS ${RUNTIME_LIBRARIES}) |
| endif() |
| |
| set(STAMP_DIR ${CMAKE_CURRENT_BINARY_DIR}/${name}-stamps/) |
| set(BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/${name}-bins/) |
| |
| add_custom_target(${name}-clear |
| COMMAND ${CMAKE_COMMAND} -E remove_directory ${BINARY_DIR} |
| COMMAND ${CMAKE_COMMAND} -E remove_directory ${STAMP_DIR} |
| COMMENT "Clobbering ${name} build and stamp directories" |
| USES_TERMINAL |
| ) |
| |
| # Find all variables that start with a prefix and propagate them through |
| get_cmake_property(variableNames VARIABLES) |
| |
| list(APPEND ARG_PASSTHROUGH_PREFIXES ${nameCanon}) |
| foreach(prefix ${ARG_PASSTHROUGH_PREFIXES}) |
| foreach(variableName ${variableNames}) |
| if(variableName MATCHES "^${prefix}") |
| string(REPLACE ";" "\;" value "${${variableName}}") |
| list(APPEND PASSTHROUGH_VARIABLES |
| -D${variableName}=${value}) |
| endif() |
| endforeach() |
| endforeach() |
| |
| if(ARG_USE_TOOLCHAIN) |
| if(CLANG_IN_TOOLCHAIN) |
| set(compiler_args -DCMAKE_C_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang |
| -DCMAKE_CXX_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang++) |
| endif() |
| if(llvm-ar IN_LIST TOOLCHAIN_TOOLS) |
| list(APPEND compiler_args -DCMAKE_AR=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ar) |
| endif() |
| if(llvm-ranlib IN_LIST TOOLCHAIN_TOOLS) |
| list(APPEND compiler_args -DCMAKE_RANLIB=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ranlib) |
| endif() |
| list(APPEND ARG_DEPENDS ${TOOLCHAIN_TOOLS}) |
| endif() |
| |
| add_custom_command( |
| OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp |
| DEPENDS ${ARG_DEPENDS} |
| COMMAND ${CMAKE_COMMAND} -E touch ${BINARY_DIR}/CMakeCache.txt |
| COMMAND ${CMAKE_COMMAND} -E touch ${STAMP_DIR}/${name}-mkdir |
| COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp |
| COMMENT "Clobbering bootstrap build and stamp directories" |
| ) |
| |
| add_custom_target(${name}-clobber |
| DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp) |
| |
| if(ARG_EXCLUDE_FROM_ALL) |
| set(exclude EXCLUDE_FROM_ALL 1) |
| endif() |
| |
| ExternalProject_Add(${name} |
| DEPENDS ${ARG_DEPENDS} llvm-config |
| ${name}-clobber |
| PREFIX ${CMAKE_BINARY_DIR}/projects/${name} |
| SOURCE_DIR ${source_dir} |
| STAMP_DIR ${STAMP_DIR} |
| BINARY_DIR ${BINARY_DIR} |
| ${exclude} |
| CMAKE_ARGS ${${nameCanon}_CMAKE_ARGS} |
| ${compiler_args} |
| -DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX} |
| -DLLVM_BINARY_DIR=${PROJECT_BINARY_DIR} |
| -DLLVM_CONFIG_PATH=$<TARGET_FILE:llvm-config> |
| -DLLVM_ENABLE_WERROR=${LLVM_ENABLE_WERROR} |
| -DPACKAGE_VERSION=${PACKAGE_VERSION} |
| -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} |
| -DCMAKE_MAKE_PROGRAM=${CMAKE_MAKE_PROGRAM} |
| ${ARG_CMAKE_ARGS} |
| ${PASSTHROUGH_VARIABLES} |
| INSTALL_COMMAND "" |
| STEP_TARGETS configure build |
| BUILD_ALWAYS 1 |
| USES_TERMINAL_CONFIGURE 1 |
| USES_TERMINAL_BUILD 1 |
| USES_TERMINAL_INSTALL 1 |
| ) |
| |
| if(ARG_USE_TOOLCHAIN) |
| set(force_deps DEPENDS ${TOOLCHAIN_BINS}) |
| endif() |
| |
| llvm_ExternalProject_BuildCmd(run_clean clean ${BINARY_DIR}) |
| ExternalProject_Add_Step(${name} clean |
| COMMAND ${run_clean} |
| COMMENT "Cleaning ${name}..." |
| DEPENDEES configure |
| ${force_deps} |
| WORKING_DIRECTORY ${BINARY_DIR} |
| EXCLUDE_FROM_MAIN 1 |
| USES_TERMINAL 1 |
| ) |
| ExternalProject_Add_StepTargets(${name} clean) |
| |
| if(ARG_USE_TOOLCHAIN) |
| add_dependencies(${name}-clean ${name}-clobber) |
| set_target_properties(${name}-clean PROPERTIES |
| SOURCES ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp) |
| endif() |
| |
| if(NOT ARG_NO_INSTALL) |
| install(CODE "execute_process\(COMMAND \${CMAKE_COMMAND} -DCMAKE_INSTALL_PREFIX=\${CMAKE_INSTALL_PREFIX} -P ${BINARY_DIR}/cmake_install.cmake \)" |
| COMPONENT ${name}) |
| |
| add_custom_target(install-${name} |
| DEPENDS ${name} |
| COMMAND "${CMAKE_COMMAND}" |
| -DCMAKE_INSTALL_COMPONENT=${name} |
| -P "${CMAKE_BINARY_DIR}/cmake_install.cmake" |
| USES_TERMINAL) |
| endif() |
| |
| # Add top-level targets |
| foreach(target ${ARG_EXTRA_TARGETS}) |
| llvm_ExternalProject_BuildCmd(build_runtime_cmd ${target} ${BINARY_DIR}) |
| add_custom_target(${target} |
| COMMAND ${build_runtime_cmd} |
| DEPENDS ${name}-configure |
| WORKING_DIRECTORY ${BINARY_DIR} |
| VERBATIM |
| USES_TERMINAL) |
| endforeach() |
| endfunction() |
