ab9991ff4b
This changes adds support for building runtimes for multiple different targets using LLVM runtimes directory. The implementation follow the model used already by the builtins build which already supports this option. To specify the runtimes targets to be built, use the LLVM_RUNTIME_TARGETS variable, where the valuae is the list of targets to build runtimes for. To pass a per target variable to the runtimes build, you can set RUNTIMES_<target>_<variable> where <variable> will be passed to the runtimes build for <target>. Each runtime target (except for the default one) will be installed into lib/<target> subdirectory. Build targets will be suffixed with the target name. Differential Revision: https://reviews.llvm.org/D32816 llvm-svn: 307731
215 lines
7.2 KiB
CMake
215 lines
7.2 KiB
CMake
include(ExternalProject)
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# llvm_ExternalProject_BuildCmd(out_var target)
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# Utility function for constructing command lines for external project targets
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function(llvm_ExternalProject_BuildCmd out_var target bin_dir)
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cmake_parse_arguments(ARG "" "CONFIGURATION" "" ${ARGN})
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if(NOT ARG_CONFIGURATION)
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set(ARG_CONFIGURATION "$<CONFIGURATION>")
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endif()
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if (CMAKE_GENERATOR MATCHES "Make")
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# Use special command for Makefiles to support parallelism.
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set(${out_var} "$(MAKE)" "-C" "${bin_dir}" "${target}" PARENT_SCOPE)
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else()
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set(${out_var} ${CMAKE_COMMAND} --build ${bin_dir} --target ${target}
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--config ${ARG_CONFIGURATION} PARENT_SCOPE)
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endif()
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endfunction()
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# llvm_ExternalProject_Add(name source_dir ...
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# USE_TOOLCHAIN
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# Use just-built tools (see TOOLCHAIN_TOOLS)
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# EXCLUDE_FROM_ALL
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# Exclude this project from the all target
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# NO_INSTALL
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# Don't generate install targets for this project
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# ALWAYS_CLEAN
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# Always clean the sub-project before building
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# CMAKE_ARGS arguments...
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# Optional cmake arguments to pass when configuring the project
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# TOOLCHAIN_TOOLS targets...
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# Targets for toolchain tools (defaults to clang;lld)
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# DEPENDS targets...
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# Targets that this project depends on
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# EXTRA_TARGETS targets...
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# Extra targets in the subproject to generate targets for
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# PASSTHROUGH_PREFIXES prefix...
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# Extra variable prefixes (name is always included) to pass down
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# )
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function(llvm_ExternalProject_Add name source_dir)
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cmake_parse_arguments(ARG
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"USE_TOOLCHAIN;EXCLUDE_FROM_ALL;NO_INSTALL;ALWAYS_CLEAN"
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"SOURCE_DIR"
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"CMAKE_ARGS;TOOLCHAIN_TOOLS;RUNTIME_LIBRARIES;DEPENDS;EXTRA_TARGETS;PASSTHROUGH_PREFIXES"
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${ARGN})
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canonicalize_tool_name(${name} nameCanon)
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if(NOT ARG_TOOLCHAIN_TOOLS)
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set(ARG_TOOLCHAIN_TOOLS clang lld)
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if(NOT APPLE AND NOT WIN32)
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list(APPEND ARG_TOOLCHAIN_TOOLS llvm-ar llvm-ranlib)
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endif()
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endif()
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foreach(tool ${ARG_TOOLCHAIN_TOOLS})
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if(TARGET ${tool})
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list(APPEND TOOLCHAIN_TOOLS ${tool})
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list(APPEND TOOLCHAIN_BINS $<TARGET_FILE:${tool}>)
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endif()
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endforeach()
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if(NOT ARG_RUNTIME_LIBRARIES)
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set(ARG_RUNTIME_LIBRARIES compiler-rt libcxx)
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endif()
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foreach(lib ${ARG_RUNTIME_LIBRARIES})
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if(TARGET ${lib})
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list(APPEND RUNTIME_LIBRARIES ${lib})
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endif()
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endforeach()
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if(ARG_ALWAYS_CLEAN)
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set(always_clean clean)
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endif()
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list(FIND TOOLCHAIN_TOOLS clang FOUND_CLANG)
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if(FOUND_CLANG GREATER -1)
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set(CLANG_IN_TOOLCHAIN On)
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endif()
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if(RUNTIME_LIBRARIES AND CLANG_IN_TOOLCHAIN)
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list(APPEND TOOLCHAIN_BINS ${RUNTIME_LIBRARIES})
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endif()
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set(STAMP_DIR ${CMAKE_CURRENT_BINARY_DIR}/${name}-stamps/)
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set(BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/${name}-bins/)
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add_custom_target(${name}-clear
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COMMAND ${CMAKE_COMMAND} -E remove_directory ${BINARY_DIR}
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COMMAND ${CMAKE_COMMAND} -E remove_directory ${STAMP_DIR}
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COMMENT "Clobbering ${name} build and stamp directories"
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USES_TERMINAL
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)
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# Find all variables that start with a prefix and propagate them through
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get_cmake_property(variableNames VARIABLES)
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list(APPEND ARG_PASSTHROUGH_PREFIXES ${nameCanon})
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foreach(prefix ${ARG_PASSTHROUGH_PREFIXES})
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foreach(variableName ${variableNames})
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if(variableName MATCHES "^${prefix}")
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string(REPLACE ";" "\;" value "${${variableName}}")
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list(APPEND PASSTHROUGH_VARIABLES
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-D${variableName}=${value})
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endif()
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endforeach()
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endforeach()
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if(ARG_USE_TOOLCHAIN)
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if(CLANG_IN_TOOLCHAIN)
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set(compiler_args -DCMAKE_C_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang
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-DCMAKE_CXX_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang++)
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endif()
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if(llvm-ar IN_LIST TOOLCHAIN_TOOLS)
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list(APPEND compiler_args -DCMAKE_AR=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ar)
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endif()
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if(llvm-ranlib IN_LIST TOOLCHAIN_TOOLS)
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list(APPEND compiler_args -DCMAKE_RANLIB=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ranlib)
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endif()
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list(APPEND ARG_DEPENDS ${TOOLCHAIN_TOOLS})
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endif()
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add_custom_command(
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OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp
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DEPENDS ${ARG_DEPENDS}
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COMMAND ${CMAKE_COMMAND} -E touch ${BINARY_DIR}/CMakeCache.txt
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COMMAND ${CMAKE_COMMAND} -E touch ${STAMP_DIR}/${name}-mkdir
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COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp
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COMMENT "Clobbering bootstrap build and stamp directories"
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)
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add_custom_target(${name}-clobber
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DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp)
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if(ARG_EXCLUDE_FROM_ALL)
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set(exclude EXCLUDE_FROM_ALL 1)
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endif()
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ExternalProject_Add(${name}
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DEPENDS ${ARG_DEPENDS} llvm-config
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${name}-clobber
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PREFIX ${CMAKE_BINARY_DIR}/projects/${name}
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SOURCE_DIR ${source_dir}
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STAMP_DIR ${STAMP_DIR}
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BINARY_DIR ${BINARY_DIR}
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${exclude}
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CMAKE_ARGS ${${nameCanon}_CMAKE_ARGS}
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${compiler_args}
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-DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}
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-DLLVM_BINARY_DIR=${PROJECT_BINARY_DIR}
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-DLLVM_CONFIG_PATH=$<TARGET_FILE:llvm-config>
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-DLLVM_ENABLE_WERROR=${LLVM_ENABLE_WERROR}
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-DPACKAGE_VERSION=${PACKAGE_VERSION}
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-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
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-DCMAKE_MAKE_PROGRAM=${CMAKE_MAKE_PROGRAM}
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${ARG_CMAKE_ARGS}
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${PASSTHROUGH_VARIABLES}
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INSTALL_COMMAND ""
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STEP_TARGETS configure build
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BUILD_ALWAYS 1
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USES_TERMINAL_CONFIGURE 1
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USES_TERMINAL_BUILD 1
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USES_TERMINAL_INSTALL 1
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)
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if(ARG_USE_TOOLCHAIN)
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set(force_deps DEPENDS ${TOOLCHAIN_BINS})
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endif()
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llvm_ExternalProject_BuildCmd(run_clean clean ${BINARY_DIR})
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ExternalProject_Add_Step(${name} clean
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COMMAND ${run_clean}
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COMMENT "Cleaning ${name}..."
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DEPENDEES configure
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${force_deps}
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WORKING_DIRECTORY ${BINARY_DIR}
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EXCLUDE_FROM_MAIN 1
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USES_TERMINAL 1
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)
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ExternalProject_Add_StepTargets(${name} clean)
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if(ARG_USE_TOOLCHAIN)
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add_dependencies(${name}-clean ${name}-clobber)
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set_target_properties(${name}-clean PROPERTIES
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SOURCES ${CMAKE_CURRENT_BINARY_DIR}/${name}-clobber-stamp)
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endif()
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if(NOT ARG_NO_INSTALL)
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install(CODE "execute_process\(COMMAND \${CMAKE_COMMAND} -DCMAKE_INSTALL_PREFIX=\${CMAKE_INSTALL_PREFIX} -P ${BINARY_DIR}/cmake_install.cmake \)"
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COMPONENT ${name})
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add_custom_target(install-${name}
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DEPENDS ${name}
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COMMAND "${CMAKE_COMMAND}"
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-DCMAKE_INSTALL_COMPONENT=${name}
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-P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
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USES_TERMINAL)
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endif()
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# Add top-level targets
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foreach(target ${ARG_EXTRA_TARGETS})
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string(REPLACE ":" ";" target_list ${target})
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list(GET target_list 0 target)
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list(LENGTH target_list target_list_len)
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if(${target_list_len} GREATER 1)
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list(GET target_list 1 target_name)
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else()
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set(target_name "${target}")
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endif()
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llvm_ExternalProject_BuildCmd(build_runtime_cmd ${target} ${BINARY_DIR})
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add_custom_target(${target_name}
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COMMAND ${build_runtime_cmd}
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DEPENDS ${name}-configure
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WORKING_DIRECTORY ${BINARY_DIR}
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VERBATIM
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USES_TERMINAL)
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endforeach()
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endfunction()
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