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llvm-mirror/cmake/modules/LLVMExternalProjectUtils.cmake
Shoaib Meenai a3c544e1b7 [runtimes] Use llvm-libtool-darwin for runtimes build 
It's full featured now and we can use it for the runtimes build instead
of relying on an external libtool, which means the CMAKE_HOST_APPLE
restriction serves no purpose either now. Restrict llvm-lipo to Darwin
targets while I'm here, since it's only needed there.

Reviewed By: phosek

Differential Revision: https://reviews.llvm.org/D86367
2020-08-24 13:48:30 -07:00

322 lines
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CMake
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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" "" ${ARGN})
if(NOT ARG_CONFIGURATION)
set(ARG_CONFIGURATION "$<CONFIG>")
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
# STRIP_TOOL path
# Use provided strip tool instead of the default one.
# )
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;STRIP_TOOL"
${ARGN})
canonicalize_tool_name(${name} nameCanon)
foreach(arg ${ARG_CMAKE_ARGS})
if(arg MATCHES "^-DCMAKE_SYSTEM_NAME=")
string(REGEX REPLACE "^-DCMAKE_SYSTEM_NAME=(.*)$" "\\1" _cmake_system_name "${arg}")
endif()
endforeach()
if(NOT ARG_TOOLCHAIN_TOOLS)
set(ARG_TOOLCHAIN_TOOLS clang lld llvm-ar llvm-ranlib llvm-nm llvm-objdump)
if(_cmake_system_name STREQUAL Darwin)
list(APPEND ARG_TOOLCHAIN_TOOLS llvm-libtool-darwin llvm-lipo)
else()
# TODO: These tools don't fully support Mach-O format yet.
list(APPEND ARG_TOOLCHAIN_TOOLS llvm-objcopy llvm-strip)
endif()
endif()
foreach(tool ${ARG_TOOLCHAIN_TOOLS})
if(TARGET ${tool})
list(APPEND TOOLCHAIN_TOOLS ${tool})
# $<TARGET_FILE:tgt> only works on add_executable or add_library targets
# The below logic mirrors cmake's own implementation
get_target_property(target_type "${tool}" TYPE)
if(NOT target_type STREQUAL "OBJECT_LIBRARY" AND
NOT target_type STREQUAL "UTILITY" AND
NOT target_type STREQUAL "GLOBAL_TARGET" AND
NOT target_type STREQUAL "INTERFACE_LIBRARY")
list(APPEND TOOLCHAIN_BINS $<TARGET_FILE:${tool}>)
endif()
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 AND NOT CMAKE_CROSSCOMPILING)
if(CLANG_IN_TOOLCHAIN)
if(_cmake_system_name STREQUAL Windows)
set(compiler_args -DCMAKE_C_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang-cl${CMAKE_EXECUTABLE_SUFFIX}
-DCMAKE_CXX_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang-cl${CMAKE_EXECUTABLE_SUFFIX}
-DCMAKE_ASM_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang-cl${CMAKE_EXECUTABLE_SUFFIX})
else()
set(compiler_args -DCMAKE_C_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang${CMAKE_EXECUTABLE_SUFFIX}
-DCMAKE_CXX_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang++${CMAKE_EXECUTABLE_SUFFIX}
-DCMAKE_ASM_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang${CMAKE_EXECUTABLE_SUFFIX})
endif()
endif()
if(lld IN_LIST TOOLCHAIN_TOOLS)
if(_cmake_system_name STREQUAL Windows)
list(APPEND compiler_args -DCMAKE_LINKER=${LLVM_RUNTIME_OUTPUT_INTDIR}/lld-link${CMAKE_EXECUTABLE_SUFFIX})
elseif(NOT _cmake_system_name STREQUAL Darwin)
list(APPEND compiler_args -DCMAKE_LINKER=${LLVM_RUNTIME_OUTPUT_INTDIR}/ld.lld${CMAKE_EXECUTABLE_SUFFIX})
endif()
endif()
if(llvm-ar IN_LIST TOOLCHAIN_TOOLS)
list(APPEND compiler_args -DCMAKE_AR=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ar${CMAKE_EXECUTABLE_SUFFIX})
endif()
if(llvm-libtool-darwin IN_LIST TOOLCHAIN_TOOLS)
list(APPEND compiler_args -DCMAKE_LIBTOOL=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-libtool-darwin${CMAKE_EXECUTABLE_SUFFIX})
endif()
if(llvm-lipo IN_LIST TOOLCHAIN_TOOLS)
list(APPEND compiler_args -DCMAKE_LIPO=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-lipo${CMAKE_EXECUTABLE_SUFFIX})
endif()
if(llvm-ranlib IN_LIST TOOLCHAIN_TOOLS)
list(APPEND compiler_args -DCMAKE_RANLIB=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ranlib${CMAKE_EXECUTABLE_SUFFIX})
endif()
if(llvm-nm IN_LIST TOOLCHAIN_TOOLS)
list(APPEND compiler_args -DCMAKE_NM=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-nm${CMAKE_EXECUTABLE_SUFFIX})
endif()
if(llvm-objdump IN_LIST TOOLCHAIN_TOOLS)
list(APPEND compiler_args -DCMAKE_OBJDUMP=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-objdump${CMAKE_EXECUTABLE_SUFFIX})
endif()
if(llvm-objcopy IN_LIST TOOLCHAIN_TOOLS)
list(APPEND compiler_args -DCMAKE_OBJCOPY=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-objcopy${CMAKE_EXECUTABLE_SUFFIX})
endif()
if(llvm-strip IN_LIST TOOLCHAIN_TOOLS AND NOT ARG_STRIP_TOOL)
list(APPEND compiler_args -DCMAKE_STRIP=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-strip${CMAKE_EXECUTABLE_SUFFIX})
endif()
list(APPEND ARG_DEPENDS ${TOOLCHAIN_TOOLS})
endif()
if(ARG_STRIP_TOOL)
list(APPEND compiler_args -DCMAKE_STRIP=${ARG_STRIP_TOOL})
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()
if(CMAKE_SYSROOT)
set(sysroot_arg -DCMAKE_SYSROOT=${CMAKE_SYSROOT})
endif()
if(CMAKE_CROSSCOMPILING)
set(compiler_args -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-DCMAKE_LINKER=${CMAKE_LINKER}
-DCMAKE_AR=${CMAKE_AR}
-DCMAKE_RANLIB=${CMAKE_RANLIB}
-DCMAKE_NM=${CMAKE_NM}
-DCMAKE_OBJCOPY=${CMAKE_OBJCOPY}
-DCMAKE_OBJDUMP=${CMAKE_OBJDUMP}
-DCMAKE_STRIP=${CMAKE_STRIP})
set(llvm_config_path ${LLVM_CONFIG_PATH})
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" CLANG_VERSION
${PACKAGE_VERSION})
set(resource_dir "${LLVM_LIBRARY_DIR}/clang/${CLANG_VERSION}")
set(flag_types ASM C CXX MODULE_LINKER SHARED_LINKER EXE_LINKER)
foreach(type ${flag_types})
set(${type}_flag -DCMAKE_${type}_FLAGS=-resource-dir=${resource_dir})
endforeach()
string(REPLACE ";" "|" flag_string "${flag_types}")
foreach(arg ${ARG_CMAKE_ARGS})
if(arg MATCHES "^-DCMAKE_(${flag_string})_FLAGS")
foreach(type ${flag_types})
if(arg MATCHES "^-DCMAKE_${type}_FLAGS")
string(REGEX REPLACE "^-DCMAKE_${type}_FLAGS=(.*)$" "\\1" flag_value "${arg}")
set(${type}_flag "${${type}_flag} ${flag_value}")
endif()
endforeach()
else()
list(APPEND cmake_args ${arg})
endif()
endforeach()
foreach(type ${flag_types})
list(APPEND cmake_args ${${type}_flag})
endforeach()
endif()
else()
set(llvm_config_path "$<TARGET_FILE:llvm-config>")
set(cmake_args ${ARG_CMAKE_ARGS})
endif()
ExternalProject_Add(${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}
${sysroot_arg}
-DLLVM_BINARY_DIR=${PROJECT_BINARY_DIR}
-DLLVM_CONFIG_PATH=${llvm_config_path}
-DLLVM_ENABLE_WERROR=${LLVM_ENABLE_WERROR}
-DLLVM_HOST_TRIPLE=${LLVM_HOST_TRIPLE}
-DLLVM_HAVE_LINK_VERSION_SCRIPT=${LLVM_HAVE_LINK_VERSION_SCRIPT}
-DLLVM_USE_RELATIVE_PATHS_IN_DEBUG_INFO=${LLVM_USE_RELATIVE_PATHS_IN_DEBUG_INFO}
-DLLVM_USE_RELATIVE_PATHS_IN_FILES=${LLVM_USE_RELATIVE_PATHS_IN_FILES}
-DLLVM_LIT_ARGS=${LLVM_LIT_ARGS}
-DLLVM_SOURCE_PREFIX=${LLVM_SOURCE_PREFIX}
-DPACKAGE_VERSION=${PACKAGE_VERSION}
-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
-DCMAKE_MAKE_PROGRAM=${CMAKE_MAKE_PROGRAM}
-DCMAKE_EXPORT_COMPILE_COMMANDS=1
${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
LIST_SEPARATOR |
)
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\(COMMAND \${CMAKE_COMMAND} -DCMAKE_INSTALL_PREFIX=\${CMAKE_INSTALL_PREFIX} -DCMAKE_INSTALL_DO_STRIP=\${CMAKE_INSTALL_DO_STRIP} -P ${BINARY_DIR}/cmake_install.cmake\)"
COMPONENT ${name})
add_llvm_install_targets(install-${name}
DEPENDS ${name}
COMPONENT ${name})
endif()
# Add top-level targets
foreach(target ${ARG_EXTRA_TARGETS})
if(DEFINED ${target})
set(external_target "${${target}}")
else()
set(external_target "${target}")
endif()
llvm_ExternalProject_BuildCmd(build_runtime_cmd ${external_target} ${BINARY_DIR})
add_custom_target(${target}
COMMAND ${build_runtime_cmd}
DEPENDS ${name}-configure
WORKING_DIRECTORY ${BINARY_DIR}
VERBATIM
USES_TERMINAL)
endforeach()
endfunction()
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